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

llvm-svn: 188447
diff --git a/clang/test/CodeGen/mips64-padding-arg.c b/clang/test/CodeGen/mips64-padding-arg.c
index 85dc00c..b2403b2 100644
--- a/clang/test/CodeGen/mips64-padding-arg.c
+++ b/clang/test/CodeGen/mips64-padding-arg.c
@@ -8,7 +8,7 @@
 
 // Insert padding to ensure arguments of type S0 are aligned to 16-byte boundaries.
 
-// N64: define void @foo1(i32 %a0, i64, double %a1.coerce0, i64 %a1.coerce1, i64 %a1.coerce2, i64 %a1.coerce3, double %a2.coerce0, i64 %a2.coerce1, i64 %a2.coerce2, i64 %a2.coerce3, i32 %b, i64, double %a3.coerce0, i64 %a3.coerce1, i64 %a3.coerce2, i64 %a3.coerce3)
+// N64-LABEL: define void @foo1(i32 %a0, i64, double %a1.coerce0, i64 %a1.coerce1, i64 %a1.coerce2, i64 %a1.coerce3, double %a2.coerce0, i64 %a2.coerce1, i64 %a2.coerce2, i64 %a2.coerce3, i32 %b, i64, double %a3.coerce0, i64 %a3.coerce1, i64 %a3.coerce2, i64 %a3.coerce3)
 // N64: tail call void @foo2(i32 1, i32 2, i32 %a0, i64 undef, double %a1.coerce0, i64 %a1.coerce1, i64 %a1.coerce2, i64 %a1.coerce3, double %a2.coerce0, i64 %a2.coerce1, i64 %a2.coerce2, i64 %a2.coerce3, i32 3, i64 undef, double %a3.coerce0, i64 %a3.coerce1, i64 %a3.coerce2, i64 %a3.coerce3)
 // N64: declare void @foo2(i32, i32, i32, i64, double, i64, i64, i64, double, i64, i64, i64, i32, i64, double, i64, i64, i64)
 
@@ -20,7 +20,7 @@
 
 // Insert padding before long double argument.
 //
-// N64: define void @foo3(i32 %a0, i64, fp128 %a1)
+// N64-LABEL: define void @foo3(i32 %a0, i64, fp128 %a1)
 // N64: tail call void @foo4(i32 1, i32 2, i32 %a0, i64 undef, fp128 %a1)
 // N64: declare void @foo4(i32, i32, i32, i64, fp128)
 
@@ -32,7 +32,7 @@
 
 // Insert padding after hidden argument.
 //
-// N64: define void @foo5(%struct.S0* noalias sret %agg.result, i64, fp128 %a0)
+// N64-LABEL: define void @foo5(%struct.S0* noalias sret %agg.result, i64, fp128 %a0)
 // N64: call void @foo6(%struct.S0* sret %agg.result, i32 1, i32 2, i64 undef, fp128 %a0)
 // N64: declare void @foo6(%struct.S0* sret, i32, i32, i64, fp128)
 
@@ -44,7 +44,7 @@
 
 // Do not insert padding if ABI is O32.
 //
-// O32: define void @foo7(float %a0, double %a1)
+// O32-LABEL: define void @foo7(float %a0, double %a1)
 // O32: declare void @foo8(float, double)
 
 extern void foo8(float, double);