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29 #include "CompilationResult.h"
30 #include "DFGCompilationKey.h"
31 #include "DFGCompilationMode.h"
32 #include "DFGDesiredIdentifiers.h"
33 #include "DFGDesiredTransitions.h"
34 #include "DFGDesiredWatchpoints.h"
35 #include "DFGDesiredWeakReferences.h"
36 #include "DFGFinalizer.h"
37 #include "DeferredCompilationCallback.h"
39 #include "ProfilerCompilation.h"
40 #include <wtf/HashMap.h>
41 #include <wtf/ThreadSafeRefCounted.h>
42 #include <wtf/text/CString.h>
56 struct Plan : public ThreadSafeRefCounted<Plan> {
58 CodeBlock* codeBlockToCompile, CodeBlock* profiledDFGCodeBlock,
59 CompilationMode, unsigned osrEntryBytecodeIndex,
60 const Operands<JSValue>& mustHandleValues);
63 void compileInThread(LongLivedState&, ThreadData*);
65 CompilationResult finalizeWithoutNotifyingCallback();
66 void finalizeAndNotifyCallback();
68 void notifyCompiling();
69 void notifyCompiled();
74 void rememberCodeBlocks();
75 void checkLivenessAndVisitChildren(SlotVisitor&);
76 bool isKnownToBeLiveDuringGC();
79 bool canTierUpAndOSREnter() const { return !tierUpAndOSREnterBytecodes.isEmpty(); }
81 // Warning: pretty much all of the pointer fields in this object get nulled by cancel(). So, if
82 // you're writing code that is callable on the cancel path, be sure to null check everything!
86 // These can be raw pointers because we visit them during every GC in checkLivenessAndVisitChildren.
88 CodeBlock* profiledDFGCodeBlock;
91 const unsigned osrEntryBytecodeIndex;
92 Operands<JSValue> mustHandleValues;
94 ThreadData* threadData;
96 RefPtr<Profiler::Compilation> compilation;
98 std::unique_ptr<Finalizer> finalizer;
100 RefPtr<InlineCallFrameSet> inlineCallFrames;
101 DesiredWatchpoints watchpoints;
102 DesiredIdentifiers identifiers;
103 DesiredWeakReferences weakReferences;
104 DesiredTransitions transitions;
106 bool willTryToTierUp { false };
108 HashMap<unsigned, Vector<unsigned>> tierUpInLoopHierarchy;
109 Vector<unsigned> tierUpAndOSREnterBytecodes;
111 enum Stage { Preparing, Compiling, Compiled, Ready, Cancelled };
114 RefPtr<DeferredCompilationCallback> callback;
117 bool computeCompileTimes() const;
118 bool reportCompileTimes() const;
120 enum CompilationPath { FailPath, DFGPath, FTLPath, CancelPath };
121 CompilationPath compileInThreadImpl(LongLivedState&);
124 void reallyAdd(CommonData*);
126 double m_timeBeforeFTL;
129 #endif // ENABLE(DFG_JIT)
131 } } // namespace JSC::DFG