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#ifndef CPU_S390_MATCHER_S390_HPP
#define CPU_S390_MATCHER_S390_HPP

  // Defined within class Matcher


  // Should correspond to setting above
  static const bool init_array_count_is_in_bytes = false;

  // Whether this platform implements the scalable vector feature
  static const bool implements_scalable_vector = false;

  static constexpr bool supports_scalable_vector() {
    return false;
  }

  // z/Architecture does support misaligned store/load at minimal extra cost.
  static constexpr bool misaligned_vectors_ok() {
    return true;
  }

  // Whether code generation need accurate ConvI2L types.
  static const bool convi2l_type_required = true;

  // Do the processor's shift instructions only use the low 5/6 bits
  // of the count for 32/64 bit ints? If not we need to do the masking
  // ourselves.
  static const bool need_masked_shift_count = false;

  // Does the CPU require late expand (see block.cpp for description of late expand)?
  static const bool require_postalloc_expand = false;

  // No support for generic vector operands.
  static const bool supports_generic_vector_operands = false;

  static constexpr bool isSimpleConstant64(jlong value) {
    // Probably always true, even if a temp register is required.
    return true;
  }

  // Use conditional move (CMOVL)
  static int long_cmove_cost() {
    // z196/z11 or later hardware support conditional moves
    return VM_Version::has_LoadStoreConditional() ? 0 : ConditionalMoveLimit;
  }

  static int float_cmove_cost() {
    // z196/z11 or later hardware support conditional moves
    return VM_Version::has_LoadStoreConditional() ? 0 : ConditionalMoveLimit;
  }

  // Set this as clone_shift_expressions.
  static bool narrow_oop_use_complex_address() {
    if (CompressedOops::base() == nullptr && CompressedOops::shift() == 0) return true;
    return false;
  }

  static bool narrow_klass_use_complex_address() {
    NOT_LP64(ShouldNotCallThis());
    // TODO HS25: z port if (MatchDecodeNodes) return true;
    return false;
  }

  static bool const_oop_prefer_decode() {
    // Prefer ConN+DecodeN over ConP in simple compressed oops mode.
    return CompressedOops::base() == nullptr;
  }

  static bool const_klass_prefer_decode() {
    // Prefer ConNKlass+DecodeNKlass over ConP in simple compressed klass mode.
    return CompressedKlassPointers::base() == nullptr;
  }

  // Is it better to copy float constants, or load them directly from memory?
  // Most RISCs will have to materialize an address into a
  // register first, so they would do better to copy the constant from stack.
  static const bool rematerialize_float_constants = false;

  // If CPU can load and store mis-aligned doubles directly then no fixup is
  // needed. Else we split the double into 2 integer pieces and move it
  // piece-by-piece. Only happens when passing doubles into C code as the
  // Java calling convention forces doubles to be aligned.
  static const bool misaligned_doubles_ok = true;

  // Do floats take an entire double register or just half?
  //
  // A float in resides in a zarch double register. When storing it by
  // z_std, it cannot be restored in C-code by reloading it as a double
  // and casting it into a float afterwards.
  static constexpr bool float_in_double() { return false; }

  // Do ints take an entire long register or just half?
  // The relevant question is how the int is callee-saved:
  // the whole long is written but de-opt'ing will have to extract
  // the relevant 32 bits.
  static const bool int_in_long = true;

  // Does the CPU supports vector variable shift instructions?
  static constexpr bool supports_vector_variable_shifts(void) {
    return false;
  }

  // Does target support predicated operation emulation.
  static bool supports_vector_predicate_op_emulation(int vopc, int vlen, BasicType bt) {
    return false;
  }

  // Does the CPU supports vector variable rotate instructions?
  static constexpr bool supports_vector_variable_rotates(void) {
    return false;
  }

  // Does the CPU supports vector constant rotate instructions?
  static constexpr bool supports_vector_constant_rotates(int shift) {
    return false;
  }

  // Does the CPU supports vector unsigned comparison instructions?
  static constexpr bool supports_vector_comparison_unsigned(int vlen, BasicType bt) {
    return false;
  }

  // Some microarchitectures have mask registers used on vectors
  static constexpr bool has_predicated_vectors(void) {
    return false;
  }

  // true means we have fast l2f conversion
  // false means that conversion is done by runtime call
  static constexpr bool convL2FSupported(void) {
      return true;
  }

  // Implements a variant of EncodeISOArrayNode that encode ASCII only
  static const bool supports_encode_ascii_array = true;

  // Some architecture needs a helper to check for alltrue vector
  static constexpr bool vectortest_needs_second_argument(bool is_alltrue, bool is_predicate) {
    return false;
  }

  // BoolTest mask for vector test intrinsics
  static constexpr BoolTest::mask vectortest_mask(bool is_alltrue, bool is_predicate, int vlen) {
    return BoolTest::illegal;
  }

  // Returns pre-selection estimated size of a vector operation.
  static int vector_op_pre_select_sz_estimate(int vopc, BasicType ety, int vlen) {
    switch(vopc) {
      default: return 0;
      case Op_RoundVF: // fall through
      case Op_RoundVD: {
        return 30;
      }
    }
  }
  // Returns pre-selection estimated size of a scalar operation.
  static int scalar_op_pre_select_sz_estimate(int vopc, BasicType ety) {
    switch(vopc) {
      default: return 0;
      case Op_RoundF: // fall through
      case Op_RoundD: {
        return 30;
      }
    }
  }

  // Is SIMD sort supported for this CPU?
  static bool supports_simd_sort(BasicType bt) {
    return false;
  }

#endif // CPU_S390_MATCHER_S390_HPP
