lto function, static_library call, rename

src/tools/run-make-support/src/rustc.rs

@@ -150,10 +150,9 @@ impl Rustc {
  self
  }
 
- /// Pass a codegen option.
- pub fn codegen_option(&mut self, option: &str) -> &mut Self {
- self.cmd.arg("-C");
- self.cmd.arg(option);
+ /// Enables link time optimizations in rustc. Equivalent to `-Clto``.
+ pub fn lto(&mut self) -> &mut Self {
+ self.cmd.arg("-Clto");
  self
  }
 

tests/run-make/issue-14500/rmake.rs → tests/run-make/reachable-extern-fn-available-lto/rmake.rs

@@ -1,5 +1,5 @@
 // Test to make sure that reachable extern fns are always available in final
-// productcs, including when LTO is used.
+// productcs, including when link time optimizations (LTO) are used.
 
 // In this test, the `foo` crate has a reahable symbol,
 // and is a dependency of the `bar` crate. When the `bar` crate
@@ -9,15 +9,15 @@
 
 //@ ignore-cross-compile
 
-use run_make_support::{cc, extra_c_flags, run, rustc, tmp_dir};
+use run_make_support::{cc, extra_c_flags, run, rustc, static_lib, tmp_dir};
 
 fn main() {
- let libbar_path = tmp_dir().join("libbar.a");
+ let libbar_path = static_lib("bar");
  rustc().input("foo.rs").crate_type("rlib").run();
  rustc()
  .input("bar.rs")
  .crate_type("staticlib")
- .codegen_option("lto")
+ .lto()
  .library_search_path(".")
  .output(&libbar_path)
  .run();