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[Bug middle-end/54520] [4.8 Regression] ice in merge_latch_edges with -O3
- 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, 10 Sep 2012 14:10:14 +0000
- Subject: [Bug middle-end/54520] [4.8 Regression] ice in merge_latch_edges with -O3
- Auto-submitted: auto-generated
- References: <bug-54520-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54520
--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-10 14:10:14 UTC ---
Author: rguenth
Date: Mon Sep 10 14:10:09 2012
New Revision: 191141
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191141
Log:
2012-09-10 Richard Guenther <rguenther@suse.de>
PR tree-optimization/54520
* tree-ssa-threadupdate.c (def_split_header_continue_p):
Properly consider sub-loops.
* gcc.dg/torture/pr54520.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr54520.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-threadupdate.c