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 1593 2004-11-25 15:14:48Z twisti $
40 /* We typedef these structures before #includes to resolve circular */
43 typedef struct stackelement stackelement;
44 typedef stackelement *stackptr;
45 typedef struct basicblock basicblock;
46 typedef struct instruction instruction;
47 typedef struct subroutineinfo subroutineinfo;
53 #include "jit/codegen.inc.h"
54 #include "toolbox/chain.h"
57 /**************************** resolve typedef-cycles **************************/
59 /************************** stack element structure ***************************/
63 /* Unified these with longer names. Maybe someday use only
64 * one set of names? -Edwin
66 /*#define TYPE_INT 0*/ /* the stack slot types must numbered in the */
67 #define TYPE_LNG TYPE_LONG /*1*/ /* same order as the ICMD_Ixxx to ICMD_Axxx */
68 #define TYPE_FLT TYPE_FLOAT /*2*/ /* instructions (LOAD and STORE) */
69 #define TYPE_DBL TYPE_DOUBLE /*3*/ /* integer, long, float, double, address */
70 #define TYPE_ADR TYPE_ADDRESS /*4*/
72 #define IS_INT_LNG_TYPE(a) (!((a)&TYPE_FLT))
73 #define IS_FLT_DBL_TYPE(a) ((a)&TYPE_FLT)
74 #define IS_2_WORD_TYPE(a) ((a)&TYPE_LNG)
79 #define SAVEDVAR 1 /* variable has to survive method invocations */
80 #define INMEMORY 2 /* variable stored in memory */
81 #define SAVEDTMP 4 /* temporary variable using a saved register */
85 #define UNDEFVAR 0 /* stack slot will become temp during regalloc*/
86 #define TEMPVAR 1 /* stack slot is temp register */
87 #define STACKVAR 2 /* stack slot is numbered stack slot */
88 #define LOCALVAR 3 /* stack slot is local variable */
89 #define ARGVAR 4 /* stack slot is argument variable */
93 stackptr prev; /* pointer to next element towards bottom */
94 s4 type; /* slot type of stack element */
95 #ifdef CACAO_TYPECHECK
96 typeinfo typeinfo; /* info on reference types */
98 s4 flags; /* flags (SAVED, INMEMORY) */
99 s4 varkind; /* kind of variable or register */
100 s4 varnum; /* number of variable */
101 s4 regoff; /* register number or memory offset */
105 /**************************** instruction structure ***************************/
108 stackptr dst; /* stack index of destination operand stack */
109 u2 opc; /* opcode of intermediate code command */
110 s4 op1; /* first operand, usually variable number */
111 imm_union val; /* immediate constant */
112 void *target; /* used for targets of branches and jumps */
113 /* and as address for list of targets for */
115 u2 line; /* line number in source file */
116 methodinfo *method; /* needed for inlining. can't be done on */
117 /* basic block level, since an inlined */
118 /* function doesn't necessarily start */
123 /**************************** basic block structure ***************************/
131 #define BBTYPECHECK_UNDEF 2
132 #define BBTYPECHECK_REACHED 3
134 #define BBTYPE_STD 0 /* standard basic block type */
135 #define BBTYPE_EXH 1 /* exception handler basic block type */
136 #define BBTYPE_SBR 2 /* subroutine basic block type */
140 int flags; /* used during stack analysis, init with -1 */
141 int type; /* basic block type (std, xhandler, subroutine*/
142 instruction *iinstr; /* pointer to intermediate code instructions */
