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 760 2003-12-13 22:38:03Z twisti $
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 /* XXX 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 /********** JavaVM operation codes (sorted) and instruction lengths ***********/
191 extern char *icmd_names[256];
192 extern char *opcode_names[256];
193 extern int jcommandsize[256];
198 #define JAVA_ACONST_NULL 1
199 #define ICMD_ACONST 1 /* val.a = constant */
201 #define JAVA_ICONST_M1 2
202 #define ICMD_NULLCHECKPOP 2
204 #define JAVA_ICONST_0 3
205 #define ICMD_ICONST 3 /* val.i = constant */
207 #define JAVA_ICONST_1 4
208 #define ICMD_IREM0X10001 4
210 #define JAVA_ICONST_2 5
211 #define ICMD_IDIVPOW2 5 /* val.i = constant */
213 #define JAVA_ICONST_3 6
214 #define ICMD_LDIVPOW2 6 /* val.l = constant */
216 #define JAVA_ICONST_4 7
218 #define JAVA_ICONST_5 8
219 #define ICMD_LREM0X10001 8
221 #define JAVA_LCONST_0 9
222 #define ICMD_LCONST 9 /* val.l = constant */
224 #define JAVA_LCONST_1 10
225 #define ICMD_LCMPCONST 10 /* val.l = constant */
227 #define JAVA_FCONST_0 11
228 #define ICMD_FCONST 11 /* val.f = constant */
230 #define JAVA_FCONST_1 12
232 #define JAVA_FCONST_2 13
233 #define ICMD_ELSE_ICONST 13
235 #define JAVA_DCONST_0 14
236 #define ICMD_DCONST 14 /* val.d = constant */
238 #define JAVA_DCONST_1 15
239 #define ICMD_IFEQ_ICONST 15
241 #define JAVA_BIPUSH 16
242 #define ICMD_IFNE_ICONST 16
244 #define JAVA_SIPUSH 17
245 #define ICMD_IFLT_ICONST 17
248 #define ICMD_IFGE_ICONST 18
251 #define ICMD_IFGT_ICONST 19
253 #define JAVA_LDC2W 20
254 #define ICMD_IFLE_ICONST 20
256 /* order of LOAD instructions must be */
257 /* equal to order of TYPE_XXX defines */
258 #define JAVA_ILOAD 21
259 #define ICMD_ILOAD 21 /* op1 = local variable */
261 #define JAVA_LLOAD 22
262 #define ICMD_LLOAD 22 /* op1 = local variable */
264 #define JAVA_FLOAD 23
265 #define ICMD_FLOAD 23 /* op1 = local variable */
267 #define JAVA_DLOAD 24
268 #define ICMD_DLOAD 24 /* op1 = local variable */
270 #define JAVA_ALOAD 25
271 #define ICMD_ALOAD 25 /* op1 = local variable */
273 #define JAVA_ILOAD_0 26
274 #define ICMD_IADDCONST 26 /* val.i = constant */
276 #define JAVA_ILOAD_1 27
277 #define ICMD_ISUBCONST 27 /* val.i = constant */
279 #define JAVA_ILOAD_2 28
280 #define ICMD_IMULCONST 28 /* val.i = constant */
282 #define JAVA_ILOAD_3 29
283 #define ICMD_IANDCONST 29 /* val.i = constant */
285 #define JAVA_LLOAD_0 30
286 #define ICMD_IORCONST 30 /* val.i = constant */
288 #define JAVA_LLOAD_1 31
289 #define ICMD_IXORCONST 31 /* val.i = constant */
291 #define JAVA_LLOAD_2 32
292 #define ICMD_ISHLCONST 32 /* val.i = constant */
294 #define JAVA_LLOAD_3 33
295 #define ICMD_ISHRCONST 33 /* val.i = constant */
297 #define JAVA_FLOAD_0 34
298 #define ICMD_IUSHRCONST 34 /* val.i = constant */
300 #define JAVA_FLOAD_1 35
301 #define ICMD_IREMPOW2 35 /* val.i = constant */
303 #define JAVA_FLOAD_2 36
304 #define ICMD_LADDCONST 36 /* val.l = constant */
306 #define JAVA_FLOAD_3 37
307 #define ICMD_LSUBCONST 37 /* val.l = constant */
309 #define JAVA_DLOAD_0 38
310 #define ICMD_LMULCONST 38 /* val.l = constant */
312 #define JAVA_DLOAD_1 39
313 #define ICMD_LANDCONST 39 /* val.l = constant */
315 #define JAVA_DLOAD_2 40
316 #define ICMD_LORCONST 40 /* val.l = constant */
318 #define JAVA_DLOAD_3 41
319 #define ICMD_LXORCONST 41 /* val.l = constant */
321 #define JAVA_ALOAD_0 42
322 #define ICMD_LSHLCONST 42 /* val.l = constant */
324 #define JAVA_ALOAD_1 43
325 #define ICMD_LSHRCONST 43 /* val.l = constant */
327 #define JAVA_ALOAD_2 44
328 #define ICMD_LUSHRCONST 44 /* val.l = constant */
330 #define JAVA_ALOAD_3 45
331 #define ICMD_LREMPOW2 45 /* val.l = constant */
333 #define JAVA_IALOAD 46
334 #define ICMD_IALOAD 46
336 #define JAVA_LALOAD 47
337 #define ICMD_LALOAD 47
339 #define JAVA_FALOAD 48
340 #define ICMD_FALOAD 48
342 #define JAVA_DALOAD 49
343 #define ICMD_DALOAD 49
345 #define JAVA_AALOAD 50
346 #define ICMD_AALOAD 50
348 #define JAVA_BALOAD 51
349 #define ICMD_BALOAD 51
351 #define JAVA_CALOAD 52
352 #define ICMD_CALOAD 52
354 #define JAVA_SALOAD 53
355 #define ICMD_SALOAD 53
357 /* order of STORE instructions must be*/
358 /* equal to order of TYPE_XXX defines */
359 #define JAVA_ISTORE 54
360 #define ICMD_ISTORE 54 /* op1 = local variable */
362 #define JAVA_LSTORE 55
363 #define ICMD_LSTORE 55 /* op1 = local variable */
365 #define JAVA_FSTORE 56
366 #define ICMD_FSTORE 56 /* op1 = local variable */
368 #define JAVA_DSTORE 57
369 #define ICMD_DSTORE 57 /* op1 = local variable */
371 #define JAVA_ASTORE 58
372 #define ICMD_ASTORE 58 /* op1 = local variable */
374 #define JAVA_ISTORE_0 59
375 #define ICMD_IF_LEQ 59 /* op1 = target JavaVM pc, val.l */
377 #define JAVA_ISTORE_1 60
378 #define ICMD_IF_LNE 60 /* op1 = target JavaVM pc, val.l */
380 #define JAVA_ISTORE_2 61
381 #define ICMD_IF_LLT 61 /* op1 = target JavaVM pc, val.l */
383 #define JAVA_ISTORE_3 62
384 #define ICMD_IF_LGE 62 /* op1 = target JavaVM pc, val.l */
386 #define JAVA_LSTORE_0 63
387 #define ICMD_IF_LGT 63 /* op1 = target JavaVM pc, val.l */
389 #define JAVA_LSTORE_1 64
390 #define ICMD_IF_LLE 64 /* op1 = target JavaVM pc, val.l */
392 #define JAVA_LSTORE_2 65
393 #define ICMD_IF_LCMPEQ 65 /* op1 = target JavaVM pc */
395 #define JAVA_LSTORE_3 66
396 #define ICMD_IF_LCMPNE 66 /* op1 = target JavaVM pc */
398 #define JAVA_FSTORE_0 67
399 #define ICMD_IF_LCMPLT 67 /* op1 = target JavaVM pc */
401 #define JAVA_FSTORE_1 68
402 #define ICMD_IF_LCMPGE 68 /* op1 = target JavaVM pc */
404 #define JAVA_FSTORE_2 69
405 #define ICMD_IF_LCMPGT 69 /* op1 = target JavaVM pc */
407 #define JAVA_FSTORE_3 70
408 #define ICMD_IF_LCMPLE 70 /* op1 = target JavaVM pc */
410 #define JAVA_DSTORE_0 71
412 #define JAVA_DSTORE_1 72
414 #define JAVA_DSTORE_2 73
416 #define JAVA_DSTORE_3 74
418 #define JAVA_ASTORE_0 75
420 #define JAVA_ASTORE_1 76
422 #define JAVA_ASTORE_2 77
424 #define JAVA_ASTORE_3 78
426 #define JAVA_IASTORE 79
427 #define ICMD_IASTORE 79
429 #define JAVA_LASTORE 80
430 #define ICMD_LASTORE 80
432 #define JAVA_FASTORE 81
433 #define ICMD_FASTORE 81
435 #define JAVA_DASTORE 82
436 #define ICMD_DASTORE 82
438 #define JAVA_AASTORE 83
439 #define ICMD_AASTORE 83
441 #define JAVA_BASTORE 84
442 #define ICMD_BASTORE 84
444 #define JAVA_CASTORE 85
445 #define ICMD_CASTORE 85
447 #define JAVA_SASTORE 86
448 #define ICMD_SASTORE 86
459 #define JAVA_DUP_X1 90
460 #define ICMD_DUP_X1 90
462 #define JAVA_DUP_X2 91
463 #define ICMD_DUP_X2 91
468 #define JAVA_DUP2_X1 93
469 #define ICMD_DUP2_X1 93
471 #define JAVA_DUP2_X2 94
472 #define ICMD_DUP2_X2 94
489 #define JAVA_ISUB 100
490 #define ICMD_ISUB 100
