/* -*- 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_mips32_LIR_mips32_h
#define jit_mips32_LIR_mips32_h

namespace js {
namespace jit {

class LBoxFloatingPoint : public LInstructionHelper<2, 1, 1> {
  MIRType type_;

 public:
  LIR_HEADER(BoxFloatingPoint);

  LBoxFloatingPoint(const LAllocation& in, const LDefinition& temp,
                    MIRType type)
      : LInstructionHelper(classOpcode), type_(type) {
    setOperand(0, in);
    setTemp(0, temp);
  }

  MIRType type() const { return type_; }
  const char* extraName() const { return StringFromMIRType(type_); }
};

class LUnbox : public LInstructionHelper<1, 2, 0> {
 public:
  LIR_HEADER(Unbox);

  LUnbox() : LInstructionHelper(classOpcode) {}

  MUnbox* mir() const { return mir_->toUnbox(); }
  const LAllocation* payload() { return getOperand(0); }
  const LAllocation* type() { return getOperand(1); }
  const char* extraName() const { return StringFromMIRType(mir()->type()); }
};

class LUnboxFloatingPoint : public LInstructionHelper<1, 2, 0> {
  MIRType type_;

 public:
  LIR_HEADER(UnboxFloatingPoint);

  static const size_t Input = 0;

  LUnboxFloatingPoint(const LBoxAllocation& input, MIRType type)
      : LInstructionHelper(classOpcode), type_(type) {
    setBoxOperand(Input, input);
  }

  MUnbox* mir() const { return mir_->toUnbox(); }
  MIRType type() const { return type_; }
  const char* extraName() const { return StringFromMIRType(type_); }
};

class LDivOrModI64
    : public LCallInstructionHelper<INT64_PIECES, INT64_PIECES * 2, 0> {
 public:
  LIR_HEADER(DivOrModI64)

  static const size_t Lhs = 0;
  static const size_t Rhs = INT64_PIECES;

  LDivOrModI64(const LInt64Allocation& lhs, const LInt64Allocation& rhs)
      : LCallInstructionHelper(classOpcode) {
    setInt64Operand(Lhs, lhs);
    setInt64Operand(Rhs, rhs);
  }

  MBinaryArithInstruction* mir() const {
    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
    return static_cast<MBinaryArithInstruction*>(mir_);
  }

  bool canBeDivideByZero() const {
    if (mir_->isMod()) {
      return mir_->toMod()->canBeDivideByZero();
    }
    return mir_->toDiv()->canBeDivideByZero();
  }
  bool canBeNegativeOverflow() const {
    if (mir_->isMod()) {
      return mir_->toMod()->canBeNegativeDividend();
    }
    return mir_->toDiv()->canBeNegativeOverflow();
  }
  wasm::BytecodeOffset bytecodeOffset() const {
    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
    if (mir_->isMod()) {
      return mir_->toMod()->bytecodeOffset();
    }
    return mir_->toDiv()->bytecodeOffset();
  }
};

class LUDivOrModI64
    : public LCallInstructionHelper<INT64_PIECES, INT64_PIECES * 2, 0> {
 public:
  LIR_HEADER(UDivOrModI64)

  static const size_t Lhs = 0;
  static const size_t Rhs = INT64_PIECES;

  LUDivOrModI64(const LInt64Allocation& lhs, const LInt64Allocation& rhs)
      : LCallInstructionHelper(classOpcode) {
    setInt64Operand(Lhs, lhs);
    setInt64Operand(Rhs, rhs);
  }
  MBinaryArithInstruction* mir() const {
    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
    return static_cast<MBinaryArithInstruction*>(mir_);
  }

  bool canBeDivideByZero() const {
    if (mir_->isMod()) {
      return mir_->toMod()->canBeDivideByZero();
    }
    return mir_->toDiv()->canBeDivideByZero();
  }
  bool canBeNegativeOverflow() const {
    if (mir_->isMod()) {
      return mir_->toMod()->canBeNegativeDividend();
    }
    return mir_->toDiv()->canBeNegativeOverflow();
  }
  wasm::BytecodeOffset bytecodeOffset() const {
    MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
    if (mir_->isMod()) {
      return mir_->toMod()->bytecodeOffset();
    }
    return mir_->toDiv()->bytecodeOffset();
  }
};

class LWasmTruncateToInt64 : public LCallInstructionHelper<INT64_PIECES, 1, 0> {
 public:
  LIR_HEADER(WasmTruncateToInt64);

  explicit LWasmTruncateToInt64(const LAllocation& in)
      : LCallInstructionHelper(classOpcode) {
    setOperand(0, in);
  }

  MWasmTruncateToInt64* mir() const { return mir_->toWasmTruncateToInt64(); }
};

class LInt64ToFloatingPoint
    : public LCallInstructionHelper<1, INT64_PIECES, 0> {
 public:
  LIR_HEADER(Int64ToFloatingPoint);

  explicit LInt64ToFloatingPoint(const LInt64Allocation& in)
      : LCallInstructionHelper(classOpcode) {
    setInt64Operand(0, in);
  }

  MInt64ToFloatingPoint* mir() const { return mir_->toInt64ToFloatingPoint(); }
};

class LWasmAtomicLoadI64 : public LInstructionHelper<INT64_PIECES, 1, 0> {
 public:
  LIR_HEADER(WasmAtomicLoadI64);

  LWasmAtomicLoadI64(const LAllocation& ptr) : LInstructionHelper(classOpcode) {
    setOperand(0, ptr);
  }

  const LAllocation* ptr() { return getOperand(0); }
  const MWasmLoad* mir() const { return mir_->toWasmLoad(); }
};

class LWasmAtomicStoreI64 : public LInstructionHelper<0, 1 + INT64_PIECES, 1> {
 public:
  LIR_HEADER(WasmAtomicStoreI64);

  LWasmAtomicStoreI64(const LAllocation& ptr, const LInt64Allocation& value,
                      const LDefinition& tmp)
      : LInstructionHelper(classOpcode) {
    setOperand(0, ptr);
    setInt64Operand(1, value);
    setTemp(0, tmp);
  }

  const LAllocation* ptr() { return getOperand(0); }
  const LInt64Allocation value() { return getInt64Operand(1); }
  const LDefinition* tmp() { return getTemp(0); }
  const MWasmStore* mir() const { return mir_->toWasmStore(); }
};

}  // namespace jit
}  // namespace js

#endif /* jit_mips32_LIR_mips32_h */