Source/JavaScriptCore/dfg/DFGValidateUnlinked.cpp

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#include "config.h"
#include "DFGValidateUnlinked.h"

#if ENABLE(DFG_JIT)

#include "DFGGraph.h"
#include "DFGPhase.h"
#include "DFGPhiChildren.h"
#include "JSCJSValueInlines.h"

namespace JSC::DFG {

class ValidateUnlinked final : public Phase {
    static constexpr bool verbose = false;

public:
    ValidateUnlinked(Graph& graph)
        : Phase(graph, "uDFG validation")
    {
    }

    bool run();
    bool validateNode(Node*);

private:
};

bool ValidateUnlinked::run()
{
    for (BasicBlock* block : m_graph.blocksInPreOrder()) {
        for (Node* node : *block) {
            if (!validateNode(node))
                return false;
        }
    }
    return true;
}

bool ValidateUnlinked::validateNode(Node* node)
{
    JSGlobalObject* globalObject = m_graph.globalObjectFor(node->origin.semantic);
    if (globalObject != m_graph.m_codeBlock->globalObject()) {
        if (UNLIKELY(Options::dumpUnlinkedDFGValidation())) {
            m_graph.logAssertionFailure(node, __FILE__, __LINE__, WTF_PRETTY_FUNCTION, "Bad GlobalObject");
            dataLogLn(RawPointer(globalObject), " != ", RawPointer(m_graph.m_codeBlock->globalObject()));
        }
        return false;
    }
    return true;
}


CapabilityLevel canCompileUnlinked(Graph& graph)
{
    ValidateUnlinked phase(graph);
    if (!phase.run())
        return CapabilityLevel::CannotCompile;
    return CapabilityLevel::CanCompileAndInline;
}

} // namespace JSC::DFG

#endif // ENABLE(DFG_JIT)