check_doc_keyword: don't alloc string for emptiness check

check_doc_alias_value: get argument as Symbol to prevent needless string convertions

check_doc_attrs: don't alloc vec, iterate over slice. Vec introduced in #83149, but no perf run posted on merge

replace as_str() check with symbol check

get_single_str_from_tts: don't prealloc string

trivial string to str replace

LifetimeScopeForPath::NonElided use Vec<Symbol> instead of Vec<String>

AssertModuleSource use BTreeSet<Symbol> instead of BTreeSet<String>

CrateInfo.crate_name replace FxHashMap<CrateNum, String> with FxHashMap<CrateNum, Symbol>

1 files changed, 2 insertions, 2 deletions

diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs
index a727da05704..cf32d558d4a 100644
--- a/compiler/rustc_codegen_ssa/src/back/link.rs
+++ b/compiler/rustc_codegen_ssa/src/back/link.rs
@@ -216,7 +216,7 @@ pub fn each_linked_rlib(
             Some(_) => {}
             None => return Err("could not find formats for rlibs".to_string()),
         }
-        let name = &info.crate_name[&cnum];
+        let name = info.crate_name[&cnum];
         let used_crate_source = &info.used_crate_source[&cnum];
         if let Some((path, _)) = &used_crate_source.rlib {
             f(cnum, &path);
@@ -467,7 +467,7 @@ fn link_staticlib<'a, B: ArchiveBuilder<'a>>(
     let mut all_native_libs = vec![];
 
     let res = each_linked_rlib(&codegen_results.crate_info, &mut |cnum, path| {
-        let name = &codegen_results.crate_info.crate_name[&cnum];
+        let name = codegen_results.crate_info.crate_name[&cnum];
         let native_libs = &codegen_results.crate_info.native_libraries[&cnum];
 
         // Here when we include the rlib into our staticlib we need to make a