From: Arthur Cohen <arthur.cohen@embecosm.com>
Date: Wed, 23 Aug 2023 11:50:16 +0000 (+0200)
Subject: gccrs: forever stack: Improve resolve_path implementation
X-Git-Tag: basepoints/gcc-15~1604
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66e8a1614e4cc9d3eb92f1288cf19a805b21ac1a;p=thirdparty%2Fgcc.git

gccrs: forever stack: Improve resolve_path implementation

gcc/rust/ChangeLog:

	* resolve/rust-forever-stack.hxx: Do not copy segment when
	dereferencing iterator in `find_starting_point`.
---

diff --git a/gcc/rust/resolve/rust-forever-stack.hxx b/gcc/rust/resolve/rust-forever-stack.hxx
index 8f0ab66b18b7..642135cda854 100644
--- a/gcc/rust/resolve/rust-forever-stack.hxx
+++ b/gcc/rust/resolve/rust-forever-stack.hxx
@@ -333,7 +333,7 @@ ForeverStack<N>::find_starting_point (const std::vector<S> &segments,
 
   for (; !is_last (iterator, segments); iterator++)
     {
-      auto seg = *iterator;
+      auto &seg = *iterator;
       auto is_self_or_crate
 	= seg.is_crate_path_seg () || seg.is_lower_self_seg ();