[Bug middle-end/67120] [6 Regression] wrong code for volatile pointers at -O1 and above on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67120

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Aug  5 12:47:59 2015
New Revision: 226623

URL: https://gcc.gnu.org/viewcvs?rev=226623&root=gcc&view=rev
Log:
2015-08-05  Richard Biener  <rguenther@suse.de>

        PR middle-end/67120
        * match.pd: Compare address bases with == if they are decls
        or SSA names, not operand_equal_p.  Otherwise fail.

        * gcc.dg/torture/pr67120.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr67120.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/match.pd
    trunk/gcc/testsuite/ChangeLog