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Reorganize the scan-minor-copy/scan.h header files a bit. Move the nursery copying...
[mono-project.git] / mono / mini / mini-s390.c
blob6f2f76a4780a814465a2bbd964ba501c176a8d4f
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 EMIT_COND_BRANCH(ins,cond) \
22 { \
23 if (ins->inst_true_bb->native_offset) { \
24 int displace; \
25 displace = ((cfg->native_code + \
26 ins->inst_true_bb->native_offset) - code) / 2; \
27 if (s390_is_imm16(displace)) { \
28 s390_brc (code, cond, displace); \
29 } else { \
30 s390_jcl (code, cond, displace); \
31 } \
32 } else { \
33 mono_add_patch_info (cfg, code - cfg->native_code, \
34 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
35 s390_jcl (code, cond, 0); \
36 } \
37 }
38
39 #define EMIT_UNCOND_BRANCH(ins) \
40 { \
41 if (ins->inst_target_bb->native_offset) { \
42 int displace; \
43 displace = ((cfg->native_code + \
44 ins->inst_target_bb->native_offset) - code) / 2; \
45 if (s390_is_imm16(displace)) { \
46 s390_brc (code, S390_CC_UN, displace); \
47 } else { \
48 s390_jcl (code, S390_CC_UN, displace); \
49 } \
50 } else { \
51 mono_add_patch_info (cfg, code - cfg->native_code, \
52 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
53 s390_jcl (code, S390_CC_UN, 0); \
54 } \
55 }
56
57 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
58 do { \
59 mono_add_patch_info (cfg, code - cfg->native_code, \
60 MONO_PATCH_INFO_EXC, exc_name); \
61 s390_jcl (code, cond, 0); \
62 } while (0);
63
64 #define CHECK_SRCDST_COM \
65 if (ins->dreg == ins->sreg2) { \
66 src2 = ins->sreg1; \
67 } else { \
68 src2 = ins->sreg2; \
69 if (ins->dreg != ins->sreg1) { \
70 s390_lr (code, ins->dreg, ins->sreg1); \
71 } \
72 }
73
74 #define CHECK_SRCDST_NCOM \
75 if (ins->dreg == ins->sreg2) { \
76 src2 = s390_r13; \
77 s390_lr (code, s390_r13, ins->sreg2); \
78 } else { \
79 src2 = ins->sreg2; \
80 } \
81 if (ins->dreg != ins->sreg1) { \
82 s390_lr (code, ins->dreg, ins->sreg1); \
83 }
84
85 #define CHECK_SRCDST_COM_F \
86 if (ins->dreg == ins->sreg2) { \
87 src2 = ins->sreg1; \
88 } else { \
89 src2 = ins->sreg2; \
90 if (ins->dreg != ins->sreg1) { \
91 s390_ldr (code, ins->dreg, ins->sreg1); \
92 } \
93 }
94
95 #define CHECK_SRCDST_NCOM_F \
96 if (ins->dreg == ins->sreg2) { \
97 src2 = s390_f15; \
98 s390_ldr (code, s390_r13, ins->sreg2); \
99 } else { \
100 src2 = ins->sreg2; \
101 } \
102 if (ins->dreg != ins->sreg1) { \
103 s390_ldr (code, ins->dreg, ins->sreg1); \
104 }
105
106 #define MONO_EMIT_NEW_MOVE(cfg,dest,offset,src,imm,size) do { \
107 MonoInst *inst; \
108 int tmpr = 0; \
109 int sReg, dReg; \
110 MONO_INST_NEW (cfg, inst, OP_NOP); \
111 if (size > 256) { \
112 inst->dreg = dest; \
113 inst->inst_offset = offset; \
114 inst->sreg1 = src; \
115 inst->inst_imm = imm; \
116 } else { \
117 if (s390_is_uimm12(offset)) { \
118 inst->dreg = dest; \
119 inst->inst_offset = offset; \
120 } else { \
121 dReg = mono_alloc_preg (cfg); \
122 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
123 dReg, dest, offset); \
124 inst->dreg = dReg; \
125 inst->inst_offset = 0; \
126 } \
127 if (s390_is_uimm12(imm)) { \
128 inst->sreg1 = src; \
129 inst->inst_imm = imm; \
130 } else { \
131 sReg = mono_alloc_preg (cfg); \
132 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
133 sReg, src, imm); \
134 inst->sreg1 = sReg; \
135 inst->inst_imm = 0; \
136 } \
137 } \
138 inst->opcode = OP_S390_MOVE; \
139 inst->backend.size = size; \
140 MONO_ADD_INS (cfg->cbb, inst); \
141 } while (0)
142
143 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
144 int reg = mono_alloc_preg (cfg); \
145 switch (size) { \
146 case 0: \
147 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
148 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
149 break; \
150 case 1: \
151 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
152 reg, sr, so); \
153 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
154 break; \
155 case 2: \
156 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
157 reg, sr, so); \
158 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
159 break; \
160 case 4: \
161 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
162 reg, sr, so); \
163 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
164 break; \
165 case 8: \
166 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
167 reg, sr, so); \
168 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
169 reg = mono_alloc_preg (cfg); \
170 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
171 reg, sr, so + sizeof (guint32)); \
172 mono_call_inst_add_outarg_reg(cfg, call, reg, dr + 1, FALSE); \
173 break; \
174 } \
175 } while (0)
176
177 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
178 int tmpr; \
179 switch (size) { \
180 case 0: \
181 tmpr = mono_alloc_preg (cfg); \
182 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
183 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
184 dr, dx, tmpr); \
185 break; \
186 case 1: \
187 tmpr = mono_alloc_preg (cfg); \
188 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
189 tmpr, sr, so); \
190 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
191 dr, dx, tmpr); \
192 break; \
193 case 2: \
194 tmpr = mono_alloc_preg (cfg); \
195 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
196 tmpr, sr, so); \
197 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
198 dr, dx, tmpr); \
199 break; \
200 case 4: \
201 case 8: \
202 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
203 break; \
204 } \
205 } while (0)
206
207 #undef DEBUG
208 #define DEBUG(a) if (cfg->verbose_level > 1) a
209
210 #define MAX_EXC 16
211
212 #define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
213
214 #define MAX (a, b) ((a) > (b) ? (a) : (b))
215
216 /*========================= End of Defines =========================*/
217
218 /*------------------------------------------------------------------*/
219 /* I n c l u d e s */
220 /*------------------------------------------------------------------*/
221
222 #include "mini.h"
223 #include <string.h>
224
225 #include <mono/metadata/appdomain.h>
226 #include <mono/metadata/debug-helpers.h>
227 #include <mono/metadata/profiler-private.h>
228 #include <mono/utils/mono-math.h>
229
230 #include "mini-s390.h"
231 #include "cpu-s390.h"
232 #include "jit-icalls.h"
233 #include "ir-emit.h"
234
235 /*========================= End of Includes ========================*/
236
237 /*------------------------------------------------------------------*/
238 /* T y p e d e f s */
239 /*------------------------------------------------------------------*/
240
241 typedef struct {
242 guint stack_size,
243 local_size,
244 code_size,
245 parm_size,
246 offset,
247 offStruct,
248 retStruct;
249 } size_data;
250
251 /*------------------------------------------------------------------*/
252 /* Used by the instrument_emit_epilog */
253 /*------------------------------------------------------------------*/
254
255 enum {
256 SAVE_NONE,
257 SAVE_STRUCT,
258 SAVE_ONE,
259 SAVE_TWO,
260 SAVE_R4,
261 SAVE_R8
262 };
263
264 typedef struct InstList InstList;
265
266 struct InstList {
267 InstList *prev;
268 InstList *next;
269 MonoInst *data;
270 };
271
272 typedef enum {
273 RegTypeGeneral,
274 RegTypeBase,
275 RegTypeFP,
276 RegTypeFPR4,
277 RegTypeStructByVal,
278 RegTypeStructByValInFP,
279 RegTypeStructByAddr
280 } ArgStorage;
281
282 typedef struct {
283 gint32 offset; /* offset from caller's stack */
284 gint32 offparm; /* offset from callee's stack */
285 guint16 vtsize; /* in param area */
286 guint8 reg;
287 ArgStorage regtype; /* See RegType* */
288 guint32 size; /* Size of structure used by RegTypeStructByVal */
289 } ArgInfo;
290
291 typedef struct {
292 int nargs;
293 int lastgr;
294 guint32 stack_usage;
295 guint32 struct_ret;
296 ArgInfo ret;
297 ArgInfo sigCookie;
298 size_data sz;
299 ArgInfo args [1];
300 } CallInfo;
301
302 typedef struct {
303 gint32 gr[5]; /* R2-R6 */
304 gdouble fp[3]; /* F0-F2 */
305 } __attribute__ ((packed)) RegParm;
306
307 /*========================= End of Typedefs ========================*/
308
309 /*------------------------------------------------------------------*/
310 /* P r o t o t y p e s */
311 /*------------------------------------------------------------------*/
312
313 static void indent (int);
314 static guint8 * backUpStackPtr(MonoCompile *, guint8 *, gint);
315 static void decodeParm (MonoType *, void *, int);
316 static void enter_method (MonoMethod *, RegParm *, char *);
317 static void leave_method (MonoMethod *, ...);
318 static gboolean is_regsize_var (MonoType *);
319 static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
320 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
321 static inline void add_float (guint *, size_data *, ArgInfo *);
322 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
323 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
324 gpointer mono_arch_get_lmf_addr (void);
325 static guint8 * emit_load_volatile_registers(guint8 *, MonoCompile *);
326 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *);
327
328 /*========================= End of Prototypes ======================*/
329
330 /*------------------------------------------------------------------*/
331 /* G l o b a l V a r i a b l e s */
332 /*------------------------------------------------------------------*/
333
334 int mono_exc_esp_offset = 0;
335
336 static int indent_level = 0;
337
338 static int appdomain_tls_offset = -1,
339 thread_tls_offset = -1;
340
341 pthread_key_t lmf_addr_key;
342
343 gboolean lmf_addr_key_inited = FALSE;
344
345 #if 0
346
347 extern __thread MonoDomain *tls_appdomain;
348 extern __thread MonoThread *tls_current_object;
349 extern __thread gpointer mono_lmf_addr;
350
351 #endif
352
353 /*====================== End of Global Variables ===================*/
354
355 /*------------------------------------------------------------------*/
356 /* */
357 /* Name - mono_arch_regname */
358 /* */
359 /* Function - Returns the name of the register specified by */
360 /* the input parameter. */
361 /* */
362 /*------------------------------------------------------------------*/
363
364 const char*
365 mono_arch_regname (int reg) {
366 static const char * rnames[] = {
367 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
368 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
369 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
370 "s390_r15"
371 };
372
373 if (reg >= 0 && reg < 16)
374 return rnames [reg];
375 else
376 return "unknown";
377 }
378
379 /*========================= End of Function ========================*/
380
381 /*------------------------------------------------------------------*/
382 /* */
383 /* Name - mono_arch_fregname */
384 /* */
385 /* Function - Returns the name of the register specified by */
386 /* the input parameter. */
387 /* */
388 /*------------------------------------------------------------------*/
389
390 const char*
391 mono_arch_fregname (int reg) {
392 static const char * rnames[] = {
393 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
394 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
395 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
396 "s390_f15"
397 };
398
399 if (reg >= 0 && reg < 16)
400 return rnames [reg];
401 else
402 return "unknown";
403 }
404
405 /*========================= End of Function ========================*/
406
407 /*------------------------------------------------------------------*/
408 /* */
409 /* Name - arch_get_argument_info */
410 /* */
411 /* Function - Gathers information on parameters such as size, */
412 /* alignment, and padding. arg_info should be large */
413 /* enough to hold param_count + 1 entries. */
414 /* */
415 /* Parameters - @csig - Method signature */
416 /* @param_count - No. of parameters to consider */
417 /* @arg_info - An array to store the result info */
418 /* */
419 /* Returns - Size of the activation frame */
420 /* */
421 /*------------------------------------------------------------------*/
422
423 int
424 mono_arch_get_argument_info (MonoGenericSharingContext *gsctx, MonoMethodSignature *csig,
425 int param_count,
426 MonoJitArgumentInfo *arg_info)
427 {
428 int k, frame_size = 0;
429 int size, align, pad;
430 int offset = 8;
431
432 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
433 frame_size += sizeof (gpointer);
434 offset += 4;
435 }
436
437 arg_info [0].offset = offset;
438
439 if (csig->hasthis) {
440 frame_size += sizeof (gpointer);
441 offset += 4;
442 }
443
444 arg_info [0].size = frame_size;
445
446 for (k = 0; k < param_count; k++) {
447
448 if (csig->pinvoke)
449 size = mono_type_native_stack_size (csig->params [k], &align);
450 else
451 size = mini_type_stack_size (NULL, csig->params [k], &align);
452
453 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
454 arg_info [k].pad = pad;
455 frame_size += size;
456 arg_info [k + 1].pad = 0;
457 arg_info [k + 1].size = size;
458 offset += pad;
459 arg_info [k + 1].offset = offset;
460 offset += size;
461 }
462
463 align = MONO_ARCH_FRAME_ALIGNMENT;
464 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
465 arg_info [k].pad = pad;
466
467 return frame_size;
468 }
469
470 /*========================= End of Function ========================*/
471
472 /*------------------------------------------------------------------*/
473 /* */
474 /* Name - retFitsInReg. */
475 /* */
476 /* Function - Determines if a value can be returned in one or */
477 /* two registers. */
478 /* */
479 /*------------------------------------------------------------------*/
480
481 static inline gboolean
482 retFitsInReg(guint32 size)
483 {
484 switch (size) {
485 case 0:
486 case 1:
487 case 2:
488 case 4:
489 case 8:
490 return (TRUE);
491 break;
492 default:
493 return (FALSE);
494 }
495 }
496
497 /*========================= End of Function ========================*/
498
499 /*------------------------------------------------------------------*/
500 /* */
501 /* Name - backStackPtr. */
502 /* */
503 /* Function - Restore Stack Pointer to previous frame. */
504 /* */
505 /*------------------------------------------------------------------*/
506
507 static inline guint8 *
508 backUpStackPtr(MonoCompile *cfg, guint8 *code, gint framePtr)
509 {
510 int stackSize = cfg->stack_usage;
511
512 if (s390_is_uimm16 (cfg->stack_usage)) {
513 s390_ahi (code, framePtr, cfg->stack_usage);
514 } else {
515 while (stackSize > 32767) {
516 s390_ahi (code, framePtr, 32767);
517 stackSize -= 32767;
518 }
519 s390_ahi (code, framePtr, stackSize);
520 }
521 return (code);
522 }
523
524 /*========================= End of Function ========================*/
525
526 /*------------------------------------------------------------------*/
527 /* */
528 /* Name - indent */
529 /* */
530 /* Function - Perform nice indenting to current level */
531 /* */
532 /*------------------------------------------------------------------*/
533
534 static void
535 indent (int diff) {
536 int v;
537 if (diff < 0)
538 indent_level += diff;
539 v = indent_level;
540 printf("[%3d] ",v);
541 while (v-- > 0) {
542 printf (". ");
543 }
544 if (diff > 0)
545 indent_level += diff;
546 }
547
548 /*========================= End of Function ========================*/
549
550 /*------------------------------------------------------------------*/
551 /* */
552 /* Name - decodeParm */
553 /* */
554 /* Function - Decode a parameter for the trace. */
555 /* */
556 /*------------------------------------------------------------------*/
557
558 static void
559 decodeParm(MonoType *type, void *curParm, int size)
560 {
561 guint32 simpleType;
562
563 if (type->byref) {
564 printf("[BYREF:%p], ", *((char **) curParm));
565 } else {
566 simpleType = mono_type_get_underlying_type(type)->type;
567 enum_parmtype:
568 switch (simpleType) {
569 case MONO_TYPE_I :
570 printf ("[INTPTR:%p], ", *((int **) curParm));
571 break;
572 case MONO_TYPE_U :
573 printf ("[UINTPTR:%p], ", *((int **) curParm));
574 break;
575 case MONO_TYPE_BOOLEAN :
576 printf ("[BOOL:%d], ", *((int *) curParm));
577 break;
578 case MONO_TYPE_CHAR :
579 printf ("[CHAR:%c], ", *((int *) curParm));
580 break;
581 case MONO_TYPE_I1 :
582 printf ("[INT1:%d], ", *((int *) curParm));
583 break;
584 case MONO_TYPE_I2 :
585 printf ("[INT2:%d], ", *((int *) curParm));
586 break;
587 case MONO_TYPE_I4 :
588 printf ("[INT4:%d], ", *((int *) curParm));
589 break;
590 case MONO_TYPE_U1 :
591 printf ("[UINT1:%u], ", *((unsigned int *) curParm));
592 break;
593 case MONO_TYPE_U2 :
594 printf ("[UINT2:%u], ", *((guint16 *) curParm));
595 break;
596 case MONO_TYPE_U4 :
597 printf ("[UINT4:%u], ", *((guint32 *) curParm));
598 break;
599 case MONO_TYPE_U8 :
600 printf ("[UINT8:%llu], ", *((guint64 *) curParm));
601 break;
602 case MONO_TYPE_STRING : {
603 MonoString *s = *((MonoString **) curParm);
604 if (s) {
605 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
606 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
607 } else {
608 printf("[STRING:null], ");
609 }
610 break;
611 }
612 case MONO_TYPE_CLASS :
613 case MONO_TYPE_OBJECT : {
614 MonoObject *obj = *((MonoObject **) curParm);
615 MonoClass *class;
616 if ((obj) && (obj->vtable)) {
617 printf("[CLASS/OBJ:");
618 class = obj->vtable->klass;
619 printf("%p [%p] ",obj,curParm);
620 // if (class == mono_defaults.string_class) {
621 // printf("[STRING:%p:%s]",
622 // *obj, mono_string_to_utf8 (obj));
623 // } else if (class == mono_defaults.int32_class) {
624 // printf("[INT32:%p:%d]",
625 // obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
626 // } else
627 // printf("[%s.%s:%p]",
628 // class->name_space, class->name, obj);
629 printf("], ");
630 } else {
631 printf("[OBJECT:null], ");
632 }
633 break;
634 }
635 case MONO_TYPE_PTR :
636 printf("[PTR:%p], ", *((gpointer **) (curParm)));
637 break;
638 case MONO_TYPE_FNPTR :
639 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
640 break;
641 case MONO_TYPE_ARRAY :
642 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
643 break;
644 case MONO_TYPE_SZARRAY :
645 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
646 break;
647 case MONO_TYPE_I8 :
648 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
649 break;
650 case MONO_TYPE_R4 :
651 printf("[FLOAT4:%g], ", *((double *) (curParm)));
652 break;
653 case MONO_TYPE_R8 :
654 printf("[FLOAT8:%g], ", *((double *) (curParm)));
655 break;
656 case MONO_TYPE_VALUETYPE : {
657 int i;
658 MonoMarshalType *info;
659
660 if (type->data.klass->enumtype) {
661 simpleType = mono_class_enum_basetype (type->data.klass)->type;
662 printf("{VALUETYPE} - ");
663 goto enum_parmtype;
664 }
665
666 info = mono_marshal_load_type_info (type->data.klass);
667
668 if ((info->native_size == sizeof(float)) &&
669 (info->num_fields == 1) &&
670 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
671 printf("[FLOAT4:%f], ", *((float *) (curParm)));
672 break;
673 }
674
675 if ((info->native_size == sizeof(double)) &&
676 (info->num_fields == 1) &&
677 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
678 printf("[FLOAT8:%g], ", *((double *) (curParm)));
679 break;
680 }
681
682 printf("[VALUETYPE:");
683 for (i = 0; i < size; i++)
684 printf("%02x,", *((guint8 *)curParm+i));
685 printf("]");
686 break;
687 }
688 case MONO_TYPE_TYPEDBYREF: {
689 int i;
690 printf("[TYPEDBYREF:");
691 for (i = 0; i < size; i++)
692 printf("%02x,", *((guint8 *)curParm+i));
693 printf("]");
694 break;
695 }
696 default :
697 printf("[?? - %d], ",simpleType);
698 }
699 }
700 }
701
702 /*========================= End of Function ========================*/
703
704 //static int lc = 0;
705
706 /*------------------------------------------------------------------*/
707 /* */
708 /* Name - enter_method */
709 /* */
710 /* Function - Perform tracing of the entry to the current */
711 /* method. */
712 /* */
713 /*------------------------------------------------------------------*/
714
715 static void
716 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
717 {
718 int i, oParm = 0, iParm = 0;
719 MonoObject *obj;
720 MonoMethodSignature *sig;
721 char *fname;
722 guint32 ip;
723 CallInfo *cinfo;
724 ArgInfo *ainfo;
725 void *curParm;
726
727 fname = mono_method_full_name (method, TRUE);
728 indent (1);
729 printf ("ENTER: %s(", fname);
730 g_free (fname);
731
732 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
733 printf (") ip: %p sp: %p - ", (gpointer) ip, sp);
734
735 if (rParm == NULL)
736 return;
737
738 sig = mono_method_signature (method);
739
740 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
741
742 if (cinfo->struct_ret) {
743 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
744 iParm = 1;
745 }
746
747 if (sig->hasthis) {
748 gpointer *this = (gpointer *) rParm->gr[iParm];
749 obj = (MonoObject *) this;
750 if (method->klass->valuetype) {
751 if (obj) {
752 printf("this:[value:%p:%08x], ",
753 this, *((guint32 *)(this+sizeof(MonoObject))));
754 } else
755 printf ("this:[NULL], ");
756 } else {
757 if (obj) {
758 // class = obj->vtable->klass;
759 // if (class == mono_defaults.string_class) {
760 // printf ("this:[STRING:%p:%s], ",
761 // obj, mono_string_to_utf8 ((MonoString *)obj));
762 // } else {
763 // printf ("this:%p[%s.%s], ",
764 // obj, class->name_space, class->name);
765 // }
766 printf("this:%p, ",obj);
767 } else
768 printf ("this:NULL, ");
769 }
770 oParm++;
771 }
772
773 for (i = 0; i < sig->param_count; ++i) {
774 ainfo = &cinfo->args[i + oParm];
775 switch (ainfo->regtype) {
776 case RegTypeGeneral :
777 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
778 break;
779 case RegTypeFP :
780 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
781 break;
782 case RegTypeBase :
783 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
784 break;
785 case RegTypeStructByVal :
786 if (ainfo->reg != STK_BASE)
787 curParm = &(rParm->gr[ainfo->reg-2]);
788 else
789 curParm = sp+ainfo->offset;
790
791 if (retFitsInReg (ainfo->vtsize))
792 decodeParm(sig->params[i],
793 curParm,
794 ainfo->size);
795 else
796 decodeParm(sig->params[i],
797 *((char **) curParm),
798 ainfo->vtsize);
799 break;
800 case RegTypeStructByAddr :
801 if (ainfo->reg != STK_BASE)
802 curParm = &(rParm->gr[ainfo->reg-2]);
803 else
804 curParm = sp+ainfo->offset;
805
806 decodeParm(sig->params[i],
807 *((char **) curParm),
808 ainfo->vtsize);
809 break;
810
811 default :
812 printf("???, ");
813 }
814 }
815 printf("\n");
816 g_free(cinfo);
817 }
818
819 /*========================= End of Function ========================*/
820
821 /*------------------------------------------------------------------*/
822 /* */
823 /* Name - leave_method */
824 /* */
825 /* Function - */
826 /* */
827 /*------------------------------------------------------------------*/
828
829 static void
830 leave_method (MonoMethod *method, ...)
831 {
832 MonoType *type;
833 char *fname;
834 guint32 ip;
835 va_list ap;
836
837 va_start(ap, method);
838
839 fname = mono_method_full_name (method, TRUE);
840 indent (-1);
841 printf ("LEAVE: %s", fname);
842 g_free (fname);
843
844 type = mono_method_signature (method)->ret;
845
846 handle_enum:
847 switch (type->type) {
848 case MONO_TYPE_VOID:
849 break;
850 case MONO_TYPE_BOOLEAN: {
851 int val = va_arg (ap, int);
852 if (val)
853 printf ("[TRUE:%d]", val);
854 else
855 printf ("[FALSE]");
856
857 break;
858 }
859 case MONO_TYPE_CHAR: {
860 int val = va_arg (ap, int);
861 printf ("[CHAR:%d]", val);
862 break;
863 }
864 case MONO_TYPE_I1: {
865 int val = va_arg (ap, int);
866 printf ("[INT1:%d]", val);
867 break;
868 }
869 case MONO_TYPE_U1: {
870 int val = va_arg (ap, int);
871 printf ("[UINT1:%d]", val);
872 break;
873 }
874 case MONO_TYPE_I2: {
875 int val = va_arg (ap, int);
876 printf ("[INT2:%d]", val);
877 break;
878 }
879 case MONO_TYPE_U2: {
880 int val = va_arg (ap, int);
881 printf ("[UINT2:%d]", val);
882 break;
883 }
884 case MONO_TYPE_I4: {
885 int val = va_arg (ap, int);
886 printf ("[INT4:%d]", val);
887 break;
888 }
889 case MONO_TYPE_U4: {
890 int val = va_arg (ap, int);
891 printf ("[UINT4:%d]", val);
892 break;
893 }
894 case MONO_TYPE_I: {
895 int val = va_arg (ap, int);
896 printf ("[INT:%d]", val);
897 printf("]");
898 break;
899 }
900 case MONO_TYPE_U: {
901 int val = va_arg (ap, int);
902 printf ("[UINT:%d]", val);
903 printf("]");
904 break;
905 }
906 case MONO_TYPE_STRING: {
907 MonoString *s = va_arg (ap, MonoString *);
908 ;
909 if (s) {
910 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
911 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
912 } else
913 printf ("[STRING:null], ");
914 break;
915 }
916 case MONO_TYPE_CLASS:
917 case MONO_TYPE_OBJECT: {
918 MonoObject *o = va_arg (ap, MonoObject *);
919
920 // if ((o) && (o->vtable)) {
921 // if (o->vtable->klass == mono_defaults.boolean_class) {
922 // printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
923 // } else if (o->vtable->klass == mono_defaults.int32_class) {
924 // printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
925 // } else if (o->vtable->klass == mono_defaults.int64_class) {
926 // printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
927 // } else
928 // printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
929 // } else
930 printf ("[OBJECT:%p]", o);
931
932 break;
933 }
934 case MONO_TYPE_PTR:
935 case MONO_TYPE_FNPTR:
936 case MONO_TYPE_ARRAY:
937 case MONO_TYPE_SZARRAY: {
938 gpointer p = va_arg (ap, gpointer);
939 printf ("[result=%p]", p);
940 break;
941 }
942 case MONO_TYPE_I8: {
943 gint64 l = va_arg (ap, gint64);
944 printf ("[LONG:%lld]", l);
945 break;
946 }
947 case MONO_TYPE_U8: {
948 guint64 l = va_arg (ap, guint64);
949 printf ("[ULONG:%llu]", l);
950 break;
951 }
952 case MONO_TYPE_R4: {
953 double f;
954 f = va_arg (ap, double);
955 printf ("[FLOAT4:%g]\n", f);
956 break;
957 }
958 case MONO_TYPE_R8: {
959 double f = va_arg (ap, double);
960 printf ("[FLOAT8:%g]\n", f);
961 break;
962 }
963 case MONO_TYPE_VALUETYPE: {
964 MonoMarshalType *info;
965 if (type->data.klass->enumtype) {
966 type = mono_class_enum_basetype (type->data.klass);
967 goto handle_enum;
968 } else {
969 guint8 *p = va_arg (ap, gpointer);
970 int j, size, align;
971
972 info = mono_marshal_load_type_info (type->data.klass);
973
974 if ((info->native_size == sizeof(float)) &&
975 (info->num_fields == 1) &&
976 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
977 double f = va_arg (ap, double);
978 printf("[FLOAT4:%g]\n", (double) f);
979 break;
980 }
981
982 if ((info->native_size == sizeof(double)) &&
983 (info->num_fields == 1) &&
984 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
985 double f = va_arg (ap, double);
986 printf("[FLOAT8:%g]\n", f);
987 break;
988 }
989
990 size = mono_type_size (type, &align);
991 switch (size) {
992 case 1:
993 case 2:
994 case 4:
995 case 8:
996 printf ("[");
997 for (j = 0; p && j < size; j++)
998 printf ("%02x,", p [j]);
999 printf ("]\n");
1000 break;
1001 default:
1002 printf ("[VALUERET]\n");
1003 }
1004 }
1005 break;
1006 }
1007 case MONO_TYPE_TYPEDBYREF: {
1008 guint8 *p = va_arg (ap, gpointer);
1009 int j, size, align;
1010 size = mono_type_size (type, &align);
1011 switch (size) {
1012 case 1:
1013 case 2:
1014 case 4:
1015 case 8:
1016 printf ("[");
1017 for (j = 0; p && j < size; j++)
1018 printf ("%02x,", p [j]);
1019 printf ("]\n");
1020 break;
1021 default:
1022 printf ("[TYPEDBYREF]\n");
1023 }
1024 }
1025 break;
1026 default:
1027 printf ("(unknown return type %x)",
1028 mono_method_signature (method)->ret->type);
1029 }
1030
1031 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
1032 printf (" ip: %p\n", (gpointer) ip);
1033 }
1034
1035 /*========================= End of Function ========================*/
1036
1037 /*------------------------------------------------------------------*/
1038 /* */
1039 /* Name - mono_arch_cpu_init */
1040 /* */
1041 /* Function - Perform CPU specific initialization to execute */
1042 /* managed code. */
1043 /* */
1044 /*------------------------------------------------------------------*/
1045
1046 void
1047 mono_arch_cpu_init (void)
1048 {
1049 guint mode = 1;
1050
1051 /*--------------------------------------*/
1052 /* Set default rounding mode for FP */
1053 /*--------------------------------------*/
1054 __asm__ ("SRNM\t%0\n\t"
1055 : : "m" (mode));
1056 }
1057
1058 /*========================= End of Function ========================*/
1059
1060
1061 /*
1062 * Initialize architecture specific code.
1063 */
1064 void
1065 mono_arch_init (void)
1066 {
1067 }
1068
1069 /*
1070 * Cleanup architecture specific code.
1071 */
1072 void
1073 mono_arch_cleanup (void)
1074 {
1075 }
1076
1077 /*------------------------------------------------------------------*/
1078 /* */
1079 /* Name - mono_arch_cpu_optimizations */
1080 /* */
1081 /* Function - Returns the optimizations supported on this CPU */
1082 /* */
1083 /*------------------------------------------------------------------*/
1084
1085 guint32
1086 mono_arch_cpu_optimizations (guint32 *exclude_mask)
1087 {
1088 guint32 opts = 0;
1089
1090 /*----------------------------------------------------------*/
1091 /* no s390-specific optimizations yet */
1092 /*----------------------------------------------------------*/
1093 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1094 // *exclude_mask = MONO_OPT_INLINE;
1095 return opts;
1096 }
1097
1098 /*========================= End of Function ========================*/
1099
1100 /*------------------------------------------------------------------*/
1101 /* */
1102 /* Name - mono_arch_cpu_enumerate_simd_versions */
1103 /* */
1104 /* Function - Returns the SIMD instruction sets on this CPU */
1105 /* */
1106 /*------------------------------------------------------------------*/
1107 guint32
1108 mono_arch_cpu_enumerate_simd_versions (void)
1109 {
1110 /* SIMD is currently unimplemented */
1111 return 0;
1112 }
1113 /*========================= End of Function ========================*/
1114
1115 /*------------------------------------------------------------------*/
1116 /* */
1117 /* Name - */
1118 /* */
1119 /* Function - */
1120 /* */
1121 /*------------------------------------------------------------------*/
1122
1123 static gboolean
1124 is_regsize_var (MonoType *t) {
1125 if (t->byref)
1126 return TRUE;
1127 switch (mono_type_get_underlying_type (t)->type) {
1128 case MONO_TYPE_I4:
1129 case MONO_TYPE_U4:
1130 case MONO_TYPE_I:
1131 case MONO_TYPE_U:
1132 case MONO_TYPE_PTR:
1133 case MONO_TYPE_FNPTR:
1134 return TRUE;
1135 case MONO_TYPE_OBJECT:
1136 case MONO_TYPE_STRING:
1137 case MONO_TYPE_CLASS:
1138 case MONO_TYPE_SZARRAY:
1139 case MONO_TYPE_ARRAY:
1140 return FALSE;
1141 case MONO_TYPE_VALUETYPE:
1142 if (t->data.klass->enumtype)
1143 return is_regsize_var (mono_class_enum_basetype (t->data.klass));
1144 return FALSE;
1145 }
1146 return FALSE;
1147 }
1148
1149 /*========================= End of Function ========================*/
1150
1151 /*------------------------------------------------------------------*/
1152 /* */
1153 /* Name - mono_arch_get_allocatable_int_vars */
1154 /* */
1155 /* Function - */
1156 /* */
1157 /*------------------------------------------------------------------*/
1158
1159 GList *
1160 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1161 {
1162 GList *vars = NULL;
1163 int i;
1164
1165 for (i = 0; i < cfg->num_varinfo; i++) {
1166 MonoInst *ins = cfg->varinfo [i];
1167 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1168
1169 /* unused vars */
1170 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1171 continue;
1172
1173 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1174 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1175 continue;
1176
1177 /* we can only allocate 32 bit values */
1178 if (is_regsize_var (ins->inst_vtype)) {
1179 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1180 g_assert (i == vmv->idx);
1181 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1182 }
1183 }
1184
1185 return vars;
1186 }
1187
1188 /*========================= End of Function ========================*/
1189
1190 /*------------------------------------------------------------------*/
1191 /* */
1192 /* Name - mono_arch_global_int_regs */
1193 /* */
1194 /* Function - Return a list of usable integer registers. */
1195 /* */
1196 /*------------------------------------------------------------------*/
1197
1198 GList *
1199 mono_arch_get_global_int_regs (MonoCompile *cfg)
1200 {
1201 GList *regs = NULL;
1202 MonoMethodHeader *header;
1203 int i, top = 13;
1204
1205 header = cfg->header;
1206 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1207 cfg->frame_reg = s390_r11;
1208
1209 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1210 top = 12;
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 - mono_arch_is_inst_imm */
1239 /* */
1240 /*------------------------------------------------------------------*/
1241
1242 gboolean
1243 mono_arch_is_inst_imm (gint64 imm)
1244 {
1245 /* The lowering pass will take care of it */
1246 return TRUE;
1247 }
1248
1249 /*========================= End of Function ========================*/
1250
1251 /*------------------------------------------------------------------*/
1252 /* */
1253 /* Name - add_general */
1254 /* */
1255 /* Function - Determine code and stack size incremements for a */
1256 /* parameter. */
1257 /* */
1258 /*------------------------------------------------------------------*/
1259
1260 static void inline
1261 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1262 {
1263 int disp;
1264
1265 if (simple) {
1266 if (*gr > S390_LAST_ARG_REG) {
1267 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1268 ainfo->offset = sz->stack_size;
1269 ainfo->reg = STK_BASE;
1270 ainfo->regtype = RegTypeBase;
1271 sz->stack_size += sizeof(int);
1272 sz->local_size += sizeof(int);
1273 sz->offStruct += sizeof(int);
1274 sz->code_size += 12;
1275 } else {
1276 ainfo->reg = *gr;
1277 sz->code_size += 8;
1278 }
1279 } else {
1280 if (*gr > S390_LAST_ARG_REG - 1) {
1281 disp = sz->stack_size;
1282 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1283 disp = sz->stack_size - disp;
1284 ainfo->offset = sz->stack_size;
1285 ainfo->reg = STK_BASE;
1286 ainfo->regtype = RegTypeBase;
1287 sz->stack_size += sizeof(long long);
1288 sz->local_size += (sizeof(long long) + disp);
1289 sz->offStruct += (sizeof(long long) + disp);
1290 sz->code_size += 10;
1291 } else {
1292 ainfo->reg = *gr;
1293 sz->code_size += 8;
1294 }
1295 (*gr) ++;
1296 }
1297 (*gr) ++;
1298 }
1299
1300 /*========================= End of Function ========================*/
1301
1302 /*------------------------------------------------------------------*/
1303 /* */
1304 /* Name - add_stackParm */
1305 /* */
1306 /* Function - Determine code and stack size incremements for a */
1307 /* parameter. */
1308 /* */
1309 /*------------------------------------------------------------------*/
1310
1311 static void inline
1312 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1313 {
1314 if (*gr > S390_LAST_ARG_REG) {
1315 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1316 ainfo->reg = STK_BASE;
1317 ainfo->offset = sz->stack_size;
1318 sz->stack_size += sizeof (gpointer);
1319 sz->parm_size += sizeof(gpointer);
1320 sz->offStruct += sizeof(gpointer);
1321 } else {
1322 ainfo->reg = *gr;
1323 ainfo->offset = sz->stack_size;
1324 }
1325 (*gr) ++;
1326 ainfo->offparm = sz->offset;
1327 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1328 ainfo->size = size;
1329 ainfo->regtype = RegTypeStructByAddr;
1330 ainfo->vtsize = size;
1331 sz->parm_size += size;
1332 }
1333
1334 /*========================= End of Function ========================*/
1335
1336 /*------------------------------------------------------------------*/
1337 /* */
1338 /* Name - add_float */
1339 /* */
1340 /* Function - Determine code and stack size incremements for a */
1341 /* float parameter. */
1342 /* */
1343 /*------------------------------------------------------------------*/
1344
1345 static void inline
1346 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1347 {
1348 if ((*fr) <= S390_LAST_FPARG_REG) {
1349 ainfo->regtype = RegTypeFP;
1350 ainfo->reg = *fr;
1351 sz->code_size += 4;
1352 (*fr) += 2;
1353 }
1354 else {
1355 ainfo->offset = sz->stack_size;
1356 ainfo->reg = STK_BASE;
1357 ainfo->regtype = RegTypeBase;
1358 sz->code_size += 4;
1359 sz->stack_size += ainfo->size;
1360 sz->local_size += ainfo->size;
1361 sz->offStruct += ainfo->size;
1362 }
1363 }
1364
1365 /*========================= End of Function ========================*/
1366
1367 /*------------------------------------------------------------------*/
1368 /* */
1369 /* Name - get_call_info */
1370 /* */
1371 /* Function - Determine the amount of space required for code */
1372 /* and stack. In addition determine starting points */
1373 /* for stack-based parameters, and area for struct- */
1374 /* ures being returned on the stack. */
1375 /* */
1376 /*------------------------------------------------------------------*/
1377
1378 static CallInfo *
1379 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1380 {
1381 guint i, fr, gr, size;
1382 int nParm = sig->hasthis + sig->param_count;
1383 MonoType *ret_type;
1384 guint32 simpletype, align;
1385 CallInfo *cinfo;
1386 size_data *sz;
1387 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1388
1389 if (mp)
1390 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1391 else
1392 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1393
1394 fr = 0;
1395 gr = s390_r2;
1396 nParm = 0;
1397 cinfo->struct_ret = 0;
1398 sz = &cinfo->sz;
1399 sz->offset = 0;
1400 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1401 sz->retStruct = 0;
1402 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1403 sz->code_size = 0;
1404 sz->parm_size = 0;
1405 sz->local_size = 0;
1406
1407 /*----------------------------------------------------------*/
1408 /* We determine the size of the return code/stack in case we*/
1409 /* need to reserve a register to be used to address a stack */
1410 /* area that the callee will use. */
1411 /*----------------------------------------------------------*/
1412
1413 ret_type = mono_type_get_underlying_type (sig->ret);
1414 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1415 simpletype = ret_type->type;
1416 enum_retvalue:
1417 switch (simpletype) {
1418 case MONO_TYPE_BOOLEAN:
1419 case MONO_TYPE_I1:
1420 case MONO_TYPE_U1:
1421 case MONO_TYPE_I2:
1422 case MONO_TYPE_U2:
1423 case MONO_TYPE_CHAR:
1424 case MONO_TYPE_I4:
1425 case MONO_TYPE_U4:
1426 case MONO_TYPE_I:
1427 case MONO_TYPE_U:
1428 case MONO_TYPE_CLASS:
1429 case MONO_TYPE_OBJECT:
1430 case MONO_TYPE_SZARRAY:
1431 case MONO_TYPE_ARRAY:
1432 case MONO_TYPE_PTR:
1433 case MONO_TYPE_FNPTR:
1434 case MONO_TYPE_STRING:
1435 cinfo->ret.reg = s390_r2;
1436 sz->code_size += 4;
1437 break;
1438 case MONO_TYPE_R4:
1439 case MONO_TYPE_R8:
1440 cinfo->ret.reg = s390_f0;
1441 sz->code_size += 4;
1442 break;
1443 case MONO_TYPE_I8:
1444 case MONO_TYPE_U8:
1445 cinfo->ret.reg = s390_r2;
1446 sz->code_size += 4;
1447 break;
1448 case MONO_TYPE_GENERICINST:
1449 if (!mono_type_generic_inst_is_valuetype (ret_type)) {
1450 cinfo->ret.reg = s390_r2;
1451 sz->code_size += 4;
1452 break;
1453 }
1454 /* Fall through */
1455 case MONO_TYPE_VALUETYPE: {
1456 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1457 if (klass->enumtype) {
1458 simpletype = mono_class_enum_basetype (klass)->type;
1459 goto enum_retvalue;
1460 }
1461 if (sig->pinvoke)
1462 size = mono_class_native_size (klass, &align);
1463 else
1464 size = mono_class_value_size (klass, &align);
1465
1466 cinfo->ret.reg = s390_r2;
1467 cinfo->struct_ret = 1;
1468 cinfo->ret.size = size;
1469 cinfo->ret.vtsize = size;
1470 gr++;
1471 break;
1472 }
1473 case MONO_TYPE_TYPEDBYREF:
1474 size = sizeof (MonoTypedRef);
1475 cinfo->ret.reg = s390_r2;
1476 cinfo->struct_ret = 1;
1477 cinfo->ret.size = size;
1478 cinfo->ret.vtsize = size;
1479 gr++;
1480 break;
1481 case MONO_TYPE_VOID:
1482 break;
1483 default:
1484 g_error ("mini-s390: cannot handle as return value 0x%x (0x%x)", sig->ret->type,simpletype);
1485 }
1486
1487 if (sig->hasthis) {
1488 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1489 cinfo->args[nParm].size = sizeof(gpointer);
1490 nParm++;
1491 }
1492
1493 /*----------------------------------------------------------*/
1494 /* We determine the size of the parameter code and stack */
1495 /* requirements by checking the types and sizes of the */
1496 /* parameters. */
1497 /*----------------------------------------------------------*/
1498
1499 for (i = 0; i < sig->param_count; ++i) {
1500 MonoType *ptype;
1501
1502 /*--------------------------------------------------*/
1503 /* Handle vararg type calls. All args are put on */
1504 /* the stack. */
1505 /*--------------------------------------------------*/
1506 if ((sig->call_convention == MONO_CALL_VARARG) &&
1507 (i == sig->sentinelpos)) {
1508 gr = S390_LAST_ARG_REG + 1;
1509 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1510 }
1511
1512 if (sig->params [i]->byref) {
1513 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1514 cinfo->args[nParm].size = sizeof(gpointer);
1515 nParm++;
1516 continue;
1517 }
1518
1519 ptype = mono_type_get_underlying_type (sig->params [i]);
1520 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1521 simpletype = ptype->type;
1522 switch (simpletype) {
1523 case MONO_TYPE_BOOLEAN:
1524 case MONO_TYPE_I1:
1525 case MONO_TYPE_U1:
1526 cinfo->args[nParm].size = sizeof(char);
1527 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1528 nParm++;
1529 break;
1530 case MONO_TYPE_I2:
1531 case MONO_TYPE_U2:
1532 case MONO_TYPE_CHAR:
1533 cinfo->args[nParm].size = sizeof(short);
1534 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1535 nParm++;
1536 break;
1537 case MONO_TYPE_I4:
1538 case MONO_TYPE_U4:
1539 cinfo->args[nParm].size = sizeof(int);
1540 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1541 nParm++;
1542 break;
1543 case MONO_TYPE_I:
1544 case MONO_TYPE_U:
1545 case MONO_TYPE_PTR:
1546 case MONO_TYPE_FNPTR:
1547 case MONO_TYPE_CLASS:
1548 case MONO_TYPE_OBJECT:
1549 case MONO_TYPE_STRING:
1550 case MONO_TYPE_SZARRAY:
1551 case MONO_TYPE_ARRAY:
1552 cinfo->args[nParm].size = sizeof(gpointer);
1553 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1554 nParm++;
1555 break;
1556 case MONO_TYPE_I8:
1557 case MONO_TYPE_U8:
1558 cinfo->args[nParm].size = sizeof(long long);
1559 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1560 nParm++;
1561 break;
1562 case MONO_TYPE_R4:
1563 cinfo->args[nParm].size = sizeof(float);
1564 add_float (&fr, sz, cinfo->args+nParm);
1565 nParm++;
1566 break;
1567 case MONO_TYPE_R8:
1568 cinfo->args[nParm].size = sizeof(double);
1569 add_float (&fr, sz, cinfo->args+nParm);
1570 nParm++;
1571 break;
1572 case MONO_TYPE_GENERICINST:
1573 if (!mono_type_generic_inst_is_valuetype (ptype)) {
1574 cinfo->args[nParm].size = sizeof(gpointer);
1575 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1576 nParm++;
1577 break;
1578 }
1579 /* Fall through */
1580 case MONO_TYPE_VALUETYPE: {
1581 MonoMarshalType *info;
1582 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1583 if (sig->pinvoke)
1584 size = mono_class_native_size (klass, &align);
1585 else
1586 size = mono_class_value_size (klass, &align);
1587
1588 info = mono_marshal_load_type_info (klass);
1589
1590 if ((info->native_size == sizeof(float)) &&
1591 (info->num_fields == 1) &&
1592 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1593 cinfo->args[nParm].size = sizeof(float);
1594 add_float(&fr, sz, cinfo->args+nParm);
1595 nParm ++;
1596 break;
1597 }
1598
1599 if ((info->native_size == sizeof(double)) &&
1600 (info->num_fields == 1) &&
1601 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1602 cinfo->args[nParm].size = sizeof(double);
1603 add_float(&fr, sz, cinfo->args+nParm);
1604 nParm ++;
1605 break;
1606 }
1607
1608 cinfo->args[nParm].vtsize = 0;
1609 cinfo->args[nParm].size = 0;
1610
1611 switch (size) {
1612 /*----------------------------------*/
1613 /* On S/390, structures of size 1, */
1614 /* 2, 4, and 8 bytes are passed in */
1615 /* (a) register(s). */
1616 /*----------------------------------*/
1617 case 0:
1618 case 1:
1619 case 2:
1620 case 4:
1621 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1622 cinfo->args[nParm].size = size;
1623 cinfo->args[nParm].regtype = RegTypeStructByVal;
1624 nParm++;
1625 sz->local_size += sizeof(long);
1626 break;
1627 case 8:
1628 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1629 cinfo->args[nParm].size = sizeof(long long);
1630 cinfo->args[nParm].regtype = RegTypeStructByVal;
1631 nParm++;
1632 sz->local_size += sizeof(long long);
1633 break;
1634 default:
1635 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1636 nParm++;
1637 }
1638 }
1639 break;
1640 case MONO_TYPE_TYPEDBYREF: {
1641 int size = sizeof (MonoTypedRef);
1642
1643 cinfo->args[nParm].vtsize = 0;
1644 cinfo->args[nParm].size = 0;
1645
1646 switch (size) {
1647 /*----------------------------------*/
1648 /* On S/390, structures of size 1, */
1649 /* 2, 4, and 8 bytes are passed in */
1650 /* (a) register(s). */
1651 /*----------------------------------*/
1652 case 0:
1653 case 1:
1654 case 2:
1655 case 4:
1656 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1657 cinfo->args[nParm].size = size;
1658 cinfo->args[nParm].regtype = RegTypeStructByVal;
1659 nParm++;
1660 sz->local_size += sizeof(long);
1661 break;
1662 case 8:
1663 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1664 cinfo->args[nParm].size = sizeof(long long);
1665 cinfo->args[nParm].regtype = RegTypeStructByVal;
1666 nParm++;
1667 sz->local_size += sizeof(long long);
1668 break;
1669 default:
1670 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1671 nParm++;
1672 }
1673 }
1674 break;
1675 default:
1676 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1677 }
1678 }
1679
1680 /*----------------------------------------------------------*/
1681 /* If we are passing a structure back then if it won't be */
1682 /* in a register(s) then we make room at the end of the */
1683 /* parameters that may have been placed on the stack */
1684 /*----------------------------------------------------------*/
1685 if (cinfo->struct_ret) {
1686 cinfo->ret.offset = sz->stack_size;
1687 switch (cinfo->ret.size) {
1688 case 0:
1689 case 1:
1690 case 2:
1691 case 4:
1692 case 8:
1693 break;
1694 default:
1695 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1696 }
1697 }
1698
1699 /*----------------------------------------------------------*/
1700 /* Handle the case where there are no implicit arguments */
1701 /*----------------------------------------------------------*/
1702 if ((sig->call_convention == MONO_CALL_VARARG) &&
1703 (sig->param_count == sig->sentinelpos)) {
1704 gr = S390_LAST_ARG_REG + 1;
1705 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1706 }
1707
1708 cinfo->lastgr = gr;
1709 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1710 sz->offset;
1711 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1712
1713 return (cinfo);
1714 }
1715
1716 /*========================= End of Function ========================*/
1717
1718 /*------------------------------------------------------------------*/
1719 /* */
1720 /* Name - mono_arch_allocate_vars */
1721 /* */
1722 /* Function - Set var information according to the calling */
1723 /* convention for S/390. The local var stuff should */
1724 /* most likely be split in another method. */
1725 /* */
1726 /* Parameter - @m - Compile unit. */
1727 /* */
1728 /*------------------------------------------------------------------*/
1729
1730 void
1731 mono_arch_allocate_vars (MonoCompile *cfg)
1732 {
1733 MonoMethodSignature *sig;
1734 MonoMethodHeader *header;
1735 MonoInst *inst;
1736 CallInfo *cinfo;
1737 int iParm, iVar, offset, size, align, curinst;
1738 int frame_reg = STK_BASE;
1739 int sArg, eArg;
1740
1741 header = cfg->header;
1742
1743 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1744
1745 sig = mono_method_signature (cfg->method);
1746
1747 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1748
1749 /*---------------------------------------------------------*/
1750 /* We use the frame register also for any method that has */
1751 /* filter clauses. This way, when the handlers are called, */
1752 /* the code will reference local variables using the frame */
1753 /* reg instead of the stack pointer: if we had to restore */
1754 /* the stack pointer, we'd corrupt the method frames that */
1755 /* are already on the stack (since filters get called */
1756 /* before stack unwinding happens) when the filter code */
1757 /* would call any method. */
1758 /*---------------------------------------------------------*/
1759 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1760 frame_reg = s390_r11;
1761
1762 cfg->frame_reg = frame_reg;
1763
1764 cfg->arch.bkchain_reg = -1;
1765
1766 if (frame_reg != STK_BASE)
1767 cfg->used_int_regs |= 1 << frame_reg;
1768
1769 sig = mono_method_signature (cfg->method);
1770
1771 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1772
1773 if (!cinfo->struct_ret) {
1774 switch (mono_type_get_underlying_type (sig->ret)->type) {
1775 case MONO_TYPE_VOID:
1776 break;
1777 default:
1778 cfg->ret->opcode = OP_REGVAR;
1779 cfg->ret->dreg = s390_r2;
1780 break;
1781 }
1782 }
1783
1784 /*--------------------------------------------------------------*/
1785 /* local vars are at a positive offset from the stack pointer */
1786 /* also note that if the function uses alloca, we use s390_r11 */
1787 /* to point at the local variables. */
1788 /* add parameter area size for called functions */
1789 /*--------------------------------------------------------------*/
1790 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1791 cfg->sig_cookie = 0;
1792
1793 if (cinfo->struct_ret) {
1794 inst = cfg->vret_addr;
1795 offset = S390_ALIGN(offset, sizeof(gpointer));
1796 inst->inst_offset = offset;
1797 inst->opcode = OP_REGOFFSET;
1798 inst->inst_basereg = frame_reg;
1799 offset += sizeof(gpointer);
1800 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1801 printf ("vret_addr =");
1802 mono_print_ins (cfg->vret_addr);
1803 }
1804 }
1805
1806 if (sig->hasthis) {
1807 inst = cfg->args [0];
1808 if (inst->opcode != OP_REGVAR) {
1809 inst->opcode = OP_REGOFFSET;
1810 inst->inst_basereg = frame_reg;
1811 offset = S390_ALIGN(offset, sizeof(gpointer));
1812 inst->inst_offset = offset;
1813 offset += sizeof (gpointer);
1814 }
1815 curinst = sArg = 1;
1816 } else {
1817 curinst = sArg = 0;
1818 }
1819
1820 eArg = sig->param_count + sArg;
1821
1822 if (sig->call_convention == MONO_CALL_VARARG)
1823 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1824
1825 for (iParm = sArg; iParm < eArg; ++iParm) {
1826 inst = cfg->args [curinst];
1827 if (inst->opcode != OP_REGVAR) {
1828 switch (cinfo->args[iParm].regtype) {
1829 case RegTypeStructByAddr : {
1830 MonoInst *indir;
1831
1832 size = sizeof (gpointer);
1833
1834 if (cinfo->args [iParm].reg == STK_BASE) {
1835 cfg->arch.bkchain_reg = s390_r12;
1836 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1837
1838 inst->opcode = OP_REGOFFSET;
1839 inst->inst_basereg = cfg->arch.bkchain_reg;
1840 inst->inst_offset = cinfo->args [iParm].offset;
1841 } else {
1842 inst->opcode = OP_REGOFFSET;
1843 inst->inst_basereg = frame_reg;
1844 inst->inst_offset = S390_ALIGN(offset, sizeof (gpointer));
1845 }
1846
1847 /* Add a level of indirection */
1848 MONO_INST_NEW (cfg, indir, 0);
1849 *indir = *inst;
1850 inst->opcode = OP_VTARG_ADDR;
1851 inst->inst_left = indir;
1852 }
1853 break;
1854 case RegTypeStructByVal :
1855 size = cinfo->args[iParm].size;
1856 offset = S390_ALIGN(offset, size);
1857 inst->opcode = OP_REGOFFSET;
1858 inst->inst_basereg = frame_reg;
1859 inst->inst_offset = S390_ALIGN (offset, size);
1860 break;
1861 default :
1862 if (cinfo->args [iParm].reg == STK_BASE) {
1863 /*
1864 * These arguments are in the previous frame, so we can't
1865 * compute their offset from the current frame pointer right
1866 * now, since cfg->stack_offset is not yet known, so dedicate a
1867 * register holding the previous frame pointer.
1868 */
1869 cfg->arch.bkchain_reg = s390_r12;
1870 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1871
1872 inst->opcode = OP_REGOFFSET;
1873 inst->inst_basereg = cfg->arch.bkchain_reg;
1874 size = (cinfo->args[iParm].size < 4
1875 ? 4 - cinfo->args[iParm].size
1876 : 0);
1877 inst->inst_offset = cinfo->args [iParm].offset + size;
1878 size = sizeof (long);
1879 } else {
1880 inst->opcode = OP_REGOFFSET;
1881 inst->inst_basereg = frame_reg;
1882 size = (cinfo->args[iParm].size < 8
1883 ? sizeof(long)
1884 : sizeof(long long));
1885 offset = S390_ALIGN(offset, size);
1886 inst->inst_offset = offset;
1887 }
1888 }
1889 if ((sig->call_convention == MONO_CALL_VARARG) &&
1890 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1891 (iParm < sig->sentinelpos))
1892 cfg->sig_cookie += size;
1893
1894 offset += size;
1895 }
1896 curinst++;
1897 }
1898
1899 curinst = cfg->locals_start;
1900 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1901 inst = cfg->varinfo [iVar];
1902 if ((inst->flags & MONO_INST_IS_DEAD) ||
1903 (inst->opcode == OP_REGVAR))
1904 continue;
1905
1906 /*--------------------------------------------------*/
1907 /* inst->backend.is_pinvoke indicates native sized value types, */
1908 /* this is used by the pinvoke wrappers when they */
1909 /* call functions returning structure */
1910 /*--------------------------------------------------*/
1911 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1912 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1913 else
1914 size = mono_type_size (inst->inst_vtype, &align);
1915
1916 offset = S390_ALIGN(offset, align);
1917 inst->inst_offset = offset;
1918 inst->opcode = OP_REGOFFSET;
1919 inst->inst_basereg = frame_reg;
1920 offset += size;
1921 DEBUG (g_print("allocating local %d to %ld\n", iVar, inst->inst_offset));
1922 }
1923
1924 /*------------------------------------------------------*/
1925 /* Allow space for the trace method stack area if needed*/
1926 /*------------------------------------------------------*/
1927 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method)) {
1928 offset += S390_TRACE_STACK_SIZE;
1929 }
1930
1931 /*------------------------------------------------------*/
1932 /* Reserve space to save LMF and caller saved registers */
1933 /*------------------------------------------------------*/
1934 if (cfg->method->save_lmf)
1935 offset += sizeof (MonoLMF);
1936
1937 /*------------------------------------------------------*/
1938 /* align the offset */
1939 /*------------------------------------------------------*/
1940 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1941
1942 /* Fix up offsets for arguments whose value is in the parent frame */
1943 for (iParm = sArg; iParm < eArg; ++iParm) {
1944 inst = cfg->args [iParm];
1945
1946 if (inst->opcode == OP_S390_STKARG) {
1947 inst->opcode = OP_REGOFFSET;
1948 inst->inst_offset += cfg->stack_offset;
1949 }
1950 }
1951 }
1952
1953 /*========================= End of Function ========================*/
1954
1955 /*------------------------------------------------------------------*/
1956 /* */
1957 /* Name - mono_arch_create_vars */
1958 /* */
1959 /*------------------------------------------------------------------*/
1960
1961 void
1962 mono_arch_create_vars (MonoCompile *cfg)
1963 {
1964 MonoMethodSignature *sig;
1965 CallInfo *cinfo;
1966
1967 sig = mono_method_signature (cfg->method);
1968
1969 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1970
1971 if (cinfo->struct_ret) {
1972 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
1973 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1974 printf ("vret_addr = ");
1975 mono_print_ins (cfg->vret_addr);
1976 }
1977 }
1978 }
1979
1980 /*========================= End of Function ========================*/
1981
1982 static void
1983 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
1984 {
1985 MonoInst *ins;
1986
1987 switch (storage) {
1988 case RegTypeGeneral:
1989 MONO_INST_NEW (cfg, ins, OP_MOVE);
1990 ins->dreg = mono_alloc_ireg (cfg);
1991 ins->sreg1 = tree->dreg;
1992 MONO_ADD_INS (cfg->cbb, ins);
1993 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
1994 break;
1995 case RegTypeFP:
1996 MONO_INST_NEW (cfg, ins, OP_FMOVE);
1997 ins->dreg = mono_alloc_freg (cfg);
1998 ins->sreg1 = tree->dreg;
1999 MONO_ADD_INS (cfg->cbb, ins);
2000 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2001 break;
2002 case RegTypeFPR4:
2003 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
2004 ins->dreg = mono_alloc_freg (cfg);
2005 ins->sreg1 = tree->dreg;
2006 MONO_ADD_INS (cfg->cbb, ins);
2007 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2008 break;
2009 default:
2010 g_assert_not_reached ();
2011 }
2012 }
2013
2014 static void
2015 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2016 {
2017 MonoMethodSignature *tmpSig;
2018 MonoInst *sig_arg;
2019
2020 cfg->disable_aot = TRUE;
2021
2022 /*----------------------------------------------------------*/
2023 /* mono_ArgIterator_Setup assumes the signature cookie is */
2024 /* passed first and all the arguments which were before it */
2025 /* passed on the stack after the signature. So compensate */
2026 /* by passing a different signature. */
2027 /*----------------------------------------------------------*/
2028 tmpSig = mono_metadata_signature_dup (call->signature);
2029 tmpSig->param_count -= call->signature->sentinelpos;
2030 tmpSig->sentinelpos = 0;
2031 if (tmpSig->param_count > 0)
2032 memcpy (tmpSig->params,
2033 call->signature->params + call->signature->sentinelpos,
2034 tmpSig->param_count * sizeof(MonoType *));
2035
2036 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2037 sig_arg->dreg = mono_alloc_ireg (cfg);
2038 sig_arg->inst_p0 = tmpSig;
2039 MONO_ADD_INS (cfg->cbb, sig_arg);
2040
2041 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2042 cinfo->sigCookie.offset, sig_arg->dreg);
2043 }
2044
2045 /*------------------------------------------------------------------*/
2046 /* */
2047 /* Name - mono_arch_emit_call */
2048 /* */
2049 /*------------------------------------------------------------------*/
2050
2051 void
2052 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2053 {
2054 MonoInst *in;
2055 MonoMethodSignature *sig;
2056 MonoInst *ins;
2057 int i, n, lParamArea;
2058 CallInfo *cinfo;
2059 ArgInfo *ainfo = NULL;
2060 int stackSize;
2061
2062 sig = call->signature;
2063 n = sig->param_count + sig->hasthis;
2064 DEBUG (g_print ("Call requires: %d parameters\n",n));
2065
2066 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2067
2068 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2069 call->stack_usage = MAX(stackSize, call->stack_usage);
2070 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2071 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2072 cfg->flags |= MONO_CFG_HAS_CALLS;
2073
2074 if (cinfo->struct_ret) {
2075 MONO_INST_NEW (cfg, ins, OP_MOVE);
2076 ins->sreg1 = call->vret_var->dreg;
2077 ins->dreg = mono_alloc_preg (cfg);
2078 MONO_ADD_INS (cfg->cbb, ins);
2079 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2080 }
2081
2082 for (i = 0; i < n; ++i) {
2083 ainfo = cinfo->args + i;
2084 MonoType *t;
2085
2086 if (i >= sig->hasthis)
2087 t = sig->params [i - sig->hasthis];
2088 else
2089 t = &mono_defaults.int_class->byval_arg;
2090 t = mono_type_get_underlying_type (t);
2091
2092 in = call->args [i];
2093
2094 if ((sig->call_convention == MONO_CALL_VARARG) &&
2095 (i == sig->sentinelpos)) {
2096 emit_sig_cookie (cfg, call, cinfo);
2097 }
2098
2099 switch (ainfo->regtype) {
2100 case RegTypeGeneral:
2101 if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2102 MONO_INST_NEW (cfg, ins, OP_MOVE);
2103 ins->dreg = mono_alloc_ireg (cfg);
2104 ins->sreg1 = in->dreg + 2;
2105 MONO_ADD_INS (cfg->cbb, ins);
2106 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
2107 MONO_INST_NEW (cfg, ins, OP_MOVE);
2108 ins->dreg = mono_alloc_ireg (cfg);
2109 ins->sreg1 = in->dreg + 1;
2110 MONO_ADD_INS (cfg->cbb, ins);
2111 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg + 1, FALSE);
2112 } else {
2113 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2114 }
2115 break;
2116 case RegTypeFP:
2117 if (MONO_TYPE_ISSTRUCT (t)) {
2118 /* Valuetype passed in one fp register */
2119 ainfo->regtype = RegTypeStructByValInFP;
2120 /* Fall through */
2121 } else {
2122 if (ainfo->size == 4)
2123 ainfo->regtype = RegTypeFPR4;
2124 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2125 break;
2126 }
2127 case RegTypeStructByVal:
2128 case RegTypeStructByAddr: {
2129 guint32 align;
2130 guint32 size;
2131
2132 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2133 size = sizeof (MonoTypedRef);
2134 align = sizeof (gpointer);
2135 }
2136 else
2137 if (sig->pinvoke)
2138 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2139 else {
2140 /*
2141 * Other backends use mono_type_stack_size (), but that
2142 * aligns the size to 8, which is larger than the size of
2143 * the source, leading to reads of invalid memory if the
2144 * source is at the end of address space.
2145 */
2146 size = mono_class_value_size (in->klass, &align);
2147 }
2148
2149 g_assert (in->klass);
2150
2151 ainfo->offparm += cinfo->sz.offStruct;
2152
2153 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2154 ins->sreg1 = in->dreg;
2155 ins->klass = in->klass;
2156 ins->backend.size = ainfo->size;
2157 ins->inst_p0 = call;
2158 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2159 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2160
2161 MONO_ADD_INS (cfg->cbb, ins);
2162
2163 if (ainfo->regtype == RegTypeStructByAddr) {
2164 /*
2165 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2166 * use the normal OUTARG opcodes to pass the address of the location to
2167 * the callee.