143 int icount; /* number of intermediate code instructions */
144 int mpc; /* machine code pc at start of block */
145 stackptr instack; /* stack at begin of basic block */
146 stackptr outstack; /* stack at end of basic block */
147 int indepth; /* stack depth at begin of basic block */
148 int outdepth; /* stack depth end of basic block */
149 int pre_count; /* count of predecessor basic blocks */
150 struct branchref *branchrefs; /* list of branches to be patched */
152 basicblock *next; /* used to build a BB list (instead of array) */
153 int lflags; /* used during loop copying, init with 0 */
154 basicblock *copied_to; /* points to the copy of this basic block */
155 /* when loop nodes are copied */
160 /********** op1 values for ACONST instructions ********************************/
162 #define ACONST_LOAD 0 /* ACONST_NULL or LDC instruction */
163 #define ACONST_BUILTIN 1 /* constant argument for a builtin function call */
165 /********** JavaVM operation codes (sorted) and instruction lengths ***********/
167 extern char *icmd_names[256];
168 extern char *opcode_names[256];
169 extern int jcommandsize[256];
174 #define JAVA_ACONST_NULL 1
175 #define ICMD_ACONST 1 /* val.a = constant */
177 #define JAVA_ICONST_M1 2
178 #define ICMD_NULLCHECKPOP 2
180 #define JAVA_ICONST_0 3
181 #define ICMD_ICONST 3 /* val.i = constant */
183 #define JAVA_ICONST_1 4
185 #define JAVA_ICONST_2 5
186 #define ICMD_IDIVPOW2 5 /* val.i = constant */
188 #define JAVA_ICONST_3 6
189 #define ICMD_LDIVPOW2 6 /* val.l = constant */
191 #define JAVA_ICONST_4 7
193 #define JAVA_ICONST_5 8
195 #define JAVA_LCONST_0 9
196 #define ICMD_LCONST 9 /* val.l = constant */
198 #define JAVA_LCONST_1 10
199 #define ICMD_LCMPCONST 10 /* val.l = constant */
201 #define JAVA_FCONST_0 11
202 #define ICMD_FCONST 11 /* val.f = constant */
204 #define JAVA_FCONST_1 12
206 #define JAVA_FCONST_2 13
207 #define ICMD_ELSE_ICONST 13
209 #define JAVA_DCONST_0 14
210 #define ICMD_DCONST 14 /* val.d = constant */
212 #define JAVA_DCONST_1 15
213 #define ICMD_IFEQ_ICONST 15
215 #define JAVA_BIPUSH 16
216 #define ICMD_IFNE_ICONST 16
218 #define JAVA_SIPUSH 17
219 #define ICMD_IFLT_ICONST 17
222 #define ICMD_IFGE_ICONST 18
225 #define ICMD_IFGT_ICONST 19
227 #define JAVA_LDC2W 20
228 #define ICMD_IFLE_ICONST 20
230 /* order of LOAD instructions must be */
231 /* equal to order of TYPE_XXX defines */
232 #define JAVA_ILOAD 21
233 #define ICMD_ILOAD 21 /* op1 = local variable */
235 #define JAVA_LLOAD 22
236 #define ICMD_LLOAD 22 /* op1 = local variable */
238 #define JAVA_FLOAD 23
239 #define ICMD_FLOAD 23 /* op1 = local variable */
241 #define JAVA_DLOAD 24
242 #define ICMD_DLOAD 24 /* op1 = local variable */
244 #define JAVA_ALOAD 25
245 #define ICMD_ALOAD 25 /* op1 = local variable */
247 #define JAVA_ILOAD_0 26
248 #define ICMD_IADDCONST 26 /* val.i = constant */
250 #define JAVA_ILOAD_1 27
251 #define ICMD_ISUBCONST 27 /* val.i = constant */
253 #define JAVA_ILOAD_2 28
254 #define ICMD_IMULCONST 28 /* val.i = constant */
256 #define JAVA_ILOAD_3 29
257 #define ICMD_IANDCONST 29 /* val.i = constant */
259 #define JAVA_LLOAD_0 30
260 #define ICMD_IORCONST 30 /* val.i = constant */
262 #define JAVA_LLOAD_1 31
