Mercurial > hg > truffle
annotate src/share/vm/interpreter/bytecodes.cpp @ 17546:46fa2940e686 jdk8u5-b07
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author | asaha |
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date | Sun, 02 Feb 2014 22:45:03 -0800 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/bytecodes.hpp" | |
27 #include "memory/resourceArea.hpp" | |
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28 #include "oops/method.hpp" |
1972 | 29 #ifdef TARGET_ARCH_x86 |
30 # include "bytes_x86.hpp" | |
31 #endif | |
32 #ifdef TARGET_ARCH_sparc | |
33 # include "bytes_sparc.hpp" | |
34 #endif | |
35 #ifdef TARGET_ARCH_zero | |
36 # include "bytes_zero.hpp" | |
37 #endif | |
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38 #ifdef TARGET_ARCH_arm |
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39 # include "bytes_arm.hpp" |
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40 #endif |
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41 #ifdef TARGET_ARCH_ppc |
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42 # include "bytes_ppc.hpp" |
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43 #endif |
0 | 44 |
45 | |
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46 #if defined(WIN32) && (defined(_MSC_VER) && (_MSC_VER < 1600)) |
0 | 47 // Windows AMD64 Compiler Hangs compiling this file |
48 // unless optimization is off | |
49 #ifdef _M_AMD64 | |
50 #pragma optimize ("", off) | |
51 #endif | |
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52 #endif |
0 | 53 |
54 | |
55 bool Bytecodes::_is_initialized = false; | |
56 const char* Bytecodes::_name [Bytecodes::number_of_codes]; | |
57 BasicType Bytecodes::_result_type [Bytecodes::number_of_codes]; | |
58 s_char Bytecodes::_depth [Bytecodes::number_of_codes]; | |
1565 | 59 u_char Bytecodes::_lengths [Bytecodes::number_of_codes]; |
0 | 60 Bytecodes::Code Bytecodes::_java_code [Bytecodes::number_of_codes]; |
1565 | 61 u_short Bytecodes::_flags [(1<<BitsPerByte)*2]; |
0 | 62 |
2142 | 63 #ifdef ASSERT |
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64 bool Bytecodes::check_method(const Method* method, address bcp) { |
2142 | 65 return method->contains(bcp); |
66 } | |
67 #endif | |
68 | |
69 bool Bytecodes::check_must_rewrite(Bytecodes::Code code) { | |
70 assert(can_rewrite(code), "post-check only"); | |
71 | |
72 // Some codes are conditionally rewriting. Look closely at them. | |
73 switch (code) { | |
74 case Bytecodes::_aload_0: | |
75 // Even if RewriteFrequentPairs is turned on, | |
76 // the _aload_0 code might delay its rewrite until | |
77 // a following _getfield rewrites itself. | |
78 return false; | |
79 | |
80 case Bytecodes::_lookupswitch: | |
81 return false; // the rewrite is not done by the interpreter | |
82 | |
83 case Bytecodes::_new: | |
84 // (Could actually look at the class here, but the profit would be small.) | |
85 return false; // the rewrite is not always done | |
86 } | |
87 | |
88 // No other special cases. | |
89 return true; | |
90 } | |
0 | 91 |
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92 Bytecodes::Code Bytecodes::code_at(Method* method, int bci) { |
2142 | 93 return code_at(method, method->bcp_from(bci)); |
0 | 94 } |
95 | |
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96 Bytecodes::Code Bytecodes::non_breakpoint_code_at(const Method* method, address bcp) { |
2142 | 97 assert(method != NULL, "must have the method for breakpoint conversion"); |
98 assert(method->contains(bcp), "must be valid bcp in method"); | |
0 | 99 return method->orig_bytecode_at(method->bci_from(bcp)); |
100 } | |
101 | |
2142 | 102 int Bytecodes::special_length_at(Bytecodes::Code code, address bcp, address end) { |
0 | 103 switch (code) { |
104 case _wide: | |
413
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105 if (end != NULL && bcp + 1 >= end) { |
