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 941 2004-03-06 17:27:56Z jowenn $
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 */
116 u2 line /* line number in source file */
120 /**************************** basic block structure ***************************/
128 #define BBTYPECHECK_UNDEF 2
129 #define BBTYPECHECK_REACHED 3
131 #define BBTYPE_STD 0 /* standard basic block type */
132 #define BBTYPE_EXH 1 /* exception handler basic block type */
133 #define BBTYPE_SBR 2 /* subroutine basic block type */
136 int flags; /* used during stack analysis, init with -1 */
137 int type; /* basic block type (std, xhandler, subroutine*/
138 instruction *iinstr; /* pointer to intermediate code instructions */
139 int icount; /* number of intermediate code instructions */
140 int mpc; /* machine code pc at start of block */
141 stackptr instack; /* stack at begin of basic block */
142 stackptr outstack; /* stack at end of basic block */
143 int indepth; /* stack depth at begin of basic block */
144 int outdepth; /* stack depth end of basic block */
145 int pre_count; /* count of predecessor basic blocks */
146 branchref *branchrefs; /* list of branches to be patched */
148 basicblock *next; /* used to build a BB list (instead of array) */
149 int lflags; /* used during loop copying, init with 0 */
150 basicblock *copied_to; /* points to the copy of this basic block */
151 /* when loop nodes are copied */
156 /************************* pseudo variable structure **************************/
159 int type; /* basic type of variable */
160 int flags; /* flags (SAVED, INMEMORY) */
161 int regoff; /* register number or memory offset */
164 typedef varinfo varinfo5[5];
167 /***************** forward references in branch instructions ******************/
170 s4 branchpos; /* patching position in code segment */
171 s4 reg; /* used for ArrayIndexOutOfBounds index reg */
172 branchref *next; /* next element in branchref list */
176 /******************** forward references in tables ***************************/
179 s4 tablepos; /* patching position in data segment */
180 basicblock *target; /* target basic block */
181 jumpref *next; /* next element in jumpref list */
186 u1 *pos; /* patching position in generated code */
187 dataref *next; /* next element in dataref list */
191 /********** op1 values for ACONST instructions ********************************/
193 #define ACONST_LOAD 0 /* ACONST_NULL or LDC instruction */
194 #define ACONST_BUILTIN 1 /* constant argument for a builtin function call */
196 /********** JavaVM operation codes (sorted) and instruction lengths ***********/
198 extern char *icmd_names[256];
199 extern char *opcode_names[256];
200 extern int jcommandsize[256];
205 #define JAVA_ACONST_NULL 1
206 #define ICMD_ACONST 1 /* val.a = constant */
208 #define JAVA_ICONST_M1 2
209 #define ICMD_NULLCHECKPOP 2
211 #define JAVA_ICONST_0 3
212 #define ICMD_ICONST 3 /* val.i = constant */
214 #define JAVA_ICONST_1 4
215 #define ICMD_IREM0X10001 4
217 #define JAVA_ICONST_2 5
