[SYCL] Add test for kernel annotations

Author: jchlanda

clang/test/CodeGenSYCL/kernel-annotation.cpp

@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -triple spir64-unknown-unknown -fsycl-is-device \
+// RUN: -S -emit-llvm %s -o %temp.ll
+// RUN: FileCheck -check-prefix=CHECK-SPIR --input-file %temp.ll %s
+
+// RUN: %clang_cc1 -triple nvptx64-unknown-unknown -fsycl-is-device \
+// RUN: -S -emit-llvm %s -o %temp.ll
+// RUN: FileCheck -check-prefix=CHECK-NVPTX --input-file %temp.ll %s
+
+// RUN: %clang_cc1 -triple amdgcn-unknown-unknown -fsycl-is-device \
+// RUN: -S -emit-llvm %s -o %temp.ll
+// RUN: FileCheck -check-prefix=CHECK-AMDGCN --input-file %temp.ll %s
+
+// The test makes sure that `[nnvm|amdgcn].annotations are correctly generated
+// only for their respective targets.
+
+#include "Inputs/sycl.hpp"
+
+sycl::handler H;
+
+class Functor {
+public:
+  void operator()() const {}
+};
+
+// CHECK-SPIR-NOT: annotations =
+
+// CHECK-NVPTX: nvvm.annotations = !{[[FIRST:![0-9]]], [[SECOND:![0-9]]]}
+// CHECK-NVPTX: [[FIRST]] = !{void ()* @_ZTS7Functor, !"kernel", i32 1}
+// CHECK-NVPTX: [[SECOND]] = !{void ()* @_ZTSZZ4mainENKUlRN2cl4sycl7handlerEE0_clES2_E5foo_2, !"kernel", i32 1}
+
+// CHECK-AMDGCN: amdgcn.annotations = !{[[FIRST:![0-9]]], [[SECOND:![0-9]]]}
+// CHECK-AMDGCN: [[FIRST]] = !{void ()* @_ZTS7Functor, !"kernel", i32 1}
+// CHECK-AMDGCN: [[SECOND]] = !{void ()* @_ZTSZZ4mainENKUlRN2cl4sycl7handlerEE0_clES2_E5foo_2, !"kernel", i32 1}
+
+int main() {
+  sycl::queue q;
+  q.submit([&](sycl::handler &cgh) {
+    Functor foo{};
+    cgh.single_task(foo);
+  });
+
+  q.submit([&](cl::sycl::handler &cgh) {
+    cgh.parallel_for<class foo_2>(cl::sycl::range<1>(1),
+                                  [=](cl::sycl::item<1> item) {
+                                  });
+  });
+  return 0;
+}