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freebsd-skq/contrib/gcc/c-common.c

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Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Subroutines shared by all languages that are variants of C.
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
This file is part of GCC.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
You should have received a copy of the GNU General Public License
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
along with GCC; see the file COPYING. If not, write to the Free
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "config.h"
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
#include "system.h"
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
#include "coretypes.h"
#include "tm.h"
#include "intl.h"
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
#include "tree.h"
#include "flags.h"
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
#include "output.h"
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
#include "c-pragma.h"
#include "rtl.h"
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#include "ggc.h"
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
#include "varray.h"
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#include "expr.h"
#include "c-common.h"
#include "diagnostic.h"
#include "tm_p.h"
#include "obstack.h"
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
#include "cpplib.h"
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#include "target.h"
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
#include "langhooks.h"
#include "tree-inline.h"
#include "c-tree.h"
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
#include "toplev.h"
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#include "tree-iterator.h"
#include "hashtab.h"
#include "tree-mudflap.h"
#include "opts.h"
#include "real.h"
#include "cgraph.h"
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
cpp_reader *parse_in; /* Declared in c-pragma.h. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* We let tm.h override the types used here, to handle trivial differences
such as the choice of unsigned int or long unsigned int for size_t.
When machines start needing nontrivial differences in the size type,
it would be best to do something here to figure out automatically
from other information what type to use. */
#ifndef SIZE_TYPE
#define SIZE_TYPE "long unsigned int"
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
#endif
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#ifndef PID_TYPE
#define PID_TYPE "int"
#endif
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#ifndef WCHAR_TYPE
#define WCHAR_TYPE "int"
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
#endif
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* WCHAR_TYPE gets overridden by -fshort-wchar. */
#define MODIFIED_WCHAR_TYPE \
(flag_short_wchar ? "short unsigned int" : WCHAR_TYPE)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#ifndef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"
#endif
#ifndef WINT_TYPE
#define WINT_TYPE "unsigned int"
#endif
#ifndef INTMAX_TYPE
#define INTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
? "int" \
: ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
? "long int" \
: "long long int"))
#endif
#ifndef UINTMAX_TYPE
#define UINTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
? "unsigned int" \
: ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \
? "long unsigned int" \
: "long long unsigned int"))
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
#endif
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* The following symbols are subsumed in the c_global_trees array, and
listed here individually for documentation purposes.
INTEGER_TYPE and REAL_TYPE nodes for the standard data types.
tree short_integer_type_node;
tree long_integer_type_node;
tree long_long_integer_type_node;
tree short_unsigned_type_node;
tree long_unsigned_type_node;
tree long_long_unsigned_type_node;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
tree truthvalue_type_node;
tree truthvalue_false_node;
tree truthvalue_true_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree ptrdiff_type_node;
tree unsigned_char_type_node;
tree signed_char_type_node;
tree wchar_type_node;
tree signed_wchar_type_node;
tree unsigned_wchar_type_node;
tree float_type_node;
tree double_type_node;
tree long_double_type_node;
tree complex_integer_type_node;
tree complex_float_type_node;
tree complex_double_type_node;
tree complex_long_double_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree dfloat32_type_node;
tree dfloat64_type_node;
tree_dfloat128_type_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree intQI_type_node;
tree intHI_type_node;
tree intSI_type_node;
tree intDI_type_node;
tree intTI_type_node;
tree unsigned_intQI_type_node;
tree unsigned_intHI_type_node;
tree unsigned_intSI_type_node;
tree unsigned_intDI_type_node;
tree unsigned_intTI_type_node;
tree widest_integer_literal_type_node;
tree widest_unsigned_literal_type_node;
Nodes for types `void *' and `const void *'.
tree ptr_type_node, const_ptr_type_node;
Nodes for types `char *' and `const char *'.
tree string_type_node, const_string_type_node;
Type `char[SOMENUMBER]'.
Used when an array of char is needed and the size is irrelevant.
tree char_array_type_node;
Type `int[SOMENUMBER]' or something like it.
Used when an array of int needed and the size is irrelevant.
tree int_array_type_node;
Type `wchar_t[SOMENUMBER]' or something like it.
Used when a wide string literal is created.
tree wchar_array_type_node;
Type `int ()' -- used for implicit declaration of functions.
tree default_function_type;
A VOID_TYPE node, packaged in a TREE_LIST.
tree void_list_node;
The lazily created VAR_DECLs for __FUNCTION__, __PRETTY_FUNCTION__,
and __func__. (C doesn't generate __FUNCTION__ and__PRETTY_FUNCTION__
VAR_DECLS, but C++ does.)
tree function_name_decl_node;
tree pretty_function_name_decl_node;
tree c99_function_name_decl_node;
Stack of nested function name VAR_DECLs.
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree saved_function_name_decls;
*/
tree c_global_trees[CTI_MAX];
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Switches common to the C front ends. */
/* Nonzero if prepreprocessing only. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
int flag_preprocess_only;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Nonzero means don't output line number information. */
char flag_no_line_commands;
/* Nonzero causes -E output not to be done, but directives such as
#define that have side effects are still obeyed. */
char flag_no_output;
/* Nonzero means dump macros in some fashion. */
char flag_dump_macros;
/* Nonzero means pass #include lines through to the output. */
char flag_dump_includes;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Nonzero means process PCH files while preprocessing. */
bool flag_pch_preprocess;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* The file name to which we should write a precompiled header, or
NULL if no header will be written in this compile. */
const char *pch_file;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero if an ISO standard was selected. It rejects macros in the
user's namespace. */
int flag_iso;
/* Nonzero if -undef was given. It suppresses target built-in macros
and assertions. */
int flag_undef;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Nonzero means don't recognize the non-ANSI builtin functions. */
int flag_no_builtin;
/* Nonzero means don't recognize the non-ANSI builtin functions.
-ansi sets this. */
int flag_no_nonansi_builtin;
/* Nonzero means give `double' the same size as `float'. */
int flag_short_double;
/* Nonzero means give `wchar_t' the same size as `short'. */
int flag_short_wchar;
gcc: Add -flax-vector-conversions Obtained from: gcc 4.3 (rev. 120572, 120688; GPLv2)
2013-12-05 21:22:51 +00:00
/* Nonzero means allow implicit conversions between vectors with
differing numbers of subparts and/or differing element types. */
int flag_lax_vector_conversions;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero means allow Microsoft extensions without warnings or errors. */
int flag_ms_extensions;
/* Nonzero means don't recognize the keyword `asm'. */
int flag_no_asm;
/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */
int flag_signed_bitfields = 1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Warn about #pragma directives that are not recognized. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
int warn_unknown_pragmas; /* Tri state variable. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Warn about format/argument anomalies in calls to formatted I/O functions
(*printf, *scanf, strftime, strfmon, etc.). */
int warn_format;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Warn about using __null (as NULL in C++) as sentinel. For code compiled
with GCC this doesn't matter as __null is guaranteed to have the right
size. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int warn_strict_null_sentinel;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Zero means that faster, ...NonNil variants of objc_msgSend...
calls will be used in ObjC; passing nil receivers to such calls
will most likely result in crashes. */
int flag_nil_receivers = 1;
/* Nonzero means that code generation will be altered to support
"zero-link" execution. This currently affects ObjC only, but may
affect other languages in the future. */
int flag_zero_link = 0;
/* Nonzero means emit an '__OBJC, __image_info' for the current translation
unit. It will inform the ObjC runtime that class definition(s) herein
contained are to replace one(s) previously loaded. */
int flag_replace_objc_classes = 0;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* C/ObjC language option variables. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero means allow type mismatches in conditional expressions;
just make their values `void'. */
int flag_cond_mismatch;
/* Nonzero means enable C89 Amendment 1 features. */
int flag_isoc94;
/* Nonzero means use the ISO C99 dialect of C. */
int flag_isoc99;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Nonzero means that we have builtin functions, and main is an int. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
int flag_hosted = 1;
/* Warn if main is suspicious. */
int warn_main;
/* ObjC language option variables. */
/* Open and close the file for outputting class declarations, if
requested (ObjC). */
int flag_gen_declaration;
/* Tells the compiler that this is a special run. Do not perform any
compiling, instead we are to test some platform dependent features
and output a C header file with appropriate definitions. */
int print_struct_values;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Tells the compiler what is the constant string class for Objc. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
const char *constant_string_class_name;
/* C++ language option variables. */
/* Nonzero means don't recognize any extension keywords. */
int flag_no_gnu_keywords;
/* Nonzero means do emit exported implementations of functions even if
they can be inlined. */
int flag_implement_inlines = 1;
/* Nonzero means that implicit instantiations will be emitted if needed. */
int flag_implicit_templates = 1;
/* Nonzero means that implicit instantiations of inline templates will be
emitted if needed, even if instantiations of non-inline templates
aren't. */
int flag_implicit_inline_templates = 1;
/* Nonzero means generate separate instantiation control files and
juggle them at link time. */
int flag_use_repository;
/* Nonzero if we want to issue diagnostics that the standard says are not
required. */
int flag_optional_diags = 1;
/* Nonzero means we should attempt to elide constructors when possible. */
int flag_elide_constructors = 1;
/* Nonzero means that member functions defined in class scope are
inline by default. */
int flag_default_inline = 1;
/* Controls whether compiler generates 'type descriptor' that give
run-time type information. */
int flag_rtti = 1;
/* Nonzero if we want to conserve space in the .o files. We do this
by putting uninitialized data and runtime initialized data into
.common instead of .data at the expense of not flagging multiple
definitions. */
int flag_conserve_space;
/* Nonzero if we want to obey access control semantics. */
int flag_access_control = 1;
/* Nonzero if we want to check the return value of new and avoid calling
constructors if it is a null pointer. */
int flag_check_new;
/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
initialization variables.
0: Old rules, set by -fno-for-scope.
2: New ISO rules, set by -ffor-scope.
1: Try to implement new ISO rules, but with backup compatibility
(and warnings). This is the default, for now. */
int flag_new_for_scope = 1;
/* Nonzero if we want to emit defined symbols with common-like linkage as
weak symbols where possible, in order to conform to C++ semantics.
Otherwise, emit them as local symbols. */
int flag_weak = 1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* 0 means we want the preprocessor to not emit line directives for
the current working directory. 1 means we want it to do it. -1
means we should decide depending on whether debugging information
is being emitted or not. */
int flag_working_directory = -1;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero to use __cxa_atexit, rather than atexit, to register
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
destructors for local statics and global objects. '2' means it has been
set nonzero as a default, not by a command-line flag. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
int flag_use_cxa_atexit = DEFAULT_USE_CXA_ATEXIT;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Nonzero to use __cxa_get_exception_ptr in C++ exception-handling
code. '2' means it has not been set explicitly on the command line. */
int flag_use_cxa_get_exception_ptr = 2;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero means make the default pedwarns warnings instead of errors.
The value of this flag is ignored if -pedantic is specified. */
int flag_permissive;
/* Nonzero means to implement standard semantics for exception
specifications, calling unexpected if an exception is thrown that
doesn't match the specification. Zero means to treat them as
assertions and optimize accordingly, but not check them. */
int flag_enforce_eh_specs = 1;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Nonzero means to generate thread-safe code for initializing local
statics. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int flag_threadsafe_statics = 1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Nonzero means warn about implicit declarations. */
int warn_implicit = 1;
/* Maximum template instantiation depth. This limit is rather
arbitrary, but it exists to limit the time it takes to notice
infinite template instantiations. */
int max_tinst_depth = 500;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* The elements of `ridpointers' are identifier nodes for the reserved
type names and storage classes. It is indexed by a RID_... value. */
tree *ridpointers;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
tree (*make_fname_decl) (tree, int);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
/* Nonzero means the expression being parsed will never be evaluated.
This is a count, since unevaluated expressions can nest. */
int skip_evaluation;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Information about how a function name is generated. */
struct fname_var_t
{
tree *const decl; /* pointer to the VAR_DECL. */
const unsigned rid; /* RID number for the identifier. */
const int pretty; /* How pretty is it? */
};
/* The three ways of getting then name of the current function. */
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
const struct fname_var_t fname_vars[] =
{
/* C99 compliant __func__, must be first. */
{&c99_function_name_decl_node, RID_C99_FUNCTION_NAME, 0},
/* GCC __FUNCTION__ compliant. */
{&function_name_decl_node, RID_FUNCTION_NAME, 0},
/* GCC __PRETTY_FUNCTION__ compliant. */
{&pretty_function_name_decl_node, RID_PRETTY_FUNCTION_NAME, 1},
{NULL, 0, 0},
};
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static int constant_fits_type_p (tree, tree);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree check_case_value (tree);
static bool check_case_bounds (tree, tree, tree *, tree *);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree handle_packed_attribute (tree *, tree, tree, int, bool *);
static tree handle_nocommon_attribute (tree *, tree, tree, int, bool *);
static tree handle_common_attribute (tree *, tree, tree, int, bool *);
static tree handle_noreturn_attribute (tree *, tree, tree, int, bool *);
static tree handle_noinline_attribute (tree *, tree, tree, int, bool *);
static tree handle_always_inline_attribute (tree *, tree, tree, int,
bool *);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree handle_gnu_inline_attribute (tree *, tree, tree, int,
bool *);
static tree handle_flatten_attribute (tree *, tree, tree, int, bool *);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree handle_used_attribute (tree *, tree, tree, int, bool *);
static tree handle_unused_attribute (tree *, tree, tree, int, bool *);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree handle_externally_visible_attribute (tree *, tree, tree, int,
bool *);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree handle_const_attribute (tree *, tree, tree, int, bool *);
static tree handle_transparent_union_attribute (tree *, tree, tree,
int, bool *);
static tree handle_constructor_attribute (tree *, tree, tree, int, bool *);
static tree handle_destructor_attribute (tree *, tree, tree, int, bool *);
static tree handle_mode_attribute (tree *, tree, tree, int, bool *);
static tree handle_section_attribute (tree *, tree, tree, int, bool *);
static tree handle_aligned_attribute (tree *, tree, tree, int, bool *);
static tree handle_weak_attribute (tree *, tree, tree, int, bool *) ;
static tree handle_alias_attribute (tree *, tree, tree, int, bool *);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree handle_weakref_attribute (tree *, tree, tree, int, bool *) ;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree handle_visibility_attribute (tree *, tree, tree, int,
bool *);
static tree handle_tls_model_attribute (tree *, tree, tree, int,
bool *);
static tree handle_no_instrument_function_attribute (tree *, tree,
tree, int, bool *);
static tree handle_malloc_attribute (tree *, tree, tree, int, bool *);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree handle_returns_twice_attribute (tree *, tree, tree, int, bool *);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree handle_no_limit_stack_attribute (tree *, tree, tree, int,
bool *);
static tree handle_pure_attribute (tree *, tree, tree, int, bool *);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree handle_novops_attribute (tree *, tree, tree, int, bool *);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree handle_deprecated_attribute (tree *, tree, tree, int,
bool *);
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
/* APPLE LOCAL begin "unavailable" attribute (Radar 2809697) --ilr */
static tree handle_unavailable_attribute (tree *, tree, tree, int, bool *);
/* APPLE LOCAL end "unavailable" attribute --ilr */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree handle_vector_size_attribute (tree *, tree, tree, int,
bool *);
static tree handle_nonnull_attribute (tree *, tree, tree, int, bool *);
static tree handle_nothrow_attribute (tree *, tree, tree, int, bool *);
static tree handle_cleanup_attribute (tree *, tree, tree, int, bool *);
static tree handle_warn_unused_result_attribute (tree *, tree, tree, int,
bool *);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree handle_sentinel_attribute (tree *, tree, tree, int, bool *);
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL radar 5932809 - copyable byref blocks */
static tree handle_blocks_attribute (tree *, tree, tree, int, bool *);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static void check_function_nonnull (tree, tree);
static void check_nonnull_arg (void *, tree, unsigned HOST_WIDE_INT);
static bool nonnull_check_p (tree, unsigned HOST_WIDE_INT);
static bool get_nonnull_operand (tree, unsigned HOST_WIDE_INT *);
static int resort_field_decl_cmp (const void *, const void *);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Table of machine-independent attributes common to all C-like languages. */
const struct attribute_spec c_common_attribute_table[] =
{
/* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */
{ "packed", 0, 0, false, false, false,
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_packed_attribute },
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{ "nocommon", 0, 0, true, false, false,
handle_nocommon_attribute },
{ "common", 0, 0, true, false, false,
handle_common_attribute },
/* FIXME: logically, noreturn attributes should be listed as
"false, true, true" and apply to function types. But implementing this
would require all the places in the compiler that use TREE_THIS_VOLATILE
on a decl to identify non-returning functions to be located and fixed
to check the function type instead. */
{ "noreturn", 0, 0, true, false, false,
handle_noreturn_attribute },
{ "volatile", 0, 0, true, false, false,
handle_noreturn_attribute },
{ "noinline", 0, 0, true, false, false,
handle_noinline_attribute },
{ "always_inline", 0, 0, true, false, false,
handle_always_inline_attribute },
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{ "gnu_inline", 0, 0, true, false, false,
handle_gnu_inline_attribute },
{ "flatten", 0, 0, true, false, false,
handle_flatten_attribute },
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{ "used", 0, 0, true, false, false,
handle_used_attribute },
{ "unused", 0, 0, false, false, false,
handle_unused_attribute },
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{ "externally_visible", 0, 0, true, false, false,
handle_externally_visible_attribute },
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* The same comments as for noreturn attributes apply to const ones. */
{ "const", 0, 0, true, false, false,
handle_const_attribute },
{ "transparent_union", 0, 0, false, false, false,
handle_transparent_union_attribute },
{ "constructor", 0, 0, true, false, false,
handle_constructor_attribute },
{ "destructor", 0, 0, true, false, false,
handle_destructor_attribute },
{ "mode", 1, 1, false, true, false,
handle_mode_attribute },
{ "section", 1, 1, true, false, false,
handle_section_attribute },
{ "aligned", 0, 1, false, false, false,
handle_aligned_attribute },
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL weak types 5954418 */
{ "weak", 0, 0, false, false, false,
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
handle_weak_attribute },
{ "alias", 1, 1, true, false, false,
handle_alias_attribute },
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{ "weakref", 0, 1, true, false, false,
handle_weakref_attribute },
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{ "no_instrument_function", 0, 0, true, false, false,
handle_no_instrument_function_attribute },
{ "malloc", 0, 0, true, false, false,
handle_malloc_attribute },
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{ "returns_twice", 0, 0, true, false, false,
handle_returns_twice_attribute },
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{ "no_stack_limit", 0, 0, true, false, false,
handle_no_limit_stack_attribute },
{ "pure", 0, 0, true, false, false,
handle_pure_attribute },
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* For internal use (marking of builtins) only. The name contains space
to prevent its usage in source code. */
{ "no vops", 0, 0, true, false, false,
handle_novops_attribute },
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{ "deprecated", 0, 0, false, false, false,
handle_deprecated_attribute },
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
/* APPLE LOCAL begin "unavailable" attribute (Radar 2809697) --ilr */
{ "unavailable", 0, 0, false, false, false,
handle_unavailable_attribute },
/* APPLE LOCAL end "unavailable" attribute --ilr */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{ "vector_size", 1, 1, false, true, false,
handle_vector_size_attribute },
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{ "visibility", 1, 1, false, false, false,
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
handle_visibility_attribute },
{ "tls_model", 1, 1, true, false, false,
handle_tls_model_attribute },
{ "nonnull", 0, -1, false, true, true,
handle_nonnull_attribute },
{ "nothrow", 0, 0, true, false, false,
handle_nothrow_attribute },
{ "may_alias", 0, 0, false, true, false, NULL },
{ "cleanup", 1, 1, true, false, false,
handle_cleanup_attribute },
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{ "warn_unused_result", 0, 0, false, true, true,
handle_warn_unused_result_attribute },
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{ "sentinel", 0, 1, false, true, true,
handle_sentinel_attribute },
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL radar 5932809 - copyable byref blocks */
{ "blocks", 1, 1, true, false, false, handle_blocks_attribute },
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{ NULL, 0, 0, false, false, false, NULL }
};
/* Give the specifications for the format attributes, used by C and all
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
descendants. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
const struct attribute_spec c_common_format_attribute_table[] =
{
/* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */
{ "format", 3, 3, false, true, true,
handle_format_attribute },
{ "format_arg", 1, 1, false, true, true,
handle_format_arg_attribute },
{ NULL, 0, 0, false, false, false, NULL }
};
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Push current bindings for the function name VAR_DECLS. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
start_fname_decls (void)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
unsigned ix;
tree saved = NULL_TREE;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
for (ix = 0; fname_vars[ix].decl; ix++)
{
tree decl = *fname_vars[ix].decl;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (decl)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
saved = tree_cons (decl, build_int_cst (NULL_TREE, ix), saved);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
*fname_vars[ix].decl = NULL_TREE;
}
}
if (saved || saved_function_name_decls)
/* Normally they'll have been NULL, so only push if we've got a
stack, or they are non-NULL. */
saved_function_name_decls = tree_cons (saved, NULL_TREE,
saved_function_name_decls);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Finish up the current bindings, adding them into the current function's
statement tree. This must be done _before_ finish_stmt_tree is called.
If there is no current function, we must be at file scope and no statements
are involved. Pop the previous bindings. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
finish_fname_decls (void)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
unsigned ix;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree stmts = NULL_TREE;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree stack = saved_function_name_decls;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
for (; stack && TREE_VALUE (stack); stack = TREE_CHAIN (stack))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
append_to_statement_list (TREE_VALUE (stack), &stmts);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (stmts)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree *bodyp = &DECL_SAVED_TREE (current_function_decl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (*bodyp) == BIND_EXPR)
bodyp = &BIND_EXPR_BODY (*bodyp);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
append_to_statement_list_force (*bodyp, &stmts);
*bodyp = stmts;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
for (ix = 0; fname_vars[ix].decl; ix++)
*fname_vars[ix].decl = NULL_TREE;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (stack)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* We had saved values, restore them. */
tree saved;
for (saved = TREE_PURPOSE (stack); saved; saved = TREE_CHAIN (saved))
{
tree decl = TREE_PURPOSE (saved);
unsigned ix = TREE_INT_CST_LOW (TREE_VALUE (saved));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
*fname_vars[ix].decl = decl;
}
stack = TREE_CHAIN (stack);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
saved_function_name_decls = stack;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Return the text name of the current function, suitably prettified
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
by PRETTY_P. Return string must be freed by caller. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
const char *
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
fname_as_string (int pretty_p)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
const char *name = "top level";
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
char *namep;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
int vrb = 2;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!pretty_p)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
name = "";
vrb = 0;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (current_function_decl)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
name = lang_hooks.decl_printable_name (current_function_decl, vrb);
if (c_lex_string_translate)
{
int len = strlen (name) + 3; /* Two for '"'s. One for NULL. */
cpp_string cstr = { 0, 0 }, strname;
namep = XNEWVEC (char, len);
snprintf (namep, len, "\"%s\"", name);
strname.text = (unsigned char *) namep;
strname.len = len - 1;
if (cpp_interpret_string (parse_in, &strname, 1, &cstr, false))
{
XDELETEVEC (namep);
return (char *) cstr.text;
}
}
else
namep = xstrdup (name);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return namep;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Expand DECL if it declares an entity not handled by the
common code. */
int
c_expand_decl (tree decl)
{
if (TREE_CODE (decl) == VAR_DECL && !TREE_STATIC (decl))
{
/* Let the back-end know about this variable. */
if (!anon_aggr_type_p (TREE_TYPE (decl)))
emit_local_var (decl);
else
expand_anon_union_decl (decl, NULL_TREE,
DECL_ANON_UNION_ELEMS (decl));
}
else
return 0;
return 1;
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return the VAR_DECL for a const char array naming the current
function. If the VAR_DECL has not yet been created, create it
now. RID indicates how it should be formatted and IDENTIFIER_NODE
ID is its name (unfortunately C and C++ hold the RID values of
keywords in different places, so we can't derive RID from ID in
this language independent code. */
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
fname_decl (unsigned int rid, tree id)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
unsigned ix;
tree decl = NULL_TREE;
for (ix = 0; fname_vars[ix].decl; ix++)
if (fname_vars[ix].rid == rid)
break;
decl = *fname_vars[ix].decl;
if (!decl)
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* If a tree is built here, it would normally have the lineno of
the current statement. Later this tree will be moved to the
beginning of the function and this line number will be wrong.
To avoid this problem set the lineno to 0 here; that prevents
it from appearing in the RTL. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree stmts;
location_t saved_location = input_location;
#ifdef USE_MAPPED_LOCATION
input_location = UNKNOWN_LOCATION;
#else
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
input_line = 0;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#endif
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
stmts = push_stmt_list ();
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
decl = (*make_fname_decl) (id, fname_vars[ix].pretty);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
stmts = pop_stmt_list (stmts);
if (!IS_EMPTY_STMT (stmts))
saved_function_name_decls
= tree_cons (decl, stmts, saved_function_name_decls);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
*fname_vars[ix].decl = decl;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
input_location = saved_location;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
if (!ix && !current_function_decl)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
pedwarn ("%qD is not defined outside of function scope", decl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return decl;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Given a STRING_CST, give it a suitable array-of-chars data type. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
fix_string_type (tree value)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
const int wchar_bytes = TYPE_PRECISION (wchar_type_node) / BITS_PER_UNIT;
const int wide_flag = TREE_TYPE (value) == wchar_array_type_node;
int length = TREE_STRING_LENGTH (value);
int nchars;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree e_type, i_type, a_type;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
/* Compute the number of elements, for the array type. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
nchars = wide_flag ? length / wchar_bytes : length;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* C89 2.2.4.1, C99 5.2.4.1 (Translation limits). The analogous
limit in C++98 Annex B is very large (65536) and is not normative,
so we do not diagnose it (warn_overlength_strings is forced off
in c_common_post_options). */
if (warn_overlength_strings)
{
const int nchars_max = flag_isoc99 ? 4095 : 509;
const int relevant_std = flag_isoc99 ? 99 : 90;
if (nchars - 1 > nchars_max)
/* Translators: The %d after 'ISO C' will be 90 or 99. Do not
separate the %d from the 'C'. 'ISO' should not be
translated, but it may be moved after 'C%d' in languages
where modifiers follow nouns. */
pedwarn ("string length %qd is greater than the length %qd "
"ISO C%d compilers are required to support",
nchars - 1, nchars_max, relevant_std);
}
/* Create the array type for the string constant. The ISO C++
standard says that a string literal has type `const char[N]' or
`const wchar_t[N]'. We use the same logic when invoked as a C
front-end with -Wwrite-strings.
??? We should change the type of an expression depending on the
state of a warning flag. We should just be warning -- see how
this is handled in the C++ front-end for the deprecated implicit
conversion from string literals to `char*' or `wchar_t*'.
The C++ front end relies on TYPE_MAIN_VARIANT of a cv-qualified
array type being the unqualified version of that type.
Therefore, if we are constructing an array of const char, we must
construct the matching unqualified array type first. The C front
end does not require this, but it does no harm, so we do it
unconditionally. */
e_type = wide_flag ? wchar_type_node : char_type_node;
i_type = build_index_type (build_int_cst (NULL_TREE, nchars - 1));
a_type = build_array_type (e_type, i_type);
if (c_dialect_cxx() || warn_write_strings)
a_type = c_build_qualified_type (a_type, TYPE_QUAL_CONST);
TREE_TYPE (value) = a_type;
Merge our -fformat-extensions and printf0() into GCC 2.95.2.
1999-11-01 18:41:09 +00:00
TREE_CONSTANT (value) = 1;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
TREE_INVARIANT (value) = 1;
TREE_READONLY (value) = 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
TREE_STATIC (value) = 1;
return value;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Print a warning if a constant expression had overflow in folding.
Invoke this function on every expression that the language
requires to be a constant expression.
