[Bug tree-optimization/46355] [4.5 Regression] ICE: SIGSEGV in create_preheader (cfgloopmanip.c:1336) with -O -fstrict-overflow -ftree-loop-distribution
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Nov 12 15:31:00 GMT 2010
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46355
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-12 14:43:24 UTC ---
Fixed.
--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-12 14:43:25 UTC ---
Author: rguenth
Date: Fri Nov 12 14:43:19 2010
New Revision: 166652
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166652
Log:
2010-11-12 Richard Guenther <rguenther@suse.de>
Backport from mainline
2010-11-09 Richard Guenther <rguenther@suse.de>
PR tree-optimization/46355
* tree-loop-distribution.c (tree_loop_distribution): Do not
distribute loops without a single exit.
* gcc.dg/pr46355.c: New testcase.
2010-11-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/46177
* tree-loop-distribution.c (prop_phis): Use
mark_virtual_phi_result_for_renaming.
* gcc.dg/pr46177.c: New testcase.
2010-11-09 Richard Guenther <rguenther@suse.de>
PR tree-optimization/46177
* tree-loop-distribution.c (prop_phis): Remove.
(generate_builtin): Re-use the old loop exit edge to avoid
needing to update PHI nodes.
* gcc.dg/pr46177-2.c: New testcase.
Added:
branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr46177-2.c
branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr46177.c
branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr46355.c
Modified:
branches/gcc-4_5-branch/gcc/ChangeLog
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
branches/gcc-4_5-branch/gcc/tree-loop-distribution.c
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