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* mini-s390[x].c (is_regsize_var): Support PTR/FNPTR too.
[mono.git] / mono / mini / mini-s390.c
blob26df8633288abb57e0517a74871b6e5815fc8151
1 /*------------------------------------------------------------------*/
2 /* */
3 /* Name - mini-s390.c */
4 /* */
5 /* Function - S/390 backend for the Mono code generator. */
6 /* */
7 /* Name - Neale Ferguson (Neale.Ferguson@SoftwareAG-usa.com) */
8 /* */
9 /* Date - January, 2004 */
10 /* */
11 /* Derivation - From mini-x86 & mini-ppc by - */
12 /* Paolo Molaro (lupus@ximian.com) */
13 /* Dietmar Maurer (dietmar@ximian.com) */
14 /* */
15 /*------------------------------------------------------------------*/
16
17 /*------------------------------------------------------------------*/
18 /* D e f i n e s */
19 /*------------------------------------------------------------------*/
20
21 #define NOT_IMPLEMENTED(x) \
22 g_error ("FIXME: %s is not yet implemented.", x);
23
24 #define EMIT_COND_BRANCH(ins,cond) \
25 { \
26 if (ins->flags & MONO_INST_BRLABEL) { \
27 if (ins->inst_i0->inst_c0) { \
28 int displace; \
29 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
30 if (s390_is_imm16(displace)) { \
31 s390_brc (code, cond, displace); \
32 } else { \
33 s390_jcl (code, cond, displace); \
34 } \
35 } else { \
36 mono_add_patch_info (cfg, code - cfg->native_code, \
37 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
38 s390_jcl (code, cond, 0); \
39 } \
40 } else { \
41 if (ins->inst_true_bb->native_offset) { \
42 int displace; \
43 displace = ((cfg->native_code + \
44 ins->inst_true_bb->native_offset) - code) / 2; \
45 if (s390_is_imm16(displace)) { \
46 s390_brc (code, cond, displace); \
47 } else { \
48 s390_jcl (code, cond, displace); \
49 } \
50 } else { \
51 mono_add_patch_info (cfg, code - cfg->native_code, \
52 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
53 s390_jcl (code, cond, 0); \
54 } \
55 } \
56 }
57
58 #define EMIT_UNCOND_BRANCH(ins) \
59 { \
60 if (ins->flags & MONO_INST_BRLABEL) { \
61 if (ins->inst_i0->inst_c0) { \
62 int displace; \
63 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
64 if (s390_is_imm16(displace)) { \
65 s390_brc (code, S390_CC_UN, displace); \
66 } else { \
67 s390_jcl (code, S390_CC_UN, displace); \
68 } \
69 } else { \
70 mono_add_patch_info (cfg, code - cfg->native_code, \
71 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
72 s390_jcl (code, S390_CC_UN, 0); \
73 } \
74 } else { \
75 if (ins->inst_target_bb->native_offset) { \
76 int displace; \
77 displace = ((cfg->native_code + \
78 ins->inst_target_bb->native_offset) - code) / 2; \
79 if (s390_is_imm16(displace)) { \
80 s390_brc (code, S390_CC_UN, displace); \
81 } else { \
82 s390_jcl (code, S390_CC_UN, displace); \
83 } \
84 } else { \
85 mono_add_patch_info (cfg, code - cfg->native_code, \
86 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
87 s390_jcl (code, S390_CC_UN, 0); \
88 } \
89 } \
90 }
91
92 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
93 do { \
94 mono_add_patch_info (cfg, code - cfg->native_code, \
95 MONO_PATCH_INFO_EXC, exc_name); \
96 s390_jcl (code, cond, 0); \
97 } while (0);
98
99 #define CHECK_SRCDST_COM \
100 if (ins->dreg == ins->sreg2) { \
101 src2 = ins->sreg1; \
102 } else { \
103 src2 = ins->sreg2; \
104 if (ins->dreg != ins->sreg1) { \
105 s390_lr (code, ins->dreg, ins->sreg1); \
106 } \
107 }
108
109 #define CHECK_SRCDST_NCOM \
110 if (ins->dreg == ins->sreg2) { \
111 src2 = s390_r13; \
112 s390_lr (code, s390_r13, ins->sreg2); \
113 } else { \
114 src2 = ins->sreg2; \
115 } \
116 if (ins->dreg != ins->sreg1) { \
117 s390_lr (code, ins->dreg, ins->sreg1); \
118 }
119
120 #define CHECK_SRCDST_COM_F \
121 if (ins->dreg == ins->sreg2) { \
122 src2 = ins->sreg1; \
123 } else { \
124 src2 = ins->sreg2; \
125 if (ins->dreg != ins->sreg1) { \
126 s390_ldr (code, ins->dreg, ins->sreg1); \
127 } \
128 }
129
130 #define CHECK_SRCDST_NCOM_F \
131 if (ins->dreg == ins->sreg2) { \
132 src2 = s390_f15; \
133 s390_ldr (code, s390_r13, ins->sreg2); \
134 } else { \
135 src2 = ins->sreg2; \
136 } \
137 if (ins->dreg != ins->sreg1) { \
138 s390_ldr (code, ins->dreg, ins->sreg1); \
139 }
140
141 #undef DEBUG
142 #define DEBUG(a) if (cfg->verbose_level > 1) a
143
144 #define MAX_EXC 16
145
146 #define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
147
148 #define MAX (a, b) ((a) > (b) ? (a) : (b))
149
150 /*========================= End of Defines =========================*/
151
152 /*------------------------------------------------------------------*/
153 /* I n c l u d e s */
154 /*------------------------------------------------------------------*/
155
156 #include "mini.h"
157 #include <string.h>
158
159 #include <mono/metadata/appdomain.h>
160 #include <mono/metadata/debug-helpers.h>
161 #include <mono/metadata/profiler-private.h>
162 #include <mono/utils/mono-math.h>
163
164 #include "mini-s390.h"
165 #include "inssel.h"
166 #include "cpu-s390.h"
167
168 /*========================= End of Includes ========================*/
169
170 /*------------------------------------------------------------------*/
171 /* T y p e d e f s */
172 /*------------------------------------------------------------------*/
173
174 typedef struct {
175 guint stack_size,
176 local_size,
177 code_size,
178 parm_size,
179 offset,
180 offStruct,
181 retStruct;
182 } size_data;
183
184 /*------------------------------------------------------------------*/
185 /* Used by the instrument_emit_epilog */
186 /*------------------------------------------------------------------*/
187
188 enum {
189 SAVE_NONE,
190 SAVE_STRUCT,
191 SAVE_ONE,
192 SAVE_TWO,
193 SAVE_R4,
194 SAVE_R8
195 };
196
197 typedef struct InstList InstList;
198
199 struct InstList {
200 InstList *prev;
201 InstList *next;
202 MonoInst *data;
203 };
204
205 enum {
206 RegTypeGeneral,
207 RegTypeBase,
208 RegTypeFP,
209 RegTypeStructByVal,
210 RegTypeStructByAddr
211 };
212
213 typedef struct {
214 gint32 offset; /* offset from caller's stack */
215 gint32 offparm; /* offset from callee's stack */
216 guint16 vtsize; /* in param area */
217 guint8 reg;
218 guint8 regtype; /* See RegType* */
219 guint32 size; /* Size of structure used by RegTypeStructByVal */
220 } ArgInfo;
221
222 typedef struct {
223 int nargs;
224 int lastgr;
225 guint32 stack_usage;
226 guint32 struct_ret;
227 ArgInfo ret;
228 ArgInfo sigCookie;
229 ArgInfo args [1];
230 } CallInfo;
231
232 typedef struct {
233 gint32 gr[5]; /* R2-R6 */
234 gdouble fp[3]; /* F0-F2 */
235 } __attribute__ ((packed)) RegParm;
236
237 /*========================= End of Typedefs ========================*/
238
239 /*------------------------------------------------------------------*/
240 /* P r o t o t y p e s */
241 /*------------------------------------------------------------------*/
242
243 static void indent (int);
244 static guint8 * backUpStackPtr(MonoCompile *, guint8 *, gint);
245 static void decodeParm (MonoType *, void *, int);
246 static void enter_method (MonoMethod *, RegParm *, char *);
247 static void leave_method (MonoMethod *, ...);
248 static gboolean is_regsize_var (MonoType *);
249 static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
250 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
251 static inline void add_float (guint *, size_data *, ArgInfo *);
252 static CallInfo * calculate_sizes (MonoMethodSignature *, size_data *, gboolean);
253 static void peephole_pass (MonoCompile *, MonoBasicBlock *);
254 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
255 static void mono_arch_break(void);
256 gpointer mono_arch_get_lmf_addr (void);
257 static guint8 * emit_load_volatile_registers(guint8 *, MonoCompile *);
258 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *, int);
259
260 /*========================= End of Prototypes ======================*/
261
262 /*------------------------------------------------------------------*/
263 /* G l o b a l V a r i a b l e s */
264 /*------------------------------------------------------------------*/
265
266 int mono_exc_esp_offset = 0;
267
268 static int indent_level = 0;
269
270 static const char*const * ins_spec = s390_cpu_desc;
271
272 static gboolean tls_offset_inited = FALSE;
273
274 static int appdomain_tls_offset = -1,
275 lmf_tls_offset = -1,
276 thread_tls_offset = -1;
277
278 pthread_key_t lmf_addr_key;
279
280 gboolean lmf_addr_key_inited = FALSE;
281
282 #if 0
283
284 extern __thread MonoDomain *tls_appdomain;
285 extern __thread MonoThread *tls_current_object;
286 extern __thread gpointer mono_lmf_addr;
287
288 #endif
289
290 /*====================== End of Global Variables ===================*/
291
292 /*------------------------------------------------------------------*/
293 /* */
294 /* Name - mono_arch_regname */
295 /* */
296 /* Function - Returns the name of the register specified by */
297 /* the input parameter. */
298 /* */
299 /*------------------------------------------------------------------*/
300
301 const char*
302 mono_arch_regname (int reg) {
303 static const char * rnames[] = {
304 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
305 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
306 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
307 "s390_r15"
308 };
309
310 if (reg >= 0 && reg < 16)
311 return rnames [reg];
312 else
313 return "unknown";
314 }
315
316 /*========================= End of Function ========================*/
317
318 /*------------------------------------------------------------------*/
319 /* */
320 /* Name - mono_arch_fregname */
321 /* */
322 /* Function - Returns the name of the register specified by */
323 /* the input parameter. */
324 /* */
325 /*------------------------------------------------------------------*/
326
327 const char*
328 mono_arch_fregname (int reg) {
329 static const char * rnames[] = {
330 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
331 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
332 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
333 "s390_f15"
334 };
335
336 if (reg >= 0 && reg < 16)
337 return rnames [reg];
338 else
339 return "unknown";
340 }
341
342 /*========================= End of Function ========================*/
343
344 /*------------------------------------------------------------------*/
345 /* */
346 /* Name - arch_get_argument_info */
347 /* */
348 /* Function - Gathers information on parameters such as size, */
349 /* alignment, and padding. arg_info should be large */
350 /* enough to hold param_count + 1 entries. */
351 /* */
352 /* Parameters - @csig - Method signature */
353 /* @param_count - No. of parameters to consider */
354 /* @arg_info - An array to store the result info */
355 /* */
356 /* Returns - Size of the activation frame */
357 /* */
358 /*------------------------------------------------------------------*/
359
360 int
361 mono_arch_get_argument_info (MonoMethodSignature *csig,
362 int param_count,
363 MonoJitArgumentInfo *arg_info)
364 {
365 int k, frame_size = 0;
366 int size, align, pad;
367 int offset = 8;
368
369 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
370 frame_size += sizeof (gpointer);
371 offset += 4;
372 }
373
374 arg_info [0].offset = offset;
375
376 if (csig->hasthis) {
377 frame_size += sizeof (gpointer);
378 offset += 4;
379 }
380
381 arg_info [0].size = frame_size;
382
383 for (k = 0; k < param_count; k++) {
384
385 if (csig->pinvoke)
386 size = mono_type_native_stack_size (csig->params [k], &align);
387 else
388 size = mono_type_stack_size (csig->params [k], &align);
389
390 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
391 arg_info [k].pad = pad;
392 frame_size += size;
393 arg_info [k + 1].pad = 0;
394 arg_info [k + 1].size = size;
395 offset += pad;
396 arg_info [k + 1].offset = offset;
397 offset += size;
398 }
399
400 align = MONO_ARCH_FRAME_ALIGNMENT;
401 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
402 arg_info [k].pad = pad;
403
404 return frame_size;
405 }
406
407 /*========================= End of Function ========================*/
408
409 /*------------------------------------------------------------------*/
410 /* */
411 /* Name - retFitsInReg. */
412 /* */
413 /* Function - Determines if a value can be returned in one or */
414 /* two registers. */
415 /* */
416 /*------------------------------------------------------------------*/
417
418 static inline gboolean
419 retFitsInReg(guint32 size)
420 {
421 switch (size) {
422 case 0:
423 case 1:
424 case 2:
425 case 4:
426 case 8:
427 return (TRUE);
428 break;
429 default:
430 return (FALSE);
431 }
432 }
433
434 /*========================= End of Function ========================*/
435
436 /*------------------------------------------------------------------*/
437 /* */
438 /* Name - backStackPtr. */
439 /* */
440 /* Function - Restore Stack Pointer to previous frame. */
441 /* */
442 /*------------------------------------------------------------------*/
443
444 static inline guint8 *
445 backUpStackPtr(MonoCompile *cfg, guint8 *code, gint framePtr)
446 {
447 int stackSize = cfg->stack_usage;
448
449 if (s390_is_uimm16 (cfg->stack_usage)) {
450 s390_ahi (code, framePtr, cfg->stack_usage);
451 } else {
452 while (stackSize > 32767) {
453 s390_ahi (code, framePtr, 32767);
454 stackSize -= 32767;
455 }
456 s390_ahi (code, framePtr, stackSize);
457 }
458 return (code);
459 }
460
461 /*========================= End of Function ========================*/
462
463 /*------------------------------------------------------------------*/
464 /* */
465 /* Name - indent */
466 /* */
467 /* Function - Perform nice indenting to current level */
468 /* */
469 /*------------------------------------------------------------------*/
470
471 static void
472 indent (int diff) {
473 int v;
474 if (diff < 0)
475 indent_level += diff;
476 v = indent_level;
477 printf("[%3d] ",v);
478 while (v-- > 0) {
479 printf (". ");
480 }
481 if (diff > 0)
482 indent_level += diff;
483 }
484
485 /*========================= End of Function ========================*/
486
487 /*------------------------------------------------------------------*/
488 /* */
489 /* Name - decodeParm */
490 /* */
491 /* Function - Decode a parameter for the trace. */
492 /* */
493 /*------------------------------------------------------------------*/
494
495 static void
496 decodeParm(MonoType *type, void *curParm, int size)
497 {
498 guint32 simpleType;
499
500 if (type->byref) {
501 printf("[BYREF:%p], ", *((char **) curParm));
502 } else {
503 simpleType = mono_type_get_underlying_type(type)->type;
504 enum_parmtype:
505 switch (simpleType) {
506 case MONO_TYPE_I :
507 printf ("[INTPTR:%p], ", *((int **) curParm));
508 break;
509 case MONO_TYPE_U :
510 printf ("[UINTPTR:%p], ", *((int **) curParm));
511 break;
512 case MONO_TYPE_BOOLEAN :
513 printf ("[BOOL:%d], ", *((int *) curParm));
514 break;
515 case MONO_TYPE_CHAR :
516 printf ("[CHAR:%c], ", *((int *) curParm));
517 break;
518 case MONO_TYPE_I1 :
519 printf ("[INT1:%d], ", *((int *) curParm));
520 break;
521 case MONO_TYPE_I2 :
522 printf ("[INT2:%d], ", *((int *) curParm));
523 break;
524 case MONO_TYPE_I4 :
525 printf ("[INT4:%d], ", *((int *) curParm));
526 break;
527 case MONO_TYPE_U1 :
528 printf ("[UINT1:%u], ", *((unsigned int *) curParm));
529 break;
530 case MONO_TYPE_U2 :
531 printf ("[UINT2:%u], ", *((guint16 *) curParm));
532 break;
533 case MONO_TYPE_U4 :
534 printf ("[UINT4:%u], ", *((guint32 *) curParm));
535 break;
536 case MONO_TYPE_U8 :
537 printf ("[UINT8:%llu], ", *((guint64 *) curParm));
538 break;
539 case MONO_TYPE_STRING : {
540 MonoString *s = *((MonoString **) curParm);
541 if (s) {
542 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
543 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
544 } else {
545 printf("[STRING:null], ");
546 }
547 break;
548 }
549 case MONO_TYPE_CLASS :
550 case MONO_TYPE_OBJECT : {
551 MonoObject *obj = *((MonoObject **) curParm);
552 MonoClass *class;
553 if ((obj) && (obj->vtable)) {
554 printf("[CLASS/OBJ:");
555 class = obj->vtable->klass;
556 printf("%p [%p] ",obj,curParm);
557 // if (class == mono_defaults.string_class) {
558 // printf("[STRING:%p:%s]",
559 // *obj, mono_string_to_utf8 (obj));
560 // } else if (class == mono_defaults.int32_class) {
561 // printf("[INT32:%p:%d]",
562 // obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
563 // } else
564 // printf("[%s.%s:%p]",
565 // class->name_space, class->name, obj);
566 printf("], ");
567 } else {
568 printf("[OBJECT:null], ");
569 }
570 break;
571 }
572 case MONO_TYPE_PTR :
573 printf("[PTR:%p], ", *((gpointer **) (curParm)));
574 break;
575 case MONO_TYPE_FNPTR :
576 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
577 break;
578 case MONO_TYPE_ARRAY :
579 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
580 break;
581 case MONO_TYPE_SZARRAY :
582 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
583 break;
584 case MONO_TYPE_I8 :
585 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
586 break;
587 case MONO_TYPE_R4 :
588 printf("[FLOAT4:%g], ", *((double *) (curParm)));
589 break;
590 case MONO_TYPE_R8 :
591 printf("[FLOAT8:%g], ", *((double *) (curParm)));
592 break;
593 case MONO_TYPE_VALUETYPE : {
594 int i;
595 MonoMarshalType *info;
596
597 if (type->data.klass->enumtype) {
598 simpleType = type->data.klass->enum_basetype->type;
599 printf("{VALUETYPE} - ");
600 goto enum_parmtype;
601 }
602
603 info = mono_marshal_load_type_info (type->data.klass);
604
605 if ((info->native_size == sizeof(float)) &&
606 (info->num_fields == 1) &&
607 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
608 printf("[FLOAT4:%f], ", *((float *) (curParm)));
609 break;
610 }
611
612 if ((info->native_size == sizeof(double)) &&
613 (info->num_fields == 1) &&
614 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
615 printf("[FLOAT8:%g], ", *((double *) (curParm)));
616 break;
617 }
618
619 printf("[VALUETYPE:");
620 for (i = 0; i < size; i++)
621 printf("%02x,", *((guint8 *)curParm+i));
622 printf("]");
623 break;
624 }
625 case MONO_TYPE_TYPEDBYREF: {
626 int i;
627 printf("[TYPEDBYREF:");
628 for (i = 0; i < size; i++)
629 printf("%02x,", *((guint8 *)curParm+i));
630 printf("]");
631 break;
632 }
633 default :
634 printf("[?? - %d], ",simpleType);
635 }
636 }
637 }
638
639 /*========================= End of Function ========================*/
640
641 static int lc = 0;
642 /*------------------------------------------------------------------*/
643 /* */
644 /* Name - enter_method */
645 /* */
646 /* Function - Perform tracing of the entry to the current */
647 /* method. */
648 /* */
649 /*------------------------------------------------------------------*/
650
651 static void
652 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
653 {
654 int i, oParm = 0, iParm = 0;
655 MonoClass *class;
656 MonoObject *obj;
657 MonoMethodSignature *sig;
658 char *fname;
659 guint32 ip;
660 CallInfo *cinfo;
661 ArgInfo *ainfo;
662 size_data sz;
663 void *curParm;
664
665
666 lc++;
667 if (lc > 5000000) {
668 fseek(stdout, 0L, SEEK_SET);
669 lc = 0;
670 }
671 fname = mono_method_full_name (method, TRUE);
672 indent (1);
673 printf ("ENTER: %s(", fname);
674 g_free (fname);
675
676 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
677 printf (") ip: %p sp: %p - ", (gpointer) ip, sp);
678
679 if (rParm == NULL)
680 return;
681
682 sig = mono_method_signature (method);
683
684 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
685
686 if (cinfo->struct_ret) {
687 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
688 iParm = 1;
689 }
690
691 if (sig->hasthis) {
692 gpointer *this = (gpointer *) rParm->gr[iParm];
693 obj = (MonoObject *) this;
694 if (method->klass->valuetype) {
695 if (obj) {
696 printf("this:[value:%p:%08x], ",
697 this, *((guint32 *)(this+sizeof(MonoObject))));
698 } else
699 printf ("this:[NULL], ");
700 } else {
701 if (obj) {
702 // class = obj->vtable->klass;
703 // if (class == mono_defaults.string_class) {
704 // printf ("this:[STRING:%p:%s], ",
705 // obj, mono_string_to_utf8 ((MonoString *)obj));
706 // } else {
707 // printf ("this:%p[%s.%s], ",
708 // obj, class->name_space, class->name);
709 // }
710 printf("this:%p, ",obj);
711 } else
712 printf ("this:NULL, ");
713 }
714 oParm++;
715 }
716
717 for (i = 0; i < sig->param_count; ++i) {
718 ainfo = &cinfo->args[i + oParm];
719 switch (ainfo->regtype) {
720 case RegTypeGeneral :
721 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
722 break;
723 case RegTypeFP :
724 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
725 break;
726 case RegTypeBase :
727 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
728 break;
729 case RegTypeStructByVal :
730 if (ainfo->reg != STK_BASE)
731 curParm = &(rParm->gr[ainfo->reg-2]);
732 else
733 curParm = sp+ainfo->offset;
734
735 if (retFitsInReg (ainfo->vtsize))
736 decodeParm(sig->params[i],
737 curParm,
738 ainfo->size);
739 else
740 decodeParm(sig->params[i],
741 *((char **) curParm),
742 ainfo->vtsize);
743 break;
744 case RegTypeStructByAddr :
745 if (ainfo->reg != STK_BASE)
746 curParm = &(rParm->gr[ainfo->reg-2]);
747 else
748 curParm = sp+ainfo->offset;
749
750 decodeParm(sig->params[i],
751 *((char **) curParm),
752 ainfo->vtsize);
753 break;
754
755 default :
756 printf("???, ");
757 }
758 }
759 printf("\n");
760 g_free(cinfo);
761 }
762
763 /*========================= End of Function ========================*/
764
765 /*------------------------------------------------------------------*/
766 /* */
767 /* Name - leave_method */
768 /* */
769 /* Function - */
770 /* */
771 /*------------------------------------------------------------------*/
772
773 static void
774 leave_method (MonoMethod *method, ...)
