[all-commits] [llvm/llvm-project] 89a2a4: [InstCombine] Add m_SpecificIntAllowUndef pattern ...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 89a2a478708fb8821fb88ef3053e8d6bb5b59e08
      https://github.com/llvm/llvm-project/commit/89a2a478708fb8821fb88ef3053e8d6bb5b59e08
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-10-14 (Wed, 14 Oct 2020)

  Changed paths:
    M llvm/include/llvm/IR/PatternMatch.h
    M llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp

  Log Message:
  -----------
  [InstCombine] Add m_SpecificIntAllowUndef pattern matcher

m_SpecificInt doesn't accept undef elements in a vector splat value - tweak specific_intval to optionally allow undefs and add the m_SpecificIntAllowUndef variants.

Allows us to remove the m_APIntAllowUndef + comparison hack inside matchFunnelShift