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 1038 2004-04-26 16:41:30Z 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;
57 typedef struct linenumberref linenumberref;
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 */
116 u2 line; /* line number in source file */
117 classinfo *clazz; /*needed for inlining. can't be done on basic block level, since an inlined
118 function doesn't start necessarily start a new block*/
122 /**************************** basic block structure ***************************/
130 #define BBTYPECHECK_UNDEF 2
131 #define BBTYPECHECK_REACHED 3
133 #define BBTYPE_STD 0 /* standard basic block type */
134 #define BBTYPE_EXH 1 /* exception handler basic block type */
135 #define BBTYPE_SBR 2 /* subroutine basic block type */
138 int flags; /* used during stack analysis, init with -1 */
139 int type; /* basic block type (std, xhandler, subroutine*/
140 instruction *iinstr; /* pointer to intermediate code instructions */
141 int icount; /* number of intermediate code instructions */
142 int mpc; /* machine code pc at start of block */
143 stackptr instack; /* stack at begin of basic block */
144 stackptr outstack; /* stack at end of basic block */
145 int indepth; /* stack depth at begin of basic block */
146 int outdepth; /* stack depth end of basic block */
147 int pre_count; /* count of predecessor basic blocks */
148 branchref *branchrefs; /* list of branches to be patched */
150 basicblock *next; /* used to build a BB list (instead of array) */
151 int lflags; /* used during loop copying, init with 0 */
152 basicblock *copied_to; /* points to the copy of this basic block */
153 /* when loop nodes are copied */
158 /************************* pseudo variable structure **************************/
161 int type; /* basic type of variable */
162 int flags; /* flags (SAVED, INMEMORY) */
163 int regoff; /* register number or memory offset */
166 typedef varinfo varinfo5[5];
169 /***************** forward references in branch instructions ******************/
172 s4 branchpos; /* patching position in code segment */
173 s4 reg; /* used for ArrayIndexOutOfBounds index reg */
174 branchref *next; /* next element in branchref list */
178 /******************** forward references in tables ***************************/
181 s4 tablepos; /* patching position in data segment */
182 basicblock *target; /* target basic block */
183 jumpref *next; /* next element in jumpref list */
186 struct linenumberref {
187 s4 tablepos; /* patching position in data segment */
188 int targetmpc; /* machine code program counter of first instruction for given line*/
189 u2 linenumber; /* line number, used for inserting into the table and for validty checking*/
190 linenumberref *next; /* next element in linenumberref list */
195 u1 *pos; /* patching position in generated code */
196 dataref *next; /* next element in dataref list */
200 /********** op1 values for ACONST instructions ********************************/
202 #define ACONST_LOAD 0 /* ACONST_NULL or LDC instruction */
203 #define ACONST_BUILTIN 1 /* constant argument for a builtin function call */