775 {
776 MonoType *type;
777 char *fname;
778 guint32 ip;
779 va_list ap;
780
781 va_start(ap, method);
782
783 fname = mono_method_full_name (method, TRUE);
784 indent (-1);
785 printf ("LEAVE: %s", fname);
786 g_free (fname);
787
788 type = mono_method_signature (method)->ret;
789
790 handle_enum:
791 switch (type->type) {
792 case MONO_TYPE_VOID:
793 break;
794 case MONO_TYPE_BOOLEAN: {
795 int val = va_arg (ap, int);
796 if (val)
797 printf ("[TRUE:%d]", val);
798 else
799 printf ("[FALSE]");
800
801 break;
802 }
803 case MONO_TYPE_CHAR: {
804 int val = va_arg (ap, int);
805 printf ("[CHAR:%d]", val);
806 break;
807 }
808 case MONO_TYPE_I1: {
809 int val = va_arg (ap, int);
810 printf ("[INT1:%d]", val);
811 break;
812 }
813 case MONO_TYPE_U1: {
814 int val = va_arg (ap, int);
815 printf ("[UINT1:%d]", val);
816 break;
817 }
818 case MONO_TYPE_I2: {
819 int val = va_arg (ap, int);
820 printf ("[INT2:%d]", val);
821 break;
822 }
823 case MONO_TYPE_U2: {
824 int val = va_arg (ap, int);
825 printf ("[UINT2:%d]", val);
826 break;
827 }
828 case MONO_TYPE_I4: {
829 int val = va_arg (ap, int);
830 printf ("[INT4:%d]", val);
831 break;
832 }
833 case MONO_TYPE_U4: {
834 int val = va_arg (ap, int);
835 printf ("[UINT4:%d]", val);
836 break;
837 }
838 case MONO_TYPE_I: {
839 int val = va_arg (ap, int);
840 printf ("[INT:%d]", val);
841 printf("]");
842 break;
843 }
844 case MONO_TYPE_U: {
845 int val = va_arg (ap, int);
846 printf ("[UINT:%d]", val);
847 printf("]");
848 break;
849 }
850 case MONO_TYPE_STRING: {
851 MonoString *s = va_arg (ap, MonoString *);
852 ;
853 if (s) {
854 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
855 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
856 } else
857 printf ("[STRING:null], ");
858 break;
859 }
860 case MONO_TYPE_CLASS:
861 case MONO_TYPE_OBJECT: {
862 MonoObject *o = va_arg (ap, MonoObject *);
863
864 // if ((o) && (o->vtable)) {
865 // if (o->vtable->klass == mono_defaults.boolean_class) {
866 // printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
867 // } else if (o->vtable->klass == mono_defaults.int32_class) {
868 // printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
869 // } else if (o->vtable->klass == mono_defaults.int64_class) {
870 // printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
871 // } else
872 // printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
873 // } else
874 printf ("[OBJECT:%p]", o);
875
876 break;
877 }
878 case MONO_TYPE_PTR:
879 case MONO_TYPE_FNPTR:
880 case MONO_TYPE_ARRAY:
881 case MONO_TYPE_SZARRAY: {
882 gpointer p = va_arg (ap, gpointer);
883 printf ("[result=%p]", p);
884 break;
885 }
886 case MONO_TYPE_I8: {
887 gint64 l = va_arg (ap, gint64);
888 printf ("[LONG:%lld]", l);
889 break;
890 }
891 case MONO_TYPE_U8: {
892 guint64 l = va_arg (ap, guint64);
893 printf ("[ULONG:%llu]", l);
894 break;
895 }
896 case MONO_TYPE_R4: {
897 double f;
898 f = va_arg (ap, double);
899 printf ("[FLOAT4:%g]\n", f);
900 break;
901 }
902 case MONO_TYPE_R8: {
903 double f = va_arg (ap, double);
904 printf ("[FLOAT8:%g]\n", f);
905 break;
906 }
907 case MONO_TYPE_VALUETYPE: {
908 MonoMarshalType *info;
909 if (type->data.klass->enumtype) {
910 type = type->data.klass->enum_basetype;
911 goto handle_enum;
912 } else {
913 guint8 *p = va_arg (ap, gpointer);
914 int j, size, align;
915
916 info = mono_marshal_load_type_info (type->data.klass);
917
918 if ((info->native_size == sizeof(float)) &&
919 (info->num_fields == 1) &&
920 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
921 double f = va_arg (ap, double);
922 printf("[FLOAT4:%g]\n", (double) f);
923 break;
924 }
925
926 if ((info->native_size == sizeof(double)) &&
927 (info->num_fields == 1) &&
928 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
929 double f = va_arg (ap, double);
930 printf("[FLOAT8:%g]\n", f);
931 break;
932 }
933
934 size = mono_type_size (type, &align);
935 switch (size) {
936 case 1:
937 case 2:
938 case 4:
939 case 8:
940 printf ("[");
941 for (j = 0; p && j < size; j++)
942 printf ("%02x,", p [j]);
943 printf ("]\n");
944 break;
945 default:
946 printf ("[VALUERET]\n");
947 }
948 }
949 break;
950 }
951 case MONO_TYPE_TYPEDBYREF: {
952 guint8 *p = va_arg (ap, gpointer);
953 int j, size, align;
954 size = mono_type_size (type, &align);
955 switch (size) {
956 case 1:
957 case 2:
958 case 4:
959 case 8:
960 printf ("[");
961 for (j = 0; p && j < size; j++)
962 printf ("%02x,", p [j]);
963 printf ("]\n");
964 break;
965 default:
966 printf ("[TYPEDBYREF]\n");
967 }
968 }
969 break;
970 default:
971 printf ("(unknown return type %x)",
972 mono_method_signature (method)->ret->type);
973 }
974
975 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
976 printf (" ip: %p\n", (gpointer) ip);
977 }
978
979 /*========================= End of Function ========================*/
980
981 /*------------------------------------------------------------------*/
982 /* */
983 /* Name - mono_arch_cpu_init */
984 /* */
985 /* Function - Perform CPU specific initialization to execute */
986 /* managed code. */
987 /* */
988 /*------------------------------------------------------------------*/
989
990 void
991 mono_arch_cpu_init (void)
992 {
993 guint mode = 1;
994
995 /*--------------------------------------*/
996 /* Set default rounding mode for FP */
997 /*--------------------------------------*/
998 __asm__ ("SRNM\t%0\n\t"
999 : : "m" (mode));
1000 }
1001
1002 /*========================= End of Function ========================*/
1003
1004 /*------------------------------------------------------------------*/
1005 /* */
1006 /* Name - mono_arch_cpu_optimizazions */
1007 /* */
1008 /* Function - Returns the optimizations supported on this CPU */
1009 /* */
1010 /*------------------------------------------------------------------*/
1011
1012 guint32
1013 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1014 {
1015 guint32 opts = 0;
1016
1017 /*----------------------------------------------------------*/
1018 /* no s390-specific optimizations yet */
1019 /*----------------------------------------------------------*/
1020 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1021 // *exclude_mask = MONO_OPT_INLINE;
1022 return opts;
1023 }
1024
1025 /*========================= End of Function ========================*/
1026
1027 /*------------------------------------------------------------------*/
1028 /* */
1029 /* Name - */
1030 /* */
1031 /* Function - */
1032 /* */
1033 /*------------------------------------------------------------------*/
1034
1035 static gboolean
1036 is_regsize_var (MonoType *t) {
1037 if (t->byref)
1038 return TRUE;
1039 switch (mono_type_get_underlying_type (t)->type) {
1040 case MONO_TYPE_I4:
1041 case MONO_TYPE_U4:
1042 case MONO_TYPE_I:
1043 case MONO_TYPE_U:
1044 case MONO_TYPE_PTR:
1045 case MONO_TYPE_FNPTR:
1046 return TRUE;
1047 case MONO_TYPE_OBJECT:
1048 case MONO_TYPE_STRING:
1049 case MONO_TYPE_CLASS:
1050 case MONO_TYPE_SZARRAY:
1051 case MONO_TYPE_ARRAY:
1052 return FALSE;
1053 case MONO_TYPE_VALUETYPE:
1054 if (t->data.klass->enumtype)
1055 return is_regsize_var (t->data.klass->enum_basetype);
1056 return FALSE;
1057 }
1058 return FALSE;
1059 }
1060
1061 /*========================= End of Function ========================*/
1062
1063 /*------------------------------------------------------------------*/
1064 /* */
1065 /* Name - mono_arch_get_allocatable_int_vars */
1066 /* */
1067 /* Function - */
1068 /* */
1069 /*------------------------------------------------------------------*/
1070
1071 GList *
1072 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1073 {
1074 GList *vars = NULL;
1075 int i;
1076
1077 for (i = 0; i < cfg->num_varinfo; i++) {
1078 MonoInst *ins = cfg->varinfo [i];
1079 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1080
1081 /* unused vars */
1082 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1083 continue;
1084
1085 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1086 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1087 continue;
1088
1089 /* we can only allocate 32 bit values */
1090 if (is_regsize_var (ins->inst_vtype)) {
1091 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1092 g_assert (i == vmv->idx);
1093 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1094 }
1095 }
1096
1097 return vars;
1098 }
1099
1100 /*========================= End of Function ========================*/
1101
1102 /*------------------------------------------------------------------*/
1103 /* */
1104 /* Name - mono_arch_global_int_regs */
1105 /* */
1106 /* Function - Return a list of usable integer registers. */
1107 /* */
1108 /*------------------------------------------------------------------*/
1109
1110 GList *
1111 mono_arch_get_global_int_regs (MonoCompile *cfg)
1112 {
1113 GList *regs = NULL;
1114 MonoMethodHeader *header;
1115 int i, top = 13;
1116
1117 header = mono_method_get_header (cfg->method);
1118 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1119 cfg->frame_reg = s390_r11;
1120
1121 for (i = 8; i < top; ++i) {
1122 if (cfg->frame_reg != i)
1123 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1124 }
1125
1126 return regs;
1127 }
1128
1129 /*========================= End of Function ========================*/
1130
1131 /*------------------------------------------------------------------*/
1132 /* */
1133 /* Name - mono_arch_flush_icache */
1134 /* */
1135 /* Function - Flush the CPU icache. */
1136 /* */
1137 /*------------------------------------------------------------------*/
1138
1139 void
1140 mono_arch_flush_icache (guint8 *code, gint size)
1141 {
1142 }
1143
1144 /*========================= End of Function ========================*/
1145
1146 /*------------------------------------------------------------------*/
1147 /* */
1148 /* Name - add_general */
1149 /* */
1150 /* Function - Determine code and stack size incremements for a */
1151 /* parameter. */
1152 /* */
1153 /*------------------------------------------------------------------*/
1154
1155 static void inline
1156 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1157 {
1158 if (simple) {
1159 if (*gr > S390_LAST_ARG_REG) {
1160 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1161 ainfo->offset = sz->stack_size;
1162 ainfo->reg = STK_BASE;
1163 ainfo->regtype = RegTypeBase;
1164 sz->stack_size += sizeof(int);
1165 sz->local_size += sizeof(int);
1166 sz->offStruct += sizeof(int);
1167 sz->code_size += 12;
1168 } else {
1169 ainfo->reg = *gr;
1170 sz->code_size += 8;
1171 }
1172 } else {
1173 if (*gr > S390_LAST_ARG_REG - 1) {
1174 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1175 ainfo->offset = sz->stack_size;
1176 ainfo->reg = STK_BASE;
1177 ainfo->regtype = RegTypeBase;
1178 sz->stack_size += sizeof(long long);
1179 sz->local_size += sizeof(long long);
1180 sz->offStruct += sizeof(long long);
1181 sz->code_size += 10;
1182 } else {
1183 ainfo->reg = *gr;
1184 sz->code_size += 8;
1185 }
1186 (*gr) ++;
1187 }
1188 (*gr) ++;
1189 }
1190
1191 /*========================= End of Function ========================*/
1192
1193 /*------------------------------------------------------------------*/
1194 /* */
1195 /* Name - add_stackParm */
1196 /* */
1197 /* Function - Determine code and stack size incremements for a */
1198 /* parameter. */
1199 /* */
1200 /*------------------------------------------------------------------*/
1201
1202 static void inline
1203 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1204 {
1205 if (*gr > S390_LAST_ARG_REG) {
1206 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1207 ainfo->reg = STK_BASE;
1208 sz->parm_size += sizeof(gpointer);
1209 sz->offStruct += sizeof(gpointer);
1210 } else {
1211 ainfo->reg = *gr;
1212 }
1213 (*gr) ++;
1214 ainfo->offset = sz->stack_size;
1215 ainfo->offparm = sz->offset;
1216 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1217 ainfo->size = size;
1218 ainfo->regtype = RegTypeStructByAddr;
1219 ainfo->vtsize = size;
1220 sz->parm_size += size;
1221 }
1222
1223 /*========================= End of Function ========================*/
1224
1225 /*------------------------------------------------------------------*/
1226 /* */
1227 /* Name - add_float */
1228 /* */
1229 /* Function - Determine code and stack size incremements for a */
1230 /* float parameter. */
1231 /* */
1232 /*------------------------------------------------------------------*/
1233
1234 static void inline
1235 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1236 {
1237 if ((*fr) <= S390_LAST_FPARG_REG) {
1238 ainfo->regtype = RegTypeFP;
1239 ainfo->reg = *fr;
1240 sz->code_size += 4;
1241 (*fr) += 2;
1242 }
1243 else {
1244 ainfo->offset = sz->stack_size;
1245 ainfo->reg = STK_BASE;
1246 ainfo->regtype = RegTypeBase;
1247 sz->code_size += 4;
1248 sz->stack_size += ainfo->size;
1249 sz->local_size += ainfo->size;
1250 sz->offStruct += ainfo->size;
1251 }
1252 }
1253
1254 /*========================= End of Function ========================*/
1255
1256 /*------------------------------------------------------------------*/
1257 /* */
1258 /* Name - calculate_sizes */
1259 /* */
1260 /* Function - Determine the amount of space required for code */
1261 /* and stack. In addition determine starting points */
1262 /* for stack-based parameters, and area for struct- */
1263 /* ures being returned on the stack. */
1264 /* */
1265 /*------------------------------------------------------------------*/
1266
1267 static CallInfo *
1268 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1269 gboolean string_ctor)
1270 {
1271 guint i, fr, gr, size;
1272 int nParm = sig->hasthis + sig->param_count;
1273 guint32 simpletype, align;
1274 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1275
1276 fr = 0;
1277 gr = s390_r2;
1278 nParm = 0;
1279 cinfo->struct_ret = 0;
1280 sz->offset = 0;
1281 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1282 sz->retStruct = 0;
1283 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1284 sz->code_size = 0;
1285 sz->parm_size = 0;
1286 sz->local_size = 0;
1287
1288 /*----------------------------------------------------------*/
1289 /* We determine the size of the return code/stack in case we*/
1290 /* need to reserve a register to be used to address a stack */
1291 /* area that the callee will use. */
1292 /*----------------------------------------------------------*/
1293
1294 simpletype = mono_type_get_underlying_type (sig->ret)->type;
1295 enum_retvalue:
1296 switch (simpletype) {
1297 case MONO_TYPE_BOOLEAN:
1298 case MONO_TYPE_I1:
1299 case MONO_TYPE_U1:
1300 case MONO_TYPE_I2:
1301 case MONO_TYPE_U2:
1302 case MONO_TYPE_CHAR:
1303 case MONO_TYPE_I4:
1304 case MONO_TYPE_U4:
1305 case MONO_TYPE_I:
1306 case MONO_TYPE_U:
1307 case MONO_TYPE_CLASS:
1308 case MONO_TYPE_OBJECT:
1309 case MONO_TYPE_SZARRAY:
1310 case MONO_TYPE_ARRAY:
1311 case MONO_TYPE_PTR:
1312 case MONO_TYPE_FNPTR:
1313 case MONO_TYPE_STRING:
1314 cinfo->ret.reg = s390_r2;
1315 sz->code_size += 4;
1316 break;
1317 case MONO_TYPE_R4:
1318 case MONO_TYPE_R8:
1319 cinfo->ret.reg = s390_f0;
1320 sz->code_size += 4;
1321 break;
1322 case MONO_TYPE_I8:
1323 case MONO_TYPE_U8:
1324 cinfo->ret.reg = s390_r2;
1325 sz->code_size += 4;
1326 break;
1327 case MONO_TYPE_GENERICINST:
1328 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1329 cinfo->ret.reg = s390_r2;
1330 sz->code_size += 4;
1331 break;
1332 }
1333 /* Fall through */
1334 case MONO_TYPE_VALUETYPE: {
1335 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1336 if (sig->ret->data.klass->enumtype) {
1337 simpletype = sig->ret->data.klass->enum_basetype->type;
1338 goto enum_retvalue;
1339 }
1340 if (sig->pinvoke)
1341 size = mono_class_native_size (klass, &align);
1342 else
1343 size = mono_class_value_size (klass, &align);
1344
1345 cinfo->ret.reg = s390_r2;
1346 cinfo->struct_ret = 1;
1347 cinfo->ret.size = size;
1348 cinfo->ret.vtsize = size;
1349 gr++;
1350 break;
1351 }
1352 case MONO_TYPE_TYPEDBYREF:
1353 size = sizeof (MonoTypedRef);
1354 cinfo->ret.reg = s390_r2;
1355 cinfo->struct_ret = 1;
1356 cinfo->ret.size = size;
1357 cinfo->ret.vtsize = size;
1358 gr++;
1359 break;
1360 case MONO_TYPE_VOID:
1361 break;
1362 default:
1363 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1364 }
1365
1366 if (sig->hasthis) {
1367 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1368 cinfo->args[nParm].size = sizeof(gpointer);
1369 nParm++;
1370 }
1371
1372 /*----------------------------------------------------------*/
1373 /* We determine the size of the parameter code and stack */
1374 /* requirements by checking the types and sizes of the */
1375 /* parameters. */
1376 /*----------------------------------------------------------*/
1377
1378 for (i = 0; i < sig->param_count; ++i) {
1379 /*--------------------------------------------------*/
1380 /* Handle vararg type calls. All args are put on */
1381 /* the stack. */
1382 /*--------------------------------------------------*/
1383 if ((sig->call_convention == MONO_CALL_VARARG) &&
1384 (i == sig->sentinelpos)) {
1385 gr = S390_LAST_ARG_REG + 1;
1386 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1387 }
1388
1389 if (sig->params [i]->byref) {
1390 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1391 cinfo->args[nParm].size = sizeof(gpointer);