492 #define JAVA_LSUB 101
493 #define ICMD_LSUB 101
495 #define JAVA_FSUB 102
496 #define ICMD_FSUB 102
498 #define JAVA_DSUB 103
499 #define ICMD_DSUB 103
501 #define JAVA_IMUL 104
502 #define ICMD_IMUL 104
504 #define JAVA_LMUL 105
505 #define ICMD_LMUL 105
507 #define JAVA_FMUL 106
508 #define ICMD_FMUL 106
510 #define JAVA_DMUL 107
511 #define ICMD_DMUL 107
513 #define JAVA_IDIV 108
514 #define ICMD_IDIV 108
516 #define JAVA_LDIV 109
517 #define ICMD_LDIV 109
519 #define JAVA_FDIV 110
520 #define ICMD_FDIV 110
522 #define JAVA_DDIV 111
523 #define ICMD_DDIV 111
525 #define JAVA_IREM 112
526 #define ICMD_IREM 112
528 #define JAVA_LREM 113
529 #define ICMD_LREM 113
531 #define JAVA_FREM 114
532 #define ICMD_FREM 114
534 #define JAVA_DREM 115
535 #define ICMD_DREM 115
537 #define JAVA_INEG 116
538 #define ICMD_INEG 116
540 #define JAVA_LNEG 117
541 #define ICMD_LNEG 117
543 #define JAVA_FNEG 118
544 #define ICMD_FNEG 118
546 #define JAVA_DNEG 119
547 #define ICMD_DNEG 119
549 #define JAVA_ISHL 120
550 #define ICMD_ISHL 120
552 #define JAVA_LSHL 121
553 #define ICMD_LSHL 121
555 #define JAVA_ISHR 122
556 #define ICMD_ISHR 122
558 #define JAVA_LSHR 123
559 #define ICMD_LSHR 123
561 #define JAVA_IUSHR 124
562 #define ICMD_IUSHR 124
564 #define JAVA_LUSHR 125
565 #define ICMD_LUSHR 125
567 #define JAVA_IAND 126
568 #define ICMD_IAND 126
570 #define JAVA_LAND 127
571 #define ICMD_LAND 127
579 #define JAVA_IXOR 130
580 #define ICMD_IXOR 130
582 #define JAVA_LXOR 131
583 #define ICMD_LXOR 131
585 #define JAVA_IINC 132
586 #define ICMD_IINC 132 /* op1 = local variable, val.i = constant */
624 #define JAVA_INT2BYTE 145
625 #define ICMD_INT2BYTE 145
627 #define JAVA_INT2CHAR 146
628 #define ICMD_INT2CHAR 146
630 #define JAVA_INT2SHORT 147
631 #define ICMD_INT2SHORT 147
633 #define JAVA_LCMP 148
634 #define ICMD_LCMP 148
636 #define JAVA_FCMPL 149
637 #define ICMD_FCMPL 149
639 #define JAVA_FCMPG 150
640 #define ICMD_FCMPG 150
642 #define JAVA_DCMPL 151
643 #define ICMD_DCMPL 151
645 #define JAVA_DCMPG 152
646 #define ICMD_DCMPG 152
648 #define JAVA_IFEQ 153
649 #define ICMD_IFEQ 153 /* op1 = target JavaVM pc, val.i */
651 #define JAVA_IFNE 154
652 #define ICMD_IFNE 154 /* op1 = target JavaVM pc, val.i */
654 #define JAVA_IFLT 155
655 #define ICMD_IFLT 155 /* op1 = target JavaVM pc, val.i */
657 #define JAVA_IFGE 156
658 #define ICMD_IFGE 156 /* op1 = target JavaVM pc, val.i */
660 #define JAVA_IFGT 157
661 #define ICMD_IFGT 157 /* op1 = target JavaVM pc, val.i */
663 #define JAVA_IFLE 158
664 #define ICMD_IFLE 158 /* op1 = target JavaVM pc, val.i */
666 #define JAVA_IF_ICMPEQ 159
667 #define ICMD_IF_ICMPEQ 159 /* op1 = target JavaVM pc */
669 #define JAVA_IF_ICMPNE 160
670 #define ICMD_IF_ICMPNE 160 /* op1 = target JavaVM pc */
672 #define JAVA_IF_ICMPLT 161
673 #define ICMD_IF_ICMPLT 161 /* op1 = target JavaVM pc */
675 #define JAVA_IF_ICMPGE 162
676 #define ICMD_IF_ICMPGE 162 /* op1 = target JavaVM pc */
678 #define JAVA_IF_ICMPGT 163
679 #define ICMD_IF_ICMPGT 163 /* op1 = target JavaVM pc */
681 #define JAVA_IF_ICMPLE 164
682 #define ICMD_IF_ICMPLE 164 /* op1 = target JavaVM pc */
684 #define JAVA_IF_ACMPEQ 165
685 #define ICMD_IF_ACMPEQ 165 /* op1 = target JavaVM pc */
687 #define JAVA_IF_ACMPNE 166
688 #define ICMD_IF_ACMPNE 166 /* op1 = target JavaVM pc */
690 #define JAVA_GOTO 167
