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freebsd-nq/contrib/gcc/convert.c

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Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Utility routines for data type conversion for GCC.
Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1997, 1998,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
2000, 2001, 2002, 2003, 2004, 2005, 2006 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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
along with GCC; see the file COPYING. If not, write to the Free
GCC 4.2.0 release.
2007-05-19 01:19:51 +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
/* These routines are somewhat language-independent utility function
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
intended to be called by the language-specific convert () functions. */
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"
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
#include "system.h"
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
#include "coretypes.h"
#include "tm.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"
#include "convert.h"
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
#include "toplev.h"
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
#include "langhooks.h"
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
#include "real.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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Convert EXPR to some pointer or reference 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
EXPR must be pointer, reference, integer, enumeral, or literal zero;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
in other cases error is called. */
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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_to_pointer (tree type, 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
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (TREE_TYPE (expr) == type)
return 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
if (integer_zerop (expr))
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree t = build_int_cst (type, 0);
if (TREE_OVERFLOW (expr) || TREE_CONSTANT_OVERFLOW (expr))
t = force_fit_type (t, 0, TREE_OVERFLOW (expr),
TREE_CONSTANT_OVERFLOW (expr));
return 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
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
switch (TREE_CODE (TREE_TYPE (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
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case POINTER_TYPE:
case REFERENCE_TYPE:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return fold_build1 (NOP_EXPR, type, expr);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case INTEGER_TYPE:
case ENUMERAL_TYPE:
case BOOLEAN_TYPE:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (TYPE_PRECISION (TREE_TYPE (expr)) != POINTER_SIZE)
expr = fold_build1 (NOP_EXPR,
lang_hooks.types.type_for_size (POINTER_SIZE, 0),
expr);
return fold_build1 (CONVERT_EXPR, type, 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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
error ("cannot convert to a pointer type");
return convert_to_pointer (type, integer_zero_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
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* Avoid any floating point extensions from EXP. */
tree
strip_float_extensions (tree exp)
{
tree sub, expt, subt;
/* For floating point constant look up the narrowest type that can hold
it properly and handle it like (type)(narrowest_type)constant.
This way we can optimize for instance a=a*2.0 where "a" is float
but 2.0 is double constant. */
if (TREE_CODE (exp) == REAL_CST)
{
REAL_VALUE_TYPE orig;
tree type = NULL;
orig = TREE_REAL_CST (exp);
if (TYPE_PRECISION (TREE_TYPE (exp)) > TYPE_PRECISION (float_type_node)
&& exact_real_truncate (TYPE_MODE (float_type_node), &orig))
type = float_type_node;
else if (TYPE_PRECISION (TREE_TYPE (exp))
> TYPE_PRECISION (double_type_node)
&& exact_real_truncate (TYPE_MODE (double_type_node), &orig))
type = double_type_node;
if (type)
return build_real (type, real_value_truncate (TYPE_MODE (type), orig));
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (TREE_CODE (exp) != NOP_EXPR
&& TREE_CODE (exp) != CONVERT_EXPR)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
return exp;
sub = TREE_OPERAND (exp, 0);
subt = TREE_TYPE (sub);
expt = TREE_TYPE (exp);
if (!FLOAT_TYPE_P (subt))
return exp;
if (TYPE_PRECISION (subt) > TYPE_PRECISION (expt))
return exp;
return strip_float_extensions (sub);
}
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
/* Convert EXPR to some floating-point type TYPE.
