[all-commits] [llvm/llvm-project] e6aec2: [AMDGPU] Infer amdgpu-no-flat-scratch-init attribu...

[Jun Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e6aec2c12095cc7debd1a8004c8535eef41f4c36
      https://github.com/llvm/llvm-project/commit/e6aec2c12095cc7debd1a8004c8535eef41f4c36
  Author: Jun Wang <jwang86 at yahoo.com>
  Date:   2024-12-04 (Wed, 04 Dec 2024)

  Changed paths:
    M clang/test/CodeGenCUDA/amdgpu-kernel-arg-pointer-type.cu
    M llvm/lib/Target/AMDGPU/AMDGPUAttributes.def
    M llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp
    M llvm/test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll
    M llvm/test/CodeGen/AMDGPU/amdgpu-attributor-no-agpr.ll
    M llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa-call.ll
    M llvm/test/CodeGen/AMDGPU/annotate-kernel-features-hsa.ll
    M llvm/test/CodeGen/AMDGPU/annotate-kernel-features.ll
    A llvm/test/CodeGen/AMDGPU/attributor-flatscratchinit-globalisel.ll
    A llvm/test/CodeGen/AMDGPU/attributor-flatscratchinit.ll
    M llvm/test/CodeGen/AMDGPU/direct-indirect-call.ll
    M llvm/test/CodeGen/AMDGPU/duplicate-attribute-indirect.ll
    M llvm/test/CodeGen/AMDGPU/flat-address-space.ll
    M llvm/test/CodeGen/AMDGPU/flat-scratch-reg.ll
    M llvm/test/CodeGen/AMDGPU/implicit-kernarg-backend-usage.ll
    M llvm/test/CodeGen/AMDGPU/implicitarg-offset-attributes.ll
    M llvm/test/CodeGen/AMDGPU/indirect-call-set-from-other-function.ll
    M llvm/test/CodeGen/AMDGPU/lower-module-lds-via-hybrid.ll
    M llvm/test/CodeGen/AMDGPU/partial-regcopy-and-spill-missed-at-regalloc.ll
    M llvm/test/CodeGen/AMDGPU/propagate-flat-work-group-size.ll
    M llvm/test/CodeGen/AMDGPU/propagate-waves-per-eu.ll
    M llvm/test/CodeGen/AMDGPU/recursive_global_initializer.ll
    M llvm/test/CodeGen/AMDGPU/remove-no-kernel-id-attribute.ll
    M llvm/test/CodeGen/AMDGPU/simple-indirect-call-2.ll
    M llvm/test/CodeGen/AMDGPU/simple-indirect-call.ll
    M llvm/test/CodeGen/AMDGPU/uniform-work-group-attribute-missing.ll
    M llvm/test/CodeGen/AMDGPU/uniform-work-group-multistep.ll
    M llvm/test/CodeGen/AMDGPU/uniform-work-group-nested-function-calls.ll
    M llvm/test/CodeGen/AMDGPU/uniform-work-group-prevent-attribute-propagation.ll
    M llvm/test/CodeGen/AMDGPU/uniform-work-group-propagate-attribute.ll
    M llvm/test/CodeGen/AMDGPU/uniform-work-group-recursion-test.ll
    M llvm/test/CodeGen/AMDGPU/uniform-work-group-test.ll

  Log Message:
  -----------
  [AMDGPU] Infer amdgpu-no-flat-scratch-init attribute in AMDGPUAttributor (#94647)

The AMDGPUAnnotateKernelFeatures pass infers the "amdgpu-calls" and
"amdgpu-stack-objects" attributes, which are used to infer whether we
need to initialize flat scratch. This is, however, not precise. Instead,
we should use AMDGPUAttributor and infer amdgpu-no-flat-scratch-init on
kernels. Refer to https://github.com/llvm/llvm-project/issues/63586 .



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