jit/mips-shared/MacroAssembler-mips-shared-inl.h

/* -*- 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_mips_shared_MacroAssembler_mips_shared_inl_h
#define jit_mips_shared_MacroAssembler_mips_shared_inl_h

#include "jit/mips-shared/MacroAssembler-mips-shared.h"

namespace js {
namespace jit {

//{{{ check_macroassembler_style

void MacroAssembler::moveFloat32ToGPR(FloatRegister src, Register dest) {
  moveFromFloat32(src, dest);
}

void MacroAssembler::moveGPRToFloat32(Register src, FloatRegister dest) {
  moveToFloat32(src, dest);
}

void MacroAssembler::move8SignExtend(Register src, Register dest) {
  ma_seb(dest, src);
}

void MacroAssembler::move16SignExtend(Register src, Register dest) {
  ma_seh(dest, src);
}

void MacroAssembler::loadAbiReturnAddress(Register dest) { movePtr(ra, dest); }

// ===============================================================
// Logical instructions

void MacroAssembler::not32(Register reg) { ma_not(reg, reg); }

void MacroAssembler::and32(Register src, Register dest) {
  as_and(dest, dest, src);
}

void MacroAssembler::and32(Imm32 imm, Register dest) { ma_and(dest, imm); }

void MacroAssembler::and32(Imm32 imm, const Address& dest) {
  load32(dest, SecondScratchReg);
  ma_and(SecondScratchReg, imm);
  store32(SecondScratchReg, dest);
}

void MacroAssembler::and32(const Address& src, Register dest) {
  load32(src, SecondScratchReg);
  ma_and(dest, SecondScratchReg);
}

void MacroAssembler::or32(Register src, Register dest) { ma_or(dest, src); }

void MacroAssembler::or32(Imm32 imm, Register dest) { ma_or(dest, imm); }

void MacroAssembler::or32(Imm32 imm, const Address& dest) {
  load32(dest, SecondScratchReg);
  ma_or(SecondScratchReg, imm);
  store32(SecondScratchReg, dest);
}

void MacroAssembler::xor32(Register src, Register dest) { ma_xor(dest, src); }

void MacroAssembler::xor32(Imm32 imm, Register dest) { ma_xor(dest, imm); }

// ===============================================================
// Swap instructions

void MacroAssembler::byteSwap16SignExtend(Register reg) {
  ma_wsbh(reg, reg);
  ma_seh(reg, reg);
}

void MacroAssembler::byteSwap16ZeroExtend(Register reg) {
  ma_wsbh(reg, reg);
  ma_and(reg, Imm32(0xFFFF));
}

void MacroAssembler::byteSwap32(Register reg) {
  ma_wsbh(reg, reg);
  as_rotr(reg, reg, 16);
}

// ===============================================================
// Arithmetic instructions

void MacroAssembler::add32(Register src, Register dest) {
  as_addu(dest, dest, src);
}

void MacroAssembler::add32(Imm32 imm, Register dest) {
  ma_addu(dest, dest, imm);
}

void MacroAssembler::add32(Imm32 imm, const Address& dest) {
  load32(dest, SecondScratchReg);
  ma_addu(SecondScratchReg, imm);
  store32(SecondScratchReg, dest);
}

void MacroAssembler::addPtr(Imm32 imm, const Address& dest) {
  loadPtr(dest, ScratchRegister);
  addPtr(imm, ScratchRegister);
  storePtr(ScratchRegister, dest);
}

void MacroAssembler::addPtr(const Address& src, Register dest) {
  loadPtr(src, ScratchRegister);
  addPtr(ScratchRegister, dest);
}

void MacroAssembler::addDouble(FloatRegister src, FloatRegister dest) {
  as_addd(dest, dest, src);
}

void MacroAssembler::addFloat32(FloatRegister src, FloatRegister dest) {
  as_adds(dest, dest, src);
}

void MacroAssembler::sub32(Register src, Register dest) {
  as_subu(dest, dest, src);
}

