[all-commits] [llvm/llvm-project] 61c067: [KnownBits] Add API for `nuw` flag in `computeForA...

[goldsteinn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 61c06775c96a93bf2b6ac0145b78b4ecb1a858b6
      https://github.com/llvm/llvm-project/commit/61c06775c96a93bf2b6ac0145b78b4ecb1a858b6
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2024-03-05 (Tue, 05 Mar 2024)

  Changed paths:
    M llvm/include/llvm/Support/KnownBits.h
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/lib/CodeGen/GlobalISel/GISelKnownBits.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/lib/Support/KnownBits.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
    M llvm/lib/Target/ARM/ARMISelLowering.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
    M llvm/unittests/Support/KnownBitsTest.cpp

  Log Message:
  -----------
  [KnownBits] Add API for `nuw` flag in `computeForAddSub`; NFC


  Commit: 17162b61c2e6968482fab928f89bdca8b4ac06d9
      https://github.com/llvm/llvm-project/commit/17162b61c2e6968482fab928f89bdca8b4ac06d9
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2024-03-05 (Tue, 05 Mar 2024)

  Changed paths:
    M llvm/include/llvm/Support/KnownBits.h
    M llvm/lib/Support/KnownBits.cpp
    M llvm/test/CodeGen/AArch64/sve-cmp-folds.ll
    M llvm/test/CodeGen/AArch64/sve-extract-element.ll
    M llvm/test/CodeGen/AMDGPU/ds-sub-offset.ll
    M llvm/test/Transforms/InstCombine/fold-log2-ceil-idiom.ll
    M llvm/test/Transforms/InstCombine/icmp-sub.ll
    M llvm/test/Transforms/InstCombine/sub.ll
    M llvm/unittests/Support/KnownBitsTest.cpp

  Log Message:
  -----------
  [KnownBits] Make `nuw` and `nsw` support in `computeForAddSub` optimal

Just some improvements that should hopefully strengthen analysis.

Closes #83580


Compare: https://github.com/llvm/llvm-project/compare/3cef82d60796...17162b61c2e6

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