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 5924 2006-11-05 22:47:23Z edwin $
  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/show.h"
  73 #include "vm/jit/stack.h"
  74
  75 #include "vm/jit/allocator/simplereg.h"
  76 #if defined(ENABLE_LSRA) && !defined(ENABLE_SSA)
  77 # include "vm/jit/allocator/lsra.h"
  78 #endif
  79 #if defined(ENABLE_SSA)
  80 # include "vm/jit/optimizing/lsra.h"
  81 # include "vm/jit/optimizing/ssa.h"
  82 #endif
  83
  84 #include "vm/jit/loop/analyze.h"
  85 #include "vm/jit/loop/graph.h"
  86 #include "vm/jit/loop/loop.h"
  87
  88 #if defined(ENABLE_IFCONV)
  89 # include "vm/jit/optimizing/ifconv.h"
  90 #endif
  91
  92 #include "vm/jit/optimizing/reorder.h"
  93
  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         1+3,  /* JAVA_DUP_X1                     90 */
 251         2+4,  /* JAVA_DUP_X2                     91 */
 252         2,    /* JAVA_DUP2                       92 */
 253         2+5,  /* JAVA_DUP2_X1                    93 */
 254         3+6,  /* JAVA_DUP2_X2                    94 */
 255         1+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 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->exceptiontable = NULL;
 963         jd->exceptiontablelength = 0;
 964         jd->returncount = 0;
 965         jd->branchtoentry = false;
 966         jd->branchtoend = false;
 967         jd->returncount = 0;
 968         jd->returnblock = NULL;
 969         jd->maxlocals = m->maxlocals;
 970
 971 #if defined(ENABLE_THREADS)
 972         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 973                 jd->isleafmethod = false;
 974         else
 975 #endif
 976                 jd->isleafmethod = true;
 977
 978         return jd;
 979 }
 980
 981
 982 /* jit_compile *****************************************************************
 983
 984    Translates one method to machine code.
 985
 986 *******************************************************************************/
 987
 988 static u1 *jit_compile_intern(jitdata *jd);
 989
 990 u1 *jit_compile(methodinfo *m)
 991 {
 992         u1      *r;
 993         jitdata *jd;
 994         s4       dumpsize;
 995
 996         STATISTICS(count_jit_calls++);
 997
 998         /* Initialize the static function's class. */
 999
1000         /* ATTENTION: This MUST be done before the method lock is aquired,
1001            otherwise we could run into a deadlock with <clinit>'s that
1002            call static methods of it's own class. */
1003
1004         if ((m->flags & ACC_STATIC) && !(m->class->state & CLASS_INITIALIZED)) {
1005 #if !defined(NDEBUG)
1006                 if (initverbose)
1007                         log_message_class("Initialize class ", m->class);
1008 #endif
1009
1010                 if (!initialize_class(m->class))
1011                         return NULL;
1012
1013                 /* check if the method has been compiled during initialization */
1014
1015                 if ((m->code != NULL) && (m->code->entrypoint != NULL))
1016                         return m->code->entrypoint;
1017         }
1018
1019         /* enter a monitor on the method */
1020
1021         LOCK_MONITOR_ENTER(m);
1022
1023         /* if method has been already compiled return immediately */
1024
1025         if (m->code != NULL) {
1026                 LOCK_MONITOR_EXIT(m);
1027
1028                 assert(m->code->entrypoint);
1029                 return m->code->entrypoint;
1030         }
1031
1032         STATISTICS(count_methods++);
1033
1034 #if defined(ENABLE_STATISTICS)
1035         /* measure time */
1036
1037         if (opt_getcompilingtime)
1038                 compilingtime_start();
1039 #endif
1040
1041         /* mark start of dump memory area */
1042
1043         dumpsize = dump_size();
1044
1045         /* create jitdata structure */
1046
1047         jd = jit_jitdata_new(m);
1048
1049         /* set the flags for the current JIT run */
1050
1051         jd->flags = JITDATA_FLAG_PARSE;
1052
1053 #if defined(ENABLE_VERIFIER)
1054         if (opt_verify)
1055                 jd->flags |= JITDATA_FLAG_VERIFY;
1056 #endif
1057
1058 #if defined(ENABLE_PROFILING)
1059         if (opt_prof)
1060                 jd->flags |= JITDATA_FLAG_INSTRUMENT;
1061 #endif
1062
1063 #if defined(ENABLE_IFCONV)
1064         if (opt_ifconv)
1065                 jd->flags |= JITDATA_FLAG_IFCONV;
1066 #endif
1067
1068         if (opt_showintermediate)
1069                 jd->flags |= JITDATA_FLAG_SHOWINTERMEDIATE;
1070
1071         if (opt_showdisassemble)
1072                 jd->flags |= JITDATA_FLAG_SHOWDISASSEMBLE;
1073
1074         if (opt_verbosecall)
1075                 jd->flags |= JITDATA_FLAG_VERBOSECALL;
1076
1077 #if defined(ENABLE_JIT)
1078 # if defined(ENABLE_INTRP)
1079         if (!opt_intrp)
1080 # endif
1081                 /* initialize the register allocator */
1082         {
1083                 reg_setup(jd);
1084         }
1085 #endif
1086
1087         /* setup the codegendata memory */
1088
1089         codegen_setup(jd);
1090
1091         /* now call internal compile function */
1092
1093         r = jit_compile_intern(jd);
1094
1095         if (r == NULL) {
1096                 /* We had an exception! Finish stuff here if necessary. */
1097
1098                 /* release codeinfo */
1099
1100                 code_codeinfo_free(jd->code);
1101
1102                 /* Release memory for basic block profiling information. */
1103
1104                 if (JITDATA_HAS_FLAG_INSTRUMENT(jd))
1105                         if (jd->code->bbfrequency != NULL)
1106                                 MFREE(jd->code->bbfrequency, u4, jd->code->basicblockcount);
1107         }
1108         else {
1109                 DEBUG_JIT_COMPILEVERBOSE("Running: ");
1110         }
1111
1112         /* release dump area */
1113
1114         dump_release(dumpsize);
1115
1116 #if defined(ENABLE_STATISTICS)
1117         /* measure time */
1118
1119         if (opt_getcompilingtime)
1120                 compilingtime_stop();
1121 #endif
1122
1123         /* leave the monitor */
1124
1125         LOCK_MONITOR_EXIT(m);
1126
1127         /* return pointer to the methods entry point */
1128
1129         return r;
1130 }
1131
1132
1133 /* jit_recompile ***************************************************************
1134
1135    Recompiles a Java method.
1136
1137 *******************************************************************************/
1138
1139 u1 *jit_recompile(methodinfo *m)
1140 {
1141         u1      *r;
1142         jitdata *jd;
1143         u1       optlevel;
1144         s4       dumpsize;
1145
1146         /* check for max. optimization level */
1147
1148         optlevel = m->code->optlevel;
1149
1150         if (optlevel == 1) {
1151 /*              log_message_method("not recompiling: ", m); */
1152                 return NULL;
1153         }
1154
1155         log_message_method("Recompiling start: ", m);
1156
1157         STATISTICS(count_jit_calls++);
1158
1159 #if defined(ENABLE_STATISTICS)
1160         /* measure time */
1161
1162         if (opt_getcompilingtime)
1163                 compilingtime_start();
1164 #endif
1165
1166         /* mark start of dump memory area */
1167
1168         dumpsize = dump_size();
1169
1170         /* create jitdata structure */
1171
1172         jd = jit_jitdata_new(m);
1173
1174         /* set the current optimization level to the previous one plus 1 */
1175
1176         jd->code->optlevel = optlevel + 1;
1177
1178         /* get the optimization flags for the current JIT run */
1179
1180 #if defined(ENABLE_VERIFIER)
1181         jd->flags |= JITDATA_FLAG_VERIFY;
1182 #endif
1183
1184         jd->flags |= JITDATA_FLAG_REORDER;
1185         jd->flags |= JITDATA_FLAG_SHOWINTERMEDIATE;
1186         jd->flags |= JITDATA_FLAG_SHOWDISASSEMBLE;
1187 /*      jd->flags |= JITDATA_FLAG_VERBOSECALL; */
1188
1189 #if defined(ENABLE_JIT)
1190 # if defined(ENABLE_INTRP)
1191         if (!opt_intrp)
1192 # endif
1193                 /* initialize the register allocator */
1194
1195                 reg_setup(jd);
1196 #endif
1197
1198         /* setup the codegendata memory */
1199
1200         codegen_setup(jd);
1201
1202         /* now call internal compile function */
1203
1204         r = jit_compile_intern(jd);
1205
1206         if (r == NULL) {
1207                 /* We had an exception! Finish stuff here if necessary. */
1208
1209                 /* release codeinfo */
1210
1211                 code_codeinfo_free(jd->code);
1212         }
1213
1214         /* release dump area */
1215
1216         dump_release(dumpsize);
1217
1218 #if defined(ENABLE_STATISTICS)
1219         /* measure time */
1220
1221         if (opt_getcompilingtime)
1222                 compilingtime_stop();
1223 #endif
1224
1225         log_message_method("Recompiling done: ", m);
1226
1227         /* return pointer to the methods entry point */
1228
1229         return r;
1230 }
1231
1232
1233 /* jit_compile_intern **********************************************************
