[all-commits] [llvm/llvm-project] 4502ea: [InstCombine] More precise nuw preservation in ptr...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4502ea89b9a067f8d76b89acdfef83d7cab59adb
      https://github.com/llvm/llvm-project/commit/4502ea89b9a067f8d76b89acdfef83d7cab59adb
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-07-11 (Thu, 11 Jul 2024)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp
    M llvm/test/Transforms/InstCombine/cast_ptr.ll

  Log Message:
  -----------
  [InstCombine] More precise nuw preservation in ptrtoint of gep fold

We can transfer a nuw flag from the gep to the add. Additionally,
the inbounds + nneg case can be relaxed to nusw + nneg. Finally,
don't forget to pass the correct context instruction to
SimplifyQuery.



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