[X86] Allow more cmpps/pd immediate encodings to be commuted during isel.

The code that checks the immediate wasn't masking to the lower 3-bits like the code in X86InstrInfo.cpp that's used by the peephole pass does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322060 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed