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[Bug tree-optimization/60903] [4.8/4.9/4.10 Regression] ICE: in verify_loop_structure, at cfgloop.c:1647: : edge from 13 to 14 should be marked irreducible
- 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, 23 Apr 2014 11:25:59 +0000
- Subject: [Bug tree-optimization/60903] [4.8/4.9/4.10 Regression] ICE: in verify_loop_structure, at cfgloop.c:1647: : edge from 13 to 14 should be marked irreducible
- Auto-submitted: auto-generated
- References: <bug-60903-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60903
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Apr 23 11:25:27 2014
New Revision: 209694
URL: http://gcc.gnu.org/viewcvs?rev=209694&root=gcc&view=rev
Log:
2014-04-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/60903
* tree-ssa-loop-im.c (analyze_memory_references): Remove
commented code block.
(execute_sm_if_changed): Properly apply IRREDUCIBLE_LOOP
loop flags to newly created BBs and edges.
* gcc.dg/torture/pr60903.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr60903.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-loop-im.c