[all-commits] [llvm/llvm-project] 6ad1dd: [InstCombine] Fold (sext(a) & c1) == c2 to (a & c3...

[Lee Wei via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6ad1dd3bdcc8f9bfdf9f6074c8dffe0675a2e4cf
      https://github.com/llvm/llvm-project/commit/6ad1dd3bdcc8f9bfdf9f6074c8dffe0675a2e4cf
  Author: Lee Wei <lee10202013 at gmail.com>
  Date:   2024-11-11 (Mon, 11 Nov 2024)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
    M llvm/test/Transforms/InstCombine/load-cmp.ll
    A llvm/test/Transforms/InstCombine/sext-and.ll

  Log Message:
  -----------
  [InstCombine] Fold (sext(a) & c1) == c2 to (a & c3) == trunc(c2) (#112646)

Fixes https://github.com/llvm/llvm-project/issues/85830.

Updated Alive proof: https://alive2.llvm.org/ce/z/KnvoP5



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