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* mini-s390x.c, inssel-s390x.brg: remove debug statements
[mono.git] / mono / mini / mini-s390x.c
blobc15963a615e8edffa2d4274e588eeceddc1052e4
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 guint32 stack_usage;
266 guint32 struct_ret;
267 ArgInfo ret;
268 ArgInfo sigCookie;
269 ArgInfo args [1];
270 } CallInfo;
271
272 typedef struct {
273 gint64 gr[5]; /* R2-R6 */
274 gdouble fp[3]; /* F0-F2 */
275 } __attribute__ ((packed)) RegParm;
276
277 /*========================= End of Typedefs ========================*/
278
279 /*------------------------------------------------------------------*/
280 /* P r o t o t y p e s */
281 /*------------------------------------------------------------------*/
282
283 static guint8 * emit_memcpy (guint8 *, int, int, int, int, int);
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
301 /*========================= End of Prototypes ======================*/
302
303 /*------------------------------------------------------------------*/
304 /* G l o b a l V a r i a b l e s */
305 /*------------------------------------------------------------------*/
306
307 int mono_exc_esp_offset = 0;
308
309 static int indent_level = 0;
310
311 static const char*const * ins_spec = s390x_cpu_desc;
312
313 static gboolean tls_offset_inited = FALSE;
314
315 static int appdomain_tls_offset = -1,
316 lmf_tls_offset = -1,
317 thread_tls_offset = -1;
318
319 pthread_key_t lmf_addr_key;
320
321 gboolean lmf_addr_key_inited = FALSE;
322
323 #if 0
324
325 extern __thread MonoDomain *tls_appdomain;
326 extern __thread MonoThread *tls_current_object;
327 extern __thread gpointer mono_lmf_addr;
328
329 #endif
330
331 /*====================== End of Global Variables ===================*/
332
333 /*------------------------------------------------------------------*/
334 /* */
335 /* Name - mono_arch_regname */
336 /* */
337 /* Function - Returns the name of the register specified by */
338 /* the input parameter. */
339 /* */
340 /*------------------------------------------------------------------*/
341
342 const char*
343 mono_arch_regname (int reg) {
344 static const char * rnames[] = {
345 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
346 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
347 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
348 "s390_r15"
349 };
350
351 if (reg >= 0 && reg < 16)
352 return rnames [reg];
353 else
354 return "unknown";
355 }
356
357 /*========================= End of Function ========================*/
358
359 /*------------------------------------------------------------------*/
360 /* */
361 /* Name - mono_arch_fregname */
362 /* */
363 /* Function - Returns the name of the register specified by */
364 /* the input parameter. */
365 /* */
366 /*------------------------------------------------------------------*/
367
368 const char*
369 mono_arch_fregname (int reg) {
370 static const char * rnames[] = {
371 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
372 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
373 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
374 "s390_f15"
375 };
376
377 if (reg >= 0 && reg < 16)
378 return rnames [reg];
379 else
380 return "unknown";
381 }
382
383 /*========================= End of Function ========================*/
384
385 /*------------------------------------------------------------------*/
386 /* */
387 /* Name - emit_memcpy */
388 /* */
389 /* Function - Emit code to move from memory-to-memory based on */
390 /* the size of the variable. r0 is overwritten. */
391 /* */
392 /*------------------------------------------------------------------*/
393
394 static guint8 *
395 emit_memcpy (guint8 *code, int size, int dreg, int doffset, int sreg, int soffset)
396 {
397 switch (size) {
398 case 4 :
399 s390_ly (code, s390_r0, 0, sreg, soffset);
400 s390_sty (code, s390_r0, 0, dreg, doffset);
401 break;
402
403 case 3 :
404 s390_icmy (code, s390_r0, 14, sreg, soffset);
405 s390_stcmy (code, s390_r0, 14, dreg, doffset);
406 break;
407
408 case 2 :
409 s390_lhy (code, s390_r0, 0, sreg, soffset);
410 s390_sthy (code, s390_r0, 0, dreg, doffset);
411 break;
412
413 case 1 :
414 s390_icy (code, s390_r0, 0, sreg, soffset);
415 s390_stcy (code, s390_r0, 0, dreg, doffset);
416 break;
417
418 default :
419 while (size > 0) {
420 int len;
421
422 if (size > 256)
423 len = 256;
424 else
425 len = size;
426 s390_mvc (code, len, dreg, doffset, sreg, soffset);
427 size -= len;
428 }
429 }
430 return code;
431 }
432
433 /*========================= End of Function ========================*/
434
435 /*------------------------------------------------------------------*/
436 /* */
437 /* Name - arch_get_argument_info */
438 /* */
439 /* Function - Gathers information on parameters such as size, */
440 /* alignment, and padding. arg_info should be large */
441 /* enough to hold param_count + 1 entries. */
442 /* */
443 /* Parameters - @csig - Method signature */
444 /* @param_count - No. of parameters to consider */
445 /* @arg_info - An array to store the result info */
446 /* */
447 /* Returns - Size of the activation frame */
448 /* */
449 /*------------------------------------------------------------------*/
450
451 int
452 mono_arch_get_argument_info (MonoMethodSignature *csig,
453 int param_count,
454 MonoJitArgumentInfo *arg_info)
455 {
456 int k, frame_size = 0;
457 int size, align, pad;
458 int offset = 8;
459
460 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
461 frame_size += sizeof (gpointer);
462 offset += 8;
463 }
464
465 arg_info [0].offset = offset;
466
467 if (csig->hasthis) {
468 frame_size += sizeof (gpointer);
469 offset += 8;
470 }
471
472 arg_info [0].size = frame_size;
473
474 for (k = 0; k < param_count; k++) {
475
476 if (csig->pinvoke)
477 size = mono_type_native_stack_size (csig->params [k], &align);
478 else
479 size = mono_type_stack_size (csig->params [k], &align);
480
481 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
482 arg_info [k].pad = pad;
483 frame_size += size;
484 arg_info [k + 1].pad = 0;
485 arg_info [k + 1].size = size;
486 offset += pad;
487 arg_info [k + 1].offset = offset;
488 offset += size;
489 }
490
491 align = MONO_ARCH_FRAME_ALIGNMENT;
492 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
493 arg_info [k].pad = pad;
494
495 return frame_size;
496 }
497
498 /*========================= End of Function ========================*/
499
500 /*------------------------------------------------------------------*/
501 /* */
502 /* Name - retFitsInReg. */
503 /* */
504 /* Function - Determines if a value can be returned in one or */
505 /* two registers. */
506 /* */
507 /*------------------------------------------------------------------*/
508
509 static inline gboolean
510 retFitsInReg(guint32 size)
511 {
512 switch (size) {
513 case 0:
514 case 1:
515 case 2:
516 case 4:
517 case 8:
518 return (TRUE);
519 break;
520 default:
521 return (FALSE);
522 }
523 }
524
525 /*========================= End of Function ========================*/
526
527 /*------------------------------------------------------------------*/
528 /* */
529 /* Name - backStackPtr. */
530 /* */
531 /* Function - Restore Stack Pointer to previous frame. */
532 /* */
533 /*------------------------------------------------------------------*/
534
535 static inline guint8 *
536 backUpStackPtr(MonoCompile *cfg, guint8 *code)
537 {
538 int stackSize = cfg->stack_usage;
539
540 if (s390_is_uimm16 (stackSize)) {
541 s390_aghi (code, STK_BASE, stackSize);
542 } else {
543 while (stackSize > 32767) {
544 s390_aghi (code, STK_BASE, 32767);
545 stackSize -= 32767;
546 }
547 s390_aghi (code, STK_BASE, stackSize);
548 }
549 return (code);
550 }
551
552 /*========================= End of Function ========================*/
553
554 /*------------------------------------------------------------------*/
555 /* */
556 /* Name - indent */
557 /* */
558 /* Function - Perform nice indenting to current level */
559 /* */
560 /*------------------------------------------------------------------*/
561
562 static void
563 indent (int diff) {
564 int v;
565 if (diff < 0)
566 indent_level += diff;
567 v = indent_level;
568 printf("[%3d] ",v);
569 while (v-- > 0) {
570 printf (". ");
571 }
572 if (diff > 0)
573 indent_level += diff;
574 }
575
576 /*========================= End of Function ========================*/
577
578 /*------------------------------------------------------------------*/
579 /* */
580 /* Name - decodeParm */
581 /* */
582 /* Function - Decode a parameter for the trace. */
583 /* */
584 /*------------------------------------------------------------------*/
585
586 static void
587 decodeParm(MonoType *type, void *curParm, int size)
588 {
589 guint32 simpleType;
590
591 if (type->byref) {
592 printf("[BYREF:%p], ", *((char **) curParm));
593 } else {
594 simpleType = mono_type_get_underlying_type(type)->type;
595 enum_parmtype:
596 switch (simpleType) {
597 case MONO_TYPE_I :
598 printf ("[INTPTR:%p], ", *((int **) curParm));
599 break;
600 case MONO_TYPE_U :
601 printf ("[UINTPTR:%p], ", *((int **) curParm));
602 break;
603 case MONO_TYPE_BOOLEAN :
604 printf ("[BOOL:%ld], ", *((gint64 *) curParm));
605 break;
606 case MONO_TYPE_CHAR :
607 printf ("[CHAR:%c], ", *((gint64 *) curParm));
608 break;
609 case MONO_TYPE_I1 :
610 printf ("[INT1:%ld], ", *((gint64 *) curParm));
611 break;
612 case MONO_TYPE_I2 :
613 printf ("[INT2:%ld], ", *((gint64 *) curParm));
614 break;
615 case MONO_TYPE_I4 :
616 printf ("[INT4:%ld], ", *((gint64 *) curParm));
617 break;
618 case MONO_TYPE_U1 :
619 printf ("[UINT1:%lu], ", *((guint64 *) curParm));
620 break;
621 case MONO_TYPE_U2 :
622 printf ("[UINT2:%lu], ", *((guint64 *) curParm));
623 break;
624 case MONO_TYPE_U4 :
625 printf ("[UINT4:%lu], ", *((guint64 *) curParm));
626 break;
627 case MONO_TYPE_U8 :
628 printf ("[UINT8:%lu], ", *((guint64 *) curParm));
629 break;
630 case MONO_TYPE_STRING : {
631 MonoString *s = *((MonoString **) curParm);
632 if (s) {
633 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
634 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
635 } else {
636 printf("[STRING:null], ");
637 }
638 break;
639 }
640 case MONO_TYPE_CLASS :
641 case MONO_TYPE_OBJECT : {
642 MonoObject *obj = *((MonoObject **) curParm);
643 MonoClass *class;
644 if ((obj) && (obj->vtable)) {
645 printf("[CLASS/OBJ:");
646 class = obj->vtable->klass;
647 printf("%p [%p] ",obj,curParm);
648 if (class == mono_defaults.string_class) {
649 printf("[STRING:%p:%s]",
650 *obj, mono_string_to_utf8 (obj));
651 } else if (class == mono_defaults.int32_class) {
652 printf("[INT32:%p:%d]",
653 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
654 } else
655 printf("[%s.%s:%p]",
656 class->name_space, class->name, obj);
657 printf("], ");
658 } else {
659 printf("[OBJECT:null], ");
660 }
661 break;
662 }
663 case MONO_TYPE_PTR :
664 printf("[PTR:%p], ", *((gpointer **) (curParm)));
665 break;
666 case MONO_TYPE_FNPTR :
667 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
668 break;
669 case MONO_TYPE_ARRAY :
670 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
671 break;
672 case MONO_TYPE_SZARRAY :
673 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
674 break;
675 case MONO_TYPE_I8 :
676 printf("[INT8:%ld], ", *((gint64 *) (curParm)));
677 break;
678 case MONO_TYPE_R4 :
679 printf("[FLOAT4:%g], ", *((float *) (curParm)));
680 break;
681 case MONO_TYPE_R8 :
682 printf("[FLOAT8:%g], ", *((double *) (curParm)));
683 break;
684 case MONO_TYPE_VALUETYPE : {
685 int i;
686 MonoMarshalType *info;
687
688 if (type->data.klass->enumtype) {
689 simpleType = type->data.klass->enum_basetype->type;
690 printf("{VALUETYPE} - ");
691 goto enum_parmtype;
692 }
693
694 info = mono_marshal_load_type_info (type->data.klass);
695
696 if ((info->native_size == sizeof(float)) &&
697 (info->num_fields == 1) &&
698 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
699 printf("[FLOAT4:%f], ", *((float *) (curParm)));
700 break;
701 }
702
703 if ((info->native_size == sizeof(double)) &&
704 (info->num_fields == 1) &&
705 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
706 printf("[FLOAT8:%g], ", *((double *) (curParm)));
707 break;
708 }
709
710 printf("[VALUETYPE:");
711 for (i = 0; i < size; i++)
712 printf("%02x,", *((guint8 *)curParm+i));
713 printf("]");
714 break;
715 }
716 case MONO_TYPE_TYPEDBYREF: {
717 int i;
718 printf("[TYPEDBYREF:");
719 for (i = 0; i < size; i++)
720 printf("%02x,", *((guint8 *)curParm+i));
721 printf("]");
722 break;
723 }
724 default :
725 printf("[?? - %d], ",simpleType);
726 }
727 }
728 }
729
730 /*========================= End of Function ========================*/
731
732 static int lc = 0;
733 /*------------------------------------------------------------------*/
734 /* */
735 /* Name - enter_method */
736 /* */
737 /* Function - Perform tracing of the entry to the current */
738 /* method. */
739 /* */
740 /*------------------------------------------------------------------*/
741
742 static void
743 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
744 {
745 int i, oParm = 0, iParm = 0;
746 MonoClass *class;
747 MonoObject *obj;
748 MonoMethodSignature *sig;
749 char *fname;
750 guint64 ip;
751 CallInfo *cinfo;
752 ArgInfo *ainfo;
753 size_data sz;
754 void *curParm;
755
756
757 lc++;
758 if (lc > 500000) {
759 fseek(stdout, 0L, SEEK_SET);
760 lc = 0;
761 }
762 fname = mono_method_full_name (method, TRUE);
763 indent (1);
764 printf ("ENTER: %s ", fname);
765 g_free (fname);
766
767 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
768 printf ("ip: %p sp: %p - ", (gpointer) ip, sp);
769
770 if (rParm == NULL)
771 return;
772
773 sig = mono_method_signature (method);
774
775 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
776
777 if (cinfo->struct_ret) {
778 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
779 iParm = 1;
780 }
781
782 if (sig->hasthis) {
783 gpointer *this = (gpointer *) rParm->gr[iParm];
784 obj = (MonoObject *) this;
785 if (method->klass->valuetype) {
786 if (obj) {
787 printf("this:[value:%p:%016lx], ",
788 this, *((guint64 *)(this+sizeof(MonoObject))));
789 } else
790 printf ("this:[NULL], ");
791 } else {
792 if (obj) {
793 // class = obj->vtable->klass;
794 // if (class == mono_defaults.string_class) {
795 // printf ("this:[STRING:%p:%s], ",
796 // obj, mono_string_to_utf8 ((MonoString *)obj));
797 // } else {
798 // printf ("this:%p[%s.%s], ",
799 // obj, class->name_space, class->name);
800 // }
801 printf("this:%p, ",obj);
802 } else
803 printf ("this:NULL, ");
804 }
805 oParm++;
806 }
807
808 for (i = 0; i < sig->param_count; ++i) {
809 ainfo = &cinfo->args[i + oParm];
810 switch (ainfo->regtype) {
811 case RegTypeGeneral :
812 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
813 break;
814 case RegTypeFP :
815 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
816 break;
817 case RegTypeBase :
818 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
819 break;
820 case RegTypeStructByVal :
821 if (ainfo->reg != STK_BASE)
822 curParm = &(rParm->gr[ainfo->reg-2]);
823 else
824 curParm = sp+ainfo->offset;
825
826 if (retFitsInReg (ainfo->vtsize))
827 decodeParm(sig->params[i],
828 curParm,
829 ainfo->size);
830 else
831 decodeParm(sig->params[i],
832 *((char **) curParm),
833 ainfo->vtsize);
834 break;
835 case RegTypeStructByAddr :
836 if (ainfo->reg != STK_BASE)
837 curParm = &(rParm->gr[ainfo->reg-2]);
838 else
839 curParm = sp+ainfo->offset;
840
841 decodeParm(sig->params[i],
842 *((char **) curParm),
843 ainfo->vtsize);
844 break;
845
846 default :
847 printf("???, ");
848 }
849 }
850 printf("\n");
851 g_free(cinfo);
852 }
853
854 /*========================= End of Function ========================*/
855
856 /*------------------------------------------------------------------*/
857 /* */
858 /* Name - leave_method */
859 /* */
860 /* Function - */
861 /* */
862 /*------------------------------------------------------------------*/
863
864 static void
865 leave_method (MonoMethod *method, ...)
