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 1341 2004-07-21 16:06:48Z twisti $
43 #include "jit/codegen.inc.h"
44 #include "toolbox/chain.h"
47 /**************************** resolve typedef-cycles **************************/
49 typedef struct stackelement stackelement;
50 typedef stackelement *stackptr;
51 typedef struct basicblock basicblock;
52 typedef struct instruction instruction;
53 typedef struct subroutineinfo subroutineinfo;
54 typedef struct varinfo varinfo;
55 typedef varinfo *varinfoptr;
58 /************************** stack element structure ***************************/
62 /* Unified these with longer names. Maybe someday use only
63 * one set of names? -Edwin
65 /*#define TYPE_INT 0*/ /* the stack slot types must numbered in the */
66 #define TYPE_LNG TYPE_LONG /*1*/ /* same order as the ICMD_Ixxx to ICMD_Axxx */
67 #define TYPE_FLT TYPE_FLOAT /*2*/ /* instructions (LOAD and STORE) */
68 #define TYPE_DBL TYPE_DOUBLE /*3*/ /* integer, long, float, double, address */
69 #define TYPE_ADR TYPE_ADDRESS /*4*/
71 #define IS_INT_LNG_TYPE(a) (!((a)&TYPE_FLT))
72 #define IS_FLT_DBL_TYPE(a) ((a)&TYPE_FLT)
73 #define IS_2_WORD_TYPE(a) ((a)&TYPE_LNG)
78 #define SAVEDVAR 1 /* variable has to survive method invocations */
79 #define INMEMORY 2 /* variable stored in memory */
80 #define SAVEDTMP 4 /* temporary variable using a saved register */
84 #define UNDEFVAR 0 /* stack slot will become temp during regalloc*/
85 #define TEMPVAR 1 /* stack slot is temp register */
86 #define STACKVAR 2 /* stack slot is numbered stack slot */
87 #define LOCALVAR 3 /* stack slot is local variable */
88 #define ARGVAR 4 /* stack slot is argument variable */
92 stackptr prev; /* pointer to next element towards bottom */
93 s4 type; /* slot type of stack element */
94 #ifdef CACAO_TYPECHECK
95 typeinfo typeinfo; /* info on reference types */
97 s4 flags; /* flags (SAVED, INMEMORY) */
98 s4 varkind; /* kind of variable or register */
99 s4 varnum; /* number of variable */
100 s4 regoff; /* register number or memory offset */
104 /**************************** instruction structure ***************************/
107 stackptr dst; /* stack index of destination operand stack */
108 u2 opc; /* opcode of intermediate code command */
109 s4 op1; /* first operand, usually variable number */
110 imm_union val; /* immediate constant */
111 void *target; /* used for targets of branches and jumps */
112 /* and as address for list of targets for */
114 u2 line; /* line number in source file */
115 methodinfo *method; /* needed for inlining. can't be done on */
116 /* basic block level, since an inlined */
117 /* function doesn't start necessarily start */
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 */
167 /********** op1 values for ACONST instructions ********************************/
169 #define ACONST_LOAD 0 /* ACONST_NULL or LDC instruction */
170 #define ACONST_BUILTIN 1 /* constant argument for a builtin function call */
172 /********** JavaVM operation codes (sorted) and instruction lengths ***********/
