1 files changed, 32 insertions, 0 deletions
diff --git a/tests/mir-opt/copy-prop/custom_move_arg.rs b/tests/mir-opt/copy-prop/custom_move_arg.rs
new file mode 100644
index 000000000..4a591146e
--- /dev/null
+++ b/tests/mir-opt/copy-prop/custom_move_arg.rs
@@ -0,0 +1,32 @@
+// unit-test: CopyProp
+
+#![feature(custom_mir, core_intrinsics)]
+#![allow(unused_assignments)]
+extern crate core;
+use core::intrinsics::mir::*;
+
+struct NotCopy(bool);
+
+// EMIT_MIR custom_move_arg.f.CopyProp.diff
+#[custom_mir(dialect = "analysis", phase = "post-cleanup")]
+fn f(_1: NotCopy) {
+    mir!({
+        let _2 = _1;
+        Call(RET, bb1, opaque(Move(_1)))
+    }
+    bb1 = {
+        let _3 = Move(_2);
+        Call(RET, bb2, opaque(_3))
+    }
+    bb2 = {
+        Return()
+    })
+}
+
+#[inline(never)]
+fn opaque<T>(_t: T) {}
+
+fn main() {
+    f(NotCopy(true));
+    println!("hi");
+}