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re PR tree-optimization/58223 (wrong code at -O3 on x86_64-linux-gnu)
authorRichard Biener <rguenther@suse.de>
Fri, 30 Aug 2013 07:48:53 +0000 (07:48 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Fri, 30 Aug 2013 07:48:53 +0000 (07:48 +0000)
commit062ef2c8f95540fd997e57f6d8945d307ededc81
treee253dd1559062674db97a0032cec9bd921b7d2a3tree
parent7a764c608a4f0cb9eb7b6430a0ccf1aa36bbd53ecommit | diff
re PR tree-optimization/58223 (wrong code at -O3 on x86_64-linux-gnu)

2013-08-30  Richard Biener  <rguenther@suse.de>

PR tree-optimization/58223
* tree-loop-distribution.c (has_anti_dependence): Rename to ...
(has_anti_or_output_dependence): ... this and adjust to also
look for output dependences.
(mark_nodes_having_upstream_mem_writes): Adjust.
(rdg_flag_uses): Likewise.

* gcc.dg/torture/pr58223.c: New testcase.
* gcc.dg/tree-ssa/ldist-16.c: Flip expected behavior.

From-SVN: r202096
gcc/ChangeLog diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.dg/torture/pr58223.c [new file with mode: 0644] blob
gcc/testsuite/gcc.dg/tree-ssa/ldist-16.c diff | blob | history
gcc/tree-loop-distribution.c diff | blob | history