174 extern char *icmd_names[256];
175 extern char *opcode_names[256];
176 extern int jcommandsize[256];
181 #define JAVA_ACONST_NULL 1
182 #define ICMD_ACONST 1 /* val.a = constant */
184 #define JAVA_ICONST_M1 2
185 #define ICMD_NULLCHECKPOP 2
187 #define JAVA_ICONST_0 3
188 #define ICMD_ICONST 3 /* val.i = constant */
190 #define JAVA_ICONST_1 4
192 #define JAVA_ICONST_2 5
193 #define ICMD_IDIVPOW2 5 /* val.i = constant */
195 #define JAVA_ICONST_3 6
196 #define ICMD_LDIVPOW2 6 /* val.l = constant */
198 #define JAVA_ICONST_4 7
200 #define JAVA_ICONST_5 8
202 #define JAVA_LCONST_0 9
203 #define ICMD_LCONST 9 /* val.l = constant */
205 #define JAVA_LCONST_1 10
206 #define ICMD_LCMPCONST 10 /* val.l = constant */
208 #define JAVA_FCONST_0 11
209 #define ICMD_FCONST 11 /* val.f = constant */
211 #define JAVA_FCONST_1 12
213 #define JAVA_FCONST_2 13
214 #define ICMD_ELSE_ICONST 13
216 #define JAVA_DCONST_0 14
217 #define ICMD_DCONST 14 /* val.d = constant */
219 #define JAVA_DCONST_1 15
220 #define ICMD_IFEQ_ICONST 15
222 #define JAVA_BIPUSH 16
223 #define ICMD_IFNE_ICONST 16
225 #define JAVA_SIPUSH 17
226 #define ICMD_IFLT_ICONST 17
229 #define ICMD_IFGE_ICONST 18
232 #define ICMD_IFGT_ICONST 19
234 #define JAVA_LDC2W 20
235 #define ICMD_IFLE_ICONST 20
237 /* order of LOAD instructions must be */
238 /* equal to order of TYPE_XXX defines */
239 #define JAVA_ILOAD 21
240 #define ICMD_ILOAD 21 /* op1 = local variable */
242 #define JAVA_LLOAD 22
243 #define ICMD_LLOAD 22 /* op1 = local variable */
245 #define JAVA_FLOAD 23
246 #define ICMD_FLOAD 23 /* op1 = local variable */
248 #define JAVA_DLOAD 24
249 #define ICMD_DLOAD 24 /* op1 = local variable */
251 #define JAVA_ALOAD 25
252 #define ICMD_ALOAD 25 /* op1 = local variable */
254 #define JAVA_ILOAD_0 26
255 #define ICMD_IADDCONST 26 /* val.i = constant */
257 #define JAVA_ILOAD_1 27
258 #define ICMD_ISUBCONST 27 /* val.i = constant */
260 #define JAVA_ILOAD_2 28
261 #define ICMD_IMULCONST 28 /* val.i = constant */
263 #define JAVA_ILOAD_3 29
264 #define ICMD_IANDCONST 29 /* val.i = constant */
266 #define JAVA_LLOAD_0 30
267 #define ICMD_IORCONST 30 /* val.i = constant */
269 #define JAVA_LLOAD_1 31
270 #define ICMD_IXORCONST 31 /* val.i = constant */
272 #define JAVA_LLOAD_2 32
273 #define ICMD_ISHLCONST 32 /* val.i = constant */
275 #define JAVA_LLOAD_3 33
276 #define ICMD_ISHRCONST 33 /* val.i = constant */
278 #define JAVA_FLOAD_0 34
279 #define ICMD_IUSHRCONST 34 /* val.i = constant */
281 #define JAVA_FLOAD_1 35
282 #define ICMD_IREMPOW2 35 /* val.i = constant */
284 #define JAVA_FLOAD_2 36
285 #define ICMD_LADDCONST 36 /* val.l = constant */
287 #define JAVA_FLOAD_3 37
288 #define ICMD_LSUBCONST 37 /* val.l = constant */
290 #define JAVA_DLOAD_0 38
291 #define ICMD_LMULCONST 38 /* val.l = constant */
293 #define JAVA_DLOAD_1 39
294 #define ICMD_LANDCONST 39 /* val.l = constant */
296 #define JAVA_DLOAD_2 40
297 #define ICMD_LORCONST 40 /* val.l = constant */
299 #define JAVA_DLOAD_3 41