1392 nParm++;
1393 continue;
1394 }
1395
1396 simpletype = mono_type_get_underlying_type(sig->params [i])->type;
1397 switch (simpletype) {
1398 case MONO_TYPE_BOOLEAN:
1399 case MONO_TYPE_I1:
1400 case MONO_TYPE_U1:
1401 cinfo->args[nParm].size = sizeof(char);
1402 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1403 nParm++;
1404 break;
1405 case MONO_TYPE_I2:
1406 case MONO_TYPE_U2:
1407 case MONO_TYPE_CHAR:
1408 cinfo->args[nParm].size = sizeof(short);
1409 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1410 nParm++;
1411 break;
1412 case MONO_TYPE_I4:
1413 case MONO_TYPE_U4:
1414 cinfo->args[nParm].size = sizeof(int);
1415 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1416 nParm++;
1417 break;
1418 case MONO_TYPE_I:
1419 case MONO_TYPE_U:
1420 case MONO_TYPE_PTR:
1421 case MONO_TYPE_FNPTR:
1422 case MONO_TYPE_CLASS:
1423 case MONO_TYPE_OBJECT:
1424 case MONO_TYPE_STRING:
1425 case MONO_TYPE_SZARRAY:
1426 case MONO_TYPE_ARRAY:
1427 cinfo->args[nParm].size = sizeof(gpointer);
1428 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1429 nParm++;
1430 break;
1431 case MONO_TYPE_I8:
1432 case MONO_TYPE_U8:
1433 cinfo->args[nParm].size = sizeof(long long);
1434 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1435 nParm++;
1436 break;
1437 case MONO_TYPE_R4:
1438 cinfo->args[nParm].size = sizeof(float);
1439 add_float (&fr, sz, cinfo->args+nParm);
1440 nParm++;
1441 break;
1442 case MONO_TYPE_R8:
1443 cinfo->args[nParm].size = sizeof(double);
1444 add_float (&fr, sz, cinfo->args+nParm);
1445 nParm++;
1446 break;
1447 case MONO_TYPE_GENERICINST:
1448 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1449 cinfo->args[nParm].size = sizeof(gpointer);
1450 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1451 nParm++;
1452 break;
1453 }
1454 /* Fall through */
1455 case MONO_TYPE_VALUETYPE: {
1456 MonoMarshalType *info;
1457 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1458 if (sig->pinvoke)
1459 size = mono_class_native_size (klass, &align);
1460 else
1461 size = mono_class_value_size (klass, &align);
1462
1463 info = mono_marshal_load_type_info (klass);
1464
1465 if ((info->native_size == sizeof(float)) &&
1466 (info->num_fields == 1) &&
1467 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1468 cinfo->args[nParm].size = sizeof(float);
1469 add_float(&fr, sz, cinfo->args+nParm);
1470 break;
1471 }
1472
1473 if ((info->native_size == sizeof(double)) &&
1474 (info->num_fields == 1) &&
1475 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1476 cinfo->args[nParm].size = sizeof(double);
1477 add_float(&fr, sz, cinfo->args+nParm);
1478 break;
1479 }
1480
1481 cinfo->args[nParm].vtsize = 0;
1482 cinfo->args[nParm].size = 0;
1483
1484 switch (size) {
1485 /*----------------------------------*/
1486 /* On S/390, structures of size 1, */
1487 /* 2, 4, and 8 bytes are passed in */
1488 /* (a) register(s). */
1489 /*----------------------------------*/
1490 case 0:
1491 case 1:
1492 case 2:
1493 case 4:
1494 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1495 cinfo->args[nParm].size = size;
1496 cinfo->args[nParm].regtype = RegTypeStructByVal;
1497 nParm++;
1498 sz->local_size += sizeof(long);
1499 break;
1500 case 8:
1501 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1502 cinfo->args[nParm].size = sizeof(long long);
1503 cinfo->args[nParm].regtype = RegTypeStructByVal;
1504 nParm++;
1505 sz->local_size += sizeof(long);
1506 break;
1507 default:
1508 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1509 nParm++;
1510 }
1511 }
1512 break;
1513 case MONO_TYPE_TYPEDBYREF: {
1514 int size = sizeof (MonoTypedRef);
1515
1516 cinfo->args[nParm].vtsize = 0;
1517 cinfo->args[nParm].size = 0;
1518
1519 switch (size) {
1520 /*----------------------------------*/
1521 /* On S/390, structures of size 1, */
1522 /* 2, 4, and 8 bytes are passed in */
1523 /* (a) register(s). */
1524 /*----------------------------------*/
1525 case 0:
1526 case 1:
1527 case 2:
1528 case 4:
1529 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1530 cinfo->args[nParm].size = size;
1531 cinfo->args[nParm].regtype = RegTypeStructByVal;
1532 nParm++;
1533 sz->local_size += sizeof(long);
1534 break;
1535 case 8:
1536 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1537 cinfo->args[nParm].size = sizeof(long long);
1538 cinfo->args[nParm].regtype = RegTypeStructByVal;
1539 nParm++;
1540 sz->local_size += sizeof(long);
1541 break;
1542 default:
1543 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1544 nParm++;
1545 }
1546 }
1547 break;
1548 default:
1549 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1550 }
1551 }
1552
1553 /*----------------------------------------------------------*/
1554 /* If we are passing a structure back then if it won't be */
1555 /* in a register(s) then we make room at the end of the */
1556 /* parameters that may have been placed on the stack */
1557 /*----------------------------------------------------------*/
1558 if (cinfo->struct_ret) {
1559 cinfo->ret.offset = sz->stack_size;
1560 switch (cinfo->ret.size) {
1561 case 0:
1562 case 1:
1563 case 2:
1564 case 4:
1565 case 8:
1566 break;
1567 default:
1568 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1569 }
1570 }
1571
1572 /*----------------------------------------------------------*/
1573 /* Handle the case where there are no implicit arguments */
1574 /*----------------------------------------------------------*/
1575 if ((sig->call_convention == MONO_CALL_VARARG) &&
1576 (sig->param_count == sig->sentinelpos)) {
1577 gr = S390_LAST_ARG_REG + 1;
1578 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1579 }
1580
1581 cinfo->lastgr = gr;
1582 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1583 sz->offset;
1584 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1585
1586 return (cinfo);
1587 }
1588
1589 /*========================= End of Function ========================*/
1590
1591 /*------------------------------------------------------------------*/
1592 /* */
1593 /* Name - mono_arch_allocate_vars */
1594 /* */
1595 /* Function - Set var information according to the calling */
1596 /* convention for S/390. The local var stuff should */
1597 /* most likely be split in another method. */
1598 /* */
1599 /* Parameter - @m - Compile unit. */
1600 /* */
1601 /*------------------------------------------------------------------*/
1602
1603 void
1604 mono_arch_allocate_vars (MonoCompile *cfg)
1605 {
1606 MonoMethodSignature *sig;
1607 MonoMethodHeader *header;
1608 MonoInst *inst;
1609 CallInfo *cinfo;
1610 size_data sz;
1611 int iParm, iVar, offset, size, align, curinst;
1612 int frame_reg = STK_BASE;
1613 int sArg, eArg;
1614
1615 header = mono_method_get_header (cfg->method);
1616
1617 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1618
1619 /*---------------------------------------------------------*/
1620 /* We use the frame register also for any method that has */
1621 /* filter clauses. This way, when the handlers are called, */
1622 /* the code will reference local variables using the frame */
1623 /* reg instead of the stack pointer: if we had to restore */
1624 /* the stack pointer, we'd corrupt the method frames that */
1625 /* are already on the stack (since filters get called */
1626 /* before stack unwinding happens) when the filter code */
1627 /* would call any method. */
1628 /*---------------------------------------------------------*/
1629 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1630 frame_reg = s390_r11;
1631
1632 cfg->frame_reg = frame_reg;
1633
1634 if (frame_reg != STK_BASE)
1635 cfg->used_int_regs |= 1 << frame_reg;
1636
1637 sig = mono_method_signature (cfg->method);
1638
1639 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1640
1641 if (cinfo->struct_ret) {
1642 cfg->ret->opcode = OP_REGVAR;
1643 cfg->ret->inst_c0 = s390_r2;
1644 } else {
1645 switch (mono_type_get_underlying_type (sig->ret)->type) {
1646 case MONO_TYPE_VOID:
1647 break;
1648 default:
1649 cfg->ret->opcode = OP_REGVAR;
1650 cfg->ret->dreg = s390_r2;
1651 break;
1652 }
1653 }
1654
1655 /*--------------------------------------------------------------*/
1656 /* local vars are at a positive offset from the stack pointer */
1657 /* also note that if the function uses alloca, we use s390_r11 */
1658 /* to point at the local variables. */
1659 /* add parameter area size for called functions */
1660 /*--------------------------------------------------------------*/
1661 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1662 cfg->sig_cookie = 0;
1663
1664 if (cinfo->struct_ret) {
1665 inst = cfg->ret;
1666 offset = S390_ALIGN(offset, sizeof(gpointer));
1667 inst->inst_offset = offset;
1668 inst->opcode = OP_REGOFFSET;
1669 inst->inst_basereg = frame_reg;
1670 offset += sizeof(gpointer);
1671 if ((sig->call_convention == MONO_CALL_VARARG) &&
1672 (!retFitsInReg (cinfo->ret.size)))
1673 cfg->sig_cookie += cinfo->ret.size;
1674 }
1675
1676 if (sig->hasthis) {
1677 inst = cfg->varinfo [0];
1678 if (inst->opcode != OP_REGVAR) {
1679 inst->opcode = OP_REGOFFSET;
1680 inst->inst_basereg = frame_reg;
1681 offset = S390_ALIGN(offset, sizeof(gpointer));
1682 inst->inst_offset = offset;
1683 offset += sizeof (gpointer);
1684 }
1685 curinst = sArg = 1;
1686 } else {
1687 curinst = sArg = 0;
1688 }
1689
1690 eArg = sig->param_count + sArg;
1691
1692 if (sig->call_convention == MONO_CALL_VARARG)
1693 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1694
1695 for (iParm = sArg; iParm < eArg; ++iParm) {
1696 inst = cfg->varinfo [curinst];
1697 if (inst->opcode != OP_REGVAR) {
1698 switch (cinfo->args[iParm].regtype) {
1699 case RegTypeStructByAddr :
1700 if (cinfo->args[iParm].reg == STK_BASE) {
1701 inst->opcode = OP_S390_LOADARG;
1702 inst->inst_basereg = frame_reg;
1703 size = abs(cinfo->args[iParm].vtsize);
1704 offset = S390_ALIGN(offset, sizeof(long));
1705 inst->inst_offset = offset;
1706 inst->backend.arg_info = cinfo->args[iParm].offset;
1707 } else {
1708 inst->opcode = OP_S390_ARGREG;
1709 inst->inst_basereg = frame_reg;
1710 size = sizeof(gpointer);
1711 offset = S390_ALIGN(offset, size);
1712 inst->inst_offset = offset;
1713 inst->backend.arg_info = cinfo->args[iParm].offset;
1714 }
1715 break;
1716 case RegTypeStructByVal :
1717 inst->opcode = OP_S390_ARGPTR;
1718 inst->inst_basereg = frame_reg;
1719 size = cinfo->args[iParm].size;
1720 offset = S390_ALIGN(offset, size);
1721 inst->inst_offset = offset;
1722 inst->backend.arg_info = cinfo->args[iParm].offset;
1723 break;
1724 default :
1725 if (cinfo->args[iParm].reg != STK_BASE) {
1726 inst->opcode = OP_REGOFFSET;
1727 inst->inst_basereg = frame_reg;
1728 size = (cinfo->args[iParm].size < 8
1729 ? sizeof(long)
1730 : sizeof(long long));
1731 offset = S390_ALIGN(offset, size);
1732 inst->inst_offset = offset;
1733 } else {
1734 inst->opcode = OP_S390_STKARG;
1735 inst->inst_basereg = frame_reg;
1736 size = (cinfo->args[iParm].size < 4
1737 ? 4 - cinfo->args[iParm].size
1738 : 0);
1739 inst->inst_offset = cinfo->args[iParm].offset +
1740 size;
1741 inst->backend.arg_info = 0;
1742 size = sizeof(long);
1743 }
1744 }
1745 if ((sig->call_convention == MONO_CALL_VARARG) &&
1746 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1747 (iParm < sig->sentinelpos))
1748 cfg->sig_cookie += size;
1749
1750 offset += size;
1751 }
1752 curinst++;
1753 }
1754
1755 curinst = cfg->locals_start;
1756 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1757 inst = cfg->varinfo [iVar];
1758 if ((inst->flags & MONO_INST_IS_DEAD) ||
1759 (inst->opcode == OP_REGVAR))
1760 continue;
1761
1762 /*--------------------------------------------------*/
1763 /* inst->backend.is_pinvoke indicates native sized value types, */
1764 /* this is used by the pinvoke wrappers when they */
1765 /* call functions returning structure */
1766 /*--------------------------------------------------*/
1767 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1768 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1769 else
1770 size = mono_type_size (inst->inst_vtype, &align);
1771
1772 offset = S390_ALIGN(offset, align);
1773 inst->inst_offset = offset;
1774 inst->opcode = OP_REGOFFSET;
1775 inst->inst_basereg = frame_reg;
1776 offset += size;
1777 DEBUG (g_print("allocating local %d to %ld\n", iVar, inst->inst_offset));
1778 }
1779
1780 /*------------------------------------------------------*/
1781 /* Allow space for the trace method stack area if needed*/
1782 /*------------------------------------------------------*/
1783 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method)) {
1784 offset += S390_TRACE_STACK_SIZE;
1785 }
1786
1787 /*------------------------------------------------------*/
1788 /* Reserve space to save LMF and caller saved registers */
1789 /*------------------------------------------------------*/
1790 if (cfg->method->save_lmf)
1791 offset += sizeof (MonoLMF);
1792
1793 /*------------------------------------------------------*/
1794 /* align the offset */
1795 /*------------------------------------------------------*/
1796 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1797
1798 }
1799
1800 /*========================= End of Function ========================*/
1801
1802 /*------------------------------------------------------------------*/
1803 /* */
1804 /* Name - mono_arch_call_opcode */
1805 /* */
1806 /* Function - Take the arguments and generate the arch-specific */
1807 /* instructions to properly call the function. This */
1808 /* includes pushing, moving argments to the correct */
1809 /* etc. */
1810 /* */
1811 /*------------------------------------------------------------------*/
1812
1813 MonoCallInst*
1814 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1815 MonoCallInst *call, int is_virtual) {
1816 MonoInst *in;
1817 MonoCallArgParm *arg;
1818 MonoMethodSignature *sig;
1819 int i, n, lParamArea;
1820 CallInfo *cinfo;
1821 ArgInfo *ainfo;
1822 size_data sz;
1823 int stackSize;
1824
1825 sig = call->signature;
1826 n = sig->param_count + sig->hasthis;
1827 DEBUG (g_print ("Call requires: %d parameters\n",n));
1828
1829 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1830
1831 stackSize = sz.stack_size + sz.local_size + sz.parm_size + sz.offset;
1832 call->stack_usage = MAX(stackSize, call->stack_usage);
1833 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-sz.parm_size), 0);
1834 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
1835 cfg->flags |= MONO_CFG_HAS_CALLS;
1836
1837 if (cinfo->struct_ret)
1838 call->used_iregs |= 1 << cinfo->ret.reg;
1839
1840 for (i = 0; i < n; ++i) {
1841 ainfo = cinfo->args + i;
1842
1843 if ((sig->call_convention == MONO_CALL_VARARG) &&
1844 (i == sig->sentinelpos)) {
1845 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
1846 }
1847
1848 if (is_virtual && i == 0) {
1849 /* the argument will be attached to the call instrucion */
1850 in = call->args [i];
1851 call->used_iregs |= 1 << ainfo->reg;
1852 } else {
1853 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG);
1854 in = call->args [i];
1855 arg->ins.cil_code = in->cil_code;
1856 arg->ins.inst_left = in;
1857 arg->ins.type = in->type;
1858 /* prepend, we'll need to reverse them later */
1859 arg->ins.next = call->out_args;
1860 call->out_args = (MonoInst *) arg;
1861 arg->ins.inst_right = (MonoInst *) call;
1862 if (ainfo->regtype == RegTypeGeneral) {
1863 arg->ins.backend.reg3 = ainfo->reg;
1864 call->used_iregs |= 1 << ainfo->reg;
1865 if (arg->ins.type == STACK_I8)
1866 call->used_iregs |= 1 << (ainfo->reg + 1);
1867 } else if (ainfo->regtype == RegTypeStructByAddr) {
1868 call->used_iregs |= 1 << ainfo->reg;
1869 arg->ins.sreg1 = ainfo->reg;
1870 arg->ins.opcode = OP_OUTARG_VT;
1871 arg->size = -ainfo->vtsize;
1872 arg->offset = ainfo->offset;
1873 arg->offPrm = ainfo->offparm + sz.offStruct;
1874 } else if (ainfo->regtype == RegTypeStructByVal) {
1875 if (ainfo->reg != STK_BASE) {
1876 switch (ainfo->size) {
1877 case 0:
1878 case 1:
1879 case 2:
1880 case 4:
1881 call->used_iregs |= 1 << ainfo->reg;
1882 break;
1883 case 8:
1884 call->used_iregs |= 1 << ainfo->reg;
1885 call->used_iregs |= 1 << (ainfo->reg+1);
1886 break;
1887 default:
1888 call->used_iregs |= 1 << ainfo->reg;
1889 }
1890 }
1891 arg->ins.sreg1 = ainfo->reg;
1892 arg->ins.opcode = OP_OUTARG_VT;
1893 arg->size = ainfo->size;
1894 arg->offset = ainfo->offset;
1895 arg->offPrm = ainfo->offparm + sz.offStruct;
1896 } else if (ainfo->regtype == RegTypeBase) {
1897 arg->ins.opcode = OP_OUTARG_MEMBASE;
1898 arg->ins.sreg1 = ainfo->reg;
1899 arg->size = ainfo->size;
1900 arg->offset = ainfo->offset;
1901 call->used_iregs |= 1 << ainfo->reg;
1902 } else if (ainfo->regtype == RegTypeFP) {
1903 arg->ins.backend.reg3 = ainfo->reg;
1904 call->used_fregs |= 1 << ainfo->reg;
1905 if (ainfo->size == 4)
1906 arg->ins.opcode = OP_OUTARG_R4;
1907 else
1908 arg->ins.opcode = OP_OUTARG_R8;
1909 } else {
1910 g_assert_not_reached ();
1911 }
1912 }
1913 }
1914
1915 /*
1916 * Handle the case where there are no implicit arguments
1917 */
1918 if ((sig->call_convention == MONO_CALL_VARARG) &&
1919 (i == sig->sentinelpos)) {
1920 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
1921 }
1922
1923 /*
1924 * Reverse the call->out_args list.
