| // Copyright 2015 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. |
| |
| // compile-flags: -C no-prepopulate-passes |
| // ignore-tidy-linelength |
| |
| #![crate_type = "lib"] |
| |
| // Hack to get the correct size for the length part in slices |
| // CHECK: @helper([[USIZE:i[0-9]+]] %arg0) |
| #[no_mangle] |
| pub fn helper(_: usize) { |
| } |
| |
| // CHECK-LABEL: @ref_dst |
| #[no_mangle] |
| pub fn ref_dst(s: &[u8]) { |
| // We used to generate an extra alloca and memcpy to ref the dst, so check that we copy |
| // directly to the alloca for "x" |
| // CHECK: [[X0:%[0-9]+]] = getelementptr {{.*}} { [0 x i8]*, [[USIZE]] }* %x, i32 0, i32 0 |
| // CHECK: store [0 x i8]* %s.0, [0 x i8]** [[X0]] |
| // CHECK: [[X1:%[0-9]+]] = getelementptr {{.*}} { [0 x i8]*, [[USIZE]] }* %x, i32 0, i32 1 |
| // CHECK: store [[USIZE]] %s.1, [[USIZE]]* [[X1]] |
| |
| let x = &*s; |
| &x; // keep variable in an alloca |
| } |
