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* mini-s390[x].c (is_regsize_var): Support PTR/FNPTR too.
[mono.git] / mono / mini / mini-s390x.c
blob09724c7bbf8d3e22b5746ca10a5ed3bf49ad9ff0
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 typedef enum {
206 CMP_EQ,
207 CMP_NE,
208 CMP_LE,
209 CMP_GE,
210 CMP_LT,
211 CMP_GT,
212 CMP_LE_UN,
213 CMP_GE_UN,
214 CMP_LT_UN,
215 CMP_GT_UN
216 } CompRelation;
217
218 typedef enum {
219 CMP_TYPE_L,
220 CMP_TYPE_I,
221 CMP_TYPE_F
222 } CompType;
223
224 /*------------------------------------------------------------------*/
225 /* Used by the instrument_emit_epilog */
226 /*------------------------------------------------------------------*/
227
228 enum {
229 SAVE_NONE,
230 SAVE_STRUCT,
231 SAVE_ONE,
232 SAVE_TWO,
233 SAVE_R4,
234 SAVE_R8
235 };
236
237 typedef struct InstList InstList;
238
239 struct InstList {
240 InstList *prev;
241 InstList *next;
242 MonoInst *data;
243 };
244
245 enum {
246 RegTypeGeneral,
247 RegTypeBase,
248 RegTypeFP,
249 RegTypeStructByVal,
250 RegTypeStructByAddr
251 };
252
253 typedef struct {
254 gint32 offset; /* offset from caller's stack */
255 gint32 offparm; /* offset from callee's stack */
256 guint16 vtsize; /* in param area */
257 guint8 reg;
258 guint8 regtype; /* See RegType* */
259 guint32 size; /* Size of structure used by RegTypeStructByVal */
260 gint32 type; /* Data type of argument */
261 } ArgInfo;
262
263 typedef struct {
264 int nargs;
265 int lastgr;
266 guint32 stack_usage;
267 guint32 struct_ret;
268 ArgInfo ret;
269 ArgInfo sigCookie;
270 ArgInfo args [1];
271 } CallInfo;
272
273 typedef struct {
274 gint64 gr[5]; /* R2-R6 */
275 gdouble fp[3]; /* F0-F2 */
276 } __attribute__ ((packed)) RegParm;
277
278 /*========================= End of Typedefs ========================*/
279
280 /*------------------------------------------------------------------*/
281 /* P r o t o t y p e s */
282 /*------------------------------------------------------------------*/
283
284 static void indent (int);
285 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
286 static void decodeParm (MonoType *, void *, int);
287 static void enter_method (MonoMethod *, RegParm *, char *);
288 static void leave_method (MonoMethod *, ...);
289 static gboolean is_regsize_var (MonoType *);
290 static inline void add_general (guint *, size_data *, ArgInfo *);
291 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
292 static inline void add_float (guint *, size_data *, ArgInfo *);
293 static CallInfo * calculate_sizes (MonoMethodSignature *, size_data *, gboolean);
294 static void peephole_pass (MonoCompile *, MonoBasicBlock *);
295 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
296 static void mono_arch_break(void);
297 gpointer mono_arch_get_lmf_addr (void);
298 static guint8 * emit_load_volatile_registers (guint8 *, MonoCompile *);
299 static CompRelation opcode_to_cond (int);
300 static void catch_SIGILL(int, siginfo_t *, void *);
301 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *, int);
302
303 /*========================= End of Prototypes ======================*/
304
305 /*------------------------------------------------------------------*/
306 /* G l o b a l V a r i a b l e s */
307 /*------------------------------------------------------------------*/
308
309 int mono_exc_esp_offset = 0;
310
311 static int indent_level = 0;
312
313 int has_ld = 0;
314
315 static const char*const * ins_spec = s390x_cpu_desc;
316
317 static gboolean tls_offset_inited = FALSE;
318
319 static int appdomain_tls_offset = -1,
320 lmf_tls_offset = -1,
321 thread_tls_offset = -1;
322
323 pthread_key_t lmf_addr_key;
324
325 gboolean lmf_addr_key_inited = FALSE;
326
327 #if 0
328
329 extern __thread MonoDomain *tls_appdomain;
330 extern __thread MonoThread *tls_current_object;
331 extern __thread gpointer mono_lmf_addr;
332
333 #endif
334
335 /*====================== End of Global Variables ===================*/
336
337 /*------------------------------------------------------------------*/
338 /* */
339 /* Name - mono_arch_regname */
340 /* */
341 /* Function - Returns the name of the register specified by */
342 /* the input parameter. */
343 /* */
344 /*------------------------------------------------------------------*/
345
346 const char*
347 mono_arch_regname (int reg) {
348 static const char * rnames[] = {
349 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
350 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
351 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
352 "s390_r15"
353 };
354
355 if (reg >= 0 && reg < 16)
356 return rnames [reg];
357 else
358 return "unknown";
359 }
360
361 /*========================= End of Function ========================*/
362
363 /*------------------------------------------------------------------*/
364 /* */
365 /* Name - mono_arch_fregname */
366 /* */
367 /* Function - Returns the name of the register specified by */
368 /* the input parameter. */
369 /* */
370 /*------------------------------------------------------------------*/
371
372 const char*
373 mono_arch_fregname (int reg) {
374 static const char * rnames[] = {
375 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
376 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
377 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
378 "s390_f15"
379 };
380
381 if (reg >= 0 && reg < 16)
382 return rnames [reg];
383 else
384 return "unknown";
385 }
386
387 /*========================= End of Function ========================*/
388
389 /*------------------------------------------------------------------*/
390 /* */
391 /* Name - arch_get_argument_info */
392 /* */
393 /* Function - Gathers information on parameters such as size, */
394 /* alignment, and padding. arg_info should be large */
395 /* enough to hold param_count + 1 entries. */
396 /* */
397 /* Parameters - @csig - Method signature */
398 /* @param_count - No. of parameters to consider */
399 /* @arg_info - An array to store the result info */
400 /* */
401 /* Returns - Size of the activation frame */
402 /* */
403 /*------------------------------------------------------------------*/
404
405 int
406 mono_arch_get_argument_info (MonoMethodSignature *csig,
407 int param_count,
408 MonoJitArgumentInfo *arg_info)
409 {
410 int k, frame_size = 0;
411 int size, align, pad;
412 int offset = 8;
413
414 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
415 frame_size += sizeof (gpointer);
416 offset += 8;
417 }
418
419 arg_info [0].offset = offset;
420
421 if (csig->hasthis) {
422 frame_size += sizeof (gpointer);
423 offset += 8;
424 }
425
426 arg_info [0].size = frame_size;
427
428 for (k = 0; k < param_count; k++) {
429
430 if (csig->pinvoke)
431 size = mono_type_native_stack_size (csig->params [k], &align);
432 else
433 size = mono_type_stack_size (csig->params [k], &align);
434
435 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
436 arg_info [k].pad = pad;
437 frame_size += size;
438 arg_info [k + 1].pad = 0;
439 arg_info [k + 1].size = size;
440 offset += pad;
441 arg_info [k + 1].offset = offset;
442 offset += size;
443 }
444
445 align = MONO_ARCH_FRAME_ALIGNMENT;
446 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
447 arg_info [k].pad = pad;
448
449 return frame_size;
450 }
451
452 /*========================= End of Function ========================*/
453
454 /*------------------------------------------------------------------*/
455 /* */
456 /* Name - retFitsInReg. */
457 /* */
458 /* Function - Determines if a value can be returned in one or */
459 /* two registers. */
460 /* */
461 /*------------------------------------------------------------------*/
462
463 static inline gboolean
464 retFitsInReg(guint32 size)
465 {
466 switch (size) {
467 case 0:
468 case 1:
469 case 2:
470 case 4:
471 case 8:
472 return (TRUE);
473 break;
474 default:
475 return (FALSE);
476 }
477 }
478
479 /*========================= End of Function ========================*/
480
481 /*------------------------------------------------------------------*/
482 /* */
483 /* Name - backStackPtr. */
484 /* */
485 /* Function - Restore Stack Pointer to previous frame. */
486 /* */
487 /*------------------------------------------------------------------*/
488
489 static inline guint8 *
490 backUpStackPtr(MonoCompile *cfg, guint8 *code)
491 {
492 int stackSize = cfg->stack_usage;
493
494 if (s390_is_uimm16 (stackSize)) {
495 s390_aghi (code, STK_BASE, stackSize);
496 } else {
497 while (stackSize > 32767) {
498 s390_aghi (code, STK_BASE, 32767);
499 stackSize -= 32767;
500 }
501 s390_aghi (code, STK_BASE, stackSize);
502 }
503 return (code);
504 }
505
506 /*========================= End of Function ========================*/
507
508 /*------------------------------------------------------------------*/
509 /* */
510 /* Name - indent */
511 /* */
512 /* Function - Perform nice indenting to current level */
513 /* */
514 /*------------------------------------------------------------------*/
515
516 static void
517 indent (int diff) {
518 int v;
519 if (diff < 0)
520 indent_level += diff;
521 v = indent_level;
522 printf("[%3d] ",v);
523 while (v-- > 0) {
524 printf (". ");
525 }
526 if (diff > 0)
527 indent_level += diff;
528 }
529
530 /*========================= End of Function ========================*/
531
532 /*------------------------------------------------------------------*/
533 /* */
534 /* Name - decodeParm */
535 /* */
536 /* Function - Decode a parameter for the trace. */
537 /* */
538 /*------------------------------------------------------------------*/
539
540 static void
541 decodeParm(MonoType *type, void *curParm, int size)
542 {
543 guint32 simpleType;
544
545 if (type->byref) {
546 printf("[BYREF:%p], ", *((char **) curParm));
547 } else {
548 simpleType = mono_type_get_underlying_type(type)->type;
549 enum_parmtype:
550 switch (simpleType) {
551 case MONO_TYPE_I :
552 printf ("[INTPTR:%p], ", *((int **) curParm));
553 break;
554 case MONO_TYPE_U :
555 printf ("[UINTPTR:%p], ", *((int **) curParm));
556 break;
557 case MONO_TYPE_BOOLEAN :
558 printf ("[BOOL:%ld], ", *((gint64 *) curParm));
559 break;
560 case MONO_TYPE_CHAR :
561 printf ("[CHAR:%c], ", *((int *) curParm));
562 break;
563 case MONO_TYPE_I1 :
564 printf ("[INT1:%ld], ", *((gint64 *) curParm));
565 break;
566 case MONO_TYPE_I2 :
567 printf ("[INT2:%ld], ", *((gint64 *) curParm));
568 break;
569 case MONO_TYPE_I4 :
570 printf ("[INT4:%ld], ", *((gint64 *) curParm));
571 break;
572 case MONO_TYPE_U1 :
573 printf ("[UINT1:%lu], ", *((guint64 *) curParm));
574 break;
575 case MONO_TYPE_U2 :
576 printf ("[UINT2:%lu], ", *((guint64 *) curParm));
577 break;
578 case MONO_TYPE_U4 :
579 printf ("[UINT4:%lu], ", *((guint64 *) curParm));
580 break;
581 case MONO_TYPE_U8 :
582 printf ("[UINT8:%lu], ", *((guint64 *) curParm));
583 break;
584 case MONO_TYPE_STRING : {
585 MonoString *s = *((MonoString **) curParm);
586 if (s) {
587 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
588 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
589 } else {
590 printf("[STRING:null], ");
591 }
592 break;
593 }
594 case MONO_TYPE_CLASS :
595 case MONO_TYPE_OBJECT : {
596 MonoObject *obj = *((MonoObject **) curParm);
597 MonoClass *class;
598 if ((obj) && (obj->vtable)) {
599 printf("[CLASS/OBJ:");
600 class = obj->vtable->klass;
601 printf("%p [%p] ",obj,curParm);
602 if (class == mono_defaults.string_class) {
603 printf("[STRING:%p:%s]",
604 obj, mono_string_to_utf8 ((MonoString *) obj));
605 } else if (class == mono_defaults.int32_class) {
606 printf("[INT32:%p:%d]",
607 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
608 } else
609 printf("[%s.%s:%p]",
610 class->name_space, class->name, obj);
611 printf("], ");
612 } else {
613 printf("[OBJECT:null], ");
614 }
615 break;
616 }
617 case MONO_TYPE_PTR :
618 printf("[PTR:%p], ", *((gpointer **) (curParm)));
619 break;
620 case MONO_TYPE_FNPTR :
621 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
622 break;
623 case MONO_TYPE_ARRAY :
624 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
625 break;
626 case MONO_TYPE_SZARRAY :
627 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
628 break;
629 case MONO_TYPE_I8 :
630 printf("[INT8:%ld], ", *((gint64 *) (curParm)));
631 break;
632 case MONO_TYPE_R4 :
633 printf("[FLOAT4:%g], ", *((float *) (curParm)));
634 break;
635 case MONO_TYPE_R8 :
636 printf("[FLOAT8:%g], ", *((double *) (curParm)));
637 break;
638 case MONO_TYPE_VALUETYPE : {
639 int i;
640 MonoMarshalType *info;
641
642 if (type->data.klass->enumtype) {
643 simpleType = type->data.klass->enum_basetype->type;
644 printf("{VALUETYPE} - ");
645 goto enum_parmtype;
646 }
647
648 info = mono_marshal_load_type_info (type->data.klass);
649
650 if ((info->native_size == sizeof(float)) &&
651 (info->num_fields == 1) &&
652 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
653 printf("[FLOAT4:%f], ", *((float *) (curParm)));
654 break;
655 }
656
657 if ((info->native_size == sizeof(double)) &&
658 (info->num_fields == 1) &&
659 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
660 printf("[FLOAT8:%g], ", *((double *) (curParm)));
661 break;
662 }
663
664 printf("[VALUETYPE:");
665 for (i = 0; i < size; i++)
666 printf("%02x,", *((guint8 *)curParm+i));
667 printf("]");
668 break;
669 }
670 case MONO_TYPE_TYPEDBYREF: {
671 int i;
672 printf("[TYPEDBYREF:");
673 for (i = 0; i < size; i++)
674 printf("%02x,", *((guint8 *)curParm+i));
675 printf("]");
676 break;
677 }
678 default :
679 printf("[?? - %d], ",simpleType);
680 }
681 }
682 }
683
684 /*========================= End of Function ========================*/
685
686 /*------------------------------------------------------------------*/
687 /* */
688 /* Name - enter_method */
689 /* */
690 /* Function - Perform tracing of the entry to the current */
691 /* method. */
692 /* */
693 /*------------------------------------------------------------------*/
694
695 static void
696 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
697 {
698 int i, oParm = 0, iParm = 0;
699 MonoClass *class;
700 MonoObject *obj;
701 MonoMethodSignature *sig;
702 char *fname;
703 guint64 ip;
704 CallInfo *cinfo;
705 ArgInfo *ainfo;
706 size_data sz;
707 void *curParm;
708
709 fname = mono_method_full_name (method, TRUE);
710 indent (1);
711 printf ("ENTER: %s ", fname);
712 g_free (fname);
713
714 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
715 printf ("ip: %p sp: %p - ", (gpointer) ip, sp);
716
717 if (rParm == NULL)
718 return;
719
720 sig = mono_method_signature (method);
721
722 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
723
724 if (cinfo->struct_ret) {
725 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
726 iParm = 1;
727 }
728
729 if (sig->hasthis) {
730 gpointer *this = (gpointer *) rParm->gr[iParm];
731 obj = (MonoObject *) this;
732 if (method->klass->valuetype) {
733 if (obj) {
734 printf("this:[value:%p:%016lx], ",
735 this, *((guint64 *)(this+sizeof(MonoObject))));
736 } else
737 printf ("this:[NULL], ");
738 } else {
739 if (obj) {
740 class = obj->vtable->klass;
741 if (class == mono_defaults.string_class) {
742 printf ("this:[STRING:%p:%s], ",
743 obj, mono_string_to_utf8 ((MonoString *)obj));
744 } else {
745 printf ("this:%p[%s.%s], ",
746 obj, class->name_space, class->name);
747 }
748 } else
749 printf ("this:NULL, ");
750 }
751 oParm++;
752 }
753
754 for (i = 0; i < sig->param_count; ++i) {
755 ainfo = &cinfo->args[i + oParm];
756 switch (ainfo->regtype) {
757 case RegTypeGeneral :
758 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
759 break;
760 case RegTypeFP :
761 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
762 break;
763 case RegTypeBase :
764 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
765 break;
766 case RegTypeStructByVal :
767 if (ainfo->reg != STK_BASE) {
768 int offset = sizeof(glong) - ainfo->size;
769 curParm = &(rParm->gr[ainfo->reg-2])+offset;
770 }
771 else
772 curParm = sp+ainfo->offset;
773
774 if (retFitsInReg (ainfo->vtsize))
775 decodeParm(sig->params[i],
776 curParm,
777 ainfo->size);
778 else
779 decodeParm(sig->params[i],
780 *((char **) curParm),
781 ainfo->vtsize);
782 break;
783 case RegTypeStructByAddr :
784 if (ainfo->reg != STK_BASE)
785 curParm = &(rParm->gr[ainfo->reg-2]);
786 else
787 curParm = sp+ainfo->offset;
788
789 decodeParm(sig->params[i],
790 *((char **) curParm),
791 ainfo->vtsize);
792 break;
793
794 default :
795 printf("???, ");
796 }
797 }
798 printf("\n");
799 g_free(cinfo);
800 }
801
802 /*========================= End of Function ========================*/
803
804 /*------------------------------------------------------------------*/
805 /* */
806 /* Name - leave_method */
807 /* */
808 /* Function - */
809 /* */
810 /*------------------------------------------------------------------*/
811
812 static void
813 leave_method (MonoMethod *method, ...)
