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[Loop Vectorizer] Support predication of div/rem
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div/rem instructions in basic blocks that require predication currently prevent
vectorization. This patch extends the existing mechanism for predicating stores
to handle other instructions and leverages it to predicate divs and rems.

Differential Revision: https://reviews.llvm.org/D22918

llvm-svn: 279620
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@aniragil
aniragil committed Aug 24, 2016
1 parent 6392b8d commit 550148b
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