EXPR must be float, integer, or enumeral;
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
in other cases error is called. */
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
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_to_real (tree type, 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
{
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
enum built_in_function fcode = builtin_mathfn_code (expr);
tree itype = TREE_TYPE (expr);
/* Disable until we figure out how to decide whether the functions are
present in runtime. */
/* Convert (float)sqrt((double)x) where x is float into sqrtf(x) */
if (optimize
&& (TYPE_MODE (type) == TYPE_MODE (double_type_node)
|| TYPE_MODE (type) == TYPE_MODE (float_type_node)))
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
switch (fcode)
{
#define CASE_MATHFN(FN) case BUILT_IN_##FN: case BUILT_IN_##FN##L:
CASE_MATHFN (ACOS)
CASE_MATHFN (ACOSH)
CASE_MATHFN (ASIN)
CASE_MATHFN (ASINH)
CASE_MATHFN (ATAN)
CASE_MATHFN (ATANH)
CASE_MATHFN (CBRT)
CASE_MATHFN (COS)
CASE_MATHFN (COSH)
CASE_MATHFN (ERF)
CASE_MATHFN (ERFC)
CASE_MATHFN (EXP)
CASE_MATHFN (EXP10)
CASE_MATHFN (EXP2)
CASE_MATHFN (EXPM1)
CASE_MATHFN (FABS)
CASE_MATHFN (GAMMA)
CASE_MATHFN (J0)
CASE_MATHFN (J1)
CASE_MATHFN (LGAMMA)
CASE_MATHFN (LOG)
CASE_MATHFN (LOG10)
CASE_MATHFN (LOG1P)
CASE_MATHFN (LOG2)
CASE_MATHFN (LOGB)
CASE_MATHFN (POW10)
CASE_MATHFN (SIN)
CASE_MATHFN (SINH)
CASE_MATHFN (SQRT)
CASE_MATHFN (TAN)
CASE_MATHFN (TANH)
CASE_MATHFN (TGAMMA)
CASE_MATHFN (Y0)
CASE_MATHFN (Y1)
#undef CASE_MATHFN
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree arg0 = strip_float_extensions (TREE_VALUE (TREE_OPERAND (expr, 1)));
tree newtype = type;
/* We have (outertype)sqrt((innertype)x). Choose the wider mode from
the both as the safe type for operation. */
if (TYPE_PRECISION (TREE_TYPE (arg0)) > TYPE_PRECISION (type))
newtype = TREE_TYPE (arg0);
/* Be careful about integer to fp conversions.
These may overflow still. */
if (FLOAT_TYPE_P (TREE_TYPE (arg0))
&& TYPE_PRECISION (newtype) < TYPE_PRECISION (itype)
&& (TYPE_MODE (newtype) == TYPE_MODE (double_type_node)
|| TYPE_MODE (newtype) == TYPE_MODE (float_type_node)))
{
tree arglist;
tree fn = mathfn_built_in (newtype, fcode);
if (fn)
{
arglist = build_tree_list (NULL_TREE, fold (convert_to_real (newtype, arg0)));
expr = build_function_call_expr (fn, arglist);
if (newtype == type)
return expr;
}
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
default:
break;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
}
}
if (optimize
&& (((fcode == BUILT_IN_FLOORL
|| fcode == BUILT_IN_CEILL
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| fcode == BUILT_IN_ROUNDL
|| fcode == BUILT_IN_RINTL
|| fcode == BUILT_IN_TRUNCL
|| fcode == BUILT_IN_NEARBYINTL)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
&& (TYPE_MODE (type) == TYPE_MODE (double_type_node)
|| TYPE_MODE (type) == TYPE_MODE (float_type_node)))
|| ((fcode == BUILT_IN_FLOOR
|| fcode == BUILT_IN_CEIL
|| fcode == BUILT_IN_ROUND
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| fcode == BUILT_IN_RINT
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
|| fcode == BUILT_IN_TRUNC
|| fcode == BUILT_IN_NEARBYINT)
&& (TYPE_MODE (type) == TYPE_MODE (float_type_node)))))
{
tree fn = mathfn_built_in (type, fcode);
if (fn)
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree arg
= strip_float_extensions (TREE_VALUE (TREE_OPERAND (expr, 1)));
/* Make sure (type)arg0 is an extension, otherwise we could end up
changing (float)floor(double d) into floorf((float)d), which is
incorrect because (float)d uses round-to-nearest and can round
up to the next integer. */
if (TYPE_PRECISION (type) >= TYPE_PRECISION (TREE_TYPE (arg)))
return
build_function_call_expr (fn,