263 #define ICMD_IXORCONST 31 /* val.i = constant */
265 #define JAVA_LLOAD_2 32
266 #define ICMD_ISHLCONST 32 /* val.i = constant */
268 #define JAVA_LLOAD_3 33
269 #define ICMD_ISHRCONST 33 /* val.i = constant */
271 #define JAVA_FLOAD_0 34
272 #define ICMD_IUSHRCONST 34 /* val.i = constant */
274 #define JAVA_FLOAD_1 35
275 #define ICMD_IREMPOW2 35 /* val.i = constant */
277 #define JAVA_FLOAD_2 36
278 #define ICMD_LADDCONST 36 /* val.l = constant */
280 #define JAVA_FLOAD_3 37
281 #define ICMD_LSUBCONST 37 /* val.l = constant */
283 #define JAVA_DLOAD_0 38
284 #define ICMD_LMULCONST 38 /* val.l = constant */
286 #define JAVA_DLOAD_1 39
287 #define ICMD_LANDCONST 39 /* val.l = constant */
289 #define JAVA_DLOAD_2 40
290 #define ICMD_LORCONST 40 /* val.l = constant */
292 #define JAVA_DLOAD_3 41
293 #define ICMD_LXORCONST 41 /* val.l = constant */
295 #define JAVA_ALOAD_0 42
296 #define ICMD_LSHLCONST 42 /* val.l = constant */
298 #define JAVA_ALOAD_1 43
299 #define ICMD_LSHRCONST 43 /* val.l = constant */
301 #define JAVA_ALOAD_2 44
302 #define ICMD_LUSHRCONST 44 /* val.l = constant */
304 #define JAVA_ALOAD_3 45
305 #define ICMD_LREMPOW2 45 /* val.l = constant */
307 #define JAVA_IALOAD 46
308 #define ICMD_IALOAD 46
310 #define JAVA_LALOAD 47
311 #define ICMD_LALOAD 47
313 #define JAVA_FALOAD 48
314 #define ICMD_FALOAD 48
316 #define JAVA_DALOAD 49
317 #define ICMD_DALOAD 49
319 #define JAVA_AALOAD 50
320 #define ICMD_AALOAD 50
322 #define JAVA_BALOAD 51
323 #define ICMD_BALOAD 51
325 #define JAVA_CALOAD 52
326 #define ICMD_CALOAD 52
328 #define JAVA_SALOAD 53
329 #define ICMD_SALOAD 53
331 /* order of STORE instructions must be*/
332 /* equal to order of TYPE_XXX defines */
333 #define JAVA_ISTORE 54
334 #define ICMD_ISTORE 54 /* op1 = local variable */
336 #define JAVA_LSTORE 55
337 #define ICMD_LSTORE 55 /* op1 = local variable */
339 #define JAVA_FSTORE 56
340 #define ICMD_FSTORE 56 /* op1 = local variable */
342 #define JAVA_DSTORE 57
343 #define ICMD_DSTORE 57 /* op1 = local variable */
345 #define JAVA_ASTORE 58
346 #define ICMD_ASTORE 58 /* op1 = local variable */
348 #define JAVA_ISTORE_0 59
349 #define ICMD_IF_LEQ 59 /* op1 = target JavaVM pc, val.l */
351 #define JAVA_ISTORE_1 60
352 #define ICMD_IF_LNE 60 /* op1 = target JavaVM pc, val.l */
354 #define JAVA_ISTORE_2 61
355 #define ICMD_IF_LLT 61 /* op1 = target JavaVM pc, val.l */
357 #define JAVA_ISTORE_3 62
358 #define ICMD_IF_LGE 62 /* op1 = target JavaVM pc, val.l */
360 #define JAVA_LSTORE_0 63
361 #define ICMD_IF_LGT 63 /* op1 = target JavaVM pc, val.l */
363 #define JAVA_LSTORE_1 64
364 #define ICMD_IF_LLE 64 /* op1 = target JavaVM pc, val.l */
366 #define JAVA_LSTORE_2 65
367 #define ICMD_IF_LCMPEQ 65 /* op1 = target JavaVM pc */
369 #define JAVA_LSTORE_3 66
370 #define ICMD_IF_LCMPNE 66 /* op1 = target JavaVM pc */
372 #define JAVA_FSTORE_0 67
373 #define ICMD_IF_LCMPLT 67 /* op1 = target JavaVM pc */
375 #define JAVA_FSTORE_1 68
376 #define ICMD_IF_LCMPGE 68 /* op1 = target JavaVM pc */
378 #define JAVA_FSTORE_2 69
379 #define ICMD_IF_LCMPGT 69 /* op1 = target JavaVM pc */
381 #define JAVA_FSTORE_3 70
382 #define ICMD_IF_LCMPLE 70 /* op1 = target JavaVM pc */
384 #define JAVA_DSTORE_0 71
386 #define JAVA_DSTORE_1 72