300 #define ICMD_LXORCONST 41 /* val.l = constant */
302 #define JAVA_ALOAD_0 42
303 #define ICMD_LSHLCONST 42 /* val.l = constant */
305 #define JAVA_ALOAD_1 43
306 #define ICMD_LSHRCONST 43 /* val.l = constant */
308 #define JAVA_ALOAD_2 44
309 #define ICMD_LUSHRCONST 44 /* val.l = constant */
311 #define JAVA_ALOAD_3 45
312 #define ICMD_LREMPOW2 45 /* val.l = constant */
314 #define JAVA_IALOAD 46
315 #define ICMD_IALOAD 46
317 #define JAVA_LALOAD 47
318 #define ICMD_LALOAD 47
320 #define JAVA_FALOAD 48
321 #define ICMD_FALOAD 48
323 #define JAVA_DALOAD 49
324 #define ICMD_DALOAD 49
326 #define JAVA_AALOAD 50
327 #define ICMD_AALOAD 50
329 #define JAVA_BALOAD 51
330 #define ICMD_BALOAD 51
332 #define JAVA_CALOAD 52
333 #define ICMD_CALOAD 52
335 #define JAVA_SALOAD 53
336 #define ICMD_SALOAD 53
338 /* order of STORE instructions must be*/
339 /* equal to order of TYPE_XXX defines */
340 #define JAVA_ISTORE 54
341 #define ICMD_ISTORE 54 /* op1 = local variable */
343 #define JAVA_LSTORE 55
344 #define ICMD_LSTORE 55 /* op1 = local variable */
346 #define JAVA_FSTORE 56
347 #define ICMD_FSTORE 56 /* op1 = local variable */
349 #define JAVA_DSTORE 57
350 #define ICMD_DSTORE 57 /* op1 = local variable */
352 #define JAVA_ASTORE 58
353 #define ICMD_ASTORE 58 /* op1 = local variable */
355 #define JAVA_ISTORE_0 59
356 #define ICMD_IF_LEQ 59 /* op1 = target JavaVM pc, val.l */
358 #define JAVA_ISTORE_1 60
359 #define ICMD_IF_LNE 60 /* op1 = target JavaVM pc, val.l */
361 #define JAVA_ISTORE_2 61
362 #define ICMD_IF_LLT 61 /* op1 = target JavaVM pc, val.l */
364 #define JAVA_ISTORE_3 62
365 #define ICMD_IF_LGE 62 /* op1 = target JavaVM pc, val.l */
367 #define JAVA_LSTORE_0 63
368 #define ICMD_IF_LGT 63 /* op1 = target JavaVM pc, val.l */
370 #define JAVA_LSTORE_1 64
371 #define ICMD_IF_LLE 64 /* op1 = target JavaVM pc, val.l */
373 #define JAVA_LSTORE_2 65
374 #define ICMD_IF_LCMPEQ 65 /* op1 = target JavaVM pc */
376 #define JAVA_LSTORE_3 66
377 #define ICMD_IF_LCMPNE 66 /* op1 = target JavaVM pc */
379 #define JAVA_FSTORE_0 67
380 #define ICMD_IF_LCMPLT 67 /* op1 = target JavaVM pc */
382 #define JAVA_FSTORE_1 68
383 #define ICMD_IF_LCMPGE 68 /* op1 = target JavaVM pc */
385 #define JAVA_FSTORE_2 69
386 #define ICMD_IF_LCMPGT 69 /* op1 = target JavaVM pc */
388 #define JAVA_FSTORE_3 70
389 #define ICMD_IF_LCMPLE 70 /* op1 = target JavaVM pc */
391 #define JAVA_DSTORE_0 71
393 #define JAVA_DSTORE_1 72
395 #define JAVA_DSTORE_2 73
397 #define JAVA_DSTORE_3 74
399 #define JAVA_ASTORE_0 75
401 #define JAVA_ASTORE_1 76
403 #define JAVA_ASTORE_2 77
405 #define JAVA_ASTORE_3 78
407 #define JAVA_IASTORE 79
408 #define ICMD_IASTORE 79
410 #define JAVA_LASTORE 80
411 #define ICMD_LASTORE 80
413 #define JAVA_FASTORE 81
414 #define ICMD_FASTORE 81
416 #define JAVA_DASTORE 82
417 #define ICMD_DASTORE 82
419 #define JAVA_AASTORE 83
420 #define ICMD_AASTORE 83
422 #define JAVA_BASTORE 84
423 #define ICMD_BASTORE 84
425 #define JAVA_CASTORE 85
426 #define ICMD_CASTORE 85
