[PATCH] D97650: [X86] WIP Optimize SMULO/UMULO for AVX512 mask registers.

[Craig Topper via Phabricator via llvm-commits]

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

This further improves the codegen from D97624 <https://reviews.llvm.org/D97624>.

I'm considering merging this code into the new helper function
from D97624 <https://reviews.llvm.org/D97624>. So we would have Ovf outparam instead of Low. This
would avoid needing to reverse the TRUNCATE since we could
intercept the vXi16 result directly.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97650

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/vec_smulo.ll
  llvm/test/CodeGen/X86/vec_umulo.ll

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