[Bug target/65697] __atomic memory barriers not strong enough for __sync builtins

[mwahab at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65697

--- Comment #58 from mwahab at gcc dot gnu.org ---
Author: mwahab
Date: Mon Jun  1 15:18:19 2015
New Revision: 223983

URL: https://gcc.gnu.org/viewcvs?rev=223983&root=gcc&view=rev
Log:
        PR target/65697
        * config/aarch64/aarch64.c (aarch64_emit_post_barrier):New.
        (aarch64_split_atomic_op): Check for __sync memory models, emit
        appropriate initial loads and final barriers.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/aarch64/aarch64.c