814 {
815 MonoType *type;
816 char *fname;
817 guint64 ip;
818 va_list ap;
819
820 va_start(ap, method);
821
822 fname = mono_method_full_name (method, TRUE);
823 indent (-1);
824 printf ("LEAVE: %s", fname);
825 g_free (fname);
826
827 type = mono_method_signature (method)->ret;
828
829 handle_enum:
830 switch (type->type) {
831 case MONO_TYPE_VOID:
832 break;
833 case MONO_TYPE_BOOLEAN: {
834 int val = va_arg (ap, int);
835 if (val)
836 printf ("[TRUE:%d]", val);
837 else
838 printf ("[FALSE]");
839
840 break;
841 }
842 case MONO_TYPE_CHAR: {
843 int val = va_arg (ap, int);
844 printf ("[CHAR:%d]", val);
845 break;
846 }
847 case MONO_TYPE_I1: {
848 int val = va_arg (ap, int);
849 printf ("[INT1:%d]", val);
850 break;
851 }
852 case MONO_TYPE_U1: {
853 int val = va_arg (ap, int);
854 printf ("[UINT1:%d]", val);
855 break;
856 }
857 case MONO_TYPE_I2: {
858 int val = va_arg (ap, int);
859 printf ("[INT2:%d]", val);
860 break;
861 }
862 case MONO_TYPE_U2: {
863 int val = va_arg (ap, int);
864 printf ("[UINT2:%d]", val);
865 break;
866 }
867 case MONO_TYPE_I4: {
868 int val = va_arg (ap, int);
869 printf ("[INT4:%d]", val);
870 break;
871 }
872 case MONO_TYPE_U4: {
873 int val = va_arg (ap, int);
874 printf ("[UINT4:%d]", val);
875 break;
876 }
877 case MONO_TYPE_I: {
878 gint64 val = va_arg (ap, gint64);
879 printf ("[INT:%ld]", val);
880 printf("]");
881 break;
882 }
883 case MONO_TYPE_U: {
884 gint64 val = va_arg (ap, gint64);
885 printf ("[UINT:%lu]", val);
886 printf("]");
887 break;
888 }
889 case MONO_TYPE_STRING: {
890 MonoString *s = va_arg (ap, MonoString *);
891 ;
892 if (s) {
893 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
894 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
895 } else
896 printf ("[STRING:null], ");
897 break;
898 }
899 case MONO_TYPE_CLASS:
900 case MONO_TYPE_OBJECT: {
901 MonoObject *o = va_arg (ap, MonoObject *);
902
903 if ((o) && (o->vtable)) {
904 if (o->vtable->klass == mono_defaults.boolean_class) {
905 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
906 } else if (o->vtable->klass == mono_defaults.int32_class) {
907 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
908 } else if (o->vtable->klass == mono_defaults.int64_class) {
909 printf ("[INT64:%p:%ld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
910 } else
911 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
912 } else
913 printf ("[OBJECT:%p]", o);
914
915 break;
916 }
917 case MONO_TYPE_PTR:
918 case MONO_TYPE_FNPTR:
919 case MONO_TYPE_ARRAY:
920 case MONO_TYPE_SZARRAY: {
921 gpointer p = va_arg (ap, gpointer);
922 printf ("[result=%p]", p);
923 break;
924 }
925 case MONO_TYPE_I8: {
926 gint64 l = va_arg (ap, gint64);
927 printf ("[LONG:%ld]", l);
928 break;
929 }
930 case MONO_TYPE_U8: {
931 guint64 l = va_arg (ap, guint64);
932 printf ("[ULONG:%lu]", l);
933 break;
934 }
935 case MONO_TYPE_R4: {
936 double f = va_arg (ap, double);
937 printf ("[FLOAT4:%g]\n", f);
938 break;
939 }
940 case MONO_TYPE_R8: {
941 double f = va_arg (ap, double);
942 printf ("[FLOAT8:%g]\n", f);
943 break;
944 }
945 case MONO_TYPE_VALUETYPE: {
946 MonoMarshalType *info;
947 if (type->data.klass->enumtype) {
948 type = type->data.klass->enum_basetype;
949 goto handle_enum;
950 } else {
951 guint8 *p = va_arg (ap, gpointer);
952 int j, size, align;
953
954 info = mono_marshal_load_type_info (type->data.klass);
955
956 if ((info->native_size == sizeof(float)) &&
957 (info->num_fields == 1) &&
958 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
959 double f = va_arg (ap, double);
960 printf("[FLOAT4:%g]\n", (double) f);
961 break;
962 }
963
964 if ((info->native_size == sizeof(double)) &&
965 (info->num_fields == 1) &&
966 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
967 double f = va_arg (ap, double);
968 printf("[FLOAT8:%g]\n", f);
969 break;
970 }
971
972 size = mono_type_size (type, &align);
973 switch (size) {
974 case 1:
975 case 2:
976 case 4:
977 case 8:
978 printf ("[");
979 for (j = 0; p && j < size; j++)
980 printf ("%02x,", p [j]);
981 printf ("]\n");
982 break;
983 default:
984 printf ("[VALUETYPE]\n");
985 }
986 }
987 break;
988 }
989 case MONO_TYPE_TYPEDBYREF: {
990 guint8 *p = va_arg (ap, gpointer);
991 int j, size, align;
992 size = mono_type_size (type, &align);
993 switch (size) {
994 case 1:
995 case 2:
996 case 4:
997 case 8:
998 printf ("[");
999 for (j = 0; p && j < size; j++)
1000 printf ("%02x,", p [j]);
1001 printf ("]\n");
1002 break;
1003 default:
1004 printf ("[TYPEDBYREF]\n");
1005 }
1006 }
1007 break;
1008 default:
1009 printf ("(unknown return type %x)",
1010 mono_method_signature (method)->ret->type);
1011 }
1012
1013 ip = ((gint64) __builtin_return_address (0));
1014 printf (" ip: %p\n", (gpointer) ip);
1015 }
1016
1017 /*========================= End of Function ========================*/
1018
1019 /*------------------------------------------------------------------*/
1020 /* */
1021 /* Name - catch_SIGILL */
1022 /* */
1023 /* Function - Catch SIGILL as a result of testing for long */
1024 /* displacement facility. */
1025 /* */
1026 /*------------------------------------------------------------------*/
1027
1028 void
1029 catch_SIGILL(int sigNo, siginfo_t *info, void *act) {
1030
1031 has_ld = 0;
1032
1033 }
1034
1035 /*========================= End of Function ========================*/
1036
1037 /*------------------------------------------------------------------*/
1038 /* */
1039 /* Name - mono_arch_cpu_init */
1040 /* */
1041 /* Function - Perform CPU specific initialization to execute */
1042 /* managed code. */
1043 /* */
1044 /*------------------------------------------------------------------*/
1045
1046 void
1047 mono_arch_cpu_init (void)
1048 {
1049 struct sigaction sa,
1050 *oldSa = NULL;
1051 guint mode = 1;
1052
1053 /*--------------------------------------*/
1054 /* Set default rounding mode for FP */
1055 /*--------------------------------------*/
1056 __asm__ ("SRNM\t%0\n\t"
1057 : : "m" (mode));
1058
1059 /*--------------------------------------*/
1060 /* Determine if we have long displace- */
1061 /* ment facility on this processor */
1062 /*--------------------------------------*/
1063 sa.sa_sigaction = catch_SIGILL;
1064 sigemptyset (&sa.sa_mask);
1065 sa.sa_flags = SA_SIGINFO;
1066
1067 sigaction (SIGILL, &sa, oldSa);
1068
1069 /*--------------------------------------*/
1070 /* We test by executing the STY inst */
1071 /*--------------------------------------*/
1072 __asm__ ("LGHI\t0,1\n\t"
1073 "LA\t1,%0\n\t"
1074 ".byte\t0xe3,0x00,0x10,0x00,0x00,0x50\n\t"
1075 : "=m" (has_ld) : : "0", "1");
1076
1077 sigaction (SIGILL, oldSa, NULL);
1078 }
1079
1080 /*========================= End of Function ========================*/
1081
1082 /*------------------------------------------------------------------*/
1083 /* */
1084 /* Name - mono_arch_cpu_optimizazions */
1085 /* */
1086 /* Function - Returns the optimizations supported on this CPU */
1087 /* */
1088 /*------------------------------------------------------------------*/
1089
1090 guint32
1091 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1092 {
1093 guint32 opts = 0;
1094
1095 /*----------------------------------------------------------*/
1096 /* No s390-specific optimizations yet */
1097 /*----------------------------------------------------------*/
1098 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1099 // *exclude_mask = MONO_OPT_INLINE;
1100 return opts;
1101 }
1102
1103 /*========================= End of Function ========================*/
1104
1105 /*------------------------------------------------------------------*/
1106 /* */
1107 /* Name - */
1108 /* */
1109 /* Function - */
1110 /* */
1111 /*------------------------------------------------------------------*/
1112
1113 static gboolean
1114 is_regsize_var (MonoType *t) {
1115 if (t->byref)
1116 return TRUE;
1117 switch (mono_type_get_underlying_type (t)->type) {
1118 case MONO_TYPE_I4:
1119 case MONO_TYPE_U4:
1120 case MONO_TYPE_I:
1121 case MONO_TYPE_I8:
1122 case MONO_TYPE_U8:
1123 case MONO_TYPE_U:
1124 case MONO_TYPE_PTR:
1125 case MONO_TYPE_FNPTR:
1126 return TRUE;
1127 case MONO_TYPE_OBJECT:
1128 case MONO_TYPE_STRING:
1129 case MONO_TYPE_CLASS:
1130 case MONO_TYPE_SZARRAY:
1131 case MONO_TYPE_ARRAY:
1132 return FALSE;
1133 case MONO_TYPE_VALUETYPE:
1134 if (t->data.klass->enumtype)
1135 return is_regsize_var (t->data.klass->enum_basetype);
1136 return FALSE;
1137 }
1138 return FALSE;
1139 }
1140
1141 /*========================= End of Function ========================*/
1142
1143 /*------------------------------------------------------------------*/
1144 /* */
1145 /* Name - mono_arch_get_allocatable_int_vars */
1146 /* */
1147 /* Function - */
1148 /* */
1149 /*------------------------------------------------------------------*/
1150
1151 GList *
1152 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1153 {
1154 GList *vars = NULL;
1155 int i;
1156
1157 for (i = 0; i < cfg->num_varinfo; i++) {
1158 MonoInst *ins = cfg->varinfo [i];
1159 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1160
1161 /* unused vars */
1162 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1163 continue;
1164
1165 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1166 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1167 continue;
1168
1169 /* we can only allocate 32 bit values */
1170 if (is_regsize_var (ins->inst_vtype)) {
1171 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1172 g_assert (i == vmv->idx);
1173 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1174 }
1175 }
1176
1177 return vars;
1178 }
1179
1180 /*========================= End of Function ========================*/
1181
1182 /*------------------------------------------------------------------*/
1183 /* */
1184 /* Name - mono_arch_global_int_regs */
1185 /* */
1186 /* Function - Return a list of usable integer registers. */
1187 /* */
1188 /*------------------------------------------------------------------*/
1189
1190 GList *
1191 mono_arch_get_global_int_regs (MonoCompile *cfg)
1192 {
1193 GList *regs = NULL;
1194 MonoMethodHeader *header;
1195 int i, top = 13;
1196
1197 header = mono_method_get_header (cfg->method);
1198 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1199 cfg->frame_reg = s390_r11;
1200
1201 for (i = 8; i < top; ++i) {
1202 if (cfg->frame_reg != i)
1203 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1204 }
1205
1206 return regs;
1207 }
1208
1209 /*========================= End of Function ========================*/
1210
1211 /*------------------------------------------------------------------*/
1212 /* */
1213 /* Name - mono_arch_flush_icache */
1214 /* */
1215 /* Function - Flush the CPU icache. */
1216 /* */
1217 /*------------------------------------------------------------------*/
1218
1219 void
1220 mono_arch_flush_icache (guint8 *code, gint size)
1221 {
1222 }
1223
1224 /*========================= End of Function ========================*/
1225
1226 /*------------------------------------------------------------------*/
1227 /* */
1228 /* Name - add_general */
1229 /* */
1230 /* Function - Determine code and stack size incremements for a */
1231 /* parameter. */
1232 /* */
1233 /*------------------------------------------------------------------*/
1234
1235 static void inline
1236 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1237 {
1238 if (*gr > S390_LAST_ARG_REG) {
1239 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1240 ainfo->offset = sz->stack_size;
1241 ainfo->reg = STK_BASE;
1242 ainfo->regtype = RegTypeBase;
1243 sz->stack_size += sizeof(long);
1244 sz->local_size += sizeof(long);
1245 sz->offStruct += sizeof(long);
1246 sz->code_size += 12;
1247 } else {
1248 ainfo->reg = *gr;
1249 sz->code_size += 8;
1250 }
1251 (*gr) ++;
1252 }
1253
1254 /*========================= End of Function ========================*/
1255
1256 /*------------------------------------------------------------------*/
1257 /* */
1258 /* Name - add_stackParm */
1259 /* */
1260 /* Function - Determine code and stack size incremements for a */
1261 /* parameter. */
1262 /* */
1263 /*------------------------------------------------------------------*/
1264
1265 static void inline
1266 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1267 {
1268 if (*gr > S390_LAST_ARG_REG) {
1269 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1270 ainfo->reg = STK_BASE;
1271 sz->stack_size += sizeof(gpointer);
1272 sz->offStruct += sizeof(gpointer);
1273 } else {
1274 ainfo->reg = *gr;
1275 }
1276 (*gr) ++;
1277 ainfo->offset = sz->stack_size;
1278 ainfo->offparm = sz->offset;
1279 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1280 ainfo->size = size;
1281 ainfo->regtype = RegTypeStructByAddr;
1282 ainfo->vtsize = size;
1283 sz->parm_size += size;
1284 }
1285
1286 /*========================= End of Function ========================*/
1287
1288 /*------------------------------------------------------------------*/
1289 /* */
1290 /* Name - add_float */
1291 /* */
1292 /* Function - Determine code and stack size incremements for a */
1293 /* float parameter. */
1294 /* */
1295 /*------------------------------------------------------------------*/
1296
1297 static void inline
1298 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1299 {
1300 if ((*fr) <= S390_LAST_FPARG_REG) {
1301 ainfo->regtype = RegTypeFP;
1302 ainfo->reg = *fr;
1303 sz->code_size += 4;
1304 (*fr) += 2;
1305 }
1306 else {
1307 ainfo->offset = sz->stack_size;
1308 ainfo->reg = STK_BASE;
1309 ainfo->regtype = RegTypeBase;
1310 sz->code_size += 4;
1311 sz->stack_size += sizeof(double);
1312 sz->local_size += sizeof(double);
1313 sz->offStruct += sizeof(double);
1314 }
1315 }
1316
1317 /*========================= End of Function ========================*/
1318
1319 /*------------------------------------------------------------------*/
1320 /* */
1321 /* Name - calculate_sizes */
1322 /* */
1323 /* Function - Determine the amount of space required for code */
1324 /* and stack. In addition determine starting points */
1325 /* for stack-based parameters, and area for struct- */
1326 /* ures being returned on the stack. */
1327 /* */
1328 /*------------------------------------------------------------------*/
1329
1330 static CallInfo *
1331 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1332 gboolean string_ctor)
1333 {
1334 guint i, fr, gr, size;
1335 int nParm = sig->hasthis + sig->param_count;
1336 guint32 simpletype, align;
1337 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1338
1339 fr = 0;
1340 gr = s390_r2;
1341 nParm = 0;
1342 cinfo->struct_ret = 0;
1343 sz->retStruct = 0;
1344 sz->offset = 0;
1345 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1346 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1347 sz->code_size = 0;
1348 sz->parm_size = 0;
1349 sz->local_size = 0;
1350
1351 /*----------------------------------------------------------*/
1352 /* We determine the size of the return code/stack in case we*/
1353 /* need to reserve a register to be used to address a stack */
1354 /* area that the callee will use. */
1355 /*----------------------------------------------------------*/
1356
1357 simpletype = mono_type_get_underlying_type (sig->ret)->type;
1358 enum_retvalue:
1359 switch (simpletype) {
1360 case MONO_TYPE_BOOLEAN:
1361 case MONO_TYPE_I1:
1362 case MONO_TYPE_U1:
1363 case MONO_TYPE_I2:
1364 case MONO_TYPE_U2:
1365 case MONO_TYPE_CHAR:
1366 case MONO_TYPE_I4:
1367 case MONO_TYPE_U4:
1368 case MONO_TYPE_I:
1369 case MONO_TYPE_U:
1370 case MONO_TYPE_CLASS:
1371 case MONO_TYPE_OBJECT:
1372 case MONO_TYPE_SZARRAY:
1373 case MONO_TYPE_ARRAY:
1374 case MONO_TYPE_PTR:
1375 case MONO_TYPE_FNPTR:
1376 case MONO_TYPE_STRING:
1377 cinfo->ret.reg = s390_r2;
1378 sz->code_size += 4;
1379 break;
1380 case MONO_TYPE_R4:
1381 case MONO_TYPE_R8:
1382 cinfo->ret.reg = s390_f0;
1383 sz->code_size += 4;
1384 break;
1385 case MONO_TYPE_I8:
1386 case MONO_TYPE_U8:
1387 cinfo->ret.reg = s390_r2;
1388 sz->code_size += 4;
1389 break;
1390 case MONO_TYPE_GENERICINST:
1391 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1392 cinfo->ret.reg = s390_r2;
1393 sz->code_size += 4;
1394 break;
1395 }
1396 /* Fall through */
1397 case MONO_TYPE_VALUETYPE: {
1398 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1399 if (sig->ret->data.klass->enumtype) {
1400 simpletype = sig->ret->data.klass->enum_basetype->type;
1401 goto enum_retvalue;
1402 }
1403 if (sig->pinvoke)
1404 size = mono_class_native_size (klass, &align);
1405 else
1406 size = mono_class_value_size (klass, &align);
1407
1408 cinfo->ret.reg = s390_r2;
1409 cinfo->struct_ret = 1;
1410 cinfo->ret.size = size;
1411 cinfo->ret.vtsize = size;
1412 gr++;
1413 break;
1414 }
1415 case MONO_TYPE_TYPEDBYREF:
1416 size = sizeof (MonoTypedRef);
1417 cinfo->ret.reg = s390_r2;
1418 cinfo->struct_ret = 1;
1419 cinfo->ret.size = size;
1420 cinfo->ret.vtsize = size;
1421 gr++;
1422 break;
1423 case MONO_TYPE_VOID:
1424 break;
1425 default:
1426 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1427 }
1428
1429 if (sig->hasthis) {
1430 cinfo->args[nParm].size = sizeof(gpointer);
1431 add_general (&gr, sz, cinfo->args+nParm);
1432 nParm++;
1433 }
1434
1435 /*----------------------------------------------------------*/
1436 /* We determine the size of the parameter code and stack */
1437 /* requirements by checking the types and sizes of the */
1438 /* parameters. */
1439 /*----------------------------------------------------------*/
1440
1441 for (i = 0; i < sig->param_count; ++i) {
1442 /*--------------------------------------------------*/
1443 /* Handle vararg type calls. All args are put on */
1444 /* the stack. */
1445 /*--------------------------------------------------*/
1446 if ((sig->call_convention == MONO_CALL_VARARG) &&
1447 (i == sig->sentinelpos)) {
1448 gr = S390_LAST_ARG_REG + 1;
1449 add_general (&gr, sz, &cinfo->sigCookie);
1450 }
1451
1452 if (sig->params [i]->byref) {
1453 add_general (&gr, sz, cinfo->args+nParm);
1454 cinfo->args[nParm].size = sizeof(gpointer);
1455 nParm++;
1456 continue;
1457 }
1458
1459 simpletype = mono_type_get_underlying_type(sig->params [i])->type;
1460 cinfo->args[nParm].type = simpletype;
1461 switch (simpletype) {
1462 case MONO_TYPE_BOOLEAN:
1463 case MONO_TYPE_I1:
1464 case MONO_TYPE_U1:
1465 cinfo->args[nParm].size = sizeof(char);
1466 add_general (&gr, sz, cinfo->args+nParm);
1467 nParm++;
1468 break;
1469 case MONO_TYPE_I2:
1470 case MONO_TYPE_U2:
1471 case MONO_TYPE_CHAR:
1472 cinfo->args[nParm].size = sizeof(short);
1473 add_general (&gr, sz, cinfo->args+nParm);
1474 nParm++;
1475 break;
1476 case MONO_TYPE_I4:
1477 case MONO_TYPE_U4:
1478 cinfo->args[nParm].size = sizeof(int);
1479 add_general (&gr, sz, cinfo->args+nParm);
1480 nParm++;
1481 break;
1482 case MONO_TYPE_I:
1483 case MONO_TYPE_U:
1484 case MONO_TYPE_PTR:
1485 case MONO_TYPE_FNPTR:
1486 case MONO_TYPE_CLASS:
1487 case MONO_TYPE_OBJECT:
1488 case MONO_TYPE_STRING:
1489 case MONO_TYPE_SZARRAY:
1490 case MONO_TYPE_ARRAY:
1491 cinfo->args[nParm].size = sizeof(gpointer);
1492 add_general (&gr, sz, cinfo->args+nParm);
1493 nParm++;
1494 break;
1495 case MONO_TYPE_I8:
1496 case MONO_TYPE_U8:
1497 cinfo->args[nParm].size = sizeof(long long);
1498 add_general (&gr, sz, cinfo->args+nParm);
1499 nParm++;
1500 break;
1501 case MONO_TYPE_R4:
1502 cinfo->args[nParm].size = sizeof(float);
1503 add_float (&fr, sz, cinfo->args+nParm);
1504 nParm++;
1505 break;
1506 case MONO_TYPE_R8:
1507 cinfo->args[nParm].size = sizeof(double);
1508 add_float (&fr, sz, cinfo->args+nParm);
1509 nParm++;
1510 break;
1511 case MONO_TYPE_GENERICINST:
1512 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1513 cinfo->args[nParm].size = sizeof(gpointer);
1514 add_general (&gr, sz, cinfo->args+nParm);
1515 nParm++;
1516 break;
1517 }
1518 /* Fall through */
1519 case MONO_TYPE_VALUETYPE: {
1520 MonoMarshalType *info;
1521 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1522 if (sig->pinvoke)
1523 size = mono_class_native_size (klass, &align);
1524 else
1525 size = mono_class_value_size (klass, &align);
1526
1527 info = mono_marshal_load_type_info (klass);
1528
1529 if ((info->native_size == sizeof(float)) &&
1530 (info->num_fields == 1) &&
1531 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1532 cinfo->args[nParm].size = sizeof(float);
1533 add_float(&fr, sz, cinfo->args+nParm);
1534 break;
1535 }
1536
1537 if ((info->native_size == sizeof(double)) &&
1538 (info->num_fields == 1) &&
1539 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1540 cinfo->args[nParm].size = sizeof(double);
1541 add_float(&fr, sz, cinfo->args+nParm);
1542 break;
1543 }
1544
1545 cinfo->args[nParm].vtsize = 0;
1546 cinfo->args[nParm].size = 0;
1547
1548 switch (size) {
1549 /*----------------------------------*/
1550 /* On S/390, structures of size 1, */
1551 /* 2, 4, and 8 bytes are passed in */
1552 /* (a) register(s). */
1553 /*----------------------------------*/
1554 case 0:
1555 case 1:
1556 case 2:
1557 case 4:
1558 case 8:
1559 add_general(&gr, sz, cinfo->args+nParm);
1560 cinfo->args[nParm].size = size;
1561 cinfo->args[nParm].regtype = RegTypeStructByVal;
1562 nParm++;
1563 sz->local_size += sizeof(long);
1564 break;
1565 default:
1566 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1567 nParm++;
1568 }
1569 }
1570 break;
1571 case MONO_TYPE_TYPEDBYREF: {
1572 int size = sizeof (MonoTypedRef);
1573
1574 cinfo->args[nParm].vtsize = 0;
1575 cinfo->args[nParm].size = 0;
1576
1577 switch (size) {
1578 /*----------------------------------*/
1579 /* On S/390, structures of size 1, */
1580 /* 2, 4, and 8 bytes are passed in */
1581 /* (a) register(s). */
1582 /*----------------------------------*/
1583 case 0:
1584 case 1:
1585 case 2:
1586 case 4:
1587 case 8:
1588 add_general(&gr, sz, cinfo->args+nParm);
1589 cinfo->args[nParm].size = size;
1590 cinfo->args[nParm].regtype = RegTypeStructByVal;
1591 nParm++;
1592 sz->local_size += sizeof(long);
1593 break;
1594 default:
1595 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1596 nParm++;
1597 }
1598 }
1599 break;
1600 default:
1601 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1602 }
1603 }
1604
1605 /*----------------------------------------------------------*/
1606 /* Handle the case where there are no implicit arguments */
1607 /*----------------------------------------------------------*/
1608 if ((sig->call_convention == MONO_CALL_VARARG) &&
1609 (sig->param_count == sig->sentinelpos)) {
1610 gr = S390_LAST_ARG_REG + 1;
1611 add_general (&gr, sz, &cinfo->sigCookie);
1612 }
1613
1614 /*----------------------------------------------------------*/
1615 /* If we are passing a structure back then if it won't be */
1616 /* in a register(s) then we make room at the end of the */
1617 /* parameters that may have been placed on the stack */
1618 /*----------------------------------------------------------*/
1619 if (cinfo->struct_ret) {
1620 cinfo->ret.offset = sz->stack_size;
1621 switch (cinfo->ret.size) {
1622 case 0:
1623 case 1:
1624 case 2:
1625 case 4:
1626 case 8:
1627 break;
1628 default:
1629 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1630 }
1631 }
1632
1633 cinfo->lastgr = gr;
1634 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1635 sz->offset;
1636 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1637
1638 return (cinfo);
1639 }
1640
1641 /*========================= End of Function ========================*/
1642
1643 /*------------------------------------------------------------------*/
1644 /* */
1645 /* Name - mono_arch_allocate_vars */
1646 /* */
1647 /* Function - Set var information according to the calling */
1648 /* convention for S/390. The local var stuff should */
1649 /* most likely be split in another method. */
1650 /* */
1651 /* Parameter - @m - Compile unit. */
1652 /* */
1653 /*------------------------------------------------------------------*/
1654
1655 void
1656 mono_arch_allocate_vars (MonoCompile *cfg)
1657 {
1658 MonoMethodSignature *sig;
1659 MonoMethodHeader *header;
1660 MonoInst *inst;
1661 CallInfo *cinfo;
1662 size_data sz;
1663 int iParm, iVar, offset, size, align, curinst;
1664 int frame_reg = STK_BASE;
1665 int sArg, eArg;
1666
1667 header = mono_method_get_header (cfg->method);
1668
1669 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1670
1671 /*---------------------------------------------------------*/
1672 /* We use the frame register also for any method that has */
1673 /* filter clauses. This way, when the handlers are called, */
1674 /* the code will reference local variables using the frame */
1675 /* reg instead of the stack pointer: if we had to restore */
1676 /* the stack pointer, we'd corrupt the method frames that */
1677 /* are already on the stack (since filters get called */
1678 /* before stack unwinding happens) when the filter code */
1679 /* would call any method. */
1680 /*---------------------------------------------------------*/
1681 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1682 frame_reg = s390_r11;
1683
1684 cfg->frame_reg = frame_reg;
1685
1686 if (frame_reg != STK_BASE)
1687 cfg->used_int_regs |= 1 << frame_reg;
1688
1689 sig = mono_method_signature (cfg->method);
1690
1691 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1692
1693 if (cinfo->struct_ret) {
1694 cfg->ret->opcode = OP_REGVAR;
1695 cfg->ret->inst_c0 = s390_r2;
1696 } else {
1697 switch (mono_type_get_underlying_type (sig->ret)->type) {
1698 case MONO_TYPE_VOID:
1699 break;
1700 default:
1701 cfg->ret->opcode = OP_REGVAR;
1702 cfg->ret->dreg = s390_r2;
1703 break;
1704 }
1705 }
1706
1707 /*--------------------------------------------------------------*/
1708 /* local vars are at a positive offset from the stack pointer */
1709 /* also note that if the function uses alloca, we use s390_r11 */
1710 /* to point at the local variables. */
1711 /* add parameter area size for called functions */
1712 /*--------------------------------------------------------------*/
1713 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1714 cfg->sig_cookie = 0;
1715
1716 if (cinfo->struct_ret) {
1717 inst = cfg->ret;
1718 offset = S390_ALIGN(offset, sizeof(gpointer));
1719 inst->inst_offset = offset;
1720 inst->opcode = OP_REGOFFSET;
1721 inst->inst_basereg = frame_reg;
1722 offset += sizeof(gpointer);
1723 if ((sig->call_convention == MONO_CALL_VARARG) &&
1724 (!retFitsInReg (cinfo->ret.size)))
1725 cfg->sig_cookie += cinfo->ret.size;
1726 }
1727
1728 if (sig->hasthis) {
1729 inst = cfg->varinfo [0];
1730 if (inst->opcode != OP_REGVAR) {
1731 inst->opcode = OP_REGOFFSET;
1732 inst->inst_basereg = frame_reg;
1733 offset = S390_ALIGN(offset, sizeof(gpointer));
1734 inst->inst_offset = offset;
1735 offset += sizeof (gpointer);
1736 }
1737 curinst = sArg = 1;
1738 } else {
1739 curinst = sArg = 0;
1740 }
1741
1742 eArg = sig->param_count + sArg;
1743
1744 if (sig->call_convention == MONO_CALL_VARARG)
1745 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1746
1747 for (iParm = sArg; iParm < eArg; ++iParm) {
1748 inst = cfg->varinfo [curinst];
1749 if (inst->opcode != OP_REGVAR) {
1750 switch (cinfo->args[iParm].regtype) {
1751 case RegTypeStructByAddr :
1752 if (cinfo->args[iParm].reg == STK_BASE) {
1753 inst->opcode = OP_S390_LOADARG;
1754 inst->inst_basereg = frame_reg;
1755 offset = S390_ALIGN(offset, sizeof(long));
1756 inst->inst_offset = offset;
1757 size = abs(cinfo->args[iParm].vtsize);
1758 inst->backend.arg_info = cinfo->args[iParm].offset;
1759 } else {
1760 inst->opcode = OP_S390_ARGREG;
1761 inst->inst_basereg = frame_reg;
1762 size = sizeof(gpointer);
1763 offset = S390_ALIGN(offset, size);
1764 inst->inst_offset = offset;
1765 inst->backend.arg_info = cinfo->args[iParm].offset;
1766 }
1767 break;
1768 case RegTypeStructByVal :
1769 inst->opcode = OP_S390_ARGPTR;
1770 inst->inst_basereg = frame_reg;
1771 size = cinfo->args[iParm].size;
1772 offset = S390_ALIGN(offset, size);
1773 inst->inst_offset = offset;
1774 inst->backend.arg_info = cinfo->args[iParm].offset;
1775 break;
1776 default :
1777 if (cinfo->args[iParm].reg != STK_BASE) {
1778 inst->opcode = OP_REGOFFSET;
1779 inst->inst_basereg = frame_reg;
1780 size = (cinfo->args[iParm].size < 8
1781 ? sizeof(int)
1782 : sizeof(long));
1783 offset = S390_ALIGN(offset, size);
1784 inst->inst_offset = offset;
1785 } else {
1786 inst->opcode = OP_S390_STKARG;
1787 inst->inst_basereg = frame_reg;
1788 size = ((cinfo->args[iParm].size < 8)
1789 ? 8 - cinfo->args[iParm].size
1790 : 0);
1791 inst->inst_offset = cinfo->args[iParm].offset +
1792 size;
1793 inst->backend.arg_info = 0;
1794 size = sizeof(long);
1795 }
1796 }
1797 if ((sig->call_convention == MONO_CALL_VARARG) &&
1798 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1799 (iParm < sig->sentinelpos))
1800 cfg->sig_cookie += size;
1801
1802 offset += size;
1803 }
1804 curinst++;
1805 }
1806
1807 curinst = cfg->locals_start;
1808 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1809 inst = cfg->varinfo [iVar];
1810 if ((inst->flags & MONO_INST_IS_DEAD) ||
1811 (inst->opcode == OP_REGVAR))
1812 continue;
1813
1814 /*--------------------------------------------------*/
1815 /* inst->backend.is_pinvoke indicates native sized value types, */
1816 /* this is used by the pinvoke wrappers when they */
1817 /* call functions returning structure */
1818 /*--------------------------------------------------*/
1819 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1820 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1821 else
1822 size = mono_type_size (inst->inst_vtype, &align);
1823
1824 offset = S390_ALIGN(offset, align);
1825 inst->inst_offset = offset;
1826 inst->opcode = OP_REGOFFSET;
1827 inst->inst_basereg = frame_reg;
1828 offset += size;
1829 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
1830 iVar, inst->inst_offset, size));
1831 }
1832
1833 /*------------------------------------------------------*/
1834 /* Allow space for the trace method stack area if needed*/
1835 /*------------------------------------------------------*/
1836 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
1837 offset += S390_TRACE_STACK_SIZE;
1838
1839 /*------------------------------------------------------*/
1840 /* Reserve space to save LMF and caller saved registers */
1841 /*------------------------------------------------------*/
1842 if (cfg->method->save_lmf)
1843 offset += sizeof (MonoLMF);
1844
1845 /*------------------------------------------------------*/
1846 /* align the offset */
1847 /*------------------------------------------------------*/
1848 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1849
1850 }
1851
1852 /*========================= End of Function ========================*/
1853
1854 /*------------------------------------------------------------------*/
1855 /* */
1856 /* Name - mono_arch_call_opcode */
1857 /* */
1858 /* Function - Take the arguments and generate the arch-specific */
1859 /* instructions to properly call the function. This */
1860 /* includes pushing, moving argments to the correct */
1861 /* etc. */
1862 /* */
1863 /*------------------------------------------------------------------*/
1864
1865 MonoCallInst*
1866 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1867 MonoCallInst *call, int is_virtual) {
1868 MonoInst *in;
1869 MonoCallArgParm *arg;
1870 MonoMethodSignature *sig;
1871 int i, n, lParamArea;
1872 CallInfo *cinfo;
1873 ArgInfo *ainfo;
1874 size_data sz;
1875
1876 sig = call->signature;
1877 n = sig->param_count + sig->hasthis;
1878 DEBUG (g_print ("Call requires: %d parameters\n",n));
1879
1880 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1881
1882 call->stack_usage = MAX(sz.stack_size, call->stack_usage);
1883 lParamArea = MAX((call->stack_usage - S390_MINIMAL_STACK_SIZE - sz.parm_size), 0);
1884 cfg->param_area = MAX (((signed) cfg->param_area), lParamArea);
1885 cfg->flags |= MONO_CFG_HAS_CALLS;
1886
1887 if (cinfo->struct_ret)
1888 call->used_iregs |= 1 << cinfo->ret.reg;
1889
1890 for (i = 0; i < n; ++i) {
1891 ainfo = cinfo->args + i;
1892
1893 if (!(sig->pinvoke) &&
1894 (sig->call_convention == MONO_CALL_VARARG) &&
1895 (i == sig->sentinelpos)) {
1896 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
1897 }
1898
1899 if (is_virtual && i == 0) {
1900 /* the argument will be attached to the call instrucion */
1901 in = call->args [i];
1902 call->used_iregs |= 1 << ainfo->reg;
1903 } else {
1904 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG);
1905 in = call->args [i];
1906 arg->ins.cil_code = in->cil_code;
1907 arg->ins.inst_left = in;
1908 arg->ins.type = in->type;
1909
1910 /* prepend, we'll need to reverse them later */
1911 arg->ins.next = call->out_args;
1912 call->out_args = (MonoInst *) arg;
1913 arg->ins.inst_right = (MonoInst *) call;
1914 if (ainfo->regtype == RegTypeGeneral) {
1915 arg->ins.backend.reg3 = ainfo->reg;
1916 call->used_iregs |= 1 << ainfo->reg;
1917 } else if (ainfo->regtype == RegTypeStructByAddr) {
1918 call->used_iregs |= 1 << ainfo->reg;
1919 arg->ins.sreg1 = ainfo->reg;
1920 arg->ins.opcode = OP_OUTARG_VT;
1921 arg->size = -ainfo->vtsize;
1922 arg->offset = ainfo->offset;
1923 arg->offPrm = ainfo->offparm + sz.offStruct;
1924 } else if (ainfo->regtype == RegTypeStructByVal) {
1925 if (ainfo->reg != STK_BASE)
1926 call->used_iregs |= 1 << ainfo->reg;
1927 arg->ins.sreg1 = ainfo->reg;
1928 arg->ins.opcode = OP_OUTARG_VT;
1929 arg->size = ainfo->size;
1930 arg->offset = ainfo->offset;
1931 arg->offPrm = ainfo->offparm + sz.offStruct;
1932 } else if (ainfo->regtype == RegTypeBase) {
1933 arg->ins.opcode = OP_OUTARG_MEMBASE;
1934 arg->ins.sreg1 = ainfo->reg;
1935 arg->size = ainfo->size;
1936 arg->offset = ainfo->offset;
1937 call->used_iregs |= 1 << ainfo->reg;
1938 } else if (ainfo->regtype == RegTypeFP) {
1939 arg->ins.backend.reg3 = ainfo->reg;
1940 call->used_fregs |= 1 << ainfo->reg;
1941 if (ainfo->size == 4)
1942 arg->ins.opcode = OP_OUTARG_R4;
1943 else
1944 arg->ins.opcode = OP_OUTARG_R8;
1945 } else {
1946 g_assert_not_reached ();
1947 }
1948 }
1949 }
1950
1951 /*
1952 * Handle the case where there are no implicit arguments
1953 */
1954 if (!(sig->pinvoke) &&
1955 (sig->call_convention == MONO_CALL_VARARG) &&
1956 (n == sig->sentinelpos)) {
1957 emit_sig_cookie (cfg, call, cinfo, sizeof(MonoType *));
1958 }
1959
1960 /*
1961 * Reverse the call->out_args list.
1962 */
1963 {
1964 MonoInst *prev = NULL, *list = call->out_args, *next;
1965 while (list) {
1966 next = list->next;
1967 list->next = prev;
1968 prev = list;
1969 list = next;
1970 }
1971 call->out_args = prev;
1972 }
1973
1974 g_free (cinfo);
1975 return call;
1976 }
1977
1978 /*========================= End of Function ========================*/
1979
1980 /*------------------------------------------------------------------*/
1981 /* */
1982 /* Name - emit_sig_cookie. */
1983 /* */
1984 /* Function - For variable length parameter lists construct a */
1985 /* signature cookie and emit it. */
1986 /* */
1987 /*------------------------------------------------------------------*/
1988
1989 static void
1990 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call,
1991 CallInfo *cinfo, int argSize)
1992 {
1993 MonoCallArgParm *arg;
1994 MonoMethodSignature *tmpSig;
1995 MonoInst *sigArg;
1996
1997 cfg->disable_aot = TRUE;
1998
1999 /*----------------------------------------------------------*/
2000 /* mono_ArgIterator_Setup assumes the signature cookie is */
2001 /* passed first and all the arguments which were before it */
2002 /* passed on the stack after the signature. So compensate */
2003 /* by passing a different signature. */
2004 /*----------------------------------------------------------*/
2005 tmpSig = mono_metadata_signature_dup (call->signature);
2006 tmpSig->param_count -= call->signature->sentinelpos;
2007 tmpSig->sentinelpos = 0;
2008 if (tmpSig->param_count > 0)
2009 memcpy (tmpSig->params,
2010 call->signature->params + call->signature->sentinelpos,
2011 tmpSig->param_count * sizeof(MonoType *));
2012
2013 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
2014 sigArg->inst_p0 = tmpSig;
2015
2016 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG_MEMBASE);
2017 arg->ins.inst_left = sigArg;
2018 arg->ins.inst_right = (MonoInst *) call;
2019 arg->size = argSize;
2020 arg->offset = cinfo->sigCookie.offset;
2021
2022 /* prepend, we'll need to reverse them later */
2023 arg->ins.next = call->out_args;
2024 call->out_args = (MonoInst *) arg;
2025 }
2026
2027 /*========================= End of Function ========================*/
2028
2029 /*------------------------------------------------------------------*/
2030 /* */
2031 /* Name - mono_arch_instrument_mem_needs */
2032 /* */
2033 /* Function - Allow tracing to work with this interface (with */
2034 /* an optional argument). */
2035 /* */
2036 /*------------------------------------------------------------------*/
2037
2038 void
2039 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2040 {
2041 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2042 *stack = 0;
2043 /* split prolog-epilog requirements? */
2044 *code = 50; /* max bytes needed: check this number */
2045 }
2046
2047 /*========================= End of Function ========================*/
2048
2049 /*------------------------------------------------------------------*/
2050 /* */
2051 /* Name - mono_arch_instrument_prolog */
2052 /* */
2053 /* Function - Create an "instrumented" prolog. */
2054 /* */
2055 /*------------------------------------------------------------------*/
2056
2057 void*
2058 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2059 gboolean enable_arguments)
2060 {
2061 guchar *code = p;
2062 int parmOffset,
2063 fpOffset,
2064 baseReg;
2065
2066 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2067 if (cfg->method->save_lmf)
2068 parmOffset -= sizeof(MonoLMF);
2069 fpOffset = parmOffset + (5*sizeof(gpointer));
2070 if ((!has_ld) && (fpOffset > 4096)) {
2071 s390_lgr (code, s390_r12, STK_BASE);
2072 baseReg = s390_r12;
2073 while (fpOffset > 4096) {
2074 s390_aghi (code, baseReg, 4096);
2075 fpOffset -= 4096;
2076 parmOffset -= 4096;
2077 }
2078 } else {
2079 baseReg = STK_BASE;
2080 }
2081
2082 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2083 if (has_ld) {
2084 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2085 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2086 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2087 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2088 } else {
2089 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2090 s390_std (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2091 s390_std (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2092 s390_std (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2093 }
2094 s390_basr (code, s390_r13, 0);
2095 s390_j (code, 10);
2096 s390_llong(code, cfg->method);
2097 s390_llong(code, func);
2098 s390_lg (code, s390_r2, 0, s390_r13, 4);
2099 if (has_ld)
2100 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2101 else
2102 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2103 s390_lgr (code, s390_r4, STK_BASE);
2104 s390_aghi (code, s390_r4, cfg->stack_usage);
2105 s390_lg (code, s390_r1, 0, s390_r13, 12);
