| // RUN: %target-run-simple-swift | %FileCheck %s | |
| // REQUIRES: executable_test | |
| // <rdar://problem/13995785> We were using the wrong type metadata pointer for the empty | |
| // tuple. | |
| func dup<T>(_ x: T) -> (T, T) { | |
| return (x, x) | |
| } | |
| func drop<T>(_ x: T) {} | |
| var x = () | |
| drop(dup(x)) | |
| print("ok") // CHECK: ok |