1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit/arm/MoveEmitter-arm.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,64 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef jit_arm_MoveEmitter_arm_h
1.11 +#define jit_arm_MoveEmitter_arm_h
1.12 +
1.13 +#include "jit/IonMacroAssembler.h"
1.14 +#include "jit/MoveResolver.h"
1.15 +
1.16 +namespace js {
1.17 +namespace jit {
1.18 +
1.19 +class CodeGenerator;
1.20 +
1.21 +class MoveEmitterARM
1.22 +{
1.23 + bool inCycle_;
1.24 + MacroAssemblerARMCompat &masm;
1.25 +
1.26 + // Original stack push value.
1.27 + uint32_t pushedAtStart_;
1.28 +
1.29 + // These store stack offsets to spill locations, snapshotting
1.30 + // codegen->framePushed_ at the time they were allocated. They are -1 if no
1.31 + // stack space has been allocated for that particular spill.
1.32 + int32_t pushedAtCycle_;
1.33 + int32_t pushedAtSpill_;
1.34 +
1.35 + // These are registers that are available for temporary use. They may be
1.36 + // assigned InvalidReg. If no corresponding spill space has been assigned,
1.37 + // then these registers do not need to be spilled.
1.38 + Register spilledReg_;
1.39 + FloatRegister spilledFloatReg_;
1.40 +
1.41 + void assertDone();
1.42 + Register tempReg();
1.43 + FloatRegister tempFloatReg();
1.44 + Operand cycleSlot() const;
1.45 + Operand spillSlot() const;
1.46 + Operand toOperand(const MoveOperand &operand, bool isFloat) const;
1.47 +
1.48 + void emitMove(const MoveOperand &from, const MoveOperand &to);
1.49 + void emitFloat32Move(const MoveOperand &from, const MoveOperand &to);
1.50 + void emitDoubleMove(const MoveOperand &from, const MoveOperand &to);
1.51 + void breakCycle(const MoveOperand &from, const MoveOperand &to, MoveOp::Type type);
1.52 + void completeCycle(const MoveOperand &from, const MoveOperand &to, MoveOp::Type type);
1.53 + void emit(const MoveOp &move);
1.54 +
1.55 + public:
1.56 + MoveEmitterARM(MacroAssemblerARMCompat &masm);
1.57 + ~MoveEmitterARM();
1.58 + void emit(const MoveResolver &moves);
1.59 + void finish();
1.60 +};
1.61 +
1.62 +typedef MoveEmitterARM MoveEmitter;
1.63 +
1.64 +} // namespace jit
1.65 +} // namespace js
1.66 +
1.67 +#endif /* jit_arm_MoveEmitter_arm_h */
