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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/197196">197196</a></dd>
<dt>Author</dt> <dd>keith_miller@apple.com</dd>
<dt>Date</dt> <dd>2016-02-26 13:43:09 -0800 (Fri, 26 Feb 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Folding of OverridesHasInstance DFG nodes shoud happen in constant folding not fixup
https://bugs.webkit.org/show_bug.cgi?id=154743
Reviewed by Mark Lam.
* dfg/DFGConstantFoldingPhase.cpp:
(JSC::DFG::ConstantFoldingPhase::foldConstants):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoredfgDFGConstantFoldingPhasecpp">trunk/Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoredfgDFGFixupPhasecpp">trunk/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (197195 => 197196)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2016-02-26 21:32:22 UTC (rev 197195)
+++ trunk/Source/JavaScriptCore/ChangeLog 2016-02-26 21:43:09 UTC (rev 197196)
</span><span class="lines">@@ -1,5 +1,17 @@
</span><span class="cx"> 2016-02-26 Keith Miller <keith_miller@apple.com>
</span><span class="cx">
</span><ins>+ Folding of OverridesHasInstance DFG nodes shoud happen in constant folding not fixup
+ https://bugs.webkit.org/show_bug.cgi?id=154743
+
+ Reviewed by Mark Lam.
+
+ * dfg/DFGConstantFoldingPhase.cpp:
+ (JSC::DFG::ConstantFoldingPhase::foldConstants):
+ * dfg/DFGFixupPhase.cpp:
+ (JSC::DFG::FixupPhase::fixupNode):
+
+2016-02-26 Keith Miller <keith_miller@apple.com>
+
</ins><span class="cx"> Native Typed Array functions should use Symbol.species
</span><span class="cx"> https://bugs.webkit.org/show_bug.cgi?id=154569
</span><span class="cx">
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoredfgDFGConstantFoldingPhasecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp (197195 => 197196)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp 2016-02-26 21:32:22 UTC (rev 197195)
+++ trunk/Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp 2016-02-26 21:43:09 UTC (rev 197196)
</span><span class="lines">@@ -553,6 +553,24 @@
</span><span class="cx"> break;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+ case OverridesHasInstance: {
+ if (!node->child2().node()->isCellConstant())
+ break;
+
+ if (node->child2().node()->asCell() != m_graph.globalObjectFor(node->origin.semantic)->functionProtoHasInstanceSymbolFunction()) {
+ m_graph.convertToConstant(node, jsBoolean(true));
+ changed = true;
+
+ } else if (!m_graph.hasExitSite(node->origin.semantic, BadTypeInfoFlags)) {
+ // We optimistically assume that we will not see a function that has a custom instanceof operation as they should be rare.
+ m_insertionSet.insertNode(indexInBlock, SpecNone, CheckTypeInfoFlags, node->origin, OpInfo(ImplementsDefaultHasInstance), Edge(node->child1().node(), CellUse));
+ m_graph.convertToConstant(node, jsBoolean(false));
+ changed = true;
+ }
+
+ break;
+ }
+
</ins><span class="cx"> case Check: {
</span><span class="cx"> alreadyHandled = true;
</span><span class="cx"> m_interpreter.execute(indexInBlock);
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoredfgDFGFixupPhasecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp (197195 => 197196)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp 2016-02-26 21:32:22 UTC (rev 197195)
+++ trunk/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp 2016-02-26 21:43:09 UTC (rev 197196)
</span><span class="lines">@@ -1093,26 +1093,7 @@
</span><span class="cx"> break;
</span><span class="cx"> }
</span><span class="cx">
</span><del>- case OverridesHasInstance: {
- if (node->child2().node()->isCellConstant()) {
- if (node->child2().node()->asCell() != m_graph.globalObjectFor(node->origin.semantic)->functionProtoHasInstanceSymbolFunction()) {
-
- m_graph.convertToConstant(node, jsBoolean(true));
- break;
- }
-
- if (!m_graph.hasExitSite(node->origin.semantic, BadTypeInfoFlags)) {
- // Here we optimistically assume that we will not see an bound/C-API function here.
- m_insertionSet.insertNode(m_indexInBlock, SpecNone, CheckTypeInfoFlags, node->origin, OpInfo(ImplementsDefaultHasInstance), Edge(node->child1().node(), CellUse));
- m_graph.convertToConstant(node, jsBoolean(false));
- break;
- }
- }
-
- fixEdge<CellUse>(node->child1());
- break;
- }
-
</del><ins>+ case OverridesHasInstance:
</ins><span class="cx"> case CheckStructure:
</span><span class="cx"> case CheckCell:
</span><span class="cx"> case CreateThis:
</span></span></pre>
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