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[Bug target/47440] Use LCM for vzeroupper insertion
- 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: Sun, 11 Nov 2012 19:17:22 +0000
- Subject: [Bug target/47440] Use LCM for vzeroupper insertion
- Auto-submitted: auto-generated
- References: <bug-47440-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47440
--- Comment #7 from uros at gcc dot gnu.org 2012-11-11 19:17:22 UTC ---
Author: uros
Date: Sun Nov 11 19:17:17 2012
New Revision: 193409
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193409
Log:
PR target/47440
* config/i386/i386.c (check_avx256_stores): Remove.
(ix86_check_avx256_register): New.
(ix86_avx_u128_mode_needed): Use ix86_check_avx256_register.
Check the whole RTX for 256bit registers using for_each_rtx.
(ix86_check_avx_stores): New.
(ix86_avx_u128_mode_after): Change mode of CALL RTX to AVX_U128_CLEAN
if there are no 256bit registers used in the function return register.
(ix86_avx_u128_mode_entry): Use ix86_check_avx256_register.
(ix86_avx_u128_mode_exit): Ditto.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c