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Fix MONO_TYPE_VALUETYPE processing.
[mono.git] / mono / mini / mini-s390x.c
blobf30ca2a9397d375b69449df809f44d150ce6a589
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_lgr (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_lgr (code, s390_r13, ins->sreg2); \
113 } else { \
114 src2 = ins->sreg2; \
115 } \
116 if (ins->dreg != ins->sreg1) { \
117 s390_lgr (code, ins->dreg, ins->sreg1); \
118 }
119
120 #define CHECK_SRCDST_COM_I \
121 if (ins->dreg == ins->sreg2) { \
122 src2 = ins->sreg1; \
123 } else { \
124 src2 = ins->sreg2; \
125 if (ins->dreg != ins->sreg1) { \
126 s390_lgfr (code, ins->dreg, ins->sreg1); \
127 } \
128 }
129
130 #define CHECK_SRCDST_NCOM_I \
131 if (ins->dreg == ins->sreg2) { \
132 src2 = s390_r13; \
133 s390_lgfr (code, s390_r13, ins->sreg2); \
134 } else { \
135 src2 = ins->sreg2; \
136 } \
137 if (ins->dreg != ins->sreg1) { \
138 s390_lgfr (code, ins->dreg, ins->sreg1); \
139 }
140
141 #define CHECK_SRCDST_COM_F \
142 if (ins->dreg == ins->sreg2) { \
143 src2 = ins->sreg1; \
144 } else { \
145 src2 = ins->sreg2; \
146 if (ins->dreg != ins->sreg1) { \
147 s390_ldr (code, ins->dreg, ins->sreg1); \
148 } \
149 }
150
151 #define CHECK_SRCDST_NCOM_F \
152 if (ins->dreg == ins->sreg2) { \
153 src2 = s390_f15; \
154 s390_ldr (code, s390_r13, ins->sreg2); \
155 } else { \
156 src2 = ins->sreg2; \
157 } \
158 if (ins->dreg != ins->sreg1) { \
159 s390_ldr (code, ins->dreg, ins->sreg1); \
160 }
161
162 #undef DEBUG
163 #define DEBUG(a) if (cfg->verbose_level > 1) a
164
165 #define MAX_EXC 16
166
167 #define S390_TRACE_STACK_SIZE (5*sizeof(gpointer)+4*sizeof(gdouble))
168
169 #define MAX (a, b) ((a) > (b) ? (a) : (b))
170
171 /*========================= End of Defines =========================*/
172
173 /*------------------------------------------------------------------*/
174 /* I n c l u d e s */
175 /*------------------------------------------------------------------*/
176
177 #include "mini.h"
178 #include <string.h>
179
180 #include <mono/metadata/appdomain.h>
181 #include <mono/metadata/debug-helpers.h>
182 #include <mono/metadata/profiler-private.h>
183 #include <mono/utils/mono-math.h>
184
185 #include "mini-s390x.h"
186 #include "inssel.h"
187 #include "cpu-s390x.h"
188
189 /*========================= End of Includes ========================*/
190
191 /*------------------------------------------------------------------*/
192 /* T y p e d e f s */
193 /*------------------------------------------------------------------*/
194
195 typedef struct {
196 guint stack_size,
197 local_size,
198 code_size,
199 parm_size,
200 offset,
201 offStruct,
202 retStruct;
203 } size_data;
204
205 /*------------------------------------------------------------------*/
206 /* Used by the instrument_emit_epilog */
207 /*------------------------------------------------------------------*/
208
209 enum {
210 SAVE_NONE,
211 SAVE_STRUCT,
212 SAVE_ONE,
213 SAVE_TWO,
214 SAVE_R4,
215 SAVE_R8
216 };
217
218 typedef struct InstList InstList;
219
220 struct InstList {
221 InstList *prev;
222 InstList *next;
223 MonoInst *data;
224 };
225
226 enum {
227 RegTypeGeneral,
228 RegTypeBase,
229 RegTypeFP,
230 RegTypeStructByVal,
231 RegTypeStructByAddr
232 };
233
234 typedef struct {
235 gint32 offset; /* offset from caller's stack */
236 gint32 offparm; /* offset from callee's stack */
237 guint16 vtsize; /* in param area */
238 guint8 reg;
239 guint8 regtype; /* See RegType* */
240 guint32 size; /* Size of structure used by RegTypeStructByVal */
241 gint32 type; /* Data type of argument */
242 } ArgInfo;
243
244 typedef struct {
245 int nargs;
246 int lastgr;
247 guint32 stack_usage;
248 guint32 struct_ret;
249 ArgInfo ret;
250 ArgInfo sigCookie;
251 ArgInfo args [1];
252 } CallInfo;
253
254 typedef struct {
255 gint64 gr[5]; /* R2-R6 */
256 gdouble fp[3]; /* F0-F2 */
257 } __attribute__ ((packed)) RegParm;
258
259 /*========================= End of Typedefs ========================*/
260
261 /*------------------------------------------------------------------*/
262 /* P r o t o t y p e s */
263 /*------------------------------------------------------------------*/
264
265 static void indent (int);
266 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
267 static void decodeParm (MonoType *, void *, int);
268 static void enter_method (MonoMethod *, RegParm *, char *);
269 static void leave_method (MonoMethod *, ...);
270 static gboolean is_regsize_var (MonoType *);
271 static inline void add_general (guint *, size_data *, ArgInfo *);
272 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
273 static inline void add_float (guint *, size_data *, ArgInfo *);
274 static CallInfo * calculate_sizes (MonoMethodSignature *, size_data *, gboolean);
275 static void peephole_pass (MonoCompile *, MonoBasicBlock *);
276 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
277 static void mono_arch_break(void);
278 gpointer mono_arch_get_lmf_addr (void);
279 static guint8 * emit_load_volatile_registers (guint8 *, MonoCompile *);
280 static CompRelation opcode_to_cond (int);
281 static void catch_SIGILL(int, siginfo_t *, void *);
282 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *, int);
283
284 /*========================= End of Prototypes ======================*/
285
286 /*------------------------------------------------------------------*/
287 /* G l o b a l V a r i a b l e s */
288 /*------------------------------------------------------------------*/
289
290 int mono_exc_esp_offset = 0;
291
292 static int indent_level = 0;
293
294 int has_ld = 0;
295
296 static gboolean tls_offset_inited = FALSE;
297
298 static int appdomain_tls_offset = -1,
299 lmf_tls_offset = -1,
300 thread_tls_offset = -1;
301
302 pthread_key_t lmf_addr_key;
303
304 gboolean lmf_addr_key_inited = FALSE;
305
306 #if 0
307
308 extern __thread MonoDomain *tls_appdomain;
309 extern __thread MonoThread *tls_current_object;
310 extern __thread gpointer mono_lmf_addr;
311
312 #endif
313
314 /*====================== End of Global Variables ===================*/
315
316 /*------------------------------------------------------------------*/
317 /* */
318 /* Name - mono_arch_regname */
319 /* */
320 /* Function - Returns the name of the register specified by */
321 /* the input parameter. */
322 /* */
323 /*------------------------------------------------------------------*/
324
325 const char*
326 mono_arch_regname (int reg) {
327 static const char * rnames[] = {
328 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
329 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
330 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
331 "s390_r15"
332 };
333
334 if (reg >= 0 && reg < 16)
335 return rnames [reg];
336 else
337 return "unknown";
338 }
339
340 /*========================= End of Function ========================*/
341
342 /*------------------------------------------------------------------*/
343 /* */
344 /* Name - mono_arch_fregname */
345 /* */
346 /* Function - Returns the name of the register specified by */
347 /* the input parameter. */
348 /* */
349 /*------------------------------------------------------------------*/
350
351 const char*
352 mono_arch_fregname (int reg) {
353 static const char * rnames[] = {
354 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
355 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
356 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
357 "s390_f15"
358 };
359
360 if (reg >= 0 && reg < 16)
361 return rnames [reg];
362 else
363 return "unknown";
364 }
365
366 /*========================= End of Function ========================*/
367
368 /*------------------------------------------------------------------*/
369 /* */
370 /* Name - arch_get_argument_info */
371 /* */
372 /* Function - Gathers information on parameters such as size, */
373 /* alignment, and padding. arg_info should be large */
374 /* enough to hold param_count + 1 entries. */
375 /* */
376 /* Parameters - @csig - Method signature */
377 /* @param_count - No. of parameters to consider */
378 /* @arg_info - An array to store the result info */
379 /* */
380 /* Returns - Size of the activation frame */
381 /* */
382 /*------------------------------------------------------------------*/
383
384 int
385 mono_arch_get_argument_info (MonoMethodSignature *csig,
386 int param_count,
387 MonoJitArgumentInfo *arg_info)
388 {
389 int k, frame_size = 0;
390 int size, align, pad;
391 int offset = 8;
392
393 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
394 frame_size += sizeof (gpointer);
395 offset += 8;
396 }
397
398 arg_info [0].offset = offset;
399
400 if (csig->hasthis) {
401 frame_size += sizeof (gpointer);
402 offset += 8;
403 }
404
405 arg_info [0].size = frame_size;
406
407 for (k = 0; k < param_count; k++) {
408
409 if (csig->pinvoke)
410 size = mono_type_native_stack_size (csig->params [k], &align);
411 else
412 size = mono_type_stack_size (csig->params [k], &align);
413
414 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
415 arg_info [k].pad = pad;
416 frame_size += size;
417 arg_info [k + 1].pad = 0;
418 arg_info [k + 1].size = size;
419 offset += pad;
420 arg_info [k + 1].offset = offset;
421 offset += size;
422 }
423
424 align = MONO_ARCH_FRAME_ALIGNMENT;
425 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
426 arg_info [k].pad = pad;
427
428 return frame_size;
429 }
430
431 /*========================= End of Function ========================*/
432
433 /*------------------------------------------------------------------*/
434 /* */
435 /* Name - retFitsInReg. */
436 /* */
437 /* Function - Determines if a value can be returned in one or */
438 /* two registers. */
439 /* */
440 /*------------------------------------------------------------------*/
441
442 static inline gboolean
443 retFitsInReg(guint32 size)
444 {
445 switch (size) {
446 case 0:
447 case 1:
448 case 2:
449 case 4:
450 case 8:
451 return (TRUE);
452 break;
453 default:
454 return (FALSE);
455 }
456 }
457
458 /*========================= End of Function ========================*/
459
460 /*------------------------------------------------------------------*/
461 /* */
462 /* Name - backStackPtr. */
463 /* */
464 /* Function - Restore Stack Pointer to previous frame. */
465 /* */
466 /*------------------------------------------------------------------*/
467
468 static inline guint8 *
469 backUpStackPtr(MonoCompile *cfg, guint8 *code)
470 {
471 int stackSize = cfg->stack_usage;
472
473 if (s390_is_uimm16 (stackSize)) {
474 s390_aghi (code, STK_BASE, stackSize);
475 } else {
476 while (stackSize > 32767) {
477 s390_aghi (code, STK_BASE, 32767);
478 stackSize -= 32767;
479 }
480 s390_aghi (code, STK_BASE, stackSize);
481 }
482 return (code);
483 }
484
485 /*========================= End of Function ========================*/
486
487 /*------------------------------------------------------------------*/
488 /* */
489 /* Name - indent */
490 /* */
491 /* Function - Perform nice indenting to current level */
492 /* */
493 /*------------------------------------------------------------------*/
494
495 static void
496 indent (int diff) {
497 int v;
498 if (diff < 0)
499 indent_level += diff;
500 v = indent_level;
501 printf("[%3d] ",v);
502 while (v-- > 0) {
503 printf (". ");
504 }
505 if (diff > 0)
506 indent_level += diff;
507 }
508
509 /*========================= End of Function ========================*/
510
511 /*------------------------------------------------------------------*/
512 /* */
513 /* Name - decodeParm */
514 /* */
515 /* Function - Decode a parameter for the trace. */
516 /* */
517 /*------------------------------------------------------------------*/
518
519 static void
520 decodeParm(MonoType *type, void *curParm, int size)
521 {
522 guint32 simpleType;
523
524 if (type->byref) {
525 printf("[BYREF:%p], ", *((char **) curParm));
526 } else {
527 simpleType = mono_type_get_underlying_type(type)->type;
528 enum_parmtype:
529 switch (simpleType) {
530 case MONO_TYPE_I :
531 printf ("[INTPTR:%p], ", *((int **) curParm));
532 break;
533 case MONO_TYPE_U :
534 printf ("[UINTPTR:%p], ", *((int **) curParm));
535 break;
536 case MONO_TYPE_BOOLEAN :
537 printf ("[BOOL:%ld], ", *((gint64 *) curParm));
538 break;
539 case MONO_TYPE_CHAR :
540 printf ("[CHAR:%c], ", *((int *) curParm));
541 break;
542 case MONO_TYPE_I1 :
543 printf ("[INT1:%ld], ", *((gint64 *) curParm));
544 break;
545 case MONO_TYPE_I2 :
546 printf ("[INT2:%ld], ", *((gint64 *) curParm));
547 break;
548 case MONO_TYPE_I4 :
549 printf ("[INT4:%ld], ", *((gint64 *) curParm));
550 break;
551 case MONO_TYPE_U1 :
552 printf ("[UINT1:%lu], ", *((guint64 *) curParm));
553 break;
554 case MONO_TYPE_U2 :
555 printf ("[UINT2:%lu], ", *((guint64 *) curParm));
556 break;
557 case MONO_TYPE_U4 :
558 printf ("[UINT4:%lu], ", *((guint64 *) curParm));
559 break;
560 case MONO_TYPE_U8 :
561 printf ("[UINT8:%lu], ", *((guint64 *) curParm));
562 break;
563 case MONO_TYPE_STRING : {
564 MonoString *s = *((MonoString **) curParm);
565 if (s) {
566 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
567 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
568 } else {
569 printf("[STRING:null], ");
570 }
571 break;
572 }
573 case MONO_TYPE_CLASS :
574 case MONO_TYPE_OBJECT : {
575 MonoObject *obj = *((MonoObject **) curParm);
576 MonoClass *class;
577 if ((obj) && (obj->vtable)) {
578 printf("[CLASS/OBJ:");
579 class = obj->vtable->klass;
580 printf("%p [%p] ",obj,curParm);
581 if (class == mono_defaults.string_class) {
582 printf("[STRING:%p:%s]",
583 obj, mono_string_to_utf8 ((MonoString *) obj));
584 } else if (class == mono_defaults.int32_class) {
585 printf("[INT32:%p:%d]",
586 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
587 } else
588 printf("[%s.%s:%p]",
589 class->name_space, class->name, obj);
590 printf("], ");
591 } else {
592 printf("[OBJECT:null], ");
593 }
594 break;
595 }
596 case MONO_TYPE_PTR :
597 printf("[PTR:%p], ", *((gpointer **) (curParm)));
598 break;
599 case MONO_TYPE_FNPTR :
600 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
601 break;
602 case MONO_TYPE_ARRAY :
603 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
604 break;
605 case MONO_TYPE_SZARRAY :
606 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
607 break;
608 case MONO_TYPE_I8 :
609 printf("[INT8:%ld], ", *((gint64 *) (curParm)));
610 break;
611 case MONO_TYPE_R4 :
612 printf("[FLOAT4:%g], ", *((float *) (curParm)));
613 break;
614 case MONO_TYPE_R8 :
615 printf("[FLOAT8:%g], ", *((double *) (curParm)));
616 break;
617 case MONO_TYPE_VALUETYPE : {
618 int i;
619 MonoMarshalType *info;
620
621 if (type->data.klass->enumtype) {
622 simpleType = type->data.klass->enum_basetype->type;
623 printf("{VALUETYPE} - ");
624 goto enum_parmtype;
625 }
626
627 info = mono_marshal_load_type_info (type->data.klass);
628
629 if ((info->native_size == sizeof(float)) &&
630 (info->num_fields == 1) &&
631 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
632 printf("[FLOAT4:%f], ", *((float *) (curParm)));
633 break;
634 }
635
636 if ((info->native_size == sizeof(double)) &&
637 (info->num_fields == 1) &&
638 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
639 printf("[FLOAT8:%g], ", *((double *) (curParm)));
640 break;
641 }
642
643 printf("[VALUETYPE:");
644 for (i = 0; i < size; i++)
645 printf("%02x,", *((guint8 *)curParm+i));
646 printf("]");
647 break;
648 }
649 case MONO_TYPE_TYPEDBYREF: {
650 int i;
651 printf("[TYPEDBYREF:");
652 for (i = 0; i < size; i++)
653 printf("%02x,", *((guint8 *)curParm+i));
654 printf("]");
655 break;
656 }
657 default :
658 printf("[?? - %d], ",simpleType);
659 }
660 }
661 }
662
663 /*========================= End of Function ========================*/
664
665 /*------------------------------------------------------------------*/
666 /* */
667 /* Name - enter_method */
668 /* */
669 /* Function - Perform tracing of the entry to the current */
670 /* method. */
671 /* */
672 /*------------------------------------------------------------------*/
673
674 static void
675 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
676 {
677 int i, oParm = 0, iParm = 0;
678 MonoClass *class;
679 MonoObject *obj;
680 MonoMethodSignature *sig;
681 char *fname;
682 guint64 ip;
683 CallInfo *cinfo;
684 ArgInfo *ainfo;
685 size_data sz;
686 void *curParm;
687
688 fname = mono_method_full_name (method, TRUE);
689 indent (1);
690 printf ("ENTER: %s ", fname);
691 g_free (fname);
692
693 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
694 printf ("ip: %p sp: %p - ", (gpointer) ip, sp);
695
696 if (rParm == NULL)
697 return;
698
699 sig = mono_method_signature (method);
700
701 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
702
703 if (cinfo->struct_ret) {
704 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
705 iParm = 1;
706 }
707
708 if (sig->hasthis) {
709 gpointer *this = (gpointer *) rParm->gr[iParm];
710 obj = (MonoObject *) this;
711 if (method->klass->valuetype) {
712 if (obj) {
713 printf("this:[value:%p:%016lx], ",
714 this, *((guint64 *)(this+sizeof(MonoObject))));
715 } else
716 printf ("this:[NULL], ");
717 } else {
718 if (obj) {
719 class = obj->vtable->klass;
720 if (class == mono_defaults.string_class) {
721 printf ("this:[STRING:%p:%s], ",
722 obj, mono_string_to_utf8 ((MonoString *)obj));
723 } else {
724 printf ("this:%p[%s.%s], ",
725 obj, class->name_space, class->name);
726 }
727 } else
728 printf ("this:NULL, ");
729 }
730 oParm++;
731 }
732
733 for (i = 0; i < sig->param_count; ++i) {
734 ainfo = &cinfo->args[i + oParm];
735 switch (ainfo->regtype) {
736 case RegTypeGeneral :
737 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
738 break;
739 case RegTypeFP :
740 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
741 break;
742 case RegTypeBase :
743 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
744 break;
745 case RegTypeStructByVal :
746 if (ainfo->reg != STK_BASE) {
747 int offset = sizeof(glong) - ainfo->size;
748 curParm = &(rParm->gr[ainfo->reg-2])+offset;
749 }
750 else
751 curParm = sp+ainfo->offset;
752
753 if (retFitsInReg (ainfo->vtsize))
754 decodeParm(sig->params[i],
755 curParm,
756 ainfo->size);
757 else
758 decodeParm(sig->params[i],
759 *((char **) curParm),
760 ainfo->vtsize);
761 break;
762 case RegTypeStructByAddr :
763 if (ainfo->reg != STK_BASE)
764 curParm = &(rParm->gr[ainfo->reg-2]);
765 else
766 curParm = sp+ainfo->offset;
767
768 decodeParm(sig->params[i],
769 *((char **) curParm),
770 ainfo->vtsize);
771 break;
772
773 default :
774 printf("???, ");
775 }
776 }
777 printf("\n");
778 g_free(cinfo);
779 }
780
781 /*========================= End of Function ========================*/
782
783 /*------------------------------------------------------------------*/
784 /* */
785 /* Name - leave_method */
786 /* */
787 /* Function - */
788 /* */
789 /*------------------------------------------------------------------*/
790
791 static void
792 leave_method (MonoMethod *method, ...)