void MacroAssembler::sub32(Imm32 imm, Register dest) {
  ma_subu(dest, dest, imm);
}

void MacroAssembler::sub32(const Address& src, Register dest) {
  load32(src, SecondScratchReg);
  as_subu(dest, dest, SecondScratchReg);
}

void MacroAssembler::subPtr(Register src, const Address& dest) {
  loadPtr(dest, SecondScratchReg);
  subPtr(src, SecondScratchReg);
  storePtr(SecondScratchReg, dest);
}

void MacroAssembler::subPtr(const Address& addr, Register dest) {
  loadPtr(addr, SecondScratchReg);
  subPtr(SecondScratchReg, dest);
}

void MacroAssembler::subDouble(FloatRegister src, FloatRegister dest) {
  as_subd(dest, dest, src);
}

void MacroAssembler::subFloat32(FloatRegister src, FloatRegister dest) {
  as_subs(dest, dest, src);
}

void MacroAssembler::mul32(Register rhs, Register srcDest) {
  as_mul(srcDest, srcDest, rhs);
}

void MacroAssembler::mulFloat32(FloatRegister src, FloatRegister dest) {
  as_muls(dest, dest, src);
}

void MacroAssembler::mulDouble(FloatRegister src, FloatRegister dest) {
  as_muld(dest, dest, src);
}

void MacroAssembler::mulDoublePtr(ImmPtr imm, Register temp,
                                  FloatRegister dest) {
  movePtr(imm, ScratchRegister);
  loadDouble(Address(ScratchRegister, 0), ScratchDoubleReg);
  mulDouble(ScratchDoubleReg, dest);
}

void MacroAssembler::quotient32(Register rhs, Register srcDest,
                                bool isUnsigned) {
  if (isUnsigned) {
#ifdef MIPSR6
    as_divu(srcDest, srcDest, rhs);
#else
    as_divu(srcDest, rhs);
#endif
  } else {
#ifdef MIPSR6
    as_div(srcDest, srcDest, rhs);
#else
    as_div(srcDest, rhs);
#endif
  }
#ifndef MIPSR6
  as_mflo(srcDest);
#endif
}

void MacroAssembler::remainder32(Register rhs, Register srcDest,
                                 bool isUnsigned) {
  if (isUnsigned) {
#ifdef MIPSR6
    as_modu(srcDest, srcDest, rhs);
#else
    as_divu(srcDest, rhs);
#endif
  } else {
#ifdef MIPSR6
    as_mod(srcDest, srcDest, rhs);
#else
    as_div(srcDest, rhs);
#endif
  }
#ifndef MIPSR6
  as_mfhi(srcDest);
#endif
}

void MacroAssembler::divFloat32(FloatRegister src, FloatRegister dest) {
  as_divs(dest, dest, src);
}

void MacroAssembler::divDouble(FloatRegister src, FloatRegister dest) {
  as_divd(dest, dest, src);
}

void MacroAssembler::neg32(Register reg) { ma_negu(reg, reg); }

void MacroAssembler::negateDouble(FloatRegister reg) { as_negd(reg, reg); }

void MacroAssembler::negateFloat(FloatRegister reg) { as_negs(reg, reg); }

void MacroAssembler::absFloat32(FloatRegister src, FloatRegister dest) {
  as_abss(dest, src);
}

void MacroAssembler::absDouble(FloatRegister src, FloatRegister dest) {
  as_absd(dest, src);
}

void MacroAssembler::sqrtFloat32(FloatRegister src, FloatRegister dest) {
  as_sqrts(dest, src);
}

void MacroAssembler::sqrtDouble(FloatRegister src, FloatRegister dest) {
  as_sqrtd(dest, src);
}

void MacroAssembler::minFloat32(FloatRegister other, FloatRegister srcDest,
                                bool handleNaN) {
  minMaxFloat32(srcDest, other, handleNaN, false);
}

void MacroAssembler::minDouble(FloatRegister other, FloatRegister srcDest,
                               bool handleNaN) {
  minMaxDouble(srcDest, other, handleNaN, false);
}

void MacroAssembler::maxFloat32(FloatRegister other, FloatRegister srcDest,
                                bool handleNaN) {
  minMaxFloat32(srcDest, other, handleNaN, true);
}

void MacroAssembler::maxDouble(FloatRegister other, FloatRegister srcDest,
                               bool handleNaN) {
  minMaxDouble(srcDest, other, handleNaN, true);
}