1925 */
1926 {
1927 MonoInst *prev = NULL, *list = call->out_args, *next;
1928 while (list) {
1929 next = list->next;
1930 list->next = prev;
1931 prev = list;
1932 list = next;
1933 }
1934 call->out_args = prev;
1935 }
1936
1937 g_free (cinfo);
1938 return call;
1939 }
1940
1941 /*========================= End of Function ========================*/
1942
1943 /*------------------------------------------------------------------*/
1944 /* */
1945 /* Name - emit_sig_cookie. */
1946 /* */
1947 /* Function - For variable length parameter lists construct a */
1948 /* signature cookie and emit it. */
1949 /* */
1950 /*------------------------------------------------------------------*/
1951
1952 static void
1953 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call,
1954 CallInfo *cinfo, int argSize)
1955 {
1956 MonoCallArgParm *arg;
1957 MonoMethodSignature *tmpSig;
1958 MonoInst *sigArg;
1959
1960 cfg->disable_aot = TRUE;
1961
1962 /*----------------------------------------------------------*/
1963 /* mono_ArgIterator_Setup assumes the signature cookie is */
1964 /* passed first and all the arguments which were before it */
1965 /* passed on the stack after the signature. So compensate */
1966 /* by passing a different signature. */
1967 /*----------------------------------------------------------*/
1968 tmpSig = mono_metadata_signature_dup (call->signature);
1969 tmpSig->param_count -= call->signature->sentinelpos;
1970 tmpSig->sentinelpos = 0;
1971 if (tmpSig->param_count > 0)
1972 memcpy (tmpSig->params,
1973 call->signature->params + call->signature->sentinelpos,
1974 tmpSig->param_count * sizeof(MonoType *));
1975
1976 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
1977 sigArg->inst_p0 = tmpSig;
1978
1979 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG_MEMBASE);
1980 arg->ins.inst_left = sigArg;
1981 arg->ins.inst_right = (MonoInst *) call;
1982 arg->size = argSize;
1983 arg->offset = cinfo->sigCookie.offset;
1984 arg->ins.next = call->out_args;
1985 call->out_args = (MonoInst *) arg;
1986 }
1987
1988 /*========================= End of Function ========================*/
1989
1990 /*------------------------------------------------------------------*/
1991 /* */
1992 /* Name - mono_arch_instrument_mem_needs */
1993 /* */
1994 /* Function - Allow tracing to work with this interface (with */
1995 /* an optional argument). */
1996 /* */
1997 /*------------------------------------------------------------------*/
1998
1999 void
2000 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2001 {
2002 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2003 *stack = 0;
2004 /* split prolog-epilog requirements? */
2005 *code = 50; /* max bytes needed: check this number */
2006 }
2007
2008 /*========================= End of Function ========================*/
2009
2010 /*------------------------------------------------------------------*/
2011 /* */
2012 /* Name - mono_arch_instrument_prolog */
2013 /* */
2014 /* Function - Create an "instrumented" prolog. */
2015 /* */
2016 /*------------------------------------------------------------------*/
2017
2018 void*
2019 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2020 gboolean enable_arguments)
2021 {
2022 guchar *code = p;
2023 int parmOffset,
2024 fpOffset,
2025 baseReg;
2026
2027 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2028 if (cfg->method->save_lmf)
2029 parmOffset -= sizeof(MonoLMF);
2030 fpOffset = parmOffset + (5*sizeof(gint32));
2031 if (fpOffset > 4096) {
2032 s390_lr (code, s390_r12, STK_BASE);
2033 baseReg = s390_r12;
2034 while (fpOffset > 4096) {
2035 s390_ahi (code, baseReg, 4096);
2036 fpOffset -= 4096;
2037 parmOffset -= 4096;
2038 }
2039 } else {
2040 baseReg = STK_BASE;
2041 }
2042
2043 s390_stm (code, s390_r2, s390_r6, baseReg, parmOffset);
2044 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2045 s390_std (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2046 s390_std (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2047 s390_basr (code, s390_r13, 0);
2048 s390_j (code, 6);
2049 s390_word (code, cfg->method);
2050 s390_word (code, func);
2051 s390_l (code, s390_r2, 0, s390_r13, 4);
2052 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2053 s390_lr (code, s390_r4, STK_BASE);
2054 s390_ahi (code, s390_r4, cfg->stack_usage);
2055 s390_l (code, s390_r1, 0, s390_r13, 8);
2056 s390_basr (code, s390_r14, s390_r1);
2057 s390_ld (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2058 s390_ld (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2059 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2060 s390_lm (code, s390_r2, s390_r6, baseReg, parmOffset);
2061
2062 return code;
2063 }
2064
2065 /*========================= End of Function ========================*/
2066
2067 /*------------------------------------------------------------------*/
2068 /* */
2069 /* Name - mono_arch_instrument_epilog */
2070 /* */
2071 /* Function - Create an epilog that will handle the returned */
2072 /* values used in instrumentation. */
2073 /* */
2074 /*------------------------------------------------------------------*/
2075
2076 void*
2077 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2078 {
2079 guchar *code = p;
2080 int save_mode = SAVE_NONE,
2081 saveOffset;
2082 MonoMethod *method = cfg->method;
2083 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2084
2085 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2086 if (method->save_lmf)
2087 saveOffset -= sizeof(MonoLMF);
2088
2089 handle_enum:
2090 switch (rtype) {
2091 case MONO_TYPE_VOID:
2092 /* special case string .ctor icall */
2093 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2094 save_mode = SAVE_ONE;
2095 else
2096 save_mode = SAVE_NONE;
2097 break;
2098 case MONO_TYPE_I8:
2099 case MONO_TYPE_U8:
2100 save_mode = SAVE_TWO;
2101 break;
2102 case MONO_TYPE_R4:
2103 save_mode = SAVE_R4;
2104 break;
2105 case MONO_TYPE_R8:
2106 save_mode = SAVE_R8;
2107 break;
2108 case MONO_TYPE_VALUETYPE:
2109 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2110 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
2111 goto handle_enum;
2112 }
2113 save_mode = SAVE_STRUCT;
2114 break;
2115 default:
2116 save_mode = SAVE_ONE;
2117 break;
2118 }
2119
2120 switch (save_mode) {
2121 case SAVE_TWO:
2122 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2123 if (enable_arguments) {
2124 s390_lr (code, s390_r4, s390_r3);
2125 s390_lr (code, s390_r3, s390_r2);
2126 }
2127 break;
2128 case SAVE_ONE:
2129 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2130 if (enable_arguments) {
2131 s390_lr (code, s390_r3, s390_r2);
2132 }
2133 break;
2134 case SAVE_R4:
2135 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2136 if (enable_arguments) {
2137 s390_ldebr (code, s390_f0, s390_f0);
2138 }
2139 break;
2140 case SAVE_R8:
2141 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2142 break;
2143 case SAVE_STRUCT:
2144 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2145 if (enable_arguments) {
2146 s390_l (code, s390_r3, 0, cfg->frame_reg,
2147 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2148 }
2149 break;
2150 case SAVE_NONE:
2151 default:
2152 break;
2153 }
2154
2155 s390_basr (code, s390_r13, 0);
2156 s390_j (code, 6);
2157 s390_word (code, cfg->method);
2158 s390_word (code, func);
2159 s390_l (code, s390_r2, 0, s390_r13, 4);
2160 s390_l (code, s390_r1, 0, s390_r13, 8);
2161 s390_basr (code, s390_r14, s390_r1);
2162
2163 switch (save_mode) {
2164 case SAVE_TWO:
2165 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2166 break;
2167 case SAVE_ONE:
2168 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2169 break;
2170 case SAVE_R4:
2171 case SAVE_R8:
2172 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2173 break;
2174 case SAVE_STRUCT:
2175 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2176 break;
2177 case SAVE_NONE:
2178 default:
2179 break;
2180 }
2181
2182 return code;
2183 }
2184
2185 /*========================= End of Function ========================*/
2186
2187 /*------------------------------------------------------------------*/
2188 /* */
2189 /* Name - peephole_pass */
2190 /* */
2191 /* Function - Form a peephole pass at the code looking for */
2192 /* simple optimizations. */
2193 /* */
2194 /*------------------------------------------------------------------*/
2195
2196 static void
2197 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2198 {
2199 MonoInst *ins, *last_ins = NULL;
2200 ins = bb->code;
2201
2202 while (ins) {
2203
2204 switch (ins->opcode) {
2205 case OP_MUL_IMM:
2206 /* remove unnecessary multiplication with 1 */
2207 if (ins->inst_imm == 1) {
2208 if (ins->dreg != ins->sreg1) {
2209 ins->opcode = OP_MOVE;
2210 } else {
2211 last_ins->next = ins->next;
2212 ins = ins->next;
2213 continue;
2214 }
2215 }
2216 break;
2217 case OP_LOAD_MEMBASE:
2218 case OP_LOADI4_MEMBASE:
2219 /*
2220 * OP_STORE_MEMBASE_REG reg, offset(basereg)
2221 * OP_LOAD_MEMBASE offset(basereg), reg
2222 */
2223 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
2224 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
2225 ins->inst_basereg == last_ins->inst_destbasereg &&
2226 ins->inst_offset == last_ins->inst_offset) {
2227 if (ins->dreg == last_ins->sreg1) {
2228 last_ins->next = ins->next;
2229 ins = ins->next;
2230 continue;
2231 } else {
2232 ins->opcode = OP_MOVE;
2233 ins->sreg1 = last_ins->sreg1;
2234 }
2235
2236 /*
2237 * Note: reg1 must be different from the basereg in the second load
2238 * OP_LOAD_MEMBASE offset(basereg), reg1
2239 * OP_LOAD_MEMBASE offset(basereg), reg2
2240 * -->
2241 * OP_LOAD_MEMBASE offset(basereg), reg1
2242 * OP_MOVE reg1, reg2
2243 */
2244 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
2245 || last_ins->opcode == OP_LOAD_MEMBASE) &&
2246 ins->inst_basereg != last_ins->dreg &&
2247 ins->inst_basereg == last_ins->inst_basereg &&
2248 ins->inst_offset == last_ins->inst_offset) {
2249
2250 if (ins->dreg == last_ins->dreg) {
2251 last_ins->next = ins->next;
2252 ins = ins->next;
2253 continue;
2254 } else {
2255 ins->opcode = OP_MOVE;
2256 ins->sreg1 = last_ins->dreg;
2257 }
2258
2259 //g_assert_not_reached ();
2260
2261 #if 0
2262 /*
2263 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
2264 * OP_LOAD_MEMBASE offset(basereg), reg
2265 * -->
2266 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
2267 * OP_ICONST reg, imm
2268 */
2269 } else if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_IMM
2270 || last_ins->opcode == OP_STORE_MEMBASE_IMM) &&
2271 ins->inst_basereg == last_ins->inst_destbasereg &&
2272 ins->inst_offset == last_ins->inst_offset) {
2273 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
2274 ins->opcode = OP_ICONST;
2275 ins->inst_c0 = last_ins->inst_imm;
2276 g_assert_not_reached (); // check this rule
2277 #endif
2278 }
2279 break;
2280 case OP_LOADU1_MEMBASE:
2281 case OP_LOADI1_MEMBASE:
2282 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
2283 ins->inst_basereg == last_ins->inst_destbasereg &&
2284 ins->inst_offset == last_ins->inst_offset) {
2285 if (ins->dreg == last_ins->sreg1) {
2286 last_ins->next = ins->next;
2287 ins = ins->next;
2288 continue;
2289 } else {
2290 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
2291 ins->opcode = OP_MOVE;
2292 ins->sreg1 = last_ins->sreg1;
2293 }
2294 }
2295 break;
2296 case OP_LOADU2_MEMBASE:
2297 case OP_LOADI2_MEMBASE:
2298 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
2299 ins->inst_basereg == last_ins->inst_destbasereg &&
2300 ins->inst_offset == last_ins->inst_offset) {
2301 if (ins->dreg == last_ins->sreg1) {
2302 last_ins->next = ins->next;
2303 ins = ins->next;
2304 continue;
2305 } else {
2306 ins->opcode = OP_MOVE;
2307 ins->sreg1 = last_ins->sreg1;
2308 }
2309 }
2310 break;
2311 case CEE_CONV_I4:
2312 case CEE_CONV_U4:
2313 case OP_MOVE:
2314 /*
2315 * OP_MOVE reg, reg
2316 */
2317 if (ins->dreg == ins->sreg1) {
2318 if (last_ins)
2319 last_ins->next = ins->next;
2320 ins = ins->next;
2321 continue;
2322 }
2323 /*
2324 * OP_MOVE sreg, dreg
2325 * OP_MOVE dreg, sreg
2326 */
2327 if (last_ins && last_ins->opcode == OP_MOVE &&
2328 ins->sreg1 == last_ins->dreg &&
2329 ins->dreg == last_ins->sreg1) {
2330 last_ins->next = ins->next;
2331 ins = ins->next;
2332 continue;
2333 }
2334 break;
2335 }
2336 last_ins = ins;
2337 ins = ins->next;
2338 }
2339 bb->last_ins = last_ins;
2340 }
2341
2342 /*========================= End of Function ========================*/
2343
2344 /*------------------------------------------------------------------*/
2345 /* */
2346 /* Name - mono_arch_local_regalloc. */
2347 /* */
2348 /* Function - We first scan the list of instructions and we */
2349 /* save the liveness information of each register */
2350 /* (when the register is first used, when its value */
2351 /* is set etc.). We also reverse the list of instr- */
2352 /* uctions (in the InstList list) because assigning */
2353 /* registers backwards allows for more tricks to be */
2354 /* used. */
2355 /* */
2356 /*------------------------------------------------------------------*/
2357
2358 void
2359 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2360 {
2361 mono_local_regalloc(cfg, bb);
2362 }
2363
2364 /*========================= End of Function ========================*/
2365
2366 /*------------------------------------------------------------------*/
2367 /* */
2368 /* Name - emit_float_to_int */
2369 /* */
2370 /* Function - Create instructions which will convert a floating */
2371 /* point value to integer. */
2372 /* */
2373 /*------------------------------------------------------------------*/
2374
2375 static guchar*
2376 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2377 {
2378 /* sreg is a float, dreg is an integer reg. */
2379 if (is_signed) {
2380 s390_cfdbr (code, dreg, 5, sreg);
2381 switch (size) {
2382 case 1:
2383 s390_lhi (code, s390_r0, 0);
2384 s390_lhi (code, s390_r13, 0xff);
2385 s390_ltr (code, dreg, dreg);
2386 s390_jnl (code, 4);
2387 s390_lhi (code, s390_r0, 0x80);
2388 s390_nr (code, dreg, s390_r13);
2389 s390_or (code, dreg, s390_r0);
2390 break;
2391 }
2392 } else {
2393 short *o[1];
2394 s390_basr (code, s390_r13, 0);
2395 s390_j (code, 10);
2396 s390_llong (code, 0x41e0000000000000);
2397 s390_llong (code, 0x41f0000000000000);
2398 s390_ldr (code, s390_f15, sreg);
2399 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2400 s390_jl (code, 0); CODEPTR(code, o[0]);
2401 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2402 s390_cfdbr (code, dreg, 7, s390_f15);
2403 s390_j (code, 4);
2404 PTRSLOT(code, o[0]);
2405 s390_cfdbr (code, dreg, 5, sreg);
2406 switch (size) {
2407 case 1:
2408 s390_lhi (code, s390_r0, 0xff);
2409 s390_nr (code, dreg, s390_r0);
2410 break;
2411 case 2:
2412 s390_lhi (code, s390_r0, -1);
2413 s390_srl (code, s390_r0, 0, 16);
2414 s390_nr (code, dreg, s390_r0);
2415 break;
2416 }
2417 }
2418 return code;
2419 }
2420
2421 /*========================= End of Function ========================*/
2422
2423 /*------------------------------------------------------------------*/
2424 /* */
2425 /* Name - mono_arch_output_basic_block */
2426 /* */
2427 /* Function - Perform the "real" work of emitting instructions */
2428 /* that will do the work of in the basic block. */
2429 /* */
2430 /*------------------------------------------------------------------*/
2431
2432 void
2433 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2434 {
2435 MonoInst *ins;
2436 MonoCallInst *call;
2437 guint offset;
2438 guint8 *code = cfg->native_code + cfg->code_len;
2439 MonoInst *last_ins = NULL;
2440 guint last_offset = 0;
2441 int max_len, cpos, src2;
2442
2443 if (cfg->opt & MONO_OPT_PEEPHOLE)
2444 peephole_pass (cfg, bb);
2445
2446 /* we don't align basic blocks of loops on s390 */
2447
2448 if (cfg->verbose_level > 2)
2449 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2450
2451 cpos = bb->max_offset;
2452
2453 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2454 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2455 //g_assert (!mono_compile_aot);
2456 //cpos += 6;
2457 //if (bb->cil_code)
2458 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2459 /* this is not thread save, but good enough */
2460 /* fixme: howto handle overflows? */
2461 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2462 }
2463
2464 ins = bb->code;
2465 while (ins) {
2466 offset = code - cfg->native_code;
2467
2468 max_len = ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
2469
2470 if (offset > (cfg->code_size - max_len - 16)) {
2471 cfg->code_size *= 2;
2472 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2473 code = cfg->native_code + offset;
2474 }
2475
2476 mono_debug_record_line_number (cfg, ins, offset);
2477
2478 switch (ins->opcode) {
2479 case OP_STOREI1_MEMBASE_IMM: {
2480 s390_lhi (code, s390_r0, ins->inst_imm);
2481 if (s390_is_uimm12(ins->inst_offset))
2482 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2483 else {
2484 s390_basr (code, s390_r13, 0);
2485 s390_j (code, 4);
2486 s390_word (code, ins->inst_offset);
2487 s390_l (code, s390_r13, 0, s390_r13, 4);
2488 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2489 }
2490 }
2491 break;
2492 case OP_STOREI2_MEMBASE_IMM: {
2493 s390_lhi (code, s390_r0, ins->inst_imm);
2494 if (s390_is_uimm12(ins->inst_offset)) {
2495 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2496 } else {
2497 s390_basr (code, s390_r13, 0);
2498 s390_j (code, 4);
2499 s390_word (code, ins->inst_offset);
2500 s390_l (code, s390_r13, 0, s390_r13, 4);
2501 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2502 }
2503 }
2504 break;
2505 case OP_STORE_MEMBASE_IMM:
2506 case OP_STOREI4_MEMBASE_IMM: {
2507 if (s390_is_imm16(ins->inst_imm)) {
2508 s390_lhi (code, s390_r0, ins->inst_imm);
2509 } else {
2510 s390_basr (code, s390_r13, 0);
2511 s390_j (code, 4);
2512 s390_word (code, ins->inst_imm);
2513 s390_l (code, s390_r0, 0, s390_r13, 4);
2514 }
2515 if (s390_is_uimm12(ins->inst_offset)) {
2516 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2517 } else {
2518 s390_basr (code, s390_r13, 0);
2519 s390_j (code, 4);
2520 s390_word (code, ins->inst_offset);
2521 s390_l (code, s390_r13, 0, s390_r13, 4);
2522 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2523 }
2524 }
2525 break;
2526 case OP_STOREI1_MEMBASE_REG: {
2527 if (s390_is_uimm12(ins->inst_offset)) {
2528 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2529 } else {
2530 s390_basr (code, s390_r13, 0);
2531 s390_j (code, 4);
2532 s390_word (code, ins->inst_offset);
2533 s390_l (code, s390_r13, 0, s390_r13, 4);
2534 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2535 }
2536 }
2537 break;
2538 case OP_STOREI2_MEMBASE_REG: {
2539 if (s390_is_uimm12(ins->inst_offset)) {
2540 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2541 } else {
2542 s390_basr (code, s390_r13, 0);
2543 s390_j (code, 4);
2544 s390_word (code, ins->inst_offset);
2545 s390_l (code, s390_r13, 0, s390_r13, 4);
2546 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2547 }
