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comparison src/share/vm/interpreter/templateTable.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 1997-2005 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 #ifndef CC_INTERP
26 // All the necessary definitions used for (bytecode) template generation. Instead of
27 // spreading the implementation functionality for each bytecode in the interpreter
28 // and the snippet generator, a template is assigned to each bytecode which can be
29 // used to generate the bytecode's implementation if needed.
30
31
32 // A Template describes the properties of a code template for a given bytecode
33 // and provides a generator to generate the code template.
34
35 class Template VALUE_OBJ_CLASS_SPEC {
36 private:
37 enum Flags {
38 uses_bcp_bit, // set if template needs the bcp pointing to bytecode
39 does_dispatch_bit, // set if template dispatches on its own
40 calls_vm_bit, // set if template calls the vm
41 wide_bit // set if template belongs to a wide instruction
42 };
43
44 typedef void (*generator)(int arg);
45
46 int _flags; // describes interpreter template properties (bcp unknown)
47 TosState _tos_in; // tos cache state before template execution
48 TosState _tos_out; // tos cache state after template execution
49 generator _gen; // template code generator
50 int _arg; // argument for template code generator
51
52 void initialize(int flags, TosState tos_in, TosState tos_out, generator gen, int arg);
53
54 friend class TemplateTable;
55
56 public:
57 Bytecodes::Code bytecode() const;
58 bool is_valid() const { return _gen != NULL; }
59 bool uses_bcp() const { return (_flags & (1 << uses_bcp_bit )) != 0; }
60 bool does_dispatch() const { return (_flags & (1 << does_dispatch_bit)) != 0; }
61 bool calls_vm() const { return (_flags & (1 << calls_vm_bit )) != 0; }
62 bool is_wide() const { return (_flags & (1 << wide_bit )) != 0; }
63 TosState tos_in() const { return _tos_in; }
64 TosState tos_out() const { return _tos_out; }
65 void generate(InterpreterMacroAssembler* masm);
66 };
67
68
69 // The TemplateTable defines all Templates and provides accessor functions
70 // to get the template for a given bytecode.
71
72 class TemplateTable: AllStatic {
73 public:
74 enum Operation { add, sub, mul, div, rem, _and, _or, _xor, shl, shr, ushr };
75 enum Condition { equal, not_equal, less, less_equal, greater, greater_equal };
76
77 private:
78 static bool _is_initialized; // true if TemplateTable has been initialized
79 static Template _template_table [Bytecodes::number_of_codes];
80 static Template _template_table_wide[Bytecodes::number_of_codes];
81
82 static Template* _desc; // the current template to be generated
83 static Bytecodes::Code bytecode() { return _desc->bytecode(); }
84
85 public:
86 //%note templates_1
87 static InterpreterMacroAssembler* _masm; // the assembler used when generating templates
88
89 private:
90
91 // special registers
92 static inline Address at_bcp(int offset);
93
94 // helpers
95 static void unimplemented_bc();
96 static void patch_bytecode(Bytecodes::Code bc, Register scratch1,
97 Register scratch2, bool load_bc_in_scratch = true);
98
99 // C calls
100 static void call_VM(Register oop_result, address entry_point);
101 static void call_VM(Register oop_result, address entry_point, Register arg_1);
102 static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2);
103 static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3);
104
105 // these overloadings are not presently used on SPARC:
106 static void call_VM(Register oop_result, Register last_java_sp, address entry_point);
107 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1);
108 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2);
109 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3);
110
111 // bytecodes
112 static void nop();
113
114 static void aconst_null();
115 static void iconst(int value);
116 static void lconst(int value);
117 static void fconst(int value);
118 static void dconst(int value);
119
120 static void bipush();
121 static void sipush();
122 static void ldc(bool wide);
123 static void ldc2_w();
124
125 static void locals_index(Register reg, int offset = 1);
126 static void iload();
127 static void fast_iload();
128 static void fast_iload2();
129 static void fast_icaload();
130 static void lload();
131 static void fload();
132 static void dload();
133 static void aload();
134
135 static void locals_index_wide(Register reg);
136 static void wide_iload();
137 static void wide_lload();
138 static void wide_fload();
139 static void wide_dload();
140 static void wide_aload();
141
142 static void iaload();
143 static void laload();
144 static void faload();
145 static void daload();
146 static void aaload();
147 static void baload();
148 static void caload();
149 static void saload();
150
151 static void iload(int n);
152 static void lload(int n);
153 static void fload(int n);
154 static void dload(int n);
155 static void aload(int n);
156 static void aload_0();
157
158 static void istore();
159 static void lstore();
160 static void fstore();
161 static void dstore();
162 static void astore();
163
164 static void wide_istore();
165 static void wide_lstore();
