[PATCH] D90613: [x86] add AVX2 cost model entries for maxnum of 256-bit vectors

[Sanjay Patel via Phabricator via llvm-commits]

spatel created this revision.
spatel added reviewers: RKSimon, pengfei, craig.topper.
Herald added subscribers: hiraditya, mcrosier.
Herald added a project: LLVM.
spatel requested review of this revision.

As noticed in D90554 <https://reviews.llvm.org/D90554> , the AVX2 costs for 256-bit vectors did not include FMAXNUM entries, so we fell back to AVX1 which assumes those ops will be split into 128-bit halves.


https://reviews.llvm.org/D90613

Files:
  llvm/lib/Target/X86/X86TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/X86/fmaxnum.ll
  llvm/test/Analysis/CostModel/X86/fminnum.ll

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