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* mini-s390.c, mini-s390x.c: Fix VARARG case processing with 0
[mono.git] / mono / mini / mini-s390x.c
blob7244e9aef0a8478cc26062a34036b539c64c98bc
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 return TRUE;
1125 case MONO_TYPE_OBJECT:
1126 case MONO_TYPE_STRING:
1127 case MONO_TYPE_CLASS:
1128 case MONO_TYPE_SZARRAY:
1129 case MONO_TYPE_ARRAY:
1130 return FALSE;
1131 case MONO_TYPE_VALUETYPE:
1132 if (t->data.klass->enumtype)
1133 return is_regsize_var (t->data.klass->enum_basetype);
1134 return FALSE;
1135 }
1136 return FALSE;
1137 }
1138
1139 /*========================= End of Function ========================*/
1140
1141 /*------------------------------------------------------------------*/
1142 /* */
1143 /* Name - mono_arch_get_allocatable_int_vars */
1144 /* */
1145 /* Function - */
1146 /* */
1147 /*------------------------------------------------------------------*/
1148
1149 GList *
1150 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1151 {
1152 GList *vars = NULL;
1153 int i;
1154
1155 for (i = 0; i < cfg->num_varinfo; i++) {
1156 MonoInst *ins = cfg->varinfo [i];
1157 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1158
1159 /* unused vars */
1160 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1161 continue;
1162
1163 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1164 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1165 continue;
1166
1167 /* we can only allocate 32 bit values */
1168 if (is_regsize_var (ins->inst_vtype)) {
1169 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1170 g_assert (i == vmv->idx);
1171 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1172 }
1173 }
1174
1175 return vars;
1176 }
1177
1178 /*========================= End of Function ========================*/
1179
1180 /*------------------------------------------------------------------*/
1181 /* */
1182 /* Name - mono_arch_global_int_regs */
1183 /* */
1184 /* Function - Return a list of usable integer registers. */
1185 /* */
1186 /*------------------------------------------------------------------*/
1187
1188 GList *
1189 mono_arch_get_global_int_regs (MonoCompile *cfg)
1190 {
1191 GList *regs = NULL;
1192 MonoMethodHeader *header;
1193 int i, top = 13;
1194
1195 header = mono_method_get_header (cfg->method);
1196 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1197 cfg->frame_reg = s390_r11;
1198
1199 for (i = 8; i < top; ++i) {
1200 if (cfg->frame_reg != i)
1201 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1202 }
1203
1204 return regs;
1205 }
1206
1207 /*========================= End of Function ========================*/
1208
1209 /*------------------------------------------------------------------*/
1210 /* */
1211 /* Name - mono_arch_flush_icache */
1212 /* */
1213 /* Function - Flush the CPU icache. */
1214 /* */
1215 /*------------------------------------------------------------------*/
1216
1217 void
1218 mono_arch_flush_icache (guint8 *code, gint size)
1219 {
1220 }
1221
1222 /*========================= End of Function ========================*/
1223
1224 /*------------------------------------------------------------------*/
1225 /* */
1226 /* Name - add_general */
1227 /* */
1228 /* Function - Determine code and stack size incremements for a */
1229 /* parameter. */
1230 /* */
1231 /*------------------------------------------------------------------*/
1232
1233 static void inline
1234 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1235 {
1236 if (*gr > S390_LAST_ARG_REG) {
1237 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1238 ainfo->offset = sz->stack_size;
1239 ainfo->reg = STK_BASE;
1240 ainfo->regtype = RegTypeBase;
1241 sz->stack_size += sizeof(long);
1242 sz->local_size += sizeof(long);
1243 sz->offStruct += sizeof(long);
1244 sz->code_size += 12;
1245 } else {
1246 ainfo->reg = *gr;
1247 sz->code_size += 8;
1248 }
1249 (*gr) ++;
1250 }
1251
1252 /*========================= End of Function ========================*/
1253
1254 /*------------------------------------------------------------------*/
1255 /* */
1256 /* Name - add_stackParm */
1257 /* */
1258 /* Function - Determine code and stack size incremements for a */
1259 /* parameter. */
1260 /* */
1261 /*------------------------------------------------------------------*/
1262
1263 static void inline
1264 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1265 {
1266 if (*gr > S390_LAST_ARG_REG) {
1267 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1268 ainfo->reg = STK_BASE;
1269 sz->stack_size += sizeof(gpointer);
1270 sz->offStruct += sizeof(gpointer);
1271 } else {
1272 ainfo->reg = *gr;
1273 }
1274 (*gr) ++;
1275 ainfo->offset = sz->stack_size;
1276 ainfo->offparm = sz->offset;
1277 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1278 ainfo->size = size;
1279 ainfo->regtype = RegTypeStructByAddr;
1280 ainfo->vtsize = size;
1281 sz->parm_size += size;
1282 }
1283
1284 /*========================= End of Function ========================*/
1285
1286 /*------------------------------------------------------------------*/
1287 /* */
1288 /* Name - add_float */
1289 /* */
1290 /* Function - Determine code and stack size incremements for a */
1291 /* float parameter. */
1292 /* */
1293 /*------------------------------------------------------------------*/
1294
1295 static void inline
1296 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1297 {
1298 if ((*fr) <= S390_LAST_FPARG_REG) {
1299 ainfo->regtype = RegTypeFP;
1300 ainfo->reg = *fr;
1301 sz->code_size += 4;
1302 (*fr) += 2;
1303 }
1304 else {
1305 ainfo->offset = sz->stack_size;
1306 ainfo->reg = STK_BASE;
1307 ainfo->regtype = RegTypeBase;
1308 sz->code_size += 4;
1309 sz->stack_size += sizeof(double);
1310 sz->local_size += sizeof(double);
1311 sz->offStruct += sizeof(double);
1312 }
1313 }
1314
1315 /*========================= End of Function ========================*/
1316
1317 /*------------------------------------------------------------------*/
1318 /* */
1319 /* Name - calculate_sizes */
1320 /* */
1321 /* Function - Determine the amount of space required for code */
1322 /* and stack. In addition determine starting points */
1323 /* for stack-based parameters, and area for struct- */
1324 /* ures being returned on the stack. */
1325 /* */
1326 /*------------------------------------------------------------------*/
1327
1328 static CallInfo *
1329 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1330 gboolean string_ctor)
1331 {
1332 guint i, fr, gr, size;
1333 int nParm = sig->hasthis + sig->param_count;
1334 guint32 simpletype, align;
1335 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1336
1337 fr = 0;
1338 gr = s390_r2;
1339 nParm = 0;
1340 cinfo->struct_ret = 0;
1341 sz->retStruct = 0;
1342 sz->offset = 0;
1343 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1344 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1345 sz->code_size = 0;
1346 sz->parm_size = 0;
1347 sz->local_size = 0;
1348
1349 /*----------------------------------------------------------*/
1350 /* We determine the size of the return code/stack in case we*/
1351 /* need to reserve a register to be used to address a stack */
1352 /* area that the callee will use. */
1353 /*----------------------------------------------------------*/
1354
1355 simpletype = mono_type_get_underlying_type (sig->ret)->type;
1356 enum_retvalue:
1357 switch (simpletype) {
1358 case MONO_TYPE_BOOLEAN:
1359 case MONO_TYPE_I1:
1360 case MONO_TYPE_U1:
1361 case MONO_TYPE_I2:
1362 case MONO_TYPE_U2:
1363 case MONO_TYPE_CHAR:
1364 case MONO_TYPE_I4:
1365 case MONO_TYPE_U4:
1366 case MONO_TYPE_I:
1367 case MONO_TYPE_U:
1368 case MONO_TYPE_CLASS:
1369 case MONO_TYPE_OBJECT:
1370 case MONO_TYPE_SZARRAY:
1371 case MONO_TYPE_ARRAY:
1372 case MONO_TYPE_PTR:
1373 case MONO_TYPE_FNPTR:
1374 case MONO_TYPE_STRING:
1375 cinfo->ret.reg = s390_r2;
1376 sz->code_size += 4;
1377 break;
1378 case MONO_TYPE_R4:
1379 case MONO_TYPE_R8:
1380 cinfo->ret.reg = s390_f0;
1381 sz->code_size += 4;
1382 break;
1383 case MONO_TYPE_I8:
1384 case MONO_TYPE_U8:
1385 cinfo->ret.reg = s390_r2;
1386 sz->code_size += 4;
1387 break;
1388 case MONO_TYPE_GENERICINST:
1389 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1390 cinfo->ret.reg = s390_r2;
1391 sz->code_size += 4;
1392 break;
1393 }
1394 /* Fall through */
1395 case MONO_TYPE_VALUETYPE: {
1396 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1397 if (sig->ret->data.klass->enumtype) {
1398 simpletype = sig->ret->data.klass->enum_basetype->type;
1399 goto enum_retvalue;
1400 }
1401 if (sig->pinvoke)
1402 size = mono_class_native_size (klass, &align);
1403 else
1404 size = mono_class_value_size (klass, &align);
1405
1406 cinfo->ret.reg = s390_r2;
1407 cinfo->struct_ret = 1;
1408 cinfo->ret.size = size;
1409 cinfo->ret.vtsize = size;
1410 gr++;
1411 break;
1412 }
1413 case MONO_TYPE_TYPEDBYREF:
1414 size = sizeof (MonoTypedRef);
1415 cinfo->ret.reg = s390_r2;
1416 cinfo->struct_ret = 1;
1417 cinfo->ret.size = size;
1418 cinfo->ret.vtsize = size;
1419 gr++;
1420 break;
1421 case MONO_TYPE_VOID:
1422 break;
1423 default:
1424 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1425 }
1426
1427 if (sig->hasthis) {
1428 cinfo->args[nParm].size = sizeof(gpointer);
1429 add_general (&gr, sz, cinfo->args+nParm);
1430 nParm++;
1431 }
1432
1433 /*----------------------------------------------------------*/
1434 /* We determine the size of the parameter code and stack */
1435 /* requirements by checking the types and sizes of the */
1436 /* parameters. */
1437 /*----------------------------------------------------------*/
1438
1439 for (i = 0; i < sig->param_count; ++i) {
1440 /*--------------------------------------------------*/
1441 /* Handle vararg type calls. All args are put on */
1442 /* the stack. */
1443 /*--------------------------------------------------*/
1444 if ((sig->call_convention == MONO_CALL_VARARG) &&
1445 (i == sig->sentinelpos)) {
1446 gr = S390_LAST_ARG_REG + 1;
1447 add_general (&gr, sz, &cinfo->sigCookie);
1448 }
1449
1450 if (sig->params [i]->byref) {
1451 add_general (&gr, sz, cinfo->args+nParm);
1452 cinfo->args[nParm].size = sizeof(gpointer);
1453 nParm++;
1454 continue;
1455 }
1456
1457 simpletype = mono_type_get_underlying_type(sig->params [i])->type;
1458 cinfo->args[nParm].type = simpletype;
1459 switch (simpletype) {
1460 case MONO_TYPE_BOOLEAN:
1461 case MONO_TYPE_I1:
1462 case MONO_TYPE_U1:
1463 cinfo->args[nParm].size = sizeof(char);
1464 add_general (&gr, sz, cinfo->args+nParm);
1465 nParm++;
1466 break;
1467 case MONO_TYPE_I2:
1468 case MONO_TYPE_U2:
1469 case MONO_TYPE_CHAR:
1470 cinfo->args[nParm].size = sizeof(short);
1471 add_general (&gr, sz, cinfo->args+nParm);
1472 nParm++;
1473 break;
1474 case MONO_TYPE_I4:
1475 case MONO_TYPE_U4:
1476 cinfo->args[nParm].size = sizeof(int);
1477 add_general (&gr, sz, cinfo->args+nParm);
1478 nParm++;
1479 break;
1480 case MONO_TYPE_I:
1481 case MONO_TYPE_U:
1482 case MONO_TYPE_PTR:
1483 case MONO_TYPE_FNPTR:
1484 case MONO_TYPE_CLASS:
1485 case MONO_TYPE_OBJECT:
1486 case MONO_TYPE_STRING:
1487 case MONO_TYPE_SZARRAY:
1488 case MONO_TYPE_ARRAY:
1489 cinfo->args[nParm].size = sizeof(gpointer);
1490 add_general (&gr, sz, cinfo->args+nParm);
1491 nParm++;
1492 break;
1493 case MONO_TYPE_I8:
1494 case MONO_TYPE_U8:
1495 cinfo->args[nParm].size = sizeof(long long);
1496 add_general (&gr, sz, cinfo->args+nParm);
1497 nParm++;
1498 break;
1499 case MONO_TYPE_R4:
1500 cinfo->args[nParm].size = sizeof(float);
1501 add_float (&fr, sz, cinfo->args+nParm);
1502 nParm++;
1503 break;
1504 case MONO_TYPE_R8:
1505 cinfo->args[nParm].size = sizeof(double);
1506 add_float (&fr, sz, cinfo->args+nParm);
1507 nParm++;
1508 break;
1509 case MONO_TYPE_GENERICINST:
1510 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1511 cinfo->args[nParm].size = sizeof(gpointer);
1512 add_general (&gr, sz, cinfo->args+nParm);
1513 nParm++;
1514 break;
1515 }
1516 /* Fall through */
1517 case MONO_TYPE_VALUETYPE: {
1518 MonoMarshalType *info;
1519 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1520 if (sig->pinvoke)
1521 size = mono_class_native_size (klass, &align);
1522 else
1523 size = mono_class_value_size (klass, &align);
1524
1525 info = mono_marshal_load_type_info (klass);
1526
1527 if ((info->native_size == sizeof(float)) &&
1528 (info->num_fields == 1) &&
1529 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1530 cinfo->args[nParm].size = sizeof(float);
1531 add_float(&fr, sz, cinfo->args+nParm);
1532 break;
1533 }
1534
1535 if ((info->native_size == sizeof(double)) &&
1536 (info->num_fields == 1) &&
1537 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1538 cinfo->args[nParm].size = sizeof(double);
1539 add_float(&fr, sz, cinfo->args+nParm);
1540 break;
1541 }
1542
1543 cinfo->args[nParm].vtsize = 0;
1544 cinfo->args[nParm].size = 0;
1545
1546 switch (size) {
1547 /*----------------------------------*/
1548 /* On S/390, structures of size 1, */
1549 /* 2, 4, and 8 bytes are passed in */
1550 /* (a) register(s). */
1551 /*----------------------------------*/
1552 case 0:
1553 case 1:
1554 case 2:
1555 case 4:
1556 case 8:
1557 add_general(&gr, sz, cinfo->args+nParm);
1558 cinfo->args[nParm].size = size;
1559 cinfo->args[nParm].regtype = RegTypeStructByVal;
1560 nParm++;
1561 sz->local_size += sizeof(long);
1562 break;
1563 default:
1564 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1565 nParm++;
1566 }
1567 }
1568 break;
1569 case MONO_TYPE_TYPEDBYREF: {
1570 int size = sizeof (MonoTypedRef);
1571
1572 cinfo->args[nParm].vtsize = 0;
1573 cinfo->args[nParm].size = 0;
1574
1575 switch (size) {
1576 /*----------------------------------*/
1577 /* On S/390, structures of size 1, */
1578 /* 2, 4, and 8 bytes are passed in */
1579 /* (a) register(s). */
1580 /*----------------------------------*/
1581 case 0:
1582 case 1:
1583 case 2:
1584 case 4:
1585 case 8:
1586 add_general(&gr, sz, cinfo->args+nParm);
1587 cinfo->args[nParm].size = size;
1588 cinfo->args[nParm].regtype = RegTypeStructByVal;
1589 nParm++;
1590 sz->local_size += sizeof(long);
1591 break;
1592 default:
1593 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1594 nParm++;
1595 }
1596 }
1597 break;
1598 default:
1599 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1600 }
1601 }
1602
1603 /*----------------------------------------------------------*/
1604 /* Handle the case where there are no implicit arguments */
1605 /*----------------------------------------------------------*/
1606 if ((sig->call_convention == MONO_CALL_VARARG) &&
1607 (sig->param_count == sig->sentinelpos)) {
1608 gr = S390_LAST_ARG_REG + 1;
1609 add_general (&gr, sz, &cinfo->sigCookie);
1610 }
1611
1612 /*----------------------------------------------------------*/
1613 /* If we are passing a structure back then if it won't be */
1614 /* in a register(s) then we make room at the end of the */
1615 /* parameters that may have been placed on the stack */
1616 /*----------------------------------------------------------*/
1617 if (cinfo->struct_ret) {
1618 cinfo->ret.offset = sz->stack_size;
1619 switch (cinfo->ret.size) {
1620 case 0:
1621 case 1:
1622 case 2:
1623 case 4:
1624 case 8:
1625 break;
1626 default:
1627 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1628 }
1629 }
1630
1631 cinfo->lastgr = gr;
1632 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1633 sz->offset;
1634 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1635
1636 return (cinfo);
1637 }
1638
1639 /*========================= End of Function ========================*/
1640
1641 /*------------------------------------------------------------------*/
1642 /* */
1643 /* Name - mono_arch_allocate_vars */
1644 /* */
1645 /* Function - Set var information according to the calling */
1646 /* convention for S/390. The local var stuff should */
1647 /* most likely be split in another method. */
1648 /* */
1649 /* Parameter - @m - Compile unit. */
1650 /* */
1651 /*------------------------------------------------------------------*/
1652
1653 void
1654 mono_arch_allocate_vars (MonoCompile *cfg)
1655 {
1656 MonoMethodSignature *sig;
1657 MonoMethodHeader *header;
