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authorLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2016-04-10 09:28:39 +0000
commit32761a6cee1d0dee366b885b7b9c777e67885688 (patch)
treed6bec92bebfb216f4126356e55518842c2f476a1 /Source/JavaScriptCore/ftl/FTLLazySlowPath.cpp
parenta4e969f4965059196ca948db781e52f7cfebf19e (diff)
downloadWebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz
webkitgtk-2.4.11webkitgtk-2.4.11
Diffstat (limited to 'Source/JavaScriptCore/ftl/FTLLazySlowPath.cpp')
-rw-r--r--Source/JavaScriptCore/ftl/FTLLazySlowPath.cpp79
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diff --git a/Source/JavaScriptCore/ftl/FTLLazySlowPath.cpp b/Source/JavaScriptCore/ftl/FTLLazySlowPath.cpp
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--- a/Source/JavaScriptCore/ftl/FTLLazySlowPath.cpp
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-/*
- * Copyright (C) 2015 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "FTLLazySlowPath.h"
-
-#if ENABLE(FTL_JIT)
-
-#include "FTLSlowPathCall.h"
-#include "LinkBuffer.h"
-
-namespace JSC { namespace FTL {
-
-LazySlowPath::LazySlowPath(
- CodeLocationJump patchableJump, CodeLocationLabel done,
- CodeLocationLabel exceptionTarget,
- const RegisterSet& usedRegisters, CallSiteIndex callSiteIndex, RefPtr<Generator> generator
- )
- : m_patchableJump(patchableJump)
- , m_done(done)
- , m_exceptionTarget(exceptionTarget)
- , m_usedRegisters(usedRegisters)
- , m_callSiteIndex(callSiteIndex)
- , m_generator(generator)
-{
-}
-
-LazySlowPath::~LazySlowPath()
-{
-}
-
-void LazySlowPath::generate(CodeBlock* codeBlock)
-{
- RELEASE_ASSERT(!m_stub);
-
- VM& vm = *codeBlock->vm();
-
- CCallHelpers jit(&vm, codeBlock);
- GenerationParams params;
- CCallHelpers::JumpList exceptionJumps;
- params.exceptionJumps = m_exceptionTarget ? &exceptionJumps : nullptr;
- params.lazySlowPath = this;
-
- m_generator->run(jit, params);
-
- LinkBuffer linkBuffer(vm, jit, codeBlock, JITCompilationMustSucceed);
- linkBuffer.link(params.doneJumps, m_done);
- if (m_exceptionTarget)
- linkBuffer.link(exceptionJumps, m_exceptionTarget);
- m_stub = FINALIZE_CODE_FOR(codeBlock, linkBuffer, ("Lazy slow path call stub"));
-
- MacroAssembler::repatchJump(m_patchableJump, CodeLocationLabel(m_stub.code()));
-}
-
-} } // namespace JSC::FTL
-
-#endif // ENABLE(FTL_JIT)