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106 return -1; // don't read past end of code buffer |
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107 } |
0 | 108 return wide_length_for(cast(*(bcp + 1))); |
109 case _tableswitch: | |
110 { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize); | |
413
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111 if (end != NULL && aligned_bcp + 3*jintSize >= end) { |
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112 return -1; // don't read past end of code buffer |
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113 } |
0 | 114 jlong lo = (jint)Bytes::get_Java_u4(aligned_bcp + 1*jintSize); |
115 jlong hi = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize); | |
116 jlong len = (aligned_bcp - bcp) + (3 + hi - lo + 1)*jintSize; | |
117 // only return len if it can be represented as a positive int; | |
118 // return -1 otherwise | |
119 return (len > 0 && len == (int)len) ? len : -1; | |
120 } | |
121 | |
122 case _lookupswitch: // fall through | |
123 case _fast_binaryswitch: // fall through | |
124 case _fast_linearswitch: | |
125 { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize); | |
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126 if (end != NULL && aligned_bcp + 2*jintSize >= end) { |
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127 return -1; // don't read past end of code buffer |
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128 } |
0 | 129 jlong npairs = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize); |
130 jlong len = (aligned_bcp - bcp) + (2 + 2*npairs)*jintSize; | |
131 // only return len if it can be represented as a positive int; | |
132 // return -1 otherwise | |
133 return (len > 0 && len == (int)len) ? len : -1; | |
134 } | |
135 } | |
1570 | 136 // Note: Length functions must return <=0 for invalid bytecodes. |
0 | 137 return 0; |
138 } | |
139 | |
140 // At a breakpoint instruction, this returns the breakpoint's length, | |
141 // otherwise, it's the same as special_length_at(). This is used by | |
142 // the RawByteCodeStream, which wants to see the actual bytecode | |
143 // values (including breakpoint). RawByteCodeStream is used by the | |
144 // verifier when reading in bytecode to verify. Other mechanisms that | |
145 // run at runtime (such as generateOopMaps) need to iterate over the code | |
146 // and don't expect to see breakpoints: they want to see the instruction | |
413
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147 // which was replaced so that they can get the correct length and find |
0 | 148 // the next bytecode. |
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149 // |
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150 // 'end' indicates the end of the code buffer, which we should not try to read |
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151 // past. |
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152 int Bytecodes::raw_special_length_at(address bcp, address end) { |
0 | 153 Code code = code_or_bp_at(bcp); |
154 if (code == _breakpoint) { | |
155 return 1; | |
156 } else { | |
2142 | 157 return special_length_at(code, bcp, end); |
0 | 158 } |
159 } | |
160 | |
161 | |
162 | |
163 void Bytecodes::def(Code code, const char* name, const char* format, const char* wide_format, BasicType result_type, int depth, bool can_trap) { | |
164 def(code, name, format, wide_format, result_type, depth, can_trap, code); | |
165 } | |
166 | |
167 | |
168 void Bytecodes::def(Code code, const char* name, const char* format, const char* wide_format, BasicType result_type, int depth, bool can_trap, Code java_code) { | |
169 assert(wide_format == NULL || format != NULL, "short form must exist if there's a wide form"); | |
1565 | 170 int len = (format != NULL ? (int) strlen(format) : 0); |
171 int wlen = (wide_format != NULL ? (int) strlen(wide_format) : 0); | |
0 | 172 _name [code] = name; |
173 _result_type [code] = result_type; | |
174 _depth [code] = depth; | |
1565 | 175 _lengths [code] = (wlen << 4) | (len & 0xF); |
0 | 176 _java_code [code] = java_code; |
1565 | 177 int bc_flags = 0; |
178 if (can_trap) bc_flags |= _bc_can_trap; | |
179 if (java_code != code) bc_flags |= _bc_can_rewrite; | |
180 _flags[(u1)code+0*(1<<BitsPerByte)] = compute_flags(format, bc_flags); | |
181 _flags[(u1)code+1*(1<<BitsPerByte)] = compute_flags(wide_format, bc_flags); | |
182 assert(is_defined(code) == (format != NULL), ""); | |
183 assert(wide_is_defined(code) == (wide_format != NULL), ""); | |
184 assert(length_for(code) == len, ""); | |
185 assert(wide_length_for(code) == wlen, ""); | |
0 | 186 } |
187 | |
188 | |
189 // Format strings interpretation: | |
190 // | |
191 // b: bytecode | |
192 // c: signed constant, Java byte-ordering | |
1565 | 193 // i: unsigned local index, Java byte-ordering (I = native byte ordering) |
194 // j: unsigned CP cache index, Java byte-ordering (J = native byte ordering) | |
195 // k: unsigned CP index, Java byte-ordering | |
196 // o: branch offset, Java byte-ordering | |
0 | 197 // _: unused/ignored |
198 // w: wide bytecode | |
199 // | |
1565 | 200 // Note: The format strings are used for 2 purposes: |
0 | 201 // 1. to specify the length of the bytecode |
202 // (= number of characters in format string) | |
1565 | 203 // 2. to derive bytecode format flags (_fmt_has_k, etc.) |
0 | 204 // |
205 // Note: For bytecodes with variable length, the format string is the empty string. | |
206 | |
1565 | 207 int Bytecodes::compute_flags(const char* format, int more_flags) { |
208 if (format == NULL) return 0; // not even more_flags | |
209 int flags = more_flags; | |
210 const char* fp = format; | |
211 switch (*fp) { | |
212 case '\0': | |
213 flags |= _fmt_not_simple; // but variable | |
214 break; | |
215 case 'b': | |
216 flags |= _fmt_not_variable; // but simple | |
217 ++fp; // skip 'b' | |
218 break; | |
219 case 'w': | |
220 flags |= _fmt_not_variable | _fmt_not_simple; | |
221 ++fp; // skip 'w' | |
222 guarantee(*fp == 'b', "wide format must start with 'wb'"); | |
223 ++fp; // skip 'b' | |
224 break; | |
225 } | |
226 | |
227 int has_nbo = 0, has_jbo = 0, has_size = 0; | |
228 for (;;) { | |
229 int this_flag = 0; | |
230 char fc = *fp++; | |
231 switch (fc) { | |
232 case '\0': // end of string | |
233 assert(flags == (jchar)flags, "change _format_flags"); | |
234 return flags; | |
235 | |
236 case '_': continue; // ignore these | |
237 | |
238 case 'j': this_flag = _fmt_has_j; has_jbo = 1; break; | |
239 case 'k': this_flag = _fmt_has_k; has_jbo = 1; break; | |
240 case 'i': this_flag = _fmt_has_i; has_jbo = 1; break; | |
241 case 'c': this_flag = _fmt_has_c; has_jbo = 1; break; | |
242 case 'o': this_flag = _fmt_has_o; has_jbo = 1; break; | |
243 | |
244 // uppercase versions mark native byte order (from Rewriter) | |
245 // actually, only the 'J' case happens currently | |
246 case 'J': this_flag = _fmt_has_j; has_nbo = 1; break; | |
247 case 'K': this_flag = _fmt_has_k; has_nbo = 1; break; | |
248 case 'I': this_flag = _fmt_has_i; has_nbo = 1; break; | |
249 case 'C': this_flag = _fmt_has_c; has_nbo = 1; break; | |
250 case 'O': this_flag = _fmt_has_o; has_nbo = 1; break; | |
251 default: guarantee(false, "bad char in format"); | |
252 } | |
253 | |
254 flags |= this_flag; | |
255 | |
256 guarantee(!(has_jbo && has_nbo), "mixed byte orders in format"); | |
257 if (has_nbo) | |
258 flags |= _fmt_has_nbo; | |
259 | |
260 int this_size = 1; | |
261 if (*fp == fc) { | |
262 // advance beyond run of the same characters | |
263 this_size = 2; | |
264 while (*++fp == fc) this_size++; | |
265 switch (this_size) { | |
266 case 2: flags |= _fmt_has_u2; break; | |
267 case 4: flags |= _fmt_has_u4; break; | |
268 default: guarantee(false, "bad rep count in format"); | |
269 } | |
270 } | |
271 guarantee(has_size == 0 || // no field yet | |
272 this_size == has_size || // same size | |
273 this_size < has_size && *fp == '\0', // last field can be short | |
274 "mixed field sizes in format"); | |
275 has_size = this_size; | |
276 } | |
277 } | |
278 | |
0 | 279 void Bytecodes::initialize() { |
280 if (_is_initialized) return; | |
281 assert(number_of_codes <= 256, "too many bytecodes"); | |
282 | |
283 // initialize bytecode tables - didn't use static array initializers | |
284 // (such as {}) so we can do additional consistency checks and init- | |
285 // code is independent of actual bytecode numbering. | |
286 // | |
287 // Note 1: NULL for the format string means the bytecode doesn't exist | |
288 // in that form. | |
289 // | |
290 // Note 2: The result type is T_ILLEGAL for bytecodes where the top of stack | |
291 // type after execution is not only determined by the bytecode itself. | |
292 | |
293 // Java bytecodes | |
294 // bytecode bytecode name format wide f. result tp stk traps | |
295 def(_nop , "nop" , "b" , NULL , T_VOID , 0, false); | |
296 def(_aconst_null , "aconst_null" , "b" , NULL , T_OBJECT , 1, false); | |
297 def(_iconst_m1 , "iconst_m1" , "b" , NULL , T_INT , 1, false); | |
298 def(_iconst_0 , "iconst_0" , "b" , NULL , T_INT , 1, false); | |
299 def(_iconst_1 , "iconst_1" , "b" , NULL , T_INT , 1, false); | |
300 def(_iconst_2 , "iconst_2" , "b" , NULL , T_INT , 1, false); | |
301 def(_iconst_3 , "iconst_3" , "b" , NULL , T_INT , 1, false); | |
302 def(_iconst_4 , "iconst_4" , "b" , NULL , T_INT , 1, false); | |
303 def(_iconst_5 , "iconst_5" , "b" , NULL , T_INT , 1, false); | |
304 def(_lconst_0 , "lconst_0" , "b" , NULL , T_LONG , 2, false); | |
305 def(_lconst_1 , "lconst_1" , "b" , NULL , T_LONG , 2, false); | |
306 def(_fconst_0 , "fconst_0" , "b" , NULL , T_FLOAT , 1, false); | |
307 def(_fconst_1 , "fconst_1" , "b" , NULL , T_FLOAT , 1, false); | |
308 def(_fconst_2 , "fconst_2" , "b" , NULL , T_FLOAT , 1, false); | |
309 def(_dconst_0 , "dconst_0" , "b" , NULL , T_DOUBLE , 2, false); | |
310 def(_dconst_1 , "dconst_1" , "b" , NULL , T_DOUBLE , 2, false); | |
311 def(_bipush , "bipush" , "bc" , NULL , T_INT , 1, false); | |
312 def(_sipush , "sipush" , "bcc" , NULL , T_INT , 1, false); | |
1565 | 313 def(_ldc , "ldc" , "bk" , NULL , T_ILLEGAL, 1, true ); |
314 def(_ldc_w , "ldc_w" , "bkk" , NULL , T_ILLEGAL, 1, true ); | |
315 def(_ldc2_w , "ldc2_w" , "bkk" , NULL , T_ILLEGAL, 2, true ); | |
0 | 316 def(_iload , "iload" , "bi" , "wbii" , T_INT , 1, false); |
317 def(_lload , "lload" , "bi" , "wbii" , T_LONG , 2, false); | |
318 def(_fload , "fload" , "bi" , "wbii" , T_FLOAT , 1, false); | |
319 def(_dload , "dload" , "bi" , "wbii" , T_DOUBLE , 2, false); | |
320 def(_aload , "aload" , "bi" , "wbii" , T_OBJECT , 1, false); | |
321 def(_iload_0 , "iload_0" , "b" , NULL , T_INT , 1, false); | |
322 def(_iload_1 , "iload_1" , "b" , NULL , T_INT , 1, false); | |
323 def(_iload_2 , "iload_2" , "b" , NULL , T_INT , 1, false); | |
324 def(_iload_3 , "iload_3" , "b" , NULL , T_INT , 1, false); | |
325 def(_lload_0 , "lload_0" , "b" , NULL , T_LONG , 2, false); | |
326 def(_lload_1 , "lload_1" , "b" , NULL , T_LONG , 2, false); | |
327 def(_lload_2 , "lload_2" , "b" , NULL , T_LONG , 2, false); | |
328 def(_lload_3 , "lload_3" , "b" , NULL , T_LONG , 2, false); | |
329 def(_fload_0 , "fload_0" , "b" , NULL , T_FLOAT , 1, false); | |
330 def(_fload_1 , "fload_1" , "b" , NULL , T_FLOAT , 1, false); | |
331 def(_fload_2 , "fload_2" , "b" , NULL , T_FLOAT , 1, false); | |
332 def(_fload_3 , "fload_3" , "b" , NULL , T_FLOAT , 1, false); | |
333 def(_dload_0 , "dload_0" , "b" , NULL , T_DOUBLE , 2, false); | |
334 def(_dload_1 , "dload_1" , "b" , NULL , T_DOUBLE , 2, false); | |
335 def(_dload_2 , "dload_2" , "b" , NULL , T_DOUBLE , 2, false); | |
336 def(_dload_3 , "dload_3" , "b" , NULL , T_DOUBLE , 2, false); | |
337 def(_aload_0 , "aload_0" , "b" , NULL , T_OBJECT , 1, true ); // rewriting in interpreter | |
338 def(_aload_1 , "aload_1" , "b" , NULL , T_OBJECT , 1, false); | |
339 def(_aload_2 , "aload_2" , "b" , NULL , T_OBJECT , 1, false); | |
340 def(_aload_3 , "aload_3" , "b" , NULL , T_OBJECT , 1, false); | |
341 def(_iaload , "iaload" , "b" , NULL , T_INT , -1, true ); | |
342 def(_laload , "laload" , "b" , NULL , T_LONG , 0, true ); | |
343 def(_faload , "faload" , "b" , NULL , T_FLOAT , -1, true ); | |
344 def(_daload , "daload" , "b" , NULL , T_DOUBLE , 0, true ); | |
345 def(_aaload , "aaload" , "b" , NULL , T_OBJECT , -1, true ); | |
346 def(_baload , "baload" , "b" , NULL , T_INT , -1, true ); | |
347 def(_caload , "caload" , "b" , NULL , T_INT , -1, true ); | |
348 def(_saload , "saload" , "b" , NULL , T_INT , -1, true ); | |
349 def(_istore , "istore" , "bi" , "wbii" , T_VOID , -1, false); | |
350 def(_lstore , "lstore" , "bi" , "wbii" , T_VOID , -2, false); | |
351 def(_fstore , "fstore" , "bi" , "wbii" , T_VOID , -1, false); | |
352 def(_dstore , "dstore" , "bi" , "wbii" , T_VOID , -2, false); | |
353 def(_astore , "astore" , "bi" , "wbii" , T_VOID , -1, false); | |
354 def(_istore_0 , "istore_0" , "b" , NULL , T_VOID , -1, false); | |
355 def(_istore_1 , "istore_1" , "b" , NULL , T_VOID , -1, false); | |
356 def(_istore_2 , "istore_2" , "b" , NULL , T_VOID , -1, false); | |
357 def(_istore_3 , "istore_3" , "b" , NULL , T_VOID , -1, false); | |
358 def(_lstore_0 , "lstore_0" , "b" , NULL , T_VOID , -2, false); | |
359 def(_lstore_1 , "lstore_1" , "b" , NULL , T_VOID , -2, false); | |
360 def(_lstore_2 , "lstore_2" , "b" , NULL , T_VOID , -2, false); | |
361 def(_lstore_3 , "lstore_3" , "b" , NULL , T_VOID , -2, false); | |
362 def(_fstore_0 , "fstore_0" , "b" , NULL , T_VOID , -1, false); | |
363 def(_fstore_1 , "fstore_1" , "b" , NULL , T_VOID , -1, false); | |
364 def(_fstore_2 , "fstore_2" , "b" , NULL , T_VOID , -1, false); | |
365 def(_fstore_3 , "fstore_3" , "b" , NULL , T_VOID , -1, false); | |
366 def(_dstore_0 , "dstore_0" , "b" , NULL , T_VOID , -2, false); | |
367 def(_dstore_1 , "dstore_1" , "b" , NULL , T_VOID , -2, false); | |
368 def(_dstore_2 , "dstore_2" , "b" , NULL , T_VOID , -2, false); | |
369 def(_dstore_3 , "dstore_3" , "b" , NULL , T_VOID , -2, false); | |
370 def(_astore_0 , "astore_0" , "b" , NULL , T_VOID , -1, false); | |
371 def(_astore_1 , "astore_1" , "b" , NULL , T_VOID , -1, false); | |
372 def(_astore_2 , "astore_2" , "b" , NULL , T_VOID , -1, false); | |
373 def(_astore_3 , "astore_3" , "b" , NULL , T_VOID , -1, false); | |
374 def(_iastore , "iastore" , "b" , NULL , T_VOID , -3, true ); | |
375 def(_lastore , "lastore" , "b" , NULL , T_VOID , -4, true ); | |
376 def(_fastore , "fastore" , "b" , NULL , T_VOID , -3, true ); | |
377 def(_dastore , "dastore" , "b" , NULL , T_VOID , -4, true ); | |
378 def(_aastore , "aastore" , "b" , NULL , T_VOID , -3, true ); | |
379 def(_bastore , "bastore" , "b" , NULL , T_VOID , -3, true ); | |
380 def(_castore , "castore" , "b" , NULL , T_VOID , -3, true ); | |
381 def(_sastore , "sastore" , "b" , NULL , T_VOID , -3, true ); | |
382 def(_pop , "pop" , "b" , NULL , T_VOID , -1, false); | |
383 def(_pop2 , "pop2" , "b" , NULL , T_VOID , -2, false); | |
384 def(_dup , "dup" , "b" , NULL , T_VOID , 1, false); | |
385 def(_dup_x1 , "dup_x1" , "b" , NULL , T_VOID , 1, false); | |
386 def(_dup_x2 , "dup_x2" , "b" , NULL , T_VOID , 1, false); | |
387 def(_dup2 , "dup2" , "b" , NULL , T_VOID , 2, false); | |
388 def(_dup2_x1 , "dup2_x1" , "b" , NULL , T_VOID , 2, false); | |
389 def(_dup2_x2 , "dup2_x2" , "b" , NULL , T_VOID , 2, false); | |
390 def(_swap , "swap" , "b" , NULL , T_VOID , 0, false); | |
391 def(_iadd , "iadd" , "b" , NULL , T_INT , -1, false); | |
392 def(_ladd , "ladd" , "b" , NULL , T_LONG , -2, false); | |
393 def(_fadd , "fadd" , "b" , NULL , T_FLOAT , -1, false); | |
394 def(_dadd , "dadd" , "b" , NULL , T_DOUBLE , -2, false); | |
395 def(_isub , "isub" , "b" , NULL , T_INT , -1, false); | |
396 def(_lsub , "lsub" , "b" , NULL , T_LONG , -2, false); | |
397 def(_fsub , "fsub" , "b" , NULL , T_FLOAT , -1, false); | |
398 def(_dsub , "dsub" , "b" , NULL , T_DOUBLE , -2, false); | |
399 def(_imul , "imul" , "b" , NULL , T_INT , -1, false); | |
400 def(_lmul , "lmul" , "b" , NULL , T_LONG , -2, false); | |
401 def(_fmul , "fmul" , "b" , NULL , T_FLOAT , -1, false); | |
402 def(_dmul , "dmul" , "b" , NULL , T_DOUBLE , -2, false); | |
403 def(_idiv , "idiv" , "b" , NULL , T_INT , -1, true ); | |
404 def(_ldiv , "ldiv" , "b" , NULL , T_LONG , -2, true ); | |
405 def(_fdiv , "fdiv" , "b" , NULL , T_FLOAT , -1, false); | |
406 def(_ddiv , "ddiv" , "b" , NULL , T_DOUBLE , -2, false); | |
407 def(_irem , "irem" , "b" , NULL , T_INT , -1, true ); | |
408 def(_lrem , "lrem" , "b" , NULL , T_LONG , -2, true ); | |
409 def(_frem , "frem" , "b" , NULL , T_FLOAT , -1, false); | |
410 def(_drem , "drem" , "b" , NULL , T_DOUBLE , -2, false); | |
411 def(_ineg , "ineg" , "b" , NULL , T_INT , 0, false); | |
412 def(_lneg , "lneg" , "b" , NULL , T_LONG , 0, false); | |
413 def(_fneg , "fneg" , "b" , NULL , T_FLOAT , 0, false); | |
414 def(_dneg , "dneg" , "b" , NULL , T_DOUBLE , 0, false); | |
415 def(_ishl , "ishl" , "b" , NULL , T_INT , -1, false); | |
416 def(_lshl , "lshl" , "b" , NULL , T_LONG , -1, false); | |
417 def(_ishr , "ishr" , "b" , NULL , T_INT , -1, false); | |
418 def(_lshr , "lshr" , "b" , NULL , T_LONG , -1, false); | |
419 def(_iushr , "iushr" , "b" , NULL , T_INT , -1, false); | |
420 def(_lushr , "lushr" , "b" , NULL , T_LONG , -1, false); | |
421 def(_iand , "iand" , "b" , NULL , T_INT , -1, false); | |
422 def(_land , "land" , "b" , NULL , T_LONG , -2, false); | |
423 def(_ior , "ior" , "b" , NULL , T_INT , -1, false); | |
424 def(_lor , "lor" , "b" , NULL , T_LONG , -2, false); | |
425 def(_ixor , "ixor" , "b" , NULL , T_INT , -1, false); | |
426 def(_lxor , "lxor" , "b" , NULL , T_LONG , -2, false); | |
427 def(_iinc , "iinc" , "bic" , "wbiicc", T_VOID , 0, false); | |
428 def(_i2l , "i2l" , "b" , NULL , T_LONG , 1, false); | |
429 def(_i2f , "i2f" , "b" , NULL , T_FLOAT , 0, false); | |
430 def(_i2d , "i2d" , "b" , NULL , T_DOUBLE , 1, false); | |
431 def(_l2i , "l2i" , "b" , NULL , T_INT , -1, false); | |
432 def(_l2f , "l2f" , "b" , NULL , T_FLOAT , -1, false); | |
433 def(_l2d , "l2d" , "b" , NULL , T_DOUBLE , 0, false); | |
434 def(_f2i , "f2i" , "b" , NULL , T_INT , 0, false); | |
435 def(_f2l , "f2l" , "b" , NULL , T_LONG , 1, false); | |
436 def(_f2d , "f2d" , "b" , NULL , T_DOUBLE , 1, false); | |
437 def(_d2i , "d2i" , "b" , NULL , T_INT , -1, false); | |
438 def(_d2l , "d2l" , "b" , NULL , T_LONG , 0, false); | |
439 def(_d2f , "d2f" , "b" , NULL , T_FLOAT , -1, false); | |
440 def(_i2b , "i2b" , "b" , NULL , T_BYTE , 0, false); | |
441 def(_i2c , "i2c" , "b" , NULL , T_CHAR , 0, false); | |
442 def(_i2s , "i2s" , "b" , NULL , T_SHORT , 0, false); | |
443 def(_lcmp , "lcmp" , "b" , NULL , T_VOID , -3, false); | |
444 def(_fcmpl , "fcmpl" , "b" , NULL , T_VOID , -1, false); | |
445 def(_fcmpg , "fcmpg" , "b" , NULL , T_VOID , -1, false); | |
446 def(_dcmpl , "dcmpl" , "b" , NULL , T_VOID , -3, false); | |
447 def(_dcmpg , "dcmpg" , "b" , NULL , T_VOID , -3, false); | |
448 def(_ifeq , "ifeq" , "boo" , NULL , T_VOID , -1, false); | |
449 def(_ifne , "ifne" , "boo" , NULL , T_VOID , -1, false); | |
450 def(_iflt , "iflt" , "boo" , NULL , T_VOID , -1, false); | |
451 def(_ifge , "ifge" , "boo" , NULL , T_VOID , -1, false); | |
452 def(_ifgt , "ifgt" , "boo" , NULL , T_VOID , -1, false); | |
453 def(_ifle , "ifle" , "boo" , NULL , T_VOID , -1, false); | |