1658 MonoInst *inst;
1659 CallInfo *cinfo;
1660 size_data sz;
1661 int iParm, iVar, offset, size, align, curinst;
1662 int frame_reg = STK_BASE;
1663 int sArg, eArg;
1664
1665 header = mono_method_get_header (cfg->method);
1666
1667 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1668
1669 /*---------------------------------------------------------*/
1670 /* We use the frame register also for any method that has */
1671 /* filter clauses. This way, when the handlers are called, */
1672 /* the code will reference local variables using the frame */
1673 /* reg instead of the stack pointer: if we had to restore */
1674 /* the stack pointer, we'd corrupt the method frames that */
1675 /* are already on the stack (since filters get called */
1676 /* before stack unwinding happens) when the filter code */
1677 /* would call any method. */
1678 /*---------------------------------------------------------*/
1679 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1680 frame_reg = s390_r11;
1681
1682 cfg->frame_reg = frame_reg;
1683
1684 if (frame_reg != STK_BASE)
1685 cfg->used_int_regs |= 1 << frame_reg;
1686
1687 sig = mono_method_signature (cfg->method);
1688
1689 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1690
1691 if (cinfo->struct_ret) {
1692 cfg->ret->opcode = OP_REGVAR;
1693 cfg->ret->inst_c0 = s390_r2;
1694 } else {
1695 switch (mono_type_get_underlying_type (sig->ret)->type) {
1696 case MONO_TYPE_VOID:
1697 break;
1698 default:
1699 cfg->ret->opcode = OP_REGVAR;
1700 cfg->ret->dreg = s390_r2;
1701 break;
1702 }
1703 }
1704
1705 /*--------------------------------------------------------------*/
1706 /* local vars are at a positive offset from the stack pointer */
1707 /* also note that if the function uses alloca, we use s390_r11 */
1708 /* to point at the local variables. */
1709 /* add parameter area size for called functions */
1710 /*--------------------------------------------------------------*/
1711 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1712 cfg->sig_cookie = 0;
1713
1714 if (cinfo->struct_ret) {
1715 inst = cfg->ret;
1716 offset = S390_ALIGN(offset, sizeof(gpointer));
1717 inst->inst_offset = offset;
1718 inst->opcode = OP_REGOFFSET;
1719 inst->inst_basereg = frame_reg;
1720 offset += sizeof(gpointer);
1721 if ((sig->call_convention == MONO_CALL_VARARG) &&
1722 (!retFitsInReg (cinfo->ret.size)))
1723 cfg->sig_cookie += cinfo->ret.size;
1724 }
1725
1726 if (sig->hasthis) {
1727 inst = cfg->varinfo [0];
1728 if (inst->opcode != OP_REGVAR) {
1729 inst->opcode = OP_REGOFFSET;
1730 inst->inst_basereg = frame_reg;
1731 offset = S390_ALIGN(offset, sizeof(gpointer));
1732 inst->inst_offset = offset;
1733 offset += sizeof (gpointer);
1734 }
1735 curinst = sArg = 1;
1736 } else {
1737 curinst = sArg = 0;
1738 }
1739
1740 eArg = sig->param_count + sArg;
1741
1742 if (sig->call_convention == MONO_CALL_VARARG)
1743 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1744
1745 for (iParm = sArg; iParm < eArg; ++iParm) {
1746 inst = cfg->varinfo [curinst];
1747 if (inst->opcode != OP_REGVAR) {
1748 switch (cinfo->args[iParm].regtype) {
1749 case RegTypeStructByAddr :
1750 if (cinfo->args[iParm].reg == STK_BASE) {
1751 inst->opcode = OP_S390_LOADARG;
1752 inst->inst_basereg = frame_reg;
1753 offset = S390_ALIGN(offset, sizeof(long));
1754 inst->inst_offset = offset;
1755 size = abs(cinfo->args[iParm].vtsize);
1756 inst->unused = cinfo->args[iParm].offset;
1757 } else {
1758 inst->opcode = OP_S390_ARGREG;
1759 inst->inst_basereg = frame_reg;
1760 size = sizeof(gpointer);
1761 offset = S390_ALIGN(offset, size);
1762 inst->inst_offset = offset;
1763 inst->unused = cinfo->args[iParm].offset;
1764 }
1765 break;
1766 case RegTypeStructByVal :
1767 inst->opcode = OP_S390_ARGPTR;
1768 inst->inst_basereg = frame_reg;
1769 size = cinfo->args[iParm].size;
1770 offset = S390_ALIGN(offset, size);
1771 inst->inst_offset = offset;
1772 inst->unused = cinfo->args[iParm].offset;
1773 break;
1774 default :
1775 if (cinfo->args[iParm].reg != STK_BASE) {
1776 inst->opcode = OP_REGOFFSET;
1777 inst->inst_basereg = frame_reg;
1778 size = (cinfo->args[iParm].size < 8
1779 ? sizeof(int)
1780 : sizeof(long));
1781 offset = S390_ALIGN(offset, size);
1782 inst->inst_offset = offset;
1783 } else {
1784 inst->opcode = OP_S390_STKARG;
1785 inst->inst_basereg = frame_reg;
1786 size = ((cinfo->args[iParm].size < 8)
1787 ? 8 - cinfo->args[iParm].size
1788 : 0);
1789 inst->inst_offset = cinfo->args[iParm].offset +
1790 size;
1791 inst->unused = 0;
1792 size = sizeof(long);
1793 }
1794 }
1795 if ((sig->call_convention == MONO_CALL_VARARG) &&
1796 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1797 (iParm < sig->sentinelpos))
1798 cfg->sig_cookie += size;
1799
1800 offset += size;
1801 }
1802 curinst++;
1803 }
1804
1805 curinst = cfg->locals_start;
1806 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1807 inst = cfg->varinfo [iVar];
1808 if ((inst->flags & MONO_INST_IS_DEAD) ||
1809 (inst->opcode == OP_REGVAR))
1810 continue;
1811
1812 /*--------------------------------------------------*/
1813 /* inst->unused indicates native sized value types, */
1814 /* this is used by the pinvoke wrappers when they */
1815 /* call functions returning structure */
1816 /*--------------------------------------------------*/
1817 if (inst->unused && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1818 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1819 else
1820 size = mono_type_size (inst->inst_vtype, &align);
1821
1822 offset = S390_ALIGN(offset, align);
1823 inst->inst_offset = offset;
1824 inst->opcode = OP_REGOFFSET;
1825 inst->inst_basereg = frame_reg;
1826 offset += size;
1827 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
1828 iVar, inst->inst_offset, size));
1829 }
1830
1831 /*------------------------------------------------------*/
1832 /* Allow space for the trace method stack area if needed*/
1833 /*------------------------------------------------------*/
1834 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
1835 offset += S390_TRACE_STACK_SIZE;
1836
1837 /*------------------------------------------------------*/
1838 /* Reserve space to save LMF and caller saved registers */
1839 /*------------------------------------------------------*/
1840 if (cfg->method->save_lmf)
1841 offset += sizeof (MonoLMF);
1842
1843 /*------------------------------------------------------*/
1844 /* align the offset */
1845 /*------------------------------------------------------*/
1846 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1847
1848 }
1849
1850 /*========================= End of Function ========================*/
1851
1852 /*------------------------------------------------------------------*/
1853 /* */
1854 /* Name - mono_arch_call_opcode */
1855 /* */
1856 /* Function - Take the arguments and generate the arch-specific */
1857 /* instructions to properly call the function. This */
1858 /* includes pushing, moving argments to the correct */
1859 /* etc. */
1860 /* */
1861 /*------------------------------------------------------------------*/
1862
1863 MonoCallInst*
1864 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1865 MonoCallInst *call, int is_virtual) {
1866 MonoInst *in;
1867 MonoCallArgParm *arg;
1868 MonoMethodSignature *sig;
1869 int i, n, lParamArea;
1870 CallInfo *cinfo;
1871 ArgInfo *ainfo;
1872 size_data sz;
1873
1874 sig = call->signature;
1875 n = sig->param_count + sig->hasthis;
1876 DEBUG (g_print ("Call requires: %d parameters\n",n));
1877
1878 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1879
1880 call->stack_usage = MAX(sz.stack_size, call->stack_usage);
1881 lParamArea = MAX((call->stack_usage - S390_MINIMAL_STACK_SIZE - sz.parm_size), 0);
1882 cfg->param_area = MAX (((signed) cfg->param_area), lParamArea);
1883 cfg->flags |= MONO_CFG_HAS_CALLS;
1884
1885 if (cinfo->struct_ret)
1886 call->used_iregs |= 1 << cinfo->ret.reg;
1887
1888 for (i = 0; i < n; ++i) {
1889 ainfo = cinfo->args + i;
1890
1891 if (!(sig->pinvoke) &&
1892 (sig->call_convention == MONO_CALL_VARARG) &&
1893 (i == sig->sentinelpos)) {
1894 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
1895 }
1896
1897 if (is_virtual && i == 0) {
1898 /* the argument will be attached to the call instrucion */
1899 in = call->args [i];
1900 call->used_iregs |= 1 << ainfo->reg;
1901 } else {
1902 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG);
1903 in = call->args [i];
1904 arg->ins.cil_code = in->cil_code;
1905 arg->ins.inst_left = in;
1906 arg->ins.type = in->type;
1907
1908 /* prepend, we'll need to reverse them later */
1909 arg->ins.next = call->out_args;
1910 call->out_args = (MonoInst *) arg;
1911 arg->ins.inst_right = (MonoInst *) call;
1912 if (ainfo->regtype == RegTypeGeneral) {
1913 arg->ins.unused = ainfo->reg;
1914 call->used_iregs |= 1 << ainfo->reg;
1915 } else if (ainfo->regtype == RegTypeStructByAddr) {
1916 call->used_iregs |= 1 << ainfo->reg;
1917 arg->ins.sreg1 = ainfo->reg;
1918 arg->ins.opcode = OP_OUTARG_VT;
1919 arg->size = -ainfo->vtsize;
1920 arg->offset = ainfo->offset;
1921 arg->offPrm = ainfo->offparm + sz.offStruct;
1922 } else if (ainfo->regtype == RegTypeStructByVal) {
1923 if (ainfo->reg != STK_BASE)
1924 call->used_iregs |= 1 << ainfo->reg;
1925 arg->ins.sreg1 = ainfo->reg;
1926 arg->ins.opcode = OP_OUTARG_VT;
1927 arg->size = ainfo->size;
1928 arg->offset = ainfo->offset;
1929 arg->offPrm = ainfo->offparm + sz.offStruct;
1930 } else if (ainfo->regtype == RegTypeBase) {
1931 arg->ins.opcode = OP_OUTARG_MEMBASE;
1932 arg->ins.sreg1 = ainfo->reg;
1933 arg->size = ainfo->size;
1934 arg->offset = ainfo->offset;
1935 call->used_iregs |= 1 << ainfo->reg;
1936 } else if (ainfo->regtype == RegTypeFP) {
1937 arg->ins.unused = ainfo->reg;
1938 call->used_fregs |= 1 << ainfo->reg;
1939 if (ainfo->size == 4)
1940 arg->ins.opcode = OP_OUTARG_R4;
1941 else
1942 arg->ins.opcode = OP_OUTARG_R8;
1943 } else {
1944 g_assert_not_reached ();
1945 }
1946 }
1947 }
1948
1949 /*
1950 * Handle the case where there are no implicit arguments
1951 */
1952 if (!(sig->pinvoke) &&
1953 (sig->call_convention == MONO_CALL_VARARG) &&
1954 (n == sig->sentinelpos)) {
1955 emit_sig_cookie (cfg, call, cinfo, sizeof(MonoType *));
1956 }
1957
1958 /*
1959 * Reverse the call->out_args list.
1960 */
1961 {
1962 MonoInst *prev = NULL, *list = call->out_args, *next;
1963 while (list) {
1964 next = list->next;
1965 list->next = prev;
1966 prev = list;
1967 list = next;
1968 }
1969 call->out_args = prev;
1970 }
1971
1972 g_free (cinfo);
1973 return call;
1974 }
1975
1976 /*========================= End of Function ========================*/
1977
1978 /*------------------------------------------------------------------*/
1979 /* */
1980 /* Name - emit_sig_cookie. */
1981 /* */
1982 /* Function - For variable length parameter lists construct a */
1983 /* signature cookie and emit it. */
1984 /* */
1985 /*------------------------------------------------------------------*/
1986
1987 static void
1988 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call,
1989 CallInfo *cinfo, int argSize)
1990 {
1991 MonoCallArgParm *arg;
1992 MonoMethodSignature *tmpSig;
1993 MonoInst *sigArg;
1994
1995 cfg->disable_aot = TRUE;
1996
1997 /*----------------------------------------------------------*/
1998 /* mono_ArgIterator_Setup assumes the signature cookie is */
1999 /* passed first and all the arguments which were before it */
2000 /* passed on the stack after the signature. So compensate */
2001 /* by passing a different signature. */
2002 /*----------------------------------------------------------*/
2003 tmpSig = mono_metadata_signature_dup (call->signature);
2004 tmpSig->param_count -= call->signature->sentinelpos;
2005 tmpSig->sentinelpos = 0;
2006 if (tmpSig->param_count > 0)
2007 memcpy (tmpSig->params,
2008 call->signature->params + call->signature->sentinelpos,
2009 tmpSig->param_count * sizeof(MonoType *));
2010
2011 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
2012 sigArg->inst_p0 = tmpSig;
2013
2014 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG_MEMBASE);
2015 arg->ins.inst_left = sigArg;
2016 arg->ins.inst_right = (MonoInst *) call;
2017 arg->size = argSize;
2018 arg->offset = cinfo->sigCookie.offset;
2019
2020 /* prepend, we'll need to reverse them later */
2021 arg->ins.next = call->out_args;
2022 call->out_args = (MonoInst *) arg;
2023 }
2024
2025 /*========================= End of Function ========================*/
2026
2027 /*------------------------------------------------------------------*/
2028 /* */
2029 /* Name - mono_arch_instrument_mem_needs */
2030 /* */
2031 /* Function - Allow tracing to work with this interface (with */
2032 /* an optional argument). */
2033 /* */
2034 /*------------------------------------------------------------------*/
2035
2036 void
2037 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2038 {
2039 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2040 *stack = 0;
2041 /* split prolog-epilog requirements? */
2042 *code = 50; /* max bytes needed: check this number */
2043 }
2044
2045 /*========================= End of Function ========================*/
2046
2047 /*------------------------------------------------------------------*/
2048 /* */
2049 /* Name - mono_arch_instrument_prolog */
2050 /* */
2051 /* Function - Create an "instrumented" prolog. */
2052 /* */
2053 /*------------------------------------------------------------------*/
2054
2055 void*
2056 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2057 gboolean enable_arguments)
2058 {
2059 guchar *code = p;
2060 int parmOffset,
2061 fpOffset,
2062 baseReg;
2063
2064 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2065 if (cfg->method->save_lmf)
2066 parmOffset -= sizeof(MonoLMF);
2067 fpOffset = parmOffset + (5*sizeof(gpointer));
2068 if ((!has_ld) && (fpOffset > 4096)) {
2069 s390_lgr (code, s390_r12, STK_BASE);
2070 baseReg = s390_r12;
2071 while (fpOffset > 4096) {
2072 s390_aghi (code, baseReg, 4096);
2073 fpOffset -= 4096;
2074 parmOffset -= 4096;
2075 }
2076 } else {
2077 baseReg = STK_BASE;
2078 }
2079
2080 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2081 if (has_ld) {
2082 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2083 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2084 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2085 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2086 } else {
2087 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2088 s390_std (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2089 s390_std (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2090 s390_std (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2091 }
2092 s390_basr (code, s390_r13, 0);
2093 s390_j (code, 10);
2094 s390_llong(code, cfg->method);
2095 s390_llong(code, func);
2096 s390_lg (code, s390_r2, 0, s390_r13, 4);
2097 if (has_ld)
2098 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2099 else
2100 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2101 s390_lgr (code, s390_r4, STK_BASE);
2102 s390_aghi (code, s390_r4, cfg->stack_usage);
2103 s390_lg (code, s390_r1, 0, s390_r13, 12);
2104 s390_basr (code, s390_r14, s390_r1);
2105 if (has_ld) {
2106 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2107 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2108 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2109 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2110 } else {
2111 s390_ld (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2112 s390_ld (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2113 s390_ld (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2114 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2115 }
2116 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2117
2118 return code;
2119 }
2120
2121 /*========================= End of Function ========================*/
2122
2123 /*------------------------------------------------------------------*/
2124 /* */
2125 /* Name - mono_arch_instrument_epilog */
2126 /* */
2127 /* Function - Create an epilog that will handle the returned */
2128 /* values used in instrumentation. */
2129 /* */
