[all-commits] [llvm/llvm-project] 63febe: [GISel][CallLowering] Improve arg flags setting co...

[Cullen Rhodes via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 63febe07c8878a0695cdbc5551df8cd854828cf3
      https://github.com/llvm/llvm-project/commit/63febe07c8878a0695cdbc5551df8cd854828cf3
  Author: Cullen Rhodes <cullen.rhodes at arm.com>
  Date:   2026-04-15 (Wed, 15 Apr 2026)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/CallLowering.cpp

  Log Message:
  -----------
  [GISel][CallLowering] Improve arg flags setting compile-time (#191761)

addFlagsUsingAttrFn is hot and showing up in compile-time profiles via
llvm::CallLowering::lowerCall. The culprit is std::function callback.
Switching to set flags based on AttributeSet directly is a -0.25%
compile-time improvement on CTMark AArch64 O0.

https://llvm-compile-time-tracker.com/compare.php?from=d35cd21a3757ab6028024f0b47bc9d802d06eae6&to=e717c7017faf2cb386f0d02715fb55d252b3ae42&stat=instructions%3Au



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