691 #define ICMD_GOTO 167 /* op1 = target JavaVM pc */
694 #define ICMD_JSR 168 /* op1 = target JavaVM pc */
697 #define ICMD_RET 169 /* op1 = local variable */
699 #define JAVA_TABLESWITCH 170
700 #define ICMD_TABLESWITCH 170 /* val.a = pointer to s4 table */
701 /* length must be computed */
702 #define JAVA_LOOKUPSWITCH 171
703 #define ICMD_LOOKUPSWITCH 171 /* val.a = pointer to s4 table */
704 /* length must be computed */
705 #define JAVA_IRETURN 172
706 #define ICMD_IRETURN 172
708 #define JAVA_LRETURN 173
709 #define ICMD_LRETURN 173
711 #define JAVA_FRETURN 174
712 #define ICMD_FRETURN 174
714 #define JAVA_DRETURN 175
715 #define ICMD_DRETURN 175
717 #define JAVA_ARETURN 176
718 #define ICMD_ARETURN 176
720 #define JAVA_RETURN 177
721 #define ICMD_RETURN 177
723 #define JAVA_GETSTATIC 178
724 #define ICMD_GETSTATIC 178 /* op1 = type, val.a = field address */
726 #define JAVA_PUTSTATIC 179
727 #define ICMD_PUTSTATIC 179 /* op1 = type, val.a = field address */
729 #define JAVA_GETFIELD 180
730 #define ICMD_GETFIELD 180 /* op1 = type, val.i = field offset */
732 #define JAVA_PUTFIELD 181
733 #define ICMD_PUTFIELD 181 /* op1 = type, val.i = field offset */
735 #define JAVA_INVOKEVIRTUAL 182
736 #define ICMD_INVOKEVIRTUAL 182 /* val.a = method info pointer */
738 #define JAVA_INVOKESPECIAL 183
739 #define ICMD_INVOKESPECIAL 183 /* val.a = method info pointer */
741 #define JAVA_INVOKESTATIC 184
742 #define ICMD_INVOKESTATIC 184 /* val.a = method info pointer */
744 #define JAVA_INVOKEINTERFACE 185
745 #define ICMD_INVOKEINTERFACE 185 /* val.a = method info pointer */
747 #define ICMD_CHECKASIZE 186 /* */
750 #define ICMD_NEW 187 /* op1 = 1, val.a = class pointer */
752 #define JAVA_NEWARRAY 188
753 #define ICMD_NEWARRAY 188 /* op1 = basic type */
755 #define JAVA_ANEWARRAY 189
756 #define ICMD_ANEWARRAY 189 /* op1 = 0, val.a = array pointer */
757 /* op1 = 1, val.a = class pointer */
758 #define JAVA_ARRAYLENGTH 190
759 #define ICMD_ARRAYLENGTH 190
761 #define JAVA_ATHROW 191
762 #define ICMD_ATHROW 191
764 #define JAVA_CHECKCAST 192
765 #define ICMD_CHECKCAST 192 /* op1 = 0, val.a = array pointer */
766 /* op1 = 1, val.a = class pointer */
767 #define JAVA_INSTANCEOF 193
768 #define ICMD_INSTANCEOF 193 /* op1 = 0, val.a = array pointer */
769 /* op1 = 1, val.a = class pointer */
770 #define JAVA_MONITORENTER 194
771 #define ICMD_MONITORENTER 194
773 #define JAVA_MONITOREXIT 195
774 #define ICMD_MONITOREXIT 195
776 #define JAVA_WIDE 196
778 #define JAVA_MULTIANEWARRAY 197
779 #define ICMD_MULTIANEWARRAY 197 /* op1 = dimension, val.a = array */
781 #define JAVA_IFNULL 198
782 #define ICMD_IFNULL 198 /* op1 = target JavaVM pc */
784 #define JAVA_IFNONNULL 199
785 #define ICMD_IFNONNULL 199 /* op1 = target JavaVM pc */
787 #define JAVA_GOTO_W 200
789 #define JAVA_JSR_W 201
791 #define JAVA_BREAKPOINT 202
794 #define ICMD_BUILTIN3 253 /* internal opcode */
795 #define ICMD_BUILTIN2 254 /* internal opcode */
796 #define ICMD_BUILTIN1 255 /* internal opcode */
797 #define ICMD_READONLY_ARG 1024 /* used for inlining, opcodes 1024-1028 are used */
798 #define ICMD_CLEAR_ARGREN 1029 /* indicates the start of a new inlined method argument renaming must be reset */
801 /******************* description of JavaVM instructions ***********************/
803 #if defined(USEBUILTINTABLE)
819 extern stdopdescriptor builtintable[];
