add a file-level comment to the string-push codegen test

rust-lang · Dec 20, 2024 · a2effde · a2effde
1 parent 94d8652
commit a2effde
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/tests/codegen/string-push.rs b/tests/codegen/string-push.rs
@@ -1,3 +1,5 @@
+//! Check that `String::push` is optimized enough not to call `memcpy`.
+
 //@ compile-flags: -O
 #![crate_type = "lib"]