build_tree_list (NULL_TREE,
fold (convert_to_real (type, arg))));
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
}
}
/* Propagate the cast into the operation. */
if (itype != type && FLOAT_TYPE_P (type))
switch (TREE_CODE (expr))
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Convert (float)-x into -(float)x. This is safe for
round-to-nearest rounding mode. */
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
case ABS_EXPR:
case NEGATE_EXPR:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!flag_rounding_math
&& TYPE_PRECISION (type) < TYPE_PRECISION (TREE_TYPE (expr)))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
return build1 (TREE_CODE (expr), type,
fold (convert_to_real (type,
TREE_OPERAND (expr, 0))));
break;
/* Convert (outertype)((innertype0)a+(innertype1)b)
into ((newtype)a+(newtype)b) where newtype
is the widest mode from all of these. */
case PLUS_EXPR:
case MINUS_EXPR:
case MULT_EXPR:
case RDIV_EXPR:
{
tree arg0 = strip_float_extensions (TREE_OPERAND (expr, 0));
tree arg1 = strip_float_extensions (TREE_OPERAND (expr, 1));
if (FLOAT_TYPE_P (TREE_TYPE (arg0))
&& FLOAT_TYPE_P (TREE_TYPE (arg1)))
{
tree newtype = type;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (TYPE_MODE (TREE_TYPE (arg0)) == SDmode
|| TYPE_MODE (TREE_TYPE (arg1)) == SDmode)
newtype = dfloat32_type_node;
if (TYPE_MODE (TREE_TYPE (arg0)) == DDmode
|| TYPE_MODE (TREE_TYPE (arg1)) == DDmode)
newtype = dfloat64_type_node;
if (TYPE_MODE (TREE_TYPE (arg0)) == TDmode
|| TYPE_MODE (TREE_TYPE (arg1)) == TDmode)
newtype = dfloat128_type_node;
if (newtype == dfloat32_type_node
|| newtype == dfloat64_type_node
|| newtype == dfloat128_type_node)
{
expr = build2 (TREE_CODE (expr), newtype,
fold (convert_to_real (newtype, arg0)),
fold (convert_to_real (newtype, arg1)));
if (newtype == type)
return expr;
break;
}
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (TYPE_PRECISION (TREE_TYPE (arg0)) > TYPE_PRECISION (newtype))
newtype = TREE_TYPE (arg0);
if (TYPE_PRECISION (TREE_TYPE (arg1)) > TYPE_PRECISION (newtype))
newtype = TREE_TYPE (arg1);
if (TYPE_PRECISION (newtype) < TYPE_PRECISION (itype))
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
expr = build2 (TREE_CODE (expr), newtype,
fold (convert_to_real (newtype, arg0)),
fold (convert_to_real (newtype, arg1)));
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
if (newtype == type)
return expr;
}
}
}
break;
default:
break;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
switch (TREE_CODE (TREE_TYPE (expr)))
{
case REAL_TYPE:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Ignore the conversion if we don't need to store intermediate
results and neither type is a decimal float. */
return build1 ((flag_float_store
|| DECIMAL_FLOAT_TYPE_P (type)
|| DECIMAL_FLOAT_TYPE_P (itype))
? CONVERT_EXPR : NOP_EXPR, type, expr);
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case INTEGER_TYPE:
case ENUMERAL_TYPE:
case BOOLEAN_TYPE:
return build1 (FLOAT_EXPR, type, expr);
case COMPLEX_TYPE:
return convert (type,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
fold_build1 (REALPART_EXPR,
TREE_TYPE (TREE_TYPE (expr)), expr));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case POINTER_TYPE:
case REFERENCE_TYPE:
error ("pointer value used where a floating point value was expected");
return convert_to_real (type, integer_zero_node);
default:
error ("aggregate value used where a float was expected");
return convert_to_real (type, integer_zero_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
}
/* Convert EXPR to some integer (or enum) type TYPE.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
EXPR must be pointer, integer, discrete (enum, char, or bool), float, or
vector; in other cases error is called.