821 stdopdescriptor *find_builtin(int icmd);
824 builtin_descriptor *find_builtin(int opcode);
826 #endif /* USEBUILTINTABLE */
829 /***************************** register types *********************************/
831 #define REG_RES 0 /* reserved register for OS or code generator */
832 #define REG_RET 1 /* return value register */
833 #define REG_EXC 2 /* exception value register */
834 #define REG_SAV 3 /* (callee) saved register */
835 #define REG_TMP 4 /* scratch temporary register (caller saved) */
836 #define REG_ARG 5 /* argument register (caller saved) */
838 #define REG_END -1 /* last entry in tables */
840 #define PARAMMODE_NUMBERED 0
841 #define PARAMMODE_STUFFED 1
844 /***************************** register info block ****************************/
846 extern int nregdescint[]; /* description of integer registers */
847 extern int nregdescfloat[]; /* description of floating point registers */
849 extern int nreg_parammode;
852 /* compiler switches (set by main function) ***********************************/
854 extern bool runverbose; /* trace all method invocation */
855 extern bool compileverbose; /* trace compiler actions */
856 extern bool showdisassemble; /* generate disassembler listing */
857 extern bool showddatasegment; /* generate data segment listing */
858 extern bool showintermediate; /* generate intermediate code listing */
859 extern int optimizelevel; /* optimzation level (0 = no optimization) */
861 extern bool useinlining; /* use method inlining */
862 extern bool inlinevirtuals; /* inline unique virtual methods */
863 extern bool inlineexceptions; /* inline methods, that contain excptions */
864 extern bool inlineparamopt; /* optimize parameter passing to inlined methods */
865 extern bool inlineoutsiders; /* inline methods, that are not member of the invoker's class */
868 extern bool checkbounds; /* check array bounds */
869 extern bool opt_loops; /* optimize array accesses in loops */
870 extern bool checknull; /* check null pointers */
871 extern bool opt_noieee; /* don't implement ieee compliant floats */
872 extern bool checksync; /* do synchronization */
874 extern bool getcompilingtime; /* compute compile time */
875 extern long compilingtime; /* accumulated compile time */
877 extern int has_ext_instr_set; /* has instruction set extensions */
879 extern bool statistics;
881 extern int count_jit_calls;
882 extern int count_methods;
883 extern int count_spills;
884 extern int count_pcmd_activ;
885 extern int count_pcmd_drop;
886 extern int count_pcmd_zero;
887 extern int count_pcmd_const_store;
888 extern int count_pcmd_const_alu;
889 extern int count_pcmd_const_bra;
890 extern int count_pcmd_load;
891 extern int count_pcmd_move;
892 extern int count_load_instruction;
893 extern int count_pcmd_store;
894 extern int count_pcmd_store_comb;
895 extern int count_dup_instruction;
896 extern int count_pcmd_op;
897 extern int count_pcmd_mem;
898 extern int count_pcmd_met;
899 extern int count_pcmd_bra;
900 extern int count_pcmd_table;
901 extern int count_pcmd_return;
902 extern int count_pcmd_returnx;
903 extern int count_check_null;
904 extern int count_check_bound;
905 extern int count_max_basic_blocks;
906 extern int count_basic_blocks;
907 extern int count_max_javainstr;
908 extern int count_javainstr;
909 extern int count_javacodesize;
