mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-17 22:40:01 +00:00
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
/*
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* Copyright (C) 2016-2017 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 "B3WasmBoundsCheckValue.h"
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#include "WasmMemory.h"
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#if ENABLE(B3_JIT)
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#include "B3ValueInlines.h"
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namespace JSC { namespace B3 {
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WasmBoundsCheckValue::~WasmBoundsCheckValue()
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{
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}
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WasmBoundsCheckValue::WasmBoundsCheckValue(Origin origin, GPRReg pinnedSize, Value* ptr, unsigned offset)
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: Value(CheckedOpcode, WasmBoundsCheck, One, origin, ptr)
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, m_offset(offset)
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, m_boundsType(Type::Pinned)
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{
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m_bounds.pinnedSize = pinnedSize;
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}
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WasmBoundsCheckValue::WasmBoundsCheckValue(Origin origin, Value* ptr, unsigned offset, size_t maximum)
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: Value(CheckedOpcode, WasmBoundsCheck, One, origin, ptr)
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, m_offset(offset)
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, m_boundsType(Type::Maximum)
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{
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#if ENABLE(WEBASSEMBLY)
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size_t redzoneLimit = static_cast<uint64_t>(std::numeric_limits<uint32_t>::max()) + Wasm::Memory::fastMappedRedzoneBytes();
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ASSERT_UNUSED(redzoneLimit, maximum <= redzoneLimit);
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#endif
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m_bounds.maximum = maximum;
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}
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void WasmBoundsCheckValue::dumpMeta(CommaPrinter& comma, PrintStream& out) const
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{
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switch (m_boundsType) {
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case Type::Pinned:
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out.print(comma, "offset = ", m_offset, comma, "pinnedSize = ", m_bounds.pinnedSize);
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break;
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case Type::Maximum:
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out.print(comma, "offset = ", m_offset, comma, "maximum = ", m_bounds.maximum);
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break;
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}
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}
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} } // namespace JSC::B3
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#endif // ENABLE(B3_JIT)
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