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[Bug tree-optimization/54491] interval membership optimization
- 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: Wed, 05 Sep 2012 14:21:47 +0000
- Subject: [Bug tree-optimization/54491] interval membership optimization
- Auto-submitted: auto-generated
- References: <bug-54491-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54491
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-09-05
Component|c |tree-optimization
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-05 14:21:47 UTC ---
You are basically requesting 12 < a < 32 to be converted to
(unsigned) a - 12 < 20, something fold does but not forwprop or ifcombine.