http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60172
Bug ID: 60172
Summary: ARM performance regression from trunk@207239
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: joey.ye at arm dot com
Dhrystone on Cortex-M4 drops by 1.5% with this patch:
2014-01-29 Richard Biener <rguent...@suse.de>
PR tree-optimization/58742
* tree-ssa-forwprop.c (associate_pointerplus): Rename to
associate_pointerplus_align.
(associate_pointerplus_diff): New function.
(associate_pointerplus): Likewise. Call associate_pointerplus_align
and associate_pointerplus_diff.
* gcc.dg/pr58742-1.c: New testcase.
* gcc.dg/pr58742-2.c: Likewise.
* gcc.dg/pr58742-3.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@207239
Options used: -O2 -fno-inline -fno-common