Note the ANSI C standard says it is erroneous for a
constant expression to overflow. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
constant_expression_warning (tree value)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if ((TREE_CODE (value) == INTEGER_CST || TREE_CODE (value) == REAL_CST
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
|| TREE_CODE (value) == VECTOR_CST
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
|| TREE_CODE (value) == COMPLEX_CST)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& TREE_CONSTANT_OVERFLOW (value)
&& warn_overflow
&& pedantic)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
pedwarn ("overflow in constant expression");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
gcc: Make use of TREE_OVERFLOW_P. While it was brought in r258179 only to fix a build issue, bringing the rest of the change has the advantage of fixing GCC/19978. Obtained from: gcc 4.3 (rev. 120505; GPLv2) MFC after: 1 week
2013-11-29 05:00:07 +00:00
/* Print a warning if an expression had overflow in folding and its
operands hadn't.
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
Invoke this function on every expression that
(1) appears in the source code, and
gcc: Make use of TREE_OVERFLOW_P. While it was brought in r258179 only to fix a build issue, bringing the rest of the change has the advantage of fixing GCC/19978. Obtained from: gcc 4.3 (rev. 120505; GPLv2) MFC after: 1 week
2013-11-29 05:00:07 +00:00
(2) is a constant expression that overflowed, and
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
(3) is not already checked by convert_and_check;
gcc: Make use of TREE_OVERFLOW_P. While it was brought in r258179 only to fix a build issue, bringing the rest of the change has the advantage of fixing GCC/19978. Obtained from: gcc 4.3 (rev. 120505; GPLv2) MFC after: 1 week
2013-11-29 05:00:07 +00:00
however, do not invoke this function on operands of explicit casts
or when the expression is the result of an operator and any operand
already overflowed. */
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
overflow_warning (tree value)
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
{
gcc: Make use of TREE_OVERFLOW_P. While it was brought in r258179 only to fix a build issue, bringing the rest of the change has the advantage of fixing GCC/19978. Obtained from: gcc 4.3 (rev. 120505; GPLv2) MFC after: 1 week
2013-11-29 05:00:07 +00:00
if (skip_evaluation) return;
switch (TREE_CODE (value))
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
{
gcc: Make use of TREE_OVERFLOW_P. While it was brought in r258179 only to fix a build issue, bringing the rest of the change has the advantage of fixing GCC/19978. Obtained from: gcc 4.3 (rev. 120505; GPLv2) MFC after: 1 week
2013-11-29 05:00:07 +00:00
case INTEGER_CST:
warning (OPT_Woverflow, "integer overflow in expression");
break;
case REAL_CST:
warning (OPT_Woverflow, "floating point overflow in expression");
break;
case VECTOR_CST:
warning (OPT_Woverflow, "vector overflow in expression");
break;
case COMPLEX_CST:
if (TREE_CODE (TREE_REALPART (value)) == INTEGER_CST)
warning (OPT_Woverflow, "complex integer overflow in expression");
else if (TREE_CODE (TREE_REALPART (value)) == REAL_CST)
warning (OPT_Woverflow, "complex floating point overflow in expression");
break;
default:
break;
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
}
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Print a warning if a large constant is truncated to unsigned,
or if -Wconversion is used and a constant < 0 is converted to unsigned.
Invoke this function on every expression that might be implicitly
converted to an unsigned type. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
unsigned_conversion_warning (tree result, tree operand)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
tree type = TREE_TYPE (result);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (TREE_CODE (operand) == INTEGER_CST
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
&& TREE_CODE (type) == INTEGER_TYPE
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& TYPE_UNSIGNED (type)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
&& skip_evaluation == 0
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
&& !int_fits_type_p (operand, type))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (!int_fits_type_p (operand, c_common_signed_type (type)))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* This detects cases like converting -129 or 256 to unsigned char. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Woverflow,
"large integer implicitly truncated to unsigned type");
else
warning (OPT_Wconversion,
"negative integer implicitly converted to unsigned type");
}
}
/* Print a warning about casts that might indicate violation
of strict aliasing rules if -Wstrict-aliasing is used and
strict aliasing mode is in effect. OTYPE is the original
TREE_TYPE of EXPR, and TYPE the type we're casting to. */
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
bool
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
strict_aliasing_warning (tree otype, tree type, tree expr)
{
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
if (!(flag_strict_aliasing && POINTER_TYPE_P (type)
&& POINTER_TYPE_P (otype) && !VOID_TYPE_P (TREE_TYPE (type))))
return false;
if ((warn_strict_aliasing > 1) && TREE_CODE (expr) == ADDR_EXPR
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& (DECL_P (TREE_OPERAND (expr, 0))
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
|| handled_component_p (TREE_OPERAND (expr, 0))))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{
/* Casting the address of an object to non void pointer. Warn
if the cast breaks type based aliasing. */
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
if (!COMPLETE_TYPE_P (TREE_TYPE (type)) && warn_strict_aliasing == 2)
{
warning (OPT_Wstrict_aliasing, "type-punning to incomplete type "
"might break strict-aliasing rules");
return true;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
else
{
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
/* warn_strict_aliasing >= 3. This includes the default (3).
Only warn if the cast is dereferenced immediately. */
HOST_WIDE_INT set1 =
get_alias_set (TREE_TYPE (TREE_OPERAND (expr, 0)));
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
HOST_WIDE_INT set2 = get_alias_set (TREE_TYPE (type));
if (!alias_sets_conflict_p (set1, set2))
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
{
warning (OPT_Wstrict_aliasing, "dereferencing type-punned "
"pointer will break strict-aliasing rules");
return true;
}
else if (warn_strict_aliasing == 2
&& !alias_sets_might_conflict_p (set1, set2))
{
warning (OPT_Wstrict_aliasing, "dereferencing type-punned "
"pointer might break strict-aliasing rules");
return true;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
else
if ((warn_strict_aliasing == 1) && !VOID_TYPE_P (TREE_TYPE (otype)))
{
/* At this level, warn for any conversions, even if an address is
not taken in the same statement. This will likely produce many
false positives, but could be useful to pinpoint problems that
are not revealed at higher levels. */
HOST_WIDE_INT set1 = get_alias_set (TREE_TYPE (otype));
HOST_WIDE_INT set2 = get_alias_set (TREE_TYPE (type));
if (!COMPLETE_TYPE_P(type)
|| !alias_sets_might_conflict_p (set1, set2))
{
warning (OPT_Wstrict_aliasing, "dereferencing type-punned "
"pointer might break strict-aliasing rules");
return true;
}
}
return false;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Print a warning about if (); or if () .. else; constructs
via the special empty statement node that we create. INNER_THEN
and INNER_ELSE are the statement lists of the if and the else
block. */
void
empty_body_warning (tree inner_then, tree inner_else)
{
if (extra_warnings)
{
if (TREE_CODE (inner_then) == STATEMENT_LIST
&& STATEMENT_LIST_TAIL (inner_then))
inner_then = STATEMENT_LIST_TAIL (inner_then)->stmt;
if (inner_else && TREE_CODE (inner_else) == STATEMENT_LIST
&& STATEMENT_LIST_TAIL (inner_else))
inner_else = STATEMENT_LIST_TAIL (inner_else)->stmt;
if (IS_EMPTY_STMT (inner_then) && !inner_else)
warning (OPT_Wextra, "%Hempty body in an if-statement",
EXPR_LOCUS (inner_then));
if (inner_else && IS_EMPTY_STMT (inner_else))
warning (OPT_Wextra, "%Hempty body in an else-statement",
EXPR_LOCUS (inner_else));
}
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Nonzero if constant C has a value that is permissible
for type TYPE (an INTEGER_TYPE). */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
static int
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
constant_fits_type_p (tree c, tree type)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
if (TREE_CODE (c) == INTEGER_CST)
return int_fits_type_p (c, type);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
c = convert (type, c);
return !TREE_OVERFLOW (c);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
gcc: Add -flax-vector-conversions Obtained from: gcc 4.3 (rev. 120572, 120688; GPLv2)
2013-12-05 21:22:51 +00:00
/* True if vector types T1 and T2 can be converted to each other
without an explicit cast. If EMIT_LAX_NOTE is true, and T1 and T2
can only be converted with -flax-vector-conversions yet that is not
in effect, emit a note telling the user about that option if such
a note has not previously been emitted. */
bool
vector_types_convertible_p (tree t1, tree t2, bool emit_lax_note)
Resolve conflicts after GCC 3.4.6 20060825 import.
2006-08-26 21:37:21 +00:00
{
gcc: Add -flax-vector-conversions Obtained from: gcc 4.3 (rev. 120572, 120688; GPLv2)
2013-12-05 21:22:51 +00:00
static bool emitted_lax_note = false;
bool convertible_lax;
if ((targetm.vector_opaque_p (t1) || targetm.vector_opaque_p (t2))
&& tree_int_cst_equal (TYPE_SIZE (t1), TYPE_SIZE (t2)))
return true;
convertible_lax =
(tree_int_cst_equal (TYPE_SIZE (t1), TYPE_SIZE (t2))
&& (TREE_CODE (TREE_TYPE (t1)) != REAL_TYPE ||
TYPE_PRECISION (t1) == TYPE_PRECISION (t2))
&& (INTEGRAL_TYPE_P (TREE_TYPE (t1))
== INTEGRAL_TYPE_P (TREE_TYPE (t2))));
if (!convertible_lax || flag_lax_vector_conversions)
return convertible_lax;
if (TYPE_VECTOR_SUBPARTS (t1) == TYPE_VECTOR_SUBPARTS (t2)
&& comptypes (TREE_TYPE (t1), TREE_TYPE (t2)))
return true;
if (emit_lax_note && !emitted_lax_note)
{
emitted_lax_note = true;
inform ("use -flax-vector-conversions to permit "
"conversions between vectors with differing "
"element types or numbers of subparts");
}
return false;
Resolve conflicts after GCC 3.4.6 20060825 import.
2006-08-26 21:37:21 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Convert EXPR to TYPE, warning about conversion problems with constants.
Invoke this function on every expression that is converted implicitly,
i.e. because of language rules and not because of an explicit cast. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
convert_and_check (tree type, tree expr)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
tree t = convert (type, expr);
if (TREE_CODE (t) == INTEGER_CST)
{
if (TREE_OVERFLOW (t))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
TREE_OVERFLOW (t) = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Do not diagnose overflow in a constant expression merely
because a conversion overflowed. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
TREE_CONSTANT_OVERFLOW (t) = CONSTANT_CLASS_P (expr)
&& TREE_CONSTANT_OVERFLOW (expr);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* No warning for converting 0x80000000 to int. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!(TYPE_UNSIGNED (type) < TYPE_UNSIGNED (TREE_TYPE (expr))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
&& TREE_CODE (TREE_TYPE (expr)) == INTEGER_TYPE
&& TYPE_PRECISION (type) == TYPE_PRECISION (TREE_TYPE (expr))))
/* If EXPR fits in the unsigned version of TYPE,
don't warn unless pedantic. */
if ((pedantic
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
|| TYPE_UNSIGNED (type)
|| !constant_fits_type_p (expr,
c_common_unsigned_type (type)))
&& skip_evaluation == 0)
warning (OPT_Woverflow,
"overflow in implicit constant conversion");
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
else
unsigned_conversion_warning (t, expr);
}
return t;
}
/* A node in a list that describes references to variables (EXPR), which are
either read accesses if WRITER is zero, or write accesses, in which case
WRITER is the parent of EXPR. */
struct tlist
{
struct tlist *next;
tree expr, writer;
};
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Used to implement a cache the results of a call to verify_tree. We only
use this for SAVE_EXPRs. */
struct tlist_cache
{
struct tlist_cache *next;
struct tlist *cache_before_sp;
struct tlist *cache_after_sp;
tree expr;
};
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Obstack to use when allocating tlist structures, and corresponding
firstobj. */
static struct obstack tlist_obstack;
static char *tlist_firstobj = 0;
/* Keep track of the identifiers we've warned about, so we can avoid duplicate
warnings. */
static struct tlist *warned_ids;
/* SAVE_EXPRs need special treatment. We process them only once and then
cache the results. */
static struct tlist_cache *save_expr_cache;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static void add_tlist (struct tlist **, struct tlist *, tree, int);
static void merge_tlist (struct tlist **, struct tlist *, int);
static void verify_tree (tree, struct tlist **, struct tlist **, tree);
static int warning_candidate_p (tree);
static void warn_for_collisions (struct tlist *);
static void warn_for_collisions_1 (tree, tree, struct tlist *, int);
static struct tlist *new_tlist (struct tlist *, tree, tree);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Create a new struct tlist and fill in its fields. */
static struct tlist *
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
new_tlist (struct tlist *next, tree t, tree writer)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
struct tlist *l;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
l = XOBNEW (&tlist_obstack, struct tlist);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
l->next = next;
l->expr = t;
l->writer = writer;
return l;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Add duplicates of the nodes found in ADD to the list *TO. If EXCLUDE_WRITER
is nonnull, we ignore any node we find which has a writer equal to it. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
add_tlist (struct tlist **to, struct tlist *add, tree exclude_writer, int copy)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
while (add)
{
struct tlist *next = add->next;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!copy)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
add->next = *to;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!exclude_writer || add->writer != exclude_writer)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
*to = copy ? new_tlist (*to, add->expr, add->writer) : add;
add = next;
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Merge the nodes of ADD into TO. This merging process is done so that for
each variable that already exists in TO, no new node is added; however if
there is a write access recorded in ADD, and an occurrence on TO is only
a read access, then the occurrence in TO will be modified to record the
write. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
merge_tlist (struct tlist **to, struct tlist *add, int copy)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
struct tlist **end = to;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
while (*end)
end = &(*end)->next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
while (add)
{
int found = 0;
struct tlist *tmp2;
struct tlist *next = add->next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
for (tmp2 = *to; tmp2; tmp2 = tmp2->next)
if (tmp2->expr == add->expr)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
found = 1;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!tmp2->writer)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tmp2->writer = add->writer;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!found)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
*end = copy ? add : new_tlist (NULL, add->expr, add->writer);
end = &(*end)->next;
*end = 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
add = next;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
}
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* WRITTEN is a variable, WRITER is its parent. Warn if any of the variable
references in list LIST conflict with it, excluding reads if ONLY writers
is nonzero. */
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
warn_for_collisions_1 (tree written, tree writer, struct tlist *list,
int only_writes)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
struct tlist *tmp;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Avoid duplicate warnings. */
for (tmp = warned_ids; tmp; tmp = tmp->next)
if (tmp->expr == written)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
return;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
while (list)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (list->expr == written
&& list->writer != writer
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& (!only_writes || list->writer)
&& DECL_NAME (list->expr))
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
warned_ids = new_tlist (warned_ids, written, NULL_TREE);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (0, "operation on %qE may be undefined", list->expr);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
list = list->next;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Given a list LIST of references to variables, find whether any of these
can cause conflicts due to missing sequence points. */
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
warn_for_collisions (struct tlist *list)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
struct tlist *tmp;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
for (tmp = list; tmp; tmp = tmp->next)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (tmp->writer)
warn_for_collisions_1 (tmp->expr, tmp->writer, list, 0);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return nonzero if X is a tree that can be verified by the sequence point
warnings. */
static int
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
warning_candidate_p (tree x)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
return TREE_CODE (x) == VAR_DECL || TREE_CODE (x) == PARM_DECL;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Walk the tree X, and record accesses to variables. If X is written by the
parent tree, WRITER is the parent.
We store accesses in one of the two lists: PBEFORE_SP, and PNO_SP. If this
expression or its only operand forces a sequence point, then everything up
to the sequence point is stored in PBEFORE_SP. Everything else gets stored
in PNO_SP.
Once we return, we will have emitted warnings if any subexpression before
such a sequence point could be undefined. On a higher level, however, the
sequence point may not be relevant, and we'll merge the two lists.
Example: (b++, a) + b;
The call that processes the COMPOUND_EXPR will store the increment of B
in PBEFORE_SP, and the use of A in PNO_SP. The higher-level call that
processes the PLUS_EXPR will need to merge the two lists so that
eventually, all accesses end up on the same list (and we'll warn about the
unordered subexpressions b++ and b.
A note on merging. If we modify the former example so that our expression
becomes
(b++, b) + a
care must be taken not simply to add all three expressions into the final
PNO_SP list. The function merge_tlist takes care of that by merging the
before-SP list of the COMPOUND_EXPR into its after-SP list in a special
way, so that no more than one access to B is recorded. */
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
verify_tree (tree x, struct tlist **pbefore_sp, struct tlist **pno_sp,
tree writer)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
struct tlist *tmp_before, *tmp_nosp, *tmp_list2, *tmp_list3;
enum tree_code code;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
enum tree_code_class cl;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* X may be NULL if it is the operand of an empty statement expression
({ }). */
if (x == NULL)
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
restart:
code = TREE_CODE (x);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
cl = TREE_CODE_CLASS (code);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (warning_candidate_p (x))
{
*pno_sp = new_tlist (*pno_sp, x, writer);
return;
}
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
switch (code)
{
case CONSTRUCTOR:
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case COMPOUND_EXPR:
case TRUTH_ANDIF_EXPR:
case TRUTH_ORIF_EXPR:
tmp_before = tmp_nosp = tmp_list3 = 0;
verify_tree (TREE_OPERAND (x, 0), &tmp_before, &tmp_nosp, NULL_TREE);
warn_for_collisions (tmp_nosp);
merge_tlist (pbefore_sp, tmp_before, 0);
merge_tlist (pbefore_sp, tmp_nosp, 0);
verify_tree (TREE_OPERAND (x, 1), &tmp_list3, pno_sp, NULL_TREE);
merge_tlist (pbefore_sp, tmp_list3, 0);
return;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case COND_EXPR:
tmp_before = tmp_list2 = 0;
verify_tree (TREE_OPERAND (x, 0), &tmp_before, &tmp_list2, NULL_TREE);
warn_for_collisions (tmp_list2);
merge_tlist (pbefore_sp, tmp_before, 0);
merge_tlist (pbefore_sp, tmp_list2, 1);
tmp_list3 = tmp_nosp = 0;
verify_tree (TREE_OPERAND (x, 1), &tmp_list3, &tmp_nosp, NULL_TREE);
warn_for_collisions (tmp_nosp);
merge_tlist (pbefore_sp, tmp_list3, 0);
tmp_list3 = tmp_list2 = 0;
verify_tree (TREE_OPERAND (x, 2), &tmp_list3, &tmp_list2, NULL_TREE);
warn_for_collisions (tmp_list2);
merge_tlist (pbefore_sp, tmp_list3, 0);
/* Rather than add both tmp_nosp and tmp_list2, we have to merge the
two first, to avoid warning for (a ? b++ : b++). */
merge_tlist (&tmp_nosp, tmp_list2, 0);
add_tlist (pno_sp, tmp_nosp, NULL_TREE, 0);
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case PREDECREMENT_EXPR:
case PREINCREMENT_EXPR:
case POSTDECREMENT_EXPR:
case POSTINCREMENT_EXPR:
verify_tree (TREE_OPERAND (x, 0), pno_sp, pno_sp, x);
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case MODIFY_EXPR:
tmp_before = tmp_nosp = tmp_list3 = 0;
verify_tree (TREE_OPERAND (x, 1), &tmp_before, &tmp_nosp, NULL_TREE);
verify_tree (TREE_OPERAND (x, 0), &tmp_list3, &tmp_list3, x);
/* Expressions inside the LHS are not ordered wrt. the sequence points
in the RHS. Example:
*a = (a++, 2)
Despite the fact that the modification of "a" is in the before_sp
list (tmp_before), it conflicts with the use of "a" in the LHS.
We can handle this by adding the contents of tmp_list3
to those of tmp_before, and redoing the collision warnings for that
list. */
add_tlist (&tmp_before, tmp_list3, x, 1);
warn_for_collisions (tmp_before);
/* Exclude the LHS itself here; we first have to merge it into the
tmp_nosp list. This is done to avoid warning for "a = a"; if we
didn't exclude the LHS, we'd get it twice, once as a read and once
as a write. */
add_tlist (pno_sp, tmp_list3, x, 0);
warn_for_collisions_1 (TREE_OPERAND (x, 0), x, tmp_nosp, 1);
merge_tlist (pbefore_sp, tmp_before, 0);
if (warning_candidate_p (TREE_OPERAND (x, 0)))
merge_tlist (&tmp_nosp, new_tlist (NULL, TREE_OPERAND (x, 0), x), 0);
add_tlist (pno_sp, tmp_nosp, NULL_TREE, 1);
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case CALL_EXPR:
/* We need to warn about conflicts among arguments and conflicts between
args and the function address. Side effects of the function address,
however, are not ordered by the sequence point of the call. */
tmp_before = tmp_nosp = tmp_list2 = tmp_list3 = 0;
verify_tree (TREE_OPERAND (x, 0), &tmp_before, &tmp_nosp, NULL_TREE);
if (TREE_OPERAND (x, 1))
verify_tree (TREE_OPERAND (x, 1), &tmp_list2, &tmp_list3, NULL_TREE);
merge_tlist (&tmp_list3, tmp_list2, 0);
add_tlist (&tmp_before, tmp_list3, NULL_TREE, 0);
add_tlist (&tmp_before, tmp_nosp, NULL_TREE, 0);
warn_for_collisions (tmp_before);
add_tlist (pbefore_sp, tmp_before, NULL_TREE, 0);
return;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case TREE_LIST:
/* Scan all the list, e.g. indices of multi dimensional array. */
while (x)
{
tmp_before = tmp_nosp = 0;
verify_tree (TREE_VALUE (x), &tmp_before, &tmp_nosp, NULL_TREE);
merge_tlist (&tmp_nosp, tmp_before, 0);
add_tlist (pno_sp, tmp_nosp, NULL_TREE, 0);
x = TREE_CHAIN (x);
}
return;
case SAVE_EXPR:
{
struct tlist_cache *t;
for (t = save_expr_cache; t; t = t->next)
if (t->expr == x)
break;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!t)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
t = XOBNEW (&tlist_obstack, struct tlist_cache);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
t->next = save_expr_cache;
t->expr = x;
save_expr_cache = t;
tmp_before = tmp_nosp = 0;
verify_tree (TREE_OPERAND (x, 0), &tmp_before, &tmp_nosp, NULL_TREE);
warn_for_collisions (tmp_nosp);
tmp_list3 = 0;
while (tmp_nosp)
{
struct tlist *t = tmp_nosp;
tmp_nosp = t->next;
merge_tlist (&tmp_list3, t, 0);
}
t->cache_before_sp = tmp_before;
t->cache_after_sp = tmp_list3;
}
merge_tlist (pbefore_sp, t->cache_before_sp, 1);
add_tlist (pno_sp, t->cache_after_sp, NULL_TREE, 1);
return;
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
default:
/* For other expressions, simply recurse on their operands.
Manual tail recursion for unary expressions.
Other non-expressions need not be processed. */
if (cl == tcc_unary)
{
x = TREE_OPERAND (x, 0);
writer = 0;
goto restart;
}
else if (IS_EXPR_CODE_CLASS (cl))
{
int lp;
int max = TREE_CODE_LENGTH (TREE_CODE (x));
for (lp = 0; lp < max; lp++)
{
tmp_before = tmp_nosp = 0;
verify_tree (TREE_OPERAND (x, lp), &tmp_before, &tmp_nosp, 0);
merge_tlist (&tmp_nosp, tmp_before, 0);
add_tlist (pno_sp, tmp_nosp, NULL_TREE, 0);
}
}
return;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Try to warn for undefined behavior in EXPR due to missing sequence
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
points. */
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
verify_sequence_points (tree expr)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
struct tlist *before_sp = 0, *after_sp = 0;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
warned_ids = 0;
save_expr_cache = 0;
if (tlist_firstobj == 0)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
gcc_obstack_init (&tlist_obstack);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tlist_firstobj = (char *) obstack_alloc (&tlist_obstack, 0);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
verify_tree (expr, &before_sp, &after_sp, 0);
warn_for_collisions (after_sp);
obstack_free (&tlist_obstack, tlist_firstobj);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Validate the expression after `case' and apply default promotions. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
check_case_value (tree value)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (value == NULL_TREE)
return value;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* ??? Can we ever get nops here for a valid case value? We
shouldn't for C. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
STRIP_TYPE_NOPS (value);
/* In C++, the following is allowed:
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
const int i = 3;
switch (...) { case i: ... }
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
So, we try to reduce the VALUE to a constant that way. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (c_dialect_cxx ())
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
value = decl_constant_value (value);
STRIP_TYPE_NOPS (value);
value = fold (value);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (value) == INTEGER_CST)
/* Promote char or short to int. */
value = perform_integral_promotions (value);
else if (value != error_mark_node)
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
error ("case label does not reduce to an integer constant");
value = error_mark_node;
}
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
constant_expression_warning (value);
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return value;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* See if the case values LOW and HIGH are in the range of the original
type (i.e. before the default conversion to int) of the switch testing
expression.
TYPE is the promoted type of the testing expression, and ORIG_TYPE is
the type before promoting it. CASE_LOW_P is a pointer to the lower
bound of the case label, and CASE_HIGH_P is the upper bound or NULL
if the case is not a case range.
The caller has to make sure that we are not called with NULL for
CASE_LOW_P (i.e. the default case).
Returns true if the case label is in range of ORIG_TYPE (saturated or
untouched) or false if the label is out of range. */
static bool
check_case_bounds (tree type, tree orig_type,
tree *case_low_p, tree *case_high_p)
{
tree min_value, max_value;
tree case_low = *case_low_p;
tree case_high = case_high_p ? *case_high_p : case_low;
/* If there was a problem with the original type, do nothing. */
if (orig_type == error_mark_node)
return true;
min_value = TYPE_MIN_VALUE (orig_type);
max_value = TYPE_MAX_VALUE (orig_type);
/* Case label is less than minimum for type. */
if (tree_int_cst_compare (case_low, min_value) < 0
&& tree_int_cst_compare (case_high, min_value) < 0)
{
warning (0, "case label value is less than minimum value for type");
return false;
}
/* Case value is greater than maximum for type. */
if (tree_int_cst_compare (case_low, max_value) > 0
&& tree_int_cst_compare (case_high, max_value) > 0)
{
warning (0, "case label value exceeds maximum value for type");
return false;
}
/* Saturate lower case label value to minimum. */
if (tree_int_cst_compare (case_high, min_value) >= 0
&& tree_int_cst_compare (case_low, min_value) < 0)
{
warning (0, "lower value in case label range"
" less than minimum value for type");
case_low = min_value;
}
/* Saturate upper case label value to maximum. */
if (tree_int_cst_compare (case_low, max_value) <= 0
&& tree_int_cst_compare (case_high, max_value) > 0)
{
warning (0, "upper value in case label range"
" exceeds maximum value for type");
case_high = max_value;
}
if (*case_low_p != case_low)
*case_low_p = convert (type, case_low);
if (case_high_p && *case_high_p != case_high)
*case_high_p = convert (type, case_high);
return true;
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return an integer type with BITS bits of precision,
that is unsigned if UNSIGNEDP is nonzero, otherwise signed. */
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_common_type_for_size (unsigned int bits, int unsignedp)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
if (bits == TYPE_PRECISION (integer_type_node))
return unsignedp ? unsigned_type_node : integer_type_node;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits == TYPE_PRECISION (signed_char_type_node))
return unsignedp ? unsigned_char_type_node : signed_char_type_node;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits == TYPE_PRECISION (short_integer_type_node))
return unsignedp ? short_unsigned_type_node : short_integer_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits == TYPE_PRECISION (long_integer_type_node))
return unsignedp ? long_unsigned_type_node : long_integer_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits == TYPE_PRECISION (long_long_integer_type_node))
return (unsignedp ? long_long_unsigned_type_node
: long_long_integer_type_node);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits == TYPE_PRECISION (widest_integer_literal_type_node))
return (unsignedp ? widest_unsigned_literal_type_node
: widest_integer_literal_type_node);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits <= TYPE_PRECISION (intQI_type_node))
return unsignedp ? unsigned_intQI_type_node : intQI_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits <= TYPE_PRECISION (intHI_type_node))
return unsignedp ? unsigned_intHI_type_node : intHI_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits <= TYPE_PRECISION (intSI_type_node))
return unsignedp ? unsigned_intSI_type_node : intSI_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (bits <= TYPE_PRECISION (intDI_type_node))
return unsignedp ? unsigned_intDI_type_node : intDI_type_node;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return 0;
}
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Used for communication between c_common_type_for_mode and
c_register_builtin_type. */
static GTY(()) tree registered_builtin_types;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return a data type that has machine mode MODE.
