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 5780 2006-10-15 12:20:15Z 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/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         /* initialize stack analysis subsystem */
 897
 898         (void) stack_init();
 899
 900         /* initialize show subsystem */
 901
 902 #if !defined(NDEBUG)
 903         (void) show_init();
 904 #endif
 905
 906         /* initialize codegen subsystem */
 907
 908         codegen_init();
 909 }
 910
 911
 912 /* jit_close *******************************************************************
 913
 914    Close the JIT subsystem.
 915
 916 *******************************************************************************/
 917
 918 void jit_close(void)
 919 {
 920         /* do nothing */
 921 }
 922
 923
 924 /* dummy function, used when there is no JavaVM code available                */
 925
 926 static u1 *do_nothing_function(void)
 927 {
 928         return NULL;
 929 }
 930
 931
 932 /* jit_jitdata_new *************************************************************
 933
 934    Allocates and initalizes a new jitdata structure.
 935
 936 *******************************************************************************/
 937
 938 static jitdata *jit_jitdata_new(methodinfo *m)
 939 {
 940         jitdata *jd;
 941
 942         /* allocate jitdata structure and fill it */
 943
 944         jd = DNEW(jitdata);
 945
 946         jd->m     = m;
 947         jd->cd    = DNEW(codegendata);
 948         jd->rd    = DNEW(registerdata);
 949 #if defined(ENABLE_LOOP)
 950         jd->ld    = DNEW(loopdata);
 951 #endif
 952
 953         /* Allocate codeinfo memory from the heap as we need to keep them. */
 954
 955         jd->code  = code_codeinfo_new(m);
 956
 957         /* initialize variables */
 958
 959         jd->flags        = 0;
 960         jd->isleafmethod = true;
 961
 962         return jd;
 963 }
 964
 965
 966 /* jit_compile *****************************************************************
 967
 968    Translates one method to machine code.
 969
 970 *******************************************************************************/
 971
 972 static u1 *jit_compile_intern(jitdata *jd);
 973
 974 u1 *jit_compile(methodinfo *m)
 975 {
 976         u1      *r;
 977         jitdata *jd;
 978         s4       dumpsize;
 979
 980         STATISTICS(count_jit_calls++);
 981
 982         /* Initialize the static function's class. */
 983
 984         /* ATTENTION: This MUST be done before the method lock is aquired,
 985            otherwise we could run into a deadlock with <clinit>'s that
 986            call static methods of it's own class. */
 987
 988         if ((m->flags & ACC_STATIC) && !(m->class->state & CLASS_INITIALIZED)) {
 989 #if !defined(NDEBUG)
 990                 if (initverbose)
 991                         log_message_class("Initialize class ", m->class);
 992 #endif
 993
 994                 if (!initialize_class(m->class))
 995                         return NULL;
 996
 997                 /* check if the method has been compiled during initialization */
 998
 999                 if ((m->code != NULL) && (m->code->entrypoint != NULL))
1000                         return m->code->entrypoint;
1001         }
1002
1003         /* enter a monitor on the method */
1004
1005         LOCK_MONITOR_ENTER(m);
1006
1007         /* if method has been already compiled return immediately */
1008
1009         if (m->code != NULL) {
1010                 LOCK_MONITOR_EXIT(m);
1011
1012                 assert(m->code->entrypoint);
1013                 return m->code->entrypoint;
1014         }
1015
1016         STATISTICS(count_methods++);
1017
1018 #if defined(ENABLE_STATISTICS)
1019         /* measure time */
1020
1021         if (opt_getcompilingtime)
1022                 compilingtime_start();
1023 #endif
1024
1025         /* mark start of dump memory area */
1026
1027         dumpsize = dump_size();
1028
1029         /* create jitdata structure */
1030
1031         jd = jit_jitdata_new(m);
1032
1033         /* set the flags for the current JIT run */
1034
1035         jd->flags = JITDATA_FLAG_PARSE;
1036
1037 #if defined(ENABLE_VERIFIER)
1038         if (opt_verify)
1039                 jd->flags |= JITDATA_FLAG_VERIFY;
1040 #endif
1041
1042         if (opt_prof)
1043                 jd->flags |= JITDATA_FLAG_INSTRUMENT;
1044
1045 #if defined(ENABLE_IFCONV)
1046         if (opt_ifconv)
1047                 jd->flags |= JITDATA_FLAG_IFCONV;
1048 #endif
1049
