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[Bug tree-optimization/61607] DOM missed jump threading and destroyed loops
- 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: Thu, 26 Jun 2014 07:44:42 +0000
- Subject: [Bug tree-optimization/61607] DOM missed jump threading and destroyed loops
- Auto-submitted: auto-generated
- References: <bug-61607-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61607
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Jun 26 07:44:10 2014
New Revision: 212011
URL: https://gcc.gnu.org/viewcvs?rev=212011&root=gcc&view=rev
Log:
2014-06-26 Richard Biener <rguenther@suse.de>
PR tree-optimization/61607
* tree-ssa-threadupdate.c (ssa_redirect_edges): Cancel the
loop if we redirected its latch edge.
(thread_block_1): Do not cancel loops prematurely.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-threadupdate.c