// ===============================================================
// Shift functions

void MacroAssembler::lshift32(Register src, Register dest) {
  ma_sll(dest, dest, src);
}

void MacroAssembler::flexibleLshift32(Register src, Register dest) {
  lshift32(src, dest);
}

void MacroAssembler::lshift32(Imm32 imm, Register dest) {
  ma_sll(dest, dest, imm);
}

void MacroAssembler::rshift32(Register src, Register dest) {
  ma_srl(dest, dest, src);
}

void MacroAssembler::flexibleRshift32(Register src, Register dest) {
  rshift32(src, dest);
}

void MacroAssembler::rshift32(Imm32 imm, Register dest) {
  ma_srl(dest, dest, imm);
}

void MacroAssembler::rshift32Arithmetic(Register src, Register dest) {
  ma_sra(dest, dest, src);
}

void MacroAssembler::flexibleRshift32Arithmetic(Register src, Register dest) {
  rshift32Arithmetic(src, dest);
}

void MacroAssembler::rshift32Arithmetic(Imm32 imm, Register dest) {
  ma_sra(dest, dest, imm);
}

// ===============================================================
// Rotation functions
void MacroAssembler::rotateLeft(Imm32 count, Register input, Register dest) {
  if (count.value) {
    ma_rol(dest, input, count);
  } else {
    ma_move(dest, input);
  }
}
void MacroAssembler::rotateLeft(Register count, Register input, Register dest) {
  ma_rol(dest, input, count);
}
void MacroAssembler::rotateRight(Imm32 count, Register input, Register dest) {
  if (count.value) {
    ma_ror(dest, input, count);
  } else {
    ma_move(dest, input);
  }
}
void MacroAssembler::rotateRight(Register count, Register input,
                                 Register dest) {
  ma_ror(dest, input, count);
}

// ===============================================================
// Bit counting functions

void MacroAssembler::clz32(Register src, Register dest, bool knownNotZero) {
  as_clz(dest, src);
}

void MacroAssembler::ctz32(Register src, Register dest, bool knownNotZero) {
  ma_ctz(dest, src);
}

void MacroAssembler::popcnt32(Register input, Register output, Register tmp) {
  // Equivalent to GCC output of mozilla::CountPopulation32()
  ma_move(output, input);
  ma_sra(tmp, input, Imm32(1));
  ma_and(tmp, Imm32(0x55555555));
  ma_subu(output, tmp);
  ma_sra(tmp, output, Imm32(2));
  ma_and(output, Imm32(0x33333333));
  ma_and(tmp, Imm32(0x33333333));
  ma_addu(output, tmp);
  ma_srl(tmp, output, Imm32(4));
  ma_addu(output, tmp);
  ma_and(output, Imm32(0xF0F0F0F));
  ma_sll(tmp, output, Imm32(8));
  ma_addu(output, tmp);
  ma_sll(tmp, output, Imm32(16));
  ma_addu(output, tmp);
  ma_sra(output, output, Imm32(24));
}

