This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[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: Wed, 14 Nov 2012 16:47:43 +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 #8 from uros at gcc dot gnu.org 2012-11-14 16:47:43 UTC ---
Author: uros
Date: Wed Nov 14 16:47:29 2012
New Revision: 193503
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193503
Log:
PR target/47440
* config/i386/i386.c (gate_insert_vzeroupper): New function.
(rest_of_handle_insert_vzeroupper): Ditto.
(struct rtl_opt_pass pass_insert_vzeroupper): New.
(ix86_option_override): Register vzeroupper insertion pass here.
(ix86_check_avx256_register): Handle SUBREGs properly.
(ix86_init_machine_status): Remove optimize_mode_switching[AVX_U128]
initialization.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c