[all-commits] [llvm/llvm-project] 116811: AMDGPU: Start interpreting byref on kernel arguments

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 1168119c2f0eb46774e5358df957bf90084bf75a
      https://github.com/llvm/llvm-project/commit/1168119c2f0eb46774e5358df957bf90084bf75a
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-07-21 (Tue, 21 Jul 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUCallLowering.h
    M llvm/lib/Target/AMDGPU/AMDGPUHSAMetadataStreamer.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUHSAMetadataStreamer.h
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULowerKernelArguments.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-amdgpu_kernel.ll
    M llvm/test/CodeGen/AMDGPU/hsa-metadata-from-llvm-ir-full-v3.ll
    M llvm/test/CodeGen/AMDGPU/hsa-metadata-from-llvm-ir-full.ll
    M llvm/test/CodeGen/AMDGPU/kernel-args.ll
    M llvm/test/CodeGen/AMDGPU/kernel-argument-dag-lowering.ll
    M llvm/test/CodeGen/AMDGPU/lower-kernargs.ll

  Log Message:
  -----------
  AMDGPU: Start interpreting byref on kernel arguments

These are treated identically to value aggregates placed in the kernel
argument list. A %struct.foo or %struct.foo addrspace(4)*
byref(sizeof(%struct.foo)) align(alignof(%struct.foo)) argument should
produce the same offsets and argument metadata.

This handles all 3 kernel ABI implementations, and the two HSA
metadata emission paths.