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 1456 2004-11-05 14:33:14Z 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;
56 /************************** stack element structure ***************************/
60 /* Unified these with longer names. Maybe someday use only
61 * one set of names? -Edwin
63 /*#define TYPE_INT 0*/ /* the stack slot types must numbered in the */
64 #define TYPE_LNG TYPE_LONG /*1*/ /* same order as the ICMD_Ixxx to ICMD_Axxx */
65 #define TYPE_FLT TYPE_FLOAT /*2*/ /* instructions (LOAD and STORE) */
66 #define TYPE_DBL TYPE_DOUBLE /*3*/ /* integer, long, float, double, address */
67 #define TYPE_ADR TYPE_ADDRESS /*4*/
69 #define IS_INT_LNG_TYPE(a) (!((a)&TYPE_FLT))
70 #define IS_FLT_DBL_TYPE(a) ((a)&TYPE_FLT)
71 #define IS_2_WORD_TYPE(a) ((a)&TYPE_LNG)
76 #define SAVEDVAR 1 /* variable has to survive method invocations */
77 #define INMEMORY 2 /* variable stored in memory */
78 #define SAVEDTMP 4 /* temporary variable using a saved register */
82 #define UNDEFVAR 0 /* stack slot will become temp during regalloc*/
83 #define TEMPVAR 1 /* stack slot is temp register */
84 #define STACKVAR 2 /* stack slot is numbered stack slot */
85 #define LOCALVAR 3 /* stack slot is local variable */
86 #define ARGVAR 4 /* stack slot is argument variable */
90 stackptr prev; /* pointer to next element towards bottom */
91 s4 type; /* slot type of stack element */
92 #ifdef CACAO_TYPECHECK
93 typeinfo typeinfo; /* info on reference types */
95 s4 flags; /* flags (SAVED, INMEMORY) */
96 s4 varkind; /* kind of variable or register */
97 s4 varnum; /* number of variable */
98 s4 regoff; /* register number or memory offset */
102 /**************************** instruction structure ***************************/
105 stackptr dst; /* stack index of destination operand stack */
106 u2 opc; /* opcode of intermediate code command */
107 s4 op1; /* first operand, usually variable number */
108 imm_union val; /* immediate constant */
109 void *target; /* used for targets of branches and jumps */
110 /* and as address for list of targets for */
112 u2 line; /* line number in source file */
113 methodinfo *method; /* needed for inlining. can't be done on */
114 /* basic block level, since an inlined */
115 /* function doesn't start necessarily start */
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 */
137 int flags; /* used during stack analysis, init with -1 */
138 int type; /* basic block type (std, xhandler, subroutine*/
139 instruction *iinstr; /* pointer to intermediate code instructions */
140 int icount; /* number of intermediate code instructions */
141 int mpc; /* machine code pc at start of block */
142 stackptr instack; /* stack at begin of basic block */
143 stackptr outstack; /* stack at end of basic block */
144 int indepth; /* stack depth at begin of basic block */
145 int outdepth; /* stack depth end of basic block */
146 int pre_count; /* count of predecessor basic blocks */
147 struct branchref *branchrefs; /* list of branches to be patched */
149 basicblock *next; /* used to build a BB list (instead of array) */
150 int lflags; /* used during loop copying, init with 0 */
151 basicblock *copied_to; /* points to the copy of this basic block */
152 /* when loop nodes are copied */
157 /********** op1 values for ACONST instructions ********************************/
159 #define ACONST_LOAD 0 /* ACONST_NULL or LDC instruction */
160 #define ACONST_BUILTIN 1 /* constant argument for a builtin function call */
162 /********** JavaVM operation codes (sorted) and instruction lengths ***********/
164 extern char *icmd_names[256];
165 extern char *opcode_names[256];
166 extern int jcommandsize[256];
171 #define JAVA_ACONST_NULL 1
172 #define ICMD_ACONST 1 /* val.a = constant */
174 #define JAVA_ICONST_M1 2
175 #define ICMD_NULLCHECKPOP 2
177 #define JAVA_ICONST_0 3
178 #define ICMD_ICONST 3 /* val.i = constant */
180 #define JAVA_ICONST_1 4
182 #define JAVA_ICONST_2 5
183 #define ICMD_IDIVPOW2 5 /* val.i = constant */
185 #define JAVA_ICONST_3 6
186 #define ICMD_LDIVPOW2 6 /* val.l = constant */
188 #define JAVA_ICONST_4 7
190 #define JAVA_ICONST_5 8
192 #define JAVA_LCONST_0 9
193 #define ICMD_LCONST 9 /* val.l = constant */
195 #define JAVA_LCONST_1 10
196 #define ICMD_LCMPCONST 10 /* val.l = constant */
198 #define JAVA_FCONST_0 11
199 #define ICMD_FCONST 11 /* val.f = constant */
201 #define JAVA_FCONST_1 12
203 #define JAVA_FCONST_2 13
204 #define ICMD_ELSE_ICONST 13
206 #define JAVA_DCONST_0 14
207 #define ICMD_DCONST 14 /* val.d = constant */
209 #define JAVA_DCONST_1 15
210 #define ICMD_IFEQ_ICONST 15
212 #define JAVA_BIPUSH 16
213 #define ICMD_IFNE_ICONST 16
215 #define JAVA_SIPUSH 17
216 #define ICMD_IFLT_ICONST 17
219 #define ICMD_IFGE_ICONST 18
222 #define ICMD_IFGT_ICONST 19
224 #define JAVA_LDC2W 20
225 #define ICMD_IFLE_ICONST 20
227 /* order of LOAD instructions must be */
228 /* equal to order of TYPE_XXX defines */
229 #define JAVA_ILOAD 21
230 #define ICMD_ILOAD 21 /* op1 = local variable */
232 #define JAVA_LLOAD 22
233 #define ICMD_LLOAD 22 /* op1 = local variable */
235 #define JAVA_FLOAD 23
236 #define ICMD_FLOAD 23 /* op1 = local variable */
238 #define JAVA_DLOAD 24
239 #define ICMD_DLOAD 24 /* op1 = local variable */
241 #define JAVA_ALOAD 25
242 #define ICMD_ALOAD 25 /* op1 = local variable */
244 #define JAVA_ILOAD_0 26
245 #define ICMD_IADDCONST 26 /* val.i = constant */
247 #define JAVA_ILOAD_1 27
248 #define ICMD_ISUBCONST 27 /* val.i = constant */
250 #define JAVA_ILOAD_2 28
251 #define ICMD_IMULCONST 28 /* val.i = constant */
253 #define JAVA_ILOAD_3 29
254 #define ICMD_IANDCONST 29 /* val.i = constant */
256 #define JAVA_LLOAD_0 30
257 #define ICMD_IORCONST 30 /* val.i = constant */
259 #define JAVA_LLOAD_1 31
260 #define ICMD_IXORCONST 31 /* val.i = constant */
262 #define JAVA_LLOAD_2 32
263 #define ICMD_ISHLCONST 32 /* val.i = constant */
265 #define JAVA_LLOAD_3 33
266 #define ICMD_ISHRCONST 33 /* val.i = constant */
268 #define JAVA_FLOAD_0 34
269 #define ICMD_IUSHRCONST 34 /* val.i = constant */
271 #define JAVA_FLOAD_1 35
272 #define ICMD_IREMPOW2 35 /* val.i = constant */
274 #define JAVA_FLOAD_2 36