428 #define JAVA_SASTORE 86
429 #define ICMD_SASTORE 86
440 #define JAVA_DUP_X1 90
441 #define ICMD_DUP_X1 90
443 #define JAVA_DUP_X2 91
444 #define ICMD_DUP_X2 91
449 #define JAVA_DUP2_X1 93
450 #define ICMD_DUP2_X1 93
452 #define JAVA_DUP2_X2 94
453 #define ICMD_DUP2_X2 94
470 #define JAVA_ISUB 100
471 #define ICMD_ISUB 100
473 #define JAVA_LSUB 101
474 #define ICMD_LSUB 101
476 #define JAVA_FSUB 102
477 #define ICMD_FSUB 102
479 #define JAVA_DSUB 103
480 #define ICMD_DSUB 103
482 #define JAVA_IMUL 104
483 #define ICMD_IMUL 104
485 #define JAVA_LMUL 105
486 #define ICMD_LMUL 105
488 #define JAVA_FMUL 106
489 #define ICMD_FMUL 106
491 #define JAVA_DMUL 107
492 #define ICMD_DMUL 107
494 #define JAVA_IDIV 108
495 #define ICMD_IDIV 108
497 #define JAVA_LDIV 109
498 #define ICMD_LDIV 109
500 #define JAVA_FDIV 110
501 #define ICMD_FDIV 110
503 #define JAVA_DDIV 111
504 #define ICMD_DDIV 111
506 #define JAVA_IREM 112
507 #define ICMD_IREM 112
509 #define JAVA_LREM 113
510 #define ICMD_LREM 113
512 #define JAVA_FREM 114
513 #define ICMD_FREM 114
515 #define JAVA_DREM 115
516 #define ICMD_DREM 115
518 #define JAVA_INEG 116
519 #define ICMD_INEG 116
521 #define JAVA_LNEG 117
522 #define ICMD_LNEG 117
524 #define JAVA_FNEG 118
525 #define ICMD_FNEG 118
527 #define JAVA_DNEG 119
528 #define ICMD_DNEG 119
530 #define JAVA_ISHL 120
531 #define ICMD_ISHL 120
533 #define JAVA_LSHL 121
534 #define ICMD_LSHL 121
536 #define JAVA_ISHR 122
537 #define ICMD_ISHR 122
539 #define JAVA_LSHR 123
540 #define ICMD_LSHR 123
542 #define JAVA_IUSHR 124
543 #define ICMD_IUSHR 124
545 #define JAVA_LUSHR 125
546 #define ICMD_LUSHR 125
548 #define JAVA_IAND 126
549 #define ICMD_IAND 126
551 #define JAVA_LAND 127
552 #define ICMD_LAND 127
560 #define JAVA_IXOR 130
561 #define ICMD_IXOR 130
563 #define JAVA_LXOR 131
564 #define ICMD_LXOR 131
566 #define JAVA_IINC 132
567 #define ICMD_IINC 132 /* op1 = local variable, val.i = constant */
605 #define JAVA_INT2BYTE 145
606 #define ICMD_INT2BYTE 145
608 #define JAVA_INT2CHAR 146
609 #define ICMD_INT2CHAR 146
611 #define JAVA_INT2SHORT 147
612 #define ICMD_INT2SHORT 147
614 #define JAVA_LCMP 148
615 #define ICMD_LCMP 148
617 #define JAVA_FCMPL 149
618 #define ICMD_FCMPL 149
620 #define JAVA_FCMPG 150
621 #define ICMD_FCMPG 150
623 #define JAVA_DCMPL 151
624 #define ICMD_DCMPL 151
626 #define JAVA_DCMPG 152
627 #define ICMD_DCMPG 152
629 #define JAVA_IFEQ 153
630 #define ICMD_IFEQ 153 /* op1 = target JavaVM pc, val.i */
632 #define JAVA_IFNE 154
633 #define ICMD_IFNE 154 /* op1 = target JavaVM pc, val.i */
635 #define JAVA_IFLT 155
636 #define ICMD_IFLT 155 /* op1 = target JavaVM pc, val.i */
638 #define JAVA_IFGE 156
639 #define ICMD_IFGE 156 /* op1 = target JavaVM pc, val.i */
641 #define JAVA_IFGT 157
642 #define ICMD_IFGT 157 /* op1 = target JavaVM pc, val.i */
644 #define JAVA_IFLE 158
645 #define ICMD_IFLE 158 /* op1 = target JavaVM pc, val.i */
647 #define JAVA_IF_ICMPEQ 159
648 #define ICMD_IF_ICMPEQ 159 /* op1 = target JavaVM pc */
650 #define JAVA_IF_ICMPNE 160
