1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // compile-flags: -C no-prepopulate-passes
12 // ignore-tidy-linelength
14 #![crate_type = "lib"]
16 // Hack to get the correct size for the length part in slices
17 // CHECK: @helper([[USIZE:i[0-9]+]] %arg0)
19 pub fn helper(_: usize) {
22 // CHECK-LABEL: @ref_dst
24 pub fn ref_dst(s: &[u8]) {
25 // We used to generate an extra alloca and memcpy to ref the dst, so check that we copy
26 // directly to the alloca for "x"
27 // CHECK: [[X0:%[0-9]+]] = getelementptr {{.*}} { [0 x i8]*, [[USIZE]] }* %x, i32 0, i32 0
28 // CHECK: store [0 x i8]* %s.0, [0 x i8]** [[X0]]
29 // CHECK: [[X1:%[0-9]+]] = getelementptr {{.*}} { [0 x i8]*, [[USIZE]] }* %x, i32 0, i32 1
30 // CHECK: store [[USIZE]] %s.1, [[USIZE]]* [[X1]]
33 &x; // keep variable in an alloca