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[Bug target/70329] wrong code with -mavx512bw and 64byte vectors
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 22 Mar 2016 08:29:20 +0000
- Subject: [Bug target/70329] wrong code with -mavx512bw and 64byte vectors
- Auto-submitted: auto-generated
- References: <bug-70329-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70329
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Mar 22 08:28:49 2016
New Revision: 234394
URL: https://gcc.gnu.org/viewcvs?rev=234394&root=gcc&view=rev
Log:
PR target/70329
* config/i386/i386.c (ix86_expand_vecop_qihi): Don't bother computing
d.perm[i] for i >= d.nelt. If not full_interleave, compute d.perm[i]
in a way that works also for AVX512BW.
* gcc.target/i386/avx512bw-pr70329-1.c: New test.
* gcc.target/i386/avx512bw-pr70329-2.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/avx512bw-pr70329-1.c
trunk/gcc/testsuite/gcc.target/i386/avx512bw-pr70329-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog