From de4f791e30be4e4239b381c11745ffa4d87ddb8b Mon Sep 17 00:00:00 2001
From: Simon Hausmann <simon.hausmann@digia.com>
Date: Fri, 9 Nov 2012 12:15:52 +0100
Subject: Imported WebKit commit e2c32e2f53e02d388e70b9db88b91d8d9d28fc84
 (http://svn.webkit.org/repository/webkit/trunk@133952)

Revert back to an older snapshot that should build on ARM
---
 Source/JavaScriptCore/runtime/CodeCache.h | 50 +++++--------------------------
 1 file changed, 8 insertions(+), 42 deletions(-)

(limited to 'Source/JavaScriptCore/runtime/CodeCache.h')

diff --git a/Source/JavaScriptCore/runtime/CodeCache.h b/Source/JavaScriptCore/runtime/CodeCache.h
index 740aaa6df..4d4617189 100644
--- a/Source/JavaScriptCore/runtime/CodeCache.h
+++ b/Source/JavaScriptCore/runtime/CodeCache.h
@@ -34,7 +34,6 @@
 #include <wtf/FixedArray.h>
 #include <wtf/Forward.h>
 #include <wtf/PassOwnPtr.h>
-#include <wtf/RandomNumber.h>
 #include <wtf/text/WTFString.h>
 
 namespace JSC {
@@ -52,41 +51,6 @@ struct ParserError;
 class SourceCode;
 class SourceProvider;
 
-template <typename KeyType, typename EntryType, int CacheSize> class Thingy {
-    typedef typename HashMap<KeyType, unsigned>::iterator iterator;
-public:
-    Thingy()
-    : m_randomGenerator((static_cast<uint32_t>(randomNumber() * UINT32_MAX)))
-    {
-    }
-    const EntryType* find(const KeyType& key)
-    {
-        iterator result = m_map.find(key);
-        if (result == m_map.end())
-            return 0;
-        return &m_data[result->value].second;
-    }
-    void add(const KeyType& key, const EntryType& value)
-    {
-        iterator result = m_map.find(key);
-        if (result != m_map.end()) {
-            m_data[result->value].second = value;
-            return;
-        }
-        size_t newIndex = m_randomGenerator.getUint32() % CacheSize;
-        if (m_data[newIndex].second)
-            m_map.remove(m_data[newIndex].first);
-        m_map.add(key, newIndex);
-        m_data[newIndex].first = key;
-        m_data[newIndex].second = value;
-        ASSERT(m_map.size() <= CacheSize);
-    }
-private:
-    HashMap<KeyType, unsigned> m_map;
-    FixedArray<std::pair<KeyType, EntryType>, CacheSize> m_data;
-    WeakRandom m_randomGenerator;
-};
-
 class CodeCache {
 public:
     static PassOwnPtr<CodeCache> create() { return adoptPtr(new CodeCache); }
@@ -95,12 +59,13 @@ public:
     UnlinkedEvalCodeBlock* getEvalCodeBlock(JSGlobalData&, EvalExecutable*, const SourceCode&, JSParserStrictness, DebuggerMode, ProfilerMode, ParserError&);
     UnlinkedFunctionCodeBlock* getFunctionCodeBlock(JSGlobalData&, UnlinkedFunctionExecutable*, const SourceCode&, CodeSpecializationKind, DebuggerMode, ProfilerMode, ParserError&);
     UnlinkedFunctionExecutable* getFunctionExecutableFromGlobalCode(JSGlobalData&, const Identifier&, const SourceCode&, ParserError&);
-    void usedFunctionCode(JSGlobalData&, UnlinkedFunctionCodeBlock*);
     ~CodeCache();
 
     enum CodeType { EvalType, ProgramType, FunctionType };
     typedef std::pair<String, unsigned> CodeBlockKey;
+    typedef HashMap<CodeBlockKey, unsigned> CodeBlockIndicesMap;
     typedef std::pair<String, String> GlobalFunctionKey;
+    typedef HashMap<GlobalFunctionKey, unsigned> GlobalFunctionIndicesMap;
 
 private:
     CodeCache();
@@ -109,17 +74,18 @@ private:
 
     template <class UnlinkedCodeBlockType, class ExecutableType> inline UnlinkedCodeBlockType* getCodeBlock(JSGlobalData&, ExecutableType*, const SourceCode&, JSParserStrictness, DebuggerMode, ProfilerMode, ParserError&);
     CodeBlockKey makeCodeBlockKey(const SourceCode&, CodeType, JSParserStrictness);
+    CodeBlockIndicesMap m_cachedCodeBlockIndices;
     GlobalFunctionKey makeGlobalFunctionKey(const SourceCode&, const String&);
+    GlobalFunctionIndicesMap m_cachedGlobalFunctionIndices;
 
     enum {
         kMaxCodeBlockEntries = 1024,
-        kMaxGlobalFunctionEntries = 1024,
-        kMaxFunctionCodeBlocks = 1024
+        kMaxGlobalFunctionEntries = 1024
     };
 
-    Thingy<CodeBlockKey, Strong<UnlinkedCodeBlock>, kMaxCodeBlockEntries> m_cachedCodeBlocks;
-    Thingy<GlobalFunctionKey, Strong<UnlinkedFunctionExecutable>, kMaxGlobalFunctionEntries> m_cachedGlobalFunctions;
-    Thingy<UnlinkedFunctionCodeBlock*, Strong<UnlinkedFunctionCodeBlock>, kMaxFunctionCodeBlocks> m_cachedFunctionCode;
+    FixedArray<std::pair<CodeBlockKey, Strong<UnlinkedCodeBlock> >, kMaxCodeBlockEntries> m_cachedCodeBlocks;
+    FixedArray<std::pair<GlobalFunctionKey, Strong<UnlinkedFunctionExecutable> >, kMaxGlobalFunctionEntries> m_cachedGlobalFunctions;
+    WeakRandom m_randomGenerator;
 };
 
 }
-- 
cgit v1.2.1