| commit | 8c888e8a5755ad49c2b56a94469f801ec18311b7 | [log] [tgz] |
|---|---|---|
| author | Charlie Turner <charlie.turner@arm.com> | Wed Dec 16 18:23:44 2015 +0000 |
| committer | Charlie Turner <charlie.turner@arm.com> | Wed Dec 16 18:23:44 2015 +0000 |
| tree | 9f22468d91c31cf158412014dc367248cd6eb333 | |
| parent | 3a06c2dfa3596329b4076b43e383694e2e62ae19 [diff] |
[SLPVectorizer] Ensure dominated reduction values. When considering incoming values as part of a reduction phi, ensure the incoming value is dominated by said phi. Failing to ensure this property causes miscompiles. Fixes PR25787. Many thanks to Mattias Eriksson for reporting, reducing and analyzing the problem for me. Differential Revision: http://reviews.llvm.org/D15580 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255792 91177308-0d34-0410-b5e6-96231b3b80d8