388 #define JAVA_DSTORE_2 73
390 #define JAVA_DSTORE_3 74
392 #define JAVA_ASTORE_0 75
394 #define JAVA_ASTORE_1 76
396 #define JAVA_ASTORE_2 77
398 #define JAVA_ASTORE_3 78
400 #define JAVA_IASTORE 79
401 #define ICMD_IASTORE 79
403 #define JAVA_LASTORE 80
404 #define ICMD_LASTORE 80
406 #define JAVA_FASTORE 81
407 #define ICMD_FASTORE 81
409 #define JAVA_DASTORE 82
410 #define ICMD_DASTORE 82
412 #define JAVA_AASTORE 83
413 #define ICMD_AASTORE 83
415 #define JAVA_BASTORE 84
416 #define ICMD_BASTORE 84
418 #define JAVA_CASTORE 85
419 #define ICMD_CASTORE 85
421 #define JAVA_SASTORE 86
422 #define ICMD_SASTORE 86
433 #define JAVA_DUP_X1 90
434 #define ICMD_DUP_X1 90
436 #define JAVA_DUP_X2 91
437 #define ICMD_DUP_X2 91
442 #define JAVA_DUP2_X1 93
443 #define ICMD_DUP2_X1 93
445 #define JAVA_DUP2_X2 94
446 #define ICMD_DUP2_X2 94
463 #define JAVA_ISUB 100
464 #define ICMD_ISUB 100
466 #define JAVA_LSUB 101
467 #define ICMD_LSUB 101
469 #define JAVA_FSUB 102
470 #define ICMD_FSUB 102
472 #define JAVA_DSUB 103
473 #define ICMD_DSUB 103
475 #define JAVA_IMUL 104
476 #define ICMD_IMUL 104
478 #define JAVA_LMUL 105
479 #define ICMD_LMUL 105
481 #define JAVA_FMUL 106
482 #define ICMD_FMUL 106
484 #define JAVA_DMUL 107
485 #define ICMD_DMUL 107
487 #define JAVA_IDIV 108
488 #define ICMD_IDIV 108
490 #define JAVA_LDIV 109
491 #define ICMD_LDIV 109
493 #define JAVA_FDIV 110
494 #define ICMD_FDIV 110
496 #define JAVA_DDIV 111
497 #define ICMD_DDIV 111
499 #define JAVA_IREM 112
500 #define ICMD_IREM 112
502 #define JAVA_LREM 113
503 #define ICMD_LREM 113
505 #define JAVA_FREM 114
506 #define ICMD_FREM 114
508 #define JAVA_DREM 115
509 #define ICMD_DREM 115
511 #define JAVA_INEG 116
512 #define ICMD_INEG 116
514 #define JAVA_LNEG 117
515 #define ICMD_LNEG 117
517 #define JAVA_FNEG 118
518 #define ICMD_FNEG 118
520 #define JAVA_DNEG 119
521 #define ICMD_DNEG 119
523 #define JAVA_ISHL 120
524 #define ICMD_ISHL 120
526 #define JAVA_LSHL 121
527 #define ICMD_LSHL 121
529 #define JAVA_ISHR 122
530 #define ICMD_ISHR 122
532 #define JAVA_LSHR 123
533 #define ICMD_LSHR 123
535 #define JAVA_IUSHR 124
536 #define ICMD_IUSHR 124
538 #define JAVA_LUSHR 125
539 #define ICMD_LUSHR 125
541 #define JAVA_IAND 126
542 #define ICMD_IAND 126
544 #define JAVA_LAND 127
545 #define ICMD_LAND 127
553 #define JAVA_IXOR 130
554 #define ICMD_IXOR 130
556 #define JAVA_LXOR 131
557 #define ICMD_LXOR 131
559 #define JAVA_IINC 132
560 #define ICMD_IINC 132 /* op1 = local variable, val.i = constant */
598 #define JAVA_INT2BYTE 145
599 #define ICMD_INT2BYTE 145
601 #define JAVA_INT2CHAR 146
602 #define ICMD_INT2CHAR 146
604 #define JAVA_INT2SHORT 147
605 #define ICMD_INT2SHORT 147
607 #define JAVA_LCMP 148
608 #define ICMD_LCMP 148
610 #define JAVA_FCMPL 149
611 #define ICMD_FCMPL 149
613 #define JAVA_FCMPG 150
614 #define ICMD_FCMPG 150
616 #define JAVA_DCMPL 151
617 #define ICMD_DCMPL 151
619 #define JAVA_DCMPG 152
620 #define ICMD_DCMPG 152
622 #define JAVA_IFEQ 153
623 #define ICMD_IFEQ 153 /* op1 = target JavaVM pc, val.i */
625 #define JAVA_IFNE 154
626 #define ICMD_IFNE 154 /* op1 = target JavaVM pc, val.i */
628 #define JAVA_IFLT 155
629 #define ICMD_IFLT 155 /* op1 = target JavaVM pc, val.i */
