linker: Avoid some allocations in search directory iteration

2024-04-12 00:09:43 +03:00
parent aa6a697a1c
commit 4ded0b82ca
4 changed files with 21 additions and 22 deletions
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -170,7 +170,9 @@ fn configure_and_expand(
        let mut old_path = OsString::new();
        if cfg!(windows) {
            old_path = env::var_os("PATH").unwrap_or(old_path);
-            let mut new_path = sess.host_filesearch(PathKind::All).search_path_dirs();
+            let mut new_path = Vec::from_iter(
+                sess.host_filesearch(PathKind::All).search_path_dirs().map(|p| p.to_owned()),
+            );
            for path in env::split_paths(&old_path) {
                if !new_path.contains(&path) {
                    new_path.push(path);