re PR tree-optimization/58653 (wrong code (segfaults) at -O3 on x86_64-linux-gnu...
authorRichard Biener <rguenther@suse.de>
Wed, 6 Nov 2013 15:00:16 +0000 (15:00 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Wed, 6 Nov 2013 15:00:16 +0000 (15:00 +0000)
commit9f2b860bed25db61d9093d87fb85ab2740823346
treed7d1b4b83b4cb7b6059802f4ddfa490e22fd8041
parent28d31e407447df98a843559b204bc01c40577555
re PR tree-optimization/58653 (wrong code (segfaults) at -O3 on x86_64-linux-gnu in 64-bit mode (affecting gcc 4.6 to trunk))

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.

From-SVN: r204458
gcc/ChangeLog
gcc/testsuite/ChangeLog
gcc/testsuite/gcc.dg/tree-ssa/predcom-6.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/tree-ssa/predcom-7.c [new file with mode: 0644]
gcc/tree-predcom.c