JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2008, 2019, 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
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#ifndef CPU_ARM_INTERPRETERRT_ARM_HPP
#define CPU_ARM_INTERPRETERRT_ARM_HPP

// native method calls

class SignatureHandlerGenerator: public NativeSignatureIterator {
 private:
  MacroAssembler* _masm;
  int _abi_offset;
  int  _ireg;

#ifdef __ABI_HARD__
  int _fp_slot; // number of FPR's with arguments loaded
  int _single_fpr_slot;
#endif

  void move(int from_offset, int to_offset);
  void box(int from_offset, int to_offset);

  void pass_int();
  void pass_long();
  void pass_float();
  void pass_object();
#ifdef __ABI_HARD__
  void pass_double();
#endif
 public:
  // Creation
  SignatureHandlerGenerator(const methodHandle& method, CodeBuffer* buffer);

  // Code generation
  void generate(uint64_t fingerprint);
};


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