[all-commits] [llvm/llvm-project] cdab5d: [AMDGPU] Add synthetic apertures and use them for ...

[Pierre van Houtryve via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cdab5d7b28a38112cf91784ea7d404d2d4c6a68e
      https://github.com/llvm/llvm-project/commit/cdab5d7b28a38112cf91784ea7d404d2d4c6a68e
  Author: Pierre van Houtryve <pierre.vanhoutryve at amd.com>
  Date:   2026-09-09 (Wed, 09 Sep 2026)

  Changed paths:
    M llvm/docs/AMDGPUUsage.rst
    M llvm/include/llvm/Support/AMDGPUAddrSpace.h
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.h
    M llvm/lib/Target/AMDGPU/AMDGPUMemoryUtils.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUMemoryUtils.h
    M llvm/lib/Target/AMDGPU/SIDefines.h
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.h
    M llvm/test/CodeGen/AMDGPU/addrspacecast-barrier.ll

  Log Message:
  -----------
  [AMDGPU] Add synthetic apertures and use them for barriers (#209748)

Define what a synthetic aperture is, and adjust the barrier AS
to use this new system. This makes the barrier AS even safer to
use as now we can use all 32 bits of it without ever risking
hitting a valid address of any kind (LDS or outside LDS).



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