2130 /*------------------------------------------------------------------*/
2131
2132 void*
2133 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2134 {
2135 guchar *code = p;
2136 int save_mode = SAVE_NONE,
2137 saveOffset;
2138 MonoMethod *method = cfg->method;
2139 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2140
2141 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2142 if (method->save_lmf)
2143 saveOffset -= sizeof(MonoLMF);
2144
2145 handle_enum:
2146 switch (rtype) {
2147 case MONO_TYPE_VOID:
2148 /* special case string .ctor icall */
2149 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2150 save_mode = SAVE_ONE;
2151 else
2152 save_mode = SAVE_NONE;
2153 break;
2154 case MONO_TYPE_I8:
2155 case MONO_TYPE_U8:
2156 save_mode = SAVE_ONE;
2157 break;
2158 case MONO_TYPE_R4:
2159 save_mode = SAVE_R4;
2160 break;
2161 case MONO_TYPE_R8:
2162 save_mode = SAVE_R8;
2163 break;
2164 case MONO_TYPE_VALUETYPE:
2165 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2166 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
2167 goto handle_enum;
2168 }
2169 save_mode = SAVE_STRUCT;
2170 break;
2171 default:
2172 save_mode = SAVE_ONE;
2173 break;
2174 }
2175
2176 switch (save_mode) {
2177 case SAVE_ONE:
2178 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2179 if (enable_arguments) {
2180 s390_lgr (code, s390_r3, s390_r2);
2181 }
2182 break;
2183 case SAVE_R4:
2184 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2185 if (enable_arguments) {
2186 s390_ldebr (code, s390_f0, s390_f0);
2187 }
2188 break;
2189 case SAVE_R8:
2190 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2191 break;
2192 case SAVE_STRUCT:
2193 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2194 if (enable_arguments) {
2195 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2196 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2197 }
2198 break;
2199 case SAVE_NONE:
2200 default:
2201 break;
2202 }
2203
2204 s390_basr (code, s390_r13, 0);
2205 s390_j (code, 10);
2206 s390_llong(code, cfg->method);
2207 s390_llong(code, func);
2208 s390_lg (code, s390_r2, 0, s390_r13, 4);
2209 s390_lg (code, s390_r1, 0, s390_r13, 12);
2210 s390_basr (code, s390_r14, s390_r1);
2211
2212 switch (save_mode) {
2213 case SAVE_ONE:
2214 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2215 break;
2216 case SAVE_R4:
2217 case SAVE_R8:
2218 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2219 break;
2220 case SAVE_STRUCT:
2221 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2222 break;
2223 case SAVE_NONE:
2224 default:
2225 break;
2226 }
2227
2228 return code;
2229 }
2230
2231 /*========================= End of Function ========================*/
2232
2233 /*------------------------------------------------------------------*/
2234 /* */
2235 /* Name - peephole_pass */
2236 /* */
2237 /* Function - Form a peephole pass at the code looking for */
2238 /* simple optimizations. */
2239 /* */
2240 /*------------------------------------------------------------------*/
2241
2242 static void
2243 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2244 {
2245 MonoInst *ins, *last_ins = NULL;
2246 ins = bb->code;
2247
2248 while (ins) {
2249
2250 switch (ins->opcode) {
2251 case OP_MUL_IMM:
2252 /* remove unnecessary multiplication with 1 */
2253 if (ins->inst_imm == 1) {
2254 if (ins->dreg != ins->sreg1) {
2255 ins->opcode = OP_MOVE;
2256 } else {
2257 last_ins->next = ins->next;
2258 ins = ins->next;
2259 continue;
2260 }
2261 }
2262 break;
2263 case OP_LOAD_MEMBASE:
2264 case OP_LOADI4_MEMBASE:
2265 /*
2266 * OP_STORE_MEMBASE_REG reg, offset(basereg)
2267 * OP_LOAD_MEMBASE offset(basereg), reg
2268 */
2269 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
2270 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
2271 ins->inst_basereg == last_ins->inst_destbasereg &&
2272 ins->inst_offset == last_ins->inst_offset) {
2273 if (ins->dreg == last_ins->sreg1) {
2274 last_ins->next = ins->next;
2275 ins = ins->next;
2276 continue;
2277 } else {
2278 ins->opcode = OP_MOVE;
2279 ins->sreg1 = last_ins->sreg1;
2280 }
2281
2282 /*
2283 * Note: reg1 must be different from the basereg in the second load
2284 * OP_LOAD_MEMBASE offset(basereg), reg1
2285 * OP_LOAD_MEMBASE offset(basereg), reg2
2286 * -->
2287 * OP_LOAD_MEMBASE offset(basereg), reg1
2288 * OP_MOVE reg1, reg2
2289 */
2290 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
2291 || last_ins->opcode == OP_LOAD_MEMBASE) &&
2292 ins->inst_basereg != last_ins->dreg &&
2293 ins->inst_basereg == last_ins->inst_basereg &&
2294 ins->inst_offset == last_ins->inst_offset) {
2295
2296 if (ins->dreg == last_ins->dreg) {
2297 last_ins->next = ins->next;
2298 ins = ins->next;
2299 continue;
2300 } else {
2301 ins->opcode = OP_MOVE;
2302 ins->sreg1 = last_ins->dreg;
2303 }
2304
2305 }
2306 break;
2307 case OP_LOADU1_MEMBASE:
2308 case OP_LOADI1_MEMBASE:
2309 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
2310 ins->inst_basereg == last_ins->inst_destbasereg &&
2311 ins->inst_offset == last_ins->inst_offset) {
2312 if (ins->dreg == last_ins->sreg1) {
2313 last_ins->next = ins->next;
2314 ins = ins->next;
2315 continue;
2316 } else {
2317 ins->opcode = OP_MOVE;
2318 ins->sreg1 = last_ins->sreg1;
2319 }
2320 }
2321 break;
2322 case OP_LOADU2_MEMBASE:
2323 case OP_LOADI2_MEMBASE:
2324 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
2325 ins->inst_basereg == last_ins->inst_destbasereg &&
2326 ins->inst_offset == last_ins->inst_offset) {
2327 if (ins->dreg == last_ins->sreg1) {
2328 last_ins->next = ins->next;
2329 ins = ins->next;
2330 continue;
2331 } else {
2332 ins->opcode = OP_MOVE;
2333 ins->sreg1 = last_ins->sreg1;
2334 }
2335 }
2336 break;
2337 case CEE_CONV_I4:
2338 case CEE_CONV_U4:
2339 case OP_MOVE:
2340 /*
2341 * OP_MOVE reg, reg
2342 */
2343 if (ins->dreg == ins->sreg1) {
2344 if (last_ins)
2345 last_ins->next = ins->next;
2346 ins = ins->next;
2347 continue;
2348 }
2349 /*
2350 * OP_MOVE sreg, dreg
2351 * OP_MOVE dreg, sreg
2352 */
2353 if (last_ins && last_ins->opcode == OP_MOVE &&
2354 ins->sreg1 == last_ins->dreg &&
2355 ins->dreg == last_ins->sreg1) {
2356 last_ins->next = ins->next;
2357 ins = ins->next;
2358 continue;
2359 }
2360 break;
2361 }
2362 last_ins = ins;
2363 ins = ins->next;
2364 }
2365 bb->last_ins = last_ins;
2366 }
2367
2368 /*========================= End of Function ========================*/
2369
2370 /*------------------------------------------------------------------*/
2371 /* */
2372 /* Name - mono_arch_local_regalloc. */
2373 /* */
2374 /* Function - We first scan the list of instructions and we */
2375 /* save the liveness information of each register */
2376 /* (when the register is first used, when its value */
2377 /* is set etc.). We also reverse the list of instr- */
2378 /* uctions (in the InstList list) because assigning */
2379 /* registers backwards allows for more tricks to be */
2380 /* used. */
2381 /* */
2382 /*------------------------------------------------------------------*/
2383
2384 void
2385 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2386 {
2387 mono_local_regalloc(cfg, bb);
2388 }
2389
2390 /*========================= End of Function ========================*/
2391
2392 /*------------------------------------------------------------------*/
2393 /* */
2394 /* Name - emit_float_to_int */
2395 /* */
2396 /* Function - Create instructions which will convert a floating */
2397 /* point value to integer. */
2398 /* */
2399 /*------------------------------------------------------------------*/
2400
2401 static guchar*
2402 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2403 {
2404 /* sreg is a float, dreg is an integer reg. */
2405 if (is_signed) {
2406 s390_cfdbr (code, dreg, 5, sreg);
2407 switch (size) {
2408 case 1:
2409 s390_lghi (code, s390_r0, 0);
2410 s390_lghi (code, s390_r13, 0xff);
2411 s390_ltgr (code, dreg, dreg);
2412 s390_jnl (code, 4);
2413 s390_lghi (code, s390_r0, 0x80);
2414 s390_ngr (code, dreg, s390_r13);
2415 s390_ogr (code, dreg, s390_r0);
2416 break;
2417 }
2418 } else {
2419 short *o[1];
2420 s390_basr (code, s390_r13, 0);
2421 s390_j (code, 10);
2422 s390_llong (code, 0x41e0000000000000);
2423 s390_llong (code, 0x41f0000000000000);
2424 s390_ldr (code, s390_f15, sreg);
2425 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2426 s390_jl (code, 0); CODEPTR (code, o[0]);
2427 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2428 s390_cfdbr (code, dreg, 7, s390_f15);
2429 s390_j (code, 4);
2430 PTRSLOT (code, o[0]);
2431 s390_cfdbr (code, dreg, 5, sreg);
2432 switch (size) {
2433 case 1:
2434 s390_lghi (code, s390_r0, 0xff);
2435 s390_ngr (code, dreg, s390_r0);
2436 break;
2437 case 2:
2438 s390_lghi (code, s390_r0, -1);
2439 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2440 s390_ngr (code, dreg, s390_r0);
2441 break;
2442 }
2443 }
2444 return code;
2445 }
2446
2447 /*========================= End of Function ========================*/
2448
2449 /*------------------------------------------------------------------*/
2450 /* */
2451 /* Name - mono_arch_output_basic_block */
2452 /* */
2453 /* Function - Perform the "real" work of emitting instructions */
2454 /* that will do the work of in the basic block. */
2455 /* */
2456 /*------------------------------------------------------------------*/
2457
2458 void
2459 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2460 {
2461 MonoInst *ins;
2462 MonoCallInst *call;
2463 guint offset;
2464 guint8 *code = cfg->native_code + cfg->code_len;
2465 MonoInst *last_ins = NULL;
2466 guint last_offset = 0;
2467 int max_len, cpos, src2;
2468
2469 if (cfg->opt & MONO_OPT_PEEPHOLE)
2470 peephole_pass (cfg, bb);
2471
2472 /* we don't align basic blocks of loops on s390 */
2473
2474 if (cfg->verbose_level > 2)
2475 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2476
2477 cpos = bb->max_offset;
2478
2479 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2480 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2481 //g_assert (!mono_compile_aot);
2482 //cpos += 6;
2483 //if (bb->cil_code)
2484 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2485 /* this is not thread save, but good enough */
2486 /* fixme: howto handle overflows? */
2487 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2488 }
2489
2490 ins = bb->code;
2491 while (ins) {
2492 offset = code - cfg->native_code;
2493
2494 max_len = ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
2495
2496 if (offset > (cfg->code_size - max_len - 16)) {
2497 cfg->code_size *= 2;
2498 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2499 code = cfg->native_code + offset;
2500 }
2501
2502 mono_debug_record_line_number (cfg, ins, offset);
2503
2504 switch (ins->opcode) {
2505 case OP_STOREI1_MEMBASE_IMM: {
2506 s390_lghi (code, s390_r0, ins->inst_imm);
2507 S390_LONG (code, stcy, stc, s390_r0, 0,
2508 ins->inst_destbasereg, ins->inst_offset);
2509 }
2510 break;
2511 case OP_STOREI2_MEMBASE_IMM: {
2512 s390_lghi (code, s390_r0, ins->inst_imm);
2513 S390_LONG (code, sthy, sth, s390_r0, 0,
2514 ins->inst_destbasereg, ins->inst_offset);
2515 }
2516 break;
2517 case OP_STOREI4_MEMBASE_IMM: {
2518 if (s390_is_imm16(ins->inst_imm)) {
2519 s390_lghi (code, s390_r0, ins->inst_imm);
2520 } else {
2521 s390_basr (code, s390_r13, 0);
2522 s390_j (code, 6);
2523 s390_llong(code, ins->inst_imm);
2524 s390_lg (code, s390_r0, 0, s390_r13, 4);
2525 }
2526 S390_LONG (code, sty, st, s390_r0, 0,
2527 ins->inst_destbasereg, ins->inst_offset);
2528 }
2529 break;
2530 case OP_STORE_MEMBASE_IMM:
2531 case OP_STOREI8_MEMBASE_IMM: {
2532 if (s390_is_imm16(ins->inst_imm)) {
2533 s390_lghi (code, s390_r0, ins->inst_imm);
2534 } else {
2535 s390_basr (code, s390_r13, 0);
2536 s390_j (code, 6);
2537 s390_llong(code, ins->inst_imm);
2538 s390_lg (code, s390_r0, 0, s390_r13, 4);
2539 }
2540 S390_LONG (code, stg, stg, s390_r0, 0,
2541 ins->inst_destbasereg, ins->inst_offset);
2542 }
2543 break;
2544 case OP_STOREI1_MEMBASE_REG: {
2545 S390_LONG (code, stcy, stc, ins->sreg1, 0,
2546 ins->inst_destbasereg, ins->inst_offset);
2547 }
2548 break;
2549 case OP_STOREI2_MEMBASE_REG: {
2550 S390_LONG (code, sthy, sth, ins->sreg1, 0,
2551 ins->inst_destbasereg, ins->inst_offset);
2552 }
2553 break;
2554 case OP_STOREI4_MEMBASE_REG: {
2555 S390_LONG (code, sty, st, ins->sreg1, 0,
2556 ins->inst_destbasereg, ins->inst_offset);
2557 }
2558 break;
2559 case OP_STORE_MEMBASE_REG:
2560 case OP_STOREI8_MEMBASE_REG: {
2561 S390_LONG (code, stg, stg, ins->sreg1, 0,
2562 ins->inst_destbasereg, ins->inst_offset);
2563 }
2564 break;
2565 case CEE_LDIND_I:
2566 case CEE_LDIND_I4: {
2567 s390_basr (code, s390_r13, 0);
2568 s390_j (code, 6);
2569 s390_llong(code, ins->inst_p0);
2570 s390_lg (code, s390_r13, 0, s390_r13, 4);
2571 s390_lgf (code, ins->dreg, 0, s390_r13, 0);
2572 }
2573 break;
2574 case CEE_LDIND_U4: {
2575 s390_basr (code, s390_r13, 0);
2576 s390_j (code, 6);
2577 s390_llong(code, ins->inst_p0);
2578 s390_lg (code, s390_r13, 0, s390_r13, 4);
2579 s390_llgf (code, ins->dreg, 0, s390_r13, 0);
2580 }
2581 break;
2582 case OP_LOADU4_MEM:
2583 g_assert_not_reached ();
2584 break;
2585 case OP_LOAD_MEMBASE:
2586 case OP_LOADI8_MEMBASE: {
2587 S390_LONG (code, lg, lg, ins->dreg, 0,
2588 ins->inst_basereg, ins->inst_offset);
2589 }
2590 break;
2591 case OP_LOADI4_MEMBASE: {
2592 S390_LONG (code, lgf, lgf, ins->dreg, 0,
2593 ins->inst_basereg, ins->inst_offset);
2594 }
2595 break;
2596 case OP_LOADU4_MEMBASE: {
2597 S390_LONG (code, llgf, llgf, ins->dreg, 0,
2598 ins->inst_basereg, ins->inst_offset);
2599 }
2600 break;
2601 case OP_LOADU1_MEMBASE: {
2602 S390_LONG (code, llgc, llgc, ins->dreg, 0,
2603 ins->inst_basereg, ins->inst_offset);
2604 }
2605 break;
2606 case OP_LOADI1_MEMBASE: {
2607 S390_LONG (code, lb, lb, ins->dreg, 0,
2608 ins->inst_basereg, ins->inst_offset);
2609 }
2610 break;
2611 case OP_LOADU2_MEMBASE: {
2612 S390_LONG (code, llgh, llgh, ins->dreg, 0,
2613 ins->inst_basereg, ins->inst_offset);
2614 }
2615 break;
2616 case OP_LOADI2_MEMBASE: {
2617 S390_LONG (code, lgh, lgh, ins->dreg, 0,
2618 ins->inst_basereg, ins->inst_offset);
2619 }
2620 break;
2621 case CEE_CONV_I1: {
2622 s390_lghi (code, s390_r0, 0x80);
2623 if (ins->dreg != ins->sreg1) {
2624 s390_lgr (code, ins->dreg, ins->sreg1);
2625 }
2626 s390_ngr (code, s390_r0, ins->sreg1);
2627 s390_jz (code, 9);
2628 s390_lghi (code, s390_r13, -1);
2629 s390_sllg (code, s390_r13, s390_r13, 0, 8);
2630 s390_ogr (code, ins->dreg, s390_r13);
2631 }
2632 break;
2633 case CEE_CONV_I2: {
2634 s390_lghi (code, s390_r0, 0x80);
2635 s390_sllg (code, s390_r0, s390_r0, 0, 8);
2636 if (ins->dreg != ins->sreg1) {
2637 s390_lgr (code, ins->dreg, ins->sreg1);
2638 }
2639 s390_ngr (code, s390_r0, ins->sreg1);
2640 s390_jz (code, 9);
2641 s390_lghi (code, s390_r13, -1);
2642 s390_sllg (code, s390_r13, s390_r13, 0, 16);
2643 s390_ogr (code, ins->dreg, s390_r13);
2644 }
2645 break;
2646 case CEE_CONV_U1: {
2647 s390_lghi (code, s390_r0, 0xff);
2648 if (ins->dreg != ins->sreg1) {
2649 s390_lgr (code, ins->dreg, ins->sreg1);
2650 }
2651 s390_ngr (code, ins->dreg, s390_r0);
2652 }
2653 break;
2654 case CEE_CONV_U2: {
2655 s390_lghi (code, s390_r0, -1);
2656 s390_sllg (code, s390_r0, s390_r0, 0, 16);
2657 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2658 if (ins->dreg != ins->sreg1) {
2659 s390_lgr (code, ins->dreg, ins->sreg1);
2660 }
2661 s390_ngr (code, ins->dreg, s390_r0);
2662 }
2663 break;
2664 case OP_COMPARE:
2665 case OP_LCOMPARE: {
2666 if ((ins->next) &&
2667 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2668 s390_clgr (code, ins->sreg1, ins->sreg2);
2669 else
2670 s390_cgr (code, ins->sreg1, ins->sreg2);
2671 }
2672 break;
2673 case OP_COMPARE_IMM: {
2674 if (s390_is_imm16 (ins->inst_imm)) {
2675 s390_lghi (code, s390_r0, ins->inst_imm);
2676 if ((ins->next) &&
2677 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2678 s390_clgr (code, ins->sreg1, s390_r0);
2679 else
2680 s390_cgr (code, ins->sreg1, s390_r0);
2681 }
2682 else {
2683 s390_basr (code, s390_r13, 0);
2684 s390_j (code, 6);
2685 s390_llong(code, ins->inst_imm);
2686 if ((ins->next) &&
