[Bug rtl-optimization/54524] [4.6/4.7/4.8 Regression] Spurious add on sum of bitshifts (forward-propagate issue)
pinskia at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Nov 2 23:33:00 GMT 2012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54524
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-11-02 23:32:38 UTC ---
Author: pinskia
Date: Fri Nov 2 23:32:32 2012
New Revision: 193111
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193111
Log:
2012-11-02 Andrew Pinski <apinski@cavium.com>
PR rtl-opt/54524
* simplify-rtx.c (simplify_relational_operation_1): Don't simplify
(LTU/GEU (PLUS a 0) 0) into (GEU/LTU a 0) since they are not
equivalent.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/simplify-rtx.c
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