275 #define ICMD_LADDCONST 36 /* val.l = constant */
277 #define JAVA_FLOAD_3 37
278 #define ICMD_LSUBCONST 37 /* val.l = constant */
280 #define JAVA_DLOAD_0 38
281 #define ICMD_LMULCONST 38 /* val.l = constant */
283 #define JAVA_DLOAD_1 39
284 #define ICMD_LANDCONST 39 /* val.l = constant */
286 #define JAVA_DLOAD_2 40
287 #define ICMD_LORCONST 40 /* val.l = constant */
289 #define JAVA_DLOAD_3 41
290 #define ICMD_LXORCONST 41 /* val.l = constant */
292 #define JAVA_ALOAD_0 42
293 #define ICMD_LSHLCONST 42 /* val.l = constant */
295 #define JAVA_ALOAD_1 43
296 #define ICMD_LSHRCONST 43 /* val.l = constant */
298 #define JAVA_ALOAD_2 44
299 #define ICMD_LUSHRCONST 44 /* val.l = constant */
301 #define JAVA_ALOAD_3 45
302 #define ICMD_LREMPOW2 45 /* val.l = constant */
304 #define JAVA_IALOAD 46
305 #define ICMD_IALOAD 46
307 #define JAVA_LALOAD 47
308 #define ICMD_LALOAD 47
310 #define JAVA_FALOAD 48
311 #define ICMD_FALOAD 48
313 #define JAVA_DALOAD 49
314 #define ICMD_DALOAD 49
316 #define JAVA_AALOAD 50
317 #define ICMD_AALOAD 50
319 #define JAVA_BALOAD 51
320 #define ICMD_BALOAD 51
322 #define JAVA_CALOAD 52
323 #define ICMD_CALOAD 52
325 #define JAVA_SALOAD 53
326 #define ICMD_SALOAD 53
328 /* order of STORE instructions must be*/
329 /* equal to order of TYPE_XXX defines */
330 #define JAVA_ISTORE 54
331 #define ICMD_ISTORE 54 /* op1 = local variable */
333 #define JAVA_LSTORE 55
334 #define ICMD_LSTORE 55 /* op1 = local variable */
336 #define JAVA_FSTORE 56
337 #define ICMD_FSTORE 56 /* op1 = local variable */
339 #define JAVA_DSTORE 57
340 #define ICMD_DSTORE 57 /* op1 = local variable */
342 #define JAVA_ASTORE 58
343 #define ICMD_ASTORE 58 /* op1 = local variable */
345 #define JAVA_ISTORE_0 59
346 #define ICMD_IF_LEQ 59 /* op1 = target JavaVM pc, val.l */
348 #define JAVA_ISTORE_1 60
349 #define ICMD_IF_LNE 60 /* op1 = target JavaVM pc, val.l */
351 #define JAVA_ISTORE_2 61
352 #define ICMD_IF_LLT 61 /* op1 = target JavaVM pc, val.l */
354 #define JAVA_ISTORE_3 62
355 #define ICMD_IF_LGE 62 /* op1 = target JavaVM pc, val.l */
357 #define JAVA_LSTORE_0 63
358 #define ICMD_IF_LGT 63 /* op1 = target JavaVM pc, val.l */
360 #define JAVA_LSTORE_1 64
361 #define ICMD_IF_LLE 64 /* op1 = target JavaVM pc, val.l */
363 #define JAVA_LSTORE_2 65
364 #define ICMD_IF_LCMPEQ 65 /* op1 = target JavaVM pc */
366 #define JAVA_LSTORE_3 66
367 #define ICMD_IF_LCMPNE 66 /* op1 = target JavaVM pc */
369 #define JAVA_FSTORE_0 67
370 #define ICMD_IF_LCMPLT 67 /* op1 = target JavaVM pc */
372 #define JAVA_FSTORE_1 68
373 #define ICMD_IF_LCMPGE 68 /* op1 = target JavaVM pc */
375 #define JAVA_FSTORE_2 69
376 #define ICMD_IF_LCMPGT 69 /* op1 = target JavaVM pc */
378 #define JAVA_FSTORE_3 70
379 #define ICMD_IF_LCMPLE 70 /* op1 = target JavaVM pc */
381 #define JAVA_DSTORE_0 71
383 #define JAVA_DSTORE_1 72
385 #define JAVA_DSTORE_2 73
387 #define JAVA_DSTORE_3 74
389 #define JAVA_ASTORE_0 75
391 #define JAVA_ASTORE_1 76
393 #define JAVA_ASTORE_2 77
395 #define JAVA_ASTORE_3 78
397 #define JAVA_IASTORE 79
398 #define ICMD_IASTORE 79
