From e8d6188499260d599b2002d1b17405220d22869a Mon Sep 17 00:00:00 2001
From: "Alon Zakai (kripken)" <alonzakai@gmail.com>
Date: Tue, 31 Jan 2017 14:17:39 -0800
Subject: use MixedArena in asm.js ast

---
 src/passes/MergeBlocks.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/passes/MergeBlocks.cpp')

diff --git a/src/passes/MergeBlocks.cpp b/src/passes/MergeBlocks.cpp
index 467ffb4ed..383837beb 100644
--- a/src/passes/MergeBlocks.cpp
+++ b/src/passes/MergeBlocks.cpp
@@ -190,7 +190,7 @@ static void optimizeBlock(Block* curr, Module* module) {
       for (size_t j = i + 1; j < curr->list.size(); j++) {
         merged.push_back(curr->list[j]);
       }
-      curr->list = merged;
+      curr->list.swap(merged);
       more = true;
       changed = true;
       break;
-- 
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