2 files changed, 123 insertions, 0 deletions
diff --git a/test/passes/precompute_all-features.txt b/test/passes/precompute_all-features.txt
index 9a6fea94b..34c9554dd 100644
--- a/test/passes/precompute_all-features.txt
+++ b/test/passes/precompute_all-features.txt
@@ -261,4 +261,54 @@
  (func $reftype-test (result nullref)
   (ref.null)
  )
+ (func $dummy
+  (nop)
+ )
+ (func $br_reuse_node
+  (drop
+   (block $l0 (result f32)
+    (drop
+     (block $l1
+      (global.set $global-mut
+       (i32.const 1)
+      )
+      (br $l0
+       (f32.const 3.5)
+      )
+     )
+    )
+    (f32.const 0)
+   )
+  )
+  (drop
+   (block $l2 (result nullref)
+    (drop
+     (block $l3
+      (global.set $global-mut
+       (i32.const 1)
+      )
+      (br $l2
+       (ref.null)
+      )
+     )
+    )
+    (ref.null)
+   )
+  )
+  (drop
+   (block $l4 (result funcref)
+    (drop
+     (block $l5
+      (global.set $global-mut
+       (i32.const 1)
+      )
+      (br $l4
+       (ref.func $dummy)
+      )
+     )
+    )
+    (ref.null)
+   )
+  )
+ )
 )
diff --git a/test/passes/precompute_all-features.wast b/test/passes/precompute_all-features.wast
index da755bde6..2a59ea290 100644
--- a/test/passes/precompute_all-features.wast
+++ b/test/passes/precompute_all-features.wast
@@ -381,4 +381,77 @@
   (func $reftype-test (result nullref)
     (ref.null)
   )
+
+  ;; Check if constant nodes (const, ref.null, and ref.func) are correctly
+  ;; reused. (We shouldn't reuse a const node for something like ref.null, which
+  ;; will incorrectly cause an expression like 'nullref.const'.)
+  (func $dummy)
+  (func $br_reuse_node
+   (drop
+    (block $l0 (result f32)
+     (drop
+      (block $l1 (result i32)
+       (global.set $global-mut
+        (i32.const 1)
+       )
+       (br_if $l1
+        (i32.const 1)
+        (f32.lt
+         (br_if $l0
+          (f32.const 3.5)
+          (i32.const 1)
+         )
+         (f32.const 3)
+        )
+       )
+      )
+     )
+     (f32.const 0)
+    )
+   )
+
+   (drop
+    (block $l2 (result nullref)
+     (drop
+      (block $l3 (result i32)
+       (global.set $global-mut
+        (i32.const 1)
+       )
+       (br_if $l3
+        (i32.const 1)
+        (ref.is_null
+         (br_if $l2
+          (ref.null)
+          (i32.const 3)
+         )
+        )
+       )
+      )
+     )
+     (ref.null)
+    )
+   )
+
+   (drop
+    (block $l4 (result funcref)
+     (drop
+      (block $l5 (result i32)
+       (global.set $global-mut
+        (i32.const 1)
+       )
+       (br_if $l5
+        (i32.const 1)
+        (ref.is_null
+         (br_if $l4
+          (ref.func $dummy)
+          (i32.const 3)
+         )
+        )
+       )
+      )
+     )
+     (ref.null)
+    )
+   )
+  )
 )