793 {
794 MonoType *type;
795 char *fname;
796 guint64 ip;
797 va_list ap;
798
799 va_start(ap, method);
800
801 fname = mono_method_full_name (method, TRUE);
802 indent (-1);
803 printf ("LEAVE: %s", fname);
804 g_free (fname);
805
806 type = mono_method_signature (method)->ret;
807
808 handle_enum:
809 switch (type->type) {
810 case MONO_TYPE_VOID:
811 break;
812 case MONO_TYPE_BOOLEAN: {
813 int val = va_arg (ap, int);
814 if (val)
815 printf ("[TRUE:%d]", val);
816 else
817 printf ("[FALSE]");
818
819 break;
820 }
821 case MONO_TYPE_CHAR: {
822 int val = va_arg (ap, int);
823 printf ("[CHAR:%d]", val);
824 break;
825 }
826 case MONO_TYPE_I1: {
827 int val = va_arg (ap, int);
828 printf ("[INT1:%d]", val);
829 break;
830 }
831 case MONO_TYPE_U1: {
832 int val = va_arg (ap, int);
833 printf ("[UINT1:%d]", val);
834 break;
835 }
836 case MONO_TYPE_I2: {
837 int val = va_arg (ap, int);
838 printf ("[INT2:%d]", val);
839 break;
840 }
841 case MONO_TYPE_U2: {
842 int val = va_arg (ap, int);
843 printf ("[UINT2:%d]", val);
844 break;
845 }
846 case MONO_TYPE_I4: {
847 int val = va_arg (ap, int);
848 printf ("[INT4:%d]", val);
849 break;
850 }
851 case MONO_TYPE_U4: {
852 int val = va_arg (ap, int);
853 printf ("[UINT4:%d]", val);
854 break;
855 }
856 case MONO_TYPE_I: {
857 gint64 val = va_arg (ap, gint64);
858 printf ("[INT:%ld]", val);
859 printf("]");
860 break;
861 }
862 case MONO_TYPE_U: {
863 gint64 val = va_arg (ap, gint64);
864 printf ("[UINT:%lu]", val);
865 printf("]");
866 break;
867 }
868 case MONO_TYPE_STRING: {
869 MonoString *s = va_arg (ap, MonoString *);
870 ;
871 if (s) {
872 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
873 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
874 } else
875 printf ("[STRING:null], ");
876 break;
877 }
878 case MONO_TYPE_CLASS:
879 case MONO_TYPE_OBJECT: {
880 MonoObject *o = va_arg (ap, MonoObject *);
881
882 if ((o) && (o->vtable)) {
883 if (o->vtable->klass == mono_defaults.boolean_class) {
884 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
885 } else if (o->vtable->klass == mono_defaults.int32_class) {
886 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
887 } else if (o->vtable->klass == mono_defaults.int64_class) {
888 printf ("[INT64:%p:%ld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
889 } else
890 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
891 } else
892 printf ("[OBJECT:%p]", o);
893
894 break;
895 }
896 case MONO_TYPE_PTR:
897 case MONO_TYPE_FNPTR:
898 case MONO_TYPE_ARRAY:
899 case MONO_TYPE_SZARRAY: {
900 gpointer p = va_arg (ap, gpointer);
901 printf ("[result=%p]", p);
902 break;
903 }
904 case MONO_TYPE_I8: {
905 gint64 l = va_arg (ap, gint64);
906 printf ("[LONG:%ld]", l);
907 break;
908 }
909 case MONO_TYPE_U8: {
910 guint64 l = va_arg (ap, guint64);
911 printf ("[ULONG:%lu]", l);
912 break;
913 }
914 case MONO_TYPE_R4: {
915 double f = va_arg (ap, double);
916 printf ("[FLOAT4:%g]\n", f);
917 break;
918 }
919 case MONO_TYPE_R8: {
920 double f = va_arg (ap, double);
921 printf ("[FLOAT8:%g]\n", f);
922 break;
923 }
924 case MONO_TYPE_VALUETYPE: {
925 MonoMarshalType *info;
926 if (type->data.klass->enumtype) {
927 type = type->data.klass->enum_basetype;
928 goto handle_enum;
929 } else {
930 guint8 *p = va_arg (ap, gpointer);
931 int j, size, align;
932
933 info = mono_marshal_load_type_info (type->data.klass);
934
935 if ((info->native_size == sizeof(float)) &&
936 (info->num_fields == 1) &&
937 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
938 double f = va_arg (ap, double);
939 printf("[FLOAT4:%g]\n", (double) f);
940 break;
941 }
942
943 if ((info->native_size == sizeof(double)) &&
944 (info->num_fields == 1) &&
945 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
946 double f = va_arg (ap, double);
947 printf("[FLOAT8:%g]\n", f);
948 break;
949 }
950
951 size = mono_type_size (type, &align);
952 switch (size) {
953 case 1:
954 case 2:
955 case 4:
956 case 8:
957 printf ("[");
958 for (j = 0; p && j < size; j++)
959 printf ("%02x,", p [j]);
960 printf ("]\n");
961 break;
962 default:
963 printf ("[VALUETYPE]\n");
964 }
965 }
966 break;
967 }
968 case MONO_TYPE_TYPEDBYREF: {
969 guint8 *p = va_arg (ap, gpointer);
970 int j, size, align;
971 size = mono_type_size (type, &align);
972 switch (size) {
973 case 1:
974 case 2:
975 case 4:
976 case 8:
977 printf ("[");
978 for (j = 0; p && j < size; j++)
979 printf ("%02x,", p [j]);
980 printf ("]\n");
981 break;
982 default:
983 printf ("[TYPEDBYREF]\n");
984 }
985 }
986 break;
987 default:
988 printf ("(unknown return type %x)",
989 mono_method_signature (method)->ret->type);
990 }
991
992 ip = ((gint64) __builtin_return_address (0));
993 printf (" ip: %p\n", (gpointer) ip);
994 }
995
996 /*========================= End of Function ========================*/
997
998 /*------------------------------------------------------------------*/
999 /* */
1000 /* Name - catch_SIGILL */
1001 /* */
1002 /* Function - Catch SIGILL as a result of testing for long */
1003 /* displacement facility. */
1004 /* */
1005 /*------------------------------------------------------------------*/
1006
1007 void
1008 catch_SIGILL(int sigNo, siginfo_t *info, void *act) {
1009
1010 has_ld = 0;
1011
1012 }
1013
1014 /*========================= End of Function ========================*/
1015
1016 /*------------------------------------------------------------------*/
1017 /* */
1018 /* Name - mono_arch_cpu_init */
1019 /* */
1020 /* Function - Perform CPU specific initialization to execute */
1021 /* managed code. */
1022 /* */
1023 /*------------------------------------------------------------------*/
1024
1025 void
1026 mono_arch_cpu_init (void)
1027 {
1028 struct sigaction sa,
1029 *oldSa = NULL;
1030 guint mode = 1;
1031
1032 /*--------------------------------------*/
1033 /* Set default rounding mode for FP */
1034 /*--------------------------------------*/
1035 __asm__ ("SRNM\t%0\n\t"
1036 : : "m" (mode));
1037
1038 /*--------------------------------------*/
1039 /* Determine if we have long displace- */
1040 /* ment facility on this processor */
1041 /*--------------------------------------*/
1042 sa.sa_sigaction = catch_SIGILL;
1043 sigemptyset (&sa.sa_mask);
1044 sa.sa_flags = SA_SIGINFO;
1045
1046 sigaction (SIGILL, &sa, oldSa);
1047
1048 /*--------------------------------------*/
1049 /* We test by executing the STY inst */
1050 /*--------------------------------------*/
1051 __asm__ ("LGHI\t0,1\n\t"
1052 "LA\t1,%0\n\t"
1053 ".byte\t0xe3,0x00,0x10,0x00,0x00,0x50\n\t"
1054 : "=m" (has_ld) : : "0", "1");
1055
1056 sigaction (SIGILL, oldSa, NULL);
1057 }
1058
1059 /*========================= End of Function ========================*/
1060
1061 /*------------------------------------------------------------------*/
1062 /* */
1063 /* Name - mono_arch_cpu_optimizazions */
1064 /* */
1065 /* Function - Returns the optimizations supported on this CPU */
1066 /* */
1067 /*------------------------------------------------------------------*/
1068
1069 guint32
1070 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1071 {
1072 guint32 opts = 0;
1073
1074 /*----------------------------------------------------------*/
1075 /* No s390-specific optimizations yet */
1076 /*----------------------------------------------------------*/
1077 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1078 // *exclude_mask = MONO_OPT_INLINE;
1079 return opts;
1080 }
1081
1082 /*========================= End of Function ========================*/
1083
1084 /*------------------------------------------------------------------*/
1085 /* */
1086 /* Name - */
1087 /* */
1088 /* Function - */
1089 /* */
1090 /*------------------------------------------------------------------*/
1091
1092 static gboolean
1093 is_regsize_var (MonoType *t) {
1094 if (t->byref)
1095 return TRUE;
1096 switch (mono_type_get_underlying_type (t)->type) {
1097 case MONO_TYPE_I4:
1098 case MONO_TYPE_U4:
1099 case MONO_TYPE_I:
1100 case MONO_TYPE_I8:
1101 case MONO_TYPE_U8:
1102 case MONO_TYPE_U:
1103 case MONO_TYPE_PTR:
1104 case MONO_TYPE_FNPTR:
1105 return TRUE;
1106 case MONO_TYPE_OBJECT:
1107 case MONO_TYPE_STRING:
1108 case MONO_TYPE_CLASS:
1109 case MONO_TYPE_SZARRAY:
1110 case MONO_TYPE_ARRAY:
1111 return FALSE;
1112 case MONO_TYPE_VALUETYPE:
1113 if (t->data.klass->enumtype)
1114 return is_regsize_var (t->data.klass->enum_basetype);
1115 return FALSE;
1116 }
1117 return FALSE;
1118 }
1119
1120 /*========================= End of Function ========================*/
1121
1122 /*------------------------------------------------------------------*/
1123 /* */
1124 /* Name - mono_arch_get_allocatable_int_vars */
1125 /* */
1126 /* Function - */
1127 /* */
1128 /*------------------------------------------------------------------*/
1129
1130 GList *
1131 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1132 {
1133 GList *vars = NULL;
1134 int i;
1135
1136 for (i = 0; i < cfg->num_varinfo; i++) {
1137 MonoInst *ins = cfg->varinfo [i];
1138 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1139
1140 /* unused vars */
1141 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1142 continue;
1143
1144 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1145 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1146 continue;
1147
1148 /* we can only allocate 32 bit values */
1149 if (is_regsize_var (ins->inst_vtype)) {
1150 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1151 g_assert (i == vmv->idx);
1152 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1153 }
1154 }
1155
1156 return vars;
1157 }
1158
1159 /*========================= End of Function ========================*/
1160
1161 /*------------------------------------------------------------------*/
1162 /* */
1163 /* Name - mono_arch_global_int_regs */
1164 /* */
1165 /* Function - Return a list of usable integer registers. */
1166 /* */
1167 /*------------------------------------------------------------------*/
1168
1169 GList *
1170 mono_arch_get_global_int_regs (MonoCompile *cfg)
1171 {
1172 GList *regs = NULL;
1173 MonoMethodHeader *header;
1174 int i, top = 13;
1175
1176 header = mono_method_get_header (cfg->method);
1177 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1178 cfg->frame_reg = s390_r11;
1179
1180 for (i = 8; i < top; ++i) {
1181 if (cfg->frame_reg != i)
1182 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1183 }
1184
1185 return regs;
1186 }
1187
1188 /*========================= End of Function ========================*/
1189
1190 /*------------------------------------------------------------------*/
1191 /* */
1192 /* Name - mono_arch_flush_icache */
1193 /* */
1194 /* Function - Flush the CPU icache. */
1195 /* */
1196 /*------------------------------------------------------------------*/
1197
1198 void
1199 mono_arch_flush_icache (guint8 *code, gint size)
1200 {
1201 }
1202
1203 /*========================= End of Function ========================*/
1204
1205 /*------------------------------------------------------------------*/
1206 /* */
1207 /* Name - add_general */
1208 /* */
1209 /* Function - Determine code and stack size incremements for a */
1210 /* parameter. */
1211 /* */
1212 /*------------------------------------------------------------------*/
1213
1214 static void inline
1215 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1216 {
1217 if (*gr > S390_LAST_ARG_REG) {
1218 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1219 ainfo->offset = sz->stack_size;
1220 ainfo->reg = STK_BASE;
1221 ainfo->regtype = RegTypeBase;
1222 sz->stack_size += sizeof(long);
1223 sz->local_size += sizeof(long);
1224 sz->offStruct += sizeof(long);
1225 sz->code_size += 12;
1226 } else {
1227 ainfo->reg = *gr;
1228 sz->code_size += 8;
1229 }
1230 (*gr) ++;
1231 }
1232
1233 /*========================= End of Function ========================*/
1234
1235 /*------------------------------------------------------------------*/
1236 /* */
1237 /* Name - add_stackParm */
1238 /* */
1239 /* Function - Determine code and stack size incremements for a */
1240 /* parameter. */
1241 /* */
1242 /*------------------------------------------------------------------*/
1243
1244 static void inline
1245 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1246 {
1247 if (*gr > S390_LAST_ARG_REG) {
1248 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1249 ainfo->reg = STK_BASE;
1250 sz->stack_size += sizeof(gpointer);
1251 sz->offStruct += sizeof(gpointer);
1252 } else {
1253 ainfo->reg = *gr;
1254 }
1255 (*gr) ++;
1256 ainfo->offset = sz->stack_size;
1257 ainfo->offparm = sz->offset;
1258 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1259 ainfo->size = size;
1260 ainfo->regtype = RegTypeStructByAddr;
1261 ainfo->vtsize = size;
1262 sz->parm_size += size;
1263 }
1264
1265 /*========================= End of Function ========================*/
1266
1267 /*------------------------------------------------------------------*/
1268 /* */
1269 /* Name - add_float */
1270 /* */
1271 /* Function - Determine code and stack size incremements for a */
1272 /* float parameter. */
1273 /* */
1274 /*------------------------------------------------------------------*/
1275
1276 static void inline
1277 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1278 {
1279 if ((*fr) <= S390_LAST_FPARG_REG) {
1280 ainfo->regtype = RegTypeFP;
1281 ainfo->reg = *fr;
1282 sz->code_size += 4;
1283 (*fr) += 2;
1284 }
1285 else {
1286 ainfo->offset = sz->stack_size;
1287 ainfo->reg = STK_BASE;
1288 ainfo->regtype = RegTypeBase;
1289 sz->code_size += 4;
1290 sz->stack_size += sizeof(double);
1291 sz->local_size += sizeof(double);
1292 sz->offStruct += sizeof(double);
1293 }
1294 }
1295
1296 /*========================= End of Function ========================*/
1297
1298 /*------------------------------------------------------------------*/
1299 /* */
1300 /* Name - calculate_sizes */
1301 /* */
1302 /* Function - Determine the amount of space required for code */
1303 /* and stack. In addition determine starting points */
1304 /* for stack-based parameters, and area for struct- */
1305 /* ures being returned on the stack. */
1306 /* */
1307 /*------------------------------------------------------------------*/
1308
1309 static CallInfo *
1310 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1311 gboolean string_ctor)
1312 {
1313 guint i, fr, gr, size;
1314 int nParm = sig->hasthis + sig->param_count;
1315 guint32 simpletype, align;
1316 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1317
1318 fr = 0;
1319 gr = s390_r2;
1320 nParm = 0;
1321 cinfo->struct_ret = 0;
1322 sz->retStruct = 0;
1323 sz->offset = 0;
1324 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1325 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1326 sz->code_size = 0;
1327 sz->parm_size = 0;
1328 sz->local_size = 0;
1329
1330 /*----------------------------------------------------------*/
1331 /* We determine the size of the return code/stack in case we*/
1332 /* need to reserve a register to be used to address a stack */
1333 /* area that the callee will use. */
1334 /*----------------------------------------------------------*/
1335
1336 simpletype = mono_type_get_underlying_type (sig->ret)->type;
1337 enum_retvalue:
1338 switch (simpletype) {
1339 case MONO_TYPE_BOOLEAN:
1340 case MONO_TYPE_I1:
1341 case MONO_TYPE_U1:
1342 case MONO_TYPE_I2:
1343 case MONO_TYPE_U2:
1344 case MONO_TYPE_CHAR:
1345 case MONO_TYPE_I4:
1346 case MONO_TYPE_U4:
1347 case MONO_TYPE_I:
1348 case MONO_TYPE_U:
1349 case MONO_TYPE_CLASS:
1350 case MONO_TYPE_OBJECT:
1351 case MONO_TYPE_SZARRAY:
1352 case MONO_TYPE_ARRAY:
1353 case MONO_TYPE_PTR:
1354 case MONO_TYPE_FNPTR:
1355 case MONO_TYPE_STRING:
1356 cinfo->ret.reg = s390_r2;
1357 sz->code_size += 4;
1358 break;
1359 case MONO_TYPE_R4:
1360 case MONO_TYPE_R8:
1361 cinfo->ret.reg = s390_f0;
1362 sz->code_size += 4;
1363 break;
1364 case MONO_TYPE_I8:
1365 case MONO_TYPE_U8:
1366 cinfo->ret.reg = s390_r2;
1367 sz->code_size += 4;
1368 break;
1369 case MONO_TYPE_GENERICINST:
1370 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1371 cinfo->ret.reg = s390_r2;
1372 sz->code_size += 4;
1373 break;
1374 }
1375 /* Fall through */
1376 case MONO_TYPE_VALUETYPE: {
1377 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1378 if (klass->enumtype) {
1379 simpletype = klass->enum_basetype->type;
1380 goto enum_retvalue;
1381 }
1382 if (sig->pinvoke)
1383 size = mono_class_native_size (klass, &align);
1384 else
1385 size = mono_class_value_size (klass, &align);
1386
1387 cinfo->ret.reg = s390_r2;
1388 cinfo->struct_ret = 1;
1389 cinfo->ret.size = size;
1390 cinfo->ret.vtsize = size;
1391 gr++;
1392 break;
1393 }
1394 case MONO_TYPE_TYPEDBYREF:
1395 size = sizeof (MonoTypedRef);
1396 cinfo->ret.reg = s390_r2;
1397 cinfo->struct_ret = 1;
1398 cinfo->ret.size = size;
1399 cinfo->ret.vtsize = size;
1400 gr++;
1401 break;
1402 case MONO_TYPE_VOID:
1403 break;
1404 default:
1405 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1406 }
1407
1408 if (sig->hasthis) {
1409 cinfo->args[nParm].size = sizeof(gpointer);
1410 add_general (&gr, sz, cinfo->args+nParm);
1411 nParm++;
1412 }
1413
1414 /*----------------------------------------------------------*/
1415 /* We determine the size of the parameter code and stack */
1416 /* requirements by checking the types and sizes of the */
1417 /* parameters. */
1418 /*----------------------------------------------------------*/
1419
1420 for (i = 0; i < sig->param_count; ++i) {
1421 /*--------------------------------------------------*/
1422 /* Handle vararg type calls. All args are put on */
1423 /* the stack. */
1424 /*--------------------------------------------------*/
1425 if ((sig->call_convention == MONO_CALL_VARARG) &&
1426 (i == sig->sentinelpos)) {
1427 gr = S390_LAST_ARG_REG + 1;
1428 add_general (&gr, sz, &cinfo->sigCookie);
1429 }
1430
1431 if (sig->params [i]->byref) {
1432 add_general (&gr, sz, cinfo->args+nParm);
1433 cinfo->args[nParm].size = sizeof(gpointer);
1434 nParm++;
1435 continue;
1436 }
1437
1438 simpletype = mono_type_get_underlying_type(sig->params [i])->type;
1439 cinfo->args[nParm].type = simpletype;
1440 switch (simpletype) {
1441 case MONO_TYPE_BOOLEAN:
1442 case MONO_TYPE_I1:
1443 case MONO_TYPE_U1:
1444 cinfo->args[nParm].size = sizeof(char);
1445 add_general (&gr, sz, cinfo->args+nParm);
1446 nParm++;
1447 break;
1448 case MONO_TYPE_I2:
1449 case MONO_TYPE_U2:
1450 case MONO_TYPE_CHAR:
1451 cinfo->args[nParm].size = sizeof(short);
1452 add_general (&gr, sz, cinfo->args+nParm);
1453 nParm++;
1454 break;
1455 case MONO_TYPE_I4:
1456 case MONO_TYPE_U4:
1457 cinfo->args[nParm].size = sizeof(int);
1458 add_general (&gr, sz, cinfo->args+nParm);
1459 nParm++;
1460 break;
1461 case MONO_TYPE_I:
1462 case MONO_TYPE_U:
1463 case MONO_TYPE_PTR:
1464 case MONO_TYPE_FNPTR:
1465 case MONO_TYPE_CLASS:
1466 case MONO_TYPE_OBJECT:
1467 case MONO_TYPE_STRING:
1468 case MONO_TYPE_SZARRAY:
1469 case MONO_TYPE_ARRAY:
1470 cinfo->args[nParm].size = sizeof(gpointer);
1471 add_general (&gr, sz, cinfo->args+nParm);
1472 nParm++;
1473 break;
1474 case MONO_TYPE_I8:
1475 case MONO_TYPE_U8:
1476 cinfo->args[nParm].size = sizeof(long long);
1477 add_general (&gr, sz, cinfo->args+nParm);
1478 nParm++;
1479 break;
1480 case MONO_TYPE_R4:
1481 cinfo->args[nParm].size = sizeof(float);
1482 add_float (&fr, sz, cinfo->args+nParm);
1483 nParm++;
1484 break;
1485 case MONO_TYPE_R8:
1486 cinfo->args[nParm].size = sizeof(double);
1487 add_float (&fr, sz, cinfo->args+nParm);