2106 s390_basr (code, s390_r14, s390_r1);
2107 if (has_ld) {
2108 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2109 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2110 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2111 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2112 } else {
2113 s390_ld (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2114 s390_ld (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2115 s390_ld (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2116 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2117 }
2118 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2119
2120 return code;
2121 }
2122
2123 /*========================= End of Function ========================*/
2124
2125 /*------------------------------------------------------------------*/
2126 /* */
2127 /* Name - mono_arch_instrument_epilog */
2128 /* */
2129 /* Function - Create an epilog that will handle the returned */
2130 /* values used in instrumentation. */
2131 /* */
2132 /*------------------------------------------------------------------*/
2133
2134 void*
2135 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2136 {
2137 guchar *code = p;
2138 int save_mode = SAVE_NONE,
2139 saveOffset;
2140 MonoMethod *method = cfg->method;
2141 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2142
2143 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2144 if (method->save_lmf)
2145 saveOffset -= sizeof(MonoLMF);
2146
2147 handle_enum:
2148 switch (rtype) {
2149 case MONO_TYPE_VOID:
2150 /* special case string .ctor icall */
2151 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2152 save_mode = SAVE_ONE;
2153 else
2154 save_mode = SAVE_NONE;
2155 break;
2156 case MONO_TYPE_I8:
2157 case MONO_TYPE_U8:
2158 save_mode = SAVE_ONE;
2159 break;
2160 case MONO_TYPE_R4:
2161 save_mode = SAVE_R4;
2162 break;
2163 case MONO_TYPE_R8:
2164 save_mode = SAVE_R8;
2165 break;
2166 case MONO_TYPE_VALUETYPE:
2167 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2168 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
2169 goto handle_enum;
2170 }
2171 save_mode = SAVE_STRUCT;
2172 break;
2173 default:
2174 save_mode = SAVE_ONE;
2175 break;
2176 }
2177
2178 switch (save_mode) {
2179 case SAVE_ONE:
2180 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2181 if (enable_arguments) {
2182 s390_lgr (code, s390_r3, s390_r2);
2183 }
2184 break;
2185 case SAVE_R4:
2186 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2187 if (enable_arguments) {
2188 s390_ldebr (code, s390_f0, s390_f0);
2189 }
2190 break;
2191 case SAVE_R8:
2192 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2193 break;
2194 case SAVE_STRUCT:
2195 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2196 if (enable_arguments) {
2197 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2198 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2199 }
2200 break;
2201 case SAVE_NONE:
2202 default:
2203 break;
2204 }
2205
2206 s390_basr (code, s390_r13, 0);
2207 s390_j (code, 10);
2208 s390_llong(code, cfg->method);
2209 s390_llong(code, func);
2210 s390_lg (code, s390_r2, 0, s390_r13, 4);
2211 s390_lg (code, s390_r1, 0, s390_r13, 12);
2212 s390_basr (code, s390_r14, s390_r1);
2213
2214 switch (save_mode) {
2215 case SAVE_ONE:
2216 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2217 break;
2218 case SAVE_R4:
2219 case SAVE_R8:
2220 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2221 break;
2222 case SAVE_STRUCT:
2223 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2224 break;
2225 case SAVE_NONE:
2226 default:
2227 break;
2228 }
2229
2230 return code;
2231 }
2232
2233 /*========================= End of Function ========================*/
2234
2235 /*------------------------------------------------------------------*/
2236 /* */
2237 /* Name - peephole_pass */
2238 /* */
2239 /* Function - Form a peephole pass at the code looking for */
2240 /* simple optimizations. */
2241 /* */
2242 /*------------------------------------------------------------------*/
2243
2244 static void
2245 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2246 {
2247 MonoInst *ins, *last_ins = NULL;
2248 ins = bb->code;
2249
2250 while (ins) {
2251
2252 switch (ins->opcode) {
2253 case OP_MUL_IMM:
2254 /* remove unnecessary multiplication with 1 */
2255 if (ins->inst_imm == 1) {
2256 if (ins->dreg != ins->sreg1) {
2257 ins->opcode = OP_MOVE;
2258 } else {
2259 last_ins->next = ins->next;
2260 ins = ins->next;
2261 continue;
2262 }
2263 }
2264 break;
2265 case OP_LOAD_MEMBASE:
2266 case OP_LOADI4_MEMBASE:
2267 /*
2268 * OP_STORE_MEMBASE_REG reg, offset(basereg)
2269 * OP_LOAD_MEMBASE offset(basereg), reg
2270 */
2271 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
2272 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
2273 ins->inst_basereg == last_ins->inst_destbasereg &&
2274 ins->inst_offset == last_ins->inst_offset) {
2275 if (ins->dreg == last_ins->sreg1) {
2276 last_ins->next = ins->next;
2277 ins = ins->next;
2278 continue;
2279 } else {
2280 ins->opcode = OP_MOVE;
2281 ins->sreg1 = last_ins->sreg1;
2282 }
2283
2284 /*
2285 * Note: reg1 must be different from the basereg in the second load
2286 * OP_LOAD_MEMBASE offset(basereg), reg1
2287 * OP_LOAD_MEMBASE offset(basereg), reg2
2288 * -->
2289 * OP_LOAD_MEMBASE offset(basereg), reg1
2290 * OP_MOVE reg1, reg2
2291 */
2292 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
2293 || last_ins->opcode == OP_LOAD_MEMBASE) &&
2294 ins->inst_basereg != last_ins->dreg &&
2295 ins->inst_basereg == last_ins->inst_basereg &&
2296 ins->inst_offset == last_ins->inst_offset) {
2297
2298 if (ins->dreg == last_ins->dreg) {
2299 last_ins->next = ins->next;
2300 ins = ins->next;
2301 continue;
2302 } else {
2303 ins->opcode = OP_MOVE;
2304 ins->sreg1 = last_ins->dreg;
2305 }
2306
2307 }
2308 break;
2309 case OP_LOADU1_MEMBASE:
2310 case OP_LOADI1_MEMBASE:
2311 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
2312 ins->inst_basereg == last_ins->inst_destbasereg &&
2313 ins->inst_offset == last_ins->inst_offset) {
2314 if (ins->dreg == last_ins->sreg1) {
2315 last_ins->next = ins->next;
2316 ins = ins->next;
2317 continue;
2318 } else {
2319 ins->opcode = OP_MOVE;
2320 ins->sreg1 = last_ins->sreg1;
2321 }
2322 }
2323 break;
2324 case OP_LOADU2_MEMBASE:
2325 case OP_LOADI2_MEMBASE:
2326 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
2327 ins->inst_basereg == last_ins->inst_destbasereg &&
2328 ins->inst_offset == last_ins->inst_offset) {
2329 if (ins->dreg == last_ins->sreg1) {
2330 last_ins->next = ins->next;
2331 ins = ins->next;
2332 continue;
2333 } else {
2334 ins->opcode = OP_MOVE;
2335 ins->sreg1 = last_ins->sreg1;
2336 }
2337 }
2338 break;
2339 case CEE_CONV_I4:
2340 case CEE_CONV_U4:
2341 case OP_MOVE:
2342 /*
2343 * OP_MOVE reg, reg
2344 */
2345 if (ins->dreg == ins->sreg1) {
2346 if (last_ins)
2347 last_ins->next = ins->next;
2348 ins = ins->next;
2349 continue;
2350 }
2351 /*
2352 * OP_MOVE sreg, dreg
2353 * OP_MOVE dreg, sreg
2354 */
2355 if (last_ins && last_ins->opcode == OP_MOVE &&
2356 ins->sreg1 == last_ins->dreg &&
2357 ins->dreg == last_ins->sreg1) {
2358 last_ins->next = ins->next;
2359 ins = ins->next;
2360 continue;
2361 }
2362 break;
2363 }
2364 last_ins = ins;
2365 ins = ins->next;
2366 }
2367 bb->last_ins = last_ins;
2368 }
2369
2370 /*========================= End of Function ========================*/
2371
2372 /*------------------------------------------------------------------*/
2373 /* */
2374 /* Name - mono_arch_local_regalloc. */
2375 /* */
2376 /* Function - We first scan the list of instructions and we */
2377 /* save the liveness information of each register */
2378 /* (when the register is first used, when its value */
2379 /* is set etc.). We also reverse the list of instr- */
2380 /* uctions (in the InstList list) because assigning */
2381 /* registers backwards allows for more tricks to be */
2382 /* used. */
2383 /* */
2384 /*------------------------------------------------------------------*/
2385
2386 void
2387 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2388 {
2389 mono_local_regalloc(cfg, bb);
2390 }
2391
2392 /*========================= End of Function ========================*/
2393
2394 /*------------------------------------------------------------------*/
2395 /* */
2396 /* Name - emit_float_to_int */
2397 /* */
2398 /* Function - Create instructions which will convert a floating */
2399 /* point value to integer. */
2400 /* */
2401 /*------------------------------------------------------------------*/
2402
2403 static guchar*
2404 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2405 {
2406 /* sreg is a float, dreg is an integer reg. */
2407 if (is_signed) {
2408 s390_cfdbr (code, dreg, 5, sreg);
2409 switch (size) {
2410 case 1:
2411 s390_lghi (code, s390_r0, 0);
2412 s390_lghi (code, s390_r13, 0xff);
2413 s390_ltgr (code, dreg, dreg);
2414 s390_jnl (code, 4);
2415 s390_lghi (code, s390_r0, 0x80);
2416 s390_ngr (code, dreg, s390_r13);
2417 s390_ogr (code, dreg, s390_r0);
2418 break;
2419 }
2420 } else {
2421 short *o[1];
2422 s390_basr (code, s390_r13, 0);
2423 s390_j (code, 10);
2424 s390_llong (code, 0x41e0000000000000);
2425 s390_llong (code, 0x41f0000000000000);
2426 s390_ldr (code, s390_f15, sreg);
2427 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2428 s390_jl (code, 0); CODEPTR (code, o[0]);
2429 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2430 s390_cfdbr (code, dreg, 7, s390_f15);
2431 s390_j (code, 4);
2432 PTRSLOT (code, o[0]);
2433 s390_cfdbr (code, dreg, 5, sreg);
2434 switch (size) {
2435 case 1:
2436 s390_lghi (code, s390_r0, 0xff);
2437 s390_ngr (code, dreg, s390_r0);
2438 break;
2439 case 2:
2440 s390_lghi (code, s390_r0, -1);
2441 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2442 s390_ngr (code, dreg, s390_r0);
2443 break;
2444 }
2445 }
2446 return code;
2447 }
2448
2449 /*========================= End of Function ========================*/
2450
2451 /*------------------------------------------------------------------*/
2452 /* */
2453 /* Name - mono_arch_output_basic_block */
2454 /* */
2455 /* Function - Perform the "real" work of emitting instructions */
2456 /* that will do the work of in the basic block. */
2457 /* */
2458 /*------------------------------------------------------------------*/
2459
2460 void
2461 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2462 {
2463 MonoInst *ins;
2464 MonoCallInst *call;
2465 guint offset;
2466 guint8 *code = cfg->native_code + cfg->code_len;
2467 MonoInst *last_ins = NULL;
2468 guint last_offset = 0;
2469 int max_len, cpos, src2;
2470
2471 if (cfg->opt & MONO_OPT_PEEPHOLE)
2472 peephole_pass (cfg, bb);
2473
2474 /* we don't align basic blocks of loops on s390 */
2475
2476 if (cfg->verbose_level > 2)
2477 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2478
2479 cpos = bb->max_offset;
2480
2481 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2482 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2483 //g_assert (!mono_compile_aot);
2484 //cpos += 6;
2485 //if (bb->cil_code)
2486 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2487 /* this is not thread save, but good enough */
2488 /* fixme: howto handle overflows? */
2489 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2490 }
2491
2492 ins = bb->code;
2493 while (ins) {
2494 offset = code - cfg->native_code;
2495
2496 max_len = ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
2497
2498 if (offset > (cfg->code_size - max_len - 16)) {
2499 cfg->code_size *= 2;
2500 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2501 code = cfg->native_code + offset;
2502 }
2503
2504 mono_debug_record_line_number (cfg, ins, offset);
2505
2506 switch (ins->opcode) {
2507 case OP_STOREI1_MEMBASE_IMM: {
2508 s390_lghi (code, s390_r0, ins->inst_imm);
2509 S390_LONG (code, stcy, stc, s390_r0, 0,
2510 ins->inst_destbasereg, ins->inst_offset);
2511 }
2512 break;
2513 case OP_STOREI2_MEMBASE_IMM: {
2514 s390_lghi (code, s390_r0, ins->inst_imm);
2515 S390_LONG (code, sthy, sth, s390_r0, 0,
2516 ins->inst_destbasereg, ins->inst_offset);
2517 }
2518 break;
2519 case OP_STOREI4_MEMBASE_IMM: {
2520 if (s390_is_imm16(ins->inst_imm)) {
2521 s390_lghi (code, s390_r0, ins->inst_imm);
2522 } else {
2523 s390_basr (code, s390_r13, 0);
2524 s390_j (code, 6);
2525 s390_llong(code, ins->inst_imm);
2526 s390_lg (code, s390_r0, 0, s390_r13, 4);
2527 }
2528 S390_LONG (code, sty, st, s390_r0, 0,
2529 ins->inst_destbasereg, ins->inst_offset);
2530 }
2531 break;
2532 case OP_STORE_MEMBASE_IMM:
2533 case OP_STOREI8_MEMBASE_IMM: {
2534 if (s390_is_imm16(ins->inst_imm)) {
2535 s390_lghi (code, s390_r0, ins->inst_imm);
2536 } else {
2537 s390_basr (code, s390_r13, 0);
2538 s390_j (code, 6);
2539 s390_llong(code, ins->inst_imm);
2540 s390_lg (code, s390_r0, 0, s390_r13, 4);
2541 }
2542 S390_LONG (code, stg, stg, s390_r0, 0,
2543 ins->inst_destbasereg, ins->inst_offset);
2544 }
2545 break;
2546 case OP_STOREI1_MEMBASE_REG: {
2547 S390_LONG (code, stcy, stc, ins->sreg1, 0,
2548 ins->inst_destbasereg, ins->inst_offset);
2549 }
2550 break;
2551 case OP_STOREI2_MEMBASE_REG: {
2552 S390_LONG (code, sthy, sth, ins->sreg1, 0,
2553 ins->inst_destbasereg, ins->inst_offset);
2554 }
2555 break;
2556 case OP_STOREI4_MEMBASE_REG: {
2557 S390_LONG (code, sty, st, ins->sreg1, 0,
2558 ins->inst_destbasereg, ins->inst_offset);
2559 }
2560 break;
2561 case OP_STORE_MEMBASE_REG:
2562 case OP_STOREI8_MEMBASE_REG: {
2563 S390_LONG (code, stg, stg, ins->sreg1, 0,
2564 ins->inst_destbasereg, ins->inst_offset);
2565 }
2566 break;
2567 case CEE_LDIND_I:
2568 case CEE_LDIND_I4: {
2569 s390_basr (code, s390_r13, 0);
2570 s390_j (code, 6);
2571 s390_llong(code, ins->inst_p0);
2572 s390_lg (code, s390_r13, 0, s390_r13, 4);
2573 s390_lgf (code, ins->dreg, 0, s390_r13, 0);
2574 }
2575 break;
2576 case CEE_LDIND_U4: {
2577 s390_basr (code, s390_r13, 0);
2578 s390_j (code, 6);
2579 s390_llong(code, ins->inst_p0);
2580 s390_lg (code, s390_r13, 0, s390_r13, 4);
2581 s390_llgf (code, ins->dreg, 0, s390_r13, 0);
2582 }
2583 break;
2584 case OP_LOADU4_MEM:
2585 g_assert_not_reached ();
2586 break;
2587 case OP_LOAD_MEMBASE:
2588 case OP_LOADI8_MEMBASE: {
2589 S390_LONG (code, lg, lg, ins->dreg, 0,
2590 ins->inst_basereg, ins->inst_offset);
2591 }
2592 break;
2593 case OP_LOADI4_MEMBASE: {
2594 S390_LONG (code, lgf, lgf, ins->dreg, 0,
2595 ins->inst_basereg, ins->inst_offset);
2596 }
2597 break;
2598 case OP_LOADU4_MEMBASE: {
2599 S390_LONG (code, llgf, llgf, ins->dreg, 0,
2600 ins->inst_basereg, ins->inst_offset);
2601 }
2602 break;
2603 case OP_LOADU1_MEMBASE: {
2604 S390_LONG (code, llgc, llgc, ins->dreg, 0,
2605 ins->inst_basereg, ins->inst_offset);
2606 }
2607 break;
2608 case OP_LOADI1_MEMBASE: {
2609 S390_LONG (code, lb, lb, ins->dreg, 0,
2610 ins->inst_basereg, ins->inst_offset);
2611 }
2612 break;
2613 case OP_LOADU2_MEMBASE: {
2614 S390_LONG (code, llgh, llgh, ins->dreg, 0,
2615 ins->inst_basereg, ins->inst_offset);
2616 }
2617 break;
2618 case OP_LOADI2_MEMBASE: {
2619 S390_LONG (code, lgh, lgh, ins->dreg, 0,
2620 ins->inst_basereg, ins->inst_offset);
2621 }
2622 break;
2623 case CEE_CONV_I1: {
2624 s390_lghi (code, s390_r0, 0x80);
2625 if (ins->dreg != ins->sreg1) {
2626 s390_lgr (code, ins->dreg, ins->sreg1);
2627 }
2628 s390_ngr (code, s390_r0, ins->sreg1);
2629 s390_jz (code, 9);
2630 s390_lghi (code, s390_r13, -1);
2631 s390_sllg (code, s390_r13, s390_r13, 0, 8);
2632 s390_ogr (code, ins->dreg, s390_r13);
2633 }
2634 break;
2635 case CEE_CONV_I2: {
2636 s390_lghi (code, s390_r0, 0x80);
2637 s390_sllg (code, s390_r0, s390_r0, 0, 8);
2638 if (ins->dreg != ins->sreg1) {
2639 s390_lgr (code, ins->dreg, ins->sreg1);
2640 }
2641 s390_ngr (code, s390_r0, ins->sreg1);
2642 s390_jz (code, 9);
2643 s390_lghi (code, s390_r13, -1);
2644 s390_sllg (code, s390_r13, s390_r13, 0, 16);
2645 s390_ogr (code, ins->dreg, s390_r13);
2646 }
2647 break;
2648 case CEE_CONV_U1: {
2649 s390_lghi (code, s390_r0, 0xff);
2650 if (ins->dreg != ins->sreg1) {
2651 s390_lgr (code, ins->dreg, ins->sreg1);
2652 }
2653 s390_ngr (code, ins->dreg, s390_r0);
2654 }
2655 break;
2656 case CEE_CONV_U2: {
2657 s390_lghi (code, s390_r0, -1);
2658 s390_sllg (code, s390_r0, s390_r0, 0, 16);
2659 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2660 if (ins->dreg != ins->sreg1) {
2661 s390_lgr (code, ins->dreg, ins->sreg1);
2662 }
2663 s390_ngr (code, ins->dreg, s390_r0);
2664 }
2665 break;
2666 case OP_COMPARE:
2667 case OP_LCOMPARE: {
2668 if ((ins->next) &&
2669 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2670 s390_clgr (code, ins->sreg1, ins->sreg2);
2671 else
2672 s390_cgr (code, ins->sreg1, ins->sreg2);
2673 }
2674 break;
2675 case OP_COMPARE_IMM: {
2676 if (s390_is_imm16 (ins->inst_imm)) {
2677 s390_lghi (code, s390_r0, ins->inst_imm);
2678 if ((ins->next) &&
2679 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2680 s390_clgr (code, ins->sreg1, s390_r0);
2681 else
2682 s390_cgr (code, ins->sreg1, s390_r0);
2683 }
2684 else {
2685 s390_basr (code, s390_r13, 0);
2686 s390_j (code, 6);
2687 s390_llong(code, ins->inst_imm);
2688 if ((ins->next) &&
2689 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2690 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
2691 else
2692 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
2693 }
2694 }
2695 break;
2696 case OP_ICOMPARE: {
2697 if ((ins->next) &&
2698 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2699 s390_clr (code, ins->sreg1, ins->sreg2);
2700 else
2701 s390_cr (code, ins->sreg1, ins->sreg2);
2702 }
2703 break;
2704 case OP_ICOMPARE_IMM: {
2705 if (s390_is_imm16 (ins->inst_imm)) {
2706 s390_lghi (code, s390_r0, ins->inst_imm);
2707 if ((ins->next) &&
2708 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2709 s390_clr (code, ins->sreg1, s390_r0);
2710 else
2711 s390_cr (code, ins->sreg1, s390_r0);
2712 }
2713 else {
2714 s390_basr (code, s390_r13, 0);
2715 s390_j (code, 4);
2716 s390_word (code, ins->inst_imm);
2717 if ((ins->next) &&
2718 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2719 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2720 else
2721 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2722 }
2723 }
2724 break;
2725 case CEE_BREAK: {
2726 s390_basr (code, s390_r13, 0);
2727 s390_j (code, 6);
2728 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
2729 mono_arch_break);
2730 s390_llong (code, mono_arch_break);
2731 s390_lg (code, s390_r14, 0, s390_r13, 4);
2732 s390_basr (code, s390_r14, s390_r14);
2733 }
2734 break;
2735 case OP_ADDCC: {
2736 CHECK_SRCDST_COM;
2737 s390_algr (code, ins->dreg, src2);
2738 }
2739 break;
2740 case CEE_ADD: {
2741 CHECK_SRCDST_COM;
2742 s390_agr (code, ins->dreg, src2);
2743 }
2744 break;
2745 case OP_ADC: {
2746 CHECK_SRCDST_COM;
2747 s390_alcgr (code, ins->dreg, src2);
2748 }
2749 break;
2750 case OP_ADD_IMM: {
2751 if (ins->dreg != ins->sreg1) {
2752 s390_lgr (code, ins->dreg, ins->sreg1);
2753 }
2754 if (s390_is_imm16 (ins->inst_imm)) {
2755 s390_aghi (code, ins->dreg, ins->inst_imm);
2756 } else {
2757 s390_basr (code, s390_r13, 0);
2758 s390_j (code, 6);
2759 s390_llong(code, ins->inst_imm);
2760 s390_ag (code, ins->dreg, 0, s390_r13, 4);
2761 }
2762 }
2763 break;
2764 // case OP_ADDCC_IMM: {
2765 // if ((ins->next) &&
2766 // (ins->next->opcode == OP_ADC_IMM)) {
2767 // s390_basr (code, s390_r13, 0);
2768 // s390_j (code, 6);
2769 // s390_llong(code, ins->inst_imm);
2770 // if (ins->dreg != ins->sreg1) {
2771 // s390_lgr (code, ins->dreg, ins->sreg1);
2772 // }
2773 // s390_alg (code, ins->dreg, 0, s390_r13, 4);
2774 // } else {