2548 }
2549 break;
2550 case OP_STORE_MEMBASE_REG:
2551 case OP_STOREI4_MEMBASE_REG: {
2552 if (s390_is_uimm12(ins->inst_offset)) {
2553 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2554 } else {
2555 s390_basr (code, s390_r13, 0);
2556 s390_j (code, 4);
2557 s390_word (code, ins->inst_offset);
2558 s390_l (code, s390_r13, 0, s390_r13, 4);
2559 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2560 }
2561 }
2562 break;
2563 case CEE_LDIND_I:
2564 case CEE_LDIND_I4:
2565 case CEE_LDIND_U4: {
2566 s390_basr (code, s390_r13, 0);
2567 s390_j (code, 4);
2568 s390_word (code, ins->inst_p0);
2569 s390_l (code, s390_r13, 0, s390_r13, 4);
2570 s390_l (code, ins->dreg, 0, s390_r13, 0);
2571 }
2572 break;
2573 case OP_LOADU4_MEM:
2574 g_assert_not_reached ();
2575 break;
2576 case OP_LOAD_MEMBASE:
2577 case OP_LOADI4_MEMBASE:
2578 case OP_LOADU4_MEMBASE: {
2579 if (s390_is_uimm12(ins->inst_offset))
2580 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2581 else {
2582 if (s390_is_imm16(ins->inst_offset)) {
2583 s390_lhi (code, s390_r13, ins->inst_offset);
2584 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2585 } else {
2586 s390_basr (code, s390_r13, 0);
2587 s390_j (code, 4);
2588 s390_word (code, ins->inst_offset);
2589 s390_l (code, s390_r13, 0, s390_r13, 4);
2590 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2591 }
2592 }
2593 }
2594 break;
2595 case OP_LOADU1_MEMBASE: {
2596 s390_lhi (code, s390_r0, 0);
2597 if (s390_is_uimm12(ins->inst_offset))
2598 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2599 else {
2600 s390_basr (code, s390_r13, 0);
2601 s390_j (code, 4);
2602 s390_word (code, ins->inst_offset);
2603 s390_l (code, s390_r13, 0, s390_r13, 4);
2604 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2605 }
2606 s390_lr (code, ins->dreg, s390_r0);
2607 }
2608 break;
2609 case OP_LOADI1_MEMBASE: {
2610 s390_lhi (code, s390_r0, 0);
2611 if (s390_is_uimm12(ins->inst_offset))
2612 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2613 else {
2614 s390_basr (code, s390_r13, 0);
2615 s390_j (code, 4);
2616 s390_word (code, ins->inst_offset);
2617 s390_l (code, s390_r13, 0, s390_r13, 4);
2618 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2619 }
2620 s390_lhi (code, s390_r13, 0x80);
2621 s390_nr (code, s390_r13, s390_r0);
2622 s390_jz (code, 5);
2623 s390_lhi (code, s390_r13, 0xff00);
2624 s390_or (code, s390_r0, s390_r13);
2625 s390_lr (code, ins->dreg, s390_r0);
2626 }
2627 break;
2628 case OP_LOADU2_MEMBASE: {
2629 s390_lhi (code, s390_r0, 0);
2630 if (s390_is_uimm12(ins->inst_offset))
2631 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
2632 else {
2633 s390_basr (code, s390_r13, 0);
2634 s390_j (code, 4);
2635 s390_word (code, ins->inst_offset);
2636 s390_l (code, s390_r13, 0, s390_r13, 4);
2637 s390_ar (code, s390_r13, ins->inst_basereg);
2638 s390_icm (code, s390_r0, 3, s390_r13, 0);
2639 }
2640 s390_lr (code, ins->dreg, s390_r0);
2641 }
2642 break;
2643 case OP_LOADI2_MEMBASE: {
2644 s390_lhi (code, s390_r0, 0);
2645 if (s390_is_uimm12(ins->inst_offset))
2646 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2647 else {
2648 s390_basr (code, s390_r13, 0);
2649 s390_j (code, 4);
2650 s390_word (code, ins->inst_offset);
2651 s390_l (code, s390_r13, 0, s390_r13, 4);
2652 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2653 }
2654 s390_lr (code, ins->dreg, s390_r0);
2655 }
2656 break;
2657 case CEE_CONV_I1: {
2658 s390_lhi (code, s390_r0, 0x80);
2659 if (ins->dreg != ins->sreg1) {
2660 s390_lr (code, ins->dreg, ins->sreg1);
2661 }
2662 s390_nr (code, s390_r0, ins->sreg1);
2663 s390_jz (code, 7);
2664 s390_lhi (code, s390_r13, -1);
2665 s390_sll (code, s390_r13, 0, 8);
2666 s390_or (code, ins->dreg, s390_r13);
2667 }
2668 break;
2669 case CEE_CONV_I2: {
2670 s390_lhi (code, s390_r0, 0x80);
2671 s390_sll (code, s390_r0, 0, 8);
2672 if (ins->dreg != ins->sreg1) {
2673 s390_lr (code, ins->dreg, ins->sreg1);
2674 }
2675 s390_nr (code, s390_r0, ins->sreg1);
2676 s390_jz (code, 7);
2677 s390_lhi (code, s390_r13, -1);
2678 s390_sll (code, s390_r13, 0, 16);
2679 s390_or (code, ins->dreg, s390_r13);
2680 }
2681 break;
2682 case CEE_CONV_U1: {
2683 s390_lhi (code, s390_r0, 0xff);
2684 if (ins->dreg != ins->sreg1) {
2685 s390_lr (code, ins->dreg, ins->sreg1);
2686 }
2687 s390_nr (code, ins->dreg, s390_r0);
2688 }
2689 break;
2690 case CEE_CONV_U2: {
2691 s390_lhi (code, s390_r0, -1);
2692 s390_sll (code, s390_r0, 0, 16);
2693 s390_srl (code, s390_r0, 0, 16);
2694 if (ins->dreg != ins->sreg1) {
2695 s390_lr (code, ins->dreg, ins->sreg1);
2696 }
2697 s390_nr (code, ins->dreg, s390_r0);
2698 }
2699 break;
2700 case OP_COMPARE: {
2701 if ((ins->next) &&
2702 (((ins->next->opcode >= CEE_BNE_UN) &&
2703 (ins->next->opcode <= CEE_BLT_UN)) ||
2704 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
2705 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
2706 ((ins->next->opcode == OP_CLT_UN) ||
2707 (ins->next->opcode == OP_CGT_UN))))
2708 s390_clr (code, ins->sreg1, ins->sreg2);
2709 else
2710 s390_cr (code, ins->sreg1, ins->sreg2);
2711 }
2712 break;
2713 case OP_COMPARE_IMM: {
2714 if (s390_is_imm16 (ins->inst_imm)) {
2715 s390_lhi (code, s390_r0, ins->inst_imm);
2716 if ((ins->next) &&
2717 (((ins->next->opcode >= CEE_BNE_UN) &&
2718 (ins->next->opcode <= CEE_BLT_UN)) ||
2719 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
2720 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
2721 ((ins->next->opcode == OP_CLT_UN) ||
2722 (ins->next->opcode == OP_CGT_UN))))
2723 s390_clr (code, ins->sreg1, s390_r0);
2724 else
2725 s390_cr (code, ins->sreg1, s390_r0);
2726 }
2727 else {
2728 s390_basr (code, s390_r13, 0);
2729 s390_j (code, 4);
2730 s390_word (code, ins->inst_imm);
2731 if ((ins->next) &&
2732 (((ins->next->opcode >= CEE_BNE_UN) &&
2733 (ins->next->opcode <= CEE_BLT_UN)) ||
2734 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
2735 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
2736 ((ins->next->opcode == OP_CLT_UN) ||
2737 (ins->next->opcode == OP_CGT_UN))))
2738 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2739 else
2740 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2741 }
2742 }
2743 break;
2744 case CEE_BREAK: {
2745 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_arch_break);
2746 s390_brasl (code, s390_r14, 0);
2747 }
2748 break;
2749 case OP_ADDCC: {
2750 CHECK_SRCDST_COM;
2751 s390_alr (code, ins->dreg, src2);
2752 }
2753 break;
2754 case CEE_ADD: {
2755 CHECK_SRCDST_COM;
2756 s390_ar (code, ins->dreg, src2);
2757 }
2758 break;
2759 case OP_ADC: {
2760 CHECK_SRCDST_COM;
2761 s390_alcr (code, ins->dreg, src2);
2762 }
2763 break;
2764 case OP_ADD_IMM: {
2765 if (ins->dreg != ins->sreg1) {
2766 s390_lr (code, ins->dreg, ins->sreg1);
2767 }
2768 if ((ins->next) &&
2769 (ins->next->opcode == OP_ADC_IMM)) {
2770 s390_basr (code, s390_r13, 0);
2771 s390_j (code, 4);
2772 s390_word (code, ins->inst_imm);
2773 s390_a (code, ins->dreg, 0, s390_r13, 4);
2774 } else {
2775 if (s390_is_imm16 (ins->inst_imm)) {
2776 s390_ahi (code, ins->dreg, ins->inst_imm);
2777 } else {
2778 s390_basr (code, s390_r13, 0);
2779 s390_j (code, 4);
2780 s390_word (code, ins->inst_imm);
2781 s390_a (code, ins->dreg, 0, s390_r13, 4);
2782 }
2783 }
2784 }
2785 break;
2786 case OP_ADDCC_IMM: {
2787 if ((ins->next) &&
2788 (ins->next->opcode == OP_ADC_IMM)) {
2789 s390_basr (code, s390_r13, 0);
2790 s390_j (code, 4);
2791 s390_word (code, ins->inst_imm);
2792 if (ins->dreg != ins->sreg1) {
2793 s390_lr (code, ins->dreg, ins->sreg1);
2794 }
2795 s390_al (code, ins->dreg, 0, s390_r13, 4);
2796 } else {
2797 if (s390_is_imm16 (ins->inst_imm)) {
2798 if (ins->dreg != ins->sreg1) {
2799 s390_lr (code, ins->dreg, ins->sreg1);
2800 }
2801 s390_lhi (code, s390_r0, ins->inst_imm);
2802 s390_alcr (code, ins->dreg, s390_r0);
2803 } else {
2804 s390_basr (code, s390_r13, 0);
2805 s390_j (code, 4);
2806 s390_word (code, ins->inst_imm);
2807 if (ins->dreg != ins->sreg1) {
2808 s390_lr (code, ins->dreg, ins->sreg1);
2809 }
2810 s390_al (code, ins->dreg, 0, s390_r13, 4);
2811 }
2812 }
2813 }
2814 break;
2815 case OP_ADC_IMM: {
2816 if (s390_is_imm16 (ins->inst_imm)) {
2817 if (ins->dreg != ins->sreg1) {
2818 s390_lr (code, ins->dreg, ins->sreg1);
2819 }
2820 s390_lhi (code, s390_r0, ins->inst_imm);
2821 s390_alcr (code, ins->dreg, s390_r0);
2822 } else {
2823 s390_basr (code, s390_r13, 0);
2824 s390_j (code, 4);
2825 s390_word (code, ins->inst_imm);
2826 s390_l (code, s390_r13, 0, s390_r13, 4);
2827 s390_alcr (code, ins->dreg, s390_r13);
2828 }
2829 }
2830 break;
2831 case CEE_ADD_OVF: {
2832 CHECK_SRCDST_COM;
2833 s390_ar (code, ins->dreg, src2);
2834 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2835 }
2836 break;
2837 case CEE_ADD_OVF_UN: {
2838 CHECK_SRCDST_COM;
2839 s390_alr (code, ins->dreg, src2);
2840 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2841 }
2842 break;
2843 case OP_LADD: {
2844 short int *o[1];
2845 s390_alr (code, s390_r0, ins->sreg1);
2846 s390_jnc (code, 4);
2847 s390_ahi (code, s390_r1, 1);
2848 s390_ar (code, s390_r1, ins->sreg2);
2849 s390_lr (code, ins->dreg, s390_r0);
2850 s390_lr (code, ins->dreg+1, s390_r1);
2851 }
2852 break;
2853 case OP_LADD_OVF: {
2854 short int *o[1];
2855 s390_alr (code, s390_r0, ins->sreg1);
2856 s390_jnc (code, 0); CODEPTR(code, o[0]);
2857 s390_ahi (code, s390_r1, 1);
2858 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2859 PTRSLOT (code, o[0]);
2860 s390_ar (code, s390_r1, ins->sreg2);
2861 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2862 s390_lr (code, ins->dreg, s390_r0);
2863 s390_lr (code, ins->dreg+1, s390_r1);
2864 }
2865 break;
2866 case OP_LADD_OVF_UN: {
2867 s390_alr (code, s390_r0, ins->sreg1);
2868 s390_alcr (code, s390_r1, ins->sreg2);
2869 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2870 s390_lr (code, ins->dreg, s390_r0);
2871 s390_lr (code, ins->dreg+1, s390_r1);
2872 }
2873 break;
2874 case OP_ADD_OVF_CARRY: {
2875 CHECK_SRCDST_COM;
2876 s390_lhi (code, s390_r0, 0);
2877 s390_lr (code, s390_r1, s390_r0);
2878 s390_alcr (code, s390_r0, s390_r1);
2879 s390_ar (code, ins->dreg, src2);
2880 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2881 s390_ar (code, ins->dreg, s390_r0);
2882 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2883 }
2884 break;
2885 case OP_ADD_OVF_UN_CARRY: {
2886 CHECK_SRCDST_COM;
2887 s390_alcr (code, ins->dreg, src2);
2888 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2889 }
2890 break;
2891 case OP_SUBCC: {
2892 CHECK_SRCDST_NCOM;
2893 s390_slr (code, ins->dreg, src2);
2894 }
2895 break;
2896 case CEE_SUB: {
2897 CHECK_SRCDST_NCOM;
2898 s390_sr (code, ins->dreg, src2);
2899 }
2900 break;
2901 case OP_SBB: {
2902 CHECK_SRCDST_NCOM;
2903 s390_slbr (code, ins->dreg, src2);
2904 }
2905 break;
2906 case OP_SUBCC_IMM: {
2907 if (s390_is_imm16 (-ins->inst_imm)) {
2908 if (ins->dreg != ins->sreg1) {
2909 s390_lr (code, ins->dreg, ins->sreg1);
2910 }
2911 s390_lhi (code, s390_r0, ins->inst_imm);
2912 s390_slr (code, ins->dreg, s390_r0);
2913 } else {
2914 s390_basr (code, s390_r13, 0);
2915 s390_j (code, 4);
2916 s390_word (code, ins->inst_imm);
2917 if (ins->dreg != ins->sreg1) {
2918 s390_lr (code, ins->dreg, ins->sreg1);
2919 }
2920 s390_sl (code, ins->dreg, 0, s390_r13, 4);
2921 }
2922 }
2923 break;
2924 case OP_SUB_IMM: {
2925 if (s390_is_imm16 (-ins->inst_imm)) {
2926 if (ins->dreg != ins->sreg1) {
2927 s390_lr (code, ins->dreg, ins->sreg1);
2928 }
2929 s390_ahi (code, ins->dreg, -ins->inst_imm);
2930 } else {
2931 s390_basr (code, s390_r13, 0);
2932 s390_j (code, 4);
2933 s390_word (code, ins->inst_imm);
2934 if (ins->dreg != ins->sreg1) {
2935 s390_lr (code, ins->dreg, ins->sreg1);
2936 }
2937 s390_s (code, ins->dreg, 0, s390_r13, 4);
2938 }
2939 }
2940 break;
2941 case OP_SBB_IMM: {
2942 if (ins->dreg != ins->sreg1) {
2943 s390_lr (code, ins->dreg, ins->sreg1);
2944 }
2945 if (s390_is_imm16 (-ins->inst_imm)) {
2946 s390_lhi (code, s390_r0, ins->inst_imm);
2947 s390_slbr (code, ins->dreg, s390_r0);
2948 } else {
2949 s390_basr (code, s390_r13, 0);
2950 s390_j (code, 4);
2951 s390_word (code, ins->inst_imm);
2952 s390_slb (code, ins->dreg, 0, s390_r13, 4);
2953 }
2954 }
2955 break;
2956 case CEE_SUB_OVF: {
2957 CHECK_SRCDST_NCOM;
2958 s390_sr (code, ins->dreg, src2);
2959 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2960 }
2961 break;
2962 case CEE_SUB_OVF_UN: {
2963 CHECK_SRCDST_NCOM;
2964 s390_slr (code, ins->dreg, src2);
2965 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2966 }
2967 break;
2968 case OP_LSUB: {
2969 s390_lr (code, s390_r14, ins->sreg2);
2970 s390_slr (code, s390_r0, ins->sreg1);
2971 s390_jnl (code, 4);
2972 s390_ahi (code, s390_r14, 1);
2973 s390_sr (code, s390_r1, s390_r14);
2974 s390_lr (code, ins->dreg, s390_r0);
2975 s390_lr (code, ins->dreg+1, s390_r1);
2976 }
2977 break;
2978 case OP_LSUB_OVF: {
2979 short int *o[1];
2980 s390_lr (code, s390_r14, ins->sreg2);
2981 s390_slr (code, s390_r0, ins->sreg1);
2982 s390_jnl (code, 0); CODEPTR(code, o[0]);
2983 s390_ahi (code, s390_r14, 1);
2984 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2985 PTRSLOT (code, o[0]);
2986 s390_sr (code, s390_r1, s390_r14);
2987 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2988 s390_lr (code, ins->dreg, s390_r0);
2989 s390_lr (code, ins->dreg+1, s390_r1);
2990 }
2991 break;
2992 case OP_LSUB_OVF_UN: {
2993 s390_slr (code, s390_r0, ins->sreg1);
2994 s390_slbr (code, s390_r1, ins->sreg2);
2995 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
2996 s390_lr (code, ins->dreg, s390_r0);
2997 s390_lr (code, ins->dreg+1, s390_r1);
2998 }
2999 break;
3000 case OP_SUB_OVF_CARRY: {
3001 CHECK_SRCDST_NCOM;
3002 s390_lhi (code, s390_r0, 0);
3003 s390_lr (code, s390_r1, s390_r0);
3004 s390_slbr (code, s390_r0, s390_r1);
3005 s390_sr (code, ins->dreg, src2);
3006 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3007 s390_ar (code, ins->dreg, s390_r0);
3008 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3009 }
3010 break;
3011 case OP_SUB_OVF_UN_CARRY: {
3012 CHECK_SRCDST_NCOM;
3013 s390_slbr (code, ins->dreg, src2);
3014 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3015 }
3016 break;
3017 case CEE_AND: {
3018 if (ins->sreg1 == ins->dreg) {
3019 s390_nr (code, ins->dreg, ins->sreg2);
3020 }
3021 else {
3022 if (ins->sreg2 == ins->dreg) {
3023 s390_nr (code, ins->dreg, ins->sreg1);
3024 }
3025 else {
3026 s390_lr (code, ins->dreg, ins->sreg1);
3027 s390_nr (code, ins->dreg, ins->sreg2);
3028 }
3029 }
3030 }
3031 break;
3032 case OP_AND_IMM: {
3033 if (s390_is_imm16 (ins->inst_imm)) {
3034 s390_lhi (code, s390_r0, ins->inst_imm);
3035 if (ins->dreg != ins->sreg1) {
3036 s390_lr (code, ins->dreg, ins->sreg1);
3037 }
3038 s390_nr (code, ins->dreg, s390_r0);
3039 } else {
3040 s390_basr (code, s390_r13, 0);
3041 s390_j (code, 4);
3042 s390_word (code, ins->inst_imm);
3043 if (ins->dreg != ins->sreg1) {
3044 s390_lr (code, ins->dreg, ins->sreg1);
3045 }
3046 s390_n (code, ins->dreg, 0, s390_r13, 4);
3047 }
3048 }
3049 break;
3050 case CEE_DIV: {
3051 s390_lr (code, s390_r0, ins->sreg1);
3052 s390_srda (code, s390_r0, 0, 32);
3053 s390_dr (code, s390_r0, ins->sreg2);
3054 s390_lr (code, ins->dreg, s390_r1);
3055 }
3056 break;
3057 case CEE_DIV_UN: {
3058 s390_lr (code, s390_r0, ins->sreg1);
3059 s390_srdl (code, s390_r0, 0, 32);
3060 s390_dlr (code, s390_r0, ins->sreg2);
3061 s390_lr (code, ins->dreg, s390_r1);
3062 }
3063 break;
3064 case OP_DIV_IMM: {
3065 if (s390_is_imm16 (ins->inst_imm)) {
3066 s390_lhi (code, s390_r13, ins->inst_imm);
3067 s390_lr (code, s390_r0, ins->sreg1);
3068 } else {
3069 s390_basr (code, s390_r13, 0);
3070 s390_j (code, 4);
3071 s390_word (code, ins->inst_imm);
3072 s390_lr (code, s390_r0, ins->sreg1);
3073 s390_l (code, s390_r13, 0, s390_r13, 4);
3074 }
3075 s390_srda (code, s390_r0, 0, 32);
3076 s390_dr (code, s390_r0, s390_r13);
3077 s390_lr (code, ins->dreg, s390_r1);
3078 }
3079 break;
3080 case CEE_REM: {
3081 s390_lr (code, s390_r0, ins->sreg1);
3082 s390_srda (code, s390_r0, 0, 32);
3083 s390_dr (code, s390_r0, ins->sreg2);
3084 s390_lr (code, ins->dreg, s390_r0);
3085 break;
3086 case CEE_REM_UN:
3087 s390_lr (code, s390_r0, ins->sreg1);
3088 s390_srdl (code, s390_r0, 0, 32);
3089 s390_dlr (code, s390_r0, ins->sreg2);
3090 s390_lr (code, ins->dreg, s390_r0);
3091 }
3092 break;
3093 case OP_REM_IMM: {
3094 if (s390_is_imm16 (ins->inst_imm)) {
3095 s390_lhi (code, s390_r13, ins->inst_imm);
3096 s390_lr (code, s390_r0, ins->sreg1);
3097 } else {
3098 s390_basr (code, s390_r13, 0);
3099 s390_j (code, 4);
3100 s390_word (code, ins->inst_imm);
3101 s390_lr (code, s390_r0, ins->sreg1);
3102 s390_l (code, s390_r13, 0, s390_r13, 4);
3103 }
3104 s390_srda (code, s390_r0, 0, 32);
3105 s390_dr (code, s390_r0, s390_r13);
3106 s390_lr (code, ins->dreg, s390_r0);
3107 }
3108 break;
3109 case CEE_OR: {
3110 if (ins->sreg1 == ins->dreg) {
3111 s390_or (code, ins->dreg, ins->sreg2);
3112 }
3113 else {
3114 if (ins->sreg2 == ins->dreg) {
3115 s390_or (code, ins->dreg, ins->sreg1);
3116 }
3117 else {
3118 s390_lr (code, ins->dreg, ins->sreg1);
3119 s390_or (code, ins->dreg, ins->sreg2);
3120 }
3121 }
3122 }
3123 break;
3124 case OP_OR_IMM: {
3125 if (s390_is_imm16 (ins->inst_imm)) {
3126 s390_lhi (code, s390_r0, ins->inst_imm);
3127 if (ins->dreg != ins->sreg1) {
3128 s390_lr (code, ins->dreg, ins->sreg1);
3129 }
3130 s390_or (code, ins->dreg, s390_r0);
3131 } else {
3132 s390_basr (code, s390_r13, 0);
3133 s390_j (code, 4);
3134 s390_word (code, ins->inst_imm);
3135 if (ins->dreg != ins->sreg1) {
3136 s390_lr (code, ins->dreg, ins->sreg1);
3137 }
3138 s390_o (code, ins->dreg, 0, s390_r13, 4);
3139 }
3140 }
3141 break;
3142 case CEE_XOR: {
3143 if (ins->sreg1 == ins->dreg) {
3144 s390_xr (code, ins->dreg, ins->sreg2);
3145 }
3146 else {
3147 if (ins->sreg2 == ins->dreg) {
3148 s390_xr (code, ins->dreg, ins->sreg1);
3149 }
3150 else {
3151 s390_lr (code, ins->dreg, ins->sreg1);
3152 s390_xr (code, ins->dreg, ins->sreg2);
3153 }
3154 }
3155 }
3156 break;
3157 case OP_XOR_IMM: {
3158 if (s390_is_imm16 (ins->inst_imm)) {
3159 s390_lhi (code, s390_r0, ins->inst_imm);
3160 if (ins->dreg != ins->sreg1) {
3161 s390_lr (code, ins->dreg, ins->sreg1);
3162 }
3163 s390_xr (code, ins->dreg, s390_r0);
3164 } else {
3165 s390_basr (code, s390_r13, 0);
3166 s390_j (code, 4);
3167 s390_word (code, ins->inst_imm);
3168 if (ins->dreg != ins->sreg1) {
3169 s390_lr (code, ins->dreg, ins->sreg1);
3170 }
3171 s390_x (code, ins->dreg, 0, s390_r13, 4);
3172 }
3173 }
3174 break;
3175 case CEE_SHL: {
3176 CHECK_SRCDST_NCOM;
3177 s390_sll (code, ins->dreg, src2, 0);
3178 }
3179 break;
3180 case OP_SHL_IMM: {
3181 if (ins->sreg1 != ins->dreg) {
3182 s390_lr (code, ins->dreg, ins->sreg1);
3183 }
3184 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3185 }
3186 break;
3187 case CEE_SHR: {
3188 CHECK_SRCDST_NCOM;
3189 s390_sra (code, ins->dreg, src2, 0);
3190 }
3191 break;
3192 case OP_SHR_IMM: {
3193 if (ins->sreg1 != ins->dreg) {
3194 s390_lr (code, ins->dreg, ins->sreg1);
3195 }
3196 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3197 }
3198 break;
3199 case OP_SHR_UN_IMM: {
3200 if (ins->sreg1 != ins->dreg) {
3201 s390_lr (code, ins->dreg, ins->sreg1);
3202 }
3203 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3204 }
3205 break;
3206 case CEE_SHR_UN: {
3207 CHECK_SRCDST_NCOM;
3208 s390_srl (code, ins->dreg, src2, 0);
3209 }
3210 break;
3211 case CEE_NOT: {
3212 if (ins->sreg1 != ins->dreg) {
3213 s390_lr (code, ins->dreg, ins->sreg1);
3214 }
3215 s390_lhi (code, s390_r0, -1);
3216 s390_xr (code, ins->dreg, s390_r0);
3217 }
3218 break;
3219 case CEE_NEG: {
3220 s390_lcr (code, ins->dreg, ins->sreg1);
3221 }
3222 break;
3223 case CEE_MUL: {
3224 if (ins->sreg1 == ins->dreg) {
3225 s390_msr (code, ins->dreg, ins->sreg2);
3226 }
3227 else {
3228 if (ins->sreg2 == ins->dreg) {
3229 s390_msr (code, ins->dreg, ins->sreg1);
3230 }
3231 else {
3232 s390_lr (code, ins->dreg, ins->sreg1);
3233 s390_msr (code, ins->dreg, ins->sreg2);
3234 }
3235 }
3236 }
3237 break;
3238 case OP_MUL_IMM: {
3239 if (s390_is_imm16 (ins->inst_imm)) {
3240 s390_lhi (code, s390_r13, ins->inst_imm);
3241 } else {
3242 s390_basr (code, s390_r13, 0);
3243 s390_j (code, 4);
3244 s390_word (code, ins->inst_imm);
3245 // if (ins->dreg != ins->sreg1) {
3246 // s390_lr (code, ins->dreg, ins->sreg1);
3247 // }
3248 s390_l (code, s390_r13, 0, s390_r13, 4);
3249 }
3250 if (ins->dreg != ins->sreg1) {
3251 s390_lr (code, ins->dreg, ins->sreg1);
3252 }
3253 s390_msr (code, ins->dreg, s390_r13);
3254 }
3255 break;
3256 case CEE_MUL_OVF: {
3257 short int *o[2];
3258 s390_ltr (code, s390_r1, ins->sreg1);
3259 s390_jz (code, 0); CODEPTR(code, o[0]);
3260 s390_ltr (code, s390_r0, ins->sreg2);
3261 s390_jnz (code, 6);
3262 s390_lhi (code, s390_r1, 0);
3263 s390_j (code, 0); CODEPTR(code, o[1]);
3264 s390_xr (code, s390_r0, s390_r1);
3265 s390_msr (code, s390_r1, ins->sreg2);
3266 s390_xr (code, s390_r0, s390_r1);
3267 s390_srl (code, s390_r0, 0, 31);
3268 s390_ltr (code, s390_r0, s390_r0);
3269 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3270 PTRSLOT (code, o[0]);
3271 PTRSLOT (code, o[1]);
3272 s390_lr (code, ins->dreg, s390_r1);
3273 }
3274 break;
3275 case CEE_MUL_OVF_UN: {
3276 s390_lhi (code, s390_r0, 0);
3277 s390_lr (code, s390_r1, ins->sreg1);
3278 s390_mlr (code, s390_r0, ins->sreg2);
3279 s390_ltr (code, s390_r0, s390_r0);
3280 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3281 s390_lr (code, ins->dreg, s390_r1);
3282 }
3283 break;
3284 case OP_LMUL: {
3285 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3286 s390_srda (code, s390_r0, 0, 32);
3287 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3288 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3289 s390_srl (code, s390_r0, 0, 31);
3290 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3291 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3292 s390_srl (code, s390_r13, 0, 31);
3293 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3294 s390_ar (code, s390_r0, s390_r13);
3295 s390_st (code, s390_r0, 0, ins->dreg, 0);
3296 s390_st (code, s390_r1, 0, ins->dreg, 4);
3297 }
3298 break;
3299 case OP_ICONST:
3300 case OP_SETREGIMM: {
3301 if (s390_is_imm16(ins->inst_c0)) {
3302 s390_lhi (code, ins->dreg, ins->inst_c0);
3303 } else {
3304 s390_basr (code, s390_r13, 0);
3305 s390_j (code, 4);
3306 s390_word (code, ins->inst_c0);
3307 s390_l (code, ins->dreg, 0, s390_r13, 4);
3308 }
3309 }
3310 break;
3311 case OP_AOTCONST: {
3312 s390_basr (code, s390_r13, 0);
3313 s390_j (code, 4);
3314 mono_add_patch_info (cfg, code - cfg->native_code,
3315 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3316 s390_word (code, 0);
3317 s390_l (code,ins->dreg, 0, s390_r13, 4);
3318 }
3319 break;
3320 case CEE_CONV_I4:
3321 case CEE_CONV_U4:
3322 case OP_MOVE:
3323 case OP_SETREG: {
3324 if (ins->dreg != ins->sreg1) {
3325 s390_lr (code, ins->dreg, ins->sreg1);
3326 }
3327 }
3328 break;
3329 case OP_SETLRET: {
3330 int saved = ins->sreg1;
3331 if (ins->sreg1 == s390_r2) {
3332 s390_lr (code, s390_r0, ins->sreg1);
3333 saved = s390_r0;
3334 }
3335 if (ins->sreg2 != s390_r2)
3336 s390_lr (code, s390_r2, ins->sreg2);
3337 if (saved != s390_r3)
3338 s390_lr (code, s390_r3, saved);
3339 break;
3340 }
3341 case OP_SETFREG:
3342 case OP_FMOVE: {
3343 if (ins->dreg != ins->sreg1) {
3344 s390_ldr (code, ins->dreg, ins->sreg1);
3345 }
3346 }
3347 break;
3348 case OP_S390_SETF4RET: {
3349 s390_ledbr (code, ins->dreg, ins->sreg1);
3350 }
3351 break;
3352 case OP_TLS_GET: {
3353 if (s390_is_imm16 (ins->inst_offset)) {
3354 s390_lhi (code, s390_r13, ins->inst_offset);
3355 } else {
3356 s390_bras (code, s390_r13, 0);
3357 s390_j (code, 4);
3358 s390_word (code, ins->inst_offset);
3359 s390_l (code, s390_r13, 0, s390_r13, 4);
3360 }
3361 s390_ear (code, s390_r1, 0);
3362 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
3363 }
3364 break;
3365 case OP_FCONV_TO_R4: {
3366 NOT_IMPLEMENTED("OP_FCONV_TO_R4");
3367 if ((ins->next) &&
3368 (ins->next->opcode != OP_FMOVE) &&
3369 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3370 s390_ledbr (code, ins->dreg, ins->sreg1);
3371 }
3372 break;
3373 case CEE_JMP: {
3374 if (cfg->method->save_lmf)
3375 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3376
3377 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3378 code = emit_load_volatile_registers(code, cfg);
3379 }
3380
3381 code = backUpStackPtr(cfg, code, STK_BASE);
3382 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3383 mono_add_patch_info (cfg, code - cfg->native_code,
3384 MONO_PATCH_INFO_METHOD_JUMP,
3385 ins->inst_p0);
3386 s390_jcl (code, S390_CC_UN, 0);
3387 }
3388 break;
3389 case OP_CHECK_THIS: {
3390 /* ensure ins->sreg1 is not NULL */
3391 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3392 }
3393 break;
3394 case OP_ARGLIST: {
3395 int offset = cfg->sig_cookie + cfg->stack_usage;
3396
3397 if (s390_is_imm16 (offset))
3398 s390_lhi (code, s390_r0, offset);
3399 else {
3400 s390_basr (code, s390_r13, 0);
3401 s390_j (code, 4);
3402 s390_word (code, offset);
3403 s390_l (code, s390_r0, 0, s390_r13, 0);
3404 }
3405 s390_ar (code, s390_r0, cfg->frame_reg);
3406 s390_st (code, s390_r0, 0, ins->sreg1, 0);
3407 }
3408 break;
3409 case OP_FCALL: {
3410 call = (MonoCallInst*)ins;
3411 if (ins->flags & MONO_INST_HAS_METHOD)
3412 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3413 call->method);
3414 else
3415 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3416 call->fptr);
3417 s390_brasl (code, s390_r14, 0);
3418 if (call->signature->ret->type == MONO_TYPE_R4)
3419 s390_ldebr (code, s390_f0, s390_f0);
3420 }
3421 break;
3422 case OP_LCALL:
3423 case OP_VCALL:
3424 case OP_VOIDCALL:
3425 case CEE_CALL: {
3426 call = (MonoCallInst*)ins;
3427 if (ins->flags & MONO_INST_HAS_METHOD)
3428 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3429 else
3430 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3431 s390_brasl (code, s390_r14, 0);
3432 }
3433 break;
3434 case OP_FCALL_REG: {
3435 call = (MonoCallInst*)ins;
3436 s390_lr (code, s390_r1, ins->sreg1);
3437 s390_basr (code, s390_r14, s390_r1);
3438 if (call->signature->ret->type == MONO_TYPE_R4)
3439 s390_ldebr (code, s390_f0, s390_f0);
3440 }
3441 break;
3442 case OP_LCALL_REG:
3443 case OP_VCALL_REG:
3444 case OP_VOIDCALL_REG:
3445 case OP_CALL_REG: {
3446 s390_lr (code, s390_r1, ins->sreg1);
3447 s390_basr (code, s390_r14, s390_r1);
3448 }
3449 break;
3450 case OP_FCALL_MEMBASE: {
3451 call = (MonoCallInst*)ins;
3452 s390_l (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3453 s390_basr (code, s390_r14, s390_r1);
3454 if (call->signature->ret->type == MONO_TYPE_R4)
3455 s390_ldebr (code, s390_f0, s390_f0);
3456 }
3457 break;
3458 case OP_LCALL_MEMBASE:
3459 case OP_VCALL_MEMBASE:
3460 case OP_VOIDCALL_MEMBASE:
3461 case OP_CALL_MEMBASE: {
3462 s390_l (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3463 s390_basr (code, s390_r14, s390_r1);
3464 }
3465 break;
3466 case OP_OUTARG:
3467 g_assert_not_reached ();
3468 break;
3469 case OP_LOCALLOC: {
3470 /*------------------------------------------*/
3471 /* To allocate space on the stack we have */
3472 /* to allow room for parameters passed in */
3473 /* calls, the backchain pointer and round */
3474 /* it to our stack alignment requirements */
3475 /*------------------------------------------*/
3476 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3477 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3478 s390_lr (code, s390_r1, ins->sreg1);
3479 if (ins->flags & MONO_INST_INIT)
3480 s390_lr (code, s390_r0, ins->sreg1);
3481 s390_ahi (code, s390_r1, 14);
3482 s390_srl (code, s390_r1, 0, 3);
3483 s390_sll (code, s390_r1, 0, 3);
3484 if (cfg->method->save_lmf) {
3485 /*----------------------------------*/
3486 /* we have to adjust lmf ebp value */
3487 /*----------------------------------*/
3488 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3489
3490 s390_lr (code, s390_r13, cfg->frame_reg);
3491 if (s390_is_uimm16(lmfOffset))
3492 s390_ahi (code, s390_r13, lmfOffset);
3493 else {
3494 s390_basr (code, s390_r14, 0);
3495 s390_j (code, 4);
3496 s390_word (code, lmfOffset);
3497 s390_a (code, s390_r13, 0, s390_r14, 4);
3498 }
3499 s390_lr (code, s390_r14, STK_BASE);
3500 s390_sr (code, s390_r14, s390_r1);
3501 s390_st (code, s390_r14, 0, s390_r13,
3502 G_STRUCT_OFFSET(MonoLMF, ebp));
3503 }
3504 s390_l (code, s390_r13, 0, STK_BASE, 0);
3505 s390_sr (code, STK_BASE, s390_r1);
3506 s390_st (code, s390_r13, 0, STK_BASE, 0);
3507 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3508 s390_srl (code, ins->dreg, 0, 3);
3509 s390_sll (code, ins->dreg, 0, 3);
3510 if (ins->flags & MONO_INST_INIT) {
3511 s390_lr (code, s390_r1, s390_r0);
3512 s390_lr (code, s390_r0, ins->dreg);
3513 s390_lr (code, s390_r14, s390_r12);
3514 s390_lhi (code, s390_r13, 0);
3515 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3516 s390_jo (code, -2);
3517 s390_lr (code, s390_r12, s390_r14);
3518 }
3519 }
3520 break;
3521 case CEE_RET: {
3522 s390_br (code, s390_r14);
3523 }
3524 break;
3525 case CEE_THROW: {
3526 s390_lr (code, s390_r2, ins->sreg1);
3527 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3528 (gpointer)"mono_arch_throw_exception");
3529 s390_brasl (code, s390_r14, 0);
3530 }
3531 break;
3532 case OP_RETHROW: {
3533 s390_lr (code, s390_r2, ins->sreg1);
3534 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3535 (gpointer)"mono_arch_rethrow_exception");
3536 s390_brasl (code, s390_r14, 0);
3537 }
3538 break;
3539 case OP_START_HANDLER: {
3540 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
3541 s390_st (code, s390_r14, 0,
3542 ins->inst_left->inst_basereg,
3543 ins->inst_left->inst_offset);
3544 } else {
3545 s390_basr (code, s390_r13, 0);
3546 s390_j (code, 4);
3547 s390_word (code, ins->inst_left->inst_offset);
3548 s390_l (code, s390_r13, 0, s390_r13, 4);
3549 s390_st (code, s390_r14, s390_r13,
3550 ins->inst_left->inst_basereg, 0);
3551 }
3552 }
3553 break;
3554 case OP_ENDFILTER: {
3555 if (ins->sreg1 != s390_r2)
3556 s390_lr (code, s390_r2, ins->sreg1);
3557 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
3558 s390_l (code, s390_r14, 0, ins->inst_left->inst_basereg,
3559 ins->inst_left->inst_offset);
3560 } else {
3561 s390_basr (code, s390_r13, 0);
3562 s390_j (code, 4);
3563 s390_word (code, ins->inst_left->inst_offset);
3564 s390_l (code, s390_r13, 0, s390_r13, 4);
3565 s390_l (code, s390_r14, s390_r13,
3566 ins->inst_left->inst_basereg, 0);
3567 }
3568 s390_br (code, s390_r14);
3569 }
3570 break;
3571 case CEE_ENDFINALLY: {
3572 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
3573 s390_l (code, s390_r14, 0, ins->inst_left->inst_basereg,
3574 ins->inst_left->inst_offset);
3575 } else {
3576 s390_basr (code, s390_r13, 0);
3577 s390_j (code, 4);
3578 s390_word (code, ins->inst_left->inst_offset);
3579 s390_l (code, s390_r13, 0, s390_r13, 4);
3580 s390_l (code, s390_r14, s390_r13,
3581 ins->inst_left->inst_basereg, 0);
3582 }
3583 s390_br (code, s390_r14);
3584 }
3585 break;
3586 case OP_CALL_HANDLER: {
3587 mono_add_patch_info (cfg, code-cfg->native_code,
3588 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3589 s390_brasl (code, s390_r14, 0);
3590 }
3591 break;
3592 case OP_LABEL: {
3593 ins->inst_c0 = code - cfg->native_code;
3594 }
3595 break;
3596 case CEE_BR:
3597 EMIT_UNCOND_BRANCH(ins);
3598 break;
3599 case OP_BR_REG: {
3600 s390_br (code, ins->sreg1);
3601 }
3602 break;
3603 case OP_CEQ: {
3604 s390_lhi (code, ins->dreg, 1);
3605 s390_jz (code, 4);
3606 s390_lhi (code, ins->dreg, 0);
3607 }
3608 break;
3609 case OP_CLT: {
3610 s390_lhi (code, ins->dreg, 1);
3611 s390_jl (code, 4);
3612 s390_lhi (code, ins->dreg, 0);
3613 }
3614 break;
3615 case OP_CLT_UN: {
3616 s390_lhi (code, ins->dreg, 1);
3617 s390_jlo (code, 4);
3618 s390_lhi (code, ins->dreg, 0);
3619 }
3620 break;
3621 case OP_CGT: {
3622 s390_lhi (code, ins->dreg, 1);
3623 s390_jh (code, 4);
3624 s390_lhi (code, ins->dreg, 0);
3625 }
3626 break;
3627 case OP_CGT_UN: {
3628 s390_lhi (code, ins->dreg, 1);
3629 s390_jho (code, 4);
3630 s390_lhi (code, ins->dreg, 0);
3631 }
3632 break;
3633 case OP_COND_EXC_EQ:
3634 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3635 break;
3636 case OP_COND_EXC_NE_UN:
3637 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3638 break;
3639 case OP_COND_EXC_LT:
3640 case OP_COND_EXC_LT_UN:
3641 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3642 break;
3643 case OP_COND_EXC_GT:
3644 case OP_COND_EXC_GT_UN:
3645 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3646 break;
3647 case OP_COND_EXC_GE:
3648 case OP_COND_EXC_GE_UN:
3649 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3650 break;
3651 case OP_COND_EXC_LE:
3652 case OP_COND_EXC_LE_UN:
3653 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3654 break;
3655 case OP_COND_EXC_OV:
3656 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3657 break;
3658 case OP_COND_EXC_NO:
3659 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3660 break;
3661 case OP_COND_EXC_C:
3662 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3663 break;
3664 case OP_COND_EXC_NC:
3665 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3666 break;
3667 case CEE_BEQ:
3668 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3669 break;
3670 case CEE_BNE_UN:
3671 EMIT_COND_BRANCH (ins, S390_CC_NE);
3672 break;
3673 case CEE_BLT:
3674 case CEE_BLT_UN:
3675 EMIT_COND_BRANCH (ins, S390_CC_LT);
3676 break;
3677 case CEE_BGT:
3678 case CEE_BGT_UN:
3679 EMIT_COND_BRANCH (ins, S390_CC_GT);
3680 break;
3681 case CEE_BGE:
3682 case CEE_BGE_UN:
3683 EMIT_COND_BRANCH (ins, S390_CC_GE);
3684 break;
3685 case CEE_BLE:
3686 case CEE_BLE_UN:
3687 EMIT_COND_BRANCH (ins, S390_CC_LE);
3688 break;
3689
3690 /* floating point opcodes */
3691 case OP_R8CONST: {
3692 if (*((float *) ins->inst_p0) == 0) {
3693 s390_lzdr (code, ins->dreg);
3694 } else {
3695 s390_basr (code, s390_r13, 0);
3696 s390_j (code, 4);
3697 s390_word (code, ins->inst_p0);
3698 s390_l (code, s390_r13, 0, s390_r13, 4);
3699 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3700 }
3701 }
3702 break;
3703 case OP_R4CONST: {
3704 if (*((float *) ins->inst_p0) == 0) {
3705 s390_lzdr (code, ins->dreg);
3706 } else {
3707 s390_basr (code, s390_r13, 0);
3708 s390_j (code, 4);
3709 s390_word (code, ins->inst_p0);
3710 s390_l (code, s390_r13, 0, s390_r13, 4);
3711 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3712 }
3713 }
3714 break;
3715 case OP_STORER8_MEMBASE_REG: {
3716 if (s390_is_uimm12(ins->inst_offset)) {
3717 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3718 } else {
3719 s390_basr (code, s390_r13, 0);
3720 s390_j (code, 4);
3721 s390_word (code, ins->inst_offset);
3722 s390_l (code, s390_r13, 0, s390_r13, 4);
3723 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3724 }
3725 }
3726 break;
3727 case OP_LOADR8_MEMBASE: {
3728 if (s390_is_uimm12(ins->inst_offset)) {
3729 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3730 } else {
3731 s390_basr (code, s390_r13, 0);
3732 s390_j (code, 4);
3733 s390_word (code, ins->inst_offset);
3734 s390_l (code, s390_r13, 0, s390_r13, 4);
3735 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3736 }
3737 }
3738 break;
3739 case OP_STORER4_MEMBASE_REG: {
3740 if (s390_is_uimm12(ins->inst_offset)) {
3741 s390_ledbr(code, s390_f15, ins->sreg1);
3742 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
3743 } else {
3744 s390_basr (code, s390_r13, 0);
3745 s390_j (code, 4);
3746 s390_word (code, ins->inst_offset);
3747 s390_l (code, s390_r13, 0, s390_r13, 4);
3748 s390_ledbr(code, s390_f15, ins->sreg1);
3749 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
3750 }
3751 }
3752 break;
3753 case OP_LOADR4_MEMBASE: {
3754 if (s390_is_uimm12(ins->inst_offset)) {
3755 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3756 } else {
3757 s390_basr (code, s390_r13, 0);
3758 s390_j (code, 4);
3759 s390_word (code, ins->inst_offset);
3760 s390_l (code, s390_r13, 0, s390_r13, 4);
3761 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3762 }
3763 }
3764 break;
3765 case CEE_CONV_R_UN: {
3766 s390_cdfbr (code, ins->dreg, ins->sreg1);
3767 s390_ltr (code, ins->sreg1, ins->sreg1);
3768 s390_jnl (code, 12);
3769 s390_basr (code, s390_r13, 0);
3770 s390_j (code, 6);
3771 s390_word (code, 0x41f00000);
3772 s390_word (code, 0);
3773 s390_adb (code, ins->dreg, 0, s390_r13, 4);
3774 }
3775 break;
3776 case CEE_CONV_R4: {
3777 s390_cdfbr (code, ins->dreg, ins->sreg1);
3778 }
3779 break;
3780 case CEE_CONV_R8: {
3781 s390_cdfbr (code, ins->dreg, ins->sreg1);
3782 }
3783 break;
3784 case OP_FCONV_TO_I1:
3785 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
3786 break;
3787 case OP_FCONV_TO_U1:
3788 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
3789 break;
3790 case OP_FCONV_TO_I2:
3791 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
3792 break;
3793 case OP_FCONV_TO_U2:
3794 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
3795 break;
3796 case OP_FCONV_TO_I4:
3797 case OP_FCONV_TO_I:
3798 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
3799 break;
3800 case OP_FCONV_TO_U4:
3801 case OP_FCONV_TO_U:
3802 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
3803 break;
3804 case OP_FCONV_TO_I8:
3805 case OP_FCONV_TO_U8:
3806 g_assert_not_reached ();
3807 /* Implemented as helper calls */
3808 break;
3809 case OP_LCONV_TO_R_UN:
3810 g_assert_not_reached ();
3811 /* Implemented as helper calls */
3812 break;
3813 case OP_LCONV_TO_OVF_I: {
3814 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
3815 short int *o[5];
3816 s390_ltr (code, ins->sreg1, ins->sreg1);
3817 s390_jnl (code, 0); CODEPTR(code, o[0]);
3818 s390_ltr (code, ins->sreg2, ins->sreg2);
3819 s390_jnl (code, 0); CODEPTR(code, o[1]);
3820 s390_lhi (code, s390_r13, -1);
3821 s390_cr (code, ins->sreg2, s390_r13);
3822 s390_jnz (code, 0); CODEPTR(code, o[2]);
3823 if (ins->dreg != ins->sreg1)
3824 s390_lr (code, ins->dreg, ins->sreg1);