If the mode is an integer,
then UNSIGNEDP selects between signed and unsigned types. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_common_type_for_mode (enum machine_mode mode, int unsignedp)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
tree t;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (integer_type_node))
return unsignedp ? unsigned_type_node : integer_type_node;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (signed_char_type_node))
return unsignedp ? unsigned_char_type_node : signed_char_type_node;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (short_integer_type_node))
return unsignedp ? short_unsigned_type_node : short_integer_type_node;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (long_integer_type_node))
return unsignedp ? long_unsigned_type_node : long_integer_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (long_long_integer_type_node))
return unsignedp ? long_long_unsigned_type_node : long_long_integer_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (widest_integer_literal_type_node))
return unsignedp ? widest_unsigned_literal_type_node
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
: widest_integer_literal_type_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == QImode)
return unsignedp ? unsigned_intQI_type_node : intQI_type_node;
if (mode == HImode)
return unsignedp ? unsigned_intHI_type_node : intHI_type_node;
if (mode == SImode)
return unsignedp ? unsigned_intSI_type_node : intSI_type_node;
if (mode == DImode)
return unsignedp ? unsigned_intDI_type_node : intDI_type_node;
#if HOST_BITS_PER_WIDE_INT >= 64
if (mode == TYPE_MODE (intTI_type_node))
return unsignedp ? unsigned_intTI_type_node : intTI_type_node;
#endif
if (mode == TYPE_MODE (float_type_node))
return float_type_node;
if (mode == TYPE_MODE (double_type_node))
return double_type_node;
if (mode == TYPE_MODE (long_double_type_node))
return long_double_type_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (mode == TYPE_MODE (void_type_node))
return void_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (build_pointer_type (char_type_node)))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return (unsignedp
? make_unsigned_type (GET_MODE_PRECISION (mode))
: make_signed_type (GET_MODE_PRECISION (mode)));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (mode == TYPE_MODE (build_pointer_type (integer_type_node)))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return (unsignedp
? make_unsigned_type (GET_MODE_PRECISION (mode))
: make_signed_type (GET_MODE_PRECISION (mode)));
if (COMPLEX_MODE_P (mode))
{
enum machine_mode inner_mode;
tree inner_type;
if (mode == TYPE_MODE (complex_float_type_node))
return complex_float_type_node;
if (mode == TYPE_MODE (complex_double_type_node))
return complex_double_type_node;
if (mode == TYPE_MODE (complex_long_double_type_node))
return complex_long_double_type_node;
if (mode == TYPE_MODE (complex_integer_type_node) && !unsignedp)
return complex_integer_type_node;
inner_mode = GET_MODE_INNER (mode);
inner_type = c_common_type_for_mode (inner_mode, unsignedp);
if (inner_type != NULL_TREE)
return build_complex_type (inner_type);
}
else if (VECTOR_MODE_P (mode))
{
enum machine_mode inner_mode = GET_MODE_INNER (mode);
tree inner_type = c_common_type_for_mode (inner_mode, unsignedp);
if (inner_type != NULL_TREE)
return build_vector_type_for_mode (inner_type, mode);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (mode == TYPE_MODE (dfloat32_type_node))
return dfloat32_type_node;
if (mode == TYPE_MODE (dfloat64_type_node))
return dfloat64_type_node;
if (mode == TYPE_MODE (dfloat128_type_node))
return dfloat128_type_node;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
for (t = registered_builtin_types; t; t = TREE_CHAIN (t))
if (TYPE_MODE (TREE_VALUE (t)) == mode)
return TREE_VALUE (t);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return 0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return an unsigned type the same as TYPE in other respects. */
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_common_unsigned_type (tree type)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree type1 = TYPE_MAIN_VARIANT (type);
if (type1 == signed_char_type_node || type1 == char_type_node)
return unsigned_char_type_node;
if (type1 == integer_type_node)
return unsigned_type_node;
if (type1 == short_integer_type_node)
return short_unsigned_type_node;
if (type1 == long_integer_type_node)
return long_unsigned_type_node;
if (type1 == long_long_integer_type_node)
return long_long_unsigned_type_node;
if (type1 == widest_integer_literal_type_node)
return widest_unsigned_literal_type_node;
#if HOST_BITS_PER_WIDE_INT >= 64
if (type1 == intTI_type_node)
return unsigned_intTI_type_node;
#endif
if (type1 == intDI_type_node)
return unsigned_intDI_type_node;
if (type1 == intSI_type_node)
return unsigned_intSI_type_node;
if (type1 == intHI_type_node)
return unsigned_intHI_type_node;
if (type1 == intQI_type_node)
return unsigned_intQI_type_node;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return c_common_signed_or_unsigned_type (1, type);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return a signed type the same as TYPE in other respects. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_common_signed_type (tree type)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree type1 = TYPE_MAIN_VARIANT (type);
if (type1 == unsigned_char_type_node || type1 == char_type_node)
return signed_char_type_node;
if (type1 == unsigned_type_node)
return integer_type_node;
if (type1 == short_unsigned_type_node)
return short_integer_type_node;
if (type1 == long_unsigned_type_node)
return long_integer_type_node;
if (type1 == long_long_unsigned_type_node)
return long_long_integer_type_node;
if (type1 == widest_unsigned_literal_type_node)
return widest_integer_literal_type_node;
#if HOST_BITS_PER_WIDE_INT >= 64
if (type1 == unsigned_intTI_type_node)
return intTI_type_node;
#endif
if (type1 == unsigned_intDI_type_node)
return intDI_type_node;
if (type1 == unsigned_intSI_type_node)
return intSI_type_node;
if (type1 == unsigned_intHI_type_node)
return intHI_type_node;
if (type1 == unsigned_intQI_type_node)
return intQI_type_node;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return c_common_signed_or_unsigned_type (0, type);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return a type the same as TYPE except unsigned or
signed according to UNSIGNEDP. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_common_signed_or_unsigned_type (int unsignedp, tree type)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!INTEGRAL_TYPE_P (type)
|| TYPE_UNSIGNED (type) == unsignedp)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return type;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* For ENUMERAL_TYPEs in C++, must check the mode of the types, not
the precision; they have precision set to match their range, but
may use a wider mode to match an ABI. If we change modes, we may
wind up with bad conversions. For INTEGER_TYPEs in C, must check
the precision as well, so as to yield correct results for
bit-field types. C++ does not have these separate bit-field
types, and producing a signed or unsigned variant of an
ENUMERAL_TYPE may cause other problems as well. */
#define TYPE_OK(node) \
(TYPE_MODE (type) == TYPE_MODE (node) \
&& (c_dialect_cxx () || TYPE_PRECISION (type) == TYPE_PRECISION (node)))
if (TYPE_OK (signed_char_type_node))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return unsignedp ? unsigned_char_type_node : signed_char_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (integer_type_node))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return unsignedp ? unsigned_type_node : integer_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (short_integer_type_node))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return unsignedp ? short_unsigned_type_node : short_integer_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (long_integer_type_node))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return unsignedp ? long_unsigned_type_node : long_integer_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (long_long_integer_type_node))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return (unsignedp ? long_long_unsigned_type_node
: long_long_integer_type_node);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (widest_integer_literal_type_node))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return (unsignedp ? widest_unsigned_literal_type_node
: widest_integer_literal_type_node);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
#if HOST_BITS_PER_WIDE_INT >= 64
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (intTI_type_node))
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
return unsignedp ? unsigned_intTI_type_node : intTI_type_node;
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
#endif
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (intDI_type_node))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return unsignedp ? unsigned_intDI_type_node : intDI_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (intSI_type_node))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return unsignedp ? unsigned_intSI_type_node : intSI_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (intHI_type_node))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return unsignedp ? unsigned_intHI_type_node : intHI_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_OK (intQI_type_node))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return unsignedp ? unsigned_intQI_type_node : intQI_type_node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#undef TYPE_OK
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (c_dialect_cxx ())
return type;
else
return build_nonstandard_integer_type (TYPE_PRECISION (type), unsignedp);
}
/* Build a bit-field integer type for the given WIDTH and UNSIGNEDP. */
tree
c_build_bitfield_integer_type (unsigned HOST_WIDE_INT width, int unsignedp)
{
/* Extended integer types of the same width as a standard type have
lesser rank, so those of the same width as int promote to int or
unsigned int and are valid for printf formats expecting int or
unsigned int. To avoid such special cases, avoid creating
extended integer types for bit-fields if a standard integer type
is available. */
if (width == TYPE_PRECISION (integer_type_node))
return unsignedp ? unsigned_type_node : integer_type_node;
if (width == TYPE_PRECISION (signed_char_type_node))
return unsignedp ? unsigned_char_type_node : signed_char_type_node;
if (width == TYPE_PRECISION (short_integer_type_node))
return unsignedp ? short_unsigned_type_node : short_integer_type_node;
if (width == TYPE_PRECISION (long_integer_type_node))
return unsignedp ? long_unsigned_type_node : long_integer_type_node;
if (width == TYPE_PRECISION (long_long_integer_type_node))
return (unsignedp ? long_long_unsigned_type_node
: long_long_integer_type_node);
return build_nonstandard_integer_type (width, unsignedp);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* The C version of the register_builtin_type langhook. */
void
c_register_builtin_type (tree type, const char* name)
{
tree decl;
decl = build_decl (TYPE_DECL, get_identifier (name), type);
DECL_ARTIFICIAL (decl) = 1;
if (!TYPE_NAME (type))
TYPE_NAME (type) = decl;
pushdecl (decl);
registered_builtin_types = tree_cons (0, type, registered_builtin_types);
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Return the minimum number of bits needed to represent VALUE in a
signed or unsigned type, UNSIGNEDP says which. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
unsigned int
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
min_precision (tree value, int unsignedp)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
int log;
/* If the value is negative, compute its negative minus 1. The latter
adjustment is because the absolute value of the largest negative value
is one larger than the largest positive value. This is equivalent to
a bit-wise negation, so use that operation instead. */
if (tree_int_cst_sgn (value) < 0)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
value = fold_build1 (BIT_NOT_EXPR, TREE_TYPE (value), value);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Return the number of bits needed, taking into account the fact
that we need one more bit for a signed than unsigned type. */
if (integer_zerop (value))
log = 0;
else
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
log = tree_floor_log2 (value);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return log + 1 + !unsignedp;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Print an error message for invalid operands to arith operation
gcc: Include types in error message for build_binary_op. Mostly cosmetic change, again to reduce differences with Apple's gcc. Obtained from: gcc 4.3 (rev. 125239; GPLv2) MFC after: 3 weeks
2013-12-06 02:19:58 +00:00
CODE with TYPE0 for operand 0, and TYPE1 for operand 1. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
void
gcc: Include types in error message for build_binary_op. Mostly cosmetic change, again to reduce differences with Apple's gcc. Obtained from: gcc 4.3 (rev. 125239; GPLv2) MFC after: 3 weeks
2013-12-06 02:19:58 +00:00
binary_op_error (enum tree_code code, tree type0, tree type1)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
const char *opname;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
switch (code)
{
case PLUS_EXPR:
opname = "+"; break;
case MINUS_EXPR:
opname = "-"; break;
case MULT_EXPR:
opname = "*"; break;
case MAX_EXPR:
opname = "max"; break;
case MIN_EXPR:
opname = "min"; break;
case EQ_EXPR:
opname = "=="; break;
case NE_EXPR:
opname = "!="; break;
case LE_EXPR:
opname = "<="; break;
case GE_EXPR:
opname = ">="; break;
case LT_EXPR:
opname = "<"; break;
case GT_EXPR:
opname = ">"; break;
case LSHIFT_EXPR:
opname = "<<"; break;
case RSHIFT_EXPR:
opname = ">>"; break;
case TRUNC_MOD_EXPR:
case FLOOR_MOD_EXPR:
opname = "%"; break;
case TRUNC_DIV_EXPR:
case FLOOR_DIV_EXPR:
opname = "/"; break;
case BIT_AND_EXPR:
opname = "&"; break;
case BIT_IOR_EXPR:
opname = "|"; break;
case TRUTH_ANDIF_EXPR:
opname = "&&"; break;
case TRUTH_ORIF_EXPR:
opname = "||"; break;
case BIT_XOR_EXPR:
opname = "^"; break;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
default:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc_unreachable ();
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
gcc: Include types in error message for build_binary_op. Mostly cosmetic change, again to reduce differences with Apple's gcc. Obtained from: gcc 4.3 (rev. 125239; GPLv2) MFC after: 3 weeks
2013-12-06 02:19:58 +00:00
error ("invalid operands to binary %s (have %qT and %qT)", opname,
type0, type1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* Subroutine of build_binary_op, used for comparison operations.
See if the operands have both been converted from subword integer types
and, if so, perhaps change them both back to their original type.
This function is also responsible for converting the two operands
to the proper common type for comparison.
The arguments of this function are all pointers to local variables
of build_binary_op: OP0_PTR is &OP0, OP1_PTR is &OP1,
RESTYPE_PTR is &RESULT_TYPE and RESCODE_PTR is &RESULTCODE.
If this function returns nonzero, it means that the comparison has
a constant value. What this function returns is an expression for
that value. */
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
shorten_compare (tree *op0_ptr, tree *op1_ptr, tree *restype_ptr,
enum tree_code *rescode_ptr)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree type;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree op0 = *op0_ptr;
tree op1 = *op1_ptr;
int unsignedp0, unsignedp1;
int real1, real2;
tree primop0, primop1;
enum tree_code code = *rescode_ptr;
/* Throw away any conversions to wider types
already present in the operands. */
primop0 = get_narrower (op0, &unsignedp0);
primop1 = get_narrower (op1, &unsignedp1);
/* Handle the case that OP0 does not *contain* a conversion
but it *requires* conversion to FINAL_TYPE. */
if (op0 == primop0 && TREE_TYPE (op0) != *restype_ptr)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
unsignedp0 = TYPE_UNSIGNED (TREE_TYPE (op0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (op1 == primop1 && TREE_TYPE (op1) != *restype_ptr)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
unsignedp1 = TYPE_UNSIGNED (TREE_TYPE (op1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* If one of the operands must be floated, we cannot optimize. */
real1 = TREE_CODE (TREE_TYPE (primop0)) == REAL_TYPE;
real2 = TREE_CODE (TREE_TYPE (primop1)) == REAL_TYPE;
/* If first arg is constant, swap the args (changing operation
so value is preserved), for canonicalization. Don't do this if
the second arg is 0. */
if (TREE_CONSTANT (primop0)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& !integer_zerop (primop1) && !real_zerop (primop1))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree tem = primop0;
int temi = unsignedp0;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
primop0 = primop1;
primop1 = tem;
tem = op0;
op0 = op1;
op1 = tem;
*op0_ptr = op0;
*op1_ptr = op1;
unsignedp0 = unsignedp1;
unsignedp1 = temi;
temi = real1;
real1 = real2;
real2 = temi;
switch (code)
{
case LT_EXPR:
code = GT_EXPR;
break;
case GT_EXPR:
code = LT_EXPR;
break;
case LE_EXPR:
code = GE_EXPR;
break;
case GE_EXPR:
code = LE_EXPR;
break;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
*rescode_ptr = code;
}
/* If comparing an integer against a constant more bits wide,
maybe we can deduce a value of 1 or 0 independent of the data.
Or else truncate the constant now
rather than extend the variable at run time.
This is only interesting if the constant is the wider arg.
Also, it is not safe if the constant is unsigned and the
variable arg is signed, since in this case the variable
would be sign-extended and then regarded as unsigned.
Our technique fails in this case because the lowest/highest
possible unsigned results don't follow naturally from the
lowest/highest possible values of the variable operand.
For just EQ_EXPR and NE_EXPR there is another technique that
could be used: see if the constant can be faithfully represented
in the other operand's type, by truncating it and reextending it
and see if that preserves the constant's value. */
if (!real1 && !real2
&& TREE_CODE (primop1) == INTEGER_CST
&& TYPE_PRECISION (TREE_TYPE (primop0)) < TYPE_PRECISION (*restype_ptr))
{
int min_gt, max_gt, min_lt, max_lt;
tree maxval, minval;
/* 1 if comparison is nominally unsigned. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int unsignedp = TYPE_UNSIGNED (*restype_ptr);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
tree val;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
type = c_common_signed_or_unsigned_type (unsignedp0,
TREE_TYPE (primop0));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
maxval = TYPE_MAX_VALUE (type);
minval = TYPE_MIN_VALUE (type);
if (unsignedp && !unsignedp0)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*restype_ptr = c_common_signed_type (*restype_ptr);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (TREE_TYPE (primop1) != *restype_ptr)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{
/* Convert primop1 to target type, but do not introduce
additional overflow. We know primop1 is an int_cst. */
tree tmp = build_int_cst_wide (*restype_ptr,
TREE_INT_CST_LOW (primop1),
TREE_INT_CST_HIGH (primop1));
primop1 = force_fit_type (tmp, 0, TREE_OVERFLOW (primop1),
TREE_CONSTANT_OVERFLOW (primop1));
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (type != *restype_ptr)
{
minval = convert (*restype_ptr, minval);
maxval = convert (*restype_ptr, maxval);
}
if (unsignedp && unsignedp0)
{
min_gt = INT_CST_LT_UNSIGNED (primop1, minval);
max_gt = INT_CST_LT_UNSIGNED (primop1, maxval);
min_lt = INT_CST_LT_UNSIGNED (minval, primop1);
max_lt = INT_CST_LT_UNSIGNED (maxval, primop1);
}
else
{
min_gt = INT_CST_LT (primop1, minval);
max_gt = INT_CST_LT (primop1, maxval);
min_lt = INT_CST_LT (minval, primop1);
max_lt = INT_CST_LT (maxval, primop1);
}
val = 0;
/* This used to be a switch, but Genix compiler can't handle that. */
if (code == NE_EXPR)
{
if (max_lt || min_gt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_true_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (code == EQ_EXPR)
{
if (max_lt || min_gt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_false_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (code == LT_EXPR)
{
if (max_lt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_true_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (!min_lt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_false_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (code == GT_EXPR)
{
if (min_gt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_true_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (!max_gt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_false_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (code == LE_EXPR)
{
if (!max_gt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_true_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (min_gt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_false_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else if (code == GE_EXPR)
{
if (!min_lt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_true_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
if (max_lt)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
val = truthvalue_false_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
/* If primop0 was sign-extended and unsigned comparison specd,
we did a signed comparison above using the signed type bounds.
But the comparison we output must be unsigned.
Also, for inequalities, VAL is no good; but if the signed
comparison had *any* fixed result, it follows that the
unsigned comparison just tests the sign in reverse
(positive values are LE, negative ones GE).
So we can generate an unsigned comparison
against an extreme value of the signed type. */
if (unsignedp && !unsignedp0)
{
if (val != 0)
switch (code)
{
case LT_EXPR:
case GE_EXPR:
primop1 = TYPE_MIN_VALUE (type);
val = 0;
break;
case LE_EXPR:
case GT_EXPR:
primop1 = TYPE_MAX_VALUE (type);
val = 0;
break;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
default:
break;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
type = c_common_unsigned_type (type);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (TREE_CODE (primop0) != INTEGER_CST)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (val == truthvalue_false_node)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (0, "comparison is always false due to limited range of data type");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (val == truthvalue_true_node)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (0, "comparison is always true due to limited range of data type");
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
if (val != 0)
{
/* Don't forget to evaluate PRIMOP0 if it has side effects. */
if (TREE_SIDE_EFFECTS (primop0))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return build2 (COMPOUND_EXPR, TREE_TYPE (val), primop0, val);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
return val;
}
/* Value is not predetermined, but do the comparison
in the type of the operand that is not constant.
TYPE is already properly set. */
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* If either arg is decimal float and the other is float, find the
proper common type to use for comparison. */
else if (real1 && real2
&& (DECIMAL_FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (primop0)))
|| DECIMAL_FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (primop1)))))
type = common_type (TREE_TYPE (primop0), TREE_TYPE (primop1));
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
else if (real1 && real2
&& (TYPE_PRECISION (TREE_TYPE (primop0))
== TYPE_PRECISION (TREE_TYPE (primop1))))
type = TREE_TYPE (primop0);
/* If args' natural types are both narrower than nominal type
and both extend in the same manner, compare them
in the type of the wider arg.
Otherwise must actually extend both to the nominal
common type lest different ways of extending
alter the result.
(eg, (short)-1 == (unsigned short)-1 should be 0.) */
else if (unsignedp0 == unsignedp1 && real1 == real2
&& TYPE_PRECISION (TREE_TYPE (primop0)) < TYPE_PRECISION (*restype_ptr)
&& TYPE_PRECISION (TREE_TYPE (primop1)) < TYPE_PRECISION (*restype_ptr))
{
type = common_type (TREE_TYPE (primop0), TREE_TYPE (primop1));
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
type = c_common_signed_or_unsigned_type (unsignedp0
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
|| TYPE_UNSIGNED (*restype_ptr),
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
type);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
/* Make sure shorter operand is extended the right way
to match the longer operand. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
primop0
= convert (c_common_signed_or_unsigned_type (unsignedp0,
TREE_TYPE (primop0)),
primop0);
primop1
= convert (c_common_signed_or_unsigned_type (unsignedp1,
TREE_TYPE (primop1)),
primop1);
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
else
{
/* Here we must do the comparison on the nominal type
using the args exactly as we received them. */
type = *restype_ptr;
primop0 = op0;
primop1 = op1;
if (!real1 && !real2 && integer_zerop (primop1)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& TYPE_UNSIGNED (*restype_ptr))
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
tree value = 0;
switch (code)
{
case GE_EXPR:
/* All unsigned values are >= 0, so we warn if extra warnings
are requested. However, if OP0 is a constant that is
>= 0, the signedness of the comparison isn't an issue,
so suppress the warning. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (extra_warnings && !in_system_header
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& !(TREE_CODE (primop0) == INTEGER_CST
&& !TREE_OVERFLOW (convert (c_common_signed_type (type),
primop0))))
warning (0, "comparison of unsigned expression >= 0 is always true");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
value = truthvalue_true_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
break;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case LT_EXPR:
if (extra_warnings && !in_system_header
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& !(TREE_CODE (primop0) == INTEGER_CST
&& !TREE_OVERFLOW (convert (c_common_signed_type (type),
primop0))))
warning (0, "comparison of unsigned expression < 0 is always false");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
value = truthvalue_false_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
break;
default:
break;
}
if (value != 0)
{
/* Don't forget to evaluate PRIMOP0 if it has side effects. */
if (TREE_SIDE_EFFECTS (primop0))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return build2 (COMPOUND_EXPR, TREE_TYPE (value),
primop0, value);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return value;
}
}
}
*op0_ptr = convert (type, primop0);
*op1_ptr = convert (type, primop1);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
*restype_ptr = truthvalue_type_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return 0;
}
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
/* Return a tree for the sum or difference (RESULTCODE says which)
of pointer PTROP and integer INTOP. */
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
pointer_int_sum (enum tree_code resultcode, tree ptrop, tree intop)
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree size_exp, ret;
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
/* The result is a pointer of the same type that is being added. */
tree result_type = TREE_TYPE (ptrop);
if (TREE_CODE (TREE_TYPE (result_type)) == VOID_TYPE)
{
if (pedantic || warn_pointer_arith)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
pedwarn ("pointer of type %<void *%> used in arithmetic");
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
size_exp = integer_one_node;
}
else if (TREE_CODE (TREE_TYPE (result_type)) == FUNCTION_TYPE)
{
if (pedantic || warn_pointer_arith)
pedwarn ("pointer to a function used in arithmetic");
size_exp = integer_one_node;
}
else if (TREE_CODE (TREE_TYPE (result_type)) == METHOD_TYPE)
{
if (pedantic || warn_pointer_arith)
pedwarn ("pointer to member function used in arithmetic");
size_exp = integer_one_node;
}
else
size_exp = size_in_bytes (TREE_TYPE (result_type));
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* We are manipulating pointer values, so we don't need to warn
about relying on undefined signed overflow. We disable the
warning here because we use integer types so fold won't know that
they are really pointers. */
fold_defer_overflow_warnings ();
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
/* If what we are about to multiply by the size of the elements
contains a constant term, apply distributive law
and multiply that constant term separately.
This helps produce common subexpressions. */
if ((TREE_CODE (intop) == PLUS_EXPR || TREE_CODE (intop) == MINUS_EXPR)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& !TREE_CONSTANT (intop)
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
&& TREE_CONSTANT (TREE_OPERAND (intop, 1))
&& TREE_CONSTANT (size_exp)
/* If the constant comes from pointer subtraction,
skip this optimization--it would cause an error. */
&& TREE_CODE (TREE_TYPE (TREE_OPERAND (intop, 0))) == INTEGER_TYPE
/* If the constant is unsigned, and smaller than the pointer size,
then we must skip this optimization. This is because it could cause
an overflow error if the constant is negative but INTOP is not. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& (!TYPE_UNSIGNED (TREE_TYPE (intop))
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
|| (TYPE_PRECISION (TREE_TYPE (intop))
== TYPE_PRECISION (TREE_TYPE (ptrop)))))
{
enum tree_code subcode = resultcode;
tree int_type = TREE_TYPE (intop);
if (TREE_CODE (intop) == MINUS_EXPR)
subcode = (subcode == PLUS_EXPR ? MINUS_EXPR : PLUS_EXPR);
/* Convert both subexpression types to the type of intop,
because weird cases involving pointer arithmetic
can result in a sum or difference with different type args. */
ptrop = build_binary_op (subcode, ptrop,
convert (int_type, TREE_OPERAND (intop, 1)), 1);
intop = convert (int_type, TREE_OPERAND (intop, 0));
}
/* Convert the integer argument to a type the same size as sizetype
so the multiply won't overflow spuriously. */
if (TYPE_PRECISION (TREE_TYPE (intop)) != TYPE_PRECISION (sizetype)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
|| TYPE_UNSIGNED (TREE_TYPE (intop)) != TYPE_UNSIGNED (sizetype))
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
intop = convert (c_common_type_for_size (TYPE_PRECISION (sizetype),
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
TYPE_UNSIGNED (sizetype)), intop);
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
/* Replace the integer argument with a suitable product by the object size.
Do this multiplication as signed, then convert to the appropriate
pointer type (actually unsigned integral). */
intop = convert (result_type,
build_binary_op (MULT_EXPR, intop,
convert (TREE_TYPE (intop), size_exp), 1));
/* Create the sum or difference. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
ret = fold_build2 (resultcode, result_type, ptrop, intop);
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
fold_undefer_and_ignore_overflow_warnings ();
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return ret;
Use the stock 3.1-prerelease file.
2002-05-09 21:11:21 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Prepare expr to be an argument of a TRUTH_NOT_EXPR,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
or for an `if' or `while' statement or ?..: exp. It should already
have been validated to be of suitable type; otherwise, a bad
diagnostic may result.
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
This preparation consists of taking the ordinary
representation of an expression expr and producing a valid tree
boolean expression describing whether expr is nonzero. We could
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
simply always do build_binary_op (NE_EXPR, expr, truthvalue_false_node, 1),
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
but we optimize comparisons, &&, ||, and !.