218 #define ICMD_IDIVPOW2 5 /* val.i = constant */
220 #define JAVA_ICONST_3 6
221 #define ICMD_LDIVPOW2 6 /* val.l = constant */
223 #define JAVA_ICONST_4 7
225 #define JAVA_ICONST_5 8
226 #define ICMD_LREM0X10001 8
228 #define JAVA_LCONST_0 9
229 #define ICMD_LCONST 9 /* val.l = constant */
231 #define JAVA_LCONST_1 10
232 #define ICMD_LCMPCONST 10 /* val.l = constant */
234 #define JAVA_FCONST_0 11
235 #define ICMD_FCONST 11 /* val.f = constant */
237 #define JAVA_FCONST_1 12
239 #define JAVA_FCONST_2 13
240 #define ICMD_ELSE_ICONST 13
242 #define JAVA_DCONST_0 14
243 #define ICMD_DCONST 14 /* val.d = constant */
245 #define JAVA_DCONST_1 15
246 #define ICMD_IFEQ_ICONST 15
248 #define JAVA_BIPUSH 16
249 #define ICMD_IFNE_ICONST 16
251 #define JAVA_SIPUSH 17
252 #define ICMD_IFLT_ICONST 17
255 #define ICMD_IFGE_ICONST 18
258 #define ICMD_IFGT_ICONST 19
260 #define JAVA_LDC2W 20
261 #define ICMD_IFLE_ICONST 20
263 /* order of LOAD instructions must be */
264 /* equal to order of TYPE_XXX defines */
265 #define JAVA_ILOAD 21
266 #define ICMD_ILOAD 21 /* op1 = local variable */
268 #define JAVA_LLOAD 22
269 #define ICMD_LLOAD 22 /* op1 = local variable */
271 #define JAVA_FLOAD 23
272 #define ICMD_FLOAD 23 /* op1 = local variable */
274 #define JAVA_DLOAD 24
275 #define ICMD_DLOAD 24 /* op1 = local variable */
277 #define JAVA_ALOAD 25
278 #define ICMD_ALOAD 25 /* op1 = local variable */
280 #define JAVA_ILOAD_0 26
281 #define ICMD_IADDCONST 26 /* val.i = constant */
283 #define JAVA_ILOAD_1 27
284 #define ICMD_ISUBCONST 27 /* val.i = constant */
286 #define JAVA_ILOAD_2 28
287 #define ICMD_IMULCONST 28 /* val.i = constant */
289 #define JAVA_ILOAD_3 29
290 #define ICMD_IANDCONST 29 /* val.i = constant */
292 #define JAVA_LLOAD_0 30
293 #define ICMD_IORCONST 30 /* val.i = constant */
295 #define JAVA_LLOAD_1 31
296 #define ICMD_IXORCONST 31 /* val.i = constant */
298 #define JAVA_LLOAD_2 32
299 #define ICMD_ISHLCONST 32 /* val.i = constant */
301 #define JAVA_LLOAD_3 33
302 #define ICMD_ISHRCONST 33 /* val.i = constant */
304 #define JAVA_FLOAD_0 34
305 #define ICMD_IUSHRCONST 34 /* val.i = constant */
307 #define JAVA_FLOAD_1 35
308 #define ICMD_IREMPOW2 35 /* val.i = constant */
310 #define JAVA_FLOAD_2 36
311 #define ICMD_LADDCONST 36 /* val.l = constant */
313 #define JAVA_FLOAD_3 37
314 #define ICMD_LSUBCONST 37 /* val.l = constant */
316 #define JAVA_DLOAD_0 38
317 #define ICMD_LMULCONST 38 /* val.l = constant */
319 #define JAVA_DLOAD_1 39
320 #define ICMD_LANDCONST 39 /* val.l = constant */
322 #define JAVA_DLOAD_2 40
323 #define ICMD_LORCONST 40 /* val.l = constant */
325 #define JAVA_DLOAD_3 41
326 #define ICMD_LXORCONST 41 /* val.l = constant */
328 #define JAVA_ALOAD_0 42
329 #define ICMD_LSHLCONST 42 /* val.l = constant */
331 #define JAVA_ALOAD_1 43
332 #define ICMD_LSHRCONST 43 /* val.l = constant */
334 #define JAVA_ALOAD_2 44
335 #define ICMD_LUSHRCONST 44 /* val.l = constant */
337 #define JAVA_ALOAD_3 45
338 #define ICMD_LREMPOW2 45 /* val.l = constant */
