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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/163241">163241</a></dd>
<dt>Author</dt> <dd>msaboff@apple.com</dd>
<dt>Date</dt> <dd>2014-02-01 07:30:41 -0800 (Sat, 01 Feb 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>REGRESSION (<a href="http://trac.webkit.org/projects/webkit/changeset/163027">r163027</a>?): CrashTracer: [USER] com.apple.WebKit.WebContent.Development at com.apple.JavaScriptCore: JSC::ArrayProfile::computeUpdatedPrediction + 4
https://bugs.webkit.org/show_bug.cgi?id=128037
Reviewed by Mark Lam.
op_call_varargs ops now needs an ArrayProfile since DFG inlines these since
change set <a href="http://trac.webkit.org/projects/webkit/changeset/162739">r162739</a>.
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::CodeBlock):
* bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::emitCallVarargs):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecodeCodeBlockcpp">trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecompilerBytecodeGeneratorcpp">trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (163240 => 163241)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2014-02-01 15:15:56 UTC (rev 163240)
+++ trunk/Source/JavaScriptCore/ChangeLog 2014-02-01 15:30:41 UTC (rev 163241)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2014-02-01 Michael Saboff <msaboff@apple.com>
+
+ REGRESSION (r163027?): CrashTracer: [USER] com.apple.WebKit.WebContent.Development at com.apple.JavaScriptCore: JSC::ArrayProfile::computeUpdatedPrediction + 4
+ https://bugs.webkit.org/show_bug.cgi?id=128037
+
+ Reviewed by Mark Lam.
+
+ op_call_varargs ops now needs an ArrayProfile since DFG inlines these since
+ change set r162739.
+
+ * bytecode/CodeBlock.cpp:
+ (JSC::CodeBlock::CodeBlock):
+ * bytecompiler/BytecodeGenerator.cpp:
+ (JSC::BytecodeGenerator::emitCallVarargs):
+
</ins><span class="cx"> 2014-01-31 Mark Lam <mark.lam@apple.com>
</span><span class="cx">
</span><span class="cx"> Gardening: fix build breakage.
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecodeCodeBlockcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp (163240 => 163241)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp 2014-02-01 15:15:56 UTC (rev 163240)
+++ trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp 2014-02-01 15:30:41 UTC (rev 163241)
</span><span class="lines">@@ -1689,6 +1689,7 @@
</span><span class="cx"> instructions[i + j].u.operand = pc[j].u.operand;
</span><span class="cx"> }
</span><span class="cx"> switch (pc[0].u.opcode) {
</span><ins>+ case op_call_varargs:
</ins><span class="cx"> case op_get_by_val:
</span><span class="cx"> case op_get_argument_by_val: {
</span><span class="cx"> int arrayProfileIndex = pc[opLength - 2].u.operand;
</span><span class="lines">@@ -1697,8 +1698,7 @@
</span><span class="cx"> instructions[i + opLength - 2] = &m_arrayProfiles[arrayProfileIndex];
</span><span class="cx"> FALLTHROUGH;
</span><span class="cx"> }
</span><del>- case op_get_by_id:
- case op_call_varargs: {
</del><ins>+ case op_get_by_id: {
</ins><span class="cx"> ValueProfile* profile = &m_valueProfiles[pc[opLength - 1].u.operand];
</span><span class="cx"> ASSERT(profile->m_bytecodeOffset == -1);
</span><span class="cx"> profile->m_bytecodeOffset = i;
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecompilerBytecodeGeneratorcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp (163240 => 163241)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp 2014-02-01 15:15:56 UTC (rev 163240)
+++ trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp 2014-02-01 15:30:41 UTC (rev 163241)
</span><span class="lines">@@ -1777,6 +1777,7 @@
</span><span class="cx"> emitExpressionInfo(divot, divotStart, divotEnd);
</span><span class="cx">
</span><span class="cx"> // Emit call.
</span><ins>+ UnlinkedArrayProfile arrayProfile = newArrayProfile();
</ins><span class="cx"> UnlinkedValueProfile profile = emitProfiledOpcode(op_call_varargs);
</span><span class="cx"> ASSERT(dst != ignoredResult());
</span><span class="cx"> instructions().append(dst->index());
</span><span class="lines">@@ -1784,7 +1785,7 @@
</span><span class="cx"> instructions().append(thisRegister->index());
</span><span class="cx"> instructions().append(arguments->index());
</span><span class="cx"> instructions().append(firstFreeRegister->index());
</span><del>- instructions().append(0); // Pad to make it as big as an op_call.
</del><ins>+ instructions().append(arrayProfile);
</ins><span class="cx"> instructions().append(profile);
</span><span class="cx"> if (m_shouldEmitProfileHooks) {
</span><span class="cx"> emitOpcode(op_profile_did_call);
</span></span></pre>
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