205 /********** JavaVM operation codes (sorted) and instruction lengths ***********/
207 extern char *icmd_names[256];
208 extern char *opcode_names[256];
209 extern int jcommandsize[256];
214 #define JAVA_ACONST_NULL 1
215 #define ICMD_ACONST 1 /* val.a = constant */
217 #define JAVA_ICONST_M1 2
218 #define ICMD_NULLCHECKPOP 2
220 #define JAVA_ICONST_0 3
221 #define ICMD_ICONST 3 /* val.i = constant */
223 #define JAVA_ICONST_1 4
224 #define ICMD_IREM0X10001 4
226 #define JAVA_ICONST_2 5
227 #define ICMD_IDIVPOW2 5 /* val.i = constant */
229 #define JAVA_ICONST_3 6
230 #define ICMD_LDIVPOW2 6 /* val.l = constant */
232 #define JAVA_ICONST_4 7
234 #define JAVA_ICONST_5 8
235 #define ICMD_LREM0X10001 8
237 #define JAVA_LCONST_0 9
238 #define ICMD_LCONST 9 /* val.l = constant */
240 #define JAVA_LCONST_1 10
241 #define ICMD_LCMPCONST 10 /* val.l = constant */
243 #define JAVA_FCONST_0 11
244 #define ICMD_FCONST 11 /* val.f = constant */
246 #define JAVA_FCONST_1 12
248 #define JAVA_FCONST_2 13
249 #define ICMD_ELSE_ICONST 13
251 #define JAVA_DCONST_0 14
252 #define ICMD_DCONST 14 /* val.d = constant */
254 #define JAVA_DCONST_1 15
255 #define ICMD_IFEQ_ICONST 15
257 #define JAVA_BIPUSH 16
258 #define ICMD_IFNE_ICONST 16
260 #define JAVA_SIPUSH 17
261 #define ICMD_IFLT_ICONST 17
264 #define ICMD_IFGE_ICONST 18
267 #define ICMD_IFGT_ICONST 19
269 #define JAVA_LDC2W 20
270 #define ICMD_IFLE_ICONST 20
272 /* order of LOAD instructions must be */
273 /* equal to order of TYPE_XXX defines */
274 #define JAVA_ILOAD 21
275 #define ICMD_ILOAD 21 /* op1 = local variable */
277 #define JAVA_LLOAD 22
278 #define ICMD_LLOAD 22 /* op1 = local variable */
280 #define JAVA_FLOAD 23
281 #define ICMD_FLOAD 23 /* op1 = local variable */
283 #define JAVA_DLOAD 24
284 #define ICMD_DLOAD 24 /* op1 = local variable */
286 #define JAVA_ALOAD 25
287 #define ICMD_ALOAD 25 /* op1 = local variable */
289 #define JAVA_ILOAD_0 26
290 #define ICMD_IADDCONST 26 /* val.i = constant */
292 #define JAVA_ILOAD_1 27
293 #define ICMD_ISUBCONST 27 /* val.i = constant */
295 #define JAVA_ILOAD_2 28
296 #define ICMD_IMULCONST 28 /* val.i = constant */
298 #define JAVA_ILOAD_3 29
299 #define ICMD_IANDCONST 29 /* val.i = constant */
301 #define JAVA_LLOAD_0 30
302 #define ICMD_IORCONST 30 /* val.i = constant */
304 #define JAVA_LLOAD_1 31
305 #define ICMD_IXORCONST 31 /* val.i = constant */
307 #define JAVA_LLOAD_2 32
308 #define ICMD_ISHLCONST 32 /* val.i = constant */
310 #define JAVA_LLOAD_3 33
311 #define ICMD_ISHRCONST 33 /* val.i = constant */
313 #define JAVA_FLOAD_0 34
314 #define ICMD_IUSHRCONST 34 /* val.i = constant */
316 #define JAVA_FLOAD_1 35
317 #define ICMD_IREMPOW2 35 /* val.i = constant */
319 #define JAVA_FLOAD_2 36
320 #define ICMD_LADDCONST 36 /* val.l = constant */
322 #define JAVA_FLOAD_3 37
323 #define ICMD_LSUBCONST 37 /* val.l = constant */
325 #define JAVA_DLOAD_0 38
326 #define ICMD_LMULCONST 38 /* val.l = constant */
328 #define JAVA_DLOAD_1 39
329 #define ICMD_LANDCONST 39 /* val.l = constant */
331 #define JAVA_DLOAD_2 40
332 #define ICMD_LORCONST 40 /* val.l = constant */