340 #define JAVA_IALOAD 46
341 #define ICMD_IALOAD 46
343 #define JAVA_LALOAD 47
344 #define ICMD_LALOAD 47
346 #define JAVA_FALOAD 48
347 #define ICMD_FALOAD 48
349 #define JAVA_DALOAD 49
350 #define ICMD_DALOAD 49
352 #define JAVA_AALOAD 50
353 #define ICMD_AALOAD 50
355 #define JAVA_BALOAD 51
356 #define ICMD_BALOAD 51
358 #define JAVA_CALOAD 52
359 #define ICMD_CALOAD 52
361 #define JAVA_SALOAD 53
362 #define ICMD_SALOAD 53
364 /* order of STORE instructions must be*/
365 /* equal to order of TYPE_XXX defines */
366 #define JAVA_ISTORE 54
367 #define ICMD_ISTORE 54 /* op1 = local variable */
369 #define JAVA_LSTORE 55
370 #define ICMD_LSTORE 55 /* op1 = local variable */
372 #define JAVA_FSTORE 56
373 #define ICMD_FSTORE 56 /* op1 = local variable */
375 #define JAVA_DSTORE 57
376 #define ICMD_DSTORE 57 /* op1 = local variable */
378 #define JAVA_ASTORE 58
379 #define ICMD_ASTORE 58 /* op1 = local variable */
381 #define JAVA_ISTORE_0 59
382 #define ICMD_IF_LEQ 59 /* op1 = target JavaVM pc, val.l */
384 #define JAVA_ISTORE_1 60
385 #define ICMD_IF_LNE 60 /* op1 = target JavaVM pc, val.l */
387 #define JAVA_ISTORE_2 61
388 #define ICMD_IF_LLT 61 /* op1 = target JavaVM pc, val.l */
390 #define JAVA_ISTORE_3 62
391 #define ICMD_IF_LGE 62 /* op1 = target JavaVM pc, val.l */
393 #define JAVA_LSTORE_0 63
394 #define ICMD_IF_LGT 63 /* op1 = target JavaVM pc, val.l */
396 #define JAVA_LSTORE_1 64
397 #define ICMD_IF_LLE 64 /* op1 = target JavaVM pc, val.l */
399 #define JAVA_LSTORE_2 65
400 #define ICMD_IF_LCMPEQ 65 /* op1 = target JavaVM pc */
402 #define JAVA_LSTORE_3 66
403 #define ICMD_IF_LCMPNE 66 /* op1 = target JavaVM pc */
405 #define JAVA_FSTORE_0 67
406 #define ICMD_IF_LCMPLT 67 /* op1 = target JavaVM pc */
408 #define JAVA_FSTORE_1 68
409 #define ICMD_IF_LCMPGE 68 /* op1 = target JavaVM pc */
411 #define JAVA_FSTORE_2 69
412 #define ICMD_IF_LCMPGT 69 /* op1 = target JavaVM pc */
414 #define JAVA_FSTORE_3 70
415 #define ICMD_IF_LCMPLE 70 /* op1 = target JavaVM pc */
417 #define JAVA_DSTORE_0 71
419 #define JAVA_DSTORE_1 72
421 #define JAVA_DSTORE_2 73
423 #define JAVA_DSTORE_3 74
425 #define JAVA_ASTORE_0 75
427 #define JAVA_ASTORE_1 76
429 #define JAVA_ASTORE_2 77
431 #define JAVA_ASTORE_3 78
433 #define JAVA_IASTORE 79
434 #define ICMD_IASTORE 79
436 #define JAVA_LASTORE 80
437 #define ICMD_LASTORE 80
439 #define JAVA_FASTORE 81
440 #define ICMD_FASTORE 81
442 #define JAVA_DASTORE 82
443 #define ICMD_DASTORE 82
445 #define JAVA_AASTORE 83
446 #define ICMD_AASTORE 83
448 #define JAVA_BASTORE 84
449 #define ICMD_BASTORE 84
451 #define JAVA_CASTORE 85
452 #define ICMD_CASTORE 85
454 #define JAVA_SASTORE 86
455 #define ICMD_SASTORE 86
466 #define JAVA_DUP_X1 90
467 #define ICMD_DUP_X1 90
469 #define JAVA_DUP_X2 91
470 #define ICMD_DUP_X2 91
475 #define JAVA_DUP2_X1 93
476 #define ICMD_DUP2_X1 93
478 #define JAVA_DUP2_X2 94
479 #define ICMD_DUP2_X2 94
496 #define JAVA_ISUB 100
497 #define ICMD_ISUB 100
499 #define JAVA_LSUB 101
500 #define ICMD_LSUB 101