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
The resulting type should always be `truthvalue_type_node'. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_common_truthvalue_conversion (tree expr)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
switch (TREE_CODE (expr))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
case EQ_EXPR: case NE_EXPR: case UNEQ_EXPR: case LTGT_EXPR:
case LE_EXPR: case GE_EXPR: case LT_EXPR: case GT_EXPR:
case UNLE_EXPR: case UNGE_EXPR: case UNLT_EXPR: case UNGT_EXPR:
case ORDERED_EXPR: case UNORDERED_EXPR:
if (TREE_TYPE (expr) == truthvalue_type_node)
return expr;
return build2 (TREE_CODE (expr), truthvalue_type_node,
TREE_OPERAND (expr, 0), TREE_OPERAND (expr, 1));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case TRUTH_ANDIF_EXPR:
case TRUTH_ORIF_EXPR:
case TRUTH_AND_EXPR:
case TRUTH_OR_EXPR:
case TRUTH_XOR_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_TYPE (expr) == truthvalue_type_node)
return expr;
return build2 (TREE_CODE (expr), truthvalue_type_node,
c_common_truthvalue_conversion (TREE_OPERAND (expr, 0)),
c_common_truthvalue_conversion (TREE_OPERAND (expr, 1)));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case TRUTH_NOT_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_TYPE (expr) == truthvalue_type_node)
return expr;
return build1 (TREE_CODE (expr), truthvalue_type_node,
c_common_truthvalue_conversion (TREE_OPERAND (expr, 0)));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case ERROR_MARK:
return expr;
case INTEGER_CST:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Avoid integer_zerop to ignore TREE_CONSTANT_OVERFLOW. */
return (TREE_INT_CST_LOW (expr) != 0 || TREE_INT_CST_HIGH (expr) != 0)
? truthvalue_true_node
: truthvalue_false_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case REAL_CST:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return real_compare (NE_EXPR, &TREE_REAL_CST (expr), &dconst0)
? truthvalue_true_node
: truthvalue_false_node;
case FUNCTION_DECL:
expr = build_unary_op (ADDR_EXPR, expr, 0);
/* Fall through. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case ADDR_EXPR:
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree inner = TREE_OPERAND (expr, 0);
if (DECL_P (inner)
&& (TREE_CODE (inner) == PARM_DECL
|| TREE_CODE (inner) == LABEL_DECL
|| !DECL_WEAK (inner)))
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Common Ada/Pascal programmer's mistake. We always warn
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
about this since it is so bad. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Waddress,
"the address of %qD will always evaluate as %<true%>",
inner);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
return truthvalue_true_node;
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* If we are taking the address of an external decl, it might be
zero if it is weak, so we cannot optimize. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (DECL_P (inner)
&& DECL_EXTERNAL (inner))
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
break;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_SIDE_EFFECTS (inner))
return build2 (COMPOUND_EXPR, truthvalue_type_node,
inner, truthvalue_true_node);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
else
return truthvalue_true_node;
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case COMPLEX_EXPR:
return build_binary_op ((TREE_SIDE_EFFECTS (TREE_OPERAND (expr, 1))
? TRUTH_OR_EXPR : TRUTH_ORIF_EXPR),
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
c_common_truthvalue_conversion (TREE_OPERAND (expr, 0)),
c_common_truthvalue_conversion (TREE_OPERAND (expr, 1)),
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
0);
case NEGATE_EXPR:
case ABS_EXPR:
case FLOAT_EXPR:
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* These don't change whether an object is nonzero or zero. */
return c_common_truthvalue_conversion (TREE_OPERAND (expr, 0));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case LROTATE_EXPR:
case RROTATE_EXPR:
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* These don't change whether an object is zero or nonzero, but
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
we can't ignore them if their second arg has side-effects. */
if (TREE_SIDE_EFFECTS (TREE_OPERAND (expr, 1)))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return build2 (COMPOUND_EXPR, truthvalue_type_node,
TREE_OPERAND (expr, 1),
c_common_truthvalue_conversion (TREE_OPERAND (expr, 0)));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
else
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return c_common_truthvalue_conversion (TREE_OPERAND (expr, 0));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case COND_EXPR:
/* Distribute the conversion into the arms of a COND_EXPR. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return fold_build3 (COND_EXPR, truthvalue_type_node,
TREE_OPERAND (expr, 0),
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
c_common_truthvalue_conversion (TREE_OPERAND (expr, 1)),
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
c_common_truthvalue_conversion (TREE_OPERAND (expr, 2)));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case CONVERT_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
case NOP_EXPR:
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Don't cancel the effect of a CONVERT_EXPR from a REFERENCE_TYPE,
since that affects how `default_conversion' will behave. */
if (TREE_CODE (TREE_TYPE (expr)) == REFERENCE_TYPE
|| TREE_CODE (TREE_TYPE (TREE_OPERAND (expr, 0))) == REFERENCE_TYPE)
break;
/* If this is widening the argument, we can ignore it. */
if (TYPE_PRECISION (TREE_TYPE (expr))
>= TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (expr, 0))))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return c_common_truthvalue_conversion (TREE_OPERAND (expr, 0));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
break;
case MODIFY_EXPR:
gcc: Backport fixes for -W parentheses in C++ This fixes GCC 19564: http://gcc.gnu.org/ml/gcc-patches/2006-12/msg00868.html http://gcc.gnu.org/ml/gcc-patches/2006-12/msg01772.html http://gcc.gnu.org/ml/gcc-patches/2007-01/msg00545.html The patch and its fixes are used by Google in their enhanced gcc-4.2.1 port and predates the license switch in GCC so they are still under GPLv2. MFC after: 3 weeks
2013-11-13 04:31:27 +00:00
if (!TREE_NO_WARNING (expr)
&& warn_parentheses)
{
warning (OPT_Wparentheses,
"suggest parentheses around assignment used as truth value");
TREE_NO_WARNING (expr) = 1;
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
break;
default:
break;
}
if (TREE_CODE (TREE_TYPE (expr)) == COMPLEX_TYPE)
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
tree t = save_expr (expr);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return (build_binary_op
((TREE_SIDE_EFFECTS (expr)
? TRUTH_OR_EXPR : TRUTH_ORIF_EXPR),
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
c_common_truthvalue_conversion (build_unary_op (REALPART_EXPR, t, 0)),
c_common_truthvalue_conversion (build_unary_op (IMAGPART_EXPR, t, 0)),
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
0));
}
return build_binary_op (NE_EXPR, expr, integer_zero_node, 1);
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static void def_builtin_1 (enum built_in_function fncode,
const char *name,
enum built_in_class fnclass,
tree fntype, tree libtype,
bool both_p, bool fallback_p, bool nonansi_p,
tree fnattrs, bool implicit_p);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Make a variant type in the proper way for C/C++, propagating qualifiers
down to the element type of an array. */
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_build_qualified_type (tree type, int type_quals)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (type == error_mark_node)
return type;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (TREE_CODE (type) == ARRAY_TYPE)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{
tree t;
tree element_type = c_build_qualified_type (TREE_TYPE (type),
type_quals);
/* See if we already have an identically qualified type. */
for (t = TYPE_MAIN_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
{
if (TYPE_QUALS (strip_array_types (t)) == type_quals
&& TYPE_NAME (t) == TYPE_NAME (type)
&& TYPE_CONTEXT (t) == TYPE_CONTEXT (type)
&& attribute_list_equal (TYPE_ATTRIBUTES (t),
TYPE_ATTRIBUTES (type)))
break;
}
if (!t)
{
t = build_variant_type_copy (type);
TREE_TYPE (t) = element_type;
}
return t;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* A restrict-qualified pointer type must be a pointer to object or
incomplete type. Note that the use of POINTER_TYPE_P also allows
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
REFERENCE_TYPEs, which is appropriate for C++. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if ((type_quals & TYPE_QUAL_RESTRICT)
&& (!POINTER_TYPE_P (type)
|| !C_TYPE_OBJECT_OR_INCOMPLETE_P (TREE_TYPE (type))))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("invalid use of %<restrict%>");
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
type_quals &= ~TYPE_QUAL_RESTRICT;
}
return build_qualified_type (type, type_quals);
}
/* Apply the TYPE_QUALS to the new DECL. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_apply_type_quals_to_decl (int type_quals, tree decl)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
tree type = TREE_TYPE (decl);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (type == error_mark_node)
return;
if (((type_quals & TYPE_QUAL_CONST)
|| (type && TREE_CODE (type) == REFERENCE_TYPE))
/* An object declared 'const' is only readonly after it is
initialized. We don't have any way of expressing this currently,
so we need to be conservative and unset TREE_READONLY for types
with constructors. Otherwise aliasing code will ignore stores in
an inline constructor. */
&& !(type && TYPE_NEEDS_CONSTRUCTING (type)))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
TREE_READONLY (decl) = 1;
if (type_quals & TYPE_QUAL_VOLATILE)
{
TREE_SIDE_EFFECTS (decl) = 1;
TREE_THIS_VOLATILE (decl) = 1;
}
if (type_quals & TYPE_QUAL_RESTRICT)
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
while (type && TREE_CODE (type) == ARRAY_TYPE)
/* Allow 'restrict' on arrays of pointers.
FIXME currently we just ignore it. */
type = TREE_TYPE (type);
if (!type
|| !POINTER_TYPE_P (type)
|| !C_TYPE_OBJECT_OR_INCOMPLETE_P (TREE_TYPE (type)))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("invalid use of %<restrict%>");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
else if (flag_strict_aliasing && type == TREE_TYPE (decl))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Indicate we need to make a unique alias set for this pointer.
We can't do it here because it might be pointing to an
incomplete type. */
DECL_POINTER_ALIAS_SET (decl) = -2;
}
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Hash function for the problem of multiple type definitions in
different files. This must hash all types that will compare
equal via comptypes to the same value. In practice it hashes
on some of the simple stuff and leaves the details to comptypes. */
static hashval_t
c_type_hash (const void *p)
{
int i = 0;
int shift, size;
tree t = (tree) p;
tree t2;
switch (TREE_CODE (t))
{
/* For pointers, hash on pointee type plus some swizzling. */
case POINTER_TYPE:
return c_type_hash (TREE_TYPE (t)) ^ 0x3003003;
/* Hash on number of elements and total size. */
case ENUMERAL_TYPE:
shift = 3;
t2 = TYPE_VALUES (t);
break;
case RECORD_TYPE:
shift = 0;
t2 = TYPE_FIELDS (t);
break;
case QUAL_UNION_TYPE:
shift = 1;
t2 = TYPE_FIELDS (t);
break;
case UNION_TYPE:
shift = 2;
t2 = TYPE_FIELDS (t);
break;
default:
gcc_unreachable ();
}
for (; t2; t2 = TREE_CHAIN (t2))
i++;
size = TREE_INT_CST_LOW (TYPE_SIZE (t));
return ((size << 24) | (i << shift));
}
static GTY((param_is (union tree_node))) htab_t type_hash_table;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Return the typed-based alias set for T, which may be an expression
or a type. Return -1 if we don't do anything special. */
HOST_WIDE_INT
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_common_get_alias_set (tree t)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
tree u;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
PTR *slot;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Permit type-punning when accessing a union, provided the access
is directly through the union. For example, this code does not
permit taking the address of a union member and then storing
through it. Even the type-punning allowed here is a GCC
extension, albeit a common and useful one; the C standard says
that such accesses have implementation-defined behavior. */
for (u = t;
TREE_CODE (u) == COMPONENT_REF || TREE_CODE (u) == ARRAY_REF;
u = TREE_OPERAND (u, 0))
if (TREE_CODE (u) == COMPONENT_REF
&& TREE_CODE (TREE_TYPE (TREE_OPERAND (u, 0))) == UNION_TYPE)
return 0;
/* That's all the expressions we handle specially. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!TYPE_P (t))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return -1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* The C standard guarantees that any object may be accessed via an
Use the stock 3.2.1-prerelease file. Approved by: obrien
2002-09-01 21:08:29 +00:00
lvalue that has character type. */
if (t == char_type_node
|| t == signed_char_type_node
|| t == unsigned_char_type_node)
return 0;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* If it has the may_alias attribute, it can alias anything. */
if (lookup_attribute ("may_alias", TYPE_ATTRIBUTES (t)))
return 0;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* The C standard specifically allows aliasing between signed and
unsigned variants of the same type. We treat the signed
variant as canonical. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (t) == INTEGER_TYPE && TYPE_UNSIGNED (t))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
tree t1 = c_common_signed_type (t);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* t1 == t can happen for boolean nodes which are always unsigned. */
if (t1 != t)
return get_alias_set (t1);
}
else if (POINTER_TYPE_P (t))
{
tree t1;
/* Unfortunately, there is no canonical form of a pointer type.
In particular, if we have `typedef int I', then `int *', and
`I *' are different types. So, we have to pick a canonical
representative. We do this below.
Technically, this approach is actually more conservative that
it needs to be. In particular, `const int *' and `int *'
should be in different alias sets, according to the C and C++
standard, since their types are not the same, and so,
technically, an `int **' and `const int **' cannot point at
the same thing.
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
But, the standard is wrong. In particular, this code is
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
legal C++:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int *ip;
int **ipp = &ip;
const int* const* cipp = ipp;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
And, it doesn't make sense for that to be legal unless you
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
can dereference IPP and CIPP. So, we ignore cv-qualifiers on
the pointed-to types. This issue has been reported to the
C++ committee. */
t1 = build_type_no_quals (t);
if (t1 != t)
return get_alias_set (t1);
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Handle the case of multiple type nodes referring to "the same" type,
which occurs with IMA. These share an alias set. FIXME: Currently only
C90 is handled. (In C99 type compatibility is not transitive, which
complicates things mightily. The alias set splay trees can theoretically
represent this, but insertion is tricky when you consider all the
different orders things might arrive in.) */
if (c_language != clk_c || flag_isoc99)
return -1;
/* Save time if there's only one input file. */
if (num_in_fnames == 1)
return -1;
/* Pointers need special handling if they point to any type that
needs special handling (below). */
if (TREE_CODE (t) == POINTER_TYPE)
{
tree t2;
/* Find bottom type under any nested POINTERs. */
for (t2 = TREE_TYPE (t);
TREE_CODE (t2) == POINTER_TYPE;
t2 = TREE_TYPE (t2))
;
if (TREE_CODE (t2) != RECORD_TYPE
&& TREE_CODE (t2) != ENUMERAL_TYPE
&& TREE_CODE (t2) != QUAL_UNION_TYPE
&& TREE_CODE (t2) != UNION_TYPE)
return -1;
if (TYPE_SIZE (t2) == 0)
return -1;
}
/* These are the only cases that need special handling. */
if (TREE_CODE (t) != RECORD_TYPE
&& TREE_CODE (t) != ENUMERAL_TYPE
&& TREE_CODE (t) != QUAL_UNION_TYPE
&& TREE_CODE (t) != UNION_TYPE
&& TREE_CODE (t) != POINTER_TYPE)
return -1;
/* Undefined? */
if (TYPE_SIZE (t) == 0)
return -1;
/* Look up t in hash table. Only one of the compatible types within each
alias set is recorded in the table. */
if (!type_hash_table)
type_hash_table = htab_create_ggc (1021, c_type_hash,
(htab_eq) lang_hooks.types_compatible_p,
NULL);
slot = htab_find_slot (type_hash_table, t, INSERT);
if (*slot != NULL)
{
TYPE_ALIAS_SET (t) = TYPE_ALIAS_SET ((tree)*slot);
return TYPE_ALIAS_SET ((tree)*slot);
}
else
/* Our caller will assign and record (in t) a new alias set; all we need
to do is remember t in the hash table. */
*slot = t;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
return -1;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Compute the value of 'sizeof (TYPE)' or '__alignof__ (TYPE)', where the
second parameter indicates which OPERATOR is being applied. The COMPLAIN
flag controls whether we should diagnose possibly ill-formed
constructs or not. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
c_sizeof_or_alignof_type (tree type, bool is_sizeof, int complain)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
const char *op_name;
tree value = NULL;
enum tree_code type_code = TREE_CODE (type);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
op_name = is_sizeof ? "sizeof" : "__alignof__";
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (type_code == FUNCTION_TYPE)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (is_sizeof)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (complain && (pedantic || warn_pointer_arith))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
pedwarn ("invalid application of %<sizeof%> to a function type");
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
value = size_one_node;
}
else
value = size_int (FUNCTION_BOUNDARY / BITS_PER_UNIT);
}
else if (type_code == VOID_TYPE || type_code == ERROR_MARK)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (type_code == VOID_TYPE
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
&& complain && (pedantic || warn_pointer_arith))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
pedwarn ("invalid application of %qs to a void type", op_name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
value = size_one_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
else if (!COMPLETE_TYPE_P (type))
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (complain)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("invalid application of %qs to incomplete type %qT ",
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
op_name, type);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
value = size_zero_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
else
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (is_sizeof)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Convert in case a char is more than one unit. */
value = size_binop (CEIL_DIV_EXPR, TYPE_SIZE_UNIT (type),
size_int (TYPE_PRECISION (char_type_node)
/ BITS_PER_UNIT));
else
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
value = size_int (TYPE_ALIGN_UNIT (type));
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* VALUE will have an integer type with TYPE_IS_SIZETYPE set.
TYPE_IS_SIZETYPE means that certain things (like overflow) will
never happen. However, this node should really have type
`size_t', which is just a typedef for an ordinary integer type. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
value = fold_convert (size_type_node, value);
gcc_assert (!TYPE_IS_SIZETYPE (TREE_TYPE (value)));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return value;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
/* Implement the __alignof keyword: Return the minimum required
gcc: upstream alignment cleanups. This solves GCC/32617 and contributes to reduce differences with Apple's gcc42. Complete some references in the ChangeLog while here. Obtained from: gcc 4.3 (rev. 126529, 126588; GPLv2) MFC after: 3 weeks
2013-11-29 18:46:02 +00:00
alignment of EXPR, measured in bytes. For VAR_DECLs,
FUNCTION_DECLs and FIELD_DECLs return DECL_ALIGN (which can be set
from an "aligned" __attribute__ specification). */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_alignof_expr (tree expr)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
tree t;
gcc: upstream alignment cleanups. This solves GCC/32617 and contributes to reduce differences with Apple's gcc42. Complete some references in the ChangeLog while here. Obtained from: gcc 4.3 (rev. 126529, 126588; GPLv2) MFC after: 3 weeks
2013-11-29 18:46:02 +00:00
if (VAR_OR_FUNCTION_DECL_P (expr))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
t = size_int (DECL_ALIGN_UNIT (expr));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
else if (TREE_CODE (expr) == COMPONENT_REF
&& DECL_C_BIT_FIELD (TREE_OPERAND (expr, 1)))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("%<__alignof%> applied to a bit-field");
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
t = size_one_node;
}
else if (TREE_CODE (expr) == COMPONENT_REF
&& TREE_CODE (TREE_OPERAND (expr, 1)) == FIELD_DECL)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
t = size_int (DECL_ALIGN_UNIT (TREE_OPERAND (expr, 1)));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
else if (TREE_CODE (expr) == INDIRECT_REF)
{
tree t = TREE_OPERAND (expr, 0);
tree best = t;
int bestalign = TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t)));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
while ((TREE_CODE (t) == NOP_EXPR || TREE_CODE (t) == CONVERT_EXPR)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
&& TREE_CODE (TREE_TYPE (TREE_OPERAND (t, 0))) == POINTER_TYPE)
{
int thisalign;
t = TREE_OPERAND (t, 0);
thisalign = TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t)));
if (thisalign > bestalign)
best = t, bestalign = thisalign;
}
return c_alignof (TREE_TYPE (TREE_TYPE (best)));
}
else
return c_alignof (TREE_TYPE (expr));
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return fold_convert (size_type_node, t);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Handle C and C++ default attributes. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
enum built_in_attribute
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
#define DEF_ATTR_NULL_TREE(ENUM) ENUM,
#define DEF_ATTR_INT(ENUM, VALUE) ENUM,
#define DEF_ATTR_IDENT(ENUM, STRING) ENUM,
#define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM,
#include "builtin-attrs.def"
#undef DEF_ATTR_NULL_TREE
#undef DEF_ATTR_INT
#undef DEF_ATTR_IDENT
#undef DEF_ATTR_TREE_LIST
ATTR_LAST
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
};
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
static GTY(()) tree built_in_attributes[(int) ATTR_LAST];
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static void c_init_attributes (void);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
enum c_builtin_type
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
#define DEF_PRIMITIVE_TYPE(NAME, VALUE) NAME,
#define DEF_FUNCTION_TYPE_0(NAME, RETURN) NAME,
#define DEF_FUNCTION_TYPE_1(NAME, RETURN, ARG1) NAME,
#define DEF_FUNCTION_TYPE_2(NAME, RETURN, ARG1, ARG2) NAME,
#define DEF_FUNCTION_TYPE_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
#define DEF_FUNCTION_TYPE_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#define DEF_FUNCTION_TYPE_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) NAME,
#define DEF_FUNCTION_TYPE_6(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6) NAME,
#define DEF_FUNCTION_TYPE_7(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7) NAME,
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#define DEF_FUNCTION_TYPE_VAR_0(NAME, RETURN) NAME,
#define DEF_FUNCTION_TYPE_VAR_1(NAME, RETURN, ARG1) NAME,
#define DEF_FUNCTION_TYPE_VAR_2(NAME, RETURN, ARG1, ARG2) NAME,
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
#define DEF_FUNCTION_TYPE_VAR_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#define DEF_FUNCTION_TYPE_VAR_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
#define DEF_FUNCTION_TYPE_VAR_5(NAME, RETURN, ARG1, ARG2, ARG3, ARG4, ARG6) \
NAME,
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#define DEF_POINTER_TYPE(NAME, TYPE) NAME,
#include "builtin-types.def"
#undef DEF_PRIMITIVE_TYPE
#undef DEF_FUNCTION_TYPE_0
#undef DEF_FUNCTION_TYPE_1
#undef DEF_FUNCTION_TYPE_2
#undef DEF_FUNCTION_TYPE_3
#undef DEF_FUNCTION_TYPE_4
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#undef DEF_FUNCTION_TYPE_5
#undef DEF_FUNCTION_TYPE_6
#undef DEF_FUNCTION_TYPE_7
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#undef DEF_FUNCTION_TYPE_VAR_0
#undef DEF_FUNCTION_TYPE_VAR_1
#undef DEF_FUNCTION_TYPE_VAR_2
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
#undef DEF_FUNCTION_TYPE_VAR_3
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#undef DEF_FUNCTION_TYPE_VAR_4
#undef DEF_FUNCTION_TYPE_VAR_5
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#undef DEF_POINTER_TYPE
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
BT_LAST
};
typedef enum c_builtin_type builtin_type;
/* A temporary array for c_common_nodes_and_builtins. Used in
communication with def_fn_type. */
static tree builtin_types[(int) BT_LAST + 1];
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* A helper function for c_common_nodes_and_builtins. Build function type
for DEF with return type RET and N arguments. If VAR is true, then the
function should be variadic after those N arguments.
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
Takes special care not to ICE if any of the types involved are
error_mark_node, which indicates that said type is not in fact available
(see builtin_type_for_size). In which case the function type as a whole
should be error_mark_node. */
static void
def_fn_type (builtin_type def, builtin_type ret, bool var, int n, ...)
{
tree args = NULL, t;
va_list list;
int i;
va_start (list, n);
for (i = 0; i < n; ++i)
{
builtin_type a = va_arg (list, builtin_type);
t = builtin_types[a];
if (t == error_mark_node)
goto egress;
args = tree_cons (NULL_TREE, t, args);
}
va_end (list);
args = nreverse (args);
if (!var)
args = chainon (args, void_list_node);
t = builtin_types[ret];
if (t == error_mark_node)
goto egress;
t = build_function_type (t, args);
egress:
builtin_types[def] = t;
}
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
/* Build builtin functions common to both C and C++ language
frontends. */
static void
c_define_builtins (tree va_list_ref_type_node, tree va_list_arg_type_node)
{
#define DEF_PRIMITIVE_TYPE(ENUM, VALUE) \
builtin_types[ENUM] = VALUE;
#define DEF_FUNCTION_TYPE_0(ENUM, RETURN) \
def_fn_type (ENUM, RETURN, 0, 0);
#define DEF_FUNCTION_TYPE_1(ENUM, RETURN, ARG1) \
def_fn_type (ENUM, RETURN, 0, 1, ARG1);
#define DEF_FUNCTION_TYPE_2(ENUM, RETURN, ARG1, ARG2) \
def_fn_type (ENUM, RETURN, 0, 2, ARG1, ARG2);
#define DEF_FUNCTION_TYPE_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
def_fn_type (ENUM, RETURN, 0, 3, ARG1, ARG2, ARG3);
#define DEF_FUNCTION_TYPE_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
def_fn_type (ENUM, RETURN, 0, 4, ARG1, ARG2, ARG3, ARG4);
#define DEF_FUNCTION_TYPE_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
def_fn_type (ENUM, RETURN, 0, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
#define DEF_FUNCTION_TYPE_6(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
ARG6) \
def_fn_type (ENUM, RETURN, 0, 6, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6);
#define DEF_FUNCTION_TYPE_7(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5, \
ARG6, ARG7) \
def_fn_type (ENUM, RETURN, 0, 7, ARG1, ARG2, ARG3, ARG4, ARG5, ARG6, ARG7);
#define DEF_FUNCTION_TYPE_VAR_0(ENUM, RETURN) \
def_fn_type (ENUM, RETURN, 1, 0);
#define DEF_FUNCTION_TYPE_VAR_1(ENUM, RETURN, ARG1) \
def_fn_type (ENUM, RETURN, 1, 1, ARG1);
#define DEF_FUNCTION_TYPE_VAR_2(ENUM, RETURN, ARG1, ARG2) \
def_fn_type (ENUM, RETURN, 1, 2, ARG1, ARG2);
#define DEF_FUNCTION_TYPE_VAR_3(ENUM, RETURN, ARG1, ARG2, ARG3) \
def_fn_type (ENUM, RETURN, 1, 3, ARG1, ARG2, ARG3);
#define DEF_FUNCTION_TYPE_VAR_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4) \
def_fn_type (ENUM, RETURN, 1, 4, ARG1, ARG2, ARG3, ARG4);
#define DEF_FUNCTION_TYPE_VAR_5(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4, ARG5) \
def_fn_type (ENUM, RETURN, 1, 5, ARG1, ARG2, ARG3, ARG4, ARG5);
#define DEF_POINTER_TYPE(ENUM, TYPE) \
builtin_types[(int) ENUM] = build_pointer_type (builtin_types[(int) TYPE]);
#include "builtin-types.def"
#undef DEF_PRIMITIVE_TYPE
#undef DEF_FUNCTION_TYPE_1
#undef DEF_FUNCTION_TYPE_2
#undef DEF_FUNCTION_TYPE_3
#undef DEF_FUNCTION_TYPE_4
#undef DEF_FUNCTION_TYPE_5
#undef DEF_FUNCTION_TYPE_6
#undef DEF_FUNCTION_TYPE_VAR_0
#undef DEF_FUNCTION_TYPE_VAR_1
#undef DEF_FUNCTION_TYPE_VAR_2
#undef DEF_FUNCTION_TYPE_VAR_3
#undef DEF_FUNCTION_TYPE_VAR_4
#undef DEF_FUNCTION_TYPE_VAR_5
#undef DEF_POINTER_TYPE
builtin_types[(int) BT_LAST] = NULL_TREE;
c_init_attributes ();
#define DEF_BUILTIN(ENUM, NAME, CLASS, TYPE, LIBTYPE, BOTH_P, FALLBACK_P, \
NONANSI_P, ATTRS, IMPLICIT, COND) \
if (NAME && COND) \
def_builtin_1 (ENUM, NAME, CLASS, \
builtin_types[(int) TYPE], \
builtin_types[(int) LIBTYPE], \
BOTH_P, FALLBACK_P, NONANSI_P, \
built_in_attributes[(int) ATTRS], IMPLICIT);
#include "builtins.def"
#undef DEF_BUILTIN
build_common_builtin_nodes ();
targetm.init_builtins ();
if (flag_mudflap)
mudflap_init ();
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Build tree nodes and builtin functions common to both C and C++ language
frontends. */
void
c_common_nodes_and_builtins (void)
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
int wchar_type_size;
tree array_domain_type;
tree va_list_ref_type_node;
tree va_list_arg_type_node;
/* Define `int' and `char' first so that dbx will output them first. */
record_builtin_type (RID_INT, NULL, integer_type_node);
record_builtin_type (RID_CHAR, "char", char_type_node);
/* `signed' is the same as `int'. FIXME: the declarations of "signed",
"unsigned long", "long long unsigned" and "unsigned short" were in C++
but not C. Are the conditionals here needed? */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (c_dialect_cxx ())
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
record_builtin_type (RID_SIGNED, NULL, integer_type_node);
record_builtin_type (RID_LONG, "long int", long_integer_type_node);
record_builtin_type (RID_UNSIGNED, "unsigned int", unsigned_type_node);
record_builtin_type (RID_MAX, "long unsigned int",
long_unsigned_type_node);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (c_dialect_cxx ())
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
record_builtin_type (RID_MAX, "unsigned long", long_unsigned_type_node);
record_builtin_type (RID_MAX, "long long int",
long_long_integer_type_node);
record_builtin_type (RID_MAX, "long long unsigned int",
long_long_unsigned_type_node);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (c_dialect_cxx ())
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
record_builtin_type (RID_MAX, "long long unsigned",
long_long_unsigned_type_node);
record_builtin_type (RID_SHORT, "short int", short_integer_type_node);
record_builtin_type (RID_MAX, "short unsigned int",
short_unsigned_type_node);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (c_dialect_cxx ())
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
record_builtin_type (RID_MAX, "unsigned short",
short_unsigned_type_node);
/* Define both `signed char' and `unsigned char'. */
record_builtin_type (RID_MAX, "signed char", signed_char_type_node);
record_builtin_type (RID_MAX, "unsigned char", unsigned_char_type_node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* These are types that c_common_type_for_size and
c_common_type_for_mode use. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
intQI_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
intHI_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
intSI_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
intDI_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#if HOST_BITS_PER_WIDE_INT >= 64
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (targetm.scalar_mode_supported_p (TImode))
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL,
get_identifier ("__int128_t"),
intTI_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#endif
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
unsigned_intQI_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
unsigned_intHI_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
unsigned_intSI_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
unsigned_intDI_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#if HOST_BITS_PER_WIDE_INT >= 64
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (targetm.scalar_mode_supported_p (TImode))
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL,
get_identifier ("__uint128_t"),
unsigned_intTI_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#endif
/* Create the widest literal types. */
widest_integer_literal_type_node
= make_signed_type (HOST_BITS_PER_WIDE_INT * 2);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
widest_integer_literal_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
widest_unsigned_literal_type_node
= make_unsigned_type (HOST_BITS_PER_WIDE_INT * 2);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL, NULL_TREE,
widest_unsigned_literal_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* `unsigned long' is the standard type for sizeof.
Note that stddef.h uses `unsigned long',
and this must agree, even if long and int are the same size. */
Update HEAD with stock GCC 3.2.2 release files.
2003-02-10 05:57:03 +00:00
size_type_node =
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
TREE_TYPE (identifier_global_value (get_identifier (SIZE_TYPE)));
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
signed_size_type_node = c_common_signed_type (size_type_node);
Update HEAD with stock GCC 3.2.2 release files.
2003-02-10 05:57:03 +00:00
set_sizetype (size_type_node);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
pid_type_node =
TREE_TYPE (identifier_global_value (get_identifier (PID_TYPE)));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
build_common_tree_nodes_2 (flag_short_double);
record_builtin_type (RID_FLOAT, NULL, float_type_node);
record_builtin_type (RID_DOUBLE, NULL, double_type_node);
record_builtin_type (RID_MAX, "long double", long_double_type_node);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Only supported decimal floating point extension if the target
actually supports underlying modes. */
if (targetm.scalar_mode_supported_p (SDmode)
&& targetm.scalar_mode_supported_p (DDmode)
&& targetm.scalar_mode_supported_p (TDmode))
{
record_builtin_type (RID_DFLOAT32, NULL, dfloat32_type_node);
record_builtin_type (RID_DFLOAT64, NULL, dfloat64_type_node);
record_builtin_type (RID_DFLOAT128, NULL, dfloat128_type_node);
}
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL,
get_identifier ("complex int"),
complex_integer_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL,
get_identifier ("complex float"),
complex_float_type_node));
lang_hooks.decls.pushdecl (build_decl (TYPE_DECL,
get_identifier ("complex double"),
complex_double_type_node));
lang_hooks.decls.pushdecl
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
(build_decl (TYPE_DECL, get_identifier ("complex long double"),
complex_long_double_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (c_dialect_cxx ())
/* For C++, make fileptr_type_node a distinct void * type until
FILE type is defined. */
fileptr_type_node = build_variant_type_copy (ptr_type_node);
Update HEAD with stock GCC 3.2.2 release files.
2003-02-10 05:57:03 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
record_builtin_type (RID_VOID, NULL, void_type_node);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* This node must not be shared. */
void_zero_node = make_node (INTEGER_CST);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
TREE_TYPE (void_zero_node) = void_type_node;
void_list_node = build_void_list_node ();
/* Make a type to be the domain of a few array types
whose domains don't really matter.
200 is small enough that it always fits in size_t
and large enough that it can hold most function names for the
initializations of __FUNCTION__ and __PRETTY_FUNCTION__. */
array_domain_type = build_index_type (size_int (200));
/* Make a type for arrays of characters.
With luck nothing will ever really depend on the length of this
array type. */
char_array_type_node
= build_array_type (char_type_node, array_domain_type);
/* Likewise for arrays of ints. */
int_array_type_node
= build_array_type (integer_type_node, array_domain_type);
string_type_node = build_pointer_type (char_type_node);
const_string_type_node
= build_pointer_type (build_qualified_type
(char_type_node, TYPE_QUAL_CONST));
/* This is special for C++ so functions can be overloaded. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
wchar_type_node = get_identifier (MODIFIED_WCHAR_TYPE);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
wchar_type_node = TREE_TYPE (identifier_global_value (wchar_type_node));
wchar_type_size = TYPE_PRECISION (wchar_type_node);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (c_dialect_cxx ())
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_UNSIGNED (wchar_type_node))
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
wchar_type_node = make_unsigned_type (wchar_type_size);
else
wchar_type_node = make_signed_type (wchar_type_size);
record_builtin_type (RID_WCHAR, "wchar_t", wchar_type_node);
}
else
{
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
signed_wchar_type_node = c_common_signed_type (wchar_type_node);
unsigned_wchar_type_node = c_common_unsigned_type (wchar_type_node);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
/* This is for wide string constants. */
wchar_array_type_node
= build_array_type (wchar_type_node, array_domain_type);
wint_type_node =
TREE_TYPE (identifier_global_value (get_identifier (WINT_TYPE)));
intmax_type_node =
TREE_TYPE (identifier_global_value (get_identifier (INTMAX_TYPE)));
uintmax_type_node =
TREE_TYPE (identifier_global_value (get_identifier (UINTMAX_TYPE)));
default_function_type = build_function_type (integer_type_node, NULL_TREE);
ptrdiff_type_node
= TREE_TYPE (identifier_global_value (get_identifier (PTRDIFF_TYPE)));
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
unsigned_ptrdiff_type_node = c_common_unsigned_type (ptrdiff_type_node);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
lang_hooks.decls.pushdecl
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
(build_decl (TYPE_DECL, get_identifier ("__builtin_va_list"),
va_list_type_node));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (TREE_CODE (va_list_type_node) == ARRAY_TYPE)
{
va_list_arg_type_node = va_list_ref_type_node =
build_pointer_type (TREE_TYPE (va_list_type_node));
}
else
{
va_list_arg_type_node = va_list_type_node;
va_list_ref_type_node = build_reference_type (va_list_type_node);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
gcc: Bring updates from Google's enhanced gcc-4.2.1. Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
2013-11-23 18:32:53 +00:00
if (!flag_preprocess_only)
c_define_builtins (va_list_ref_type_node, va_list_arg_type_node);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
main_identifier_node = get_identifier ("main");
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Create the built-in __null node. It is important that this is
not shared. */
null_node = make_node (INTEGER_CST);
TREE_TYPE (null_node) = c_common_type_for_size (POINTER_SIZE, 0);
/* Since builtin_types isn't gc'ed, don't export these nodes. */
memset (builtin_types, 0, sizeof (builtin_types));
}
/* Look up the function in built_in_decls that corresponds to DECL
and set ASMSPEC as its user assembler name. DECL must be a
function decl that declares a builtin. */
void
set_builtin_user_assembler_name (tree decl, const char *asmspec)
{
tree builtin;
gcc_assert (TREE_CODE (decl) == FUNCTION_DECL
&& DECL_BUILT_IN_CLASS (decl) == BUILT_IN_NORMAL
&& asmspec != 0);
builtin = built_in_decls [DECL_FUNCTION_CODE (decl)];
set_user_assembler_name (builtin, asmspec);
if (DECL_FUNCTION_CODE (decl) == BUILT_IN_MEMCPY)
init_block_move_fn (asmspec);
else if (DECL_FUNCTION_CODE (decl) == BUILT_IN_MEMSET)
init_block_clear_fn (asmspec);
}
/* The number of named compound-literals generated thus far. */
static GTY(()) int compound_literal_number;
/* Set DECL_NAME for DECL, a VAR_DECL for a compound-literal. */
void
set_compound_literal_name (tree decl)
{
char *name;
ASM_FORMAT_PRIVATE_NAME (name, "__compound_literal",
compound_literal_number);
compound_literal_number++;
DECL_NAME (decl) = get_identifier (name);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
build_va_arg (tree expr, tree type)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
return build1 (VA_ARG_EXPR, type, expr);
}
/* Linked list of disabled built-in functions. */
typedef struct disabled_builtin
{
const char *name;
struct disabled_builtin *next;
} disabled_builtin;
static disabled_builtin *disabled_builtins = NULL;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static bool builtin_function_disabled_p (const char *);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Disable a built-in function specified by -fno-builtin-NAME. If NAME
begins with "__builtin_", give an error. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
disable_builtin_function (const char *name)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
if (strncmp (name, "__builtin_", strlen ("__builtin_")) == 0)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("cannot disable built-in function %qs", name);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
disabled_builtin *new_disabled_builtin = XNEW (disabled_builtin);
new_disabled_builtin->name = name;
new_disabled_builtin->next = disabled_builtins;
disabled_builtins = new_disabled_builtin;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
}
/* Return true if the built-in function NAME has been disabled, false
otherwise. */
static bool
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
builtin_function_disabled_p (const char *name)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
disabled_builtin *p;
for (p = disabled_builtins; p != NULL; p = p->next)
{
if (strcmp (name, p->name) == 0)
return true;
}
return false;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Worker for DEF_BUILTIN.
Possibly define a builtin function with one or two names.
Does not declare a non-__builtin_ function if flag_no_builtin, or if
nonansi_p and flag_no_nonansi_builtin. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
static void
def_builtin_1 (enum built_in_function fncode,
const char *name,
enum built_in_class fnclass,
tree fntype, tree libtype,
bool both_p, bool fallback_p, bool nonansi_p,
tree fnattrs, bool implicit_p)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree decl;
const char *libname;
if (fntype == error_mark_node)
return;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc_assert ((!both_p && !fallback_p)
|| !strncmp (name, "__builtin_",
strlen ("__builtin_")));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
libname = name + strlen ("__builtin_");
decl = lang_hooks.builtin_function (name, fntype, fncode, fnclass,
(fallback_p ? libname : NULL),
fnattrs);
if (both_p
&& !flag_no_builtin && !builtin_function_disabled_p (libname)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
&& !(nonansi_p && flag_no_nonansi_builtin))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
lang_hooks.builtin_function (libname, libtype, fncode, fnclass,
NULL, fnattrs);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
built_in_decls[(int) fncode] = decl;
if (implicit_p)
implicit_built_in_decls[(int) fncode] = decl;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
/* Nonzero if the type T promotes to int. This is (nearly) the
integral promotions defined in ISO C99 6.3.1.1/2. */
bool
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_promoting_integer_type_p (tree t)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
switch (TREE_CODE (t))
{
case INTEGER_TYPE:
return (TYPE_MAIN_VARIANT (t) == char_type_node
|| TYPE_MAIN_VARIANT (t) == signed_char_type_node
|| TYPE_MAIN_VARIANT (t) == unsigned_char_type_node
|| TYPE_MAIN_VARIANT (t) == short_integer_type_node
|| TYPE_MAIN_VARIANT (t) == short_unsigned_type_node
|| TYPE_PRECISION (t) < TYPE_PRECISION (integer_type_node));
case ENUMERAL_TYPE:
/* ??? Technically all enumerations not larger than an int
promote to an int. But this is used along code paths
that only want to notice a size change. */
return TYPE_PRECISION (t) < TYPE_PRECISION (integer_type_node);
case BOOLEAN_TYPE:
return 1;
default:
return 0;
}
}
/* Return 1 if PARMS specifies a fixed number of parameters
and none of their types is affected by default promotions. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
int
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
self_promoting_args_p (tree parms)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
tree t;
for (t = parms; t; t = TREE_CHAIN (t))
{
tree type = TREE_VALUE (t);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (type == error_mark_node)
continue;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (TREE_CHAIN (t) == 0 && type != void_type_node)
return 0;
if (type == 0)
return 0;
if (TYPE_MAIN_VARIANT (type) == float_type_node)
return 0;
if (c_promoting_integer_type_p (type))
return 0;
}
return 1;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Recursively examines the array elements of TYPE, until a non-array
element type is found. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
strip_array_types (tree type)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
while (TREE_CODE (type) == ARRAY_TYPE)
type = TREE_TYPE (type);
return type;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Recursively remove any '*' or '&' operator from TYPE. */
tree
strip_pointer_operator (tree t)
{
while (POINTER_TYPE_P (t))
t = TREE_TYPE (t);
return t;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Used to compare case labels. K1 and K2 are actually tree nodes
representing case labels, or NULL_TREE for a `default' label.
Returns -1 if K1 is ordered before K2, -1 if K1 is ordered after
K2, and 0 if K1 and K2 are equal. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int
case_compare (splay_tree_key k1, splay_tree_key k2)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Consider a NULL key (such as arises with a `default' label) to be
smaller than anything else. */
if (!k1)
return k2 ? -1 : 0;
else if (!k2)
return k1 ? 1 : 0;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return tree_int_cst_compare ((tree) k1, (tree) k2);
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Process a case label for the range LOW_VALUE ... HIGH_VALUE. If
LOW_VALUE and HIGH_VALUE are both NULL_TREE then this case label is
actually a `default' label. If only HIGH_VALUE is NULL_TREE, then
case label was declared using the usual C/C++ syntax, rather than
the GNU case range extension. CASES is a tree containing all the
case ranges processed so far; COND is the condition for the
switch-statement itself. Returns the CASE_LABEL_EXPR created, or
ERROR_MARK_NODE if no CASE_LABEL_EXPR is created. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree
c_add_case_label (splay_tree cases, tree cond, tree orig_type,
tree low_value, tree high_value)
{
tree type;
tree label;
tree case_label;
splay_tree_node node;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Create the LABEL_DECL itself. */
label = create_artificial_label ();
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* If there was an error processing the switch condition, bail now
before we get more confused. */
if (!cond || cond == error_mark_node)
goto error_out;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if ((low_value && TREE_TYPE (low_value)
&& POINTER_TYPE_P (TREE_TYPE (low_value)))
|| (high_value && TREE_TYPE (high_value)
&& POINTER_TYPE_P (TREE_TYPE (high_value))))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("pointers are not permitted as case values");
goto error_out;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Case ranges are a GNU extension. */
if (high_value && pedantic)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
pedwarn ("range expressions in switch statements are non-standard");
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
type = TREE_TYPE (cond);
if (low_value)
{
low_value = check_case_value (low_value);
low_value = convert_and_check (type, low_value);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (low_value == error_mark_node)
goto error_out;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
if (high_value)
{
high_value = check_case_value (high_value);
high_value = convert_and_check (type, high_value);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (high_value == error_mark_node)
goto error_out;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (low_value && high_value)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* If the LOW_VALUE and HIGH_VALUE are the same, then this isn't
really a case range, even though it was written that way.
Remove the HIGH_VALUE to simplify later processing. */
if (tree_int_cst_equal (low_value, high_value))
high_value = NULL_TREE;
else if (!tree_int_cst_lt (low_value, high_value))
warning (0, "empty range specified");
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* See if the case is in range of the type of the original testing
expression. If both low_value and high_value are out of range,
don't insert the case label and return NULL_TREE. */
if (low_value
&& !check_case_bounds (type, orig_type,
&low_value, high_value ? &high_value : NULL))
return NULL_TREE;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Look up the LOW_VALUE in the table of case labels we already
have. */
node = splay_tree_lookup (cases, (splay_tree_key) low_value);
/* If there was not an exact match, check for overlapping ranges.
There's no need to do this if there's no LOW_VALUE or HIGH_VALUE;
that's a `default' label and the only overlap is an exact match. */
if (!node && (low_value || high_value))
{
splay_tree_node low_bound;
splay_tree_node high_bound;
/* Even though there wasn't an exact match, there might be an
overlap between this case range and another case range.
Since we've (inductively) not allowed any overlapping case
ranges, we simply need to find the greatest low case label
that is smaller that LOW_VALUE, and the smallest low case
label that is greater than LOW_VALUE. If there is an overlap
it will occur in one of these two ranges. */
low_bound = splay_tree_predecessor (cases,
(splay_tree_key) low_value);
high_bound = splay_tree_successor (cases,
(splay_tree_key) low_value);
/* Check to see if the LOW_BOUND overlaps. It is smaller than
the LOW_VALUE, so there is no need to check unless the
LOW_BOUND is in fact itself a case range. */
if (low_bound
&& CASE_HIGH ((tree) low_bound->value)
&& tree_int_cst_compare (CASE_HIGH ((tree) low_bound->value),
low_value) >= 0)
node = low_bound;
/* Check to see if the HIGH_BOUND overlaps. The low end of that
range is bigger than the low end of the current range, so we
are only interested if the current range is a real range, and
not an ordinary case label. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
else if (high_bound
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
&& high_value
&& (tree_int_cst_compare ((tree) high_bound->key,
high_value)
<= 0))
node = high_bound;
}
/* If there was an overlap, issue an error. */
if (node)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree duplicate = CASE_LABEL ((tree) node->value);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
if (high_value)
{
error ("duplicate (or overlapping) case value");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
error ("%Jthis is the first entry overlapping that value", duplicate);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
else if (low_value)
{
error ("duplicate case value") ;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
error ("%Jpreviously used here", duplicate);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
else
{
error ("multiple default labels in one switch");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
error ("%Jthis is the first default label", duplicate);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
goto error_out;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
/* Add a CASE_LABEL to the statement-tree. */
case_label = add_stmt (build_case_label (low_value, high_value, label));
/* Register this case label in the splay tree. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
splay_tree_insert (cases,
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
(splay_tree_key) low_value,
(splay_tree_value) case_label);
return case_label;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error_out:
/* Add a label so that the back-end doesn't think that the beginning of
the switch is unreachable. Note that we do not add a case label, as
that just leads to duplicates and thence to failure later on. */
if (!cases->root)
{
tree t = create_artificial_label ();
add_stmt (build_stmt (LABEL_EXPR, t));
}
return error_mark_node;
}
/* Subroutines of c_do_switch_warnings, called via splay_tree_foreach.
Used to verify that case values match up with enumerator values. */
static void
match_case_to_enum_1 (tree key, tree type, tree label)
{
char buf[2 + 2*HOST_BITS_PER_WIDE_INT/4 + 1];
/* ??? Not working too hard to print the double-word value.
Should perhaps be done with %lwd in the diagnostic routines? */
if (TREE_INT_CST_HIGH (key) == 0)
snprintf (buf, sizeof (buf), HOST_WIDE_INT_PRINT_UNSIGNED,
TREE_INT_CST_LOW (key));
else if (!TYPE_UNSIGNED (type)
&& TREE_INT_CST_HIGH (key) == -1
&& TREE_INT_CST_LOW (key) != 0)
snprintf (buf, sizeof (buf), "-" HOST_WIDE_INT_PRINT_UNSIGNED,
-TREE_INT_CST_LOW (key));
else
snprintf (buf, sizeof (buf), HOST_WIDE_INT_PRINT_DOUBLE_HEX,
TREE_INT_CST_HIGH (key), TREE_INT_CST_LOW (key));
if (TYPE_NAME (type) == 0)
warning (0, "%Jcase value %qs not in enumerated type",
CASE_LABEL (label), buf);
else
warning (0, "%Jcase value %qs not in enumerated type %qT",
CASE_LABEL (label), buf, type);
}
/* Subroutine of c_do_switch_warnings, called via splay_tree_foreach.
Used to verify that case values match up with enumerator values. */
static int
match_case_to_enum (splay_tree_node node, void *data)
{
tree label = (tree) node->value;
tree type = (tree) data;
/* Skip default case. */
if (!CASE_LOW (label))
return 0;
/* If CASE_LOW_SEEN is not set, that means CASE_LOW did not appear
when we did our enum->case scan. Reset our scratch bit after. */
if (!CASE_LOW_SEEN (label))
match_case_to_enum_1 (CASE_LOW (label), type, label);
else
CASE_LOW_SEEN (label) = 0;
/* If CASE_HIGH is non-null, we have a range. If CASE_HIGH_SEEN is
not set, that means that CASE_HIGH did not appear when we did our
enum->case scan. Reset our scratch bit after. */
if (CASE_HIGH (label))
{
if (!CASE_HIGH_SEEN (label))
match_case_to_enum_1 (CASE_HIGH (label), type, label);
else
CASE_HIGH_SEEN (label) = 0;
}
return 0;
}
/* Handle -Wswitch*. Called from the front end after parsing the
switch construct. */
/* ??? Should probably be somewhere generic, since other languages
besides C and C++ would want this. At the moment, however, C/C++
are the only tree-ssa languages that support enumerations at all,
so the point is moot. */
void
c_do_switch_warnings (splay_tree cases, location_t switch_location,
tree type, tree cond)
{
splay_tree_node default_node;
splay_tree_node node;
tree chain;
if (!warn_switch && !warn_switch_enum && !warn_switch_default)
return;
default_node = splay_tree_lookup (cases, (splay_tree_key) NULL);
if (!default_node)
warning (OPT_Wswitch_default, "%Hswitch missing default case",
&switch_location);
/* From here on, we only care about about enumerated types. */
if (!type || TREE_CODE (type) != ENUMERAL_TYPE)
return;
/* If the switch expression was an enumerated type, check that
exactly all enumeration literals are covered by the cases.
The check is made when -Wswitch was specified and there is no
default case, or when -Wswitch-enum was specified. */
if (!warn_switch_enum
&& !(warn_switch && !default_node))
return;
/* Clearing COND if it is not an integer constant simplifies
the tests inside the loop below. */
if (TREE_CODE (cond) != INTEGER_CST)
cond = NULL_TREE;
/* The time complexity here is O(N*lg(N)) worst case, but for the
common case of monotonically increasing enumerators, it is
O(N), since the nature of the splay tree will keep the next
element adjacent to the root at all times. */
for (chain = TYPE_VALUES (type); chain; chain = TREE_CHAIN (chain))
{
tree value = TREE_VALUE (chain);
node = splay_tree_lookup (cases, (splay_tree_key) value);
if (node)
{
/* Mark the CASE_LOW part of the case entry as seen. */
tree label = (tree) node->value;
CASE_LOW_SEEN (label) = 1;
continue;
}
/* Even though there wasn't an exact match, there might be a
case range which includes the enumator's value. */
node = splay_tree_predecessor (cases, (splay_tree_key) value);
if (node && CASE_HIGH ((tree) node->value))
{
tree label = (tree) node->value;
int cmp = tree_int_cst_compare (CASE_HIGH (label), value);
if (cmp >= 0)
{
/* If we match the upper bound exactly, mark the CASE_HIGH
part of the case entry as seen. */
if (cmp == 0)
CASE_HIGH_SEEN (label) = 1;
continue;
}
}
/* We've now determined that this enumerated literal isn't
handled by the case labels of the switch statement. */
/* If the switch expression is a constant, we only really care
about whether that constant is handled by the switch. */
if (cond && tree_int_cst_compare (cond, value))
continue;
warning (0, "%Henumeration value %qE not handled in switch",
&switch_location, TREE_PURPOSE (chain));
}
/* Warn if there are case expressions that don't correspond to
enumerators. This can occur since C and C++ don't enforce
type-checking of assignments to enumeration variables.
The time complexity here is now always O(N) worst case, since
we should have marked both the lower bound and upper bound of
every disjoint case label, with CASE_LOW_SEEN and CASE_HIGH_SEEN
above. This scan also resets those fields. */
splay_tree_foreach (cases, match_case_to_enum, type);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Finish an expression taking the address of LABEL (an
IDENTIFIER_NODE). Returns an expression for the address. */
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
tree
finish_label_address_expr (tree label)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
tree result;
if (pedantic)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
pedwarn ("taking the address of a label is non-standard");
if (label == error_mark_node)
return error_mark_node;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
label = lookup_label (label);
if (label == NULL_TREE)
result = null_pointer_node;
else
{
TREE_USED (label) = 1;
result = build1 (ADDR_EXPR, ptr_type_node, label);
/* The current function in not necessarily uninlinable.
Computed gotos are incompatible with inlining, but the value
here could be used only in a diagnostic, for example. */
}
return result;
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Hook used by expand_expr to expand language-specific tree codes. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* The only things that should go here are bits needed to expand
constant initializers. Everything else should be handled by the
gimplification routines. */
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
rtx
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
c_expand_expr (tree exp, rtx target, enum machine_mode tmode,
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
int modifier /* Actually enum_modifier. */,
rtx *alt_rtl)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
switch (TREE_CODE (exp))
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case COMPOUND_LITERAL_EXPR:
{
/* Initialize the anonymous variable declared in the compound
literal, then return the variable. */
tree decl = COMPOUND_LITERAL_EXPR_DECL (exp);
emit_local_var (decl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
return expand_expr_real (decl, target, tmode, modifier, alt_rtl);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
default:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc_unreachable ();
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
/* Hook used by staticp to handle language-specific tree codes. */
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_staticp (tree exp)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return (TREE_CODE (exp) == COMPOUND_LITERAL_EXPR
&& TREE_STATIC (COMPOUND_LITERAL_EXPR_DECL (exp))
? exp : NULL);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Given a boolean expression ARG, return a tree representing an increment
or decrement (as indicated by CODE) of ARG. The front end must check for
invalid cases (e.g., decrement in C++). */
tree
boolean_increment (enum tree_code code, tree arg)
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
tree val;
tree true_res = boolean_true_node;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
arg = stabilize_reference (arg);
switch (code)
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
{
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case PREINCREMENT_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
val = build2 (MODIFY_EXPR, TREE_TYPE (arg), arg, true_res);
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
break;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case POSTINCREMENT_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
val = build2 (MODIFY_EXPR, TREE_TYPE (arg), arg, true_res);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
arg = save_expr (arg);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
val = build2 (COMPOUND_EXPR, TREE_TYPE (arg), val, arg);
val = build2 (COMPOUND_EXPR, TREE_TYPE (arg), arg, val);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
break;
case PREDECREMENT_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
val = build2 (MODIFY_EXPR, TREE_TYPE (arg), arg,
invert_truthvalue (arg));
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
break;
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
case POSTDECREMENT_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
val = build2 (MODIFY_EXPR, TREE_TYPE (arg), arg,
invert_truthvalue (arg));
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
arg = save_expr (arg);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
val = build2 (COMPOUND_EXPR, TREE_TYPE (arg), val, arg);
val = build2 (COMPOUND_EXPR, TREE_TYPE (arg), arg, val);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
break;
default:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc_unreachable ();
Merge our -fformat-extensions and printf0() into GCC 2.95.1.
1999-10-16 08:28:26 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
TREE_SIDE_EFFECTS (val) = 1;
return val;
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Built-in macros for stddef.h, that require macros defined in this
file. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_stddef_cpp_builtins(void)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
builtin_define_with_value ("__SIZE_TYPE__", SIZE_TYPE, 0);
builtin_define_with_value ("__PTRDIFF_TYPE__", PTRDIFF_TYPE, 0);
builtin_define_with_value ("__WCHAR_TYPE__", MODIFIED_WCHAR_TYPE, 0);
builtin_define_with_value ("__WINT_TYPE__", WINT_TYPE, 0);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
builtin_define_with_value ("__INTMAX_TYPE__", INTMAX_TYPE, 0);
builtin_define_with_value ("__UINTMAX_TYPE__", UINTMAX_TYPE, 0);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
}
Fix conflicts. This brings revs 1.2 (-fformat-extensions) and 1.3 (printf0()) into EGCS 1.1.2.