400 #define JAVA_LASTORE 80
401 #define ICMD_LASTORE 80
403 #define JAVA_FASTORE 81
404 #define ICMD_FASTORE 81
406 #define JAVA_DASTORE 82
407 #define ICMD_DASTORE 82
409 #define JAVA_AASTORE 83
410 #define ICMD_AASTORE 83
412 #define JAVA_BASTORE 84
413 #define ICMD_BASTORE 84
415 #define JAVA_CASTORE 85
416 #define ICMD_CASTORE 85
418 #define JAVA_SASTORE 86
419 #define ICMD_SASTORE 86
430 #define JAVA_DUP_X1 90
431 #define ICMD_DUP_X1 90
433 #define JAVA_DUP_X2 91
434 #define ICMD_DUP_X2 91
439 #define JAVA_DUP2_X1 93
440 #define ICMD_DUP2_X1 93
442 #define JAVA_DUP2_X2 94
443 #define ICMD_DUP2_X2 94
460 #define JAVA_ISUB 100
461 #define ICMD_ISUB 100
463 #define JAVA_LSUB 101
464 #define ICMD_LSUB 101
466 #define JAVA_FSUB 102
467 #define ICMD_FSUB 102
469 #define JAVA_DSUB 103
470 #define ICMD_DSUB 103
472 #define JAVA_IMUL 104
473 #define ICMD_IMUL 104
475 #define JAVA_LMUL 105
476 #define ICMD_LMUL 105
478 #define JAVA_FMUL 106
479 #define ICMD_FMUL 106
481 #define JAVA_DMUL 107
482 #define ICMD_DMUL 107
484 #define JAVA_IDIV 108
485 #define ICMD_IDIV 108
487 #define JAVA_LDIV 109
488 #define ICMD_LDIV 109
490 #define JAVA_FDIV 110
491 #define ICMD_FDIV 110
493 #define JAVA_DDIV 111
494 #define ICMD_DDIV 111
496 #define JAVA_IREM 112
497 #define ICMD_IREM 112
499 #define JAVA_LREM 113
500 #define ICMD_LREM 113
502 #define JAVA_FREM 114
503 #define ICMD_FREM 114
505 #define JAVA_DREM 115
506 #define ICMD_DREM 115
508 #define JAVA_INEG 116
509 #define ICMD_INEG 116
511 #define JAVA_LNEG 117
512 #define ICMD_LNEG 117
514 #define JAVA_FNEG 118
515 #define ICMD_FNEG 118
517 #define JAVA_DNEG 119
518 #define ICMD_DNEG 119
520 #define JAVA_ISHL 120
521 #define ICMD_ISHL 120
523 #define JAVA_LSHL 121
524 #define ICMD_LSHL 121
526 #define JAVA_ISHR 122
527 #define ICMD_ISHR 122
529 #define JAVA_LSHR 123
530 #define ICMD_LSHR 123
532 #define JAVA_IUSHR 124
533 #define ICMD_IUSHR 124
535 #define JAVA_LUSHR 125
536 #define ICMD_LUSHR 125
538 #define JAVA_IAND 126
539 #define ICMD_IAND 126
541 #define JAVA_LAND 127
542 #define ICMD_LAND 127
550 #define JAVA_IXOR 130
551 #define ICMD_IXOR 130
553 #define JAVA_LXOR 131
554 #define ICMD_LXOR 131
556 #define JAVA_IINC 132
557 #define ICMD_IINC 132 /* op1 = local variable, val.i = constant */
595 #define JAVA_INT2BYTE 145
596 #define ICMD_INT2BYTE 145
598 #define JAVA_INT2CHAR 146
599 #define ICMD_INT2CHAR 146
601 #define JAVA_INT2SHORT 147
602 #define ICMD_INT2SHORT 147
604 #define JAVA_LCMP 148
605 #define ICMD_LCMP 148
607 #define JAVA_FCMPL 149
608 #define ICMD_FCMPL 149
610 #define JAVA_FCMPG 150
611 #define ICMD_FCMPG 150
613 #define JAVA_DCMPL 151
614 #define ICMD_DCMPL 151
616 #define JAVA_DCMPG 152
617 #define ICMD_DCMPG 152
619 #define JAVA_IFEQ 153
620 #define ICMD_IFEQ 153 /* op1 = target JavaVM pc, val.i */
622 #define JAVA_IFNE 154
623 #define ICMD_IFNE 154 /* op1 = target JavaVM pc, val.i */
625 #define JAVA_IFLT 155
626 #define ICMD_IFLT 155 /* op1 = target JavaVM pc, val.i */
628 #define JAVA_IFGE 156
629 #define ICMD_IFGE 156 /* op1 = target JavaVM pc, val.i */
631 #define JAVA_IFGT 157
632 #define ICMD_IFGT 157 /* op1 = target JavaVM pc, val.i */
634 #define JAVA_IFLE 158
635 #define ICMD_IFLE 158 /* op1 = target JavaVM pc, val.i */
637 #define JAVA_IF_ICMPEQ 159
638 #define ICMD_IF_ICMPEQ 159 /* op1 = target JavaVM pc */
640 #define JAVA_IF_ICMPNE 160
641 #define ICMD_IF_ICMPNE 160 /* op1 = target JavaVM pc */
643 #define JAVA_IF_ICMPLT 161
644 #define ICMD_IF_ICMPLT 161 /* op1 = target JavaVM pc */
646 #define JAVA_IF_ICMPGE 162
647 #define ICMD_IF_ICMPGE 162 /* op1 = target JavaVM pc */
649 #define JAVA_IF_ICMPGT 163
650 #define ICMD_IF_ICMPGT 163 /* op1 = target JavaVM pc */
652 #define JAVA_IF_ICMPLE 164
653 #define ICMD_IF_ICMPLE 164 /* op1 = target JavaVM pc */
655 #define JAVA_IF_ACMPEQ 165
656 #define ICMD_IF_ACMPEQ 165 /* op1 = target JavaVM pc */
658 #define JAVA_IF_ACMPNE 166
659 #define ICMD_IF_ACMPNE 166 /* op1 = target JavaVM pc */
661 #define JAVA_GOTO 167
662 #define ICMD_GOTO 167 /* op1 = target JavaVM pc */
665 #define ICMD_JSR 168 /* op1 = target JavaVM pc */
668 #define ICMD_RET 169 /* op1 = local variable */
670 #define JAVA_TABLESWITCH 170
671 #define ICMD_TABLESWITCH 170 /* val.a = pointer to s4 table */
672 /* length must be computed */
673 #define JAVA_LOOKUPSWITCH 171
674 #define ICMD_LOOKUPSWITCH 171 /* val.a = pointer to s4 table */
675 /* length must be computed */
676 #define JAVA_IRETURN 172
677 #define ICMD_IRETURN 172
679 #define JAVA_LRETURN 173
680 #define ICMD_LRETURN 173
682 #define JAVA_FRETURN 174
683 #define ICMD_FRETURN 174
685 #define JAVA_DRETURN 175
686 #define ICMD_DRETURN 175
688 #define JAVA_ARETURN 176
689 #define ICMD_ARETURN 176
691 #define JAVA_RETURN 177
692 #define ICMD_RETURN 177
694 #define JAVA_GETSTATIC 178
695 #define ICMD_GETSTATIC 178 /* op1 = type, val.a = field address */
697 #define JAVA_PUTSTATIC 179
698 #define ICMD_PUTSTATIC 179 /* op1 = type, val.a = field address */
700 #define JAVA_GETFIELD 180
701 #define ICMD_GETFIELD 180 /* op1 = type, val.i = field offset */
703 #define JAVA_PUTFIELD 181
704 #define ICMD_PUTFIELD 181 /* op1 = type, val.i = field offset */
706 #define JAVA_INVOKEVIRTUAL 182
707 #define ICMD_INVOKEVIRTUAL 182 /* val.a = method info pointer */
709 #define JAVA_INVOKESPECIAL 183
710 #define ICMD_INVOKESPECIAL 183 /* val.a = method info pointer */
712 #define JAVA_INVOKESTATIC 184
713 #define ICMD_INVOKESTATIC 184 /* val.a = method info pointer */
715 #define JAVA_INVOKEINTERFACE 185
716 #define ICMD_INVOKEINTERFACE 185 /* val.a = method info pointer */
718 #define ICMD_CHECKASIZE 186 /* */
721 #define ICMD_NEW 187 /* op1 = 1, val.a = class pointer */
723 #define JAVA_NEWARRAY 188
724 #define ICMD_NEWARRAY 188 /* op1 = basic type */
726 #define JAVA_ANEWARRAY 189
727 #define ICMD_ANEWARRAY 189 /* op1 = 0, val.a = array pointer */
728 /* op1 = 1, val.a = class pointer */
729 #define JAVA_ARRAYLENGTH 190
730 #define ICMD_ARRAYLENGTH 190
732 #define JAVA_ATHROW 191
733 #define ICMD_ATHROW 191
735 #define JAVA_CHECKCAST 192
736 #define ICMD_CHECKCAST 192 /* op1 = 0, val.a = array pointer */
737 /* op1 = 1, val.a = class pointer */
