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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/188699">188699</a></dd>
<dt>Author</dt> <dd>commit-queue@webkit.org</dd>
<dt>Date</dt> <dd>2015-08-20 14:09:19 -0700 (Thu, 20 Aug 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Unreviewed, rolling out <a href="http://trac.webkit.org/projects/webkit/changeset/188675">r188675</a>.
https://bugs.webkit.org/show_bug.cgi?id=148244
"caused a 17% Mac PLT regression" (Requested by ggaren on
#webkit).
Reverted changeset:
"clearCode() should clear code"
https://bugs.webkit.org/show_bug.cgi?id=148203
http://trac.webkit.org/changeset/188675</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecodeUnlinkedFunctionExecutableh">trunk/Source/JavaScriptCore/bytecode/UnlinkedFunctionExecutable.h</a></li>
<li><a href="#trunkSourceJavaScriptCoredebuggerDebuggercpp">trunk/Source/JavaScriptCore/debugger/Debugger.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreheapHeapcpp">trunk/Source/JavaScriptCore/heap/Heap.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreheapHeaph">trunk/Source/JavaScriptCore/heap/Heap.h</a></li>
<li><a href="#trunkSourceJavaScriptCoreinspectoragentsInspectorRuntimeAgentcpp">trunk/Source/JavaScriptCore/inspector/agents/InspectorRuntimeAgent.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeExecutablecpp">trunk/Source/JavaScriptCore/runtime/Executable.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeExecutableh">trunk/Source/JavaScriptCore/runtime/Executable.h</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeVMcpp">trunk/Source/JavaScriptCore/runtime/VM.cpp</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/ChangeLog 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -1,3 +1,17 @@
</span><ins>+2015-08-20 Commit Queue <commit-queue@webkit.org>
+
+ Unreviewed, rolling out r188675.
+ https://bugs.webkit.org/show_bug.cgi?id=148244
+
+ "caused a 17% Mac PLT regression" (Requested by ggaren on
+ #webkit).
+
+ Reverted changeset:
+
+ "clearCode() should clear code"
+ https://bugs.webkit.org/show_bug.cgi?id=148203
+ http://trac.webkit.org/changeset/188675
+
</ins><span class="cx"> 2015-08-11 Yusuke Suzuki <utatane.tea@gmail.com>
</span><span class="cx">
</span><span class="cx"> Introduce put_by_id like IC into put_by_val when the given name is String or Symbol
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecodeUnlinkedFunctionExecutableh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecode/UnlinkedFunctionExecutable.h (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecode/UnlinkedFunctionExecutable.h 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/bytecode/UnlinkedFunctionExecutable.h 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -102,7 +102,7 @@
</span><span class="cx">
</span><span class="cx"> FunctionExecutable* link(VM&, const SourceCode&, int overrideLineNumber = -1);
</span><span class="cx">
</span><del>- void clearCode()
</del><ins>+ void clearCodeForRecompilation()
</ins><span class="cx"> {
</span><span class="cx"> m_codeBlockForCall.clear();
</span><span class="cx"> m_codeBlockForConstruct.clear();
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoredebuggerDebuggercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/debugger/Debugger.cpp (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/debugger/Debugger.cpp 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/debugger/Debugger.cpp 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -88,6 +88,7 @@
</span><span class="cx">
</span><span class="cx"> ExecState* exec = function->scope()->globalObject()->JSGlobalObject::globalExec();
</span><span class="cx"> executable->clearCode();
</span><ins>+ executable->clearUnlinkedCodeForRecompilation();
</ins><span class="cx"> if (m_debugger == function->scope()->globalObject()->debugger())
</span><span class="cx"> m_sourceProviders.add(executable->source().provider(), exec);
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreheapHeapcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/heap/Heap.cpp (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/heap/Heap.cpp 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/heap/Heap.cpp 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -936,6 +936,15 @@
</span><span class="cx"> m_codeBlocks.deleteUnmarkedAndUnreferenced(FullCollection);