866 {
867 MonoType *type;
868 char *fname;
869 guint64 ip;
870 va_list ap;
871
872 va_start(ap, method);
873
874 fname = mono_method_full_name (method, TRUE);
875 indent (-1);
876 printf ("LEAVE: %s", fname);
877 g_free (fname);
878
879 type = mono_method_signature (method)->ret;
880
881 handle_enum:
882 switch (type->type) {
883 case MONO_TYPE_VOID:
884 break;
885 case MONO_TYPE_BOOLEAN: {
886 int val = va_arg (ap, int);
887 if (val)
888 printf ("[TRUE:%d]", val);
889 else
890 printf ("[FALSE]");
891
892 break;
893 }
894 case MONO_TYPE_CHAR: {
895 int val = va_arg (ap, int);
896 printf ("[CHAR:%d]", val);
897 break;
898 }
899 case MONO_TYPE_I1: {
900 int val = va_arg (ap, int);
901 printf ("[INT1:%d]", val);
902 break;
903 }
904 case MONO_TYPE_U1: {
905 int val = va_arg (ap, int);
906 printf ("[UINT1:%d]", val);
907 break;
908 }
909 case MONO_TYPE_I2: {
910 int val = va_arg (ap, int);
911 printf ("[INT2:%d]", val);
912 break;
913 }
914 case MONO_TYPE_U2: {
915 int val = va_arg (ap, int);
916 printf ("[UINT2:%d]", val);
917 break;
918 }
919 case MONO_TYPE_I4: {
920 int val = va_arg (ap, int);
921 printf ("[INT4:%d]", val);
922 break;
923 }
924 case MONO_TYPE_U4: {
925 int val = va_arg (ap, int);
926 printf ("[UINT4:%d]", val);
927 break;
928 }
929 case MONO_TYPE_I: {
930 gint64 val = va_arg (ap, gint64);
931 printf ("[INT:%ld]", val);
932 printf("]");
933 break;
934 }
935 case MONO_TYPE_U: {
936 gint64 val = va_arg (ap, gint64);
937 printf ("[UINT:%lu]", val);
938 printf("]");
939 break;
940 }
941 case MONO_TYPE_STRING: {
942 MonoString *s = va_arg (ap, MonoString *);
943 ;
944 if (s) {
945 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
946 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
947 } else
948 printf ("[STRING:null], ");
949 break;
950 }
951 case MONO_TYPE_CLASS:
952 case MONO_TYPE_OBJECT: {
953 MonoObject *o = va_arg (ap, MonoObject *);
954
955 if ((o) && (o->vtable)) {
956 if (o->vtable->klass == mono_defaults.boolean_class) {
957 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
958 } else if (o->vtable->klass == mono_defaults.int32_class) {
959 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
960 } else if (o->vtable->klass == mono_defaults.int64_class) {
961 printf ("[INT64:%p:%ld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
962 } else
963 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
964 } else
965 printf ("[OBJECT:%p]", o);
966
967 break;
968 }
969 case MONO_TYPE_PTR:
970 case MONO_TYPE_FNPTR:
971 case MONO_TYPE_ARRAY:
972 case MONO_TYPE_SZARRAY: {
973 gpointer p = va_arg (ap, gpointer);
974 printf ("[result=%p]", p);
975 break;
976 }
977 case MONO_TYPE_I8: {
978 gint64 l = va_arg (ap, gint64);
979 printf ("[LONG:%ld]", l);
980 break;
981 }
982 case MONO_TYPE_U8: {
983 guint64 l = va_arg (ap, guint64);
984 printf ("[ULONG:%lu]", l);
985 break;
986 }
987 case MONO_TYPE_R4: {
988 double f = va_arg (ap, double);
989 printf ("[FLOAT4:%g]\n", f);
990 break;
991 }
992 case MONO_TYPE_R8: {
993 double f = va_arg (ap, double);
994 printf ("[FLOAT8:%g]\n", f);
995 break;
996 }
997 case MONO_TYPE_VALUETYPE: {
998 MonoMarshalType *info;
999 if (type->data.klass->enumtype) {
1000 type = type->data.klass->enum_basetype;
1001 goto handle_enum;
1002 } else {
1003 guint8 *p = va_arg (ap, gpointer);
1004 int j, size, align;
1005
1006 info = mono_marshal_load_type_info (type->data.klass);
1007
1008 if ((info->native_size == sizeof(float)) &&
1009 (info->num_fields == 1) &&
1010 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1011 double f = va_arg (ap, double);
1012 printf("[FLOAT4:%g]\n", (double) f);
1013 break;
1014 }
1015
1016 if ((info->native_size == sizeof(double)) &&
1017 (info->num_fields == 1) &&
1018 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1019 double f = va_arg (ap, double);
1020 printf("[FLOAT8:%g]\n", f);
1021 break;
1022 }
1023
1024 size = mono_type_size (type, &align);
1025 switch (size) {
1026 case 1:
1027 case 2:
1028 case 4:
1029 case 8:
1030 printf ("[");
1031 for (j = 0; p && j < size; j++)
1032 printf ("%02x,", p [j]);
1033 printf ("]\n");
1034 break;
1035 default:
1036 printf ("[VALUETYPE]\n");
1037 }
1038 }
1039 break;
1040 }
1041 case MONO_TYPE_TYPEDBYREF: {
1042 guint8 *p = va_arg (ap, gpointer);
1043 int j, size, align;
1044 size = mono_type_size (type, &align);
1045 switch (size) {
1046 case 1:
1047 case 2:
1048 case 4:
1049 case 8:
1050 printf ("[");
1051 for (j = 0; p && j < size; j++)
1052 printf ("%02x,", p [j]);
1053 printf ("]\n");
1054 break;
1055 default:
1056 printf ("[TYPEDBYREF]\n");
1057 }
1058 }
1059 break;
1060 default:
1061 printf ("(unknown return type %x)",
1062 mono_method_signature (method)->ret->type);
1063 }
1064
1065 ip = ((gint64) __builtin_return_address (0));
1066 printf (" ip: %p\n", (gpointer) ip);
1067 }
1068
1069 /*========================= End of Function ========================*/
1070
1071 /*------------------------------------------------------------------*/
1072 /* */
1073 /* Name - mono_arch_cpu_init */
1074 /* */
1075 /* Function - Perform CPU specific initialization to execute */
1076 /* managed code. */
1077 /* */
1078 /*------------------------------------------------------------------*/
1079
1080 void
1081 mono_arch_cpu_init (void)
1082 {
1083 guint mode = 1;
1084
1085 /*--------------------------------------*/
1086 /* Set default rounding mode for FP */
1087 /*--------------------------------------*/
1088 __asm__ ("SRNM\t%0\n\t"
1089 : : "m" (mode));
1090 }
1091
1092 /*========================= End of Function ========================*/
1093
1094 /*------------------------------------------------------------------*/
1095 /* */
1096 /* Name - mono_arch_cpu_optimizazions */
1097 /* */
1098 /* Function - Returns the optimizations supported on this CPU */
1099 /* */
1100 /*------------------------------------------------------------------*/
1101
1102 guint32
1103 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1104 {
1105 guint32 opts = 0;
1106
1107 /*----------------------------------------------------------*/
1108 /* no s390-specific optimizations yet */
1109 /*----------------------------------------------------------*/
1110 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1111 // *exclude_mask = MONO_OPT_INLINE;
1112 return opts;
1113 }
1114
1115 /*========================= End of Function ========================*/
1116
1117 /*------------------------------------------------------------------*/
1118 /* */
1119 /* Name - */
1120 /* */
1121 /* Function - */
1122 /* */
1123 /*------------------------------------------------------------------*/
1124
1125 static gboolean
1126 is_regsize_var (MonoType *t) {
1127 if (t->byref)
1128 return TRUE;
1129 switch (mono_type_get_underlying_type (t)->type) {
1130 case MONO_TYPE_I4:
1131 case MONO_TYPE_U4:
1132 case MONO_TYPE_I:
1133 case MONO_TYPE_I8:
1134 case MONO_TYPE_U8:
1135 case MONO_TYPE_U:
1136 return TRUE;
1137 case MONO_TYPE_OBJECT:
1138 case MONO_TYPE_STRING:
1139 case MONO_TYPE_CLASS:
1140 case MONO_TYPE_SZARRAY:
1141 case MONO_TYPE_ARRAY:
1142 return FALSE;
1143 case MONO_TYPE_VALUETYPE:
1144 if (t->data.klass->enumtype)
1145 return is_regsize_var (t->data.klass->enum_basetype);
1146 return FALSE;
1147 }
1148 return FALSE;
1149 }
1150
1151 /*========================= End of Function ========================*/
1152
1153 /*------------------------------------------------------------------*/
1154 /* */
1155 /* Name - mono_arch_get_allocatable_int_vars */
1156 /* */
1157 /* Function - */
1158 /* */
1159 /*------------------------------------------------------------------*/
1160
1161 GList *
1162 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1163 {
1164 GList *vars = NULL;
1165 int i;
1166
1167 for (i = 0; i < cfg->num_varinfo; i++) {
1168 MonoInst *ins = cfg->varinfo [i];
1169 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1170
1171 /* unused vars */
1172 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1173 continue;
1174
1175 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1176 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1177 continue;
1178
1179 /* we can only allocate 32 bit values */
1180 if (is_regsize_var (ins->inst_vtype)) {
1181 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1182 g_assert (i == vmv->idx);
1183 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1184 }
1185 }
1186
1187 return vars;
1188 }
1189
1190 /*========================= End of Function ========================*/
1191
1192 /*------------------------------------------------------------------*/
1193 /* */
1194 /* Name - mono_arch_global_int_regs */
1195 /* */
1196 /* Function - Return a list of usable integer registers. */
1197 /* */
1198 /*------------------------------------------------------------------*/
1199
1200 GList *
1201 mono_arch_get_global_int_regs (MonoCompile *cfg)
1202 {
1203 GList *regs = NULL;
1204 MonoMethodHeader *header;
1205 int i, top = 13;
1206
1207 header = mono_method_get_header (cfg->method);
1208 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1209 cfg->frame_reg = s390_r11;
1210
1211 for (i = 8; i < top; ++i) {
1212 if (cfg->frame_reg != i)
1213 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1214 }
1215
1216 return regs;
1217 }
1218
1219 /*========================= End of Function ========================*/
1220
1221 /*------------------------------------------------------------------*/
1222 /* */
1223 /* Name - mono_arch_flush_icache */
1224 /* */
1225 /* Function - Flush the CPU icache. */
1226 /* */
1227 /*------------------------------------------------------------------*/
1228
1229 void
1230 mono_arch_flush_icache (guint8 *code, gint size)
1231 {
1232 }
1233
1234 /*========================= End of Function ========================*/
1235
1236 /*------------------------------------------------------------------*/
1237 /* */
1238 /* Name - add_general */
1239 /* */
1240 /* Function - Determine code and stack size incremements for a */
1241 /* parameter. */
1242 /* */
1243 /*------------------------------------------------------------------*/
1244
1245 static void inline
1246 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1247 {
1248 if (*gr > S390_LAST_ARG_REG) {
1249 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1250 ainfo->offset = sz->stack_size;
1251 ainfo->reg = STK_BASE;
1252 ainfo->regtype = RegTypeBase;
1253 sz->stack_size += sizeof(long);
1254 sz->local_size += sizeof(long);
1255 sz->offStruct += sizeof(long);
1256 sz->code_size += 12;
1257 } else {
1258 ainfo->reg = *gr;
1259 sz->code_size += 8;
1260 }
1261 (*gr) ++;
1262 }
1263
1264 /*========================= End of Function ========================*/
1265
1266 /*------------------------------------------------------------------*/
1267 /* */
1268 /* Name - add_stackParm */
1269 /* */
1270 /* Function - Determine code and stack size incremements for a */
1271 /* parameter. */
1272 /* */
1273 /*------------------------------------------------------------------*/
1274
1275 static void inline
1276 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1277 {
1278 if (*gr > S390_LAST_ARG_REG) {
1279 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1280 ainfo->reg = STK_BASE;
1281 sz->stack_size += sizeof(gpointer);
1282 sz->offStruct += sizeof(gpointer);
1283 } else {
1284 ainfo->reg = *gr;
1285 }
1286 (*gr) ++;
1287 ainfo->offset = sz->stack_size;
1288 ainfo->offparm = sz->offset;
1289 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1290 ainfo->size = size;
1291 ainfo->regtype = RegTypeStructByAddr;
1292 ainfo->vtsize = size;
1293 sz->parm_size += size;
1294 }
1295
1296 /*========================= End of Function ========================*/
1297
1298 /*------------------------------------------------------------------*/
1299 /* */
1300 /* Name - add_float */
1301 /* */
1302 /* Function - Determine code and stack size incremements for a */
1303 /* float parameter. */
1304 /* */
1305 /*------------------------------------------------------------------*/
1306
1307 static void inline
1308 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1309 {
1310 if ((*fr) <= S390_LAST_FPARG_REG) {
1311 ainfo->regtype = RegTypeFP;
1312 ainfo->reg = *fr;
1313 sz->code_size += 4;
1314 (*fr) += 2;
1315 }
1316 else {
1317 ainfo->offset = sz->stack_size;
1318 ainfo->reg = STK_BASE;
1319 ainfo->regtype = RegTypeBase;
1320 sz->code_size += 4;
1321 sz->stack_size += sizeof(double);
1322 sz->local_size += sizeof(double);
1323 sz->offStruct += sizeof(double);
1324 }
1325 }
1326
1327 /*========================= End of Function ========================*/
1328
1329 /*------------------------------------------------------------------*/
1330 /* */
1331 /* Name - calculate_sizes */
1332 /* */
1333 /* Function - Determine the amount of space required for code */
1334 /* and stack. In addition determine starting points */
1335 /* for stack-based parameters, and area for struct- */
1336 /* ures being returned on the stack. */
1337 /* */
1338 /*------------------------------------------------------------------*/
1339
1340 static CallInfo *
1341 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1342 gboolean string_ctor)
1343 {
1344 guint i, fr, gr, size;
1345 int nParm = sig->hasthis + sig->param_count;
1346 guint32 simpletype, align;
1347 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1348
1349 fr = 0;
1350 gr = s390_r2;
1351 nParm = 0;
1352 cinfo->struct_ret = 0;
1353 sz->retStruct = 0;
1354 sz->offset = 0;
1355 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1356 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1357 sz->code_size = 0;
1358 sz->parm_size = 0;
1359 sz->local_size = 0;
1360
1361 /*----------------------------------------------------------*/
1362 /* We determine the size of the return code/stack in case we*/
1363 /* need to reserve a register to be used to address a stack */
1364 /* area that the callee will use. */
1365 /*----------------------------------------------------------*/
1366
1367 simpletype = mono_type_get_underlying_type (sig->ret)->type;
1368 enum_retvalue:
1369 switch (simpletype) {
1370 case MONO_TYPE_BOOLEAN:
1371 case MONO_TYPE_I1:
1372 case MONO_TYPE_U1:
1373 case MONO_TYPE_I2:
1374 case MONO_TYPE_U2:
1375 case MONO_TYPE_CHAR:
1376 case MONO_TYPE_I4:
1377 case MONO_TYPE_U4:
1378 case MONO_TYPE_I:
1379 case MONO_TYPE_U:
1380 case MONO_TYPE_CLASS:
1381 case MONO_TYPE_OBJECT:
1382 case MONO_TYPE_SZARRAY:
1383 case MONO_TYPE_ARRAY:
1384 case MONO_TYPE_PTR:
1385 case MONO_TYPE_FNPTR:
1386 case MONO_TYPE_STRING:
1387 cinfo->ret.reg = s390_r2;
1388 sz->code_size += 4;
1389 break;
1390 case MONO_TYPE_R4:
1391 case MONO_TYPE_R8:
1392 cinfo->ret.reg = s390_f0;
1393 sz->code_size += 4;
1394 break;
1395 case MONO_TYPE_I8:
1396 case MONO_TYPE_U8:
1397 cinfo->ret.reg = s390_r2;
1398 sz->code_size += 4;
1399 break;
1400 case MONO_TYPE_VALUETYPE: {
1401 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1402 if (sig->ret->data.klass->enumtype) {
1403 simpletype = sig->ret->data.klass->enum_basetype->type;
1404 goto enum_retvalue;
1405 }
1406 if (sig->pinvoke)
1407 size = mono_class_native_size (klass, &align);
1408 else
1409 size = mono_class_value_size (klass, &align);
1410
1411 cinfo->ret.reg = s390_r2;
1412 cinfo->struct_ret = 1;
1413 cinfo->ret.size = size;
1414 cinfo->ret.vtsize = size;
1415 gr++;
1416 break;
1417 }
1418 case MONO_TYPE_TYPEDBYREF:
1419 size = sizeof (MonoTypedRef);
1420 cinfo->ret.reg = s390_r2;
1421 cinfo->struct_ret = 1;
1422 cinfo->ret.size = size;
1423 cinfo->ret.vtsize = size;
1424 gr++;
1425 break;
1426 case MONO_TYPE_VOID:
1427 break;
1428 default:
1429 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1430 }
1431
1432 if (sig->hasthis) {
1433 cinfo->args[nParm].size = sizeof(gpointer);
1434 add_general (&gr, sz, cinfo->args+nParm);
1435 nParm++;
1436 }
1437
1438 /*----------------------------------------------------------*/
1439 /* We determine the size of the parameter code and stack */
1440 /* requirements by checking the types and sizes of the */
1441 /* parameters. */
1442 /*----------------------------------------------------------*/
1443
1444 for (i = 0; i < sig->param_count; ++i) {
1445 /*--------------------------------------------------*/
1446 /* Handle vararg type calls. All args are put on */
1447 /* the stack. */
1448 /*--------------------------------------------------*/
1449 if ((sig->call_convention == MONO_CALL_VARARG) &&
1450 (i == sig->sentinelpos)) {
1451 gr = S390_LAST_ARG_REG + 1;
1452 add_general (&gr, sz, &cinfo->sigCookie);
1453 }
1454
1455 if (sig->params [i]->byref) {
1456 add_general (&gr, sz, cinfo->args+nParm);
1457 cinfo->args[nParm].size = sizeof(gpointer);
1458 nParm++;
1459 continue;
1460 }
1461
1462 simpletype = mono_type_get_underlying_type(sig->params [i])->type;
1463 cinfo->args[nParm].type = simpletype;
1464 switch (simpletype) {
1465 case MONO_TYPE_BOOLEAN:
1466 case MONO_TYPE_I1:
1467 case MONO_TYPE_U1:
1468 cinfo->args[nParm].size = sizeof(char);
1469 add_general (&gr, sz, cinfo->args+nParm);
1470 nParm++;
1471 break;
1472 case MONO_TYPE_I2:
1473 case MONO_TYPE_U2:
1474 case MONO_TYPE_CHAR:
1475 cinfo->args[nParm].size = sizeof(short);
1476 add_general (&gr, sz, cinfo->args+nParm);
1477 nParm++;
1478 break;
1479 case MONO_TYPE_I4:
1480 case MONO_TYPE_U4:
1481 cinfo->args[nParm].size = sizeof(int);
1482 add_general (&gr, sz, cinfo->args+nParm);
1483 nParm++;
1484 break;
1485 case MONO_TYPE_I:
1486 case MONO_TYPE_U:
1487 case MONO_TYPE_PTR:
1488 case MONO_TYPE_FNPTR:
1489 case MONO_TYPE_CLASS:
1490 case MONO_TYPE_OBJECT:
1491 case MONO_TYPE_STRING:
1492 case MONO_TYPE_SZARRAY:
1493 case MONO_TYPE_ARRAY:
1494 cinfo->args[nParm].size = sizeof(gpointer);
1495 add_general (&gr, sz, cinfo->args+nParm);
1496 nParm++;
1497 break;
1498 case MONO_TYPE_I8:
1499 case MONO_TYPE_U8:
1500 cinfo->args[nParm].size = sizeof(long long);
1501 add_general (&gr, sz, cinfo->args+nParm);
1502 nParm++;
1503 break;
1504 case MONO_TYPE_R4:
1505 cinfo->args[nParm].size = sizeof(float);
1506 add_float (&fr, sz, cinfo->args+nParm);
1507 nParm++;
1508 break;
1509 case MONO_TYPE_R8:
1510 cinfo->args[nParm].size = sizeof(double);
1511 add_float (&fr, sz, cinfo->args+nParm);
1512 nParm++;
1513 break;
1514 case MONO_TYPE_VALUETYPE: {
1515 MonoMarshalType *info;
1516 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1517 if (sig->pinvoke)
1518 size = mono_class_native_size (klass, &align);
1519 else
1520 size = mono_class_value_size (klass, &align);
1521
1522 info = mono_marshal_load_type_info (klass);
1523
1524 if ((info->native_size == sizeof(float)) &&
1525 (info->num_fields == 1) &&
1526 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1527 cinfo->args[nParm].size = sizeof(float);
1528 add_float(&fr, sz, cinfo->args+nParm);
1529 break;
1530 }
1531
1532 if ((info->native_size == sizeof(double)) &&
1533 (info->num_fields == 1) &&
1534 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1535 cinfo->args[nParm].size = sizeof(double);
1536 add_float(&fr, sz, cinfo->args+nParm);
1537 break;
1538 }
1539
1540 cinfo->args[nParm].vtsize = 0;
1541 cinfo->args[nParm].size = 0;
1542
1543 switch (size) {
1544 /*----------------------------------*/
1545 /* On S/390, structures of size 1, */
1546 /* 2, 4, and 8 bytes are passed in */
1547 /* (a) register(s). */
1548 /*----------------------------------*/
1549 case 0:
1550 case 1:
1551 case 2:
1552 case 4:
1553 case 8:
1554 add_general(&gr, sz, cinfo->args+nParm);
1555 cinfo->args[nParm].size = size;
1556 cinfo->args[nParm].regtype = RegTypeStructByVal;
1557 nParm++;
1558 sz->local_size += sizeof(long);
1559 break;
1560 default:
1561 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1562 nParm++;