2775 // if (s390_is_imm16 (ins->inst_imm)) {
2776 // if (ins->dreg != ins->sreg1) {
2777 // s390_lgr (code, ins->dreg, ins->sreg1);
2778 // }
2779 // s390_aghi (code, ins->dreg, ins->inst_imm);
2780 // } else {
2781 // s390_basr (code, s390_r13, 0);
2782 // s390_j (code, 6);
2783 // s390_llong(code, ins->inst_imm);
2784 // if (ins->dreg != ins->sreg1) {
2785 // s390_lgr (code, ins->dreg, ins->sreg1);
2786 // }
2787 // s390_ag (code, ins->dreg, 0, s390_r13, 4);
2788 // }
2789 // }
2790 // }
2791 // break;
2792 case OP_ADC_IMM: {
2793 if (ins->dreg != ins->sreg1) {
2794 s390_lgr (code, ins->dreg, ins->sreg1);
2795 }
2796 if (s390_is_imm16 (ins->inst_imm)) {
2797 s390_lghi (code, s390_r0, ins->inst_imm);
2798 s390_alcgr (code, ins->dreg, s390_r0);
2799 } else {
2800 s390_basr (code, s390_r13, 0);
2801 s390_j (code, 6);
2802 s390_llong (code, ins->inst_imm);
2803 s390_lg (code, s390_r13, 0, s390_r13, 4);
2804 s390_alcgr (code, ins->dreg, s390_r13);
2805 }
2806 }
2807 break;
2808 case OP_LADD_OVF: {
2809 CHECK_SRCDST_COM;
2810 s390_agr (code, ins->dreg, src2);
2811 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2812 }
2813 break;
2814 case OP_LADD_OVF_UN: {
2815 CHECK_SRCDST_COM;
2816 s390_algr (code, ins->dreg, src2);
2817 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2818 }
2819 break;
2820 case OP_ADD_OVF_CARRY: {
2821 CHECK_SRCDST_COM;
2822 s390_lghi (code, s390_r0, 0);
2823 s390_lgr (code, s390_r1, s390_r0);
2824 s390_alcgr (code, s390_r0, s390_r1);
2825 s390_agr (code, ins->dreg, src2);
2826 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2827 s390_agr (code, ins->dreg, s390_r0);
2828 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2829 }
2830 break;
2831 case OP_ADD_OVF_UN_CARRY: {
2832 CHECK_SRCDST_COM;
2833 s390_alcgr (code, ins->dreg, src2);
2834 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2835 }
2836 break;
2837 case OP_SUBCC: {
2838 CHECK_SRCDST_NCOM;
2839 s390_slgr (code, ins->dreg, src2);
2840 }
2841 break;
2842 case CEE_SUB: {
2843 CHECK_SRCDST_NCOM;
2844 s390_sgr (code, ins->dreg, src2);
2845 }
2846 break;
2847 case OP_SBB: {
2848 CHECK_SRCDST_NCOM;
2849 s390_slbgr(code, ins->dreg, src2);
2850 }
2851 break;
2852 case OP_SUB_IMM: {
2853 if (ins->dreg != ins->sreg1) {
2854 s390_lgr (code, ins->dreg, ins->sreg1);
2855 }
2856 if (s390_is_imm16 (-ins->inst_imm)) {
2857 s390_lghi (code, s390_r0, ins->inst_imm);
2858 s390_slgr (code, ins->dreg, s390_r0);
2859 } else {
2860 s390_basr (code, s390_r13, 0);
2861 s390_j (code, 6);
2862 s390_llong(code, ins->inst_imm);
2863 s390_slg (code, ins->dreg, 0, s390_r13, 4);
2864 }
2865 }
2866 break;
2867 case OP_SBB_IMM: {
2868 if (ins->dreg != ins->sreg1) {
2869 s390_lgr (code, ins->dreg, ins->sreg1);
2870 }
2871 if (s390_is_imm16 (-ins->inst_imm)) {
2872 s390_lghi (code, s390_r0, ins->inst_imm);
2873 s390_slbgr (code, ins->dreg, s390_r0);
2874 } else {
2875 s390_basr (code, s390_r13, 0);
2876 s390_j (code, 6);
2877 s390_llong(code, ins->inst_imm);
2878 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
2879 }
2880 }
2881 break;
2882 case OP_LSUB_OVF: {
2883 CHECK_SRCDST_NCOM;
2884 s390_sgr (code, ins->dreg, src2);
2885 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2886 }
2887 break;
2888 case OP_LSUB_OVF_UN: {
2889 CHECK_SRCDST_NCOM;
2890 s390_slgr (code, ins->dreg, src2);
2891 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2892 }
2893 break;
2894 case OP_SUB_OVF_CARRY: {
2895 CHECK_SRCDST_NCOM;
2896 s390_lghi (code, s390_r0, 0);
2897 s390_lgr (code, s390_r1, s390_r0);
2898 s390_slbgr (code, s390_r0, s390_r1);
2899 s390_sgr (code, ins->dreg, src2);
2900 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2901 s390_agr (code, ins->dreg, s390_r0);
2902 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2903 }
2904 break;
2905 case OP_SUB_OVF_UN_CARRY: {
2906 CHECK_SRCDST_NCOM;
2907 s390_slbgr (code, ins->dreg, src2);
2908 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2909 }
2910 break;
2911 case CEE_AND: {
2912 if (ins->sreg1 == ins->dreg) {
2913 s390_ngr (code, ins->dreg, ins->sreg2);
2914 }
2915 else {
2916 if (ins->sreg2 == ins->dreg) {
2917 s390_ngr (code, ins->dreg, ins->sreg1);
2918 }
2919 else {
2920 s390_lgr (code, ins->dreg, ins->sreg1);
2921 s390_ngr (code, ins->dreg, ins->sreg2);
2922 }
2923 }
2924 }
2925 break;
2926 case OP_AND_IMM: {
2927 if (ins->dreg != ins->sreg1) {
2928 s390_lgr (code, ins->dreg, ins->sreg1);
2929 }
2930 if (s390_is_imm16 (ins->inst_imm)) {
2931 s390_lghi (code, s390_r0, ins->inst_imm);
2932 s390_ngr (code, ins->dreg, s390_r0);
2933 } else {
2934 s390_basr (code, s390_r13, 0);
2935 s390_j (code, 6);
2936 s390_llong(code, ins->inst_imm);
2937 s390_ng (code, ins->dreg, 0, s390_r13, 4);
2938 }
2939 }
2940 break;
2941 case OP_LDIV: {
2942 s390_lgr (code, s390_r1, ins->sreg1);
2943 s390_dsgr (code, s390_r0, ins->sreg2);
2944 s390_lgr (code, ins->dreg, s390_r1);
2945 }
2946 break;
2947 case OP_LDIV_UN: {
2948 s390_lgr (code, s390_r1, ins->sreg1);
2949 s390_lghi (code, s390_r0, 0);
2950 s390_dlgr (code, s390_r0, ins->sreg2);
2951 s390_lgr (code, ins->dreg, s390_r1);
2952 }
2953 break;
2954 case OP_DIV_IMM: {
2955 if (s390_is_imm16 (ins->inst_imm)) {
2956 s390_lghi (code, s390_r13, ins->inst_imm);
2957 s390_lgr (code, s390_r1, ins->sreg1);
2958 } else {
2959 s390_basr (code, s390_r13, 0);
2960 s390_j (code, 6);
2961 s390_llong(code, ins->inst_imm);
2962 s390_lgr (code, s390_r1, ins->sreg1);
2963 s390_lg (code, s390_r13, 0, s390_r13, 4);
2964 }
2965 s390_dsgr (code, s390_r0, s390_r13);
2966 s390_lgr (code, ins->dreg, s390_r1);
2967 }
2968 break;
2969 case OP_LREM: {
2970 s390_lgr (code, s390_r1, ins->sreg1);
2971 s390_dsgr (code, s390_r0, ins->sreg2);
2972 s390_lgr (code, ins->dreg, s390_r0);
2973 break;
2974 }
2975 case OP_LREM_UN: {
2976 s390_lgr (code, s390_r1, ins->sreg1);
2977 s390_lghi (code, s390_r0, 0);
2978 s390_dlgr (code, s390_r0, ins->sreg2);
2979 s390_lgr (code, ins->dreg, s390_r0);
2980 }
2981 break;
2982 case OP_REM_IMM: {
2983 if (s390_is_imm16 (ins->inst_imm)) {
2984 s390_lghi (code, s390_r13, ins->inst_imm);
2985 s390_lgr (code, s390_r0, ins->sreg1);
2986 } else {
2987 s390_basr (code, s390_r13, 0);
2988 s390_j (code, 6);
2989 s390_llong(code, ins->inst_imm);
2990 s390_lgr (code, s390_r0, ins->sreg1);
2991 s390_lg (code, s390_r13, 0, s390_r13, 4);
2992 }
2993 s390_dsgr(code, s390_r0, s390_r13);
2994 s390_lgr (code, ins->dreg, s390_r0);
2995 }
2996 break;
2997 case CEE_OR: {
2998 if (ins->sreg1 == ins->dreg) {
2999 s390_ogr (code, ins->dreg, ins->sreg2);
3000 }
3001 else {
3002 if (ins->sreg2 == ins->dreg) {
3003 s390_ogr (code, ins->dreg, ins->sreg1);
3004 }
3005 else {
3006 s390_lgr (code, ins->dreg, ins->sreg1);
3007 s390_ogr (code, ins->dreg, ins->sreg2);
3008 }
3009 }
3010 }
3011 break;
3012 case OP_OR_IMM: {
3013 if (ins->dreg != ins->sreg1) {
3014 s390_lgr (code, ins->dreg, ins->sreg1);
3015 }
3016 if (s390_is_imm16 (ins->inst_imm)) {
3017 s390_lghi (code, s390_r0, ins->inst_imm);
3018 s390_ogr (code, ins->dreg, s390_r0);
3019 } else {
3020 s390_basr (code, s390_r13, 0);
3021 s390_j (code, 6);
3022 s390_llong(code, ins->inst_imm);
3023 s390_og (code, ins->dreg, 0, s390_r13, 4);
3024 }
3025 }
3026 break;
3027 case CEE_XOR: {
3028 if (ins->sreg1 == ins->dreg) {
3029 s390_xgr (code, ins->dreg, ins->sreg2);
3030 }
3031 else {
3032 if (ins->sreg2 == ins->dreg) {
3033 s390_xgr (code, ins->dreg, ins->sreg1);
3034 }
3035 else {
3036 s390_lgr (code, ins->dreg, ins->sreg1);
3037 s390_xgr (code, ins->dreg, ins->sreg2);
3038 }
3039 }
3040 }
3041 break;
3042 case OP_XOR_IMM: {
3043 if (ins->dreg != ins->sreg1) {
3044 s390_lgr (code, ins->dreg, ins->sreg1);
3045 }
3046 if (s390_is_imm16 (ins->inst_imm)) {
3047 s390_lghi (code, s390_r0, ins->inst_imm);
3048 s390_xgr (code, ins->dreg, s390_r0);
3049 } else {
3050 s390_basr (code, s390_r13, 0);
3051 s390_j (code, 6);
3052 s390_llong(code, ins->inst_imm);
3053 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3054 }
3055 }
3056 break;
3057 case CEE_SHL:
3058 case OP_LSHL: {
3059 CHECK_SRCDST_NCOM;
3060 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3061 }
3062 break;
3063 case OP_SHL_IMM:
3064 case OP_LSHL_IMM: {
3065 if (ins->sreg1 != ins->dreg) {
3066 s390_lgr (code, ins->dreg, ins->sreg1);
3067 }
3068 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3069 }
3070 break;
3071 case CEE_SHR:
3072 case OP_LSHR: {
3073 CHECK_SRCDST_NCOM;
3074 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3075 }
3076 break;
3077 case OP_SHR_IMM:
3078 case OP_LSHR_IMM: {
3079 if (ins->sreg1 != ins->dreg) {
3080 s390_lgr (code, ins->dreg, ins->sreg1);
3081 }
3082 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3083 }
3084 break;
3085 case OP_SHR_UN_IMM:
3086 case OP_LSHR_UN_IMM: {
3087 if (ins->sreg1 != ins->dreg) {
3088 s390_lgr (code, ins->dreg, ins->sreg1);
3089 }
3090 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3091 }
3092 break;
3093 case CEE_SHR_UN:
3094 case OP_LSHR_UN: {
3095 CHECK_SRCDST_NCOM;
3096 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3097 }
3098 break;
3099 case CEE_NOT: {
3100 if (ins->sreg1 != ins->dreg) {
3101 s390_lgr (code, ins->dreg, ins->sreg1);
3102 }
3103 s390_lghi (code, s390_r0, -1);
3104 s390_xgr (code, ins->dreg, s390_r0);
3105 }
3106 break;
3107 case CEE_NEG: {
3108 s390_lcgr (code, ins->dreg, ins->sreg1);
3109 }
3110 break;
3111 case CEE_MUL:
3112 case OP_LMUL: {
3113 CHECK_SRCDST_COM;
3114 s390_msgr (code, ins->dreg, src2);
3115 }
3116 break;
3117 case OP_MUL_IMM:
3118 case OP_LMUL_IMM: {
3119 if (ins->dreg != ins->sreg1) {
3120 s390_lgr (code, ins->dreg, ins->sreg1);
3121 }
3122 if (s390_is_imm16 (ins->inst_imm)) {
3123 s390_lghi (code, s390_r13, ins->inst_imm);
3124 } else {
3125 s390_basr (code, s390_r13, 0);
3126 s390_j (code, 6);
3127 s390_llong(code, ins->inst_imm);
3128 s390_lg (code, s390_r13, 0, s390_r13, 4);
3129 }
3130 s390_msgr (code, ins->dreg, s390_r13);
3131 }
3132 break;
3133 case OP_LMUL_OVF:
3134 case CEE_MUL_OVF: {
3135 short int *o[2];
3136 s390_ltgr (code, s390_r1, ins->sreg1);
3137 s390_jz (code, 0); CODEPTR(code, o[0]);
3138 s390_ltgr (code, s390_r0, ins->sreg2);
3139 s390_jnz (code, 6);
3140 s390_lghi (code, s390_r1, 0);
3141 s390_j (code, 0); CODEPTR(code, o[1]);
3142 s390_xgr (code, s390_r0, s390_r1);
3143 s390_msgr (code, s390_r1, ins->sreg2);
3144 s390_xgr (code, s390_r0, s390_r1);
3145 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3146 s390_ltgr (code, s390_r0, s390_r0);
3147 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3148 PTRSLOT (code, o[0]);
3149 PTRSLOT (code, o[1]);
3150 s390_lgr (code, ins->dreg, s390_r1);
3151 }
3152 break;
3153 case OP_LMUL_OVF_UN:
3154 case CEE_MUL_OVF_UN: {
3155 s390_lghi (code, s390_r0, 0);
3156 s390_lgr (code, s390_r1, ins->sreg1);
3157 s390_mlgr (code, s390_r0, ins->sreg2);
3158 s390_ltgr (code, s390_r0, s390_r0);
3159 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3160 s390_lgr (code, ins->dreg, s390_r1);
3161 }
3162 break;
3163 case OP_IADDCC: {
3164 g_assert_not_reached ();
3165 CHECK_SRCDST_COM_I;
3166 s390_algr (code, ins->dreg, src2);
3167 }
3168 break;
3169 case OP_IADD: {
3170 CHECK_SRCDST_COM_I;
3171 s390_agr (code, ins->dreg, src2);
3172 }
3173 break;
3174 case OP_IADC: {
3175 g_assert_not_reached ();
3176 CHECK_SRCDST_COM_I;
3177 s390_alcgr (code, ins->dreg, src2);
3178 }
3179 break;
3180 case OP_IADD_IMM: {
3181 if (ins->dreg != ins->sreg1) {
3182 s390_lgfr (code, ins->dreg, ins->sreg1);
3183 }
3184 if (s390_is_imm16 (ins->inst_imm)) {
3185 s390_aghi(code, ins->dreg, ins->inst_imm);
3186 } else {
3187 s390_basr (code, s390_r13, 0);
3188 s390_j (code, 4);
3189 s390_word (code, ins->inst_imm);
3190 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3191 }
3192 }
3193 break;
3194 case OP_IADC_IMM: {
3195 if (ins->dreg != ins->sreg1) {
3196 s390_lgfr (code, ins->dreg, ins->sreg1);
3197 }
3198 if (s390_is_imm16 (ins->inst_imm)) {
3199 s390_lghi (code, s390_r0, ins->inst_imm);
3200 s390_alcgr (code, ins->dreg, s390_r0);
3201 } else {
3202 s390_basr (code, s390_r13, 0);
3203 s390_j (code, 4);
3204 s390_word (code, ins->inst_imm);
3205 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3206 s390_alcgr (code, ins->dreg, s390_r13);
3207 }
3208 }
3209 break;
3210 case CEE_ADD_OVF: {
3211 CHECK_SRCDST_COM;
3212 s390_ar (code, ins->dreg, src2);
3213 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3214 s390_lgfr (code, ins->dreg, ins->dreg);
3215 }
3216 break;
3217 case CEE_ADD_OVF_UN: {
3218 CHECK_SRCDST_COM;
3219 s390_algr (code, ins->dreg, src2);
3220 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3221 s390_llgfr (code, ins->dreg, ins->dreg);
3222 }
3223 break;
3224 case OP_ISUBCC: {
3225 CHECK_SRCDST_NCOM_I;
3226 s390_slgr (code, ins->dreg, src2);
3227 }
3228 break;
3229 case OP_ISUB: {
3230 CHECK_SRCDST_NCOM_I;
3231 s390_sgr (code, ins->dreg, src2);
3232 }
3233 break;
3234 case OP_ISBB: {
3235 CHECK_SRCDST_NCOM_I;
3236 s390_slbgr (code, ins->dreg, src2);
3237 }
3238 break;
3239 case OP_ISUB_IMM: {
3240 if (ins->dreg != ins->sreg1) {
3241 s390_lgfr (code, ins->dreg, ins->sreg1);
3242 }
3243 if (s390_is_imm16 (-ins->inst_imm)) {
3244 s390_aghi (code, ins->dreg, -ins->inst_imm);
3245 } else {
3246 s390_basr (code, s390_r13, 0);
3247 s390_j (code, 4);
3248 s390_word (code, ins->inst_imm);
3249 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3250 }
3251 }
3252 break;
3253 case OP_ISBB_IMM: {
3254 s390_basr (code, s390_r13, 0);
3255 s390_j (code, 4);
3256 s390_word (code, ins->inst_imm);
3257 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3258 }
3259 break;
3260 case CEE_SUB_OVF: {
3261 CHECK_SRCDST_NCOM;
3262 s390_sr (code, ins->dreg, src2);
3263 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3264 s390_lgfr (code, ins->dreg, ins->dreg);
3265 }
3266 break;
3267 case CEE_SUB_OVF_UN: {
3268 CHECK_SRCDST_NCOM;
3269 s390_slr (code, ins->dreg, src2);
3270 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3271 s390_llgfr(code, ins->dreg, ins->dreg);
3272 }
3273 break;
3274 case OP_IAND: {
3275 CHECK_SRCDST_NCOM_I;
3276 s390_ngr (code, ins->dreg, src2);
3277 }
3278 break;
3279 case OP_IAND_IMM: {
3280 if (ins->dreg != ins->sreg1) {
3281 s390_lgfr (code, ins->dreg, ins->sreg1);
3282 }
3283 if (s390_is_imm16 (ins->inst_imm)) {
3284 s390_lghi (code, s390_r0, ins->inst_imm);
3285 s390_ngr (code, ins->dreg, s390_r0);
3286 } else {
3287 s390_basr (code, s390_r13, 0);
3288 s390_j (code, 6);
3289 s390_llong(code, ins->inst_imm);
3290 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3291 }
3292 }
3293 break;
3294 case OP_IDIV: {
3295 s390_lgfr (code, s390_r0, ins->sreg1);
3296 s390_srda (code, s390_r0, 0, 32);
3297 s390_dr (code, s390_r0, ins->sreg2);
3298 s390_lgfr (code, ins->dreg, s390_r1);
3299 }
3300 break;
3301 case OP_IDIV_UN: {
3302 s390_lgfr (code, s390_r0, ins->sreg1);
3303 s390_srdl (code, s390_r0, 0, 32);
3304 s390_dlr (code, s390_r0, ins->sreg2);
3305 s390_lgfr (code, ins->dreg, s390_r1);
3306 }
3307 break;
3308 case OP_IDIV_IMM: {
3309 if (s390_is_imm16 (ins->inst_imm)) {
3310 s390_lghi (code, s390_r13, ins->inst_imm);
3311 s390_lgfr (code, s390_r0, ins->sreg1);
3312 } else {
3313 s390_basr (code, s390_r13, 0);
3314 s390_j (code, 4);
3315 s390_word (code, ins->inst_imm);
3316 s390_lgfr (code, s390_r0, ins->sreg1);
3317 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3318 }
3319 s390_srda (code, s390_r0, 0, 32);
3320 s390_dr (code, s390_r0, ins->sreg2);
3321 s390_lgfr (code, ins->dreg, s390_r1);
3322 }
3323 break;
3324 case OP_IREM: {
3325 s390_lgfr (code, s390_r0, ins->sreg1);
3326 s390_srda (code, s390_r0, 0, 32);
3327 s390_dr (code, s390_r0, ins->sreg2);
3328 s390_lgfr (code, ins->dreg, s390_r0);
3329 break;
3330 case OP_IREM_UN:
3331 s390_lgfr (code, s390_r0, ins->sreg1);
3332 s390_srdl (code, s390_r0, 0, 32);
3333 s390_dlr (code, s390_r0, ins->sreg2);
3334 s390_lgfr (code, ins->dreg, s390_r0);
3335 }
3336 break;
3337 case OP_IREM_IMM: {
3338 if (s390_is_imm16 (ins->inst_imm)) {
3339 s390_lghi (code, s390_r13, ins->inst_imm);
3340 s390_lgfr (code, s390_r0, ins->sreg1);
3341 } else {
3342 s390_basr (code, s390_r13, 0);
3343 s390_j (code, 4);
3344 s390_word (code, ins->inst_imm);
3345 s390_lgfr (code, s390_r0, ins->sreg1);
3346 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3347 }
3348 s390_srda (code, s390_r0, 0, 32);
3349 s390_dr (code, s390_r0, ins->sreg2);
3350 s390_lgfr (code, ins->dreg, s390_r0);
3351 }
3352 break;
3353 case OP_IOR: {
3354 CHECK_SRCDST_COM_I;
3355 s390_ogr (code, ins->dreg, src2);
3356 }
3357 break;
3358 case OP_IOR_IMM: {
3359 if (ins->dreg != ins->sreg1) {
3360 s390_lgfr (code, ins->dreg, ins->sreg1);
3361 }
3362 if (s390_is_imm16 (ins->inst_imm)) {
3363 s390_lghi (code, s390_r0, ins->inst_imm);
3364 s390_ogr (code, ins->dreg, s390_r0);
3365 } else {
3366 s390_basr (code, s390_r13, 0);
3367 s390_j (code, 6);
3368 s390_llong(code, ins->inst_imm);
3369 s390_og (code, ins->dreg, 0, s390_r13, 4);
3370 }
3371 }
3372 break;
3373 case OP_IXOR: {
3374 CHECK_SRCDST_COM_I;
3375 s390_xgr (code, ins->dreg, src2);
3376 }
3377 break;
3378 case OP_IXOR_IMM: {
3379 if (ins->dreg != ins->sreg1) {
3380 s390_lgfr (code, ins->dreg, ins->sreg1);
3381 }
3382 if (s390_is_imm16 (ins->inst_imm)) {
3383 s390_lghi (code, s390_r0, ins->inst_imm);
3384 s390_xgr (code, ins->dreg, s390_r0);
3385 } else {
3386 s390_basr (code, s390_r13, 0);
3387 s390_j (code, 6);
3388 s390_llong(code, ins->inst_imm);
3389 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3390 }
3391 }
3392 break;
3393 case OP_ISHL: {
3394 if (ins->sreg1 != ins->dreg) {
3395 s390_lgfr (code, ins->dreg, ins->sreg1);
3396 }
3397 s390_sll (code, ins->dreg, ins->sreg2, 0);
3398 }
3399 break;
3400 case OP_ISHL_IMM: {
3401 if (ins->sreg1 != ins->dreg) {
3402 s390_lgfr (code, ins->dreg, ins->sreg1);
3403 }
3404 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3405 }
3406 break;
3407 case OP_ISHR: {
3408 if (ins->sreg1 != ins->dreg) {
3409 s390_lgfr (code, ins->dreg, ins->sreg1);
3410 }
3411 s390_sra (code, ins->dreg, ins->sreg2, 0);
3412 }
3413 break;
3414 case OP_ISHR_IMM: {
3415 if (ins->sreg1 != ins->dreg) {
3416 s390_lgfr (code, ins->dreg, ins->sreg1);
3417 }
3418 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3419 }
3420 break;
3421 case OP_ISHR_UN_IMM: {
3422 if (ins->sreg1 != ins->dreg) {
3423 s390_lgfr (code, ins->dreg, ins->sreg1);
3424 }
3425 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3426 }
3427 break;
3428 case OP_ISHR_UN: {
3429 if (ins->sreg1 != ins->dreg) {
3430 s390_lgfr (code, ins->dreg, ins->sreg1);
3431 }
3432 s390_srl (code, ins->dreg, ins->sreg2, 0);
3433 }
3434 break;
3435 case OP_INOT: {
3436 if (ins->sreg1 != ins->dreg) {
3437 s390_lgfr (code, ins->dreg, ins->sreg1);
3438 }
3439 s390_lghi (code, s390_r0, -1);
3440 s390_xgr (code, ins->dreg, s390_r0);
3441 }
3442 break;
3443 case OP_INEG: {
3444 s390_lcgr (code, ins->dreg, ins->sreg1);
3445 }
3446 break;
3447 case OP_IMUL: {
3448 CHECK_SRCDST_COM_I;
3449 s390_msr (code, ins->dreg, src2);
3450 }
3451 break;
3452 case OP_IMUL_IMM: {
3453 if (ins->dreg != ins->sreg1) {
3454 s390_lgfr (code, ins->dreg, ins->sreg1);
3455 }
3456 if (s390_is_imm16 (ins->inst_imm)) {
3457 s390_lghi (code, s390_r13, ins->inst_imm);
3458 } else {
3459 s390_basr (code, s390_r13, 0);
3460 s390_j (code, 4);
3461 s390_word (code, ins->inst_imm);
3462 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3463 }
3464 s390_msr (code, ins->dreg, s390_r13);
3465 }
3466 break;
3467 case OP_IMUL_OVF: {
3468 short int *o[2];
3469 s390_ltr (code, s390_r1, ins->sreg1);
3470 s390_jz (code, 0); CODEPTR(code, o[0]);
3471 s390_ltr (code, s390_r0, ins->sreg2);
3472 s390_jnz (code, 6);
