add OGCG label

Author: HendrikHuebner

clang/test/CIR/CodeGen/X86/sse-builtins.c

@@ -30,6 +30,7 @@ void test_mm_sfence(void) {
 void test_mm_prefetch(char const* p) {
   // CIR-LABEL: test_mm_prefetch
   // LLVM-LABEL: test_mm_prefetch
+  // OGCG-LABEL: test_mm_prefetch
   _mm_prefetch(p, 0);
   // CIR: cir.prefetch read locality(0) %{{.*}} : !cir.ptr<!void>
   // LLVM: call void @llvm.prefetch.p0(ptr {{.*}}, i32 0, i32 0, i32 1)
@@ -39,6 +40,7 @@ void test_mm_prefetch(char const* p) {
 void test_mm_prefetch_local(char const* p) {
   // CIR-LABEL: test_mm_prefetch_local
   // LLVM-LABEL: test_mm_prefetch_local
+  // OGCG-LABEL: test_mm_prefetch_local
   _mm_prefetch(p, 3);
   // CIR: cir.prefetch read locality(3) %{{.*}} : !cir.ptr<!void>
   // LLVM: call void @llvm.prefetch.p0(ptr {{.*}}, i32 0, i32 3, i32 1)
@@ -48,6 +50,7 @@ void test_mm_prefetch_local(char const* p) {
 void test_mm_prefetch_write(char const* p) {
   // CIR-LABEL: test_mm_prefetch_write
   // LLVM-LABEL: test_mm_prefetch_write
+  // OGCG-LABEL: test_mm_prefetch_write
   _mm_prefetch(p, 7);
   // CIR: cir.prefetch write locality(3) %{{.*}} : !cir.ptr<!void>
   // LLVM: call void @llvm.prefetch.p0(ptr {{.*}}, i32 1, i32 3, i32 1)