[all-commits] [llvm/llvm-project] b58ae6: [InstCombine] Sync KnownBits logic for select arms

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b58ae6bd2708a5c3757fe7ec722b6a87b98fd81a
      https://github.com/llvm/llvm-project/commit/b58ae6bd2708a5c3757fe7ec722b6a87b98fd81a
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-07-01 (Mon, 01 Jul 2024)

  Changed paths:
    M llvm/include/llvm/Analysis/ValueTracking.h
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp

  Log Message:
  -----------
  [InstCombine] Sync KnownBits logic for select arms

Extract an adjustKnownBitsForSelectArm() helper for the
ValueTracking logic and make use of it in SimplifyDemandedBits().

This fixes a consistency violation under instcombine-verify-known-bits.



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