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 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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 */

#ifndef CPU_PPC_VM_C1_LIRASSEMBLER_PPC_HPP

#define CPU_PPC_VM_C1_LIRASSEMBLER_PPC_HPP

 private:

  //////////////////////////////////////////////////////////////////////////////

  // PPC64 load/store emission

  //

  // The PPC ld/st instructions cannot accomodate displacements > 16 bits long.

  // The following "pseudo" instructions (load/store) make it easier to

  // use the indexed addressing mode by allowing 32 bit displacements:

  //

  void explicit_null_check(Register addr, CodeEmitInfo* info);

  int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide, bool unaligned);

  int store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide);

  int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide, bool unaligned);

  int load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide);

  int shift_amount(BasicType t);

  // Record the type of the receiver in ReceiverTypeData.

  void type_profile_helper(Register mdo, int mdo_offset_bias,

                           ciMethodData *md, ciProfileData *data,

                           Register recv, Register tmp1, Label* update_done);

  // Setup pointers to MDO, MDO slot, also compute offset bias to access the slot.

  void setup_md_access(ciMethod* method, int bci,

                       ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias);

 public:

  static const ConditionRegister BOOL_RESULT;

  // Emit trampoline stub for call. Call bailout() if failed. Return true on success.

  bool emit_trampoline_stub_for_call(address target, Register Rtoc = noreg);

enum {

  _static_call_stub_size = 4 * BytesPerInstWord + MacroAssembler::b64_patchable_size, // or smaller

  _call_stub_size = _static_call_stub_size + MacroAssembler::trampoline_stub_size, // or smaller

  _call_aot_stub_size = 0,

  _exception_handler_size = MacroAssembler::b64_patchable_size, // or smaller

  _deopt_handler_size = MacroAssembler::bl64_patchable_size

};

  // '_static_call_stub_size' is only used on ppc (see LIR_Assembler::emit_static_call_stub()

  // in c1_LIRAssembler_ppc.cpp. The other, shared getters are defined in c1_LIRAssembler.hpp

  static int static_call_stub_size() {

    if (UseAOT) {

      return _static_call_stub_size + _call_aot_stub_size;

    } else {

      return _static_call_stub_size;

    }

  }

#endif // CPU_PPC_VM_C1_LIRASSEMBLER_PPC_HPP