631 #define JAVA_IFGE 156
632 #define ICMD_IFGE 156 /* op1 = target JavaVM pc, val.i */
634 #define JAVA_IFGT 157
635 #define ICMD_IFGT 157 /* op1 = target JavaVM pc, val.i */
637 #define JAVA_IFLE 158
638 #define ICMD_IFLE 158 /* op1 = target JavaVM pc, val.i */
640 #define JAVA_IF_ICMPEQ 159
641 #define ICMD_IF_ICMPEQ 159 /* op1 = target JavaVM pc */
643 #define JAVA_IF_ICMPNE 160
644 #define ICMD_IF_ICMPNE 160 /* op1 = target JavaVM pc */
646 #define JAVA_IF_ICMPLT 161
647 #define ICMD_IF_ICMPLT 161 /* op1 = target JavaVM pc */
649 #define JAVA_IF_ICMPGE 162
650 #define ICMD_IF_ICMPGE 162 /* op1 = target JavaVM pc */
652 #define JAVA_IF_ICMPGT 163
653 #define ICMD_IF_ICMPGT 163 /* op1 = target JavaVM pc */
655 #define JAVA_IF_ICMPLE 164
656 #define ICMD_IF_ICMPLE 164 /* op1 = target JavaVM pc */
658 #define JAVA_IF_ACMPEQ 165
659 #define ICMD_IF_ACMPEQ 165 /* op1 = target JavaVM pc */
661 #define JAVA_IF_ACMPNE 166
662 #define ICMD_IF_ACMPNE 166 /* op1 = target JavaVM pc */
664 #define JAVA_GOTO 167
665 #define ICMD_GOTO 167 /* op1 = target JavaVM pc */
668 #define ICMD_JSR 168 /* op1 = target JavaVM pc */
671 #define ICMD_RET 169 /* op1 = local variable */
673 #define JAVA_TABLESWITCH 170
674 #define ICMD_TABLESWITCH 170 /* val.a = pointer to s4 table */
675 /* length must be computed */
676 #define JAVA_LOOKUPSWITCH 171
677 #define ICMD_LOOKUPSWITCH 171 /* val.a = pointer to s4 table */
678 /* length must be computed */
679 #define JAVA_IRETURN 172
680 #define ICMD_IRETURN 172
682 #define JAVA_LRETURN 173
683 #define ICMD_LRETURN 173
685 #define JAVA_FRETURN 174
686 #define ICMD_FRETURN 174
688 #define JAVA_DRETURN 175
689 #define ICMD_DRETURN 175
691 #define JAVA_ARETURN 176
692 #define ICMD_ARETURN 176
694 #define JAVA_RETURN 177
695 #define ICMD_RETURN 177
697 #define JAVA_GETSTATIC 178
698 #define ICMD_GETSTATIC 178 /* op1 = type, val.a = field address */
700 #define JAVA_PUTSTATIC 179
701 #define ICMD_PUTSTATIC 179 /* op1 = type, val.a = field address */
703 #define JAVA_GETFIELD 180
704 #define ICMD_GETFIELD 180 /* op1 = type, val.i = field offset */
706 #define JAVA_PUTFIELD 181
707 #define ICMD_PUTFIELD 181 /* op1 = type, val.i = field offset */
709 #define JAVA_INVOKEVIRTUAL 182
710 #define ICMD_INVOKEVIRTUAL 182 /* val.a = method info pointer */
712 #define JAVA_INVOKESPECIAL 183
713 #define ICMD_INVOKESPECIAL 183 /* val.a = method info pointer */
715 #define JAVA_INVOKESTATIC 184
716 #define ICMD_INVOKESTATIC 184 /* val.a = method info pointer */
718 #define JAVA_INVOKEINTERFACE 185
719 #define ICMD_INVOKEINTERFACE 185 /* val.a = method info pointer */
721 #define ICMD_CHECKASIZE 186 /* */
724 #define ICMD_NEW 187 /* op1 = 1, val.a = class pointer */
726 #define JAVA_NEWARRAY 188
727 #define ICMD_NEWARRAY 188 /* op1 = basic type */
729 #define JAVA_ANEWARRAY 189
730 #define ICMD_ANEWARRAY 189 /* op1 = 0, val.a = array pointer */
731 /* op1 = 1, val.a = class pointer */
732 #define JAVA_ARRAYLENGTH 190
733 #define ICMD_ARRAYLENGTH 190
735 #define JAVA_ATHROW 191
736 #define ICMD_ATHROW 191
738 #define JAVA_CHECKCAST 192
739 #define ICMD_CHECKCAST 192 /* op1 = 0, val.a = array pointer */
740 /* op1 = 1, val.a = class pointer */
741 #define JAVA_INSTANCEOF 193
