From 8d473cf9743f1d30a16a27114e93bd5af5648d23 Mon Sep 17 00:00:00 2001
From: Simon Hausmann <simon.hausmann@nokia.com>
Date: Fri, 18 May 2012 14:03:11 +0200
Subject: Imported WebKit commit 1350e72f7345ced9da2bd9980deeeb5a8d62fab4
 (http://svn.webkit.org/repository/webkit/trunk@117578)

Weekly snapshot
---
 Source/JavaScriptCore/dfg/DFGDriver.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'Source/JavaScriptCore/dfg/DFGDriver.cpp')

diff --git a/Source/JavaScriptCore/dfg/DFGDriver.cpp b/Source/JavaScriptCore/dfg/DFGDriver.cpp
index 205e94e6b..f583a8d63 100644
--- a/Source/JavaScriptCore/dfg/DFGDriver.cpp
+++ b/Source/JavaScriptCore/dfg/DFGDriver.cpp
@@ -58,6 +58,12 @@ inline bool compile(CompileMode compileMode, JSGlobalData& globalData, CodeBlock
     
     if (compileMode == CompileFunction)
         dfg.predictArgumentTypes();
+    
+    // By this point the DFG bytecode parser will have potentially mutated various tables
+    // in the CodeBlock. This is a good time to perform an early shrink, which is more
+    // powerful than a late one. It's safe to do so because we haven't generated any code
+    // that references any of the tables directly, yet.
+    codeBlock->shrinkToFit(CodeBlock::EarlyShrink);
 
     performRedundantPhiElimination(dfg);
     performPredictionPropagation(dfg);
-- 
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