910 extern int count_javaexcsize;
911 extern int count_calls;
912 extern int count_tryblocks;
913 extern int count_code_len;
914 extern int count_data_len;
915 extern int count_cstub_len;
916 extern int count_nstub_len;
917 extern int count_max_new_stack;
918 extern int count_upper_bound_new_stack;
919 extern int *count_block_stack;
920 extern int *count_analyse_iterations;
921 extern int *count_method_bb_distribution;
922 extern int *count_block_size_distribution;
923 extern int *count_store_length;
924 extern int *count_store_depth;
927 /* global compiler variables */
929 extern classinfo *class; /* class the compiled method belongs to */
930 extern methodinfo *method; /* pointer to method info of compiled method */
931 extern int mparamcount; /* number of parameters (incl. this) */
932 extern u1 *mparamtypes; /* types of all parameters (TYPE_INT, ...) */
934 extern int maxstack; /* maximal JavaVM stack size */
935 extern int maxlocals; /* maximal number of local JavaVM variables */
936 extern int jcodelength; /* length of JavaVM-codes */
937 extern u1 *jcode; /* pointer to start of JavaVM-code */
938 extern int exceptiontablelength;/* length of exception table */
939 extern xtable *extable; /* pointer to start of exception table */
940 extern exceptiontable *raw_extable;
942 extern int block_count; /* number of basic blocks */
943 extern basicblock *block; /* points to basic block array */
944 extern int *block_index; /* a table which contains for every byte of */
945 /* JavaVM code a basic block index if at this */
946 /* byte there is the start of a basic block */
948 extern int instr_count; /* number of JavaVM instructions */
949 extern instruction *instr; /* points to intermediate code instructions */
951 extern int stack_count; /* number of stack elements */
952 extern stackelement *stack; /* points to intermediate code instructions */
954 extern bool isleafmethod; /* true if a method doesn't call subroutines */
956 extern basicblock *last_block; /* points to the end of the BB list */
958 extern bool regs_ok; /* true if registers have been allocated */
961 /* list of all classes used by the compiled method which have to be */
962 /* initialised (if not already done) before execution of this method */
963 extern chain *uninitializedclasses;
965 extern int stackreq[256];
968 #if defined(__I386__)
969 extern bool method_uses_ecx;
970 extern bool method_uses_edx;
974 /* function prototypes */
976 methodptr jit_compile (methodinfo *m); /* compile a method with jit compiler */
978 void jit_init(); /* compiler initialisation */
979 void jit_close(); /* compiler finalisation */
981 u1 *createcompilerstub(methodinfo *m);
982 u1 *createnativestub(functionptr f, methodinfo *m);
984 void removecompilerstub(u1 *stub);
985 void removenativestub(u1 *stub);
989 /* debug helpers (in stack.c) */
991 void icmd_print_stack(stackptr s);
992 char *icmd_builtin_name(functionptr bptr);
993 void show_icmd_block(basicblock *bptr);
994 void show_icmd(instruction *iptr,bool deadcode);
995 void show_icmd_method();
1001 * These are local overrides for various environment variables in Emacs.
1002 * Please do not remove this and leave it at the end of the file, where
1003 * Emacs will automagically detect them.
1004 * ---------------------------------------------------------------------
1007 * indent-tabs-mode: t