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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.
*/
#pragma once
#if ENABLE(JIT)
#include "CCallHelpers.h"
#include "SnippetOperand.h"
namespace JSC {
class JITDivGenerator {
public:
JITDivGenerator(SnippetOperand leftOperand, SnippetOperand rightOperand,
JSValueRegs result, JSValueRegs left, JSValueRegs right,
FPRReg leftFPR, FPRReg rightFPR, GPRReg scratchGPR, FPRReg scratchFPR,
BinaryArithProfile* arithProfile = nullptr)
: m_leftOperand(leftOperand)
, m_rightOperand(rightOperand)
, m_result(result)
, m_left(left)
, m_right(right)
, m_leftFPR(leftFPR)
, m_rightFPR(rightFPR)
, m_scratchGPR(scratchGPR)
, m_scratchFPR(scratchFPR)
, m_arithProfile(arithProfile)
{
ASSERT(!m_leftOperand.isConstInt32() || !m_rightOperand.isConstInt32());
}
void generateFastPath(CCallHelpers&);
bool didEmitFastPath() const { return m_didEmitFastPath; }
CCallHelpers::JumpList& endJumpList() { return m_endJumpList; }
CCallHelpers::JumpList& slowPathJumpList() { return m_slowPathJumpList; }
private:
void loadOperand(CCallHelpers&, SnippetOperand&, JSValueRegs opRegs, FPRReg destFPR);
SnippetOperand m_leftOperand;
SnippetOperand m_rightOperand;
JSValueRegs m_result;
JSValueRegs m_left;
JSValueRegs m_right;
FPRReg m_leftFPR;
FPRReg m_rightFPR;
GPRReg m_scratchGPR;
FPRReg m_scratchFPR;
bool m_didEmitFastPath { false };
BinaryArithProfile* m_arithProfile;
CCallHelpers::JumpList m_endJumpList;
CCallHelpers::JumpList m_slowPathJumpList;
};
} // namespace JSC
#endif // ENABLE(JIT)