166 static void wide_fstore();
167 static void wide_dstore();
168 static void wide_astore();
169
170 static void iastore();
171 static void lastore();
172 static void fastore();
173 static void dastore();
174 static void aastore();
175 static void bastore();
176 static void castore();
177 static void sastore();
178
179 static void istore(int n);
180 static void lstore(int n);
181 static void fstore(int n);
182 static void dstore(int n);
183 static void astore(int n);
184
185 static void pop();
186 static void pop2();
187 static void dup();
188 static void dup_x1();
189 static void dup_x2();
190 static void dup2();
191 static void dup2_x1();
192 static void dup2_x2();
193 static void swap();
194
195 static void iop2(Operation op);
196 static void lop2(Operation op);
197 static void fop2(Operation op);
198 static void dop2(Operation op);
199
200 static void idiv();
201 static void irem();
202
203 static void lmul();
204 static void ldiv();
205 static void lrem();
206 static void lshl();
207 static void lshr();
208 static void lushr();
209
210 static void ineg();
211 static void lneg();
212 static void fneg();
213 static void dneg();
214
215 static void iinc();
216 static void wide_iinc();
217 static void convert();
218 static void lcmp();
219
220 static void float_cmp (bool is_float, int unordered_result);
221 static void float_cmp (int unordered_result);
222 static void double_cmp(int unordered_result);
223
224 static void count_calls(Register method, Register temp);
225 static void branch(bool is_jsr, bool is_wide);
226 static void if_0cmp (Condition cc);
227 static void if_icmp (Condition cc);
228 static void if_nullcmp(Condition cc);
229 static void if_acmp (Condition cc);
230
231 static void _goto();
232 static void jsr();
233 static void ret();
234 static void wide_ret();
235
236 static void goto_w();
237 static void jsr_w();
238
239 static void tableswitch();
240 static void lookupswitch();
241 static void fast_linearswitch();
242 static void fast_binaryswitch();
243
244 static void _return(TosState state);
245
246 static void resolve_cache_and_index(int byte_no, Register cache, Register index);
247 static void load_invoke_cp_cache_entry(int byte_no,
248 Register method,
249 Register itable_index,
250 Register flags,
251 bool is_invokevirtual = false,
252 bool is_virtual_final = false);
253 static void load_field_cp_cache_entry(Register obj,
254 Register cache,
255 Register index,
256 Register offset,
257 Register flags,
258 bool is_static);
259 static void invokevirtual(int byte_no);
260 static void invokespecial(int byte_no);
261 static void invokestatic(int byte_no);
262 static void invokeinterface(int byte_no);
263 static void fast_invokevfinal(int byte_no);
264
265 static void getfield_or_static(int byte_no, bool is_static);
266 static void putfield_or_static(int byte_no, bool is_static);
267 static void getfield(int byte_no);
268 static void putfield(int byte_no);
269 static void getstatic(int byte_no);
270 static void putstatic(int byte_no);
271 static void pop_and_check_object(Register obj);
272
273 static void _new();
274 static void newarray();
275 static void anewarray();
276 static void arraylength();
277 static void checkcast();
278 static void instanceof();
279
280 static void athrow();
281
282 static void monitorenter();
283 static void monitorexit();
284
285 static void wide();
286 static void multianewarray();
287
288 static void fast_xaccess(TosState state);
289 static void fast_accessfield(TosState state);
290 static void fast_storefield(TosState state);
291
292 static void _breakpoint();
293
294 static void shouldnotreachhere();
295
296 // jvmti support
297 static void jvmti_post_field_access(Register cache, Register index, bool is_static, bool has_tos);
298 static void jvmti_post_field_mod(Register cache, Register index, bool is_static);
299 static void jvmti_post_fast_field_mod();
300
301 // debugging of TemplateGenerator
302 static void transition(TosState tos_in, TosState tos_out);// checks if in/out states expected by template generator correspond to table entries
303
304 // initialization helpers
305 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)( ), char filler );
306 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(int arg ), int arg );
307 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(bool arg ), bool arg );
308 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(TosState tos), TosState tos);
309 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Operation op), Operation op);
310 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Condition cc), Condition cc);
311
312 friend class Template;
313
314 // InterpreterMacroAssembler::is_a(), etc., need TemplateTable::call_VM().
315 friend class InterpreterMacroAssembler;
316
317 public:
318 // Initialization
319 static void initialize();
320 static void pd_initialize();
321
322 // Templates
323 static Template* template_for (Bytecodes::Code code) { Bytecodes::check (code); return &_template_table [code]; }
324 static Template* template_for_wide(Bytecodes::Code code) { Bytecodes::wide_check(code); return &_template_table_wide[code]; }
325
326 // Platform specifics
327 #include "incls/_templateTable_pd.hpp.incl"
328 };
329 #endif /* !CC_INTERP */