502 #define JAVA_FSUB 102
503 #define ICMD_FSUB 102
505 #define JAVA_DSUB 103
506 #define ICMD_DSUB 103
508 #define JAVA_IMUL 104
509 #define ICMD_IMUL 104
511 #define JAVA_LMUL 105
512 #define ICMD_LMUL 105
514 #define JAVA_FMUL 106
515 #define ICMD_FMUL 106
517 #define JAVA_DMUL 107
518 #define ICMD_DMUL 107
520 #define JAVA_IDIV 108
521 #define ICMD_IDIV 108
523 #define JAVA_LDIV 109
524 #define ICMD_LDIV 109
526 #define JAVA_FDIV 110
527 #define ICMD_FDIV 110
529 #define JAVA_DDIV 111
530 #define ICMD_DDIV 111
532 #define JAVA_IREM 112
533 #define ICMD_IREM 112
535 #define JAVA_LREM 113
536 #define ICMD_LREM 113
538 #define JAVA_FREM 114
539 #define ICMD_FREM 114
541 #define JAVA_DREM 115
542 #define ICMD_DREM 115
544 #define JAVA_INEG 116
545 #define ICMD_INEG 116
547 #define JAVA_LNEG 117
548 #define ICMD_LNEG 117
550 #define JAVA_FNEG 118
551 #define ICMD_FNEG 118
553 #define JAVA_DNEG 119
554 #define ICMD_DNEG 119
556 #define JAVA_ISHL 120
557 #define ICMD_ISHL 120
559 #define JAVA_LSHL 121
560 #define ICMD_LSHL 121
562 #define JAVA_ISHR 122
563 #define ICMD_ISHR 122
565 #define JAVA_LSHR 123
566 #define ICMD_LSHR 123
568 #define JAVA_IUSHR 124
569 #define ICMD_IUSHR 124
571 #define JAVA_LUSHR 125
572 #define ICMD_LUSHR 125
574 #define JAVA_IAND 126
575 #define ICMD_IAND 126
577 #define JAVA_LAND 127
578 #define ICMD_LAND 127
586 #define JAVA_IXOR 130
587 #define ICMD_IXOR 130
589 #define JAVA_LXOR 131
590 #define ICMD_LXOR 131
592 #define JAVA_IINC 132
593 #define ICMD_IINC 132 /* op1 = local variable, val.i = constant */
631 #define JAVA_INT2BYTE 145
632 #define ICMD_INT2BYTE 145
634 #define JAVA_INT2CHAR 146
635 #define ICMD_INT2CHAR 146
637 #define JAVA_INT2SHORT 147
638 #define ICMD_INT2SHORT 147
640 #define JAVA_LCMP 148
641 #define ICMD_LCMP 148
643 #define JAVA_FCMPL 149
644 #define ICMD_FCMPL 149
646 #define JAVA_FCMPG 150
647 #define ICMD_FCMPG 150
649 #define JAVA_DCMPL 151
650 #define ICMD_DCMPL 151
652 #define JAVA_DCMPG 152
653 #define ICMD_DCMPG 152
655 #define JAVA_IFEQ 153
656 #define ICMD_IFEQ 153 /* op1 = target JavaVM pc, val.i */
658 #define JAVA_IFNE 154
659 #define ICMD_IFNE 154 /* op1 = target JavaVM pc, val.i */
661 #define JAVA_IFLT 155
662 #define ICMD_IFLT 155 /* op1 = target JavaVM pc, val.i */
664 #define JAVA_IFGE 156
665 #define ICMD_IFGE 156 /* op1 = target JavaVM pc, val.i */
667 #define JAVA_IFGT 157
668 #define ICMD_IFGT 157 /* op1 = target JavaVM pc, val.i */
670 #define JAVA_IFLE 158
671 #define ICMD_IFLE 158 /* op1 = target JavaVM pc, val.i */
673 #define JAVA_IF_ICMPEQ 159
674 #define ICMD_IF_ICMPEQ 159 /* op1 = target JavaVM pc */
676 #define JAVA_IF_ICMPNE 160
677 #define ICMD_IF_ICMPNE 160 /* op1 = target JavaVM pc */
679 #define JAVA_IF_ICMPLT 161
680 #define ICMD_IF_ICMPLT 161 /* op1 = target JavaVM pc */
682 #define JAVA_IF_ICMPGE 162
683 #define ICMD_IF_ICMPGE 162 /* op1 = target JavaVM pc */
685 #define JAVA_IF_ICMPGT 163
686 #define ICMD_IF_ICMPGT 163 /* op1 = target JavaVM pc */
688 #define JAVA_IF_ICMPLE 164
