diff options
Diffstat (limited to 'clang/lib/CodeGen/Targets/AMDGPU.cpp')
| -rw-r--r-- | clang/lib/CodeGen/Targets/AMDGPU.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/Targets/AMDGPU.cpp b/clang/lib/CodeGen/Targets/AMDGPU.cpp index 03ac6b78598f..44e86c0b40f6 100644 --- a/clang/lib/CodeGen/Targets/AMDGPU.cpp +++ b/clang/lib/CodeGen/Targets/AMDGPU.cpp @@ -356,6 +356,29 @@ void AMDGPUTargetCodeGenInfo::setFunctionDeclAttributes( if (NumVGPR != 0) F->addFnAttr("amdgpu-num-vgpr", llvm::utostr(NumVGPR)); } + + if (const auto *Attr = FD->getAttr<AMDGPUMaxNumWorkGroupsAttr>()) { + uint32_t X = Attr->getMaxNumWorkGroupsX() + ->EvaluateKnownConstInt(M.getContext()) + .getExtValue(); + // Y and Z dimensions default to 1 if not specified + uint32_t Y = Attr->getMaxNumWorkGroupsY() + ? Attr->getMaxNumWorkGroupsY() + ->EvaluateKnownConstInt(M.getContext()) + .getExtValue() + : 1; + uint32_t Z = Attr->getMaxNumWorkGroupsZ() + ? Attr->getMaxNumWorkGroupsZ() + ->EvaluateKnownConstInt(M.getContext()) + .getExtValue() + : 1; + + llvm::SmallString<32> AttrVal; + llvm::raw_svector_ostream OS(AttrVal); + OS << X << ',' << Y << ',' << Z; + + F->addFnAttr("amdgpu-max-num-workgroups", AttrVal.str()); + } } /// Emits control constants used to change per-architecture behaviour in the |