1563 }
1564 }
1565 break;
1566 case MONO_TYPE_TYPEDBYREF: {
1567 int size = sizeof (MonoTypedRef);
1568
1569 cinfo->args[nParm].vtsize = 0;
1570 cinfo->args[nParm].size = 0;
1571
1572 switch (size) {
1573 /*----------------------------------*/
1574 /* On S/390, structures of size 1, */
1575 /* 2, 4, and 8 bytes are passed in */
1576 /* (a) register(s). */
1577 /*----------------------------------*/
1578 case 0:
1579 case 1:
1580 case 2:
1581 case 4:
1582 case 8:
1583 add_general(&gr, sz, cinfo->args+nParm);
1584 cinfo->args[nParm].size = size;
1585 cinfo->args[nParm].regtype = RegTypeStructByVal;
1586 nParm++;
1587 sz->local_size += sizeof(long);
1588 break;
1589 default:
1590 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1591 nParm++;
1592 }
1593 }
1594 break;
1595 default:
1596 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1597 }
1598 }
1599
1600 /*----------------------------------------------------------*/
1601 /* If we are passing a structure back then if it won't be */
1602 /* in a register(s) then we make room at the end of the */
1603 /* parameters that may have been placed on the stack */
1604 /*----------------------------------------------------------*/
1605 if (cinfo->struct_ret) {
1606 cinfo->ret.offset = sz->stack_size;
1607 switch (cinfo->ret.size) {
1608 case 0:
1609 case 1:
1610 case 2:
1611 case 4:
1612 case 8:
1613 break;
1614 default:
1615 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1616 }
1617 }
1618
1619 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1620 sz->offset;
1621 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1622
1623 return (cinfo);
1624 }
1625
1626 /*========================= End of Function ========================*/
1627
1628 /*------------------------------------------------------------------*/
1629 /* */
1630 /* Name - mono_arch_allocate_vars */
1631 /* */
1632 /* Function - Set var information according to the calling */
1633 /* convention for S/390. The local var stuff should */
1634 /* most likely be split in another method. */
1635 /* */
1636 /* Parameter - @m - Compile unit. */
1637 /* */
1638 /*------------------------------------------------------------------*/
1639
1640 void
1641 mono_arch_allocate_vars (MonoCompile *cfg)
1642 {
1643 MonoMethodSignature *sig;
1644 MonoMethodHeader *header;
1645 MonoInst *inst;
1646 CallInfo *cinfo;
1647 size_data sz;
1648 int iParm, iVar, offset, size, align, curinst;
1649 int frame_reg = STK_BASE;
1650 int sArg, eArg;
1651
1652 header = mono_method_get_header (cfg->method);
1653
1654 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1655
1656 /*---------------------------------------------------------*/
1657 /* We use the frame register also for any method that has */
1658 /* filter clauses. This way, when the handlers are called, */
1659 /* the code will reference local variables using the frame */
1660 /* reg instead of the stack pointer: if we had to restore */
1661 /* the stack pointer, we'd corrupt the method frames that */
1662 /* are already on the stack (since filters get called */
1663 /* before stack unwinding happens) when the filter code */
1664 /* would call any method. */
1665 /*---------------------------------------------------------*/
1666 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1667 frame_reg = s390_r11;
1668
1669 cfg->frame_reg = frame_reg;
1670
1671 if (frame_reg != STK_BASE)
1672 cfg->used_int_regs |= 1 << frame_reg;
1673
1674 sig = mono_method_signature (cfg->method);
1675
1676 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1677
1678 if (cinfo->struct_ret) {
1679 cfg->ret->opcode = OP_REGVAR;
1680 cfg->ret->inst_c0 = s390_r2;
1681 } else {
1682 switch (mono_type_get_underlying_type (sig->ret)->type) {
1683 case MONO_TYPE_VOID:
1684 break;
1685 default:
1686 cfg->ret->opcode = OP_REGVAR;
1687 cfg->ret->dreg = s390_r2;
1688 break;
1689 }
1690 }
1691
1692 /*--------------------------------------------------------------*/
1693 /* local vars are at a positive offset from the stack pointer */
1694 /* also note that if the function uses alloca, we use s390_r11 */
1695 /* to point at the local variables. */
1696 /* add parameter area size for called functions */
1697 /*--------------------------------------------------------------*/
1698 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1699 cfg->sig_cookie = 0;
1700
1701 if (cinfo->struct_ret) {
1702 inst = cfg->ret;
1703 offset = S390_ALIGN(offset, sizeof(gpointer));
1704 inst->inst_offset = offset;
1705 inst->opcode = OP_REGOFFSET;
1706 inst->inst_basereg = frame_reg;
1707 offset += sizeof(gpointer);
1708 if ((sig->call_convention == MONO_CALL_VARARG) &&
1709 (!retFitsInReg (cinfo->ret.size)))
1710 cfg->sig_cookie += cinfo->ret.size;
1711 }
1712
1713 if (sig->hasthis) {
1714 inst = cfg->varinfo [0];
1715 if (inst->opcode != OP_REGVAR) {
1716 inst->opcode = OP_REGOFFSET;
1717 inst->inst_basereg = frame_reg;
1718 offset = S390_ALIGN(offset, sizeof(gpointer));
1719 inst->inst_offset = offset;
1720 offset += sizeof (gpointer);
1721 }
1722 curinst = sArg = 1;
1723 } else {
1724 curinst = sArg = 0;
1725 }
1726
1727 eArg = sig->param_count + sArg;
1728
1729 if (sig->call_convention == MONO_CALL_VARARG)
1730 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1731
1732 for (iParm = sArg; iParm < eArg; ++iParm) {
1733 inst = cfg->varinfo [curinst];
1734 if (inst->opcode != OP_REGVAR) {
1735 switch (cinfo->args[iParm].regtype) {
1736 case RegTypeStructByAddr :
1737 if (cinfo->args[iParm].reg == STK_BASE) {
1738 inst->opcode = OP_S390_LOADARG;
1739 inst->inst_basereg = frame_reg;
1740 offset = S390_ALIGN(offset, sizeof(long));
1741 inst->inst_offset = offset;
1742 size = abs(cinfo->args[iParm].vtsize);
1743 inst->unused = cinfo->args[iParm].offset;
1744 } else {
1745 inst->opcode = OP_S390_ARGREG;
1746 inst->inst_basereg = frame_reg;
1747 size = sizeof(gpointer);
1748 offset = S390_ALIGN(offset, size);
1749 inst->inst_offset = offset;
1750 inst->unused = cinfo->args[iParm].offset;
1751 }
1752 break;
1753 case RegTypeStructByVal :
1754 inst->opcode = OP_S390_ARGPTR;
1755 inst->inst_basereg = frame_reg;
1756 size = cinfo->args[iParm].size;
1757 offset = S390_ALIGN(offset, size);
1758 inst->inst_offset = offset;
1759 inst->unused = cinfo->args[iParm].offset;
1760 break;
1761 default :
1762 if (cinfo->args[iParm].reg != STK_BASE) {
1763 inst->opcode = OP_REGOFFSET;
1764 inst->inst_basereg = frame_reg;
1765 size = (cinfo->args[iParm].size < 8
1766 ? sizeof(int)
1767 : sizeof(long));
1768 offset = S390_ALIGN(offset, size);
1769 inst->inst_offset = offset;
1770 } else {
1771 inst->opcode = OP_S390_STKARG;
1772 inst->inst_basereg = frame_reg;
1773 size = ((cinfo->args[iParm].size < 8)
1774 ? 8 - cinfo->args[iParm].size
1775 : 0);
1776 inst->inst_offset = cinfo->args[iParm].offset +
1777 size;
1778 inst->unused = 0;
1779 size = sizeof(long);
1780 }
1781 }
1782 if ((sig->call_convention == MONO_CALL_VARARG) &&
1783 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1784 (iParm < sig->sentinelpos))
1785 cfg->sig_cookie += size;
1786
1787 offset += size;
1788 }
1789 curinst++;
1790 }
1791
1792 curinst = cfg->locals_start;
1793 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1794 inst = cfg->varinfo [iVar];
1795 if ((inst->flags & MONO_INST_IS_DEAD) ||
1796 (inst->opcode == OP_REGVAR))
1797 continue;
1798
1799 /*--------------------------------------------------*/
1800 /* inst->unused indicates native sized value types, */
1801 /* this is used by the pinvoke wrappers when they */
1802 /* call functions returning structure */
1803 /*--------------------------------------------------*/
1804 if (inst->unused && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1805 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1806 else
1807 size = mono_type_size (inst->inst_vtype, &align);
1808
1809 offset = S390_ALIGN(offset, align);
1810 inst->inst_offset = offset;
1811 inst->opcode = OP_REGOFFSET;
1812 inst->inst_basereg = frame_reg;
1813 offset += size;
1814 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
1815 iVar, inst->inst_offset, size));
1816 }
1817
1818 /*------------------------------------------------------*/
1819 /* Allow space for the trace method stack area if needed*/
1820 /*------------------------------------------------------*/
1821 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
1822 offset += S390_TRACE_STACK_SIZE;
1823
1824 /*------------------------------------------------------*/
1825 /* Reserve space to save LMF and caller saved registers */
1826 /*------------------------------------------------------*/
1827 if (cfg->method->save_lmf)
1828 offset += sizeof (MonoLMF);
1829
1830 /*------------------------------------------------------*/
1831 /* align the offset */
1832 /*------------------------------------------------------*/
1833 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1834
1835 }
1836
1837 /*========================= End of Function ========================*/
1838
1839 /*------------------------------------------------------------------*/
1840 /* */
1841 /* Name - mono_arch_call_opcode */
1842 /* */
1843 /* Function - Take the arguments and generate the arch-specific */
1844 /* instructions to properly call the function. This */
1845 /* includes pushing, moving argments to the correct */
1846 /* etc. */
1847 /* */
1848 /*------------------------------------------------------------------*/
1849
1850 MonoCallInst*
1851 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1852 MonoCallInst *call, int is_virtual) {
1853 MonoInst *in;
1854 MonoCallArgParm *arg;
1855 MonoMethodSignature *sig;
1856 int i, n, lParamArea;
1857 CallInfo *cinfo;
1858 ArgInfo *ainfo;
1859 size_data sz;
1860
1861 sig = call->signature;
1862 n = sig->param_count + sig->hasthis;
1863 DEBUG (g_print ("Call requires: %d parameters\n",n));
1864
1865 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1866
1867 call->stack_usage = MAX(sz.stack_size, call->stack_usage);
1868 lParamArea = MAX((call->stack_usage - S390_MINIMAL_STACK_SIZE - sz.parm_size), 0);
1869 cfg->param_area = MAX (((signed) cfg->param_area), lParamArea);
1870 cfg->flags |= MONO_CFG_HAS_CALLS;
1871
1872 if (cinfo->struct_ret)
1873 call->used_iregs |= 1 << cinfo->ret.reg;
1874
1875 for (i = 0; i < n; ++i) {
1876 ainfo = cinfo->args + i;
1877
1878 if ((sig->call_convention == MONO_CALL_VARARG) &&
1879 (i == sig->sentinelpos)) {
1880 MonoInst *sigArg;
1881
1882 cfg->disable_aot = TRUE;
1883 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
1884 sigArg->inst_p0 = call->signature;
1885
1886 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG_MEMBASE);
1887 arg->ins.inst_left = sigArg;
1888 arg->ins.inst_right = (MonoInst *) call;
1889 arg->size = ainfo->size;
1890 arg->offset = cinfo->sigCookie.offset;
1891 call->used_iregs |= 1 << ainfo->reg;
1892 arg->ins.next = call->out_args;
1893 call->out_args = (MonoInst *) arg;
1894 }
1895
1896 if (is_virtual && i == 0) {
1897 /* the argument will be attached to the call instrucion */
1898 in = call->args [i];
1899 call->used_iregs |= 1 << ainfo->reg;
1900 } else {
1901 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG);
1902 in = call->args [i];
1903 arg->ins.cil_code = in->cil_code;
1904 arg->ins.inst_left = in;
1905 arg->ins.type = in->type;
1906 /* prepend, we'll need to reverse them later */
1907 arg->ins.next = call->out_args;
1908 call->out_args = (MonoInst *) arg;
1909 arg->ins.inst_right = (MonoInst *) call;
1910 if (ainfo->regtype == RegTypeGeneral) {
1911 arg->ins.unused = ainfo->reg;
1912 call->used_iregs |= 1 << ainfo->reg;
1913 } else if (ainfo->regtype == RegTypeStructByAddr) {
1914 call->used_iregs |= 1 << ainfo->reg;
1915 arg->ins.sreg1 = ainfo->reg;
1916 arg->ins.opcode = OP_OUTARG_VT;
1917 arg->size = -ainfo->vtsize;
1918 arg->offset = ainfo->offset;
1919 arg->offPrm = ainfo->offparm + sz.offStruct;
1920 } else if (ainfo->regtype == RegTypeStructByVal) {
1921 if (ainfo->reg != STK_BASE)
1922 call->used_iregs |= 1 << ainfo->reg;
1923 arg->ins.sreg1 = ainfo->reg;
1924 arg->ins.opcode = OP_OUTARG_VT;
1925 arg->size = ainfo->size;
1926 arg->offset = ainfo->offset;
1927 arg->offPrm = ainfo->offparm + sz.offStruct;
1928 } else if (ainfo->regtype == RegTypeBase) {
1929 arg->ins.opcode = OP_OUTARG_MEMBASE;
1930 arg->ins.sreg1 = ainfo->reg;
1931 arg->size = ainfo->size;
1932 arg->offset = ainfo->offset;
1933 call->used_iregs |= 1 << ainfo->reg;
1934 } else if (ainfo->regtype == RegTypeFP) {
1935 arg->ins.unused = ainfo->reg;
1936 call->used_fregs |= 1 << ainfo->reg;
1937 if (ainfo->size == 4)
1938 arg->ins.opcode = OP_OUTARG_R4;
1939 else
1940 arg->ins.opcode = OP_OUTARG_R8;
1941 } else {
1942 g_assert_not_reached ();
1943 }
1944 }
1945 }
1946 /*
1947 * Reverse the call->out_args list.
1948 */
1949 {
1950 MonoInst *prev = NULL, *list = call->out_args, *next;
1951 while (list) {
1952 next = list->next;
1953 list->next = prev;
1954 prev = list;
1955 list = next;
1956 }
1957 call->out_args = prev;
1958 }
1959
1960 g_free (cinfo);
1961 return call;
1962 }
1963
1964 /*========================= End of Function ========================*/
1965
1966 /*------------------------------------------------------------------*/
1967 /* */
1968 /* Name - mono_arch_instrument_mem_needs */
1969 /* */
1970 /* Function - Allow tracing to work with this interface (with */
1971 /* an optional argument). */
1972 /* */
1973 /*------------------------------------------------------------------*/
1974
1975 void
1976 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
1977 {
1978 /* no stack room needed now (may be needed for FASTCALL-trace support) */
1979 *stack = 0;
1980 /* split prolog-epilog requirements? */
1981 *code = 50; /* max bytes needed: check this number */
1982 }
1983
1984 /*========================= End of Function ========================*/
1985
1986 /*------------------------------------------------------------------*/
1987 /* */
1988 /* Name - mono_arch_instrument_prolog */
1989 /* */
1990 /* Function - Create an "instrumented" prolog. */
1991 /* */
1992 /*------------------------------------------------------------------*/
1993
1994 void*
1995 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
1996 gboolean enable_arguments)
1997 {
1998 guchar *code = p;
1999 int parmOffset,
2000 fpOffset;
2001
2002 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2003 if (cfg->method->save_lmf)
2004 parmOffset -= sizeof(MonoLMF);
2005 fpOffset = parmOffset + (5*sizeof(gpointer));
2006
2007 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2008 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2009 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2010 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2011 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2012 s390_basr (code, s390_r13, 0);
2013 s390_j (code, 10);
2014 s390_llong(code, cfg->method);
2015 s390_llong(code, func);
2016 s390_lg (code, s390_r2, 0, s390_r13, 4);
2017 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2018 s390_lgr (code, s390_r4, STK_BASE);
2019 s390_aghi (code, s390_r4, cfg->stack_usage);
2020 s390_lg (code, s390_r1, 0, s390_r13, 12);
2021 s390_basr (code, s390_r14, s390_r1);
2022 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2023 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2024 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2025 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2026 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2027
2028 return code;
2029 }
2030
2031 /*========================= End of Function ========================*/
2032
2033 /*------------------------------------------------------------------*/
2034 /* */
2035 /* Name - mono_arch_instrument_epilog */
2036 /* */
2037 /* Function - Create an epilog that will handle the returned */
2038 /* values used in instrumentation. */
2039 /* */
2040 /*------------------------------------------------------------------*/
2041
2042 void*
2043 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2044 {
2045 guchar *code = p;
2046 int save_mode = SAVE_NONE,
2047 saveOffset;
2048 MonoMethod *method = cfg->method;
2049 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2050
2051 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2052 if (method->save_lmf)
2053 saveOffset -= sizeof(MonoLMF);
2054
2055 handle_enum:
2056 switch (rtype) {
2057 case MONO_TYPE_VOID:
2058 /* special case string .ctor icall */
2059 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2060 save_mode = SAVE_ONE;
2061 else
2062 save_mode = SAVE_NONE;
2063 break;
2064 case MONO_TYPE_I8:
2065 case MONO_TYPE_U8:
2066 save_mode = SAVE_ONE;
2067 break;
2068 case MONO_TYPE_R4:
2069 save_mode = SAVE_R4;
2070 break;
2071 case MONO_TYPE_R8:
2072 save_mode = SAVE_R8;
2073 break;
2074 case MONO_TYPE_VALUETYPE:
2075 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2076 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
2077 goto handle_enum;
2078 }
2079 save_mode = SAVE_STRUCT;
2080 break;
2081 default:
2082 save_mode = SAVE_ONE;
2083 break;
2084 }
2085
2086 switch (save_mode) {
2087 case SAVE_ONE:
2088 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2089 if (enable_arguments) {
2090 s390_lgr (code, s390_r3, s390_r2);
2091 }
2092 break;
2093 case SAVE_R4:
2094 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2095 if (enable_arguments) {
2096 s390_ldebr (code, s390_f0, s390_f0);
2097 }
2098 break;
2099 case SAVE_R8:
2100 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2101 break;
2102 case SAVE_STRUCT:
2103 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2104 if (enable_arguments) {
2105 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2106 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2107 }
2108 break;
2109 case SAVE_NONE:
2110 default:
2111 break;
2112 }
2113
2114 s390_basr (code, s390_r13, 0);
2115 s390_j (code, 10);
2116 s390_llong(code, cfg->method);
2117 s390_llong(code, func);
2118 s390_lg (code, s390_r2, 0, s390_r13, 4);
2119 s390_lg (code, s390_r1, 0, s390_r13, 12);
2120 s390_basr (code, s390_r14, s390_r1);
2121
2122 switch (save_mode) {
2123 case SAVE_ONE:
2124 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2125 break;
2126 case SAVE_R4:
2127 case SAVE_R8:
2128 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2129 break;
2130 case SAVE_STRUCT:
2131 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2132 break;
2133 case SAVE_NONE:
2134 default:
2135 break;
2136 }
2137
2138 return code;
2139 }
2140
2141 /*========================= End of Function ========================*/
2142
2143 /*------------------------------------------------------------------*/
2144 /* */
2145 /* Name - peephole_pass */
2146 /* */
2147 /* Function - Form a peephole pass at the code looking for */
2148 /* simple optimizations. */
2149 /* */
2150 /*------------------------------------------------------------------*/
2151
2152 static void
2153 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2154 {
2155 MonoInst *ins, *last_ins = NULL;
2156 ins = bb->code;
2157
2158 while (ins) {
2159
2160 switch (ins->opcode) {
2161 case OP_MUL_IMM:
2162 /* remove unnecessary multiplication with 1 */
2163 if (ins->inst_imm == 1) {
2164 if (ins->dreg != ins->sreg1) {
2165 ins->opcode = OP_MOVE;
2166 } else {
2167 last_ins->next = ins->next;
2168 ins = ins->next;
2169 continue;
2170 }
2171 }
2172 break;
2173 case OP_LOAD_MEMBASE:
2174 case OP_LOADI4_MEMBASE:
2175 /*
2176 * OP_STORE_MEMBASE_REG reg, offset(basereg)
2177 * OP_LOAD_MEMBASE offset(basereg), reg
2178 */
2179 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
2180 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