1488 nParm++;
1489 break;
1490 case MONO_TYPE_GENERICINST:
1491 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1492 cinfo->args[nParm].size = sizeof(gpointer);
1493 add_general (&gr, sz, cinfo->args+nParm);
1494 nParm++;
1495 break;
1496 }
1497 /* Fall through */
1498 case MONO_TYPE_VALUETYPE: {
1499 MonoMarshalType *info;
1500 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1501 if (sig->pinvoke)
1502 size = mono_class_native_size (klass, &align);
1503 else
1504 size = mono_class_value_size (klass, &align);
1505
1506 info = mono_marshal_load_type_info (klass);
1507
1508 if ((info->native_size == sizeof(float)) &&
1509 (info->num_fields == 1) &&
1510 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1511 cinfo->args[nParm].size = sizeof(float);
1512 add_float(&fr, sz, cinfo->args+nParm);
1513 break;
1514 }
1515
1516 if ((info->native_size == sizeof(double)) &&
1517 (info->num_fields == 1) &&
1518 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1519 cinfo->args[nParm].size = sizeof(double);
1520 add_float(&fr, sz, cinfo->args+nParm);
1521 break;
1522 }
1523
1524 cinfo->args[nParm].vtsize = 0;
1525 cinfo->args[nParm].size = 0;
1526
1527 switch (size) {
1528 /*----------------------------------*/
1529 /* On S/390, structures of size 1, */
1530 /* 2, 4, and 8 bytes are passed in */
1531 /* (a) register(s). */
1532 /*----------------------------------*/
1533 case 0:
1534 case 1:
1535 case 2:
1536 case 4:
1537 case 8:
1538 add_general(&gr, sz, cinfo->args+nParm);
1539 cinfo->args[nParm].size = size;
1540 cinfo->args[nParm].regtype = RegTypeStructByVal;
1541 nParm++;
1542 sz->local_size += sizeof(long);
1543 break;
1544 default:
1545 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1546 nParm++;
1547 }
1548 }
1549 break;
1550 case MONO_TYPE_TYPEDBYREF: {
1551 int size = sizeof (MonoTypedRef);
1552
1553 cinfo->args[nParm].vtsize = 0;
1554 cinfo->args[nParm].size = 0;
1555
1556 switch (size) {
1557 /*----------------------------------*/
1558 /* On S/390, structures of size 1, */
1559 /* 2, 4, and 8 bytes are passed in */
1560 /* (a) register(s). */
1561 /*----------------------------------*/
1562 case 0:
1563 case 1:
1564 case 2:
1565 case 4:
1566 case 8:
1567 add_general(&gr, sz, cinfo->args+nParm);
1568 cinfo->args[nParm].size = size;
1569 cinfo->args[nParm].regtype = RegTypeStructByVal;
1570 nParm++;
1571 sz->local_size += sizeof(long);
1572 break;
1573 default:
1574 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1575 nParm++;
1576 }
1577 }
1578 break;
1579 default:
1580 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1581 }
1582 }
1583
1584 /*----------------------------------------------------------*/
1585 /* Handle the case where there are no implicit arguments */
1586 /*----------------------------------------------------------*/
1587 if ((sig->call_convention == MONO_CALL_VARARG) &&
1588 (sig->param_count == sig->sentinelpos)) {
1589 gr = S390_LAST_ARG_REG + 1;
1590 add_general (&gr, sz, &cinfo->sigCookie);
1591 }
1592
1593 /*----------------------------------------------------------*/
1594 /* If we are passing a structure back then if it won't be */
1595 /* in a register(s) then we make room at the end of the */
1596 /* parameters that may have been placed on the stack */
1597 /*----------------------------------------------------------*/
1598 if (cinfo->struct_ret) {
1599 cinfo->ret.offset = sz->stack_size;
1600 switch (cinfo->ret.size) {
1601 case 0:
1602 case 1:
1603 case 2:
1604 case 4:
1605 case 8:
1606 break;
1607 default:
1608 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1609 }
1610 }
1611
1612 cinfo->lastgr = gr;
1613 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1614 sz->offset;
1615 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1616
1617 return (cinfo);
1618 }
1619
1620 /*========================= End of Function ========================*/
1621
1622 /*------------------------------------------------------------------*/
1623 /* */
1624 /* Name - mono_arch_allocate_vars */
1625 /* */
1626 /* Function - Set var information according to the calling */
1627 /* convention for S/390. The local var stuff should */
1628 /* most likely be split in another method. */
1629 /* */
1630 /* Parameter - @m - Compile unit. */
1631 /* */
1632 /*------------------------------------------------------------------*/
1633
1634 void
1635 mono_arch_allocate_vars (MonoCompile *cfg)
1636 {
1637 MonoMethodSignature *sig;
1638 MonoMethodHeader *header;
1639 MonoInst *inst;
1640 CallInfo *cinfo;
1641 size_data sz;
1642 int iParm, iVar, offset, size, align, curinst;
1643 int frame_reg = STK_BASE;
1644 int sArg, eArg;
1645
1646 header = mono_method_get_header (cfg->method);
1647
1648 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1649
1650 /*---------------------------------------------------------*/
1651 /* We use the frame register also for any method that has */
1652 /* filter clauses. This way, when the handlers are called, */
1653 /* the code will reference local variables using the frame */
1654 /* reg instead of the stack pointer: if we had to restore */
1655 /* the stack pointer, we'd corrupt the method frames that */
1656 /* are already on the stack (since filters get called */
1657 /* before stack unwinding happens) when the filter code */
1658 /* would call any method. */
1659 /*---------------------------------------------------------*/
1660 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1661 frame_reg = s390_r11;
1662
1663 cfg->frame_reg = frame_reg;
1664
1665 if (frame_reg != STK_BASE)
1666 cfg->used_int_regs |= 1 << frame_reg;
1667
1668 sig = mono_method_signature (cfg->method);
1669
1670 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1671
1672 if (cinfo->struct_ret) {
1673 cfg->ret->opcode = OP_REGVAR;
1674 cfg->ret->inst_c0 = s390_r2;
1675 } else {
1676 switch (mono_type_get_underlying_type (sig->ret)->type) {
1677 case MONO_TYPE_VOID:
1678 break;
1679 default:
1680 cfg->ret->opcode = OP_REGVAR;
1681 cfg->ret->dreg = s390_r2;
1682 break;
1683 }
1684 }
1685
1686 /*--------------------------------------------------------------*/
1687 /* local vars are at a positive offset from the stack pointer */
1688 /* also note that if the function uses alloca, we use s390_r11 */
1689 /* to point at the local variables. */
1690 /* add parameter area size for called functions */
1691 /*--------------------------------------------------------------*/
1692 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1693 cfg->sig_cookie = 0;
1694
1695 if (cinfo->struct_ret) {
1696 inst = cfg->ret;
1697 offset = S390_ALIGN(offset, sizeof(gpointer));
1698 inst->inst_offset = offset;
1699 inst->opcode = OP_REGOFFSET;
1700 inst->inst_basereg = frame_reg;
1701 offset += sizeof(gpointer);
1702 if ((sig->call_convention == MONO_CALL_VARARG) &&
1703 (!retFitsInReg (cinfo->ret.size)))
1704 cfg->sig_cookie += cinfo->ret.size;
1705 }
1706
1707 if (sig->hasthis) {
1708 inst = cfg->varinfo [0];
1709 if (inst->opcode != OP_REGVAR) {
1710 inst->opcode = OP_REGOFFSET;
1711 inst->inst_basereg = frame_reg;
1712 offset = S390_ALIGN(offset, sizeof(gpointer));
1713 inst->inst_offset = offset;
1714 offset += sizeof (gpointer);
1715 }
1716 curinst = sArg = 1;
1717 } else {
1718 curinst = sArg = 0;
1719 }
1720
1721 eArg = sig->param_count + sArg;
1722
1723 if (sig->call_convention == MONO_CALL_VARARG)
1724 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1725
1726 for (iParm = sArg; iParm < eArg; ++iParm) {
1727 inst = cfg->varinfo [curinst];
1728 if (inst->opcode != OP_REGVAR) {
1729 switch (cinfo->args[iParm].regtype) {
1730 case RegTypeStructByAddr :
1731 if (cinfo->args[iParm].reg == STK_BASE) {
1732 inst->opcode = OP_S390_LOADARG;
1733 inst->inst_basereg = frame_reg;
1734 offset = S390_ALIGN(offset, sizeof(long));
1735 inst->inst_offset = offset;
1736 size = abs(cinfo->args[iParm].vtsize);
1737 inst->backend.arg_info = cinfo->args[iParm].offset;
1738 } else {
1739 inst->opcode = OP_S390_ARGREG;
1740 inst->inst_basereg = frame_reg;
1741 size = sizeof(gpointer);
1742 offset = S390_ALIGN(offset, size);
1743 inst->inst_offset = offset;
1744 inst->backend.arg_info = cinfo->args[iParm].offset;
1745 }
1746 break;
1747 case RegTypeStructByVal :
1748 inst->opcode = OP_S390_ARGPTR;
1749 inst->inst_basereg = frame_reg;
1750 size = cinfo->args[iParm].size;
1751 offset = S390_ALIGN(offset, size);
1752 inst->inst_offset = offset;
1753 inst->backend.arg_info = cinfo->args[iParm].offset;
1754 break;
1755 default :
1756 if (cinfo->args[iParm].reg != STK_BASE) {
1757 inst->opcode = OP_REGOFFSET;
1758 inst->inst_basereg = frame_reg;
1759 size = (cinfo->args[iParm].size < 8
1760 ? sizeof(int)
1761 : sizeof(long));
1762 offset = S390_ALIGN(offset, size);
1763 inst->inst_offset = offset;
1764 } else {
1765 inst->opcode = OP_S390_STKARG;
1766 inst->inst_basereg = frame_reg;
1767 size = ((cinfo->args[iParm].size < 8)
1768 ? 8 - cinfo->args[iParm].size
1769 : 0);
1770 inst->inst_offset = cinfo->args[iParm].offset +
1771 size;
1772 inst->backend.arg_info = 0;
1773 size = sizeof(long);
1774 }
1775 }
1776 if ((sig->call_convention == MONO_CALL_VARARG) &&
1777 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1778 (iParm < sig->sentinelpos))
1779 cfg->sig_cookie += size;
1780
1781 offset += size;
1782 }
1783 curinst++;
1784 }
1785
1786 curinst = cfg->locals_start;
1787 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1788 inst = cfg->varinfo [iVar];
1789 if ((inst->flags & MONO_INST_IS_DEAD) ||
1790 (inst->opcode == OP_REGVAR))
1791 continue;
1792
1793 /*--------------------------------------------------*/
1794 /* inst->backend.is_pinvoke indicates native sized value types, */
1795 /* this is used by the pinvoke wrappers when they */
1796 /* call functions returning structure */
1797 /*--------------------------------------------------*/
1798 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1799 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1800 else
1801 size = mono_type_size (inst->inst_vtype, &align);
1802
1803 offset = S390_ALIGN(offset, align);
1804 inst->inst_offset = offset;
1805 inst->opcode = OP_REGOFFSET;
1806 inst->inst_basereg = frame_reg;
1807 offset += size;
1808 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
1809 iVar, inst->inst_offset, size));
1810 }
1811
1812 /*------------------------------------------------------*/
1813 /* Allow space for the trace method stack area if needed*/
1814 /*------------------------------------------------------*/
1815 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
1816 offset += S390_TRACE_STACK_SIZE;
1817
1818 /*------------------------------------------------------*/
1819 /* Reserve space to save LMF and caller saved registers */
1820 /*------------------------------------------------------*/
1821 if (cfg->method->save_lmf)
1822 offset += sizeof (MonoLMF);
1823
1824 /*------------------------------------------------------*/
1825 /* align the offset */
1826 /*------------------------------------------------------*/
1827 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1828
1829 }
1830
1831 /*========================= End of Function ========================*/
1832
1833 /*------------------------------------------------------------------*/
1834 /* */
1835 /* Name - mono_arch_call_opcode */
1836 /* */
1837 /* Function - Take the arguments and generate the arch-specific */
1838 /* instructions to properly call the function. This */
1839 /* includes pushing, moving argments to the correct */
1840 /* etc. */
1841 /* */
1842 /*------------------------------------------------------------------*/
1843
1844 MonoCallInst*
1845 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1846 MonoCallInst *call, int is_virtual) {
1847 MonoInst *in;
1848 MonoCallArgParm *arg;
1849 MonoMethodSignature *sig;
1850 int i, n, lParamArea;
1851 CallInfo *cinfo;
1852 ArgInfo *ainfo;
1853 size_data sz;
1854
1855 sig = call->signature;
1856 n = sig->param_count + sig->hasthis;
1857 DEBUG (g_print ("Call requires: %d parameters\n",n));
1858
1859 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1860
1861 call->stack_usage = MAX(sz.stack_size, call->stack_usage);
1862 lParamArea = MAX((call->stack_usage - S390_MINIMAL_STACK_SIZE - sz.parm_size), 0);
1863 cfg->param_area = MAX (((signed) cfg->param_area), lParamArea);
1864 cfg->flags |= MONO_CFG_HAS_CALLS;
1865
1866 if (cinfo->struct_ret)
1867 call->used_iregs |= 1 << cinfo->ret.reg;
1868
1869 for (i = 0; i < n; ++i) {
1870 ainfo = cinfo->args + i;
1871
1872 if (!(sig->pinvoke) &&
1873 (sig->call_convention == MONO_CALL_VARARG) &&
1874 (i == sig->sentinelpos)) {
1875 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
1876 }
1877
1878 if (is_virtual && i == 0) {
1879 /* the argument will be attached to the call instrucion */
1880 in = call->args [i];
1881 call->used_iregs |= 1 << ainfo->reg;
1882 } else {
1883 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG);
1884 in = call->args [i];
1885 arg->ins.cil_code = in->cil_code;
1886 arg->ins.inst_left = in;
1887 arg->ins.type = in->type;
1888
1889 /* prepend, we'll need to reverse them later */
1890 arg->ins.next = call->out_args;
1891 call->out_args = (MonoInst *) arg;
1892 arg->ins.inst_right = (MonoInst *) call;
1893 if (ainfo->regtype == RegTypeGeneral) {
1894 arg->ins.backend.reg3 = ainfo->reg;
1895 call->used_iregs |= 1 << ainfo->reg;
1896 } else if (ainfo->regtype == RegTypeStructByAddr) {
1897 call->used_iregs |= 1 << ainfo->reg;
1898 arg->ins.sreg1 = ainfo->reg;
1899 arg->ins.opcode = OP_OUTARG_VT;
1900 arg->size = -ainfo->vtsize;
1901 arg->offset = ainfo->offset;
1902 arg->offPrm = ainfo->offparm + sz.offStruct;
1903 } else if (ainfo->regtype == RegTypeStructByVal) {
1904 if (ainfo->reg != STK_BASE)
1905 call->used_iregs |= 1 << ainfo->reg;
1906 arg->ins.sreg1 = ainfo->reg;
1907 arg->ins.opcode = OP_OUTARG_VT;
1908 arg->size = ainfo->size;
1909 arg->offset = ainfo->offset;
1910 arg->offPrm = ainfo->offparm + sz.offStruct;
1911 } else if (ainfo->regtype == RegTypeBase) {
1912 arg->ins.opcode = OP_OUTARG_MEMBASE;
1913 arg->ins.sreg1 = ainfo->reg;
1914 arg->size = ainfo->size;
1915 arg->offset = ainfo->offset;
1916 call->used_iregs |= 1 << ainfo->reg;
1917 } else if (ainfo->regtype == RegTypeFP) {
1918 arg->ins.backend.reg3 = ainfo->reg;
1919 call->used_fregs |= 1 << ainfo->reg;
1920 if (ainfo->size == 4)
1921 arg->ins.opcode = OP_OUTARG_R4;
1922 else
1923 arg->ins.opcode = OP_OUTARG_R8;
1924 } else {
1925 g_assert_not_reached ();
1926 }
1927 }
1928 }
1929
1930 /*
1931 * Handle the case where there are no implicit arguments
1932 */
1933 if (!(sig->pinvoke) &&
1934 (sig->call_convention == MONO_CALL_VARARG) &&
1935 (n == sig->sentinelpos)) {
1936 emit_sig_cookie (cfg, call, cinfo, sizeof(MonoType *));
1937 }
1938
1939 /*
1940 * Reverse the call->out_args list.
1941 */
1942 {
1943 MonoInst *prev = NULL, *list = call->out_args, *next;
1944 while (list) {
1945 next = list->next;
1946 list->next = prev;
1947 prev = list;
1948 list = next;
1949 }
1950 call->out_args = prev;
1951 }
1952
1953 g_free (cinfo);
1954 return call;
1955 }
1956
1957 /*========================= End of Function ========================*/
1958
1959 /*------------------------------------------------------------------*/
1960 /* */
1961 /* Name - emit_sig_cookie. */
1962 /* */
1963 /* Function - For variable length parameter lists construct a */
1964 /* signature cookie and emit it. */
1965 /* */
1966 /*------------------------------------------------------------------*/
1967
1968 static void
1969 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call,
1970 CallInfo *cinfo, int argSize)
1971 {
1972 MonoCallArgParm *arg;
1973 MonoMethodSignature *tmpSig;
1974 MonoInst *sigArg;
1975
1976 cfg->disable_aot = TRUE;
1977
1978 /*----------------------------------------------------------*/
1979 /* mono_ArgIterator_Setup assumes the signature cookie is */
1980 /* passed first and all the arguments which were before it */
1981 /* passed on the stack after the signature. So compensate */
1982 /* by passing a different signature. */
1983 /*----------------------------------------------------------*/
1984 tmpSig = mono_metadata_signature_dup (call->signature);
1985 tmpSig->param_count -= call->signature->sentinelpos;
1986 tmpSig->sentinelpos = 0;
1987 if (tmpSig->param_count > 0)
1988 memcpy (tmpSig->params,
1989 call->signature->params + call->signature->sentinelpos,
1990 tmpSig->param_count * sizeof(MonoType *));
1991
1992 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
1993 sigArg->inst_p0 = tmpSig;
1994
1995 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG_MEMBASE);
1996 arg->ins.inst_left = sigArg;
1997 arg->ins.inst_right = (MonoInst *) call;
1998 arg->size = argSize;
1999 arg->offset = cinfo->sigCookie.offset;
2000
2001 /* prepend, we'll need to reverse them later */
2002 arg->ins.next = call->out_args;
2003 call->out_args = (MonoInst *) arg;
2004 }
2005
2006 /*========================= End of Function ========================*/
2007
2008 /*------------------------------------------------------------------*/
2009 /* */
2010 /* Name - mono_arch_instrument_mem_needs */
2011 /* */
2012 /* Function - Allow tracing to work with this interface (with */
2013 /* an optional argument). */
2014 /* */
2015 /*------------------------------------------------------------------*/
2016
2017 void
2018 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2019 {
2020 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2021 *stack = 0;
2022 /* split prolog-epilog requirements? */
2023 *code = 50; /* max bytes needed: check this number */
2024 }
2025
2026 /*========================= End of Function ========================*/
2027
2028 /*------------------------------------------------------------------*/
2029 /* */
2030 /* Name - mono_arch_instrument_prolog */
2031 /* */
2032 /* Function - Create an "instrumented" prolog. */
2033 /* */
2034 /*------------------------------------------------------------------*/
2035
2036 void*
2037 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2038 gboolean enable_arguments)
2039 {
2040 guchar *code = p;
2041 int parmOffset,
2042 fpOffset,
2043 baseReg;
2044
2045 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2046 if (cfg->method->save_lmf)
2047 parmOffset -= sizeof(MonoLMF);
2048 fpOffset = parmOffset + (5*sizeof(gpointer));
2049 if ((!has_ld) && (fpOffset > 4096)) {
2050 s390_lgr (code, s390_r12, STK_BASE);
2051 baseReg = s390_r12;
2052 while (fpOffset > 4096) {
2053 s390_aghi (code, baseReg, 4096);
2054 fpOffset -= 4096;
2055 parmOffset -= 4096;
2056 }
2057 } else {
2058 baseReg = STK_BASE;
2059 }
2060
2061 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2062 if (has_ld) {
2063 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2064 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2065 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2066 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2067 } else {
2068 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2069 s390_std (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2070 s390_std (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2071 s390_std (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2072 }
2073 s390_basr (code, s390_r13, 0);
2074 s390_j (code, 10);
2075 s390_llong(code, cfg->method);
2076 s390_llong(code, func);
2077 s390_lg (code, s390_r2, 0, s390_r13, 4);
2078 if (has_ld)
2079 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2080 else