1050         if (opt_showintermediate)
1051                 jd->flags |= JITDATA_FLAG_SHOWINTERMEDIATE;
1052
1053         if (opt_showdisassemble)
1054                 jd->flags |= JITDATA_FLAG_SHOWDISASSEMBLE;
1055
1056         if (opt_verbosecall)
1057                 jd->flags |= JITDATA_FLAG_VERBOSECALL;
1058
1059 #if defined(ENABLE_JIT)
1060 # if defined(ENABLE_INTRP)
1061         if (!opt_intrp)
1062 # endif
1063                 /* initialize the register allocator */
1064         {
1065                 reg_setup(jd);
1066         }
1067 #endif
1068
1069         /* setup the codegendata memory */
1070
1071         codegen_setup(jd);
1072
1073         /* now call internal compile function */
1074
1075         r = jit_compile_intern(jd);
1076
1077         if (r == NULL) {
1078                 /* We had an exception! Finish stuff here if necessary. */
1079
1080                 /* release codeinfo */
1081
1082                 code_codeinfo_free(jd->code);
1083
1084                 /* Release memory for basic block profiling information. */
1085
1086                 if (JITDATA_HAS_FLAG_INSTRUMENT(jd))
1087                         if (jd->code->bbfrequency != NULL)
1088                                 MFREE(jd->code->bbfrequency, u4, jd->code->basicblockcount);
1089         }
1090         else {
1091                 DEBUG_JIT_COMPILEVERBOSE("Running: ");
1092         }
1093
1094         /* release dump area */
1095
1096         dump_release(dumpsize);
1097
1098 #if defined(ENABLE_STATISTICS)
1099         /* measure time */
1100
1101         if (opt_getcompilingtime)
1102                 compilingtime_stop();
1103 #endif
1104
1105         /* leave the monitor */
1106
1107         LOCK_MONITOR_EXIT(m);
1108
1109         /* return pointer to the methods entry point */
1110
1111         return r;
1112 }
1113
1114
1115 /* jit_recompile ***************************************************************
1116
1117    Recompiles a Java method.
1118
1119 *******************************************************************************/
1120
1121 u1 *jit_recompile(methodinfo *m)
1122 {
1123         u1      *r;
1124         jitdata *jd;
1125         u1       optlevel;
1126         s4       dumpsize;
1127
1128         /* check for max. optimization level */
1129
1130         optlevel = m->code->optlevel;
1131
1132         if (optlevel == 1) {
1133 /*              log_message_method("not recompiling: ", m); */
1134                 return NULL;
1135         }
1136
1137         log_message_method("Recompiling start: ", m);
1138
1139         STATISTICS(count_jit_calls++);
1140
1141 #if defined(ENABLE_STATISTICS)
1142         /* measure time */
1143
1144         if (opt_getcompilingtime)
1145                 compilingtime_start();
1146 #endif
1147
1148         /* mark start of dump memory area */
1149
1150         dumpsize = dump_size();
1151
1152         /* create jitdata structure */
1153
1154         jd = jit_jitdata_new(m);
1155
1156         /* set the current optimization level to the previous one plus 1 */
1157
1158         jd->code->optlevel = optlevel + 1;
1159
1160         /* get the optimization flags for the current JIT run */
1161
1162         jd->flags |= JITDATA_FLAG_REORDER;
1163         jd->flags |= JITDATA_FLAG_SHOWINTERMEDIATE;
1164         jd->flags |= JITDATA_FLAG_SHOWDISASSEMBLE;
1165 /*      jd->flags |= JITDATA_FLAG_VERBOSECALL; */
1166
1167 #if defined(ENABLE_JIT)
1168 # if defined(ENABLE_INTRP)
1169         if (!opt_intrp)
1170 # endif
1171                 /* initialize the register allocator */
1172
1173                 reg_setup(jd);
1174 #endif
1175
1176         /* setup the codegendata memory */
1177
1178         codegen_setup(jd);
1179
1180         /* now call internal compile function */
1181
1182         r = jit_compile_intern(jd);
1183
1184         if (r == NULL) {
1185                 /* We had an exception! Finish stuff here if necessary. */
1186
1187                 /* release codeinfo */
1188
1189                 code_codeinfo_free(jd->code);
1190         }
1191
1192         /* release dump area */
1193
1194         dump_release(dumpsize);
1195
1196 #if defined(ENABLE_STATISTICS)
1197         /* measure time */
1198
1199         if (opt_getcompilingtime)
1200                 compilingtime_stop();
1201 #endif
1202
1203         log_message_method("Recompiling done: ", m);
1204
1205         /* return pointer to the methods entry point */
1206
1207         return r;
1208 }
1209
1210
1211 /* jit_compile_intern **********************************************************
