[all-commits] [llvm/llvm-project] 760071: [LLVM] New NoDivergenceSource function attribute (...

[Tim Renouf via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 76007138f4ffd4e0f510d12b5e8cad529c21f24d
      https://github.com/llvm/llvm-project/commit/76007138f4ffd4e0f510d12b5e8cad529c21f24d
  Author: Tim Renouf <tim.renouf at amd.com>
  Date:   2024-10-12 (Sat, 12 Oct 2024)

  Changed paths:
    M llvm/docs/LangRef.rst
    M llvm/include/llvm/Bitcode/LLVMBitCodes.h
    M llvm/include/llvm/IR/Attributes.td
    M llvm/lib/Analysis/TargetTransformInfo.cpp
    M llvm/lib/Bitcode/Reader/BitcodeReader.cpp
    M llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
    M llvm/lib/Transforms/Utils/CodeExtractor.cpp
    A llvm/test/Analysis/UniformityAnalysis/AMDGPU/nodivergencesource.ll
    M llvm/test/Bitcode/attributes.ll

  Log Message:
  -----------
  [LLVM] New NoDivergenceSource function attribute (#111832)

A call to a function that has this attribute is not a source of
divergence, as used by UniformityAnalysis. That allows a front-end to
use known-name calls as an instruction extension mechanism (e.g.
https://github.com/GPUOpen-Drivers/llvm-dialects ) without such a call
being a source of divergence.



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