2687 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2688 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
2689 else
2690 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
2691 }
2692 }
2693 break;
2694 case OP_ICOMPARE: {
2695 if ((ins->next) &&
2696 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2697 s390_clr (code, ins->sreg1, ins->sreg2);
2698 else
2699 s390_cr (code, ins->sreg1, ins->sreg2);
2700 }
2701 break;
2702 case OP_ICOMPARE_IMM: {
2703 if (s390_is_imm16 (ins->inst_imm)) {
2704 s390_lghi (code, s390_r0, ins->inst_imm);
2705 if ((ins->next) &&
2706 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2707 s390_clr (code, ins->sreg1, s390_r0);
2708 else
2709 s390_cr (code, ins->sreg1, s390_r0);
2710 }
2711 else {
2712 s390_basr (code, s390_r13, 0);
2713 s390_j (code, 4);
2714 s390_word (code, ins->inst_imm);
2715 if ((ins->next) &&
2716 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2717 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2718 else
2719 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2720 }
2721 }
2722 break;
2723 case CEE_BREAK: {
2724 s390_basr (code, s390_r13, 0);
2725 s390_j (code, 6);
2726 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
2727 mono_arch_break);
2728 s390_llong (code, mono_arch_break);
2729 s390_lg (code, s390_r14, 0, s390_r13, 4);
2730 s390_basr (code, s390_r14, s390_r14);
2731 }
2732 break;
2733 case OP_ADDCC: {
2734 CHECK_SRCDST_COM;
2735 s390_algr (code, ins->dreg, src2);
2736 }
2737 break;
2738 case CEE_ADD: {
2739 CHECK_SRCDST_COM;
2740 s390_agr (code, ins->dreg, src2);
2741 }
2742 break;
2743 case OP_ADC: {
2744 CHECK_SRCDST_COM;
2745 s390_alcgr (code, ins->dreg, src2);
2746 }
2747 break;
2748 case OP_ADD_IMM: {
2749 if (ins->dreg != ins->sreg1) {
2750 s390_lgr (code, ins->dreg, ins->sreg1);
2751 }
2752 if (s390_is_imm16 (ins->inst_imm)) {
2753 s390_aghi (code, ins->dreg, ins->inst_imm);
2754 } else {
2755 s390_basr (code, s390_r13, 0);
2756 s390_j (code, 6);
2757 s390_llong(code, ins->inst_imm);
2758 s390_ag (code, ins->dreg, 0, s390_r13, 4);
2759 }
2760 }
2761 break;
2762 // case OP_ADDCC_IMM: {
2763 // if ((ins->next) &&
2764 // (ins->next->opcode == OP_ADC_IMM)) {
2765 // s390_basr (code, s390_r13, 0);
2766 // s390_j (code, 6);
2767 // s390_llong(code, ins->inst_imm);
2768 // if (ins->dreg != ins->sreg1) {
2769 // s390_lgr (code, ins->dreg, ins->sreg1);
2770 // }
2771 // s390_alg (code, ins->dreg, 0, s390_r13, 4);
2772 // } else {
2773 // if (s390_is_imm16 (ins->inst_imm)) {
2774 // if (ins->dreg != ins->sreg1) {
2775 // s390_lgr (code, ins->dreg, ins->sreg1);
2776 // }
2777 // s390_aghi (code, ins->dreg, ins->inst_imm);
2778 // } else {
2779 // s390_basr (code, s390_r13, 0);
2780 // s390_j (code, 6);
2781 // s390_llong(code, ins->inst_imm);
2782 // if (ins->dreg != ins->sreg1) {
2783 // s390_lgr (code, ins->dreg, ins->sreg1);
2784 // }
2785 // s390_ag (code, ins->dreg, 0, s390_r13, 4);
2786 // }
2787 // }
2788 // }
2789 // break;
2790 case OP_ADC_IMM: {
2791 if (ins->dreg != ins->sreg1) {
2792 s390_lgr (code, ins->dreg, ins->sreg1);
2793 }
2794 if (s390_is_imm16 (ins->inst_imm)) {
2795 s390_lghi (code, s390_r0, ins->inst_imm);
2796 s390_alcgr (code, ins->dreg, s390_r0);
2797 } else {
2798 s390_basr (code, s390_r13, 0);
2799 s390_j (code, 6);
2800 s390_llong (code, ins->inst_imm);
2801 s390_lg (code, s390_r13, 0, s390_r13, 4);
2802 s390_alcgr (code, ins->dreg, s390_r13);
2803 }
2804 }
2805 break;
2806 case OP_LADD_OVF: {
2807 CHECK_SRCDST_COM;
2808 s390_agr (code, ins->dreg, src2);
2809 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2810 }
2811 break;
2812 case OP_LADD_OVF_UN: {
2813 CHECK_SRCDST_COM;
2814 s390_algr (code, ins->dreg, src2);
2815 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2816 }
2817 break;
2818 case OP_ADD_OVF_CARRY: {
2819 CHECK_SRCDST_COM;
2820 s390_lghi (code, s390_r0, 0);
2821 s390_lgr (code, s390_r1, s390_r0);
2822 s390_alcgr (code, s390_r0, s390_r1);
2823 s390_agr (code, ins->dreg, src2);
2824 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2825 s390_agr (code, ins->dreg, s390_r0);
2826 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2827 }
2828 break;
2829 case OP_ADD_OVF_UN_CARRY: {
2830 CHECK_SRCDST_COM;
2831 s390_alcgr (code, ins->dreg, src2);
2832 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2833 }
2834 break;
2835 case OP_SUBCC: {
2836 CHECK_SRCDST_NCOM;
2837 s390_slgr (code, ins->dreg, src2);
2838 }
2839 break;
2840 case CEE_SUB: {
2841 CHECK_SRCDST_NCOM;
2842 s390_sgr (code, ins->dreg, src2);
2843 }
2844 break;
2845 case OP_SBB: {
2846 CHECK_SRCDST_NCOM;
2847 s390_slbgr(code, ins->dreg, src2);
2848 }
2849 break;
2850 case OP_SUB_IMM: {
2851 if (ins->dreg != ins->sreg1) {
2852 s390_lgr (code, ins->dreg, ins->sreg1);
2853 }
2854 if (s390_is_imm16 (-ins->inst_imm)) {
2855 s390_lghi (code, s390_r0, ins->inst_imm);
2856 s390_slgr (code, ins->dreg, s390_r0);
2857 } else {
2858 s390_basr (code, s390_r13, 0);
2859 s390_j (code, 6);
2860 s390_llong(code, ins->inst_imm);
2861 s390_slg (code, ins->dreg, 0, s390_r13, 4);
2862 }
2863 }
2864 break;
2865 case OP_SBB_IMM: {
2866 if (ins->dreg != ins->sreg1) {
2867 s390_lgr (code, ins->dreg, ins->sreg1);
2868 }
2869 if (s390_is_imm16 (-ins->inst_imm)) {
2870 s390_lghi (code, s390_r0, ins->inst_imm);
2871 s390_slbgr (code, ins->dreg, s390_r0);
2872 } else {
2873 s390_basr (code, s390_r13, 0);
2874 s390_j (code, 6);
2875 s390_llong(code, ins->inst_imm);
2876 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
2877 }
2878 }
2879 break;
2880 case OP_LSUB_OVF: {
2881 CHECK_SRCDST_NCOM;
2882 s390_sgr (code, ins->dreg, src2);
2883 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2884 }
2885 break;
2886 case OP_LSUB_OVF_UN: {
2887 CHECK_SRCDST_NCOM;
2888 s390_slgr (code, ins->dreg, src2);
2889 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2890 }
2891 break;
2892 case OP_SUB_OVF_CARRY: {
2893 CHECK_SRCDST_NCOM;
2894 s390_lghi (code, s390_r0, 0);
2895 s390_lgr (code, s390_r1, s390_r0);
2896 s390_slbgr (code, s390_r0, s390_r1);
2897 s390_sgr (code, ins->dreg, src2);
2898 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2899 s390_agr (code, ins->dreg, s390_r0);
2900 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2901 }
2902 break;
2903 case OP_SUB_OVF_UN_CARRY: {
2904 CHECK_SRCDST_NCOM;
2905 s390_slbgr (code, ins->dreg, src2);
2906 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2907 }
2908 break;
2909 case CEE_AND: {
2910 if (ins->sreg1 == ins->dreg) {
2911 s390_ngr (code, ins->dreg, ins->sreg2);
2912 }
2913 else {
2914 if (ins->sreg2 == ins->dreg) {
2915 s390_ngr (code, ins->dreg, ins->sreg1);
2916 }
2917 else {
2918 s390_lgr (code, ins->dreg, ins->sreg1);
2919 s390_ngr (code, ins->dreg, ins->sreg2);
2920 }
2921 }
2922 }
2923 break;
2924 case OP_AND_IMM: {
2925 if (ins->dreg != ins->sreg1) {
2926 s390_lgr (code, ins->dreg, ins->sreg1);
2927 }
2928 if (s390_is_imm16 (ins->inst_imm)) {
2929 s390_lghi (code, s390_r0, ins->inst_imm);
2930 s390_ngr (code, ins->dreg, s390_r0);
2931 } else {
2932 s390_basr (code, s390_r13, 0);
2933 s390_j (code, 6);
2934 s390_llong(code, ins->inst_imm);
2935 s390_ng (code, ins->dreg, 0, s390_r13, 4);
2936 }
2937 }
2938 break;
2939 case OP_LDIV: {
2940 s390_lgr (code, s390_r1, ins->sreg1);
2941 s390_dsgr (code, s390_r0, ins->sreg2);
2942 s390_lgr (code, ins->dreg, s390_r1);
2943 }
2944 break;
2945 case OP_LDIV_UN: {
2946 s390_lgr (code, s390_r1, ins->sreg1);
2947 s390_lghi (code, s390_r0, 0);
2948 s390_dlgr (code, s390_r0, ins->sreg2);
2949 s390_lgr (code, ins->dreg, s390_r1);
2950 }
2951 break;
2952 case OP_DIV_IMM: {
2953 if (s390_is_imm16 (ins->inst_imm)) {
2954 s390_lghi (code, s390_r13, ins->inst_imm);
2955 s390_lgr (code, s390_r1, ins->sreg1);
2956 } else {
2957 s390_basr (code, s390_r13, 0);
2958 s390_j (code, 6);
2959 s390_llong(code, ins->inst_imm);
2960 s390_lgr (code, s390_r1, ins->sreg1);
2961 s390_lg (code, s390_r13, 0, s390_r13, 4);
2962 }
2963 s390_dsgr (code, s390_r0, s390_r13);
2964 s390_lgr (code, ins->dreg, s390_r1);
2965 }
2966 break;
2967 case OP_LREM: {
2968 s390_lgr (code, s390_r1, ins->sreg1);
2969 s390_dsgr (code, s390_r0, ins->sreg2);
2970 s390_lgr (code, ins->dreg, s390_r0);
2971 break;
2972 }
2973 case OP_LREM_UN: {
2974 s390_lgr (code, s390_r1, ins->sreg1);
2975 s390_lghi (code, s390_r0, 0);
2976 s390_dlgr (code, s390_r0, ins->sreg2);
2977 s390_lgr (code, ins->dreg, s390_r0);
2978 }
2979 break;
2980 case OP_REM_IMM: {
2981 if (s390_is_imm16 (ins->inst_imm)) {
2982 s390_lghi (code, s390_r13, ins->inst_imm);
2983 s390_lgr (code, s390_r0, ins->sreg1);
2984 } else {
2985 s390_basr (code, s390_r13, 0);
2986 s390_j (code, 6);
2987 s390_llong(code, ins->inst_imm);
2988 s390_lgr (code, s390_r0, ins->sreg1);
2989 s390_lg (code, s390_r13, 0, s390_r13, 4);
2990 }
2991 s390_dsgr(code, s390_r0, s390_r13);
2992 s390_lgr (code, ins->dreg, s390_r0);
2993 }
2994 break;
2995 case CEE_OR: {
2996 if (ins->sreg1 == ins->dreg) {
2997 s390_ogr (code, ins->dreg, ins->sreg2);
2998 }
2999 else {
3000 if (ins->sreg2 == ins->dreg) {
3001 s390_ogr (code, ins->dreg, ins->sreg1);
3002 }
3003 else {
3004 s390_lgr (code, ins->dreg, ins->sreg1);
3005 s390_ogr (code, ins->dreg, ins->sreg2);
3006 }
3007 }
3008 }
3009 break;
3010 case OP_OR_IMM: {
3011 if (ins->dreg != ins->sreg1) {
3012 s390_lgr (code, ins->dreg, ins->sreg1);
3013 }
3014 if (s390_is_imm16 (ins->inst_imm)) {
3015 s390_lghi (code, s390_r0, ins->inst_imm);
3016 s390_ogr (code, ins->dreg, s390_r0);
3017 } else {
3018 s390_basr (code, s390_r13, 0);
3019 s390_j (code, 6);
3020 s390_llong(code, ins->inst_imm);
3021 s390_og (code, ins->dreg, 0, s390_r13, 4);
3022 }
3023 }
3024 break;
3025 case CEE_XOR: {
3026 if (ins->sreg1 == ins->dreg) {
3027 s390_xgr (code, ins->dreg, ins->sreg2);
3028 }
3029 else {
3030 if (ins->sreg2 == ins->dreg) {
3031 s390_xgr (code, ins->dreg, ins->sreg1);
3032 }
3033 else {
3034 s390_lgr (code, ins->dreg, ins->sreg1);
3035 s390_xgr (code, ins->dreg, ins->sreg2);
3036 }
3037 }
3038 }
3039 break;
3040 case OP_XOR_IMM: {
3041 if (ins->dreg != ins->sreg1) {
3042 s390_lgr (code, ins->dreg, ins->sreg1);
3043 }
3044 if (s390_is_imm16 (ins->inst_imm)) {
3045 s390_lghi (code, s390_r0, ins->inst_imm);
3046 s390_xgr (code, ins->dreg, s390_r0);
3047 } else {
3048 s390_basr (code, s390_r13, 0);
3049 s390_j (code, 6);
3050 s390_llong(code, ins->inst_imm);
3051 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3052 }
3053 }
3054 break;
3055 case CEE_SHL:
3056 case OP_LSHL: {
3057 CHECK_SRCDST_NCOM;
3058 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3059 }
3060 break;
3061 case OP_SHL_IMM:
3062 case OP_LSHL_IMM: {
3063 if (ins->sreg1 != ins->dreg) {
3064 s390_lgr (code, ins->dreg, ins->sreg1);
3065 }
3066 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3067 }
3068 break;
3069 case CEE_SHR:
3070 case OP_LSHR: {
3071 CHECK_SRCDST_NCOM;
3072 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3073 }
3074 break;
3075 case OP_SHR_IMM:
3076 case OP_LSHR_IMM: {
3077 if (ins->sreg1 != ins->dreg) {
3078 s390_lgr (code, ins->dreg, ins->sreg1);
3079 }
3080 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3081 }
3082 break;
3083 case OP_SHR_UN_IMM:
3084 case OP_LSHR_UN_IMM: {
3085 if (ins->sreg1 != ins->dreg) {
3086 s390_lgr (code, ins->dreg, ins->sreg1);
3087 }
3088 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3089 }
3090 break;
3091 case CEE_SHR_UN:
3092 case OP_LSHR_UN: {
3093 CHECK_SRCDST_NCOM;
3094 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3095 }
3096 break;
3097 case CEE_NOT: {
3098 if (ins->sreg1 != ins->dreg) {
3099 s390_lgr (code, ins->dreg, ins->sreg1);
3100 }
3101 s390_lghi (code, s390_r0, -1);
3102 s390_xgr (code, ins->dreg, s390_r0);
3103 }
3104 break;
3105 case CEE_NEG: {
3106 s390_lcgr (code, ins->dreg, ins->sreg1);
3107 }
3108 break;
3109 case CEE_MUL:
3110 case OP_LMUL: {
3111 CHECK_SRCDST_COM;
3112 s390_msgr (code, ins->dreg, src2);
3113 }
3114 break;
3115 case OP_MUL_IMM:
3116 case OP_LMUL_IMM: {
3117 if (ins->dreg != ins->sreg1) {
3118 s390_lgr (code, ins->dreg, ins->sreg1);
3119 }
3120 if (s390_is_imm16 (ins->inst_imm)) {
3121 s390_lghi (code, s390_r13, ins->inst_imm);
3122 } else {
3123 s390_basr (code, s390_r13, 0);
3124 s390_j (code, 6);
3125 s390_llong(code, ins->inst_imm);
3126 s390_lg (code, s390_r13, 0, s390_r13, 4);
3127 }
3128 s390_msgr (code, ins->dreg, s390_r13);
3129 }
3130 break;
3131 case OP_LMUL_OVF:
3132 case CEE_MUL_OVF: {
3133 short int *o[2];
3134 s390_ltgr (code, s390_r1, ins->sreg1);
3135 s390_jz (code, 0); CODEPTR(code, o[0]);
3136 s390_ltgr (code, s390_r0, ins->sreg2);
3137 s390_jnz (code, 6);
3138 s390_lghi (code, s390_r1, 0);
3139 s390_j (code, 0); CODEPTR(code, o[1]);
3140 s390_xgr (code, s390_r0, s390_r1);
3141 s390_msgr (code, s390_r1, ins->sreg2);
3142 s390_xgr (code, s390_r0, s390_r1);
3143 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3144 s390_ltgr (code, s390_r0, s390_r0);
3145 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3146 PTRSLOT (code, o[0]);
3147 PTRSLOT (code, o[1]);
3148 s390_lgr (code, ins->dreg, s390_r1);
3149 }
3150 break;
3151 case OP_LMUL_OVF_UN:
3152 case CEE_MUL_OVF_UN: {
3153 s390_lghi (code, s390_r0, 0);
3154 s390_lgr (code, s390_r1, ins->sreg1);
3155 s390_mlgr (code, s390_r0, ins->sreg2);
3156 s390_ltgr (code, s390_r0, s390_r0);
3157 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3158 s390_lgr (code, ins->dreg, s390_r1);
3159 }
3160 break;
3161 case OP_IADDCC: {
3162 g_assert_not_reached ();
3163 CHECK_SRCDST_COM_I;
3164 s390_algr (code, ins->dreg, src2);
3165 }
3166 break;
3167 case OP_IADD: {
3168 CHECK_SRCDST_COM_I;
3169 s390_agr (code, ins->dreg, src2);
3170 }
3171 break;
3172 case OP_IADC: {
3173 g_assert_not_reached ();
3174 CHECK_SRCDST_COM_I;
3175 s390_alcgr (code, ins->dreg, src2);
3176 }
3177 break;
3178 case OP_IADD_IMM: {
3179 if (ins->dreg != ins->sreg1) {
3180 s390_lgfr (code, ins->dreg, ins->sreg1);
3181 }
3182 if (s390_is_imm16 (ins->inst_imm)) {
3183 s390_aghi(code, ins->dreg, ins->inst_imm);
3184 } else {
3185 s390_basr (code, s390_r13, 0);
3186 s390_j (code, 4);
3187 s390_word (code, ins->inst_imm);
3188 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3189 }
3190 }
3191 break;
3192 case OP_IADC_IMM: {
3193 if (ins->dreg != ins->sreg1) {
3194 s390_lgfr (code, ins->dreg, ins->sreg1);
3195 }
3196 if (s390_is_imm16 (ins->inst_imm)) {
3197 s390_lghi (code, s390_r0, ins->inst_imm);
3198 s390_alcgr (code, ins->dreg, s390_r0);
3199 } else {
3200 s390_basr (code, s390_r13, 0);
3201 s390_j (code, 4);
3202 s390_word (code, ins->inst_imm);
3203 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3204 s390_alcgr (code, ins->dreg, s390_r13);
3205 }
3206 }
3207 break;
3208 case CEE_ADD_OVF: {
3209 CHECK_SRCDST_COM;
3210 s390_ar (code, ins->dreg, src2);
3211 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3212 s390_lgfr (code, ins->dreg, ins->dreg);
3213 }
3214 break;
3215 case CEE_ADD_OVF_UN: {
3216 CHECK_SRCDST_COM;
3217 s390_algr (code, ins->dreg, src2);
3218 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3219 s390_llgfr (code, ins->dreg, ins->dreg);
3220 }
3221 break;
3222 case OP_ISUBCC: {
3223 CHECK_SRCDST_NCOM_I;
3224 s390_slgr (code, ins->dreg, src2);
3225 }
3226 break;
3227 case OP_ISUB: {
3228 CHECK_SRCDST_NCOM_I;
3229 s390_sgr (code, ins->dreg, src2);
3230 }
3231 break;
3232 case OP_ISBB: {
3233 CHECK_SRCDST_NCOM_I;
3234 s390_slbgr (code, ins->dreg, src2);
3235 }
3236 break;
3237 case OP_ISUB_IMM: {
3238 if (ins->dreg != ins->sreg1) {
3239 s390_lgfr (code, ins->dreg, ins->sreg1);
3240 }
3241 if (s390_is_imm16 (-ins->inst_imm)) {
3242 s390_aghi (code, ins->dreg, -ins->inst_imm);
3243 } else {
3244 s390_basr (code, s390_r13, 0);
3245 s390_j (code, 4);
3246 s390_word (code, ins->inst_imm);
3247 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3248 }
3249 }
3250 break;
3251 case OP_ISBB_IMM: {
3252 s390_basr (code, s390_r13, 0);
3253 s390_j (code, 4);
3254 s390_word (code, ins->inst_imm);
3255 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3256 }
3257 break;
3258 case CEE_SUB_OVF: {
3259 CHECK_SRCDST_NCOM;
3260 s390_sr (code, ins->dreg, src2);
3261 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3262 s390_lgfr (code, ins->dreg, ins->dreg);
3263 }
3264 break;