1212
1213    Static internal function which does the actual compilation.
1214
1215 *******************************************************************************/
1216
1217 static u1 *jit_compile_intern(jitdata *jd)
1218 {
1219         methodinfo  *m;
1220         codegendata *cd;
1221         codeinfo    *code;
1222
1223 #if defined(ENABLE_RT_TIMING)
1224         struct timespec time_start,time_checks,time_parse,time_stack,
1225                                         time_typecheck,time_loop,time_ifconv,time_alloc,
1226                                         time_rplpoints,time_codegen;
1227 #endif
1228
1229         RT_TIMING_GET_TIME(time_start);
1230
1231         /* get required compiler data */
1232
1233 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
1234         jd->ls = NULL;
1235 #endif
1236         m    = jd->m;
1237         code = jd->code;
1238         cd   = jd->cd;
1239
1240         /* print log message for compiled method */
1241
1242         DEBUG_JIT_COMPILEVERBOSE("Compiling: ");
1243
1244         /* handle native methods and create a native stub */
1245
1246         if (m->flags & ACC_NATIVE) {
1247                 functionptr f;
1248
1249 #if defined(WITH_STATIC_CLASSPATH)
1250                 f = native_findfunction(m->class->name, m->name, m->descriptor,
1251                                                                 (m->flags & ACC_STATIC));
1252                 if (f == NULL)
1253                         return NULL;
1254 #else
1255                 f = NULL;
1256 #endif
1257
1258                 code = codegen_createnativestub(f, m);
1259
1260                 assert(!m->code); /* native methods are never recompiled */
1261                 m->code = code;
1262
1263                 return code->entrypoint;
1264         }
1265
1266         /* if there is no javacode, print error message and return empty method   */
1267
1268         if (m->jcode == NULL) {
1269                 DEBUG_JIT_COMPILEVERBOSE("No code given for: ");
1270
1271                 code->entrypoint = (u1 *) (ptrint) do_nothing_function;
1272                 m->code = code;
1273
1274                 return code->entrypoint;        /* return empty method                */
1275         }
1276
1277 #if defined(ENABLE_STATISTICS)
1278         if (opt_stat) {
1279                 count_tryblocks    += m->exceptiontablelength;
1280                 count_javacodesize += m->jcodelength + 18;
1281                 count_javaexcsize  += m->exceptiontablelength * SIZEOF_VOID_P;
1282         }
1283 #endif
1284
1285         RT_TIMING_GET_TIME(time_checks);
1286
1287         /* call the compiler passes ***********************************************/
1288
1289         DEBUG_JIT_COMPILEVERBOSE("Parsing: ");
1290
1291         /* call parse pass */
1292
1293         if (!parse(jd)) {
1294                 DEBUG_JIT_COMPILEVERBOSE("Exception while parsing: ");
1295
1296                 return NULL;
1297         }
1298         RT_TIMING_GET_TIME(time_parse);
1299
1300         DEBUG_JIT_COMPILEVERBOSE("Parsing done: ");
1301
1302 #if defined(ENABLE_JIT)
1303 # if defined(ENABLE_INTRP)
1304         if (!opt_intrp) {
1305 # endif
1306                 DEBUG_JIT_COMPILEVERBOSE("Analysing: ");
1307
1308                 /* call stack analysis pass */
1309
1310                 if (!stack_analyse(jd)) {
1311                         DEBUG_JIT_COMPILEVERBOSE("Exception while analysing: ");
1312
1313                         return NULL;
1314                 }
1315                 RT_TIMING_GET_TIME(time_stack);
1316
1317                 DEBUG_JIT_COMPILEVERBOSE("Analysing done: ");
1318
1319                 /* Build the CFG.  This has to be done after stack_analyse, as
