/* * Copyright (C) 2018 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 "ICStatusUtils.h" #include "CodeBlock.h" #include "ExitFlag.h" #include "UnlinkedCodeBlock.h" namespace JSC { ExitFlag hasBadCacheExitSite(CodeBlock* profiledBlock, unsigned bytecodeIndex) { #if ENABLE(DFG_JIT) UnlinkedCodeBlock* unlinkedCodeBlock = profiledBlock->unlinkedCodeBlock(); ConcurrentJSLocker locker(unlinkedCodeBlock->m_lock); auto exitFlag = [&] (ExitKind exitKind) -> ExitFlag { auto withInlined = [&] (ExitingInlineKind inlineKind) -> ExitFlag { return ExitFlag(unlinkedCodeBlock->hasExitSite(locker, DFG::FrequentExitSite(bytecodeIndex, exitKind, ExitFromAnything, inlineKind)), inlineKind); }; return withInlined(ExitFromNotInlined) | withInlined(ExitFromInlined); }; return exitFlag(BadCache) | exitFlag(BadConstantCache) | exitFlag(BadType); #else UNUSED_PARAM(profiledBlock); UNUSED_PARAM(bytecodeIndex); return ExitFlag(); #endif } } // namespace JSC