// ===============================================================
// Branch functions

template <class L>
void MacroAssembler::branch32(Condition cond, Register lhs, Register rhs,
                              L label) {
  ma_b(lhs, rhs, label, cond);
}

template <class L>
void MacroAssembler::branch32(Condition cond, Register lhs, Imm32 imm,
                              L label) {
  ma_b(lhs, imm, label, cond);
}

void MacroAssembler::branch32(Condition cond, const Address& lhs, Register rhs,
                              Label* label) {
  load32(lhs, SecondScratchReg);
  ma_b(SecondScratchReg, rhs, label, cond);
}

void MacroAssembler::branch32(Condition cond, const Address& lhs, Imm32 rhs,
                              Label* label) {
  load32(lhs, SecondScratchReg);
  ma_b(SecondScratchReg, rhs, label, cond);
}

void MacroAssembler::branch32(Condition cond, const AbsoluteAddress& lhs,
                              Register rhs, Label* label) {
  load32(lhs, SecondScratchReg);
  ma_b(SecondScratchReg, rhs, label, cond);
}

void MacroAssembler::branch32(Condition cond, const AbsoluteAddress& lhs,
                              Imm32 rhs, Label* label) {
  load32(lhs, SecondScratchReg);
  ma_b(SecondScratchReg, rhs, label, cond);
}

void MacroAssembler::branch32(Condition cond, const BaseIndex& lhs, Imm32 rhs,
                              Label* label) {
  load32(lhs, SecondScratchReg);
  ma_b(SecondScratchReg, rhs, label, cond);
}

void MacroAssembler::branch32(Condition cond, wasm::SymbolicAddress addr,
                              Imm32 imm, Label* label) {
  load32(addr, SecondScratchReg);
  ma_b(SecondScratchReg, imm, label, cond);
}

template <class L>
void MacroAssembler::branchPtr(Condition cond, Register lhs, Register rhs,
                               L label) {
  ma_b(lhs, rhs, label, cond);
}

void MacroAssembler::branchPtr(Condition cond, Register lhs, Imm32 rhs,
                               Label* label) {
  ma_b(lhs, rhs, label, cond);
}

void MacroAssembler::branchPtr(Condition cond, Register lhs, ImmPtr rhs,
                               Label* label) {
  ma_b(lhs, rhs, label, cond);
}

void MacroAssembler::branchPtr(Condition cond, Register lhs, ImmGCPtr rhs,
                               Label* label) {
  ma_b(lhs, rhs, label, cond);
}

void MacroAssembler::branchPtr(Condition cond, Register lhs, ImmWord rhs,
                               Label* label) {
  ma_b(lhs, rhs, label, cond);
}

template <class L>
void MacroAssembler::branchPtr(Condition cond, const Address& lhs, Register rhs,
                               L label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchPtr(Condition cond, const Address& lhs, ImmPtr rhs,
                               Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchPtr(Condition cond, const Address& lhs, ImmGCPtr rhs,
                               Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchPtr(Condition cond, const Address& lhs, ImmWord rhs,
                               Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchPtr(Condition cond, const AbsoluteAddress& lhs,
                               Register rhs, Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchPtr(Condition cond, const AbsoluteAddress& lhs,
                               ImmWord rhs, Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchPtr(Condition cond, wasm::SymbolicAddress lhs,
                               Register rhs, Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchPtr(Condition cond, const BaseIndex& lhs,
                               ImmWord rhs, Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchFloat(DoubleCondition cond, FloatRegister lhs,
                                 FloatRegister rhs, Label* label) {
  ma_bc1s(lhs, rhs, label, cond);
}

void MacroAssembler::branchTruncateFloat32ToInt32(FloatRegister src,
                                                  Register dest, Label* fail) {
  convertFloat32ToInt32(src, dest, fail, false);
}

void MacroAssembler::branchDouble(DoubleCondition cond, FloatRegister lhs,
                                  FloatRegister rhs, Label* label) {
  ma_bc1d(lhs, rhs, label, cond);
}

void MacroAssembler::branchTruncateDoubleToInt32(FloatRegister src,
                                                 Register dest, Label* fail) {
  convertDoubleToInt32(src, dest, fail, false);
}