2181 ins->inst_basereg == last_ins->inst_destbasereg &&
2182 ins->inst_offset == last_ins->inst_offset) {
2183 if (ins->dreg == last_ins->sreg1) {
2184 last_ins->next = ins->next;
2185 ins = ins->next;
2186 continue;
2187 } else {
2188 ins->opcode = OP_MOVE;
2189 ins->sreg1 = last_ins->sreg1;
2190 }
2191
2192 /*
2193 * Note: reg1 must be different from the basereg in the second load
2194 * OP_LOAD_MEMBASE offset(basereg), reg1
2195 * OP_LOAD_MEMBASE offset(basereg), reg2
2196 * -->
2197 * OP_LOAD_MEMBASE offset(basereg), reg1
2198 * OP_MOVE reg1, reg2
2199 */
2200 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
2201 || last_ins->opcode == OP_LOAD_MEMBASE) &&
2202 ins->inst_basereg != last_ins->dreg &&
2203 ins->inst_basereg == last_ins->inst_basereg &&
2204 ins->inst_offset == last_ins->inst_offset) {
2205
2206 if (ins->dreg == last_ins->dreg) {
2207 last_ins->next = ins->next;
2208 ins = ins->next;
2209 continue;
2210 } else {
2211 ins->opcode = OP_MOVE;
2212 ins->sreg1 = last_ins->dreg;
2213 }
2214
2215 }
2216 break;
2217 case OP_LOADU1_MEMBASE:
2218 case OP_LOADI1_MEMBASE:
2219 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
2220 ins->inst_basereg == last_ins->inst_destbasereg &&
2221 ins->inst_offset == last_ins->inst_offset) {
2222 if (ins->dreg == last_ins->sreg1) {
2223 last_ins->next = ins->next;
2224 ins = ins->next;
2225 continue;
2226 } else {
2227 ins->opcode = OP_MOVE;
2228 ins->sreg1 = last_ins->sreg1;
2229 }
2230 }
2231 break;
2232 case OP_LOADU2_MEMBASE:
2233 case OP_LOADI2_MEMBASE:
2234 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
2235 ins->inst_basereg == last_ins->inst_destbasereg &&
2236 ins->inst_offset == last_ins->inst_offset) {
2237 if (ins->dreg == last_ins->sreg1) {
2238 last_ins->next = ins->next;
2239 ins = ins->next;
2240 continue;
2241 } else {
2242 ins->opcode = OP_MOVE;
2243 ins->sreg1 = last_ins->sreg1;
2244 }
2245 }
2246 break;
2247 case CEE_CONV_I4:
2248 case CEE_CONV_U4:
2249 case OP_MOVE:
2250 /*
2251 * OP_MOVE reg, reg
2252 */
2253 if (ins->dreg == ins->sreg1) {
2254 if (last_ins)
2255 last_ins->next = ins->next;
2256 ins = ins->next;
2257 continue;
2258 }
2259 /*
2260 * OP_MOVE sreg, dreg
2261 * OP_MOVE dreg, sreg
2262 */
2263 if (last_ins && last_ins->opcode == OP_MOVE &&
2264 ins->sreg1 == last_ins->dreg &&
2265 ins->dreg == last_ins->sreg1) {
2266 last_ins->next = ins->next;
2267 ins = ins->next;
2268 continue;
2269 }
2270 break;
2271 }
2272 last_ins = ins;
2273 ins = ins->next;
2274 }
2275 bb->last_ins = last_ins;
2276 }
2277
2278 /*========================= End of Function ========================*/
2279
2280 /*------------------------------------------------------------------*/
2281 /* */
2282 /* Name - mono_arch_local_regalloc. */
2283 /* */
2284 /* Function - We first scan the list of instructions and we */
2285 /* save the liveness information of each register */
2286 /* (when the register is first used, when its value */
2287 /* is set etc.). We also reverse the list of instr- */
2288 /* uctions (in the InstList list) because assigning */
2289 /* registers backwards allows for more tricks to be */
2290 /* used. */
2291 /* */
2292 /*------------------------------------------------------------------*/
2293
2294 void
2295 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2296 {
2297 mono_local_regalloc(cfg, bb);
2298 }
2299
2300 /*========================= End of Function ========================*/
2301
2302 /*------------------------------------------------------------------*/
2303 /* */
2304 /* Name - emit_float_to_int */
2305 /* */
2306 /* Function - Create instructions which will convert a floating */
2307 /* point value to integer. */
2308 /* */
2309 /*------------------------------------------------------------------*/
2310
2311 static guchar*
2312 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2313 {
2314 /* sreg is a float, dreg is an integer reg. */
2315 if (is_signed) {
2316 s390_cfdbr (code, dreg, 5, sreg);
2317 switch (size) {
2318 case 1:
2319 s390_lghi (code, s390_r0, 0);
2320 s390_lghi (code, s390_r13, 0xff);
2321 s390_ltgr (code, dreg, dreg);
2322 s390_jnl (code, 4);
2323 s390_lghi (code, s390_r0, 0x80);
2324 s390_ngr (code, dreg, s390_r13);
2325 s390_ogr (code, dreg, s390_r0);
2326 break;
2327 }
2328 } else {
2329 s390_basr (code, s390_r13, 0);
2330 s390_j (code, 10);
2331 s390_llong (code, 0x41e0000000000000);
2332 s390_llong (code, 0x41f0000000000000);
2333 s390_ldr (code, s390_f15, sreg);
2334 s390_cdb (code, s390_f15, 0, s390_r13, 0);
2335 s390_jl (code, 10);
2336 s390_sdb (code, s390_f15, 0, s390_r13, 8);
2337 s390_cfdbr (code, dreg, 7, s390_f15);
2338 s390_j (code, 4);
2339 s390_cfdbr (code, dreg, 5, sreg);
2340 switch (size) {
2341 case 1:
2342 s390_lghi (code, s390_r0, 0xff);
2343 s390_ngr (code, dreg, s390_r0);
2344 break;
2345 case 2:
2346 s390_lghi (code, s390_r0, -1);
2347 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2348 s390_ngr (code, dreg, s390_r0);
2349 break;
2350 }
2351 }
2352 return code;
2353 }
2354
2355 /*========================= End of Function ========================*/
2356
2357 /*------------------------------------------------------------------*/
2358 /* */
2359 /* Name - mono_arch_output_basic_block */
2360 /* */
2361 /* Function - Perform the "real" work of emitting instructions */
2362 /* that will do the work of in the basic block. */
2363 /* */
2364 /*------------------------------------------------------------------*/
2365
2366 void
2367 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2368 {
2369 MonoInst *ins;
2370 MonoCallInst *call;
2371 guint offset;
2372 guint8 *code = cfg->native_code + cfg->code_len;
2373 MonoInst *last_ins = NULL;
2374 guint last_offset = 0;
2375 int max_len, cpos, src2;
2376
2377 if (cfg->opt & MONO_OPT_PEEPHOLE)
2378 peephole_pass (cfg, bb);
2379
2380 /* we don't align basic blocks of loops on s390 */
2381
2382 if (cfg->verbose_level > 2)
2383 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2384
2385 cpos = bb->max_offset;
2386
2387 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2388 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2389 //g_assert (!mono_compile_aot);
2390 //cpos += 6;
2391 //if (bb->cil_code)
2392 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2393 /* this is not thread save, but good enough */
2394 /* fixme: howto handle overflows? */
2395 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2396 }
2397
2398 ins = bb->code;
2399 while (ins) {
2400 offset = code - cfg->native_code;
2401
2402 max_len = ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
2403
2404 if (offset > (cfg->code_size - max_len - 16)) {
2405 cfg->code_size *= 2;
2406 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2407 code = cfg->native_code + offset;
2408 }
2409
2410 mono_debug_record_line_number (cfg, ins, offset);
2411
2412 switch (ins->opcode) {
2413 case OP_STOREI1_MEMBASE_IMM: {
2414 s390_lghi (code, s390_r0, ins->inst_imm);
2415 if (s390_is_uimm20(ins->inst_offset))
2416 s390_stcy(code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2417 else {
2418 s390_basr (code, s390_r13, 0);
2419 s390_j (code, 6);
2420 s390_llong(code, ins->inst_offset);
2421 s390_lg (code, s390_r13, 0, s390_r13, 4);
2422 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2423 }
2424 }
2425 break;
2426 case OP_STOREI2_MEMBASE_IMM: {
2427 s390_lghi (code, s390_r0, ins->inst_imm);
2428 if (s390_is_uimm20(ins->inst_offset)) {
2429 s390_sthy (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2430 } else {
2431 s390_basr (code, s390_r13, 0);
2432 s390_j (code, 6);
2433 s390_llong(code, ins->inst_offset);
2434 s390_lg (code, s390_r13, 0, s390_r13, 4);
2435 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2436 }
2437 }
2438 break;
2439 case OP_STOREI4_MEMBASE_IMM: {
2440 if (s390_is_imm16(ins->inst_imm)) {
2441 s390_lghi (code, s390_r0, ins->inst_imm);
2442 } else {
2443 s390_basr (code, s390_r13, 0);
2444 s390_j (code, 6);
2445 s390_llong(code, ins->inst_imm);
2446 s390_lg (code, s390_r0, 0, s390_r13, 4);
2447 }
2448 if (s390_is_uimm20(ins->inst_offset)) {
2449 s390_sty (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2450 } else {
2451 s390_basr (code, s390_r13, 0);
2452 s390_j (code, 6);
2453 s390_llong(code, ins->inst_offset);
2454 s390_lg (code, s390_r13, 0, s390_r13, 4);
2455 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2456 }
2457 }
2458 break;
2459 case OP_STORE_MEMBASE_IMM:
2460 case OP_STOREI8_MEMBASE_IMM: {
2461 if (s390_is_imm16(ins->inst_imm)) {
2462 s390_lghi (code, s390_r0, ins->inst_imm);
2463 } else {
2464 s390_basr (code, s390_r13, 0);
2465 s390_j (code, 6);
2466 s390_llong(code, ins->inst_imm);
2467 s390_lg (code, s390_r0, 0, s390_r13, 4);
2468 }
2469 if (s390_is_uimm20(ins->inst_offset)) {
2470 s390_stg (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2471 } else {
2472 s390_basr (code, s390_r13, 0);
2473 s390_j (code, 6);
2474 s390_llong(code, ins->inst_offset);
2475 s390_lg (code, s390_r13, 0, s390_r13, 4);
2476 s390_stg (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2477 }
2478 }
2479 break;
2480 case OP_STOREI1_MEMBASE_REG: {
2481 if (s390_is_uimm20(ins->inst_offset)) {
2482 s390_stcy (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2483 } else {
2484 s390_basr (code, s390_r13, 0);
2485 s390_j (code, 6);
2486 s390_llong(code, ins->inst_offset);
2487 s390_lg (code, s390_r13, 0, s390_r13, 4);
2488 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2489 }
2490 }
2491 break;
2492 case OP_STOREI2_MEMBASE_REG: {
2493 if (s390_is_uimm20(ins->inst_offset)) {
2494 s390_sthy (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2495 } else {
2496 s390_basr (code, s390_r13, 0);
2497 s390_j (code, 6);
2498 s390_llong(code, ins->inst_offset);
2499 s390_lg (code, s390_r13, 0, s390_r13, 4);
2500 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2501 }
2502 }
2503 break;
2504 case OP_STOREI4_MEMBASE_REG: {
2505 if (s390_is_uimm20(ins->inst_offset)) {
2506 s390_sty (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2507 } else {
2508 s390_basr (code, s390_r13, 0);
2509 s390_j (code, 6);
2510 s390_llong(code, ins->inst_offset);
2511 s390_lg (code, s390_r13, 0, s390_r13, 4);
2512 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2513 }
2514 }
2515 break;
2516 case OP_STORE_MEMBASE_REG:
2517 case OP_STOREI8_MEMBASE_REG: {
2518 if (s390_is_uimm20(ins->inst_offset)) {
2519 s390_stg (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2520 } else {
2521 s390_basr (code, s390_r13, 0);
2522 s390_j (code, 6);
2523 s390_llong(code, ins->inst_offset);
2524 s390_lg (code, s390_r13, 0, s390_r13, 4);
2525 s390_stg (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2526 }
2527 }
2528 break;
2529 case CEE_LDIND_I:
2530 case CEE_LDIND_I4: {
2531 s390_basr (code, s390_r13, 0);
2532 s390_j (code, 6);
2533 s390_llong(code, ins->inst_p0);
2534 s390_lg (code, s390_r13, 0, s390_r13, 4);
2535 s390_lgf (code, ins->dreg, 0, s390_r13, 0);
2536 }
2537 break;
2538 case CEE_LDIND_U4: {
2539 s390_basr (code, s390_r13, 0);
2540 s390_j (code, 6);
2541 s390_llong(code, ins->inst_p0);
2542 s390_lg (code, s390_r13, 0, s390_r13, 4);
2543 s390_llgf (code, ins->dreg, 0, s390_r13, 0);
2544 }
2545 break;
2546 case OP_LOADU4_MEM:
2547 g_assert_not_reached ();
2548 break;
2549 case OP_LOAD_MEMBASE:
2550 case OP_LOADI8_MEMBASE: {
2551 if (s390_is_uimm20(ins->inst_offset))
2552 s390_lg (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2553 else {
2554 s390_basr (code, s390_r13, 0);
2555 s390_j (code, 6);
2556 s390_llong(code, ins->inst_offset);
2557 s390_lg (code, s390_r13, 0, s390_r13, 4);
2558 s390_lg (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2559 }
2560 }
2561 break;
2562 case OP_LOADI4_MEMBASE: {
2563 if (s390_is_uimm20(ins->inst_offset))
2564 s390_lgf (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2565 else {
2566 s390_basr (code, s390_r13, 0);
2567 s390_j (code, 6);
2568 s390_llong(code, ins->inst_offset);
2569 s390_lg (code, s390_r13, 0, s390_r13, 4);
2570 s390_lgf (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2571 }
2572 }
2573 break;
2574 case OP_LOADU4_MEMBASE: {
2575 if (s390_is_uimm20(ins->inst_offset))
2576 s390_llgf (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2577 else {
2578 s390_basr (code, s390_r13, 0);
2579 s390_j (code, 6);
2580 s390_llong(code, ins->inst_offset);
2581 s390_lg (code, s390_r13, 0, s390_r13, 4);
2582 s390_llgf (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2583 }
2584 }
2585 break;
2586 case OP_LOADU1_MEMBASE: {
2587 if (s390_is_uimm20(ins->inst_offset))
2588 s390_llgc (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2589 else {
2590 s390_basr (code, s390_r13, 0);
2591 s390_j (code, 6);
2592 s390_llong(code, ins->inst_offset);
2593 s390_lg (code, s390_r13, 0, s390_r13, 4);
2594 s390_llgc (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2595 }
2596 }
2597 break;
2598 case OP_LOADI1_MEMBASE: {
2599 if (s390_is_uimm20(ins->inst_offset))
2600 s390_lgb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2601 else {
2602 s390_basr (code, s390_r13, 0);
2603 s390_j (code, 6);
2604 s390_llong(code, ins->inst_offset);
2605 s390_lg (code, s390_r13, 0, s390_r13, 4);
2606 s390_lgb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2607 }
2608 }
2609 break;
2610 case OP_LOADU2_MEMBASE: {
2611 if (s390_is_uimm20(ins->inst_offset))
2612 s390_llgh (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2613 else {
2614 s390_basr (code, s390_r13, 0);
2615 s390_j (code, 6);
2616 s390_llong(code, ins->inst_offset);
2617 s390_lg (code, s390_r13, 0, s390_r13, 4);
2618 s390_llgh (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2619 }
2620 }
2621 break;
2622 case OP_LOADI2_MEMBASE: {
2623 if (s390_is_uimm20(ins->inst_offset))
2624 s390_lgh (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2625 else {
2626 s390_basr (code, s390_r13, 0);
2627 s390_j (code, 6);
2628 s390_llong(code, ins->inst_offset);
2629 s390_lg (code, s390_r13, 0, s390_r13, 4);
2630 s390_lgh (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2631 }
2632 }
2633 break;
2634 case CEE_CONV_I1: {
2635 s390_lghi (code, s390_r0, 0x80);
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, 8);
2643 s390_ogr (code, ins->dreg, s390_r13);
2644 }
2645 break;
2646 case CEE_CONV_I2: {
2647 s390_lghi (code, s390_r0, 0x80);
2648 s390_sllg (code, s390_r0, s390_r0, 0, 8);
2649 if (ins->dreg != ins->sreg1) {
2650 s390_lgr (code, ins->dreg, ins->sreg1);
2651 }
2652 s390_ngr (code, s390_r0, ins->sreg1);
2653 s390_jz (code, 9);
2654 s390_lghi (code, s390_r13, -1);
2655 s390_sllg (code, s390_r13, s390_r13, 0, 16);
2656 s390_ogr (code, ins->dreg, s390_r13);
2657 }
2658 break;
2659 case CEE_CONV_U1: {
2660 s390_lghi (code, s390_r0, 0xff);
2661 if (ins->dreg != ins->sreg1) {
2662 s390_lgr (code, ins->dreg, ins->sreg1);
2663 }
2664 s390_ngr (code, ins->dreg, s390_r0);
2665 }
2666 break;
2667 case CEE_CONV_U2: {
2668 s390_lghi (code, s390_r0, -1);
2669 s390_sllg (code, s390_r0, s390_r0, 0, 16);
2670 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2671 if (ins->dreg != ins->sreg1) {
2672 s390_lgr (code, ins->dreg, ins->sreg1);
2673 }
2674 s390_ngr (code, ins->dreg, s390_r0);
2675 }
2676 break;
2677 case OP_COMPARE:
2678 case OP_LCOMPARE: {
2679 if ((ins->next) &&
2680 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2681 s390_clgr (code, ins->sreg1, ins->sreg2);
2682 else
2683 s390_cgr (code, ins->sreg1, ins->sreg2);
2684 }
2685 break;
2686 case OP_COMPARE_IMM: {
2687 if (s390_is_imm16 (ins->inst_imm)) {
2688 s390_lghi (code, s390_r0, ins->inst_imm);
2689 if ((ins->next) &&
2690 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2691 s390_clgr (code, ins->sreg1, s390_r0);
2692 else
2693 s390_cgr (code, ins->sreg1, s390_r0);
2694 }
2695 else {
2696 s390_basr (code, s390_r13, 0);
2697 s390_j (code, 6);
2698 s390_llong(code, ins->inst_imm);
2699 if ((ins->next) &&
2700 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2701 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
2702 else
2703 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
2704 }
2705 }
2706 break;
2707 case OP_ICOMPARE: {
2708 if ((ins->next) &&
2709 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2710 s390_clr (code, ins->sreg1, ins->sreg2);
2711 else
2712 s390_cr (code, ins->sreg1, ins->sreg2);
2713 }
2714 break;
2715 case OP_ICOMPARE_IMM: {
2716 if (s390_is_imm16 (ins->inst_imm)) {
2717 s390_lghi (code, s390_r0, ins->inst_imm);
2718 if ((ins->next) &&
2719 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2720 s390_clr (code, ins->sreg1, s390_r0);
2721 else
2722 s390_cr (code, ins->sreg1, s390_r0);
2723 }
2724 else {
2725 s390_basr (code, s390_r13, 0);
2726 s390_j (code, 4);
2727 s390_word (code, ins->inst_imm);
2728 if ((ins->next) &&
2729 (opcode_to_cond(ins->next->opcode) >= CMP_LE_UN))
2730 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2731 else
2732 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2733 }
2734 }
2735 break;
2736 case OP_X86_TEST_NULL: {
2737 s390_ltgr (code, ins->sreg1, ins->sreg1);
2738 }
2739 break;
2740 case CEE_BREAK: {
2741 s390_basr (code, s390_r13, 0);
2742 s390_j (code, 6);
2743 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
2744 mono_arch_break);
2745 s390_llong (code, mono_arch_break);
2746 s390_lg (code, s390_r14, 0, s390_r13, 4);
2747 s390_basr (code, s390_r14, s390_r14);
2748 }
2749 break;
2750 case OP_ADDCC: {
2751 CHECK_SRCDST_COM;
2752 s390_algr (code, ins->dreg, src2);
2753 }
2754 break;
2755 case CEE_ADD: {
2756 CHECK_SRCDST_COM;
2757 s390_agr (code, ins->dreg, src2);
2758 }
2759 break;
2760 case OP_ADC: {
2761 CHECK_SRCDST_COM;
2762 s390_alcgr (code, ins->dreg, src2);
2763 }
2764 break;
2765 case OP_ADD_IMM: {
2766 if (ins->dreg != ins->sreg1) {
2767 s390_lgr (code, ins->dreg, ins->sreg1);
2768 }
2769 if (s390_is_imm16 (ins->inst_imm)) {
2770 s390_aghi (code, ins->dreg, ins->inst_imm);
2771 } else {
2772 s390_basr (code, s390_r13, 0);
2773 s390_j (code, 6);
2774 s390_llong(code, ins->inst_imm);
2775 s390_ag (code, ins->dreg, 0, s390_r13, 4);
2776 }
2777 }
2778 break;
2779 // case OP_ADDCC_IMM: {
2780 // if ((ins->next) &&
2781 // (ins->next->opcode == OP_ADC_IMM)) {
2782 // s390_basr (code, s390_r13, 0);
2783 // s390_j (code, 6);
2784 // s390_llong(code, ins->inst_imm);
2785 // if (ins->dreg != ins->sreg1) {
2786 // s390_lgr (code, ins->dreg, ins->sreg1);
2787 // }
2788 // s390_alg (code, ins->dreg, 0, s390_r13, 4);
2789 // } else {
2790 // if (s390_is_imm16 (ins->inst_imm)) {
2791 // if (ins->dreg != ins->sreg1) {
2792 // s390_lgr (code, ins->dreg, ins->sreg1);
2793 // }
2794 // s390_aghi (code, ins->dreg, ins->inst_imm);
2795 // } else {
2796 // s390_basr (code, s390_r13, 0);
2797 // s390_j (code, 6);
2798 // s390_llong(code, ins->inst_imm);
2799 // if (ins->dreg != ins->sreg1) {
2800 // s390_lgr (code, ins->dreg, ins->sreg1);
2801 // }
2802 // s390_ag (code, ins->dreg, 0, s390_r13, 4);
2803 // }
2804 // }
2805 // }
2806 // break;
2807 case OP_ADC_IMM: {
2808 if (ins->dreg != ins->sreg1) {
2809 s390_lgr (code, ins->dreg, ins->sreg1);
2810 }
2811 if (s390_is_imm16 (ins->inst_imm)) {
2812 s390_lghi (code, s390_r0, ins->inst_imm);
2813 s390_alcgr (code, ins->dreg, s390_r0);
2814 } else {
2815 s390_basr (code, s390_r13, 0);
2816 s390_j (code, 6);
2817 s390_llong (code, ins->inst_imm);
2818 s390_lg (code, s390_r13, 0, s390_r13, 4);
2819 s390_alcgr (code, ins->dreg, s390_r13);
2820 }
2821 }
2822 break;
2823 case OP_LADD_OVF: {
2824 CHECK_SRCDST_COM;
2825 s390_agr (code, ins->dreg, src2);
2826 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2827 }
2828 break;
2829 case OP_LADD_OVF_UN: {
2830 CHECK_SRCDST_COM;
