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Commit 860ab496 authored by Craig Topper's avatar Craig Topper
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[X86] Teach X86InstrInfo::commuteInstructionImpl to use MOVSD/MOVSS for BLEND... 

[X86] Teach X86InstrInfo::commuteInstructionImpl to use MOVSD/MOVSS for BLEND under optsize when the immediate allows it.

Isel currently emits movss/movsd a lot of the time and an accidental double commute turns it into a blend.

Ideally we'd select blend directly in isel under optspeed and not rely on the double commute to create blend.

llvm-svn: 336731
parent a929fd7f
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