c1_LIRAssembler_ppc.hpp revision 10049:73443d24e529 
1/*
2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
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24 */
25
26#ifndef CPU_PPC_VM_C1_LIRASSEMBLER_PPC_HPP
27#define CPU_PPC_VM_C1_LIRASSEMBLER_PPC_HPP
28
29 private:
30
31  //////////////////////////////////////////////////////////////////////////////
32  // PPC64 load/store emission
33  //
34  // The PPC ld/st instructions cannot accomodate displacements > 16 bits long.
35  // The following "pseudo" instructions (load/store) make it easier to
36  // use the indexed addressing mode by allowing 32 bit displacements:
37  //
38
39  void explicit_null_check(Register addr, CodeEmitInfo* info);
40
41  int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide, bool unaligned);
42  int store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide);
43
44  int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide, bool unaligned);
45  int load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide);
46
47  int shift_amount(BasicType t);
48
49  // Record the type of the receiver in ReceiverTypeData.
50  void type_profile_helper(Register mdo, int mdo_offset_bias,
51                           ciMethodData *md, ciProfileData *data,
52                           Register recv, Register tmp1, Label* update_done);
53  // Setup pointers to MDO, MDO slot, also compute offset bias to access the slot.
54  void setup_md_access(ciMethod* method, int bci,
55                       ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias);
56 public:
57  static const ConditionRegister BOOL_RESULT;
58
59  // Emit trampoline stub for call. Call bailout() if failed. Return true on success.
60  bool emit_trampoline_stub_for_call(address target, Register Rtoc = noreg);
61
62enum {
63  max_static_call_stub_size = 4 * BytesPerInstWord + MacroAssembler::b64_patchable_size,
64  call_stub_size = max_static_call_stub_size + MacroAssembler::trampoline_stub_size, // or smaller
65  exception_handler_size = MacroAssembler::b64_patchable_size, // or smaller
66  deopt_handler_size = MacroAssembler::bl64_patchable_size
67};
68
69#endif // CPU_PPC_VM_C1_LIRASSEMBLER_PPC_HPP
70