1234
1235    Static internal function which does the actual compilation.
1236
1237 *******************************************************************************/
1238
1239 static u1 *jit_compile_intern(jitdata *jd)
1240 {
1241         methodinfo  *m;
1242         codegendata *cd;
1243         codeinfo    *code;
1244
1245 #if defined(ENABLE_RT_TIMING)
1246         struct timespec time_start,time_checks,time_parse,time_stack,
1247                                         time_typecheck,time_loop,time_ifconv,time_alloc,
1248                                         time_rplpoints,time_codegen;
1249 #endif
1250
1251         RT_TIMING_GET_TIME(time_start);
1252
1253         /* get required compiler data */
1254
1255 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
1256         jd->ls = NULL;
1257 #endif
1258         m    = jd->m;
1259         code = jd->code;
1260         cd   = jd->cd;
1261
1262         /* print log message for compiled method */
1263
1264         DEBUG_JIT_COMPILEVERBOSE("Compiling: ");
1265
1266         /* handle native methods and create a native stub */
1267
1268         if (m->flags & ACC_NATIVE) {
1269                 functionptr f;
1270
1271 #if defined(WITH_STATIC_CLASSPATH)
1272                 f = native_findfunction(m->class->name, m->name, m->descriptor,
1273                                                                 (m->flags & ACC_STATIC));
1274                 if (f == NULL)
1275                         return NULL;
1276 #else
1277                 f = NULL;
1278 #endif
1279
1280                 code = codegen_createnativestub(f, m);
1281
1282                 assert(!m->code); /* native methods are never recompiled */
1283                 m->code = code;
1284
1285                 return code->entrypoint;
1286         }
1287
1288         /* if there is no javacode, print error message and return empty method   */
1289
1290         if (m->jcode == NULL) {
1291                 DEBUG_JIT_COMPILEVERBOSE("No code given for: ");
1292
1293                 code->entrypoint = (u1 *) (ptrint) do_nothing_function;
1294                 m->code = code;
1295
1296                 return code->entrypoint;        /* return empty method                */
1297         }
1298
1299 #if defined(ENABLE_STATISTICS)
1300         if (opt_stat) {
1301                 count_javacodesize += m->jcodelength + 18;
1302                 count_tryblocks    += jd->exceptiontablelength;
1303                 count_javaexcsize  += jd->exceptiontablelength * SIZEOF_VOID_P;
1304         }
1305 #endif
1306
1307         RT_TIMING_GET_TIME(time_checks);
1308
1309         /* call the compiler passes ***********************************************/
1310
1311         DEBUG_JIT_COMPILEVERBOSE("Parsing: ");
1312
1313         /* call parse pass */
1314
1315         if (!parse(jd)) {
1316                 DEBUG_JIT_COMPILEVERBOSE("Exception while parsing: ");
1317
1318                 return NULL;
1319         }
1320         RT_TIMING_GET_TIME(time_parse);
1321
1322         DEBUG_JIT_COMPILEVERBOSE("Parsing done: ");
1323
1324 #if defined(ENABLE_JIT)
1325 # if defined(ENABLE_INTRP)
1326         if (!opt_intrp) {
1327 # endif
1328                 DEBUG_JIT_COMPILEVERBOSE("Analysing: ");
1329
1330                 /* call stack analysis pass */
1331
1332                 if (!stack_analyse(jd)) {
1333                         DEBUG_JIT_COMPILEVERBOSE("Exception while analysing: ");
1334
1335                         return NULL;
1336                 }
1337                 RT_TIMING_GET_TIME(time_stack);
1338
1339                 DEBUG_JIT_COMPILEVERBOSE("Analysing done: ");
1340
1341                 /* Build the CFG.  This has to be done after stack_analyse, as
1342                    there happens the JSR elimination. */