738 #define JAVA_INSTANCEOF 193
739 #define ICMD_INSTANCEOF 193 /* op1 = 0, val.a = array pointer */
740 /* op1 = 1, val.a = class pointer */
741 #define JAVA_MONITORENTER 194
742 #define ICMD_MONITORENTER 194
744 #define JAVA_MONITOREXIT 195
745 #define ICMD_MONITOREXIT 195
747 #define JAVA_WIDE 196
749 #define JAVA_MULTIANEWARRAY 197
750 #define ICMD_MULTIANEWARRAY 197 /* op1 = dimension, val.a = array */
752 #define JAVA_IFNULL 198
753 #define ICMD_IFNULL 198 /* op1 = target JavaVM pc */
755 #define JAVA_IFNONNULL 199
756 #define ICMD_IFNONNULL 199 /* op1 = target JavaVM pc */
758 #define JAVA_GOTO_W 200
760 #define JAVA_JSR_W 201
762 #define JAVA_BREAKPOINT 202
764 #define ICMD_CHECKEXCEPTION 203 /* check for an exception */
766 #define ICMD_IASTORECONST 204
768 #define ICMD_LASTORECONST 205
770 #define ICMD_FASTORECONST 206
772 #define ICMD_DASTORECONST 207
774 #define ICMD_AASTORECONST 208
776 #define ICMD_BASTORECONST 209
778 #define ICMD_CASTORECONST 210
780 #define ICMD_SASTORECONST 211
782 #define ICMD_BUILTIN3 253 /* internal opcode */
783 #define ICMD_BUILTIN2 254 /* internal opcode */
784 #define ICMD_BUILTIN1 255 /* internal opcode */
785 #define ICMD_READONLY_ARG 1024 /* used for inlining, opcodes 1024-1028 are used */
786 #define ICMD_CLEAR_ARGREN 1029 /* indicates the start of a new inlined method argument renaming must be reset */
789 /******************* description of JavaVM instructions ***********************/
791 #if defined(USEBUILTINTABLE)
793 builtin_descriptor *find_builtin(int opcode);
795 #endif /* USEBUILTINTABLE */
798 /***************************** register types *********************************/
800 #define REG_RES 0 /* reserved register for OS or code generator */
801 #define REG_RET 1 /* return value register */
802 #define REG_EXC 2 /* exception value register */
803 #define REG_SAV 3 /* (callee) saved register */
804 #define REG_TMP 4 /* scratch temporary register (caller saved) */
805 #define REG_ARG 5 /* argument register (caller saved) */
807 #define REG_END -1 /* last entry in tables */
809 #define PARAMMODE_NUMBERED 0
810 #define PARAMMODE_STUFFED 1
813 /***************************** register info block ****************************/
815 extern int stackreq[256];
818 #if defined(__I386__)
819 extern bool method_uses_ecx;
820 extern bool method_uses_edx;
824 /* function prototypes */
826 methodptr jit_compile(methodinfo *m); /* compile a method with jit compiler */
828 void jit_init(); /* compiler initialisation */
829 void jit_close(); /* compiler finalisation */
831 void compile_all_class_methods(classinfo *c);
833 u1 *createcompilerstub(methodinfo *m);
834 u1 *createnativestub(functionptr f, methodinfo *m);
836 void removecompilerstub(u1 *stub);
837 void removenativestub(u1 *stub);
843 * These are local overrides for various environment variables in Emacs.
844 * Please do not remove this and leave it at the end of the file, where
845 * Emacs will automagically detect them.
846 * ---------------------------------------------------------------------
849 * indent-tabs-mode: t