diff --git a/tests/codegen/try_identity.rs b/tests/codegen/try_identity.rs
index 87b7d0727d080..00672e3a425b4 100644
--- a/tests/codegen/try_identity.rs
+++ b/tests/codegen/try_identity.rs
@@ -15,7 +15,7 @@ type R = Result<u64, i32>;
 pub fn try_identity(x: R) -> R {
 // CHECK: start:
 // FIXME(JakobDegen): Broken by deaggregation change CHECK-NOT\: br {{.*}}
-// CHECK ret void
+// CHECK: ret void
     let y = match into_result(x) {
         Err(e) => return from_error(From::from(e)),
         Ok(v) => v,
diff --git a/tests/mir-opt/README.md b/tests/mir-opt/README.md
index e4b252f5565b0..fd482ba5b1df4 100644
--- a/tests/mir-opt/README.md
+++ b/tests/mir-opt/README.md
@@ -59,7 +59,7 @@ on the output of a individual passes.
 
 Use `// skip-filecheck` to prevent FileCheck from running.
 
-To check MIR for function `foo`, start with a `// CHECK-LABEL fn foo(` directive.
+To check MIR for function `foo`, start with a `// CHECK-LABEL: fn foo(` directive.
 
 `{{regex}}` syntax allows to match `regex`.
 
diff --git a/tests/mir-opt/unnamed-fields/field_access.rs b/tests/mir-opt/unnamed-fields/field_access.rs
index 5badfa1646bc7..ac94499af2431 100644
--- a/tests/mir-opt/unnamed-fields/field_access.rs
+++ b/tests/mir-opt/unnamed-fields/field_access.rs
@@ -39,34 +39,34 @@ fn access<T>(_: T) {}
 
 // CHECK-LABEL: fn foo(
 fn foo(foo: Foo) {
-    // CHECK [[a:_.*]] = (_1.0: u8);
-    // CHECK _.* = access::<u8>(move [[a]]) -> [return: bb1, unwind: bb5];
+    // CHECK: [[a:_.*]] = (_1.0: u8);
+    // CHECK: _.* = access::<u8>(move [[a]]) -> [return: bb1, unwind: bb5];
     access(foo.a);
-    // CHECK [[b:_.*]] = ((_1.1: Foo::{anon_adt#0}).0: i8);
-    // CHECK _.* = access::<i8>(move [[b]]) -> [return: bb2, unwind: bb5];
+    // CHECK: [[b:_.*]] = ((_1.1: Foo::{anon_adt#0}).0: i8);
+    // CHECK: _.* = access::<i8>(move [[b]]) -> [return: bb2, unwind: bb5];
     access(foo.b);
-    // CHECK [[c:_.*]] = ((_1.1: Foo::{anon_adt#0}).1: bool);
-    // CHECK _.* = access::<bool>(move [[c]]) -> [return: bb3, unwind: bb5];
+    // CHECK: [[c:_.*]] = ((_1.1: Foo::{anon_adt#0}).1: bool);
+    // CHECK: _.* = access::<bool>(move [[c]]) -> [return: bb3, unwind: bb5];
     access(foo.c);
-    // CHECK [[d:_.*]] = (((_1.2: Foo::{anon_adt#1}).0: Foo::{anon_adt#1}::{anon_adt#0}).0: [u8; 1]);
-    // CHECK _.* = access::<[u8; 1]>(move [[d]]) -> [return: bb4, unwind: bb5];
+    // CHECK: [[d:_.*]] = (((_1.2: Foo::{anon_adt#1}).0: Foo::{anon_adt#1}::{anon_adt#0}).0: [u8; 1]);
+    // CHECK: _.* = access::<[u8; 1]>(move [[d]]) -> [return: bb4, unwind: bb5];
     access(foo.d);
 }
 
 // CHECK-LABEL: fn bar(
 fn bar(bar: Bar) {
     unsafe {
-        // CHECK [[a:_.*]] = (_1.0: u8);
-        // CHECK _.* = access::<u8>(move [[a]]) -> [return: bb1, unwind: bb5];
+        // CHECK: [[a:_.*]] = (_1.0: u8);
+        // CHECK: _.* = access::<u8>(move [[a]]) -> [return: bb1, unwind: bb5];
         access(bar.a);
-        // CHECK [[b:_.*]] = ((_1.1: Bar::{anon_adt#0}).0: i8);
-        // CHECK _.* = access::<i8>(move [[b]]) -> [return: bb2, unwind: bb5];
+        // CHECK: [[b:_.*]] = ((_1.1: Bar::{anon_adt#0}).0: i8);
+        // CHECK: _.* = access::<i8>(move [[b]]) -> [return: bb2, unwind: bb5];
         access(bar.b);
-        // CHECK [[c:_.*]] = ((_1.1: Bar::{anon_adt#0}).1: bool);
-        // CHECK _.* = access::<bool>(move [[c]]) -> [return: bb3, unwind: bb5];
+        // CHECK: [[c:_.*]] = ((_1.1: Bar::{anon_adt#0}).1: bool);
+        // CHECK: _.* = access::<bool>(move [[c]]) -> [return: bb3, unwind: bb5];
         access(bar.c);
-        // CHECK [[d:_.*]] = (((_1.2: Bar::{anon_adt#1}).0: Bar::{anon_adt#1}::{anon_adt#0}).0: [u8; 1]);
-        // CHECK _.* = access::<[u8; 1]>(move [[d]]) -> [return: bb4, unwind: bb5];
+        // CHECK: [[d:_.*]] = (((_1.2: Bar::{anon_adt#1}).0: Bar::{anon_adt#1}::{anon_adt#0}).0: [u8; 1]);
+        // CHECK: _.* = access::<[u8; 1]>(move [[d]]) -> [return: bb4, unwind: bb5];
         access(bar.d);
     }
 }