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Commit bf662901 authored by Karthik Bhat's avatar Karthik Bhat
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Lower multiply-negate operation to mneg on AArch64 

This patch pattern matches code such as-
neg	 w8, w8
mul	 w8, w9, w8
to
mneg	 w8, w8, w9

Review: http://reviews.llvm.org/D6754
llvm-svn: 224706
parent 2645d339
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