add OpenCL test

Author: jhuber6

clang/test/CodeGen/scoped-atomic-ops.c

@@ -1,6 +1,8 @@
 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
 // RUN: %clang_cc1 %s -emit-llvm -o - -triple=amdgcn-amd-amdhsa -ffreestanding \
 // RUN:   -fvisibility=hidden | FileCheck --check-prefix=AMDGCN %s
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple=amdgcn-amd-amdhsa -ffreestanding \
+// RUN:   -cl-std=CL2.0 -fvisibility=hidden | FileCheck --check-prefix=AMDGCN %s
 // RUN: %clang_cc1 %s -emit-llvm -o - -triple=spirv64-unknown-unknown -ffreestanding \
 // RUN:   -fvisibility=hidden | FileCheck --check-prefix=SPIRV %s
 

clang/test/CodeGen/scoped-fence-ops.c

@@ -1,6 +1,8 @@
 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
 // RUN: %clang_cc1 %s -emit-llvm -o - -triple=amdgcn-amd-amdhsa -ffreestanding \
 // RUN:   -fvisibility=hidden | FileCheck --check-prefix=AMDGCN %s
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple=amdgcn-amd-amdhsa -ffreestanding \
+// RUN:   -cl-std=CL2.0 -fvisibility=hidden | FileCheck --check-prefix=AMDGCN %s
 // RUN: %clang_cc1 %s -emit-llvm -o - -triple=spirv64-unknown-unknown -ffreestanding \
 // RUN:   -fvisibility=hidden | FileCheck --check-prefix=SPIRV %s
 // RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-unknown-linux-gnu -ffreestanding \