3473 s390_lhi (code, s390_r1, 0);
3474 s390_j (code, 0); CODEPTR(code, o[1]);
3475 s390_xr (code, s390_r0, s390_r1);
3476 s390_msr (code, s390_r1, ins->sreg2);
3477 s390_xr (code, s390_r0, s390_r1);
3478 s390_srl (code, s390_r0, 0, 31);
3479 s390_ltr (code, s390_r0, s390_r0);
3480 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3481 PTRSLOT (code, o[0]);
3482 PTRSLOT (code, o[1]);
3483 s390_lgfr (code, ins->dreg, s390_r1);
3484 }
3485 break;
3486 case OP_IMUL_OVF_UN: {
3487 s390_lhi (code, s390_r0, 0);
3488 s390_lr (code, s390_r1, ins->sreg1);
3489 s390_mlr (code, s390_r0, ins->sreg2);
3490 s390_ltr (code, s390_r0, s390_r0);
3491 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3492 s390_lgfr (code, ins->dreg, s390_r1);
3493 }
3494 break;
3495 case OP_ICONST:
3496 case OP_I8CONST:
3497 case OP_SETREGIMM: {
3498 if (s390_is_imm16(ins->inst_c0)) {
3499 s390_lghi (code, ins->dreg, ins->inst_c0);
3500 } else {
3501 s390_basr (code, s390_r13, 0);
3502 s390_j (code, 6);
3503 s390_llong(code, ins->inst_c0);
3504 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3505 }
3506 }
3507 break;
3508 case OP_AOTCONST: {
3509 s390_basr (code, s390_r13, 0);
3510 s390_j (code, 6);
3511 mono_add_patch_info (cfg, code - cfg->native_code,
3512 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3513 s390_llong(code, 0);
3514 s390_lg (code,ins->dreg, 0, s390_r13, 4);
3515 }
3516 break;
3517 case CEE_CONV_I:
3518 case CEE_CONV_I8:
3519 case OP_MOVE:
3520 case OP_SETREG: {
3521 if (ins->dreg != ins->sreg1) {
3522 s390_lgr (code, ins->dreg, ins->sreg1);
3523 }
3524 }
3525 break;
3526 case CEE_CONV_I4:
3527 s390_lgfr (code, ins->dreg, ins->sreg1);
3528 break;
3529 case CEE_CONV_U:
3530 case CEE_CONV_U8:
3531 case CEE_CONV_U4:
3532 s390_llgfr (code, ins->dreg, ins->sreg1);
3533 break;
3534 case CEE_CONV_OVF_U4:
3535 s390_basr (code, s390_r13, 0);
3536 s390_j (code, 6);
3537 s390_llong(code, 4294967295);
3538 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3539 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3540 s390_ltgr (code, ins->sreg1, ins->sreg1);
3541 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3542 s390_llgfr(code, ins->dreg, ins->sreg1);
3543 break;
3544 case CEE_CONV_OVF_I4_UN:
3545 s390_basr (code, s390_r13, 0);
3546 s390_j (code, 6);
3547 s390_llong(code, 2147483647);
3548 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3549 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3550 s390_ltgr (code, ins->sreg1, ins->sreg1);
3551 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3552 s390_lgfr (code, ins->dreg, ins->sreg1);
3553 break;
3554 case OP_SETFREG:
3555 case OP_FMOVE: {
3556 if (ins->dreg != ins->sreg1) {
3557 s390_ldr (code, ins->dreg, ins->sreg1);
3558 }
3559 }
3560 break;
3561 case OP_S390_SETF4RET: {
3562 s390_ledbr (code, ins->dreg, ins->sreg1);
3563 }
3564 break;
3565 case OP_FCONV_TO_R4: {
3566 g_error ("Shouldn't be reached");
3567 if ((ins->next) &&
3568 (ins->next->opcode != OP_FMOVE) &&
3569 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3570 s390_ledbr (code, ins->dreg, ins->sreg1);
3571 }
3572 break;
3573 case CEE_JMP: {
3574 if (cfg->method->save_lmf)
3575 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3576
3577 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3578 code = emit_load_volatile_registers(code, cfg);
3579 }
3580
3581 code = backUpStackPtr(cfg, code);
3582 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3583 mono_add_patch_info (cfg, code - cfg->native_code,
3584 MONO_PATCH_INFO_METHOD_JUMP,
3585 ins->inst_p0);
3586 s390_jcl (code, S390_CC_UN, 0);
3587 }
3588 break;
3589 case OP_CHECK_THIS: {
3590 /* ensure ins->sreg1 is not NULL */
3591 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
3592 s390_ltgr (code, s390_r0, s390_r0);
3593 }
3594 break;
3595 case OP_ARGLIST: {
3596 int offset = cfg->sig_cookie + cfg->stack_usage;
3597
3598 if (s390_is_imm16 (offset))
3599 s390_lghi (code, s390_r0, offset);
3600 else {
3601 s390_basr (code, s390_r13, 0);
3602 s390_j (code, 6);
3603 s390_llong(code, offset);
3604 s390_lg (code, s390_r0, 0, s390_r13, 0);
3605 }
3606 s390_agr (code, s390_r0, cfg->frame_reg);
3607 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
3608 }
3609 break;
3610 case OP_FCALL: {
3611 s390_basr (code, s390_r13, 0);
3612 s390_j (code, 6);
3613 call = (MonoCallInst*)ins;
3614 if (ins->flags & MONO_INST_HAS_METHOD)
3615 mono_add_patch_info (cfg, code-cfg->native_code,
3616 MONO_PATCH_INFO_METHOD,
3617 call->method);
3618 else
3619 mono_add_patch_info (cfg, code-cfg->native_code,
3620 MONO_PATCH_INFO_ABS,
3621 call->fptr);
3622 s390_llong(code, 0);
3623 s390_lg (code, s390_r14, 0, s390_r13, 4);
3624 s390_basr (code, s390_r14, s390_r14);
3625 if (call->signature->ret->type == MONO_TYPE_R4)
3626 s390_ldebr (code, s390_f0, s390_f0);
3627 }
3628 break;
3629 case OP_LCALL:
3630 case OP_VCALL:
3631 case OP_VOIDCALL:
3632 case CEE_CALL: {
3633 s390_basr (code, s390_r13, 0);
3634 s390_j (code, 6);
3635 call = (MonoCallInst*)ins;
3636 if (ins->flags & MONO_INST_HAS_METHOD)
3637 mono_add_patch_info (cfg, code-cfg->native_code,
3638 MONO_PATCH_INFO_METHOD,
3639 call->method);
3640 else
3641 mono_add_patch_info (cfg, code-cfg->native_code,
3642 MONO_PATCH_INFO_ABS,
3643 call->fptr);
3644 s390_llong(code, 0);
3645 s390_lg (code, s390_r14, 0, s390_r13, 4);
3646 s390_basr (code, s390_r14, s390_r14);
3647 }
3648 break;
3649 case OP_FCALL_REG: {
3650 call = (MonoCallInst*)ins;
3651 s390_lgr (code, s390_r1, ins->sreg1);
3652 s390_basr (code, s390_r14, s390_r1);
3653 if (call->signature->ret->type == MONO_TYPE_R4)
3654 s390_ldebr (code, s390_f0, s390_f0);
3655 }
3656 break;
3657 case OP_LCALL_REG:
3658 case OP_VCALL_REG:
3659 case OP_VOIDCALL_REG:
3660 case OP_CALL_REG: {
3661 s390_lgr (code, s390_r1, ins->sreg1);
3662 s390_basr (code, s390_r14, s390_r1);
3663 }
3664 break;
3665 case OP_FCALL_MEMBASE: {
3666 call = (MonoCallInst*)ins;
3667 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3668 s390_basr (code, s390_r14, s390_r1);
3669 if (call->signature->ret->type == MONO_TYPE_R4)
3670 s390_ldebr (code, s390_f0, s390_f0);
3671 }
3672 break;
3673 case OP_LCALL_MEMBASE:
3674 case OP_VCALL_MEMBASE:
3675 case OP_VOIDCALL_MEMBASE:
3676 case OP_CALL_MEMBASE: {
3677 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3678 s390_basr (code, s390_r14, s390_r1);
3679 }
3680 break;
3681 case OP_OUTARG:
3682 g_assert_not_reached ();
3683 break;
3684 case OP_LOCALLOC: {
3685 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3686 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3687 s390_lgr (code, s390_r1, ins->sreg1);
3688 if (ins->flags & MONO_INST_INIT)
3689 s390_lgr (code, s390_r0, ins->sreg1);
3690 s390_aghi (code, s390_r1, 14);
3691 s390_srlg (code, s390_r1, s390_r1, 0, 3);
3692 s390_sllg (code, s390_r1, s390_r1, 0, 3);
3693 if (cfg->method->save_lmf) {
3694 /*----------------------------------*/
3695 /* we have to adjust lmf ebp value */
3696 /*----------------------------------*/
3697 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3698
3699 s390_lgr (code, s390_r13, cfg->frame_reg);
3700 if (s390_is_uimm16(lmfOffset))
3701 s390_aghi (code, s390_r13, lmfOffset);
3702 else {
3703 s390_basr (code, s390_r14, 0);
3704 s390_j (code, 4);
3705 s390_word (code, lmfOffset);
3706 s390_agf (code, s390_r13, 0, s390_r14, 4);
3707 }
3708 s390_lgr (code, s390_r14, STK_BASE);
3709 s390_sgr (code, s390_r14, s390_r1);
3710 s390_stg (code, s390_r14, 0, s390_r13,
3711 G_STRUCT_OFFSET(MonoLMF, ebp));
3712 }
3713 s390_lg (code, s390_r13, 0, STK_BASE, 0);
3714 s390_sgr (code, STK_BASE, s390_r1);
3715 s390_stg (code, s390_r13, 0, STK_BASE, 0);
3716 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3717 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
3718 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
3719 if (ins->flags & MONO_INST_INIT) {
3720 s390_lgr (code, s390_r1, s390_r0);
3721 s390_lgr (code, s390_r0, ins->dreg);
3722 s390_lgr (code, s390_r14, s390_r12);
3723 s390_lghi (code, s390_r13, 0);
3724 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3725 s390_jo (code, -2);
3726 s390_lgr (code, s390_r12, s390_r14);
3727 }
3728 }
3729 break;
3730 case CEE_RET: {
3731 s390_br (code, s390_r14);
3732 }
3733 break;
3734 case CEE_THROW: {
3735 s390_lgr (code, s390_r2, ins->sreg1);
3736 s390_basr (code, s390_r13, 0);
3737 s390_j (code, 6);
3738 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3739 (gpointer) "mono_arch_throw_exception");
3740 s390_llong(code, 0);
3741 s390_lg (code, s390_r14, 0, s390_r13, 4);
3742 s390_basr (code, s390_r14, s390_r14);
3743 }
3744 break;
3745 case OP_RETHROW: {
3746 s390_lgr (code, s390_r2, ins->sreg1);
3747 s390_basr (code, s390_r13, 0);
3748 s390_j (code, 6);
3749 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3750 (gpointer) "mono_arch_rethrow_exception");
3751 s390_llong(code, 0);
3752 s390_lg (code, s390_r14, 0, s390_r13, 4);
3753 s390_basr (code, s390_r14, s390_r14);
3754 }
3755 break;
3756 case OP_START_HANDLER: {
3757 S390_LONG (code, stg, stg, s390_r14, 0,
3758 ins->inst_left->inst_basereg,
3759 ins->inst_left->inst_offset);
3760 }
3761 break;
3762 case OP_ENDFILTER: {
3763 if (ins->sreg1 != s390_r2)
3764 s390_lgr(code, s390_r2, ins->sreg1);
3765 S390_LONG (code, lg, lg, s390_r14, 0,
3766 ins->inst_left->inst_basereg,
3767 ins->inst_left->inst_offset);
3768 s390_br (code, s390_r14);
3769 }
3770 break;
3771 case CEE_ENDFINALLY: {
3772 S390_LONG (code, lg, lg, s390_r14, 0,
3773 ins->inst_left->inst_basereg,
3774 ins->inst_left->inst_offset);
3775 s390_br (code, s390_r14);
3776 }
3777 break;
3778 case OP_CALL_HANDLER: {
3779 mono_add_patch_info (cfg, code-cfg->native_code,
3780 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3781 s390_brasl (code, s390_r14, 0);
3782 }
3783 break;
3784 case OP_LABEL: {
3785 ins->inst_c0 = code - cfg->native_code;
3786 }
3787 break;
3788 case CEE_BR:
3789 EMIT_UNCOND_BRANCH(ins);
3790 break;
3791 case OP_BR_REG: {
3792 s390_br (code, ins->sreg1);
3793 }
3794 break;
3795 case OP_CEQ:
3796 case OP_ICEQ: {
3797 s390_lghi(code, ins->dreg, 1);
3798 s390_jz (code, 4);
3799 s390_lghi(code, ins->dreg, 0);
3800 }
3801 break;
3802 case OP_CLT:
3803 case OP_ICLT: {
3804 s390_lghi(code, ins->dreg, 1);
3805 s390_jl (code, 4);
3806 s390_lghi(code, ins->dreg, 0);
3807 }
3808 break;
3809 case OP_CLT_UN:
3810 case OP_ICLT_UN: {
3811 s390_lghi(code, ins->dreg, 1);
3812 s390_jlo (code, 4);
3813 s390_lghi(code, ins->dreg, 0);
3814 }
3815 break;
3816 case OP_CGT:
3817 case OP_ICGT: {
3818 s390_lghi(code, ins->dreg, 1);
3819 s390_jh (code, 4);
3820 s390_lghi(code, ins->dreg, 0);
3821 }
3822 break;
3823 case OP_CGT_UN:
3824 case OP_ICGT_UN: {
3825 s390_lghi(code, ins->dreg, 1);
3826 s390_jho (code, 4);
3827 s390_lghi(code, ins->dreg, 0);
3828 }
3829 break;
3830 case OP_COND_EXC_EQ:
3831 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3832 break;
3833 case OP_COND_EXC_NE_UN:
3834 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3835 break;
3836 case OP_COND_EXC_LT:
3837 case OP_COND_EXC_LT_UN:
3838 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3839 break;
3840 case OP_COND_EXC_GT:
3841 case OP_COND_EXC_GT_UN:
3842 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3843 break;
3844 case OP_COND_EXC_GE:
3845 case OP_COND_EXC_GE_UN:
3846 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3847 break;
3848 case OP_COND_EXC_LE:
3849 case OP_COND_EXC_LE_UN:
3850 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3851 break;
3852 case OP_COND_EXC_OV:
3853 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3854 break;
3855 case OP_COND_EXC_NO:
3856 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3857 break;
3858 case OP_COND_EXC_C:
3859 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3860 break;
3861 case OP_COND_EXC_NC:
3862 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3863 break;
3864 case CEE_BEQ:
3865 case OP_IBEQ:
3866 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3867 break;
3868 case CEE_BNE_UN:
3869 case OP_IBNE_UN:
3870 EMIT_COND_BRANCH (ins, S390_CC_NE);
3871 break;
3872 case CEE_BLT:
3873 case CEE_BLT_UN:
3874 case OP_IBLT:
3875 case OP_IBLT_UN:
3876 EMIT_COND_BRANCH (ins, S390_CC_LT);
3877 break;
3878 case CEE_BGT:
3879 case CEE_BGT_UN:
3880 case OP_IBGT:
3881 case OP_IBGT_UN:
3882 EMIT_COND_BRANCH (ins, S390_CC_GT);
3883 break;
3884 case CEE_BGE:
3885 case CEE_BGE_UN:
3886 case OP_IBGE:
3887 case OP_IBGE_UN:
3888 EMIT_COND_BRANCH (ins, S390_CC_GE);
3889 break;
3890 case CEE_BLE:
3891 case CEE_BLE_UN:
3892 case OP_IBLE:
3893 case OP_IBLE_UN:
3894 EMIT_COND_BRANCH (ins, S390_CC_LE);
3895 break;
3896
3897 /* floating point opcodes */
3898 case OP_R8CONST: {
3899 if (*((float *) ins->inst_p0) == 0) {
3900 s390_lzdr (code, ins->dreg);
3901 } else {
3902 s390_basr (code, s390_r13, 0);
3903 s390_j (code, 6);
3904 s390_llong (code, ins->inst_p0);
3905 s390_lg (code, s390_r13, 0, s390_r13, 4);
3906 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3907 }
3908 }
3909 break;
3910 case OP_R4CONST: {
3911 if (*((float *) ins->inst_p0) == 0) {
3912 s390_lzdr (code, ins->dreg);
3913 } else {
3914 s390_basr (code, s390_r13, 0);
3915 s390_j (code, 6);
3916 s390_llong(code, ins->inst_p0);
3917 s390_lg (code, s390_r13, 0, s390_r13, 4);
3918 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3919 }
3920 }
3921 break;
3922 case OP_STORER8_MEMBASE_REG: {
3923 S390_LONG (code, stdy, std, ins->sreg1, 0,
3924 ins->inst_destbasereg, ins->inst_offset);
3925 }
3926 break;
3927 case OP_LOADR8_MEMBASE: {
3928 S390_LONG (code, ldy, ld, ins->dreg, 0,
3929 ins->inst_basereg, ins->inst_offset);
3930 }
3931 break;
3932 case OP_STORER4_MEMBASE_REG: {
3933 s390_ledbr (code, s390_f15, ins->sreg1);
3934 S390_LONG (code, stey, ste, s390_f15, 0,
3935 ins->inst_destbasereg, ins->inst_offset);
3936 }
3937 break;
3938 case OP_LOADR4_MEMBASE: {
3939 S390_LONG (code, ldy, ld, s390_f15, 0,
3940 ins->inst_basereg, ins->inst_offset);
3941 s390_ldebr (code, ins->dreg, s390_f15);
3942 }
3943 break;
3944 case CEE_CONV_R_UN: {
3945 s390_cdgbr (code, ins->dreg, ins->sreg1);
3946 s390_ltgr (code, ins->sreg1, ins->sreg1);
3947 s390_jnl (code, 12);
3948 s390_basr (code, s390_r13, 0);
3949 s390_j (code, 6);
3950 s390_word (code, 0x41f00000);
3951 s390_word (code, 0);
3952 s390_adb (code, ins->dreg, 0, s390_r13, 4);
3953 }
3954 break;
3955 case OP_LCONV_TO_R4:
3956 case CEE_CONV_R4: {
3957 s390_cdgbr (code, ins->dreg, ins->sreg1);
3958 }
3959 break;
3960 case OP_LCONV_TO_R8:
3961 case CEE_CONV_R8: {
3962 s390_cdgbr (code, ins->dreg, ins->sreg1);
3963 }
3964 break;
3965 case OP_FCONV_TO_I1:
3966 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
3967 break;
3968 case OP_FCONV_TO_U1:
3969 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
3970 break;
3971 case OP_FCONV_TO_I2:
3972 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
3973 break;
3974 case OP_FCONV_TO_U2:
3975 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
3976 break;
3977 case OP_FCONV_TO_I4:
3978 case OP_FCONV_TO_I:
3979 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
3980 break;
3981 case OP_FCONV_TO_U4:
3982 case OP_FCONV_TO_U:
3983 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
3984 break;
3985 case OP_FCONV_TO_I8:
3986 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
3987 break;
3988 case OP_FCONV_TO_U8:
3989 g_assert_not_reached ();
3990 /* Implemented as helper calls */
3991 break;
3992 case OP_LCONV_TO_R_UN:
3993 g_assert_not_reached ();
3994 /* Implemented as helper calls */
3995 break;
3996 case OP_LCONV_TO_OVF_I: {
3997 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
3998 short int *o[5];
3999 s390_ltgr (code, ins->sreg2, ins->sreg2);
4000 s390_jnl (code, 0); CODEPTR(code, o[0]);
4001 s390_ltgr (code, ins->sreg1, ins->sreg1);
4002 s390_jnl (code, 0); CODEPTR(code, o[1]);
4003 s390_lhi (code, s390_r13, -1);
4004 s390_cgr (code, ins->sreg1, s390_r13);
4005 s390_jnz (code, 0); CODEPTR(code, o[2]);
4006 if (ins->dreg != ins->sreg2)
4007 s390_lgr (code, ins->dreg, ins->sreg2);
4008 s390_j (code, 0); CODEPTR(code, o[3]);
4009 PTRSLOT(code, o[0]);
4010 s390_jz (code, 0); CODEPTR(code, o[4]);
4011 PTRSLOT(code, o[1]);
4012 PTRSLOT(code, o[2]);
4013 mono_add_patch_info (cfg, code - cfg->native_code,
4014 MONO_PATCH_INFO_EXC, "OverflowException");
4015 s390_brasl (code, s390_r14, 0);
4016 PTRSLOT(code, o[3]);
4017 PTRSLOT(code, o[4]);
4018 }
4019 break;
4020 case OP_ABS: {
4021 s390_lpdbr (code, ins->dreg, ins->sreg1);
4022 }
4023 break;
4024 case OP_SQRT: {
4025 s390_sqdbr (code, ins->dreg, ins->sreg1);
4026 }
4027 break;
4028 case OP_FADD: {
4029 CHECK_SRCDST_COM_F;
4030 s390_adbr (code, ins->dreg, src2);
4031 }
4032 break;
4033 case OP_FSUB: {
4034 CHECK_SRCDST_NCOM_F;
4035 s390_sdbr (code, ins->dreg, src2);
4036 }
4037 break;
4038 case OP_FMUL: {
4039 CHECK_SRCDST_COM_F;
4040 s390_mdbr (code, ins->dreg, src2);
4041 }
4042 break;
4043 case OP_FDIV: {
4044 CHECK_SRCDST_NCOM_F;
4045 s390_ddbr (code, ins->dreg, src2);
4046 }
4047 break;
4048 case OP_FNEG: {
4049 s390_lcdbr (code, ins->dreg, ins->sreg1);
4050 }
4051 break;
4052 case OP_FREM: {
4053 CHECK_SRCDST_NCOM_F;
4054 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4055 }
4056 break;
4057 case OP_FCOMPARE: {
4058 s390_cdbr (code, ins->sreg1, ins->sreg2);
4059 }
4060 break;
4061 case OP_FCEQ: {
4062 s390_cdbr (code, ins->sreg1, ins->sreg2);
4063 s390_lghi (code, ins->dreg, 1);
4064 s390_je (code, 4);
4065 s390_lghi (code, ins->dreg, 0);
4066 }
4067 break;
4068 case OP_FCLT: {
4069 s390_cdbr (code, ins->sreg1, ins->sreg2);
4070 s390_lghi (code, ins->dreg, 1);
4071 s390_jl (code, 4);
4072 s390_lghi (code, ins->dreg, 0);
4073 }
4074 break;
4075 case OP_FCLT_UN: {
4076 s390_cdbr (code, ins->sreg1, ins->sreg2);
4077 s390_lghi (code, ins->dreg, 1);
4078 s390_jlo (code, 4);
4079 s390_lghi (code, ins->dreg, 0);
4080 }
4081 break;
4082 case OP_FCGT: {
4083 s390_cdbr (code, ins->sreg1, ins->sreg2);
4084 s390_lghi (code, ins->dreg, 1);
4085 s390_jh (code, 4);
4086 s390_lghi (code, ins->dreg, 0);
4087 }
4088 break;
4089 case OP_FCGT_UN: {
4090 s390_cdbr (code, ins->sreg1, ins->sreg2);
4091 s390_lghi (code, ins->dreg, 1);
4092 s390_jho (code, 4);
4093 s390_lghi (code, ins->dreg, 0);
4094 }
4095 break;
4096 case OP_FBEQ:
4097 EMIT_COND_BRANCH (ins, S390_CC_EQ|S390_CC_OV);
4098 break;
4099 case OP_FBNE_UN:
4100 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4101 break;
4102 case OP_FBLT:
4103 EMIT_COND_BRANCH (ins, S390_CC_LT);
4104 break;
4105 case OP_FBLT_UN:
4106 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4107 break;
4108 case OP_FBGT:
4109 EMIT_COND_BRANCH (ins, S390_CC_GT);
4110 break;
4111 case OP_FBGT_UN:
4112 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4113 break;
4114 case OP_FBGE:
4115 EMIT_COND_BRANCH (ins, S390_CC_GE);
4116 break;
4117 case OP_FBGE_UN:
4118 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4119 break;
4120 case OP_FBLE:
4121 EMIT_COND_BRANCH (ins, S390_CC_LE);
4122 break;
4123 case OP_FBLE_UN:
4124 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4125 break;
4126 case CEE_CKFINITE: {
4127 short *o;
4128 s390_lhi (code, s390_r13, 0x7f);
4129 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4130 s390_jz (code, 0); CODEPTR(code, o);
4131 mono_add_patch_info (cfg, code - cfg->native_code,
4132 MONO_PATCH_INFO_EXC, "ArithmeticException");
4133 s390_brasl (code, s390_r14,0);
4134 PTRSLOT(code, o);
4135 }
4136 break;
4137 case OP_S390_MOVE: {
4138 if (ins->backend.size > 0) {
4139 if (ins->backend.size <= 256) {
4140 s390_mvc (code, ins->backend.size, ins->dreg,
4141 ins->inst_offset, ins->sreg1, ins->inst_imm);
4142 } else {
