[Bug tree-optimization/58653] [4.7/4.8/4.9 Regression] wrong code (segfaults) at -O3 on x86_64-linux-gnu in 64-bit mode (affecting gcc 4.6 to trunk)
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Nov 6 15:02:00 GMT 2013
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58653
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Nov 6 15:00:16 2013
New Revision: 204458
URL: http://gcc.gnu.org/viewcvs?rev=204458&root=gcc&view=rev
Log:
2013-11-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/58653
* tree-predcom.c (ref_at_iteration): Rewrite to generate
a MEM_REF.
(prepare_initializers_chain): Adjust.
* gcc.dg/tree-ssa/predcom-6.c: New testcase.
* gcc.dg/tree-ssa/predcom-7.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/predcom-6.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/predcom-7.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-predcom.c
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