742 #define ICMD_INSTANCEOF 193 /* op1 = 0, val.a = array pointer */
743 /* op1 = 1, val.a = class pointer */
744 #define JAVA_MONITORENTER 194
745 #define ICMD_MONITORENTER 194
747 #define JAVA_MONITOREXIT 195
748 #define ICMD_MONITOREXIT 195
750 #define JAVA_WIDE 196
752 #define JAVA_MULTIANEWARRAY 197
753 #define ICMD_MULTIANEWARRAY 197 /* op1 = dimension, val.a = array */
755 #define JAVA_IFNULL 198
756 #define ICMD_IFNULL 198 /* op1 = target JavaVM pc */
758 #define JAVA_IFNONNULL 199
759 #define ICMD_IFNONNULL 199 /* op1 = target JavaVM pc */
761 #define JAVA_GOTO_W 200
763 #define JAVA_JSR_W 201
765 #define JAVA_BREAKPOINT 202
767 #define ICMD_CHECKEXCEPTION 203 /* check for an exception */
769 #define ICMD_IASTORECONST 204
771 #define ICMD_LASTORECONST 205
773 #define ICMD_FASTORECONST 206
775 #define ICMD_DASTORECONST 207
777 #define ICMD_AASTORECONST 208
779 #define ICMD_BASTORECONST 209
781 #define ICMD_CASTORECONST 210
783 #define ICMD_SASTORECONST 211
785 #define ICMD_INLINE_START 251 /* before the first instruction of an inlined method */
786 #define ICMD_INLINE_END 252 /* after the last instruction of an inlined method */
787 #define ICMD_BUILTIN3 253 /* internal opcode */
788 #define ICMD_BUILTIN2 254 /* internal opcode */
789 #define ICMD_BUILTIN1 255 /* internal opcode */
790 #define ICMD_READONLY_ARG 1024 /* used for inlining, opcodes 1024-1028 are used */
791 #define ICMD_CLEAR_ARGREN 1029 /* indicates the start of a new inlined method argument renaming must be reset */
794 /******************* description of JavaVM instructions ***********************/
796 #if defined(USEBUILTINTABLE)
798 builtin_descriptor *find_builtin(int opcode);
800 #endif /* USEBUILTINTABLE */
803 /***************************** register types *********************************/
805 #define REG_RES 0 /* reserved register for OS or code generator */
806 #define REG_RET 1 /* return value register */
807 #define REG_EXC 2 /* exception value register */
808 #define REG_SAV 3 /* (callee) saved register */
809 #define REG_TMP 4 /* scratch temporary register (caller saved) */
810 #define REG_ARG 5 /* argument register (caller saved) */
812 #define REG_END -1 /* last entry in tables */
814 #define PARAMMODE_NUMBERED 0
815 #define PARAMMODE_STUFFED 1
818 /***************************** register info block ****************************/
820 extern int stackreq[256];
823 #if defined(__I386__)
824 extern bool method_uses_ecx;
825 extern bool method_uses_edx;
829 /* function prototypes */
831 functionptr jit_compile(methodinfo *m); /* compile a method with jit compiler */
833 void jit_init(); /* compiler initialisation */
834 void jit_close(); /* compiler finalisation */
836 void compile_all_class_methods(classinfo *c);
838 u1 *createcompilerstub(methodinfo *m);
839 u1 *createnativestub(functionptr f, methodinfo *m);
841 void removecompilerstub(u1 *stub);
842 void removenativestub(u1 *stub);
848 * These are local overrides for various environment variables in Emacs.
849 * Please do not remove this and leave it at the end of the file, where
850 * Emacs will automagically detect them.
851 * ---------------------------------------------------------------------
854 * indent-tabs-mode: t