1999-08-27 10:01:05 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
c_init_attributes (void)
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
{
/* Fill in the built_in_attributes array. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#define DEF_ATTR_NULL_TREE(ENUM) \
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
built_in_attributes[(int) ENUM] = NULL_TREE;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
#define DEF_ATTR_INT(ENUM, VALUE) \
built_in_attributes[(int) ENUM] = build_int_cst (NULL_TREE, VALUE);
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
#define DEF_ATTR_IDENT(ENUM, STRING) \
built_in_attributes[(int) ENUM] = get_identifier (STRING);
#define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) \
built_in_attributes[(int) ENUM] \
= tree_cons (built_in_attributes[(int) PURPOSE], \
built_in_attributes[(int) VALUE], \
built_in_attributes[(int) CHAIN]);
#include "builtin-attrs.def"
#undef DEF_ATTR_NULL_TREE
#undef DEF_ATTR_INT
#undef DEF_ATTR_IDENT
#undef DEF_ATTR_TREE_LIST
Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00
}
We use the stock 3.1-snap file now. All the -Wformat related code moved to c-format.c.
2002-02-01 18:53:34 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Attribute handlers common to C front ends. */
/* Handle a "packed" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_packed_attribute (tree *node, tree name, tree ARG_UNUSED (args),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
int flags, bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (TYPE_P (*node))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
*node = build_variant_type_copy (*node);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
TYPE_PACKED (*node) = 1;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
else if (TREE_CODE (*node) == FIELD_DECL)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{
if (TYPE_ALIGN (TREE_TYPE (*node)) <= BITS_PER_UNIT)
warning (OPT_Wattributes,
"%qE attribute ignored for field of type %qT",
name, TREE_TYPE (*node));
else
DECL_PACKED (*node) = 1;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* We can't set DECL_PACKED for a VAR_DECL, because the bit is
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
used for DECL_REGISTER. It wouldn't mean anything anyway.
We can't set DECL_PACKED on the type of a TYPE_DECL, because
that changes what the typedef is typing. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "nocommon" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_nocommon_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (TREE_CODE (*node) == VAR_DECL)
DECL_COMMON (*node) = 0;
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "common" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_common_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (TREE_CODE (*node) == VAR_DECL)
DECL_COMMON (*node) = 1;
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "noreturn" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_noreturn_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree type = TREE_TYPE (*node);
/* See FIXME comment in c_common_attribute_table. */
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 4727659 */
if (TREE_CODE (*node) == FUNCTION_DECL
|| objc_method_decl (TREE_CODE (*node)))
/* APPLE LOCAL end radar 4727659 */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
TREE_THIS_VOLATILE (*node) = 1;
else if (TREE_CODE (type) == POINTER_TYPE
&& TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE)
TREE_TYPE (*node)
= build_pointer_type
(build_type_variant (TREE_TYPE (type),
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
TYPE_READONLY (TREE_TYPE (type)), 1));
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 6237713 */
else if (TREE_CODE (type) == BLOCK_POINTER_TYPE
&& TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE)
TREE_TYPE (*node)
= build_block_pointer_type
(build_type_variant (TREE_TYPE (type),
TYPE_READONLY (TREE_TYPE (type)), 1));
/* APPLE LOCAL end radar 6237713 */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "noinline" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_noinline_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (TREE_CODE (*node) == FUNCTION_DECL)
DECL_UNINLINABLE (*node) = 1;
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "always_inline" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_always_inline_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (TREE_CODE (*node) == FUNCTION_DECL)
{
/* Do nothing else, just set the attribute. We'll get at
it later with lookup_attribute. */
}
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Handle a "gnu_inline" attribute; arguments as in
struct attribute_spec.handler. */
static tree
handle_gnu_inline_attribute (tree *node, tree name,
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
bool *no_add_attrs)
{
if (TREE_CODE (*node) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (*node))
{
/* Do nothing else, just set the attribute. We'll get at
it later with lookup_attribute. */
}
else
{
warning (OPT_Wattributes, "%qE attribute ignored", name);
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "flatten" attribute; arguments as in
struct attribute_spec.handler. */
static tree
handle_flatten_attribute (tree *node, tree name,
tree args ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED, bool *no_add_attrs)
{
if (TREE_CODE (*node) == FUNCTION_DECL)
/* Do nothing else, just set the attribute. We'll get at
it later with lookup_attribute. */
;
else
{
warning (OPT_Wattributes, "%qE attribute ignored", name);
*no_add_attrs = true;
}
return NULL_TREE;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Handle a "used" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_used_attribute (tree *pnode, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree node = *pnode;
if (TREE_CODE (node) == FUNCTION_DECL
|| (TREE_CODE (node) == VAR_DECL && TREE_STATIC (node)))
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
TREE_USED (node) = 1;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
DECL_PRESERVE_P (node) = 1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "unused" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_unused_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int flags, bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (DECL_P (*node))
{
tree decl = *node;
if (TREE_CODE (decl) == PARM_DECL
|| TREE_CODE (decl) == VAR_DECL
|| TREE_CODE (decl) == FUNCTION_DECL
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
|| (TREE_CODE (decl) == LABEL_DECL
&& ! DECL_ARTIFICIAL (decl))
/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
|| TREE_CODE (decl) == TYPE_DECL)
TREE_USED (decl) = 1;
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
}
else
{
if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
*node = build_variant_type_copy (*node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
TREE_USED (*node) = 1;
}
return NULL_TREE;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Handle a "externally_visible" attribute; arguments as in
struct attribute_spec.handler. */
static tree
handle_externally_visible_attribute (tree *pnode, tree name,
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
bool *no_add_attrs)
{
tree node = *pnode;
if (TREE_CODE (node) == FUNCTION_DECL || TREE_CODE (node) == VAR_DECL)
{
if ((!TREE_STATIC (node) && TREE_CODE (node) != FUNCTION_DECL
&& !DECL_EXTERNAL (node)) || !TREE_PUBLIC (node))
{
warning (OPT_Wattributes,
"%qE attribute have effect only on public objects", name);
*no_add_attrs = true;
}
}
else
{
warning (OPT_Wattributes, "%qE attribute ignored", name);
*no_add_attrs = true;
}
return NULL_TREE;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Handle a "const" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_const_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree type = TREE_TYPE (*node);
/* See FIXME comment on noreturn in c_common_attribute_table. */
if (TREE_CODE (*node) == FUNCTION_DECL)
TREE_READONLY (*node) = 1;
else if (TREE_CODE (type) == POINTER_TYPE
&& TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE)
TREE_TYPE (*node)
= build_pointer_type
(build_type_variant (TREE_TYPE (type), 1,
TREE_THIS_VOLATILE (TREE_TYPE (type))));
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "transparent_union" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_transparent_union_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args), int flags,
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree type = NULL;
*no_add_attrs = true;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (DECL_P (*node))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (*node) != TYPE_DECL)
goto ignored;
node = &TREE_TYPE (*node);
type = *node;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
else if (TYPE_P (*node))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
type = *node;
else
goto ignored;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (type) == UNION_TYPE)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* When IN_PLACE is set, leave the check for FIELDS and MODE to
the code in finish_struct. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{
if (TYPE_FIELDS (type) == NULL_TREE
|| TYPE_MODE (type) != DECL_MODE (TYPE_FIELDS (type)))
goto ignored;
/* A type variant isn't good enough, since we don't a cast
to such a type removed as a no-op. */
*node = type = build_duplicate_type (type);
}
TYPE_TRANSPARENT_UNION (type) = 1;
return NULL_TREE;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
ignored:
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
/* Handle a "constructor" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_constructor_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = *node;
tree type = TREE_TYPE (decl);
if (TREE_CODE (decl) == FUNCTION_DECL
&& TREE_CODE (type) == FUNCTION_TYPE
&& decl_function_context (decl) == 0)
{
DECL_STATIC_CONSTRUCTOR (decl) = 1;
TREE_USED (decl) = 1;
}
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "destructor" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_destructor_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = *node;
tree type = TREE_TYPE (decl);
if (TREE_CODE (decl) == FUNCTION_DECL
&& TREE_CODE (type) == FUNCTION_TYPE
&& decl_function_context (decl) == 0)
{
DECL_STATIC_DESTRUCTOR (decl) = 1;
TREE_USED (decl) = 1;
}
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "mode" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_mode_attribute (tree *node, tree name, tree args,
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree type = *node;
*no_add_attrs = true;
if (TREE_CODE (TREE_VALUE (args)) != IDENTIFIER_NODE)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
else
{
int j;
const char *p = IDENTIFIER_POINTER (TREE_VALUE (args));
int len = strlen (p);
enum machine_mode mode = VOIDmode;
tree typefm;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
bool valid_mode;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (len > 4 && p[0] == '_' && p[1] == '_'
&& p[len - 1] == '_' && p[len - 2] == '_')
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
char *newp = (char *) alloca (len - 1);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
strcpy (newp, &p[2]);
newp[len - 4] = '\0';
p = newp;
}
/* Change this type to have a type with the specified mode.
First check for the special modes. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!strcmp (p, "byte"))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
mode = byte_mode;
else if (!strcmp (p, "word"))
mode = word_mode;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
else if (!strcmp (p, "pointer"))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
mode = ptr_mode;
else
for (j = 0; j < NUM_MACHINE_MODES; j++)
if (!strcmp (p, GET_MODE_NAME (j)))
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
{
mode = (enum machine_mode) j;
break;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (mode == VOIDmode)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("unknown machine mode %qs", p);
return NULL_TREE;
}
valid_mode = false;
switch (GET_MODE_CLASS (mode))
{
case MODE_INT:
case MODE_PARTIAL_INT:
case MODE_FLOAT:
case MODE_DECIMAL_FLOAT:
valid_mode = targetm.scalar_mode_supported_p (mode);
break;
case MODE_COMPLEX_INT:
case MODE_COMPLEX_FLOAT:
valid_mode = targetm.scalar_mode_supported_p (GET_MODE_INNER (mode));
break;
case MODE_VECTOR_INT:
case MODE_VECTOR_FLOAT:
warning (OPT_Wattributes, "specifying vector types with "
"__attribute__ ((mode)) is deprecated");
warning (OPT_Wattributes,
"use __attribute__ ((vector_size)) instead");
valid_mode = vector_mode_valid_p (mode);
break;
default:
break;
}
if (!valid_mode)
{
error ("unable to emulate %qs", p);
return NULL_TREE;
}
if (POINTER_TYPE_P (type))
{
tree (*fn)(tree, enum machine_mode, bool);
if (!targetm.valid_pointer_mode (mode))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("invalid pointer mode %qs", p);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (TREE_CODE (type) == POINTER_TYPE)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
fn = build_pointer_type_for_mode;
else
fn = build_reference_type_for_mode;
typefm = fn (TREE_TYPE (type), mode, false);
}
else
typefm = lang_hooks.types.type_for_mode (mode, TYPE_UNSIGNED (type));
if (typefm == NULL_TREE)
{
error ("no data type for mode %qs", p);
return NULL_TREE;
}
else if (TREE_CODE (type) == ENUMERAL_TYPE)
{
/* For enumeral types, copy the precision from the integer
type returned above. If not an INTEGER_TYPE, we can't use
this mode for this type. */
if (TREE_CODE (typefm) != INTEGER_TYPE)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("cannot use mode %qs for enumeral types", p);
return NULL_TREE;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (flags & ATTR_FLAG_TYPE_IN_PLACE)
{
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
TYPE_PRECISION (type) = TYPE_PRECISION (typefm);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
typefm = type;
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
else
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* We cannot build a type variant, as there's code that assumes
that TYPE_MAIN_VARIANT has the same mode. This includes the
debug generators. Instead, create a subrange type. This
results in all of the enumeral values being emitted only once
in the original, and the subtype gets them by reference. */
if (TYPE_UNSIGNED (type))
typefm = make_unsigned_type (TYPE_PRECISION (typefm));
else
typefm = make_signed_type (TYPE_PRECISION (typefm));
TREE_TYPE (typefm) = type;
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
else if (VECTOR_MODE_P (mode)
? TREE_CODE (type) != TREE_CODE (TREE_TYPE (typefm))
: TREE_CODE (type) != TREE_CODE (typefm))
{
error ("mode %qs applied to inappropriate type", p);
return NULL_TREE;
}
*node = typefm;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
return NULL_TREE;
}
/* Handle a "section" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_section_attribute (tree *node, tree ARG_UNUSED (name), tree args,
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = *node;
if (targetm.have_named_sections)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
user_defined_section_attribute = true;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if ((TREE_CODE (decl) == FUNCTION_DECL
|| TREE_CODE (decl) == VAR_DECL)
&& TREE_CODE (TREE_VALUE (args)) == STRING_CST)
{
if (TREE_CODE (decl) == VAR_DECL
&& current_function_decl != NULL_TREE
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
&& !TREE_STATIC (decl))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
error ("%Jsection attribute cannot be specified for "
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
"local variables", decl);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
/* The decl may have already been given a section attribute
from a previous declaration. Ensure they match. */
else if (DECL_SECTION_NAME (decl) != NULL_TREE
&& strcmp (TREE_STRING_POINTER (DECL_SECTION_NAME (decl)),
TREE_STRING_POINTER (TREE_VALUE (args))) != 0)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("section of %q+D conflicts with previous declaration",
*node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
else
DECL_SECTION_NAME (decl) = TREE_VALUE (args);
}
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("section attribute not allowed for %q+D", *node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
}
else
{
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
error ("%Jsection attributes are not supported for this target", *node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "aligned" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_aligned_attribute (tree *node, tree ARG_UNUSED (name), tree args,
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
int flags, bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = NULL_TREE;
tree *type = NULL;
int is_type = 0;
tree align_expr = (args ? TREE_VALUE (args)
: size_int (BIGGEST_ALIGNMENT / BITS_PER_UNIT));
int i;
if (DECL_P (*node))
{
decl = *node;
type = &TREE_TYPE (decl);
is_type = TREE_CODE (*node) == TYPE_DECL;
}
else if (TYPE_P (*node))
type = node, is_type = 1;
if (TREE_CODE (align_expr) != INTEGER_CST)
{
error ("requested alignment is not a constant");
*no_add_attrs = true;
}
else if ((i = tree_log2 (align_expr)) == -1)
{
error ("requested alignment is not a power of 2");
*no_add_attrs = true;
}
else if (i > HOST_BITS_PER_INT - 2)
{
error ("requested alignment is too large");
*no_add_attrs = true;
}
else if (is_type)
{
/* If we have a TYPE_DECL, then copy the type, so that we
don't accidentally modify a builtin type. See pushdecl. */
if (decl && TREE_TYPE (decl) != error_mark_node
&& DECL_ORIGINAL_TYPE (decl) == NULL_TREE)
{
tree tt = TREE_TYPE (decl);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
*type = build_variant_type_copy (*type);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
DECL_ORIGINAL_TYPE (decl) = tt;
TYPE_NAME (*type) = decl;
TREE_USED (*type) = TREE_USED (decl);
TREE_TYPE (decl) = *type;
}
else if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
*type = build_variant_type_copy (*type);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
TYPE_ALIGN (*type) = (1 << i) * BITS_PER_UNIT;
TYPE_USER_ALIGN (*type) = 1;
}
gcc: upstream alignment cleanups. This solves GCC/32617 and contributes to reduce differences with Apple's gcc42. Complete some references in the ChangeLog while here. Obtained from: gcc 4.3 (rev. 126529, 126588; GPLv2) MFC after: 3 weeks
2013-11-29 18:46:02 +00:00
else if (! VAR_OR_FUNCTION_DECL_P (decl)
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
&& TREE_CODE (decl) != FIELD_DECL
&& TREE_CODE (decl) != LABEL_DECL)
/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("alignment may not be specified for %q+D", decl);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
gcc: upstream alignment cleanups. This solves GCC/32617 and contributes to reduce differences with Apple's gcc42. Complete some references in the ChangeLog while here. Obtained from: gcc 4.3 (rev. 126529, 126588; GPLv2) MFC after: 3 weeks
2013-11-29 18:46:02 +00:00
else if (TREE_CODE (decl) == FUNCTION_DECL
&& DECL_ALIGN (decl) > (1 << i) * BITS_PER_UNIT)
{
if (DECL_USER_ALIGN (decl))
error ("alignment for %q+D was previously specified as %d "
"and may not be decreased", decl,
DECL_ALIGN (decl) / BITS_PER_UNIT);
else
error ("alignment for %q+D must be at least %d", decl,
DECL_ALIGN (decl) / BITS_PER_UNIT);
*no_add_attrs = true;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
else
{
DECL_ALIGN (decl) = (1 << i) * BITS_PER_UNIT;
DECL_USER_ALIGN (decl) = 1;
}
return NULL_TREE;
}
/* Handle a "weak" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_weak_attribute (tree *node, tree name,
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
bool * ARG_UNUSED (no_add_attrs))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (*node) == FUNCTION_DECL
|| TREE_CODE (*node) == VAR_DECL)
declare_weak (*node);
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin weak types 5954418 */
else if (!DECL_P (*node)
/* If the weak flag can be associated with something else,
prefer that. */
&& (flags & (ATTR_FLAG_FUNCTION_NEXT
|ATTR_FLAG_DECL_NEXT
|ATTR_FLAG_ARRAY_NEXT)))
{
*no_add_attrs = true;
return tree_cons (name, args, NULL_TREE);
}
else if (! targetm.cxx.class_data_always_comdat ()
&& TREE_CODE (*node) == RECORD_TYPE)
{
/* Leave on the type for the C++ front end */
}
/* APPLE LOCAL end weak types 5954418 */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
else
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
/* Handle an "alias" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_alias_attribute (tree *node, tree name, tree args,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = *node;
if ((TREE_CODE (decl) == FUNCTION_DECL && DECL_INITIAL (decl))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
|| (TREE_CODE (decl) != FUNCTION_DECL
&& TREE_PUBLIC (decl) && !DECL_EXTERNAL (decl))
/* A static variable declaration is always a tentative definition,
but the alias is a non-tentative definition which overrides. */
|| (TREE_CODE (decl) != FUNCTION_DECL
&& ! TREE_PUBLIC (decl) && DECL_INITIAL (decl)))
{
error ("%q+D defined both normally and as an alias", decl);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Note that the very first time we process a nested declaration,
decl_function_context will not be set. Indeed, *would* never
be set except for the DECL_INITIAL/DECL_EXTERNAL frobbery that
we do below. After such frobbery, pushdecl would set the context.
In any case, this is never what we want. */
else if (decl_function_context (decl) == 0 && current_function_decl == NULL)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree id;
id = TREE_VALUE (args);
if (TREE_CODE (id) != STRING_CST)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("alias argument not a string");
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
return NULL_TREE;
}
id = get_identifier (TREE_STRING_POINTER (id));
/* This counts as a use of the object pointed to. */
TREE_USED (id) = 1;
if (TREE_CODE (decl) == FUNCTION_DECL)
DECL_INITIAL (decl) = error_mark_node;
else
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{
if (lookup_attribute ("weakref", DECL_ATTRIBUTES (decl)))
DECL_EXTERNAL (decl) = 1;
else
DECL_EXTERNAL (decl) = 0;
TREE_STATIC (decl) = 1;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "weakref" attribute; arguments as in struct
attribute_spec.handler. */
static tree
handle_weakref_attribute (tree *node, tree ARG_UNUSED (name), tree args,
int flags, bool *no_add_attrs)
{
tree attr = NULL_TREE;
/* We must ignore the attribute when it is associated with
local-scoped decls, since attribute alias is ignored and many
such symbols do not even have a DECL_WEAK field. */
if (decl_function_context (*node) || current_function_decl)
{
warning (OPT_Wattributes, "%qE attribute ignored", name);
*no_add_attrs = true;
return NULL_TREE;
}
/* The idea here is that `weakref("name")' mutates into `weakref,
alias("name")', and weakref without arguments, in turn,
implicitly adds weak. */
if (args)
{
attr = tree_cons (get_identifier ("alias"), args, attr);
attr = tree_cons (get_identifier ("weakref"), NULL_TREE, attr);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
decl_attributes (node, attr, flags);
}
else
{
if (lookup_attribute ("alias", DECL_ATTRIBUTES (*node)))
error ("%Jweakref attribute must appear before alias attribute",
*node);
/* Can't call declare_weak because it wants this to be TREE_PUBLIC,
and that isn't supported; and because it wants to add it to
the list of weak decls, which isn't helpful. */
DECL_WEAK (*node) = 1;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
return NULL_TREE;
}
/* Handle an "visibility" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_visibility_attribute (tree *node, tree name, tree args,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int ARG_UNUSED (flags),
bool *ARG_UNUSED (no_add_attrs))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = *node;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
tree id = TREE_VALUE (args);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
enum symbol_visibility vis;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TYPE_P (*node))
{
if (TREE_CODE (*node) == ENUMERAL_TYPE)
/* OK */;
else if (TREE_CODE (*node) != RECORD_TYPE && TREE_CODE (*node) != UNION_TYPE)
{
warning (OPT_Wattributes, "%qE attribute ignored on non-class types",
name);
return NULL_TREE;
}
else if (TYPE_FIELDS (*node))
{
error ("%qE attribute ignored because %qT is already defined",
name, *node);
return NULL_TREE;
}
}
else if (decl_function_context (decl) != 0 || !TREE_PUBLIC (decl))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
return NULL_TREE;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (TREE_CODE (id) != STRING_CST)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("visibility argument not a string");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
return NULL_TREE;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* If this is a type, set the visibility on the type decl. */
if (TYPE_P (decl))
{
decl = TYPE_NAME (decl);
if (!decl)
return NULL_TREE;
if (TREE_CODE (decl) == IDENTIFIER_NODE)
{
warning (OPT_Wattributes, "%qE attribute ignored on types",
name);
return NULL_TREE;
}
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (strcmp (TREE_STRING_POINTER (id), "default") == 0)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
vis = VISIBILITY_DEFAULT;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
else if (strcmp (TREE_STRING_POINTER (id), "internal") == 0)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
vis = VISIBILITY_INTERNAL;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
else if (strcmp (TREE_STRING_POINTER (id), "hidden") == 0)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
vis = VISIBILITY_HIDDEN;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
else if (strcmp (TREE_STRING_POINTER (id), "protected") == 0)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
vis = VISIBILITY_PROTECTED;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
else
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
{
error ("visibility argument must be one of \"default\", \"hidden\", \"protected\" or \"internal\"");
vis = VISIBILITY_DEFAULT;
}
if (DECL_VISIBILITY_SPECIFIED (decl)
&& vis != DECL_VISIBILITY (decl)
&& lookup_attribute ("visibility", (TYPE_P (*node)
? TYPE_ATTRIBUTES (*node)
: DECL_ATTRIBUTES (decl))))
error ("%qD redeclared with different visibility", decl);
DECL_VISIBILITY (decl) = vis;
DECL_VISIBILITY_SPECIFIED (decl) = 1;
/* Go ahead and attach the attribute to the node as well. This is needed
so we can determine whether we have VISIBILITY_DEFAULT because the
visibility was not specified, or because it was explicitly overridden
from the containing scope. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Determine the ELF symbol visibility for DECL, which is either a
variable or a function. It is an error to use this function if a
definition of DECL is not available in this translation unit.