2081 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2082 s390_lgr (code, s390_r4, STK_BASE);
2083 s390_aghi (code, s390_r4, cfg->stack_usage);
2084 s390_lg (code, s390_r1, 0, s390_r13, 12);
2085 s390_basr (code, s390_r14, s390_r1);
2086 if (has_ld) {
2087 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2088 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2089 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2090 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2091 } else {
2092 s390_ld (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2093 s390_ld (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2094 s390_ld (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2095 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2096 }
2097 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2098
2099 return code;
2100 }
2101
2102 /*========================= End of Function ========================*/
2103
2104 /*------------------------------------------------------------------*/
2105 /* */
2106 /* Name - mono_arch_instrument_epilog */
2107 /* */
2108 /* Function - Create an epilog that will handle the returned */
2109 /* values used in instrumentation. */
2110 /* */
2111 /*------------------------------------------------------------------*/
2112
2113 void*
2114 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2115 {
2116 guchar *code = p;
2117 int save_mode = SAVE_NONE,
2118 saveOffset;
2119 MonoMethod *method = cfg->method;
2120 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2121
2122 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2123 if (method->save_lmf)
2124 saveOffset -= sizeof(MonoLMF);
2125
2126 handle_enum:
2127 switch (rtype) {
2128 case MONO_TYPE_VOID:
2129 /* special case string .ctor icall */
2130 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2131 save_mode = SAVE_ONE;
2132 else
2133 save_mode = SAVE_NONE;
2134 break;
2135 case MONO_TYPE_I8:
2136 case MONO_TYPE_U8:
2137 save_mode = SAVE_ONE;
2138 break;
2139 case MONO_TYPE_R4:
2140 save_mode = SAVE_R4;
2141 break;
2142 case MONO_TYPE_R8:
2143 save_mode = SAVE_R8;
2144 break;
2145 case MONO_TYPE_VALUETYPE:
2146 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2147 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
2148 goto handle_enum;
2149 }
2150 save_mode = SAVE_STRUCT;
2151 break;
2152 default:
2153 save_mode = SAVE_ONE;
2154 break;
2155 }
2156
2157 switch (save_mode) {
2158 case SAVE_ONE:
2159 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2160 if (enable_arguments) {
2161 s390_lgr (code, s390_r3, s390_r2);
2162 }
2163 break;
2164 case SAVE_R4:
2165 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2166 if (enable_arguments) {
2167 s390_ldebr (code, s390_f0, s390_f0);
2168 }
2169 break;
2170 case SAVE_R8:
2171 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2172 break;
2173 case SAVE_STRUCT:
2174 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2175 if (enable_arguments) {
2176 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2177 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2178 }
2179 break;
2180 case SAVE_NONE:
2181 default:
2182 break;
2183 }
2184
2185 s390_basr (code, s390_r13, 0);
2186 s390_j (code, 10);
2187 s390_llong(code, cfg->method);
2188 s390_llong(code, func);
2189 s390_lg (code, s390_r2, 0, s390_r13, 4);
2190 s390_lg (code, s390_r1, 0, s390_r13, 12);
2191 s390_basr (code, s390_r14, s390_r1);
2192
2193 switch (save_mode) {
2194 case SAVE_ONE:
2195 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2196 break;
2197 case SAVE_R4:
2198 case SAVE_R8:
2199 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2200 break;
2201 case SAVE_STRUCT:
2202 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2203 break;
2204 case SAVE_NONE:
2205 default:
2206 break;
2207 }
2208
2209 return code;
2210 }
2211
2212 /*========================= End of Function ========================*/
2213
2214 /*------------------------------------------------------------------*/
2215 /* */
2216 /* Name - peephole_pass */
2217 /* */
2218 /* Function - Form a peephole pass at the code looking for */
2219 /* simple optimizations. */
2220 /* */
2221 /*------------------------------------------------------------------*/
2222
2223 static void
2224 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2225 {
2226 MonoInst *ins, *last_ins = NULL;
2227 ins = bb->code;
2228
2229 while (ins) {
2230
2231 switch (ins->opcode) {
2232 case OP_MUL_IMM:
2233 /* remove unnecessary multiplication with 1 */
2234 if (ins->inst_imm == 1) {
2235 if (ins->dreg != ins->sreg1) {
2236 ins->opcode = OP_MOVE;
2237 } else {
2238 last_ins->next = ins->next;
2239 ins = ins->next;
2240 continue;
2241 }
2242 }
2243 break;
2244 case OP_LOAD_MEMBASE:
2245 case OP_LOADI4_MEMBASE:
2246 /*
2247 * OP_STORE_MEMBASE_REG reg, offset(basereg)
2248 * OP_LOAD_MEMBASE offset(basereg), reg
2249 */
2250 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
2251 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
2252 ins->inst_basereg == last_ins->inst_destbasereg &&
2253 ins->inst_offset == last_ins->inst_offset) {
2254 if (ins->dreg == last_ins->sreg1) {
2255 last_ins->next = ins->next;
2256 ins = ins->next;
2257 continue;
2258 } else {
2259 ins->opcode = OP_MOVE;
2260 ins->sreg1 = last_ins->sreg1;
2261 }
2262
2263 /*
2264 * Note: reg1 must be different from the basereg in the second load
2265 * OP_LOAD_MEMBASE offset(basereg), reg1
2266 * OP_LOAD_MEMBASE offset(basereg), reg2
2267 * -->
2268 * OP_LOAD_MEMBASE offset(basereg), reg1
2269 * OP_MOVE reg1, reg2
2270 */
2271 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
2272 || last_ins->opcode == OP_LOAD_MEMBASE) &&
2273 ins->inst_basereg != last_ins->dreg &&
2274 ins->inst_basereg == last_ins->inst_basereg &&
2275 ins->inst_offset == last_ins->inst_offset) {
2276
2277 if (ins->dreg == last_ins->dreg) {
2278 last_ins->next = ins->next;
2279 ins = ins->next;
2280 continue;
2281 } else {
2282 ins->opcode = OP_MOVE;
2283 ins->sreg1 = last_ins->dreg;
2284 }
2285
2286 }
2287 break;
2288 case OP_LOADU1_MEMBASE:
2289 case OP_LOADI1_MEMBASE:
2290 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
2291 ins->inst_basereg == last_ins->inst_destbasereg &&
2292 ins->inst_offset == last_ins->inst_offset) {
2293 ins->opcode = (ins->opcode == OP_LOADI1_MEMBASE) ? CEE_CONV_I1 : CEE_CONV_U1;
2294 ins->sreg1 = last_ins->sreg1;
2295 }
2296 break;
2297 case OP_LOADU2_MEMBASE:
2298 case OP_LOADI2_MEMBASE:
2299 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
2300 ins->inst_basereg == last_ins->inst_destbasereg &&
2301 ins->inst_offset == last_ins->inst_offset) {
2302 ins->opcode = (ins->opcode == OP_LOADI2_MEMBASE) ? CEE_CONV_I2 : CEE_CONV_U2;
2303 ins->sreg1 = last_ins->sreg1;
2304 }
2305 break;
2306 case CEE_CONV_I4:
2307 case CEE_CONV_U4:
2308 case OP_MOVE:
2309 /*
2310 * OP_MOVE reg, reg
2311 */
2312 if (ins->dreg == ins->sreg1) {
2313 if (last_ins)
2314 last_ins->next = ins->next;
2315 ins = ins->next;
2316 continue;
2317 }
2318 /*
2319 * OP_MOVE sreg, dreg
2320 * OP_MOVE dreg, sreg
2321 */
2322 if (last_ins && last_ins->opcode == OP_MOVE &&
2323 ins->sreg1 == last_ins->dreg &&
2324 ins->dreg == last_ins->sreg1) {
2325 last_ins->next = ins->next;
2326 ins = ins->next;
2327 continue;
2328 }
2329 break;
2330 }
2331 last_ins = ins;
2332 ins = ins->next;
2333 }
2334 bb->last_ins = last_ins;
2335 }
2336
2337 /*========================= End of Function ========================*/
2338
2339 /*------------------------------------------------------------------*/
2340 /* */
2341 /* Name - mono_arch_local_regalloc. */
2342 /* */
2343 /* Function - We first scan the list of instructions and we */
2344 /* save the liveness information of each register */
2345 /* (when the register is first used, when its value */
2346 /* is set etc.). We also reverse the list of instr- */
2347 /* uctions (in the InstList list) because assigning */
2348 /* registers backwards allows for more tricks to be */
2349 /* used. */
2350 /* */
2351 /*------------------------------------------------------------------*/
2352
2353 void
2354 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2355 {
2356 mono_local_regalloc(cfg, bb);
2357 }
2358
2359 /*========================= End of Function ========================*/
2360
2361 /*------------------------------------------------------------------*/
2362 /* */
2363 /* Name - emit_float_to_int */
2364 /* */
2365 /* Function - Create instructions which will convert a floating */
2366 /* point value to integer. */
2367 /* */
2368 /*------------------------------------------------------------------*/
2369
2370 static guchar*
2371 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2372 {
2373 /* sreg is a float, dreg is an integer reg. */
2374 if (is_signed) {
2375 s390_cfdbr (code, dreg, 5, sreg);
2376 switch (size) {
2377 case 1:
2378 s390_lghi (code, s390_r0, 0);
2379 s390_lghi (code, s390_r13, 0xff);
2380 s390_ltgr (code, dreg, dreg);
2381 s390_jnl (code, 4);
2382 s390_lghi (code, s390_r0, 0x80);
2383 s390_ngr (code, dreg, s390_r13);
2384 s390_ogr (code, dreg, s390_r0);
2385 break;
2386 }
2387 } else {
2388 short *o[1];
2389 s390_basr (code, s390_r13, 0);
2390 s390_j (code, 10);
2391 s390_llong (code, 0x41e0000000000000);
2392 s390_llong (code, 0x41f0000000000000);
2393 s390_ldr (code, s390_f15, sreg);
2394 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2395 s390_jl (code, 0); CODEPTR (code, o[0]);
2396 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2397 s390_cfdbr (code, dreg, 7, s390_f15);
2398 s390_j (code, 4);
2399 PTRSLOT (code, o[0]);
2400 s390_cfdbr (code, dreg, 5, sreg);
2401 switch (size) {
2402 case 1:
2403 s390_lghi (code, s390_r0, 0xff);
2404 s390_ngr (code, dreg, s390_r0);
2405 break;
2406 case 2:
2407 s390_lghi (code, s390_r0, -1);
2408 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2409 s390_ngr (code, dreg, s390_r0);
2410 break;
2411 }
2412 }
2413 return code;
2414 }
2415
2416 /*========================= End of Function ========================*/
2417
2418 /*------------------------------------------------------------------*/
2419 /* */
2420 /* Name - mono_arch_output_basic_block */
2421 /* */
2422 /* Function - Perform the "real" work of emitting instructions */
2423 /* that will do the work of in the basic block. */
2424 /* */
2425 /*------------------------------------------------------------------*/
2426
2427 void
2428 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2429 {
2430 MonoInst *ins;
2431 MonoCallInst *call;
2432 guint offset;
2433 guint8 *code = cfg->native_code + cfg->code_len;
2434 MonoInst *last_ins = NULL;
2435 guint last_offset = 0;
2436 int max_len, cpos, src2;
2437
2438 if (cfg->opt & MONO_OPT_PEEPHOLE)
2439 peephole_pass (cfg, bb);
2440
2441 /* we don't align basic blocks of loops on s390 */
2442
2443 if (cfg->verbose_level > 2)
2444 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2445
2446 cpos = bb->max_offset;
2447
2448 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2449 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2450 //g_assert (!mono_compile_aot);
2451 //cpos += 6;
2452 //if (bb->cil_code)
2453 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2454 /* this is not thread save, but good enough */
2455 /* fixme: howto handle overflows? */
2456 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2457 }
2458
2459 ins = bb->code;
2460 while (ins) {
2461 offset = code - cfg->native_code;
2462
2463 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2464
2465 if (offset > (cfg->code_size - max_len - 16)) {
2466 cfg->code_size *= 2;
2467 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2468 code = cfg->native_code + offset;
2469 }
2470
2471 mono_debug_record_line_number (cfg, ins, offset);
2472
2473 switch (ins->opcode) {
2474 case OP_STOREI1_MEMBASE_IMM: {
2475 s390_lghi (code, s390_r0, ins->inst_imm);
2476 S390_LONG (code, stcy, stc, s390_r0, 0,
2477 ins->inst_destbasereg, ins->inst_offset);
2478 }
2479 break;
2480 case OP_STOREI2_MEMBASE_IMM: {
2481 s390_lghi (code, s390_r0, ins->inst_imm);
2482 S390_LONG (code, sthy, sth, s390_r0, 0,
2483 ins->inst_destbasereg, ins->inst_offset);
2484 }
2485 break;
2486 case OP_STOREI4_MEMBASE_IMM: {
2487 if (s390_is_imm16(ins->inst_imm)) {
2488 s390_lghi (code, s390_r0, ins->inst_imm);
2489 } else {
2490 s390_basr (code, s390_r13, 0);
2491 s390_j (code, 6);
2492 s390_llong(code, ins->inst_imm);
2493 s390_lg (code, s390_r0, 0, s390_r13, 4);
2494 }
2495 S390_LONG (code, sty, st, s390_r0, 0,
2496 ins->inst_destbasereg, ins->inst_offset);
2497 }
2498 break;
2499 case OP_STORE_MEMBASE_IMM:
2500 case OP_STOREI8_MEMBASE_IMM: {
2501 if (s390_is_imm16(ins->inst_imm)) {
2502 s390_lghi (code, s390_r0, ins->inst_imm);
2503 } else {
2504 s390_basr (code, s390_r13, 0);
2505 s390_j (code, 6);
2506 s390_llong(code, ins->inst_imm);
2507 s390_lg (code, s390_r0, 0, s390_r13, 4);
2508 }
2509 S390_LONG (code, stg, stg, s390_r0, 0,
2510 ins->inst_destbasereg, ins->inst_offset);
2511 }
2512 break;
2513 case OP_STOREI1_MEMBASE_REG: {
2514 S390_LONG (code, stcy, stc, ins->sreg1, 0,
2515 ins->inst_destbasereg, ins->inst_offset);
2516 }
2517 break;
2518 case OP_STOREI2_MEMBASE_REG: {
2519 S390_LONG (code, sthy, sth, ins->sreg1, 0,
2520 ins->inst_destbasereg, ins->inst_offset);
2521 }
2522 break;
2523 case OP_STOREI4_MEMBASE_REG: {
2524 S390_LONG (code, sty, st, ins->sreg1, 0,
2525 ins->inst_destbasereg, ins->inst_offset);
2526 }
2527 break;
2528 case OP_STORE_MEMBASE_REG:
2529 case OP_STOREI8_MEMBASE_REG: {
2530 S390_LONG (code, stg, stg, ins->sreg1, 0,
2531 ins->inst_destbasereg, ins->inst_offset);
2532 }
2533 break;
2534 case CEE_LDIND_I:
2535 case CEE_LDIND_I4: {
2536 s390_basr (code, s390_r13, 0);
2537 s390_j (code, 6);
2538 s390_llong(code, ins->inst_p0);
2539 s390_lg (code, s390_r13, 0, s390_r13, 4);
2540 s390_lgf (code, ins->dreg, 0, s390_r13, 0);
2541 }
2542 break;
2543 case CEE_LDIND_U4: {
2544 s390_basr (code, s390_r13, 0);
2545 s390_j (code, 6);
2546 s390_llong(code, ins->inst_p0);
2547 s390_lg (code, s390_r13, 0, s390_r13, 4);
2548 s390_llgf (code, ins->dreg, 0, s390_r13, 0);
2549 }
2550 break;
2551 case OP_LOADU4_MEM:
2552 g_assert_not_reached ();
2553 break;
2554 case OP_LOAD_MEMBASE:
2555 case OP_LOADI8_MEMBASE: {
2556 S390_LONG (code, lg, lg, ins->dreg, 0,
2557 ins->inst_basereg, ins->inst_offset);
2558 }
2559 break;
2560 case OP_LOADI4_MEMBASE: {
2561 S390_LONG (code, lgf, lgf, ins->dreg, 0,
2562 ins->inst_basereg, ins->inst_offset);
2563 }
2564 break;
2565 case OP_LOADU4_MEMBASE: {
2566 S390_LONG (code, llgf, llgf, ins->dreg, 0,
2567 ins->inst_basereg, ins->inst_offset);
2568 }
2569 break;
2570 case OP_LOADU1_MEMBASE: {
2571 S390_LONG (code, llgc, llgc, ins->dreg, 0,
2572 ins->inst_basereg, ins->inst_offset);
2573 }
2574 break;
2575 case OP_LOADI1_MEMBASE: {
2576 S390_LONG (code, lgb, lgb, ins->dreg, 0,
2577 ins->inst_basereg, ins->inst_offset);
2578 }
2579 break;
2580 case OP_LOADU2_MEMBASE: {
2581 S390_LONG (code, llgh, llgh, ins->dreg, 0,
2582 ins->inst_basereg, ins->inst_offset);
2583 }
2584 break;
2585 case OP_LOADI2_MEMBASE: {
2586 S390_LONG (code, lgh, lgh, ins->dreg, 0,
2587 ins->inst_basereg, ins->inst_offset);
2588 }
2589 break;
2590 case CEE_CONV_I1: {
2591 s390_lghi (code, s390_r0, 0x80);
2592 if (ins->dreg != ins->sreg1) {
2593 s390_lgr (code, ins->dreg, ins->sreg1);
2594 }
2595 s390_ngr (code, s390_r0, ins->sreg1);
2596 s390_jz (code, 9);
2597 s390_lghi (code, s390_r13, -1);
2598 s390_sllg (code, s390_r13, s390_r13, 0, 8);
2599 s390_ogr (code, ins->dreg, s390_r13);
2600 }
2601 break;
2602 case CEE_CONV_I2: {
2603 s390_lghi (code, s390_r0, 0x80);
2604 s390_sllg (code, s390_r0, s390_r0, 0, 8);
2605 if (ins->dreg != ins->sreg1) {
2606 s390_lgr (code, ins->dreg, ins->sreg1);
2607 }
2608 s390_ngr (code, s390_r0, ins->sreg1);
2609 s390_jz (code, 9);
2610 s390_lghi (code, s390_r13, -1);
2611 s390_sllg (code, s390_r13, s390_r13, 0, 16);
2612 s390_ogr (code, ins->dreg, s390_r13);
2613 }
2614 break;
2615 case CEE_CONV_U1: {
2616 s390_lghi (code, s390_r0, 0xff);
2617 if (ins->dreg != ins->sreg1) {
2618 s390_lgr (code, ins->dreg, ins->sreg1);
2619 }
2620 s390_ngr (code, ins->dreg, s390_r0);
2621 }
2622 break;
2623 case CEE_CONV_U2: {
2624 s390_lghi (code, s390_r0, -1);
2625 s390_sllg (code, s390_r0, s390_r0, 0, 16);
2626 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2627 if (ins->dreg != ins->sreg1) {
2628 s390_lgr (code, ins->dreg, ins->sreg1);
2629 }
2630 s390_ngr (code, ins->dreg, s390_r0);
2631 }
2632 break;
2633 case OP_COMPARE:
2634 case OP_LCOMPARE: {
2635 if ((ins->next) &&
2636 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2637 s390_clgr (code, ins->sreg1, ins->sreg2);
2638 else
2639 s390_cgr (code, ins->sreg1, ins->sreg2);
2640 }
2641 break;
2642 case OP_COMPARE_IMM: {
2643 if (s390_is_imm16 (ins->inst_imm)) {
2644 s390_lghi (code, s390_r0, ins->inst_imm);
2645 if ((ins->next) &&
2646 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2647 s390_clgr (code, ins->sreg1, s390_r0);
2648 else
2649 s390_cgr (code, ins->sreg1, s390_r0);
2650 }
2651 else {
2652 s390_basr (code, s390_r13, 0);
2653 s390_j (code, 6);
2654 s390_llong(code, ins->inst_imm);
2655 if ((ins->next) &&
2656 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2657 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
2658 else
2659 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
2660 }
2661 }
2662 break;
2663 case OP_ICOMPARE: {
2664 if ((ins->next) &&
2665 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2666 s390_clr (code, ins->sreg1, ins->sreg2);
2667 else
2668 s390_cr (code, ins->sreg1, ins->sreg2);
2669 }
2670 break;
2671 case OP_ICOMPARE_IMM: {
2672 if (s390_is_imm16 (ins->inst_imm)) {
2673 s390_lghi (code, s390_r0, ins->inst_imm);
2674 if ((ins->next) &&
2675 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2676 s390_clr (code, ins->sreg1, s390_r0);
2677 else
2678 s390_cr (code, ins->sreg1, s390_r0);
2679 }
2680 else {
2681 s390_basr (code, s390_r13, 0);
2682 s390_j (code, 4);
2683 s390_word (code, ins->inst_imm);
2684 if ((ins->next) &&
2685 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2686 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2687 else
2688 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2689 }
2690 }
2691 break;
2692 case CEE_BREAK: {
2693 s390_basr (code, s390_r13, 0);
2694 s390_j (code, 6);
2695 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
2696 mono_arch_break);
2697 s390_llong (code, mono_arch_break);
2698 s390_lg (code, s390_r14, 0, s390_r13, 4);
2699 s390_basr (code, s390_r14, s390_r14);
2700 }
2701 break;
2702 case OP_ADDCC: {
2703 CHECK_SRCDST_COM;
2704 s390_algr (code, ins->dreg, src2);
2705 }
2706 break;
2707 case CEE_ADD: {
2708 CHECK_SRCDST_COM;
2709 s390_agr (code, ins->dreg, src2);
2710 }
2711 break;
2712 case OP_ADC: {
2713 CHECK_SRCDST_COM;
2714 s390_alcgr (code, ins->dreg, src2);
2715 }
2716 break;
2717 case OP_ADD_IMM: {
2718 if (ins->dreg != ins->sreg1) {
2719 s390_lgr (code, ins->dreg, ins->sreg1);
2720 }
2721 if (s390_is_imm16 (ins->inst_imm)) {
2722 s390_aghi (code, ins->dreg, ins->inst_imm);
2723 } else {
2724 s390_basr (code, s390_r13, 0);
2725 s390_j (code, 6);
2726 s390_llong(code, ins->inst_imm);
2727 s390_ag (code, ins->dreg, 0, s390_r13, 4);
2728 }
2729 }
2730 break;
2731 case OP_ADC_IMM: {
2732 if (ins->dreg != ins->sreg1) {
2733 s390_lgr (code, ins->dreg, ins->sreg1);
2734 }
2735 if (s390_is_imm16 (ins->inst_imm)) {
2736 s390_lghi (code, s390_r0, ins->inst_imm);
2737 s390_alcgr (code, ins->dreg, s390_r0);
2738 } else {
2739 s390_basr (code, s390_r13, 0);