3265 case CEE_SUB_OVF_UN: {
3266 CHECK_SRCDST_NCOM;
3267 s390_slr (code, ins->dreg, src2);
3268 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3269 s390_llgfr(code, ins->dreg, ins->dreg);
3270 }
3271 break;
3272 case OP_IAND: {
3273 CHECK_SRCDST_NCOM_I;
3274 s390_ngr (code, ins->dreg, src2);
3275 }
3276 break;
3277 case OP_IAND_IMM: {
3278 if (ins->dreg != ins->sreg1) {
3279 s390_lgfr (code, ins->dreg, ins->sreg1);
3280 }
3281 if (s390_is_imm16 (ins->inst_imm)) {
3282 s390_lghi (code, s390_r0, ins->inst_imm);
3283 s390_ngr (code, ins->dreg, s390_r0);
3284 } else {
3285 s390_basr (code, s390_r13, 0);
3286 s390_j (code, 6);
3287 s390_llong(code, ins->inst_imm);
3288 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3289 }
3290 }
3291 break;
3292 case OP_IDIV: {
3293 s390_lgfr (code, s390_r0, ins->sreg1);
3294 s390_srda (code, s390_r0, 0, 32);
3295 s390_dr (code, s390_r0, ins->sreg2);
3296 s390_lgfr (code, ins->dreg, s390_r1);
3297 }
3298 break;
3299 case OP_IDIV_UN: {
3300 s390_lgfr (code, s390_r0, ins->sreg1);
3301 s390_srdl (code, s390_r0, 0, 32);
3302 s390_dlr (code, s390_r0, ins->sreg2);
3303 s390_lgfr (code, ins->dreg, s390_r1);
3304 }
3305 break;
3306 case OP_IDIV_IMM: {
3307 if (s390_is_imm16 (ins->inst_imm)) {
3308 s390_lghi (code, s390_r13, ins->inst_imm);
3309 s390_lgfr (code, s390_r0, ins->sreg1);
3310 } else {
3311 s390_basr (code, s390_r13, 0);
3312 s390_j (code, 4);
3313 s390_word (code, ins->inst_imm);
3314 s390_lgfr (code, s390_r0, ins->sreg1);
3315 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3316 }
3317 s390_srda (code, s390_r0, 0, 32);
3318 s390_dr (code, s390_r0, ins->sreg2);
3319 s390_lgfr (code, ins->dreg, s390_r1);
3320 }
3321 break;
3322 case OP_IREM: {
3323 s390_lgfr (code, s390_r0, ins->sreg1);
3324 s390_srda (code, s390_r0, 0, 32);
3325 s390_dr (code, s390_r0, ins->sreg2);
3326 s390_lgfr (code, ins->dreg, s390_r0);
3327 break;
3328 case OP_IREM_UN:
3329 s390_lgfr (code, s390_r0, ins->sreg1);
3330 s390_srdl (code, s390_r0, 0, 32);
3331 s390_dlr (code, s390_r0, ins->sreg2);
3332 s390_lgfr (code, ins->dreg, s390_r0);
3333 }
3334 break;
3335 case OP_IREM_IMM: {
3336 if (s390_is_imm16 (ins->inst_imm)) {
3337 s390_lghi (code, s390_r13, ins->inst_imm);
3338 s390_lgfr (code, s390_r0, ins->sreg1);
3339 } else {
3340 s390_basr (code, s390_r13, 0);
3341 s390_j (code, 4);
3342 s390_word (code, ins->inst_imm);
3343 s390_lgfr (code, s390_r0, ins->sreg1);
3344 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3345 }
3346 s390_srda (code, s390_r0, 0, 32);
3347 s390_dr (code, s390_r0, ins->sreg2);
3348 s390_lgfr (code, ins->dreg, s390_r0);
3349 }
3350 break;
3351 case OP_IOR: {
3352 CHECK_SRCDST_COM_I;
3353 s390_ogr (code, ins->dreg, src2);
3354 }
3355 break;
3356 case OP_IOR_IMM: {
3357 if (ins->dreg != ins->sreg1) {
3358 s390_lgfr (code, ins->dreg, ins->sreg1);
3359 }
3360 if (s390_is_imm16 (ins->inst_imm)) {
3361 s390_lghi (code, s390_r0, ins->inst_imm);
3362 s390_ogr (code, ins->dreg, s390_r0);
3363 } else {
3364 s390_basr (code, s390_r13, 0);
3365 s390_j (code, 6);
3366 s390_llong(code, ins->inst_imm);
3367 s390_og (code, ins->dreg, 0, s390_r13, 4);
3368 }
3369 }
3370 break;
3371 case OP_IXOR: {
3372 CHECK_SRCDST_COM_I;
3373 s390_xgr (code, ins->dreg, src2);
3374 }
3375 break;
3376 case OP_IXOR_IMM: {
3377 if (ins->dreg != ins->sreg1) {
3378 s390_lgfr (code, ins->dreg, ins->sreg1);
3379 }
3380 if (s390_is_imm16 (ins->inst_imm)) {
3381 s390_lghi (code, s390_r0, ins->inst_imm);
3382 s390_xgr (code, ins->dreg, s390_r0);
3383 } else {
3384 s390_basr (code, s390_r13, 0);
3385 s390_j (code, 6);
3386 s390_llong(code, ins->inst_imm);
3387 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3388 }
3389 }
3390 break;
3391 case OP_ISHL: {
3392 if (ins->sreg1 != ins->dreg) {
3393 s390_lgfr (code, ins->dreg, ins->sreg1);
3394 }
3395 s390_sll (code, ins->dreg, ins->sreg2, 0);
3396 }
3397 break;
3398 case OP_ISHL_IMM: {
3399 if (ins->sreg1 != ins->dreg) {
3400 s390_lgfr (code, ins->dreg, ins->sreg1);
3401 }
3402 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3403 }
3404 break;
3405 case OP_ISHR: {
3406 if (ins->sreg1 != ins->dreg) {
3407 s390_lgfr (code, ins->dreg, ins->sreg1);
3408 }
3409 s390_sra (code, ins->dreg, ins->sreg2, 0);
3410 }
3411 break;
3412 case OP_ISHR_IMM: {
3413 if (ins->sreg1 != ins->dreg) {
3414 s390_lgfr (code, ins->dreg, ins->sreg1);
3415 }
3416 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3417 }
3418 break;
3419 case OP_ISHR_UN_IMM: {
3420 if (ins->sreg1 != ins->dreg) {
3421 s390_lgfr (code, ins->dreg, ins->sreg1);
3422 }
3423 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3424 }
3425 break;
3426 case OP_ISHR_UN: {
3427 if (ins->sreg1 != ins->dreg) {
3428 s390_lgfr (code, ins->dreg, ins->sreg1);
3429 }
3430 s390_srl (code, ins->dreg, ins->sreg2, 0);
3431 }
3432 break;
3433 case OP_INOT: {
3434 if (ins->sreg1 != ins->dreg) {
3435 s390_lgfr (code, ins->dreg, ins->sreg1);
3436 }
3437 s390_lghi (code, s390_r0, -1);
3438 s390_xgr (code, ins->dreg, s390_r0);
3439 }
3440 break;
3441 case OP_INEG: {
3442 s390_lcgr (code, ins->dreg, ins->sreg1);
3443 }
3444 break;
3445 case OP_IMUL: {
3446 CHECK_SRCDST_COM_I;
3447 s390_msr (code, ins->dreg, src2);
3448 }
3449 break;
3450 case OP_IMUL_IMM: {
3451 if (ins->dreg != ins->sreg1) {
3452 s390_lgfr (code, ins->dreg, ins->sreg1);
3453 }
3454 if (s390_is_imm16 (ins->inst_imm)) {
3455 s390_lghi (code, s390_r13, ins->inst_imm);
3456 } else {
3457 s390_basr (code, s390_r13, 0);
3458 s390_j (code, 4);
3459 s390_word (code, ins->inst_imm);
3460 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3461 }
3462 s390_msr (code, ins->dreg, s390_r13);
3463 }
3464 break;
3465 case OP_IMUL_OVF: {
3466 short int *o[2];
3467 s390_ltr (code, s390_r1, ins->sreg1);
3468 s390_jz (code, 0); CODEPTR(code, o[0]);
3469 s390_ltr (code, s390_r0, ins->sreg2);
3470 s390_jnz (code, 6);
3471 s390_lhi (code, s390_r1, 0);
3472 s390_j (code, 0); CODEPTR(code, o[1]);
3473 s390_xr (code, s390_r0, s390_r1);
3474 s390_msr (code, s390_r1, ins->sreg2);
3475 s390_xr (code, s390_r0, s390_r1);
3476 s390_srl (code, s390_r0, 0, 31);
3477 s390_ltr (code, s390_r0, s390_r0);
3478 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3479 PTRSLOT (code, o[0]);
3480 PTRSLOT (code, o[1]);
3481 s390_lgfr (code, ins->dreg, s390_r1);
3482 }
3483 break;
3484 case OP_IMUL_OVF_UN: {
3485 s390_lhi (code, s390_r0, 0);
3486 s390_lr (code, s390_r1, ins->sreg1);
3487 s390_mlr (code, s390_r0, ins->sreg2);
3488 s390_ltr (code, s390_r0, s390_r0);
3489 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3490 s390_lgfr (code, ins->dreg, s390_r1);
3491 }
3492 break;
3493 case OP_ICONST:
3494 case OP_I8CONST:
3495 case OP_SETREGIMM: {
3496 if (s390_is_imm16(ins->inst_c0)) {
3497 s390_lghi (code, ins->dreg, ins->inst_c0);
3498 } else {
3499 s390_basr (code, s390_r13, 0);
3500 s390_j (code, 6);
3501 s390_llong(code, ins->inst_c0);
3502 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3503 }
3504 }
3505 break;
3506 case OP_AOTCONST: {
3507 s390_basr (code, s390_r13, 0);
3508 s390_j (code, 6);
3509 mono_add_patch_info (cfg, code - cfg->native_code,
3510 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3511 s390_llong(code, 0);
3512 s390_lg (code,ins->dreg, 0, s390_r13, 4);
3513 }
3514 break;
3515 case CEE_CONV_I:
3516 case CEE_CONV_I8:
3517 case OP_MOVE:
3518 case OP_SETREG: {
3519 if (ins->dreg != ins->sreg1) {
3520 s390_lgr (code, ins->dreg, ins->sreg1);
3521 }
3522 }
3523 break;
3524 case CEE_CONV_I4:
3525 s390_lgfr (code, ins->dreg, ins->sreg1);
3526 break;
3527 case CEE_CONV_U:
3528 case CEE_CONV_U8:
3529 case CEE_CONV_U4:
3530 s390_llgfr (code, ins->dreg, ins->sreg1);
3531 break;
3532 case CEE_CONV_OVF_U4:
3533 s390_basr (code, s390_r13, 0);
3534 s390_j (code, 6);
3535 s390_llong(code, 4294967295);
3536 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3537 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3538 s390_ltgr (code, ins->sreg1, ins->sreg1);
3539 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3540 s390_llgfr(code, ins->dreg, ins->sreg1);
3541 break;
3542 case CEE_CONV_OVF_I4_UN:
3543 s390_basr (code, s390_r13, 0);
3544 s390_j (code, 6);
3545 s390_llong(code, 2147483647);
3546 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3547 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3548 s390_ltgr (code, ins->sreg1, ins->sreg1);
3549 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3550 s390_lgfr (code, ins->dreg, ins->sreg1);
3551 break;
3552 case OP_SETFREG:
3553 case OP_FMOVE: {
3554 if (ins->dreg != ins->sreg1) {
3555 s390_ldr (code, ins->dreg, ins->sreg1);
3556 }
3557 }
3558 break;
3559 case OP_S390_SETF4RET: {
3560 s390_ledbr (code, ins->dreg, ins->sreg1);
3561 }
3562 break;
3563 case OP_FCONV_TO_R4: {
3564 g_error ("Shouldn't be reached");
3565 if ((ins->next) &&
3566 (ins->next->opcode != OP_FMOVE) &&
3567 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3568 s390_ledbr (code, ins->dreg, ins->sreg1);
3569 }
3570 break;
3571 case CEE_JMP: {
3572 if (cfg->method->save_lmf)
3573 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3574
3575 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3576 code = emit_load_volatile_registers(code, cfg);
3577 }
3578
3579 code = backUpStackPtr(cfg, code);
3580 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3581 mono_add_patch_info (cfg, code - cfg->native_code,
3582 MONO_PATCH_INFO_METHOD_JUMP,
3583 ins->inst_p0);
3584 s390_jcl (code, S390_CC_UN, 0);
3585 }
3586 break;
3587 case OP_CHECK_THIS: {
3588 /* ensure ins->sreg1 is not NULL */
3589 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
3590 s390_ltgr (code, s390_r0, s390_r0);
3591 }
3592 break;
3593 case OP_ARGLIST: {
3594 int offset = cfg->sig_cookie + cfg->stack_usage;
3595
3596 if (s390_is_imm16 (offset))
3597 s390_lghi (code, s390_r0, offset);
3598 else {
3599 s390_basr (code, s390_r13, 0);
3600 s390_j (code, 6);
3601 s390_llong(code, offset);
3602 s390_lg (code, s390_r0, 0, s390_r13, 0);
3603 }
3604 s390_agr (code, s390_r0, cfg->frame_reg);
3605 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
3606 }
3607 break;
3608 case OP_FCALL: {
3609 s390_basr (code, s390_r13, 0);
3610 s390_j (code, 6);
3611 call = (MonoCallInst*)ins;
3612 if (ins->flags & MONO_INST_HAS_METHOD)
3613 mono_add_patch_info (cfg, code-cfg->native_code,
3614 MONO_PATCH_INFO_METHOD,
3615 call->method);
3616 else
3617 mono_add_patch_info (cfg, code-cfg->native_code,
3618 MONO_PATCH_INFO_ABS,
3619 call->fptr);
3620 s390_llong(code, 0);
3621 s390_lg (code, s390_r14, 0, s390_r13, 4);
3622 s390_basr (code, s390_r14, s390_r14);
3623 if (call->signature->ret->type == MONO_TYPE_R4)
3624 s390_ldebr (code, s390_f0, s390_f0);
3625 }
3626 break;
3627 case OP_LCALL:
3628 case OP_VCALL:
3629 case OP_VOIDCALL:
3630 case CEE_CALL: {
3631 s390_basr (code, s390_r13, 0);
3632 s390_j (code, 6);
3633 call = (MonoCallInst*)ins;
3634 if (ins->flags & MONO_INST_HAS_METHOD)
3635 mono_add_patch_info (cfg, code-cfg->native_code,
3636 MONO_PATCH_INFO_METHOD,
3637 call->method);
3638 else
3639 mono_add_patch_info (cfg, code-cfg->native_code,
3640 MONO_PATCH_INFO_ABS,
3641 call->fptr);
3642 s390_llong(code, 0);
3643 s390_lg (code, s390_r14, 0, s390_r13, 4);
3644 s390_basr (code, s390_r14, s390_r14);
3645 }
3646 break;
3647 case OP_FCALL_REG: {
3648 call = (MonoCallInst*)ins;
3649 s390_lgr (code, s390_r1, ins->sreg1);
3650 s390_basr (code, s390_r14, s390_r1);
3651 if (call->signature->ret->type == MONO_TYPE_R4)
3652 s390_ldebr (code, s390_f0, s390_f0);
3653 }
3654 break;
3655 case OP_LCALL_REG:
3656 case OP_VCALL_REG:
3657 case OP_VOIDCALL_REG:
3658 case OP_CALL_REG: {
3659 s390_lgr (code, s390_r1, ins->sreg1);
3660 s390_basr (code, s390_r14, s390_r1);
3661 }
3662 break;
3663 case OP_FCALL_MEMBASE: {
3664 call = (MonoCallInst*)ins;
3665 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3666 s390_basr (code, s390_r14, s390_r1);
3667 if (call->signature->ret->type == MONO_TYPE_R4)
3668 s390_ldebr (code, s390_f0, s390_f0);
3669 }
3670 break;
3671 case OP_LCALL_MEMBASE:
3672 case OP_VCALL_MEMBASE:
3673 case OP_VOIDCALL_MEMBASE:
3674 case OP_CALL_MEMBASE: {
3675 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3676 s390_basr (code, s390_r14, s390_r1);
3677 }
3678 break;
3679 case OP_OUTARG:
3680 g_assert_not_reached ();
3681 break;
3682 case OP_LOCALLOC: {
3683 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3684 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3685 s390_lgr (code, s390_r1, ins->sreg1);
3686 if (ins->flags & MONO_INST_INIT)
3687 s390_lgr (code, s390_r0, ins->sreg1);
3688 s390_aghi (code, s390_r1, 14);
3689 s390_srlg (code, s390_r1, s390_r1, 0, 3);
3690 s390_sllg (code, s390_r1, s390_r1, 0, 3);
3691 if (cfg->method->save_lmf) {
3692 /*----------------------------------*/
3693 /* we have to adjust lmf ebp value */
3694 /*----------------------------------*/
3695 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3696
3697 s390_lgr (code, s390_r13, cfg->frame_reg);
3698 if (s390_is_uimm16(lmfOffset))
3699 s390_aghi (code, s390_r13, lmfOffset);
3700 else {
3701 s390_basr (code, s390_r14, 0);
3702 s390_j (code, 4);
3703 s390_word (code, lmfOffset);
3704 s390_agf (code, s390_r13, 0, s390_r14, 4);
3705 }
3706 s390_lgr (code, s390_r14, STK_BASE);
3707 s390_sgr (code, s390_r14, s390_r1);
3708 s390_stg (code, s390_r14, 0, s390_r13,
3709 G_STRUCT_OFFSET(MonoLMF, ebp));
3710 }
3711 s390_lg (code, s390_r13, 0, STK_BASE, 0);
3712 s390_sgr (code, STK_BASE, s390_r1);
3713 s390_stg (code, s390_r13, 0, STK_BASE, 0);
3714 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3715 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
3716 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
3717 if (ins->flags & MONO_INST_INIT) {
3718 s390_lgr (code, s390_r1, s390_r0);
3719 s390_lgr (code, s390_r0, ins->dreg);
3720 s390_lgr (code, s390_r14, s390_r12);
3721 s390_lghi (code, s390_r13, 0);
3722 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3723 s390_jo (code, -2);
3724 s390_lgr (code, s390_r12, s390_r14);
3725 }
3726 }
3727 break;
3728 case CEE_RET: {
3729 s390_br (code, s390_r14);
3730 }
3731 break;
3732 case CEE_THROW: {
3733 s390_lgr (code, s390_r2, ins->sreg1);
3734 s390_basr (code, s390_r13, 0);
3735 s390_j (code, 6);
3736 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3737 (gpointer) "mono_arch_throw_exception");
3738 s390_llong(code, 0);
3739 s390_lg (code, s390_r14, 0, s390_r13, 4);
3740 s390_basr (code, s390_r14, s390_r14);
3741 }
3742 break;
3743 case OP_RETHROW: {
3744 s390_lgr (code, s390_r2, ins->sreg1);
3745 s390_basr (code, s390_r13, 0);
3746 s390_j (code, 6);
3747 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3748 (gpointer) "mono_arch_rethrow_exception");
3749 s390_llong(code, 0);
3750 s390_lg (code, s390_r14, 0, s390_r13, 4);
3751 s390_basr (code, s390_r14, s390_r14);
3752 }
3753 break;
3754 case OP_START_HANDLER: {
3755 S390_LONG (code, stg, stg, s390_r14, 0,
3756 ins->inst_left->inst_basereg,
3757 ins->inst_left->inst_offset);
3758 }
3759 break;
3760 case OP_ENDFILTER: {
3761 if (ins->sreg1 != s390_r2)
3762 s390_lgr(code, s390_r2, ins->sreg1);
3763 S390_LONG (code, lg, lg, s390_r14, 0,
3764 ins->inst_left->inst_basereg,
3765 ins->inst_left->inst_offset);
3766 s390_br (code, s390_r14);
3767 }
3768 break;
3769 case CEE_ENDFINALLY: {
3770 S390_LONG (code, lg, lg, s390_r14, 0,
3771 ins->inst_left->inst_basereg,
3772 ins->inst_left->inst_offset);
3773 s390_br (code, s390_r14);
3774 }
3775 break;
3776 case OP_CALL_HANDLER: {
3777 mono_add_patch_info (cfg, code-cfg->native_code,
3778 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3779 s390_brasl (code, s390_r14, 0);
3780 }
3781 break;
3782 case OP_LABEL: {
3783 ins->inst_c0 = code - cfg->native_code;
3784 }
3785 break;
3786 case CEE_BR:
3787 EMIT_UNCOND_BRANCH(ins);
3788 break;
3789 case OP_BR_REG: {
3790 s390_br (code, ins->sreg1);
3791 }
3792 break;
3793 case OP_CEQ:
3794 case OP_ICEQ: {
3795 s390_lghi(code, ins->dreg, 1);
3796 s390_jz (code, 4);
3797 s390_lghi(code, ins->dreg, 0);
3798 }
3799 break;
3800 case OP_CLT:
3801 case OP_ICLT: {
3802 s390_lghi(code, ins->dreg, 1);
3803 s390_jl (code, 4);
3804 s390_lghi(code, ins->dreg, 0);
3805 }
3806 break;