689 #define ICMD_IF_ICMPLE 164 /* op1 = target JavaVM pc */
691 #define JAVA_IF_ACMPEQ 165
692 #define ICMD_IF_ACMPEQ 165 /* op1 = target JavaVM pc */
694 #define JAVA_IF_ACMPNE 166
695 #define ICMD_IF_ACMPNE 166 /* op1 = target JavaVM pc */
697 #define JAVA_GOTO 167
698 #define ICMD_GOTO 167 /* op1 = target JavaVM pc */
701 #define ICMD_JSR 168 /* op1 = target JavaVM pc */
704 #define ICMD_RET 169 /* op1 = local variable */
706 #define JAVA_TABLESWITCH 170
707 #define ICMD_TABLESWITCH 170 /* val.a = pointer to s4 table */
708 /* length must be computed */
709 #define JAVA_LOOKUPSWITCH 171
710 #define ICMD_LOOKUPSWITCH 171 /* val.a = pointer to s4 table */
711 /* length must be computed */
712 #define JAVA_IRETURN 172
713 #define ICMD_IRETURN 172
715 #define JAVA_LRETURN 173
716 #define ICMD_LRETURN 173
718 #define JAVA_FRETURN 174
719 #define ICMD_FRETURN 174
721 #define JAVA_DRETURN 175
722 #define ICMD_DRETURN 175
724 #define JAVA_ARETURN 176
725 #define ICMD_ARETURN 176
727 #define JAVA_RETURN 177
728 #define ICMD_RETURN 177
730 #define JAVA_GETSTATIC 178
731 #define ICMD_GETSTATIC 178 /* op1 = type, val.a = field address */
733 #define JAVA_PUTSTATIC 179
734 #define ICMD_PUTSTATIC 179 /* op1 = type, val.a = field address */
736 #define JAVA_GETFIELD 180
737 #define ICMD_GETFIELD 180 /* op1 = type, val.i = field offset */
739 #define JAVA_PUTFIELD 181
740 #define ICMD_PUTFIELD 181 /* op1 = type, val.i = field offset */
742 #define JAVA_INVOKEVIRTUAL 182
743 #define ICMD_INVOKEVIRTUAL 182 /* val.a = method info pointer */
745 #define JAVA_INVOKESPECIAL 183
746 #define ICMD_INVOKESPECIAL 183 /* val.a = method info pointer */
748 #define JAVA_INVOKESTATIC 184
749 #define ICMD_INVOKESTATIC 184 /* val.a = method info pointer */
751 #define JAVA_INVOKEINTERFACE 185
752 #define ICMD_INVOKEINTERFACE 185 /* val.a = method info pointer */
754 #define ICMD_CHECKASIZE 186 /* */
757 #define ICMD_NEW 187 /* op1 = 1, val.a = class pointer */
759 #define JAVA_NEWARRAY 188
760 #define ICMD_NEWARRAY 188 /* op1 = basic type */
762 #define JAVA_ANEWARRAY 189
763 #define ICMD_ANEWARRAY 189 /* op1 = 0, val.a = array pointer */
764 /* op1 = 1, val.a = class pointer */
765 #define JAVA_ARRAYLENGTH 190
766 #define ICMD_ARRAYLENGTH 190
768 #define JAVA_ATHROW 191
769 #define ICMD_ATHROW 191
771 #define JAVA_CHECKCAST 192
772 #define ICMD_CHECKCAST 192 /* op1 = 0, val.a = array pointer */
773 /* op1 = 1, val.a = class pointer */
774 #define JAVA_INSTANCEOF 193
775 #define ICMD_INSTANCEOF 193 /* op1 = 0, val.a = array pointer */
776 /* op1 = 1, val.a = class pointer */
777 #define JAVA_MONITORENTER 194
778 #define ICMD_MONITORENTER 194
780 #define JAVA_MONITOREXIT 195
781 #define ICMD_MONITOREXIT 195
783 #define JAVA_WIDE 196
785 #define JAVA_MULTIANEWARRAY 197
786 #define ICMD_MULTIANEWARRAY 197 /* op1 = dimension, val.a = array */
788 #define JAVA_IFNULL 198
789 #define ICMD_IFNULL 198 /* op1 = target JavaVM pc */
791 #define JAVA_IFNONNULL 199
792 #define ICMD_IFNONNULL 199 /* op1 = target JavaVM pc */