2740 s390_j (code, 6);
2741 s390_llong (code, ins->inst_imm);
2742 s390_lg (code, s390_r13, 0, s390_r13, 4);
2743 s390_alcgr (code, ins->dreg, s390_r13);
2744 }
2745 }
2746 break;
2747 case OP_LADD_OVF: {
2748 CHECK_SRCDST_COM;
2749 s390_agr (code, ins->dreg, src2);
2750 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2751 }
2752 break;
2753 case OP_LADD_OVF_UN: {
2754 CHECK_SRCDST_COM;
2755 s390_algr (code, ins->dreg, src2);
2756 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2757 }
2758 break;
2759 case OP_ADD_OVF_CARRY: {
2760 CHECK_SRCDST_COM;
2761 s390_lghi (code, s390_r0, 0);
2762 s390_lgr (code, s390_r1, s390_r0);
2763 s390_alcgr (code, s390_r0, s390_r1);
2764 s390_agr (code, ins->dreg, src2);
2765 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2766 s390_agr (code, ins->dreg, s390_r0);
2767 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2768 }
2769 break;
2770 case OP_ADD_OVF_UN_CARRY: {
2771 CHECK_SRCDST_COM;
2772 s390_alcgr (code, ins->dreg, src2);
2773 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2774 }
2775 break;
2776 case OP_SUBCC: {
2777 CHECK_SRCDST_NCOM;
2778 s390_slgr (code, ins->dreg, src2);
2779 }
2780 break;
2781 case CEE_SUB: {
2782 CHECK_SRCDST_NCOM;
2783 s390_sgr (code, ins->dreg, src2);
2784 }
2785 break;
2786 case OP_SBB: {
2787 CHECK_SRCDST_NCOM;
2788 s390_slbgr(code, ins->dreg, src2);
2789 }
2790 break;
2791 case OP_SUB_IMM: {
2792 if (ins->dreg != ins->sreg1) {
2793 s390_lgr (code, ins->dreg, ins->sreg1);
2794 }
2795 if (s390_is_imm16 (-ins->inst_imm)) {
2796 s390_lghi (code, s390_r0, ins->inst_imm);
2797 s390_slgr (code, ins->dreg, s390_r0);
2798 } else {
2799 s390_basr (code, s390_r13, 0);
2800 s390_j (code, 6);
2801 s390_llong(code, ins->inst_imm);
2802 s390_slg (code, ins->dreg, 0, s390_r13, 4);
2803 }
2804 }
2805 break;
2806 case OP_SBB_IMM: {
2807 if (ins->dreg != ins->sreg1) {
2808 s390_lgr (code, ins->dreg, ins->sreg1);
2809 }
2810 if (s390_is_imm16 (-ins->inst_imm)) {
2811 s390_lghi (code, s390_r0, ins->inst_imm);
2812 s390_slbgr (code, ins->dreg, s390_r0);
2813 } else {
2814 s390_basr (code, s390_r13, 0);
2815 s390_j (code, 6);
2816 s390_llong(code, ins->inst_imm);
2817 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
2818 }
2819 }
2820 break;
2821 case OP_LSUB_OVF: {
2822 CHECK_SRCDST_NCOM;
2823 s390_sgr (code, ins->dreg, src2);
2824 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2825 }
2826 break;
2827 case OP_LSUB_OVF_UN: {
2828 CHECK_SRCDST_NCOM;
2829 s390_slgr (code, ins->dreg, src2);
2830 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2831 }
2832 break;
2833 case OP_SUB_OVF_CARRY: {
2834 CHECK_SRCDST_NCOM;
2835 s390_lghi (code, s390_r0, 0);
2836 s390_lgr (code, s390_r1, s390_r0);
2837 s390_slbgr (code, s390_r0, s390_r1);
2838 s390_sgr (code, ins->dreg, src2);
2839 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2840 s390_agr (code, ins->dreg, s390_r0);
2841 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2842 }
2843 break;
2844 case OP_SUB_OVF_UN_CARRY: {
2845 CHECK_SRCDST_NCOM;
2846 s390_slbgr (code, ins->dreg, src2);
2847 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2848 }
2849 break;
2850 case CEE_AND: {
2851 if (ins->sreg1 == ins->dreg) {
2852 s390_ngr (code, ins->dreg, ins->sreg2);
2853 }
2854 else {
2855 if (ins->sreg2 == ins->dreg) {
2856 s390_ngr (code, ins->dreg, ins->sreg1);
2857 }
2858 else {
2859 s390_lgr (code, ins->dreg, ins->sreg1);
2860 s390_ngr (code, ins->dreg, ins->sreg2);
2861 }
2862 }
2863 }
2864 break;
2865 case OP_AND_IMM: {
2866 if (ins->dreg != ins->sreg1) {
2867 s390_lgr (code, ins->dreg, ins->sreg1);
2868 }
2869 if (s390_is_imm16 (ins->inst_imm)) {
2870 s390_lghi (code, s390_r0, ins->inst_imm);
2871 s390_ngr (code, ins->dreg, s390_r0);
2872 } else {
2873 s390_basr (code, s390_r13, 0);
2874 s390_j (code, 6);
2875 s390_llong(code, ins->inst_imm);
2876 s390_ng (code, ins->dreg, 0, s390_r13, 4);
2877 }
2878 }
2879 break;
2880 case OP_LDIV: {
2881 s390_lgr (code, s390_r1, ins->sreg1);
2882 s390_dsgr (code, s390_r0, ins->sreg2);
2883 s390_lgr (code, ins->dreg, s390_r1);
2884 }
2885 break;
2886 case OP_LDIV_UN: {
2887 s390_lgr (code, s390_r1, ins->sreg1);
2888 s390_lghi (code, s390_r0, 0);
2889 s390_dlgr (code, s390_r0, ins->sreg2);
2890 s390_lgr (code, ins->dreg, s390_r1);
2891 }
2892 break;
2893 case OP_DIV_IMM: {
2894 if (s390_is_imm16 (ins->inst_imm)) {
2895 s390_lghi (code, s390_r13, ins->inst_imm);
2896 s390_lgr (code, s390_r1, ins->sreg1);
2897 } else {
2898 s390_basr (code, s390_r13, 0);
2899 s390_j (code, 6);
2900 s390_llong(code, ins->inst_imm);
2901 s390_lgr (code, s390_r1, ins->sreg1);
2902 s390_lg (code, s390_r13, 0, s390_r13, 4);
2903 }
2904 s390_dsgr (code, s390_r0, s390_r13);
2905 s390_lgr (code, ins->dreg, s390_r1);
2906 }
2907 break;
2908 case OP_LREM: {
2909 s390_lgr (code, s390_r1, ins->sreg1);
2910 s390_dsgr (code, s390_r0, ins->sreg2);
2911 s390_lgr (code, ins->dreg, s390_r0);
2912 break;
2913 }
2914 case OP_LREM_UN: {
2915 s390_lgr (code, s390_r1, ins->sreg1);
2916 s390_lghi (code, s390_r0, 0);
2917 s390_dlgr (code, s390_r0, ins->sreg2);
2918 s390_lgr (code, ins->dreg, s390_r0);
2919 }
2920 break;
2921 case OP_REM_IMM: {
2922 if (s390_is_imm16 (ins->inst_imm)) {
2923 s390_lghi (code, s390_r13, ins->inst_imm);
2924 s390_lgr (code, s390_r0, ins->sreg1);
2925 } else {
2926 s390_basr (code, s390_r13, 0);
2927 s390_j (code, 6);
2928 s390_llong(code, ins->inst_imm);
2929 s390_lgr (code, s390_r0, ins->sreg1);
2930 s390_lg (code, s390_r13, 0, s390_r13, 4);
2931 }
2932 s390_dsgr(code, s390_r0, s390_r13);
2933 s390_lgr (code, ins->dreg, s390_r0);
2934 }
2935 break;
2936 case CEE_OR: {
2937 if (ins->sreg1 == ins->dreg) {
2938 s390_ogr (code, ins->dreg, ins->sreg2);
2939 }
2940 else {
2941 if (ins->sreg2 == ins->dreg) {
2942 s390_ogr (code, ins->dreg, ins->sreg1);
2943 }
2944 else {
2945 s390_lgr (code, ins->dreg, ins->sreg1);
2946 s390_ogr (code, ins->dreg, ins->sreg2);
2947 }
2948 }
2949 }
2950 break;
2951 case OP_OR_IMM: {
2952 if (ins->dreg != ins->sreg1) {
2953 s390_lgr (code, ins->dreg, ins->sreg1);
2954 }
2955 if (s390_is_imm16 (ins->inst_imm)) {
2956 s390_lghi (code, s390_r0, ins->inst_imm);
2957 s390_ogr (code, ins->dreg, s390_r0);
2958 } else {
2959 s390_basr (code, s390_r13, 0);
2960 s390_j (code, 6);
2961 s390_llong(code, ins->inst_imm);
2962 s390_og (code, ins->dreg, 0, s390_r13, 4);
2963 }
2964 }
2965 break;
2966 case CEE_XOR: {
2967 if (ins->sreg1 == ins->dreg) {
2968 s390_xgr (code, ins->dreg, ins->sreg2);
2969 }
2970 else {
2971 if (ins->sreg2 == ins->dreg) {
2972 s390_xgr (code, ins->dreg, ins->sreg1);
2973 }
2974 else {
2975 s390_lgr (code, ins->dreg, ins->sreg1);
2976 s390_xgr (code, ins->dreg, ins->sreg2);
2977 }
2978 }
2979 }
2980 break;
2981 case OP_XOR_IMM: {
2982 if (ins->dreg != ins->sreg1) {
2983 s390_lgr (code, ins->dreg, ins->sreg1);
2984 }
2985 if (s390_is_imm16 (ins->inst_imm)) {
2986 s390_lghi (code, s390_r0, ins->inst_imm);
2987 s390_xgr (code, ins->dreg, s390_r0);
2988 } else {
2989 s390_basr (code, s390_r13, 0);
2990 s390_j (code, 6);
2991 s390_llong(code, ins->inst_imm);
2992 s390_xg (code, ins->dreg, 0, s390_r13, 4);
2993 }
2994 }
2995 break;
2996 case CEE_SHL:
2997 case OP_LSHL: {
2998 CHECK_SRCDST_NCOM;
2999 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3000 }
3001 break;
3002 case OP_SHL_IMM:
3003 case OP_LSHL_IMM: {
3004 if (ins->sreg1 != ins->dreg) {
3005 s390_lgr (code, ins->dreg, ins->sreg1);
3006 }
3007 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3008 }
3009 break;
3010 case CEE_SHR:
3011 case OP_LSHR: {
3012 CHECK_SRCDST_NCOM;
3013 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3014 }
3015 break;
3016 case OP_SHR_IMM:
3017 case OP_LSHR_IMM: {
3018 if (ins->sreg1 != ins->dreg) {
3019 s390_lgr (code, ins->dreg, ins->sreg1);
3020 }
3021 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3022 }
3023 break;
3024 case OP_SHR_UN_IMM:
3025 case OP_LSHR_UN_IMM: {
3026 if (ins->sreg1 != ins->dreg) {
3027 s390_lgr (code, ins->dreg, ins->sreg1);
3028 }
3029 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3030 }
3031 break;
3032 case CEE_SHR_UN:
3033 case OP_LSHR_UN: {
3034 CHECK_SRCDST_NCOM;
3035 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3036 }
3037 break;
3038 case CEE_NOT: {
3039 if (ins->sreg1 != ins->dreg) {
3040 s390_lgr (code, ins->dreg, ins->sreg1);
3041 }
3042 s390_lghi (code, s390_r0, -1);
3043 s390_xgr (code, ins->dreg, s390_r0);
3044 }
3045 break;
3046 case CEE_NEG: {
3047 s390_lcgr (code, ins->dreg, ins->sreg1);
3048 }
3049 break;
3050 case CEE_MUL:
3051 case OP_LMUL: {
3052 CHECK_SRCDST_COM;
3053 s390_msgr (code, ins->dreg, src2);
3054 }
3055 break;
3056 case OP_MUL_IMM:
3057 case OP_LMUL_IMM: {
3058 if (ins->dreg != ins->sreg1) {
3059 s390_lgr (code, ins->dreg, ins->sreg1);
3060 }
3061 if (s390_is_imm16 (ins->inst_imm)) {
3062 s390_lghi (code, s390_r13, ins->inst_imm);
3063 } else {
3064 s390_basr (code, s390_r13, 0);
3065 s390_j (code, 6);
3066 s390_llong(code, ins->inst_imm);
3067 s390_lg (code, s390_r13, 0, s390_r13, 4);
3068 }
3069 s390_msgr (code, ins->dreg, s390_r13);
3070 }
3071 break;
3072 case OP_LMUL_OVF:
3073 case CEE_MUL_OVF: {
3074 short int *o[2];
3075 s390_ltgr (code, s390_r1, ins->sreg1);
3076 s390_jz (code, 0); CODEPTR(code, o[0]);
3077 s390_ltgr (code, s390_r0, ins->sreg2);
3078 s390_jnz (code, 6);
3079 s390_lghi (code, s390_r1, 0);
3080 s390_j (code, 0); CODEPTR(code, o[1]);
3081 s390_xgr (code, s390_r0, s390_r1);
3082 s390_msgr (code, s390_r1, ins->sreg2);
3083 s390_xgr (code, s390_r0, s390_r1);
3084 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3085 s390_ltgr (code, s390_r0, s390_r0);
3086 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3087 PTRSLOT (code, o[0]);
3088 PTRSLOT (code, o[1]);
3089 s390_lgr (code, ins->dreg, s390_r1);
3090 }
3091 break;
3092 case OP_LMUL_OVF_UN:
3093 case CEE_MUL_OVF_UN: {
3094 s390_lghi (code, s390_r0, 0);
3095 s390_lgr (code, s390_r1, ins->sreg1);
3096 s390_mlgr (code, s390_r0, ins->sreg2);
3097 s390_ltgr (code, s390_r0, s390_r0);
3098 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3099 s390_lgr (code, ins->dreg, s390_r1);
3100 }
3101 break;
3102 case OP_IADDCC: {
3103 g_assert_not_reached ();
3104 CHECK_SRCDST_COM_I;
3105 s390_algr (code, ins->dreg, src2);
3106 }
3107 break;
3108 case OP_IADD: {
3109 CHECK_SRCDST_COM_I;
3110 s390_agr (code, ins->dreg, src2);
3111 }
3112 break;
3113 case OP_IADC: {
3114 g_assert_not_reached ();
3115 CHECK_SRCDST_COM_I;
3116 s390_alcgr (code, ins->dreg, src2);
3117 }
3118 break;
3119 case OP_IADD_IMM: {
3120 if (ins->dreg != ins->sreg1) {
3121 s390_lgfr (code, ins->dreg, ins->sreg1);
3122 }
3123 if (s390_is_imm16 (ins->inst_imm)) {
3124 s390_aghi(code, ins->dreg, ins->inst_imm);
3125 } else {
3126 s390_basr (code, s390_r13, 0);
3127 s390_j (code, 4);
3128 s390_word (code, ins->inst_imm);
3129 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3130 }
3131 }
3132 break;
3133 case OP_IADC_IMM: {
3134 if (ins->dreg != ins->sreg1) {
3135 s390_lgfr (code, ins->dreg, ins->sreg1);
3136 }
3137 if (s390_is_imm16 (ins->inst_imm)) {
3138 s390_lghi (code, s390_r0, ins->inst_imm);
3139 s390_alcgr (code, ins->dreg, s390_r0);
3140 } else {
3141 s390_basr (code, s390_r13, 0);
3142 s390_j (code, 4);
3143 s390_word (code, ins->inst_imm);
3144 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3145 s390_alcgr (code, ins->dreg, s390_r13);
3146 }
3147 }
3148 break;
3149 case CEE_ADD_OVF: {
3150 CHECK_SRCDST_COM;
3151 s390_ar (code, ins->dreg, src2);
3152 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3153 s390_lgfr (code, ins->dreg, ins->dreg);
3154 }
3155 break;
3156 case CEE_ADD_OVF_UN: {
3157 CHECK_SRCDST_COM;
3158 s390_algr (code, ins->dreg, src2);
3159 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3160 s390_llgfr (code, ins->dreg, ins->dreg);
3161 }
3162 break;
3163 case OP_ISUBCC: {
3164 CHECK_SRCDST_NCOM_I;
3165 s390_slgr (code, ins->dreg, src2);
3166 }
3167 break;
3168 case OP_ISUB: {
3169 CHECK_SRCDST_NCOM_I;
3170 s390_sgr (code, ins->dreg, src2);
3171 }
3172 break;
3173 case OP_ISBB: {
3174 CHECK_SRCDST_NCOM_I;
3175 s390_slbgr (code, ins->dreg, src2);
3176 }
3177 break;
3178 case OP_ISUB_IMM: {
3179 if (ins->dreg != ins->sreg1) {
3180 s390_lgfr (code, ins->dreg, ins->sreg1);
3181 }
3182 if (s390_is_imm16 (-ins->inst_imm)) {
3183 s390_aghi (code, ins->dreg, -ins->inst_imm);
3184 } else {
3185 s390_basr (code, s390_r13, 0);
3186 s390_j (code, 4);
3187 s390_word (code, ins->inst_imm);
3188 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3189 }
3190 }
3191 break;
3192 case OP_ISBB_IMM: {
3193 s390_basr (code, s390_r13, 0);
3194 s390_j (code, 4);
3195 s390_word (code, ins->inst_imm);
3196 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3197 }
3198 break;
3199 case CEE_SUB_OVF: {
3200 CHECK_SRCDST_NCOM;
3201 s390_sr (code, ins->dreg, src2);
3202 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3203 s390_lgfr (code, ins->dreg, ins->dreg);
3204 }
3205 break;
3206 case CEE_SUB_OVF_UN: {
3207 CHECK_SRCDST_NCOM;
3208 s390_slr (code, ins->dreg, src2);
3209 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3210 s390_llgfr(code, ins->dreg, ins->dreg);
3211 }
3212 break;
3213 case OP_IAND: {
3214 CHECK_SRCDST_NCOM_I;
3215 s390_ngr (code, ins->dreg, src2);
3216 }
3217 break;
3218 case OP_IAND_IMM: {
3219 if (ins->dreg != ins->sreg1) {
3220 s390_lgfr (code, ins->dreg, ins->sreg1);
3221 }
3222 if (s390_is_imm16 (ins->inst_imm)) {
3223 s390_lghi (code, s390_r0, ins->inst_imm);
3224 s390_ngr (code, ins->dreg, s390_r0);
3225 } else {
3226 s390_basr (code, s390_r13, 0);
3227 s390_j (code, 6);
3228 s390_llong(code, ins->inst_imm);
3229 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3230 }
3231 }
3232 break;
3233 case OP_IDIV: {
3234 s390_lgfr (code, s390_r0, ins->sreg1);
3235 s390_srda (code, s390_r0, 0, 32);
3236 s390_dr (code, s390_r0, ins->sreg2);
3237 s390_lgfr (code, ins->dreg, s390_r1);
3238 }
3239 break;
3240 case OP_IDIV_UN: {
3241 s390_lgfr (code, s390_r0, ins->sreg1);
3242 s390_srdl (code, s390_r0, 0, 32);
3243 s390_dlr (code, s390_r0, ins->sreg2);
3244 s390_lgfr (code, ins->dreg, s390_r1);
3245 }
3246 break;
3247 case OP_IDIV_IMM: {
3248 if (s390_is_imm16 (ins->inst_imm)) {
3249 s390_lghi (code, s390_r13, ins->inst_imm);
3250 s390_lgfr (code, s390_r0, ins->sreg1);
3251 } else {
3252 s390_basr (code, s390_r13, 0);
3253 s390_j (code, 4);
3254 s390_word (code, ins->inst_imm);
3255 s390_lgfr (code, s390_r0, ins->sreg1);
3256 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3257 }
3258 s390_srda (code, s390_r0, 0, 32);
3259 s390_dr (code, s390_r0, ins->sreg2);
3260 s390_lgfr (code, ins->dreg, s390_r1);
3261 }
3262 break;
3263 case OP_IREM: {
3264 s390_lgfr (code, s390_r0, ins->sreg1);
3265 s390_srda (code, s390_r0, 0, 32);
3266 s390_dr (code, s390_r0, ins->sreg2);
3267 s390_lgfr (code, ins->dreg, s390_r0);
3268 break;
3269 case OP_IREM_UN:
3270 s390_lgfr (code, s390_r0, ins->sreg1);
3271 s390_srdl (code, s390_r0, 0, 32);
3272 s390_dlr (code, s390_r0, ins->sreg2);
3273 s390_lgfr (code, ins->dreg, s390_r0);
3274 }
3275 break;
3276 case OP_IREM_IMM: {
3277 if (s390_is_imm16 (ins->inst_imm)) {
3278 s390_lghi (code, s390_r13, ins->inst_imm);
3279 s390_lgfr (code, s390_r0, ins->sreg1);
3280 } else {
3281 s390_basr (code, s390_r13, 0);
3282 s390_j (code, 4);
3283 s390_word (code, ins->inst_imm);
3284 s390_lgfr (code, s390_r0, ins->sreg1);
3285 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3286 }
3287 s390_srda (code, s390_r0, 0, 32);
3288 s390_dr (code, s390_r0, ins->sreg2);
3289 s390_lgfr (code, ins->dreg, s390_r0);
3290 }
3291 break;
3292 case OP_IOR: {
3293 CHECK_SRCDST_COM_I;
3294 s390_ogr (code, ins->dreg, src2);
3295 }
3296 break;
3297 case OP_IOR_IMM: {
3298 if (ins->dreg != ins->sreg1) {
3299 s390_lgfr (code, ins->dreg, ins->sreg1);
3300 }
3301 if (s390_is_imm16 (ins->inst_imm)) {
3302 s390_lghi (code, s390_r0, ins->inst_imm);
3303 s390_ogr (code, ins->dreg, s390_r0);
3304 } else {
3305 s390_basr (code, s390_r13, 0);
3306 s390_j (code, 6);
3307 s390_llong(code, ins->inst_imm);
3308 s390_og (code, ins->dreg, 0, s390_r13, 4);
3309 }
3310 }
3311 break;
3312 case OP_IXOR: {
3313 CHECK_SRCDST_COM_I;
3314 s390_xgr (code, ins->dreg, src2);
3315 }
3316 break;
3317 case OP_IXOR_IMM: {
3318 if (ins->dreg != ins->sreg1) {
3319 s390_lgfr (code, ins->dreg, ins->sreg1);
3320 }
3321 if (s390_is_imm16 (ins->inst_imm)) {
3322 s390_lghi (code, s390_r0, ins->inst_imm);
3323 s390_xgr (code, ins->dreg, s390_r0);
3324 } else {
3325 s390_basr (code, s390_r13, 0);
3326 s390_j (code, 6);
3327 s390_llong(code, ins->inst_imm);
3328 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3329 }
3330 }
3331 break;
3332 case OP_ISHL: {
3333 if (ins->sreg1 != ins->dreg) {
3334 s390_lgfr (code, ins->dreg, ins->sreg1);
3335 }
3336 s390_sll (code, ins->dreg, ins->sreg2, 0);
3337 }
3338 break;
3339 case OP_ISHL_IMM: {
3340 if (ins->sreg1 != ins->dreg) {
3341 s390_lgfr (code, ins->dreg, ins->sreg1);
3342 }
3343 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3344 }
3345 break;
3346 case OP_ISHR: {
3347 if (ins->sreg1 != ins->dreg) {
3348 s390_lgfr (code, ins->dreg, ins->sreg1);
3349 }
3350 s390_sra (code, ins->dreg, ins->sreg2, 0);
3351 }
3352 break;
3353 case OP_ISHR_IMM: {
3354 if (ins->sreg1 != ins->dreg) {
3355 s390_lgfr (code, ins->dreg, ins->sreg1);
3356 }
3357 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3358 }
3359 break;
3360 case OP_ISHR_UN_IMM: {
3361 if (ins->sreg1 != ins->dreg) {
3362 s390_lgfr (code, ins->dreg, ins->sreg1);
3363 }
3364 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3365 }
3366 break;
3367 case OP_ISHR_UN: {
3368 if (ins->sreg1 != ins->dreg) {
3369 s390_lgfr (code, ins->dreg, ins->sreg1);
3370 }
3371 s390_srl (code, ins->dreg, ins->sreg2, 0);
3372 }
3373 break;
3374 case OP_INOT: {
3375 if (ins->sreg1 != ins->dreg) {
3376 s390_lgfr (code, ins->dreg, ins->sreg1);
3377 }
3378 s390_lghi (code, s390_r0, -1);
3379 s390_xgr (code, ins->dreg, s390_r0);
3380 }
3381 break;
3382 case OP_INEG: {
3383 s390_lcgr (code, ins->dreg, ins->sreg1);
3384 }
3385 break;
3386 case OP_IMUL: {
3387 CHECK_SRCDST_COM_I;
3388 s390_msr (code, ins->dreg, src2);
3389 }
3390 break;
3391 case OP_IMUL_IMM: {
3392 if (ins->dreg != ins->sreg1) {
3393 s390_lgfr (code, ins->dreg, ins->sreg1);
3394 }
3395 if (s390_is_imm16 (ins->inst_imm)) {
3396 s390_lghi (code, s390_r13, ins->inst_imm);
3397 } else {
3398 s390_basr (code, s390_r13, 0);
3399 s390_j (code, 4);
3400 s390_word (code, ins->inst_imm);
3401 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3402 }
3403 s390_msr (code, ins->dreg, s390_r13);
3404 }
3405 break;
3406 case OP_IMUL_OVF: {
3407 short int *o[2];
3408 s390_ltr (code, s390_r1, ins->sreg1);
3409 s390_jz (code, 0); CODEPTR(code, o[0]);
3410 s390_ltr (code, s390_r0, ins->sreg2);
3411 s390_jnz (code, 6);
3412 s390_lhi (code, s390_r1, 0);
3413 s390_j (code, 0); CODEPTR(code, o[1]);
3414 s390_xr (code, s390_r0, s390_r1);
3415 s390_msr (code, s390_r1, ins->sreg2);
3416 s390_xr (code, s390_r0, s390_r1);
3417 s390_srl (code, s390_r0, 0, 31);
3418 s390_ltr (code, s390_r0, s390_r0);
3419 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3420 PTRSLOT (code, o[0]);
3421 PTRSLOT (code, o[1]);
3422 s390_lgfr (code, ins->dreg, s390_r1);
3423 }
3424 break;
3425 case OP_IMUL_OVF_UN: {
3426 s390_lhi (code, s390_r0, 0);
3427 s390_lr (code, s390_r1, ins->sreg1);
3428 s390_mlr (code, s390_r0, ins->sreg2);
3429 s390_ltr (code, s390_r0, s390_r0);
3430 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3431 s390_lgfr (code, ins->dreg, s390_r1);