Returns true if the final visibility has been determined by this
function; false if the caller is free to make additional
modifications. */
bool
c_determine_visibility (tree decl)
{
gcc_assert (TREE_CODE (decl) == VAR_DECL
|| TREE_CODE (decl) == FUNCTION_DECL);
/* If the user explicitly specified the visibility with an
attribute, honor that. DECL_VISIBILITY will have been set during
the processing of the attribute. We check for an explicit
attribute, rather than just checking DECL_VISIBILITY_SPECIFIED,
to distinguish the use of an attribute from the use of a "#pragma
GCC visibility push(...)"; in the latter case we still want other
considerations to be able to overrule the #pragma. */
if (lookup_attribute ("visibility", DECL_ATTRIBUTES (decl)))
return true;
/* Anything that is exported must have default visibility. */
if (TARGET_DLLIMPORT_DECL_ATTRIBUTES
&& lookup_attribute ("dllexport", DECL_ATTRIBUTES (decl)))
{
DECL_VISIBILITY (decl) = VISIBILITY_DEFAULT;
DECL_VISIBILITY_SPECIFIED (decl) = 1;
return true;
}
/* Set default visibility to whatever the user supplied with
visibility_specified depending on #pragma GCC visibility. */
if (!DECL_VISIBILITY_SPECIFIED (decl))
{
DECL_VISIBILITY (decl) = default_visibility;
DECL_VISIBILITY_SPECIFIED (decl) = visibility_options.inpragma;
}
return false;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Handle an "tls_model" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_tls_model_attribute (tree *node, tree name, tree args,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree id;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
tree decl = *node;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
enum tls_model kind;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
*no_add_attrs = true;
if (!DECL_THREAD_LOCAL_P (decl))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
return NULL_TREE;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
kind = DECL_TLS_MODEL (decl);
id = TREE_VALUE (args);
if (TREE_CODE (id) != STRING_CST)
{
error ("tls_model argument not a string");
return NULL_TREE;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!strcmp (TREE_STRING_POINTER (id), "local-exec"))
kind = TLS_MODEL_LOCAL_EXEC;
else if (!strcmp (TREE_STRING_POINTER (id), "initial-exec"))
kind = TLS_MODEL_INITIAL_EXEC;
else if (!strcmp (TREE_STRING_POINTER (id), "local-dynamic"))
kind = optimize ? TLS_MODEL_LOCAL_DYNAMIC : TLS_MODEL_GLOBAL_DYNAMIC;
else if (!strcmp (TREE_STRING_POINTER (id), "global-dynamic"))
kind = TLS_MODEL_GLOBAL_DYNAMIC;
else
error ("tls_model argument must be one of \"local-exec\", \"initial-exec\", \"local-dynamic\" or \"global-dynamic\"");
DECL_TLS_MODEL (decl) = kind;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
/* Handle a "no_instrument_function" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_no_instrument_function_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = *node;
if (TREE_CODE (decl) != FUNCTION_DECL)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("%J%qE attribute applies only to functions", decl, name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
else if (DECL_INITIAL (decl))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("%Jcan%'t set %qE attribute after definition", decl, name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
else
DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (decl) = 1;
return NULL_TREE;
}
/* Handle a "malloc" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_malloc_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (*node) == FUNCTION_DECL
&& POINTER_TYPE_P (TREE_TYPE (TREE_TYPE (*node))))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
DECL_IS_MALLOC (*node) = 1;
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "returns_twice" attribute; arguments as in
struct attribute_spec.handler. */
static tree
handle_returns_twice_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
{
if (TREE_CODE (*node) == FUNCTION_DECL)
DECL_IS_RETURNS_TWICE (*node) = 1;
else
{
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
/* Handle a "no_limit_stack" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_no_limit_stack_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree decl = *node;
if (TREE_CODE (decl) != FUNCTION_DECL)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("%J%qE attribute applies only to functions", decl, name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
else if (DECL_INITIAL (decl))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("%Jcan%'t set %qE attribute after definition", decl, name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
else
DECL_NO_LIMIT_STACK (decl) = 1;
return NULL_TREE;
}
/* Handle a "pure" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_pure_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (TREE_CODE (*node) == FUNCTION_DECL)
DECL_IS_PURE (*node) = 1;
/* ??? TODO: Support types. */
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Handle a "no vops" attribute; arguments as in
struct attribute_spec.handler. */
static tree
handle_novops_attribute (tree *node, tree ARG_UNUSED (name),
tree ARG_UNUSED (args), int ARG_UNUSED (flags),
bool *ARG_UNUSED (no_add_attrs))
{
gcc_assert (TREE_CODE (*node) == FUNCTION_DECL);
DECL_IS_NOVOPS (*node) = 1;
return NULL_TREE;
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Handle a "deprecated" attribute; arguments as in
struct attribute_spec.handler. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_deprecated_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args), int flags,
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree type = NULL_TREE;
int warn = 0;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree what = NULL_TREE;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (DECL_P (*node))
{
tree decl = *node;
type = TREE_TYPE (decl);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (TREE_CODE (decl) == TYPE_DECL
|| TREE_CODE (decl) == PARM_DECL
|| TREE_CODE (decl) == VAR_DECL
|| TREE_CODE (decl) == FUNCTION_DECL
|| TREE_CODE (decl) == FIELD_DECL)
TREE_DEPRECATED (decl) = 1;
else
warn = 1;
}
else if (TYPE_P (*node))
{
if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
*node = build_variant_type_copy (*node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
TREE_DEPRECATED (*node) = 1;
type = *node;
}
else
warn = 1;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (warn)
{
*no_add_attrs = true;
if (type && TYPE_NAME (type))
{
if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
what = TYPE_NAME (*node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
&& DECL_NAME (TYPE_NAME (type)))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
what = DECL_NAME (TYPE_NAME (type));
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
if (what)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored for %qE", name, what);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
else
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
return NULL_TREE;
}
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
/* APPLE LOCAL begin "unavailable" attribute (Radar 2809697) --ilr */
/* Handle a "unavailable" attribute; arguments as in
struct attribute_spec.handler. */
static tree
handle_unavailable_attribute (tree *node, tree name,
tree args ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED,
bool *no_add_attrs)
{
tree type = NULL_TREE;
int warn = 0;
const char *what = NULL;
if (DECL_P (*node))
{
tree decl = *node;
type = TREE_TYPE (decl);
if (TREE_CODE (decl) == TYPE_DECL
|| TREE_CODE (decl) == PARM_DECL
|| TREE_CODE (decl) == VAR_DECL
gcc: Fix issue with "unavailable" attribute. While here, point where we dropped the support for objc from r260014. MFC after: 3 weeks
2013-12-30 20:24:05 +00:00
|| TREE_CODE (decl) == FUNCTION_DECL
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 3803157 - objc attribute */
|| TREE_CODE (decl) == FIELD_DECL
|| objc_method_decl (TREE_CODE (decl)))
/* APPLE LOCAL end radar 3803157 - objc attribute */
gcc: Add support for label attributes and "unavailable" attribute. Apple GCC has extensions to support for both label attributes and an "unavailable" attribute. These are critical for objc but are also useful in regular C/C++. Apparently at least the label attributes might have found their way to upstream GCC but the code doesn't seem available on the GPLv2 tree so we are taking the code directly from Apple. To make this clearer we are preserving the annoying "APPLE LOCAL" tags and the ChangeLogs when they are available. Obtained from: Apple GCC 4.2 - 5531 MFC after: 3 weeks
2013-12-28 20:30:31 +00:00
{
TREE_UNAVAILABLE (decl) = 1;
}
else
warn = 1;
}
else if (TYPE_P (*node))
{
if (!(flags & (int) ATTR_FLAG_TYPE_IN_PLACE))
*node = build_variant_type_copy (*node);
TREE_UNAVAILABLE (*node) = 1;
type = *node;
}
else
warn = 1;
if (warn)
{
*no_add_attrs = true;
if (type && TYPE_NAME (type))
{
if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
what = IDENTIFIER_POINTER (TYPE_NAME (*node));
else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
&& DECL_NAME (TYPE_NAME (type)))
what = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
}
if (what)
warning (0, "`%s' attribute ignored for `%s'",
IDENTIFIER_POINTER (name), what);
else
warning (0, "`%s' attribute ignored", IDENTIFIER_POINTER (name));
}
return NULL_TREE;
}
/* APPLE LOCAL end "unavailable" attribute --ilr */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Handle a "vector_size" attribute; arguments as in
struct attribute_spec.handler. */
static tree
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
handle_vector_size_attribute (tree *node, tree name, tree args,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int ARG_UNUSED (flags),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
unsigned HOST_WIDE_INT vecsize, nunits;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
enum machine_mode orig_mode;
tree type = *node, new_type, size;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
size = TREE_VALUE (args);
if (!host_integerp (size, 1))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
/* Get the vector size (in bytes). */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
vecsize = tree_low_cst (size, 1);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* We need to provide for vector pointers, vector arrays, and
functions returning vectors. For example:
__attribute__((vector_size(16))) short *foo;
In this case, the mode is SI, but the type being modified is
HI, so we need to look further. */
while (POINTER_TYPE_P (type)
|| TREE_CODE (type) == FUNCTION_TYPE
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
|| TREE_CODE (type) == METHOD_TYPE
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
|| TREE_CODE (type) == ARRAY_TYPE)
type = TREE_TYPE (type);
/* Get the mode of the type being modified. */
orig_mode = TYPE_MODE (type);
if (TREE_CODE (type) == RECORD_TYPE
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
|| TREE_CODE (type) == UNION_TYPE
|| TREE_CODE (type) == VECTOR_TYPE
|| (!SCALAR_FLOAT_MODE_P (orig_mode)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
&& GET_MODE_CLASS (orig_mode) != MODE_INT)
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
|| !host_integerp (TYPE_SIZE_UNIT (type), 1))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("invalid vector type for attribute %qE", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (vecsize % tree_low_cst (TYPE_SIZE_UNIT (type), 1))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("vector size not an integral multiple of component size");
return NULL;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (vecsize == 0)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("zero vector size");
return NULL;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Calculate how many units fit in the vector. */
nunits = vecsize / tree_low_cst (TYPE_SIZE_UNIT (type), 1);
if (nunits & (nunits - 1))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("number of components of the vector not a power of two");
return NULL_TREE;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
new_type = build_vector_type (type, nunits);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
/* Build back pointers if needed. */
Merge conflicts for GCC 3.4.4.
2005-06-03 04:02:20 +00:00
*node = reconstruct_complex_type (*node, new_type);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return NULL_TREE;
}
/* Handle the "nonnull" attribute. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_nonnull_attribute (tree *node, tree ARG_UNUSED (name),
tree args, int ARG_UNUSED (flags),
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree type = *node;
unsigned HOST_WIDE_INT attr_arg_num;
/* If no arguments are specified, all pointer arguments should be
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
non-null. Verify a full prototype is given so that the arguments
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
will have the correct types when we actually check them later. */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!args)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!TYPE_ARG_TYPES (type))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
error ("nonnull attribute without arguments on a non-prototype");
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
*no_add_attrs = true;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
return NULL_TREE;
}
/* Argument list specified. Verify that each argument number references
a pointer argument. */
for (attr_arg_num = 1; args; args = TREE_CHAIN (args))
{
tree argument;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
unsigned HOST_WIDE_INT arg_num = 0, ck_num;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!get_nonnull_operand (TREE_VALUE (args), &arg_num))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("nonnull argument has invalid operand number (argument %lu)",
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
(unsigned long) attr_arg_num);
*no_add_attrs = true;
return NULL_TREE;
}
argument = TYPE_ARG_TYPES (type);
if (argument)
{
for (ck_num = 1; ; ck_num++)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!argument || ck_num == arg_num)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
break;
argument = TREE_CHAIN (argument);
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!argument
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
|| TREE_CODE (TREE_VALUE (argument)) == VOID_TYPE)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("nonnull argument with out-of-range operand number (argument %lu, operand %lu)",
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
(unsigned long) attr_arg_num, (unsigned long) arg_num);
*no_add_attrs = true;
return NULL_TREE;
}
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin blocks 5925781 */
if (TREE_CODE (TREE_VALUE (argument)) != POINTER_TYPE &&
TREE_CODE (TREE_VALUE (argument)) != BLOCK_POINTER_TYPE)
/* APPLE LOCAL end blocks 5925781 */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("nonnull argument references non-pointer operand (argument %lu, operand %lu)",
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
(unsigned long) attr_arg_num, (unsigned long) arg_num);
*no_add_attrs = true;
return NULL_TREE;
}
}
}
return NULL_TREE;
}
/* Check the argument list of a function call for null in argument slots
that are marked as requiring a non-null pointer argument. */
static void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
check_function_nonnull (tree attrs, tree params)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
tree a, args, param;
int param_num;
for (a = attrs; a; a = TREE_CHAIN (a))
{
if (is_attribute_p ("nonnull", TREE_PURPOSE (a)))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
args = TREE_VALUE (a);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Walk the argument list. If we encounter an argument number we
should check for non-null, do it. If the attribute has no args,
then every pointer argument is checked (in which case the check
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
for pointer type is done in check_nonnull_arg). */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
for (param = params, param_num = 1; ;
param_num++, param = TREE_CHAIN (param))
{
if (!param)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
break;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!args || nonnull_check_p (args, param_num))
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
check_function_arguments_recurse (check_nonnull_arg, NULL,
TREE_VALUE (param),
param_num);
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
}
}
}
}
/* Check that the Nth argument of a function call (counting backwards
from the end) is a (pointer)0. */
static void
check_function_sentinel (tree attrs, tree params, tree typelist)
{
tree attr = lookup_attribute ("sentinel", attrs);
if (attr)
{
/* Skip over the named arguments. */
while (typelist && params)
{
typelist = TREE_CHAIN (typelist);
params = TREE_CHAIN (params);
}
if (typelist || !params)
warning (OPT_Wformat,
"not enough variable arguments to fit a sentinel");
else
{
tree sentinel, end;
unsigned pos = 0;
if (TREE_VALUE (attr))
{
tree p = TREE_VALUE (TREE_VALUE (attr));
pos = TREE_INT_CST_LOW (p);
}
sentinel = end = params;
/* Advance `end' ahead of `sentinel' by `pos' positions. */
while (pos > 0 && TREE_CHAIN (end))
{
pos--;
end = TREE_CHAIN (end);
}
if (pos > 0)
{
warning (OPT_Wformat,
"not enough variable arguments to fit a sentinel");
return;
}
/* Now advance both until we find the last parameter. */
while (TREE_CHAIN (end))
{
end = TREE_CHAIN (end);
sentinel = TREE_CHAIN (sentinel);
}
/* Validate the sentinel. */
if ((!POINTER_TYPE_P (TREE_TYPE (TREE_VALUE (sentinel)))
|| !integer_zerop (TREE_VALUE (sentinel)))
/* Although __null (in C++) is only an integer we allow it
nevertheless, as we are guaranteed that it's exactly
as wide as a pointer, and we don't want to force
users to cast the NULL they have written there.
We warn with -Wstrict-null-sentinel, though. */
&& (warn_strict_null_sentinel
|| null_node != TREE_VALUE (sentinel)))
warning (OPT_Wformat, "missing sentinel in function call");
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
}
}
/* Helper for check_function_nonnull; given a list of operands which
must be non-null in ARGS, determine if operand PARAM_NUM should be
checked. */
static bool
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
nonnull_check_p (tree args, unsigned HOST_WIDE_INT param_num)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
unsigned HOST_WIDE_INT arg_num = 0;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
for (; args; args = TREE_CHAIN (args))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
bool found = get_nonnull_operand (TREE_VALUE (args), &arg_num);
gcc_assert (found);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (arg_num == param_num)
return true;
}
return false;
}
/* Check that the function argument PARAM (which is operand number
PARAM_NUM) is non-null. This is called by check_function_nonnull
via check_function_arguments_recurse. */
static void
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
check_nonnull_arg (void * ARG_UNUSED (ctx), tree param,
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
unsigned HOST_WIDE_INT param_num)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
/* Just skip checking the argument if it's not a pointer. This can
happen if the "nonnull" attribute was given without an operand
list (which means to check every pointer argument). */
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin blocks 5925781 */
if (TREE_CODE (TREE_TYPE (param)) != POINTER_TYPE &&
TREE_CODE (TREE_TYPE (param)) != BLOCK_POINTER_TYPE)
/* APPLE LOCAL end blocks 5925781 */
return;
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (integer_zerop (param))
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wnonnull, "null argument where non-null required "
"(argument %lu)", (unsigned long) param_num);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
}
/* Helper for nonnull attribute handling; fetch the operand number
from the attribute argument list. */
static bool
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
get_nonnull_operand (tree arg_num_expr, unsigned HOST_WIDE_INT *valp)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Verify the arg number is a constant. */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
if (TREE_CODE (arg_num_expr) != INTEGER_CST
|| TREE_INT_CST_HIGH (arg_num_expr) != 0)
return false;
*valp = TREE_INT_CST_LOW (arg_num_expr);
return true;
}
/* Handle a "nothrow" attribute; arguments as in
struct attribute_spec.handler. */
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
handle_nothrow_attribute (tree *node, tree name, tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
if (TREE_CODE (*node) == FUNCTION_DECL)
TREE_NOTHROW (*node) = 1;
/* ??? TODO: Support types. */
else
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Handle a "cleanup" attribute; arguments as in
struct attribute_spec.handler. */
static tree
handle_cleanup_attribute (tree *node, tree name, tree args,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
int ARG_UNUSED (flags), bool *no_add_attrs)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
tree decl = *node;
tree cleanup_id, cleanup_decl;
/* ??? Could perhaps support cleanups on TREE_STATIC, much like we do
for global destructors in C++. This requires infrastructure that
we don't have generically at the moment. It's also not a feature
we'd be missing too much, since we do have attribute constructor. */
if (TREE_CODE (decl) != VAR_DECL || TREE_STATIC (decl))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
*no_add_attrs = true;
return NULL_TREE;
}
/* Verify that the argument is a function in scope. */
/* ??? We could support pointers to functions here as well, if
that was considered desirable. */
cleanup_id = TREE_VALUE (args);
if (TREE_CODE (cleanup_id) != IDENTIFIER_NODE)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("cleanup argument not an identifier");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
*no_add_attrs = true;
return NULL_TREE;
}
cleanup_decl = lookup_name (cleanup_id);
if (!cleanup_decl || TREE_CODE (cleanup_decl) != FUNCTION_DECL)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
error ("cleanup argument not a function");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
*no_add_attrs = true;
return NULL_TREE;
}
/* That the function has proper type is checked with the
eventual call to build_function_call. */
return NULL_TREE;
}
/* Handle a "warn_unused_result" attribute. No special handling. */
static tree
handle_warn_unused_result_attribute (tree *node, tree name,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ARG_UNUSED (args),
int ARG_UNUSED (flags), bool *no_add_attrs)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
/* Ignore the attribute for functions not returning any value. */
if (VOID_TYPE_P (TREE_TYPE (*node)))
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
warning (OPT_Wattributes, "%qE attribute ignored", name);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
*no_add_attrs = true;
}
return NULL_TREE;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 5932809 - copyable byref blocks */
/* Handle "blocks" attribute. */
static tree
handle_blocks_attribute (tree *node, tree name,
tree args,
int ARG_UNUSED (flags), bool *no_add_attrs)
{
tree arg_ident;
/* APPLE LOCAL radar 6217257 */
tree type;
*no_add_attrs = true;
if (!(*node) || TREE_CODE (*node) != VAR_DECL)
{
error ("__block attribute can be specified on variables only");
return NULL_TREE;
}
arg_ident = TREE_VALUE (args);
gcc_assert (TREE_CODE (arg_ident) == IDENTIFIER_NODE);
/* APPLE LOCAL radar 6096219 */
if (strcmp (IDENTIFIER_POINTER (arg_ident), "byref"))
{
/* APPLE LOCAL radar 6096219 */
warning (OPT_Wattributes, "Only \"byref\" is allowed - %qE attribute ignored",
name);
return NULL_TREE;
}
/* APPLE LOCAL begin radar 6217257 */
type = TREE_TYPE (*node);
if (TREE_CODE (type) == ERROR_MARK)
return NULL_TREE;
if (TREE_CODE (type) == ARRAY_TYPE)
{
if (!TYPE_SIZE (type) || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
{
error ("__block not allowed on a variable length array declaration");
return NULL_TREE;
}
}
/* APPLE LOCAL end radar 6217257 */
COPYABLE_BYREF_LOCAL_VAR (*node) = 1;
COPYABLE_BYREF_LOCAL_NONPOD (*node) = block_requires_copying (*node);
return NULL_TREE;
}
/* APPLE LOCAL end radar 5932809 - copyable byref blocks */
/* APPLE LOCAL begin blocks 6040305 */
/* This routine builds:
*(void **)(EXP+20) expression which references the object pointer.
*/
tree
build_indirect_object_id_exp (tree exp)
{
tree dst_obj;
int int_size = int_cst_value (TYPE_SIZE_UNIT (unsigned_type_node));
int offset;
/* dst->object In thid case 'object' is the field
of the object passed offset by: void * + void* + int + int + void* + void *
This must match definition of Block_byref structs. */
/* APPLE LOCAL radar 6244520 */
offset = GET_MODE_SIZE (Pmode) + GET_MODE_SIZE (Pmode)
+ int_size + int_size + GET_MODE_SIZE (Pmode) +
GET_MODE_SIZE (Pmode);
dst_obj = build2 (PLUS_EXPR, ptr_type_node, exp,
build_int_cst (NULL_TREE, offset));
/* APPLE LOCAL begin radar 6180456 */
/* Type case to: 'void **' */
dst_obj = build_c_cast (build_pointer_type (ptr_type_node), dst_obj);
dst_obj = build_indirect_ref (dst_obj, "unary *");
/* APPLE LOCAL end radar 6180456 */
return dst_obj;
}
/* This routine builds call to:
_Block_object_dispose(VAR_DECL.__forwarding, BLOCK_FIELD_IS_BYREF);
and adds it to the statement list.
*/
tree
build_block_byref_release_exp (tree var_decl)
{
tree exp = var_decl, call_exp;
tree type = TREE_TYPE (var_decl);
/* __block variables imported into Blocks are not _Block_object_dispose()
from within the Block statement itself; otherwise, each envokation of
the block causes a release. Make sure to release __block variables declared
and used locally in the block though. */
if (cur_block
&& (BLOCK_DECL_COPIED (var_decl) || BLOCK_DECL_BYREF (var_decl)))
return NULL_TREE;
if (BLOCK_DECL_BYREF (var_decl)) {
/* This is a "struct Block_byref_X *" type. Get its pointee. */
gcc_assert (POINTER_TYPE_P (type));
type = TREE_TYPE (type);
exp = build_indirect_ref (exp, "unary *");
}
TREE_USED (var_decl) = 1;
/* Declare: _Block_object_dispose(void*, BLOCK_FIELD_IS_BYREF) if not done already. */
exp = build_component_ref (exp, get_identifier ("__forwarding"));
call_exp = build_block_object_dispose_call_exp (exp, BLOCK_FIELD_IS_BYREF);
return call_exp;
}
/* APPLE LOCAL end blocks 6040305 */
/* APPLE LOCAL begin radar 5803600 */
/** add_block_global_byref_list - Adds global variable decl to the list of
byref global declarations in the current block.
*/
void add_block_global_byref_list (tree decl)
{
cur_block->block_byref_global_decl_list =
tree_cons (NULL_TREE, decl, cur_block->block_byref_global_decl_list);
}
/** in_block_global_byref_list - returns TRUE if global variable is
in the list of 'byref' declarations.
*/
bool in_block_global_byref_list (tree decl)
{
tree chain;
if (TREE_STATIC (decl)) {
for (chain = cur_block->block_byref_global_decl_list; chain;
chain = TREE_CHAIN (chain))
if (TREE_VALUE (chain) == decl)
return true;
}
return false;
}
/* APPLE LOCAL end radar 5803600 */
/* APPLE LOCAL begin radar 6160536 */
tree
build_block_helper_name (int unique_count)
{
char *buf;
if (!current_function_decl)
{
/* APPLE LOCAL begin radar 6411649 */
static int global_count;
buf = (char *)alloca (32);
sprintf (buf, "__block_global_%d", ++global_count);
/* APPLE LOCAL end radar 6411649 */
}
else
{
tree outer_decl = current_function_decl;
/* APPLE LOCAL begin radar 6169580 */
while (outer_decl &&
DECL_CONTEXT (outer_decl) && TREE_CODE (DECL_CONTEXT (outer_decl)) == FUNCTION_DECL)
/* APPLE LOCAL end radar 6169580 */
outer_decl = DECL_CONTEXT (outer_decl);
/* APPLE LOCAL begin radar 6411649 */
if (!unique_count)
unique_count = ++DECL_STRUCT_FUNCTION(outer_decl)->unqiue_block_number;
/* APPLE LOCAL end radar 6411649 */
buf = (char *)alloca (IDENTIFIER_LENGTH (DECL_NAME (outer_decl)) + 32);
sprintf (buf, "__%s_block_invoke_%d",
IDENTIFIER_POINTER (DECL_NAME (outer_decl)), unique_count);
}
return get_identifier (buf);
}
/* APPLE LOCAL end radar 6160536 */
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Handle a "sentinel" attribute. */
static tree
handle_sentinel_attribute (tree *node, tree name, tree args,
int ARG_UNUSED (flags), bool *no_add_attrs)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree params = TYPE_ARG_TYPES (*node);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (!params)
{
warning (OPT_Wattributes,
"%qE attribute requires prototypes with named arguments", name);
*no_add_attrs = true;
}
else
{
while (TREE_CHAIN (params))
params = TREE_CHAIN (params);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (VOID_TYPE_P (TREE_VALUE (params)))
{
warning (OPT_Wattributes,
"%qE attribute only applies to variadic functions", name);
*no_add_attrs = true;
}
}
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (args)
{
tree position = TREE_VALUE (args);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (TREE_CODE (position) != INTEGER_CST)
{
warning (0, "requested position is not an integer constant");
*no_add_attrs = true;
}
else
{
if (tree_int_cst_lt (position, integer_zero_node))
{
warning (0, "requested position is less than zero");
*no_add_attrs = true;
}
}
}
return NULL_TREE;
}
/* Check for valid arguments being passed to a function. */
void
check_function_arguments (tree attrs, tree params, tree typelist)
{
/* Check for null being passed in a pointer argument that must be
non-null. We also need to do this if format checking is enabled. */
if (warn_nonnull)
check_function_nonnull (attrs, params);
/* Check for errors in format strings. */
if (warn_format || warn_missing_format_attribute)
check_function_format (attrs, params);
if (warn_format)
check_function_sentinel (attrs, params, typelist);
}
/* Generic argument checking recursion routine. PARAM is the argument to
be checked. PARAM_NUM is the number of the argument. CALLBACK is invoked
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
once the argument is resolved. CTX is context for the callback. */
void
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
check_function_arguments_recurse (void (*callback)
(void *, tree, unsigned HOST_WIDE_INT),
void *ctx, tree param,
unsigned HOST_WIDE_INT param_num)
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if ((TREE_CODE (param) == NOP_EXPR || TREE_CODE (param) == CONVERT_EXPR)
&& (TYPE_PRECISION (TREE_TYPE (param))
== TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (param, 0)))))
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
{
/* Strip coercion. */
check_function_arguments_recurse (callback, ctx,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
TREE_OPERAND (param, 0), param_num);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return;
}
if (TREE_CODE (param) == CALL_EXPR)
{
tree type = TREE_TYPE (TREE_TYPE (TREE_OPERAND (param, 0)));
tree attrs;
bool found_format_arg = false;
/* See if this is a call to a known internationalization function
that modifies a format arg. Such a function may have multiple
format_arg attributes (for example, ngettext). */
for (attrs = TYPE_ATTRIBUTES (type);
attrs;
attrs = TREE_CHAIN (attrs))
if (is_attribute_p ("format_arg", TREE_PURPOSE (attrs)))
{
tree inner_args;
tree format_num_expr;
int format_num;
int i;
/* Extract the argument number, which was previously checked
to be valid. */
format_num_expr = TREE_VALUE (TREE_VALUE (attrs));
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc_assert (TREE_CODE (format_num_expr) == INTEGER_CST
&& !TREE_INT_CST_HIGH (format_num_expr));
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
format_num = TREE_INT_CST_LOW (format_num_expr);
for (inner_args = TREE_OPERAND (param, 1), i = 1;
inner_args != 0;
inner_args = TREE_CHAIN (inner_args), i++)
if (i == format_num)
{
check_function_arguments_recurse (callback, ctx,
TREE_VALUE (inner_args),
param_num);
found_format_arg = true;
break;
}
}
/* If we found a format_arg attribute and did a recursive check,
we are done with checking this argument. Otherwise, we continue
and this will be considered a non-literal. */
if (found_format_arg)
return;
}
if (TREE_CODE (param) == COND_EXPR)
{
/* Check both halves of the conditional expression. */
check_function_arguments_recurse (callback, ctx,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
TREE_OPERAND (param, 1), param_num);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
check_function_arguments_recurse (callback, ctx,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
TREE_OPERAND (param, 2), param_num);
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
return;
}
(*callback) (ctx, param, param_num);
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
/* Function to help qsort sort FIELD_DECLs by name order. */
int
field_decl_cmp (const void *x_p, const void *y_p)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
const tree *const x = (const tree *const) x_p;
const tree *const y = (const tree *const) y_p;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (DECL_NAME (*x) == DECL_NAME (*y))
/* A nontype is "greater" than a type. */
return (TREE_CODE (*y) == TYPE_DECL) - (TREE_CODE (*x) == TYPE_DECL);
if (DECL_NAME (*x) == NULL_TREE)
return -1;
if (DECL_NAME (*y) == NULL_TREE)
return 1;
if (DECL_NAME (*x) < DECL_NAME (*y))
return -1;
return 1;
}
static struct {
gt_pointer_operator new_value;
void *cookie;
} resort_data;
/* This routine compares two fields like field_decl_cmp but using the
pointer operator in resort_data. */
static int
resort_field_decl_cmp (const void *x_p, const void *y_p)
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
const tree *const x = (const tree *const) x_p;
const tree *const y = (const tree *const) y_p;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
if (DECL_NAME (*x) == DECL_NAME (*y))
/* A nontype is "greater" than a type. */
return (TREE_CODE (*y) == TYPE_DECL) - (TREE_CODE (*x) == TYPE_DECL);
if (DECL_NAME (*x) == NULL_TREE)
return -1;
if (DECL_NAME (*y) == NULL_TREE)
return 1;
{
tree d1 = DECL_NAME (*x);
tree d2 = DECL_NAME (*y);
resort_data.new_value (&d1, resort_data.cookie);
resort_data.new_value (&d2, resort_data.cookie);
if (d1 < d2)
return -1;
}
return 1;
}
/* Resort DECL_SORTED_FIELDS because pointers have been reordered. */
void
resort_sorted_fields (void *obj,
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
void * ARG_UNUSED (orig_obj),
gt_pointer_operator new_value,
void *cookie)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
struct sorted_fields_type *sf = (struct sorted_fields_type *) obj;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
resort_data.new_value = new_value;
resort_data.cookie = cookie;
qsort (&sf->elts[0], sf->len, sizeof (tree),
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
resort_field_decl_cmp);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Subroutine of c_parse_error.
Return the result of concatenating LHS and RHS. RHS is really
a string literal, its first character is indicated by RHS_START and
RHS_SIZE is its length (including the terminating NUL character).
