Add FileCheck to terminator.rs and tuple.rs

Author: sfzhu93

tests/mir-opt/dataflow-const-prop/terminator.rs

@@ -1,12 +1,14 @@
-// skip-filecheck
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // unit-test: DataflowConstProp
 
 fn foo(n: i32) {}
 
 // EMIT_MIR terminator.main.DataflowConstProp.diff
+
+// CHECK-LABEL: fn main
 fn main() {
     let a = 1;
     // Checks that we propagate into terminators.
+    // CHECK: {{_[0-9]+}} = foo(const 2_i32) -> [return: {{bb[0-9]+}}, unwind continue];
     foo(a + 1);
 }

tests/mir-opt/dataflow-const-prop/tuple.rs

@@ -1,13 +1,27 @@
-// skip-filecheck
 // unit-test: DataflowConstProp
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
 // EMIT_MIR tuple.main.DataflowConstProp.diff
+
+// CHECK-LABEL: fn main
 fn main() {
+    // CHECK: debug a => [[a:_[0-9]+]];
+    // CHECK: debug b => [[b:_[0-9]+]];
+    // CHECK: debug c => [[c:_[0-9]+]];
+    // CHECK: debug d => [[d:_[0-9]+]];
+
+    // CHECK: [[a]] = const (1_i32, 2_i32);
     let mut a = (1, 2);
+
+    // CHECK: [[b]] = const 6_i32;
     let b = a.0 + a.1 + 3;
+
+    // CHECK: [[a]] = const (2_i32, 3_i32);
     a = (2, 3);
+
+    // CHECK: [[c]] = const 11_i32;
     let c = a.0 + a.1 + b;
 
+    // CHECK: [[d]] = (const 6_i32, const (2_i32, 3_i32), const 11_i32);
     let d = (b, a, c);
 }