3825 s390_j (code, 0); CODEPTR(code, o[3]);
3826 PTRSLOT(code, o[0]);
3827 s390_ltr (code, ins->sreg2, ins->sreg2);
3828 s390_jz (code, 0); CODEPTR(code, o[4]);
3829 PTRSLOT(code, o[1]);
3830 PTRSLOT(code, o[2]);
3831 mono_add_patch_info (cfg, code - cfg->native_code,
3832 MONO_PATCH_INFO_EXC, "OverflowException");
3833 s390_brasl (code, s390_r14, 0);
3834 PTRSLOT(code, o[3]);
3835 PTRSLOT(code, o[4]);
3836 }
3837 break;
3838 case OP_SQRT: {
3839 s390_sqdbr (code, ins->dreg, ins->sreg1);
3840 }
3841 break;
3842 case OP_FADD: {
3843 CHECK_SRCDST_COM_F;
3844 s390_adbr (code, ins->dreg, src2);
3845 }
3846 break;
3847 case OP_FSUB: {
3848 CHECK_SRCDST_NCOM_F;
3849 s390_sdbr (code, ins->dreg, src2);
3850 }
3851 break;
3852 case OP_FMUL: {
3853 CHECK_SRCDST_COM_F;
3854 s390_mdbr (code, ins->dreg, src2);
3855 }
3856 break;
3857 case OP_FDIV: {
3858 CHECK_SRCDST_NCOM_F;
3859 s390_ddbr (code, ins->dreg, src2);
3860 }
3861 break;
3862 case OP_FNEG: {
3863 s390_lcdbr (code, ins->dreg, ins->sreg1);
3864 }
3865 break;
3866 case OP_FREM: {
3867 CHECK_SRCDST_NCOM_F;
3868 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
3869 }
3870 break;
3871 case OP_FCOMPARE: {
3872 s390_cdbr (code, ins->sreg1, ins->sreg2);
3873 }
3874 break;
3875 case OP_FCEQ: {
3876 s390_cdbr (code, ins->sreg1, ins->sreg2);
3877 s390_lhi (code, ins->dreg, 1);
3878 s390_je (code, 4);
3879 s390_lhi (code, ins->dreg, 0);
3880 }
3881 break;
3882 case OP_FCLT: {
3883 s390_cdbr (code, ins->sreg1, ins->sreg2);
3884 s390_lhi (code, ins->dreg, 1);
3885 s390_jl (code, 4);
3886 s390_lhi (code, ins->dreg, 0);
3887 }
3888 break;
3889 case OP_FCLT_UN: {
3890 s390_cdbr (code, ins->sreg1, ins->sreg2);
3891 s390_lhi (code, ins->dreg, 1);
3892 s390_jlo (code, 4);
3893 s390_lhi (code, ins->dreg, 0);
3894 }
3895 break;
3896 case OP_FCGT: {
3897 s390_cdbr (code, ins->sreg1, ins->sreg2);
3898 s390_lhi (code, ins->dreg, 1);
3899 s390_jh (code, 4);
3900 s390_lhi (code, ins->dreg, 0);
3901 }
3902 break;
3903 case OP_FCGT_UN: {
3904 s390_cdbr (code, ins->sreg1, ins->sreg2);
3905 s390_lhi (code, ins->dreg, 1);
3906 s390_jho (code, 4);
3907 s390_lhi (code, ins->dreg, 0);
3908 }
3909 break;
3910 case OP_FBEQ:
3911 EMIT_COND_BRANCH (ins, S390_CC_EQ|S390_CC_OV);
3912 break;
3913 case OP_FBNE_UN:
3914 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
3915 break;
3916 case OP_FBLT:
3917 EMIT_COND_BRANCH (ins, S390_CC_LT);
3918 break;
3919 case OP_FBLT_UN:
3920 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
3921 break;
3922 case OP_FBGT:
3923 EMIT_COND_BRANCH (ins, S390_CC_GT);
3924 break;
3925 case OP_FBGT_UN:
3926 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
3927 break;
3928 case OP_FBGE:
3929 EMIT_COND_BRANCH (ins, S390_CC_GE);
3930 break;
3931 case OP_FBGE_UN:
3932 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
3933 break;
3934 case OP_FBLE:
3935 EMIT_COND_BRANCH (ins, S390_CC_LE);
3936 break;
3937 case OP_FBLE_UN:
3938 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
3939 break;
3940 case CEE_CKFINITE: {
3941 short *o;
3942 s390_lhi (code, s390_r13, 0x7f);
3943 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
3944 s390_jz (code, 0); CODEPTR(code, o);
3945 mono_add_patch_info (cfg, code - cfg->native_code,
3946 MONO_PATCH_INFO_EXC, "ArithmeticException");
3947 s390_brasl (code, s390_r14,0);
3948 PTRSLOT(code, o);
3949 }
3950 break;
3951 case OP_S390_MOVE: {
3952 if (ins->backend.size > 0) {
3953 if (ins->backend.size <= 256) {
3954 s390_mvc (code, ins->backend.size, ins->dreg,
3955 ins->inst_offset, ins->sreg1, ins->inst_imm);
3956 } else {
3957 s390_lr (code, s390_r0, ins->dreg);
3958 if (s390_is_imm16 (ins->inst_offset)) {
3959 s390_ahi (code, s390_r0, ins->inst_offset);
3960 } else {
3961 s390_basr (code, s390_r13, 0);
3962 s390_j (code, 4);
3963 s390_word (code, ins->inst_offset);
3964 s390_a (code, s390_r0, 0, s390_r13, 4);
3965 }
3966 s390_lr (code, s390_r14, s390_r12);
3967 s390_lr (code, s390_r12, ins->sreg1);
3968 if (s390_is_imm16 (ins->inst_imm)) {
3969 s390_ahi (code, s390_r12, ins->inst_imm);
3970 } else {
3971 s390_basr (code, s390_r13, 0);
3972 s390_j (code, 4);
3973 s390_word (code, ins->inst_imm);
3974 s390_a (code, s390_r12, 0, s390_r13, 4);
3975 }
3976 s390_lr (code, s390_r1, ins->sreg1);
3977 s390_lr (code, s390_r13, s390_r1);
3978 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3979 s390_jo (code, -2);
3980 s390_lr (code, s390_r12, s390_r14);
3981 }
3982 }
3983 }
3984 break;
3985 case OP_ATOMIC_ADD_I4: {
3986 s390_lr (code, s390_r1, ins->sreg2);
3987 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3988 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3989 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
3990 s390_jnz (code, -7);
3991 s390_lr (code, ins->dreg, s390_r1);
3992 }
3993 break;
3994 case OP_ATOMIC_ADD_NEW_I4: {
3995 s390_lr (code, s390_r1, ins->sreg2);
3996 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3997 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3998 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
3999 s390_jnz (code, -7);
4000 s390_lr (code, ins->dreg, s390_r1);
4001 }
4002 break;
4003 case OP_ATOMIC_EXCHANGE_I4: {
4004 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4005 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4006 s390_jnz (code, -4);
4007 s390_lr (code, ins->dreg, s390_r0);
4008 }
4009 break;
4010 case OP_S390_BKCHAIN: {
4011 s390_lr (code, ins->dreg, ins->sreg1);
4012 if (s390_is_imm16 (cfg->stack_offset)) {
4013 s390_ahi (code, ins->dreg, cfg->stack_offset);
4014 } else {
4015 s390_basr (code, s390_r13, 0);
4016 s390_j (code, 6);
4017 s390_word (code, cfg->stack_offset);
4018 s390_a (code, ins->dreg, 0, s390_r13, 4);
4019 }
4020 }
4021 case OP_MEMORY_BARRIER: {
4022 }
4023 break;
4024 default:
4025 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4026 g_assert_not_reached ();
4027 }
4028
4029 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4030 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4031 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4032 g_assert_not_reached ();
4033 }
4034
4035 cpos += max_len;
4036
4037 last_ins = ins;
4038 last_offset = offset;
4039
4040 ins = ins->next;
4041 }
4042
4043 cfg->code_len = code - cfg->native_code;
4044 }
4045
4046 /*========================= End of Function ========================*/
4047
4048 /*------------------------------------------------------------------*/
4049 /* */
4050 /* Name - mono_arch_register_lowlevel_calls */
4051 /* */
4052 /* Function - Register routines to help with --trace operation. */
4053 /* */
4054 /*------------------------------------------------------------------*/
4055
4056 void
4057 mono_arch_register_lowlevel_calls (void)
4058 {
4059 mono_register_jit_icall (mono_arch_break, "mono_arch_break", NULL, TRUE);
4060 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4061 }
4062
4063 /*========================= End of Function ========================*/
4064
4065 /*------------------------------------------------------------------*/
4066 /* */
4067 /* Name - mono_arch_patch_code */
4068 /* */
4069 /* Function - Process the patch data created during the */
4070 /* instruction build process. This resolves jumps, */
4071 /* calls, variables etc. */
4072 /* */
4073 /*------------------------------------------------------------------*/
4074
4075 static void
4076 mono_arch_break(void) {
4077 }
4078
4079 /*========================= End of Function ========================*/
4080
4081 /*------------------------------------------------------------------*/
4082 /* */
4083 /* Name - mono_arch_patch_code */
4084 /* */
4085 /* Function - Process the patch data created during the */
4086 /* instruction build process. This resolves jumps, */
4087 /* calls, variables etc. */
4088 /* */
4089 /*------------------------------------------------------------------*/
4090
4091 void
4092 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4093 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4094 {
4095 MonoJumpInfo *patch_info;
4096
4097 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4098 unsigned char *ip = patch_info->ip.i + code;
4099 gconstpointer target = NULL;
4100
4101 target = mono_resolve_patch_target (method, domain, code,
4102 patch_info, run_cctors);
4103
4104 switch (patch_info->type) {
4105 case MONO_PATCH_INFO_IP:
4106 case MONO_PATCH_INFO_EXC_NAME:
4107 case MONO_PATCH_INFO_LDSTR:
4108 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4109 case MONO_PATCH_INFO_LDTOKEN:
4110 case MONO_PATCH_INFO_EXC:
4111 continue;
4112 case MONO_PATCH_INFO_SWITCH:
4113 /*----------------------------------*/
4114 /* ip points at the basr r13,0/j +4 */
4115 /* instruction the vtable value */
4116 /* follows this (i.e. ip+6) */
4117 /*----------------------------------*/
4118 *((gconstpointer *)(ip+6)) = target;
4119 target = NULL;
4120 continue;
4121 case MONO_PATCH_INFO_METHODCONST:
4122 case MONO_PATCH_INFO_CLASS:
4123 case MONO_PATCH_INFO_IMAGE:
4124 case MONO_PATCH_INFO_FIELD:
4125 case MONO_PATCH_INFO_IID:
4126 target = S390_RELATIVE(target, ip);
4127 continue;
4128 case MONO_PATCH_INFO_R4:
4129 case MONO_PATCH_INFO_R8:
4130 case MONO_PATCH_INFO_METHOD_REL:
4131 g_assert_not_reached ();
4132 continue;
4133 default:
4134 target = S390_RELATIVE(target, ip);
4135 ip += 2;
4136 }
4137 s390_patch (ip, (guint32) target);
4138 }
4139 }
4140
4141 /*========================= End of Function ========================*/
4142
4143 /*------------------------------------------------------------------*/
4144 /* */
4145 /* Name - emit_load_volatile_registers */
4146 /* */
4147 /* Function - Create the instruction sequence for loading the */
4148 /* parameter registers for use with the 'tail' op. */
4149 /* */
4150 /* The register loading operations performed here */
4151 /* are the mirror of the store operations performed */
4152 /* in mono_arch_emit_prolog and need to be kept in */
4153 /* synchronization with it. */
4154 /* */
4155 /*------------------------------------------------------------------*/
4156
4157 guint8 *
4158 emit_load_volatile_registers(guint8 * code, MonoCompile *cfg)
4159 {
4160 MonoMethod *method = cfg->method;
4161 MonoMethodSignature *sig;
4162 MonoInst *inst;
4163 int pos, i;
4164 CallInfo *cinfo;
4165 size_data sz;
4166
4167 sig = mono_method_signature (method);
4168 pos = 0;
4169
4170 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4171
4172 if (cinfo->struct_ret) {
4173 ArgInfo *ainfo = &cinfo->ret;
4174 inst = cfg->ret;
4175 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4176 }
4177
4178 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4179 ArgInfo *ainfo = cinfo->args + i;
4180 inst = cfg->varinfo [pos];
4181
4182 if (inst->opcode == OP_REGVAR) {
4183 if (ainfo->regtype == RegTypeGeneral)
4184 s390_lr (code, ainfo->reg, inst->dreg);
4185 else if (ainfo->regtype == RegTypeFP) {
4186 if (inst->dreg != ainfo->reg) {
4187 if (ainfo->size == 4) {
4188 s390_ldebr (code, ainfo->reg, inst->dreg);
4189 } else {
4190 s390_ldr (code, ainfo->reg, inst->dreg);
4191 }
4192 }
4193 }
4194 else if (ainfo->regtype == RegTypeBase) {
4195 } else
4196 g_assert_not_reached ();
4197 } else {
4198 if (ainfo->regtype == RegTypeGeneral) {
4199 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4200 g_assert_not_reached();
4201 switch (ainfo->size) {
4202 case 1:
4203 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4204 break;
4205 case 2:
4206 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4207 break;
4208 case 8:
4209 s390_lm (code, ainfo->reg, ainfo->reg + 1,
4210 inst->inst_basereg, inst->inst_offset);
4211 break;
4212 default:
4213 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4214 }
4215 } else if (ainfo->regtype == RegTypeBase) {
4216 } else if (ainfo->regtype == RegTypeFP) {
4217 if (ainfo->size == 8)
4218 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4219 else if (ainfo->size == 4)
4220 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4221 else
4222 g_assert_not_reached ();
4223 } else if (ainfo->regtype == RegTypeStructByVal) {
4224 if (ainfo->reg != STK_BASE) {
4225 switch (ainfo->size) {
4226 case 1:
4227 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4228 break;
4229 case 2:
4230 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4231 break;
4232 case 4:
4233 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4234 break;
4235 case 8:
4236 s390_lm (code, ainfo->reg, ainfo->reg+1, inst->inst_basereg, inst->inst_offset);
4237 break;
4238 }
4239 }
4240 } else if (ainfo->regtype == RegTypeStructByAddr) {
4241 if (ainfo->reg != STK_BASE) {
4242 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4243 }
4244 } else
4245 g_assert_not_reached ();
4246 }
4247 pos++;
4248 }
4249
4250 g_free (cinfo);
4251
4252 return code;
4253 }
4254
4255 /*========================= End of Function ========================*/
4256
4257 /*------------------------------------------------------------------*/
4258 /* */
4259 /* Name - mono_arch_emit_prolog */
4260 /* */
4261 /* Function - Create the instruction sequence for a function */
4262 /* prolog. */
4263 /* */
4264 /*------------------------------------------------------------------*/
4265
4266 guint8 *
4267 mono_arch_emit_prolog (MonoCompile *cfg)
4268 {
4269 MonoMethod *method = cfg->method;
4270 MonoBasicBlock *bb;
4271 MonoMethodSignature *sig;
4272 MonoInst *inst;
4273 int alloc_size, pos, max_offset, i;
4274 guint8 *code;
4275 CallInfo *cinfo;
4276 size_data sz;
4277 int tracing = 0;
4278 int lmfOffset; \
4279
4280 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4281 tracing = 1;
4282
4283 cfg->code_size = 512;
4284 cfg->native_code = code = g_malloc (cfg->code_size);
4285
4286 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4287
4288 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4289 cfg->used_int_regs |= 1 << 11;
4290 }
4291
4292 alloc_size = cfg->stack_offset;
4293
4294 cfg->stack_usage = alloc_size;
4295 s390_lr (code, s390_r11, STK_BASE);
4296 if (s390_is_uimm16 (alloc_size)) {
4297 s390_ahi (code, STK_BASE, -alloc_size);
4298 } else {
4299 int stackSize = alloc_size;
4300 while (stackSize > 32767) {
4301 s390_ahi (code, STK_BASE, -32767);
4302 stackSize -= 32767;
4303 }
4304 s390_ahi (code, STK_BASE, -stackSize);
4305 }
4306 s390_st (code, s390_r11, 0, STK_BASE, 0);
4307
4308 if (cfg->frame_reg != STK_BASE)
4309 s390_lr (code, s390_r11, STK_BASE);
4310
4311 /* compute max_offset in order to use short forward jumps
4312 * we always do it on s390 because the immediate displacement
4313 * for jumps is too small
4314 */
4315 max_offset = 0;
4316 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4317 MonoInst *ins = bb->code;
4318 bb->max_offset = max_offset;
4319
4320 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4321 max_offset += 6;
4322
4323 while (ins) {
4324 max_offset += ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
4325 ins = ins->next;
4326 }
4327 }
4328
4329 /* load arguments allocated to register from the stack */
4330 sig = mono_method_signature (method);
4331 pos = 0;
4332
4333 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4334
4335 if (cinfo->struct_ret) {
4336 ArgInfo *ainfo = &cinfo->ret;
4337 inst = cfg->ret;
4338 inst->backend.size = ainfo->vtsize;
4339 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4340 }
4341
4342 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4343 ArgInfo *ainfo = cinfo->args + i;
4344 inst = cfg->varinfo [pos];
4345
4346 if (inst->opcode == OP_REGVAR) {
4347 if (ainfo->regtype == RegTypeGeneral)
4348 s390_lr (code, inst->dreg, ainfo->reg);
4349 else if (ainfo->regtype == RegTypeFP) {
4350 if (inst->dreg != ainfo->reg) {
4351 if (ainfo->size == 4) {
4352 s390_ledbr (code, inst->dreg, ainfo->reg);
4353 } else {
4354 s390_ldr (code, inst->dreg, ainfo->reg);
4355 }
4356 }
4357 }
4358 else if (ainfo->regtype == RegTypeBase) {
4359 s390_lr (code, s390_r13, STK_BASE);
4360 s390_ahi (code, s390_r13, alloc_size);
4361 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4362 } else
4363 g_assert_not_reached ();
4364
4365 if (cfg->verbose_level > 2)
4366 g_print ("Argument %d assigned to register %s\n",
4367 pos, mono_arch_regname (inst->dreg));
4368 } else {
4369 if (ainfo->regtype == RegTypeGeneral) {
4370 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4371 g_assert_not_reached();
4372 switch (ainfo->size) {
4373 case 1:
4374 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4375 break;
4376 case 2:
4377 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4378 break;
4379 case 8:
4380 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4381 inst->inst_basereg, inst->inst_offset);
4382 break;
4383 default:
4384 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4385 }
4386 } else if (ainfo->regtype == RegTypeBase) {
4387 } else if (ainfo->regtype == RegTypeFP) {
4388 if (ainfo->size == 8)
4389 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4390 else if (ainfo->size == 4)
4391 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4392 else
4393 g_assert_not_reached ();
4394 } else if (ainfo->regtype == RegTypeStructByVal) {
4395 int doffset = inst->inst_offset;
4396 int reg;
4397 if (ainfo->reg != STK_BASE)
4398 reg = ainfo->reg;
4399 else {
4400 reg = s390_r0;
4401 s390_lr (code, s390_r13, STK_BASE);
4402 s390_ahi (code, s390_r13, alloc_size);
4403 }
4404 switch (ainfo->size) {
4405 case 1:
4406 if (ainfo->reg == STK_BASE)
4407 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4408 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4409 break;
4410 case 2:
4411 if (ainfo->reg == STK_BASE)
4412 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4413 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4414 break;
4415 case 4:
4416 if (ainfo->reg == STK_BASE)
4417 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4418 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4419 break;
4420 case 8:
4421 if (ainfo->reg == STK_BASE)
4422 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4423 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4424 break;
4425 }
4426 } else if (ainfo->regtype == RegTypeStructByAddr) {
4427 if (ainfo->reg != STK_BASE)
4428 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4429 } else
4430 g_assert_not_reached ();
4431 }
4432 pos++;
4433 }
4434
4435 if (method->save_lmf) {
4436 /*---------------------------------------------------------------*/
4437 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4438 /*---------------------------------------------------------------*/
4439 lmfOffset = alloc_size - sizeof(MonoLMF);
4440
4441 s390_lr (code, s390_r13, cfg->frame_reg);
4442 if (s390_is_uimm16(lmfOffset))
4443 s390_ahi (code, s390_r13, lmfOffset);
4444 else {
4445 s390_basr (code, s390_r14, 0);
4446 s390_j (code, 4);
4447 s390_word (code, lmfOffset);
4448 s390_a (code, s390_r13, 0, s390_r14, 4);
4449 }
4450
4451 /*---------------------------------------------------------------*/
4452 /* Preserve the parameter registers while we fix up the lmf */
