diff --git a/test/lit/passes/simplify-locals.wast b/test/lit/passes/simplify-locals.wast
new file mode 100644
index 00000000000..11dcacfa060
--- /dev/null
+++ b/test/lit/passes/simplify-locals.wast
@@ -0,0 +1,52 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
+
+;; RUN: wasm-opt %s --simplify-locals -S -o - | filecheck %s
+
+(module
+ ;; CHECK:      (func $sink-from-inside (result i32)
+ ;; CHECK-NEXT:  (local $0 i32)
+ ;; CHECK-NEXT:  (local $1 i32)
+ ;; CHECK-NEXT:  (local $2 i32)
+ ;; CHECK-NEXT:  (nop)
+ ;; CHECK-NEXT:  (i32.and
+ ;; CHECK-NEXT:   (select
+ ;; CHECK-NEXT:    (i32.const 0)
+ ;; CHECK-NEXT:    (i32.const 1)
+ ;; CHECK-NEXT:    (i32.const 1)
+ ;; CHECK-NEXT:   )
+ ;; CHECK-NEXT:   (block (result i32)
+ ;; CHECK-NEXT:    (nop)
+ ;; CHECK-NEXT:    (nop)
+ ;; CHECK-NEXT:    (nop)
+ ;; CHECK-NEXT:    (i32.const 1)
+ ;; CHECK-NEXT:   )
+ ;; CHECK-NEXT:  )
+ ;; CHECK-NEXT: )
+ (func $sink-from-inside (result i32)
+  (local $0 i32)
+  (local $1 i32)
+  (local $2 i32)
+  (local.set $2
+   (block (result i32)
+    (local.set $0
+     (i32.const 1)
+    )
+    (drop
+     (local.get $0)
+    )
+    (local.set $1 ;; after we sink this, must be careful about sinking the parent, to not reorder other things badly
+     (select
+      (i32.const 0)
+      (i32.const 1)
+      (local.get $0)
+     )
+    )
+    (i32.const 1)
+   )
+  )
+  (i32.and
+   (local.get $1)
+   (local.get $2)
+  )
+ )
+)
diff --git a/test/passes/simplify-locals.txt b/test/passes/simplify-locals.txt
deleted file mode 100644
index d5aa1ac4090..00000000000
--- a/test/passes/simplify-locals.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-(module
- (type $0 (func (result i32)))
- (func $sink-from-inside (result i32)
-  (local $0 i32)
-  (local $1 i32)
-  (local $2 i32)
-  (nop)
-  (i32.and
-   (select
-    (i32.const 0)
-    (i32.const 1)
-    (i32.const 1)
-   )
-   (block (result i32)
-    (nop)
-    (nop)
-    (nop)
-    (i32.const 1)
-   )
-  )
- )
-)
diff --git a/test/passes/simplify-locals.wast b/test/passes/simplify-locals.wast
deleted file mode 100644
index 3208b76de50..00000000000
--- a/test/passes/simplify-locals.wast
+++ /dev/null
@@ -1,29 +0,0 @@
-(module
- (func $sink-from-inside (result i32)
-  (local $0 i32)
-  (local $1 i32)
-  (local $2 i32)
-  (local.set $2
-   (block (result i32)
-    (local.set $0
-     (i32.const 1)
-    )
-    (drop
-     (local.get $0)
-    )
-    (local.set $1 ;; after we sink this, must be careful about sinking the parent, to not reorder other things badly
-     (select
-      (i32.const 0)
-      (i32.const 1)
-      (local.get $0)
-     )
-    )
-    (i32.const 1)
-   )
-  )
-  (i32.and
-   (local.get $1)
-   (local.get $2)
-  )
- )
-)