[Bug target/58945] Improve atomic_compare_and_swap*_doubleword pattern

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58945

--- Comment #9 from uros at gcc dot gnu.org ---
Author: uros
Date: Tue Mar 31 17:06:37 2015
New Revision: 221798

URL: https://gcc.gnu.org/viewcvs?rev=221798&root=gcc&view=rev
Log:
    PR target/58945
    * config/i386/sync.md (atomic_compare_and_swap<dwi>_doubleword):
    Do not split operands 0 and operands 2 to halfmode.
    (atomic_compare_and_swap<mode>): Update for
    atomic_compare_and_swap<dwi>_doubleword changes.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sync.md