1 /* jit/jit.h - code generation header
3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
5 M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
6 P. Tomsich, J. Wenninger
8 This file is part of CACAO.
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Andreas Krall
30 Changes: Christian Thalinger
32 $Id: jit.h 892 2004-01-19 12:32:29Z edwin $
40 #include "toolbox/chain.h"
45 /**************************** resolve typedef-cycles **************************/
47 typedef struct stackelement stackelement;
48 typedef stackelement *stackptr;
49 typedef struct basicblock basicblock;
50 typedef struct instruction instruction;
51 typedef struct subroutineinfo subroutineinfo;
52 typedef struct varinfo varinfo;
53 typedef struct branchref branchref;
54 typedef struct jumpref jumpref;
55 typedef struct dataref dataref;
56 typedef varinfo *varinfoptr;
60 /************************** stack element structure ***************************/
64 /* Unified these with longer names. Maybe someday use only
65 * one set of names? -Edwin
67 /*#define TYPE_INT 0*/ /* the stack slot types must numbered in the */
68 #define TYPE_LNG TYPE_LONG /*1*/ /* same order as the ICMD_Ixxx to ICMD_Axxx */
69 #define TYPE_FLT TYPE_FLOAT /*2*/ /* instructions (LOAD and STORE) */
70 #define TYPE_DBL TYPE_DOUBLE /*3*/ /* integer, long, float, double, address */
71 #define TYPE_ADR TYPE_ADDRESS /*4*/
73 #define IS_INT_LNG_TYPE(a) (!((a)&TYPE_FLT))
74 #define IS_FLT_DBL_TYPE(a) ((a)&TYPE_FLT)
75 #define IS_2_WORD_TYPE(a) ((a)&TYPE_LNG)
80 #define SAVEDVAR 1 /* variable has to survive method invocations */
81 #define INMEMORY 2 /* variable stored in memory */
82 #define SAVEDTMP 4 /* temporary variable using a saved register */
86 #define UNDEFVAR 0 /* stack slot will become temp during regalloc*/
87 #define TEMPVAR 1 /* stack slot is temp register */
88 #define STACKVAR 2 /* stack slot is numbered stack slot */
89 #define LOCALVAR 3 /* stack slot is local variable */
90 #define ARGVAR 4 /* stack slot is argument variable */
94 stackptr prev; /* pointer to next element towards bottom */
95 int type; /* slot type of stack element */
96 #ifdef CACAO_TYPECHECK
97 typeinfo typeinfo; /* info on reference types */
99 int flags; /* flags (SAVED, INMEMORY) */
100 int varkind; /* kind of variable or register */
101 int varnum; /* number of variable */
102 int regoff; /* register number or memory offset */
106 /**************************** instruction structure ***************************/
109 stackptr dst; /* stack index of destination operand stack */
110 u2 opc; /* opcode of intermediate code command */
111 s4 op1; /* first operand, usually variable number */
112 imm_union val; /* immediate constant */
113 void *target; /* used for targets of branches and jumps */
114 /* and as address for list of targets for */
119 /**************************** basic block structure ***************************/
127 #define BBTYPECHECK_UNDEF 2
128 #define BBTYPECHECK_REACHED 3
130 #define BBTYPE_STD 0 /* standard basic block type */
131 #define BBTYPE_EXH 1 /* exception handler basic block type */
132 #define BBTYPE_SBR 2 /* subroutine basic block type */
135 int flags; /* used during stack analysis, init with -1 */
136 int type; /* basic block type (std, xhandler, subroutine*/
137 instruction *iinstr; /* pointer to intermediate code instructions */
