[all-commits] [llvm/llvm-project] 4a074f: [InstCombine] Extend Phi-Icmp use to include or (#...

[bipmis via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4a074f32a6914f2a8d7215d78758c24942dddc3d
      https://github.com/llvm/llvm-project/commit/4a074f32a6914f2a8d7215d78758c24942dddc3d
  Author: bipmis <102525366+bipmis at users.noreply.github.com>
  Date:   2023-10-24 (Tue, 24 Oct 2023)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombinePHI.cpp
    M llvm/test/Transforms/InstCombine/phi.ll

  Log Message:
  -----------
  [InstCombine] Extend Phi-Icmp use to include or (#67682)

In InstCombinePHI currently the only use of PHI as an Icmp is being
checked as a requirement to reduce a value if isKnownNonZero.
However this can be extended to include or(icmp) . This is always true
as OR only adds bits and we are checking against 0.