2831 s390_algr (code, ins->dreg, src2);
2832 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2833 }
2834 break;
2835 case OP_ADD_OVF_CARRY: {
2836 CHECK_SRCDST_COM;
2837 s390_lghi (code, s390_r0, 0);
2838 s390_lgr (code, s390_r1, s390_r0);
2839 s390_alcgr (code, s390_r0, s390_r1);
2840 s390_agr (code, ins->dreg, src2);
2841 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2842 s390_agr (code, ins->dreg, s390_r0);
2843 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2844 }
2845 break;
2846 case OP_ADD_OVF_UN_CARRY: {
2847 CHECK_SRCDST_COM;
2848 s390_alcgr (code, ins->dreg, src2);
2849 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
2850 }
2851 break;
2852 case OP_SUBCC: {
2853 CHECK_SRCDST_NCOM;
2854 s390_slgr (code, ins->dreg, src2);
2855 }
2856 break;
2857 case CEE_SUB: {
2858 CHECK_SRCDST_NCOM;
2859 s390_sgr (code, ins->dreg, src2);
2860 }
2861 break;
2862 case OP_SBB: {
2863 CHECK_SRCDST_NCOM;
2864 s390_slbgr(code, ins->dreg, src2);
2865 }
2866 break;
2867 case OP_SUB_IMM: {
2868 if (ins->dreg != ins->sreg1) {
2869 s390_lgr (code, ins->dreg, ins->sreg1);
2870 }
2871 if (s390_is_imm16 (-ins->inst_imm)) {
2872 s390_lghi (code, s390_r0, ins->inst_imm);
2873 s390_slgr (code, ins->dreg, s390_r0);
2874 } else {
2875 s390_basr (code, s390_r13, 0);
2876 s390_j (code, 6);
2877 s390_llong(code, ins->inst_imm);
2878 s390_slg (code, ins->dreg, 0, s390_r13, 4);
2879 }
2880 }
2881 break;
2882 case OP_SBB_IMM: {
2883 if (ins->dreg != ins->sreg1) {
2884 s390_lgr (code, ins->dreg, ins->sreg1);
2885 }
2886 if (s390_is_imm16 (-ins->inst_imm)) {
2887 s390_lghi (code, s390_r0, ins->inst_imm);
2888 s390_slbgr (code, ins->dreg, s390_r0);
2889 } else {
2890 s390_basr (code, s390_r13, 0);
2891 s390_j (code, 6);
2892 s390_llong(code, ins->inst_imm);
2893 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
2894 }
2895 }
2896 break;
2897 case OP_LSUB_OVF: {
2898 CHECK_SRCDST_NCOM;
2899 s390_sgr (code, ins->dreg, src2);
2900 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2901 }
2902 break;
2903 case OP_LSUB_OVF_UN: {
2904 CHECK_SRCDST_NCOM;
2905 s390_slgr (code, ins->dreg, src2);
2906 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2907 }
2908 break;
2909 case OP_SUB_OVF_CARRY: {
2910 CHECK_SRCDST_NCOM;
2911 s390_lghi (code, s390_r0, 0);
2912 s390_lgr (code, s390_r1, s390_r0);
2913 s390_slbgr (code, s390_r0, s390_r1);
2914 s390_sgr (code, ins->dreg, src2);
2915 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2916 s390_agr (code, ins->dreg, s390_r0);
2917 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
2918 }
2919 break;
2920 case OP_SUB_OVF_UN_CARRY: {
2921 CHECK_SRCDST_NCOM;
2922 s390_slbgr (code, ins->dreg, src2);
2923 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
2924 }
2925 break;
2926 case CEE_AND: {
2927 if (ins->sreg1 == ins->dreg) {
2928 s390_ngr (code, ins->dreg, ins->sreg2);
2929 }
2930 else {
2931 if (ins->sreg2 == ins->dreg) {
2932 s390_ngr (code, ins->dreg, ins->sreg1);
2933 }
2934 else {
2935 s390_lgr (code, ins->dreg, ins->sreg1);
2936 s390_ngr (code, ins->dreg, ins->sreg2);
2937 }
2938 }
2939 }
2940 break;
2941 case OP_AND_IMM: {
2942 if (ins->dreg != ins->sreg1) {
2943 s390_lgr (code, ins->dreg, ins->sreg1);
2944 }
2945 if (s390_is_imm16 (ins->inst_imm)) {
2946 s390_lghi (code, s390_r0, ins->inst_imm);
2947 s390_ngr (code, ins->dreg, s390_r0);
2948 } else {
2949 s390_basr (code, s390_r13, 0);
2950 s390_j (code, 6);
2951 s390_llong(code, ins->inst_imm);
2952 s390_ng (code, ins->dreg, 0, s390_r13, 4);
2953 }
2954 }
2955 break;
2956 case OP_LDIV: {
2957 s390_lgr (code, s390_r1, ins->sreg1);
2958 s390_dsgr (code, s390_r0, ins->sreg2);
2959 s390_lgr (code, ins->dreg, s390_r1);
2960 }
2961 break;
2962 case OP_LDIV_UN: {
2963 s390_lgr (code, s390_r1, ins->sreg1);
2964 s390_lghi (code, s390_r0, 0);
2965 s390_dlgr (code, s390_r0, ins->sreg2);
2966 s390_lgr (code, ins->dreg, s390_r1);
2967 }
2968 break;
2969 case OP_DIV_IMM: {
2970 if (s390_is_imm16 (ins->inst_imm)) {
2971 s390_lghi (code, s390_r13, ins->inst_imm);
2972 s390_lgr (code, s390_r1, ins->sreg1);
2973 } else {
2974 s390_basr (code, s390_r13, 0);
2975 s390_j (code, 6);
2976 s390_llong(code, ins->inst_imm);
2977 s390_lgr (code, s390_r1, ins->sreg1);
2978 s390_lg (code, s390_r13, 0, s390_r13, 4);
2979 }
2980 s390_dsgr (code, s390_r0, s390_r13);
2981 s390_lgr (code, ins->dreg, s390_r1);
2982 }
2983 break;
2984 case OP_LREM: {
2985 s390_lgr (code, s390_r1, ins->sreg1);
2986 s390_dsgr (code, s390_r0, ins->sreg2);
2987 s390_lgr (code, ins->dreg, s390_r0);
2988 break;
2989 }
2990 case OP_LREM_UN: {
2991 s390_lgr (code, s390_r1, ins->sreg1);
2992 s390_lghi (code, s390_r0, 0);
2993 s390_dlgr (code, s390_r0, ins->sreg2);
2994 s390_lgr (code, ins->dreg, s390_r0);
2995 }
2996 break;
2997 case OP_REM_IMM: {
2998 if (s390_is_imm16 (ins->inst_imm)) {
2999 s390_lghi (code, s390_r13, ins->inst_imm);
3000 s390_lgr (code, s390_r0, ins->sreg1);
3001 } else {
3002 s390_basr (code, s390_r13, 0);
3003 s390_j (code, 6);
3004 s390_llong(code, ins->inst_imm);
3005 s390_lgr (code, s390_r0, ins->sreg1);
3006 s390_lg (code, s390_r13, 0, s390_r13, 4);
3007 }
3008 s390_dsgr(code, s390_r0, s390_r13);
3009 s390_lgr (code, ins->dreg, s390_r0);
3010 }
3011 break;
3012 case CEE_OR: {
3013 if (ins->sreg1 == ins->dreg) {
3014 s390_ogr (code, ins->dreg, ins->sreg2);
3015 }
3016 else {
3017 if (ins->sreg2 == ins->dreg) {
3018 s390_ogr (code, ins->dreg, ins->sreg1);
3019 }
3020 else {
3021 s390_lgr (code, ins->dreg, ins->sreg1);
3022 s390_ogr (code, ins->dreg, ins->sreg2);
3023 }
3024 }
3025 }
3026 break;
3027 case OP_OR_IMM: {
3028 if (ins->dreg != ins->sreg1) {
3029 s390_lgr (code, ins->dreg, ins->sreg1);
3030 }
3031 if (s390_is_imm16 (ins->inst_imm)) {
3032 s390_lghi (code, s390_r0, ins->inst_imm);
3033 s390_ogr (code, ins->dreg, s390_r0);
3034 } else {
3035 s390_basr (code, s390_r13, 0);
3036 s390_j (code, 6);
3037 s390_llong(code, ins->inst_imm);
3038 s390_og (code, ins->dreg, 0, s390_r13, 4);
3039 }
3040 }
3041 break;
3042 case CEE_XOR: {
3043 if (ins->sreg1 == ins->dreg) {
3044 s390_xgr (code, ins->dreg, ins->sreg2);
3045 }
3046 else {
3047 if (ins->sreg2 == ins->dreg) {
3048 s390_xgr (code, ins->dreg, ins->sreg1);
3049 }
3050 else {
3051 s390_lgr (code, ins->dreg, ins->sreg1);
3052 s390_xgr (code, ins->dreg, ins->sreg2);
3053 }
3054 }
3055 }
3056 break;
3057 case OP_XOR_IMM: {
3058 if (ins->dreg != ins->sreg1) {
3059 s390_lgr (code, ins->dreg, ins->sreg1);
3060 }
3061 if (s390_is_imm16 (ins->inst_imm)) {
3062 s390_lghi (code, s390_r0, ins->inst_imm);
3063 s390_xgr (code, ins->dreg, s390_r0);
3064 } else {
3065 s390_basr (code, s390_r13, 0);
3066 s390_j (code, 6);
3067 s390_llong(code, ins->inst_imm);
3068 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3069 }
3070 }
3071 break;
3072 case CEE_SHL:
3073 case OP_LSHL: {
3074 CHECK_SRCDST_NCOM;
3075 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3076 }
3077 break;
3078 case OP_SHL_IMM:
3079 case OP_LSHL_IMM: {
3080 if (ins->sreg1 != ins->dreg) {
3081 s390_lgr (code, ins->dreg, ins->sreg1);
3082 }
3083 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3084 }
3085 break;
3086 case CEE_SHR:
3087 case OP_LSHR: {
3088 CHECK_SRCDST_NCOM;
3089 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3090 }
3091 break;
3092 case OP_SHR_IMM:
3093 case OP_LSHR_IMM: {
3094 if (ins->sreg1 != ins->dreg) {
3095 s390_lgr (code, ins->dreg, ins->sreg1);
3096 }
3097 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3098 }
3099 break;
3100 case OP_SHR_UN_IMM:
3101 case OP_LSHR_UN_IMM: {
3102 if (ins->sreg1 != ins->dreg) {
3103 s390_lgr (code, ins->dreg, ins->sreg1);
3104 }
3105 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3106 }
3107 break;
3108 case CEE_SHR_UN:
3109 case OP_LSHR_UN: {
3110 CHECK_SRCDST_NCOM;
3111 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3112 }
3113 break;
3114 case CEE_NOT: {
3115 if (ins->sreg1 != ins->dreg) {
3116 s390_lgr (code, ins->dreg, ins->sreg1);
3117 }
3118 s390_lghi (code, s390_r0, -1);
3119 s390_xgr (code, ins->dreg, s390_r0);
3120 }
3121 break;
3122 case CEE_NEG: {
3123 s390_lcgr (code, ins->dreg, ins->sreg1);
3124 }
3125 break;
3126 case CEE_MUL:
3127 case OP_LMUL: {
3128 CHECK_SRCDST_COM;
3129 s390_msgr (code, ins->dreg, src2);
3130 }
3131 break;
3132 case OP_MUL_IMM:
3133 case OP_LMUL_IMM: {
3134 if (ins->dreg != ins->sreg1) {
3135 s390_lgr (code, ins->dreg, ins->sreg1);
3136 }
3137 if (s390_is_imm16 (ins->inst_imm)) {
3138 s390_lghi (code, s390_r13, ins->inst_imm);
3139 } else {
3140 s390_basr (code, s390_r13, 0);
3141 s390_j (code, 6);
3142 s390_llong(code, ins->inst_imm);
3143 s390_lg (code, s390_r13, 0, s390_r13, 4);
3144 }
3145 s390_msgr (code, ins->dreg, s390_r13);
3146 }
3147 break;
3148 case OP_LMUL_OVF:
3149 case CEE_MUL_OVF: {
3150 short int *o[2];
3151 s390_ltgr (code, s390_r1, ins->sreg1);
3152 s390_jz (code, 0); CODEPTR(code, o[0]);
3153 s390_ltgr (code, s390_r0, ins->sreg2);
3154 s390_jnz (code, 6);
3155 s390_lghi (code, s390_r1, 0);
3156 s390_j (code, 0); CODEPTR(code, o[1]);
3157 s390_xgr (code, s390_r0, s390_r1);
3158 s390_msgr (code, s390_r1, ins->sreg2);
3159 s390_xgr (code, s390_r0, s390_r1);
3160 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3161 s390_ltgr (code, s390_r0, s390_r0);
3162 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3163 PTRSLOT (code, o[0]);
3164 PTRSLOT (code, o[1]);
3165 s390_lgr (code, ins->dreg, s390_r1);
3166 }
3167 break;
3168 case OP_LMUL_OVF_UN:
3169 case CEE_MUL_OVF_UN: {
3170 s390_lghi (code, s390_r0, 0);
3171 s390_lgr (code, s390_r1, ins->sreg1);
3172 s390_mlgr (code, s390_r0, ins->sreg2);
3173 s390_ltgr (code, s390_r0, s390_r0);
3174 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3175 s390_lgr (code, ins->dreg, s390_r1);
3176 }
3177 break;
3178 case OP_IADDCC: {
3179 g_assert_not_reached ();
3180 CHECK_SRCDST_COM_I;
3181 s390_algr (code, ins->dreg, src2);
3182 }
3183 break;
3184 case OP_IADD: {
3185 CHECK_SRCDST_COM_I;
3186 s390_agr (code, ins->dreg, src2);
3187 }
3188 break;
3189 case OP_IADC: {
3190 g_assert_not_reached ();
3191 CHECK_SRCDST_COM_I;
3192 s390_alcgr (code, ins->dreg, src2);
3193 }
3194 break;
3195 case OP_IADD_IMM: {
3196 if (ins->dreg != ins->sreg1) {
3197 s390_lgfr (code, ins->dreg, ins->sreg1);
3198 }
3199 if (s390_is_imm16 (ins->inst_imm)) {
3200 s390_aghi(code, ins->dreg, ins->inst_imm);
3201 } else {
3202 s390_basr (code, s390_r13, 0);
3203 s390_j (code, 4);
3204 s390_word (code, ins->inst_imm);
3205 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3206 }
3207 }
3208 break;
3209 case OP_IADC_IMM: {
3210 if (ins->dreg != ins->sreg1) {
3211 s390_lgfr (code, ins->dreg, ins->sreg1);
3212 }
3213 if (s390_is_imm16 (ins->inst_imm)) {
3214 s390_lghi (code, s390_r0, ins->inst_imm);
3215 s390_alcgr (code, ins->dreg, s390_r0);
3216 } else {
3217 s390_basr (code, s390_r13, 0);
3218 s390_j (code, 4);
3219 s390_word (code, ins->inst_imm);
3220 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3221 s390_alcgr (code, ins->dreg, s390_r13);
3222 }
3223 }
3224 break;
3225 case CEE_ADD_OVF: {
3226 CHECK_SRCDST_COM;
3227 s390_ar (code, ins->dreg, src2);
3228 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3229 s390_lgfr (code, ins->dreg, ins->dreg);
3230 }
3231 break;
3232 case CEE_ADD_OVF_UN: {
3233 CHECK_SRCDST_COM;
3234 s390_algr (code, ins->dreg, src2);
3235 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3236 s390_llgfr (code, ins->dreg, ins->dreg);
3237 }
3238 break;
3239 case OP_ISUBCC: {
3240 CHECK_SRCDST_NCOM_I;
3241 s390_slgr (code, ins->dreg, src2);
3242 }
3243 break;
3244 case OP_ISUB: {
3245 CHECK_SRCDST_NCOM_I;
3246 s390_sgr (code, ins->dreg, src2);
3247 }
3248 break;
3249 case OP_ISBB: {
3250 CHECK_SRCDST_NCOM_I;
3251 s390_slbgr (code, ins->dreg, src2);
3252 }
3253 break;
3254 case OP_ISUB_IMM: {
3255 if (ins->dreg != ins->sreg1) {
3256 s390_lgfr (code, ins->dreg, ins->sreg1);
3257 }
3258 if (s390_is_imm16 (-ins->inst_imm)) {
3259 s390_aghi (code, ins->dreg, -ins->inst_imm);
3260 } else {
3261 s390_basr (code, s390_r13, 0);
3262 s390_j (code, 4);
3263 s390_word (code, ins->inst_imm);
3264 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3265 }
3266 }
3267 break;
3268 case OP_ISBB_IMM: {
3269 s390_basr (code, s390_r13, 0);
3270 s390_j (code, 4);
3271 s390_word (code, ins->inst_imm);
3272 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3273 }
3274 break;
3275 case CEE_SUB_OVF: {
3276 CHECK_SRCDST_NCOM;
3277 s390_sr (code, ins->dreg, src2);
3278 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3279 s390_lgfr (code, ins->dreg, ins->dreg);
3280 }
3281 break;
3282 case CEE_SUB_OVF_UN: {
3283 CHECK_SRCDST_NCOM;
3284 s390_slr (code, ins->dreg, src2);
3285 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3286 s390_llgfr(code, ins->dreg, ins->dreg);
3287 }
3288 break;
3289 case OP_IAND: {
3290 CHECK_SRCDST_NCOM_I;
3291 s390_ngr (code, ins->dreg, src2);
3292 }
3293 break;
3294 case OP_IAND_IMM: {
3295 if (ins->dreg != ins->sreg1) {
3296 s390_lgfr (code, ins->dreg, ins->sreg1);
3297 }
3298 if (s390_is_imm16 (ins->inst_imm)) {
3299 s390_lghi (code, s390_r0, ins->inst_imm);
3300 s390_ngr (code, ins->dreg, s390_r0);
3301 } else {
3302 s390_basr (code, s390_r13, 0);
3303 s390_j (code, 6);
3304 s390_llong(code, ins->inst_imm);
3305 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3306 }
3307 }
3308 break;
3309 case OP_IDIV: {
3310 s390_lgfr (code, s390_r0, ins->sreg1);
3311 s390_srda (code, s390_r0, 0, 32);
3312 s390_dr (code, s390_r0, ins->sreg2);
3313 s390_lgfr (code, ins->dreg, s390_r1);
3314 }
3315 break;
3316 case OP_IDIV_UN: {
3317 s390_lgfr (code, s390_r0, ins->sreg1);
3318 s390_srdl (code, s390_r0, 0, 32);
3319 s390_dlr (code, s390_r0, ins->sreg2);
3320 s390_lgfr (code, ins->dreg, s390_r1);
3321 }
3322 break;
3323 case OP_IDIV_IMM: {
3324 if (s390_is_imm16 (ins->inst_imm)) {
3325 s390_lghi (code, s390_r13, ins->inst_imm);
3326 s390_lgfr (code, s390_r0, ins->sreg1);
3327 } else {
3328 s390_basr (code, s390_r13, 0);
3329 s390_j (code, 4);
3330 s390_word (code, ins->inst_imm);
3331 s390_lgfr (code, s390_r0, ins->sreg1);
3332 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3333 }
3334 s390_srda (code, s390_r0, 0, 32);
3335 s390_dr (code, s390_r0, ins->sreg2);
3336 s390_lgfr (code, ins->dreg, s390_r1);
3337 }
3338 break;
3339 case OP_IREM: {
3340 s390_lgfr (code, s390_r0, ins->sreg1);
3341 s390_srda (code, s390_r0, 0, 32);
3342 s390_dr (code, s390_r0, ins->sreg2);
3343 s390_lgfr (code, ins->dreg, s390_r0);
3344 break;
3345 case OP_IREM_UN:
3346 s390_lgfr (code, s390_r0, ins->sreg1);
3347 s390_srdl (code, s390_r0, 0, 32);
3348 s390_dlr (code, s390_r0, ins->sreg2);
3349 s390_lgfr (code, ins->dreg, s390_r0);
3350 }
3351 break;
3352 case OP_IREM_IMM: {
3353 if (s390_is_imm16 (ins->inst_imm)) {
3354 s390_lghi (code, s390_r13, ins->inst_imm);
3355 s390_lgfr (code, s390_r0, ins->sreg1);
3356 } else {
3357 s390_basr (code, s390_r13, 0);
3358 s390_j (code, 4);
3359 s390_word (code, ins->inst_imm);
3360 s390_lgfr (code, s390_r0, ins->sreg1);
3361 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3362 }
3363 s390_srda (code, s390_r0, 0, 32);
3364 s390_dr (code, s390_r0, ins->sreg2);
3365 s390_lgfr (code, ins->dreg, s390_r0);
3366 }
3367 break;
3368 case OP_IOR: {
3369 CHECK_SRCDST_COM_I;
3370 s390_ogr (code, ins->dreg, src2);
3371 }
3372 break;
3373 case OP_IOR_IMM: {
3374 if (ins->dreg != ins->sreg1) {
3375 s390_lgfr (code, ins->dreg, ins->sreg1);
3376 }
3377 if (s390_is_imm16 (ins->inst_imm)) {
3378 s390_lghi (code, s390_r0, ins->inst_imm);
3379 s390_ogr (code, ins->dreg, s390_r0);
3380 } else {
3381 s390_basr (code, s390_r13, 0);
3382 s390_j (code, 6);
3383 s390_llong(code, ins->inst_imm);
3384 s390_og (code, ins->dreg, 0, s390_r13, 4);
3385 }
3386 }
3387 break;
3388 case OP_IXOR: {
3389 CHECK_SRCDST_COM_I;
3390 s390_xgr (code, ins->dreg, src2);
3391 }
3392 break;
3393 case OP_IXOR_IMM: {
3394 if (ins->dreg != ins->sreg1) {
3395 s390_lgfr (code, ins->dreg, ins->sreg1);
3396 }
3397 if (s390_is_imm16 (ins->inst_imm)) {
3398 s390_lghi (code, s390_r0, ins->inst_imm);
3399 s390_xgr (code, ins->dreg, s390_r0);
3400 } else {
3401 s390_basr (code, s390_r13, 0);
3402 s390_j (code, 6);
3403 s390_llong(code, ins->inst_imm);
3404 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3405 }
3406 }
3407 break;
3408 case OP_ISHL: {
3409 if (ins->sreg1 != ins->dreg) {
3410 s390_lgfr (code, ins->dreg, ins->sreg1);
3411 }
3412 s390_sll (code, ins->dreg, ins->sreg2, 0);
3413 }
3414 break;
3415 case OP_ISHL_IMM: {
3416 if (ins->sreg1 != ins->dreg) {
3417 s390_lgfr (code, ins->dreg, ins->sreg1);
3418 }
3419 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3420 }
3421 break;
3422 case OP_ISHR: {
3423 if (ins->sreg1 != ins->dreg) {
3424 s390_lgfr (code, ins->dreg, ins->sreg1);
3425 }
3426 s390_sra (code, ins->dreg, ins->sreg2, 0);
3427 }
3428 break;
3429 case OP_ISHR_IMM: {
3430 if (ins->sreg1 != ins->dreg) {
3431 s390_lgfr (code, ins->dreg, ins->sreg1);
3432 }
3433 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3434 }
3435 break;
3436 case OP_ISHR_UN_IMM: {
3437 if (ins->sreg1 != ins->dreg) {
3438 s390_lgfr (code, ins->dreg, ins->sreg1);
3439 }
3440 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3441 }
3442 break;
3443 case OP_ISHR_UN: {
3444 if (ins->sreg1 != ins->dreg) {
3445 s390_lgfr (code, ins->dreg, ins->sreg1);
3446 }
3447 s390_srl (code, ins->dreg, ins->sreg2, 0);
3448 }
3449 break;
3450 case OP_INOT: {
3451 if (ins->sreg1 != ins->dreg) {
3452 s390_lgfr (code, ins->dreg, ins->sreg1);
3453 }
3454 s390_lghi (code, s390_r0, -1);
3455 s390_xgr (code, ins->dreg, s390_r0);
3456 }
3457 break;
3458 case OP_INEG: {
3459 s390_lcgr (code, ins->dreg, ins->sreg1);
3460 }
3461 break;
3462 case OP_IMUL: {
3463 CHECK_SRCDST_COM_I;
3464 s390_msr (code, ins->dreg, src2);
3465 }
3466 break;
3467 case OP_IMUL_IMM: {
3468 if (ins->dreg != ins->sreg1) {
3469 s390_lgfr (code, ins->dreg, ins->sreg1);
3470 }
3471 if (s390_is_imm16 (ins->inst_imm)) {
3472 s390_lghi (code, s390_r13, ins->inst_imm);
3473 } else {
3474 s390_basr (code, s390_r13, 0);
3475 s390_j (code, 4);
3476 s390_word (code, ins->inst_imm);
3477 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3478 }
3479 s390_msr (code, ins->dreg, s390_r13);
3480 }
3481 break;
3482 case OP_IMUL_OVF: {
3483 short int *o[2];
3484 s390_ltr (code, s390_r1, ins->sreg1);
3485 s390_jz (code, 0); CODEPTR(code, o[0]);
3486 s390_ltr (code, s390_r0, ins->sreg2);
3487 s390_jnz (code, 6);
3488 s390_lhi (code, s390_r1, 0);
3489 s390_j (code, 0); CODEPTR(code, o[1]);
3490 s390_xr (code, s390_r0, s390_r1);
3491 s390_msr (code, s390_r1, ins->sreg2);
3492 s390_xr (code, s390_r0, s390_r1);
3493 s390_srl (code, s390_r0, 0, 31);
3494 s390_ltr (code, s390_r0, s390_r0);
3495 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3496 PTRSLOT (code, o[0]);
3497 PTRSLOT (code, o[1]);
3498 s390_lgfr (code, ins->dreg, s390_r1);
3499 }
3500 break;
3501 case OP_IMUL_OVF_UN: {
3502 s390_lhi (code, s390_r0, 0);
3503 s390_lr (code, s390_r1, ins->sreg1);
3504 s390_mlr (code, s390_r0, ins->sreg2);
3505 s390_ltr (code, s390_r0, s390_r0);
3506 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3507 s390_lgfr (code, ins->dreg, s390_r1);
3508 }
3509 break;
3510 case OP_ICONST:
3511 case OP_I8CONST:
3512 case OP_SETREGIMM: {
3513 if (s390_is_imm16(ins->inst_c0)) {
3514 s390_lghi (code, ins->dreg, ins->inst_c0);
3515 } else {
3516 s390_basr (code, s390_r13, 0);
3517 s390_j (code, 6);
3518 s390_llong(code, ins->inst_c0);
3519 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3520 }
3521 }
3522 break;
3523 case OP_AOTCONST: {
3524 s390_basr (code, s390_r13, 0);
3525 s390_j (code, 6);
3526 mono_add_patch_info (cfg, code - cfg->native_code,
