JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2014, Red Hat 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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#ifndef CPU_AARCH64_C1_LIRASSEMBLER_AARCH64_HPP
#define CPU_AARCH64_C1_LIRASSEMBLER_AARCH64_HPP

// ArrayCopyStub needs access to bailout
friend class ArrayCopyStub;

 private:

  int array_element_size(BasicType type) const;

  void arith_fpu_implementation(LIR_Code code, int left_index, int right_index, int dest_index, bool pop_fpu_stack);

  // helper functions which checks for overflow and sets bailout if it
  // occurs.  Always returns a valid embeddable pointer but in the
  // bailout case the pointer won't be to unique storage.
  address float_constant(float f);
  address double_constant(double d);

  address int_constant(jlong n);

  bool is_literal_address(LIR_Address* addr);

  // When we need to use something other than rscratch1 use this
  // method.
  Address as_Address(LIR_Address* addr, Register tmp);

  // Record the type of the receiver in ReceiverTypeData
  void type_profile_helper(Register mdo,
                           ciMethodData *md, ciProfileData *data,
                           Register recv, Label* update_done);
  void add_debug_info_for_branch(address adr, CodeEmitInfo* info);

  void casw(Register addr, Register newval, Register cmpval);
  void casl(Register addr, Register newval, Register cmpval);

  void poll_for_safepoint(relocInfo::relocType rtype, CodeEmitInfo* info = NULL);

  static const int max_tableswitches = 20;
  struct tableswitch switches[max_tableswitches];
  int tableswitch_count;

  void init() { tableswitch_count = 0; }

  void deoptimize_trap(CodeEmitInfo *info);

  enum {
    // call stub: CompiledStaticCall::to_interp_stub_size() +
    //            CompiledStaticCall::to_trampoline_stub_size()
    _call_stub_size = 13 * NativeInstruction::instruction_size,
    _call_aot_stub_size = 0,
    _exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(175),

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