SharedICRegisters-arm64.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * vim: set ts=8 sts=2 et sw=2 tw=80:

 * 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_arm64_SharedICRegisters_arm64_h

#define jit_arm64_SharedICRegisters_arm64_h

#include "jit/arm64/Assembler-arm64.h"

#include "jit/Registers.h"

#include "jit/RegisterSets.h"

namespace js {

namespace jit {

// ValueOperands R0, R1, and R2.

// R0 == JSReturnReg, and R2 uses registers not preserved across calls.

// R1 value should be preserved across calls.

static constexpr Register R0_ = r2;

static constexpr Register R1_ = r19;

static constexpr Register R2_ = r0;

static constexpr ValueOperand R0(R0_);

static constexpr ValueOperand R1(R1_);

static constexpr ValueOperand R2(R2_);

// ICTailCallReg and ICStubReg use registers that are not preserved across

// calls.

static constexpr Register ICTailCallReg = r30;

static constexpr Register ICStubReg = r9;

// R7 - R9 are generally available for use within stubcode.

// Note that BaselineTailCallReg is actually just the link

// register.  In ARM code emission, we do not clobber BaselineTailCallReg

// since we keep the return address for calls there.

static constexpr FloatRegister FloatReg0 = {FloatRegisters::d0,

                                            FloatRegisters::Double};

static constexpr FloatRegister FloatReg1 = {FloatRegisters::d1,

                                            FloatRegisters::Double};

static constexpr FloatRegister FloatReg2 = {FloatRegisters::d2,

                                            FloatRegisters::Double};

static constexpr FloatRegister FloatReg3 = {FloatRegisters::d3,

                                            FloatRegisters::Double};

}  // namespace jit

}  // namespace js

#endif  // jit_arm64_SharedICRegisters_arm64_h