454 def(_if_icmpeq , "if_icmpeq" , "boo" , NULL , T_VOID , -2, false); | |
455 def(_if_icmpne , "if_icmpne" , "boo" , NULL , T_VOID , -2, false); | |
456 def(_if_icmplt , "if_icmplt" , "boo" , NULL , T_VOID , -2, false); | |
457 def(_if_icmpge , "if_icmpge" , "boo" , NULL , T_VOID , -2, false); | |
458 def(_if_icmpgt , "if_icmpgt" , "boo" , NULL , T_VOID , -2, false); | |
459 def(_if_icmple , "if_icmple" , "boo" , NULL , T_VOID , -2, false); | |
460 def(_if_acmpeq , "if_acmpeq" , "boo" , NULL , T_VOID , -2, false); | |
461 def(_if_acmpne , "if_acmpne" , "boo" , NULL , T_VOID , -2, false); | |
462 def(_goto , "goto" , "boo" , NULL , T_VOID , 0, false); | |
463 def(_jsr , "jsr" , "boo" , NULL , T_INT , 0, false); | |
464 def(_ret , "ret" , "bi" , "wbii" , T_VOID , 0, false); | |
465 def(_tableswitch , "tableswitch" , "" , NULL , T_VOID , -1, false); // may have backward branches | |
466 def(_lookupswitch , "lookupswitch" , "" , NULL , T_VOID , -1, false); // rewriting in interpreter | |
467 def(_ireturn , "ireturn" , "b" , NULL , T_INT , -1, true); | |
468 def(_lreturn , "lreturn" , "b" , NULL , T_LONG , -2, true); | |
469 def(_freturn , "freturn" , "b" , NULL , T_FLOAT , -1, true); | |
470 def(_dreturn , "dreturn" , "b" , NULL , T_DOUBLE , -2, true); | |
471 def(_areturn , "areturn" , "b" , NULL , T_OBJECT , -1, true); | |
472 def(_return , "return" , "b" , NULL , T_VOID , 0, true); | |
1565 | 473 def(_getstatic , "getstatic" , "bJJ" , NULL , T_ILLEGAL, 1, true ); |
474 def(_putstatic , "putstatic" , "bJJ" , NULL , T_ILLEGAL, -1, true ); | |
475 def(_getfield , "getfield" , "bJJ" , NULL , T_ILLEGAL, 0, true ); | |
476 def(_putfield , "putfield" , "bJJ" , NULL , T_ILLEGAL, -2, true ); | |
477 def(_invokevirtual , "invokevirtual" , "bJJ" , NULL , T_ILLEGAL, -1, true); | |
478 def(_invokespecial , "invokespecial" , "bJJ" , NULL , T_ILLEGAL, -1, true); | |
479 def(_invokestatic , "invokestatic" , "bJJ" , NULL , T_ILLEGAL, 0, true); | |
480 def(_invokeinterface , "invokeinterface" , "bJJ__", NULL , T_ILLEGAL, -1, true); | |
481 def(_invokedynamic , "invokedynamic" , "bJJJJ", NULL , T_ILLEGAL, 0, true ); | |
482 def(_new , "new" , "bkk" , NULL , T_OBJECT , 1, true ); | |
0 | 483 def(_newarray , "newarray" , "bc" , NULL , T_OBJECT , 0, true ); |
1565 | 484 def(_anewarray , "anewarray" , "bkk" , NULL , T_OBJECT , 0, true ); |
0 | 485 def(_arraylength , "arraylength" , "b" , NULL , T_VOID , 0, true ); |
486 def(_athrow , "athrow" , "b" , NULL , T_VOID , -1, true ); | |
1565 | 487 def(_checkcast , "checkcast" , "bkk" , NULL , T_OBJECT , 0, true ); |
488 def(_instanceof , "instanceof" , "bkk" , NULL , T_INT , 0, true ); | |
0 | 489 def(_monitorenter , "monitorenter" , "b" , NULL , T_VOID , -1, true ); |
490 def(_monitorexit , "monitorexit" , "b" , NULL , T_VOID , -1, true ); | |
491 def(_wide , "wide" , "" , NULL , T_VOID , 0, false); | |
1565 | 492 def(_multianewarray , "multianewarray" , "bkkc" , NULL , T_OBJECT , 1, true ); |
0 | 493 def(_ifnull , "ifnull" , "boo" , NULL , T_VOID , -1, false); |
494 def(_ifnonnull , "ifnonnull" , "boo" , NULL , T_VOID , -1, false); | |
495 def(_goto_w , "goto_w" , "boooo", NULL , T_VOID , 0, false); | |
496 def(_jsr_w , "jsr_w" , "boooo", NULL , T_INT , 0, false); | |
497 def(_breakpoint , "breakpoint" , "" , NULL , T_VOID , 0, true); | |
498 | |
499 // JVM bytecodes | |
500 // bytecode bytecode name format wide f. result tp stk traps std code | |
501 | |
1565 | 502 def(_fast_agetfield , "fast_agetfield" , "bJJ" , NULL , T_OBJECT , 0, true , _getfield ); |
503 def(_fast_bgetfield , "fast_bgetfield" , "bJJ" , NULL , T_INT , 0, true , _getfield ); | |
504 def(_fast_cgetfield , "fast_cgetfield" , "bJJ" , NULL , T_CHAR , 0, true , _getfield ); | |
505 def(_fast_dgetfield , "fast_dgetfield" , "bJJ" , NULL , T_DOUBLE , 0, true , _getfield ); | |
