WebKit/Source/JavaScriptCore/ftl/FTLOSRExitHandle.cpp at main · WebKit/WebKit · GitHub

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#include "config.h"

#include "FTLOSRExitHandle.h"

#if ENABLE(FTL_JIT)

#include "FTLOSRExit.h"

#include "FTLState.h"

#include "FTLThunks.h"

#include "LinkBuffer.h"

#include "ProfilerCompilation.h"

namespace JSC { namespace FTL {

void OSRExitHandle::emitExitThunk(State& state, CCallHelpers& jit)

{

Profiler::Compilation* compilation = state.graph.compilation();

CCallHelpers::Label myLabel = jit.label();

label = myLabel;

jit.pushToSaveImmediateWithoutTouchingRegisters(CCallHelpers::TrustedImm32(m_index));

CCallHelpers::PatchableJump jump = jit.patchableJump();

jump.linkThunk(CodeLocationLabel<JITThunkPtrTag>(state.vm().getCTIStub(osrExitGenerationThunkGenerator).code()), &jit);

RefPtr<OSRExitHandle> self = this;

jit.addLinkTask(

[self, jump, myLabel, compilation] (LinkBuffer& linkBuffer) {

self->m_jitCode->m_osrExit[self->m_index].m_patchableJump = CodeLocationJump<JSInternalPtrTag>(linkBuffer.locationOf<JSInternalPtrTag>(jump));

if (compilation)

compilation->addOSRExitSite({ linkBuffer.locationOf<JSInternalPtrTag>(myLabel) });

});

}

} } // namespace JSC::FTL

#endif // ENABLE(FTL_JIT)

WebKit/Source/JavaScriptCore/ftl/FTLOSRExitHandle.cpp at main · WebKit/WebKit · GitHub

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