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
The result of this is always supposed to be a newly created tree node
not in use in any existing structure. */
tree
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_to_integer (tree type, 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
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
enum tree_code ex_form = TREE_CODE (expr);
tree intype = TREE_TYPE (expr);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
unsigned int inprec = TYPE_PRECISION (intype);
unsigned int outprec = TYPE_PRECISION (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
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
/* An INTEGER_TYPE cannot be incomplete, but an ENUMERAL_TYPE can
be. Consider `enum E = { a, b = (enum E) 3 };'. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
if (!COMPLETE_TYPE_P (type))
Virgin import of the GCC 2.95.1 compilers
1999-10-16 06:09:09 +00:00
{
error ("conversion to incomplete type");
return error_mark_node;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Convert e.g. (long)round(d) -> lround(d). */
/* If we're converting to char, we may encounter differing behavior
between converting from double->char vs double->long->char.
We're in "undefined" territory but we prefer to be conservative,
so only proceed in "unsafe" math mode. */
if (optimize
&& (flag_unsafe_math_optimizations
|| (long_integer_type_node
&& outprec >= TYPE_PRECISION (long_integer_type_node))))
{
tree s_expr = strip_float_extensions (expr);
tree s_intype = TREE_TYPE (s_expr);
const enum built_in_function fcode = builtin_mathfn_code (s_expr);
tree fn = 0;
switch (fcode)
{
CASE_FLT_FN (BUILT_IN_CEIL):
/* Only convert in ISO C99 mode. */
if (!TARGET_C99_FUNCTIONS)
break;
if (outprec < TYPE_PRECISION (long_integer_type_node)
|| (outprec == TYPE_PRECISION (long_integer_type_node)
&& !TYPE_UNSIGNED (type)))
fn = mathfn_built_in (s_intype, BUILT_IN_LCEIL);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LLCEIL);
break;
CASE_FLT_FN (BUILT_IN_FLOOR):
/* Only convert in ISO C99 mode. */
if (!TARGET_C99_FUNCTIONS)
break;
if (outprec < TYPE_PRECISION (long_integer_type_node)
|| (outprec == TYPE_PRECISION (long_integer_type_node)
&& !TYPE_UNSIGNED (type)))
fn = mathfn_built_in (s_intype, BUILT_IN_LFLOOR);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LLFLOOR);
break;
CASE_FLT_FN (BUILT_IN_ROUND):
if (outprec < TYPE_PRECISION (long_integer_type_node)
|| (outprec == TYPE_PRECISION (long_integer_type_node)
&& !TYPE_UNSIGNED (type)))
fn = mathfn_built_in (s_intype, BUILT_IN_LROUND);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LLROUND);
break;
CASE_FLT_FN (BUILT_IN_NEARBYINT):
/* Only convert nearbyint* if we can ignore math exceptions. */
if (flag_trapping_math)
break;
/* ... Fall through ... */
CASE_FLT_FN (BUILT_IN_RINT):
if (outprec < TYPE_PRECISION (long_integer_type_node)
|| (outprec == TYPE_PRECISION (long_integer_type_node)
&& !TYPE_UNSIGNED (type)))
fn = mathfn_built_in (s_intype, BUILT_IN_LRINT);
else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
&& !TYPE_UNSIGNED (type))
fn = mathfn_built_in (s_intype, BUILT_IN_LLRINT);
break;
CASE_FLT_FN (BUILT_IN_TRUNC):
{
tree arglist = TREE_OPERAND (s_expr, 1);
return convert_to_integer (type, TREE_VALUE (arglist));
}
default:
break;
}
if (fn)
{
tree arglist = TREE_OPERAND (s_expr, 1);
tree newexpr = build_function_call_expr (fn, arglist);
return convert_to_integer (type, newexpr);
}
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
switch (TREE_CODE (intype))
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
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case POINTER_TYPE:
case REFERENCE_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 (integer_zerop (expr))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return build_int_cst (type, 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
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
/* Convert to an unsigned integer of the correct width first,
and from there widen/truncate to the required type. */
expr = fold_build1 (CONVERT_EXPR,
lang_hooks.types.type_for_size (POINTER_SIZE, 0),
expr);
return fold_convert (type, 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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case INTEGER_TYPE:
case ENUMERAL_TYPE:
case BOOLEAN_TYPE:
/* If this is a logical operation, which just returns 0 or 1, we can
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
change the type of the 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 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (TREE_CODE_CLASS (ex_form) == tcc_comparison)
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 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
expr = copy_node (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
TREE_TYPE (expr) = type;
return expr;
}
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* If we are widening the type, put in an explicit conversion.
