1 /*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 public:
26
27 enum {
28 nof_reg_args = 6, // registers o0-o5 are available for parameter passing
29 first_available_sp_in_frame = frame::memory_parameter_word_sp_offset * BytesPerWord,
30 frame_pad_in_bytes = 0
31 };
32
33 static const int pd_c_runtime_reserved_arg_size;
34
35 static LIR_Opr G0_opr;
36 static LIR_Opr G1_opr;
37 static LIR_Opr G2_opr;
38 static LIR_Opr G3_opr;
39 static LIR_Opr G4_opr;
40 static LIR_Opr G5_opr;
41 static LIR_Opr G6_opr;
42 static LIR_Opr G7_opr;
43 static LIR_Opr O0_opr;
44 static LIR_Opr O1_opr;
45 static LIR_Opr O2_opr;
46 static LIR_Opr O3_opr;
47 static LIR_Opr O4_opr;
48 static LIR_Opr O5_opr;
49 static LIR_Opr O6_opr;
50 static LIR_Opr O7_opr;
51 static LIR_Opr L0_opr;
52 static LIR_Opr L1_opr;
53 static LIR_Opr L2_opr;
54 static LIR_Opr L3_opr;
55 static LIR_Opr L4_opr;
56 static LIR_Opr L5_opr;
57 static LIR_Opr L6_opr;
58 static LIR_Opr L7_opr;
59 static LIR_Opr I0_opr;
60 static LIR_Opr I1_opr;
61 static LIR_Opr I2_opr;
62 static LIR_Opr I3_opr;
63 static LIR_Opr I4_opr;
64 static LIR_Opr I5_opr;
65 static LIR_Opr I6_opr;
66 static LIR_Opr I7_opr;
67
68 static LIR_Opr SP_opr;
69 static LIR_Opr FP_opr;
70
71 static LIR_Opr G0_oop_opr;
72 static LIR_Opr G1_oop_opr;
73 static LIR_Opr G2_oop_opr;
74 static LIR_Opr G3_oop_opr;
75 static LIR_Opr G4_oop_opr;
76 static LIR_Opr G5_oop_opr;
77 static LIR_Opr G6_oop_opr;
78 static LIR_Opr G7_oop_opr;
79 static LIR_Opr O0_oop_opr;
80 static LIR_Opr O1_oop_opr;
81 static LIR_Opr O2_oop_opr;
82 static LIR_Opr O3_oop_opr;
83 static LIR_Opr O4_oop_opr;
84 static LIR_Opr O5_oop_opr;
85 static LIR_Opr O6_oop_opr;
86 static LIR_Opr O7_oop_opr;
87 static LIR_Opr L0_oop_opr;
88 static LIR_Opr L1_oop_opr;
89 static LIR_Opr L2_oop_opr;
90 static LIR_Opr L3_oop_opr;
91 static LIR_Opr L4_oop_opr;
92 static LIR_Opr L5_oop_opr;
93 static LIR_Opr L6_oop_opr;
94 static LIR_Opr L7_oop_opr;
95 static LIR_Opr I0_oop_opr;
96 static LIR_Opr I1_oop_opr;
97 static LIR_Opr I2_oop_opr;
98 static LIR_Opr I3_oop_opr;
99 static LIR_Opr I4_oop_opr;
100 static LIR_Opr I5_oop_opr;
101 static LIR_Opr I6_oop_opr;
102 static LIR_Opr I7_oop_opr;
103
104 static LIR_Opr in_long_opr;
105 static LIR_Opr out_long_opr;
106 static LIR_Opr g1_long_single_opr;
107
108 static LIR_Opr F0_opr;
109 static LIR_Opr F0_double_opr;
110
111 static LIR_Opr Oexception_opr;
112 static LIR_Opr Oissuing_pc_opr;
113
114 private:
115 static FloatRegister _fpu_regs [nof_fpu_regs];
116
117 static LIR_Opr as_long_single_opr(Register r) {
118 return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r));
119 }
120 static LIR_Opr as_long_pair_opr(Register r) {
121 return LIR_OprFact::double_cpu(cpu_reg2rnr(r->successor()), cpu_reg2rnr(r));
122 }
123
124 public:
125
126 #ifdef _LP64
127 static LIR_Opr as_long_opr(Register r) {
128 return as_long_single_opr(r);
129 }
130 static LIR_Opr as_pointer_opr(Register r) {
131 return as_long_single_opr(r);
132 }
133 #else
134 static LIR_Opr as_long_opr(Register r) {
135 return as_long_pair_opr(r);
136 }
137 static LIR_Opr as_pointer_opr(Register r) {
138 return as_opr(r);
139 }
140 #endif
141 static LIR_Opr as_float_opr(FloatRegister r) {
142 return LIR_OprFact::single_fpu(r->encoding());
143 }
144 static LIR_Opr as_double_opr(FloatRegister r) {
145 return LIR_OprFact::double_fpu(r->successor()->encoding(), r->encoding());
146 }
147
148 static FloatRegister nr2floatreg (int rnr);
149
150 static VMReg fpu_regname (int n);
151
152 static bool is_caller_save_register (LIR_Opr reg);
153 static bool is_caller_save_register (Register r);