template <typename T>
void MacroAssembler::branchAdd32(Condition cond, T src, Register dest,
                                 Label* overflow) {
  switch (cond) {
    case Overflow:
      ma_addTestOverflow(dest, dest, src, overflow);
      break;
    case CarryClear:
    case CarrySet:
      ma_addTestCarry(cond, dest, dest, src, overflow);
      break;
    default:
      MOZ_CRASH("NYI");
  }
}

template <typename T>
void MacroAssembler::branchSub32(Condition cond, T src, Register dest,
                                 Label* overflow) {
  switch (cond) {
    case Overflow:
      ma_subTestOverflow(dest, dest, src, overflow);
      break;
    case NonZero:
    case Zero:
    case Signed:
    case NotSigned:
      ma_subu(dest, src);
      ma_b(dest, dest, overflow, cond);
      break;
    default:
      MOZ_CRASH("NYI");
  }
}

template <typename T>
void MacroAssembler::branchMul32(Condition cond, T src, Register dest,
                                 Label* overflow) {
  MOZ_ASSERT(cond == Assembler::Overflow);
  ma_mul_branch_overflow(dest, dest, src, overflow);
}

template <typename T>
void MacroAssembler::branchRshift32(Condition cond, T src, Register dest,
                                    Label* label) {
  MOZ_ASSERT(cond == Zero || cond == NonZero);
  rshift32(src, dest);
  branch32(cond == Zero ? Equal : NotEqual, dest, Imm32(0), label);
}

void MacroAssembler::branchNeg32(Condition cond, Register reg, Label* label) {
  MOZ_ASSERT(cond == Overflow);
  neg32(reg);
  branch32(Assembler::Equal, reg, Imm32(INT32_MIN), label);
}

void MacroAssembler::decBranchPtr(Condition cond, Register lhs, Imm32 rhs,
                                  Label* label) {
  subPtr(rhs, lhs);
  branchPtr(cond, lhs, Imm32(0), label);
}

template <class L>
void MacroAssembler::branchTest32(Condition cond, Register lhs, Register rhs,
                                  L label) {
  MOZ_ASSERT(cond == Zero || cond == NonZero || cond == Signed ||
             cond == NotSigned);
  if (lhs == rhs) {
    ma_b(lhs, rhs, label, cond);
  } else {
    as_and(ScratchRegister, lhs, rhs);
    ma_b(ScratchRegister, ScratchRegister, label, cond);
  }
}

template <class L>
void MacroAssembler::branchTest32(Condition cond, Register lhs, Imm32 rhs,
                                  L label) {
  MOZ_ASSERT(cond == Zero || cond == NonZero || cond == Signed ||
             cond == NotSigned);
  ma_and(ScratchRegister, lhs, rhs);
  ma_b(ScratchRegister, ScratchRegister, label, cond);
}

void MacroAssembler::branchTest32(Condition cond, const Address& lhs, Imm32 rhs,
                                  Label* label) {
  load32(lhs, SecondScratchReg);
  branchTest32(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchTest32(Condition cond, const AbsoluteAddress& lhs,
                                  Imm32 rhs, Label* label) {
  load32(lhs, SecondScratchReg);
  branchTest32(cond, SecondScratchReg, rhs, label);
}

template <class L>
void MacroAssembler::branchTestPtr(Condition cond, Register lhs, Register rhs,
                                   L label) {
  MOZ_ASSERT(cond == Zero || cond == NonZero || cond == Signed ||
             cond == NotSigned);
  if (lhs == rhs) {
    ma_b(lhs, rhs, label, cond);
  } else {
    as_and(ScratchRegister, lhs, rhs);
    ma_b(ScratchRegister, ScratchRegister, label, cond);
  }
}

void MacroAssembler::branchTestPtr(Condition cond, Register lhs, Imm32 rhs,
                                   Label* label) {
  MOZ_ASSERT(cond == Zero || cond == NonZero || cond == Signed ||
             cond == NotSigned);
  ma_and(ScratchRegister, lhs, rhs);
  ma_b(ScratchRegister, ScratchRegister, label, cond);
}

