let inline_in_all_cgus =
tcx.sess.opts.debugging_opts.inline_in_all_cgus.unwrap_or_else(|| {
tcx.sess.opts.optimize != OptLevel::No
- });
+ }) && !tcx.sess.opts.cg.link_dead_code;
match *self.as_mono_item() {
MonoItem::Fn(ref instance) => {
// Next we try to make as many symbols "internal" as possible, so LLVM has
// more freedom to optimize.
- internalize_symbols(tcx, &mut post_inlining, inlining_map);
+ if !tcx.sess.opts.cg.link_dead_code {
+ internalize_symbols(tcx, &mut post_inlining, inlining_map);
+ }
// Finally, sort by codegen unit name, so that we get deterministic results
let PostInliningPartitioning {
MonoItemCollectionMode::Lazy
}
}
- None => MonoItemCollectionMode::Lazy
+ None => {
+ if tcx.sess.opts.cg.link_dead_code {
+ MonoItemCollectionMode::Eager
+ } else {
+ MonoItemCollectionMode::Lazy
+ }
+ }
};
let (items, inlining_map) =
--- /dev/null
+// 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:-Clink-dead-code
+
+#![feature(const_fn)]
+#![crate_type = "rlib"]
+
+// This test makes sure that, when -Clink-dead-code is specified, we generate
+// code for functions that would otherwise be skipped.
+
+// CHECK-LABEL: define hidden i32 @_ZN14link_dead_code8const_fn
+const fn const_fn() -> i32 { 1 }
+
+// CHECK-LABEL: define hidden i32 @_ZN14link_dead_code9inline_fn
+#[inline]
+fn inline_fn() -> i32 { 2 }
+
+// CHECK-LABEL: define hidden i32 @_ZN14link_dead_code10private_fn
+fn private_fn() -> i32 { 3 }