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[Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Nov 2009 17:40:06 -0000
- Subject: [Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
- References: <bug-41643-13613@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from jakub at gcc dot gnu dot org 2009-11-07 17:40 -------
Subject: Bug 41643
Author: jakub
Date: Sat Nov 7 17:39:48 2009
New Revision: 153996
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153996
Log:
PR tree-optimization/41643
Backport from mainline
2009-04-03 Richard Guenther <rguenther@suse.de>
* tree-tailcall.c (tree_optimize_tail_calls_1): Also split the
edge from the entry block if we have degenerate PHI nodes in
the first basic block.
* gcc.dg/pr41643.c: New test.
Added:
branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr41643.c
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
branches/gcc-4_4-branch/gcc/tree-tailcall.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643