Similarly if we are not changing the width. After this, we know
we are truncating 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
else if (outprec >= inprec)
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
{
enum tree_code code;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree tem;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
/* If the precision of the EXPR's type is K bits and the
destination mode has more bits, and the sign is changing,
it is not safe to use a NOP_EXPR. For example, suppose
that EXPR's type is a 3-bit unsigned integer type, the
TYPE is a 3-bit signed integer type, and the machine mode
for the types is 8-bit QImode. In that case, the
conversion necessitates an explicit sign-extension. In
the signed-to-unsigned case the high-order bits have to
be cleared. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (TYPE_UNSIGNED (type) != TYPE_UNSIGNED (TREE_TYPE (expr))
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
&& (TYPE_PRECISION (TREE_TYPE (expr))
!= GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (expr)))))
code = CONVERT_EXPR;
else
code = NOP_EXPR;
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tem = fold_unary (code, type, expr);
if (tem)
return tem;
tem = build1 (code, type, expr);
TREE_NO_WARNING (tem) = 1;
return tem;
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +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
/* If TYPE is an enumeral type or a type with a precision less
than the number of bits in its mode, do the conversion to the
type corresponding to its mode, then do a nop conversion
to TYPE. */
else if (TREE_CODE (type) == ENUMERAL_TYPE
|| outprec != GET_MODE_BITSIZE (TYPE_MODE (type)))
return build1 (NOP_EXPR, type,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
convert (lang_hooks.types.type_for_mode
(TYPE_MODE (type), TYPE_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
expr));
/* Here detect when we can distribute the truncation down past some
arithmetic. For example, if adding two longs and converting to an
int, we can equally well convert both to ints and then add.
For the operations handled here, such truncation distribution
is always safe.
It is desirable in these cases:
1) when truncating down to full-word from a larger size
2) when truncating takes no work.
3) when at least one operand of the arithmetic has been extended
(as by C's default conversions). In this case we need two conversions
if we do the arithmetic as already requested, so we might as well
truncate both and then combine. Perhaps that way we need only one.
Note that in general we cannot do the arithmetic in a type
shorter than the desired result of conversion, even if the operands
are both extended from a shorter type, because they might overflow
if combined in that type. The exceptions to this--the times when
two narrow values can be combined in their narrow type even to
make a wider result--are handled by "shorten" in build_binary_op. */
switch (ex_form)
{
case RSHIFT_EXPR:
/* We can pass truncation down through right shifting
when the shift count is a nonpositive constant. */
if (TREE_CODE (TREE_OPERAND (expr, 1)) == INTEGER_CST
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& tree_int_cst_sgn (TREE_OPERAND (expr, 1)) <= 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
goto trunc1;
break;
case LSHIFT_EXPR:
/* We can pass truncation down through left shifting
Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.
2002-09-01 20:38:57 +00:00
when the shift count is a nonnegative constant and
the target type is unsigned. */
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_CODE (TREE_OPERAND (expr, 1)) == INTEGER_CST
&& tree_int_cst_sgn (TREE_OPERAND (expr, 1)) >= 0
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& TYPE_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
&& TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST)
{
/* If shift count is less than the width of the truncated type,
really shift. */
if (tree_int_cst_lt (TREE_OPERAND (expr, 1), TYPE_SIZE (type)))
/* In this case, shifting is like multiplication. */
goto trunc1;
else
{
/* If it is >= that width, result is zero.