334 #define JAVA_DLOAD_3 41
335 #define ICMD_LXORCONST 41 /* val.l = constant */
337 #define JAVA_ALOAD_0 42
338 #define ICMD_LSHLCONST 42 /* val.l = constant */
340 #define JAVA_ALOAD_1 43
341 #define ICMD_LSHRCONST 43 /* val.l = constant */
343 #define JAVA_ALOAD_2 44
344 #define ICMD_LUSHRCONST 44 /* val.l = constant */
346 #define JAVA_ALOAD_3 45
347 #define ICMD_LREMPOW2 45 /* val.l = constant */
349 #define JAVA_IALOAD 46
350 #define ICMD_IALOAD 46
352 #define JAVA_LALOAD 47
353 #define ICMD_LALOAD 47
355 #define JAVA_FALOAD 48
356 #define ICMD_FALOAD 48
358 #define JAVA_DALOAD 49
359 #define ICMD_DALOAD 49
361 #define JAVA_AALOAD 50
362 #define ICMD_AALOAD 50
364 #define JAVA_BALOAD 51
365 #define ICMD_BALOAD 51
367 #define JAVA_CALOAD 52
368 #define ICMD_CALOAD 52
370 #define JAVA_SALOAD 53
371 #define ICMD_SALOAD 53
373 /* order of STORE instructions must be*/
374 /* equal to order of TYPE_XXX defines */
375 #define JAVA_ISTORE 54
376 #define ICMD_ISTORE 54 /* op1 = local variable */
378 #define JAVA_LSTORE 55
379 #define ICMD_LSTORE 55 /* op1 = local variable */
381 #define JAVA_FSTORE 56
382 #define ICMD_FSTORE 56 /* op1 = local variable */
384 #define JAVA_DSTORE 57
385 #define ICMD_DSTORE 57 /* op1 = local variable */
387 #define JAVA_ASTORE 58
388 #define ICMD_ASTORE 58 /* op1 = local variable */
390 #define JAVA_ISTORE_0 59
391 #define ICMD_IF_LEQ 59 /* op1 = target JavaVM pc, val.l */
393 #define JAVA_ISTORE_1 60
394 #define ICMD_IF_LNE 60 /* op1 = target JavaVM pc, val.l */
396 #define JAVA_ISTORE_2 61
397 #define ICMD_IF_LLT 61 /* op1 = target JavaVM pc, val.l */
399 #define JAVA_ISTORE_3 62
400 #define ICMD_IF_LGE 62 /* op1 = target JavaVM pc, val.l */
402 #define JAVA_LSTORE_0 63
403 #define ICMD_IF_LGT 63 /* op1 = target JavaVM pc, val.l */
405 #define JAVA_LSTORE_1 64
406 #define ICMD_IF_LLE 64 /* op1 = target JavaVM pc, val.l */
408 #define JAVA_LSTORE_2 65
409 #define ICMD_IF_LCMPEQ 65 /* op1 = target JavaVM pc */
411 #define JAVA_LSTORE_3 66
412 #define ICMD_IF_LCMPNE 66 /* op1 = target JavaVM pc */
414 #define JAVA_FSTORE_0 67
415 #define ICMD_IF_LCMPLT 67 /* op1 = target JavaVM pc */
417 #define JAVA_FSTORE_1 68
418 #define ICMD_IF_LCMPGE 68 /* op1 = target JavaVM pc */
420 #define JAVA_FSTORE_2 69
421 #define ICMD_IF_LCMPGT 69 /* op1 = target JavaVM pc */
423 #define JAVA_FSTORE_3 70
424 #define ICMD_IF_LCMPLE 70 /* op1 = target JavaVM pc */
426 #define JAVA_DSTORE_0 71
428 #define JAVA_DSTORE_1 72
430 #define JAVA_DSTORE_2 73
432 #define JAVA_DSTORE_3 74
434 #define JAVA_ASTORE_0 75
436 #define JAVA_ASTORE_1 76
438 #define JAVA_ASTORE_2 77
440 #define JAVA_ASTORE_3 78
442 #define JAVA_IASTORE 79
443 #define ICMD_IASTORE 79
445 #define JAVA_LASTORE 80
446 #define ICMD_LASTORE 80
448 #define JAVA_FASTORE 81
449 #define ICMD_FASTORE 81
451 #define JAVA_DASTORE 82
452 #define ICMD_DASTORE 82
454 #define JAVA_AASTORE 83
455 #define ICMD_AASTORE 83
457 #define JAVA_BASTORE 84
458 #define ICMD_BASTORE 84
460 #define JAVA_CASTORE 85
461 #define ICMD_CASTORE 85
463 #define JAVA_SASTORE 86
464 #define ICMD_SASTORE 86
475 #define JAVA_DUP_X1 90
476 #define ICMD_DUP_X1 90
478 #define JAVA_DUP_X2 91
479 #define ICMD_DUP_X2 91
484 #define JAVA_DUP2_X1 93
485 #define ICMD_DUP2_X1 93
487 #define JAVA_DUP2_X2 94
488 #define ICMD_DUP2_X2 94
505 #define JAVA_ISUB 100
506 #define ICMD_ISUB 100
508 #define JAVA_LSUB 101
509 #define ICMD_LSUB 101
511 #define JAVA_FSUB 102
512 #define ICMD_FSUB 102
514 #define JAVA_DSUB 103
515 #define ICMD_DSUB 103
517 #define JAVA_IMUL 104
518 #define ICMD_IMUL 104
520 #define JAVA_LMUL 105
521 #define ICMD_LMUL 105
523 #define JAVA_FMUL 106
524 #define ICMD_FMUL 106
526 #define JAVA_DMUL 107
527 #define ICMD_DMUL 107
529 #define JAVA_IDIV 108
530 #define ICMD_IDIV 108
532 #define JAVA_LDIV 109
533 #define ICMD_LDIV 109
535 #define JAVA_FDIV 110
536 #define ICMD_FDIV 110
538 #define JAVA_DDIV 111
539 #define ICMD_DDIV 111
541 #define JAVA_IREM 112
542 #define ICMD_IREM 112
544 #define JAVA_LREM 113
545 #define ICMD_LREM 113
547 #define JAVA_FREM 114
548 #define ICMD_FREM 114
550 #define JAVA_DREM 115
551 #define ICMD_DREM 115
553 #define JAVA_INEG 116
554 #define ICMD_INEG 116
556 #define JAVA_LNEG 117
557 #define ICMD_LNEG 117
559 #define JAVA_FNEG 118
560 #define ICMD_FNEG 118
562 #define JAVA_DNEG 119
563 #define ICMD_DNEG 119
565 #define JAVA_ISHL 120
566 #define ICMD_ISHL 120
568 #define JAVA_LSHL 121
569 #define ICMD_LSHL 121
571 #define JAVA_ISHR 122
572 #define ICMD_ISHR 122
574 #define JAVA_LSHR 123
575 #define ICMD_LSHR 123
577 #define JAVA_IUSHR 124
578 #define ICMD_IUSHR 124
580 #define JAVA_LUSHR 125
581 #define ICMD_LUSHR 125
583 #define JAVA_IAND 126
584 #define ICMD_IAND 126
586 #define JAVA_LAND 127
587 #define ICMD_LAND 127
595 #define JAVA_IXOR 130
596 #define ICMD_IXOR 130
598 #define JAVA_LXOR 131
599 #define ICMD_LXOR 131
601 #define JAVA_IINC 132
602 #define ICMD_IINC 132 /* op1 = local variable, val.i = constant */
640 #define JAVA_INT2BYTE 145
641 #define ICMD_INT2BYTE 145
643 #define JAVA_INT2CHAR 146
644 #define ICMD_INT2CHAR 146
646 #define JAVA_INT2SHORT 147
647 #define ICMD_INT2SHORT 147
649 #define JAVA_LCMP 148
650 #define ICMD_LCMP 148
652 #define JAVA_FCMPL 149
653 #define ICMD_FCMPL 149
655 #define JAVA_FCMPG 150
656 #define ICMD_FCMPG 150
658 #define JAVA_DCMPL 151
659 #define ICMD_DCMPL 151
661 #define JAVA_DCMPG 152
662 #define ICMD_DCMPG 152
664 #define JAVA_IFEQ 153
665 #define ICMD_IFEQ 153 /* op1 = target JavaVM pc, val.i */
667 #define JAVA_IFNE 154
668 #define ICMD_IFNE 154 /* op1 = target JavaVM pc, val.i */
670 #define JAVA_IFLT 155
671 #define ICMD_IFLT 155 /* op1 = target JavaVM pc, val.i */
673 #define JAVA_IFGE 156
674 #define ICMD_IFGE 156 /* op1 = target JavaVM pc, val.i */
676 #define JAVA_IFGT 157
677 #define ICMD_IFGT 157 /* op1 = target JavaVM pc, val.i */
679 #define JAVA_IFLE 158
680 #define ICMD_IFLE 158 /* op1 = target JavaVM pc, val.i */
682 #define JAVA_IF_ICMPEQ 159
683 #define ICMD_IF_ICMPEQ 159 /* op1 = target JavaVM pc */
685 #define JAVA_IF_ICMPNE 160
686 #define ICMD_IF_ICMPNE 160 /* op1 = target JavaVM pc */
688 #define JAVA_IF_ICMPLT 161
689 #define ICMD_IF_ICMPLT 161 /* op1 = target JavaVM pc */
691 #define JAVA_IF_ICMPGE 162