138 int icount; /* number of intermediate code instructions */
139 int mpc; /* machine code pc at start of block */
140 stackptr instack; /* stack at begin of basic block */
141 stackptr outstack; /* stack at end of basic block */
142 int indepth; /* stack depth at begin of basic block */
143 int outdepth; /* stack depth end of basic block */
144 int pre_count; /* count of predecessor basic blocks */
145 branchref *branchrefs; /* list of branches to be patched */
147 basicblock *next; /* used to build a BB list (instead of array) */
148 int lflags; /* used during loop copying, init with 0 */
149 basicblock *copied_to; /* points to the copy of this basic block */
150 /* when loop nodes are copied */
155 /************************* pseudo variable structure **************************/
158 int type; /* basic type of variable */
159 int flags; /* flags (SAVED, INMEMORY) */
160 int regoff; /* register number or memory offset */
163 typedef varinfo varinfo5[5];
166 /***************** forward references in branch instructions ******************/
169 s4 branchpos; /* patching position in code segment */
170 branchref *next; /* next element in branchref list */
174 /******************** forward references in tables ***************************/
177 s4 tablepos; /* patching position in data segment */
178 basicblock *target; /* target basic block */
179 jumpref *next; /* next element in jumpref list */
184 u1 *pos; /* patching position in generated code */
185 dataref *next; /* next element in dataref list */
189 /********** op1 values for ACONST instructions ********************************/
191 #define ACONST_LOAD 0 /* ACONST_NULL or LDC instruction */
192 #define ACONST_BUILTIN 1 /* constant argument for a builtin function call */
194 /********** JavaVM operation codes (sorted) and instruction lengths ***********/
196 extern char *icmd_names[256];
197 extern char *opcode_names[256];
198 extern int jcommandsize[256];
203 #define JAVA_ACONST_NULL 1
204 #define ICMD_ACONST 1 /* val.a = constant */
206 #define JAVA_ICONST_M1 2
207 #define ICMD_NULLCHECKPOP 2
209 #define JAVA_ICONST_0 3
210 #define ICMD_ICONST 3 /* val.i = constant */
212 #define JAVA_ICONST_1 4
213 #define ICMD_IREM0X10001 4
215 #define JAVA_ICONST_2 5
216 #define ICMD_IDIVPOW2 5 /* val.i = constant */
218 #define JAVA_ICONST_3 6
219 #define ICMD_LDIVPOW2 6 /* val.l = constant */
221 #define JAVA_ICONST_4 7
223 #define JAVA_ICONST_5 8
224 #define ICMD_LREM0X10001 8
226 #define JAVA_LCONST_0 9
227 #define ICMD_LCONST 9 /* val.l = constant */
229 #define JAVA_LCONST_1 10
230 #define ICMD_LCMPCONST 10 /* val.l = constant */
232 #define JAVA_FCONST_0 11
233 #define ICMD_FCONST 11 /* val.f = constant */
235 #define JAVA_FCONST_1 12
237 #define JAVA_FCONST_2 13
238 #define ICMD_ELSE_ICONST 13
240 #define JAVA_DCONST_0 14
241 #define ICMD_DCONST 14 /* val.d = constant */
243 #define JAVA_DCONST_1 15
244 #define ICMD_IFEQ_ICONST 15
246 #define JAVA_BIPUSH 16
247 #define ICMD_IFNE_ICONST 16
249 #define JAVA_SIPUSH 17
250 #define ICMD_IFLT_ICONST 17
253 #define ICMD_IFGE_ICONST 18
256 #define ICMD_IFGT_ICONST 19
258 #define JAVA_LDC2W 20
259 #define ICMD_IFLE_ICONST 20
261 /* order of LOAD instructions must be */
262 /* equal to order of TYPE_XXX defines */
263 #define JAVA_ILOAD 21
264 #define ICMD_ILOAD 21 /* op1 = local variable */
266 #define JAVA_LLOAD 22
267 #define ICMD_LLOAD 22 /* op1 = local variable */
269 #define JAVA_FLOAD 23
270 #define ICMD_FLOAD 23 /* op1 = local variable */
272 #define JAVA_DLOAD 24
273 #define ICMD_DLOAD 24 /* op1 = local variable */
275 #define JAVA_ALOAD 25
276 #define ICMD_ALOAD 25 /* op1 = local variable */
278 #define JAVA_ILOAD_0 26
279 #define ICMD_IADDCONST 26 /* val.i = constant */
281 #define JAVA_ILOAD_1 27
282 #define ICMD_ISUBCONST 27 /* val.i = constant */
284 #define JAVA_ILOAD_2 28
285 #define ICMD_IMULCONST 28 /* val.i = constant */
287 #define JAVA_ILOAD_3 29
288 #define ICMD_IANDCONST 29 /* val.i = constant */
290 #define JAVA_LLOAD_0 30
291 #define ICMD_IORCONST 30 /* val.i = constant */
293 #define JAVA_LLOAD_1 31
294 #define ICMD_IXORCONST 31 /* val.i = constant */
296 #define JAVA_LLOAD_2 32
297 #define ICMD_ISHLCONST 32 /* val.i = constant */
299 #define JAVA_LLOAD_3 33
300 #define ICMD_ISHRCONST 33 /* val.i = constant */
302 #define JAVA_FLOAD_0 34
303 #define ICMD_IUSHRCONST 34 /* val.i = constant */
305 #define JAVA_FLOAD_1 35
306 #define ICMD_IREMPOW2 35 /* val.i = constant */
308 #define JAVA_FLOAD_2 36
309 #define ICMD_LADDCONST 36 /* val.l = constant */
311 #define JAVA_FLOAD_3 37
312 #define ICMD_LSUBCONST 37 /* val.l = constant */
314 #define JAVA_DLOAD_0 38
315 #define ICMD_LMULCONST 38 /* val.l = constant */
317 #define JAVA_DLOAD_1 39
318 #define ICMD_LANDCONST 39 /* val.l = constant */
320 #define JAVA_DLOAD_2 40
321 #define ICMD_LORCONST 40 /* val.l = constant */
323 #define JAVA_DLOAD_3 41
324 #define ICMD_LXORCONST 41 /* val.l = constant */
326 #define JAVA_ALOAD_0 42
327 #define ICMD_LSHLCONST 42 /* val.l = constant */
329 #define JAVA_ALOAD_1 43
330 #define ICMD_LSHRCONST 43 /* val.l = constant */
332 #define JAVA_ALOAD_2 44
333 #define ICMD_LUSHRCONST 44 /* val.l = constant */
335 #define JAVA_ALOAD_3 45
336 #define ICMD_LREMPOW2 45 /* val.l = constant */
338 #define JAVA_IALOAD 46
339 #define ICMD_IALOAD 46
341 #define JAVA_LALOAD 47
342 #define ICMD_LALOAD 47
344 #define JAVA_FALOAD 48
345 #define ICMD_FALOAD 48
347 #define JAVA_DALOAD 49
348 #define ICMD_DALOAD 49
350 #define JAVA_AALOAD 50
351 #define ICMD_AALOAD 50
353 #define JAVA_BALOAD 51
354 #define ICMD_BALOAD 51
356 #define JAVA_CALOAD 52
357 #define ICMD_CALOAD 52
359 #define JAVA_SALOAD 53
360 #define ICMD_SALOAD 53
362 /* order of STORE instructions must be*/
363 /* equal to order of TYPE_XXX defines */
364 #define JAVA_ISTORE 54
365 #define ICMD_ISTORE 54 /* op1 = local variable */
367 #define JAVA_LSTORE 55
368 #define ICMD_LSTORE 55 /* op1 = local variable */
370 #define JAVA_FSTORE 56
371 #define ICMD_FSTORE 56 /* op1 = local variable */
373 #define JAVA_DSTORE 57
374 #define ICMD_DSTORE 57 /* op1 = local variable */
376 #define JAVA_ASTORE 58
377 #define ICMD_ASTORE 58 /* op1 = local variable */
379 #define JAVA_ISTORE_0 59
380 #define ICMD_IF_LEQ 59 /* op1 = target JavaVM pc, val.l */
382 #define JAVA_ISTORE_1 60
383 #define ICMD_IF_LNE 60 /* op1 = target JavaVM pc, val.l */
385 #define JAVA_ISTORE_2 61
386 #define ICMD_IF_LLT 61 /* op1 = target JavaVM pc, val.l */
388 #define JAVA_ISTORE_3 62
389 #define ICMD_IF_LGE 62 /* op1 = target JavaVM pc, val.l */
391 #define JAVA_LSTORE_0 63
392 #define ICMD_IF_LGT 63 /* op1 = target JavaVM pc, val.l */
394 #define JAVA_LSTORE_1 64
395 #define ICMD_IF_LLE 64 /* op1 = target JavaVM pc, val.l */
397 #define JAVA_LSTORE_2 65
398 #define ICMD_IF_LCMPEQ 65 /* op1 = target JavaVM pc */
400 #define JAVA_LSTORE_3 66
401 #define ICMD_IF_LCMPNE 66 /* op1 = target JavaVM pc */
403 #define JAVA_FSTORE_0 67
404 #define ICMD_IF_LCMPLT 67 /* op1 = target JavaVM pc */
406 #define JAVA_FSTORE_1 68
407 #define ICMD_IF_LCMPGE 68 /* op1 = target JavaVM pc */
409 #define JAVA_FSTORE_2 69
410 #define ICMD_IF_LCMPGT 69 /* op1 = target JavaVM pc */
412 #define JAVA_FSTORE_3 70
413 #define ICMD_IF_LCMPLE 70 /* op1 = target JavaVM pc */
415 #define JAVA_DSTORE_0 71
417 #define JAVA_DSTORE_1 72
419 #define JAVA_DSTORE_2 73
421 #define JAVA_DSTORE_3 74
423 #define JAVA_ASTORE_0 75
425 #define JAVA_ASTORE_1 76
427 #define JAVA_ASTORE_2 77
429 #define JAVA_ASTORE_3 78
431 #define JAVA_IASTORE 79
432 #define ICMD_IASTORE 79
434 #define JAVA_LASTORE 80
435 #define ICMD_LASTORE 80
437 #define JAVA_FASTORE 81
438 #define ICMD_FASTORE 81
440 #define JAVA_DASTORE 82
441 #define ICMD_DASTORE 82
443 #define JAVA_AASTORE 83
444 #define ICMD_AASTORE 83
446 #define JAVA_BASTORE 84
447 #define ICMD_BASTORE 84
449 #define JAVA_CASTORE 85
450 #define ICMD_CASTORE 85
452 #define JAVA_SASTORE 86
453 #define ICMD_SASTORE 86
464 #define JAVA_DUP_X1 90
465 #define ICMD_DUP_X1 90
467 #define JAVA_DUP_X2 91
468 #define ICMD_DUP_X2 91
473 #define JAVA_DUP2_X1 93
474 #define ICMD_DUP2_X1 93
476 #define JAVA_DUP2_X2 94
477 #define ICMD_DUP2_X2 94
494 #define JAVA_ISUB 100
495 #define ICMD_ISUB 100
497 #define JAVA_LSUB 101
498 #define ICMD_LSUB 101
500 #define JAVA_FSUB 102
501 #define ICMD_FSUB 102
503 #define JAVA_DSUB 103
504 #define ICMD_DSUB 103
506 #define JAVA_IMUL 104
507 #define ICMD_IMUL 104
509 #define JAVA_LMUL 105
510 #define ICMD_LMUL 105
512 #define JAVA_FMUL 106
513 #define ICMD_FMUL 106
515 #define JAVA_DMUL 107
516 #define ICMD_DMUL 107
518 #define JAVA_IDIV 108
519 #define ICMD_IDIV 108
521 #define JAVA_LDIV 109
522 #define ICMD_LDIV 109
524 #define JAVA_FDIV 110
525 #define ICMD_FDIV 110
527 #define JAVA_DDIV 111
528 #define ICMD_DDIV 111
530 #define JAVA_IREM 112
531 #define ICMD_IREM 112
533 #define JAVA_LREM 113
534 #define ICMD_LREM 113
536 #define JAVA_FREM 114
537 #define ICMD_FREM 114
539 #define JAVA_DREM 115
540 #define ICMD_DREM 115
542 #define JAVA_INEG 116
543 #define ICMD_INEG 116
545 #define JAVA_LNEG 117
546 #define ICMD_LNEG 117
548 #define JAVA_FNEG 118
549 #define ICMD_FNEG 118
551 #define JAVA_DNEG 119
552 #define ICMD_DNEG 119
554 #define JAVA_ISHL 120
555 #define ICMD_ISHL 120
557 #define JAVA_LSHL 121
558 #define ICMD_LSHL 121
560 #define JAVA_ISHR 122
561 #define ICMD_ISHR 122
563 #define JAVA_LSHR 123
564 #define ICMD_LSHR 123
566 #define JAVA_IUSHR 124
567 #define ICMD_IUSHR 124
569 #define JAVA_LUSHR 125
570 #define ICMD_LUSHR 125
572 #define JAVA_IAND 126
573 #define ICMD_IAND 126
575 #define JAVA_LAND 127
576 #define ICMD_LAND 127
584 #define JAVA_IXOR 130
585 #define ICMD_IXOR 130
587 #define JAVA_LXOR 131
588 #define ICMD_LXOR 131
590 #define JAVA_IINC 132
591 #define ICMD_IINC 132 /* op1 = local variable, val.i = constant */
629 #define JAVA_INT2BYTE 145
630 #define ICMD_INT2BYTE 145
632 #define JAVA_INT2CHAR 146
633 #define ICMD_INT2CHAR 146
635 #define JAVA_INT2SHORT 147
636 #define ICMD_INT2SHORT 147
638 #define JAVA_LCMP 148
639 #define ICMD_LCMP 148
641 #define JAVA_FCMPL 149
642 #define ICMD_FCMPL 149
