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archived-llvm/test/CodeGen/X86
Michael Kuperstein 53c51fa032 [X86] Match PSADBW in straight-line code
Up until now, we only had code to match PSADBW patterns that look like what
comes out of the loop vectorizer - a partial reduction inside the loop body
that gets fed into a horizontal operation in a different basic block.

This adds support for straight-line patterns, like those generated by the
SLP vectorizer.

Differential Revision: https://reviews.llvm.org/D22889


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277219 91177308-0d34-0410-b5e6-96231b3b80d8
2016-07-29 21:45:51 +00:00
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