mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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64 lines
2.5 KiB
C++
64 lines
2.5 KiB
C++
/*
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* Copyright (C) 2015-2018 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "FTLOSRExitHandle.h"
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#if ENABLE(FTL_JIT)
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#include "FTLOSRExit.h"
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#include "FTLState.h"
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#include "FTLThunks.h"
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#include "LinkBuffer.h"
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#include "ProfilerCompilation.h"
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namespace JSC { namespace FTL {
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void OSRExitHandle::emitExitThunk(State& state, CCallHelpers& jit)
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{
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Profiler::Compilation* compilation = state.graph.compilation();
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CCallHelpers::Label myLabel = jit.label();
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label = myLabel;
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jit.pushToSaveImmediateWithoutTouchingRegisters(CCallHelpers::TrustedImm32(index));
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CCallHelpers::PatchableJump jump = jit.patchableJump();
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RefPtr<OSRExitHandle> self = this;
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VM& vm = state.vm();
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jit.addLinkTask(
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[self, jump, myLabel, compilation, &vm] (LinkBuffer& linkBuffer) {
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self->exit.m_patchableJump = CodeLocationJump<JSInternalPtrTag>(linkBuffer.locationOf<JSInternalPtrTag>(jump));
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linkBuffer.link(
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jump.m_jump,
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CodeLocationLabel<JITThunkPtrTag>(vm.getCTIStub(osrExitGenerationThunkGenerator).code()));
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if (compilation)
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compilation->addOSRExitSite({ linkBuffer.locationOf<JSInternalPtrTag>(myLabel) });
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});
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}
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} } // namespace JSC::FTL
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#endif // ENABLE(FTL_JIT)
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