4453 /*---------------------------------------------------------------*/
4454 s390_stm (code, s390_r2, s390_r6, s390_r13,
4455 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4456
4457 /*---------------------------------------------------------------*/
4458 /* On return from this call r2 have the address of the &lmf */
4459 /*---------------------------------------------------------------*/
4460 mono_add_patch_info (cfg, code - cfg->native_code,
4461 MONO_PATCH_INFO_INTERNAL_METHOD,
4462 (gpointer)"mono_get_lmf_addr");
4463 s390_brasl (code, s390_r14, 0);
4464
4465 /*---------------------------------------------------------------*/
4466 /* Set lmf.lmf_addr = jit_tls->lmf */
4467 /*---------------------------------------------------------------*/
4468 s390_st (code, s390_r2, 0, s390_r13,
4469 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4470
4471 /*---------------------------------------------------------------*/
4472 /* Get current lmf */
4473 /*---------------------------------------------------------------*/
4474 s390_l (code, s390_r0, 0, s390_r2, 0);
4475
4476 /*---------------------------------------------------------------*/
4477 /* Set our lmf as the current lmf */
4478 /*---------------------------------------------------------------*/
4479 s390_st (code, s390_r13, 0, s390_r2, 0);
4480
4481 /*---------------------------------------------------------------*/
4482 /* Have our lmf.previous_lmf point to the last lmf */
4483 /*---------------------------------------------------------------*/
4484 s390_st (code, s390_r0, 0, s390_r13,
4485 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4486
4487 /*---------------------------------------------------------------*/
4488 /* save method info */
4489 /*---------------------------------------------------------------*/
4490 s390_basr (code, s390_r1, 0);
4491 s390_j (code, 4);
4492 s390_word (code, method);
4493 s390_l (code, s390_r1, 0, s390_r1, 4);
4494 s390_st (code, s390_r1, 0, s390_r13,
4495 G_STRUCT_OFFSET(MonoLMF, method));
4496
4497 /*---------------------------------------------------------------*/
4498 /* save the current IP */
4499 /*---------------------------------------------------------------*/
4500 s390_st (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4501 s390_basr (code, s390_r1, 0);
4502 s390_la (code, s390_r1, 0, s390_r1, 0);
4503 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4504
4505 /*---------------------------------------------------------------*/
4506 /* Save general and floating point registers */
4507 /*---------------------------------------------------------------*/
4508 s390_stm (code, s390_r2, s390_r12, s390_r13,
4509 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4510 for (i = 0; i < 16; i++) {
4511 s390_std (code, i, 0, s390_r13,
4512 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4513 }
4514
4515 /*---------------------------------------------------------------*/
4516 /* Restore the parameter registers now that we've set up the lmf */
4517 /*---------------------------------------------------------------*/
4518 s390_lm (code, s390_r2, s390_r6, s390_r13,
4519 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4520 }
4521
4522 if (tracing)
4523 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4524
4525 cfg->code_len = code - cfg->native_code;
4526 g_free (cinfo);
4527
4528 return code;
4529 }
4530
4531 /*========================= End of Function ========================*/
4532
4533 /*------------------------------------------------------------------*/
4534 /* */
4535 /* Name - mono_arch_emit_epilog */
4536 /* */
4537 /* Function - Emit the instructions for a function epilog. */
4538 /* */
4539 /*------------------------------------------------------------------*/
4540
4541 void
4542 mono_arch_emit_epilog (MonoCompile *cfg)
4543 {
4544 MonoMethod *method = cfg->method;
4545 int tracing = 0;
4546 guint8 *code;
4547 int max_epilog_size = 96;
4548
4549 if (cfg->method->save_lmf)
4550 max_epilog_size += 128;
4551
4552 if (mono_jit_trace_calls != NULL)
4553 max_epilog_size += 128;
4554
4555 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4556 max_epilog_size += 128;
4557
4558 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4559 cfg->code_size *= 2;
4560 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4561 mono_jit_stats.code_reallocs++;
4562 }
4563
4564 code = cfg->native_code + cfg->code_len;
4565
4566 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4567 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4568 tracing = 1;
4569 }
4570
4571 if (method->save_lmf)
4572 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4573
4574 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4575 s390_l (code, STK_BASE, 0, STK_BASE, 0);
4576 else
4577 code = backUpStackPtr(cfg, code, STK_BASE);
4578
4579 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4580 s390_br (code, s390_r14);
4581
4582 cfg->code_len = code - cfg->native_code;
4583
4584 g_assert (cfg->code_len < cfg->code_size);
4585
4586 }
4587
4588 /*========================= End of Function ========================*/
4589
4590 /*------------------------------------------------------------------*/
4591 /* */
4592 /* Name - mono_arch_emit_exceptions */
4593 /* */
4594 /* Function - Emit the blocks to handle exception conditions. */
4595 /* */
4596 /*------------------------------------------------------------------*/
4597
4598 void
4599 mono_arch_emit_exceptions (MonoCompile *cfg)
4600 {
4601 MonoJumpInfo *patch_info;
4602 guint8 *code;
4603 int nThrows = 0,
4604 exc_count = 0,
4605 iExc;
4606 guint32 code_size;
4607 MonoClass *exc_classes [MAX_EXC];
4608 guint8 *exc_throw_start [MAX_EXC],
4609 *exc_throw_end [MAX_EXC];
4610
4611 for (patch_info = cfg->patch_info;
4612 patch_info;
4613 patch_info = patch_info->next) {
4614 if (patch_info->type == MONO_PATCH_INFO_EXC)
4615 exc_count++;
4616 }
4617
4618 code_size = exc_count * 26;
4619
4620 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4621 cfg->code_size *= 2;
4622 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4623 mono_jit_stats.code_reallocs++;
4624 }
4625
4626 code = cfg->native_code + cfg->code_len;
4627
4628 /*---------------------------------------------------------------------*/
4629 /* Add code to raise exceptions */
4630 /*---------------------------------------------------------------------*/
4631 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4632 switch (patch_info->type) {
4633 case MONO_PATCH_INFO_EXC: {
4634 guint8 *ip = patch_info->ip.i + cfg->native_code;
4635 MonoClass *exc_class;
4636 guint32 throw_ip;
4637
4638 /*-----------------------------------------------------*/
4639 /* Patch the branch in epilog to come here */
4640 /*-----------------------------------------------------*/
4641 s390_patch (ip + 2, (guint32) (S390_RELATIVE(code,ip)));
4642
4643 exc_class = mono_class_from_name (mono_defaults.corlib,
4644 "System",
4645 patch_info->data.name);
4646 g_assert (exc_class);
4647 throw_ip = patch_info->ip.i;
4648
4649 for (iExc = 0; iExc < nThrows; ++iExc)
4650 if (exc_classes [iExc] == exc_class)
4651 break;
4652
4653 if (iExc < nThrows) {
4654 s390_jcl (code, S390_CC_UN, (guint32) exc_throw_start [iExc]);
4655 patch_info->type = MONO_PATCH_INFO_NONE;
4656 } else {
4657
4658 if (nThrows < MAX_EXC) {
4659 exc_classes [nThrows] = exc_class;
4660 exc_throw_start [nThrows] = code;
4661 }
4662
4663 /*---------------------------------------------*/
4664 /* Patch the parameter passed to the handler */
4665 /*---------------------------------------------*/
4666 s390_basr (code, s390_r13, 0);
4667 s390_j (code, 4);
4668 s390_word (code, patch_info->data.target);
4669 /*---------------------------------------------*/
4670 /* Load return address & parameter register */
4671 /*---------------------------------------------*/
4672 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
4673 cfg->native_code + 8), code));
4674 s390_l (code, s390_r2, 0, s390_r13, 4);
4675 /*---------------------------------------------*/
4676 /* Reuse the current patch to set the jump */
4677 /*---------------------------------------------*/
4678 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4679 patch_info->data.name = "mono_arch_throw_exception_by_name";
4680 patch_info->ip.i = code - cfg->native_code;
4681 s390_jcl (code, S390_CC_UN, 0);
4682 }
4683 break;
4684 }
4685 default:
4686 /* do nothing */
4687 break;
4688 }
4689 }
4690
4691 cfg->code_len = code - cfg->native_code;
4692
4693 g_assert (cfg->code_len < cfg->code_size);
4694
4695 }
4696
4697 /*========================= End of Function ========================*/
4698
4699 /*------------------------------------------------------------------*/
4700 /* */
4701 /* Name - mono_arch_setup_jit_tls_data */
4702 /* */
4703 /* Function - Setup the JIT's Thread Level Specific Data. */
4704 /* */
4705 /*------------------------------------------------------------------*/
4706
4707 void
4708 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4709 {
4710
4711 if (!tls_offset_inited) {
4712 tls_offset_inited = TRUE;
4713
4714 #if HAVE_KW_THREAD
4715 # if 0
4716 __asm__ ("\tear\t%r1,0\n"
4717 "\tlr\t%0,%3\n"
4718 "\tsr\t%0,%r1\n"
4719 "\tlr\t%1,%4\n"
4720 "\tsr\t%1,%r1\n"
4721 "\tlr\t%2,%5\n"
4722 "\tsr\t%2,%r1\n"
4723 : "=r" (appdomain_tls_offset),
4724 "=r" (thread_tls_offset),
4725 "=r" (lmf_tls_offset)
4726 : "r" (&tls_appdomain),
4727 "r" (&tls_current_object),
4728 "r" (&mono_lmf_addr)
4729 : "1", "cc");
4730 # endif
4731 #endif
4732 }
4733
4734 if (!lmf_addr_key_inited) {
4735 lmf_addr_key_inited = TRUE;
4736 pthread_key_create (&lmf_addr_key, NULL);
4737 }
4738 pthread_setspecific (lmf_addr_key, &tls->lmf);
4739
4740 }
4741
4742 /*========================= End of Function ========================*/
4743
4744 /*------------------------------------------------------------------*/
4745 /* */
4746 /* Name - mono_arch_free_jit_tls_data */
4747 /* */
4748 /* Function - Free tls data. */
4749 /* */
4750 /*------------------------------------------------------------------*/
4751
4752 void
4753 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4754 {
4755
4756 }
4757
4758 /*========================= End of Function ========================*/
4759
4760 /*------------------------------------------------------------------*/
4761 /* */
4762 /* Name - mono_arch_emit_this_vret_args */
4763 /* */
4764 /* Function - */
4765 /* */
4766 /*------------------------------------------------------------------*/
4767
4768 void
4769 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
4770 {
4771 int this_dreg = s390_r2;
4772
4773 if (vt_reg != -1)
4774 this_dreg = s390_r3;
4775
4776 /* add the this argument */
4777 if (this_reg != -1) {
4778 MonoInst *this;
4779 MONO_INST_NEW (cfg, this, OP_SETREG);
4780 this->type = this_type;
4781 this->sreg1 = this_reg;
4782 this->dreg = mono_regstate_next_int (cfg->rs);
4783 mono_bblock_add_inst (cfg->cbb, this);
4784 mono_call_inst_add_outarg_reg (cfg, inst, this->dreg, this_dreg, FALSE);
4785 }
4786
4787 if (vt_reg != -1) {
4788 MonoInst *vtarg;
4789 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
4790 vtarg->type = STACK_MP;
4791 vtarg->sreg1 = vt_reg;
4792 vtarg->dreg = mono_regstate_next_int (cfg->rs);
4793 mono_bblock_add_inst (cfg->cbb, vtarg);
4794 mono_call_inst_add_outarg_reg (cfg, inst, vtarg->dreg, s390_r2, FALSE);
4795 }
4796 }
4797
4798 /*========================= End of Function ========================*/
4799
4800 /*------------------------------------------------------------------*/
4801 /* */
4802 /* Name - mono_arch_get_inst_for_method */
4803 /* */
4804 /* Function - Check for opcodes we can handle directly in */
4805 /* hardware. */
4806 /* */
4807 /*------------------------------------------------------------------*/
4808
4809 MonoInst*
4810 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
4811 MonoMethodSignature *fsig, MonoInst **args)
4812 {
4813 MonoInst *ins = NULL;
4814
4815 if (cmethod->klass == mono_defaults.math_class) {
4816 if (strcmp (cmethod->name, "Sqrt") == 0) {
4817 MONO_INST_NEW (cfg, ins, OP_SQRT);
4818 ins->inst_i0 = args [0];
4819 }
4820 } else if (cmethod->klass == mono_defaults.thread_class &&
4821 strcmp (cmethod->name, "MemoryBarrier") == 0) {
4822 MONO_INST_NEW (cfg, ins, OP_MEMORY_BARRIER);
4823 } else if(cmethod->klass->image == mono_defaults.corlib &&
4824 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
4825 (strcmp (cmethod->klass->name, "Interlocked") == 0)) {
4826
4827 if (strcmp (cmethod->name, "Increment") == 0 &&
4828 fsig->params [0]->type == MONO_TYPE_I4) {
4829 MonoInst *ins_iconst;
4830
4831 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_NEW_I4);
4832 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
4833 ins_iconst->inst_c0 = 1;
4834
4835 ins->inst_i0 = args [0];
4836 ins->inst_i1 = ins_iconst;
4837 } else if (strcmp (cmethod->name, "Decrement") == 0 &&
4838 fsig->params [0]->type == MONO_TYPE_I4) {
4839 MonoInst *ins_iconst;
4840
4841 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_NEW_I4);
4842 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
4843 ins_iconst->inst_c0 = -1;
4844
4845 ins->inst_i0 = args [0];
4846 ins->inst_i1 = ins_iconst;
4847 } else if (strcmp (cmethod->name, "Exchange") == 0 &&
4848 fsig->params [0]->type == MONO_TYPE_I4) {
4849 MONO_INST_NEW (cfg, ins, OP_ATOMIC_EXCHANGE_I4);
4850
4851 ins->inst_i0 = args [0];
4852 ins->inst_i1 = args [1];
4853 } else if (strcmp (cmethod->name, "Add") == 0 &&
4854 fsig->params [0]->type == MONO_TYPE_I4) {
4855 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_I4);
4856
4857 ins->inst_i0 = args [0];
4858 ins->inst_i1 = args [1];
4859 }
4860 }
4861 return ins;
4862 }
4863
4864 /*========================= End of Function ========================*/
4865
4866 /*------------------------------------------------------------------*/
4867 /* */
4868 /* Name - mono_arch_print_tree */
4869 /* */
4870 /* Function - Print platform-specific opcode details. */
4871 /* */
4872 /* Returns - 1 - opcode details have been printed */
4873 /* 0 - opcode details have not been printed */
4874 /* */
4875 /*------------------------------------------------------------------*/
4876
4877 gboolean
4878 mono_arch_print_tree (MonoInst *tree, int arity)
4879 {
4880 gboolean done;
4881
4882 switch (tree->opcode) {
4883 case OP_S390_LOADARG:
4884 case OP_S390_ARGREG:
4885 case OP_S390_ARGPTR:
4886 printf ("[0x%lx(%s)]", tree->inst_offset,
4887 mono_arch_regname (tree->inst_basereg));
4888 done = 1;
4889 break;
4890 case OP_S390_STKARG:
4891 printf ("[0x%lx(previous_frame)]",
4892 tree->inst_offset);
4893 done = 1;
4894 break;
4895 case OP_S390_MOVE:
4896 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
4897 tree->inst_offset, tree->backend.size,
4898 mono_arch_regname(tree->dreg), tree->inst_imm,
4899 mono_arch_regname(tree->sreg1));
4900 done = 1;
4901 break;
4902 case OP_S390_SETF4RET:
4903 printf ("[f%ld,f%ld]",
4904 mono_arch_regname (tree->dreg),
4905 mono_arch_regname (tree->sreg1));
4906 done = 1;
4907 break;
4908 case OP_TLS_GET:
4909 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
4910 tree->inst_imm,
4911 mono_arch_regname (tree->sreg1));
4912 done = 1;
4913 break;
4914 case OP_S390_BKCHAIN:
4915 printf ("[previous_frame(%s)]",
4916 mono_arch_regname (tree->sreg1));
4917 done = 1;
4918 break;
4919 default:
4920 done = 0;
4921 }
4922 return (done);
4923 }
4924
4925 /*========================= End of Function ========================*/
4926
4927 /*------------------------------------------------------------------*/
4928 /* */
4929 /* Name - mono_arch_regalloc_cost */
4930 /* */
4931 /* Function - Determine the cost, in the number of memory */
4932 /* references, of the action of allocating the var- */
4933 /* iable VMV into a register during global register */
4934 /* allocation. */
4935 /* */
4936 /* Returns - Cost */
4937 /* */
4938 /*------------------------------------------------------------------*/
4939
4940 guint32
4941 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
4942 {
4943 /* FIXME: */
4944 return 2;
4945 }
4946
4947 /*========================= End of Function ========================*/
4948
4949 /*------------------------------------------------------------------*/
4950 /* */
4951 /* Name - mono_arch_get_domain_intrinsic */
4952 /* */
4953 /* Function - */
4954 /* */
4955 /* Returns - */
4956 /* */
4957 /*------------------------------------------------------------------*/
4958
4959 MonoInst *
4960 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
4961 {
4962 MonoInst *ins;
4963
4964 if (appdomain_tls_offset == -1)
4965 return NULL;
4966
4967 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
4968 ins->inst_offset = appdomain_tls_offset;
4969 return (ins);
4970 }
4971
4972 /*========================= End of Function ========================*/
4973
4974 /*------------------------------------------------------------------*/
4975 /* */
4976 /* Name - mono_arch_get_thread_intrinsic */
4977 /* */
4978 /* Function - */
4979 /* */
4980 /* Returns - */
4981 /* */
4982 /*------------------------------------------------------------------*/
4983
4984 MonoInst *
4985 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
4986 {
4987 MonoInst *ins;
4988
4989 if (thread_tls_offset == -1)
4990 return NULL;
4991
4992 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
4993 ins->inst_offset = thread_tls_offset;
4994 return (ins);
4995 }
4996
4997 /*========================= End of Function ========================*/
4998
4999 /*------------------------------------------------------------------*/
5000 /* */
5001 /* Name - mono_arch_flush_register_windows */
5002 /* */
5003 /* Function - */
5004 /* */
5005 /* Returns - */
5006 /* */
5007 /*------------------------------------------------------------------*/
5008
5009 void
5010 mono_arch_flush_register_windows (void)
5011 {
5012 }
5013
5014 /*========================= End of Function ========================*/
5015
5016 /*------------------------------------------------------------------*/
5017 /* */
5018 /* Name - mono_arch_get_lmf_addr */
5019 /* */
5020 /* Function - */
5021 /* */
5022 /* Returns - */
5023 /* */
5024 /*------------------------------------------------------------------*/
5025
5026 gpointer
5027 mono_arch_get_lmf_addr (void)
5028 {
5029 return pthread_getspecific (lmf_addr_key);
5030 }
5031
5032
5033 /*========================= End of Function ========================*/
5034
5035 /*------------------------------------------------------------------*/
5036 /* */
5037 /* Name - mono_arch_get_patch_offset */
5038 /* */
5039 /* Function - Dummy entry point until s390x supports aot. */
5040 /* */
5041 /* Returns - Offset for patch. */
5042 /* */
5043 /*------------------------------------------------------------------*/
5044
5045 guint32
5046 mono_arch_get_patch_offset (guint8 *code)
5047 {
5048 return 0;
5049 }
5050
5051 /*========================= End of Function ========================*/
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