[Bug target/55492] __atomic_load doesn't match ACQUIRE memory model

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55492

--- Comment #6 from Richard Henderson <rth at gcc dot gnu.org> 2012-12-13 21:17:55 UTC ---
Author: rth
Date: Thu Dec 13 21:17:52 2012
New Revision: 194491

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194491
Log:
PR middle-end/55492

        * optabs.c (expand_atomic_load): Emit acquire barrier after the load.

Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/optabs.c