692 #define ICMD_IF_ICMPGE 162 /* op1 = target JavaVM pc */
694 #define JAVA_IF_ICMPGT 163
695 #define ICMD_IF_ICMPGT 163 /* op1 = target JavaVM pc */
697 #define JAVA_IF_ICMPLE 164
698 #define ICMD_IF_ICMPLE 164 /* op1 = target JavaVM pc */
700 #define JAVA_IF_ACMPEQ 165
701 #define ICMD_IF_ACMPEQ 165 /* op1 = target JavaVM pc */
703 #define JAVA_IF_ACMPNE 166
704 #define ICMD_IF_ACMPNE 166 /* op1 = target JavaVM pc */
706 #define JAVA_GOTO 167
707 #define ICMD_GOTO 167 /* op1 = target JavaVM pc */
710 #define ICMD_JSR 168 /* op1 = target JavaVM pc */
713 #define ICMD_RET 169 /* op1 = local variable */
715 #define JAVA_TABLESWITCH 170
716 #define ICMD_TABLESWITCH 170 /* val.a = pointer to s4 table */
717 /* length must be computed */
718 #define JAVA_LOOKUPSWITCH 171
719 #define ICMD_LOOKUPSWITCH 171 /* val.a = pointer to s4 table */
720 /* length must be computed */
721 #define JAVA_IRETURN 172
722 #define ICMD_IRETURN 172
724 #define JAVA_LRETURN 173
725 #define ICMD_LRETURN 173
727 #define JAVA_FRETURN 174
728 #define ICMD_FRETURN 174
730 #define JAVA_DRETURN 175
731 #define ICMD_DRETURN 175
733 #define JAVA_ARETURN 176
734 #define ICMD_ARETURN 176
736 #define JAVA_RETURN 177
737 #define ICMD_RETURN 177
739 #define JAVA_GETSTATIC 178
740 #define ICMD_GETSTATIC 178 /* op1 = type, val.a = field address */
742 #define JAVA_PUTSTATIC 179
743 #define ICMD_PUTSTATIC 179 /* op1 = type, val.a = field address */
745 #define JAVA_GETFIELD 180
746 #define ICMD_GETFIELD 180 /* op1 = type, val.i = field offset */
748 #define JAVA_PUTFIELD 181
749 #define ICMD_PUTFIELD 181 /* op1 = type, val.i = field offset */
751 #define JAVA_INVOKEVIRTUAL 182
752 #define ICMD_INVOKEVIRTUAL 182 /* val.a = method info pointer */
754 #define JAVA_INVOKESPECIAL 183
755 #define ICMD_INVOKESPECIAL 183 /* val.a = method info pointer */
757 #define JAVA_INVOKESTATIC 184
758 #define ICMD_INVOKESTATIC 184 /* val.a = method info pointer */
760 #define JAVA_INVOKEINTERFACE 185
761 #define ICMD_INVOKEINTERFACE 185 /* val.a = method info pointer */
763 #define ICMD_CHECKASIZE 186 /* */
766 #define ICMD_NEW 187 /* op1 = 1, val.a = class pointer */
768 #define JAVA_NEWARRAY 188
769 #define ICMD_NEWARRAY 188 /* op1 = basic type */
771 #define JAVA_ANEWARRAY 189
772 #define ICMD_ANEWARRAY 189 /* op1 = 0, val.a = array pointer */
773 /* op1 = 1, val.a = class pointer */
774 #define JAVA_ARRAYLENGTH 190
775 #define ICMD_ARRAYLENGTH 190
777 #define JAVA_ATHROW 191
778 #define ICMD_ATHROW 191
780 #define JAVA_CHECKCAST 192
781 #define ICMD_CHECKCAST 192 /* op1 = 0, val.a = array pointer */
782 /* op1 = 1, val.a = class pointer */
783 #define JAVA_INSTANCEOF 193
784 #define ICMD_INSTANCEOF 193 /* op1 = 0, val.a = array pointer */
785 /* op1 = 1, val.a = class pointer */
786 #define JAVA_MONITORENTER 194
787 #define ICMD_MONITORENTER 194
789 #define JAVA_MONITOREXIT 195
790 #define ICMD_MONITOREXIT 195
792 #define JAVA_WIDE 196
794 #define JAVA_MULTIANEWARRAY 197
795 #define ICMD_MULTIANEWARRAY 197 /* op1 = dimension, val.a = array */
797 #define JAVA_IFNULL 198
798 #define ICMD_IFNULL 198 /* op1 = target JavaVM pc */
