[all-commits] [llvm/llvm-project] f33536: [InstCombine] Support gep nuw in icmp folds (#118472)

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f33536468b7f05c05c8cf8088427b0b5b665eb65
      https://github.com/llvm/llvm-project/commit/f33536468b7f05c05c8cf8088427b0b5b665eb65
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-12-03 (Tue, 03 Dec 2024)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
    M llvm/test/Transforms/InstCombine/icmp-gep.ll

  Log Message:
  -----------
  [InstCombine] Support gep nuw in icmp folds (#118472)

Unsigned icmp of gep nuw folds to unsigned icmp of offsets. Unsigned
icmp of gep nusw nuw folds to unsigned samesign icmp of offsets.

Proofs: https://alive2.llvm.org/ce/z/VEwQY8



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