[X86][AVX512] Tag VPCMP/VPCMPU instruction scheduler classes

Move hardcoded itinerary out to the instruction declarations. Not sure that IIC_SSE_ALU_F32P is the best schedule for integer comparisons, but I'm not going to change it right now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319760 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed