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// Copyright 2018 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
// `#[no_mangle]`d functions always have external linkage, i.e. no `internal` in their `define`s
#![crate_type = "lib"]
#![no_std]
// CHECK: define void @a()
#[no_mangle]
fn a() {}
// CHECK: define void @b()
#[no_mangle]
pub fn b() {}
mod private {
// CHECK: define void @c()
#[no_mangle]
fn c() {}
// CHECK: define void @d()
#[no_mangle]
pub fn d() {}
}
const HIDDEN: () = {
// CHECK: define void @e()
#[no_mangle]
fn e() {}
// CHECK: define void @f()
#[no_mangle]
pub fn f() {}
};
// The surrounding item should not accidentally become external
// CHECK: define internal{{.*}} void @_ZN22external_no_mangle_fns1x
#[inline(never)]
fn x() {
// CHECK: define void @g()
#[no_mangle]
fn g() {
x();
}
// CHECK: define void @h()
#[no_mangle]
pub fn h() {}
// side effect to keep `x` around
unsafe {
core::ptr::read_volatile(&42);
}
}
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