[Bug middle-end/49893] [4.7 Regression] -O3 generates wrong code for volatile

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49893

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-29 
09:54:29 UTC ---
Author: rguenth
Date: Fri Jul 29 09:54:23 2011
New Revision: 176921

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176921
Log:
2011-07-29  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/49893
    * tree-predcom.c (suitable_reference_p): Volatile references
    are not suitable.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-predcom.c