794 #define JAVA_GOTO_W 200
796 #define JAVA_JSR_W 201
798 #define JAVA_BREAKPOINT 202
801 #define ICMD_BUILTIN3 253 /* internal opcode */
802 #define ICMD_BUILTIN2 254 /* internal opcode */
803 #define ICMD_BUILTIN1 255 /* internal opcode */
804 #define ICMD_READONLY_ARG 1024 /* used for inlining, opcodes 1024-1028 are used */
805 #define ICMD_CLEAR_ARGREN 1029 /* indicates the start of a new inlined method argument renaming must be reset */
808 /******************* description of JavaVM instructions ***********************/
810 #if defined(USEBUILTINTABLE)
812 builtin_descriptor *find_builtin(int opcode);
814 #endif /* USEBUILTINTABLE */
817 /***************************** register types *********************************/
819 #define REG_RES 0 /* reserved register for OS or code generator */
820 #define REG_RET 1 /* return value register */
821 #define REG_EXC 2 /* exception value register */
822 #define REG_SAV 3 /* (callee) saved register */
823 #define REG_TMP 4 /* scratch temporary register (caller saved) */
824 #define REG_ARG 5 /* argument register (caller saved) */
826 #define REG_END -1 /* last entry in tables */
828 #define PARAMMODE_NUMBERED 0
829 #define PARAMMODE_STUFFED 1
832 /***************************** register info block ****************************/
834 extern int nregdescint[]; /* description of integer registers */
835 extern int nregdescfloat[]; /* description of floating point registers */
837 extern int nreg_parammode;
840 /* compiler switches (set by main function) ***********************************/
842 extern int count_jit_calls;
843 extern int count_methods;
844 extern int count_spills;
845 extern int count_pcmd_activ;
846 extern int count_pcmd_drop;
847 extern int count_pcmd_zero;
848 extern int count_pcmd_const_store;
849 extern int count_pcmd_const_alu;
850 extern int count_pcmd_const_bra;
851 extern int count_pcmd_load;
852 extern int count_pcmd_move;
853 extern int count_load_instruction;
854 extern int count_pcmd_store;
855 extern int count_pcmd_store_comb;
856 extern int count_dup_instruction;
857 extern int count_pcmd_op;
858 extern int count_pcmd_mem;
859 extern int count_pcmd_met;
860 extern int count_pcmd_bra;
861 extern int count_pcmd_table;
862 extern int count_pcmd_return;
863 extern int count_pcmd_returnx;
864 extern int count_check_null;
865 extern int count_check_bound;
866 extern int count_max_basic_blocks;
867 extern int count_basic_blocks;
868 extern int count_max_javainstr;
869 extern int count_javainstr;
870 extern int count_javacodesize;
871 extern int count_javaexcsize;
872 extern int count_calls;
873 extern int count_tryblocks;
874 extern int count_code_len;
875 extern int count_data_len;
876 extern int count_cstub_len;
877 extern int count_nstub_len;
878 extern int count_max_new_stack;
879 extern int count_upper_bound_new_stack;
880 extern int *count_block_stack;
881 extern int *count_analyse_iterations;
882 extern int *count_method_bb_distribution;
883 extern int *count_block_size_distribution;