1320                    there happens the JSR elimination. */
1321
1322                 if (!cfg_build(jd))
1323                         return NULL;
1324
1325 #ifdef ENABLE_VERIFIER
1326                 if (jd->flags & JITDATA_FLAG_VERIFY) {
1327                         DEBUG_JIT_COMPILEVERBOSE("Typechecking: ");
1328
1329                         /* call typecheck pass */
1330                         if (!typecheck(jd)) {
1331                                 DEBUG_JIT_COMPILEVERBOSE("Exception while typechecking: ");
1332
1333                                 return NULL;
1334                         }
1335
1336                         DEBUG_JIT_COMPILEVERBOSE("Typechecking done: ");
1337                 }
1338 #endif
1339                 RT_TIMING_GET_TIME(time_typecheck);
1340
1341 #if defined(ENABLE_LOOP)
1342                 if (opt_loops) {
1343                         depthFirst(jd);
1344                         analyseGraph(jd);
1345                         optimize_loops(jd);
1346                 }
1347 #endif
1348                 RT_TIMING_GET_TIME(time_loop);
1349
1350 #if defined(ENABLE_IFCONV)
1351                 if (JITDATA_HAS_FLAG_IFCONV(jd))
1352                         if (!ifconv_static(jd))
1353                                 return NULL;
1354 #endif
1355                 RT_TIMING_GET_TIME(time_ifconv);
1356
1357                 /* Basic block reordering.  I think this should be done after
1358                    if-conversion, as we could lose the ability to do the
1359                    if-conversion. */
1360
1361                 if (JITDATA_HAS_FLAG_REORDER(jd))
1362                         if (!reorder(jd))
1363                                 return NULL;
1364
1365                 DEBUG_JIT_COMPILEVERBOSE("Allocating registers: ");
1366
1367 #if defined(ENABLE_LSRA) && !defined(ENABLE_SSA)
1368                 /* allocate registers */
1369                 if (opt_lsra) {
1370                         if (!lsra(jd))
1371                                 return NULL;
1372
1373                         STATISTICS(count_methods_allocated_by_lsra++);
1374
1375                 } else
1376 # endif /* defined(ENABLE_LSRA) && !defined(ENABLE_SSA) */
1377 #if defined(ENABLE_SSA)
1378                 /* allocate registers */
1379                 if ((opt_lsra) && (cd->exceptiontablelength == 0)) {
1380                         jd->ls = DNEW(lsradata);
1381                         lsra(jd);
1382
1383                         STATISTICS(count_methods_allocated_by_lsra++);
1384
1385                 } else
1386 # endif /* defined(ENABLE_SSA) */
1387                 {
1388                         STATISTICS(count_locals_conflicts += (cd->maxlocals - 1) * (cd->maxlocals));
1389
1390                         regalloc(jd);
1391                 }
1392
1393                 STATISTICS(simplereg_make_statistics(jd));
1394
1395                 DEBUG_JIT_COMPILEVERBOSE("Allocating registers done: ");
1396 # if defined(ENABLE_INTRP)
1397         }
1398 # endif
1399 #endif /* defined(ENABLE_JIT) */
1400         RT_TIMING_GET_TIME(time_alloc);
1401
1402         /* Allocate memory for basic block profiling information. This
1403            _must_ be done after loop optimization and register allocation,
1404            since they can change the basic block count. */
1405
1406         if (JITDATA_HAS_FLAG_INSTRUMENT(jd))
1407                 code->bbfrequency = MNEW(u4, jd->basicblockcount);
1408
1409         DEBUG_JIT_COMPILEVERBOSE("Generating code: ");
1410
1411         /* create the replacement points */
1412 #if 0
1413         if (!replace_create_replacement_points(jd))
