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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 "RegisterAtOffsetList.h"
#if ENABLE(JIT)
#include <wtf/ListDump.h>
namespace JSC {
RegisterAtOffsetList::RegisterAtOffsetList() { }
RegisterAtOffsetList::RegisterAtOffsetList(RegisterSet registerSet, OffsetBaseType offsetBaseType)
{
size_t numberOfRegisters = registerSet.numberOfSetRegisters();
ptrdiff_t offset = 0;
if (offsetBaseType == FramePointerBased)
offset = -(static_cast<ptrdiff_t>(numberOfRegisters) * sizeof(void*));
for (Reg reg = Reg::first(); reg <= Reg::last(); reg = reg.next()) {
if (registerSet.get(reg)) {
append(RegisterAtOffset(reg, offset));
offset += sizeof(void*);
}
}
sort();
}
void RegisterAtOffsetList::sort()
{
std::sort(m_registers.begin(), m_registers.end());
}
void RegisterAtOffsetList::dump(PrintStream& out) const
{
out.print(listDump(m_registers));
}
RegisterAtOffset* RegisterAtOffsetList::find(Reg reg) const
{
return tryBinarySearch<RegisterAtOffset, Reg>(m_registers, m_registers.size(), reg, RegisterAtOffset::getReg);
}
unsigned RegisterAtOffsetList::indexOf(Reg reg) const
{
if (RegisterAtOffset* pointer = find(reg))
return pointer - m_registers.begin();
return UINT_MAX;
}
} // namespace JSC
#endif // ENABLE(JIT)
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