4143 s390_lgr (code, s390_r0, ins->dreg);
4144 if (s390_is_imm16 (ins->inst_offset)) {
4145 s390_aghi (code, s390_r0, ins->inst_offset);
4146 } else {
4147 s390_basr (code, s390_r13, 0);
4148 s390_j (code, 6);
4149 s390_llong(code, ins->inst_offset);
4150 s390_a (code, s390_r0, 0, s390_r13, 4);
4151 }
4152 s390_lgr (code, s390_r12, ins->sreg1);
4153 if (s390_is_imm16 (ins->inst_imm)) {
4154 s390_aghi (code, s390_r12, ins->inst_imm);
4155 } else {
4156 s390_basr (code, s390_r13, 0);
4157 s390_j (code, 6);
4158 s390_llong(code, ins->inst_imm);
4159 s390_ag (code, s390_r12, 0, s390_r13, 4);
4160 }
4161 s390_lgr (code, s390_r1, ins->sreg1);
4162 s390_lgr (code, s390_r13, s390_r1);
4163 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4164 s390_jo (code, -2);
4165 }
4166 }
4167 }
4168 break;
4169 case OP_ATOMIC_ADD_I8: {
4170 s390_lgr (code, s390_r1, ins->sreg2);
4171 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4172 s390_agr (code, s390_r1, s390_r0);
4173 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4174 s390_jnz (code, -10);
4175 s390_lgr (code, ins->dreg, s390_r1);
4176 }
4177 break;
4178 case OP_ATOMIC_ADD_NEW_I8: {
4179 s390_lgr (code, s390_r1, ins->sreg2);
4180 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4181 s390_agr (code, s390_r1, s390_r0);
4182 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4183 s390_jnz (code, -10);
4184 s390_lgr (code, ins->dreg, s390_r1);
4185 }
4186 break;
4187 case OP_ATOMIC_EXCHANGE_I8: {
4188 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4189 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4190 s390_jnz (code, -6);
4191 s390_lgr (code, ins->dreg, s390_r0);
4192 }
4193 break;
4194 case OP_ATOMIC_ADD_I4: {
4195 s390_lgfr(code, s390_r1, ins->sreg2);
4196 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4197 s390_agr (code, s390_r1, s390_r0);
4198 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4199 s390_jnz (code, -9);
4200 s390_lgfr(code, ins->dreg, s390_r1);
4201 }
4202 break;
4203 case OP_ATOMIC_ADD_NEW_I4: {
4204 s390_lgfr(code, s390_r1, ins->sreg2);
4205 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4206 s390_agr (code, s390_r1, s390_r0);
4207 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4208 s390_jnz (code, -9);
4209 s390_lgfr(code, ins->dreg, s390_r1);
4210 }
4211 break;
4212 case OP_ATOMIC_EXCHANGE_I4: {
4213 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4214 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4215 s390_jnz (code, -4);
4216 s390_lgfr(code, ins->dreg, s390_r0);
4217 }
4218 break;
4219 case OP_S390_BKCHAIN: {
4220 s390_lgr (code, ins->dreg, ins->sreg1);
4221 if (s390_is_imm16 (cfg->stack_offset)) {
4222 s390_aghi (code, ins->dreg, cfg->stack_offset);
4223 } else {
4224 s390_basr (code, s390_r13, 0);
4225 s390_j (code, 6);
4226 s390_llong(code, cfg->stack_offset);
4227 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4228 }
4229 }
4230 break;
4231 case OP_MEMORY_BARRIER: {
4232 }
4233 break;
4234 default:
4235 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4236 g_assert_not_reached ();
4237 }
4238
4239 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4240 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4241 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4242 g_assert_not_reached ();
4243 }
4244
4245 cpos += max_len;
4246
4247 last_ins = ins;
4248 last_offset = offset;
4249
4250 ins = ins->next;
4251 }
4252
4253 cfg->code_len = code - cfg->native_code;
4254 }
4255
4256 /*========================= End of Function ========================*/
4257
4258 /*------------------------------------------------------------------*/
4259 /* */
4260 /* Name - mono_arch_register_lowlevel_calls */
4261 /* */
4262 /* Function - Register routines to help with --trace operation. */
4263 /* */
4264 /*------------------------------------------------------------------*/
4265
4266 void
4267 mono_arch_register_lowlevel_calls (void)
4268 {
4269 mono_register_jit_icall (mono_arch_break, "mono_arch_break", NULL, TRUE);
4270 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4271 }
4272
4273 /*========================= End of Function ========================*/
4274
4275 /*------------------------------------------------------------------*/
4276 /* */
4277 /* Name - mono_arch_break */
4278 /* */
4279 /* Function - Process a "break" operation for debugging. */
4280 /* */
4281 /*------------------------------------------------------------------*/
4282
4283 static void
4284 mono_arch_break(void) {
4285 }
4286
4287 /*========================= End of Function ========================*/
4288
4289 /*------------------------------------------------------------------*/
4290 /* */
4291 /* Name - mono_arch_patch_code */
4292 /* */
4293 /* Function - Process the patch data created during the */
4294 /* instruction build process. This resolves jumps, */
4295 /* calls, variables etc. */
4296 /* */
4297 /*------------------------------------------------------------------*/
4298
4299 void
4300 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4301 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4302 {
4303 MonoJumpInfo *patch_info;
4304
4305 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4306 unsigned char *ip = patch_info->ip.i + code;
4307 gconstpointer target = NULL;
4308
4309 target = mono_resolve_patch_target (method, domain, code,
4310 patch_info, run_cctors);
4311
4312 switch (patch_info->type) {
4313 case MONO_PATCH_INFO_IP:
4314 case MONO_PATCH_INFO_EXC_NAME:
4315 case MONO_PATCH_INFO_LDSTR:
4316 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4317 case MONO_PATCH_INFO_LDTOKEN:
4318 case MONO_PATCH_INFO_EXC:
4319 case MONO_PATCH_INFO_ABS:
4320 case MONO_PATCH_INFO_METHOD:
4321 case MONO_PATCH_INFO_INTERNAL_METHOD:
4322 case MONO_PATCH_INFO_CLASS_INIT:
4323 s390_patch_addr (ip, (guint64) target);
4324 continue;
4325 case MONO_PATCH_INFO_SWITCH:
4326 /*----------------------------------*/
4327 /* ip points at the basr r13,0/j +4 */
4328 /* instruction the vtable value */
4329 /* follows this (i.e. ip+6) */
4330 /*----------------------------------*/
4331 *((gconstpointer *)(ip+6)) = target;
4332 continue;
4333 case MONO_PATCH_INFO_METHODCONST:
4334 case MONO_PATCH_INFO_CLASS:
4335 case MONO_PATCH_INFO_IMAGE:
4336 case MONO_PATCH_INFO_FIELD:
4337 case MONO_PATCH_INFO_IID:
4338 target = S390_RELATIVE(target, ip);
4339 s390_patch_rel (ip, (guint64) target);
4340 continue;
4341 case MONO_PATCH_INFO_R4:
4342 case MONO_PATCH_INFO_R8:
4343 case MONO_PATCH_INFO_METHOD_REL:
4344 g_assert_not_reached ();
4345 continue;
4346 default:
4347 target = S390_RELATIVE(target, ip);
4348 ip += 2;
4349 s390_patch_rel (ip, (guint64) target);
4350 }
4351 }
4352 }
4353
4354 /*========================= End of Function ========================*/
4355
4356 /*------------------------------------------------------------------*/
4357 /* */
4358 /* Name - emit_load_volatile_registers */
4359 /* */
4360 /* Function - Emit the instructions to reload parameter regist- */
4361 /* registers for use with "tail" operations. */
4362 /* */
4363 /* The register loading operations performed here */
4364 /* are the mirror of the store operations performed */
4365 /* in mono_arch_emit_prolog and need to be kept in */
4366 /* synchronization with it. */
4367 /* */
4368 /*------------------------------------------------------------------*/
4369
4370 guint8 *
4371 emit_load_volatile_registers (guint8 *code, MonoCompile *cfg)
4372 {
4373 MonoInst *inst;
4374 MonoMethod *method = cfg->method;
4375 MonoMethodSignature *sig = mono_method_signature(method);
4376 int pos = 0, i;
4377 CallInfo *cinfo;
4378 size_data sz;
4379
4380 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4381
4382 if (cinfo->struct_ret) {
4383 ArgInfo *ainfo = &cinfo->ret;
4384 inst = cfg->ret;
4385 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4386 }
4387
4388 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4389 ArgInfo *ainfo = cinfo->args + i;
4390 inst = cfg->varinfo [pos];
4391
4392 if (inst->opcode == OP_REGVAR) {
4393 if (ainfo->regtype == RegTypeGeneral)
4394 s390_lgr (code, ainfo->reg, inst->dreg);
4395 else if (ainfo->regtype == RegTypeFP) {
4396 if (inst->dreg != ainfo->reg) {
4397 if (ainfo->size == 4) {
4398 s390_ldebr (code, ainfo->reg, inst->dreg);
4399 } else {
4400 s390_ldr (code, ainfo->reg, inst->dreg);
4401 }
4402 }
4403 }
4404 else if (ainfo->regtype == RegTypeBase) {
4405 } else
4406 g_assert_not_reached ();
4407 } else {
4408 if (ainfo->regtype == RegTypeGeneral) {
4409 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4410 g_assert_not_reached();
4411 switch (ainfo->size) {
4412 case 1:
4413 s390_icy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4414 break;
4415 case 2:
4416 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4417 break;
4418 case 4:
4419 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4420 break;
4421 case 8:
4422 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4423 break;
4424 }
4425 } else if (ainfo->regtype == RegTypeBase) {
4426 } else if (ainfo->regtype == RegTypeFP) {
4427 if (ainfo->size == 8)
4428 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4429 else if (ainfo->size == 4)
4430 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4431 else
4432 g_assert_not_reached ();
4433 } else if (ainfo->regtype == RegTypeStructByVal) {
4434 if (ainfo->reg != STK_BASE) {
4435 switch (ainfo->size) {
4436 case 1:
4437 s390_icy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4438 break;
4439 case 2:
4440 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4441 break;
4442 case 4:
4443 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4444 break;
4445 case 8:
4446 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4447 break;
4448 }
4449 }
4450 } else if (ainfo->regtype == RegTypeStructByAddr) {
4451 if (ainfo->reg != STK_BASE) {
4452 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4453 }
4454 } else
4455 g_assert_not_reached ();
4456 }
4457 pos++;
4458 }
4459
4460 g_free (cinfo);
4461
4462 return code;
4463 }
4464
4465 /*========================= End of Function ========================*/
4466
4467 /*------------------------------------------------------------------*/
4468 /* */
4469 /* Name - mono_arch_emit_prolog */
4470 /* */
4471 /* Function - Create the instruction sequence for a function */
4472 /* prolog. */
4473 /* */
4474 /*------------------------------------------------------------------*/
4475
4476 guint8 *
4477 mono_arch_emit_prolog (MonoCompile *cfg)
4478 {
4479 MonoMethod *method = cfg->method;
4480 MonoBasicBlock *bb;
4481 MonoMethodSignature *sig;
4482 MonoInst *inst;
4483 int alloc_size, pos, max_offset, i;
4484 guint8 *code;
4485 CallInfo *cinfo;
4486 size_data sz;
4487 int tracing = 0;
4488 int lmfOffset;
4489
4490 cfg->code_size = 512;
4491
4492 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4493 tracing = 1;
4494 cfg->code_size += 256;
4495 }
4496
4497 if (method->save_lmf)
4498 cfg->code_size += 200;
4499
4500 cfg->native_code = code = g_malloc (cfg->code_size);
4501
4502 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4503
4504 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4505 cfg->used_int_regs |= 1 << 11;
4506 }
4507
4508 alloc_size = cfg->stack_offset;
4509
4510 cfg->stack_usage = alloc_size;
4511 s390_lgr (code, s390_r11, STK_BASE);
4512 if (s390_is_uimm16 (alloc_size)) {
4513 s390_aghi (code, STK_BASE, -alloc_size);
4514 } else {
4515 int stackSize = alloc_size;
4516 while (stackSize > 32767) {
4517 s390_aghi (code, STK_BASE, -32767);
4518 stackSize -= 32767;
4519 }
4520 s390_aghi (code, STK_BASE, -stackSize);
4521 }
4522 s390_stg (code, s390_r11, 0, STK_BASE, 0);
4523
4524 if (cfg->frame_reg != STK_BASE)
4525 s390_lgr (code, s390_r11, STK_BASE);
4526
4527 /* compute max_offset in order to use short forward jumps
4528 * we always do it on s390 because the immediate displacement
4529 * for jumps is too small
4530 */
4531 max_offset = 0;
4532 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4533 MonoInst *ins = bb->code;
4534 bb->max_offset = max_offset;
4535
4536 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4537 max_offset += 6;
4538
4539 while (ins) {
4540 max_offset += ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
4541 ins = ins->next;
4542 }
4543 }
4544
4545 /* load arguments allocated to register from the stack */
4546 sig = mono_method_signature (method);
4547 pos = 0;
4548
4549 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4550
4551 if (cinfo->struct_ret) {
4552 ArgInfo *ainfo = &cinfo->ret;
4553 inst = cfg->ret;
4554 inst->backend.size = ainfo->vtsize;
4555 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4556 }
4557
4558 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4559 ArgInfo *ainfo = cinfo->args + i;
4560 inst = cfg->varinfo [pos];
4561
4562 if (inst->opcode == OP_REGVAR) {
4563 if (ainfo->regtype == RegTypeGeneral)
4564 s390_lgr (code, inst->dreg, ainfo->reg);
4565 else if (ainfo->regtype == RegTypeFP) {
4566 if (inst->dreg != ainfo->reg) {
4567 if (ainfo->size == 4) {
4568 s390_ledbr (code, inst->dreg, ainfo->reg);
4569 } else {
4570 s390_ldr (code, inst->dreg, ainfo->reg);
4571 }
4572 }
4573 }
4574 else if (ainfo->regtype == RegTypeBase) {
4575 s390_lgr (code, s390_r13, STK_BASE);
4576 s390_aghi (code, s390_r13, alloc_size);
4577 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
4578 } else
4579 g_assert_not_reached ();
4580
4581 if (cfg->verbose_level > 2)
4582 g_print ("Argument %d assigned to register %s\n",
4583 pos, mono_arch_regname (inst->dreg));
4584 } else {
4585 if (ainfo->regtype == RegTypeGeneral) {
4586 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4587 g_assert_not_reached();
4588 switch (ainfo->size) {
4589 case 1:
4590 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4591 break;
4592 case 2:
4593 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4594 break;
4595 case 4:
4596 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4597 break;
4598 case 8:
4599 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4600 break;
4601 }
4602 } else if (ainfo->regtype == RegTypeBase) {
4603 } else if (ainfo->regtype == RegTypeFP) {
4604 if (ainfo->size == 8)
4605 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4606 else if (ainfo->size == 4)
4607 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4608 else
4609 g_assert_not_reached ();
4610 } else if (ainfo->regtype == RegTypeStructByVal) {
4611 int doffset = inst->inst_offset;
4612 int reg;
4613 if (ainfo->reg != STK_BASE)
4614 reg = ainfo->reg;
4615 else {
4616 reg = s390_r0;
4617 s390_lgr (code, s390_r13, STK_BASE);
4618 s390_aghi (code, s390_r13, alloc_size);
4619 }
4620 switch (ainfo->size) {
4621 case 1:
4622 if (ainfo->reg == STK_BASE)
4623 s390_ic (code, reg, 0, s390_r13, ainfo->offset+7);
4624 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4625 break;
4626 case 2:
4627 if (ainfo->reg == STK_BASE)
4628 s390_lh (code, reg, 0, s390_r13, ainfo->offset+6);
4629 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4630 break;
4631 case 4:
4632 if (ainfo->reg == STK_BASE)
4633 s390_l (code, reg, 0, s390_r13, ainfo->offset+4);
4634 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4635 break;
4636 case 8:
4637 if (ainfo->reg == STK_BASE)
4638 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
4639 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
4640 break;
4641 }
4642 } else if (ainfo->regtype == RegTypeStructByAddr) {
4643 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4644 } else
4645 g_assert_not_reached ();
4646 }
4647 pos++;
4648 }
4649
4650 if (method->save_lmf) {
4651 /*---------------------------------------------------------------*/
4652 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4653 /*---------------------------------------------------------------*/
4654 lmfOffset = alloc_size - sizeof(MonoLMF);
4655
4656 s390_lgr (code, s390_r13, cfg->frame_reg);
4657 s390_aghi (code, s390_r13, lmfOffset);
4658
4659 /*---------------------------------------------------------------*/
4660 /* Preserve the parameter registers while we fix up the lmf */
4661 /*---------------------------------------------------------------*/
4662 s390_stmg (code, s390_r2, s390_r6, s390_r13,
4663 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4664
4665 /*---------------------------------------------------------------*/
4666 /* On return from this call r2 have the address of the &lmf */
4667 /*---------------------------------------------------------------*/
4668 s390_basr(code, s390_r10, 0);
4669 s390_j (code, 6);
4670 mono_add_patch_info (cfg, code - cfg->native_code,
4671 MONO_PATCH_INFO_INTERNAL_METHOD,
4672 (gpointer)"mono_get_lmf_addr");
4673 s390_llong(code, 0);
4674 s390_lg (code, s390_r1, 0, s390_r10, 4);
4675 s390_basr (code, s390_r14, s390_r1);
4676
4677 /*---------------------------------------------------------------*/
4678 /* Set lmf.lmf_addr = jit_tls->lmf */
4679 /*---------------------------------------------------------------*/
4680 s390_stg (code, s390_r2, 0, s390_r13,
4681 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4682
4683 /*---------------------------------------------------------------*/
4684 /* Get current lmf */
4685 /*---------------------------------------------------------------*/
4686 s390_lg (code, s390_r0, 0, s390_r2, 0);
4687
4688 /*---------------------------------------------------------------*/
4689 /* Set our lmf as the current lmf */
4690 /*---------------------------------------------------------------*/
4691 s390_stg (code, s390_r13, 0, s390_r2, 0);
4692
4693 /*---------------------------------------------------------------*/
4694 /* Have our lmf.previous_lmf point to the last lmf */
4695 /*---------------------------------------------------------------*/
4696 s390_stg (code, s390_r0, 0, s390_r13,
4697 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4698
4699 /*---------------------------------------------------------------*/
4700 /* save method info */
4701 /*---------------------------------------------------------------*/
4702 s390_basr (code, s390_r1, 0);
4703 s390_j (code, 6);
4704 s390_llong (code, method);
4705 s390_lg (code, s390_r1, 0, s390_r1, 4);
4706 s390_stg (code, s390_r1, 0, s390_r13,
4707 G_STRUCT_OFFSET(MonoLMF, method));
4708
4709 /*---------------------------------------------------------------*/
4710 /* save the current IP */
4711 /*---------------------------------------------------------------*/
4712 s390_stg (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4713 s390_basr (code, s390_r1, 0);
4714 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4715
4716 /*---------------------------------------------------------------*/
4717 /* Save general and floating point registers */
4718 /*---------------------------------------------------------------*/
4719 s390_stmg (code, s390_r2, s390_r12, s390_r13,
4720 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4721 for (i = 0; i < 16; i++) {
4722 s390_std (code, i, 0, s390_r13,
4723 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4724 }
4725
4726 /*---------------------------------------------------------------*/
4727 /* Restore the parameter registers now that we've set up the lmf */
4728 /*---------------------------------------------------------------*/
4729 s390_lmg (code, s390_r2, s390_r6, s390_r13,
4730 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4731 }
4732
4733 if (tracing)
4734 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4735
4736 cfg->code_len = code - cfg->native_code;
4737 g_assert (cfg->code_len < cfg->code_size);
4738
4739 g_free (cinfo);
4740