1414                 return NULL;
1415 #endif
1416         RT_TIMING_GET_TIME(time_rplpoints);
1417
1418         /* now generate the machine code */
1419
1420 #if defined(ENABLE_JIT)
1421 # if defined(ENABLE_INTRP)
1422         if (opt_intrp) {
1423 #if defined(ENABLE_VERIFIER)
1424                 if (opt_verify) {
1425                         DEBUG_JIT_COMPILEVERBOSE("Typechecking (stackbased): ");
1426
1427                         if (!typecheck_stackbased(jd)) {
1428                                 DEBUG_JIT_COMPILEVERBOSE("Exception while typechecking (stackbased): ");
1429                                 return NULL;
1430                         }
1431                 }
1432 #endif
1433                 if (!intrp_codegen(jd)) {
1434                         DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1435
1436                         return NULL;
1437                 }
1438         } else
1439 # endif
1440                 {
1441                         if (!codegen(jd)) {
1442                                 DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1443
1444                                 return NULL;
1445                         }
1446                 }
1447 #else
1448         if (!intrp_codegen(jd)) {
1449                 DEBUG_JIT_COMPILEVERBOSE("Exception while generating code: ");
1450
1451                 return NULL;
1452         }
1453 #endif
1454         RT_TIMING_GET_TIME(time_codegen);
1455
1456         DEBUG_JIT_COMPILEVERBOSE("Generating code done: ");
1457
1458 #if !defined(NDEBUG)
1459         /* intermediate and assembly code listings */
1460
1461         if (JITDATA_HAS_FLAG_SHOWINTERMEDIATE(jd)) {
1462                 show_method(jd, SHOW_CODE);
1463         }
1464         else if (JITDATA_HAS_FLAG_SHOWDISASSEMBLE(jd)) {
1465 # if defined(ENABLE_DISASSEMBLER)
1466                 DISASSEMBLE(code->entrypoint,
1467                                         code->entrypoint + (code->mcodelength - cd->dseglen));
1468 # endif
1469         }
1470
1471         if (opt_showddatasegment)
1472                 dseg_display(jd);
1473 #endif
1474
1475         DEBUG_JIT_COMPILEVERBOSE("Compiling done: ");
1476
1477         /* switch to the newly generated code */
1478
1479         assert(code);
1480         assert(code->entrypoint);
1481
1482         /* add the current compile version to the methodinfo */
1483
1484         code->prev = m->code;
1485         m->code = code;
1486
1487         RT_TIMING_TIME_DIFF(time_start,time_checks,RT_TIMING_JIT_CHECKS);
1488         RT_TIMING_TIME_DIFF(time_checks,time_parse,RT_TIMING_JIT_PARSE);
1489         RT_TIMING_TIME_DIFF(time_parse,time_stack,RT_TIMING_JIT_STACK);
1490         RT_TIMING_TIME_DIFF(time_stack,time_typecheck,RT_TIMING_JIT_TYPECHECK);
1491         RT_TIMING_TIME_DIFF(time_typecheck,time_loop,RT_TIMING_JIT_LOOP);
1492         RT_TIMING_TIME_DIFF(time_loop,time_alloc,RT_TIMING_JIT_ALLOC);
1493         RT_TIMING_TIME_DIFF(time_alloc,time_rplpoints,RT_TIMING_JIT_RPLPOINTS);
1494         RT_TIMING_TIME_DIFF(time_rplpoints,time_codegen,RT_TIMING_JIT_CODEGEN);
1495         RT_TIMING_TIME_DIFF(time_start,time_codegen,RT_TIMING_JIT_TOTAL);
1496
1497         /* return pointer to the methods entry point */
1498
1499         return code->entrypoint;
1500 }
1501
1502
1503 /* jit_asm_compile *************************************************************
1504
1505    This method is called from asm_vm_call_method and does:
1506
1507      - create stackframe info for exceptions
1508      - compile the method
1509      - patch the entrypoint of the method into the calculated address in
1510        the JIT code
1511      - flushes the instruction cache.