Handling this with trunc1 would give the wrong result:
(int) ((long long) a << 32) is well defined (as 0)
but (int) a << 32 is undefined and would get a
warning. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree t = build_int_cst (type, 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
/* If the original expression had side-effects, we must
preserve it. */
if (TREE_SIDE_EFFECTS (expr))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return build2 (COMPOUND_EXPR, type, expr, 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
else
return t;
}
}
break;
case MAX_EXPR:
case MIN_EXPR:
case MULT_EXPR:
{
tree arg0 = get_unwidened (TREE_OPERAND (expr, 0), type);
tree arg1 = get_unwidened (TREE_OPERAND (expr, 1), type);
/* Don't distribute unless the output precision is at least as big
as the actual inputs. Otherwise, the comparison of the
truncated values will be wrong. */
if (outprec >= TYPE_PRECISION (TREE_TYPE (arg0))
&& outprec >= TYPE_PRECISION (TREE_TYPE (arg1))
/* If signedness of arg0 and arg1 don't match,
we can't necessarily find a type to compare them in. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
&& (TYPE_UNSIGNED (TREE_TYPE (arg0))
== TYPE_UNSIGNED (TREE_TYPE (arg1))))
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
goto trunc1;
break;
}
case PLUS_EXPR:
case MINUS_EXPR:
case BIT_AND_EXPR:
case BIT_IOR_EXPR:
case BIT_XOR_EXPR:
trunc1:
{
tree arg0 = get_unwidened (TREE_OPERAND (expr, 0), type);
tree arg1 = get_unwidened (TREE_OPERAND (expr, 1), type);
if (outprec >= BITS_PER_WORD
|| TRULY_NOOP_TRUNCATION (outprec, inprec)
|| inprec > TYPE_PRECISION (TREE_TYPE (arg0))
|| inprec > TYPE_PRECISION (TREE_TYPE (arg1)))
{
/* Do the arithmetic in type TYPEX,
then convert result to TYPE. */
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
tree typex = 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
/* Can't do arithmetic in enumeral types
so use an integer type that will hold the values. */
if (TREE_CODE (typex) == ENUMERAL_TYPE)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
typex = lang_hooks.types.type_for_size
(TYPE_PRECISION (typex), TYPE_UNSIGNED (typex));
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
/* But now perhaps TYPEX is as wide as INPREC.
In that case, do nothing special here.
(Otherwise would recurse infinitely in convert. */
if (TYPE_PRECISION (typex) != inprec)
{
/* Don't do unsigned arithmetic where signed was wanted,
or vice versa.
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Exception: if both of the original operands were
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
unsigned then we can safely do the work as unsigned.
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
Exception: shift operations take their type solely
from the first argument.
Exception: the LSHIFT_EXPR case above requires that
we perform this operation unsigned lest we produce
signed-overflow undefinedness.
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
And we may need to do it as unsigned
if we truncate to the original size. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (TYPE_UNSIGNED (TREE_TYPE (expr))
|| (TYPE_UNSIGNED (TREE_TYPE (arg0))
&& (TYPE_UNSIGNED (TREE_TYPE (arg1))
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
|| ex_form == LSHIFT_EXPR
|| ex_form == RSHIFT_EXPR
|| ex_form == LROTATE_EXPR
|| ex_form == RROTATE_EXPR))
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
|| ex_form == LSHIFT_EXPR
/* If we have !flag_wrapv, and either ARG0 or
ARG1 is of a signed type, we have to do
PLUS_EXPR or MINUS_EXPR in an unsigned
type. Otherwise, we would introduce
signed-overflow undefinedness. */
|| ((!TYPE_OVERFLOW_WRAPS (TREE_TYPE (arg0))
|| !TYPE_OVERFLOW_WRAPS (TREE_TYPE (arg1)))
&& (ex_form == PLUS_EXPR
|| ex_form == MINUS_EXPR)))
typex = lang_hooks.types.unsigned_type (typex);
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
else
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
typex = lang_hooks.types.signed_type (typex);
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 convert (type,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
fold_build2 (ex_form, typex,
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
convert (typex, arg0),
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
convert (typex, arg1)));
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;
case NEGATE_EXPR:
case BIT_NOT_EXPR:
/* This is not correct for ABS_EXPR,
since we must test the sign before truncation. */
{
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
tree typex;
/* Don't do unsigned arithmetic where signed was wanted,
or vice versa. */
if (TYPE_UNSIGNED (TREE_TYPE (expr)))
typex = lang_hooks.types.unsigned_type (type);
else
typex = lang_hooks.types.signed_type (type);
return convert (type,
fold_build1 (ex_form, typex,
convert (typex,
TREE_OPERAND (expr, 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
}
case NOP_EXPR:
Gcc 3.3.1-pre as of 2003-07-11.
