CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail.

llvm-svn: 188447
diff --git a/clang/test/CodeGenCXX/pointers-to-data-members.cpp b/clang/test/CodeGenCXX/pointers-to-data-members.cpp
index 7335c97..f0199c8 100644
--- a/clang/test/CodeGenCXX/pointers-to-data-members.cpp
+++ b/clang/test/CodeGenCXX/pointers-to-data-members.cpp
@@ -124,7 +124,7 @@
   A();
 };
 
-// CHECK: define void @_ZN9ValueInit1AC2Ev(%"struct.ValueInit::A"* %this) unnamed_addr
+// CHECK-LABEL: define void @_ZN9ValueInit1AC2Ev(%"struct.ValueInit::A"* %this) unnamed_addr
 // CHECK: store i64 -1, i64*
 // CHECK: ret void
 A::A() : a() {}
@@ -202,7 +202,7 @@
     bool member;
   };
 
-  // CHECK: define i8* @_ZN15BoolPtrToMember1fERNS_1XEMS0_b
+  // CHECK-LABEL: define i8* @_ZN15BoolPtrToMember1fERNS_1XEMS0_b
   bool &f(X &x, bool X::*member) {
     // CHECK: {{bitcast.* to i8\*}}
     // CHECK-NEXT: getelementptr inbounds i8*
@@ -249,7 +249,7 @@
   };
   A f();
   X g() { return f().*&A::x; }
-  // CHECK: define void @_ZN7PR130971gEv
+  // CHECK-LABEL: define void @_ZN7PR130971gEv
   // CHECK: call void @_ZN7PR130971fEv
   // CHECK-NOT: memcpy
   // CHECK: call void @_ZN7PR130971XC1ERKS0_