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[Bug target/59021] [4.9 regression] new vzeroupper instructions generated with -mavx
- From: "uros at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 06 Nov 2013 19:37:15 +0000
- Subject: [Bug target/59021] [4.9 regression] new vzeroupper instructions generated with -mavx
- Auto-submitted: auto-generated
- References: <bug-59021-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59021
--- Comment #5 from uros at gcc dot gnu.org ---
Author: uros
Date: Wed Nov 6 19:37:12 2013
New Revision: 204464
URL: http://gcc.gnu.org/viewcvs?rev=204464&root=gcc&view=rev
Log:
PR target/59021
* config/i386/i386.c (ix86_avx_u128_mode_needed): Require
AVX_U128_DIRTY mode for call_insn RTXes that use AVX256 registers.
(ix86_avx_u128_mode_needed): Return AVX_U128_DIRTY mode for call_insn
RTXes that return in AVX256 register.
testsuite/ChangeLog:
PR target/59021
* gcc.target/i386/pr59021.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr59021.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog