src/vm/jit/jit.c

   1 /* src/vm/jit/jit.c - calls the code generation functions
   2
   3    Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    Contact: cacao@cacaojvm.org
  26
  27    Authors: Andreas Krall
  28             Reinhard Grafl
  29
  30    Changes: Edwin Steiner
  31             Christian Thalinger
  32             Christian Ullrich
  33
  34    $Id: jit.c 5842 2006-10-27 10:41:02Z twisti $
  35
  36 */
  37
  38
  39 #include "config.h"
  40 #include "vm/types.h"
  41
  42 #include <assert.h>
  43
  44 #include "mm/memory.h"
  45 #include "native/native.h"
  46 #include "toolbox/logging.h"
  47
  48 #if defined(ENABLE_THREADS)
  49 # include "threads/native/lock.h"
  50 #else
  51 # include "threads/none/lock.h"
  52 #endif
  53
  54 #include "vm/class.h"
  55 #include "vm/global.h"
  56 #include "vm/initialize.h"
  57 #include "vm/loader.h"
  58 #include "vm/method.h"
  59 #include "vm/options.h"
  60 #include "vm/statistics.h"
  61 #include "vm/jit/asmpart.h"
  62
  63 # include "vm/jit/cfg.h"
  64
  65 #include "vm/jit/codegen-common.h"
  66 #include "vm/jit/disass.h"
  67 #include "vm/jit/dseg.h"
  68 #include "vm/jit/jit.h"
  69 #include "vm/jit/parse.h"
  70 #include "vm/jit/reg.h"
  71
  72 # include "vm/jit/reorder.h"
  73
  74 #include "vm/jit/show.h"
  75 #include "vm/jit/stack.h"
  76
  77 #include "vm/jit/allocator/simplereg.h"
  78 #if defined(ENABLE_LSRA) && !defined(ENABLE_SSA)
  79 # include "vm/jit/allocator/lsra.h"
  80 #endif
  81 #if defined(ENABLE_SSA)
  82 # include "vm/jit/optimizing/lsra.h"
  83 # include "vm/jit/optimizing/ssa.h"
  84 #endif
  85
  86
  87 #if defined(ENABLE_IFCONV)
  88 # include "vm/jit/ifconv/ifconv.h"
  89 #endif
  90
  91 #include "vm/jit/loop/analyze.h"
  92 #include "vm/jit/loop/graph.h"
  93 #include "vm/jit/loop/loop.h"
  94 #include "vm/jit/verify/typecheck.h"
  95 #include "vm/rt-timing.h"
  96
  97 #if defined(ENABLE_THREADS)
  98 # include "threads/native/threads.h"
  99 #endif
 100
 101
 102 /* debug macros ***************************************************************/
 103
 104 #if !defined(NDEBUG)
 105 #define DEBUG_JIT_COMPILEVERBOSE(x) \
 106     do { \
 107         if (compileverbose) { \
 108             log_message_method(x, m); \
 109         } \
 110     } while (0)
 111 #else
 112 #define DEBUG_JIT_COMPILEVERBOSE(x)    /* nothing */
 113 #endif
 114
 115
 116 /* the ICMD table ************************************************************/
 117
 118 #if !defined(NDEBUG)
 119 #define N(name)  name,
 120 #else
 121 #define N(name)
 122 #endif
 123
 124 /* abbreviations for flags */
 125
 126 #define PEI     ICMDTABLE_PEI
 127 #define CALLS   ICMDTABLE_CALLS
 128
 129 /* some machine dependent values */
 130
 131 #if SUPPORT_DIVISION
 132 #define IDIV_CALLS  0
 133 #else
 134 #define IDIV_CALLS  ICMDTABLE_CALLS
 135 #endif
 136
 137 #if (SUPPORT_DIVISION && SUPPORT_LONG && SUPPORT_LONG_DIV)
 138 #define LDIV_CALLS  0
 139 #else
 140 #define LDIV_CALLS  ICMDTABLE_CALLS
 141 #endif
 142
 143 /* include the actual table */
 144
 145 icmdtable_entry_t icmd_table[256] = {
 146 #include <vm/jit/icmdtable.inc>
 147 };
 148
 149 #undef N
 150 #undef PEI
 151 #undef CALLS
 152
 153 /* XXX hack until the old "PEI" definition is removed */
 154 #define PEI 1
 155
 156
 157 /* stackelement requirements of Java opcodes **********************************/
 158
 159 int stackreq[256] = {
 160         0,    /* JAVA_NOP                         0 */
 161         1,    /* JAVA_ACONST                      1 */
 162         1,    /* JAVA_ICONST_M1                   2 */
 163         1,    /* JAVA_ICONST_0                    3 */
 164         1,    /* JAVA_ICONST_1                    4 */
 165         1,    /* JAVA_ICONST_2                    5 */
 166         1,    /* JAVA_ICONST_3                    6 */
 167         1,    /* JAVA_ICONST_4                    7 */
 168         1,    /* JAVA_ICONST_5                    8 */
 169         1,    /* JAVA_LCONST_0                    9 */
 170         1,    /* JAVA_LCONST_1                   10 */
 171         1,    /* JAVA_FCONST_0                   11 */
 172         1,    /* JAVA_FCONST_1                   12 */
 173         1,    /* JAVA_FCONST_2                   13 */
 174         1,    /* JAVA_DCONST_0                   14 */
 175         1,    /* JAVA_DCONST_1                   15 */
 176         1,    /* JAVA_BIPUSH                     16 */
 177         1,    /* JAVA_SIPUSH                     17 */
 178         1,    /* JAVA_LDC                        18 */
 179         1,    /* JAVA_LDC_W                      19 */
 180         1,    /* JAVA_LDC2_W                     20 */
 181         1,    /* JAVA_ILOAD                      21 */
 182         1,    /* JAVA_LLOAD                      22 */
 183         1,    /* JAVA_FLOAD                      23 */
 184         1,    /* JAVA_DLOAD                      24 */
 185         1,    /* JAVA_ALOAD                      25 */
 186         1,    /* JAVA_ILOAD_0                    26 */
 187         1,    /* JAVA_ILOAD_1                    27 */
 188         1,    /* JAVA_ILOAD_2                    28 */
 189         1,    /* JAVA_ILOAD_3                    29 */
 190         1,    /* JAVA_LLOAD_0                    30 */
 191         1,    /* JAVA_LLOAD_1                    31 */
 192         1,    /* JAVA_LLOAD_2                    32 */
 193         1,    /* JAVA_LLOAD_3                    33 */
 194         1,    /* JAVA_FLOAD_0                    34 */
 195         1,    /* JAVA_FLOAD_1                    35 */
 196         1,    /* JAVA_FLOAD_2                    36 */
 197         1,    /* JAVA_FLOAD_3                    37 */
 198         1,    /* JAVA_DLOAD_0                    38 */
 199         1,    /* JAVA_DLOAD_1                    39 */
 200         1,    /* JAVA_DLOAD_2                    40 */
 201         1,    /* JAVA_DLOAD_3                    41 */
 202         1,    /* JAVA_ALOAD_0                    42 */
 203         1,    /* JAVA_ALOAD_1                    43 */
 204         1,    /* JAVA_ALOAD_2                    44 */
 205         1,    /* JAVA_ALOAD_3                    45 */
 206         1,    /* JAVA_IALOAD                     46 */
 207         1,    /* JAVA_LALOAD                     47 */
 208         1,    /* JAVA_FALOAD                     48 */
 209         1,    /* JAVA_DALOAD                     49 */
 210         1,    /* JAVA_AALOAD                     50 */
 211         1,    /* JAVA_BALOAD                     51 */
 212         1,    /* JAVA_CALOAD                     52 */
 213         1,    /* JAVA_SALOAD                     53 */
 214         0,    /* JAVA_ISTORE                     54 */
 215         0,    /* JAVA_LSTORE                     55 */
 216         0,    /* JAVA_FSTORE                     56 */
 217         0,    /* JAVA_DSTORE                     57 */
 218         0,    /* JAVA_ASTORE                     58 */
 219         0,    /* JAVA_ISTORE_0                   59 */
 220         0,    /* JAVA_ISTORE_1                   60 */
 221         0,    /* JAVA_ISTORE_2                   61 */
 222         0,    /* JAVA_ISTORE_3                   62 */
 223         0,    /* JAVA_LSTORE_0                   63 */
 224         0,    /* JAVA_LSTORE_1                   64 */
 225         0,    /* JAVA_LSTORE_2                   65 */
 226         0,    /* JAVA_LSTORE_3                   66 */
 227         0,    /* JAVA_FSTORE_0                   67 */
 228         0,    /* JAVA_FSTORE_1                   68 */
 229         0,    /* JAVA_FSTORE_2                   69 */
 230         0,    /* JAVA_FSTORE_3                   70 */
 231         0,    /* JAVA_DSTORE_0                   71 */
 232         0,    /* JAVA_DSTORE_1                   72 */
 233         0,    /* JAVA_DSTORE_2                   73 */
 234         0,    /* JAVA_DSTORE_3                   74 */
 235         0,    /* JAVA_ASTORE_0                   75 */
 236         0,    /* JAVA_ASTORE_1                   76 */
 237         0,    /* JAVA_ASTORE_2                   77 */
 238         0,    /* JAVA_ASTORE_3                   78 */
 239         0,    /* JAVA_IASTORE                    79 */
 240         0,    /* JAVA_LASTORE                    80 */
 241         0,    /* JAVA_FASTORE                    81 */
 242         0,    /* JAVA_DASTORE                    82 */
 243         0,    /* JAVA_AASTORE                    83 */
 244         0,    /* JAVA_BASTORE                    84 */
 245         0,    /* JAVA_CASTORE                    85 */
 246         0,    /* JAVA_SASTORE                    86 */
 247         0,    /* JAVA_POP                        87 */
 248         0,    /* JAVA_POP2                       88 */
 249         1,    /* JAVA_DUP                        89 */
 250         3,    /* JAVA_DUP_X1                     90 */
 251         4,    /* JAVA_DUP_X2                     91 */
 252         2,    /* JAVA_DUP2                       92 */
 253         3,    /* JAVA_DUP2_X1                    93 */
 254         4,    /* JAVA_DUP2_X2                    94 */
 255         2,    /* JAVA_SWAP                       95 */
 256         1,    /* JAVA_IADD                       96 */
 257         1,    /* JAVA_LADD                       97 */
 258         1,    /* JAVA_FADD                       98 */
 259         1,    /* JAVA_DADD                       99 */
 260         1,    /* JAVA_ISUB                      100 */
 261         1,    /* JAVA_LSUB                      101 */
 262         1,    /* JAVA_FSUB                      102 */
 263         1,    /* JAVA_DSUB                      103 */
 264         1,    /* JAVA_IMUL                      104 */
 265         1,    /* JAVA_LMUL                      105 */
 266         1,    /* JAVA_FMUL                      106 */
 267         1,    /* JAVA_DMUL                      107 */
 268         1,    /* JAVA_IDIV                      108 */
 269         1,    /* JAVA_LDIV                      109 */
 270         1,    /* JAVA_FDIV                      110 */
 271         1,    /* JAVA_DDIV                      111 */
 272         1,    /* JAVA_IREM                      112 */
 273         1,    /* JAVA_LREM                      113 */
 274         1,    /* JAVA_FREM                      114 */
 275         1,    /* JAVA_DREM                      115 */
 276         1,    /* JAVA_INEG                      116 */
 277         1,    /* JAVA_LNEG                      117 */
 278         1,    /* JAVA_FNEG                      118 */
 279         1,    /* JAVA_DNEG                      119 */
 280         1,    /* JAVA_ISHL                      120 */
 281         1,    /* JAVA_LSHL                      121 */
 282         1,    /* JAVA_ISHR                      122 */
 283         1,    /* JAVA_LSHR                      123 */
 284         1,    /* JAVA_IUSHR                     124 */
 285         1,    /* JAVA_LUSHR                     125 */
 286         1,    /* JAVA_IAND                      126 */
 287         1,    /* JAVA_LAND                      127 */
 288         1,    /* JAVA_IOR                       128 */
 289         1,    /* JAVA_LOR                       129 */
 290         1,    /* JAVA_IXOR                      130 */
 291         1,    /* JAVA_LXOR                      131 */
 292         0,    /* JAVA_IINC                      132 */
 293         1,    /* JAVA_I2L                       133 */
 294         1,    /* JAVA_I2F                       134 */
 295         1,    /* JAVA_I2D                       135 */
 296         1,    /* JAVA_L2I                       136 */
 297         1,    /* JAVA_L2F                       137 */
 298         1,    /* JAVA_L2D                       138 */
 299         1,    /* JAVA_F2I                       139 */
 300         1,    /* JAVA_F2L                       140 */
 301         1,    /* JAVA_F2D                       141 */
 302         1,    /* JAVA_D2I                       142 */
 303         1,    /* JAVA_D2L                       143 */
 304         1,    /* JAVA_D2F                       144 */
 305         1,    /* JAVA_INT2BYTE                  145 */
 306         1,    /* JAVA_INT2CHAR                  146 */
 307         1,    /* JAVA_INT2SHORT                 147 */
 308         1,    /* JAVA_LCMP                      148 */
 309         1,    /* JAVA_FCMPL                     149 */
 310         1,    /* JAVA_FCMPG                     150 */
 311         1,    /* JAVA_DCMPL                     151 */
 312         1,    /* JAVA_DCMPG                     152 */
 313         0,    /* JAVA_IFEQ                      153 */
 314         0,    /* JAVA_IFNE                      154 */
 315         0,    /* JAVA_IFLT                      155 */
 316         0,    /* JAVA_IFGE                      156 */
 317         0,    /* JAVA_IFGT                      157 */
 318         0,    /* JAVA_IFLE                      158 */
 319         0,    /* JAVA_IF_ICMPEQ                 159 */
 320         0,    /* JAVA_IF_ICMPNE                 160 */
 321         0,    /* JAVA_IF_ICMPLT                 161 */
 322         0,    /* JAVA_IF_ICMPGE                 162 */
 323         0,    /* JAVA_IF_ICMPGT                 163 */
 324         0,    /* JAVA_IF_ICMPLE                 164 */
 325         0,    /* JAVA_IF_ACMPEQ                 165 */
 326         0,    /* JAVA_IF_ACMPNE                 166 */
 327         0,    /* JAVA_GOTO                      167 */
 328         1,    /* JAVA_JSR                       168 */
 329         0,    /* JAVA_RET                       169 */
 330         0,    /* JAVA_TABLESWITCH               170 */
 331         0,    /* JAVA_LOOKUPSWITCH              171 */
 332         0,    /* JAVA_IRETURN                   172 */
 333         0,    /* JAVA_LRETURN                   173 */
 334         0,    /* JAVA_FRETURN                   174 */
 335         0,    /* JAVA_DRETURN                   175 */
 336         0,    /* JAVA_ARETURN                   176 */
 337         0,    /* JAVA_RETURN                    177 */
 338         1,    /* JAVA_GETSTATIC                 178 */
 339         0,    /* JAVA_PUTSTATIC                 179 */
 340         1,    /* JAVA_GETFIELD                  180 */
 341         0,    /* JAVA_PUTFIELD                  181 */
 342         1,    /* JAVA_INVOKEVIRTUAL             182 */
 343         1,    /* JAVA_INVOKESPECIAL             183 */
 344         1,    /* JAVA_INVOKESTATIC              184 */
 345         1,    /* JAVA_INVOKEINTERFACE           185 */
 346         1,    /* JAVA_UNDEF186                  186 */
 347         1,    /* JAVA_NEW                       187 */
 348         1,    /* JAVA_NEWARRAY                  188 */
 349         1,    /* JAVA_ANEWARRAY                 189 */
 350         1,    /* JAVA_ARRAYLENGTH               190 */
 351         1,    /* JAVA_ATHROW                    191 */
 352         1,    /* JAVA_CHECKCAST                 192 */
 353         1,    /* JAVA_INSTANCEOF                193 */
 354         0,    /* JAVA_MONITORENTER              194 */
 355         0,    /* JAVA_MONITOREXIT               195 */
 356         0,    /* JAVA_WIDE                      196 */
 357         1,    /* JAVA_MULTIANEWARRAY            197 */
 358         0,    /* JAVA_IFNULL                    198 */
 359         0,    /* JAVA_IFNONNULL                 199 */
 360         0,    /* JAVA_GOTO_W                    200 */
 361         1,    /* JAVA_JSR_W                     201 */
 362         0,    /* JAVA_BREAKPOINT                202 */
 363         1,    /* JAVA_UNDEF203                  203 */
 364         1,    /* JAVA_UNDEF204                  204 */
 365         1,    /* JAVA_UNDEF205                  205 */
 366         1,    /* JAVA_UNDEF206                  206 */
 367         1,    /* JAVA_UNDEF207                  207 */
 368         1,    /* JAVA_UNDEF208                  208 */
 369         1,    /* JAVA_UNDEF209                  209 */
 370         1,    /* JAVA_UNDEF210                  210 */
 371         1,    /* JAVA_UNDEF211                  211 */
 372         1,    /* JAVA_UNDEF212                  212 */
 373         1,    /* JAVA_UNDEF213                  213 */
 374         1,    /* JAVA_UNDEF214                  214 */
 375         1,    /* JAVA_UNDEF215                  215 */
 376         1,    /* JAVA_UNDEF216                  216 */
 377         1,    /* JAVA_UNDEF217                  217 */
 378         1,    /* JAVA_UNDEF218                  218 */
 379         1,    /* JAVA_UNDEF219                  219 */
 380         1,    /* JAVA_UNDEF220                  220 */
 381         1,    /* JAVA_UNDEF221                  221 */
 382         1,    /* JAVA_UNDEF222                  222 */
 383         1,    /* JAVA_UNDEF223                  223 */
 384         1,    /* JAVA_UNDEF224                  224 */
 385         1,    /* JAVA_UNDEF225                  225 */
 386         1,    /* JAVA_UNDEF226                  226 */
 387         1,    /* JAVA_UNDEF227                  227 */
 388         1,    /* JAVA_UNDEF228                  228 */
 389         1,    /* JAVA_UNDEF229                  229 */
 390         1,    /* JAVA_UNDEF230                  230 */
 391         1,    /* JAVA_UNDEF231                  231 */
 392         1,    /* JAVA_UNDEF232                  232 */
 393         1,    /* JAVA_UNDEF233                  233 */
 394         1,    /* JAVA_UNDEF234                  234 */
 395         1,    /* JAVA_UNDEF235                  235 */
 396         1,    /* JAVA_UNDEF236                  236 */
 397         1,    /* JAVA_UNDEF237                  237 */
 398         1,    /* JAVA_UNDEF238                  238 */
 399         1,    /* JAVA_UNDEF239                  239 */
 400         1,    /* JAVA_UNDEF240                  240 */
 401         1,    /* JAVA_UNDEF241                  241 */
 402         1,    /* JAVA_UNDEF242                  242 */
 403         1,    /* JAVA_UNDEF243                  243 */
 404         1,    /* JAVA_UNDEF244                  244 */
 405         1,    /* JAVA_UNDEF245                  245 */
 406         1,    /* JAVA_UNDEF246                  246 */
 407         1,    /* JAVA_UNDEF247                  247 */
 408         1,    /* JAVA_UNDEF248                  248 */
 409         1,    /* JAVA_UNDEF249                  249 */
 410         1,    /* JAVA_UNDEF250                  250 */
 411         1,    /* JAVA_UNDEF251                  251 */
 412         1,    /* JAVA_UNDEF252                  252 */
 413         1,    /* JAVA_UNDEF253                  253 */
 414         1,    /* JAVA_UNDEF254                  254 */
 415         1,    /* JAVA_UNDEF255                  255 */
 416 };
 417
 418
 419 /* size in bytes of Java opcodes **********************************************/
 420
 421 int jcommandsize[256] = {
 422
 423         1,    /* JAVA_NOP                         0 */
 424         1,    /* JAVA_ACONST_NULL                 1 */
 425         1,    /* JAVA_ICONST_M1                   2 */
 426         1,    /* JAVA_ICONST_0                    3 */
 427         1,    /* JAVA_ICONST_1                    4 */
 428         1,    /* JAVA_ICONST_2                    5 */
 429         1,    /* JAVA_ICONST_3                    6 */
 430         1,    /* JAVA_ICONST_4                    7 */
 431         1,    /* JAVA_ICONST_5                    8 */
 432         1,    /* JAVA_LCONST_0                    9 */
 433         1,    /* JAVA_LCONST_1                   10 */
 434         1,    /* JAVA_FCONST_0                   11 */
 435         1,    /* JAVA_FCONST_1                   12 */
 436         1,    /* JAVA_FCONST_2                   13 */
 437         1,    /* JAVA_DCONST_0                   14 */
 438         1,    /* JAVA_DCONST_1                   15 */
 439         2,    /* JAVA_BIPUSH                     16 */
 440         3,    /* JAVA_SIPUSH                     17 */
 441         2,    /* JAVA_LDC1                       18 */
 442         3,    /* JAVA_LDC2                       19 */
 443         3,    /* JAVA_LDC2W                      20 */
 444         2,    /* JAVA_ILOAD                      21 */
 445         2,    /* JAVA_LLOAD                      22 */
 446         2,    /* JAVA_FLOAD                      23 */
 447         2,    /* JAVA_DLOAD                      24 */
 448         2,    /* JAVA_ALOAD                      25 */
 449         1,    /* JAVA_ILOAD_0                    26 */
 450         1,    /* JAVA_ILOAD_1                    27 */
 451         1,    /* JAVA_ILOAD_2                    28 */
 452         1,    /* JAVA_ILOAD_3                    29 */
 453         1,    /* JAVA_LLOAD_0                    30 */
 454         1,    /* JAVA_LLOAD_1                    31 */
 455         1,    /* JAVA_LLOAD_2                    32 */
 456         1,    /* JAVA_LLOAD_3                    33 */
 457         1,    /* JAVA_FLOAD_0                    34 */
 458         1,    /* JAVA_FLOAD_1                    35 */
 459         1,    /* JAVA_FLOAD_2                    36 */
 460         1,    /* JAVA_FLOAD_3                    37 */
 461         1,    /* JAVA_DLOAD_0                    38 */
 462         1,    /* JAVA_DLOAD_1                    39 */
 463         1,    /* JAVA_DLOAD_2                    40 */
 464         1,    /* JAVA_DLOAD_3                    41 */
 465         1,    /* JAVA_ALOAD_0                    42 */
 466         1,    /* JAVA_ALOAD_1                    43 */
 467         1,    /* JAVA_ALOAD_2                    44 */
 468         1,    /* JAVA_ALOAD_3                    45 */
 469         1,    /* JAVA_IALOAD                     46 */
 470         1,    /* JAVA_LALOAD                     47 */
 471         1,    /* JAVA_FALOAD                     48 */
 472         1,    /* JAVA_DALOAD                     49 */
 473         1,    /* JAVA_AALOAD                     50 */
 474         1,    /* JAVA_BALOAD                     51 */
 475         1,    /* JAVA_CALOAD                     52 */
 476         1,    /* JAVA_SALOAD                     53 */
 477         2,    /* JAVA_ISTORE                     54 */
 478         2,    /* JAVA_LSTORE                     55 */
 479         2,    /* JAVA_FSTORE                     56 */
 480         2,    /* JAVA_DSTORE                     57 */
 481         2,    /* JAVA_ASTORE                     58 */
 482         1,    /* JAVA_ISTORE_0                   59 */
 483         1,    /* JAVA_ISTORE_1                   60 */
 484         1,    /* JAVA_ISTORE_2                   61 */
 485         1,    /* JAVA_ISTORE_3                   62 */
 486         1,    /* JAVA_LSTORE_0                   63 */
 487         1,    /* JAVA_LSTORE_1                   64 */
 488         1,    /* JAVA_LSTORE_2                   65 */
 489         1,    /* JAVA_LSTORE_3                   66 */
 490         1,    /* JAVA_FSTORE_0                   67 */
 491         1,    /* JAVA_FSTORE_1                   68 */
 492         1,    /* JAVA_FSTORE_2                   69 */
 493         1,    /* JAVA_FSTORE_3                   70 */
 494         1,    /* JAVA_DSTORE_0                   71 */
 495         1,    /* JAVA_DSTORE_1                   72 */
 496         1,    /* JAVA_DSTORE_2                   73 */
 497         1,    /* JAVA_DSTORE_3                   74 */
 498         1,    /* JAVA_ASTORE_0                   75 */
 499         1,    /* JAVA_ASTORE_1                   76 */
 500         1,    /* JAVA_ASTORE_2                   77 */
 501         1,    /* JAVA_ASTORE_3                   78 */
 502         1,    /* JAVA_IASTORE                    79 */
 503         1,    /* JAVA_LASTORE                    80 */
 504         1,    /* JAVA_FASTORE                    81 */
 505         1,    /* JAVA_DASTORE                    82 */
 506         1,    /* JAVA_AASTORE                    83 */
 507         1,    /* JAVA_BASTORE                    84 */
 508         1,    /* JAVA_CASTORE                    85 */
 509         1,    /* JAVA_SASTORE                    86 */
 510         1,    /* JAVA_POP                        87 */
 511         1,    /* JAVA_POP2                       88 */
 512         1,    /* JAVA_DUP                        89 */
 513         1,    /* JAVA_DUP_X1                     90 */
 514         1,    /* JAVA_DUP_X2                     91 */
 515         1,    /* JAVA_DUP2                       92 */
 516         1,    /* JAVA_DUP2_X1                    93 */
 517         1,    /* JAVA_DUP2_X2                    94 */
 518         1,    /* JAVA_SWAP                       95 */
 519         1,    /* JAVA_IADD                       96 */
 520         1,    /* JAVA_LADD                       97 */
 521         1,    /* JAVA_FADD                       98 */
 522         1,    /* JAVA_DADD                       99 */
 523         1,    /* JAVA_ISUB                      100 */
 524         1,    /* JAVA_LSUB                      101 */
 525         1,    /* JAVA_FSUB                      102 */
 526         1,    /* JAVA_DSUB                      103 */
 527         1,    /* JAVA_IMUL                      104 */
 528         1,    /* JAVA_LMUL                      105 */
 529         1,    /* JAVA_FMUL                      106 */
 530         1,    /* JAVA_DMUL                      107 */
 531         1,    /* JAVA_IDIV                      108 */
 532         1,    /* JAVA_LDIV                      109 */
 533         1,    /* JAVA_FDIV                      110 */
 534         1,    /* JAVA_DDIV                      111 */
 535         1,    /* JAVA_IREM                      112 */
 536         1,    /* JAVA_LREM                      113 */
 537         1,    /* JAVA_FREM                      114 */
 538         1,    /* JAVA_DREM                      115 */
 539         1,    /* JAVA_INEG                      116 */
 540         1,    /* JAVA_LNEG                      117 */
 541         1,    /* JAVA_FNEG                      118 */
 542         1,    /* JAVA_DNEG                      119 */
 543         1,    /* JAVA_ISHL                      120 */
 544         1,    /* JAVA_LSHL                      121 */
 545         1,    /* JAVA_ISHR                      122 */
 546         1,    /* JAVA_LSHR                      123 */
 547         1,    /* JAVA_IUSHR                     124 */
 548         1,    /* JAVA_LUSHR                     125 */
 549         1,    /* JAVA_IAND                      126 */
 550         1,    /* JAVA_LAND                      127 */
 551         1,    /* JAVA_IOR                       128 */
 552         1,    /* JAVA_LOR                       129 */
 553         1,    /* JAVA_IXOR                      130 */
 554         1,    /* JAVA_LXOR                      131 */
 555         3,    /* JAVA_IINC                      132 */
 556         1,    /* JAVA_I2L                       133 */
 557         1,    /* JAVA_I2F                       134 */
 558         1,    /* JAVA_I2D                       135 */
 559         1,    /* JAVA_L2I                       136 */
 560         1,    /* JAVA_L2F                       137 */
 561         1,    /* JAVA_L2D                       138 */
 562         1,    /* JAVA_F2I                       139 */
 563         1,    /* JAVA_F2L                       140 */
 564         1,    /* JAVA_F2D                       141 */
 565         1,    /* JAVA_D2I                       142 */
 566         1,    /* JAVA_D2L                       143 */
 567         1,    /* JAVA_D2F                       144 */
 568         1,    /* JAVA_INT2BYTE                  145 */
 569         1,    /* JAVA_INT2CHAR                  146 */
 570         1,    /* JAVA_INT2SHORT                 147 */
 571         1,    /* JAVA_LCMP                      148 */
 572         1,    /* JAVA_FCMPL                     149 */
 573         1,    /* JAVA_FCMPG                     150 */
 574         1,    /* JAVA_DCMPL                     151 */
 575         1,    /* JAVA_DCMPG                     152 */
 576         3,    /* JAVA_IFEQ                      153 */
 577         3,    /* JAVA_IFNE                      154 */
 578         3,    /* JAVA_IFLT                      155 */
 579         3,    /* JAVA_IFGE                      156 */
 580         3,    /* JAVA_IFGT                      157 */
 581         3,    /* JAVA_IFLE                      158 */
 582         3,    /* JAVA_IF_ICMPEQ                 159 */
 583         3,    /* JAVA_IF_ICMPNE                 160 */
 584         3,    /* JAVA_IF_ICMPLT                 161 */
 585         3,    /* JAVA_IF_ICMPGE                 162 */
 586         3,    /* JAVA_IF_ICMPGT                 163 */
 587         3,    /* JAVA_IF_ICMPLE                 164 */
 588         3,    /* JAVA_IF_ACMPEQ                 165 */
 589         3,    /* JAVA_IF_ACMPNE                 166 */
 590         3,    /* JAVA_GOTO                      167 */
 591         3,    /* JAVA_JSR                       168 */
 592         2,    /* JAVA_RET                       169 */
 593         0,    /* JAVA_TABLESWITCH               170 */ /* variable length */
 594         0,    /* JAVA_LOOKUPSWITCH              171 */ /* variable length */
 595         1,    /* JAVA_IRETURN                   172 */
 596         1,    /* JAVA_LRETURN                   173 */
 597         1,    /* JAVA_FRETURN                   174 */
 598         1,    /* JAVA_DRETURN                   175 */
 599         1,    /* JAVA_ARETURN                   176 */
 600         1,    /* JAVA_RETURN                    177 */
 601         3,    /* JAVA_GETSTATIC                 178 */
 602         3,    /* JAVA_PUTSTATIC                 179 */
 603         3,    /* JAVA_GETFIELD                  180 */
 604         3,    /* JAVA_PUTFIELD                  181 */
 605         3,    /* JAVA_INVOKEVIRTUAL             182 */
 606         3,    /* JAVA_INVOKESPECIAL             183 */
 607         3,    /* JAVA_INVOKESTATIC              184 */
 608         5,    /* JAVA_INVOKEINTERFACE           185 */
 609         1,    /* UNDEF186 */
 610         3,    /* JAVA_NEW                       187 */
 611         2,    /* JAVA_NEWARRAY                  188 */
 612         3,    /* JAVA_ANEWARRAY                 189 */
 613         1,    /* JAVA_ARRAYLENGTH               190 */
 614         1,    /* JAVA_ATHROW                    191 */
 615         3,    /* JAVA_CHECKCAST                 192 */
 616         3,    /* JAVA_INSTANCEOF                193 */
 617         1,    /* JAVA_MONITORENTER              194 */
 618         1,    /* JAVA_MONITOREXIT               195 */
 619         0,    /* JAVA_WIDE                      196 */ /* variable length */
 620         4,    /* JAVA_MULTIANEWARRAY            197 */
 621         3,    /* JAVA_IFNULL                    198 */
 622         3,    /* JAVA_IFNONNULL                 199 */
 623         5,    /* JAVA_GOTO_W                    200 */
 624         5,    /* JAVA_JSR_W                     201 */
 625         1,    /* JAVA_BREAKPOINT                202 */
 626
 627         1,    /* UNDEF203 */
 628         1,
 629         1,
 630         1,
 631         1,
 632         1,
 633         1,
 634         1,    /* UNDEF210 */
 635         1,
 636         1,
 637         1,
 638         1,
 639         1,
 640         1,
 641         1,
 642         1,
 643         1,
 644         1,    /* UNDEF220 */
 645         1,
 646         1,
 647         1,
 648         1,
 649         1,
 650         1,
 651         1,
 652         1,
 653         1,
 654         1,    /* UNDEF230 */
 655         1,
 656         1,
 657         1,
 658         1,
 659
 660         /* unused */
 661                 1,1,1,1,1,1,
 662         1,1,1,1,1,1,1,1,1,1,
 663         1,1,1,1,1
 664 };
 665
 666
 667 /* Java opcode names *********************************************************/
 668
 669 char *opcode_names[256] = {
 670         "NOP            ", /*               0 */
 671         "ACONST         ", /*               1 */
 672         "ICONST_M1      ", /* ICONST_M1     2 */
 673         "ICONST_0       ", /* ICONST_0      3 */
 674         "ICONST_1       ", /* ICONST_1      4 */
 675         "ICONST_2       ", /* ICONST_2      5 */
 676         "ICONST_3       ", /* ICONST_3      6 */
 677         "ICONST_4       ", /* ICONST_4      7 */
 678         "ICONST_5       ", /* ICONST_5      8 */
 679         "LCONST_0       ", /* LCONST_0      9 */
 680         "LCONST_1       ", /* LCONST_1     10 */
 681         "FCONST_0       ", /* FCONST_0     11 */
 682         "FCONST_1       ", /* FCONST_1     12 */
 683         "FCONST_2       ", /* FCONST_2     13 */
 684         "DCONST_0       ", /* DCONST_0     14 */
 685         "DCONST_1       ", /* DCONST_1     15 */
 686         "BIPUSH         ", /* BIPUSH       16 */
 687         "SIPUSH         ", /* SIPUSH       17 */
 688         "LDC            ", /* LDC          18 */
 689         "LDC_W          ", /* LDC_W        19 */
 690         "LDC2_W         ", /* LDC2_W       20 */
 691         "ILOAD          ", /*              21 */
 692         "LLOAD          ", /*              22 */
 693         "FLOAD          ", /*              23 */
 694         "DLOAD          ", /*              24 */
 695         "ALOAD          ", /*              25 */
 696         "ILOAD_0        ", /* ILOAD_0      26 */
 697         "ILOAD_1        ", /* ILOAD_1      27 */
 698         "ILOAD_2        ", /* ILOAD_2      28 */
 699         "ILOAD_3        ", /* ILOAD_3      29 */
 700         "LLOAD_0        ", /* LLOAD_0      30 */
 701         "LLOAD_1        ", /* LLOAD_1      31 */
 702         "LLOAD_2        ", /* LLOAD_2      32 */
 703         "LLOAD_3        ", /* LLOAD_3      33 */
 704         "FLOAD_0        ", /* FLOAD_0      34 */
 705         "FLOAD_1        ", /* FLOAD_1      35 */
 706         "FLOAD_2        ", /* FLOAD_2      36 */
 707         "FLOAD_3        ", /* FLOAD_3      37 */
 708         "DLOAD_0        ", /* DLOAD_0      38 */
 709         "DLOAD_1        ", /* DLOAD_1      39 */
 710         "DLOAD_2        ", /* DLOAD_2      40 */
 711         "DLOAD_3        ", /* DLOAD_3      41 */
 712         "ALOAD_0        ", /* ALOAD_0      42 */
 713         "ALOAD_1        ", /* ALOAD_1      43 */
 714         "ALOAD_2        ", /* ALOAD_2      44 */
 715         "ALOAD_3        ", /* ALOAD_3      45 */
 716         "IALOAD         ", /*              46 */
 717         "LALOAD         ", /*              47 */
 718         "FALOAD         ", /*              48 */
 719         "DALOAD         ", /*              49 */
 720         "AALOAD         ", /*              50 */
 721         "BALOAD         ", /*              51 */
 722         "CALOAD         ", /*              52 */
 723         "SALOAD         ", /*              53 */
 724         "ISTORE         ", /*              54 */
 725         "LSTORE         ", /*              55 */
 726         "FSTORE         ", /*              56 */
 727         "DSTORE         ", /*              57 */
 728         "ASTORE         ", /*              58 */
 729         "ISTORE_0       ", /* ISTORE_0     59 */
 730         "ISTORE_1       ", /* ISTORE_1     60 */
 731         "ISTORE_2       ", /* ISTORE_2     61 */
 732         "ISTORE_3       ", /* ISTORE_3     62 */
 733         "LSTORE_0       ", /* LSTORE_0     63 */
 734         "LSTORE_1       ", /* LSTORE_1     64 */
 735         "LSTORE_2       ", /* LSTORE_2     65 */
 736         "LSTORE_3       ", /* LSTORE_3     66 */
 737         "FSTORE_0       ", /* FSTORE_0     67 */
 738         "FSTORE_1       ", /* FSTORE_1     68 */
 739         "FSTORE_2       ", /* FSTORE_2     69 */
 740         "FSTORE_3       ", /* FSTORE_3     70 */
 741         "DSTORE_0       ", /* DSTORE_0     71 */
 742         "DSTORE_1       ", /* DSTORE_1     72 */
 743         "DSTORE_2       ", /* DSTORE_2     73 */
 744         "DSTORE_3       ", /* DSTORE_3     74 */
 745         "ASTORE_0       ", /* ASTORE_0     75 */
 746         "ASTORE_1       ", /* ASTORE_1     76 */
 747         "ASTORE_2       ", /* ASTORE_2     77 */
 748         "ASTORE_3       ", /* ASTORE_3     78 */
 749         "IASTORE        ", /*              79 */
 750         "LASTORE        ", /*              80 */
 751         "FASTORE        ", /*              81 */
 752         "DASTORE        ", /*              82 */
 753         "AASTORE        ", /*              83 */
 754         "BASTORE        ", /*              84 */
 755         "CASTORE        ", /*              85 */
 756         "SASTORE        ", /*              86 */
 757         "POP            ", /*              87 */
 758         "POP2           ", /*              88 */
 759         "DUP            ", /*              89 */
 760         "DUP_X1         ", /*              90 */
 761         "DUP_X2         ", /*              91 */
 762         "DUP2           ", /*              92 */
 763         "DUP2_X1        ", /*              93 */
 764         "DUP2_X2        ", /*              94 */
 765         "SWAP           ", /*              95 */
 766         "IADD           ", /*              96 */
 767         "LADD           ", /*              97 */
 768         "FADD           ", /*              98 */
 769         "DADD           ", /*              99 */
 770         "ISUB           ", /*             100 */
 771         "LSUB           ", /*             101 */
 772         "FSUB           ", /*             102 */
 773         "DSUB           ", /*             103 */
 774         "IMUL           ", /*             104 */
 775         "LMUL           ", /*             105 */
 776         "FMUL           ", /*             106 */
 777         "DMUL           ", /*             107 */
 778         "IDIV           ", /*             108 */
 779         "LDIV           ", /*             109 */
 780         "FDIV           ", /*             110 */
 781         "DDIV           ", /*             111 */
 782         "IREM           ", /*             112 */
 783         "LREM           ", /*             113 */
 784         "FREM           ", /*             114 */
 785         "DREM           ", /*             115 */
 786         "INEG           ", /*             116 */
 787         "LNEG           ", /*             117 */
 788         "FNEG           ", /*             118 */
 789         "DNEG           ", /*             119 */
 790         "ISHL           ", /*             120 */
 791         "LSHL           ", /*             121 */
 792         "ISHR           ", /*             122 */
 793         "LSHR           ", /*             123 */
 794         "IUSHR          ", /*             124 */
 795         "LUSHR          ", /*             125 */
 796         "IAND           ", /*             126 */
 797         "LAND           ", /*             127 */
 798         "IOR            ", /*             128 */
 799         "LOR            ", /*             129 */
 800         "IXOR           ", /*             130 */
 801         "LXOR           ", /*             131 */
 802         "IINC           ", /*             132 */
 803         "I2L            ", /*             133 */
 804         "I2F            ", /*             134 */
 805         "I2D            ", /*             135 */
 806         "L2I            ", /*             136 */
 807         "L2F            ", /*             137 */
 808         "L2D            ", /*             138 */
 809         "F2I            ", /*             139 */
 810         "F2L            ", /*             140 */
 811         "F2D            ", /*             141 */
 812         "D2I            ", /*             142 */
 813         "D2L            ", /*             143 */
 814         "D2F            ", /*             144 */
 815         "INT2BYTE       ", /*             145 */
 816         "INT2CHAR       ", /*             146 */
 817         "INT2SHORT      ", /*             147 */
 818         "LCMP           ", /*             148 */
 819         "FCMPL          ", /*             149 */
 820         "FCMPG          ", /*             150 */
 821         "DCMPL          ", /*             151 */
 822         "DCMPG          ", /*             152 */
 823         "IFEQ           ", /*             153 */
 824         "IFNE           ", /*             154 */
 825         "IFLT           ", /*             155 */
 826         "IFGE           ", /*             156 */
 827         "IFGT           ", /*             157 */
 828         "IFLE           ", /*             158 */
 829         "IF_ICMPEQ      ", /*             159 */
 830         "IF_ICMPNE      ", /*             160 */
 831         "IF_ICMPLT      ", /*             161 */
 832         "IF_ICMPGE      ", /*             162 */
 833         "IF_ICMPGT      ", /*             163 */
 834         "IF_ICMPLE      ", /*             164 */
 835         "IF_ACMPEQ      ", /*             165 */
 836         "IF_ACMPNE      ", /*             166 */
 837         "GOTO           ", /*             167 */
 838         "JSR            ", /*             168 */
 839         "RET            ", /*             169 */
 840         "TABLESWITCH    ", /*             170 */
 841         "LOOKUPSWITCH   ", /*             171 */
 842         "IRETURN        ", /*             172 */
 843         "LRETURN        ", /*             173 */
 844         "FRETURN        ", /*             174 */
 845         "DRETURN        ", /*             175 */
 846         "ARETURN        ", /*             176 */
 847         "RETURN         ", /*             177 */
 848         "GETSTATIC      ", /*             178 */
 849         "PUTSTATIC      ", /*             179 */
 850         "GETFIELD       ", /*             180 */
 851         "PUTFIELD       ", /*             181 */
 852         "INVOKEVIRTUAL  ", /*             182 */
 853         "INVOKESPECIAL  ", /*             183 */
 854         "INVOKESTATIC   ", /*             184 */
 855         "INVOKEINTERFACE", /*             185 */
 856         "UNDEF186       ", /*             186 */
 857         "NEW            ", /*             187 */
 858         "NEWARRAY       ", /*             188 */
 859         "ANEWARRAY      ", /*             189 */
 860         "ARRAYLENGTH    ", /*             190 */
 861         "ATHROW         ", /*             191 */
 862         "CHECKCAST      ", /*             192 */
 863         "INSTANCEOF     ", /*             193 */
 864         "MONITORENTER   ", /*             194 */
 865         "MONITOREXIT    ", /*             195 */
 866         "WIDE           ", /* WIDE        196 */
 867         "MULTIANEWARRAY ", /*             197 */
 868         "IFNULL         ", /*             198 */
 869         "IFNONNULL      ", /*             199 */
 870         "GOTO_W         ", /* GOTO_W      200 */
 871         "JSR_W          ", /* JSR_W       201 */
 872         "BREAKPOINT     ", /* BREAKPOINT  202 */
 873
 874                                 "UNDEF203", "UNDEF204", "UNDEF205",
 875         "UNDEF206", "UNDEF207", "UNDEF208", "UNDEF209", "UNDEF210",
 876         "UNDEF211", "UNDEF212", "UNDEF213", "UNDEF214", "UNDEF215",
 877         "UNDEF216", "UNDEF217", "UNDEF218", "UNDEF219", "UNDEF220",
 878         "UNDEF221", "UNDEF222", "UNDEF223", "UNDEF224", "UNDEF225",
 879         "UNDEF226", "UNDEF227", "UNDEF228", "UNDEF229", "UNDEF230",
 880         "UNDEF231", "UNDEF232", "UNDEF233", "UNDEF234", "UNDEF235",
 881         "UNDEF236", "UNDEF237", "UNDEF238", "UNDEF239", "UNDEF240",
 882         "UNDEF241", "UNDEF242", "UNDEF243", "UNDEF244", "UNDEF245",
 883         "UNDEF246", "UNDEF247", "UNDEF248", "UNDEF249", "UNDEF250",
 884         "UNDEF251", "UNDEF252", "UNDEF253", "UNDEF254", "UNDEF255"
 885 };
 886
 887
 888 /* jit_init ********************************************************************
 889
 890    Initializes the JIT subsystem.
 891
 892 *******************************************************************************/
 893
 894 void jit_init(void)
 895 {
 896 #if defined(ENABLE_JIT)
 897         /* initialize stack analysis subsystem */
 898
 899         (void) stack_init();
 900 #endif
 901
 902         /* initialize show subsystem */
 903
 904 #if !defined(NDEBUG)
 905         (void) show_init();
 906 #endif
 907
 908         /* initialize codegen subsystem */
 909
 910         codegen_init();
 911 }
 912
 913
 914 /* jit_close *******************************************************************
 915
 916    Close the JIT subsystem.
 917
 918 *******************************************************************************/
 919
 920 void jit_close(void)
 921 {
 922         /* do nothing */
 923 }
 924
 925
 926 /* dummy function, used when there is no JavaVM code available                */
 927
 928 static u1 *do_nothing_function(void)
 929 {
 930         return NULL;
 931 }
 932
 933
 934 /* jit_jitdata_new *************************************************************
 935
 936    Allocates and initalizes a new jitdata structure.
 937
 938 *******************************************************************************/
 939
 940 static jitdata *jit_jitdata_new(methodinfo *m)
 941 {
 942         jitdata *jd;
 943
 944         /* allocate jitdata structure and fill it */
 945
 946         jd = DNEW(jitdata);
 947
 948         jd->m     = m;
 949         jd->cd    = DNEW(codegendata);
 950         jd->rd    = DNEW(registerdata);
 951 #if defined(ENABLE_LOOP)
 952         jd->ld    = DNEW(loopdata);
 953 #endif
 954
 955         /* Allocate codeinfo memory from the heap as we need to keep them. */
 956
 957         jd->code  = code_codeinfo_new(m);
 958
 959         /* initialize variables */
 960
 961         jd->flags = 0;
 962         jd->isleafmethod = true;
 963         jd->exceptiontable = NULL;
 964         jd->exceptiontablelength = 0;
 965
 966         return jd;
 967 }
 968
 969
 970 /* jit_compile *****************************************************************
 971
 972    Translates one method to machine code.
 973
 974 *******************************************************************************/
 975
 976 static u1 *jit_compile_intern(jitdata *jd);
 977
 978 u1 *jit_compile(methodinfo *m)
 979 {
 980         u1      *r;
 981         jitdata *jd;
 982         s4       dumpsize;
 983
 984         STATISTICS(count_jit_calls++);
 985
 986         /* Initialize the static function's class. */
 987
 988         /* ATTENTION: This MUST be done before the method lock is aquired,
 989            otherwise we could run into a deadlock with <clinit>'s that
 990            call static methods of it's own class. */
 991
 992         if ((m->flags & ACC_STATIC) && !(m->class->state & CLASS_INITIALIZED)) {
 993 #if !defined(NDEBUG)
 994                 if (initverbose)
 995                         log_message_class("Initialize class ", m->class);
 996 #endif
 997
 998                 if (!initialize_class(m->class))
 999                         return NULL;
1000
1001                 /* check if the method has been compiled during initialization */
1002
1003                 if ((m->code != NULL) && (m->code->entrypoint != NULL))
1004                         return m->code->entrypoint;
1005         }
1006
1007         /* enter a monitor on the method */
1008
1009         LOCK_MONITOR_ENTER(m);
1010
1011         /* if method has been already compiled return immediately */
1012
1013         if (m->code != NULL) {
1014                 LOCK_MONITOR_EXIT(m);
1015
1016                 assert(m->code->entrypoint);
1017                 return m->code->entrypoint;
1018         }
1019
1020         STATISTICS(count_methods++);
1021
1022 #if defined(ENABLE_STATISTICS)
1023         /* measure time */
1024
1025         if (opt_getcompilingtime)
1026                 compilingtime_start();
1027 #endif
1028
1029         /* mark start of dump memory area */
1030
1031         dumpsize = dump_size();
1032
1033         /* create jitdata structure */
1034
1035         jd = jit_jitdata_new(m);
1036
1037         /* set the flags for the current JIT run */
1038
1039         jd->flags = JITDATA_FLAG_PARSE;
1040
1041 #if defined(ENABLE_VERIFIER)
1042         if (opt_verify)
1043                 jd->flags |= JITDATA_FLAG_VERIFY;
1044 #endif
1045
1046 #if defined(ENABLE_PROFILING)
1047         if (opt_prof)
1048                 jd->flags |= JITDATA_FLAG_INSTRUMENT;
1049 #endif
1050
1051 #if defined(ENABLE_IFCONV)
1052         if (opt_ifconv)
1053                 jd->flags |= JITDATA_FLAG_IFCONV;
1054 #endif
1055
1056         if (opt_showintermediate)
1057                 jd->flags |= JITDATA_FLAG_SHOWINTERMEDIATE;
1058
1059         if (opt_showdisassemble)
1060                 jd->flags |= JITDATA_FLAG_SHOWDISASSEMBLE;
1061
1062         if (opt_verbosecall)
1063                 jd->flags |= JITDATA_FLAG_VERBOSECALL;
1064
1065 #if defined(ENABLE_JIT)
1066 # if defined(ENABLE_INTRP)
1067         if (!opt_intrp)
1068 # endif
1069                 /* initialize the register allocator */
1070         {
1071                 reg_setup(jd);
1072         }
1073 #endif
1074
1075         /* setup the codegendata memory */
1076
1077         codegen_setup(jd);
1078
1079         /* now call internal compile function */
1080
1081         r = jit_compile_intern(jd);
1082
1083         if (r == NULL) {
1084                 /* We had an exception! Finish stuff here if necessary. */
1085
1086                 /* release codeinfo */
1087
1088                 code_codeinfo_free(jd->code);
1089
1090                 /* Release memory for basic block profiling information. */
1091
1092                 if (JITDATA_HAS_FLAG_INSTRUMENT(jd))
1093                         if (jd->code->bbfrequency != NULL)
1094                                 MFREE(jd->code->bbfrequency, u4, jd->code->basicblockcount);
1095         }
1096         else {
1097                 DEBUG_JIT_COMPILEVERBOSE("Running: ");
1098         }
1099
1100         /* release dump area */
1101
1102         dump_release(dumpsize);
1103
1104 #if defined(ENABLE_STATISTICS)
1105         /* measure time */
1106
1107         if (opt_getcompilingtime)
1108                 compilingtime_stop();
1109 #endif
1110
1111         /* leave the monitor */
1112
1113         LOCK_MONITOR_EXIT(m);
1114
1115         /* return pointer to the methods entry point */
1116
1117         return r;
1118 }
1119
1120
1121 /* jit_recompile ***************************************************************
1122
1123    Recompiles a Java method.
1124
1125 *******************************************************************************/
1126
1127 u1 *jit_recompile(methodinfo *m)
1128 {
1129         u1      *r;
1130         jitdata *jd;
1131         u1       optlevel;
1132         s4       dumpsize;
1133
1134         /* check for max. optimization level */
1135
1136         optlevel = m->code->optlevel;
1137
1138         if (optlevel == 1) {
1139 /*              log_message_method("not recompiling: ", m); */
1140                 return NULL;
1141         }
1142
1143         log_message_method("Recompiling start: ", m);
1144
1145         STATISTICS(count_jit_calls++);
1146
1147 #if defined(ENABLE_STATISTICS)
1148         /* measure time */
1149
1150         if (opt_getcompilingtime)
1151                 compilingtime_start();
1152 #endif
1153
1154         /* mark start of dump memory area */
1155
1156         dumpsize = dump_size();
1157
1158         /* create jitdata structure */
1159
1160         jd = jit_jitdata_new(m);
1161
1162         /* set the current optimization level to the previous one plus 1 */
1163
1164         jd->code->optlevel = optlevel + 1;
1165
1166         /* get the optimization flags for the current JIT run */
1167
1168 #if defined(ENABLE_VERIFIER)
1169         jd->flags |= JITDATA_FLAG_VERIFY;
1170 #endif
1171
1172         jd->flags |= JITDATA_FLAG_REORDER;
1173         jd->flags |= JITDATA_FLAG_SHOWINTERMEDIATE;
1174         jd->flags |= JITDATA_FLAG_SHOWDISASSEMBLE;
1175 /*      jd->flags |= JITDATA_FLAG_VERBOSECALL; */
1176
1177 #if defined(ENABLE_JIT)
1178 # if defined(ENABLE_INTRP)
1179         if (!opt_intrp)
1180 # endif
1181                 /* initialize the register allocator */
1182
1183                 reg_setup(jd);
1184 #endif
1185
1186         /* setup the codegendata memory */
1187
1188         codegen_setup(jd);
1189
1190         /* now call internal compile function */
1191
1192         r = jit_compile_intern(jd);
1193
1194         if (r == NULL) {
1195                 /* We had an exception! Finish stuff here if necessary. */
1196
1197                 /* release codeinfo */
1198
1199                 code_codeinfo_free(jd->code);
1200         }
1201
1202         /* release dump area */
1203
1204         dump_release(dumpsize);
1205
1206 #if defined(ENABLE_STATISTICS)
1207         /* measure time */
1208
1209         if (opt_getcompilingtime)
1210                 compilingtime_stop();
1211 #endif
1212
1213         log_message_method("Recompiling done: ", m);
1214
1215         /* return pointer to the methods entry point */
1216
1217         return r;
1218 }
1219
1220
1221 /* jit_compile_intern **********************************************************
1222
1223    Static internal function which does the actual compilation.
1224
1225 *******************************************************************************/
1226
1227 static u1 *jit_compile_intern(jitdata *jd)
1228 {
1229         methodinfo  *m;
1230         codegendata *cd;
1231         codeinfo    *code;
1232
1233 #if defined(ENABLE_RT_TIMING)
1234         struct timespec time_start,time_checks,time_parse,time_stack,
1235                                         time_typecheck,time_loop,time_ifconv,time_alloc,
1236                                         time_rplpoints,time_codegen;
1237 #endif
1238
1239         RT_TIMING_GET_TIME(time_start);
1240
1241         /* get required compiler data */
1242
1243 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
1244         jd->ls = NULL;
1245 #endif
1246         m    = jd->m;
1247         code = jd->code;
1248         cd   = jd->cd;
1249
1250         /* print log message for compiled method */
1251
1252         DEBUG_JIT_COMPILEVERBOSE("Compiling: ");
1253
1254         /* handle native methods and create a native stub */
1255
1256         if (m->flags & ACC_NATIVE) {
1257                 functionptr f;
1258
1259 #if defined(WITH_STATIC_CLASSPATH)
1260                 f = native_findfunction(m->class->name, m->name, m->descriptor,
1261                                                                 (m->flags & ACC_STATIC));
1262                 if (f == NULL)
1263                         return NULL;
1264 #else
1265                 f = NULL;
1266 #endif
1267
1268                 code = codegen_createnativestub(f, m);
1269
1270                 assert(!m->code); /* native methods are never recompiled */
1271                 m->code = code;
1272
1273                 return code->entrypoint;
1274         }
1275
1276         /* if there is no javacode, print error message and return empty method   */
1277
1278         if (m->jcode == NULL) {
1279                 DEBUG_JIT_COMPILEVERBOSE("No code given for: ");
1280
1281                 code->entrypoint = (u1 *) (ptrint) do_nothing_function;
1282                 m->code = code;
1283
1284                 return code->entrypoint;        /* return empty method                */
1285         }
1286
1287 #if defined(ENABLE_STATISTICS)
1288         if (opt_stat) {
1289                 count_javacodesize += m->jcodelength + 18;
1290                 count_tryblocks    += jd->exceptiontablelength;
1291                 count_javaexcsize  += jd->exceptiontablelength * SIZEOF_VOID_P;
1292         }
1293 #endif
1294
1295         RT_TIMING_GET_TIME(time_checks);
1296
1297         /* call the compiler passes ***********************************************/
1298
1299         DEBUG_JIT_COMPILEVERBOSE("Parsing: ");
1300
1301         /* call parse pass */
1302
1303         if (!parse(jd)) {
1304                 DEBUG_JIT_COMPILEVERBOSE("Exception while parsing: ");
1305
1306                 return NULL;
1307         }
1308         RT_TIMING_GET_TIME(time_parse);
1309
1310         DEBUG_JIT_COMPILEVERBOSE("Parsing done: ");
1311
1312 #if defined(ENABLE_JIT)
1313 # if defined(ENABLE_INTRP)
1314         if (!opt_intrp) {
1315 # endif
1316                 DEBUG_JIT_COMPILEVERBOSE("Analysing: ");
1317
1318                 /* call stack analysis pass */
1319
1320                 if (!stack_analyse(jd)) {
1321                         DEBUG_JIT_COMPILEVERBOSE("Exception while analysing: ");
1322
1323                         return NULL;
1324                 }
1325                 RT_TIMING_GET_TIME(time_stack);
1326
1327                 DEBUG_JIT_COMPILEVERBOSE("Analysing done: ");
1328
1329                 /* Build the CFG.  This has to be done after stack_analyse, as
1330                    there happens the JSR elimination. */
1331
1332                 if (!cfg_build(jd))
1333                         return NULL;
1334
1335 #ifdef ENABLE_VERIFIER
1336                 if (JITDATA_HAS_FLAG_VERIFY(jd)) {
1337                         DEBUG_JIT_COMPILEVERBOSE("Typechecking: ");
1338
1339                         /* call typecheck pass */
1340                         if (!typecheck(jd)) {
1341                                 DEBUG_JIT_COMPILEVERBOSE("Exception while typechecking: ");
1342
1343                                 return NULL;
1344                         }
1345
1346                         DEBUG_JIT_COMPILEVERBOSE("Typechecking done: ");
1347                 }
1348 #endif
1349                 RT_TIMING_GET_TIME(time_typecheck);
1350
1351 #if defined(ENABLE_LOOP)
1352                 if (opt_loops) {
1353                         depthFirst(jd);
1354                         analyseGraph(jd);
1355                         optimize_loops(jd);
1356                         jit_renumber_basicblocks(jd);
1357                 }
1358 #endif
1359                 RT_TIMING_GET_TIME(time_loop);
1360
1361 #if defined(ENABLE_IFCONV)
1362                 if (JITDATA_HAS_FLAG_IFCONV(jd)) {
1363                         if (!ifconv_static(jd))
1364                                 return NULL;
1365                         jit_renumber_basicblocks(jd);
1366                 }
1367 #endif
1368                 RT_TIMING_GET_TIME(time_ifconv);
1369
1370                 /* Basic block reordering.  I think this should be done after
1371                    if-conversion, as we could lose the ability to do the
1372                    if-conversion. */
1373
1374                 if (JITDATA_HAS_FLAG_REORDER(jd)) {
1375                         if (!reorder(jd))
1376                                 return NULL;
1377                         jit_renumber_basicblocks(jd);
1378                 }
1379
1380                 DEBUG_JIT_COMPILEVERBOSE("Allocating registers: ");
1381
1382 #if defined(ENABLE_LSRA) && !defined(ENABLE_SSA)
1383                 /* allocate registers */
1384                 if (opt_lsra) {
1385                         if (!lsra(jd))
1386                                 return NULL;
1387
1388                         STATISTICS(count_methods_allocated_by_lsra++);
1389
1390                 } else
1391 # endif /* defined(ENABLE_LSRA) && !defined(ENABLE_SSA) */
1392 #if defined(ENABLE_SSA)
1393                 /* allocate registers */
1394                 if ((opt_lsra) && (jd->exceptiontablelength == 0)) {
1395                         jd->ls = DNEW(lsradata);
1396                         lsra(jd);
1397
1398                         STATISTICS(count_methods_allocated_by_lsra++);
1399
1400                 } else
1401 # endif /* defined(ENABLE_SSA) */
1402                 {
1403                         STATISTICS(count_locals_conflicts += (cd->maxlocals - 1) * (cd->maxlocals));
1404
1405                         regalloc(jd);
1406                 }
1407
1408                 STATISTICS(simplereg_make_statistics(jd));
1409
1410                 DEBUG_JIT_COMPILEVERBOSE("Allocating registers done: ");
1411 # if defined(ENABLE_INTRP)
1412         }
1413 # endif
1414 #endif /* defined(ENABLE_JIT) */
1415         RT_TIMING_GET_TIME(time_alloc);
1416
1417         /* Allocate memory for basic block profiling information. This
1418            _must_ be done after loop optimization and register allocation,
1419            since they can change the basic block count. */
1420
1421         if (JITDATA_HAS_FLAG_INSTRUMENT(jd))
1422                 code->bbfrequency = MNEW(u4, jd->basicblockcount);
1423
1424         DEBUG_JIT_COMPILEVERBOSE("Generating code: ");
1425
1426         /* create the replacement points */
1427 #if 0
1428         if (!replace_create_replacement_points(jd))
1429                 return NULL;
1430 #endif
1431         RT_TIMING_GET_TIME(time_rplpoints);
1432
1433         /* now generate the machine code */
1434
1435 #if defined(ENABLE_JIT)
1436 # if defined(ENABLE_INTRP)
1437         if (opt_intrp) {
1438 #if defined(ENABLE_VERIFIER)
1439                 if (opt_verify) {
1440                         DEBUG_JIT_COMPILEVERBOSE("Typechecking (stackbased): ");
1441
1442                         if (!typecheck_stackbased(jd)) {
1443                                 DEBUG_JIT_COMPILEVERBOSE("Exception while typechecking (stackbased): ");
1444                                 return NULL;
1445                         }
1446                 }
1447 #endif
1448                 if (!intrp_codegen(jd)) {
1449                         DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1450
1451                         return NULL;
1452                 }
1453         } else
1454 # endif
1455                 {
1456                         if (!codegen(jd)) {
1457                                 DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1458
1459                                 return NULL;
1460                         }
1461                 }
1462 #else
1463         if (!intrp_codegen(jd)) {
1464                 DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1465
1466                 return NULL;
1467         }
1468 #endif
1469         RT_TIMING_GET_TIME(time_codegen);
1470
1471         DEBUG_JIT_COMPILEVERBOSE("Generating code done: ");
1472
1473 #if !defined(NDEBUG)
1474         /* intermediate and assembly code listings */
1475
1476         if (JITDATA_HAS_FLAG_SHOWINTERMEDIATE(jd)) {
1477                 show_method(jd, SHOW_CODE);
1478         }
1479         else if (JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd)) {
1480 # if defined(ENABLE_DISASSEMBLER)
1481                 DISASSEMBLE(code->entrypoint,
1482                                         code->entrypoint + (code->mcodelength - cd->dseglen));
1483 # endif
1484         }
1485
1486         if (opt_showddatasegment)
1487                 dseg_display(jd);
1488 #endif
1489
1490         DEBUG_JIT_COMPILEVERBOSE("Compiling done: ");
1491
1492         /* switch to the newly generated code */
1493
1494         assert(code);
1495         assert(code->entrypoint);
1496
1497         /* add the current compile version to the methodinfo */
1498
1499         code->prev = m->code;
1500         m->code = code;
1501
1502         RT_TIMING_TIME_DIFF(time_start,time_checks,RT_TIMING_JIT_CHECKS);
1503         RT_TIMING_TIME_DIFF(time_checks,time_parse,RT_TIMING_JIT_PARSE);
1504         RT_TIMING_TIME_DIFF(time_parse,time_stack,RT_TIMING_JIT_STACK);
1505         RT_TIMING_TIME_DIFF(time_stack,time_typecheck,RT_TIMING_JIT_TYPECHECK);
1506         RT_TIMING_TIME_DIFF(time_typecheck,time_loop,RT_TIMING_JIT_LOOP);
1507         RT_TIMING_TIME_DIFF(time_loop,time_alloc,RT_TIMING_JIT_ALLOC);
1508         RT_TIMING_TIME_DIFF(time_alloc,time_rplpoints,RT_TIMING_JIT_RPLPOINTS);
1509         RT_TIMING_TIME_DIFF(time_rplpoints,time_codegen,RT_TIMING_JIT_CODEGEN);
1510         RT_TIMING_TIME_DIFF(time_start,time_codegen,RT_TIMING_JIT_TOTAL);
1511
1512         /* return pointer to the methods entry point */
1513
1514         return code->entrypoint;
1515 }
1516
1517
1518 /* jit_asm_compile *************************************************************
1519
1520    This method is called from asm_vm_call_method and does:
1521
1522      - create stackframe info for exceptions
1523      - compile the method
1524      - patch the entrypoint of the method into the calculated address in
1525        the JIT code
1526      - flushes the instruction cache.
1527
1528 *******************************************************************************/
1529
1530 #if defined(ENABLE_JIT)
1531 u1 *jit_asm_compile(methodinfo *m, u1 *mptr, u1 *sp, u1 *ra)
1532 {
1533         stackframeinfo  sfi;
1534         u1             *entrypoint;
1535         u1             *pa;
1536         ptrint         *p;
1537
1538         /* create the stackframeinfo (subtract 1 from RA as it points to the */
1539         /* instruction after the call)                                       */
1540
1541         stacktrace_create_extern_stackframeinfo(&sfi, NULL, sp, ra, ra-1);
1542
1543         /* actually compile the method */
1544
1545         entrypoint = jit_compile(m);
1546
1547         /* remove the stackframeinfo */
1548
1549         stacktrace_remove_stackframeinfo(&sfi);
1550
1551         /* there was a problem during compilation */
1552
1553         if (entrypoint == NULL)
1554                 return NULL;
1555
1556         /* get the method patch address */
1557
1558         pa = md_get_method_patch_address(ra, &sfi, mptr);
1559
1560         /* patch the method entry point */
1561
1562         p = (ptrint *) pa;
1563
1564         *p = (ptrint) entrypoint;
1565
1566         /* flush the instruction cache */
1567
1568         md_icacheflush(pa, SIZEOF_VOID_P);
1569
1570         return entrypoint;
1571 }
1572 #endif /* defined(ENABLE_JIT) */
1573
1574
1575 /* jit_complement_condition ****************************************************
1576
1577    Returns the complement of the passed conditional instruction.
1578
1579    We use the order of the different conditions, e.g.:
1580
1581    ICMD_IFEQ         153
1582    ICMD_IFNE         154
1583
1584    If the passed opcode is odd, we simply add 1 to get the complement.
1585    If the opcode is even, we subtract 1.
1586
1587    Exception:
1588
1589    ICMD_IFNULL       198
1590    ICMD_IFNONNULL    199
1591
1592 *******************************************************************************/
1593
1594 s4 jit_complement_condition(s4 opcode)
1595 {
1596         switch (opcode) {
1597         case ICMD_IFNULL:
1598                 return ICMD_IFNONNULL;
1599
1600         case ICMD_IFNONNULL:
1601                 return ICMD_IFNULL;
1602
1603         default:
1604                 /* check if opcode is odd */
1605
1606                 if (opcode & 0x1)
1607                         return opcode + 1;
1608                 else
1609                         return opcode - 1;
1610         }
1611 }
1612
1613
1614 /* jit_renumber_basicblocks ****************************************************
1615
1616    Set the ->nr of all blocks so it increases when traversing ->next.
1617
1618    IN:
1619        jitdata..........the current jitdata
1620
1621 *******************************************************************************/
1622
1623 void jit_renumber_basicblocks(jitdata *jd)
1624 {
1625         s4          nr;
1626         basicblock *bptr;
1627
1628         nr = 0;
1629         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
1630                 bptr->nr = nr++;
1631         }
1632
1633         /* we have one block more than jd->basicblockcount (the end marker) */
1634
1635         assert(nr == jd->basicblockcount + 1);
1636 }
1637
1638
1639 /* jit_check_basicblock_numbers ************************************************
1640
1641    Assert that the ->nr of the first block is zero and increases by 1 each
1642    time ->next is traversed.
1643    This function should be called before any analysis that relies on
1644    the basicblock numbers.
1645
1646    IN:
1647        jitdata..........the current jitdata
1648
1649    NOTE: Aborts with an assertion if the condition is not met!
1650
1651 *******************************************************************************/
1652
1653 #if !defined(NDEBUG)
1654 void jit_check_basicblock_numbers(jitdata *jd)
1655 {
1656         s4          nr;
1657         basicblock *bptr;
1658
1659         nr = 0;
1660         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
1661                 assert(bptr->nr == nr);
1662                 nr++;
1663         }
1664
1665         /* we have one block more than jd->basicblockcount (the end marker) */
1666
1667         assert(nr == jd->basicblockcount + 1);
1668 }
1669 #endif /* !defined(NDEBUG) */
1670
1671
1672 /*
1673  * These are local overrides for various environment variables in Emacs.
1674  * Please do not remove this and leave it at the end of the file, where
1675  * Emacs will automagically detect them.
1676  * ---------------------------------------------------------------------
1677  * Local variables:
1678  * mode: c
1679  * indent-tabs-mode: t
1680  * c-basic-offset: 4
1681  * tab-width: 4
1682  * End:
1683  * vim:noexpandtab:sw=4:ts=4:
1684  */