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

llvm-svn: 188447
diff --git a/clang/test/CodeGen/assign.c b/clang/test/CodeGen/assign.c
index fc00896..b2702f0 100644
--- a/clang/test/CodeGen/assign.c
+++ b/clang/test/CodeGen/assign.c
@@ -2,7 +2,7 @@
 
 // Check that we don't generate unnecessary reloads.
 //
-// CHECK: define void @f0()
+// CHECK-LABEL: define void @f0()
 // CHECK:      [[x_0:%.*]] = alloca i32, align 4
 // CHECK-NEXT: [[y_0:%.*]] = alloca i32, align 4
 // CHECK-NEXT: store i32 1, i32* [[x_0]]
@@ -18,7 +18,7 @@
 // This used to test that we generate reloads for volatile access,
 // but that does not appear to be correct behavior for C.
 //
-// CHECK: define void @f1()
+// CHECK-LABEL: define void @f1()
 // CHECK:      [[x_1:%.*]] = alloca i32, align 4
 // CHECK-NEXT: [[y_1:%.*]] = alloca i32, align 4
 // CHECK-NEXT: store volatile i32 1, i32* [[x_1]]