Auto merge of #116370 - nnethercote:more-arena-stuff, r=cjgillot

Remove the `TypedArena::alloc_from_iter` specialization. It was added in #78569. It's complicated and doesn't actually help performance. r? `@cjgillot`
2023-10-04 22:32:46 +00:00
parent 2bbb619893 a2051dd578
commit afe67fa2ef
6 changed files with 74 additions and 128 deletions
--- a/compiler/rustc_trait_selection/src/traits/vtable.rs
+++ b/compiler/rustc_trait_selection/src/traits/vtable.rs
@@ -316,7 +316,7 @@ fn vtable_entries<'tcx>(
        dump_vtable_entries(tcx, sp, trait_ref, &entries);
    }

-    tcx.arena.alloc_from_iter(entries.into_iter())
+    tcx.arena.alloc_from_iter(entries)
 }

 /// Find slot base for trait methods within vtable entries of another trait