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Commit 74c9ed91 authored by Evan Cheng's avatar Evan Cheng
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With sse3 and when the source is a load or has multiple uses, favors movddup... 

With sse3 and when the source is a load or has multiple uses, favors movddup over shuffp*, pshufd, etc. Without sse3 or when the source is from a register, make use of movlhps

llvm-svn: 56620
parent c50ada2f
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