[all-commits] [llvm/llvm-project] 6180b4: [Transforms] Maintain uniformity profile hints acr...

[Yaxun (Sam) Liu via All-commits]

  Branch: refs/heads/users/yxsamliu/pgo-uniformity-cfg-preservation
  Home:   https://github.com/llvm/llvm-project
  Commit: 6180b492300aa3355cdf4279b0065da43e74eb60
      https://github.com/llvm/llvm-project/commit/6180b492300aa3355cdf4279b0065da43e74eb60
  Author: Yaxun (Sam) Liu <yaxun.liu at amd.com>
  Date:   2026-09-21 (Mon, 21 Sep 2026)

  Changed paths:
    M llvm/lib/Transforms/Scalar/JumpThreading.cpp
    M llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
    M llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
    M llvm/lib/Transforms/Utils/Local.cpp
    M llvm/lib/Transforms/Utils/SimplifyCFG.cpp
    A llvm/test/Transforms/InstCombine/cfg-uniformity-profile.ll
    A llvm/test/Transforms/JumpThreading/cfg-uniformity-profile.ll
    A llvm/test/Transforms/SimplifyCFG/cfg-uniformity-bypass.ll
    A llvm/test/Transforms/SimplifyCFG/cfg-uniformity-profile.ll
    A llvm/test/Transforms/StructurizeCFG/uniformity-profile.ll

  Log Message:
  -----------
  [Transforms] Maintain uniformity profile hints across CFG changes

Preserve uniformity hints only for equivalent decisions and execution
populations. Drop stale hints when CFG rewrites change their meaning.



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