3432 }
3433 break;
3434 case OP_ICONST:
3435 case OP_I8CONST:
3436 case OP_SETREGIMM: {
3437 if (s390_is_imm16(ins->inst_c0)) {
3438 s390_lghi (code, ins->dreg, ins->inst_c0);
3439 } else {
3440 s390_basr (code, s390_r13, 0);
3441 s390_j (code, 6);
3442 s390_llong(code, ins->inst_c0);
3443 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3444 }
3445 }
3446 break;
3447 case OP_AOTCONST: {
3448 s390_basr (code, s390_r13, 0);
3449 s390_j (code, 6);
3450 mono_add_patch_info (cfg, code - cfg->native_code,
3451 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3452 s390_llong(code, 0);
3453 s390_lg (code,ins->dreg, 0, s390_r13, 4);
3454 }
3455 break;
3456 case CEE_CONV_I:
3457 case CEE_CONV_I8:
3458 case OP_MOVE:
3459 case OP_SETREG: {
3460 if (ins->dreg != ins->sreg1) {
3461 s390_lgr (code, ins->dreg, ins->sreg1);
3462 }
3463 }
3464 break;
3465 case CEE_CONV_I4:
3466 s390_lgfr (code, ins->dreg, ins->sreg1);
3467 break;
3468 case CEE_CONV_U:
3469 case CEE_CONV_U8:
3470 case CEE_CONV_U4:
3471 s390_llgfr (code, ins->dreg, ins->sreg1);
3472 break;
3473 case CEE_CONV_OVF_U4:
3474 s390_basr (code, s390_r13, 0);
3475 s390_j (code, 6);
3476 s390_llong(code, 4294967295);
3477 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3478 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3479 s390_ltgr (code, ins->sreg1, ins->sreg1);
3480 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3481 s390_llgfr(code, ins->dreg, ins->sreg1);
3482 break;
3483 case CEE_CONV_OVF_I4_UN:
3484 s390_basr (code, s390_r13, 0);
3485 s390_j (code, 6);
3486 s390_llong(code, 2147483647);
3487 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3488 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3489 s390_ltgr (code, ins->sreg1, ins->sreg1);
3490 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3491 s390_lgfr (code, ins->dreg, ins->sreg1);
3492 break;
3493 case OP_SETFREG:
3494 case OP_FMOVE: {
3495 if (ins->dreg != ins->sreg1) {
3496 s390_ldr (code, ins->dreg, ins->sreg1);
3497 }
3498 }
3499 break;
3500 case OP_S390_SETF4RET: {
3501 s390_ledbr (code, ins->dreg, ins->sreg1);
3502 }
3503 break;
3504 case OP_FCONV_TO_R4: {
3505 g_error ("Shouldn't be reached");
3506 if ((ins->next) &&
3507 (ins->next->opcode != OP_FMOVE) &&
3508 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3509 s390_ledbr (code, ins->dreg, ins->sreg1);
3510 }
3511 break;
3512 case CEE_JMP: {
3513 if (cfg->method->save_lmf)
3514 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3515
3516 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3517 code = emit_load_volatile_registers(code, cfg);
3518 }
3519
3520 code = backUpStackPtr(cfg, code);
3521 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3522 mono_add_patch_info (cfg, code - cfg->native_code,
3523 MONO_PATCH_INFO_METHOD_JUMP,
3524 ins->inst_p0);
3525 s390_jcl (code, S390_CC_UN, 0);
3526 }
3527 break;
3528 case OP_CHECK_THIS: {
3529 /* ensure ins->sreg1 is not NULL */
3530 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
3531 s390_ltgr (code, s390_r0, s390_r0);
3532 }
3533 break;
3534 case OP_ARGLIST: {
3535 int offset = cfg->sig_cookie + cfg->stack_usage;
3536
3537 if (s390_is_imm16 (offset))
3538 s390_lghi (code, s390_r0, offset);
3539 else {
3540 s390_basr (code, s390_r13, 0);
3541 s390_j (code, 6);
3542 s390_llong(code, offset);
3543 s390_lg (code, s390_r0, 0, s390_r13, 0);
3544 }
3545 s390_agr (code, s390_r0, cfg->frame_reg);
3546 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
3547 }
3548 break;
3549 case OP_FCALL: {
3550 s390_basr (code, s390_r13, 0);
3551 s390_j (code, 6);
3552 call = (MonoCallInst*)ins;
3553 if (ins->flags & MONO_INST_HAS_METHOD)
3554 mono_add_patch_info (cfg, code-cfg->native_code,
3555 MONO_PATCH_INFO_METHOD,
3556 call->method);
3557 else
3558 mono_add_patch_info (cfg, code-cfg->native_code,
3559 MONO_PATCH_INFO_ABS,
3560 call->fptr);
3561 s390_llong(code, 0);
3562 s390_lg (code, s390_r14, 0, s390_r13, 4);
3563 s390_basr (code, s390_r14, s390_r14);
3564 if (call->signature->ret->type == MONO_TYPE_R4)
3565 s390_ldebr (code, s390_f0, s390_f0);
3566 }
3567 break;
3568 case OP_LCALL:
3569 case OP_VCALL:
3570 case OP_VOIDCALL:
3571 case CEE_CALL: {
3572 s390_basr (code, s390_r13, 0);
3573 s390_j (code, 6);
3574 call = (MonoCallInst*)ins;
3575 if (ins->flags & MONO_INST_HAS_METHOD)
3576 mono_add_patch_info (cfg, code-cfg->native_code,
3577 MONO_PATCH_INFO_METHOD,
3578 call->method);
3579 else
3580 mono_add_patch_info (cfg, code-cfg->native_code,
3581 MONO_PATCH_INFO_ABS,
3582 call->fptr);
3583 s390_llong(code, 0);
3584 s390_lg (code, s390_r14, 0, s390_r13, 4);
3585 s390_basr (code, s390_r14, s390_r14);
3586 }
3587 break;
3588 case OP_FCALL_REG: {
3589 call = (MonoCallInst*)ins;
3590 s390_lgr (code, s390_r1, ins->sreg1);
3591 s390_basr (code, s390_r14, s390_r1);
3592 if (call->signature->ret->type == MONO_TYPE_R4)
3593 s390_ldebr (code, s390_f0, s390_f0);
3594 }
3595 break;
3596 case OP_LCALL_REG:
3597 case OP_VCALL_REG:
3598 case OP_VOIDCALL_REG:
3599 case OP_CALL_REG: {
3600 s390_lgr (code, s390_r1, ins->sreg1);
3601 s390_basr (code, s390_r14, s390_r1);
3602 }
3603 break;
3604 case OP_FCALL_MEMBASE: {
3605 call = (MonoCallInst*)ins;
3606 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3607 s390_basr (code, s390_r14, s390_r1);
3608 if (call->signature->ret->type == MONO_TYPE_R4)
3609 s390_ldebr (code, s390_f0, s390_f0);
3610 }
3611 break;
3612 case OP_LCALL_MEMBASE:
3613 case OP_VCALL_MEMBASE:
3614 case OP_VOIDCALL_MEMBASE:
3615 case OP_CALL_MEMBASE: {
3616 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3617 s390_basr (code, s390_r14, s390_r1);
3618 }
3619 break;
3620 case OP_OUTARG:
3621 g_assert_not_reached ();
3622 break;
3623 case OP_LOCALLOC: {
3624 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3625 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3626 s390_lgr (code, s390_r1, ins->sreg1);
3627 if (ins->flags & MONO_INST_INIT)
3628 s390_lgr (code, s390_r0, ins->sreg1);
3629 s390_aghi (code, s390_r1, 14);
3630 s390_srlg (code, s390_r1, s390_r1, 0, 3);
3631 s390_sllg (code, s390_r1, s390_r1, 0, 3);
3632 if (cfg->method->save_lmf) {
3633 /*----------------------------------*/
3634 /* we have to adjust lmf ebp value */
3635 /*----------------------------------*/
3636 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3637
3638 s390_lgr (code, s390_r13, cfg->frame_reg);
3639 if (s390_is_uimm16(lmfOffset))
3640 s390_aghi (code, s390_r13, lmfOffset);
3641 else {
3642 s390_basr (code, s390_r14, 0);
3643 s390_j (code, 4);
3644 s390_word (code, lmfOffset);
3645 s390_agf (code, s390_r13, 0, s390_r14, 4);
3646 }
3647 s390_lgr (code, s390_r14, STK_BASE);
3648 s390_sgr (code, s390_r14, s390_r1);
3649 s390_stg (code, s390_r14, 0, s390_r13,
3650 G_STRUCT_OFFSET(MonoLMF, ebp));
3651 }
3652 s390_lg (code, s390_r13, 0, STK_BASE, 0);
3653 s390_sgr (code, STK_BASE, s390_r1);
3654 s390_stg (code, s390_r13, 0, STK_BASE, 0);
3655 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3656 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
3657 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
3658 if (ins->flags & MONO_INST_INIT) {
3659 s390_lgr (code, s390_r1, s390_r0);
3660 s390_lgr (code, s390_r0, ins->dreg);
3661 s390_lgr (code, s390_r14, s390_r12);
3662 s390_lghi (code, s390_r13, 0);
3663 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3664 s390_jo (code, -2);
3665 s390_lgr (code, s390_r12, s390_r14);
3666 }
3667 }
3668 break;
3669 case CEE_RET: {
3670 s390_br (code, s390_r14);
3671 }
3672 break;
3673 case CEE_THROW: {
3674 s390_lgr (code, s390_r2, ins->sreg1);
3675 s390_basr (code, s390_r13, 0);
3676 s390_j (code, 6);
3677 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3678 (gpointer) "mono_arch_throw_exception");
3679 s390_llong(code, 0);
3680 s390_lg (code, s390_r14, 0, s390_r13, 4);
3681 s390_basr (code, s390_r14, s390_r14);
3682 }
3683 break;
3684 case OP_RETHROW: {
3685 s390_lgr (code, s390_r2, ins->sreg1);
3686 s390_basr (code, s390_r13, 0);
3687 s390_j (code, 6);
3688 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3689 (gpointer) "mono_arch_rethrow_exception");
3690 s390_llong(code, 0);
3691 s390_lg (code, s390_r14, 0, s390_r13, 4);
3692 s390_basr (code, s390_r14, s390_r14);
3693 }
3694 break;
3695 case OP_START_HANDLER: {
3696 S390_LONG (code, stg, stg, s390_r14, 0,
3697 ins->inst_left->inst_basereg,
3698 ins->inst_left->inst_offset);
3699 }
3700 break;
3701 case OP_ENDFILTER: {
3702 if (ins->sreg1 != s390_r2)
3703 s390_lgr(code, s390_r2, ins->sreg1);
3704 S390_LONG (code, lg, lg, s390_r14, 0,
3705 ins->inst_left->inst_basereg,
3706 ins->inst_left->inst_offset);
3707 s390_br (code, s390_r14);
3708 }
3709 break;
3710 case CEE_ENDFINALLY: {
3711 S390_LONG (code, lg, lg, s390_r14, 0,
3712 ins->inst_left->inst_basereg,
3713 ins->inst_left->inst_offset);
3714 s390_br (code, s390_r14);
3715 }
3716 break;
3717 case OP_CALL_HANDLER: {
3718 mono_add_patch_info (cfg, code-cfg->native_code,
3719 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3720 s390_brasl (code, s390_r14, 0);
3721 }
3722 break;
3723 case OP_LABEL: {
3724 ins->inst_c0 = code - cfg->native_code;
3725 }
3726 break;
3727 case CEE_BR:
3728 EMIT_UNCOND_BRANCH(ins);
3729 break;
3730 case OP_BR_REG: {
3731 s390_br (code, ins->sreg1);
3732 }
3733 break;
3734 case OP_CEQ:
3735 case OP_ICEQ: {
3736 s390_lghi(code, ins->dreg, 1);
3737 s390_jz (code, 4);
3738 s390_lghi(code, ins->dreg, 0);
3739 }
3740 break;
3741 case OP_CLT:
3742 case OP_ICLT: {
3743 s390_lghi(code, ins->dreg, 1);
3744 s390_jl (code, 4);
3745 s390_lghi(code, ins->dreg, 0);
3746 }
3747 break;
3748 case OP_CLT_UN:
3749 case OP_ICLT_UN: {
3750 s390_lghi(code, ins->dreg, 1);
3751 s390_jlo (code, 4);
3752 s390_lghi(code, ins->dreg, 0);
3753 }
3754 break;
3755 case OP_CGT:
3756 case OP_ICGT: {
3757 s390_lghi(code, ins->dreg, 1);
3758 s390_jh (code, 4);
3759 s390_lghi(code, ins->dreg, 0);
3760 }
3761 break;
3762 case OP_CGT_UN:
3763 case OP_ICGT_UN: {
3764 s390_lghi(code, ins->dreg, 1);
3765 s390_jho (code, 4);
3766 s390_lghi(code, ins->dreg, 0);
3767 }
3768 break;
3769 case OP_COND_EXC_EQ:
3770 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3771 break;
3772 case OP_COND_EXC_NE_UN:
3773 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3774 break;
3775 case OP_COND_EXC_LT:
3776 case OP_COND_EXC_LT_UN:
3777 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3778 break;
3779 case OP_COND_EXC_GT:
3780 case OP_COND_EXC_GT_UN:
3781 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3782 break;
3783 case OP_COND_EXC_GE:
3784 case OP_COND_EXC_GE_UN:
3785 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3786 break;
3787 case OP_COND_EXC_LE:
3788 case OP_COND_EXC_LE_UN:
3789 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3790 break;
3791 case OP_COND_EXC_OV:
3792 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3793 break;
3794 case OP_COND_EXC_NO:
3795 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3796 break;
3797 case OP_COND_EXC_C:
3798 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3799 break;
3800 case OP_COND_EXC_NC:
3801 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3802 break;
3803 case CEE_BEQ:
3804 case OP_IBEQ:
3805 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3806 break;
3807 case CEE_BNE_UN:
3808 case OP_IBNE_UN:
3809 EMIT_COND_BRANCH (ins, S390_CC_NE);
3810 break;
3811 case CEE_BLT:
3812 case CEE_BLT_UN:
3813 case OP_IBLT:
3814 case OP_IBLT_UN:
3815 EMIT_COND_BRANCH (ins, S390_CC_LT);
3816 break;
3817 case CEE_BGT:
3818 case CEE_BGT_UN:
3819 case OP_IBGT:
3820 case OP_IBGT_UN:
3821 EMIT_COND_BRANCH (ins, S390_CC_GT);
3822 break;
3823 case CEE_BGE:
3824 case CEE_BGE_UN:
3825 case OP_IBGE:
3826 case OP_IBGE_UN:
3827 EMIT_COND_BRANCH (ins, S390_CC_GE);
3828 break;
3829 case CEE_BLE:
3830 case CEE_BLE_UN:
3831 case OP_IBLE:
3832 case OP_IBLE_UN:
3833 EMIT_COND_BRANCH (ins, S390_CC_LE);
3834 break;
3835
3836 /* floating point opcodes */
3837 case OP_R8CONST: {
3838 if (*((float *) ins->inst_p0) == 0) {
3839 s390_lzdr (code, ins->dreg);
3840 } else {
3841 s390_basr (code, s390_r13, 0);
3842 s390_j (code, 6);
3843 s390_llong (code, ins->inst_p0);
3844 s390_lg (code, s390_r13, 0, s390_r13, 4);
3845 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3846 }
3847 }
3848 break;
3849 case OP_R4CONST: {
3850 if (*((float *) ins->inst_p0) == 0) {
3851 s390_lzdr (code, ins->dreg);
3852 } else {
3853 s390_basr (code, s390_r13, 0);
3854 s390_j (code, 6);
3855 s390_llong(code, ins->inst_p0);
3856 s390_lg (code, s390_r13, 0, s390_r13, 4);
3857 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3858 }
3859 }
3860 break;
3861 case OP_STORER8_MEMBASE_REG: {
3862 S390_LONG (code, stdy, std, ins->sreg1, 0,
3863 ins->inst_destbasereg, ins->inst_offset);
3864 }
3865 break;
3866 case OP_LOADR8_MEMBASE: {
3867 S390_LONG (code, ldy, ld, ins->dreg, 0,
3868 ins->inst_basereg, ins->inst_offset);
3869 }
3870 break;
3871 case OP_STORER4_MEMBASE_REG: {
3872 s390_ledbr (code, s390_f15, ins->sreg1);
3873 S390_LONG (code, stey, ste, s390_f15, 0,
3874 ins->inst_destbasereg, ins->inst_offset);
3875 }
3876 break;
3877 case OP_LOADR4_MEMBASE: {
3878 S390_LONG (code, ldy, ld, s390_f15, 0,
3879 ins->inst_basereg, ins->inst_offset);
3880 s390_ldebr (code, ins->dreg, s390_f15);
3881 }
3882 break;
3883 case CEE_CONV_R_UN: {
3884 s390_cdgbr (code, ins->dreg, ins->sreg1);
3885 s390_ltgr (code, ins->sreg1, ins->sreg1);
3886 s390_jnl (code, 12);
3887 s390_basr (code, s390_r13, 0);
3888 s390_j (code, 6);
3889 s390_word (code, 0x41f00000);
3890 s390_word (code, 0);
3891 s390_adb (code, ins->dreg, 0, s390_r13, 4);
3892 }
3893 break;
3894 case OP_LCONV_TO_R4:
3895 case CEE_CONV_R4: {
3896 s390_cdgbr (code, ins->dreg, ins->sreg1);
3897 }
3898 break;
3899 case OP_LCONV_TO_R8:
3900 case CEE_CONV_R8: {
3901 s390_cdgbr (code, ins->dreg, ins->sreg1);
3902 }
3903 break;
3904 case OP_FCONV_TO_I1:
3905 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
3906 break;
3907 case OP_FCONV_TO_U1:
3908 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
3909 break;
3910 case OP_FCONV_TO_I2:
3911 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
3912 break;
3913 case OP_FCONV_TO_U2:
3914 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
3915 break;
3916 case OP_FCONV_TO_I4:
3917 case OP_FCONV_TO_I:
3918 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
3919 break;
3920 case OP_FCONV_TO_U4:
3921 case OP_FCONV_TO_U:
3922 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
3923 break;
3924 case OP_FCONV_TO_I8:
3925 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
3926 break;
3927 case OP_FCONV_TO_U8:
3928 g_assert_not_reached ();
3929 /* Implemented as helper calls */
3930 break;
3931 case OP_LCONV_TO_R_UN:
3932 g_assert_not_reached ();
3933 /* Implemented as helper calls */
3934 break;
3935 case OP_LCONV_TO_OVF_I: {
3936 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
3937 short int *o[5];
3938 s390_ltgr (code, ins->sreg2, ins->sreg2);
3939 s390_jnl (code, 0); CODEPTR(code, o[0]);
3940 s390_ltgr (code, ins->sreg1, ins->sreg1);
3941 s390_jnl (code, 0); CODEPTR(code, o[1]);
3942 s390_lhi (code, s390_r13, -1);
3943 s390_cgr (code, ins->sreg1, s390_r13);
3944 s390_jnz (code, 0); CODEPTR(code, o[2]);
3945 if (ins->dreg != ins->sreg2)
3946 s390_lgr (code, ins->dreg, ins->sreg2);
3947 s390_j (code, 0); CODEPTR(code, o[3]);
3948 PTRSLOT(code, o[0]);
3949 s390_jz (code, 0); CODEPTR(code, o[4]);
3950 PTRSLOT(code, o[1]);
3951 PTRSLOT(code, o[2]);
3952 mono_add_patch_info (cfg, code - cfg->native_code,
3953 MONO_PATCH_INFO_EXC, "OverflowException");
3954 s390_brasl (code, s390_r14, 0);
3955 PTRSLOT(code, o[3]);
3956 PTRSLOT(code, o[4]);
3957 }
3958 break;
3959 case OP_ABS: {
3960 s390_lpdbr (code, ins->dreg, ins->sreg1);
3961 }
3962 break;
3963 case OP_SQRT: {
3964 s390_sqdbr (code, ins->dreg, ins->sreg1);
3965 }
3966 break;
3967 case OP_FADD: {
3968 CHECK_SRCDST_COM_F;
3969 s390_adbr (code, ins->dreg, src2);
3970 }
3971 break;
3972 case OP_FSUB: {
3973 CHECK_SRCDST_NCOM_F;
3974 s390_sdbr (code, ins->dreg, src2);
3975 }
3976 break;
3977 case OP_FMUL: {
3978 CHECK_SRCDST_COM_F;
3979 s390_mdbr (code, ins->dreg, src2);
3980 }
3981 break;
3982 case OP_FDIV: {
3983 CHECK_SRCDST_NCOM_F;
3984 s390_ddbr (code, ins->dreg, src2);
3985 }
3986 break;
3987 case OP_FNEG: {
3988 s390_lcdbr (code, ins->dreg, ins->sreg1);
3989 }
3990 break;
3991 case OP_FREM: {
3992 CHECK_SRCDST_NCOM_F;
3993 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
3994 }
3995 break;
3996 case OP_FCOMPARE: {
3997 s390_cdbr (code, ins->sreg1, ins->sreg2);
3998 }
3999 break;
4000 case OP_FCEQ: {
4001 s390_cdbr (code, ins->sreg1, ins->sreg2);
4002 s390_lghi (code, ins->dreg, 1);
4003 s390_je (code, 4);
4004 s390_lghi (code, ins->dreg, 0);
4005 }
4006 break;
4007 case OP_FCLT: {
4008 s390_cdbr (code, ins->sreg1, ins->sreg2);
4009 s390_lghi (code, ins->dreg, 1);
4010 s390_jl (code, 4);
4011 s390_lghi (code, ins->dreg, 0);
4012 }
4013 break;
4014 case OP_FCLT_UN: {
4015 s390_cdbr (code, ins->sreg1, ins->sreg2);
4016 s390_lghi (code, ins->dreg, 1);
4017 s390_jlo (code, 4);
4018 s390_lghi (code, ins->dreg, 0);
4019 }
4020 break;
4021 case OP_FCGT: {
4022 s390_cdbr (code, ins->sreg1, ins->sreg2);
4023 s390_lghi (code, ins->dreg, 1);
4024 s390_jh (code, 4);
4025 s390_lghi (code, ins->dreg, 0);
4026 }
4027 break;
4028 case OP_FCGT_UN: {
4029 s390_cdbr (code, ins->sreg1, ins->sreg2);
4030 s390_lghi (code, ins->dreg, 1);
4031 s390_jho (code, 4);
4032 s390_lghi (code, ins->dreg, 0);
4033 }
4034 break;
4035 case OP_FBEQ: {
4036 short *o;
4037 s390_jo (code, 0); CODEPTR(code, o);
4038 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4039 PTRSLOT (code, o);
4040 }
4041 break;
4042 case OP_FBNE_UN:
4043 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4044 break;
4045 case OP_FBLT: {
4046 short *o;
4047 s390_jo (code, 0); CODEPTR(code, o);
4048 EMIT_COND_BRANCH (ins, S390_CC_LT);
4049 PTRSLOT (code, o);
4050 }
4051 break;
4052 case OP_FBLT_UN:
4053 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4054 break;
4055 case OP_FBGT: {
4056 short *o;
4057 s390_jo (code, 0); CODEPTR(code, o);
4058 EMIT_COND_BRANCH (ins, S390_CC_GT);
4059 PTRSLOT (code, o);
4060 }
4061 break;
4062 case OP_FBGT_UN:
4063 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4064 break;
4065 case OP_FBGE: {
4066 short *o;
4067 s390_jo (code, 0); CODEPTR(code, o);
4068 EMIT_COND_BRANCH (ins, S390_CC_GE);
4069 PTRSLOT (code, o);
4070 }
4071 break;
4072 case OP_FBGE_UN:
4073 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4074 break;
4075 case OP_FBLE: {
4076 short *o;
4077 s390_jo (code, 0); CODEPTR(code, o);
4078 EMIT_COND_BRANCH (ins, S390_CC_LE);
4079 PTRSLOT (code, o);
4080 }
4081 break;
4082 case OP_FBLE_UN:
4083 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4084 break;
4085 case CEE_CKFINITE: {
4086 short *o;
4087 s390_lhi (code, s390_r13, 0x7f);
4088 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4089 s390_jz (code, 0); CODEPTR(code, o);
4090 mono_add_patch_info (cfg, code - cfg->native_code,
4091 MONO_PATCH_INFO_EXC, "ArithmeticException");
4092 s390_brasl (code, s390_r14,0);
4093 PTRSLOT(code, o);
4094 }
4095 break;
4096 case OP_S390_MOVE: {
4097 if (ins->backend.size > 0) {
4098 if (ins->backend.size <= 256) {
4099 s390_mvc (code, ins->backend.size, ins->dreg,
4100 ins->inst_offset, ins->sreg1, ins->inst_imm);
4101 } else {
4102 s390_lgr (code, s390_r0, ins->dreg);
4103 if (s390_is_imm16 (ins->inst_offset)) {
4104 s390_aghi (code, s390_r0, ins->inst_offset);