506 def(_fast_fgetfield , "fast_fgetfield" , "bJJ" , NULL , T_FLOAT , 0, true , _getfield ); | |
507 def(_fast_igetfield , "fast_igetfield" , "bJJ" , NULL , T_INT , 0, true , _getfield ); | |
508 def(_fast_lgetfield , "fast_lgetfield" , "bJJ" , NULL , T_LONG , 0, true , _getfield ); | |
509 def(_fast_sgetfield , "fast_sgetfield" , "bJJ" , NULL , T_SHORT , 0, true , _getfield ); | |
0 | 510 |
1565 | 511 def(_fast_aputfield , "fast_aputfield" , "bJJ" , NULL , T_OBJECT , 0, true , _putfield ); |
512 def(_fast_bputfield , "fast_bputfield" , "bJJ" , NULL , T_INT , 0, true , _putfield ); | |
513 def(_fast_cputfield , "fast_cputfield" , "bJJ" , NULL , T_CHAR , 0, true , _putfield ); | |
514 def(_fast_dputfield , "fast_dputfield" , "bJJ" , NULL , T_DOUBLE , 0, true , _putfield ); | |
515 def(_fast_fputfield , "fast_fputfield" , "bJJ" , NULL , T_FLOAT , 0, true , _putfield ); | |
516 def(_fast_iputfield , "fast_iputfield" , "bJJ" , NULL , T_INT , 0, true , _putfield ); | |
517 def(_fast_lputfield , "fast_lputfield" , "bJJ" , NULL , T_LONG , 0, true , _putfield ); | |
518 def(_fast_sputfield , "fast_sputfield" , "bJJ" , NULL , T_SHORT , 0, true , _putfield ); | |
0 | 519 |
520 def(_fast_aload_0 , "fast_aload_0" , "b" , NULL , T_OBJECT , 1, true , _aload_0 ); | |
1565 | 521 def(_fast_iaccess_0 , "fast_iaccess_0" , "b_JJ" , NULL , T_INT , 1, true , _aload_0 ); |
522 def(_fast_aaccess_0 , "fast_aaccess_0" , "b_JJ" , NULL , T_OBJECT , 1, true , _aload_0 ); | |
523 def(_fast_faccess_0 , "fast_faccess_0" , "b_JJ" , NULL , T_OBJECT , 1, true , _aload_0 ); | |
0 | 524 |
525 def(_fast_iload , "fast_iload" , "bi" , NULL , T_INT , 1, false, _iload); | |
526 def(_fast_iload2 , "fast_iload2" , "bi_i" , NULL , T_INT , 2, false, _iload); | |
527 def(_fast_icaload , "fast_icaload" , "bi_" , NULL , T_INT , 0, false, _iload); | |
528 | |
529 // Faster method invocation. | |
1565 | 530 def(_fast_invokevfinal , "fast_invokevfinal" , "bJJ" , NULL , T_ILLEGAL, -1, true, _invokevirtual ); |
0 | 531 |
532 def(_fast_linearswitch , "fast_linearswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch ); | |
533 def(_fast_binaryswitch , "fast_binaryswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch ); | |
534 | |
535 def(_return_register_finalizer , "return_register_finalizer" , "b" , NULL , T_VOID , 0, true, _return); | |
536 | |
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537 def(_invokehandle , "invokehandle" , "bJJ" , NULL , T_ILLEGAL, -1, true, _invokevirtual ); |
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538 |
1602 | 539 def(_fast_aldc , "fast_aldc" , "bj" , NULL , T_OBJECT, 1, true, _ldc ); |
540 def(_fast_aldc_w , "fast_aldc_w" , "bJJ" , NULL , T_OBJECT, 1, true, _ldc_w ); | |
541 | |
0 | 542 def(_shouldnotreachhere , "_shouldnotreachhere" , "b" , NULL , T_VOID , 0, false); |
543 | |
544 // platform specific JVM bytecodes | |
545 pd_initialize(); | |
546 | |
547 // compare can_trap information for each bytecode with the | |
548 // can_trap information for the corresponding base bytecode | |
549 // (if a rewritten bytecode can trap, so must the base bytecode) | |
550 #ifdef ASSERT | |
551 { for (int i = 0; i < number_of_codes; i++) { | |
552 if (is_defined(i)) { | |
553 Code code = cast(i); | |
554 Code java = java_code(code); | |
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555 if (can_trap(code) && !can_trap(java)) |
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556 fatal(err_msg("%s can trap => %s can trap, too", name(code), |
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557 name(java))); |
0 | 558 } |
559 } | |
560 } | |
561 #endif | |
562 | |
563 // initialization successful | |
564 _is_initialized = true; | |
565 } | |
566 | |
567 | |
568 void bytecodes_init() { | |
569 Bytecodes::initialize(); | |
570 } | |
571 | |
572 // Restore optimization | |
573 #ifdef _M_AMD64 | |
574 #pragma optimize ("", on) | |
575 #endif |