/* * Copyright (C) 2015-2017 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. */ #pragma once #if ENABLE(B3_JIT) #include "B3Value.h" #include "CCallHelpers.h" namespace JSC { namespace B3 { class WasmBoundsCheckValue : public Value { public: static bool accepts(Kind kind) { switch (kind.opcode()) { case WasmBoundsCheck: return true; default: return false; } } ~WasmBoundsCheckValue(); enum class Type { Pinned, Maximum, }; union Bounds { GPRReg pinnedSize; size_t maximum; }; unsigned offset() const { return m_offset; } Type boundsType() const { return m_boundsType; } Bounds bounds() const { return m_bounds; } protected: void dumpMeta(CommaPrinter&, PrintStream&) const override; Value* cloneImpl() const override; private: friend class Procedure; JS_EXPORT_PRIVATE WasmBoundsCheckValue(Origin, GPRReg pinnedGPR, Value* ptr, unsigned offset); JS_EXPORT_PRIVATE WasmBoundsCheckValue(Origin, Value* ptr, unsigned offset, size_t maximum); unsigned m_offset; Type m_boundsType; Bounds m_bounds; }; } } // namespace JSC::B3 #endif // ENABLE(B3_JIT)