================
@@ -2851,7 +2851,21 @@ bool SPIRVInstructionSelector::selectIntrinsic(Register
ResVReg,
.constrainAllUses(TII, TRI, RBI);
break;
case Intrinsic::spv_thread_id:
- return selectSpvThreadId(ResVReg, ResType, I);
+ // The HLSL SV_DispatchThreadID semantic is lowered to llvm.spv.thread.id
+ // intrinsic in LLVM IR for SPIR-V backend.
+ //
+ // In SPIR-V backend, llvm.spv.thread.id is now correctly translated to a
+ // `GlobalInvocationId` builtin variable
----------------
lizhengxing wrote:
@tex3d Those comments are based on the original comments in `selectSpvThreadId`
function with minimal changes. They were added by @sudonatalie.
If there's no objections from other reviewers, I think it's fine to keep those
comments here.
https://github.com/llvm/llvm-project/pull/117781
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