1 files changed, 30 insertions, 0 deletions
diff --git a/clang/test/CodeGenHLSL/semantics/semantic-struct-nested.hlsl b/clang/test/CodeGenHLSL/semantics/semantic-struct-nested.hlsl
new file mode 100644
index 0000000..cd6f946
--- /dev/null
+++ b/clang/test/CodeGenHLSL/semantics/semantic-struct-nested.hlsl
@@ -0,0 +1,30 @@
+// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-DXIL -DTARGET=dx
+// RUN: %clang_cc1 -triple spirv-linux-vulkan-library -x hlsl -emit-llvm -finclude-default-header -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV -DTARGET=spv
+
+
+struct Inner {
+  uint Gid : SV_GroupID;
+};
+
+struct Input {
+  uint Idx : SV_DispatchThreadID;
+  Inner inner;
+};
+
+// Make sure SV_DispatchThreadID translated into dx.thread.id.
+
+// CHECK:       define void @foo()
+// CHECK-DXIL:  %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id(i32 0)
+// CHECK-SPIRV: %[[#ID:]] = call i32 @llvm.[[TARGET]].thread.id.i32(i32 0)
+// CHECK:     %[[#TMP1:]] = insertvalue %struct.Input poison, i32 %[[#ID]], 0
+// CHECK-DXIL: %[[#GID:]] = call i32 @llvm.[[TARGET]].group.id(i32 0)
+// CHECK-SPIRV:%[[#GID:]] = call i32 @llvm.[[TARGET]].group.id.i32(i32 0)
+// CHECK:     %[[#TMP2:]] = insertvalue %struct.Inner poison, i32 %[[#GID]], 0
+// CHECK:     %[[#TMP3:]] = insertvalue %struct.Input %[[#TMP1]], %struct.Inner %[[#TMP2]], 1
+// CHECK:      %[[#VAR:]] = alloca %struct.Input, align 8
+// CHECK:                   store %struct.Input %[[#TMP3]], ptr %[[#VAR]], align 4
+// CHECK-DXIL:              call void @{{.*}}foo{{.*}}(ptr %[[#VAR]])
+// CHECK-SPIRV:             call spir_func void @{{.*}}foo{{.*}}(ptr %[[#VAR]])
+[shader("compute")]
+[numthreads(8,8,1)]
+void foo(Input input) {}