/*

 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

// Platform-specific definitions for method handles.

// These definitions are inlined into class MethodHandles.

// Adapters

enum /* platform_dependent_constants */ {

  adapter_code_size = NOT_LP64(16000 DEBUG_ONLY(+ 25000)) LP64_ONLY(32000 DEBUG_ONLY(+ 150000))

};

// Additional helper methods for MethodHandles code generation:

public:

  static void load_klass_from_Class(MacroAssembler* _masm, Register klass_reg);

  static void verify_klass(MacroAssembler* _masm,

                           Register obj, SystemDictionary::WKID klass_id,

                           const char* error_message = "wrong klass") NOT_DEBUG_RETURN;

  static void verify_method_handle(MacroAssembler* _masm, Register mh_reg) {

    verify_klass(_masm, mh_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_invoke_MethodHandle),

                 "reference is a MH");

  }

  static void verify_ref_kind(MacroAssembler* _masm, int ref_kind, Register member_reg, Register temp) NOT_DEBUG_RETURN;

  // Similar to InterpreterMacroAssembler::jump_from_interpreted.

  // Takes care of special dispatch from single stepping too.

  static void jump_from_method_handle(MacroAssembler* _masm, Register method, Register temp,

                                      bool for_compiler_entry);

  static void jump_to_lambda_form(MacroAssembler* _masm,

                                  Register recv, Register method_temp,

                                  Register temp2,

                                  bool for_compiler_entry);

  static Register saved_last_sp_register() {

    // Should be in sharedRuntime, not here.

    return LP64_ONLY(r13) NOT_LP64(rsi);

  }