1 /*
2 * Copyright (c) 2004, 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 # include "incls/_precompiled.incl"
26 # include "incls/_jniFastGetField_sparc.cpp.incl"
27
28 // TSO ensures that loads are blocking and ordered with respect to
29 // to earlier loads, so we don't need LoadLoad membars.
30
31 #define __ masm->
32
33 #define BUFFER_SIZE 30*sizeof(jint)
34
35 // Common register usage:
36 // O0: env
37 // O1: obj
38 // O2: jfieldID
39 // O4: offset (O2 >> 2)
40 // G4: old safepoint counter
41
42 address JNI_FastGetField::generate_fast_get_int_field0(BasicType type) {
43 const char *name;
44 switch (type) {
45 case T_BOOLEAN: name = "jni_fast_GetBooleanField"; break;
46 case T_BYTE: name = "jni_fast_GetByteField"; break;
47 case T_CHAR: name = "jni_fast_GetCharField"; break;
48 case T_SHORT: name = "jni_fast_GetShortField"; break;
49 case T_INT: name = "jni_fast_GetIntField"; break;
50 default: ShouldNotReachHere();
51 }
52 ResourceMark rm;
53 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize);
54 CodeBuffer cbuf(blob);
55 MacroAssembler* masm = new MacroAssembler(&cbuf);
56 address fast_entry = __ pc();
57
58 Label label1, label2;
59
60 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr());
61 __ sethi (cnt_addrlit, O3);
62 Address cnt_addr(O3, cnt_addrlit.low10());
63 __ ld (cnt_addr, G4);
64 __ andcc (G4, 1, G0);
65 __ br (Assembler::notZero, false, Assembler::pn, label1);
66 __ delayed()->srl (O2, 2, O4);
67 __ ld_ptr (O1, 0, O5);
68
69 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small");
70 speculative_load_pclist[count] = __ pc();
71 switch (type) {
72 case T_BOOLEAN: __ ldub (O5, O4, G3); break;
73 case T_BYTE: __ ldsb (O5, O4, G3); break;
74 case T_CHAR: __ lduh (O5, O4, G3); break;
75 case T_SHORT: __ ldsh (O5, O4, G3); break;
76 case T_INT: __ ld (O5, O4, G3); break;
77 default: ShouldNotReachHere();
78 }
79
80 __ ld (cnt_addr, O5);
81 __ cmp (O5, G4);
82 __ br (Assembler::notEqual, false, Assembler::pn, label2);
83 __ delayed()->mov (O7, G1);
84 __ retl ();
85 __ delayed()->mov (G3, O0);
86
87 slowcase_entry_pclist[count++] = __ pc();
88 __ bind (label1);
89 __ mov (O7, G1);
90
91 address slow_case_addr;
92 switch (type) {
93 case T_BOOLEAN: slow_case_addr = jni_GetBooleanField_addr(); break;
94 case T_BYTE: slow_case_addr = jni_GetByteField_addr(); break;
95 case T_CHAR: slow_case_addr = jni_GetCharField_addr(); break;
96 case T_SHORT: slow_case_addr = jni_GetShortField_addr(); break;
97 case T_INT: slow_case_addr = jni_GetIntField_addr(); break;
98 default: ShouldNotReachHere();
99 }
100 __ bind (label2);
101 __ call (slow_case_addr, relocInfo::none);
102 __ delayed()->mov (G1, O7);
103
104 __ flush ();
105
106 return fast_entry;
107 }
108
109 address JNI_FastGetField::generate_fast_get_boolean_field() {
110 return generate_fast_get_int_field0(T_BOOLEAN);
111 }
112
113 address JNI_FastGetField::generate_fast_get_byte_field() {
114 return generate_fast_get_int_field0(T_BYTE);
115 }
116
117 address JNI_FastGetField::generate_fast_get_char_field() {
118 return generate_fast_get_int_field0(T_CHAR);
119 }
120
121 address JNI_FastGetField::generate_fast_get_short_field() {
122 return generate_fast_get_int_field0(T_SHORT);
123 }
124
125 address JNI_FastGetField::generate_fast_get_int_field() {
126 return generate_fast_get_int_field0(T_INT);
127 }
128
129 address JNI_FastGetField::generate_fast_get_long_field() {
130 const char *name = "jni_fast_GetLongField";
131 ResourceMark rm;
132 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize);
133 CodeBuffer cbuf(blob);
134 MacroAssembler* masm = new MacroAssembler(&cbuf);
