view src/share/vm/interpreter/templateInterpreterGenerator.hpp @ 1091:6aa7255741f3

6906727: UseCompressedOops: some card-marking fixes related to object arrays Summary: Introduced a new write_ref_array(HeapWords* start, size_t count) method that does the requisite MemRegion range calculation so (some of the) clients of the erstwhile write_ref_array(MemRegion mr) do not need to worry. This removed all external uses of array_size(), which was also simplified and made private. Asserts were added to catch other possible issues. Further, less essential, fixes stemming from this investigation are deferred to CR 6904516 (to follow shortly in hs17). Reviewed-by: kvn, coleenp, jmasa
author ysr
date Thu, 03 Dec 2009 15:01:57 -0800
parents be93aad57795
children 389049f3f393
line wrap: on
line source

/*
 * Copyright 1997-2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

// This file contains the platform-independent parts
// of the template interpreter generator.

#ifndef CC_INTERP

class TemplateInterpreterGenerator: public AbstractInterpreterGenerator {
 protected:

  // entry points for shared code sequence
  address _unimplemented_bytecode;
  address _illegal_bytecode_sequence;

  // shared code sequences
  // Converter for native abi result to tosca result
  address generate_result_handler_for(BasicType type);
  address generate_slow_signature_handler();
  address generate_error_exit(const char* msg);
  address generate_StackOverflowError_handler();
  address generate_exception_handler(const char* name, const char* message) {
    return generate_exception_handler_common(name, message, false);
  }
  address generate_klass_exception_handler(const char* name) {
    return generate_exception_handler_common(name, NULL, true);
  }
  address generate_exception_handler_common(const char* name, const char* message, bool pass_oop);
  address generate_ClassCastException_handler();
  address generate_WrongMethodType_handler();
  address generate_ArrayIndexOutOfBounds_handler(const char* name);
  address generate_continuation_for(TosState state);
  address generate_return_entry_for(TosState state, int step, bool unbox = false);
  address generate_return_unbox_entry_for(TosState state, int step) {
    return generate_return_entry_for(state, step, true);
  }
  address generate_earlyret_entry_for(TosState state);
  address generate_deopt_entry_for(TosState state, int step);
  address generate_safept_entry_for(TosState state, address runtime_entry);
  void    generate_throw_exception();

  // entry point generator
//   address generate_method_entry(AbstractInterpreter::MethodKind kind);

  // Instruction generation
  void generate_and_dispatch (Template* t, TosState tos_out = ilgl);
  void set_vtos_entry_points (Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep);
  void set_short_entry_points(Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep);
  void set_wide_entry_point  (Template* t, address& wep);

  void set_entry_points(Bytecodes::Code code);
  void set_unimplemented(int i);
  void set_entry_points_for_all_bytes();
  void set_safepoints_for_all_bytes();

  // Helpers for generate_and_dispatch
  address generate_trace_code(TosState state)   PRODUCT_RETURN0;
  void count_bytecode()                         PRODUCT_RETURN;
  void histogram_bytecode(Template* t)          PRODUCT_RETURN;
  void histogram_bytecode_pair(Template* t)     PRODUCT_RETURN;
  void trace_bytecode(Template* t)              PRODUCT_RETURN;
  void stop_interpreter_at()                    PRODUCT_RETURN;

  void generate_all();

 public:
  TemplateInterpreterGenerator(StubQueue* _code);

  #include "incls/_templateInterpreterGenerator_pd.hpp.incl"

};

#endif // !CC_INTERP