644 #define JAVA_FCMPG 150
645 #define ICMD_FCMPG 150
647 #define JAVA_DCMPL 151
648 #define ICMD_DCMPL 151
650 #define JAVA_DCMPG 152
651 #define ICMD_DCMPG 152
653 #define JAVA_IFEQ 153
654 #define ICMD_IFEQ 153 /* op1 = target JavaVM pc, val.i */
656 #define JAVA_IFNE 154
657 #define ICMD_IFNE 154 /* op1 = target JavaVM pc, val.i */
659 #define JAVA_IFLT 155
660 #define ICMD_IFLT 155 /* op1 = target JavaVM pc, val.i */
662 #define JAVA_IFGE 156
663 #define ICMD_IFGE 156 /* op1 = target JavaVM pc, val.i */
665 #define JAVA_IFGT 157
666 #define ICMD_IFGT 157 /* op1 = target JavaVM pc, val.i */
668 #define JAVA_IFLE 158
669 #define ICMD_IFLE 158 /* op1 = target JavaVM pc, val.i */
671 #define JAVA_IF_ICMPEQ 159
672 #define ICMD_IF_ICMPEQ 159 /* op1 = target JavaVM pc */
674 #define JAVA_IF_ICMPNE 160
675 #define ICMD_IF_ICMPNE 160 /* op1 = target JavaVM pc */
677 #define JAVA_IF_ICMPLT 161
678 #define ICMD_IF_ICMPLT 161 /* op1 = target JavaVM pc */
680 #define JAVA_IF_ICMPGE 162
681 #define ICMD_IF_ICMPGE 162 /* op1 = target JavaVM pc */
683 #define JAVA_IF_ICMPGT 163
684 #define ICMD_IF_ICMPGT 163 /* op1 = target JavaVM pc */
686 #define JAVA_IF_ICMPLE 164
687 #define ICMD_IF_ICMPLE 164 /* op1 = target JavaVM pc */
689 #define JAVA_IF_ACMPEQ 165
690 #define ICMD_IF_ACMPEQ 165 /* op1 = target JavaVM pc */
692 #define JAVA_IF_ACMPNE 166
693 #define ICMD_IF_ACMPNE 166 /* op1 = target JavaVM pc */
695 #define JAVA_GOTO 167
696 #define ICMD_GOTO 167 /* op1 = target JavaVM pc */
699 #define ICMD_JSR 168 /* op1 = target JavaVM pc */
702 #define ICMD_RET 169 /* op1 = local variable */
704 #define JAVA_TABLESWITCH 170
705 #define ICMD_TABLESWITCH 170 /* val.a = pointer to s4 table */
706 /* length must be computed */
707 #define JAVA_LOOKUPSWITCH 171
708 #define ICMD_LOOKUPSWITCH 171 /* val.a = pointer to s4 table */
709 /* length must be computed */
710 #define JAVA_IRETURN 172
711 #define ICMD_IRETURN 172
713 #define JAVA_LRETURN 173
714 #define ICMD_LRETURN 173
716 #define JAVA_FRETURN 174
717 #define ICMD_FRETURN 174
719 #define JAVA_DRETURN 175
720 #define ICMD_DRETURN 175
722 #define JAVA_ARETURN 176
723 #define ICMD_ARETURN 176
725 #define JAVA_RETURN 177
726 #define ICMD_RETURN 177
728 #define JAVA_GETSTATIC 178
729 #define ICMD_GETSTATIC 178 /* op1 = type, val.a = field address */
731 #define JAVA_PUTSTATIC 179
732 #define ICMD_PUTSTATIC 179 /* op1 = type, val.a = field address */
734 #define JAVA_GETFIELD 180
735 #define ICMD_GETFIELD 180 /* op1 = type, val.i = field offset */
737 #define JAVA_PUTFIELD 181
738 #define ICMD_PUTFIELD 181 /* op1 = type, val.i = field offset */
740 #define JAVA_INVOKEVIRTUAL 182
741 #define ICMD_INVOKEVIRTUAL 182 /* val.a = method info pointer */
743 #define JAVA_INVOKESPECIAL 183
744 #define ICMD_INVOKESPECIAL 183 /* val.a = method info pointer */
746 #define JAVA_INVOKESTATIC 184
747 #define ICMD_INVOKESTATIC 184 /* val.a = method info pointer */
749 #define JAVA_INVOKEINTERFACE 185
750 #define ICMD_INVOKEINTERFACE 185 /* val.a = method info pointer */
752 #define ICMD_CHECKASIZE 186 /* */
755 #define ICMD_NEW 187 /* op1 = 1, val.a = class pointer */
757 #define JAVA_NEWARRAY 188
758 #define ICMD_NEWARRAY 188 /* op1 = basic type */
760 #define JAVA_ANEWARRAY 189
761 #define ICMD_ANEWARRAY 189 /* op1 = 0, val.a = array pointer */
762 /* op1 = 1, val.a = class pointer */
