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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jit_arm_MoveEmitter_arm_h
#define jit_arm_MoveEmitter_arm_h
#include "jit/MoveResolver.h"
#include "jit/IonMacroAssembler.h"
namespace js {
namespace jit {
class CodeGenerator;
class MoveEmitterARM
{
typedef MoveResolver::Move Move;
typedef MoveResolver::MoveOperand MoveOperand;
bool inCycle_;
MacroAssemblerARMCompat &masm;
// Original stack push value.
uint32_t pushedAtStart_;
// These store stack offsets to spill locations, snapshotting
// codegen->framePushed_ at the time they were allocated. They are -1 if no
// stack space has been allocated for that particular spill.
int32_t pushedAtCycle_;
int32_t pushedAtSpill_;
int32_t pushedAtDoubleSpill_;
// These are registers that are available for temporary use. They may be
// assigned InvalidReg. If no corresponding spill space has been assigned,
// then these registers do not need to be spilled.
Register spilledReg_;
FloatRegister spilledFloatReg_;
void assertDone();
Register tempReg();
FloatRegister tempFloatReg();
Operand cycleSlot() const;
Operand spillSlot() const;
Operand doubleSpillSlot() const;
Operand toOperand(const MoveOperand &operand, bool isFloat) const;
void emitMove(const MoveOperand &from, const MoveOperand &to);
void emitDoubleMove(const MoveOperand &from, const MoveOperand &to);
void breakCycle(const MoveOperand &from, const MoveOperand &to, Move::Kind kind);
void completeCycle(const MoveOperand &from, const MoveOperand &to, Move::Kind kind);
void emit(const Move &move);
public:
MoveEmitterARM(MacroAssemblerARMCompat &masm);
~MoveEmitterARM();
void emit(const MoveResolver &moves);
void finish();
};
typedef MoveEmitterARM MoveEmitter;
} // namespace jit
} // namespace js
#endif /* jit_arm_MoveEmitter_arm_h */