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[Bug other/18665] [3.4/4.0 Regression] -ftrapv borks up simple integer arithmetic
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Dec 2004 12:31:06 -0000
- Subject: [Bug other/18665] [3.4/4.0 Regression] -ftrapv borks up simple integer arithmetic
- References: <20041124222749.18665.skunk@iskunk.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-12-15 12:31 -------
Subject: Bug 18665
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: ebotcazou@gcc.gnu.org 2004-12-15 12:30:47
Modified files:
gcc : libgcc2.c libgcc2.h libgcc-std.ver
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg: ftrapv-2.c
Log message:
PR other/18665
* libgcc-std.ver (GCC_3.4.4): Inherit from GCC_3.4.2.
Export __absvti2, __addvti3, __mulvti3, __negvti2 and __subvti3.
* libgcc2.c (__addvsi3): Rename to __addvSI3.
New version if COMPAT_SIMODE_TRAPPING_ARITHMETIC.
(__addvdi3): Rename to __addvDI3.
(__subvsi3): Rename to __subvSI3. Use word type for the result.
New version if COMPAT_SIMODE_TRAPPING_ARITHMETIC.
(__subvdi3): Rename to __subvDI3.
(_mulvsi3): Rename to _mulvSI3.
New version if COMPAT_SIMODE_TRAPPING_ARITHMETIC.
(_mulvdi3): Rename to _mulvDI3.
(__negvsi2): Rename to __negvSI2.
New version if COMPAT_SIMODE_TRAPPING_ARITHMETIC.
(__negvdi2): Rename to __negvDI2.
(__absvsi2): Rename to __absvSI2.
New version if COMPAT_SIMODE_TRAPPING_ARITHMETIC.
(__absvdi2): Rename to __absvDI2.
* libgcc2.h (64-bit targets): Define COMPAT_SIMODE_TRAPPING_ARITHMETIC.
(__absvSI2, __addvSI3, __subvSI3, __mulvSI3, __negvSI2, __absvDI2,
__addvDI3, __subvDI3, __mulvDI3, __negvDI2): Define to the appropriate
symbol and declare.
(__absvsi2, __addvsi3, __subvsi3, __mulvsi3, __negvsi2): Declare if
COMPAT_SIMODE_TRAPPING_ARITHMETIC.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/libgcc2.c.diff?cvsroot=gcc&r1=1.178&r2=1.179
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/libgcc2.h.diff?cvsroot=gcc&r1=1.32&r2=1.33
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/libgcc-std.ver.diff?cvsroot=gcc&r1=1.26&r2=1.27
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4759&r2=1.4760
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/ftrapv-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18665