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freebsd-skq/contrib/gcc/cp/dump.c
pfg c5923c0498 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

482 lines
12 KiB
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/* Tree-dumping functionality for intermediate representation.
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
Written by Mark Mitchell <mark@codesourcery.com>
This file is part of GCC.
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.
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.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
#include "cp-tree.h"
#include "tree-dump.h"
static void dump_access (dump_info_p, tree);
static void dump_op (dump_info_p, tree);
/* Dump a representation of the accessibility information associated
with T. */
static void
dump_access (dump_info_p di, tree t)
{
if (TREE_PROTECTED(t))
dump_string_field (di, "accs", "prot");
else if (TREE_PRIVATE(t))
dump_string_field (di, "accs", "priv");
else
dump_string_field (di, "accs", "pub");
}
/* Dump a representation of the specific operator for an overloaded
operator associated with node t. */
static void
dump_op (dump_info_p di, tree t)
{
switch (DECL_OVERLOADED_OPERATOR_P (t)) {
case NEW_EXPR:
dump_string (di, "new");
break;
case VEC_NEW_EXPR:
dump_string (di, "vecnew");
break;
case DELETE_EXPR:
dump_string (di, "delete");
break;
case VEC_DELETE_EXPR:
dump_string (di, "vecdelete");
break;
case UNARY_PLUS_EXPR:
dump_string (di, "pos");
break;
case NEGATE_EXPR:
dump_string (di, "neg");
break;
case ADDR_EXPR:
dump_string (di, "addr");
break;
case INDIRECT_REF:
dump_string(di, "deref");
break;
case BIT_NOT_EXPR:
dump_string(di, "not");
break;
case TRUTH_NOT_EXPR:
dump_string(di, "lnot");
break;
case PREINCREMENT_EXPR:
dump_string(di, "preinc");
break;
case PREDECREMENT_EXPR:
dump_string(di, "predec");
break;
case PLUS_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "plusassign");
else
dump_string(di, "plus");
break;
case MINUS_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "minusassign");
else
dump_string(di, "minus");
break;
case MULT_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "multassign");
else
dump_string (di, "mult");
break;
case TRUNC_DIV_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "divassign");
else
dump_string (di, "div");
break;
case TRUNC_MOD_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "modassign");
else
dump_string (di, "mod");
break;
case BIT_AND_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "andassign");
else
dump_string (di, "and");
break;
case BIT_IOR_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "orassign");
else
dump_string (di, "or");
break;
case BIT_XOR_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "xorassign");
else
dump_string (di, "xor");
break;
case LSHIFT_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "lshiftassign");
else
dump_string (di, "lshift");
break;
case RSHIFT_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "rshiftassign");
else
dump_string (di, "rshift");
break;
case EQ_EXPR:
dump_string (di, "eq");
break;
case NE_EXPR:
dump_string (di, "ne");
break;
case LT_EXPR:
dump_string (di, "lt");
break;
case GT_EXPR:
dump_string (di, "gt");
break;
case LE_EXPR:
dump_string (di, "le");
break;
case GE_EXPR:
dump_string (di, "ge");
break;
case TRUTH_ANDIF_EXPR:
dump_string (di, "land");
break;
case TRUTH_ORIF_EXPR:
dump_string (di, "lor");
break;
case COMPOUND_EXPR:
dump_string (di, "compound");
break;
case MEMBER_REF:
dump_string (di, "memref");
break;
case COMPONENT_REF:
dump_string (di, "ref");
break;
case ARRAY_REF:
dump_string (di, "subs");
break;
case POSTINCREMENT_EXPR:
dump_string (di, "postinc");
break;
case POSTDECREMENT_EXPR:
dump_string (di, "postdec");
break;
case CALL_EXPR:
dump_string (di, "call");
break;
case NOP_EXPR:
if (DECL_ASSIGNMENT_OPERATOR_P (t))
dump_string (di, "assign");
break;
default:
break;
}
}
bool
cp_dump_tree (void* dump_info, tree t)
{
enum tree_code code;
dump_info_p di = (dump_info_p) dump_info;
/* Figure out what kind of node this is. */
code = TREE_CODE (t);
if (DECL_P (t))
{
if (DECL_LANG_SPECIFIC (t) && DECL_LANGUAGE (t) != lang_cplusplus)
dump_string_field (di, "lang", language_to_string (DECL_LANGUAGE (t)));
}
switch (code)
{
case IDENTIFIER_NODE:
if (IDENTIFIER_OPNAME_P (t))
{
dump_string_field (di, "note", "operator");
return true;
}
else if (IDENTIFIER_TYPENAME_P (t))
{
dump_child ("tynm", TREE_TYPE (t));
return true;
}
break;
case OFFSET_TYPE:
dump_string_field (di, "note", "ptrmem");
dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
return true;
case RECORD_TYPE:
if (TYPE_PTRMEMFUNC_P (t))
{
dump_string_field (di, "note", "ptrmem");
dump_child ("ptd", TYPE_PTRMEM_POINTED_TO_TYPE (t));
dump_child ("cls", TYPE_PTRMEM_CLASS_TYPE (t));
return true;
}
/* Fall through. */
case UNION_TYPE:
/* Is it a type used as a base? */
if (TYPE_CONTEXT (t) && TREE_CODE (TYPE_CONTEXT (t)) == TREE_CODE (t)
&& CLASSTYPE_AS_BASE (TYPE_CONTEXT (t)) == t)
{
dump_child ("bfld", TYPE_CONTEXT (t));
return true;
}
if (! IS_AGGR_TYPE (t))
break;
dump_child ("vfld", TYPE_VFIELD (t));
if (CLASSTYPE_TEMPLATE_SPECIALIZATION(t))
dump_string(di, "spec");
if (!dump_flag (di, TDF_SLIM, t) && TYPE_BINFO (t))
{
int i;
tree binfo;
tree base_binfo;
for (binfo = TYPE_BINFO (t), i = 0;
BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)
{
dump_child ("base", BINFO_TYPE (base_binfo));
if (BINFO_VIRTUAL_P (base_binfo))
dump_string_field (di, "spec", "virt");
dump_access (di, base_binfo);
}
}
break;
case FIELD_DECL:
dump_access (di, t);
if (DECL_MUTABLE_P (t))
dump_string_field (di, "spec", "mutable");
break;
case VAR_DECL:
if (TREE_CODE (CP_DECL_CONTEXT (t)) == RECORD_TYPE)
dump_access (di, t);
if (TREE_STATIC (t) && !TREE_PUBLIC (t))
dump_string_field (di, "link", "static");
break;
case FUNCTION_DECL:
if (!DECL_THUNK_P (t))
{
if (DECL_OVERLOADED_OPERATOR_P (t)) {
dump_string_field (di, "note", "operator");
dump_op (di, t);
}
if (DECL_FUNCTION_MEMBER_P (t))
{
dump_string_field (di, "note", "member");
dump_access (di, t);
}
if (DECL_PURE_VIRTUAL_P (t))
dump_string_field (di, "spec", "pure");
if (DECL_VIRTUAL_P (t))
dump_string_field (di, "spec", "virt");
if (DECL_CONSTRUCTOR_P (t))
dump_string_field (di, "note", "constructor");
if (DECL_DESTRUCTOR_P (t))
dump_string_field (di, "note", "destructor");
if (DECL_CONV_FN_P (t))
dump_string_field (di, "note", "conversion");
if (DECL_GLOBAL_CTOR_P (t))
dump_string_field (di, "note", "global init");
if (DECL_GLOBAL_DTOR_P (t))
dump_string_field (di, "note", "global fini");
if (DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t))
dump_string_field (di, "note", "pseudo tmpl");
}
else
{
tree virt = THUNK_VIRTUAL_OFFSET (t);
dump_string_field (di, "note", "thunk");
if (DECL_THIS_THUNK_P (t))
dump_string_field (di, "note", "this adjusting");
else
{