884 extern int *count_store_length;
885 extern int *count_store_depth;
888 /* global compiler variables */
890 extern classinfo *class; /* class the compiled method belongs to */
891 extern methodinfo *method; /* pointer to method info of compiled method */
892 extern int mparamcount; /* number of parameters (incl. this) */
893 extern u1 *mparamtypes; /* types of all parameters (TYPE_INT, ...) */
895 extern int maxstack; /* maximal JavaVM stack size */
896 extern int maxlocals; /* maximal number of local JavaVM variables */
897 extern int jcodelength; /* length of JavaVM-codes */
898 extern u1 *jcode; /* pointer to start of JavaVM-code */
899 lineinfo *jlinenumbers; /* line information array */
900 u2 jlinenumbercount; /* number of entries in the linenumber array */
901 extern int exceptiontablelength;/* length of exception table */
902 extern xtable *extable; /* pointer to start of exception table */
903 extern exceptiontable *raw_extable;
905 extern int block_count; /* number of basic blocks */
906 extern basicblock *block; /* points to basic block array */
907 extern int *block_index; /* a table which contains for every byte of */
908 /* JavaVM code a basic block index if at this */
909 /* byte there is the start of a basic block */
911 extern int instr_count; /* number of JavaVM instructions */
912 extern instruction *instr; /* points to intermediate code instructions */
914 extern int stack_count; /* number of stack elements */
915 extern stackelement *stack; /* points to intermediate code instructions */
917 extern bool isleafmethod; /* true if a method doesn't call subroutines */
919 extern basicblock *last_block; /* points to the end of the BB list */
921 extern bool regs_ok; /* true if registers have been allocated */
924 /* list of all classes used by the compiled method which have to be */
925 /* initialised (if not already done) before execution of this method */
926 extern chain *uninitializedclasses;
928 extern int stackreq[256];
931 #if defined(__I386__)
932 extern bool method_uses_ecx;
933 extern bool method_uses_edx;
937 /* function prototypes */
939 methodptr jit_compile (methodinfo *m); /* compile a method with jit compiler */
941 void jit_init(); /* compiler initialisation */
942 void jit_close(); /* compiler finalisation */
944 u1 *createcompilerstub(methodinfo *m);
945 u1 *createnativestub(functionptr f, methodinfo *m);
947 void removecompilerstub(u1 *stub);
948 void removenativestub(u1 *stub);
952 /* debug helpers (in stack.c) */
954 void icmd_print_stack(stackptr s);
955 char *icmd_builtin_name(functionptr bptr);
956 void show_icmd_block(basicblock *bptr);
957 void show_icmd(instruction *iptr,bool deadcode);
958 void show_icmd_method();
964 * These are local overrides for various environment variables in Emacs.
965 * Please do not remove this and leave it at the end of the file, where
966 * Emacs will automagically detect them.
967 * ---------------------------------------------------------------------
970 * indent-tabs-mode: t