void MacroAssembler::branchTestPtr(Condition cond, const Address& lhs,
                                   Imm32 rhs, Label* label) {
  loadPtr(lhs, SecondScratchReg);
  branchTestPtr(cond, SecondScratchReg, rhs, label);
}

void MacroAssembler::branchTestUndefined(Condition cond, Register tag,
                                         Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_UNDEFINED), label, cond);
}

void MacroAssembler::branchTestUndefined(Condition cond, const Address& address,
                                         Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestUndefined(cond, tag, label);
}

void MacroAssembler::branchTestUndefined(Condition cond,
                                         const BaseIndex& address,
                                         Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestUndefined(cond, tag, label);
}

void MacroAssembler::branchTestInt32(Condition cond, Register tag,
                                     Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_INT32), label, cond);
}

void MacroAssembler::branchTestInt32(Condition cond, const Address& address,
                                     Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestInt32(cond, tag, label);
}

void MacroAssembler::branchTestInt32(Condition cond, const BaseIndex& address,
                                     Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestInt32(cond, tag, label);
}

void MacroAssembler::branchTestDouble(Condition cond, const Address& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestDouble(cond, tag, label);
}

void MacroAssembler::branchTestDouble(Condition cond, const BaseIndex& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestDouble(cond, tag, label);
}

void MacroAssembler::branchTestDoubleTruthy(bool b, FloatRegister value,
                                            Label* label) {
  ma_lid(ScratchDoubleReg, 0.0);
  DoubleCondition cond = b ? DoubleNotEqual : DoubleEqualOrUnordered;
  ma_bc1d(value, ScratchDoubleReg, label, cond);
}

void MacroAssembler::branchTestNumber(Condition cond, Register tag,
                                      Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  Condition actual = cond == Equal ? BelowOrEqual : Above;
  ma_b(tag, ImmTag(JS::detail::ValueUpperInclNumberTag), label, actual);
}

void MacroAssembler::branchTestBoolean(Condition cond, Register tag,
                                       Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_BOOLEAN), label, cond);
}

void MacroAssembler::branchTestBoolean(Condition cond, const Address& address,
                                       Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestBoolean(cond, tag, label);
}

void MacroAssembler::branchTestBoolean(Condition cond, const BaseIndex& address,
                                       Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestBoolean(cond, tag, label);
}

void MacroAssembler::branchTestString(Condition cond, Register tag,
                                      Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_STRING), label, cond);
}

void MacroAssembler::branchTestString(Condition cond, const Address& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestString(cond, tag, label);
}

void MacroAssembler::branchTestString(Condition cond, const BaseIndex& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestString(cond, tag, label);
}

void MacroAssembler::branchTestSymbol(Condition cond, Register tag,
                                      Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_SYMBOL), label, cond);
}

void MacroAssembler::branchTestSymbol(Condition cond, const BaseIndex& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestSymbol(cond, tag, label);
}

void MacroAssembler::branchTestSymbol(Condition cond, const Address& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestSymbol(cond, tag, label);
}

void MacroAssembler::branchTestBigInt(Condition cond, Register tag,
                                      Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_BIGINT), label, cond);
}

void MacroAssembler::branchTestBigInt(Condition cond, const Address& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestBigInt(cond, tag, label);
}

void MacroAssembler::branchTestNull(Condition cond, Register tag,
                                    Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_NULL), label, cond);
}

void MacroAssembler::branchTestNull(Condition cond, const Address& address,
                                    Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestNull(cond, tag, label);
}

void MacroAssembler::branchTestNull(Condition cond, const BaseIndex& address,
                                    Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestNull(cond, tag, label);
}

void MacroAssembler::branchTestObject(Condition cond, Register tag,
                                      Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_OBJECT), label, cond);
}

void MacroAssembler::branchTestObject(Condition cond, const Address& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestObject(cond, tag, label);
}

void MacroAssembler::branchTestObject(Condition cond, const BaseIndex& address,
                                      Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestObject(cond, tag, label);
}

