[all-commits] [llvm/llvm-project] a71909: [InstCombine] Set flags when canonicalizing GEP in...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a71909156e5eaa1932813d4e806fa2b4b0037145
      https://github.com/llvm/llvm-project/commit/a71909156e5eaa1932813d4e806fa2b4b0037145
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2025-07-31 (Thu, 31 Jul 2025)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
    M llvm/test/Transforms/InstCombine/getelementptr.ll
    M llvm/test/Transforms/InstCombine/icmp-custom-dl.ll
    M llvm/test/Transforms/InstCombine/icmp-gep.ll
    M llvm/test/Transforms/InstCombine/indexed-gep-compares.ll
    M llvm/test/Transforms/InstCombine/load-cmp.ll
    M llvm/test/Transforms/InstCombine/pr39908.ll
    M llvm/test/Transforms/InstCombine/sub-gep.ll

  Log Message:
  -----------
  [InstCombine] Set flags when canonicalizing GEP indices (#151516)

When truncating set nsw/nuw based on nusw/nuw. When extending, use zext
nneg if nusw+nuw.

Proof: https://alive2.llvm.org/ce/z/JA2Yzr



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