2003-07-11 03:40:53 +00:00
/* Don't introduce a
"can't convert between vector values of different size" error. */
if (TREE_CODE (TREE_TYPE (TREE_OPERAND (expr, 0))) == VECTOR_TYPE
&& (GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (TREE_OPERAND (expr, 0))))
!= GET_MODE_SIZE (TYPE_MODE (type))))
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
/* If truncating after truncating, might as well do all at once.
If truncating after extending, we may get rid of wasted work. */
return convert (type, get_unwidened (TREE_OPERAND (expr, 0), type));
case COND_EXPR:
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
/* It is sometimes worthwhile to push the narrowing down through
the conditional and never loses. */
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return fold_build3 (COND_EXPR, type, TREE_OPERAND (expr, 0),
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert (type, TREE_OPERAND (expr, 1)),
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
convert (type, TREE_OPERAND (expr, 2)));
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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +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
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return build1 (CONVERT_EXPR, type, 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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case REAL_TYPE:
return build1 (FIX_TRUNC_EXPR, type, 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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case COMPLEX_TYPE:
return convert (type,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
fold_build1 (REALPART_EXPR,
TREE_TYPE (TREE_TYPE (expr)), 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
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
case VECTOR_TYPE:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE (TREE_TYPE (expr))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
error ("can't convert between vector values of different size");
return error_mark_node;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return build1 (VIEW_CONVERT_EXPR, type, expr);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
default:
error ("aggregate value used where an integer was expected");
return convert (type, integer_zero_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
}
/* Convert EXPR to the complex type TYPE in the usual ways. */
tree
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_to_complex (tree type, 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
{
tree subtype = TREE_TYPE (type);
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
switch (TREE_CODE (TREE_TYPE (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
{
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case REAL_TYPE:
case INTEGER_TYPE:
case ENUMERAL_TYPE:
case BOOLEAN_TYPE:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return build2 (COMPLEX_EXPR, type, convert (subtype, expr),
convert (subtype, integer_zero_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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case COMPLEX_TYPE:
{
tree elt_type = TREE_TYPE (TREE_TYPE (expr));
if (TYPE_MAIN_VARIANT (elt_type) == TYPE_MAIN_VARIANT (subtype))
return expr;
else if (TREE_CODE (expr) == COMPLEX_EXPR)
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return fold_build2 (COMPLEX_EXPR, type,
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
convert (subtype, TREE_OPERAND (expr, 0)),
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
convert (subtype, TREE_OPERAND (expr, 1)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
else
{
expr = save_expr (expr);
return
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
fold_build2 (COMPLEX_EXPR, type,
convert (subtype,
fold_build1 (REALPART_EXPR,
TREE_TYPE (TREE_TYPE (expr)),
expr)),
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
convert (subtype,
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
fold_build1 (IMAGPART_EXPR,
TREE_TYPE (TREE_TYPE (expr)),
expr)));
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +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
Virgin import of gcc from EGCS 1.1.2
1999-08-26 09:30:50 +00:00
case POINTER_TYPE:
case REFERENCE_TYPE:
error ("pointer value used where a complex was expected");
return convert_to_complex (type, integer_zero_node);
default:
error ("aggregate value used where a complex was expected");
return convert_to_complex (type, integer_zero_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
}
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
/* Convert EXPR to the vector type TYPE in the usual ways. */
tree
Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00
convert_to_vector (tree type, tree expr)
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
switch (TREE_CODE (TREE_TYPE (expr)))
{
case INTEGER_TYPE:
case VECTOR_TYPE:
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
if (!tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE (TREE_TYPE (expr))))
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
{
error ("can't convert between vector values of different size");
return error_mark_node;
}
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return build1 (VIEW_CONVERT_EXPR, type, expr);
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
default:
error ("can't convert value to a vector");
GCC 4.2.0 release.
2007-05-19 01:19:51 +00:00
return error_mark_node;
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0. These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
2002-02-01 18:16:02 +00:00
}
}
Reference in New Issue Copy Permalink