1512
1513 *******************************************************************************/
1514
1515 u1 *jit_asm_compile(methodinfo *m, u1 *mptr, u1 *sp, u1 *ra)
1516 {
1517         stackframeinfo  sfi;
1518         u1             *entrypoint;
1519         u1             *pa;
1520         ptrint         *p;
1521
1522         /* create the stackframeinfo (XPC is equal to RA) */
1523
1524         stacktrace_create_extern_stackframeinfo(&sfi, NULL, sp, ra, ra);
1525
1526         /* actually compile the method */
1527
1528         entrypoint = jit_compile(m);
1529
1530         /* remove the stackframeinfo */
1531
1532         stacktrace_remove_stackframeinfo(&sfi);
1533
1534         /* there was a problem during compilation */
1535
1536         if (entrypoint == NULL)
1537                 return NULL;
1538
1539         /* get the method patch address */
1540
1541         pa = md_get_method_patch_address(ra, &sfi, mptr);
1542
1543         /* patch the method entry point */
1544
1545         p = (ptrint *) pa;
1546
1547         *p = (ptrint) entrypoint;
1548
1549         /* flush the instruction cache */
1550
1551         md_icacheflush(pa, SIZEOF_VOID_P);
1552
1553         return entrypoint;
1554 }
1555
1556
1557 /* jit_complement_condition ****************************************************
1558
1559    Returns the complement of the passed conditional instruction.
1560
1561    We use the order of the different conditions, e.g.:
1562
1563    ICMD_IFEQ         153
1564    ICMD_IFNE         154
1565
1566    If the passed opcode is odd, we simply add 1 to get the complement.
1567    If the opcode is even, we subtract 1.
1568
1569    Exception:
1570
1571    ICMD_IFNULL       198
1572    ICMD_IFNONNULL    199
1573
1574 *******************************************************************************/
1575
1576 s4 jit_complement_condition(s4 opcode)
1577 {
1578         switch (opcode) {
1579         case ICMD_IFNULL:
1580                 return ICMD_IFNONNULL;
1581
1582         case ICMD_IFNONNULL:
1583                 return ICMD_IFNULL;
1584
1585         default:
1586                 /* check if opcode is odd */
1587
1588                 if (opcode & 0x1)
1589                         return opcode + 1;
1590                 else
1591                         return opcode - 1;
1592         }
1593 }
1594
1595
1596 /* jit_renumber_basicblocks ****************************************************
1597
1598    Set the ->nr of all blocks so it increases when traversing ->next.
1599
1600    IN:
1601        jitdata..........the current jitdata
1602
1603 *******************************************************************************/
1604
1605 void jit_renumber_basicblocks(jitdata *jd)
1606 {
1607         s4          nr;
1608         basicblock *bptr;
1609
1610         nr = 0;
1611         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
1612                 bptr->nr = nr++;
1613         }
1614
1615         /* we have one block more than jd->basicblockcount (the end marker) */
1616
1617         assert(nr == jd->basicblockcount + 1);
1618 }
1619
1620
1621 /* jit_check_basicblock_numbers ************************************************
1622
1623    Assert that the ->nr of all blocks increases when traversing ->next.
1624    This function should be called before any analysis that relies on
1625    the basicblock numbers to increase strictly monotonically in the ->next
1626    sequence.
1627
1628    IN:
1629        jitdata..........the current jitdata
1630
1631    NOTE: Aborts with an assertion if the condition is not met!
1632
1633 *******************************************************************************/
1634
1635 #if !defined(NDEBUG)
1636 void jit_check_basicblock_numbers(jitdata *jd)
1637 {
1638         s4          nr;
1639         basicblock *bptr;
1640
1641         nr = -1;
1642         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
1643                 assert(bptr->nr > nr);
1644                 nr = bptr->nr;
1645         }
1646 }
1647 #endif /* !defined(NDEBUG) */
1648
1649
1650 /*
1651  * These are local overrides for various environment variables in Emacs.
1652  * Please do not remove this and leave it at the end of the file, where
1653  * Emacs will automagically detect them.
1654  * ---------------------------------------------------------------------
1655  * Local variables:
1656  * mode: c
1657  * indent-tabs-mode: t
1658  * c-basic-offset: 4
1659  * tab-width: 4
1660  * End:
1661  * vim:noexpandtab:sw=4:ts=4:
1662  */