1 files changed, 83 insertions, 0 deletions
diff --git a/test/lit/cast-to-basic.wast b/test/lit/cast-to-basic.wast
new file mode 100644
index 000000000..c6b8ea9e7
--- /dev/null
+++ b/test/lit/cast-to-basic.wast
@@ -0,0 +1,83 @@
+;; NOTE: Assertions have been generated by update_lit_checks.py and should not be edited.
+
+;; Test that casts to basic types round trip properly.
+
+;; RUN: wasm-opt %s -all --roundtrip -S -o - | filecheck %s
+
+(module
+  ;; CHECK:      (func $test (type $none_=>_i32) (result i32)
+  ;; CHECK-NEXT:  (ref.test data
+  ;; CHECK-NEXT:   (ref.null none)
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT: )
+  (func $test (result i32)
+    (ref.test struct
+      (ref.null none)
+    )
+  )
+
+  ;; CHECK:      (func $cast (type $none_=>_none)
+  ;; CHECK-NEXT:  (drop
+  ;; CHECK-NEXT:   (ref.cast null data
+  ;; CHECK-NEXT:    (ref.null none)
+  ;; CHECK-NEXT:   )
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT: )
+  (func $cast
+    (drop
+      (ref.cast null struct
+        (ref.null none)
+      )
+    )
+  )
+
+  ;; CHECK:      (func $br (type $none_=>_none)
+  ;; CHECK-NEXT:  (drop
+  ;; CHECK-NEXT:   (block $label$1 (result dataref)
+  ;; CHECK-NEXT:    (drop
+  ;; CHECK-NEXT:     (br_on_cast $label$1 data
+  ;; CHECK-NEXT:      (ref.null none)
+  ;; CHECK-NEXT:     )
+  ;; CHECK-NEXT:    )
+  ;; CHECK-NEXT:    (ref.null none)
+  ;; CHECK-NEXT:   )
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT: )
+  (func $br
+    (drop
+      (block $l (result structref)
+        (drop
+          (br_on_cast $l struct
+            (ref.null none)
+          )
+        )
+        (ref.null none)
+      )
+    )
+  )
+
+  ;; CHECK:      (func $br-fail (type $none_=>_none)
+  ;; CHECK-NEXT:  (drop
+  ;; CHECK-NEXT:   (block $label$1 (result dataref)
+  ;; CHECK-NEXT:    (drop
+  ;; CHECK-NEXT:     (br_on_cast_fail $label$1 data
+  ;; CHECK-NEXT:      (ref.null none)
+  ;; CHECK-NEXT:     )
+  ;; CHECK-NEXT:    )
+  ;; CHECK-NEXT:    (ref.null none)
+  ;; CHECK-NEXT:   )
+  ;; CHECK-NEXT:  )
+  ;; CHECK-NEXT: )
+  (func $br-fail
+    (drop
+      (block $l (result structref)
+        (drop
+          (br_on_cast_fail $l struct
+            (ref.null none)
+          )
+        )
+        (ref.null none)
+      )
+    )
+  )
+)