Wed, 02 Jun 2010 22:45:42 -0700
Merge
1 /*
2 * Copyright (c) 1997, 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 */
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.
32 // A Template describes the properties of a code template for a given bytecode
33 // and provides a generator to generate the code template.
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 };
44 typedef void (*generator)(int arg);
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
52 void initialize(int flags, TosState tos_in, TosState tos_out, generator gen, int arg);
54 friend class TemplateTable;
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 };
69 // The TemplateTable defines all Templates and provides accessor functions
70 // to get the template for a given bytecode.
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 enum CacheByte { f1_byte = 1, f2_byte = 2, f1_oop = 0x11 }; // byte_no codes
78 private:
79 static bool _is_initialized; // true if TemplateTable has been initialized
80 static Template _template_table [Bytecodes::number_of_codes];
81 static Template _template_table_wide[Bytecodes::number_of_codes];
83 static Template* _desc; // the current template to be generated
84 static Bytecodes::Code bytecode() { return _desc->bytecode(); }
86 static BarrierSet* _bs; // Cache the barrier set.
87 public:
88 //%note templates_1
89 static InterpreterMacroAssembler* _masm; // the assembler used when generating templates
91 private:
93 // special registers
94 static inline Address at_bcp(int offset);
96 // helpers
97 static void unimplemented_bc();
98 static void patch_bytecode(Bytecodes::Code bc, Register scratch1,
99 Register scratch2, bool load_bc_in_scratch = true);
101 // C calls
102 static void call_VM(Register oop_result, address entry_point);
103 static void call_VM(Register oop_result, address entry_point, Register arg_1);
104 static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2);
105 static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3);
107 // these overloadings are not presently used on SPARC:
108 static void call_VM(Register oop_result, Register last_java_sp, address entry_point);
109 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1);
110 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2);
111 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3);
113 // bytecodes
114 static void nop();
116 static void aconst_null();
117 static void iconst(int value);
118 static void lconst(int value);
119 static void fconst(int value);
120 static void dconst(int value);
122 static void bipush();
123 static void sipush();
124 static void ldc(bool wide);
125 static void ldc2_w();
127 static void locals_index(Register reg, int offset = 1);
128 static void iload();
129 static void fast_iload();
130 static void fast_iload2();
131 static void fast_icaload();
132 static void lload();
133 static void fload();
134 static void dload();
135 static void aload();
137 static void locals_index_wide(Register reg);
138 static void wide_iload();
139 static void wide_lload();
140 static void wide_fload();
141 static void wide_dload();
142 static void wide_aload();
144 static void iaload();
145 static void laload();
146 static void faload();
147 static void daload();
148 static void aaload();
149 static void baload();
150 static void caload();
151 static void saload();
153 static void iload(int n);
154 static void lload(int n);
155 static void fload(int n);
156 static void dload(int n);
157 static void aload(int n);
158 static void aload_0();
160 static void istore();
161 static void lstore();
162 static void fstore();
163 static void dstore();
164 static void astore();
166 static void wide_istore();
167 static void wide_lstore();
168 static void wide_fstore();
169 static void wide_dstore();
170 static void wide_astore();
172 static void iastore();
173 static void lastore();
174 static void fastore();
175 static void dastore();
176 static void aastore();
177 static void bastore();
178 static void castore();
179 static void sastore();
181 static void istore(int n);
182 static void lstore(int n);
183 static void fstore(int n);
184 static void dstore(int n);
185 static void astore(int n);
187 static void pop();
188 static void pop2();
189 static void dup();
190 static void dup_x1();
191 static void dup_x2();
192 static void dup2();
193 static void dup2_x1();
194 static void dup2_x2();
195 static void swap();
197 static void iop2(Operation op);
198 static void lop2(Operation op);
199 static void fop2(Operation op);
200 static void dop2(Operation op);
