1 files changed, 36 insertions, 0 deletions
diff --git a/test/passes/optimize-instructions.wast b/test/passes/optimize-instructions.wast
index bb89d7314..88b2bcdfe 100644
--- a/test/passes/optimize-instructions.wast
+++ b/test/passes/optimize-instructions.wast
@@ -2359,4 +2359,40 @@
       )
     )
   )
+  (func $zero-shifts-is-not-sign-ext
+   (drop
+    (i32.eq
+     (i32.const -5431187)
+     (i32.add
+      (i32.const 0)
+      (i32.shr_s
+       (i32.shl
+        (i32.load16_s align=1
+         (i32.const 790656516)
+        )
+        (i32.const 0)
+       )
+       (i32.const 0)
+      )
+     )
+    )
+   )
+   (drop
+    (i32.eq
+     (i32.const -5431187)
+     (i32.add
+      (i32.const 0)
+      (i32.shr_s
+       (i32.shl
+        (i32.load16_s align=1
+         (i32.const 790656516)
+        )
+        (i32.const 1)
+       )
+       (i32.const 0)
+      )
+     )
+    )
+   )
+  )
 )