4741 return code;
4742 }
4743
4744 /*========================= End of Function ========================*/
4745
4746 /*------------------------------------------------------------------*/
4747 /* */
4748 /* Name - mono_arch_emit_epilog */
4749 /* */
4750 /* Function - Emit the instructions for a function epilog. */
4751 /* */
4752 /*------------------------------------------------------------------*/
4753
4754 void
4755 mono_arch_emit_epilog (MonoCompile *cfg)
4756 {
4757 MonoMethod *method = cfg->method;
4758 int tracing = 0;
4759 guint8 *code;
4760 int max_epilog_size = 96;
4761
4762 if (cfg->method->save_lmf)
4763 max_epilog_size += 128;
4764
4765 if (mono_jit_trace_calls != NULL)
4766 max_epilog_size += 128;
4767
4768 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4769 max_epilog_size += 128;
4770
4771 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4772 cfg->code_size *= 2;
4773 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4774 mono_jit_stats.code_reallocs++;
4775 }
4776
4777 code = cfg->native_code + cfg->code_len;
4778
4779 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4780 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4781 tracing = 1;
4782 }
4783
4784 if (method->save_lmf)
4785 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4786
4787 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4788 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
4789 else
4790 code = backUpStackPtr(cfg, code);
4791
4792 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4793 s390_br (code, s390_r14);
4794
4795 cfg->code_len = code - cfg->native_code;
4796
4797 g_assert (cfg->code_len < cfg->code_size);
4798
4799 }
4800
4801 /*========================= End of Function ========================*/
4802
4803 /*------------------------------------------------------------------*/
4804 /* */
4805 /* Name - mono_arch_emit_exceptions */
4806 /* */
4807 /* Function - Emit the blocks to handle exception conditions. */
4808 /* */
4809 /*------------------------------------------------------------------*/
4810
4811 void
4812 mono_arch_emit_exceptions (MonoCompile *cfg)
4813 {
4814 MonoJumpInfo *patch_info;
4815 guint8 *code;
4816 int nThrows = 0,
4817 exc_count = 0,
4818 iExc;
4819 guint32 code_size;
4820 MonoClass *exc_classes [MAX_EXC];
4821 guint8 *exc_throw_start [MAX_EXC],
4822 *exc_throw_end [MAX_EXC];
4823
4824 for (patch_info = cfg->patch_info;
4825 patch_info;
4826 patch_info = patch_info->next) {
4827 if (patch_info->type == MONO_PATCH_INFO_EXC)
4828 exc_count++;
4829 }
4830
4831 code_size = exc_count * 48;
4832
4833 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4834 cfg->code_size *= 2;
4835 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4836 mono_jit_stats.code_reallocs++;
4837 }
4838
4839 code = cfg->native_code + cfg->code_len;
4840
4841 /*---------------------------------------------------------------------*/
4842 /* Add code to raise exceptions */
4843 /*---------------------------------------------------------------------*/
4844 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4845 switch (patch_info->type) {
4846 case MONO_PATCH_INFO_EXC: {
4847 guint8 *ip = patch_info->ip.i + cfg->native_code;
4848 MonoClass *exc_class;
4849 guint64 throw_ip;
4850
4851 /*-----------------------------------------------------*/
4852 /* Patch the branch in epilog to come here */
4853 /*-----------------------------------------------------*/
4854 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
4855
4856 exc_class = mono_class_from_name (mono_defaults.corlib,
4857 "System",
4858 patch_info->data.name);
4859 g_assert (exc_class);
4860 throw_ip = patch_info->ip.i;
4861
4862 for (iExc = 0; iExc < nThrows; ++iExc)
4863 if (exc_classes [iExc] == exc_class)
4864 break;
4865
4866 if (iExc < nThrows) {
4867 s390_jcl (code, S390_CC_UN,
4868 (guint64) exc_throw_start [iExc]);
4869 patch_info->type = MONO_PATCH_INFO_NONE;
4870 } else {
4871
4872 if (nThrows < MAX_EXC) {
4873 exc_classes [nThrows] = exc_class;
4874 exc_throw_start [nThrows] = code;
4875 }
4876
4877 /*---------------------------------------------*/
4878 /* Patch the parameter passed to the handler */
4879 /*---------------------------------------------*/
4880 s390_basr (code, s390_r13, 0);
4881 s390_j (code, 6);
4882 s390_llong(code, patch_info->data.target);
4883 /*---------------------------------------------*/
4884 /* Load return address & parameter register */
4885 /*---------------------------------------------*/
4886 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
4887 cfg->native_code + 8), code));
4888 s390_lg (code, s390_r2, 0, s390_r13, 4);
4889 /*---------------------------------------------*/
4890 /* Reuse the current patch to set the jump */
4891 /*---------------------------------------------*/
4892 s390_basr (code, s390_r13, 0);
4893 s390_j (code, 6);
4894 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4895 patch_info->data.name = "mono_arch_throw_exception_by_name";
4896 patch_info->ip.i = code - cfg->native_code;
4897 s390_llong(code, 0);
4898 s390_lg (code, s390_r1, 0, s390_r13, 4);
4899 s390_br (code, s390_r1);
4900 }
4901 break;
4902 }
4903 default:
4904 /* do nothing */
4905 break;
4906 }
4907 }
4908
4909 cfg->code_len = code - cfg->native_code;
4910
4911 g_assert (cfg->code_len < cfg->code_size);
4912
4913 }
4914
4915 /*========================= End of Function ========================*/
4916
4917 /*------------------------------------------------------------------*/
4918 /* */
4919 /* Name - mono_arch_setup_jit_tls_data */
4920 /* */
4921 /* Function - Setup the JIT's Thread Level Specific Data. */
4922 /* */
4923 /*------------------------------------------------------------------*/
4924
4925 void
4926 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4927 {
4928 if (!tls_offset_inited) {
4929 tls_offset_inited = TRUE;
4930
4931 #if HAVE_KW_THREAD
4932 # if 0
4933 __asm__ ("\tear\t%r1,0\n"
4934 "\tlr\t%0,%3\n"
4935 "\tsr\t%0,%r1\n"
4936 "\tlr\t%1,%4\n"
4937 "\tsr\t%1,%r1\n"
4938 "\tlr\t%2,%5\n"
4939 "\tsr\t%2,%r1\n"
4940 : "=r" (appdomain_tls_offset),
4941 "=r" (thread_tls_offset),
4942 "=r" (lmf_tls_offset)
4943 : "r" (&tls_appdomain),
4944 "r" (&tls_current_object),
4945 "r" (&mono_lmf_addr)
4946 : "1", "cc");
4947 # endif
4948 #endif
4949 }
4950
4951 if (!lmf_addr_key_inited) {
4952 lmf_addr_key_inited = TRUE;
4953 pthread_key_create (&lmf_addr_key, NULL);
4954 }
4955 pthread_setspecific (lmf_addr_key, &tls->lmf);
4956
4957 }
4958
4959 /*========================= End of Function ========================*/
4960
4961 /*------------------------------------------------------------------*/
4962 /* */
4963 /* Name - mono_arch_free_jit_tls_data */
4964 /* */
4965 /* Function - Free tls data. */
4966 /* */
4967 /*------------------------------------------------------------------*/
4968
4969 void
4970 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4971 {
4972
4973 }
4974
4975 /*========================= End of Function ========================*/
4976
4977 /*------------------------------------------------------------------*/
4978 /* */
4979 /* Name - mono_arch_emit_this_vret_args */
4980 /* */
4981 /* Function - */
4982 /* */
4983 /*------------------------------------------------------------------*/
4984
4985 void
4986 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
4987 {
4988 int this_dreg = s390_r2;
4989
4990 if (vt_reg != -1)
4991 this_dreg = s390_r3;
4992
4993 /* add the this argument */
4994 if (this_reg != -1) {
4995 MonoInst *this;
4996 MONO_INST_NEW (cfg, this, OP_SETREG);
4997 this->type = this_type;
4998 this->sreg1 = this_reg;
4999 this->dreg = mono_regstate_next_int (cfg->rs);
5000 mono_bblock_add_inst (cfg->cbb, this);
5001 mono_call_inst_add_outarg_reg (cfg, inst, this->dreg, this_dreg, FALSE);
5002 }
5003
5004 if (vt_reg != -1) {
5005 MonoInst *vtarg;
5006 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
5007 vtarg->type = STACK_MP;
5008 vtarg->sreg1 = vt_reg;
5009 vtarg->dreg = mono_regstate_next_int (cfg->rs);
5010 mono_bblock_add_inst (cfg->cbb, vtarg);
5011 mono_call_inst_add_outarg_reg (cfg, inst, vtarg->dreg, s390_r2, FALSE);
5012 }
5013 }
5014
5015 /*========================= End of Function ========================*/
5016
5017 /*------------------------------------------------------------------*/
5018 /* */
5019 /* Name - mono_arch_get_inst_for_method */
5020 /* */
5021 /* Function - Check for opcodes we can handle directly in */
5022 /* hardware. */
5023 /* */
5024 /*------------------------------------------------------------------*/
5025
5026 MonoInst*
5027 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
5028 MonoMethodSignature *fsig, MonoInst **args)
5029 {
5030 MonoInst *ins = NULL;
5031
5032 if (cmethod->klass == mono_defaults.math_class) {
5033 if (strcmp (cmethod->name, "Sqrt") == 0) {
5034 MONO_INST_NEW (cfg, ins, OP_SQRT);
5035 ins->inst_i0 = args [0];
5036 }
5037 // if (strcmp (cmethod->name, "Abs") == 0) {
5038 // MONO_INST_NEW (cfg, ins, OP_ABS);
5039 // ins->inst_i0 = args [0];
5040 // }
5041 } else if (cmethod->klass == mono_defaults.thread_class &&
5042 strcmp (cmethod->name, "MemoryBarrier") == 0) {
5043 MONO_INST_NEW (cfg, ins, OP_MEMORY_BARRIER);
5044 } else if(cmethod->klass->image == mono_defaults.corlib &&
5045 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
5046 (strcmp (cmethod->klass->name, "Interlocked") == 0)) {
5047
5048 if (strcmp (cmethod->name, "Increment") == 0) {
5049 MonoInst *ins_iconst;
5050 guint32 opcode = 0;
5051
5052 if (fsig->params [0]->type == MONO_TYPE_I4)
5053 opcode = OP_ATOMIC_ADD_NEW_I4;
5054 else if (fsig->params [0]->type == MONO_TYPE_I8)
5055 opcode = OP_ATOMIC_ADD_NEW_I8;
5056 else
5057 g_assert_not_reached ();
5058
5059 MONO_INST_NEW (cfg, ins, opcode);
5060 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5061 ins_iconst->inst_c0 = 1;
5062
5063 ins->inst_i0 = args [0];
5064 ins->inst_i1 = ins_iconst;
5065 } else if (strcmp (cmethod->name, "Decrement") == 0) {
5066 MonoInst *ins_iconst;
5067 guint32 opcode = 0;
5068
5069 if (fsig->params [0]->type == MONO_TYPE_I4)
5070 opcode = OP_ATOMIC_ADD_NEW_I4;
5071 else if (fsig->params [0]->type == MONO_TYPE_I8)
5072 opcode = OP_ATOMIC_ADD_NEW_I8;
5073 else
5074 g_assert_not_reached ();
5075 MONO_INST_NEW (cfg, ins, opcode);
5076 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5077 ins_iconst->inst_c0 = -1;
5078
5079 ins->inst_i0 = args [0];
5080 ins->inst_i1 = ins_iconst;
5081 /* FIXME: */
5082 } else if (strcmp (cmethod->name, "Exchange") == 0) {
5083 guint32 opcode = 0;
5084
5085 if (fsig->params [0]->type == MONO_TYPE_I4)
5086 opcode = OP_ATOMIC_EXCHANGE_I4;
5087 else if ((fsig->params [0]->type == MONO_TYPE_I8) ||
5088 (fsig->params [0]->type == MONO_TYPE_I) ||
5089 (fsig->params [0]->type == MONO_TYPE_OBJECT))
5090 opcode = OP_ATOMIC_EXCHANGE_I8;
5091 else
5092 return NULL;
5093
5094 MONO_INST_NEW (cfg, ins, opcode);
5095
5096 ins->inst_i0 = args [0];
5097 ins->inst_i1 = args [1];
5098 } else if (strcmp (cmethod->name, "Add") == 0) {
5099 guint32 opcode = 0;
5100
5101 if (fsig->params [0]->type == MONO_TYPE_I4)
5102 opcode = OP_ATOMIC_ADD_I4;
5103 else if (fsig->params [0]->type == MONO_TYPE_I8)
5104 opcode = OP_ATOMIC_ADD_I8;
5105 else
5106 g_assert_not_reached ();
5107
5108 MONO_INST_NEW (cfg, ins, opcode);
5109
5110 ins->inst_i0 = args [0];
5111 ins->inst_i1 = args [1];
5112 } else if ((strcmp (cmethod->name, "Read") == 0 &&
5113 (fsig->params [0]->type == MONO_TYPE_I8))) {
5114 MONO_INST_NEW (cfg, ins, CEE_LDIND_I8);
5115 ins->inst_i0 = args [0];
5116 }
5117 }
5118 return ins;
5119 }
5120
5121 /*========================= End of Function ========================*/
5122
5123 /*------------------------------------------------------------------*/
5124 /* */
5125 /* Name - mono_arch_print_tree */
5126 /* */
5127 /* Function - Print platform-specific opcode details. */
5128 /* */
5129 /* Returns - 1 - opcode details have been printed */
5130 /* 0 - opcode details have not been printed */
5131 /* */
5132 /*------------------------------------------------------------------*/
5133
5134 gboolean
5135 mono_arch_print_tree (MonoInst *tree, int arity)
5136 {
5137 gboolean done;
5138
5139 switch (tree->opcode) {
5140 case OP_S390_LOADARG:
5141 case OP_S390_ARGREG:
5142 case OP_S390_ARGPTR:
5143 printf ("[0x%lx(%s)]", tree->inst_offset,
5144 mono_arch_regname (tree->inst_basereg));
5145 done = 1;
5146 break;
5147 case OP_S390_STKARG:
5148 printf ("[0x%lx(previous_frame)]",
5149 tree->inst_offset);
5150 done = 1;
5151 break;
5152 case OP_S390_MOVE:
5153 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5154 tree->inst_offset, tree->backend.size,
5155 mono_arch_regname(tree->dreg),
5156 tree->inst_imm,
5157 mono_arch_regname(tree->sreg1));
5158 done = 1;
5159 break;
5160 case OP_S390_SETF4RET:
5161 printf ("[f%s,f%s]",
5162 mono_arch_regname (tree->dreg),
5163 mono_arch_regname (tree->sreg1));
5164 done = 1;
5165 break;
5166 case OP_TLS_GET:
5167 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5168 tree->inst_imm,
5169 mono_arch_regname (tree->sreg1));
5170 done = 1;
5171 break;
5172 case OP_S390_BKCHAIN:
5173 printf ("[previous_frame(%s)]",
5174 mono_arch_regname (tree->sreg1));
5175 done = 1;
5176 default:
5177 done = 0;
5178 }
5179 return (done);
5180 }
5181
5182 /*========================= End of Function ========================*/
5183
5184 /*------------------------------------------------------------------*/
5185 /* */
5186 /* Name - mono_arch_regalloc_cost */
5187 /* */
5188 /* Function - Determine the cost, in the number of memory */
5189 /* references, of the action of allocating the var- */
5190 /* iable VMV into a register during global register */
5191 /* allocation. */
5192 /* */
5193 /* Returns - Cost */
5194 /* */
5195 /*------------------------------------------------------------------*/
5196
5197 guint32
5198 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5199 {
5200 /* FIXME: */
5201 return 2;
5202 }
5203
5204 /*========================= End of Function ========================*/
5205
5206 /*------------------------------------------------------------------*/
5207 /* */
5208 /* Name - mono_arch_get_domain_intrinsic */
5209 /* */
5210 /* Function - */
5211 /* */
5212 /* Returns - */
5213 /* */
5214 /*------------------------------------------------------------------*/
5215
5216 MonoInst *
5217 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5218 {
5219 MonoInst *ins;
5220
5221 if (appdomain_tls_offset == -1)
5222 return NULL;
5223
5224 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5225 ins->inst_offset = appdomain_tls_offset;
5226 return (ins);
5227 }
5228
5229 /*========================= End of Function ========================*/
5230
5231 /*------------------------------------------------------------------*/
5232 /* */
5233 /* Name - mono_arch_get_thread_intrinsic */
5234 /* */
5235 /* Function - */
5236 /* */
5237 /* Returns - */
5238 /* */
5239 /*------------------------------------------------------------------*/
5240
5241 MonoInst *
5242 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5243 {
5244 MonoInst *ins;
5245
5246 if (thread_tls_offset == -1)
5247 return NULL;
5248
5249 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5250 ins->inst_offset = thread_tls_offset;
5251 return (ins);
5252 }
5253
5254 /*========================= End of Function ========================*/
5255
5256 /*------------------------------------------------------------------*/
5257 /* */
5258 /* Name - mono_arch_flush_register_windows */
5259 /* */
5260 /* Function - */
5261 /* */
5262 /* Returns - */
5263 /* */
5264 /*------------------------------------------------------------------*/
5265
5266 void
5267 mono_arch_flush_register_windows (void)
5268 {
5269 }
5270
5271 /*========================= End of Function ========================*/
5272
5273 /*------------------------------------------------------------------*/
5274 /* */
5275 /* Name - mono_arch_get_lmf_addr */
5276 /* */
5277 /* Function - */
5278 /* */
5279 /* Returns - */
5280 /* */
5281 /*------------------------------------------------------------------*/
5282
5283 gpointer
5284 mono_arch_get_lmf_addr (void)
5285 {
5286 return pthread_getspecific (lmf_addr_key);
5287 }
5288
5289 /*========================= End of Function ========================*/
5290
5291 /*------------------------------------------------------------------*/
5292 /* */
5293 /* Name - mono_arch_is_inst_imm */
5294 /* */
5295 /* Function - Determine if operand qualifies as an immediate */
5296 /* value. For s390 this is a value -32768-32768 */
5297 /* */
5298 /* Returns - True|False - is [not] immediate value. */
5299 /* */
5300 /*------------------------------------------------------------------*/
5301
5302 gboolean
5303 mono_arch_is_inst_imm (gint64 imm)
5304 {
5305 return s390_is_imm16 (imm);
5306 }
5307
5308 /*========================= End of Function ========================*/
5309
5310 /*------------------------------------------------------------------*/
5311 /* */
5312 /* Name - opcode_to_cond */
5313 /* */
5314 /* Function - Simplify the branch on condition opcode from */
5315 /* more than 20 to just a handful for easy manipu- */
5316 /* lation within the instruction emitting code. */
5317 /* */
5318 /* Returns - CMP_xxx - this simplified condition type. */
5319 /* */
5320 /*------------------------------------------------------------------*/
5321
5322 static CompRelation
5323 opcode_to_cond (int opcode)
5324 {
5325 switch (opcode) {
5326 case CEE_BEQ:
5327 case OP_CEQ:
5328 case OP_IBEQ:
5329 case OP_ICEQ:
5330 case OP_FBEQ:
5331 case OP_FCEQ:
5332 case OP_COND_EXC_EQ:
5333 return CMP_EQ;
5334 case CEE_BNE_UN:
5335 case OP_COND_EXC_NE_UN:
5336 case OP_IBNE_UN:
5337 case OP_FBNE_UN:
5338 return CMP_NE;
5339 case CEE_BLE:
5340 case OP_IBLE:
5341 case OP_FBLE:
5342 return CMP_LE;
5343 case CEE_BGE:
5344 case OP_IBGE:
5345 case OP_FBGE:
5346 return CMP_GE;
5347 case CEE_BLT:
5348 case OP_COND_EXC_LT:
5349 case OP_CLT:
5350 case OP_IBLT:
5351 case OP_ICLT:
5352 case OP_FBLT:
5353 case OP_FCLT:
5354 return CMP_LT;
5355 case CEE_BGT:
5356 case OP_COND_EXC_GT:
5357 case OP_CGT:
5358 case OP_IBGT:
5359 case OP_ICGT:
5360 case OP_FBGT:
5361 case OP_FCGT:
5362 return CMP_GT;
5363
5364 case CEE_BLE_UN:
5365 case OP_COND_EXC_LE_UN:
5366 case OP_IBLE_UN:
5367 case OP_FBLE_UN:
5368 return CMP_LE_UN;
5369 case CEE_BGE_UN:
5370 case OP_IBGE_UN:
5371 case OP_FBGE_UN:
5372 return CMP_GE_UN;
5373 case CEE_BLT_UN:
5374 case OP_CLT_UN:
5375 case OP_IBLT_UN:
5376 case OP_ICLT_UN:
5377 case OP_FBLT_UN:
5378 case OP_FCLT_UN:
5379 case OP_COND_EXC_LT_UN:
5380 return CMP_LT_UN;
5381 case CEE_BGT_UN:
5382 case OP_COND_EXC_GT_UN:
5383 case OP_CGT_UN:
5384 case OP_IBGT_UN:
5385 case OP_ICGT_UN:
5386 case OP_FCGT_UN:
5387 case OP_FBGT_UN:
5388 return CMP_GT_UN;
5389 default:
5390 printf ("%s\n", mono_inst_name (opcode));
5391 g_error("Not implemented\n");
5392 }
5393 return CMP_EQ;
5394 }
5395
5396 /*========================= End of Function ========================*/
5397
5398 /*------------------------------------------------------------------*/
5399 /* */
5400 /* Name - mono_arch_get_patch_offset */
5401 /* */
5402 /* Function - Dummy entry point until s390x supports aot. */
5403 /* */
5404 /* Returns - Offset for patch. */
5405 /* */
5406 /*------------------------------------------------------------------*/
5407
5408 guint32
5409 mono_arch_get_patch_offset (guint8 *code)
5410 {
5411 return 0;
5412 }
5413
5414 /*========================= End of Function ========================*/
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