[all-commits] [llvm/llvm-project] b8d665: [CodeLayout] Do not flip branch condition when usi...

[Ellis Hoag via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b8d6659bff25458693c99a7c53372afcf6d66d7d
      https://github.com/llvm/llvm-project/commit/b8d6659bff25458693c99a7c53372afcf6d66d7d
  Author: Ellis Hoag <ellis.sparky.hoag at gmail.com>
  Date:   2024-11-12 (Tue, 12 Nov 2024)

  Changed paths:
    M llvm/lib/CodeGen/MachineBlockPlacement.cpp
    A llvm/test/CodeGen/AArch64/block-placement-optimize-branches.ll
    M llvm/test/CodeGen/X86/conditional-tailcall.ll

  Log Message:
  -----------
  [CodeLayout] Do not flip branch condition when using optsize (#114607)

* Do not use profile data when flipping a branch condition when
optimizing for size. This should improving outlining and ICF due to more
uniform instruction sequences.
* Refactor `optimizeBranches()` to use early `continue`s
* Use the correct debug location for `insertBranch()`



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