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/*
* Copyright (C) 2016-2017 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.
*/
#include "config.h"
#include "B3WasmBoundsCheckValue.h"
#include "WasmMemory.h"
#if ENABLE(B3_JIT)
#include "B3ValueInlines.h"
namespace JSC { namespace B3 {
WasmBoundsCheckValue::~WasmBoundsCheckValue()
{
}
WasmBoundsCheckValue::WasmBoundsCheckValue(Origin origin, GPRReg pinnedSize, Value* ptr, unsigned offset)
: Value(CheckedOpcode, WasmBoundsCheck, One, origin, ptr)
, m_offset(offset)
, m_boundsType(Type::Pinned)
{
m_bounds.pinnedSize = pinnedSize;
}
WasmBoundsCheckValue::WasmBoundsCheckValue(Origin origin, Value* ptr, unsigned offset, size_t maximum)
: Value(CheckedOpcode, WasmBoundsCheck, One, origin, ptr)
, m_offset(offset)
, m_boundsType(Type::Maximum)
{
size_t redzoneLimit = static_cast<uint64_t>(std::numeric_limits<uint32_t>::max()) + Wasm::Memory::fastMappedRedzoneBytes();
ASSERT_UNUSED(redzoneLimit, maximum <= redzoneLimit);
m_bounds.maximum = maximum;
}
void WasmBoundsCheckValue::dumpMeta(CommaPrinter& comma, PrintStream& out) const
{
switch (m_boundsType) {
case Type::Pinned:
out.print(comma, "offset = ", m_offset, comma, "pinnedSize = ", m_bounds.pinnedSize);
break;
case Type::Maximum:
out.print(comma, "offset = ", m_offset, comma, "maximum = ", m_bounds.maximum);
break;
}
}
} } // namespace JSC::B3
#endif // ENABLE(B3_JIT)
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