The caller is responsible for deleting the returned pointer. */
static char *
catenate_strings (const char *lhs, const char *rhs_start, int rhs_size)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
const int lhs_size = strlen (lhs);
char *result = XNEWVEC (char, lhs_size + rhs_size);
strncpy (result, lhs, lhs_size);
strncpy (result + lhs_size, rhs_start, rhs_size);
return result;
}
/* Issue the error given by GMSGID, indicating that it occurred before
TOKEN, which had the associated VALUE. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
void
c_parse_error (const char *gmsgid, enum cpp_ttype token, tree value)
{
#define catenate_messages(M1, M2) catenate_strings ((M1), (M2), sizeof (M2))
char *message = NULL;
if (token == CPP_EOF)
message = catenate_messages (gmsgid, " at end of input");
else if (token == CPP_CHAR || token == CPP_WCHAR)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
unsigned int val = TREE_INT_CST_LOW (value);
const char *const ell = (token == CPP_CHAR) ? "" : "L";
if (val <= UCHAR_MAX && ISGRAPH (val))
message = catenate_messages (gmsgid, " before %s'%c'");
else
message = catenate_messages (gmsgid, " before %s'\\x%x'");
error (message, ell, val);
free (message);
message = NULL;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
else if (token == CPP_STRING || token == CPP_WSTRING)
message = catenate_messages (gmsgid, " before string constant");
else if (token == CPP_NUMBER)
message = catenate_messages (gmsgid, " before numeric constant");
else if (token == CPP_NAME)
{
message = catenate_messages (gmsgid, " before %qE");
error (message, value);
free (message);
message = NULL;
}
else if (token == CPP_PRAGMA)
message = catenate_messages (gmsgid, " before %<#pragma%>");
else if (token == CPP_PRAGMA_EOL)
message = catenate_messages (gmsgid, " before end of line");
else if (token < N_TTYPES)
{
message = catenate_messages (gmsgid, " before %qs token");
error (message, cpp_type2name (token));
free (message);
message = NULL;
}
else
gcc: clean some warnings from -Wformat-security Obtained from: Apple GCC 4.2 - 5646 (Radar 5764921) MFC after: 1 week
2013-12-20 20:57:13 +00:00
error (gmsgid, "");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
if (message)
{
gcc: clean some warnings from -Wformat-security Obtained from: Apple GCC 4.2 - 5646 (Radar 5764921) MFC after: 1 week
2013-12-20 20:57:13 +00:00
error (message, "");
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
free (message);
}
#undef catenate_messages
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Walk a gimplified function and warn for functions whose return value is
ignored and attribute((warn_unused_result)) is set. This is done before
inlining, so we don't have to worry about that. */
void
c_warn_unused_result (tree *top_p)
{
tree t = *top_p;
tree_stmt_iterator i;
tree fdecl, ftype;
switch (TREE_CODE (t))
{
case STATEMENT_LIST:
for (i = tsi_start (*top_p); !tsi_end_p (i); tsi_next (&i))
c_warn_unused_result (tsi_stmt_ptr (i));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
break;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
case COND_EXPR:
c_warn_unused_result (&COND_EXPR_THEN (t));
c_warn_unused_result (&COND_EXPR_ELSE (t));
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
break;
case BIND_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
c_warn_unused_result (&BIND_EXPR_BODY (t));
break;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
case TRY_FINALLY_EXPR:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
case TRY_CATCH_EXPR:
c_warn_unused_result (&TREE_OPERAND (t, 0));
c_warn_unused_result (&TREE_OPERAND (t, 1));
break;
case CATCH_EXPR:
c_warn_unused_result (&CATCH_BODY (t));
break;
case EH_FILTER_EXPR:
c_warn_unused_result (&EH_FILTER_FAILURE (t));
break;
case CALL_EXPR:
if (TREE_USED (t))
break;
/* This is a naked call, as opposed to a CALL_EXPR nested inside
a MODIFY_EXPR. All calls whose value is ignored should be
represented like this. Look for the attribute. */
fdecl = get_callee_fndecl (t);
if (fdecl)
ftype = TREE_TYPE (fdecl);
else
{
ftype = TREE_TYPE (TREE_OPERAND (t, 0));
/* Look past pointer-to-function to the function type itself. */
ftype = TREE_TYPE (ftype);
}
if (lookup_attribute ("warn_unused_result", TYPE_ATTRIBUTES (ftype)))
{
if (fdecl)
warning (0, "%Hignoring return value of %qD, "
"declared with attribute warn_unused_result",
EXPR_LOCUS (t), fdecl);
else
warning (0, "%Hignoring return value of function "
"declared with attribute warn_unused_result",
EXPR_LOCUS (t));
}
break;
default:
/* Not a container, not a call, or a call whose value is used. */
break;
}
}
/* Convert a character from the host to the target execution character
set. cpplib handles this, mostly. */
HOST_WIDE_INT
c_common_to_target_charset (HOST_WIDE_INT c)
{
/* Character constants in GCC proper are sign-extended under -fsigned-char,
zero-extended under -fno-signed-char. cpplib insists that characters
and character constants are always unsigned. Hence we must convert
back and forth. */
cppchar_t uc = ((cppchar_t)c) & ((((cppchar_t)1) << CHAR_BIT)-1);
uc = cpp_host_to_exec_charset (parse_in, uc);
if (flag_signed_char)
return ((HOST_WIDE_INT)uc) << (HOST_BITS_PER_WIDE_INT - CHAR_TYPE_SIZE)
>> (HOST_BITS_PER_WIDE_INT - CHAR_TYPE_SIZE);
else
return uc;
}
/* Build the result of __builtin_offsetof. EXPR is a nested sequence of
component references, with STOP_REF, or alternatively an INDIRECT_REF of
NULL, at the bottom; much like the traditional rendering of offsetof as a
macro. Returns the folded and properly cast result. */
static tree
fold_offsetof_1 (tree expr, tree stop_ref)
{
enum tree_code code = PLUS_EXPR;
tree base, off, t;
if (expr == stop_ref && TREE_CODE (expr) != ERROR_MARK)
return size_zero_node;
switch (TREE_CODE (expr))
{
case ERROR_MARK:
return expr;
case VAR_DECL:
error ("cannot apply %<offsetof%> to static data member %qD", expr);
return error_mark_node;
case CALL_EXPR:
error ("cannot apply %<offsetof%> when %<operator[]%> is overloaded");
return error_mark_node;
case INTEGER_CST:
gcc_assert (integer_zerop (expr));
return size_zero_node;
case NOP_EXPR:
case INDIRECT_REF:
base = fold_offsetof_1 (TREE_OPERAND (expr, 0), stop_ref);
gcc_assert (base == error_mark_node || base == size_zero_node);
return base;
case COMPONENT_REF:
base = fold_offsetof_1 (TREE_OPERAND (expr, 0), stop_ref);
if (base == error_mark_node)
return base;
t = TREE_OPERAND (expr, 1);
if (DECL_C_BIT_FIELD (t))
{
error ("attempt to take address of bit-field structure "
"member %qD", t);
return error_mark_node;
}
off = size_binop (PLUS_EXPR, DECL_FIELD_OFFSET (t),
size_int (tree_low_cst (DECL_FIELD_BIT_OFFSET (t), 1)
/ BITS_PER_UNIT));
break;
case ARRAY_REF:
base = fold_offsetof_1 (TREE_OPERAND (expr, 0), stop_ref);
if (base == error_mark_node)
return base;
t = TREE_OPERAND (expr, 1);
if (TREE_CODE (t) == INTEGER_CST && tree_int_cst_sgn (t) < 0)
{
code = MINUS_EXPR;
t = fold_build1 (NEGATE_EXPR, TREE_TYPE (t), t);
}
t = convert (sizetype, t);
off = size_binop (MULT_EXPR, TYPE_SIZE_UNIT (TREE_TYPE (expr)), t);
break;
case COMPOUND_EXPR:
/* Handle static members of volatile structs. */
t = TREE_OPERAND (expr, 1);
gcc_assert (TREE_CODE (t) == VAR_DECL);
return fold_offsetof_1 (t, stop_ref);
default:
gcc_unreachable ();
}
return size_binop (code, base, off);
}
tree
fold_offsetof (tree expr, tree stop_ref)
{
/* Convert back from the internal sizetype to size_t. */
return convert (size_type_node, fold_offsetof_1 (expr, stop_ref));
}
/* Print an error message for an invalid lvalue. USE says
how the lvalue is being used and so selects the error message. */
void
lvalue_error (enum lvalue_use use)
{
switch (use)
{
case lv_assign:
error ("lvalue required as left operand of assignment");
break;
case lv_increment:
error ("lvalue required as increment operand");
break;
case lv_decrement:
error ("lvalue required as decrement operand");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
break;
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
case lv_addressof:
error ("lvalue required as unary %<&%> operand");
break;
case lv_asm:
error ("lvalue required in asm statement");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
break;
default:
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc_unreachable ();
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* *PTYPE is an incomplete array. Complete it with a domain based on
INITIAL_VALUE. If INITIAL_VALUE is not present, use 1 if DO_DEFAULT
is true. Return 0 if successful, 1 if INITIAL_VALUE can't be deciphered,
2 if INITIAL_VALUE was NULL, and 3 if INITIAL_VALUE was empty. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
int
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
complete_array_type (tree *ptype, tree initial_value, bool do_default)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree maxindex, type, main_type, elt, unqual_elt;
int failure = 0, quals;
maxindex = size_zero_node;
if (initial_value)
{
if (TREE_CODE (initial_value) == STRING_CST)
{
int eltsize
= int_size_in_bytes (TREE_TYPE (TREE_TYPE (initial_value)));
maxindex = size_int (TREE_STRING_LENGTH (initial_value)/eltsize - 1);
}
else if (TREE_CODE (initial_value) == CONSTRUCTOR)
{
VEC(constructor_elt,gc) *v = CONSTRUCTOR_ELTS (initial_value);
if (VEC_empty (constructor_elt, v))
{
if (pedantic)
failure = 3;
maxindex = integer_minus_one_node;
}
else
{
tree curindex;
unsigned HOST_WIDE_INT cnt;
constructor_elt *ce;
if (VEC_index (constructor_elt, v, 0)->index)
maxindex = fold_convert (sizetype,
VEC_index (constructor_elt,
v, 0)->index);
curindex = maxindex;
for (cnt = 1;
VEC_iterate (constructor_elt, v, cnt, ce);
cnt++)
{
if (ce->index)
curindex = fold_convert (sizetype, ce->index);
else
curindex = size_binop (PLUS_EXPR, curindex, size_one_node);
if (tree_int_cst_lt (maxindex, curindex))
maxindex = curindex;
}
}
}
else
{
/* Make an error message unless that happened already. */
if (initial_value != error_mark_node)
failure = 1;
}
}
else
{
failure = 2;
if (!do_default)
return failure;
}
type = *ptype;
elt = TREE_TYPE (type);
quals = TYPE_QUALS (strip_array_types (elt));
if (quals == 0)
unqual_elt = elt;
else
unqual_elt = c_build_qualified_type (elt, TYPE_UNQUALIFIED);
/* Using build_distinct_type_copy and modifying things afterward instead
of using build_array_type to create a new type preserves all of the
TYPE_LANG_FLAG_? bits that the front end may have set. */
main_type = build_distinct_type_copy (TYPE_MAIN_VARIANT (type));
TREE_TYPE (main_type) = unqual_elt;
TYPE_DOMAIN (main_type) = build_index_type (maxindex);
layout_type (main_type);
if (quals == 0)
type = main_type;
else
type = c_build_qualified_type (main_type, quals);
*ptype = type;
return failure;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Used to help initialize the builtin-types.def table. When a type of
the correct size doesn't exist, use error_mark_node instead of NULL.
The later results in segfaults even when a decl using the type doesn't
get invoked. */
tree
builtin_type_for_size (int size, bool unsignedp)
{
tree type = lang_hooks.types.type_for_size (size, unsignedp);
return type ? type : error_mark_node;
}
/* A helper function for resolve_overloaded_builtin in resolving the
overloaded __sync_ builtins. Returns a positive power of 2 if the
first operand of PARAMS is a pointer to a supported data type.
Returns 0 if an error is encountered. */
static int
sync_resolve_size (tree function, tree params)
{
tree type;
int size;
if (params == NULL)
{
error ("too few arguments to function %qE", function);
return 0;
}
type = TREE_TYPE (TREE_VALUE (params));
if (TREE_CODE (type) != POINTER_TYPE)
goto incompatible;
type = TREE_TYPE (type);
if (!INTEGRAL_TYPE_P (type) && !POINTER_TYPE_P (type))
goto incompatible;
size = tree_low_cst (TYPE_SIZE_UNIT (type), 1);
if (size == 1 || size == 2 || size == 4 || size == 8 || size == 16)
return size;
incompatible:
error ("incompatible type for argument %d of %qE", 1, function);
return 0;
}
/* A helper function for resolve_overloaded_builtin. Adds casts to
PARAMS to make arguments match up with those of FUNCTION. Drops
the variadic arguments at the end. Returns false if some error
was encountered; true on success. */
static bool
sync_resolve_params (tree orig_function, tree function, tree params)
{
tree arg_types = TYPE_ARG_TYPES (TREE_TYPE (function));
tree ptype;
int number;
/* We've declared the implementation functions to use "volatile void *"
as the pointer parameter, so we shouldn't get any complaints from the
call to check_function_arguments what ever type the user used. */
arg_types = TREE_CHAIN (arg_types);
ptype = TREE_TYPE (TREE_TYPE (TREE_VALUE (params)));
number = 2;
/* For the rest of the values, we need to cast these to FTYPE, so that we
don't get warnings for passing pointer types, etc. */
while (arg_types != void_list_node)
{
tree val;
params = TREE_CHAIN (params);
if (params == NULL)
{
error ("too few arguments to function %qE", orig_function);
return false;
}
/* ??? Ideally for the first conversion we'd use convert_for_assignment
so that we get warnings for anything that doesn't match the pointer
type. This isn't portable across the C and C++ front ends atm. */
val = TREE_VALUE (params);
val = convert (ptype, val);
val = convert (TREE_VALUE (arg_types), val);
TREE_VALUE (params) = val;
arg_types = TREE_CHAIN (arg_types);
number++;
}
/* The definition of these primitives is variadic, with the remaining
being "an optional list of variables protected by the memory barrier".
No clue what that's supposed to mean, precisely, but we consider all
call-clobbered variables to be protected so we're safe. */
TREE_CHAIN (params) = NULL;
return true;
}
/* A helper function for resolve_overloaded_builtin. Adds a cast to
RESULT to make it match the type of the first pointer argument in
PARAMS. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
static tree
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
sync_resolve_return (tree params, tree result)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree ptype = TREE_TYPE (TREE_TYPE (TREE_VALUE (params)));
ptype = TYPE_MAIN_VARIANT (ptype);
return convert (ptype, result);
}
/* Some builtin functions are placeholders for other expressions. This
function should be called immediately after parsing the call expression
before surrounding code has committed to the type of the expression.
FUNCTION is the DECL that has been invoked; it is known to be a builtin.
PARAMS is the argument list for the call. The return value is non-null
when expansion is complete, and null if normal processing should
continue. */
tree
resolve_overloaded_builtin (tree function, tree params)
{
enum built_in_function orig_code = DECL_FUNCTION_CODE (function);
switch (DECL_BUILT_IN_CLASS (function))
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
case BUILT_IN_NORMAL:
break;
case BUILT_IN_MD:
if (targetm.resolve_overloaded_builtin)
return targetm.resolve_overloaded_builtin (function, params);
else
return NULL_TREE;
default:
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
return NULL_TREE;
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Handle BUILT_IN_NORMAL here. */
switch (orig_code)
{
case BUILT_IN_FETCH_AND_ADD_N:
case BUILT_IN_FETCH_AND_SUB_N:
case BUILT_IN_FETCH_AND_OR_N:
case BUILT_IN_FETCH_AND_AND_N:
case BUILT_IN_FETCH_AND_XOR_N:
case BUILT_IN_FETCH_AND_NAND_N:
case BUILT_IN_ADD_AND_FETCH_N:
case BUILT_IN_SUB_AND_FETCH_N:
case BUILT_IN_OR_AND_FETCH_N:
case BUILT_IN_AND_AND_FETCH_N:
case BUILT_IN_XOR_AND_FETCH_N:
case BUILT_IN_NAND_AND_FETCH_N:
case BUILT_IN_BOOL_COMPARE_AND_SWAP_N:
case BUILT_IN_VAL_COMPARE_AND_SWAP_N:
case BUILT_IN_LOCK_TEST_AND_SET_N:
case BUILT_IN_LOCK_RELEASE_N:
{
int n = sync_resolve_size (function, params);
tree new_function, result;
if (n == 0)
return error_mark_node;
new_function = built_in_decls[orig_code + exact_log2 (n) + 1];
if (!sync_resolve_params (function, new_function, params))
return error_mark_node;
result = build_function_call (new_function, params);
if (orig_code != BUILT_IN_BOOL_COMPARE_AND_SWAP_N
&& orig_code != BUILT_IN_LOCK_RELEASE_N)
result = sync_resolve_return (params, result);
return result;
}
default:
return NULL_TREE;
}
}
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Ignoring their sign, return true if two scalar types are the same. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
bool
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
same_scalar_type_ignoring_signedness (tree t1, tree t2)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
enum tree_code c1 = TREE_CODE (t1), c2 = TREE_CODE (t2);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc_assert ((c1 == INTEGER_TYPE || c1 == REAL_TYPE)
&& (c2 == INTEGER_TYPE || c2 == REAL_TYPE));
/* Equality works here because c_common_signed_type uses
TYPE_MAIN_VARIANT. */
return lang_hooks.types.signed_type (t1)
== lang_hooks.types.signed_type (t2);
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
/* Check for missing format attributes on function pointers. LTYPE is
the new type or left-hand side type. RTYPE is the old type or
right-hand side type. Returns TRUE if LTYPE is missing the desired
attribute. */
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
bool
check_missing_format_attribute (tree ltype, tree rtype)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree const ttr = TREE_TYPE (rtype), ttl = TREE_TYPE (ltype);
tree ra;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
for (ra = TYPE_ATTRIBUTES (ttr); ra; ra = TREE_CHAIN (ra))
if (is_attribute_p ("format", TREE_PURPOSE (ra)))
break;
if (ra)
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
{
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
tree la;
for (la = TYPE_ATTRIBUTES (ttl); la; la = TREE_CHAIN (la))
if (is_attribute_p ("format", TREE_PURPOSE (la)))
break;
return !la;
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
else
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
return false;
}
/* Subscripting with type char is likely to lose on a machine where
chars are signed. So warn on any machine, but optionally. Don't
warn for unsigned char since that type is safe. Don't warn for
signed char because anyone who uses that must have done so
deliberately. Furthermore, we reduce the false positive load by
warning only for non-constant value of type char. */
void
warn_array_subscript_with_type_char (tree index)
{
if (TYPE_MAIN_VARIANT (TREE_TYPE (index)) == char_type_node
&& TREE_CODE (index) != INTEGER_CST)
warning (OPT_Wchar_subscripts, "array subscript has type %<char%>");
Merge FreeBSD changes into GCC 3.4.2-prerelease. r1.18: Move FreeBSD specific flag variables from c-decl.c here.
2004-07-28 03:40:54 +00:00
}
gcc: Backport fixes for -W parentheses in C++ This fixes GCC 19564: http://gcc.gnu.org/ml/gcc-patches/2006-12/msg00868.html http://gcc.gnu.org/ml/gcc-patches/2006-12/msg01772.html http://gcc.gnu.org/ml/gcc-patches/2007-01/msg00545.html The patch and its fixes are used by Google in their enhanced gcc-4.2.1 port and predates the license switch in GCC so they are still under GPLv2. MFC after: 3 weeks
2013-11-13 04:31:27 +00:00
/* Implement -Wparentheses for the unexpected C precedence rules, to
cover cases like x + y << z which readers are likely to
misinterpret. We have seen an expression in which CODE is a binary
operator used to combine expressions headed by CODE_LEFT and
CODE_RIGHT. CODE_LEFT and CODE_RIGHT may be ERROR_MARK, which
means that that side of the expression was not formed using a
binary operator, or it was enclosed in parentheses. */
void
warn_about_parentheses (enum tree_code code, enum tree_code code_left,
enum tree_code code_right)
{
if (!warn_parentheses)
return;
if (code == LSHIFT_EXPR || code == RSHIFT_EXPR)
{
if (code_left == PLUS_EXPR || code_left == MINUS_EXPR
|| code_right == PLUS_EXPR || code_right == MINUS_EXPR)
warning (OPT_Wparentheses,
"suggest parentheses around + or - inside shift");
}
if (code == TRUTH_ORIF_EXPR)
{
if (code_left == TRUTH_ANDIF_EXPR
|| code_right == TRUTH_ANDIF_EXPR)
warning (OPT_Wparentheses,
"suggest parentheses around && within ||");
}
if (code == BIT_IOR_EXPR)
{
if (code_left == BIT_AND_EXPR || code_left == BIT_XOR_EXPR
|| code_left == PLUS_EXPR || code_left == MINUS_EXPR
|| code_right == BIT_AND_EXPR || code_right == BIT_XOR_EXPR
|| code_right == PLUS_EXPR || code_right == MINUS_EXPR)
warning (OPT_Wparentheses,
"suggest parentheses around arithmetic in operand of |");
/* Check cases like x|y==z */
if (TREE_CODE_CLASS (code_left) == tcc_comparison
|| TREE_CODE_CLASS (code_right) == tcc_comparison)
warning (OPT_Wparentheses,
"suggest parentheses around comparison in operand of |");
}
if (code == BIT_XOR_EXPR)
{
if (code_left == BIT_AND_EXPR
|| code_left == PLUS_EXPR || code_left == MINUS_EXPR
|| code_right == BIT_AND_EXPR
|| code_right == PLUS_EXPR || code_right == MINUS_EXPR)
warning (OPT_Wparentheses,
"suggest parentheses around arithmetic in operand of ^");
/* Check cases like x^y==z */
if (TREE_CODE_CLASS (code_left) == tcc_comparison
|| TREE_CODE_CLASS (code_right) == tcc_comparison)
warning (OPT_Wparentheses,
"suggest parentheses around comparison in operand of ^");
}
if (code == BIT_AND_EXPR)
{
if (code_left == PLUS_EXPR || code_left == MINUS_EXPR
|| code_right == PLUS_EXPR || code_right == MINUS_EXPR)
warning (OPT_Wparentheses,
"suggest parentheses around + or - in operand of &");
/* Check cases like x&y==z */
if (TREE_CODE_CLASS (code_left) == tcc_comparison
|| TREE_CODE_CLASS (code_right) == tcc_comparison)
warning (OPT_Wparentheses,
"suggest parentheses around comparison in operand of &");
}
/* Similarly, check for cases like 1<=i<=10 that are probably errors. */
if (TREE_CODE_CLASS (code) == tcc_comparison
&& (TREE_CODE_CLASS (code_left) == tcc_comparison
|| TREE_CODE_CLASS (code_right) == tcc_comparison))
warning (OPT_Wparentheses, "comparisons like X<=Y<=Z do not "
"have their mathematical meaning");
}
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* APPLE LOCAL begin radar 6246527 */
/* This routine is called for a "format" attribute. It adds the number of
hidden argument ('1') to the format's 2nd and 3rd argument to compensate
for these two arguments. This is to make rest of the "format" attribute
processing done in the middle-end to work seemlessly. */
static void
block_delta_format_args (tree format)
{
tree format_num_expr, first_arg_num_expr;
int val;
tree args = TREE_VALUE (format);
gcc_assert (TREE_CHAIN (args) && TREE_CHAIN (TREE_CHAIN (args)));
format_num_expr = TREE_VALUE (TREE_CHAIN (args));
first_arg_num_expr = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (args)));
if (format_num_expr && TREE_CODE (format_num_expr) == INTEGER_CST)
{
val = TREE_INT_CST_LOW (format_num_expr);
TREE_VALUE (TREE_CHAIN (args)) = build_int_cst (NULL_TREE, val+1);
}
if (first_arg_num_expr && TREE_CODE (first_arg_num_expr) == INTEGER_CST)
{
val = TREE_INT_CST_LOW (first_arg_num_expr);
if (val != 0)
TREE_VALUE (TREE_CHAIN (TREE_CHAIN (args))) =
build_int_cst (NULL_TREE, val+1);
}
}
/* This routine recognizes legal block attributes. In case of block's "format"
attribute, it calls block_delta_format_args to compensate for hidden
argument _self getting passed to block's helper function. */
bool
any_recognized_block_attribute (tree attributes)
{
tree chain;
bool res = false;
for (chain = attributes; chain; chain = TREE_CHAIN (chain))
{
if (is_attribute_p ("format", TREE_PURPOSE (chain)))
{
block_delta_format_args (chain);
res = true;
}
else if (is_attribute_p ("sentinel", TREE_PURPOSE (chain)))
res = true;
}
return res;
}
/* APPLE LOCAL end radar 6246527 */
/* APPLE LOCAL begin radar 5847976 */
static GTY(()) tree block_object_assign_decl;
static GTY(()) tree block_object_dispose_func_decl;
/* This routine declares:
void _Block_object_assign (void *, void *, int) or uses an
existing one.
*/
static tree
build_block_object_assign_decl (void)
{
tree func_type;
if (block_object_assign_decl)
return block_object_assign_decl;
block_object_assign_decl = lookup_name (get_identifier ("_Block_object_assign"));
if (block_object_assign_decl)
return block_object_assign_decl;
func_type =
build_function_type (void_type_node,
tree_cons (NULL_TREE, ptr_type_node,
tree_cons (NULL_TREE, ptr_type_node,
tree_cons (NULL_TREE, integer_type_node, void_list_node))));
block_object_assign_decl = builtin_function ("_Block_object_assign", func_type,
0, NOT_BUILT_IN, 0, NULL_TREE);
TREE_NOTHROW (block_object_assign_decl) = 0;
return block_object_assign_decl;
}
/* This routine builds:
_Block_object_assign(dest, src, flag)
*/
tree build_block_object_assign_call_exp (tree dst, tree src, int flag)
{
tree func_params = tree_cons (NULL_TREE, dst,
tree_cons (NULL_TREE, src,
tree_cons (NULL_TREE,
build_int_cst (integer_type_node, flag),
NULL_TREE)));
return build_function_call (build_block_object_assign_decl (), func_params);
}
FreeBSD uses unchanged versions of this files.
2007-05-19 02:12:21 +00:00
gcc: Add support for Apple's Block extension Block objects [1] are a C-level syntactic and runtime feature. They are similar to standard C functions, but in addition to executable code they may also contain variable bindings to automatic (stack) or managed (heap) memory. A block can therefore maintain a set of state (data) that it can use to impact behavior when executed. This port is based on Apple's GCC 5646 with some bugfixes from Apple GCC 5666.3. It has some small differences with the support in clang, which remains the recommended compiler. Perhaps the most notable difference is that in GCC that __block is not actually a keyword, but a macro. There will be workaround for this issue in a near future. Other issues can be consulted in the clang documentation [2] For better compatiblity with Apple's GCC and llvm-gcc some related fixes and features from Apple have been included. Support for the non-standard nested functions in GCC is now off by default. No effort was made to update the ObjC support since FreeBSD doesn't carry ObjC in the base system, but some of the code crept in and was more difficult to remove than to adjust. Reference: [1] https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html [2] http://clang.llvm.org/compatibility.html#block-variable-initialization Obtained from: Apple GCC 4.2 MFC after: 3 weeks
2014-01-05 00:43:28 +00:00
/* This routine declares:
void _Block_object_dispose (void *, int) or uses an
existing one.
*/
static tree
build_block_object_dispose_decl (void)
{
tree func_type;
if (block_object_dispose_func_decl)
return block_object_dispose_func_decl;
block_object_dispose_func_decl = lookup_name (get_identifier ("_Block_object_dispose"));
if (block_object_dispose_func_decl)
return block_object_dispose_func_decl;
func_type =
build_function_type (void_type_node,
tree_cons (NULL_TREE, ptr_type_node,
tree_cons (NULL_TREE, integer_type_node, void_list_node)));
block_object_dispose_func_decl = builtin_function ("_Block_object_dispose", func_type,
0, NOT_BUILT_IN, 0, NULL_TREE);
TREE_NOTHROW (block_object_dispose_func_decl) = 0;
return block_object_dispose_func_decl;
}
/* This routine builds the call tree:
_Block_object_dispose(src, flag)
*/
tree build_block_object_dispose_call_exp (tree src, int flag)
{
tree func_params = tree_cons (NULL_TREE, src,
tree_cons (NULL_TREE,
build_int_cst (integer_type_node, flag),
NULL_TREE));
return build_function_call (build_block_object_dispose_decl (), func_params);
}
/* APPLE LOCAL end radar 5847976 */
/* APPLE LOCAL begin radar 7760213 */
int HasByrefArray(tree byrefType)
{
tree s1;
/* Check for possibility of an error condition. */
if (TREE_CODE(byrefType) != RECORD_TYPE)
return 0;
for (s1 = TYPE_FIELDS (byrefType); s1; s1 = TREE_CHAIN (s1))
{
if (TREE_CODE(TREE_TYPE(s1)) == ARRAY_TYPE)
return 1;
}
return 0;
}
/* APPLE LOCAL end radar 7760213 */
FreeBSD uses stock versions of these GCC files.
2003-07-11 04:00:23 +00:00
#include "gt-c-common.h"
Reference in New Issue Copy Permalink