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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 "CallFrameShuffleData.h"
#if ENABLE(JIT)
#include "CodeBlock.h"
#include "RegisterAtOffsetList.h"
namespace JSC {
#if USE(JSVALUE64)
void CallFrameShuffleData::setupCalleeSaveRegisters(CodeBlock* codeBlock)
{
RegisterSet calleeSaveRegisters { RegisterSet::vmCalleeSaveRegisters() };
const RegisterAtOffsetList* registerSaveLocations = codeBlock->calleeSaveRegisters();
for (size_t i = 0; i < registerSaveLocations->size(); ++i) {
RegisterAtOffset entry { registerSaveLocations->at(i) };
if (!calleeSaveRegisters.get(entry.reg()))
continue;
VirtualRegister saveSlot { entry.offsetAsIndex() };
registers[entry.reg()]
= ValueRecovery::displacedInJSStack(saveSlot, DataFormatJS);
}
for (Reg reg = Reg::first(); reg <= Reg::last(); reg = reg.next()) {
if (!calleeSaveRegisters.get(reg))
continue;
if (registers[reg])
continue;
registers[reg] = ValueRecovery::inRegister(reg, DataFormatJS);
}
}
#endif // USE(JSVALUE64)
} // namespace JSC
#endif // ENABLE(JIT)
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