1343
1344                 if (!cfg_build(jd))
1345                         return NULL;
1346
1347 #ifdef ENABLE_VERIFIER
1348                 if (JITDATA_HAS_FLAG_VERIFY(jd)) {
1349                         DEBUG_JIT_COMPILEVERBOSE("Typechecking: ");
1350
1351                         /* call typecheck pass */
1352                         if (!typecheck(jd)) {
1353                                 DEBUG_JIT_COMPILEVERBOSE("Exception while typechecking: ");
1354
1355                                 return NULL;
1356                         }
1357
1358                         DEBUG_JIT_COMPILEVERBOSE("Typechecking done: ");
1359                 }
1360 #endif
1361                 RT_TIMING_GET_TIME(time_typecheck);
1362
1363 #if defined(ENABLE_LOOP)
1364                 if (opt_loops) {
1365                         depthFirst(jd);
1366                         analyseGraph(jd);
1367                         optimize_loops(jd);
1368                         jit_renumber_basicblocks(jd);
1369                 }
1370 #endif
1371                 RT_TIMING_GET_TIME(time_loop);
1372
1373 #if defined(ENABLE_IFCONV)
1374                 if (JITDATA_HAS_FLAG_IFCONV(jd)) {
1375                         if (!ifconv_static(jd))
1376                                 return NULL;
1377                         jit_renumber_basicblocks(jd);
1378                 }
1379 #endif
1380                 RT_TIMING_GET_TIME(time_ifconv);
1381
1382                 /* Basic block reordering.  I think this should be done after
1383                    if-conversion, as we could lose the ability to do the
1384                    if-conversion. */
1385
1386                 if (JITDATA_HAS_FLAG_REORDER(jd)) {
1387                         if (!reorder(jd))
1388                                 return NULL;
1389                         jit_renumber_basicblocks(jd);
1390                 }
1391
1392                 DEBUG_JIT_COMPILEVERBOSE("Allocating registers: ");
1393
1394 #if defined(ENABLE_LSRA) && !defined(ENABLE_SSA)
1395                 /* allocate registers */
1396                 if (opt_lsra) {
1397                         if (!lsra(jd))
1398                                 return NULL;
1399
1400                         STATISTICS(count_methods_allocated_by_lsra++);
1401
1402                 } else
1403 # endif /* defined(ENABLE_LSRA) && !defined(ENABLE_SSA) */
1404 #if defined(ENABLE_SSA)
1405                 /* allocate registers */
1406                 if ((opt_lsra) && (jd->exceptiontablelength == 0)) {
1407                         jd->ls = DNEW(lsradata);
1408                         lsra(jd);
1409
1410                         STATISTICS(count_methods_allocated_by_lsra++);
1411
1412                 } else
1413 # endif /* defined(ENABLE_SSA) */
1414                 {
1415                         STATISTICS(count_locals_conflicts += (cd->maxlocals - 1) * (cd->maxlocals));
1416
1417                         regalloc(jd);
1418                 }
1419
1420                 STATISTICS(simplereg_make_statistics(jd));
1421
1422                 DEBUG_JIT_COMPILEVERBOSE("Allocating registers done: ");
1423 # if defined(ENABLE_INTRP)
1424         }
1425 # endif
1426 #endif /* defined(ENABLE_JIT) */
1427         RT_TIMING_GET_TIME(time_alloc);
1428
1429         /* Allocate memory for basic block profiling information. This
1430            _must_ be done after loop optimization and register allocation,
1431            since they can change the basic block count. */
1432
1433         if (JITDATA_HAS_FLAG_INSTRUMENT(jd))
1434                 code->bbfrequency = MNEW(u4, jd->basicblockcount);
1435
1436         DEBUG_JIT_COMPILEVERBOSE("Generating code: ");
1437
1438         /* create the replacement points */
