Adds fromCharCode intrinsic support.
https://bugs.webkit.org/show_bug.cgi?id=104807
Patch by Vahag Vardanyan <vaag@ispras.ru> on 2013-04-08
Reviewed by Oliver Hunt.
Switch to using fromCharCode intrinsic instead of call operation in some cases.
* dfg/DFGAbstractState.cpp:
(JSC::DFG::AbstractState::executeEffects):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::handleIntrinsic):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
* dfg/DFGNodeType.h:
(DFG):
* dfg/DFGOperations.cpp:
* dfg/DFGOperations.h:
* dfg/DFGPredictionPropagationPhase.cpp:
(JSC::DFG::PredictionPropagationPhase::propagate):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileFromCharCode):
(DFG):
* dfg/DFGSpeculativeJIT.h:
(JSC::DFG::SpeculativeJIT::callOperation):
(SpeculativeJIT):
* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* runtime/StringConstructor.cpp:
(JSC::stringFromCharCode):
(JSC):
* runtime/StringConstructor.h:
(JSC):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147985 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp b/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp
index 3a15c30..c77fe25 100644
--- a/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp
+++ b/Source/JavaScriptCore/dfg/DFGFixupPhase.cpp
@@ -356,6 +356,10 @@
break;
}
+ case StringFromCharCode:
+ setUseKindAndUnboxIfProfitable<Int32Use>(node->child1());
+ break;
+
case StringCharAt:
case StringCharCodeAt: {
// Currently we have no good way of refining these.