void MacroAssembler::branchTestGCThing(Condition cond, const Address& address,
                                       Label* label) {
  branchTestGCThingImpl(cond, address, label);
}

void MacroAssembler::branchTestGCThing(Condition cond, const BaseIndex& address,
                                       Label* label) {
  branchTestGCThingImpl(cond, address, label);
}

void MacroAssembler::branchTestGCThing(Condition cond,
                                       const ValueOperand& address,
                                       Label* label) {
  branchTestGCThingImpl(cond, address, label);
}

template <typename T>
void MacroAssembler::branchTestGCThingImpl(Condition cond, const T& address,
                                           Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  ma_b(tag, ImmTag(JS::detail::ValueLowerInclGCThingTag), label,
       (cond == Equal) ? AboveOrEqual : Below);
}

void MacroAssembler::branchTestPrimitive(Condition cond, Register tag,
                                         Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JS::detail::ValueUpperExclPrimitiveTag), label,
       (cond == Equal) ? Below : AboveOrEqual);
}

void MacroAssembler::branchTestMagic(Condition cond, Register tag,
                                     Label* label) {
  MOZ_ASSERT(cond == Equal || cond == NotEqual);
  ma_b(tag, ImmTag(JSVAL_TAG_MAGIC), label, cond);
}

void MacroAssembler::branchTestMagic(Condition cond, const Address& address,
                                     Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestMagic(cond, tag, label);
}

void MacroAssembler::branchTestMagic(Condition cond, const BaseIndex& address,
                                     Label* label) {
  SecondScratchRegisterScope scratch2(*this);
  Register tag = extractTag(address, scratch2);
  branchTestMagic(cond, tag, label);
}

void MacroAssembler::branchToComputedAddress(const BaseIndex& addr) {
  loadPtr(addr, ScratchRegister);
  branch(ScratchRegister);
}

void MacroAssembler::cmp32Move32(Condition cond, Register lhs, Register rhs,
                                 Register src, Register dest) {
  Register scratch = ScratchRegister;
  MOZ_ASSERT(src != scratch && dest != scratch);
  cmp32Set(cond, lhs, rhs, scratch);
#ifdef MIPSR6
  as_selnez(src, src, scratch);
  as_seleqz(dest, dest, scratch);
  as_or(dest, dest, src);
#else
  as_movn(dest, src, scratch);
#endif
}

void MacroAssembler::cmp32MovePtr(Condition cond, Register lhs, Imm32 rhs,
                                  Register src, Register dest) {
  Register scratch = ScratchRegister;
  MOZ_ASSERT(src != scratch && dest != scratch);
  cmp32Set(cond, lhs, rhs, scratch);
#ifdef MIPSR6
  as_selnez(src, src, scratch);
  as_seleqz(dest, dest, scratch);
  as_or(dest, dest, src);
#else
  as_movn(dest, src, scratch);
#endif
}

void MacroAssembler::cmp32Move32(Condition cond, Register lhs,
                                 const Address& rhs, Register src,
                                 Register dest) {
  SecondScratchRegisterScope scratch2(*this);
  MOZ_ASSERT(lhs != scratch2 && src != scratch2 && dest != scratch2);
  load32(rhs, scratch2);
  cmp32Move32(cond, lhs, scratch2, src, dest);
}

void MacroAssembler::cmp32Load32(Condition cond, Register lhs,
                                 const Address& rhs, const Address& src,
                                 Register dest) {
  ScratchRegisterScope scratch(*this);
  MOZ_ASSERT(lhs != scratch && dest != scratch);
  load32(rhs, scratch);
  cmp32Load32(cond, lhs, scratch, src, dest);
}

void MacroAssembler::cmp32Load32(Condition cond, Register lhs, Register rhs,
                                 const Address& src, Register dest) {
  Label skip;
  branch32(Assembler::InvertCondition(cond), lhs, rhs, &skip);
  load32(src, dest);
  bind(&skip);
}

