[Bug regression/50472] Volatile qualification in data is not enough to avoid optimization over pointer to data

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50472

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-09-26 
12:59:02 UTC ---
Author: rguenth
Date: Mon Sep 26 12:58:35 2011
New Revision: 179196

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179196
Log:
2011-09-26  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/50472
    * gimple-fold.c (fold_const_aggregate_ref_1): Do not fold
    volatile references.

    * gcc.dg/torture/pr50472.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr50472.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-fold.c
    trunk/gcc/testsuite/ChangeLog