651 #define ICMD_IF_ICMPNE 160 /* op1 = target JavaVM pc */
653 #define JAVA_IF_ICMPLT 161
654 #define ICMD_IF_ICMPLT 161 /* op1 = target JavaVM pc */
656 #define JAVA_IF_ICMPGE 162
657 #define ICMD_IF_ICMPGE 162 /* op1 = target JavaVM pc */
659 #define JAVA_IF_ICMPGT 163
660 #define ICMD_IF_ICMPGT 163 /* op1 = target JavaVM pc */
662 #define JAVA_IF_ICMPLE 164
663 #define ICMD_IF_ICMPLE 164 /* op1 = target JavaVM pc */
665 #define JAVA_IF_ACMPEQ 165
666 #define ICMD_IF_ACMPEQ 165 /* op1 = target JavaVM pc */
668 #define JAVA_IF_ACMPNE 166
669 #define ICMD_IF_ACMPNE 166 /* op1 = target JavaVM pc */
671 #define JAVA_GOTO 167
672 #define ICMD_GOTO 167 /* op1 = target JavaVM pc */
675 #define ICMD_JSR 168 /* op1 = target JavaVM pc */
678 #define ICMD_RET 169 /* op1 = local variable */
680 #define JAVA_TABLESWITCH 170
681 #define ICMD_TABLESWITCH 170 /* val.a = pointer to s4 table */
682 /* length must be computed */
683 #define JAVA_LOOKUPSWITCH 171
684 #define ICMD_LOOKUPSWITCH 171 /* val.a = pointer to s4 table */
685 /* length must be computed */
686 #define JAVA_IRETURN 172
687 #define ICMD_IRETURN 172
689 #define JAVA_LRETURN 173
690 #define ICMD_LRETURN 173
692 #define JAVA_FRETURN 174
693 #define ICMD_FRETURN 174
695 #define JAVA_DRETURN 175
696 #define ICMD_DRETURN 175
698 #define JAVA_ARETURN 176
699 #define ICMD_ARETURN 176
701 #define JAVA_RETURN 177
702 #define ICMD_RETURN 177
704 #define JAVA_GETSTATIC 178
705 #define ICMD_GETSTATIC 178 /* op1 = type, val.a = field address */
707 #define JAVA_PUTSTATIC 179
708 #define ICMD_PUTSTATIC 179 /* op1 = type, val.a = field address */
710 #define JAVA_GETFIELD 180
711 #define ICMD_GETFIELD 180 /* op1 = type, val.i = field offset */
713 #define JAVA_PUTFIELD 181
714 #define ICMD_PUTFIELD 181 /* op1 = type, val.i = field offset */
716 #define JAVA_INVOKEVIRTUAL 182
717 #define ICMD_INVOKEVIRTUAL 182 /* val.a = method info pointer */
719 #define JAVA_INVOKESPECIAL 183
720 #define ICMD_INVOKESPECIAL 183 /* val.a = method info pointer */
722 #define JAVA_INVOKESTATIC 184
723 #define ICMD_INVOKESTATIC 184 /* val.a = method info pointer */
725 #define JAVA_INVOKEINTERFACE 185
726 #define ICMD_INVOKEINTERFACE 185 /* val.a = method info pointer */
728 #define ICMD_CHECKASIZE 186 /* */
731 #define ICMD_NEW 187 /* op1 = 1, val.a = class pointer */
733 #define JAVA_NEWARRAY 188
734 #define ICMD_NEWARRAY 188 /* op1 = basic type */
736 #define JAVA_ANEWARRAY 189
737 #define ICMD_ANEWARRAY 189 /* op1 = 0, val.a = array pointer */
738 /* op1 = 1, val.a = class pointer */
739 #define JAVA_ARRAYLENGTH 190
740 #define ICMD_ARRAYLENGTH 190
742 #define JAVA_ATHROW 191
743 #define ICMD_ATHROW 191
745 #define JAVA_CHECKCAST 192
746 #define ICMD_CHECKCAST 192 /* op1 = 0, val.a = array pointer */
747 /* op1 = 1, val.a = class pointer */
748 #define JAVA_INSTANCEOF 193
749 #define ICMD_INSTANCEOF 193 /* op1 = 0, val.a = array pointer */
750 /* op1 = 1, val.a = class pointer */
751 #define JAVA_MONITORENTER 194
752 #define ICMD_MONITORENTER 194