3527 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3528 s390_llong(code, 0);
3529 s390_lg (code,ins->dreg, 0, s390_r13, 4);
3530 }
3531 break;
3532 case CEE_CONV_I:
3533 case CEE_CONV_I8:
3534 case OP_MOVE:
3535 case OP_SETREG: {
3536 if (ins->dreg != ins->sreg1) {
3537 s390_lgr (code, ins->dreg, ins->sreg1);
3538 }
3539 }
3540 break;
3541 case CEE_CONV_I4:
3542 s390_lgfr (code, ins->dreg, ins->sreg1);
3543 break;
3544 case CEE_CONV_U:
3545 case CEE_CONV_U8:
3546 case CEE_CONV_U4:
3547 s390_llgfr (code, ins->dreg, ins->sreg1);
3548 break;
3549 case CEE_CONV_OVF_U4:
3550 s390_basr (code, s390_r13, 0);
3551 s390_j (code, 6);
3552 s390_llong(code, 4294967295);
3553 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3554 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3555 s390_ltgr (code, ins->sreg1, ins->sreg1);
3556 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3557 s390_llgfr(code, ins->dreg, ins->sreg1);
3558 break;
3559 case CEE_CONV_OVF_I4_UN:
3560 s390_basr (code, s390_r13, 0);
3561 s390_j (code, 6);
3562 s390_llong(code, 2147483647);
3563 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3564 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3565 s390_ltgr (code, ins->sreg1, ins->sreg1);
3566 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3567 s390_lgfr (code, ins->dreg, ins->sreg1);
3568 break;
3569 case OP_SETFREG:
3570 case OP_FMOVE: {
3571 if (ins->dreg != ins->sreg1) {
3572 s390_ldr (code, ins->dreg, ins->sreg1);
3573 }
3574 }
3575 break;
3576 case OP_S390_SETF4RET: {
3577 s390_ledbr (code, ins->dreg, ins->sreg1);
3578 }
3579 break;
3580 case OP_FCONV_TO_R4: {
3581 g_error ("Shouldn't be reached");
3582 if ((ins->next) &&
3583 (ins->next->opcode != OP_FMOVE) &&
3584 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3585 s390_ledbr (code, ins->dreg, ins->sreg1);
3586 }
3587 break;
3588 case CEE_JMP: {
3589 if (cfg->method->save_lmf)
3590 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3591
3592 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3593 code = emit_load_volatile_registers(code, cfg);
3594 }
3595
3596 code = backUpStackPtr(cfg, code);
3597 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3598 mono_add_patch_info (cfg, code - cfg->native_code,
3599 MONO_PATCH_INFO_METHOD_JUMP,
3600 ins->inst_p0);
3601 s390_jcl (code, S390_CC_UN, 0);
3602 }
3603 break;
3604 case OP_CHECK_THIS: {
3605 /* ensure ins->sreg1 is not NULL */
3606 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
3607 s390_ltgr (code, s390_r0, s390_r0);
3608 }
3609 break;
3610 case OP_ARGLIST: {
3611 int offset = cfg->sig_cookie + cfg->stack_usage;
3612
3613 if (s390_is_imm16 (offset))
3614 s390_lghi (code, s390_r0, offset);
3615 else {
3616 s390_basr (code, s390_r13, 0);
3617 s390_j (code, 6);
3618 s390_llong(code, offset);
3619 s390_lg (code, s390_r0, 0, s390_r13, 0);
3620 }
3621 s390_agr (code, s390_r0, cfg->frame_reg);
3622 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
3623 }
3624 break;
3625 case OP_FCALL: {
3626 s390_basr (code, s390_r13, 0);
3627 s390_j (code, 6);
3628 call = (MonoCallInst*)ins;
3629 if (ins->flags & MONO_INST_HAS_METHOD)
3630 mono_add_patch_info (cfg, code-cfg->native_code,
3631 MONO_PATCH_INFO_METHOD,
3632 call->method);
3633 else
3634 mono_add_patch_info (cfg, code-cfg->native_code,
3635 MONO_PATCH_INFO_ABS,
3636 call->fptr);
3637 s390_llong(code, 0);
3638 s390_lg (code, s390_r14, 0, s390_r13, 4);
3639 s390_basr (code, s390_r14, s390_r14);
3640 if (call->signature->ret->type == MONO_TYPE_R4)
3641 s390_ldebr (code, s390_f0, s390_f0);
3642 }
3643 break;
3644 case OP_LCALL:
3645 case OP_VCALL:
3646 case OP_VOIDCALL:
3647 case CEE_CALL: {
3648 s390_basr (code, s390_r13, 0);
3649 s390_j (code, 6);
3650 call = (MonoCallInst*)ins;
3651 if (ins->flags & MONO_INST_HAS_METHOD)
3652 mono_add_patch_info (cfg, code-cfg->native_code,
3653 MONO_PATCH_INFO_METHOD,
3654 call->method);
3655 else
3656 mono_add_patch_info (cfg, code-cfg->native_code,
3657 MONO_PATCH_INFO_ABS,
3658 call->fptr);
3659 s390_llong(code, 0);
3660 s390_lg (code, s390_r14, 0, s390_r13, 4);
3661 s390_basr (code, s390_r14, s390_r14);
3662 }
3663 break;
3664 case OP_FCALL_REG: {
3665 call = (MonoCallInst*)ins;
3666 s390_lgr (code, s390_r1, ins->sreg1);
3667 s390_basr (code, s390_r14, s390_r1);
3668 if (call->signature->ret->type == MONO_TYPE_R4)
3669 s390_ldebr (code, s390_f0, s390_f0);
3670 }
3671 break;
3672 case OP_LCALL_REG:
3673 case OP_VCALL_REG:
3674 case OP_VOIDCALL_REG:
3675 case OP_CALL_REG: {
3676 s390_lgr (code, s390_r1, ins->sreg1);
3677 s390_basr (code, s390_r14, s390_r1);
3678 }
3679 break;
3680 case OP_FCALL_MEMBASE: {
3681 call = (MonoCallInst*)ins;
3682 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3683 s390_basr (code, s390_r14, s390_r1);
3684 if (call->signature->ret->type == MONO_TYPE_R4)
3685 s390_ldebr (code, s390_f0, s390_f0);
3686 }
3687 break;
3688 case OP_LCALL_MEMBASE:
3689 case OP_VCALL_MEMBASE:
3690 case OP_VOIDCALL_MEMBASE:
3691 case OP_CALL_MEMBASE: {
3692 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3693 s390_basr (code, s390_r14, s390_r1);
3694 }
3695 break;
3696 case OP_OUTARG:
3697 g_assert_not_reached ();
3698 break;
3699 case OP_LOCALLOC: {
3700 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3701 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3702 s390_lgr (code, s390_r1, ins->sreg1);
3703 if (ins->flags & MONO_INST_INIT)
3704 s390_lgr (code, s390_r0, ins->sreg1);
3705 s390_aghi (code, s390_r1, 14);
3706 s390_srlg (code, s390_r1, s390_r1, 0, 3);
3707 s390_sllg (code, s390_r1, s390_r1, 0, 3);
3708 s390_lg (code, s390_r13, 0, STK_BASE, 0);
3709 s390_sgr (code, STK_BASE, s390_r1);
3710 s390_stg (code, s390_r13, 0, STK_BASE, 0);
3711 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3712 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
3713 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
3714 if (ins->flags & MONO_INST_INIT) {
3715 s390_lgr (code, s390_r1, s390_r0);
3716 s390_lgr (code, s390_r0, ins->dreg);
3717 s390_lgr (code, s390_r14, s390_r12);
3718 s390_lghi (code, s390_r13, 0);
3719 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3720 s390_jo (code, -2);
3721 s390_lgr (code, s390_r12, s390_r14);
3722 }
3723 }
3724 break;
3725 case CEE_RET: {
3726 s390_br (code, s390_r14);
3727 }
3728 break;
3729 case CEE_THROW: {
3730 s390_lgr (code, s390_r2, ins->sreg1);
3731 s390_basr (code, s390_r13, 0);
3732 s390_j (code, 6);
3733 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3734 (gpointer) "mono_arch_throw_exception");
3735 s390_llong(code, 0);
3736 s390_lg (code, s390_r14, 0, s390_r13, 4);
3737 s390_basr (code, s390_r14, s390_r14);
3738 }
3739 break;
3740 case OP_RETHROW: {
3741 s390_lgr (code, s390_r2, ins->sreg1);
3742 s390_basr (code, s390_r13, 0);
3743 s390_j (code, 6);
3744 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3745 (gpointer) "mono_arch_rethrow_exception");
3746 s390_llong(code, 0);
3747 s390_lg (code, s390_r14, 0, s390_r13, 4);
3748 s390_basr (code, s390_r14, s390_r14);
3749 }
3750 break;
3751 case OP_START_HANDLER: {
3752 if (s390_is_uimm20 (ins->inst_left->inst_offset)) {
3753 s390_stg (code, s390_r14, 0,
3754 ins->inst_left->inst_basereg,
3755 ins->inst_left->inst_offset);
3756 } else {
3757 s390_basr (code, s390_r13, 0);
3758 s390_j (code, 6);
3759 s390_llong(code, ins->inst_left->inst_offset);
3760 s390_lg (code, s390_r13, 0, s390_r13, 4);
3761 s390_stg (code, s390_r14, s390_r13,
3762 ins->inst_left->inst_basereg, 0);
3763 }
3764 }
3765 break;
3766 case OP_ENDFILTER: {
3767 if (ins->sreg1 != s390_r2)
3768 s390_lgr(code, s390_r2, ins->sreg1);
3769 if (s390_is_uimm20 (ins->inst_left->inst_offset)) {
3770 s390_lg (code, s390_r14, 0, ins->inst_left->inst_basereg,
3771 ins->inst_left->inst_offset);
3772 } else {
3773 s390_basr (code, s390_r13, 0);
3774 s390_j (code, 6);
3775 s390_llong(code, ins->inst_left->inst_offset);
3776 s390_lg (code, s390_r13, 0, s390_r13, 4);
3777 s390_lg (code, s390_r14, s390_r13,
3778 ins->inst_left->inst_basereg, 0);
3779 }
3780 s390_br (code, s390_r14);
3781 }
3782 break;
3783 case CEE_ENDFINALLY: {
3784 if (s390_is_uimm20 (ins->inst_left->inst_offset)) {
3785 s390_lg (code, s390_r14, 0, ins->inst_left->inst_basereg,
3786 ins->inst_left->inst_offset);
3787 } else {
3788 s390_basr (code, s390_r13, 0);
3789 s390_j (code, 6);
3790 s390_llong(code, ins->inst_left->inst_offset);
3791 s390_lg (code, s390_r13, 0, s390_r13, 4);
3792 s390_lg (code, s390_r14, s390_r13,
3793 ins->inst_left->inst_basereg, 0);
3794 }
3795 s390_br (code, s390_r14);
3796 }
3797 break;
3798 case OP_CALL_HANDLER: {
3799 mono_add_patch_info (cfg, code-cfg->native_code,
3800 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3801 s390_brasl (code, s390_r14, 0);
3802 }
3803 break;
3804 case OP_LABEL: {
3805 ins->inst_c0 = code - cfg->native_code;
3806 }
3807 break;
3808 case CEE_BR:
3809 EMIT_UNCOND_BRANCH(ins);
3810 break;
3811 case OP_BR_REG: {
3812 s390_br (code, ins->sreg1);
3813 }
3814 break;
3815 case OP_CEQ:
3816 case OP_ICEQ: {
3817 s390_lghi(code, ins->dreg, 1);
3818 s390_jz (code, 4);
3819 s390_lghi(code, ins->dreg, 0);
3820 }
3821 break;
3822 case OP_CLT:
3823 case OP_ICLT: {
3824 s390_lghi(code, ins->dreg, 1);
3825 s390_jl (code, 4);
3826 s390_lghi(code, ins->dreg, 0);
3827 }
3828 break;
3829 case OP_CLT_UN:
3830 case OP_ICLT_UN: {
3831 s390_lghi(code, ins->dreg, 1);
3832 s390_jlo (code, 4);
3833 s390_lghi(code, ins->dreg, 0);
3834 }
3835 break;
3836 case OP_CGT:
3837 case OP_ICGT: {
3838 s390_lghi(code, ins->dreg, 1);
3839 s390_jh (code, 4);
3840 s390_lghi(code, ins->dreg, 0);
3841 }
3842 break;
3843 case OP_CGT_UN:
3844 case OP_ICGT_UN: {
3845 s390_lghi(code, ins->dreg, 1);
3846 s390_jho (code, 4);
3847 s390_lghi(code, ins->dreg, 0);
3848 }
3849 break;
3850 case OP_COND_EXC_EQ:
3851 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3852 break;
3853 case OP_COND_EXC_NE_UN:
3854 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3855 break;
3856 case OP_COND_EXC_LT:
3857 case OP_COND_EXC_LT_UN:
3858 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3859 break;
3860 case OP_COND_EXC_GT:
3861 case OP_COND_EXC_GT_UN:
3862 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3863 break;
3864 case OP_COND_EXC_GE:
3865 case OP_COND_EXC_GE_UN:
3866 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3867 break;
3868 case OP_COND_EXC_LE:
3869 case OP_COND_EXC_LE_UN:
3870 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3871 break;
3872 case OP_COND_EXC_OV:
3873 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3874 break;
3875 case OP_COND_EXC_NO:
3876 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3877 break;
3878 case OP_COND_EXC_C:
3879 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3880 break;
3881 case OP_COND_EXC_NC:
3882 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3883 break;
3884 case CEE_BEQ:
3885 case OP_IBEQ:
3886 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3887 break;
3888 case CEE_BNE_UN:
3889 case OP_IBNE_UN:
3890 EMIT_COND_BRANCH (ins, S390_CC_NE);
3891 break;
3892 case CEE_BLT:
3893 case CEE_BLT_UN:
3894 case OP_IBLT:
3895 case OP_IBLT_UN:
3896 EMIT_COND_BRANCH (ins, S390_CC_LT);
3897 break;
3898 case CEE_BGT:
3899 case CEE_BGT_UN:
3900 case OP_IBGT:
3901 case OP_IBGT_UN:
3902 EMIT_COND_BRANCH (ins, S390_CC_GT);
3903 break;
3904 case CEE_BGE:
3905 case CEE_BGE_UN:
3906 case OP_IBGE:
3907 case OP_IBGE_UN:
3908 EMIT_COND_BRANCH (ins, S390_CC_GE);
3909 break;
3910 case CEE_BLE:
3911 case CEE_BLE_UN:
3912 case OP_IBLE:
3913 case OP_IBLE_UN:
3914 EMIT_COND_BRANCH (ins, S390_CC_LE);
3915 break;
3916
3917 /* floating point opcodes */
3918 case OP_R8CONST: {
3919 if (*((float *) ins->inst_p0) == 0) {
3920 s390_lzdr (code, ins->dreg);
3921 } else {
3922 s390_basr (code, s390_r13, 0);
3923 s390_j (code, 6);
3924 s390_llong (code, ins->inst_p0);
3925 s390_lg (code, s390_r13, 0, s390_r13, 4);
3926 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3927 }
3928 }
3929 break;
3930 case OP_R4CONST: {
3931 if (*((float *) ins->inst_p0) == 0) {
3932 s390_lzdr (code, ins->dreg);
3933 } else {
3934 s390_basr (code, s390_r13, 0);
3935 s390_j (code, 6);
3936 s390_llong(code, ins->inst_p0);
3937 s390_lg (code, s390_r13, 0, s390_r13, 4);
3938 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3939 }
3940 }
3941 break;
3942 case OP_STORER8_MEMBASE_REG: {
3943 if (s390_is_uimm20(ins->inst_offset)) {
3944 s390_stdy (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3945 } else {
3946 s390_basr (code, s390_r13, 0);
3947 s390_j (code, 6);
3948 s390_llong(code, ins->inst_offset);
3949 s390_lg (code, s390_r13, 0, s390_r13, 4);
3950 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3951 }
3952 }
3953 break;
3954 case OP_LOADR8_MEMBASE: {
3955 if (s390_is_uimm20(ins->inst_offset)) {
3956 s390_ldy (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3957 } else {
3958 s390_basr (code, s390_r13, 0);
3959 s390_j (code, 6);
3960 s390_llong(code, ins->inst_offset);
3961 s390_lg (code, s390_r13, 0, s390_r13, 4);
3962 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3963 }
3964 }
3965 break;
3966 case OP_STORER4_MEMBASE_REG: {
3967 if (s390_is_uimm20(ins->inst_offset)) {
3968 s390_ledbr(code, s390_f15, ins->sreg1);
3969 s390_stey (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
3970 } else {
3971 s390_basr (code, s390_r13, 0);
3972 s390_j (code, 6);
3973 s390_llong(code, ins->inst_offset);
3974 s390_lg (code, s390_r13, 0, s390_r13, 4);
3975 s390_ledbr(code, s390_f15, ins->sreg1);
3976 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
3977 }
3978 }
3979 break;
3980 case OP_LOADR4_MEMBASE: {
3981 if (s390_is_uimm20(ins->inst_offset)) {
3982 s390_ldy (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3983 s390_ldebr (code, ins->dreg, ins->dreg);
3984 } else {
3985 s390_basr (code, s390_r13, 0);
3986 s390_j (code, 6);
3987 s390_llong(code, ins->inst_offset);
3988 s390_lg (code, s390_r13, 0, s390_r13, 4);
3989 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3990 }
3991 }
3992 break;
3993 case CEE_CONV_R_UN: {
3994 s390_cdfbr (code, ins->dreg, ins->sreg1);
3995 s390_ltgr (code, ins->sreg1, ins->sreg1);
3996 s390_jnl (code, 12);
3997 s390_basr (code, s390_r13, 0);
3998 s390_j (code, 6);
3999 s390_word (code, 0x41f00000);
4000 s390_word (code, 0);
4001 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4002 }
4003 break;
4004 case OP_LCONV_TO_R4:
4005 case CEE_CONV_R4: {
4006 s390_cdgbr (code, ins->dreg, ins->sreg1);
4007 }
4008 break;
4009 case OP_LCONV_TO_R8:
4010 case CEE_CONV_R8: {
4011 s390_cdgbr (code, ins->dreg, ins->sreg1);
4012 }
4013 break;
4014 case OP_FCONV_TO_I1:
4015 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4016 break;
4017 case OP_FCONV_TO_U1:
4018 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4019 break;
4020 case OP_FCONV_TO_I2:
4021 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4022 break;
4023 case OP_FCONV_TO_U2:
4024 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4025 break;
4026 case OP_FCONV_TO_I4:
4027 case OP_FCONV_TO_I:
4028 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4029 break;
4030 case OP_FCONV_TO_U4:
4031 case OP_FCONV_TO_U:
4032 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4033 break;
4034 case OP_FCONV_TO_I8:
4035 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
4036 break;
4037 case OP_FCONV_TO_U8:
4038 g_assert_not_reached ();
4039 /* Implemented as helper calls */
4040 break;
4041 case OP_LCONV_TO_R_UN:
4042 g_assert_not_reached ();
4043 /* Implemented as helper calls */
4044 break;
4045 case OP_LCONV_TO_OVF_I: {
4046 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4047 short int *o[5];
4048 s390_ltgr (code, ins->sreg2, ins->sreg2);
4049 s390_jnl (code, 0); CODEPTR(code, o[0]);
4050 s390_ltgr (code, ins->sreg1, ins->sreg1);
4051 s390_jnl (code, 0); CODEPTR(code, o[1]);
4052 s390_lhi (code, s390_r13, -1);
4053 s390_cgr (code, ins->sreg1, s390_r13);
4054 s390_jnz (code, 0); CODEPTR(code, o[2]);
4055 if (ins->dreg != ins->sreg2)
4056 s390_lgr (code, ins->dreg, ins->sreg2);
4057 s390_j (code, 0); CODEPTR(code, o[3]);
4058 PTRSLOT(code, o[0]);
4059 s390_jz (code, 0); CODEPTR(code, o[4]);
4060 PTRSLOT(code, o[1]);
4061 PTRSLOT(code, o[2]);
4062 mono_add_patch_info (cfg, code - cfg->native_code,
4063 MONO_PATCH_INFO_EXC, "OverflowException");
4064 s390_brasl (code, s390_r14, 0);
4065 PTRSLOT(code, o[3]);
4066 PTRSLOT(code, o[4]);
4067 }
4068 break;
4069 case OP_SQRT: {
4070 s390_sqdbr (code, ins->dreg, ins->sreg1);
4071 }
4072 break;
4073 case OP_FADD: {
4074 CHECK_SRCDST_COM_F;
4075 s390_adbr (code, ins->dreg, src2);
4076 }
4077 break;
4078 case OP_FSUB: {
4079 CHECK_SRCDST_NCOM_F;
4080 s390_sdbr (code, ins->dreg, src2);
4081 }
4082 break;
4083 case OP_FMUL: {
4084 CHECK_SRCDST_COM_F;
4085 s390_mdbr (code, ins->dreg, src2);
4086 }
4087 break;
4088 case OP_FDIV: {
4089 CHECK_SRCDST_NCOM_F;
4090 s390_ddbr (code, ins->dreg, src2);
4091 }
4092 break;
4093 case OP_FNEG: {
4094 s390_lcdbr (code, ins->dreg, ins->sreg1);
4095 }
4096 break;
4097 case OP_FREM: {
4098 CHECK_SRCDST_NCOM_F;
4099 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4100 }
4101 break;
4102 case OP_FCOMPARE: {
4103 s390_cdbr (code, ins->sreg1, ins->sreg2);
4104 }
4105 break;
4106 case OP_FCEQ: {
4107 s390_cdbr (code, ins->sreg1, ins->sreg2);
4108 s390_lghi (code, ins->dreg, 1);
4109 s390_je (code, 4);
4110 s390_lghi (code, ins->dreg, 0);
4111 }
4112 break;
4113 case OP_FCLT: {
4114 s390_cdbr (code, ins->sreg1, ins->sreg2);
4115 s390_lghi (code, ins->dreg, 1);
4116 s390_jl (code, 4);
4117 s390_lghi (code, ins->dreg, 0);
4118 }
4119 break;
4120 case OP_FCLT_UN: {
4121 s390_cdbr (code, ins->sreg1, ins->sreg2);
4122 s390_lghi (code, ins->dreg, 1);
4123 s390_jlo (code, 4);
4124 s390_lghi (code, ins->dreg, 0);
4125 }
4126 break;
4127 case OP_FCGT: {
4128 s390_cdbr (code, ins->sreg1, ins->sreg2);
4129 s390_lghi (code, ins->dreg, 1);
4130 s390_jh (code, 4);
4131 s390_lghi (code, ins->dreg, 0);
4132 }
4133 break;
4134 case OP_FCGT_UN: {
4135 s390_cdbr (code, ins->sreg1, ins->sreg2);
4136 s390_lghi (code, ins->dreg, 1);
4137 s390_jho (code, 4);
4138 s390_lghi (code, ins->dreg, 0);
4139 }
4140 break;
4141 case OP_FBEQ:
4142 EMIT_COND_BRANCH (ins, S390_CC_EQ|S390_CC_OV);
4143 break;
4144 case OP_FBNE_UN:
4145 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4146 break;
4147 case OP_FBLT:
4148 EMIT_COND_BRANCH (ins, S390_CC_LT);
4149 break;
4150 case OP_FBLT_UN:
4151 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4152 break;
4153 case OP_FBGT:
4154 EMIT_COND_BRANCH (ins, S390_CC_GT);
4155 break;
4156 case OP_FBGT_UN:
4157 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4158 break;
4159 case OP_FBGE:
4160 EMIT_COND_BRANCH (ins, S390_CC_GE);
4161 break;
4162 case OP_FBGE_UN:
4163 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4164 break;
4165 case OP_FBLE:
4166 EMIT_COND_BRANCH (ins, S390_CC_LE);
4167 break;
4168 case OP_FBLE_UN:
4169 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4170 break;
4171 case CEE_CKFINITE: {
4172 short *o;
4173 s390_lhi (code, s390_r13, 0x7f);
4174 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4175 s390_jz (code, 0); CODEPTR(code, o);
4176 mono_add_patch_info (cfg, code - cfg->native_code,
4177 MONO_PATCH_INFO_EXC, "ArithmeticException");
4178 s390_brasl (code, s390_r14,0);
4179 PTRSLOT(code, o);
4180 }
4181 break;
4182 case OP_S390_MOVE: {
4183 if (ins->unused > 0) {
4184 if (ins->unused <= 256) {
4185 s390_mvc (code, ins->unused, ins->dreg,
4186 ins->inst_offset, ins->sreg1, ins->inst_imm);
4187 } else {
4188 s390_lgr (code, s390_r0, ins->dreg);
4189 if (s390_is_imm16 (ins->inst_offset)) {
