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| author | Zhengxing li <zhengxingli@microsoft.com> | 2024-12-10 13:18:49 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-12-10 13:18:49 -0800 |
| commit | 951a284fdff43f9b3aa2d2dbb2d01bbce3ab0673 (patch) | |
| tree | 59dbea567d2a52306f75c78c6e3baa9d84cb5d13 /clang/lib/CodeGen/CGHLSLRuntime.cpp | |
| parent | 968e3b682362e46042a718036ea7a641909b6375 (diff) | |
| download | llvm-951a284fdff43f9b3aa2d2dbb2d01bbce3ab0673.zip llvm-951a284fdff43f9b3aa2d2dbb2d01bbce3ab0673.tar.gz llvm-951a284fdff43f9b3aa2d2dbb2d01bbce3ab0673.tar.bz2 | |
[HLSL] Implement SV_GroupThreadId semantic (#117781)
Support HLSL SV_GroupThreadId attribute.
For `directx` target, translate it into `dx.thread.id.in.group` in clang
codeGen and lower `dx.thread.id.in.group` to `dx.op.threadIdInGroup` in
LLVM DirectX backend.
For `spir-v` target, translate it into `spv.thread.id.in.group` in clang
codeGen and lower `spv.thread.id.in.group` to a `LocalInvocationId`
builtin variable in LLVM SPIR-V backend.
Fixes: #70122
Diffstat (limited to 'clang/lib/CodeGen/CGHLSLRuntime.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGHLSLRuntime.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGHLSLRuntime.cpp b/clang/lib/CodeGen/CGHLSLRuntime.cpp index 2c29352..fb15b19 100644 --- a/clang/lib/CodeGen/CGHLSLRuntime.cpp +++ b/clang/lib/CodeGen/CGHLSLRuntime.cpp @@ -389,6 +389,11 @@ llvm::Value *CGHLSLRuntime::emitInputSemantic(IRBuilder<> &B, CGM.getIntrinsic(getThreadIdIntrinsic()); return buildVectorInput(B, ThreadIDIntrinsic, Ty); } + if (D.hasAttr<HLSLSV_GroupThreadIDAttr>()) { + llvm::Function *GroupThreadIDIntrinsic = + CGM.getIntrinsic(getGroupThreadIdIntrinsic()); + return buildVectorInput(B, GroupThreadIDIntrinsic, Ty); + } if (D.hasAttr<HLSLSV_GroupIDAttr>()) { llvm::Function *GroupIDIntrinsic = CGM.getIntrinsic(Intrinsic::dx_group_id); return buildVectorInput(B, GroupIDIntrinsic, Ty); |