763 #define JAVA_ARRAYLENGTH 190
764 #define ICMD_ARRAYLENGTH 190
766 #define JAVA_ATHROW 191
767 #define ICMD_ATHROW 191
769 #define JAVA_CHECKCAST 192
770 #define ICMD_CHECKCAST 192 /* op1 = 0, val.a = array pointer */
771 /* op1 = 1, val.a = class pointer */
772 #define JAVA_INSTANCEOF 193
773 #define ICMD_INSTANCEOF 193 /* op1 = 0, val.a = array pointer */
774 /* op1 = 1, val.a = class pointer */
775 #define JAVA_MONITORENTER 194
776 #define ICMD_MONITORENTER 194
778 #define JAVA_MONITOREXIT 195
779 #define ICMD_MONITOREXIT 195
781 #define JAVA_WIDE 196
783 #define JAVA_MULTIANEWARRAY 197
784 #define ICMD_MULTIANEWARRAY 197 /* op1 = dimension, val.a = array */
786 #define JAVA_IFNULL 198
787 #define ICMD_IFNULL 198 /* op1 = target JavaVM pc */
789 #define JAVA_IFNONNULL 199
790 #define ICMD_IFNONNULL 199 /* op1 = target JavaVM pc */
792 #define JAVA_GOTO_W 200
794 #define JAVA_JSR_W 201
796 #define JAVA_BREAKPOINT 202
799 #define ICMD_BUILTIN3 253 /* internal opcode */
800 #define ICMD_BUILTIN2 254 /* internal opcode */
801 #define ICMD_BUILTIN1 255 /* internal opcode */
802 #define ICMD_READONLY_ARG 1024 /* used for inlining, opcodes 1024-1028 are used */
803 #define ICMD_CLEAR_ARGREN 1029 /* indicates the start of a new inlined method argument renaming must be reset */
806 /******************* description of JavaVM instructions ***********************/
808 #if defined(USEBUILTINTABLE)
810 builtin_descriptor *find_builtin(int opcode);
812 #endif /* USEBUILTINTABLE */
815 /***************************** register types *********************************/
817 #define REG_RES 0 /* reserved register for OS or code generator */
818 #define REG_RET 1 /* return value register */
819 #define REG_EXC 2 /* exception value register */
820 #define REG_SAV 3 /* (callee) saved register */
821 #define REG_TMP 4 /* scratch temporary register (caller saved) */
822 #define REG_ARG 5 /* argument register (caller saved) */
824 #define REG_END -1 /* last entry in tables */
826 #define PARAMMODE_NUMBERED 0
827 #define PARAMMODE_STUFFED 1
830 /***************************** register info block ****************************/
832 extern int nregdescint[]; /* description of integer registers */
833 extern int nregdescfloat[]; /* description of floating point registers */
835 extern int nreg_parammode;
838 /* compiler switches (set by main function) ***********************************/
840 extern int count_jit_calls;
841 extern int count_methods;
842 extern int count_spills;
843 extern int count_pcmd_activ;
844 extern int count_pcmd_drop;
845 extern int count_pcmd_zero;
846 extern int count_pcmd_const_store;
847 extern int count_pcmd_const_alu;
848 extern int count_pcmd_const_bra;
849 extern int count_pcmd_load;
850 extern int count_pcmd_move;
851 extern int count_load_instruction;
852 extern int count_pcmd_store;
853 extern int count_pcmd_store_comb;
854 extern int count_dup_instruction;
855 extern int count_pcmd_op;
856 extern int count_pcmd_mem;
857 extern int count_pcmd_met;
858 extern int count_pcmd_bra;
859 extern int count_pcmd_table;
860 extern int count_pcmd_return;
861 extern int count_pcmd_returnx;
862 extern int count_check_null;
863 extern int count_check_bound;
864 extern int count_max_basic_blocks;
865 extern int count_basic_blocks;
866 extern int count_max_javainstr;
867 extern int count_javainstr;