dump_string_field (di, "note", "result adjusting");
if (virt)
virt = BINFO_VPTR_FIELD (virt);
}
dump_int (di, "fixd", THUNK_FIXED_OFFSET (t));
if (virt)
dump_int (di, "virt", tree_low_cst (virt, 0));
dump_child ("fn", DECL_INITIAL (t));
}
break;
case NAMESPACE_DECL:
if (DECL_NAMESPACE_ALIAS (t))
dump_child ("alis", DECL_NAMESPACE_ALIAS (t));
else if (!dump_flag (di, TDF_SLIM, t))
dump_child ("dcls", cp_namespace_decls (t));
break;
case TEMPLATE_DECL:
dump_child ("rslt", DECL_TEMPLATE_RESULT (t));
dump_child ("inst", DECL_TEMPLATE_INSTANTIATIONS (t));
dump_child ("spcs", DECL_TEMPLATE_SPECIALIZATIONS (t));
dump_child ("prms", DECL_TEMPLATE_PARMS (t));
break;
case OVERLOAD:
dump_child ("crnt", OVL_CURRENT (t));
dump_child ("chan", OVL_CHAIN (t));
break;
case TRY_BLOCK:
dump_stmt (di, t);
if (CLEANUP_P (t))
dump_string_field (di, "note", "cleanup");
dump_child ("body", TRY_STMTS (t));
dump_child ("hdlr", TRY_HANDLERS (t));
break;
case EH_SPEC_BLOCK:
dump_stmt (di, t);
dump_child ("body", EH_SPEC_STMTS (t));
dump_child ("raises", EH_SPEC_RAISES (t));
break;
case PTRMEM_CST:
dump_child ("clas", PTRMEM_CST_CLASS (t));
dump_child ("mbr", PTRMEM_CST_MEMBER (t));
break;
case THROW_EXPR:
/* These nodes are unary, but do not have code class `1'. */
dump_child ("op 0", TREE_OPERAND (t, 0));
break;
case AGGR_INIT_EXPR:
dump_int (di, "ctor", AGGR_INIT_VIA_CTOR_P (t));
dump_child ("fn", TREE_OPERAND (t, 0));
dump_child ("args", TREE_OPERAND (t, 1));
dump_child ("decl", TREE_OPERAND (t, 2));
break;
case HANDLER:
dump_stmt (di, t);
dump_child ("parm", HANDLER_PARMS (t));
dump_child ("body", HANDLER_BODY (t));
break;
case MUST_NOT_THROW_EXPR:
dump_stmt (di, t);
dump_child ("body", TREE_OPERAND (t, 0));
break;
case USING_STMT:
dump_stmt (di, t);
dump_child ("nmsp", USING_STMT_NAMESPACE (t));
break;
case CLEANUP_STMT:
dump_stmt (di, t);
dump_child ("decl", CLEANUP_DECL (t));
dump_child ("expr", CLEANUP_EXPR (t));
dump_child ("body", CLEANUP_BODY (t));
break;
case IF_STMT:
dump_stmt (di, t);
dump_child ("cond", IF_COND (t));
dump_child ("then", THEN_CLAUSE (t));
dump_child ("else", ELSE_CLAUSE (t));
break;
case BREAK_STMT:
case CONTINUE_STMT:
dump_stmt (di, t);
break;
case DO_STMT:
dump_stmt (di, t);
dump_child ("body", DO_BODY (t));
dump_child ("cond", DO_COND (t));
/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
dump_child ("attrs", DO_ATTRIBUTES (t));
/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
break;
case FOR_STMT:
dump_stmt (di, t);
dump_child ("init", FOR_INIT_STMT (t));
dump_child ("cond", FOR_COND (t));
dump_child ("expr", FOR_EXPR (t));
dump_child ("body", FOR_BODY (t));
/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
dump_child ("attrs", FOR_ATTRIBUTES (t));
/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
break;
case SWITCH_STMT:
dump_stmt (di, t);
dump_child ("cond", SWITCH_STMT_COND (t));
dump_child ("body", SWITCH_STMT_BODY (t));
break;
case WHILE_STMT:
dump_stmt (di, t);
dump_child ("cond", WHILE_COND (t));
dump_child ("body", WHILE_BODY (t));
/* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
dump_child ("attrs", WHILE_ATTRIBUTES (t));
/* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
break;
case STMT_EXPR:
dump_child ("stmt", STMT_EXPR_STMT (t));
break;
case EXPR_STMT:
dump_stmt (di, t);
dump_child ("expr", EXPR_STMT_EXPR (t));
break;
default:
break;
}
return c_dump_tree (di, t);
}
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