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https://webkit.org/b/119860oliver@apple.com authored
Reviewed by Filip Pizlo. Source/JavaScriptCore: Add an "Unreachable" NodeType, and then rearrange op_throw and op_throw_reference_error to plant Throw or ThrowReferenceError followed by a flush and then the Unreachable node. We need this so that Throw and ThrowReferenceError no longer need to be treated as terminals and the subsequent flush keeps the activation (and other registers) live. * dfg/DFGAbstractInterpreterInlines.h: (JSC::DFG::::executeEffects): * dfg/DFGByteCodeParser.cpp: (JSC::DFG::ByteCodeParser::parseBlock): * dfg/DFGClobberize.h: (JSC::DFG::clobberize): * dfg/DFGFixupPhase.cpp: (JSC::DFG::FixupPhase::fixupNode): * dfg/DFGNode.h: (JSC::DFG::Node::isTerminal): * dfg/DFGNodeType.h: * dfg/DFGPredictionPropagationPhase.cpp: (JSC::DFG::PredictionPropagationPhase::propagate): * dfg/DFGSafeToExecute.h: (JSC::DFG::safeToExecute): * dfg/DFGSpeculativeJIT32_64.cpp: (JSC::DFG::SpeculativeJIT::compile): * dfg/DFGSpeculativeJIT64.cpp: (JSC::DFG::SpeculativeJIT::compile): LayoutTests: Add a test * fast/js/dfg-activation-register-overwritten-in-throw-expected.txt: Added. * fast/js/dfg-activation-register-overwritten-in-throw.html: Added. * fast/js/script-tests/dfg-activation-register-overwritten-in-throw.js: Added. (g): git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154290 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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