800 #define JAVA_IFNONNULL 199
801 #define ICMD_IFNONNULL 199 /* op1 = target JavaVM pc */
803 #define JAVA_GOTO_W 200
805 #define JAVA_JSR_W 201
807 #define JAVA_BREAKPOINT 202
809 #define ICMD_CHECKOOM 203 /* check for out of memory error */
811 #define ICMD_BUILTIN3 253 /* internal opcode */
812 #define ICMD_BUILTIN2 254 /* internal opcode */
813 #define ICMD_BUILTIN1 255 /* internal opcode */
814 #define ICMD_READONLY_ARG 1024 /* used for inlining, opcodes 1024-1028 are used */
815 #define ICMD_CLEAR_ARGREN 1029 /* indicates the start of a new inlined method argument renaming must be reset */
818 /******************* description of JavaVM instructions ***********************/
820 #if defined(USEBUILTINTABLE)
822 builtin_descriptor *find_builtin(int opcode);
824 #endif /* USEBUILTINTABLE */
827 /***************************** register types *********************************/
829 #define REG_RES 0 /* reserved register for OS or code generator */
830 #define REG_RET 1 /* return value register */
831 #define REG_EXC 2 /* exception value register */
832 #define REG_SAV 3 /* (callee) saved register */
833 #define REG_TMP 4 /* scratch temporary register (caller saved) */
834 #define REG_ARG 5 /* argument register (caller saved) */
836 #define REG_END -1 /* last entry in tables */
838 #define PARAMMODE_NUMBERED 0
839 #define PARAMMODE_STUFFED 1
842 /***************************** register info block ****************************/
844 extern int nregdescint[]; /* description of integer registers */
845 extern int nregdescfloat[]; /* description of floating point registers */
847 extern int nreg_parammode;
850 /* compiler switches (set by main function) ***********************************/
852 extern int count_jit_calls;
853 extern int count_methods;
854 extern int count_spills;
855 extern int count_pcmd_activ;
856 extern int count_pcmd_drop;
857 extern int count_pcmd_zero;
858 extern int count_pcmd_const_store;
859 extern int count_pcmd_const_alu;
860 extern int count_pcmd_const_bra;
861 extern int count_pcmd_load;
862 extern int count_pcmd_move;
863 extern int count_load_instruction;
864 extern int count_pcmd_store;
865 extern int count_pcmd_store_comb;
866 extern int count_dup_instruction;
867 extern int count_pcmd_op;
868 extern int count_pcmd_mem;
869 extern int count_pcmd_met;
870 extern int count_pcmd_bra;
871 extern int count_pcmd_table;
872 extern int count_pcmd_return;
873 extern int count_pcmd_returnx;
874 extern int count_check_null;
875 extern int count_check_bound;
876 extern int count_max_basic_blocks;
877 extern int count_basic_blocks;
878 extern int count_max_javainstr;
879 extern int count_javainstr;
880 extern int count_javacodesize;
881 extern int count_javaexcsize;
882 extern int count_calls;
883 extern int count_tryblocks;
884 extern int count_code_len;
885 extern int count_data_len;
886 extern int count_cstub_len;
887 extern int count_nstub_len;
888 extern int count_max_new_stack;
889 extern int count_upper_bound_new_stack;
890 extern int *count_block_stack;
891 extern int *count_analyse_iterations;
892 extern int *count_method_bb_distribution;
