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rustc: Fix some ThinLTO internalization

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First the `addPreservedGUID` function forgot to take care of "alias" summaries.
I'm not 100% sure what this is but the current code now matches upstream. Next
the `computeDeadSymbols` return value wasn't actually being used, but it needed
to be used! Together these should...

Closes #45195
This commit is contained in:
Alex Crichton 2017-10-11 11:19:59 -07:00
parent df095cefe2
commit 2e1c4cd0f5
8 changed files with 67 additions and 10 deletions
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16
src/test/run-pass/thinlto/auxiliary/dylib.rs Normal file
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// 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.
// compile-flags: -Z thinlto -C codegen-units=8
#[inline]
pub fn foo(b: u8) {
b.to_string();
}

17
src/test/run-pass/thinlto/auxiliary/thin-lto-inlines-aux.rs Normal file
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// 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.
// no-prefer-dynamic
#![crate_type = "rlib"]
pub fn bar() -> u32 {
3
}