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Subject: [Bug target/47440] Use LCM for vzeroupper insertion
Date: Sun, 11 Nov 2012 19:17:00 -0000
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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