4190 s390_aghi (code, s390_r0, ins->inst_offset);
4191 } else {
4192 s390_basr (code, s390_r13, 0);
4193 s390_j (code, 6);
4194 s390_llong(code, ins->inst_offset);
4195 s390_a (code, s390_r0, 0, s390_r13, 4);
4196 }
4197 s390_lgr (code, s390_r12, ins->sreg1);
4198 if (s390_is_imm16 (ins->inst_imm)) {
4199 s390_aghi (code, s390_r12, ins->inst_imm);
4200 } else {
4201 s390_basr (code, s390_r13, 0);
4202 s390_j (code, 6);
4203 s390_llong(code, ins->inst_imm);
4204 s390_ag (code, s390_r12, 0, s390_r13, 4);
4205 }
4206 s390_lgr (code, s390_r1, ins->sreg1);
4207 s390_lgr (code, s390_r13, s390_r1);
4208 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4209 s390_jo (code, -2);
4210 }
4211 }
4212 }
4213 break;
4214 case OP_ATOMIC_ADD_I8: {
4215 s390_lgr (code, s390_r1, ins->sreg2);
4216 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4217 s390_ag (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4218 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4219 s390_jnz (code, -7);
4220 s390_lgr (code, ins->dreg, s390_r1);
4221 }
4222 break;
4223 case OP_ATOMIC_ADD_NEW_I8: {
4224 s390_lgr (code, s390_r1, ins->sreg2);
4225 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4226 s390_ag (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4227 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4228 s390_jnz (code, -7);
4229 s390_lgr (code, ins->dreg, s390_r1);
4230 }
4231 break;
4232 case OP_ATOMIC_EXCHANGE_I8: {
4233 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4234 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4235 s390_jnz (code, -4);
4236 s390_lgr (code, ins->dreg, s390_r0);
4237 }
4238 break;
4239 case OP_ATOMIC_ADD_I4: {
4240 s390_lr (code, s390_r1, ins->sreg2);
4241 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4242 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4243 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4244 s390_jnz (code, -7);
4245 s390_lr (code, ins->dreg, s390_r1);
4246 }
4247 break;
4248 case OP_ATOMIC_ADD_NEW_I4: {
4249 s390_lr (code, s390_r1, ins->sreg2);
4250 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4251 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4252 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4253 s390_jnz (code, -7);
4254 s390_lr (code, ins->dreg, s390_r1);
4255 }
4256 break;
4257 case OP_ATOMIC_EXCHANGE_I4: {
4258 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4259 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4260 s390_jnz (code, -4);
4261 s390_lr (code, ins->dreg, s390_r0);
4262 }
4263 break;
4264 case OP_S390_BKCHAIN: {
4265 s390_lgr (code, ins->dreg, ins->sreg1);
4266 if (s390_is_imm16 (cfg->stack_offset)) {
4267 s390_aghi (code, ins->dreg, cfg->stack_offset);
4268 } else {
4269 s390_basr (code, s390_r13, 0);
4270 s390_j (code, 6);
4271 s390_llong(code, cfg->stack_offset);
4272 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4273 }
4274 }
4275 break;
4276 case OP_MEMORY_BARRIER: {
4277 }
4278 break;
4279 default:
4280 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4281 g_assert_not_reached ();
4282 }
4283
4284 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4285 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4286 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4287 g_assert_not_reached ();
4288 }
4289
4290 cpos += max_len;
4291
4292 last_ins = ins;
4293 last_offset = offset;
4294
4295 ins = ins->next;
4296 }
4297
4298 cfg->code_len = code - cfg->native_code;
4299 }
4300
4301 /*========================= End of Function ========================*/
4302
4303 /*------------------------------------------------------------------*/
4304 /* */
4305 /* Name - mono_arch_register_lowlevel_calls */
4306 /* */
4307 /* Function - Register routines to help with --trace operation. */
4308 /* */
4309 /*------------------------------------------------------------------*/
4310
4311 void
4312 mono_arch_register_lowlevel_calls (void)
4313 {
4314 mono_register_jit_icall (mono_arch_break, "mono_arch_break", NULL, TRUE);
4315 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4316 }
4317
4318 /*========================= End of Function ========================*/
4319
4320 /*------------------------------------------------------------------*/
4321 /* */
4322 /* Name - mono_arch_break */
4323 /* */
4324 /* Function - Process a "break" operation for debugging. */
4325 /* */
4326 /*------------------------------------------------------------------*/
4327
4328 static void
4329 mono_arch_break(void) {
4330 }
4331
4332 /*========================= End of Function ========================*/
4333
4334 /*------------------------------------------------------------------*/
4335 /* */
4336 /* Name - mono_arch_patch_code */
4337 /* */
4338 /* Function - Process the patch data created during the */
4339 /* instruction build process. This resolves jumps, */
4340 /* calls, variables etc. */
4341 /* */
4342 /*------------------------------------------------------------------*/
4343
4344 void
4345 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4346 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4347 {
4348 MonoJumpInfo *patch_info;
4349
4350 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4351 unsigned char *ip = patch_info->ip.i + code;
4352 gconstpointer target = NULL;
4353
4354 target = mono_resolve_patch_target (method, domain, code,
4355 patch_info, run_cctors);
4356
4357 switch (patch_info->type) {
4358 case MONO_PATCH_INFO_IP:
4359 case MONO_PATCH_INFO_EXC_NAME:
4360 case MONO_PATCH_INFO_LDSTR:
4361 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4362 case MONO_PATCH_INFO_LDTOKEN:
4363 case MONO_PATCH_INFO_EXC:
4364 case MONO_PATCH_INFO_ABS:
4365 case MONO_PATCH_INFO_METHOD:
4366 case MONO_PATCH_INFO_INTERNAL_METHOD:
4367 case MONO_PATCH_INFO_CLASS_INIT:
4368 s390_patch_addr (ip, (guint64) target);
4369 continue;
4370 case MONO_PATCH_INFO_SWITCH:
4371 /*----------------------------------*/
4372 /* ip points at the basr r13,0/j +4 */
4373 /* instruction the vtable value */
4374 /* follows this (i.e. ip+6) */
4375 /*----------------------------------*/
4376 *((gconstpointer *)(ip+6)) = target;
4377 continue;
4378 case MONO_PATCH_INFO_METHODCONST:
4379 case MONO_PATCH_INFO_CLASS:
4380 case MONO_PATCH_INFO_IMAGE:
4381 case MONO_PATCH_INFO_FIELD:
4382 case MONO_PATCH_INFO_IID:
4383 target = S390_RELATIVE(target, ip);
4384 s390_patch_rel (ip, (guint64) target);
4385 continue;
4386 case MONO_PATCH_INFO_R4:
4387 case MONO_PATCH_INFO_R8:
4388 case MONO_PATCH_INFO_METHOD_REL:
4389 g_assert_not_reached ();
4390 continue;
4391 default:
4392 target = S390_RELATIVE(target, ip);
4393 ip += 2;
4394 s390_patch_rel (ip, (guint64) target);
4395 }
4396 }
4397 }
4398
4399 /*========================= End of Function ========================*/
4400
4401 /*------------------------------------------------------------------*/
4402 /* */
4403 /* Name - emit_load_volatile_registers */
4404 /* */
4405 /* Function - Emit the instructions to reload parameter regist- */
4406 /* registers for use with "tail" operations. */
4407 /* */
4408 /* The register loading operations performed here */
4409 /* are the mirror of the store operations performed */
4410 /* in mono_arch_emit_prolog and need to be kept in */
4411 /* synchronization with it. */
4412 /* */
4413 /*------------------------------------------------------------------*/
4414
4415 guint8 *
4416 emit_load_volatile_registers (guint8 *code, MonoCompile *cfg)
4417 {
4418 MonoInst *inst;
4419 MonoMethod *method = cfg->method;
4420 MonoMethodSignature *sig = mono_method_signature(method);
4421 int pos = 0, i;
4422 CallInfo *cinfo;
4423 size_data sz;
4424
4425 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4426
4427 if (cinfo->struct_ret) {
4428 ArgInfo *ainfo = &cinfo->ret;
4429 inst = cfg->ret;
4430 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4431 }
4432
4433 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4434 ArgInfo *ainfo = cinfo->args + i;
4435 inst = cfg->varinfo [pos];
4436
4437 if (inst->opcode == OP_REGVAR) {
4438 if (ainfo->regtype == RegTypeGeneral)
4439 s390_lgr (code, ainfo->reg, inst->dreg);
4440 else if (ainfo->regtype == RegTypeFP) {
4441 if (inst->dreg != ainfo->reg) {
4442 if (ainfo->size == 4) {
4443 s390_ldebr (code, ainfo->reg, inst->dreg);
4444 } else {
4445 s390_ldr (code, ainfo->reg, inst->dreg);
4446 }
4447 }
4448 }
4449 else if (ainfo->regtype == RegTypeBase) {
4450 } else
4451 g_assert_not_reached ();
4452 } else {
4453 if (ainfo->regtype == RegTypeGeneral) {
4454 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4455 g_assert_not_reached();
4456 switch (ainfo->size) {
4457 case 1:
4458 s390_icy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4459 break;
4460 case 2:
4461 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4462 break;
4463 case 4:
4464 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4465 break;
4466 case 8:
4467 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4468 break;
4469 }
4470 } else if (ainfo->regtype == RegTypeBase) {
4471 } else if (ainfo->regtype == RegTypeFP) {
4472 if (ainfo->size == 8)
4473 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4474 else if (ainfo->size == 4)
4475 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4476 else
4477 g_assert_not_reached ();
4478 } else if (ainfo->regtype == RegTypeStructByVal) {
4479 if (ainfo->reg != STK_BASE) {
4480 switch (ainfo->size) {
4481 case 1:
4482 s390_icy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4483 break;
4484 case 2:
4485 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4486 break;
4487 case 4:
4488 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4489 break;
4490 case 8:
4491 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4492 break;
4493 }
4494 }
4495 } else if (ainfo->regtype == RegTypeStructByAddr) {
4496 if (ainfo->reg != STK_BASE) {
4497 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4498 }
4499 } else
4500 g_assert_not_reached ();
4501 }
4502 pos++;
4503 }
4504
4505 g_free (cinfo);
4506
4507 return code;
4508 }
4509
4510 /*========================= End of Function ========================*/
4511
4512 /*------------------------------------------------------------------*/
4513 /* */
4514 /* Name - mono_arch_emit_prolog */
4515 /* */
4516 /* Function - Create the instruction sequence for a function */
4517 /* prolog. */
4518 /* */
4519 /*------------------------------------------------------------------*/
4520
4521 guint8 *
4522 mono_arch_emit_prolog (MonoCompile *cfg)
4523 {
4524 MonoMethod *method = cfg->method;
4525 MonoBasicBlock *bb;
4526 MonoMethodSignature *sig;
4527 MonoInst *inst;
4528 int alloc_size, pos, max_offset, i;
4529 guint8 *code;
4530 CallInfo *cinfo;
4531 size_data sz;
4532 int tracing = 0;
4533 int lmfOffset;
4534
4535 cfg->code_size = 512;
4536
4537 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4538 tracing = 1;
4539 cfg->code_size += 256;
4540 }
4541
4542 if (method->save_lmf)
4543 cfg->code_size += 200;
4544
4545 cfg->native_code = code = g_malloc (cfg->code_size);
4546
4547 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4548
4549 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4550 cfg->used_int_regs |= 1 << 11;
4551 }
4552
4553 alloc_size = cfg->stack_offset;
4554
4555 cfg->stack_usage = alloc_size;
4556 s390_lgr (code, s390_r11, STK_BASE);
4557 if (s390_is_uimm16 (alloc_size)) {
4558 s390_aghi (code, STK_BASE, -alloc_size);
4559 } else {
4560 int stackSize = alloc_size;
4561 while (stackSize > 32767) {
4562 s390_aghi (code, STK_BASE, -32767);
4563 stackSize -= 32767;
4564 }
4565 s390_aghi (code, STK_BASE, -stackSize);
4566 }
4567 s390_stg (code, s390_r11, 0, STK_BASE, 0);
4568
4569 if (cfg->frame_reg != STK_BASE)
4570 s390_lgr (code, s390_r11, STK_BASE);
4571
4572 /* compute max_offset in order to use short forward jumps
4573 * we always do it on s390 because the immediate displacement
4574 * for jumps is too small
4575 */
4576 max_offset = 0;
4577 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4578 MonoInst *ins = bb->code;
4579 bb->max_offset = max_offset;
4580
4581 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4582 max_offset += 6;
4583
4584 while (ins) {
4585 max_offset += ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
4586 ins = ins->next;
4587 }
4588 }
4589
4590 /* load arguments allocated to register from the stack */
4591 sig = mono_method_signature (method);
4592 pos = 0;
4593
4594 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4595
4596 if (cinfo->struct_ret) {
4597 ArgInfo *ainfo = &cinfo->ret;
4598 inst = cfg->ret;
4599 inst->unused = ainfo->vtsize;
4600 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4601 }
4602
4603 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4604 ArgInfo *ainfo = cinfo->args + i;
4605 inst = cfg->varinfo [pos];
4606
4607 if (inst->opcode == OP_REGVAR) {
4608 if (ainfo->regtype == RegTypeGeneral)
4609 s390_lgr (code, inst->dreg, ainfo->reg);
4610 else if (ainfo->regtype == RegTypeFP) {
4611 if (inst->dreg != ainfo->reg) {
4612 if (ainfo->size == 4) {
4613 s390_ledbr (code, inst->dreg, ainfo->reg);
4614 } else {
4615 s390_ldr (code, inst->dreg, ainfo->reg);
4616 }
4617 }
4618 }
4619 else if (ainfo->regtype == RegTypeBase) {
4620 s390_lgr (code, s390_r13, STK_BASE);
4621 s390_aghi (code, s390_r13, alloc_size);
4622 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
4623 } else
4624 g_assert_not_reached ();
4625
4626 if (cfg->verbose_level > 2)
4627 g_print ("Argument %d assigned to register %s\n",
4628 pos, mono_arch_regname (inst->dreg));
4629 } else {
4630 if (ainfo->regtype == RegTypeGeneral) {
4631 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4632 g_assert_not_reached();
4633 switch (ainfo->size) {
4634 case 1:
4635 s390_stcy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4636 break;
4637 case 2:
4638 s390_sthy (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4639 break;
4640 case 4:
4641 s390_sty (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4642 break;
4643 case 8:
4644 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4645 break;
4646 }
4647 } else if (ainfo->regtype == RegTypeBase) {
4648 } else if (ainfo->regtype == RegTypeFP) {
4649 if (ainfo->size == 8)
4650 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4651 else if (ainfo->size == 4)
4652 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4653 else
4654 g_assert_not_reached ();
4655 } else if (ainfo->regtype == RegTypeStructByVal) {
4656 int doffset = inst->inst_offset;
4657 int reg;
4658 if (ainfo->reg != STK_BASE)
4659 reg = ainfo->reg;
4660 else {
4661 reg = s390_r0;
4662 s390_lgr (code, s390_r13, STK_BASE);
4663 s390_aghi (code, s390_r13, alloc_size);
4664 }
4665 switch (ainfo->size) {
4666 case 1:
4667 if (ainfo->reg == STK_BASE)
4668 s390_icy (code, reg, 0, s390_r13, ainfo->offset+7);
4669 s390_stcy (code, reg, 0, inst->inst_basereg, doffset);
4670 break;
4671 case 2:
4672 if (ainfo->reg == STK_BASE)
4673 s390_lhy (code, reg, 0, s390_r13, ainfo->offset+6);
4674 s390_sthy (code, reg, 0, inst->inst_basereg, doffset);
4675 break;
4676 case 4:
4677 if (ainfo->reg == STK_BASE)
4678 s390_ly (code, reg, 0, s390_r13, ainfo->offset+4);
4679 s390_sty (code, reg, 0, inst->inst_basereg, doffset);
4680 break;
4681 case 8:
4682 if (ainfo->reg == STK_BASE)
4683 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
4684 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
4685 break;
4686 }
4687 } else if (ainfo->regtype == RegTypeStructByAddr) {
4688 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4689 } else
4690 g_assert_not_reached ();
4691 }
4692 pos++;
4693 }
4694
4695 if (method->save_lmf) {
4696 /*---------------------------------------------------------------*/
4697 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4698 /*---------------------------------------------------------------*/
4699 lmfOffset = alloc_size - sizeof(MonoLMF);
4700
4701 s390_lgr (code, s390_r13, cfg->frame_reg);
4702 s390_aghi (code, s390_r13, lmfOffset);
4703
4704 /*---------------------------------------------------------------*/
4705 /* Preserve the parameter registers while we fix up the lmf */
4706 /*---------------------------------------------------------------*/
4707 s390_stmg (code, s390_r2, s390_r6, s390_r13,
4708 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4709
4710 /*---------------------------------------------------------------*/
4711 /* On return from this call r2 have the address of the &lmf */
4712 /*---------------------------------------------------------------*/
4713 s390_basr(code, s390_r10, 0);
4714 s390_j (code, 6);
4715 mono_add_patch_info (cfg, code - cfg->native_code,
4716 MONO_PATCH_INFO_INTERNAL_METHOD,
4717 (gpointer)"mono_get_lmf_addr");
4718 s390_llong(code, 0);
4719 s390_lg (code, s390_r1, 0, s390_r10, 4);
4720 s390_basr (code, s390_r14, s390_r1);
4721
4722 /*---------------------------------------------------------------*/
4723 /* Set lmf.lmf_addr = jit_tls->lmf */
4724 /*---------------------------------------------------------------*/
4725 s390_stg (code, s390_r2, 0, s390_r13,
4726 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4727
4728 /*---------------------------------------------------------------*/
4729 /* Get current lmf */
4730 /*---------------------------------------------------------------*/
4731 s390_lg (code, s390_r0, 0, s390_r2, 0);
4732
4733 /*---------------------------------------------------------------*/
4734 /* Set our lmf as the current lmf */
4735 /*---------------------------------------------------------------*/
4736 s390_stg (code, s390_r13, 0, s390_r2, 0);
4737
4738 /*---------------------------------------------------------------*/
4739 /* Have our lmf.previous_lmf point to the last lmf */
4740 /*---------------------------------------------------------------*/
4741 s390_stg (code, s390_r0, 0, s390_r13,
4742 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4743
4744 /*---------------------------------------------------------------*/
4745 /* save method info */
4746 /*---------------------------------------------------------------*/
4747 s390_basr (code, s390_r1, 0);
4748 s390_j (code, 6);
4749 s390_llong (code, method);
4750 s390_lg (code, s390_r1, 0, s390_r1, 4);
4751 s390_stg (code, s390_r1, 0, s390_r13,
4752 G_STRUCT_OFFSET(MonoLMF, method));
4753
4754 /*---------------------------------------------------------------*/
4755 /* save the current IP */
4756 /*---------------------------------------------------------------*/
4757 s390_lgr (code, s390_r1, cfg->frame_reg);
4758 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4759 s390_basr (code, s390_r1, 0);
4760 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4761
4762 /*---------------------------------------------------------------*/
4763 /* Save general and floating point registers */
4764 /*---------------------------------------------------------------*/
4765 s390_stmg (code, s390_r2, s390_r12, s390_r13,
4766 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4767 for (i = 0; i < 16; i++) {
4768 s390_std (code, i, 0, s390_r13,
4769 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4770 }
4771
4772 /*---------------------------------------------------------------*/
4773 /* Restore the parameter registers now that we've set up the lmf */
4774 /*---------------------------------------------------------------*/
4775 s390_lmg (code, s390_r2, s390_r6, s390_r13,
4776 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4777 }
4778
4779 if (tracing)
4780 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4781
4782 cfg->code_len = code - cfg->native_code;
