1 files changed, 48 insertions, 0 deletions
diff --git a/test/lit/if-then-else.wast b/test/lit/if-then-else.wast
new file mode 100644
index 000000000..9d457bef1
--- /dev/null
+++ b/test/lit/if-then-else.wast
@@ -0,0 +1,48 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
+;; RUN: wasm-opt %s -S -o - | filecheck %s
+
+;; Check that an empty then or else clause is allowed.
+(module
+  ;; CHECK:      (func $test (param $0 i32) (result i32)
+  ;; CHECK-NEXT:  (if
+  ;; CHECK-NEXT:   (local.get $0)
+  ;; CHECK-NEXT:   (block
+  ;; CHECK-NEXT:   )
+  ;; CHECK-NEXT:   (return
+  ;; CHECK-NEXT:    (i32.const 0)
+  ;; CHECK-NEXT:   )
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT:  (if
+  ;; CHECK-NEXT:   (local.get $0)
+  ;; CHECK-NEXT:   (return
+  ;; CHECK-NEXT:    (i32.const 1)
+  ;; CHECK-NEXT:   )
+  ;; CHECK-NEXT:   (block
+  ;; CHECK-NEXT:   )
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT:  (return
+  ;; CHECK-NEXT:   (i32.const 2)
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT: )
+  (func $test (param i32) (result i32)
+    (if
+       (local.get $0)
+       (then)
+       (else
+          (return (i32.const 0))
+       )
+    )
+    (if
+       (local.get $0)
+       (then
+         (return
+           (i32.const 1)
+         )
+       )
+       (else)
+    )
+    (return
+      (i32.const 2)
+    )
+  )
+)