From 9ddd54d16d19dedcfcd0020f47d089c587775eb9 Mon Sep 17 00:00:00 2001
From: David Neto <dneto@google.com>
Date: Fri, 10 Jun 2016 06:41:20 -0400
Subject: [PATCH] Avoid copy of work list argument: make it const ref

---
 source/validate_cfg.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/source/validate_cfg.cpp b/source/validate_cfg.cpp
index ef41db0..136cbdc 100644
--- a/source/validate_cfg.cpp
+++ b/source/validate_cfg.cpp
@@ -74,8 +74,8 @@ struct block_info {
 /// @param[in] id The ID of the block being checked
 /// @return true if the edge work_list.back().block->get_id() => id is a
 /// back-edge
-bool FindInWorkList(vector<block_info> work_list, uint32_t id) {
-  for (auto b : work_list) {
+bool FindInWorkList(const vector<block_info>& work_list, uint32_t id) {
+  for (const auto b : work_list) {
     if (b.block->get_id() == id) return true;
   }
   return false;
-- 
2.7.4