[Bug tree-optimization/54132] [4.8 Regression] Incorrect loop transformation with -ftree-loop-distribute-patterns
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Sep 19 08:59:00 GMT 2012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54132
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-19 08:59:18 UTC ---
Author: rguenth
Date: Wed Sep 19 08:59:06 2012
New Revision: 191463
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191463
Log:
2012-09-19 Richard Guenther <rguenther@suse.de>
PR tree-optimization/54132
* tree-loop-distribution.c (classify_partition): Properly
check dependences for memmove.
* tree-data-ref.h (compute_affine_dependence): Declare.
* tree-data-ref.c (compute_affine_dependence): Export.
* gcc.dg/tree-ssa/ldist-21.c: New testcase.
* gcc.dg/torture/pr54132.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr54132.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-21.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-data-ref.c
trunk/gcc/tree-data-ref.h
trunk/gcc/tree-loop-distribution.c
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