135 address fast_entry = __ pc();
136
137 Label label1, label2;
138
139 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr());
140 __ sethi (cnt_addrlit, G3);
141 Address cnt_addr(G3, cnt_addrlit.low10());
142 __ ld (cnt_addr, G4);
143 __ andcc (G4, 1, G0);
144 __ br (Assembler::notZero, false, Assembler::pn, label1);
145 __ delayed()->srl (O2, 2, O4);
146 __ ld_ptr (O1, 0, O5);
147 __ add (O5, O4, O5);
148
149 #ifndef _LP64
150 assert(count < LIST_CAPACITY-1, "LIST_CAPACITY too small");
151 speculative_load_pclist[count++] = __ pc();
152 __ ld (O5, 0, G2);
153
154 speculative_load_pclist[count] = __ pc();
155 __ ld (O5, 4, O3);
156 #else
157 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small");
158 speculative_load_pclist[count] = __ pc();
159 __ ldx (O5, 0, O3);
160 #endif
161
162 __ ld (cnt_addr, G1);
163 __ cmp (G1, G4);
164 __ br (Assembler::notEqual, false, Assembler::pn, label2);
165 __ delayed()->mov (O7, G1);
166
167 #ifndef _LP64
168 __ mov (G2, O0);
169 __ retl ();
170 __ delayed()->mov (O3, O1);
171 #else
172 __ retl ();
173 __ delayed()->mov (O3, O0);
174 #endif
175
176 #ifndef _LP64
177 slowcase_entry_pclist[count-1] = __ pc();
178 slowcase_entry_pclist[count++] = __ pc() ;
179 #else
180 slowcase_entry_pclist[count++] = __ pc();
181 #endif
182
183 __ bind (label1);
184 __ mov (O7, G1);
185
186 address slow_case_addr = jni_GetLongField_addr();
187 __ bind (label2);
188 __ call (slow_case_addr, relocInfo::none);
189 __ delayed()->mov (G1, O7);
190
191 __ flush ();
192
193 return fast_entry;
194 }
195
196 address JNI_FastGetField::generate_fast_get_float_field0(BasicType type) {
197 const char *name;
198 switch (type) {
199 case T_FLOAT: name = "jni_fast_GetFloatField"; break;
200 case T_DOUBLE: name = "jni_fast_GetDoubleField"; break;
201 default: ShouldNotReachHere();
202 }
203 ResourceMark rm;
204 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize);
205 CodeBuffer cbuf(blob);
206 MacroAssembler* masm = new MacroAssembler(&cbuf);
207 address fast_entry = __ pc();
208
209 Label label1, label2;
210
211 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr());
212 __ sethi (cnt_addrlit, O3);
213 Address cnt_addr(O3, cnt_addrlit.low10());
214 __ ld (cnt_addr, G4);
215 __ andcc (G4, 1, G0);
216 __ br (Assembler::notZero, false, Assembler::pn, label1);
217 __ delayed()->srl (O2, 2, O4);
218 __ ld_ptr (O1, 0, O5);
219
220 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small");
221 speculative_load_pclist[count] = __ pc();
222 switch (type) {
223 case T_FLOAT: __ ldf (FloatRegisterImpl::S, O5, O4, F0); break;
224 case T_DOUBLE: __ ldf (FloatRegisterImpl::D, O5, O4, F0); break;
225 default: ShouldNotReachHere();
226 }
227
228 __ ld (cnt_addr, O5);
229 __ cmp (O5, G4);
230 __ br (Assembler::notEqual, false, Assembler::pn, label2);
231 __ delayed()->mov (O7, G1);
232
233 __ retl ();
234 __ delayed()-> nop ();
235
236 slowcase_entry_pclist[count++] = __ pc();
237 __ bind (label1);
238 __ mov (O7, G1);
239
240 address slow_case_addr;
241 switch (type) {
242 case T_FLOAT: slow_case_addr = jni_GetFloatField_addr(); break;
243 case T_DOUBLE: slow_case_addr = jni_GetDoubleField_addr(); break;
244 default: ShouldNotReachHere();
245 }
246 __ bind (label2);
247 __ call (slow_case_addr, relocInfo::none);
248 __ delayed()->mov (G1, O7);
249
250 __ flush ();
251
252 return fast_entry;
253 }
254
255 address JNI_FastGetField::generate_fast_get_float_field() {
256 return generate_fast_get_float_field0(T_FLOAT);
257 }
258
259 address JNI_FastGetField::generate_fast_get_double_field() {
260 return generate_fast_get_float_field0(T_DOUBLE);
261 }