202 static void idiv();
203 static void irem();
205 static void lmul();
206 static void ldiv();
207 static void lrem();
208 static void lshl();
209 static void lshr();
210 static void lushr();
212 static void ineg();
213 static void lneg();
214 static void fneg();
215 static void dneg();
217 static void iinc();
218 static void wide_iinc();
219 static void convert();
220 static void lcmp();
222 static void float_cmp (bool is_float, int unordered_result);
223 static void float_cmp (int unordered_result);
224 static void double_cmp(int unordered_result);
226 static void count_calls(Register method, Register temp);
227 static void branch(bool is_jsr, bool is_wide);
228 static void if_0cmp (Condition cc);
229 static void if_icmp (Condition cc);
230 static void if_nullcmp(Condition cc);
231 static void if_acmp (Condition cc);
233 static void _goto();
234 static void jsr();
235 static void ret();
236 static void wide_ret();
238 static void goto_w();
239 static void jsr_w();
241 static void tableswitch();
242 static void lookupswitch();
243 static void fast_linearswitch();
244 static void fast_binaryswitch();
246 static void _return(TosState state);
248 static void resolve_cache_and_index(int byte_no, // one of 1,2,11
249 Register result , // either noreg or output for f1/f2
250 Register cache, // output for CP cache
251 Register index, // output for CP index
252 size_t index_size); // one of 1,2,4
253 static void load_invoke_cp_cache_entry(int byte_no,
254 Register method,
255 Register itable_index,
256 Register flags,
257 bool is_invokevirtual,
258 bool is_virtual_final,
259 bool is_invokedynamic);
260 static void load_field_cp_cache_entry(Register obj,
261 Register cache,
262 Register index,
263 Register offset,
264 Register flags,
265 bool is_static);
266 static void invokevirtual(int byte_no);
267 static void invokespecial(int byte_no);
268 static void invokestatic(int byte_no);
269 static void invokeinterface(int byte_no);
270 static void invokedynamic(int byte_no);
271 static void fast_invokevfinal(int byte_no);
273 static void getfield_or_static(int byte_no, bool is_static);
274 static void putfield_or_static(int byte_no, bool is_static);
275 static void getfield(int byte_no);
276 static void putfield(int byte_no);
277 static void getstatic(int byte_no);
278 static void putstatic(int byte_no);
279 static void pop_and_check_object(Register obj);
281 static void _new();
282 static void newarray();
283 static void anewarray();
284 static void arraylength();
285 static void checkcast();
286 static void instanceof();
288 static void athrow();
290 static void monitorenter();
291 static void monitorexit();
293 static void wide();
294 static void multianewarray();
296 static void fast_xaccess(TosState state);
297 static void fast_accessfield(TosState state);
298 static void fast_storefield(TosState state);
300 static void _breakpoint();
302 static void shouldnotreachhere();
304 // jvmti support
305 static void jvmti_post_field_access(Register cache, Register index, bool is_static, bool has_tos);
306 static void jvmti_post_field_mod(Register cache, Register index, bool is_static);
307 static void jvmti_post_fast_field_mod();
309 // debugging of TemplateGenerator
310 static void transition(TosState tos_in, TosState tos_out);// checks if in/out states expected by template generator correspond to table entries
312 // initialization helpers
313 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)( ), char filler );
314 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(int arg ), int arg );
315 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(bool arg ), bool arg );
316 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(TosState tos), TosState tos);
317 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Operation op), Operation op);
318 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Condition cc), Condition cc);
320 friend class Template;
322 // InterpreterMacroAssembler::is_a(), etc., need TemplateTable::call_VM().
323 friend class InterpreterMacroAssembler;
325 public:
326 // Initialization
327 static void initialize();
328 static void pd_initialize();
330 // Templates
331 static Template* template_for (Bytecodes::Code code) { Bytecodes::check (code); return &_template_table [code]; }
332 static Template* template_for_wide(Bytecodes::Code code) { Bytecodes::wide_check(code); return &_template_table_wide[code]; }
334 // Platform specifics
335 #include "incls/_templateTable_pd.hpp.incl"
336 };
337 #endif /* !CC_INTERP */