1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/ui/mir/issue-77359-simplify-arm-identity.rs b/src/test/ui/mir/issue-77359-simplify-arm-identity.rs
new file mode 100644
index 000000000..e58ba50a9
--- /dev/null
+++ b/src/test/ui/mir/issue-77359-simplify-arm-identity.rs
@@ -0,0 +1,35 @@
+// run-pass
+
+#![allow(dead_code)]
+
+#[derive(Debug)]
+enum MyEnum {
+    Variant1(Vec<u8>),
+    Variant2,
+    Variant3,
+    Variant4,
+}
+
+fn f(arg1: &bool, arg2: &bool, arg3: bool) -> MyStruct {
+    if *arg1 {
+        println!("{:?}", f(&arg2, arg2, arg3));
+        MyStruct(None)
+    } else {
+        match if arg3 { Some(MyEnum::Variant3) } else { None } {
+            Some(t) => {
+                let ah = t;
+                return MyStruct(Some(ah));
+            }
+            _ => MyStruct(None)
+        }
+    }
+}
+
+#[derive(Debug)]
+struct MyStruct(Option<MyEnum>);
+
+fn main() {
+    let arg1 = true;
+    let arg2 = false;
+    f(&arg1, &arg2, true);
+}