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re PR middle-end/69547 (no-op array initializer emits an empty loop)
authorRichard Biener <rguenther@suse.de>
Fri, 29 Jan 2016 11:21:19 +0000 (11:21 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Fri, 29 Jan 2016 11:21:19 +0000 (11:21 +0000)
commitd4abfcc561b77aa2ac7328d965b08efd1b2561b2
treed41c277b595780348ce12b51329c77c3442d46d6tree | snapshot
parent16b77b321eb72c5e2e1ec3628c035df80bef8534commit | diff
re PR middle-end/69547 (no-op array initializer emits an empty loop)

2016-01-29  Richard Biener  <rguenther@suse.de>

PR tree-optimization/69547
* tree-ssa-dce.c (mark_aliased_reaching_defs_necessary_1):
Do not mark clobbers necessary.
(mark_all_reaching_defs_necessary_1): Likewise.

* g++.dg/tree-ssa/pr69547.C: New testcase.

From-SVN: r232976
gcc/ChangeLog diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/g++.dg/tree-ssa/pr69547.C [new file with mode: 0644] blob
gcc/tree-ssa-dce.c diff | blob | blame | history
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