[Bug tree-optimization/62031] [4.8/4.9/5 Regression] Different results between O2 and O2 -fpredictive-commoning
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Aug 15 07:51:00 GMT 2014
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62031
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Aug 15 07:50:40 2014
New Revision: 214006
URL: https://gcc.gnu.org/viewcvs?rev=214006&root=gcc&view=rev
Log:
2014-08-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/62031
* tree-data-ref.c (dr_analyze_indices): Do not set
DR_UNCONSTRAINED_BASE.
(dr_may_alias_p): All indirect accesses have to go the
formerly DR_UNCONSTRAINED_BASE path.
* tree-data-ref.h (struct indices): Remove
unconstrained_base member.
(DR_UNCONSTRAINED_BASE): Remove.
* gcc.dg/torture/pr62031.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr62031.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-data-ref.c
trunk/gcc/tree-data-ref.h
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