Add FileCheck to 3 tests: ref_without_sb, repeat, repr_transparent

Author: sfzhu93

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

@@ -1,4 +1,3 @@
-// skip-filecheck
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // unit-test: DataflowConstProp
 
@@ -9,11 +8,21 @@ fn escape<T>(x: &T) {}
 fn some_function() {}
 
 // EMIT_MIR ref_without_sb.main.DataflowConstProp.diff
+// CHECK-LABEL: fn main
 fn main() {
+    // CHECK: debug a => [[a:_.*]];
+    // CHECK: debug b => [[b:_.*]];
+
     let mut a = 0;
+
+    // CHECK: {{_[0-9]+}} = escape::<i32>(move {{_[0-9]+}}) -> [return: {{bb[0-9]+}}, unwind continue];
     escape(&a);
     a = 1;
+
+    // CHECK: {{_[0-9]+}} = some_function() -> [return: {{bb[0-9]+}}, unwind continue];
     some_function();
     // This should currently not be propagated.
+
+    // CHECK: [[b]] = [[a]];
     let b = a;
 }

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

@@ -1,9 +1,17 @@
-// skip-filecheck
 // unit-test: DataflowConstProp
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
 // EMIT_MIR repeat.main.DataflowConstProp.diff
+// CHECK-LABEL: fn main
 fn main() {
+    // CHECK: debug x => [[x:_.*]];
+
+    // CHECK: {{_[0-9]+}} = const 8_usize;
+    // CHECK: {{_[0-9]+}} = const true;
+    // CHECK-LABEL: assert(const true
+
+    // CHECK: {{_[0-9]+}} = {{_[0-9]+}}[2 of 3];
+    // CHECK: [[x]] = Add(move {{_[0-9]+}}, const 0_u32);
     let x: u32 = [42; 8][2] + 0;
 }

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

@@ -1,4 +1,3 @@
-// skip-filecheck
 // unit-test: DataflowConstProp
 
 // The struct has scalar ABI, but is not a scalar type.
@@ -7,7 +6,15 @@
 struct I32(i32);
 
 // EMIT_MIR repr_transparent.main.DataflowConstProp.diff
+
+// CHECK-LABEL: fn main
 fn main() {
+    // CHECK: debug x => [[x:_.*]];
+    // CHECK: debug y => [[y:_.*]];
+
+    // CHECK: [[x]] = const I32(0_i32);
     let x = I32(0);
+
+    // CHECK: [[y]] = const I32(0_i32);
     let y = I32(x.0 + x.0);
 }