c1_LIRAssembler_sparc.hpp revision 0:a61af66fc99e 
1/*
2 * Copyright 2000-2006 Sun Microsystems, Inc.  All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 private:
26
27  //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
28  //
29  // Sparc load/store emission
30  //
31  // The sparc ld/st instructions cannot accomodate displacements > 13 bits long.
32  // The following "pseudo" sparc instructions (load/store) make it easier to use the indexed addressing mode
33  // by allowing 32 bit displacements:
34  //
35  //    When disp <= 13 bits long, a single load or store instruction is emitted with (disp + [d]).
36  //    When disp >  13 bits long, code is emitted to set the displacement into the O7 register,
37  //       and then a load or store is emitted with ([O7] + [d]).
38  //
39
40  // some load/store variants return the code_offset for proper positioning of debug info for null checks
41
42  // load/store with 32 bit displacement
43  int load(Register s, int disp, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);
44  void store(Register value, Register base, int offset, BasicType type, CodeEmitInfo *info = NULL);
45
46  // loadf/storef with 32 bit displacement
47  void load(Register s, int disp, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL);
48  void store(FloatRegister d, Register s1, int disp, BasicType st_type, CodeEmitInfo* info = NULL);
49
50  // convienence methods for calling load/store with an Address
51  void load(const Address& a, Register d, BasicType ld_type, CodeEmitInfo* info = NULL, int offset = 0);
52  void store(Register d, const Address& a, BasicType st_type, CodeEmitInfo* info = NULL, int offset = 0);
53  void load(const Address& a, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL, int offset = 0);
54  void store(FloatRegister d, const Address& a, BasicType st_type, CodeEmitInfo* info = NULL, int offset = 0);
55
56  // convienence methods for calling load/store with an LIR_Address
57  void load(LIR_Address* a, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);
58  void store(Register d, LIR_Address* a, BasicType st_type, CodeEmitInfo* info = NULL);
59  void load(LIR_Address* a, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL);
60  void store(FloatRegister d, LIR_Address* a, BasicType st_type, CodeEmitInfo* info = NULL);
61
62  int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool unaligned = false);
63  int store(LIR_Opr from_reg, Register base, Register disp, BasicType type);
64
65  int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool unaligned = false);
66  int load(Register base, Register disp, LIR_Opr to_reg, BasicType type);
67
68  void monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no);
69
70  int shift_amount(BasicType t);
71
72  static bool is_single_instruction(LIR_Op* op);
73
74 public:
75  void pack64( Register rs, Register rd );
76  void unpack64( Register rd );
77
78enum {
79#ifdef _LP64
80         call_stub_size = 68,
81#else
82         call_stub_size = 20,
83#endif // _LP64
84         exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4),
85         deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4) };
86