[Bug testsuite/97301] [11 regression] gcc.target/powerpc/sse-movlps-1.c fails after r11-3434
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Apr 20 23:31:30 GMT 2021
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97301
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:
https://gcc.gnu.org/g:669d843e4f8e40bcf2cddce92cf8acc3d4851bc7
commit r9-9409-g669d843e4f8e40bcf2cddce92cf8acc3d4851bc7
Author: Jakub Jelinek <jakub@redhat.com>
Date: Sat Jan 23 09:41:58 2021 +0100
rs6000: Fix up __m64 typedef in mmintrin.h [PR97301]
The x86 __m64 type is defined as:
/* 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__));
and so matches the comment above it in that reads and stores through
pointers to __m64 can alias anything.
But in the rs6000 headers that is the case only for __m128, but not __m64.
The following patch adds that attribute, which fixes the
FAIL: gcc.target/powerpc/sse-movhps-1.c execution test
FAIL: gcc.target/powerpc/sse-movlps-1.c execution test
regressions that appeared when Honza improved ipa-modref.
2021-01-23 Jakub Jelinek <jakub@redhat.com>
PR testsuite/97301
* config/rs6000/mmintrin.h (__m64): Add __may_alias__ attribute.
(cherry picked from commit db9a3ce7b83ce3ed3e0ffe7eb7a918595640e161)
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