4783 g_assert (cfg->code_len < cfg->code_size);
4784
4785 g_free (cinfo);
4786
4787 return code;
4788 }
4789
4790 /*========================= End of Function ========================*/
4791
4792 /*------------------------------------------------------------------*/
4793 /* */
4794 /* Name - mono_arch_emit_epilog */
4795 /* */
4796 /* Function - Emit the instructions for a function epilog. */
4797 /* */
4798 /*------------------------------------------------------------------*/
4799
4800 void
4801 mono_arch_emit_epilog (MonoCompile *cfg)
4802 {
4803 MonoMethod *method = cfg->method;
4804 int tracing = 0;
4805 guint8 *code;
4806 int max_epilog_size = 96;
4807
4808 if (cfg->method->save_lmf)
4809 max_epilog_size += 128;
4810
4811 if (mono_jit_trace_calls != NULL)
4812 max_epilog_size += 128;
4813
4814 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4815 max_epilog_size += 128;
4816
4817 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4818 cfg->code_size *= 2;
4819 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4820 mono_jit_stats.code_reallocs++;
4821 }
4822
4823 code = cfg->native_code + cfg->code_len;
4824
4825 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4826 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4827 tracing = 1;
4828 }
4829
4830 if (method->save_lmf)
4831 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4832
4833 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4834 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
4835 else
4836 code = backUpStackPtr(cfg, code);
4837
4838 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4839 s390_br (code, s390_r14);
4840
4841 cfg->code_len = code - cfg->native_code;
4842
4843 g_assert (cfg->code_len < cfg->code_size);
4844
4845 }
4846
4847 /*========================= End of Function ========================*/
4848
4849 /*------------------------------------------------------------------*/
4850 /* */
4851 /* Name - mono_arch_emit_exceptions */
4852 /* */
4853 /* Function - Emit the blocks to handle exception conditions. */
4854 /* */
4855 /*------------------------------------------------------------------*/
4856
4857 void
4858 mono_arch_emit_exceptions (MonoCompile *cfg)
4859 {
4860 MonoJumpInfo *patch_info;
4861 guint8 *code;
4862 int nThrows = 0,
4863 exc_count = 0,
4864 iExc;
4865 guint32 code_size;
4866 MonoClass *exc_classes [MAX_EXC];
4867 guint8 *exc_throw_start [MAX_EXC],
4868 *exc_throw_end [MAX_EXC];
4869
4870 for (patch_info = cfg->patch_info;
4871 patch_info;
4872 patch_info = patch_info->next) {
4873 if (patch_info->type == MONO_PATCH_INFO_EXC)
4874 exc_count++;
4875 }
4876
4877 code_size = exc_count * 48;
4878
4879 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4880 cfg->code_size *= 2;
4881 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4882 mono_jit_stats.code_reallocs++;
4883 }
4884
4885 code = cfg->native_code + cfg->code_len;
4886
4887 /*---------------------------------------------------------------------*/
4888 /* Add code to raise exceptions */
4889 /*---------------------------------------------------------------------*/
4890 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4891 switch (patch_info->type) {
4892 case MONO_PATCH_INFO_EXC: {
4893 guint8 *ip = patch_info->ip.i + cfg->native_code;
4894 MonoClass *exc_class;
4895 guint64 throw_ip;
4896
4897 /*-----------------------------------------------------*/
4898 /* Patch the branch in epilog to come here */
4899 /*-----------------------------------------------------*/
4900 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
4901
4902 exc_class = mono_class_from_name (mono_defaults.corlib,
4903 "System",
4904 patch_info->data.name);
4905 g_assert (exc_class);
4906 throw_ip = patch_info->ip.i;
4907
4908 for (iExc = 0; iExc < nThrows; ++iExc)
4909 if (exc_classes [iExc] == exc_class)
4910 break;
4911
4912 if (iExc < nThrows) {
4913 s390_jcl (code, S390_CC_UN,
4914 (guint64) exc_throw_start [iExc]);
4915 patch_info->type = MONO_PATCH_INFO_NONE;
4916 } else {
4917
4918 if (nThrows < MAX_EXC) {
4919 exc_classes [nThrows] = exc_class;
4920 exc_throw_start [nThrows] = code;
4921 }
4922
4923 /*---------------------------------------------*/
4924 /* Patch the parameter passed to the handler */
4925 /*---------------------------------------------*/
4926 s390_basr (code, s390_r13, 0);
4927 s390_j (code, 6);
4928 s390_llong(code, patch_info->data.target);
4929 /*---------------------------------------------*/
4930 /* Load return address & parameter register */
4931 /*---------------------------------------------*/
4932 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
4933 cfg->native_code + 8), code));
4934 s390_lg (code, s390_r2, 0, s390_r13, 4);
4935 /*---------------------------------------------*/
4936 /* Reuse the current patch to set the jump */
4937 /*---------------------------------------------*/
4938 s390_basr (code, s390_r13, 0);
4939 s390_j (code, 6);
4940 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4941 patch_info->data.name = "mono_arch_throw_exception_by_name";
4942 patch_info->ip.i = code - cfg->native_code;
4943 s390_llong(code, 0);
4944 s390_lg (code, s390_r1, 0, s390_r13, 4);
4945 s390_br (code, s390_r1);
4946 }
4947 break;
4948 }
4949 default:
4950 /* do nothing */
4951 break;
4952 }
4953 }
4954
4955 cfg->code_len = code - cfg->native_code;
4956
4957 g_assert (cfg->code_len < cfg->code_size);
4958
4959 }
4960
4961 /*========================= End of Function ========================*/
4962
4963 /*------------------------------------------------------------------*/
4964 /* */
4965 /* Name - mono_arch_setup_jit_tls_data */
4966 /* */
4967 /* Function - Setup the JIT's Thread Level Specific Data. */
4968 /* */
4969 /*------------------------------------------------------------------*/
4970
4971 void
4972 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4973 {
4974 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
4975 pthread_t self = pthread_self();
4976 pthread_attr_t attr;
4977 void *stAddr = NULL;
4978 size_t stSize = 0;
4979 struct sigaltstack sa;
4980 #endif
4981
4982 if (!tls_offset_inited) {
4983 tls_offset_inited = TRUE;
4984
4985 #if HAVE_KW_THREAD
4986 # if 0
4987 __asm__ ("\tear\t%r1,0\n"
4988 "\tlr\t%0,%3\n"
4989 "\tsr\t%0,%r1\n"
4990 "\tlr\t%1,%4\n"
4991 "\tsr\t%1,%r1\n"
4992 "\tlr\t%2,%5\n"
4993 "\tsr\t%2,%r1\n"
4994 : "=r" (appdomain_tls_offset),
4995 "=r" (thread_tls_offset),
4996 "=r" (lmf_tls_offset)
4997 : "r" (&tls_appdomain),
4998 "r" (&tls_current_object),
4999 "r" (&mono_lmf_addr)
5000 : "1", "cc");
5001 # endif
5002 #endif
5003 }
5004
5005 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5006
5007 /*----------------------------------------------------------*/
5008 /* Determine stack boundaries */
5009 /*----------------------------------------------------------*/
5010 if (!mono_running_on_valgrind ()) {
5011 #ifdef HAVE_PTHREAD_GETATTR_NP
5012 pthread_getattr_np( self, &attr );
5013 #elif HAVE_PTHREAD_ATTR_GET_NP
5014 pthread_attr_get_np( self, &attr );
5015 #endif
5016 pthread_attr_getstack( &attr, &stAddr, &stSize );
5017 }
5018
5019
5020 /*----------------------------------------------------------*/
5021 /* Setup an alternate signal stack */
5022 /*----------------------------------------------------------*/
5023 tls->stack_size = stSize;
5024 tls->signal_stack = mmap (0, SIGNAL_STACK_SIZE,
5025 PROT_READ|PROT_WRITE|PROT_EXEC,
5026 MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
5027 tls->signal_stack_size = SIGNAL_STACK_SIZE;
5028
5029 sa.ss_sp = tls->signal_stack;
5030 sa.ss_size = SIGNAL_STACK_SIZE;
5031 sa.ss_flags = SS_ONSTACK;
5032 sigaltstack (&sa, NULL);
5033 #endif
5034 if (!lmf_addr_key_inited) {
5035 lmf_addr_key_inited = TRUE;
5036 pthread_key_create (&lmf_addr_key, NULL);
5037 }
5038 pthread_setspecific (lmf_addr_key, &tls->lmf);
5039
5040 }
5041
5042 /*========================= End of Function ========================*/
5043
5044 /*------------------------------------------------------------------*/
5045 /* */
5046 /* Name - mono_arch_free_jit_tls_data */
5047 /* */
5048 /* Function - Free tls data. */
5049 /* */
5050 /*------------------------------------------------------------------*/
5051
5052 void
5053 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5054 {
5055 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5056 struct sigaltstack sa;
5057
5058 sa.ss_sp = tls->signal_stack;
5059 sa.ss_size = SIGNAL_STACK_SIZE;
5060 sa.ss_flags = SS_DISABLE;
5061 sigaltstack (&sa, NULL);
5062
5063 if (tls->signal_stack)
5064 munmap(tls->signal_stack, SIGNAL_STACK_SIZE);
5065 #endif
5066
5067 }
5068
5069 /*========================= End of Function ========================*/
5070
5071 /*------------------------------------------------------------------*/
5072 /* */
5073 /* Name - mono_arch_emit_this_vret_args */
5074 /* */
5075 /* Function - */
5076 /* */
5077 /*------------------------------------------------------------------*/
5078
5079 void
5080 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
5081 {
5082 int this_dreg = s390_r2;
5083
5084 if (vt_reg != -1)
5085 this_dreg = s390_r3;
5086
5087 /* add the this argument */
5088 if (this_reg != -1) {
5089 MonoInst *this;
5090 MONO_INST_NEW (cfg, this, OP_SETREG);
5091 this->type = this_type;
5092 this->sreg1 = this_reg;
5093 this->dreg = mono_regstate_next_int (cfg->rs);
5094 mono_bblock_add_inst (cfg->cbb, this);
5095 mono_call_inst_add_outarg_reg (inst, this->dreg, this_dreg, FALSE);
5096 }
5097
5098 if (vt_reg != -1) {
5099 MonoInst *vtarg;
5100 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
5101 vtarg->type = STACK_MP;
5102 vtarg->sreg1 = vt_reg;
5103 vtarg->dreg = mono_regstate_next_int (cfg->rs);
5104 mono_bblock_add_inst (cfg->cbb, vtarg);
5105 mono_call_inst_add_outarg_reg (inst, vtarg->dreg, s390_r2, FALSE);
5106 }
5107 }
5108
5109 /*========================= End of Function ========================*/
5110
5111 /*------------------------------------------------------------------*/
5112 /* */
5113 /* Name - mono_arch_get_inst_for_method */
5114 /* */
5115 /* Function - Check for opcodes we can handle directly in */
5116 /* hardware. */
5117 /* */
5118 /*------------------------------------------------------------------*/
5119
5120 MonoInst*
5121 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
5122 MonoMethodSignature *fsig, MonoInst **args)
5123 {
5124 MonoInst *ins = NULL;
5125
5126 if (cmethod->klass == mono_defaults.math_class) {
5127 if (strcmp (cmethod->name, "Sqrt") == 0) {
5128 MONO_INST_NEW (cfg, ins, OP_SQRT);
5129 ins->inst_i0 = args [0];
5130 }
5131 } else if (cmethod->klass == mono_defaults.thread_class &&
5132 strcmp (cmethod->name, "MemoryBarrier") == 0) {
5133 MONO_INST_NEW (cfg, ins, OP_MEMORY_BARRIER);
5134 } else if(cmethod->klass->image == mono_defaults.corlib &&
5135 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
5136 (strcmp (cmethod->klass->name, "Interlocked") == 0)) {
5137
5138 if (strcmp (cmethod->name, "Increment") == 0 &&
5139 fsig->params [0]->type == MONO_TYPE_I4) {
5140 MonoInst *ins_iconst;
5141
5142 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_NEW_I4);
5143 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5144 ins_iconst->inst_c0 = 1;
5145
5146 ins->inst_i0 = args [0];
5147 ins->inst_i1 = ins_iconst;
5148 } else if (strcmp (cmethod->name, "Decrement") == 0 &&
5149 fsig->params [0]->type == MONO_TYPE_I4) {
5150 MonoInst *ins_iconst;
5151
5152 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_NEW_I4);
5153 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5154 ins_iconst->inst_c0 = -1;
5155
5156 ins->inst_i0 = args [0];
5157 ins->inst_i1 = ins_iconst;
5158 } else if (strcmp (cmethod->name, "Exchange") == 0 &&
5159 fsig->params [0]->type == MONO_TYPE_I4) {
5160 MONO_INST_NEW (cfg, ins, OP_ATOMIC_EXCHANGE_I4);
5161
5162 ins->inst_i0 = args [0];
5163 ins->inst_i1 = args [1];
5164 } else if (strcmp (cmethod->name, "Add") == 0 &&
5165 fsig->params [0]->type == MONO_TYPE_I4) {
5166 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_I4);
5167
5168 ins->inst_i0 = args [0];
5169 ins->inst_i1 = args [1];
5170 }
5171 }
5172 return ins;
5173 }
5174
5175 /*========================= End of Function ========================*/
5176
5177 /*------------------------------------------------------------------*/
5178 /* */
5179 /* Name - mono_arch_print_tree */
5180 /* */
5181 /* Function - Print platform-specific opcode details. */
5182 /* */
5183 /* Returns - 1 - opcode details have been printed */
5184 /* 0 - opcode details have not been printed */
5185 /* */
5186 /*------------------------------------------------------------------*/
5187
5188 gboolean
5189 mono_arch_print_tree (MonoInst *tree, int arity)
5190 {
5191 gboolean done;
5192
5193 switch (tree->opcode) {
5194 case OP_S390_LOADARG:
5195 case OP_S390_ARGREG:
5196 case OP_S390_ARGPTR:
5197 printf ("[0x%lx(%s)]", tree->inst_offset,
5198 mono_arch_regname (tree->inst_basereg));
5199 done = 1;
5200 break;
5201 case OP_S390_STKARG:
5202 printf ("[0x%lx(previous_frame)]",
5203 tree->inst_offset);
5204 done = 1;
5205 break;
5206 case OP_S390_MOVE:
5207 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5208 tree->inst_offset, tree->unused,
5209 mono_arch_regname(tree->dreg),
5210 tree->inst_imm,
5211 mono_arch_regname(tree->sreg1));
5212 done = 1;
5213 break;
5214 case OP_S390_SETF4RET:
5215 printf ("[f%s,f%s]",
5216 mono_arch_regname (tree->dreg),
5217 mono_arch_regname (tree->sreg1));
5218 done = 1;
5219 break;
5220 case OP_TLS_GET:
5221 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5222 tree->inst_imm,
5223 mono_arch_regname (tree->sreg1));
5224 done = 1;
5225 break;
5226 case OP_S390_BKCHAIN:
5227 printf ("[previous_frame(%s)]",
5228 mono_arch_regname (tree->sreg1));
5229 done = 1;
5230 default:
5231 done = 0;
5232 }
5233 return (done);
5234 }
5235
5236 /*========================= End of Function ========================*/
5237
5238 /*------------------------------------------------------------------*/
5239 /* */
5240 /* Name - mono_arch_regalloc_cost */
5241 /* */
5242 /* Function - Determine the cost, in the number of memory */
5243 /* references, of the action of allocating the var- */
5244 /* iable VMV into a register during global register */
5245 /* allocation. */
5246 /* */
5247 /* Returns - Cost */
5248 /* */
5249 /*------------------------------------------------------------------*/
5250
5251 guint32
5252 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5253 {
5254 /* FIXME: */
5255 return 2;
5256 }
5257
5258 /*========================= End of Function ========================*/
5259
5260 /*------------------------------------------------------------------*/
5261 /* */
5262 /* Name - mono_arch_get_domain_intrinsic */
5263 /* */
5264 /* Function - */
5265 /* */
5266 /* Returns - */
5267 /* */
5268 /*------------------------------------------------------------------*/
5269
5270 MonoInst *
5271 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5272 {
5273 MonoInst *ins;
5274
5275 if (appdomain_tls_offset == -1)
5276 return NULL;
5277
5278 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5279 ins->inst_offset = appdomain_tls_offset;
5280 return (ins);
5281 }
5282
5283 /*========================= End of Function ========================*/
5284
5285 /*------------------------------------------------------------------*/
5286 /* */
5287 /* Name - mono_arch_get_thread_intrinsic */
5288 /* */
5289 /* Function - */
5290 /* */
5291 /* Returns - */
5292 /* */
5293 /*------------------------------------------------------------------*/
5294
5295 MonoInst *
5296 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5297 {
5298 MonoInst *ins;
5299
5300 if (thread_tls_offset == -1)
5301 return NULL;
5302
5303 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5304 ins->inst_offset = thread_tls_offset;
5305 return (ins);
5306 }
5307
5308 /*========================= End of Function ========================*/
5309
5310 /*------------------------------------------------------------------*/
5311 /* */
5312 /* Name - mono_arch_flush_register_windows */
5313 /* */
5314 /* Function - */
5315 /* */
5316 /* Returns - */
5317 /* */
5318 /*------------------------------------------------------------------*/
5319
5320 void
5321 mono_arch_flush_register_windows (void)
5322 {
5323 }
5324
5325 /*========================= End of Function ========================*/
5326
5327 /*------------------------------------------------------------------*/
5328 /* */
5329 /* Name - mono_arch_get_lmf_addr */
5330 /* */
5331 /* Function - */
5332 /* */
5333 /* Returns - */
5334 /* */
5335 /*------------------------------------------------------------------*/
5336
5337 gpointer
5338 mono_arch_get_lmf_addr (void)
5339 {
5340 return pthread_getspecific (lmf_addr_key);
5341 }
5342
5343 /*========================= End of Function ========================*/
5344
5345 /*------------------------------------------------------------------*/
5346 /* */
5347 /* Name - mono_arch_is_inst_imm */
5348 /* */
5349 /* Function - Determine if operand qualifies as an immediate */
5350 /* value. For s390 this is a value -32768-32768 */
5351 /* */
5352 /* Returns - True|False - is [not] immediate value. */
5353 /* */
5354 /*------------------------------------------------------------------*/
5355
5356 gboolean
5357 mono_arch_is_inst_imm (gint64 imm)
5358 {
5359 return s390_is_imm16 (imm);
5360 }
5361
5362 /*========================= End of Function ========================*/
5363
5364 /*------------------------------------------------------------------*/
5365 /* */
5366 /* Name - opcode_to_cond */
5367 /* */
5368 /* Function - Simplify the branch on condition opcode from */
5369 /* more than 20 to just a handful for easy manipu- */
5370 /* lation within the instruction emitting code. */
5371 /* */
5372 /* Returns - CMP_xxx - this simplified condition type. */
5373 /* */
5374 /*------------------------------------------------------------------*/
5375
5376 static CompRelation
5377 opcode_to_cond (int opcode)
5378 {
5379 switch (opcode) {
5380 case CEE_BEQ:
5381 case OP_CEQ:
5382 case OP_IBEQ:
5383 case OP_ICEQ:
5384 case OP_FBEQ:
5385 case OP_FCEQ:
5386 case OP_COND_EXC_EQ:
5387 return CMP_EQ;
5388 case CEE_BNE_UN:
5389 case OP_COND_EXC_NE_UN:
5390 case OP_IBNE_UN:
5391 case OP_FBNE_UN:
5392 return CMP_NE;
5393 case CEE_BLE:
5394 case OP_IBLE:
5395 case OP_FBLE:
5396 return CMP_LE;
5397 case CEE_BGE:
5398 case OP_IBGE:
5399 case OP_FBGE:
5400 return CMP_GE;
5401 case CEE_BLT:
5402 case OP_COND_EXC_LT:
5403 case OP_CLT:
5404 case OP_IBLT:
5405 case OP_ICLT:
5406 case OP_FBLT:
5407 case OP_FCLT:
5408 return CMP_LT;
5409 case CEE_BGT:
5410 case OP_COND_EXC_GT:
5411 case OP_CGT:
5412 case OP_IBGT:
5413 case OP_ICGT:
5414 case OP_FBGT:
5415 case OP_FCGT:
5416 return CMP_GT;
5417
5418 case CEE_BLE_UN:
5419 case OP_COND_EXC_LE_UN:
5420 case OP_IBLE_UN:
5421 case OP_FBLE_UN:
5422 return CMP_LE_UN;
5423 case CEE_BGE_UN:
5424 case OP_IBGE_UN:
5425 case OP_FBGE_UN:
5426 return CMP_GE_UN;
5427 case CEE_BLT_UN:
5428 case OP_CLT_UN:
5429 case OP_IBLT_UN:
5430 case OP_ICLT_UN:
5431 case OP_FBLT_UN:
5432 case OP_FCLT_UN:
5433 case OP_COND_EXC_LT_UN:
5434 return CMP_LT_UN;
5435 case CEE_BGT_UN:
5436 case OP_COND_EXC_GT_UN:
5437 case OP_CGT_UN:
5438 case OP_IBGT_UN:
5439 case OP_ICGT_UN:
5440 case OP_FCGT_UN:
5441 case OP_FBGT_UN:
5442 return CMP_GT_UN;
5443 default:
5444 printf ("%s\n", mono_inst_name (opcode));
5445 g_error("Not implemented\n");
5446 }
5447 return CMP_EQ;
5448 }
5449
5450 /*========================= End of Function ========================*/
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