893 extern int *count_block_size_distribution;
894 extern int *count_store_length;
895 extern int *count_store_depth;
898 /* global compiler variables */
900 extern classinfo *class; /* class the compiled method belongs to */
901 extern methodinfo *method; /* pointer to method info of compiled method */
902 extern utf *descriptor; /* type descriptor of compiled method */
903 extern int mparamcount; /* number of parameters (incl. this) */
904 extern u1 *mparamtypes; /* types of all parameters (TYPE_INT, ...) */
906 extern int maxstack; /* maximal JavaVM stack size */
907 extern int maxlocals; /* maximal number of local JavaVM variables */
908 extern int jcodelength; /* length of JavaVM-codes */
909 extern u1 *jcode; /* pointer to start of JavaVM-code */
910 extern lineinfo *jlinenumbers; /* line information array */
911 extern u2 jlinenumbercount; /* number of entries in the linenumber array */
912 extern int exceptiontablelength;/* length of exception table */
913 extern xtable *extable; /* pointer to start of exception table */
914 extern exceptiontable *raw_extable;
916 extern int block_count; /* number of basic blocks */
917 extern basicblock *block; /* points to basic block array */
918 extern int *block_index; /* a table which contains for every byte of */
919 /* JavaVM code a basic block index if at this */
920 /* byte there is the start of a basic block */
922 extern int instr_count; /* number of JavaVM instructions */
923 extern instruction *instr; /* points to intermediate code instructions */
925 extern int stack_count; /* number of stack elements */
926 extern stackelement *stack; /* points to intermediate code instructions */
928 extern bool isleafmethod; /* true if a method doesn't call subroutines */
930 extern basicblock *last_block; /* points to the end of the BB list */
932 extern bool regs_ok; /* true if registers have been allocated */
935 /* list of all classes used by the compiled method which have to be */
936 /* initialised (if not already done) before execution of this method */
937 extern chain *uninitializedclasses;
939 extern int stackreq[256];
942 #if defined(__I386__)
943 extern bool method_uses_ecx;
944 extern bool method_uses_edx;
948 /* function prototypes */
950 methodptr jit_compile (methodinfo *m); /* compile a method with jit compiler */
952 void jit_init(); /* compiler initialisation */
953 void jit_close(); /* compiler finalisation */
955 u1 *createcompilerstub(methodinfo *m);
956 u1 *createnativestub(functionptr f, methodinfo *m);
958 void removecompilerstub(u1 *stub);
959 void removenativestub(u1 *stub);
963 /* debug helpers (in stack.c) */
965 void icmd_print_stack(stackptr s);
966 char *icmd_builtin_name(functionptr bptr);
967 void show_icmd_block(basicblock *bptr);
968 void show_icmd(instruction *iptr,bool deadcode);
969 void show_icmd_method();
975 * These are local overrides for various environment variables in Emacs.
976 * Please do not remove this and leave it at the end of the file, where
977 * Emacs will automagically detect them.
978 * ---------------------------------------------------------------------
981 * indent-tabs-mode: t