4105 } else {
4106 s390_basr (code, s390_r13, 0);
4107 s390_j (code, 6);
4108 s390_llong(code, ins->inst_offset);
4109 s390_a (code, s390_r0, 0, s390_r13, 4);
4110 }
4111 s390_lgr (code, s390_r12, ins->sreg1);
4112 if (s390_is_imm16 (ins->inst_imm)) {
4113 s390_aghi (code, s390_r12, ins->inst_imm);
4114 } else {
4115 s390_basr (code, s390_r13, 0);
4116 s390_j (code, 6);
4117 s390_llong(code, ins->inst_imm);
4118 s390_ag (code, s390_r12, 0, s390_r13, 4);
4119 }
4120 s390_lgr (code, s390_r1, ins->sreg1);
4121 s390_lgr (code, s390_r13, s390_r1);
4122 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4123 s390_jo (code, -2);
4124 }
4125 }
4126 }
4127 break;
4128 case OP_ATOMIC_ADD_I8: {
4129 s390_lgr (code, s390_r1, ins->sreg2);
4130 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4131 s390_agr (code, s390_r1, s390_r0);
4132 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4133 s390_jnz (code, -10);
4134 s390_lgr (code, ins->dreg, s390_r1);
4135 }
4136 break;
4137 case OP_ATOMIC_ADD_NEW_I8: {
4138 s390_lgr (code, s390_r1, ins->sreg2);
4139 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4140 s390_agr (code, s390_r1, s390_r0);
4141 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4142 s390_jnz (code, -10);
4143 s390_lgr (code, ins->dreg, s390_r1);
4144 }
4145 break;
4146 case OP_ATOMIC_EXCHANGE_I8: {
4147 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4148 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4149 s390_jnz (code, -6);
4150 s390_lgr (code, ins->dreg, s390_r0);
4151 }
4152 break;
4153 case OP_ATOMIC_ADD_I4: {
4154 s390_lgfr(code, s390_r1, ins->sreg2);
4155 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4156 s390_agr (code, s390_r1, s390_r0);
4157 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4158 s390_jnz (code, -9);
4159 s390_lgfr(code, ins->dreg, s390_r1);
4160 }
4161 break;
4162 case OP_ATOMIC_ADD_NEW_I4: {
4163 s390_lgfr(code, s390_r1, ins->sreg2);
4164 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4165 s390_agr (code, s390_r1, s390_r0);
4166 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4167 s390_jnz (code, -9);
4168 s390_lgfr(code, ins->dreg, s390_r1);
4169 }
4170 break;
4171 case OP_ATOMIC_EXCHANGE_I4: {
4172 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4173 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4174 s390_jnz (code, -4);
4175 s390_lgfr(code, ins->dreg, s390_r0);
4176 }
4177 break;
4178 case OP_S390_BKCHAIN: {
4179 s390_lgr (code, ins->dreg, ins->sreg1);
4180 if (s390_is_imm16 (cfg->stack_offset)) {
4181 s390_aghi (code, ins->dreg, cfg->stack_offset);
4182 } else {
4183 s390_basr (code, s390_r13, 0);
4184 s390_j (code, 6);
4185 s390_llong(code, cfg->stack_offset);
4186 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4187 }
4188 }
4189 break;
4190 case OP_MEMORY_BARRIER: {
4191 }
4192 break;
4193 default:
4194 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4195 g_assert_not_reached ();
4196 }
4197
4198 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4199 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4200 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4201 g_assert_not_reached ();
4202 }
4203
4204 cpos += max_len;
4205
4206 last_ins = ins;
4207 last_offset = offset;
4208
4209 ins = ins->next;
4210 }
4211
4212 cfg->code_len = code - cfg->native_code;
4213 }
4214
4215 /*========================= End of Function ========================*/
4216
4217 /*------------------------------------------------------------------*/
4218 /* */
4219 /* Name - mono_arch_register_lowlevel_calls */
4220 /* */
4221 /* Function - Register routines to help with --trace operation. */
4222 /* */
4223 /*------------------------------------------------------------------*/
4224
4225 void
4226 mono_arch_register_lowlevel_calls (void)
4227 {
4228 mono_register_jit_icall (mono_arch_break, "mono_arch_break", NULL, TRUE);
4229 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4230 }
4231
4232 /*========================= End of Function ========================*/
4233
4234 /*------------------------------------------------------------------*/
4235 /* */
4236 /* Name - mono_arch_break */
4237 /* */
4238 /* Function - Process a "break" operation for debugging. */
4239 /* */
4240 /*------------------------------------------------------------------*/
4241
4242 static void
4243 mono_arch_break(void) {
4244 }
4245
4246 /*========================= End of Function ========================*/
4247
4248 /*------------------------------------------------------------------*/
4249 /* */
4250 /* Name - mono_arch_patch_code */
4251 /* */
4252 /* Function - Process the patch data created during the */
4253 /* instruction build process. This resolves jumps, */
4254 /* calls, variables etc. */
4255 /* */
4256 /*------------------------------------------------------------------*/
4257
4258 void
4259 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4260 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4261 {
4262 MonoJumpInfo *patch_info;
4263
4264 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4265 unsigned char *ip = patch_info->ip.i + code;
4266 gconstpointer target = NULL;
4267
4268 target = mono_resolve_patch_target (method, domain, code,
4269 patch_info, run_cctors);
4270
4271 switch (patch_info->type) {
4272 case MONO_PATCH_INFO_IP:
4273 case MONO_PATCH_INFO_EXC_NAME:
4274 case MONO_PATCH_INFO_LDSTR:
4275 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4276 case MONO_PATCH_INFO_LDTOKEN:
4277 case MONO_PATCH_INFO_EXC:
4278 case MONO_PATCH_INFO_ABS:
4279 case MONO_PATCH_INFO_METHOD:
4280 case MONO_PATCH_INFO_INTERNAL_METHOD:
4281 case MONO_PATCH_INFO_CLASS_INIT:
4282 s390_patch_addr (ip, (guint64) target);
4283 continue;
4284 case MONO_PATCH_INFO_SWITCH:
4285 /*----------------------------------*/
4286 /* ip points at the basr r13,0/j +4 */
4287 /* instruction the vtable value */
4288 /* follows this (i.e. ip+6) */
4289 /*----------------------------------*/
4290 *((gconstpointer *)(ip+6)) = target;
4291 continue;
4292 case MONO_PATCH_INFO_METHODCONST:
4293 case MONO_PATCH_INFO_CLASS:
4294 case MONO_PATCH_INFO_IMAGE:
4295 case MONO_PATCH_INFO_FIELD:
4296 case MONO_PATCH_INFO_IID:
4297 target = S390_RELATIVE(target, ip);
4298 s390_patch_rel (ip, (guint64) target);
4299 continue;
4300 case MONO_PATCH_INFO_R4:
4301 case MONO_PATCH_INFO_R8:
4302 case MONO_PATCH_INFO_METHOD_REL:
4303 g_assert_not_reached ();
4304 continue;
4305 default:
4306 target = S390_RELATIVE(target, ip);
4307 ip += 2;
4308 s390_patch_rel (ip, (guint64) target);
4309 }
4310 }
4311 }
4312
4313 /*========================= End of Function ========================*/
4314
4315 /*------------------------------------------------------------------*/
4316 /* */
4317 /* Name - emit_load_volatile_registers */
4318 /* */
4319 /* Function - Emit the instructions to reload parameter regist- */
4320 /* registers for use with "tail" operations. */
4321 /* */
4322 /* The register loading operations performed here */
4323 /* are the mirror of the store operations performed */
4324 /* in mono_arch_emit_prolog and need to be kept in */
4325 /* synchronization with it. */
4326 /* */
4327 /*------------------------------------------------------------------*/
4328
4329 guint8 *
4330 emit_load_volatile_registers (guint8 *code, MonoCompile *cfg)
4331 {
4332 MonoInst *inst;
4333 MonoMethod *method = cfg->method;
4334 MonoMethodSignature *sig = mono_method_signature(method);
4335 int pos = 0, i;
4336 CallInfo *cinfo;
4337 size_data sz;
4338
4339 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4340
4341 if (cinfo->struct_ret) {
4342 ArgInfo *ainfo = &cinfo->ret;
4343 inst = cfg->ret;
4344 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4345 }
4346
4347 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4348 ArgInfo *ainfo = cinfo->args + i;
4349 inst = cfg->varinfo [pos];
4350
4351 if (inst->opcode == OP_REGVAR) {
4352 if (ainfo->regtype == RegTypeGeneral)
4353 s390_lgr (code, ainfo->reg, inst->dreg);
4354 else if (ainfo->regtype == RegTypeFP) {
4355 if (inst->dreg != ainfo->reg) {
4356 if (ainfo->size == 4) {
4357 s390_ldebr (code, ainfo->reg, inst->dreg);
4358 } else {
4359 s390_ldr (code, ainfo->reg, inst->dreg);
4360 }
4361 }
4362 }
4363 else if (ainfo->regtype == RegTypeBase) {
4364 } else
4365 g_assert_not_reached ();
4366 } else {
4367 if (ainfo->regtype == RegTypeGeneral) {
4368 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4369 g_assert_not_reached();
4370 switch (ainfo->size) {
4371 case 1:
4372 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4373 break;
4374 case 2:
4375 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4376 break;
4377 case 4:
4378 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4379 break;
4380 case 8:
4381 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4382 break;
4383 }
4384 } else if (ainfo->regtype == RegTypeBase) {
4385 } else if (ainfo->regtype == RegTypeFP) {
4386 if (ainfo->size == 8)
4387 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4388 else if (ainfo->size == 4)
4389 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4390 else
4391 g_assert_not_reached ();
4392 } else if (ainfo->regtype == RegTypeStructByVal) {
4393 if (ainfo->reg != STK_BASE) {
4394 switch (ainfo->size) {
4395 case 1:
4396 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4397 break;
4398 case 2:
4399 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4400 break;
4401 case 4:
4402 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4403 break;
4404 case 8:
4405 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4406 break;
4407 }
4408 }
4409 } else if (ainfo->regtype == RegTypeStructByAddr) {
4410 if (ainfo->reg != STK_BASE) {
4411 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4412 }
4413 } else
4414 g_assert_not_reached ();
4415 }
4416 pos++;
4417 }
4418
4419 g_free (cinfo);
4420
4421 return code;
4422 }
4423
4424 /*========================= End of Function ========================*/
4425
4426 /*------------------------------------------------------------------*/
4427 /* */
4428 /* Name - mono_arch_emit_prolog */
4429 /* */
4430 /* Function - Create the instruction sequence for a function */
4431 /* prolog. */
4432 /* */
4433 /*------------------------------------------------------------------*/
4434
4435 guint8 *
4436 mono_arch_emit_prolog (MonoCompile *cfg)
4437 {
4438 MonoMethod *method = cfg->method;
4439 MonoBasicBlock *bb;
4440 MonoMethodSignature *sig;
4441 MonoInst *inst;
4442 int alloc_size, pos, max_offset, i;
4443 guint8 *code;
4444 CallInfo *cinfo;
4445 size_data sz;
4446 int tracing = 0;
4447 int lmfOffset;
4448
4449 cfg->code_size = 512;
4450
4451 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4452 tracing = 1;
4453 cfg->code_size += 256;
4454 }
4455
4456 if (method->save_lmf)
4457 cfg->code_size += 200;
4458
4459 cfg->native_code = code = g_malloc (cfg->code_size);
4460
4461 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4462
4463 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4464 cfg->used_int_regs |= 1 << 11;
4465 }
4466
4467 alloc_size = cfg->stack_offset;
4468
4469 cfg->stack_usage = alloc_size;
4470 s390_lgr (code, s390_r11, STK_BASE);
4471 if (s390_is_uimm16 (alloc_size)) {
4472 s390_aghi (code, STK_BASE, -alloc_size);
4473 } else {
4474 int stackSize = alloc_size;
4475 while (stackSize > 32767) {
4476 s390_aghi (code, STK_BASE, -32767);
4477 stackSize -= 32767;
4478 }
4479 s390_aghi (code, STK_BASE, -stackSize);
4480 }
4481 s390_stg (code, s390_r11, 0, STK_BASE, 0);
4482
4483 if (cfg->frame_reg != STK_BASE)
4484 s390_lgr (code, s390_r11, STK_BASE);
4485
4486 /* compute max_offset in order to use short forward jumps
4487 * we always do it on s390 because the immediate displacement
4488 * for jumps is too small
4489 */
4490 max_offset = 0;
4491 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4492 MonoInst *ins = bb->code;
4493 bb->max_offset = max_offset;
4494
4495 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4496 max_offset += 6;
4497
4498 while (ins) {
4499 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4500 ins = ins->next;
4501 }
4502 }
4503
4504 /* load arguments allocated to register from the stack */
4505 sig = mono_method_signature (method);
4506 pos = 0;
4507
4508 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4509
4510 if (cinfo->struct_ret) {
4511 ArgInfo *ainfo = &cinfo->ret;
4512 inst = cfg->ret;
4513 inst->backend.size = ainfo->vtsize;
4514 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4515 }
4516
4517 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4518 ArgInfo *ainfo = cinfo->args + i;
4519 inst = cfg->varinfo [pos];
4520
4521 if (inst->opcode == OP_REGVAR) {
4522 if (ainfo->regtype == RegTypeGeneral)
4523 s390_lgr (code, inst->dreg, ainfo->reg);
4524 else if (ainfo->regtype == RegTypeFP) {
4525 if (inst->dreg != ainfo->reg) {
4526 if (ainfo->size == 4) {
4527 s390_ledbr (code, inst->dreg, ainfo->reg);
4528 } else {
4529 s390_ldr (code, inst->dreg, ainfo->reg);
4530 }
4531 }
4532 }
4533 else if (ainfo->regtype == RegTypeBase) {
4534 s390_lgr (code, s390_r13, STK_BASE);
4535 s390_aghi (code, s390_r13, alloc_size);
4536 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
4537 } else
4538 g_assert_not_reached ();
4539
4540 if (cfg->verbose_level > 2)
4541 g_print ("Argument %d assigned to register %s\n",
4542 pos, mono_arch_regname (inst->dreg));
4543 } else {
4544 if (ainfo->regtype == RegTypeGeneral) {
4545 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4546 g_assert_not_reached();
4547 switch (ainfo->size) {
4548 case 1:
4549 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4550 break;
4551 case 2:
4552 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4553 break;
4554 case 4:
4555 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4556 break;
4557 case 8:
4558 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4559 break;
4560 }
4561 } else if (ainfo->regtype == RegTypeBase) {
4562 } else if (ainfo->regtype == RegTypeFP) {
4563 if (ainfo->size == 8)
4564 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4565 else if (ainfo->size == 4)
4566 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4567 else
4568 g_assert_not_reached ();
4569 } else if (ainfo->regtype == RegTypeStructByVal) {
4570 int doffset = inst->inst_offset;
4571 int reg;
4572 if (ainfo->reg != STK_BASE)
4573 reg = ainfo->reg;
4574 else {
4575 reg = s390_r0;
4576 s390_lgr (code, s390_r13, STK_BASE);
4577 s390_aghi (code, s390_r13, alloc_size);
4578 }
4579 switch (ainfo->size) {
4580 case 1:
4581 if (ainfo->reg == STK_BASE)
4582 s390_ic (code, reg, 0, s390_r13, ainfo->offset+7);
4583 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4584 break;
4585 case 2:
4586 if (ainfo->reg == STK_BASE)
4587 s390_lh (code, reg, 0, s390_r13, ainfo->offset+6);
4588 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4589 break;
4590 case 4:
4591 if (ainfo->reg == STK_BASE)
4592 s390_l (code, reg, 0, s390_r13, ainfo->offset+4);
4593 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4594 break;
4595 case 8:
4596 if (ainfo->reg == STK_BASE)
4597 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
4598 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
4599 break;
4600 }
4601 } else if (ainfo->regtype == RegTypeStructByAddr) {
4602 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4603 } else
4604 g_assert_not_reached ();
4605 }
4606 pos++;
4607 }
4608
4609 if (method->save_lmf) {
4610 /*---------------------------------------------------------------*/
4611 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4612 /*---------------------------------------------------------------*/
4613 lmfOffset = alloc_size - sizeof(MonoLMF);
4614
4615 s390_lgr (code, s390_r13, cfg->frame_reg);
4616 s390_aghi (code, s390_r13, lmfOffset);
4617
4618 /*---------------------------------------------------------------*/
4619 /* Preserve the parameter registers while we fix up the lmf */
4620 /*---------------------------------------------------------------*/
4621 s390_stmg (code, s390_r2, s390_r6, s390_r13,
4622 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4623
4624 /*---------------------------------------------------------------*/
4625 /* On return from this call r2 have the address of the &lmf */
4626 /*---------------------------------------------------------------*/
4627 s390_basr(code, s390_r10, 0);
4628 s390_j (code, 6);
4629 mono_add_patch_info (cfg, code - cfg->native_code,
4630 MONO_PATCH_INFO_INTERNAL_METHOD,
4631 (gpointer)"mono_get_lmf_addr");
4632 s390_llong(code, 0);
4633 s390_lg (code, s390_r1, 0, s390_r10, 4);
4634 s390_basr (code, s390_r14, s390_r1);
4635
4636 /*---------------------------------------------------------------*/
4637 /* Set lmf.lmf_addr = jit_tls->lmf */
4638 /*---------------------------------------------------------------*/
4639 s390_stg (code, s390_r2, 0, s390_r13,
4640 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4641
4642 /*---------------------------------------------------------------*/
4643 /* Get current lmf */
4644 /*---------------------------------------------------------------*/
4645 s390_lg (code, s390_r0, 0, s390_r2, 0);
4646
4647 /*---------------------------------------------------------------*/
4648 /* Set our lmf as the current lmf */
4649 /*---------------------------------------------------------------*/
4650 s390_stg (code, s390_r13, 0, s390_r2, 0);
4651
4652 /*---------------------------------------------------------------*/
4653 /* Have our lmf.previous_lmf point to the last lmf */
4654 /*---------------------------------------------------------------*/
4655 s390_stg (code, s390_r0, 0, s390_r13,
4656 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4657
4658 /*---------------------------------------------------------------*/
4659 /* save method info */
4660 /*---------------------------------------------------------------*/
4661 s390_basr (code, s390_r1, 0);
4662 s390_j (code, 6);
4663 s390_llong (code, method);
4664 s390_lg (code, s390_r1, 0, s390_r1, 4);
4665 s390_stg (code, s390_r1, 0, s390_r13,
4666 G_STRUCT_OFFSET(MonoLMF, method));
4667
4668 /*---------------------------------------------------------------*/
4669 /* save the current IP */
4670 /*---------------------------------------------------------------*/
4671 s390_stg (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4672 s390_basr (code, s390_r1, 0);
4673 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4674
4675 /*---------------------------------------------------------------*/
4676 /* Save general and floating point registers */
4677 /*---------------------------------------------------------------*/
4678 s390_stmg (code, s390_r2, s390_r12, s390_r13,
4679 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4680 for (i = 0; i < 16; i++) {
4681 s390_std (code, i, 0, s390_r13,
4682 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4683 }
4684
4685 /*---------------------------------------------------------------*/
4686 /* Restore the parameter registers now that we've set up the lmf */
4687 /*---------------------------------------------------------------*/
4688 s390_lmg (code, s390_r2, s390_r6, s390_r13,
4689 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4690 }
4691
4692 if (tracing)
4693 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4694
4695 cfg->code_len = code - cfg->native_code;
4696 g_assert (cfg->code_len < cfg->code_size);
4697
4698 g_free (cinfo);
4699
4700 return code;
4701 }
4702
4703 /*========================= End of Function ========================*/