1439         if (!replace_create_replacement_points(jd))
1440                 return NULL;
1441         RT_TIMING_GET_TIME(time_rplpoints);
1442
1443         /* now generate the machine code */
1444
1445 #if defined(ENABLE_JIT)
1446 # if defined(ENABLE_INTRP)
1447         if (opt_intrp) {
1448 #if defined(ENABLE_VERIFIER)
1449                 if (opt_verify) {
1450                         DEBUG_JIT_COMPILEVERBOSE("Typechecking (stackbased): ");
1451
1452                         if (!typecheck_stackbased(jd)) {
1453                                 DEBUG_JIT_COMPILEVERBOSE("Exception while typechecking (stackbased): ");
1454                                 return NULL;
1455                         }
1456                 }
1457 #endif
1458                 if (!intrp_codegen(jd)) {
1459                         DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1460
1461                         return NULL;
1462                 }
1463         } else
1464 # endif
1465                 {
1466                         if (!codegen(jd)) {
1467                                 DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1468
1469                                 return NULL;
1470                         }
1471                 }
1472 #else
1473         if (!intrp_codegen(jd)) {
1474                 DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1475
1476                 return NULL;
1477         }
1478 #endif
1479         RT_TIMING_GET_TIME(time_codegen);
1480
1481         DEBUG_JIT_COMPILEVERBOSE("Generating code done: ");
1482
1483 #if !defined(NDEBUG)
1484         /* intermediate and assembly code listings */
1485
1486         if (JITDATA_HAS_FLAG_SHOWINTERMEDIATE(jd)) {
1487                 show_method(jd, SHOW_CODE);
1488         }
1489         else if (JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd)) {
1490 # if defined(ENABLE_DISASSEMBLER)
1491                 DISASSEMBLE(code->entrypoint,
1492                                         code->entrypoint + (code->mcodelength - cd->dseglen));
1493 # endif
1494         }
1495
1496         if (opt_showddatasegment)
1497                 dseg_display(jd);
1498 #endif
1499
1500         DEBUG_JIT_COMPILEVERBOSE("Compiling done: ");
1501
1502         /* switch to the newly generated code */
1503
1504         assert(code);
1505         assert(code->entrypoint);
1506
1507         /* add the current compile version to the methodinfo */
1508
1509         code->prev = m->code;
1510         m->code = code;
1511
1512         RT_TIMING_TIME_DIFF(time_start,time_checks,RT_TIMING_JIT_CHECKS);
1513         RT_TIMING_TIME_DIFF(time_checks,time_parse,RT_TIMING_JIT_PARSE);
1514         RT_TIMING_TIME_DIFF(time_parse,time_stack,RT_TIMING_JIT_STACK);
1515         RT_TIMING_TIME_DIFF(time_stack,time_typecheck,RT_TIMING_JIT_TYPECHECK);
1516         RT_TIMING_TIME_DIFF(time_typecheck,time_loop,RT_TIMING_JIT_LOOP);
1517         RT_TIMING_TIME_DIFF(time_loop,time_alloc,RT_TIMING_JIT_ALLOC);
1518         RT_TIMING_TIME_DIFF(time_alloc,time_rplpoints,RT_TIMING_JIT_RPLPOINTS);
1519         RT_TIMING_TIME_DIFF(time_rplpoints,time_codegen,RT_TIMING_JIT_CODEGEN);
1520         RT_TIMING_TIME_DIFF(time_start,time_codegen,RT_TIMING_JIT_TOTAL);
1521
1522         /* return pointer to the methods entry point */
1523
1524         return code->entrypoint;
1525 }
1526
1527
1528 /* jit_asm_compile *************************************************************
1529
1530    This method is called from asm_vm_call_method and does:
1531
1532      - create stackframe info for exceptions
1533      - compile the method
1534      - patch the entrypoint of the method into the calculated address in
1535        the JIT code
1536      - flushes the instruction cache.