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+void Heap::deleteAllUnlinkedFunctionCode()
+{
+ for (ExecutableBase* current : m_compiledCode) {
+ if (!current->isFunctionExecutable())
+ continue;
+ static_cast<FunctionExecutable*>(current)->clearUnlinkedCodeForRecompilation();
+ }
+}
+
</ins><span class="cx"> void Heap::clearUnmarkedExecutables()
</span><span class="cx"> {
</span><span class="cx"> GCPHASE(ClearUnmarkedExecutables);
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreheapHeaph"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/heap/Heap.h (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/heap/Heap.h 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/heap/Heap.h 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -209,6 +209,7 @@
</span><span class="cx"> size_t sizeAfterLastFullCollection() const { return m_sizeAfterLastFullCollect; }
</span><span class="cx">
</span><span class="cx"> JS_EXPORT_PRIVATE void deleteAllCompiledCode();
</span><ins>+ void deleteAllUnlinkedFunctionCode();
</ins><span class="cx">
</span><span class="cx"> void didAllocate(size_t);
</span><span class="cx"> void didAbandon(size_t);
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreinspectoragentsInspectorRuntimeAgentcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/inspector/agents/InspectorRuntimeAgent.cpp (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/inspector/agents/InspectorRuntimeAgent.cpp 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/inspector/agents/InspectorRuntimeAgent.cpp 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -316,6 +316,7 @@
</span><span class="cx">
</span><span class="cx"> FunctionExecutable* executable = jsCast<FunctionExecutable*>(cell);
</span><span class="cx"> executable->clearCode();
</span><ins>+ executable->clearUnlinkedCodeForRecompilation();
</ins><span class="cx"> }
</span><span class="cx"> inline IterationStatus operator()(JSCell* cell)
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeExecutablecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/Executable.cpp (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/Executable.cpp 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/runtime/Executable.cpp 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -557,9 +557,13 @@
</span><span class="cx"> visitor.append(&thisObject->m_singletonFunction);
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+void FunctionExecutable::clearUnlinkedCodeForRecompilation()
+{
+ m_unlinkedExecutable->clearCodeForRecompilation();
+}
+
</ins><span class="cx"> void FunctionExecutable::clearCode()
</span><span class="cx"> {
</span><del>- m_unlinkedExecutable->clearCode();
</del><span class="cx"> m_codeBlockForCall = nullptr;
</span><span class="cx"> m_codeBlockForConstruct = nullptr;
</span><span class="cx"> Base::clearCode();
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeExecutableh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/Executable.h (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/Executable.h 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/runtime/Executable.h 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -640,6 +640,7 @@
</span><span class="cx"> JSString* nameValue() const { return m_unlinkedExecutable->nameValue(); }
</span><span class="cx"> size_t parameterCount() const { return m_unlinkedExecutable->parameterCount(); } // Excluding 'this'!
</span><span class="cx">
</span><ins>+ void clearUnlinkedCodeForRecompilation();
</ins><span class="cx"> static void visitChildren(JSCell*, SlotVisitor&);
</span><span class="cx"> static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeVMcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/VM.cpp (188698 => 188699)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/VM.cpp 2015-08-20 20:53:26 UTC (rev 188698)
+++ trunk/Source/JavaScriptCore/runtime/VM.cpp 2015-08-20 21:09:19 UTC (rev 188699)
</span><span class="lines">@@ -487,6 +487,7 @@
</span><span class="cx"> m_codeCache->clear();
</span><span class="cx"> m_regExpCache->deleteAllCode();
</span><span class="cx"> heap.deleteAllCompiledCode();
</span><ins>+ heap.deleteAllUnlinkedFunctionCode();
</ins><span class="cx"> heap.reportAbandonedObjectGraph();
</span><span class="cx"> }
</span><span class="cx">
</span></span></pre>
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