void MacroAssembler::cmp32LoadPtr(Condition cond, const Address& lhs, Imm32 rhs,
                                  const Address& src, Register dest) {
  Label skip;
  branch32(Assembler::InvertCondition(cond), lhs, rhs, &skip);
  loadPtr(src, dest);
  bind(&skip);
}

void MacroAssembler::test32LoadPtr(Condition cond, const Address& addr,
                                   Imm32 mask, const Address& src,
                                   Register dest) {
  MOZ_RELEASE_ASSERT(!JitOptions.spectreStringMitigations);
  Label skip;
  branchTest32(Assembler::InvertCondition(cond), addr, mask, &skip);
  loadPtr(src, dest);
  bind(&skip);
}

void MacroAssembler::test32MovePtr(Condition cond, const Address& addr,
                                   Imm32 mask, Register src, Register dest) {
  MOZ_CRASH();
}

void MacroAssembler::spectreBoundsCheck32(Register index, Register length,
                                          Register maybeScratch,
                                          Label* failure) {
  MOZ_RELEASE_ASSERT(!JitOptions.spectreIndexMasking);
  branch32(Assembler::BelowOrEqual, length, index, failure);
}

void MacroAssembler::spectreBoundsCheck32(Register index, const Address& length,
                                          Register maybeScratch,
                                          Label* failure) {
  MOZ_RELEASE_ASSERT(!JitOptions.spectreIndexMasking);
  branch32(Assembler::BelowOrEqual, length, index, failure);
}

void MacroAssembler::spectreMovePtr(Condition cond, Register src,
                                    Register dest) {
  MOZ_CRASH();
}

void MacroAssembler::spectreZeroRegister(Condition cond, Register scratch,
                                         Register dest) {
  MOZ_CRASH();
}

// ========================================================================
// Memory access primitives.
void MacroAssembler::storeFloat32x3(FloatRegister src, const Address& dest) {
  MOZ_CRASH("NYI");
}
void MacroAssembler::storeFloat32x3(FloatRegister src, const BaseIndex& dest) {
  MOZ_CRASH("NYI");
}

void MacroAssembler::storeUncanonicalizedDouble(FloatRegister src,
                                                const Address& addr) {
  ma_sd(src, addr);
}
void MacroAssembler::storeUncanonicalizedDouble(FloatRegister src,
                                                const BaseIndex& addr) {
  ma_sd(src, addr);
}

void MacroAssembler::storeUncanonicalizedFloat32(FloatRegister src,
                                                 const Address& addr) {
  ma_ss(src, addr);
}
void MacroAssembler::storeUncanonicalizedFloat32(FloatRegister src,
                                                 const BaseIndex& addr) {
  ma_ss(src, addr);
}

void MacroAssembler::memoryBarrier(MemoryBarrierBits barrier) {
  if (barrier) {
    as_sync();
  }
}

// ===============================================================
// Clamping functions.

void MacroAssembler::clampIntToUint8(Register reg) {
  // If reg is < 0, then we want to clamp to 0.
  as_slti(ScratchRegister, reg, 0);
#ifdef MIPSR6
  as_seleqz(reg, reg, ScratchRegister);
#else
  as_movn(reg, zero, ScratchRegister);
#endif
  // If reg is >= 255, then we want to clamp to 255.
  ma_li(SecondScratchReg, Imm32(255));
  as_slti(ScratchRegister, reg, 255);
#ifdef MIPSR6
  as_seleqz(SecondScratchReg, SecondScratchReg, ScratchRegister);
  as_selnez(reg, reg, ScratchRegister);
  as_or(reg, reg, SecondScratchReg);
#else
  as_movz(reg, SecondScratchReg, ScratchRegister);
#endif
}

//}}} check_macroassembler_style
// ===============================================================

}  // namespace jit
}  // namespace js

#endif /* jit_mips_shared_MacroAssembler_mips_shared_inl_h */