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[Bug target/69994] [6 regression] test case gfortran.dg/reassoc_6.f fails starting with r233669
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 29 Feb 2016 15:31:23 +0000
- Subject: [Bug target/69994] [6 regression] test case gfortran.dg/reassoc_6.f fails starting with r233669
- Auto-submitted: auto-generated
- References: <bug-69994-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69994
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Feb 29 15:30:50 2016
New Revision: 233816
URL: https://gcc.gnu.org/viewcvs?rev=233816&root=gcc&view=rev
Log:
2016-02-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/69994
* tree-ssa-reassoc.c (gimple_nop_conversion_p): New function.
(get_unary_op): Look through nop conversions.
(ops_equal_values_p): New function, look for equality diregarding
nop conversions.
(eliminate_plus_minus_pair): Use ops_equal_values_p
(repropagate_negates): Do not use get_unary_op here.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-reassoc.c