[llvm] [AMDGPU] SelDAG: fix lowering of undefined workitem intrinsics (PR #126058)

[Shilei Tian via llvm-commits]

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@@ -0,0 +1,61 @@
+; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=amdgcn -mcpu=gfx942 -O0 -stop-after=si-fix-sgpr-copies -o - %s | FileCheck --check-prefix=SelDAG %s
+; RUN: llc -global-isel -mtriple=amdgcn -mcpu=gfx942 -stop-after=legalizer -o - %s | FileCheck --check-prefix=GlobalISel %s
+
+declare i32 @llvm.amdgcn.workitem.id.x()
+declare i32 @llvm.amdgcn.workitem.id.y()
+declare i32 @llvm.amdgcn.workitem.id.z()
+
+define amdgpu_ps void @undefined_workitems(ptr %p, ptr %q, ptr %r) {
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shiltian wrote:

I don't see this function is marked with `amdgpu-no-*` attribute. Is it implied by the CC?

https://github.com/llvm/llvm-project/pull/126058