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Commit 4952e668 authored by Chen Zheng's avatar Chen Zheng
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[InstCombine] canonicalize MUL with NEG operand 

-X * Y --> -(X * Y)
X * -Y --> -(X * Y)

Differential Revision: https://reviews.llvm.org/D55961

llvm-svn: 350185
parent 745983ba
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