r166863 - in /trunk/gcc: ChangeLog tree-ssa-ali...

[jakub@gcc.gnu.org]

Author: jakub
Date: Wed Nov 17 11:15:55 2010
New Revision: 166863

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166863
Log:
	PR middle-end/45838
	* tree-ssa-alias.c (ref_maybe_used_by_call_p_1,
	call_may_clobber_ref_p_1): Return true for __sync_* and some
	OpenMP builtins that act as threading barriers.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-alias.c