4704
4705 /*------------------------------------------------------------------*/
4706 /* */
4707 /* Name - mono_arch_emit_epilog */
4708 /* */
4709 /* Function - Emit the instructions for a function epilog. */
4710 /* */
4711 /*------------------------------------------------------------------*/
4712
4713 void
4714 mono_arch_emit_epilog (MonoCompile *cfg)
4715 {
4716 MonoMethod *method = cfg->method;
4717 int tracing = 0;
4718 guint8 *code;
4719 int max_epilog_size = 96;
4720
4721 if (cfg->method->save_lmf)
4722 max_epilog_size += 128;
4723
4724 if (mono_jit_trace_calls != NULL)
4725 max_epilog_size += 128;
4726
4727 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4728 max_epilog_size += 128;
4729
4730 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4731 cfg->code_size *= 2;
4732 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4733 mono_jit_stats.code_reallocs++;
4734 }
4735
4736 code = cfg->native_code + cfg->code_len;
4737
4738 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4739 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4740 tracing = 1;
4741 }
4742
4743 if (method->save_lmf)
4744 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4745
4746 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4747 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
4748 else
4749 code = backUpStackPtr(cfg, code);
4750
4751 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4752 s390_br (code, s390_r14);
4753
4754 cfg->code_len = code - cfg->native_code;
4755
4756 g_assert (cfg->code_len < cfg->code_size);
4757
4758 }
4759
4760 /*========================= End of Function ========================*/
4761
4762 /*------------------------------------------------------------------*/
4763 /* */
4764 /* Name - mono_arch_emit_exceptions */
4765 /* */
4766 /* Function - Emit the blocks to handle exception conditions. */
4767 /* */
4768 /*------------------------------------------------------------------*/
4769
4770 void
4771 mono_arch_emit_exceptions (MonoCompile *cfg)
4772 {
4773 MonoJumpInfo *patch_info;
4774 guint8 *code;
4775 int nThrows = 0,
4776 exc_count = 0,
4777 iExc;
4778 guint32 code_size;
4779 MonoClass *exc_classes [MAX_EXC];
4780 guint8 *exc_throw_start [MAX_EXC];
4781
4782 for (patch_info = cfg->patch_info;
4783 patch_info;
4784 patch_info = patch_info->next) {
4785 if (patch_info->type == MONO_PATCH_INFO_EXC)
4786 exc_count++;
4787 }
4788
4789 code_size = exc_count * 48;
4790
4791 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4792 cfg->code_size *= 2;
4793 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4794 mono_jit_stats.code_reallocs++;
4795 }
4796
4797 code = cfg->native_code + cfg->code_len;
4798
4799 /*---------------------------------------------------------------------*/
4800 /* Add code to raise exceptions */
4801 /*---------------------------------------------------------------------*/
4802 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4803 switch (patch_info->type) {
4804 case MONO_PATCH_INFO_EXC: {
4805 guint8 *ip = patch_info->ip.i + cfg->native_code;
4806 MonoClass *exc_class;
4807 guint64 throw_ip;
4808
4809 /*-----------------------------------------------------*/
4810 /* Patch the branch in epilog to come here */
4811 /*-----------------------------------------------------*/
4812 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
4813
4814 exc_class = mono_class_from_name (mono_defaults.corlib,
4815 "System",
4816 patch_info->data.name);
4817 g_assert (exc_class);
4818 throw_ip = patch_info->ip.i;
4819
4820 for (iExc = 0; iExc < nThrows; ++iExc)
4821 if (exc_classes [iExc] == exc_class)
4822 break;
4823
4824 if (iExc < nThrows) {
4825 s390_jcl (code, S390_CC_UN,
4826 (guint64) exc_throw_start [iExc]);
4827 patch_info->type = MONO_PATCH_INFO_NONE;
4828 } else {
4829
4830 if (nThrows < MAX_EXC) {
4831 exc_classes [nThrows] = exc_class;
4832 exc_throw_start [nThrows] = code;
4833 }
4834
4835 /*---------------------------------------------*/
4836 /* Patch the parameter passed to the handler */
4837 /*---------------------------------------------*/
4838 s390_basr (code, s390_r13, 0);
4839 s390_j (code, 6);
4840 s390_llong(code, patch_info->data.target);
4841 /*---------------------------------------------*/
4842 /* Load return address & parameter register */
4843 /*---------------------------------------------*/
4844 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
4845 cfg->native_code + 8), code));
4846 s390_lg (code, s390_r2, 0, s390_r13, 4);
4847 /*---------------------------------------------*/
4848 /* Reuse the current patch to set the jump */
4849 /*---------------------------------------------*/
4850 s390_basr (code, s390_r13, 0);
4851 s390_j (code, 6);
4852 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4853 patch_info->data.name = "mono_arch_throw_exception_by_name";
4854 patch_info->ip.i = code - cfg->native_code;
4855 s390_llong(code, 0);
4856 s390_lg (code, s390_r1, 0, s390_r13, 4);
4857 s390_br (code, s390_r1);
4858 }
4859 break;
4860 }
4861 default:
4862 /* do nothing */
4863 break;
4864 }
4865 }
4866
4867 cfg->code_len = code - cfg->native_code;
4868
4869 g_assert (cfg->code_len < cfg->code_size);
4870
4871 }
4872
4873 /*========================= End of Function ========================*/
4874
4875 /*------------------------------------------------------------------*/
4876 /* */
4877 /* Name - mono_arch_setup_jit_tls_data */
4878 /* */
4879 /* Function - Setup the JIT's Thread Level Specific Data. */
4880 /* */
4881 /*------------------------------------------------------------------*/
4882
4883 void
4884 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4885 {
4886 if (!tls_offset_inited) {
4887 tls_offset_inited = TRUE;
4888
4889 #if HAVE_KW_THREAD
4890 # if 0
4891 __asm__ ("\tear\t%r1,0\n"
4892 "\tlr\t%0,%3\n"
4893 "\tsr\t%0,%r1\n"
4894 "\tlr\t%1,%4\n"
4895 "\tsr\t%1,%r1\n"
4896 "\tlr\t%2,%5\n"
4897 "\tsr\t%2,%r1\n"
4898 : "=r" (appdomain_tls_offset),
4899 "=r" (thread_tls_offset),
4900 "=r" (lmf_tls_offset)
4901 : "r" (&tls_appdomain),
4902 "r" (&tls_current_object),
4903 "r" (&mono_lmf_addr)
4904 : "1", "cc");
4905 # endif
4906 #endif
4907 }
4908
4909 if (!lmf_addr_key_inited) {
4910 lmf_addr_key_inited = TRUE;
4911 pthread_key_create (&lmf_addr_key, NULL);
4912 }
4913 pthread_setspecific (lmf_addr_key, &tls->lmf);
4914
4915 }
4916
4917 /*========================= End of Function ========================*/
4918
4919 /*------------------------------------------------------------------*/
4920 /* */
4921 /* Name - mono_arch_free_jit_tls_data */
4922 /* */
4923 /* Function - Free tls data. */
4924 /* */
4925 /*------------------------------------------------------------------*/
4926
4927 void
4928 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4929 {
4930
4931 }
4932
4933 /*========================= End of Function ========================*/
4934
4935 /*------------------------------------------------------------------*/
4936 /* */
4937 /* Name - mono_arch_emit_this_vret_args */
4938 /* */
4939 /* Function - */
4940 /* */
4941 /*------------------------------------------------------------------*/
4942
4943 void
4944 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
4945 {
4946 int this_dreg = s390_r2;
4947
4948 if (vt_reg != -1)
4949 this_dreg = s390_r3;
4950
4951 /* add the this argument */
4952 if (this_reg != -1) {
4953 MonoInst *this;
4954 MONO_INST_NEW (cfg, this, OP_SETREG);
4955 this->type = this_type;
4956 this->sreg1 = this_reg;
4957 this->dreg = mono_regstate_next_int (cfg->rs);
4958 mono_bblock_add_inst (cfg->cbb, this);
4959 mono_call_inst_add_outarg_reg (cfg, inst, this->dreg, this_dreg, FALSE);
4960 }
4961
4962 if (vt_reg != -1) {
4963 MonoInst *vtarg;
4964 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
4965 vtarg->type = STACK_MP;
4966 vtarg->sreg1 = vt_reg;
4967 vtarg->dreg = mono_regstate_next_int (cfg->rs);
4968 mono_bblock_add_inst (cfg->cbb, vtarg);
4969 mono_call_inst_add_outarg_reg (cfg, inst, vtarg->dreg, s390_r2, FALSE);
4970 }
4971 }
4972
4973 /*========================= End of Function ========================*/
4974
4975 /*------------------------------------------------------------------*/
4976 /* */
4977 /* Name - mono_arch_get_inst_for_method */
4978 /* */
4979 /* Function - Check for opcodes we can handle directly in */
4980 /* hardware. */
4981 /* */
4982 /*------------------------------------------------------------------*/
4983
4984 MonoInst*
4985 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
4986 MonoMethodSignature *fsig, MonoInst **args)
4987 {
4988 MonoInst *ins = NULL;
4989
4990 if (cmethod->klass == mono_defaults.math_class) {
4991 if (strcmp (cmethod->name, "Sqrt") == 0) {
4992 MONO_INST_NEW (cfg, ins, OP_SQRT);
4993 ins->inst_i0 = args [0];
4994 }
4995 // if (strcmp (cmethod->name, "Abs") == 0) {
4996 // MONO_INST_NEW (cfg, ins, OP_ABS);
4997 // ins->inst_i0 = args [0];
4998 // }
4999 } else if (cmethod->klass == mono_defaults.thread_class &&
5000 strcmp (cmethod->name, "MemoryBarrier") == 0) {
5001 MONO_INST_NEW (cfg, ins, OP_MEMORY_BARRIER);
5002 } else if(cmethod->klass->image == mono_defaults.corlib &&
5003 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
5004 (strcmp (cmethod->klass->name, "Interlocked") == 0)) {
5005
5006 if (strcmp (cmethod->name, "Increment") == 0) {
5007 MonoInst *ins_iconst;
5008 guint32 opcode = 0;
5009
5010 if (fsig->params [0]->type == MONO_TYPE_I4)
5011 opcode = OP_ATOMIC_ADD_NEW_I4;
5012 else if (fsig->params [0]->type == MONO_TYPE_I8)
5013 opcode = OP_ATOMIC_ADD_NEW_I8;
5014 else
5015 g_assert_not_reached ();
5016
5017 MONO_INST_NEW (cfg, ins, opcode);
5018 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5019 ins_iconst->inst_c0 = 1;
5020
5021 ins->inst_i0 = args [0];
5022 ins->inst_i1 = ins_iconst;
5023 } else if (strcmp (cmethod->name, "Decrement") == 0) {
5024 MonoInst *ins_iconst;
5025 guint32 opcode = 0;
5026
5027 if (fsig->params [0]->type == MONO_TYPE_I4)
5028 opcode = OP_ATOMIC_ADD_NEW_I4;
5029 else if (fsig->params [0]->type == MONO_TYPE_I8)
5030 opcode = OP_ATOMIC_ADD_NEW_I8;
5031 else
5032 g_assert_not_reached ();
5033 MONO_INST_NEW (cfg, ins, opcode);
5034 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5035 ins_iconst->inst_c0 = -1;
5036
5037 ins->inst_i0 = args [0];
5038 ins->inst_i1 = ins_iconst;
5039 /* FIXME: */
5040 } else if (strcmp (cmethod->name, "Exchange") == 0) {
5041 guint32 opcode = 0;
5042
5043 if (fsig->params [0]->type == MONO_TYPE_I4)
5044 opcode = OP_ATOMIC_EXCHANGE_I4;
5045 else if ((fsig->params [0]->type == MONO_TYPE_I8) ||
5046 (fsig->params [0]->type == MONO_TYPE_I) ||
5047 (fsig->params [0]->type == MONO_TYPE_OBJECT))
5048 opcode = OP_ATOMIC_EXCHANGE_I8;
5049 else
5050 return NULL;
5051
5052 MONO_INST_NEW (cfg, ins, opcode);
5053
5054 ins->inst_i0 = args [0];
5055 ins->inst_i1 = args [1];
5056 } else if (strcmp (cmethod->name, "Add") == 0) {
5057 guint32 opcode = 0;
5058
5059 if (fsig->params [0]->type == MONO_TYPE_I4)
5060 opcode = OP_ATOMIC_ADD_I4;
5061 else if (fsig->params [0]->type == MONO_TYPE_I8)
5062 opcode = OP_ATOMIC_ADD_I8;
5063 else
5064 g_assert_not_reached ();
5065
5066 MONO_INST_NEW (cfg, ins, opcode);
5067
5068 ins->inst_i0 = args [0];
5069 ins->inst_i1 = args [1];
5070 } else if ((strcmp (cmethod->name, "Read") == 0 &&
5071 (fsig->params [0]->type == MONO_TYPE_I8))) {
5072 MONO_INST_NEW (cfg, ins, CEE_LDIND_I8);
5073 ins->inst_i0 = args [0];
5074 }
5075 }
5076 return ins;
5077 }
5078
5079 /*========================= End of Function ========================*/
5080
5081 /*------------------------------------------------------------------*/
5082 /* */
5083 /* Name - mono_arch_print_tree */
5084 /* */
5085 /* Function - Print platform-specific opcode details. */
5086 /* */
5087 /* Returns - 1 - opcode details have been printed */
5088 /* 0 - opcode details have not been printed */
5089 /* */
5090 /*------------------------------------------------------------------*/
5091
5092 gboolean
5093 mono_arch_print_tree (MonoInst *tree, int arity)
5094 {
5095 gboolean done;
5096
5097 switch (tree->opcode) {
5098 case OP_S390_LOADARG:
5099 case OP_S390_ARGREG:
5100 case OP_S390_ARGPTR:
5101 printf ("[0x%lx(%s)]", tree->inst_offset,
5102 mono_arch_regname (tree->inst_basereg));
5103 done = 1;
5104 break;
5105 case OP_S390_STKARG:
5106 printf ("[0x%lx(previous_frame)]",
5107 tree->inst_offset);
5108 done = 1;
5109 break;
5110 case OP_S390_MOVE:
5111 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5112 tree->inst_offset, tree->backend.size,
5113 mono_arch_regname(tree->dreg),
5114 tree->inst_imm,
5115 mono_arch_regname(tree->sreg1));
5116 done = 1;
5117 break;
5118 case OP_S390_SETF4RET:
5119 printf ("[f%s,f%s]",
5120 mono_arch_regname (tree->dreg),
5121 mono_arch_regname (tree->sreg1));
5122 done = 1;
5123 break;
5124 case OP_TLS_GET:
5125 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5126 tree->inst_imm,
5127 mono_arch_regname (tree->sreg1));
5128 done = 1;
5129 break;
5130 case OP_S390_BKCHAIN:
5131 printf ("[previous_frame(%s)]",
5132 mono_arch_regname (tree->sreg1));
5133 done = 1;
5134 default:
5135 done = 0;
5136 }
5137 return (done);
5138 }
5139
5140 /*========================= End of Function ========================*/
5141
5142 /*------------------------------------------------------------------*/
5143 /* */
5144 /* Name - mono_arch_regalloc_cost */
5145 /* */
5146 /* Function - Determine the cost, in the number of memory */
5147 /* references, of the action of allocating the var- */
5148 /* iable VMV into a register during global register */
5149 /* allocation. */
5150 /* */
5151 /* Returns - Cost */
5152 /* */
5153 /*------------------------------------------------------------------*/
5154
5155 guint32
5156 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5157 {
5158 /* FIXME: */
5159 return 2;
5160 }
5161
5162 /*========================= End of Function ========================*/
5163
5164 /*------------------------------------------------------------------*/
5165 /* */
5166 /* Name - mono_arch_get_domain_intrinsic */
5167 /* */
5168 /* Function - */
5169 /* */
5170 /* Returns - */
5171 /* */
5172 /*------------------------------------------------------------------*/
5173
5174 MonoInst *
5175 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5176 {
5177 MonoInst *ins;
5178
5179 if (appdomain_tls_offset == -1)
5180 return NULL;
5181
5182 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5183 ins->inst_offset = appdomain_tls_offset;
5184 return (ins);
5185 }
5186
5187 /*========================= End of Function ========================*/
5188
5189 /*------------------------------------------------------------------*/
5190 /* */
5191 /* Name - mono_arch_get_thread_intrinsic */
5192 /* */
5193 /* Function - */
5194 /* */
5195 /* Returns - */
5196 /* */
5197 /*------------------------------------------------------------------*/
5198
5199 MonoInst *
5200 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5201 {
5202 MonoInst *ins;
5203
5204 if (thread_tls_offset == -1)
5205 return NULL;
5206
5207 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5208 ins->inst_offset = thread_tls_offset;
5209 return (ins);
5210 }
5211
5212 /*========================= End of Function ========================*/
5213
5214 /*------------------------------------------------------------------*/
5215 /* */
5216 /* Name - mono_arch_flush_register_windows */
5217 /* */
5218 /* Function - */
5219 /* */
5220 /* Returns - */
5221 /* */
5222 /*------------------------------------------------------------------*/
5223
5224 void
5225 mono_arch_flush_register_windows (void)
5226 {
5227 }
5228
5229 /*========================= End of Function ========================*/
5230
5231 /*------------------------------------------------------------------*/
5232 /* */
5233 /* Name - mono_arch_get_lmf_addr */
5234 /* */
5235 /* Function - */
5236 /* */
5237 /* Returns - */
5238 /* */
5239 /*------------------------------------------------------------------*/
5240
5241 gpointer
5242 mono_arch_get_lmf_addr (void)
5243 {
5244 return pthread_getspecific (lmf_addr_key);
5245 }
5246
5247 /*========================= End of Function ========================*/
5248
5249 /*------------------------------------------------------------------*/
5250 /* */
5251 /* Name - mono_arch_is_inst_imm */
5252 /* */
5253 /* Function - Determine if operand qualifies as an immediate */
5254 /* value. For s390 this is a value -32768-32768 */
5255 /* */
5256 /* Returns - True|False - is [not] immediate value. */
5257 /* */
5258 /*------------------------------------------------------------------*/
5259
5260 gboolean
5261 mono_arch_is_inst_imm (gint64 imm)
5262 {
5263 return s390_is_imm16 (imm);
5264 }
5265
5266 /*========================= End of Function ========================*/
5267
5268 /*------------------------------------------------------------------*/
5269 /* */
5270 /* Name - opcode_to_cond */
5271 /* */
5272 /* Function - Simplify the branch on condition opcode from */
5273 /* more than 20 to just a handful for easy manipu- */
5274 /* lation within the instruction emitting code. */
5275 /* */
5276 /* Returns - CMP_xxx - this simplified condition type. */
5277 /* */
5278 /*------------------------------------------------------------------*/
5279
5280 static CompRelation
5281 opcode_to_cond (int opcode)
5282 {
5283 switch (opcode) {
5284 case CEE_BEQ:
5285 case OP_CEQ:
5286 case OP_IBEQ:
5287 case OP_ICEQ:
5288 case OP_FBEQ:
5289 case OP_FCEQ:
5290 case OP_COND_EXC_EQ:
5291 return CMP_EQ;
5292 case CEE_BNE_UN:
5293 case OP_COND_EXC_NE_UN:
5294 case OP_IBNE_UN:
5295 case OP_FBNE_UN:
5296 return CMP_NE;
5297 case CEE_BLE:
5298 case OP_IBLE:
5299 case OP_FBLE:
5300 return CMP_LE;
5301 case CEE_BGE:
5302 case OP_IBGE:
5303 case OP_FBGE:
5304 return CMP_GE;
5305 case CEE_BLT:
5306 case OP_COND_EXC_LT:
5307 case OP_CLT:
5308 case OP_IBLT:
5309 case OP_ICLT:
5310 case OP_FBLT:
5311 case OP_FCLT:
5312 return CMP_LT;
5313 case CEE_BGT:
5314 case OP_COND_EXC_GT:
5315 case OP_CGT:
5316 case OP_IBGT:
5317 case OP_ICGT:
5318 case OP_FBGT:
5319 case OP_FCGT:
5320 return CMP_GT;
5321
5322 case CEE_BLE_UN:
5323 case OP_COND_EXC_LE_UN:
5324 case OP_IBLE_UN:
5325 case OP_FBLE_UN:
5326 return CMP_LE_UN;
5327 case CEE_BGE_UN:
5328 case OP_IBGE_UN:
5329 case OP_FBGE_UN:
5330 return CMP_GE_UN;
5331 case CEE_BLT_UN:
5332 case OP_CLT_UN:
5333 case OP_IBLT_UN:
5334 case OP_ICLT_UN:
5335 case OP_FBLT_UN:
5336 case OP_FCLT_UN:
5337 case OP_COND_EXC_LT_UN:
5338 return CMP_LT_UN;
5339 case CEE_BGT_UN:
5340 case OP_COND_EXC_GT_UN:
5341 case OP_CGT_UN:
5342 case OP_IBGT_UN:
5343 case OP_ICGT_UN:
5344 case OP_FCGT_UN:
5345 case OP_FBGT_UN:
5346 return CMP_GT_UN;
5347 default:
5348 printf ("%s\n", mono_inst_name (opcode));
5349 g_error("Not implemented\n");
5350 }
5351 return CMP_EQ;
5352 }
5353
5354 /*========================= End of Function ========================*/
5355
5356 /*------------------------------------------------------------------*/
5357 /* */
5358 /* Name - mono_arch_get_patch_offset */
5359 /* */
5360 /* Function - Dummy entry point until s390x supports aot. */
5361 /* */
5362 /* Returns - Offset for patch. */
5363 /* */
5364 /*------------------------------------------------------------------*/
5365
5366 guint32
5367 mono_arch_get_patch_offset (guint8 *code)
5368 {
5369 return 0;
5370 }
5371
5372 /*========================= End of Function ========================*/
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