From 7dc36e9d9991608c59ac9e40e89573318cd08b74 Mon Sep 17 00:00:00 2001
From: topecongiro <seuchida@gmail.com>
Date: Tue, 7 Mar 2017 00:19:48 +0900
Subject: Add tests for issues with the 'E-needtest' label.

---
 src/test/codegen/issue-15953.rs | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/test/codegen/issue-15953.rs

(limited to 'src/test/codegen')

diff --git a/src/test/codegen/issue-15953.rs b/src/test/codegen/issue-15953.rs
new file mode 100644
index 00000000000..320ea6b5cc4
--- /dev/null
+++ b/src/test/codegen/issue-15953.rs
@@ -0,0 +1,39 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Test that llvm generates `memcpy` for moving a value
+// inside a function and moving an argument.
+
+struct Foo {
+    x: Vec<i32>,
+}
+
+#[inline(never)]
+#[no_mangle]
+// CHECK: memcpy
+fn interior(x: Vec<i32>) -> Vec<i32> {
+    let Foo { x } = Foo { x: x };
+    x
+}
+
+#[inline(never)]
+#[no_mangle]
+// CHECK: memcpy
+fn exterior(x: Vec<i32>) -> Vec<i32> {
+    x
+}
+
+fn main() {
+    let x = interior(Vec::new());
+    println!("{:?}", x);
+
+    let x = exterior(Vec::new());
+    println!("{:?}", x);
+}
-- 
cgit 1.4.1-3-g733a5