1537
1538 *******************************************************************************/
1539
1540 #if defined(ENABLE_JIT)
1541 u1 *jit_asm_compile(methodinfo *m, u1 *mptr, u1 *sp, u1 *ra)
1542 {
1543         stackframeinfo  sfi;
1544         u1             *entrypoint;
1545         u1             *pa;
1546         ptrint         *p;
1547
1548         /* create the stackframeinfo (subtract 1 from RA as it points to the */
1549         /* instruction after the call)                                       */
1550
1551         stacktrace_create_extern_stackframeinfo(&sfi, NULL, sp, ra, ra-1);
1552
1553         /* actually compile the method */
1554
1555         entrypoint = jit_compile(m);
1556
1557         /* remove the stackframeinfo */
1558
1559         stacktrace_remove_stackframeinfo(&sfi);
1560
1561         /* there was a problem during compilation */
1562
1563         if (entrypoint == NULL)
1564                 return NULL;
1565
1566         /* get the method patch address */
1567
1568         pa = md_get_method_patch_address(ra, &sfi, mptr);
1569
1570         /* patch the method entry point */
1571
1572         p = (ptrint *) pa;
1573
1574         *p = (ptrint) entrypoint;
1575
1576         /* flush the instruction cache */
1577
1578         md_icacheflush(pa, SIZEOF_VOID_P);
1579
1580         return entrypoint;
1581 }
1582 #endif /* defined(ENABLE_JIT) */
1583
1584
1585 /* jit_complement_condition ****************************************************
1586
1587    Returns the complement of the passed conditional instruction.
1588
1589    We use the order of the different conditions, e.g.:
1590
1591    ICMD_IFEQ         153
1592    ICMD_IFNE         154
1593
1594    If the passed opcode is odd, we simply add 1 to get the complement.
1595    If the opcode is even, we subtract 1.
1596
1597    Exception:
1598
1599    ICMD_IFNULL       198
1600    ICMD_IFNONNULL    199
1601
1602 *******************************************************************************/
1603
1604 s4 jit_complement_condition(s4 opcode)
1605 {
1606         switch (opcode) {
1607         case ICMD_IFNULL:
1608                 return ICMD_IFNONNULL;
1609
1610         case ICMD_IFNONNULL:
1611                 return ICMD_IFNULL;
1612
1613         default:
1614                 /* check if opcode is odd */
1615
1616                 if (opcode & 0x1)
1617                         return opcode + 1;
1618                 else
1619                         return opcode - 1;
1620         }
1621 }
1622
1623
1624 /* jit_renumber_basicblocks ****************************************************
1625
1626    Set the ->nr of all blocks so it increases when traversing ->next.
1627
1628    IN:
1629        jitdata..........the current jitdata
1630
1631 *******************************************************************************/
1632
1633 void jit_renumber_basicblocks(jitdata *jd)
1634 {
1635         s4          nr;
1636         basicblock *bptr;
1637
1638         nr = 0;
1639         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
1640                 bptr->nr = nr++;
1641         }
1642
1643         /* we have one block more than jd->basicblockcount (the end marker) */
1644
1645         assert(nr == jd->basicblockcount + 1);
1646 }
1647
1648
1649 /* jit_check_basicblock_numbers ************************************************
1650
1651    Assert that the ->nr of the first block is zero and increases by 1 each
1652    time ->next is traversed.
1653    This function should be called before any analysis that relies on
1654    the basicblock numbers.
1655
1656    IN:
1657        jitdata..........the current jitdata
1658
1659    NOTE: Aborts with an assertion if the condition is not met!
1660
1661 *******************************************************************************/
1662
1663 #if !defined(NDEBUG)
1664 void jit_check_basicblock_numbers(jitdata *jd)
1665 {
1666         s4          nr;
1667         basicblock *bptr;
1668
1669         nr = 0;
1670         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
1671                 assert(bptr->nr == nr);
1672                 nr++;
1673         }
1674
1675         /* we have one block more than jd->basicblockcount (the end marker) */
1676
1677         assert(nr == jd->basicblockcount + 1);
1678 }
1679 #endif /* !defined(NDEBUG) */
1680
1681
1682 /*
1683  * These are local overrides for various environment variables in Emacs.
1684  * Please do not remove this and leave it at the end of the file, where
1685  * Emacs will automagically detect them.
1686  * ---------------------------------------------------------------------
1687  * Local variables:
1688  * mode: c
1689  * indent-tabs-mode: t
1690  * c-basic-offset: 4
1691  * tab-width: 4
1692  * End:
1693  * vim:noexpandtab:sw=4:ts=4:
1694  */