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

llvm-svn: 188447
diff --git a/clang/test/CodeGen/le32-arguments.c b/clang/test/CodeGen/le32-arguments.c
index 2cbbc0f..d26640e 100644
--- a/clang/test/CodeGen/le32-arguments.c
+++ b/clang/test/CodeGen/le32-arguments.c
@@ -2,7 +2,7 @@
 
 // Basic argument/attribute tests for le32/PNaCl
 
-// CHECK: define void @f0(i32 %i, i32 %j, double %k)
+// CHECK-LABEL: define void @f0(i32 %i, i32 %j, double %k)
 void f0(int i, long j, double k) {}
 
 typedef struct {
@@ -10,27 +10,27 @@
   int bb;
 } s1;
 // Structs should be passed byval and not split up
-// CHECK: define void @f1(%struct.s1* byval %i)
+// CHECK-LABEL: define void @f1(%struct.s1* byval %i)
 void f1(s1 i) {}
 
 typedef struct {
   int cc;
 } s2;
 // Structs should be returned sret and not simplified by the frontend
-// CHECK: define void @f2(%struct.s2* noalias sret %agg.result)
+// CHECK-LABEL: define void @f2(%struct.s2* noalias sret %agg.result)
 s2 f2() {
   s2 foo;
   return foo;
 }
 
-// CHECK: define void @f3(i64 %i)
+// CHECK-LABEL: define void @f3(i64 %i)
 void f3(long long i) {}
 
 // i8/i16 should be signext, i32 and higher should not
-// CHECK: define void @f4(i8 signext %a, i16 signext %b)
+// CHECK-LABEL: define void @f4(i8 signext %a, i16 signext %b)
 void f4(char a, short b) {}
 
-// CHECK: define void @f5(i8 zeroext %a, i16 zeroext %b)
+// CHECK-LABEL: define void @f5(i8 zeroext %a, i16 zeroext %b)
 void f5(unsigned char a, unsigned short b) {}
 
 
@@ -40,7 +40,7 @@
   ENUM3,
 };
 // Enums should be treated as the underlying i32
-// CHECK: define void @f6(i32 %a)
+// CHECK-LABEL: define void @f6(i32 %a)
 void f6(enum my_enum a) {}
 
 union simple_union {
@@ -48,7 +48,7 @@
   char b;
 };
 // Unions should be passed as byval structs
-// CHECK: define void @f7(%union.simple_union* byval %s)
+// CHECK-LABEL: define void @f7(%union.simple_union* byval %s)
 void f7(union simple_union s) {}
 
 typedef struct {
@@ -57,5 +57,5 @@
   int b8 : 8;
 } bitfield1;
 // Bitfields should be passed as byval structs
-// CHECK: define void @f8(%struct.bitfield1* byval %bf1)
+// CHECK-LABEL: define void @f8(%struct.bitfield1* byval %bf1)
 void f8(bitfield1 bf1) {}