[PATCH] D98587: [X86] Optimize vXi8 MULHS on targets where we can't sign_extend to the next register size.

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 332077.
craig.topper added a comment.

Rebase test cases.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D98587/new/

https://reviews.llvm.org/D98587

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/combine-sdiv.ll
  llvm/test/CodeGen/X86/vec_smulo.ll
  llvm/test/CodeGen/X86/vector-idiv-sdiv-128.ll
  llvm/test/CodeGen/X86/vector-idiv-sdiv-256.ll
  llvm/test/CodeGen/X86/vector-idiv-sdiv-512.ll

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