868 extern int count_javacodesize;
869 extern int count_javaexcsize;
870 extern int count_calls;
871 extern int count_tryblocks;
872 extern int count_code_len;
873 extern int count_data_len;
874 extern int count_cstub_len;
875 extern int count_nstub_len;
876 extern int count_max_new_stack;
877 extern int count_upper_bound_new_stack;
878 extern int *count_block_stack;
879 extern int *count_analyse_iterations;
880 extern int *count_method_bb_distribution;
881 extern int *count_block_size_distribution;
882 extern int *count_store_length;
883 extern int *count_store_depth;
886 /* global compiler variables */
888 extern classinfo *class; /* class the compiled method belongs to */
889 extern methodinfo *method; /* pointer to method info of compiled method */
890 extern int mparamcount; /* number of parameters (incl. this) */
891 extern u1 *mparamtypes; /* types of all parameters (TYPE_INT, ...) */
893 extern int maxstack; /* maximal JavaVM stack size */
894 extern int maxlocals; /* maximal number of local JavaVM variables */
895 extern int jcodelength; /* length of JavaVM-codes */
896 extern u1 *jcode; /* pointer to start of JavaVM-code */
897 extern int exceptiontablelength;/* length of exception table */
898 extern xtable *extable; /* pointer to start of exception table */
899 extern exceptiontable *raw_extable;
901 extern int block_count; /* number of basic blocks */
902 extern basicblock *block; /* points to basic block array */
903 extern int *block_index; /* a table which contains for every byte of */
904 /* JavaVM code a basic block index if at this */
905 /* byte there is the start of a basic block */
907 extern int instr_count; /* number of JavaVM instructions */
908 extern instruction *instr; /* points to intermediate code instructions */
910 extern int stack_count; /* number of stack elements */
911 extern stackelement *stack; /* points to intermediate code instructions */
913 extern bool isleafmethod; /* true if a method doesn't call subroutines */
915 extern basicblock *last_block; /* points to the end of the BB list */
917 extern bool regs_ok; /* true if registers have been allocated */
920 /* list of all classes used by the compiled method which have to be */
921 /* initialised (if not already done) before execution of this method */
922 extern chain *uninitializedclasses;
924 extern int stackreq[256];
927 #if defined(__I386__)
928 extern bool method_uses_ecx;
929 extern bool method_uses_edx;
933 /* function prototypes */
935 methodptr jit_compile (methodinfo *m); /* compile a method with jit compiler */
937 void jit_init(); /* compiler initialisation */
938 void jit_close(); /* compiler finalisation */
940 u1 *createcompilerstub(methodinfo *m);
941 u1 *createnativestub(functionptr f, methodinfo *m);
943 void removecompilerstub(u1 *stub);
944 void removenativestub(u1 *stub);
948 /* debug helpers (in stack.c) */
950 void icmd_print_stack(stackptr s);
951 char *icmd_builtin_name(functionptr bptr);
952 void show_icmd_block(basicblock *bptr);
953 void show_icmd(instruction *iptr,bool deadcode);
954 void show_icmd_method();
960 * These are local overrides for various environment variables in Emacs.
961 * Please do not remove this and leave it at the end of the file, where
962 * Emacs will automagically detect them.
963 * ---------------------------------------------------------------------
966 * indent-tabs-mode: t