3807 case OP_CLT_UN:
3808 case OP_ICLT_UN: {
3809 s390_lghi(code, ins->dreg, 1);
3810 s390_jlo (code, 4);
3811 s390_lghi(code, ins->dreg, 0);
3812 }
3813 break;
3814 case OP_CGT:
3815 case OP_ICGT: {
3816 s390_lghi(code, ins->dreg, 1);
3817 s390_jh (code, 4);
3818 s390_lghi(code, ins->dreg, 0);
3819 }
3820 break;
3821 case OP_CGT_UN:
3822 case OP_ICGT_UN: {
3823 s390_lghi(code, ins->dreg, 1);
3824 s390_jho (code, 4);
3825 s390_lghi(code, ins->dreg, 0);
3826 }
3827 break;
3828 case OP_COND_EXC_EQ:
3829 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3830 break;
3831 case OP_COND_EXC_NE_UN:
3832 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3833 break;
3834 case OP_COND_EXC_LT:
3835 case OP_COND_EXC_LT_UN:
3836 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3837 break;
3838 case OP_COND_EXC_GT:
3839 case OP_COND_EXC_GT_UN:
3840 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3841 break;
3842 case OP_COND_EXC_GE:
3843 case OP_COND_EXC_GE_UN:
3844 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3845 break;
3846 case OP_COND_EXC_LE:
3847 case OP_COND_EXC_LE_UN:
3848 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3849 break;
3850 case OP_COND_EXC_OV:
3851 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3852 break;
3853 case OP_COND_EXC_NO:
3854 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3855 break;
3856 case OP_COND_EXC_C:
3857 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3858 break;
3859 case OP_COND_EXC_NC:
3860 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3861 break;
3862 case CEE_BEQ:
3863 case OP_IBEQ:
3864 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3865 break;
3866 case CEE_BNE_UN:
3867 case OP_IBNE_UN:
3868 EMIT_COND_BRANCH (ins, S390_CC_NE);
3869 break;
3870 case CEE_BLT:
3871 case CEE_BLT_UN:
3872 case OP_IBLT:
3873 case OP_IBLT_UN:
3874 EMIT_COND_BRANCH (ins, S390_CC_LT);
3875 break;
3876 case CEE_BGT:
3877 case CEE_BGT_UN:
3878 case OP_IBGT:
3879 case OP_IBGT_UN:
3880 EMIT_COND_BRANCH (ins, S390_CC_GT);
3881 break;
3882 case CEE_BGE:
3883 case CEE_BGE_UN:
3884 case OP_IBGE:
3885 case OP_IBGE_UN:
3886 EMIT_COND_BRANCH (ins, S390_CC_GE);
3887 break;
3888 case CEE_BLE:
3889 case CEE_BLE_UN:
3890 case OP_IBLE:
3891 case OP_IBLE_UN:
3892 EMIT_COND_BRANCH (ins, S390_CC_LE);
3893 break;
3894
3895 /* floating point opcodes */
3896 case OP_R8CONST: {
3897 if (*((float *) ins->inst_p0) == 0) {
3898 s390_lzdr (code, ins->dreg);
3899 } else {
3900 s390_basr (code, s390_r13, 0);
3901 s390_j (code, 6);
3902 s390_llong (code, ins->inst_p0);
3903 s390_lg (code, s390_r13, 0, s390_r13, 4);
3904 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3905 }
3906 }
3907 break;
3908 case OP_R4CONST: {
3909 if (*((float *) ins->inst_p0) == 0) {
3910 s390_lzdr (code, ins->dreg);
3911 } else {
3912 s390_basr (code, s390_r13, 0);
3913 s390_j (code, 6);
3914 s390_llong(code, ins->inst_p0);
3915 s390_lg (code, s390_r13, 0, s390_r13, 4);
3916 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3917 }
3918 }
3919 break;
3920 case OP_STORER8_MEMBASE_REG: {
3921 S390_LONG (code, stdy, std, ins->sreg1, 0,
3922 ins->inst_destbasereg, ins->inst_offset);
3923 }
3924 break;
3925 case OP_LOADR8_MEMBASE: {
3926 S390_LONG (code, ldy, ld, ins->dreg, 0,
3927 ins->inst_basereg, ins->inst_offset);
3928 }
3929 break;
3930 case OP_STORER4_MEMBASE_REG: {
3931 s390_ledbr (code, s390_f15, ins->sreg1);
3932 S390_LONG (code, stey, ste, s390_f15, 0,
3933 ins->inst_destbasereg, ins->inst_offset);
3934 }
3935 break;
3936 case OP_LOADR4_MEMBASE: {
3937 S390_LONG (code, ldy, ld, s390_f15, 0,
3938 ins->inst_basereg, ins->inst_offset);
3939 s390_ldebr (code, ins->dreg, s390_f15);
3940 }
3941 break;
3942 case CEE_CONV_R_UN: {
3943 s390_cdgbr (code, ins->dreg, ins->sreg1);
3944 s390_ltgr (code, ins->sreg1, ins->sreg1);
3945 s390_jnl (code, 12);
3946 s390_basr (code, s390_r13, 0);
3947 s390_j (code, 6);
3948 s390_word (code, 0x41f00000);
3949 s390_word (code, 0);
3950 s390_adb (code, ins->dreg, 0, s390_r13, 4);
3951 }
3952 break;
3953 case OP_LCONV_TO_R4:
3954 case CEE_CONV_R4: {
3955 s390_cdgbr (code, ins->dreg, ins->sreg1);
3956 }
3957 break;
3958 case OP_LCONV_TO_R8:
3959 case CEE_CONV_R8: {
3960 s390_cdgbr (code, ins->dreg, ins->sreg1);
3961 }
3962 break;
3963 case OP_FCONV_TO_I1:
3964 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
3965 break;
3966 case OP_FCONV_TO_U1:
3967 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
3968 break;
3969 case OP_FCONV_TO_I2:
3970 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
3971 break;
3972 case OP_FCONV_TO_U2:
3973 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
3974 break;
3975 case OP_FCONV_TO_I4:
3976 case OP_FCONV_TO_I:
3977 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
3978 break;
3979 case OP_FCONV_TO_U4:
3980 case OP_FCONV_TO_U:
3981 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
3982 break;
3983 case OP_FCONV_TO_I8:
3984 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
3985 break;
3986 case OP_FCONV_TO_U8:
3987 g_assert_not_reached ();
3988 /* Implemented as helper calls */
3989 break;
3990 case OP_LCONV_TO_R_UN:
3991 g_assert_not_reached ();
3992 /* Implemented as helper calls */
3993 break;
3994 case OP_LCONV_TO_OVF_I: {
3995 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
3996 short int *o[5];
3997 s390_ltgr (code, ins->sreg2, ins->sreg2);
3998 s390_jnl (code, 0); CODEPTR(code, o[0]);
3999 s390_ltgr (code, ins->sreg1, ins->sreg1);
4000 s390_jnl (code, 0); CODEPTR(code, o[1]);
4001 s390_lhi (code, s390_r13, -1);
4002 s390_cgr (code, ins->sreg1, s390_r13);
4003 s390_jnz (code, 0); CODEPTR(code, o[2]);
4004 if (ins->dreg != ins->sreg2)
4005 s390_lgr (code, ins->dreg, ins->sreg2);
4006 s390_j (code, 0); CODEPTR(code, o[3]);
4007 PTRSLOT(code, o[0]);
4008 s390_jz (code, 0); CODEPTR(code, o[4]);
4009 PTRSLOT(code, o[1]);
4010 PTRSLOT(code, o[2]);
4011 mono_add_patch_info (cfg, code - cfg->native_code,
4012 MONO_PATCH_INFO_EXC, "OverflowException");
4013 s390_brasl (code, s390_r14, 0);
4014 PTRSLOT(code, o[3]);
4015 PTRSLOT(code, o[4]);
4016 }
4017 break;
4018 case OP_ABS: {
4019 s390_lpdbr (code, ins->dreg, ins->sreg1);
4020 }
4021 break;
4022 case OP_SQRT: {
4023 s390_sqdbr (code, ins->dreg, ins->sreg1);
4024 }
4025 break;
4026 case OP_FADD: {
4027 CHECK_SRCDST_COM_F;
4028 s390_adbr (code, ins->dreg, src2);
4029 }
4030 break;
4031 case OP_FSUB: {
4032 CHECK_SRCDST_NCOM_F;
4033 s390_sdbr (code, ins->dreg, src2);
4034 }
4035 break;
4036 case OP_FMUL: {
4037 CHECK_SRCDST_COM_F;
4038 s390_mdbr (code, ins->dreg, src2);
4039 }
4040 break;
4041 case OP_FDIV: {
4042 CHECK_SRCDST_NCOM_F;
4043 s390_ddbr (code, ins->dreg, src2);
4044 }
4045 break;
4046 case OP_FNEG: {
4047 s390_lcdbr (code, ins->dreg, ins->sreg1);
4048 }
4049 break;
4050 case OP_FREM: {
4051 CHECK_SRCDST_NCOM_F;
4052 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4053 }
4054 break;
4055 case OP_FCOMPARE: {
4056 s390_cdbr (code, ins->sreg1, ins->sreg2);
4057 }
4058 break;
4059 case OP_FCEQ: {
4060 s390_cdbr (code, ins->sreg1, ins->sreg2);
4061 s390_lghi (code, ins->dreg, 1);
4062 s390_je (code, 4);
4063 s390_lghi (code, ins->dreg, 0);
4064 }
4065 break;
4066 case OP_FCLT: {
4067 s390_cdbr (code, ins->sreg1, ins->sreg2);
4068 s390_lghi (code, ins->dreg, 1);
4069 s390_jl (code, 4);
4070 s390_lghi (code, ins->dreg, 0);
4071 }
4072 break;
4073 case OP_FCLT_UN: {
4074 s390_cdbr (code, ins->sreg1, ins->sreg2);
4075 s390_lghi (code, ins->dreg, 1);
4076 s390_jlo (code, 4);
4077 s390_lghi (code, ins->dreg, 0);
4078 }
4079 break;
4080 case OP_FCGT: {
4081 s390_cdbr (code, ins->sreg1, ins->sreg2);
4082 s390_lghi (code, ins->dreg, 1);
4083 s390_jh (code, 4);
4084 s390_lghi (code, ins->dreg, 0);
4085 }
4086 break;
4087 case OP_FCGT_UN: {
4088 s390_cdbr (code, ins->sreg1, ins->sreg2);
4089 s390_lghi (code, ins->dreg, 1);
4090 s390_jho (code, 4);
4091 s390_lghi (code, ins->dreg, 0);
4092 }
4093 break;
4094 case OP_FBEQ:
4095 EMIT_COND_BRANCH (ins, S390_CC_EQ|S390_CC_OV);
4096 break;
4097 case OP_FBNE_UN:
4098 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4099 break;
4100 case OP_FBLT:
4101 EMIT_COND_BRANCH (ins, S390_CC_LT);
4102 break;
4103 case OP_FBLT_UN:
4104 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4105 break;
4106 case OP_FBGT:
4107 EMIT_COND_BRANCH (ins, S390_CC_GT);
4108 break;
4109 case OP_FBGT_UN:
4110 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4111 break;
4112 case OP_FBGE:
4113 EMIT_COND_BRANCH (ins, S390_CC_GE);
4114 break;
4115 case OP_FBGE_UN:
4116 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4117 break;
4118 case OP_FBLE:
4119 EMIT_COND_BRANCH (ins, S390_CC_LE);
4120 break;
4121 case OP_FBLE_UN:
4122 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4123 break;
4124 case CEE_CKFINITE: {
4125 short *o;
4126 s390_lhi (code, s390_r13, 0x7f);
4127 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4128 s390_jz (code, 0); CODEPTR(code, o);
4129 mono_add_patch_info (cfg, code - cfg->native_code,
4130 MONO_PATCH_INFO_EXC, "ArithmeticException");
4131 s390_brasl (code, s390_r14,0);
4132 PTRSLOT(code, o);
4133 }
4134 break;
4135 case OP_S390_MOVE: {
4136 if (ins->unused > 0) {
4137 if (ins->unused <= 256) {
4138 s390_mvc (code, ins->unused, ins->dreg,
4139 ins->inst_offset, ins->sreg1, ins->inst_imm);
4140 } else {
4141 s390_lgr (code, s390_r0, ins->dreg);
4142 if (s390_is_imm16 (ins->inst_offset)) {
4143 s390_aghi (code, s390_r0, ins->inst_offset);
4144 } else {
4145 s390_basr (code, s390_r13, 0);
4146 s390_j (code, 6);
4147 s390_llong(code, ins->inst_offset);
4148 s390_a (code, s390_r0, 0, s390_r13, 4);
4149 }
4150 s390_lgr (code, s390_r12, ins->sreg1);
4151 if (s390_is_imm16 (ins->inst_imm)) {
4152 s390_aghi (code, s390_r12, ins->inst_imm);
4153 } else {
4154 s390_basr (code, s390_r13, 0);
4155 s390_j (code, 6);
4156 s390_llong(code, ins->inst_imm);
4157 s390_ag (code, s390_r12, 0, s390_r13, 4);
4158 }
4159 s390_lgr (code, s390_r1, ins->sreg1);
4160 s390_lgr (code, s390_r13, s390_r1);
4161 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4162 s390_jo (code, -2);
4163 }
4164 }
4165 }
4166 break;
4167 case OP_ATOMIC_ADD_I8: {
4168 s390_lgr (code, s390_r1, ins->sreg2);
4169 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4170 s390_agr (code, s390_r1, s390_r0);
4171 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4172 s390_jnz (code, -10);
4173 s390_lgr (code, ins->dreg, s390_r1);
4174 }
4175 break;
4176 case OP_ATOMIC_ADD_NEW_I8: {
4177 s390_lgr (code, s390_r1, ins->sreg2);
4178 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4179 s390_agr (code, s390_r1, s390_r0);
4180 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4181 s390_jnz (code, -10);
4182 s390_lgr (code, ins->dreg, s390_r1);
4183 }
4184 break;
4185 case OP_ATOMIC_EXCHANGE_I8: {
4186 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4187 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4188 s390_jnz (code, -6);
4189 s390_lgr (code, ins->dreg, s390_r0);
4190 }
4191 break;
4192 case OP_ATOMIC_ADD_I4: {
4193 s390_lgfr(code, s390_r1, ins->sreg2);
4194 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4195 s390_agr (code, s390_r1, s390_r0);
4196 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4197 s390_jnz (code, -9);
4198 s390_lgfr(code, ins->dreg, s390_r1);
4199 }
4200 break;
4201 case OP_ATOMIC_ADD_NEW_I4: {
4202 s390_lgfr(code, s390_r1, ins->sreg2);
4203 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4204 s390_agr (code, s390_r1, s390_r0);
4205 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4206 s390_jnz (code, -9);
4207 s390_lgfr(code, ins->dreg, s390_r1);
4208 }
4209 break;
4210 case OP_ATOMIC_EXCHANGE_I4: {
4211 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4212 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4213 s390_jnz (code, -4);
4214 s390_lgfr(code, ins->dreg, s390_r0);
4215 }
4216 break;
4217 case OP_S390_BKCHAIN: {
4218 s390_lgr (code, ins->dreg, ins->sreg1);
4219 if (s390_is_imm16 (cfg->stack_offset)) {
4220 s390_aghi (code, ins->dreg, cfg->stack_offset);
4221 } else {
4222 s390_basr (code, s390_r13, 0);
4223 s390_j (code, 6);
4224 s390_llong(code, cfg->stack_offset);
4225 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4226 }
4227 }
4228 break;
4229 case OP_MEMORY_BARRIER: {
4230 }
4231 break;
4232 default:
4233 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4234 g_assert_not_reached ();
4235 }
4236
4237 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4238 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4239 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4240 g_assert_not_reached ();
4241 }
4242
4243 cpos += max_len;
4244
4245 last_ins = ins;
4246 last_offset = offset;
4247
4248 ins = ins->next;
4249 }
4250
4251 cfg->code_len = code - cfg->native_code;
4252 }
4253
4254 /*========================= End of Function ========================*/
4255
4256 /*------------------------------------------------------------------*/
4257 /* */
4258 /* Name - mono_arch_register_lowlevel_calls */
4259 /* */
4260 /* Function - Register routines to help with --trace operation. */
4261 /* */
4262 /*------------------------------------------------------------------*/
4263
4264 void
4265 mono_arch_register_lowlevel_calls (void)
4266 {
4267 mono_register_jit_icall (mono_arch_break, "mono_arch_break", NULL, TRUE);
4268 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4269 }
4270
4271 /*========================= End of Function ========================*/
4272
4273 /*------------------------------------------------------------------*/
4274 /* */
4275 /* Name - mono_arch_break */
4276 /* */
4277 /* Function - Process a "break" operation for debugging. */
4278 /* */
4279 /*------------------------------------------------------------------*/
4280
4281 static void
4282 mono_arch_break(void) {
4283 }
4284
4285 /*========================= End of Function ========================*/
4286
4287 /*------------------------------------------------------------------*/
4288 /* */
4289 /* Name - mono_arch_patch_code */
4290 /* */
4291 /* Function - Process the patch data created during the */
4292 /* instruction build process. This resolves jumps, */
4293 /* calls, variables etc. */
4294 /* */
4295 /*------------------------------------------------------------------*/
4296
4297 void
4298 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4299 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4300 {
4301 MonoJumpInfo *patch_info;
4302
4303 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4304 unsigned char *ip = patch_info->ip.i + code;
4305 gconstpointer target = NULL;
4306
4307 target = mono_resolve_patch_target (method, domain, code,
4308 patch_info, run_cctors);
4309
4310 switch (patch_info->type) {
4311 case MONO_PATCH_INFO_IP:
4312 case MONO_PATCH_INFO_EXC_NAME:
4313 case MONO_PATCH_INFO_LDSTR:
4314 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4315 case MONO_PATCH_INFO_LDTOKEN:
4316 case MONO_PATCH_INFO_EXC:
4317 case MONO_PATCH_INFO_ABS:
4318 case MONO_PATCH_INFO_METHOD:
4319 case MONO_PATCH_INFO_INTERNAL_METHOD:
4320 case MONO_PATCH_INFO_CLASS_INIT:
4321 s390_patch_addr (ip, (guint64) target);
4322 continue;
4323 case MONO_PATCH_INFO_SWITCH:
4324 /*----------------------------------*/
4325 /* ip points at the basr r13,0/j +4 */
4326 /* instruction the vtable value */
4327 /* follows this (i.e. ip+6) */
4328 /*----------------------------------*/
4329 *((gconstpointer *)(ip+6)) = target;
4330 continue;
4331 case MONO_PATCH_INFO_METHODCONST:
4332 case MONO_PATCH_INFO_CLASS:
4333 case MONO_PATCH_INFO_IMAGE:
4334 case MONO_PATCH_INFO_FIELD:
4335 case MONO_PATCH_INFO_IID:
4336 target = S390_RELATIVE(target, ip);
4337 s390_patch_rel (ip, (guint64) target);
4338 continue;
4339 case MONO_PATCH_INFO_R4:
4340 case MONO_PATCH_INFO_R8:
4341 case MONO_PATCH_INFO_METHOD_REL:
4342 g_assert_not_reached ();
4343 continue;
4344 default:
4345 target = S390_RELATIVE(target, ip);
4346 ip += 2;
4347 s390_patch_rel (ip, (guint64) target);
4348 }
4349 }
4350 }
4351
4352 /*========================= End of Function ========================*/
4353
4354 /*------------------------------------------------------------------*/
4355 /* */
