================
@@ -342,8 +343,19 @@ llvm::Value *CGHLSLRuntime::emitInputSemantic(IRBuilder<>
&B,
return B.CreateCall(FunctionCallee(DxGroupIndex));
}
if (D.hasAttr<HLSLSV_DispatchThreadIDAttr>()) {
- llvm::Function *DxThreadID = CGM.getIntrinsic(Intrinsic::dx_thread_id);
- return buildVectorInput(B, DxThreadID, Ty);
+ llvm::Function *ThreadIDIntrinsic;
+ switch (CGM.getTarget().getTriple().getArch()) {
+ case llvm::Triple::dxil:
+ ThreadIDIntrinsic = CGM.getIntrinsic(Intrinsic::dx_thread_id);
+ break;
+ case llvm::Triple::spirv:
+ ThreadIDIntrinsic = CGM.getIntrinsic(Intrinsic::spv_thread_id);
+ break;
+ default:
+ llvm_unreachable("Input semantic not supported by target");
+ break;
+ }
+ return buildVectorInput(B, ThreadIDIntrinsic, Ty);
----------------
bogner wrote:
Sure, that's one implementation approach. I was thinking of keeping it as
simple as a bag of functions, along these lines:
```
struct HLSLTargetIntrinsic {
IntrinsicID getThreadID(llvm::Triple::ArchType Arch) {
switch (Arch) {
case llvm::Triple::dxil:
return Intrinsic::dx_thread_id;
case llvm::Triple::spirv:
return Intrinsic::spa_thread_id;
}
}
}
```
(whether the Arch is passed in as a function arg, a member of the type, or a
template arg is an implementation detail...)
https://github.com/llvm/llvm-project/pull/82536
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