[x86] replace integer logic ops with packed SSE FP logic ops
If we have an operand to a bitwise logic op that's already in an XMM register and the result is going to be sent to an XMM register, then use an SSE logic op to avoid moves between the integer and vector register files. Related commits: http://reviews.llvm.org/rL248395 http://reviews.llvm.org/rL248399 http://reviews.llvm.org/rL248404 http://reviews.llvm.org/rL248409 http://reviews.llvm.org/rL248415 This should solve PR22428: https://llvm.org/bugs/show_bug.cgi?id=22428 llvm-svn: 251378
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