4356 /* Name - emit_load_volatile_registers */
4357 /* */
4358 /* Function - Emit the instructions to reload parameter regist- */
4359 /* registers for use with "tail" operations. */
4360 /* */
4361 /* The register loading operations performed here */
4362 /* are the mirror of the store operations performed */
4363 /* in mono_arch_emit_prolog and need to be kept in */
4364 /* synchronization with it. */
4365 /* */
4366 /*------------------------------------------------------------------*/
4367
4368 guint8 *
4369 emit_load_volatile_registers (guint8 *code, MonoCompile *cfg)
4370 {
4371 MonoInst *inst;
4372 MonoMethod *method = cfg->method;
4373 MonoMethodSignature *sig = mono_method_signature(method);
4374 int pos = 0, i;
4375 CallInfo *cinfo;
4376 size_data sz;
4377
4378 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4379
4380 if (cinfo->struct_ret) {
4381 ArgInfo *ainfo = &cinfo->ret;
4382 inst = cfg->ret;
4383 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4384 }
4385
4386 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4387 ArgInfo *ainfo = cinfo->args + i;
4388 inst = cfg->varinfo [pos];
4389
4390 if (inst->opcode == OP_REGVAR) {
4391 if (ainfo->regtype == RegTypeGeneral)
4392 s390_lgr (code, ainfo->reg, inst->dreg);
4393 else if (ainfo->regtype == RegTypeFP) {
4394 if (inst->dreg != ainfo->reg) {
4395 if (ainfo->size == 4) {
4396 s390_ldebr (code, ainfo->reg, inst->dreg);
4397 } else {
4398 s390_ldr (code, ainfo->reg, inst->dreg);
4399 }
4400 }
4401 }
4402 else if (ainfo->regtype == RegTypeBase) {
4403 } else
4404 g_assert_not_reached ();
4405 } else {
4406 if (ainfo->regtype == RegTypeGeneral) {
4407 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4408 g_assert_not_reached();
4409 switch (ainfo->size) {
4410 case 1:
4411 s390_icy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4412 break;
4413 case 2:
4414 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4415 break;
4416 case 4:
4417 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4418 break;
4419 case 8:
4420 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4421 break;
4422 }
4423 } else if (ainfo->regtype == RegTypeBase) {
4424 } else if (ainfo->regtype == RegTypeFP) {
4425 if (ainfo->size == 8)
4426 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4427 else if (ainfo->size == 4)
4428 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4429 else
4430 g_assert_not_reached ();
4431 } else if (ainfo->regtype == RegTypeStructByVal) {
4432 if (ainfo->reg != STK_BASE) {
4433 switch (ainfo->size) {
4434 case 1:
4435 s390_icy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4436 break;
4437 case 2:
4438 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4439 break;
4440 case 4:
4441 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4442 break;
4443 case 8:
4444 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4445 break;
4446 }
4447 }
4448 } else if (ainfo->regtype == RegTypeStructByAddr) {
4449 if (ainfo->reg != STK_BASE) {
4450 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4451 }
4452 } else
4453 g_assert_not_reached ();
4454 }
4455 pos++;
4456 }
4457
4458 g_free (cinfo);
4459
4460 return code;
4461 }
4462
4463 /*========================= End of Function ========================*/
4464
4465 /*------------------------------------------------------------------*/
4466 /* */
4467 /* Name - mono_arch_emit_prolog */
4468 /* */
4469 /* Function - Create the instruction sequence for a function */
4470 /* prolog. */
4471 /* */
4472 /*------------------------------------------------------------------*/
4473
4474 guint8 *
4475 mono_arch_emit_prolog (MonoCompile *cfg)
4476 {
4477 MonoMethod *method = cfg->method;
4478 MonoBasicBlock *bb;
4479 MonoMethodSignature *sig;
4480 MonoInst *inst;
4481 int alloc_size, pos, max_offset, i;
4482 guint8 *code;
4483 CallInfo *cinfo;
4484 size_data sz;
4485 int tracing = 0;
4486 int lmfOffset;
4487
4488 cfg->code_size = 512;
4489
4490 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4491 tracing = 1;
4492 cfg->code_size += 256;
4493 }
4494
4495 if (method->save_lmf)
4496 cfg->code_size += 200;
4497
4498 cfg->native_code = code = g_malloc (cfg->code_size);
4499
4500 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4501
4502 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4503 cfg->used_int_regs |= 1 << 11;
4504 }
4505
4506 alloc_size = cfg->stack_offset;
4507
4508 cfg->stack_usage = alloc_size;
4509 s390_lgr (code, s390_r11, STK_BASE);
4510 if (s390_is_uimm16 (alloc_size)) {
4511 s390_aghi (code, STK_BASE, -alloc_size);
4512 } else {
4513 int stackSize = alloc_size;
4514 while (stackSize > 32767) {
4515 s390_aghi (code, STK_BASE, -32767);
4516 stackSize -= 32767;
4517 }
4518 s390_aghi (code, STK_BASE, -stackSize);
4519 }
4520 s390_stg (code, s390_r11, 0, STK_BASE, 0);
4521
4522 if (cfg->frame_reg != STK_BASE)
4523 s390_lgr (code, s390_r11, STK_BASE);
4524
4525 /* compute max_offset in order to use short forward jumps
4526 * we always do it on s390 because the immediate displacement
4527 * for jumps is too small
4528 */
4529 max_offset = 0;
4530 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4531 MonoInst *ins = bb->code;
4532 bb->max_offset = max_offset;
4533
4534 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4535 max_offset += 6;
4536
4537 while (ins) {
4538 max_offset += ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
4539 ins = ins->next;
4540 }
4541 }
4542
4543 /* load arguments allocated to register from the stack */
4544 sig = mono_method_signature (method);
4545 pos = 0;
4546
4547 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4548
4549 if (cinfo->struct_ret) {
4550 ArgInfo *ainfo = &cinfo->ret;
4551 inst = cfg->ret;
4552 inst->unused = ainfo->vtsize;
4553 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4554 }
4555
4556 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4557 ArgInfo *ainfo = cinfo->args + i;
4558 inst = cfg->varinfo [pos];
4559
4560 if (inst->opcode == OP_REGVAR) {
4561 if (ainfo->regtype == RegTypeGeneral)
4562 s390_lgr (code, inst->dreg, ainfo->reg);
4563 else if (ainfo->regtype == RegTypeFP) {
4564 if (inst->dreg != ainfo->reg) {
4565 if (ainfo->size == 4) {
4566 s390_ledbr (code, inst->dreg, ainfo->reg);
4567 } else {
4568 s390_ldr (code, inst->dreg, ainfo->reg);
4569 }
4570 }
4571 }
4572 else if (ainfo->regtype == RegTypeBase) {
4573 s390_lgr (code, s390_r13, STK_BASE);
4574 s390_aghi (code, s390_r13, alloc_size);
4575 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
4576 } else
4577 g_assert_not_reached ();
4578
4579 if (cfg->verbose_level > 2)
4580 g_print ("Argument %d assigned to register %s\n",
4581 pos, mono_arch_regname (inst->dreg));
4582 } else {
4583 if (ainfo->regtype == RegTypeGeneral) {
4584 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4585 g_assert_not_reached();
4586 switch (ainfo->size) {
4587 case 1:
4588 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4589 break;
4590 case 2:
4591 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4592 break;
4593 case 4:
4594 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4595 break;
4596 case 8:
4597 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4598 break;
4599 }
4600 } else if (ainfo->regtype == RegTypeBase) {
4601 } else if (ainfo->regtype == RegTypeFP) {
4602 if (ainfo->size == 8)
4603 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4604 else if (ainfo->size == 4)
4605 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4606 else
4607 g_assert_not_reached ();
4608 } else if (ainfo->regtype == RegTypeStructByVal) {
4609 int doffset = inst->inst_offset;
4610 int reg;
4611 if (ainfo->reg != STK_BASE)
4612 reg = ainfo->reg;
4613 else {
4614 reg = s390_r0;
4615 s390_lgr (code, s390_r13, STK_BASE);
4616 s390_aghi (code, s390_r13, alloc_size);
4617 }
4618 switch (ainfo->size) {
4619 case 1:
4620 if (ainfo->reg == STK_BASE)
4621 s390_ic (code, reg, 0, s390_r13, ainfo->offset+7);
4622 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4623 break;
4624 case 2:
4625 if (ainfo->reg == STK_BASE)
4626 s390_lh (code, reg, 0, s390_r13, ainfo->offset+6);
4627 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4628 break;
4629 case 4:
4630 if (ainfo->reg == STK_BASE)
4631 s390_l (code, reg, 0, s390_r13, ainfo->offset+4);
4632 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4633 break;
4634 case 8:
4635 if (ainfo->reg == STK_BASE)
4636 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
4637 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
4638 break;
4639 }
4640 } else if (ainfo->regtype == RegTypeStructByAddr) {
4641 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4642 } else
4643 g_assert_not_reached ();
4644 }
4645 pos++;
4646 }
4647
4648 if (method->save_lmf) {
4649 /*---------------------------------------------------------------*/
4650 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4651 /*---------------------------------------------------------------*/
4652 lmfOffset = alloc_size - sizeof(MonoLMF);
4653
4654 s390_lgr (code, s390_r13, cfg->frame_reg);
4655 s390_aghi (code, s390_r13, lmfOffset);
4656
4657 /*---------------------------------------------------------------*/
4658 /* Preserve the parameter registers while we fix up the lmf */
4659 /*---------------------------------------------------------------*/
4660 s390_stmg (code, s390_r2, s390_r6, s390_r13,
4661 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4662
4663 /*---------------------------------------------------------------*/
4664 /* On return from this call r2 have the address of the &lmf */
4665 /*---------------------------------------------------------------*/
4666 s390_basr(code, s390_r10, 0);
4667 s390_j (code, 6);
4668 mono_add_patch_info (cfg, code - cfg->native_code,
4669 MONO_PATCH_INFO_INTERNAL_METHOD,
4670 (gpointer)"mono_get_lmf_addr");
4671 s390_llong(code, 0);
4672 s390_lg (code, s390_r1, 0, s390_r10, 4);
4673 s390_basr (code, s390_r14, s390_r1);
4674
4675 /*---------------------------------------------------------------*/
4676 /* Set lmf.lmf_addr = jit_tls->lmf */
4677 /*---------------------------------------------------------------*/
4678 s390_stg (code, s390_r2, 0, s390_r13,
4679 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4680
4681 /*---------------------------------------------------------------*/
4682 /* Get current lmf */
4683 /*---------------------------------------------------------------*/
4684 s390_lg (code, s390_r0, 0, s390_r2, 0);
4685
4686 /*---------------------------------------------------------------*/
4687 /* Set our lmf as the current lmf */
4688 /*---------------------------------------------------------------*/
4689 s390_stg (code, s390_r13, 0, s390_r2, 0);
4690
4691 /*---------------------------------------------------------------*/
4692 /* Have our lmf.previous_lmf point to the last lmf */
4693 /*---------------------------------------------------------------*/
4694 s390_stg (code, s390_r0, 0, s390_r13,
4695 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4696
4697 /*---------------------------------------------------------------*/
4698 /* save method info */
4699 /*---------------------------------------------------------------*/
4700 s390_basr (code, s390_r1, 0);
4701 s390_j (code, 6);
4702 s390_llong (code, method);
4703 s390_lg (code, s390_r1, 0, s390_r1, 4);
4704 s390_stg (code, s390_r1, 0, s390_r13,
4705 G_STRUCT_OFFSET(MonoLMF, method));
4706
4707 /*---------------------------------------------------------------*/
4708 /* save the current IP */
4709 /*---------------------------------------------------------------*/
4710 s390_stg (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4711 s390_basr (code, s390_r1, 0);
4712 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4713
4714 /*---------------------------------------------------------------*/
4715 /* Save general and floating point registers */
4716 /*---------------------------------------------------------------*/
4717 s390_stmg (code, s390_r2, s390_r12, s390_r13,
4718 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4719 for (i = 0; i < 16; i++) {
4720 s390_std (code, i, 0, s390_r13,
4721 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4722 }
4723
4724 /*---------------------------------------------------------------*/
4725 /* Restore the parameter registers now that we've set up the lmf */
4726 /*---------------------------------------------------------------*/
4727 s390_lmg (code, s390_r2, s390_r6, s390_r13,
4728 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4729 }
4730
4731 if (tracing)
4732 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4733
4734 cfg->code_len = code - cfg->native_code;
4735 g_assert (cfg->code_len < cfg->code_size);
4736
4737 g_free (cinfo);
4738
4739 return code;
4740 }
4741
4742 /*========================= End of Function ========================*/
4743
4744 /*------------------------------------------------------------------*/
4745 /* */
4746 /* Name - mono_arch_emit_epilog */
4747 /* */
4748 /* Function - Emit the instructions for a function epilog. */
4749 /* */
4750 /*------------------------------------------------------------------*/
4751
4752 void
4753 mono_arch_emit_epilog (MonoCompile *cfg)
4754 {
4755 MonoMethod *method = cfg->method;
4756 int tracing = 0;
4757 guint8 *code;
4758 int max_epilog_size = 96;
4759
4760 if (cfg->method->save_lmf)
4761 max_epilog_size += 128;
4762
4763 if (mono_jit_trace_calls != NULL)
4764 max_epilog_size += 128;
4765
4766 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4767 max_epilog_size += 128;
4768
4769 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4770 cfg->code_size *= 2;
4771 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4772 mono_jit_stats.code_reallocs++;
4773 }
4774
4775 code = cfg->native_code + cfg->code_len;
4776
4777 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4778 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4779 tracing = 1;
4780 }
4781
4782 if (method->save_lmf)
4783 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4784
4785 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4786 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
4787 else
4788 code = backUpStackPtr(cfg, code);
4789
4790 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4791 s390_br (code, s390_r14);
4792
4793 cfg->code_len = code - cfg->native_code;
4794
4795 g_assert (cfg->code_len < cfg->code_size);
4796
4797 }
4798
4799 /*========================= End of Function ========================*/
4800
4801 /*------------------------------------------------------------------*/
4802 /* */
4803 /* Name - mono_arch_emit_exceptions */
4804 /* */
4805 /* Function - Emit the blocks to handle exception conditions. */
4806 /* */
4807 /*------------------------------------------------------------------*/
4808
4809 void
4810 mono_arch_emit_exceptions (MonoCompile *cfg)
4811 {
4812 MonoJumpInfo *patch_info;
4813 guint8 *code;
4814 int nThrows = 0,
4815 exc_count = 0,
4816 iExc;
4817 guint32 code_size;
4818 MonoClass *exc_classes [MAX_EXC];
4819 guint8 *exc_throw_start [MAX_EXC],
4820 *exc_throw_end [MAX_EXC];
4821
4822 for (patch_info = cfg->patch_info;
4823 patch_info;
4824 patch_info = patch_info->next) {
4825 if (patch_info->type == MONO_PATCH_INFO_EXC)
4826 exc_count++;
4827 }
4828
4829 code_size = exc_count * 48;
4830
4831 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4832 cfg->code_size *= 2;
4833 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4834 mono_jit_stats.code_reallocs++;
4835 }
4836
4837 code = cfg->native_code + cfg->code_len;
4838
4839 /*---------------------------------------------------------------------*/
4840 /* Add code to raise exceptions */
4841 /*---------------------------------------------------------------------*/
4842 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4843 switch (patch_info->type) {
4844 case MONO_PATCH_INFO_EXC: {
4845 guint8 *ip = patch_info->ip.i + cfg->native_code;
4846 MonoClass *exc_class;
4847 guint64 throw_ip;
4848
4849 /*-----------------------------------------------------*/
4850 /* Patch the branch in epilog to come here */
4851 /*-----------------------------------------------------*/