754 #define JAVA_MONITOREXIT 195
755 #define ICMD_MONITOREXIT 195
757 #define JAVA_WIDE 196
759 #define JAVA_MULTIANEWARRAY 197
760 #define ICMD_MULTIANEWARRAY 197 /* op1 = dimension, val.a = array */
762 #define JAVA_IFNULL 198
763 #define ICMD_IFNULL 198 /* op1 = target JavaVM pc */
765 #define JAVA_IFNONNULL 199
766 #define ICMD_IFNONNULL 199 /* op1 = target JavaVM pc */
768 #define JAVA_GOTO_W 200
770 #define JAVA_JSR_W 201
772 #define JAVA_BREAKPOINT 202
774 #define ICMD_CHECKEXCEPTION 203 /* check for an exception */
776 #define ICMD_IASTORECONST 204
778 #define ICMD_LASTORECONST 205
780 #define ICMD_FASTORECONST 206
782 #define ICMD_DASTORECONST 207
784 #define ICMD_AASTORECONST 208
786 #define ICMD_BASTORECONST 209
788 #define ICMD_CASTORECONST 210
790 #define ICMD_SASTORECONST 211
792 #define ICMD_BUILTIN3 253 /* internal opcode */
793 #define ICMD_BUILTIN2 254 /* internal opcode */
794 #define ICMD_BUILTIN1 255 /* internal opcode */
795 #define ICMD_READONLY_ARG 1024 /* used for inlining, opcodes 1024-1028 are used */
796 #define ICMD_CLEAR_ARGREN 1029 /* indicates the start of a new inlined method argument renaming must be reset */
799 /******************* description of JavaVM instructions ***********************/
801 #if defined(USEBUILTINTABLE)
803 builtin_descriptor *find_builtin(int opcode);
805 #endif /* USEBUILTINTABLE */
808 /***************************** register types *********************************/
810 #define REG_RES 0 /* reserved register for OS or code generator */
811 #define REG_RET 1 /* return value register */
812 #define REG_EXC 2 /* exception value register */
813 #define REG_SAV 3 /* (callee) saved register */
814 #define REG_TMP 4 /* scratch temporary register (caller saved) */
815 #define REG_ARG 5 /* argument register (caller saved) */
817 #define REG_END -1 /* last entry in tables */
819 #define PARAMMODE_NUMBERED 0
820 #define PARAMMODE_STUFFED 1
823 /***************************** register info block ****************************/
825 extern int nregdescint[]; /* description of integer registers */
826 extern int nregdescfloat[]; /* description of floating point registers */
828 extern int stackreq[256];
831 #if defined(__I386__)
832 extern bool method_uses_ecx;
833 extern bool method_uses_edx;
837 /* function prototypes */
839 methodptr jit_compile (methodinfo *m); /* compile a method with jit compiler */
841 void jit_init(); /* compiler initialisation */
842 void jit_close(); /* compiler finalisation */
844 void compile_all_class_methods(classinfo *c);
846 u1 *createcompilerstub(methodinfo *m);
847 u1 *createnativestub(functionptr f, methodinfo *m);
849 void removecompilerstub(u1 *stub);
850 void removenativestub(u1 *stub);
856 * These are local overrides for various environment variables in Emacs.
857 * Please do not remove this and leave it at the end of the file, where
858 * Emacs will automagically detect them.
859 * ---------------------------------------------------------------------
862 * indent-tabs-mode: t