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fpizlo@apple.com authored
https://bugs.webkit.org/show_bug.cgi?id=89802 Source/JavaScriptCore: Reviewed by Gavin Barraclough. This patch causes both LLInt and Baseline JIT code to take the OSR slow path several times before actually doing OSR. If we take the OSR slow path before the execution count threshold is reached, then we just call CodeBlock::updateAllPredictions() to compute the current latest least-upper-bound SpecType of all values seen in each ValueProfile. * bytecode/CodeBlock.cpp: (JSC::CodeBlock::stronglyVisitStrongReferences): (JSC::CodeBlock::updateAllPredictionsAndCountLiveness): (JSC): (JSC::CodeBlock::updateAllPredictions): (JSC::CodeBlock::shouldOptimizeNow): * bytecode/CodeBlock.h: (JSC::CodeBlock::llintExecuteCounter): (JSC::CodeBlock::jitExecuteCounter): (CodeBlock): (JSC::CodeBlock::updateAllPredictions): * bytecode/ExecutionCounter.cpp: (JSC::ExecutionCounter::setThreshold): (JSC::ExecutionCounter::status): (JSC): * bytecode/ExecutionCounter.h: (JSC::ExecutionCounter::count): (ExecutionCounter): * dfg/DFGAbstractState.cpp: (JSC::DFG::AbstractState::execute): * dfg/DFGOperations.cpp: * dfg/DFGSpeculativeJIT.cpp: (JSC::DFG::SpeculativeJIT::compile): * jit/JITStubs.cpp: (JSC::DEFINE_STUB_FUNCTION): * llint/LLIntSlowPaths.cpp: (JSC::LLInt::jitCompileAndSetHeuristics): (JSC::LLInt::entryOSR): (JSC::LLInt::LLINT_SLOW_PATH_DECL): * runtime/JSGlobalObject.cpp: (JSC::JSGlobalObject::JSGlobalObject): (JSC): * runtime/JSGlobalObject.h: (JSGlobalObject): (JSC::JSGlobalObject::weakRandomInteger): * runtime/Options.cpp: (Options): (JSC::Options::initializeOptions): * runtime/Options.h: (Options): * runtime/WeakRandom.h: (WeakRandom): (JSC::WeakRandom::seedUnsafe): LayoutTests: Reviewed by Gavin Barraclough. * fast/js/dfg-store-unexpected-value-into-argument-and-osr-exit-expected.txt: Added. * fast/js/dfg-store-unexpected-value-into-argument-and-osr-exit.html: Added. * fast/js/script-tests/dfg-store-unexpected-value-into-argument-and-osr-exit.js: Added. (foo): git-svn-id: http://svn.webkit.org/repository/webkit/trunk@121215 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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