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| author | Richard Henderson <rth@redhat.com> | 2007-03-21 08:52:23 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2007-03-21 08:52:23 -0700 |
| commit | b5cf27d7ec42156b78369cc0bdaabc34d1885191 (patch) | |
| tree | 3fd4694ce5ed120d2892be28b11fb013bb783908 /gcc | |
| parent | cb717c409821f271ef6119e784b52ee48bf29fa0 (diff) | |
| download | gcc-b5cf27d7ec42156b78369cc0bdaabc34d1885191.zip gcc-b5cf27d7ec42156b78369cc0bdaabc34d1885191.tar.gz gcc-b5cf27d7ec42156b78369cc0bdaabc34d1885191.tar.bz2 | |
re PR target/31245 (SSE2 generation bug with 4.1.2 and -O3)
PR target/31245
* config/i386/emmintrin.h (__m128i, __m128d): Mark may_alias.
* config/i386/mmintrin.h (__m64): Likewise.
* config/i386/xmmintrin.h (__m128): Likewise.
From-SVN: r123112
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/i386/emmintrin.h | 6 | ||||
| -rw-r--r-- | gcc/config/i386/mmintrin.h | 7 | ||||
| -rw-r--r-- | gcc/config/i386/xmmintrin.h | 5 |
4 files changed, 18 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5d93c7d..a53840e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2007-03-21 Richard Henderson <rth@redhat.com> + + PR target/31245 + * config/i386/emmintrin.h (__m128i, __m128d): Mark may_alias. + * config/i386/mmintrin.h (__m64): Likewise. + * config/i386/xmmintrin.h (__m128): Likewise. + 2007-03-21 Richard Sandiford <richard@codesourcery.com> * config/vxworks.h (VXWORKS_ADDITIONAL_CPP_SPEC): Remove -D options. diff --git a/gcc/config/i386/emmintrin.h b/gcc/config/i386/emmintrin.h index 43a6262..002e16c 100644 --- a/gcc/config/i386/emmintrin.h +++ b/gcc/config/i386/emmintrin.h @@ -44,8 +44,10 @@ typedef int __v4si __attribute__ ((__vector_size__ (16))); typedef short __v8hi __attribute__ ((__vector_size__ (16))); typedef char __v16qi __attribute__ ((__vector_size__ (16))); -typedef __v2di __m128i; -typedef __v2df __m128d; +/* The Intel API is flexible enough that we must allow aliasing with other + vector types, and their scalar components. */ +typedef long long __m128i __attribute__ ((__vector_size__ (16), __may_alias__)); +typedef double __m128d __attribute__ ((__vector_size__ (16), __may_alias__)); /* Create a selector for use with the SHUFPD instruction. */ #define _MM_SHUFFLE2(fp1,fp0) \ diff --git a/gcc/config/i386/mmintrin.h b/gcc/config/i386/mmintrin.h index 1a74271..052198d 100644 --- a/gcc/config/i386/mmintrin.h +++ b/gcc/config/i386/mmintrin.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004, 2005, 2006 +/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. This file is part of GCC. @@ -34,8 +34,9 @@ #ifndef __MMX__ # error "MMX instruction set not enabled" #else -/* The data type intended for user use. */ -typedef int __m64 __attribute__ ((__vector_size__ (8))); +/* The Intel API is flexible enough that we must allow aliasing with other + vector types, and their scalar components. */ +typedef int __m64 __attribute__ ((__vector_size__ (8), __may_alias__)); /* Internal data types for implementing the intrinsics. */ typedef int __v2si __attribute__ ((__vector_size__ (8))); diff --git a/gcc/config/i386/xmmintrin.h b/gcc/config/i386/xmmintrin.h index 48b177c..57ef330 100644 --- a/gcc/config/i386/xmmintrin.h +++ b/gcc/config/i386/xmmintrin.h @@ -41,8 +41,9 @@ /* Get _mm_malloc () and _mm_free (). */ #include <mm_malloc.h> -/* The data type intended for user use. */ -typedef float __m128 __attribute__ ((__vector_size__ (16))); +/* The Intel API is flexible enough that we must allow aliasing with other + vector types, and their scalar components. */ +typedef float __m128 __attribute__ ((__vector_size__ (16), __may_alias__)); /* Internal data types for implementing the intrinsics. */ typedef float __v4sf __attribute__ ((__vector_size__ (16))); |