[all-commits] [llvm/llvm-project] b6b703: AMDGPU: Infer no-agpr usage in AMDGPUAttributor (#...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b6b703b2dfc1d1ba45ebc64ed6b53a3a46f531f5
      https://github.com/llvm/llvm-project/commit/b6b703b2dfc1d1ba45ebc64ed6b53a3a46f531f5
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2024-03-21 (Thu, 21 Mar 2024)

  Changed paths:
    M llvm/docs/AMDGPUUsage.rst
    M llvm/lib/Target/AMDGPU/AMDGPUAttributor.cpp
    M llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
    M llvm/test/CodeGen/AMDGPU/addrspacecast-constantexpr.ll
    A 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
    M llvm/test/CodeGen/AMDGPU/copy-vgpr-clobber-spill-vgpr.mir
    M llvm/test/CodeGen/AMDGPU/direct-indirect-call.ll
    M llvm/test/CodeGen/AMDGPU/duplicate-attribute-indirect.ll
    M llvm/test/CodeGen/AMDGPU/implicitarg-offset-attributes.ll
    M llvm/test/CodeGen/AMDGPU/preload-kernargs-inreg-hints.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.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
    M llvm/test/CodeGen/AMDGPU/vgpr-agpr-limit-gfx90a.ll

  Log Message:
  -----------
  AMDGPU: Infer no-agpr usage in AMDGPUAttributor (#85948)

SIMachineFunctionInfo has a scan  of the function body for inline asm
which may use AGPRs, or callees in SIMachineFunctionInfo. Move this
into the attributor, so it actually works interprocedurally.
    
Could probably avoid most of the test churn if this bothered to avoid
adding this on subtargets without AGPRs. We should also probably
try to delete the MIR scan in usesAGPRs but it seems to be trickier
to eliminate.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications