bytecodes.cpp revision 844:bd02caa94611
1/* 2 * Copyright 1997-2009 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#include "incls/_precompiled.incl" 26#include "incls/_bytecodes.cpp.incl" 27 28 29// Windows AMD64 Compiler Hangs compiling this file 30// unless optimization is off 31#ifdef _M_AMD64 32#pragma optimize ("", off) 33#endif 34 35 36bool Bytecodes::_is_initialized = false; 37const char* Bytecodes::_name [Bytecodes::number_of_codes]; 38const char* Bytecodes::_format [Bytecodes::number_of_codes]; 39const char* Bytecodes::_wide_format [Bytecodes::number_of_codes]; 40BasicType Bytecodes::_result_type [Bytecodes::number_of_codes]; 41s_char Bytecodes::_depth [Bytecodes::number_of_codes]; 42u_char Bytecodes::_length [Bytecodes::number_of_codes]; 43bool Bytecodes::_can_trap [Bytecodes::number_of_codes]; 44Bytecodes::Code Bytecodes::_java_code [Bytecodes::number_of_codes]; 45bool Bytecodes::_can_rewrite [Bytecodes::number_of_codes]; 46 47 48Bytecodes::Code Bytecodes::code_at(methodOop method, int bci) { 49 return code_at(method->bcp_from(bci), method); 50} 51 52Bytecodes::Code Bytecodes::non_breakpoint_code_at(address bcp, methodOop method) { 53 if (method == NULL) method = methodOopDesc::method_from_bcp(bcp); 54 return method->orig_bytecode_at(method->bci_from(bcp)); 55} 56 57int Bytecodes::special_length_at(address bcp, address end) { 58 Code code = code_at(bcp); 59 switch (code) { 60 case _wide: 61 if (end != NULL && bcp + 1 >= end) { 62 return -1; // don't read past end of code buffer 63 } 64 return wide_length_for(cast(*(bcp + 1))); 65 case _tableswitch: 66 { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize); 67 if (end != NULL && aligned_bcp + 3*jintSize >= end) { 68 return -1; // don't read past end of code buffer 69 } 70 jlong lo = (jint)Bytes::get_Java_u4(aligned_bcp + 1*jintSize); 71 jlong hi = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize); 72 jlong len = (aligned_bcp - bcp) + (3 + hi - lo + 1)*jintSize; 73 // only return len if it can be represented as a positive int; 74 // return -1 otherwise 75 return (len > 0 && len == (int)len) ? len : -1; 76 } 77 78 case _lookupswitch: // fall through 79 case _fast_binaryswitch: // fall through 80 case _fast_linearswitch: 81 { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize); 82 if (end != NULL && aligned_bcp + 2*jintSize >= end) { 83 return -1; // don't read past end of code buffer 84 } 85 jlong npairs = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize); 86 jlong len = (aligned_bcp - bcp) + (2 + 2*npairs)*jintSize; 87 // only return len if it can be represented as a positive int; 88 // return -1 otherwise 89 return (len > 0 && len == (int)len) ? len : -1; 90 } 91 } 92 return 0; 93} 94 95// At a breakpoint instruction, this returns the breakpoint's length, 96// otherwise, it's the same as special_length_at(). This is used by 97// the RawByteCodeStream, which wants to see the actual bytecode 98// values (including breakpoint). RawByteCodeStream is used by the 99// verifier when reading in bytecode to verify. Other mechanisms that 100// run at runtime (such as generateOopMaps) need to iterate over the code 101// and don't expect to see breakpoints: they want to see the instruction 102// which was replaced so that they can get the correct length and find 103// the next bytecode. 104// 105// 'end' indicates the end of the code buffer, which we should not try to read 106// past. 107int Bytecodes::raw_special_length_at(address bcp, address end) { 108 Code code = code_or_bp_at(bcp); 109 if (code == _breakpoint) { 110 return 1; 111 } else { 112 return special_length_at(bcp, end); 113 } 114} 115 116 117 118void Bytecodes::def(Code code, const char* name, const char* format, const char* wide_format, BasicType result_type, int depth, bool can_trap) { 119 def(code, name, format, wide_format, result_type, depth, can_trap, code); 120} 121 122 123void 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) { 124 assert(wide_format == NULL || format != NULL, "short form must exist if there's a wide form"); 125 _name [code] = name; 126 _format [code] = format; 127 _wide_format [code] = wide_format; 128 _result_type [code] = result_type; 129 _depth [code] = depth; 130 _can_trap [code] = can_trap; 131 _length [code] = format != NULL ? (u_char)strlen(format) : 0; 132 _java_code [code] = java_code; 133 if (java_code != code) _can_rewrite[java_code] = true; 134} 135 136 137// Format strings interpretation: 138// 139// b: bytecode 140// c: signed constant, Java byte-ordering 141// i: unsigned index , Java byte-ordering 142// j: unsigned index , native byte-ordering 143// o: branch offset , Java byte-ordering 144// _: unused/ignored 145// w: wide bytecode 146// 147// Note: Right now the format strings are used for 2 purposes: 148// 1. to specify the length of the bytecode 149// (= number of characters in format string) 150// 2. to specify the bytecode attributes 151// 152// The bytecode attributes are currently used only for bytecode tracing 153// (see BytecodeTracer); thus if more specific format information is 154// used, one would also have to adjust the bytecode tracer. 155// 156// Note: For bytecodes with variable length, the format string is the empty string. 157 158void Bytecodes::initialize() { 159 if (_is_initialized) return; 160 assert(number_of_codes <= 256, "too many bytecodes"); 161 162 // initialize bytecode tables - didn't use static array initializers 163 // (such as {}) so we can do additional consistency checks and init- 164 // code is independent of actual bytecode numbering. 165 // 166 // Note 1: NULL for the format string means the bytecode doesn't exist 167 // in that form. 168 // 169 // Note 2: The result type is T_ILLEGAL for bytecodes where the top of stack 170 // type after execution is not only determined by the bytecode itself. 171 172 // Java bytecodes 173 // bytecode bytecode name format wide f. result tp stk traps 174 def(_nop , "nop" , "b" , NULL , T_VOID , 0, false); 175 def(_aconst_null , "aconst_null" , "b" , NULL , T_OBJECT , 1, false); 176 def(_iconst_m1 , "iconst_m1" , "b" , NULL , T_INT , 1, false); 177 def(_iconst_0 , "iconst_0" , "b" , NULL , T_INT , 1, false); 178 def(_iconst_1 , "iconst_1" , "b" , NULL , T_INT , 1, false); 179 def(_iconst_2 , "iconst_2" , "b" , NULL , T_INT , 1, false); 180 def(_iconst_3 , "iconst_3" , "b" , NULL , T_INT , 1, false); 181 def(_iconst_4 , "iconst_4" , "b" , NULL , T_INT , 1, false); 182 def(_iconst_5 , "iconst_5" , "b" , NULL , T_INT , 1, false); 183 def(_lconst_0 , "lconst_0" , "b" , NULL , T_LONG , 2, false); 184 def(_lconst_1 , "lconst_1" , "b" , NULL , T_LONG , 2, false); 185 def(_fconst_0 , "fconst_0" , "b" , NULL , T_FLOAT , 1, false); 186 def(_fconst_1 , "fconst_1" , "b" , NULL , T_FLOAT , 1, false); 187 def(_fconst_2 , "fconst_2" , "b" , NULL , T_FLOAT , 1, false); 188 def(_dconst_0 , "dconst_0" , "b" , NULL , T_DOUBLE , 2, false); 189 def(_dconst_1 , "dconst_1" , "b" , NULL , T_DOUBLE , 2, false); 190 def(_bipush , "bipush" , "bc" , NULL , T_INT , 1, false); 191 def(_sipush , "sipush" , "bcc" , NULL , T_INT , 1, false); 192 def(_ldc , "ldc" , "bi" , NULL , T_ILLEGAL, 1, true ); 193 def(_ldc_w , "ldc_w" , "bii" , NULL , T_ILLEGAL, 1, true ); 194 def(_ldc2_w , "ldc2_w" , "bii" , NULL , T_ILLEGAL, 2, true ); 195 def(_iload , "iload" , "bi" , "wbii" , T_INT , 1, false); 196 def(_lload , "lload" , "bi" , "wbii" , T_LONG , 2, false); 197 def(_fload , "fload" , "bi" , "wbii" , T_FLOAT , 1, false); 198 def(_dload , "dload" , "bi" , "wbii" , T_DOUBLE , 2, false); 199 def(_aload , "aload" , "bi" , "wbii" , T_OBJECT , 1, false); 200 def(_iload_0 , "iload_0" , "b" , NULL , T_INT , 1, false); 201 def(_iload_1 , "iload_1" , "b" , NULL , T_INT , 1, false); 202 def(_iload_2 , "iload_2" , "b" , NULL , T_INT , 1, false); 203 def(_iload_3 , "iload_3" , "b" , NULL , T_INT , 1, false); 204 def(_lload_0 , "lload_0" , "b" , NULL , T_LONG , 2, false); 205 def(_lload_1 , "lload_1" , "b" , NULL , T_LONG , 2, false); 206 def(_lload_2 , "lload_2" , "b" , NULL , T_LONG , 2, false); 207 def(_lload_3 , "lload_3" , "b" , NULL , T_LONG , 2, false); 208 def(_fload_0 , "fload_0" , "b" , NULL , T_FLOAT , 1, false); 209 def(_fload_1 , "fload_1" , "b" , NULL , T_FLOAT , 1, false); 210 def(_fload_2 , "fload_2" , "b" , NULL , T_FLOAT , 1, false); 211 def(_fload_3 , "fload_3" , "b" , NULL , T_FLOAT , 1, false); 212 def(_dload_0 , "dload_0" , "b" , NULL , T_DOUBLE , 2, false); 213 def(_dload_1 , "dload_1" , "b" , NULL , T_DOUBLE , 2, false); 214 def(_dload_2 , "dload_2" , "b" , NULL , T_DOUBLE , 2, false); 215 def(_dload_3 , "dload_3" , "b" , NULL , T_DOUBLE , 2, false); 216 def(_aload_0 , "aload_0" , "b" , NULL , T_OBJECT , 1, true ); // rewriting in interpreter 217 def(_aload_1 , "aload_1" , "b" , NULL , T_OBJECT , 1, false); 218 def(_aload_2 , "aload_2" , "b" , NULL , T_OBJECT , 1, false); 219 def(_aload_3 , "aload_3" , "b" , NULL , T_OBJECT , 1, false); 220 def(_iaload , "iaload" , "b" , NULL , T_INT , -1, true ); 221 def(_laload , "laload" , "b" , NULL , T_LONG , 0, true ); 222 def(_faload , "faload" , "b" , NULL , T_FLOAT , -1, true ); 223 def(_daload , "daload" , "b" , NULL , T_DOUBLE , 0, true ); 224 def(_aaload , "aaload" , "b" , NULL , T_OBJECT , -1, true ); 225 def(_baload , "baload" , "b" , NULL , T_INT , -1, true ); 226 def(_caload , "caload" , "b" , NULL , T_INT , -1, true ); 227 def(_saload , "saload" , "b" , NULL , T_INT , -1, true ); 228 def(_istore , "istore" , "bi" , "wbii" , T_VOID , -1, false); 229 def(_lstore , "lstore" , "bi" , "wbii" , T_VOID , -2, false); 230 def(_fstore , "fstore" , "bi" , "wbii" , T_VOID , -1, false); 231 def(_dstore , "dstore" , "bi" , "wbii" , T_VOID , -2, false); 232 def(_astore , "astore" , "bi" , "wbii" , T_VOID , -1, false); 233 def(_istore_0 , "istore_0" , "b" , NULL , T_VOID , -1, false); 234 def(_istore_1 , "istore_1" , "b" , NULL , T_VOID , -1, false); 235 def(_istore_2 , "istore_2" , "b" , NULL , T_VOID , -1, false); 236 def(_istore_3 , "istore_3" , "b" , NULL , T_VOID , -1, false); 237 def(_lstore_0 , "lstore_0" , "b" , NULL , T_VOID , -2, false); 238 def(_lstore_1 , "lstore_1" , "b" , NULL , T_VOID , -2, false); 239 def(_lstore_2 , "lstore_2" , "b" , NULL , T_VOID , -2, false); 240 def(_lstore_3 , "lstore_3" , "b" , NULL , T_VOID , -2, false); 241 def(_fstore_0 , "fstore_0" , "b" , NULL , T_VOID , -1, false); 242 def(_fstore_1 , "fstore_1" , "b" , NULL , T_VOID , -1, false); 243 def(_fstore_2 , "fstore_2" , "b" , NULL , T_VOID , -1, false); 244 def(_fstore_3 , "fstore_3" , "b" , NULL , T_VOID , -1, false); 245 def(_dstore_0 , "dstore_0" , "b" , NULL , T_VOID , -2, false); 246 def(_dstore_1 , "dstore_1" , "b" , NULL , T_VOID , -2, false); 247 def(_dstore_2 , "dstore_2" , "b" , NULL , T_VOID , -2, false); 248 def(_dstore_3 , "dstore_3" , "b" , NULL , T_VOID , -2, false); 249 def(_astore_0 , "astore_0" , "b" , NULL , T_VOID , -1, false); 250 def(_astore_1 , "astore_1" , "b" , NULL , T_VOID , -1, false); 251 def(_astore_2 , "astore_2" , "b" , NULL , T_VOID , -1, false); 252 def(_astore_3 , "astore_3" , "b" , NULL , T_VOID , -1, false); 253 def(_iastore , "iastore" , "b" , NULL , T_VOID , -3, true ); 254 def(_lastore , "lastore" , "b" , NULL , T_VOID , -4, true ); 255 def(_fastore , "fastore" , "b" , NULL , T_VOID , -3, true ); 256 def(_dastore , "dastore" , "b" , NULL , T_VOID , -4, true ); 257 def(_aastore , "aastore" , "b" , NULL , T_VOID , -3, true ); 258 def(_bastore , "bastore" , "b" , NULL , T_VOID , -3, true ); 259 def(_castore , "castore" , "b" , NULL , T_VOID , -3, true ); 260 def(_sastore , "sastore" , "b" , NULL , T_VOID , -3, true ); 261 def(_pop , "pop" , "b" , NULL , T_VOID , -1, false); 262 def(_pop2 , "pop2" , "b" , NULL , T_VOID , -2, false); 263 def(_dup , "dup" , "b" , NULL , T_VOID , 1, false); 264 def(_dup_x1 , "dup_x1" , "b" , NULL , T_VOID , 1, false); 265 def(_dup_x2 , "dup_x2" , "b" , NULL , T_VOID , 1, false); 266 def(_dup2 , "dup2" , "b" , NULL , T_VOID , 2, false); 267 def(_dup2_x1 , "dup2_x1" , "b" , NULL , T_VOID , 2, false); 268 def(_dup2_x2 , "dup2_x2" , "b" , NULL , T_VOID , 2, false); 269 def(_swap , "swap" , "b" , NULL , T_VOID , 0, false); 270 def(_iadd , "iadd" , "b" , NULL , T_INT , -1, false); 271 def(_ladd , "ladd" , "b" , NULL , T_LONG , -2, false); 272 def(_fadd , "fadd" , "b" , NULL , T_FLOAT , -1, false); 273 def(_dadd , "dadd" , "b" , NULL , T_DOUBLE , -2, false); 274 def(_isub , "isub" , "b" , NULL , T_INT , -1, false); 275 def(_lsub , "lsub" , "b" , NULL , T_LONG , -2, false); 276 def(_fsub , "fsub" , "b" , NULL , T_FLOAT , -1, false); 277 def(_dsub , "dsub" , "b" , NULL , T_DOUBLE , -2, false); 278 def(_imul , "imul" , "b" , NULL , T_INT , -1, false); 279 def(_lmul , "lmul" , "b" , NULL , T_LONG , -2, false); 280 def(_fmul , "fmul" , "b" , NULL , T_FLOAT , -1, false); 281 def(_dmul , "dmul" , "b" , NULL , T_DOUBLE , -2, false); 282 def(_idiv , "idiv" , "b" , NULL , T_INT , -1, true ); 283 def(_ldiv , "ldiv" , "b" , NULL , T_LONG , -2, true ); 284 def(_fdiv , "fdiv" , "b" , NULL , T_FLOAT , -1, false); 285 def(_ddiv , "ddiv" , "b" , NULL , T_DOUBLE , -2, false); 286 def(_irem , "irem" , "b" , NULL , T_INT , -1, true ); 287 def(_lrem , "lrem" , "b" , NULL , T_LONG , -2, true ); 288 def(_frem , "frem" , "b" , NULL , T_FLOAT , -1, false); 289 def(_drem , "drem" , "b" , NULL , T_DOUBLE , -2, false); 290 def(_ineg , "ineg" , "b" , NULL , T_INT , 0, false); 291 def(_lneg , "lneg" , "b" , NULL , T_LONG , 0, false); 292 def(_fneg , "fneg" , "b" , NULL , T_FLOAT , 0, false); 293 def(_dneg , "dneg" , "b" , NULL , T_DOUBLE , 0, false); 294 def(_ishl , "ishl" , "b" , NULL , T_INT , -1, false); 295 def(_lshl , "lshl" , "b" , NULL , T_LONG , -1, false); 296 def(_ishr , "ishr" , "b" , NULL , T_INT , -1, false); 297 def(_lshr , "lshr" , "b" , NULL , T_LONG , -1, false); 298 def(_iushr , "iushr" , "b" , NULL , T_INT , -1, false); 299 def(_lushr , "lushr" , "b" , NULL , T_LONG , -1, false); 300 def(_iand , "iand" , "b" , NULL , T_INT , -1, false); 301 def(_land , "land" , "b" , NULL , T_LONG , -2, false); 302 def(_ior , "ior" , "b" , NULL , T_INT , -1, false); 303 def(_lor , "lor" , "b" , NULL , T_LONG , -2, false); 304 def(_ixor , "ixor" , "b" , NULL , T_INT , -1, false); 305 def(_lxor , "lxor" , "b" , NULL , T_LONG , -2, false); 306 def(_iinc , "iinc" , "bic" , "wbiicc", T_VOID , 0, false); 307 def(_i2l , "i2l" , "b" , NULL , T_LONG , 1, false); 308 def(_i2f , "i2f" , "b" , NULL , T_FLOAT , 0, false); 309 def(_i2d , "i2d" , "b" , NULL , T_DOUBLE , 1, false); 310 def(_l2i , "l2i" , "b" , NULL , T_INT , -1, false); 311 def(_l2f , "l2f" , "b" , NULL , T_FLOAT , -1, false); 312 def(_l2d , "l2d" , "b" , NULL , T_DOUBLE , 0, false); 313 def(_f2i , "f2i" , "b" , NULL , T_INT , 0, false); 314 def(_f2l , "f2l" , "b" , NULL , T_LONG , 1, false); 315 def(_f2d , "f2d" , "b" , NULL , T_DOUBLE , 1, false); 316 def(_d2i , "d2i" , "b" , NULL , T_INT , -1, false); 317 def(_d2l , "d2l" , "b" , NULL , T_LONG , 0, false); 318 def(_d2f , "d2f" , "b" , NULL , T_FLOAT , -1, false); 319 def(_i2b , "i2b" , "b" , NULL , T_BYTE , 0, false); 320 def(_i2c , "i2c" , "b" , NULL , T_CHAR , 0, false); 321 def(_i2s , "i2s" , "b" , NULL , T_SHORT , 0, false); 322 def(_lcmp , "lcmp" , "b" , NULL , T_VOID , -3, false); 323 def(_fcmpl , "fcmpl" , "b" , NULL , T_VOID , -1, false); 324 def(_fcmpg , "fcmpg" , "b" , NULL , T_VOID , -1, false); 325 def(_dcmpl , "dcmpl" , "b" , NULL , T_VOID , -3, false); 326 def(_dcmpg , "dcmpg" , "b" , NULL , T_VOID , -3, false); 327 def(_ifeq , "ifeq" , "boo" , NULL , T_VOID , -1, false); 328 def(_ifne , "ifne" , "boo" , NULL , T_VOID , -1, false); 329 def(_iflt , "iflt" , "boo" , NULL , T_VOID , -1, false); 330 def(_ifge , "ifge" , "boo" , NULL , T_VOID , -1, false); 331 def(_ifgt , "ifgt" , "boo" , NULL , T_VOID , -1, false); 332 def(_ifle , "ifle" , "boo" , NULL , T_VOID , -1, false); 333 def(_if_icmpeq , "if_icmpeq" , "boo" , NULL , T_VOID , -2, false); 334 def(_if_icmpne , "if_icmpne" , "boo" , NULL , T_VOID , -2, false); 335 def(_if_icmplt , "if_icmplt" , "boo" , NULL , T_VOID , -2, false); 336 def(_if_icmpge , "if_icmpge" , "boo" , NULL , T_VOID , -2, false); 337 def(_if_icmpgt , "if_icmpgt" , "boo" , NULL , T_VOID , -2, false); 338 def(_if_icmple , "if_icmple" , "boo" , NULL , T_VOID , -2, false); 339 def(_if_acmpeq , "if_acmpeq" , "boo" , NULL , T_VOID , -2, false); 340 def(_if_acmpne , "if_acmpne" , "boo" , NULL , T_VOID , -2, false); 341 def(_goto , "goto" , "boo" , NULL , T_VOID , 0, false); 342 def(_jsr , "jsr" , "boo" , NULL , T_INT , 0, false); 343 def(_ret , "ret" , "bi" , "wbii" , T_VOID , 0, false); 344 def(_tableswitch , "tableswitch" , "" , NULL , T_VOID , -1, false); // may have backward branches 345 def(_lookupswitch , "lookupswitch" , "" , NULL , T_VOID , -1, false); // rewriting in interpreter 346 def(_ireturn , "ireturn" , "b" , NULL , T_INT , -1, true); 347 def(_lreturn , "lreturn" , "b" , NULL , T_LONG , -2, true); 348 def(_freturn , "freturn" , "b" , NULL , T_FLOAT , -1, true); 349 def(_dreturn , "dreturn" , "b" , NULL , T_DOUBLE , -2, true); 350 def(_areturn , "areturn" , "b" , NULL , T_OBJECT , -1, true); 351 def(_return , "return" , "b" , NULL , T_VOID , 0, true); 352 def(_getstatic , "getstatic" , "bjj" , NULL , T_ILLEGAL, 1, true ); 353 def(_putstatic , "putstatic" , "bjj" , NULL , T_ILLEGAL, -1, true ); 354 def(_getfield , "getfield" , "bjj" , NULL , T_ILLEGAL, 0, true ); 355 def(_putfield , "putfield" , "bjj" , NULL , T_ILLEGAL, -2, true ); 356 def(_invokevirtual , "invokevirtual" , "bjj" , NULL , T_ILLEGAL, -1, true); 357 def(_invokespecial , "invokespecial" , "bjj" , NULL , T_ILLEGAL, -1, true); 358 def(_invokestatic , "invokestatic" , "bjj" , NULL , T_ILLEGAL, 0, true); 359 def(_invokeinterface , "invokeinterface" , "bjj__", NULL , T_ILLEGAL, -1, true); 360 def(_invokedynamic , "invokedynamic" , "bjjjj", NULL , T_ILLEGAL, -1, true ); 361 def(_new , "new" , "bii" , NULL , T_OBJECT , 1, true ); 362 def(_newarray , "newarray" , "bc" , NULL , T_OBJECT , 0, true ); 363 def(_anewarray , "anewarray" , "bii" , NULL , T_OBJECT , 0, true ); 364 def(_arraylength , "arraylength" , "b" , NULL , T_VOID , 0, true ); 365 def(_athrow , "athrow" , "b" , NULL , T_VOID , -1, true ); 366 def(_checkcast , "checkcast" , "bii" , NULL , T_OBJECT , 0, true ); 367 def(_instanceof , "instanceof" , "bii" , NULL , T_INT , 0, true ); 368 def(_monitorenter , "monitorenter" , "b" , NULL , T_VOID , -1, true ); 369 def(_monitorexit , "monitorexit" , "b" , NULL , T_VOID , -1, true ); 370 def(_wide , "wide" , "" , NULL , T_VOID , 0, false); 371 def(_multianewarray , "multianewarray" , "biic" , NULL , T_OBJECT , 1, true ); 372 def(_ifnull , "ifnull" , "boo" , NULL , T_VOID , -1, false); 373 def(_ifnonnull , "ifnonnull" , "boo" , NULL , T_VOID , -1, false); 374 def(_goto_w , "goto_w" , "boooo", NULL , T_VOID , 0, false); 375 def(_jsr_w , "jsr_w" , "boooo", NULL , T_INT , 0, false); 376 def(_breakpoint , "breakpoint" , "" , NULL , T_VOID , 0, true); 377 378 // JVM bytecodes 379 // bytecode bytecode name format wide f. result tp stk traps std code 380 381 def(_fast_agetfield , "fast_agetfield" , "bjj" , NULL , T_OBJECT , 0, true , _getfield ); 382 def(_fast_bgetfield , "fast_bgetfield" , "bjj" , NULL , T_INT , 0, true , _getfield ); 383 def(_fast_cgetfield , "fast_cgetfield" , "bjj" , NULL , T_CHAR , 0, true , _getfield ); 384 def(_fast_dgetfield , "fast_dgetfield" , "bjj" , NULL , T_DOUBLE , 0, true , _getfield ); 385 def(_fast_fgetfield , "fast_fgetfield" , "bjj" , NULL , T_FLOAT , 0, true , _getfield ); 386 def(_fast_igetfield , "fast_igetfield" , "bjj" , NULL , T_INT , 0, true , _getfield ); 387 def(_fast_lgetfield , "fast_lgetfield" , "bjj" , NULL , T_LONG , 0, true , _getfield ); 388 def(_fast_sgetfield , "fast_sgetfield" , "bjj" , NULL , T_SHORT , 0, true , _getfield ); 389 390 def(_fast_aputfield , "fast_aputfield" , "bjj" , NULL , T_OBJECT , 0, true , _putfield ); 391 def(_fast_bputfield , "fast_bputfield" , "bjj" , NULL , T_INT , 0, true , _putfield ); 392 def(_fast_cputfield , "fast_cputfield" , "bjj" , NULL , T_CHAR , 0, true , _putfield ); 393 def(_fast_dputfield , "fast_dputfield" , "bjj" , NULL , T_DOUBLE , 0, true , _putfield ); 394 def(_fast_fputfield , "fast_fputfield" , "bjj" , NULL , T_FLOAT , 0, true , _putfield ); 395 def(_fast_iputfield , "fast_iputfield" , "bjj" , NULL , T_INT , 0, true , _putfield ); 396 def(_fast_lputfield , "fast_lputfield" , "bjj" , NULL , T_LONG , 0, true , _putfield ); 397 def(_fast_sputfield , "fast_sputfield" , "bjj" , NULL , T_SHORT , 0, true , _putfield ); 398 399 def(_fast_aload_0 , "fast_aload_0" , "b" , NULL , T_OBJECT , 1, true , _aload_0 ); 400 def(_fast_iaccess_0 , "fast_iaccess_0" , "b_jj" , NULL , T_INT , 1, true , _aload_0 ); 401 def(_fast_aaccess_0 , "fast_aaccess_0" , "b_jj" , NULL , T_OBJECT , 1, true , _aload_0 ); 402 def(_fast_faccess_0 , "fast_faccess_0" , "b_jj" , NULL , T_OBJECT , 1, true , _aload_0 ); 403 404 def(_fast_iload , "fast_iload" , "bi" , NULL , T_INT , 1, false, _iload); 405 def(_fast_iload2 , "fast_iload2" , "bi_i" , NULL , T_INT , 2, false, _iload); 406 def(_fast_icaload , "fast_icaload" , "bi_" , NULL , T_INT , 0, false, _iload); 407 408 // Faster method invocation. 409 def(_fast_invokevfinal , "fast_invokevfinal" , "bjj" , NULL , T_ILLEGAL, -1, true, _invokevirtual ); 410 411 def(_fast_linearswitch , "fast_linearswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch ); 412 def(_fast_binaryswitch , "fast_binaryswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch ); 413 414 def(_return_register_finalizer , "return_register_finalizer" , "b" , NULL , T_VOID , 0, true, _return); 415 416 def(_shouldnotreachhere , "_shouldnotreachhere" , "b" , NULL , T_VOID , 0, false); 417 418 // platform specific JVM bytecodes 419 pd_initialize(); 420 421 // compare can_trap information for each bytecode with the 422 // can_trap information for the corresponding base bytecode 423 // (if a rewritten bytecode can trap, so must the base bytecode) 424 #ifdef ASSERT 425 { for (int i = 0; i < number_of_codes; i++) { 426 if (is_defined(i)) { 427 Code code = cast(i); 428 Code java = java_code(code); 429 if (can_trap(code) && !can_trap(java)) fatal2("%s can trap => %s can trap, too", name(code), name(java)); 430 } 431 } 432 } 433 #endif 434 435 // initialization successful 436 _is_initialized = true; 437} 438 439 440void bytecodes_init() { 441 Bytecodes::initialize(); 442} 443 444// Restore optimization 445#ifdef _M_AMD64 446#pragma optimize ("", on) 447#endif 448