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Move matching for x86 BMI BLSI/BLSMSK/BLSR instructions to isel patterns…

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Committed
ctopperFeb 4 2014, 11:09 PM
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rL200823: AVX-512: Added intrinsic for cvtph2ps.
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Description

Move matching for x86 BMI BLSI/BLSMSK/BLSR instructions to isel patterns instead of DAG combine. This weakens the ability to fold loads with them because we aren't able to match patterns that load the same thing twice. But maybe we should fix that if we care. The peephole optimizer will be able to fold some loads in its absense.

rL200824

llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

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llvm/trunk/lib/Target/X86/X86ISelLowering.h

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llvm/trunk/lib/Target/X86/X86InstrInfo.td

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