SharedICRegisters-mips64.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_mips64_SharedICRegisters_mips64_h

#define jit_mips64_SharedICRegisters_mips64_h

#include "jit/mips64/Assembler-mips64.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 ValueOperand R0(v1);

static constexpr ValueOperand R1(s4);

static constexpr ValueOperand R2(a6);

// ICTailCallReg and ICStubReg

// These use registers that are not preserved across calls.

static constexpr Register ICTailCallReg = ra;

static constexpr Register ICStubReg = a5;

// Register used internally by MacroAssemblerMIPS.

static constexpr Register BaselineSecondScratchReg = SecondScratchReg;

// Note that ICTailCallReg is actually just the link register.

// In MIPS code emission, we do not clobber ICTailCallReg since we keep

// the return address for calls there.

// FloatReg0 must be equal to ReturnFloatReg.

static constexpr FloatRegister FloatReg0 = f0;

static constexpr FloatRegister FloatReg1 = f2;

static constexpr FloatRegister FloatReg2 = f4;

static constexpr FloatRegister FloatReg3 = f6;

}  // namespace jit

}  // namespace js

#endif /* jit_mips64_SharedICRegisters_mips64_h */