4852 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
4853
4854 exc_class = mono_class_from_name (mono_defaults.corlib,
4855 "System",
4856 patch_info->data.name);
4857 g_assert (exc_class);
4858 throw_ip = patch_info->ip.i;
4859
4860 for (iExc = 0; iExc < nThrows; ++iExc)
4861 if (exc_classes [iExc] == exc_class)
4862 break;
4863
4864 if (iExc < nThrows) {
4865 s390_jcl (code, S390_CC_UN,
4866 (guint64) exc_throw_start [iExc]);
4867 patch_info->type = MONO_PATCH_INFO_NONE;
4868 } else {
4869
4870 if (nThrows < MAX_EXC) {
4871 exc_classes [nThrows] = exc_class;
4872 exc_throw_start [nThrows] = code;
4873 }
4874
4875 /*---------------------------------------------*/
4876 /* Patch the parameter passed to the handler */
4877 /*---------------------------------------------*/
4878 s390_basr (code, s390_r13, 0);
4879 s390_j (code, 6);
4880 s390_llong(code, patch_info->data.target);
4881 /*---------------------------------------------*/
4882 /* Load return address & parameter register */
4883 /*---------------------------------------------*/
4884 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
4885 cfg->native_code + 8), code));
4886 s390_lg (code, s390_r2, 0, s390_r13, 4);
4887 /*---------------------------------------------*/
4888 /* Reuse the current patch to set the jump */
4889 /*---------------------------------------------*/
4890 s390_basr (code, s390_r13, 0);
4891 s390_j (code, 6);
4892 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4893 patch_info->data.name = "mono_arch_throw_exception_by_name";
4894 patch_info->ip.i = code - cfg->native_code;
4895 s390_llong(code, 0);
4896 s390_lg (code, s390_r1, 0, s390_r13, 4);
4897 s390_br (code, s390_r1);
4898 }
4899 break;
4900 }
4901 default:
4902 /* do nothing */
4903 break;
4904 }
4905 }
4906
4907 cfg->code_len = code - cfg->native_code;
4908
4909 g_assert (cfg->code_len < cfg->code_size);
4910
4911 }
4912
4913 /*========================= End of Function ========================*/
4914
4915 /*------------------------------------------------------------------*/
4916 /* */
4917 /* Name - mono_arch_setup_jit_tls_data */
4918 /* */
4919 /* Function - Setup the JIT's Thread Level Specific Data. */
4920 /* */
4921 /*------------------------------------------------------------------*/
4922
4923 void
4924 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4925 {
4926 if (!tls_offset_inited) {
4927 tls_offset_inited = TRUE;
4928
4929 #if HAVE_KW_THREAD
4930 # if 0
4931 __asm__ ("\tear\t%r1,0\n"
4932 "\tlr\t%0,%3\n"
4933 "\tsr\t%0,%r1\n"
4934 "\tlr\t%1,%4\n"
4935 "\tsr\t%1,%r1\n"
4936 "\tlr\t%2,%5\n"
4937 "\tsr\t%2,%r1\n"
4938 : "=r" (appdomain_tls_offset),
4939 "=r" (thread_tls_offset),
4940 "=r" (lmf_tls_offset)
4941 : "r" (&tls_appdomain),
4942 "r" (&tls_current_object),
4943 "r" (&mono_lmf_addr)
4944 : "1", "cc");
4945 # endif
4946 #endif
4947 }
4948
4949 if (!lmf_addr_key_inited) {
4950 lmf_addr_key_inited = TRUE;
4951 pthread_key_create (&lmf_addr_key, NULL);
4952 }
4953 pthread_setspecific (lmf_addr_key, &tls->lmf);
4954
4955 }
4956
4957 /*========================= End of Function ========================*/
4958
4959 /*------------------------------------------------------------------*/
4960 /* */
4961 /* Name - mono_arch_free_jit_tls_data */
4962 /* */
4963 /* Function - Free tls data. */
4964 /* */
4965 /*------------------------------------------------------------------*/
4966
4967 void
4968 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4969 {
4970
4971 }
4972
4973 /*========================= End of Function ========================*/
4974
4975 /*------------------------------------------------------------------*/
4976 /* */
4977 /* Name - mono_arch_emit_this_vret_args */
4978 /* */
4979 /* Function - */
4980 /* */
4981 /*------------------------------------------------------------------*/
4982
4983 void
4984 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
4985 {
4986 int this_dreg = s390_r2;
4987
4988 if (vt_reg != -1)
4989 this_dreg = s390_r3;
4990
4991 /* add the this argument */
4992 if (this_reg != -1) {
4993 MonoInst *this;
4994 MONO_INST_NEW (cfg, this, OP_SETREG);
4995 this->type = this_type;
4996 this->sreg1 = this_reg;
4997 this->dreg = mono_regstate_next_int (cfg->rs);
4998 mono_bblock_add_inst (cfg->cbb, this);
4999 mono_call_inst_add_outarg_reg (cfg, inst, this->dreg, this_dreg, FALSE);
5000 }
5001
5002 if (vt_reg != -1) {
5003 MonoInst *vtarg;
5004 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
5005 vtarg->type = STACK_MP;
5006 vtarg->sreg1 = vt_reg;
5007 vtarg->dreg = mono_regstate_next_int (cfg->rs);
5008 mono_bblock_add_inst (cfg->cbb, vtarg);
5009 mono_call_inst_add_outarg_reg (cfg, inst, vtarg->dreg, s390_r2, FALSE);
5010 }
5011 }
5012
5013 /*========================= End of Function ========================*/
5014
5015 /*------------------------------------------------------------------*/
5016 /* */
5017 /* Name - mono_arch_get_inst_for_method */
5018 /* */
5019 /* Function - Check for opcodes we can handle directly in */
5020 /* hardware. */
5021 /* */
5022 /*------------------------------------------------------------------*/
5023
5024 MonoInst*
5025 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
5026 MonoMethodSignature *fsig, MonoInst **args)
5027 {
5028 MonoInst *ins = NULL;
5029
5030 if (cmethod->klass == mono_defaults.math_class) {
5031 if (strcmp (cmethod->name, "Sqrt") == 0) {
5032 MONO_INST_NEW (cfg, ins, OP_SQRT);
5033 ins->inst_i0 = args [0];
5034 }
5035 // if (strcmp (cmethod->name, "Abs") == 0) {
5036 // MONO_INST_NEW (cfg, ins, OP_ABS);
5037 // ins->inst_i0 = args [0];
5038 // }
5039 } else if (cmethod->klass == mono_defaults.thread_class &&
5040 strcmp (cmethod->name, "MemoryBarrier") == 0) {
5041 MONO_INST_NEW (cfg, ins, OP_MEMORY_BARRIER);
5042 } else if(cmethod->klass->image == mono_defaults.corlib &&
5043 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
5044 (strcmp (cmethod->klass->name, "Interlocked") == 0)) {
5045
5046 if (strcmp (cmethod->name, "Increment") == 0) {
5047 MonoInst *ins_iconst;
5048 guint32 opcode = 0;
5049
5050 if (fsig->params [0]->type == MONO_TYPE_I4)
5051 opcode = OP_ATOMIC_ADD_NEW_I4;
5052 else if (fsig->params [0]->type == MONO_TYPE_I8)
5053 opcode = OP_ATOMIC_ADD_NEW_I8;
5054 else
5055 g_assert_not_reached ();
5056
5057 MONO_INST_NEW (cfg, ins, opcode);
5058 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5059 ins_iconst->inst_c0 = 1;
5060
5061 ins->inst_i0 = args [0];
5062 ins->inst_i1 = ins_iconst;
5063 } else if (strcmp (cmethod->name, "Decrement") == 0) {
5064 MonoInst *ins_iconst;
5065 guint32 opcode = 0;
5066
5067 if (fsig->params [0]->type == MONO_TYPE_I4)
5068 opcode = OP_ATOMIC_ADD_NEW_I4;
5069 else if (fsig->params [0]->type == MONO_TYPE_I8)
5070 opcode = OP_ATOMIC_ADD_NEW_I8;
5071 else
5072 g_assert_not_reached ();
5073 MONO_INST_NEW (cfg, ins, opcode);
5074 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5075 ins_iconst->inst_c0 = -1;
5076
5077 ins->inst_i0 = args [0];
5078 ins->inst_i1 = ins_iconst;
5079 /* FIXME: */
5080 } else if (strcmp (cmethod->name, "Exchange") == 0) {
5081 guint32 opcode = 0;
5082
5083 if (fsig->params [0]->type == MONO_TYPE_I4)
5084 opcode = OP_ATOMIC_EXCHANGE_I4;
5085 else if ((fsig->params [0]->type == MONO_TYPE_I8) ||
5086 (fsig->params [0]->type == MONO_TYPE_I) ||
5087 (fsig->params [0]->type == MONO_TYPE_OBJECT))
5088 opcode = OP_ATOMIC_EXCHANGE_I8;
5089 else
5090 return NULL;
5091
5092 MONO_INST_NEW (cfg, ins, opcode);
5093
5094 ins->inst_i0 = args [0];
5095 ins->inst_i1 = args [1];
5096 } else if (strcmp (cmethod->name, "Add") == 0) {
5097 guint32 opcode = 0;
5098
5099 if (fsig->params [0]->type == MONO_TYPE_I4)
5100 opcode = OP_ATOMIC_ADD_I4;
5101 else if (fsig->params [0]->type == MONO_TYPE_I8)
5102 opcode = OP_ATOMIC_ADD_I8;
5103 else
5104 g_assert_not_reached ();
5105
5106 MONO_INST_NEW (cfg, ins, opcode);
5107
5108 ins->inst_i0 = args [0];
5109 ins->inst_i1 = args [1];
5110 } else if ((strcmp (cmethod->name, "Read") == 0 &&
5111 (fsig->params [0]->type == MONO_TYPE_I8))) {
5112 MONO_INST_NEW (cfg, ins, CEE_LDIND_I8);
5113 ins->inst_i0 = args [0];
5114 }
5115 }
5116 return ins;
5117 }
5118
5119 /*========================= End of Function ========================*/
5120
5121 /*------------------------------------------------------------------*/
5122 /* */
5123 /* Name - mono_arch_print_tree */
5124 /* */
5125 /* Function - Print platform-specific opcode details. */
5126 /* */
5127 /* Returns - 1 - opcode details have been printed */
5128 /* 0 - opcode details have not been printed */
5129 /* */
5130 /*------------------------------------------------------------------*/
5131
5132 gboolean
5133 mono_arch_print_tree (MonoInst *tree, int arity)
5134 {
5135 gboolean done;
5136
5137 switch (tree->opcode) {
5138 case OP_S390_LOADARG:
5139 case OP_S390_ARGREG:
5140 case OP_S390_ARGPTR:
5141 printf ("[0x%lx(%s)]", tree->inst_offset,
5142 mono_arch_regname (tree->inst_basereg));
5143 done = 1;
5144 break;
5145 case OP_S390_STKARG:
5146 printf ("[0x%lx(previous_frame)]",
5147 tree->inst_offset);
5148 done = 1;
5149 break;
5150 case OP_S390_MOVE:
5151 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5152 tree->inst_offset, tree->unused,
5153 mono_arch_regname(tree->dreg),
5154 tree->inst_imm,
5155 mono_arch_regname(tree->sreg1));
5156 done = 1;
5157 break;
5158 case OP_S390_SETF4RET:
5159 printf ("[f%s,f%s]",
5160 mono_arch_regname (tree->dreg),
5161 mono_arch_regname (tree->sreg1));
5162 done = 1;
5163 break;
5164 case OP_TLS_GET:
5165 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5166 tree->inst_imm,
5167 mono_arch_regname (tree->sreg1));
5168 done = 1;
5169 break;
5170 case OP_S390_BKCHAIN:
5171 printf ("[previous_frame(%s)]",
5172 mono_arch_regname (tree->sreg1));
5173 done = 1;
5174 default:
5175 done = 0;
5176 }
5177 return (done);
5178 }
5179
5180 /*========================= End of Function ========================*/
5181
5182 /*------------------------------------------------------------------*/
5183 /* */
5184 /* Name - mono_arch_regalloc_cost */
5185 /* */
5186 /* Function - Determine the cost, in the number of memory */
5187 /* references, of the action of allocating the var- */
5188 /* iable VMV into a register during global register */
5189 /* allocation. */
5190 /* */
5191 /* Returns - Cost */
5192 /* */
5193 /*------------------------------------------------------------------*/
5194
5195 guint32
5196 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5197 {
5198 /* FIXME: */
5199 return 2;
5200 }
5201
5202 /*========================= End of Function ========================*/
5203
5204 /*------------------------------------------------------------------*/
5205 /* */
5206 /* Name - mono_arch_get_domain_intrinsic */
5207 /* */
5208 /* Function - */
5209 /* */
5210 /* Returns - */
5211 /* */
5212 /*------------------------------------------------------------------*/
5213
5214 MonoInst *
5215 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5216 {
5217 MonoInst *ins;
5218
5219 if (appdomain_tls_offset == -1)
5220 return NULL;
5221
5222 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5223 ins->inst_offset = appdomain_tls_offset;
5224 return (ins);
5225 }
5226
5227 /*========================= End of Function ========================*/
5228
5229 /*------------------------------------------------------------------*/
5230 /* */
5231 /* Name - mono_arch_get_thread_intrinsic */
5232 /* */
5233 /* Function - */
5234 /* */
5235 /* Returns - */
5236 /* */
5237 /*------------------------------------------------------------------*/
5238
5239 MonoInst *
5240 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5241 {
5242 MonoInst *ins;
5243
5244 if (thread_tls_offset == -1)
5245 return NULL;
5246
5247 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5248 ins->inst_offset = thread_tls_offset;
5249 return (ins);
5250 }
5251
5252 /*========================= End of Function ========================*/
5253
5254 /*------------------------------------------------------------------*/
5255 /* */
5256 /* Name - mono_arch_flush_register_windows */
5257 /* */
5258 /* Function - */
5259 /* */
5260 /* Returns - */
5261 /* */
5262 /*------------------------------------------------------------------*/
5263
5264 void
5265 mono_arch_flush_register_windows (void)
5266 {
5267 }
5268
5269 /*========================= End of Function ========================*/
5270
5271 /*------------------------------------------------------------------*/
5272 /* */
5273 /* Name - mono_arch_get_lmf_addr */
5274 /* */
5275 /* Function - */
5276 /* */
5277 /* Returns - */
5278 /* */
5279 /*------------------------------------------------------------------*/
5280
5281 gpointer
5282 mono_arch_get_lmf_addr (void)
5283 {
5284 return pthread_getspecific (lmf_addr_key);
5285 }
5286
5287 /*========================= End of Function ========================*/
5288
5289 /*------------------------------------------------------------------*/
5290 /* */
5291 /* Name - mono_arch_is_inst_imm */
5292 /* */
5293 /* Function - Determine if operand qualifies as an immediate */
5294 /* value. For s390 this is a value -32768-32768 */
5295 /* */
5296 /* Returns - True|False - is [not] immediate value. */
5297 /* */
5298 /*------------------------------------------------------------------*/
5299
5300 gboolean
5301 mono_arch_is_inst_imm (gint64 imm)
5302 {
5303 return s390_is_imm16 (imm);
5304 }
5305
5306 /*========================= End of Function ========================*/
5307
5308 /*------------------------------------------------------------------*/
5309 /* */
5310 /* Name - opcode_to_cond */
5311 /* */
5312 /* Function - Simplify the branch on condition opcode from */
5313 /* more than 20 to just a handful for easy manipu- */
5314 /* lation within the instruction emitting code. */
5315 /* */
5316 /* Returns - CMP_xxx - this simplified condition type. */
5317 /* */
5318 /*------------------------------------------------------------------*/
5319
5320 static CompRelation
5321 opcode_to_cond (int opcode)
5322 {
5323 switch (opcode) {
5324 case CEE_BEQ:
5325 case OP_CEQ:
5326 case OP_IBEQ:
5327 case OP_ICEQ:
5328 case OP_FBEQ:
5329 case OP_FCEQ:
5330 case OP_COND_EXC_EQ:
5331 return CMP_EQ;
5332 case CEE_BNE_UN:
5333 case OP_COND_EXC_NE_UN:
5334 case OP_IBNE_UN:
5335 case OP_FBNE_UN:
5336 return CMP_NE;
5337 case CEE_BLE:
5338 case OP_IBLE:
5339 case OP_FBLE:
5340 return CMP_LE;
5341 case CEE_BGE:
5342 case OP_IBGE:
5343 case OP_FBGE:
5344 return CMP_GE;
5345 case CEE_BLT:
5346 case OP_COND_EXC_LT:
5347 case OP_CLT:
5348 case OP_IBLT:
5349 case OP_ICLT:
5350 case OP_FBLT:
5351 case OP_FCLT:
5352 return CMP_LT;
5353 case CEE_BGT:
5354 case OP_COND_EXC_GT:
5355 case OP_CGT:
5356 case OP_IBGT:
5357 case OP_ICGT:
5358 case OP_FBGT:
5359 case OP_FCGT:
5360 return CMP_GT;
5361
5362 case CEE_BLE_UN:
5363 case OP_COND_EXC_LE_UN:
5364 case OP_IBLE_UN:
5365 case OP_FBLE_UN:
5366 return CMP_LE_UN;
5367 case CEE_BGE_UN:
5368 case OP_IBGE_UN:
5369 case OP_FBGE_UN:
5370 return CMP_GE_UN;
5371 case CEE_BLT_UN:
5372 case OP_CLT_UN:
5373 case OP_IBLT_UN:
5374 case OP_ICLT_UN:
5375 case OP_FBLT_UN:
5376 case OP_FCLT_UN:
5377 case OP_COND_EXC_LT_UN:
5378 return CMP_LT_UN;
5379 case CEE_BGT_UN:
5380 case OP_COND_EXC_GT_UN:
5381 case OP_CGT_UN:
5382 case OP_IBGT_UN:
5383 case OP_ICGT_UN:
5384 case OP_FCGT_UN:
5385 case OP_FBGT_UN:
5386 return CMP_GT_UN;
5387 default:
5388 printf ("%s\n", mono_inst_name (opcode));
5389 g_error("Not implemented\n");
5390 }
5391 return CMP_EQ;
5392 }
5393
5394 /*========================= End of Function ========================*/
5395
5396 /*------------------------------------------------------------------*/
5397 /* */
5398 /* Name - mono_arch_get_patch_offset */
5399 /* */
5400 /* Function - Dummy entry point until s390x supports aot. */
5401 /* */
5402 /* Returns - Offset for patch. */
5403 /* */
5404 /*------------------------------------------------------------------*/
5405
5406 guint32
5407 mono_arch_get_patch_offset (guint8 *code)
5408 {
5409 return 0;
5410 }
5411
5412 /*========================= End of Function ========================*/
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