[PATCH] D98299: [InstSimplify] Simplify smul.fix and smul.fix.sat

[Bjorn Pettersson via Phabricator via llvm-commits]

bjope created this revision.
bjope added reviewers: nikic, spatel.
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Add simplification of smul.fix and smul.fix.sat according to

  X * 0 -> 0
  X * undef -> 0
  X * (1 << scale) -> X

This includes the commuted patterns and splatted vectors.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98299

Files:
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/test/Transforms/InstSimplify/smul_fix.ll

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