[Bug middle-end/66110] uint8_t memory access not optimized

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66110

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed May 13 10:53:42 2015
New Revision: 223126

URL: https://gcc.gnu.org/viewcvs?rev=223126&root=gcc&view=rev
Log:
2015-05-13  Richard Biener  <rguent...@suse.de>

        PR middle-end/66110
        * alias.c (alias_sets_conflict_p): Do not treat has_zero_child
        specially.
        * Makefile.in (dfp.o-warn): Add -Wno-strict-aliasing.

        * gcc.dg/alias-2.c: Adjust.
        * gcc.dg/tree-ssa/ssa-dse-17.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-17.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/alias.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/alias-2.c