[all-commits] [llvm/llvm-project] deb851: clang/AMDGPU: Add __builtin_amdgcn_inverse_ballot_...

[Nicolai Hähnle via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: deb851c6d01bd34159561c1904e2ac36d4b2f33f
      https://github.com/llvm/llvm-project/commit/deb851c6d01bd34159561c1904e2ac36d4b2f33f
  Author: Nicolai Hähnle <nicolai.haehnle at amd.com>
  Date:   2025-08-27 (Wed, 27 Aug 2025)

  Changed paths:
    M clang/docs/LanguageExtensions.rst
    M clang/include/clang/Basic/BuiltinsAMDGPU.def
    M clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp
    M clang/test/CodeGenOpenCL/builtins-amdgcn-wave32.cl
    M clang/test/CodeGenOpenCL/builtins-amdgcn-wave64.cl

  Log Message:
  -----------
  clang/AMDGPU: Add __builtin_amdgcn_inverse_ballot_w{32,64} (#155724)

Add builtins that expose the underlying llvm.amdgcn.inverse.ballot
intrinsic that we've had for a while.

This allows more explicitly writing code that selects or branches in
terms of lane masks, which can lead to better code quality.



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