diff --git a/clang/test/CodeGenOpenCL/pipe_builtin.cl b/clang/test/CodeGenOpenCL/pipe_builtin.cl
--- a/clang/test/CodeGenOpenCL/pipe_builtin.cl
+++ b/clang/test/CodeGenOpenCL/pipe_builtin.cl
@@ -71,16 +71,3 @@
   // CHECK: call i32 @__get_pipe_max_packets_wo(%opencl.pipe_wo_t* %{{.*}}, i32 4, i32 4)
   *ptr = get_pipe_max_packets(p);
 }
-
-struct Person {
-  const char *Name;
-  bool isFemale;
-  int ID;
-};
-
-void test9(global struct Person *SDst, read_only pipe struct Person SPipe) {
-  // CHECK: call i32 @__read_pipe_2(%opencl.pipe_ro_t* %{{.*}}, i8* %{{.*}}, i32 16, i32 8)
-  read_pipe (SPipe, SDst);
-  // CHECK: call i32 @__read_pipe_2(%opencl.pipe_ro_t* %{{.*}}, i8* %{{.*}}, i32 16, i32 8)
-  read_pipe (SPipe, SDst);
-}
diff --git a/clang/test/CodeGenOpenCL/pipe_types.cl b/clang/test/CodeGenOpenCL/pipe_types.cl
--- a/clang/test/CodeGenOpenCL/pipe_types.cl
+++ b/clang/test/CodeGenOpenCL/pipe_types.cl
@@ -1,6 +1,6 @@
-// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O0 -cl-std=CL2.0 -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O0 -cl-std=CL3.0 -cl-ext=+__opencl_c_pipes,+__opencl_c_generic_address_space,+__opencl_c_program_scope_global_variables -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O0 -cl-std=CL3.0 -cl-ext=+__opencl_c_pipes,+__opencl_c_generic_address_space,-__opencl_c_program_scope_global_variables -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O0 -cl-std=CL2.0 -DTEST_STRUCT -o - %s | FileCheck --check-prefixes=CHECK,CHECK-STRUCT %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O0 -cl-std=CL3.0 -cl-ext=+__opencl_c_pipes,+__opencl_c_generic_address_space,+__opencl_c_program_scope_global_variables -o - %s | FileCheck --check-prefixes=CHECK %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -O0 -cl-std=CL3.0 -cl-ext=+__opencl_c_pipes,+__opencl_c_generic_address_space,-__opencl_c_program_scope_global_variables -o - %s | FileCheck --check-prefixes=CHECK %s
 
 // CHECK: %opencl.pipe_ro_t = type opaque
 // CHECK: %opencl.pipe_wo_t = type opaque
@@ -33,3 +33,21 @@
 kernel void test6(MyPipe p) {
 // CHECK: define{{.*}} spir_kernel void @test6(%opencl.pipe_ro_t* %p)
 }
+
+#ifdef TEST_STRUCT
+// FIXME: not supported for OpenCL C 3.0 as language built-ins not supported yet
+struct Person {
+  const char *Name;
+  bool isFemale;
+  int ID;
+};
+
+void test_reserved_read_pipe(global struct Person *SDst,
+                             read_only pipe struct Person SPipe) {
+  // CHECK-STRUCT: define{{.*}} void @test_reserved_read_pipe
+  read_pipe (SPipe, SDst);
+  // CHECK-STRUCT: call i32 @__read_pipe_2(%opencl.pipe_ro_t* %{{.*}}, i8* %{{.*}}, i32 16, i32 8)
+  read_pipe (SPipe, SDst);
+  // CHECK-STRUCT: call i32 @__read_pipe_2(%opencl.pipe_ro_t* %{{.*}}, i8* %{{.*}}, i32 16, i32 8)
+}
+#endif // TEST_STRUCT