2168 */
2169 int treg = mono_alloc_preg (cfg);
2170 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2171 STK_BASE, ainfo->offparm);
2172 if (ainfo->reg == STK_BASE) {
2173 /* The address is passed on the stack */
2174 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2175 ins->inst_destbasereg = STK_BASE;
2176 ins->inst_offset = ainfo->offset;
2177 ins->sreg1 = treg;
2178 MONO_ADD_INS (cfg->cbb, ins);
2179 } else {
2180 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2181 }
2182 }
2183 break;
2184 }
2185 case RegTypeBase:
2186 if (!t->byref && t->type == MONO_TYPE_R4) {
2187 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2188 STK_BASE, ainfo->offset,
2189 in->dreg);
2190 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2191 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2192 STK_BASE, ainfo->offset,
2193 in->dreg);
2194 } else if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2195 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2196 ins->inst_destbasereg = STK_BASE;
2197 ins->inst_offset = ainfo->offset + MINI_LS_WORD_OFFSET;
2198 ins->sreg1 = in->dreg + 1;
2199 MONO_ADD_INS (cfg->cbb, ins);
2200
2201 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2202 ins->inst_destbasereg = STK_BASE;
2203 ins->inst_offset = ainfo->offset + MINI_MS_WORD_OFFSET;
2204 ins->sreg1 = in->dreg + 2;
2205 MONO_ADD_INS (cfg->cbb, ins);
2206 } else {
2207 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2208 ins->inst_destbasereg = STK_BASE;
2209 ins->inst_offset = ainfo->offset;
2210 ins->sreg1 = in->dreg;
2211 MONO_ADD_INS (cfg->cbb, ins);
2212 }
2213 break;
2214 default:
2215 g_assert_not_reached ();
2216 break;
2217 }
2218 }
2219
2220 /*
2221 * Handle the case where there are no implicit arguments
2222 */
2223 if ((sig->call_convention == MONO_CALL_VARARG) &&
2224 (i == sig->sentinelpos)) {
2225 emit_sig_cookie (cfg, call, cinfo);
2226 }
2227 }
2228
2229 /*========================= End of Function ========================*/
2230
2231 /*------------------------------------------------------------------*/
2232 /* */
2233 /* Name - mono_arch_emit_outarg_vt */
2234 /* */
2235 /*------------------------------------------------------------------*/
2236
2237 void
2238 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2239 {
2240 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2241 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2242 int size = ins->backend.size;
2243
2244 if (ainfo->regtype == RegTypeStructByVal) {
2245 /*
2246 arg->ins.sreg1 = ainfo->reg;
2247 arg->ins.opcode = OP_OUTARG_VT;
2248 arg->size = ainfo->size;
2249 arg->offset = ainfo->offset;
2250 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2251 */
2252 if (ainfo->reg != STK_BASE) {
2253 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2254 } else {
2255 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2256 src->dreg, 0);
2257 }
2258 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2259 int dreg = mono_alloc_freg (cfg);
2260
2261 if (ainfo->size == 4) {
2262 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2263 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2264 } else {
2265 g_assert (ainfo->size == 8);
2266
2267 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2268 }
2269
2270 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2271 } else {
2272 MONO_EMIT_NEW_MOVE (cfg, STK_BASE, ainfo->offparm,
2273 src->dreg, 0, size);
2274 }
2275 }
2276
2277 /*------------------------------------------------------------------*/
2278 /* */
2279 /* Name - mono_arch_emit_setret */
2280 /* */
2281 /*------------------------------------------------------------------*/
2282
2283 void
2284 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2285 {
2286 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2287
2288 if (!ret->byref) {
2289 if (ret->type == MONO_TYPE_R4) {
2290 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2291 return;
2292 } else if (ret->type == MONO_TYPE_R8) {
2293 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2294 return;
2295 } else if (ret->type == MONO_TYPE_I8 || ret->type == MONO_TYPE_U8) {
2296 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r3, val->dreg + 1);
2297 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r2, val->dreg + 2);
2298 return;
2299 }
2300 }
2301
2302 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2303 }
2304
2305 /*========================= End of Function ========================*/
2306
2307 /*------------------------------------------------------------------*/
2308 /* */
2309 /* Name - mono_arch_instrument_mem_needs */
2310 /* */
2311 /* Function - Allow tracing to work with this interface (with */
2312 /* an optional argument). */
2313 /* */
2314 /*------------------------------------------------------------------*/
2315
2316 void
2317 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2318 {
2319 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2320 *stack = 0;
2321 /* split prolog-epilog requirements? */
2322 *code = 50; /* max bytes needed: check this number */
2323 }
2324
2325 /*========================= End of Function ========================*/
2326
2327 /*------------------------------------------------------------------*/
2328 /* */
2329 /* Name - mono_arch_instrument_prolog */
2330 /* */
2331 /* Function - Create an "instrumented" prolog. */
2332 /* */
2333 /*------------------------------------------------------------------*/
2334
2335 void*
2336 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2337 gboolean enable_arguments)
2338 {
2339 guchar *code = p;
2340 int parmOffset,
2341 fpOffset,
2342 baseReg;
2343
2344 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2345 if (cfg->method->save_lmf)
2346 parmOffset -= sizeof(MonoLMF);
2347 fpOffset = parmOffset + (5*sizeof(gint32));
2348 if (fpOffset > 4096) {
2349 s390_lr (code, s390_r12, STK_BASE);
2350 baseReg = s390_r12;
2351 while (fpOffset > 4096) {
2352 s390_ahi (code, baseReg, 4096);
2353 fpOffset -= 4096;
2354 parmOffset -= 4096;
2355 }
2356 } else {
2357 baseReg = STK_BASE;
2358 }
2359
2360 s390_stm (code, s390_r2, s390_r6, baseReg, parmOffset);
2361 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2362 s390_std (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2363 s390_std (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2364 s390_basr (code, s390_r13, 0);
2365 s390_j (code, 6);
2366 s390_word (code, cfg->method);
2367 s390_word (code, func);
2368 s390_l (code, s390_r2, 0, s390_r13, 4);
2369 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2370 s390_lr (code, s390_r4, STK_BASE);
2371 s390_ahi (code, s390_r4, cfg->stack_usage);
2372 s390_l (code, s390_r1, 0, s390_r13, 8);
2373 s390_basr (code, s390_r14, s390_r1);
2374 s390_ld (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2375 s390_ld (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2376 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2377 s390_lm (code, s390_r2, s390_r6, baseReg, parmOffset);
2378
2379 return code;
2380 }
2381
2382 /*========================= End of Function ========================*/
2383
2384 /*------------------------------------------------------------------*/
2385 /* */
2386 /* Name - mono_arch_instrument_epilog */
2387 /* */
2388 /* Function - Create an epilog that will handle the returned */
2389 /* values used in instrumentation. */
2390 /* */
2391 /*------------------------------------------------------------------*/
2392
2393 void*
2394 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2395 {
2396 guchar *code = p;
2397 int save_mode = SAVE_NONE,
2398 saveOffset;
2399 MonoMethod *method = cfg->method;
2400 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2401
2402 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2403 if (method->save_lmf)
2404 saveOffset -= sizeof(MonoLMF);
2405
2406 handle_enum:
2407 switch (rtype) {
2408 case MONO_TYPE_VOID:
2409 /* special case string .ctor icall */
2410 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2411 save_mode = SAVE_ONE;
2412 else
2413 save_mode = SAVE_NONE;
2414 break;
2415 case MONO_TYPE_I8:
2416 case MONO_TYPE_U8:
2417 save_mode = SAVE_TWO;
2418 break;
2419 case MONO_TYPE_R4:
2420 save_mode = SAVE_R4;
2421 break;
2422 case MONO_TYPE_R8:
2423 save_mode = SAVE_R8;
2424 break;
2425 case MONO_TYPE_VALUETYPE:
2426 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2427 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2428 goto handle_enum;
2429 }
2430 save_mode = SAVE_STRUCT;
2431 break;
2432 default:
2433 save_mode = SAVE_ONE;
2434 break;
2435 }
2436
2437 switch (save_mode) {
2438 case SAVE_TWO:
2439 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2440 if (enable_arguments) {
2441 s390_lr (code, s390_r4, s390_r3);
2442 s390_lr (code, s390_r3, s390_r2);
2443 }
2444 break;
2445 case SAVE_ONE:
2446 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2447 if (enable_arguments) {
2448 s390_lr (code, s390_r3, s390_r2);
2449 }
2450 break;
2451 case SAVE_R4:
2452 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2453 if (enable_arguments) {
2454 s390_ldebr (code, s390_f0, s390_f0);
2455 }
2456 break;
2457 case SAVE_R8:
2458 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2459 break;
2460 case SAVE_STRUCT:
2461 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2462 if (enable_arguments) {
2463 s390_l (code, s390_r3, 0, cfg->frame_reg,
2464 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2465 }
2466 break;
2467 case SAVE_NONE:
2468 default:
2469 break;
2470 }
2471
2472 s390_basr (code, s390_r13, 0);
2473 s390_j (code, 6);
2474 s390_word (code, cfg->method);
2475 s390_word (code, func);
2476 s390_l (code, s390_r2, 0, s390_r13, 4);
2477 s390_l (code, s390_r1, 0, s390_r13, 8);
2478 s390_basr (code, s390_r14, s390_r1);
2479
2480 switch (save_mode) {
2481 case SAVE_TWO:
2482 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2483 break;
2484 case SAVE_ONE:
2485 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2486 break;
2487 case SAVE_R4:
2488 case SAVE_R8:
2489 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2490 break;
2491 case SAVE_STRUCT:
2492 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2493 break;
2494 case SAVE_NONE:
2495 default:
2496 break;
2497 }
2498
2499 return code;
2500 }
2501
2502 /*========================= End of Function ========================*/
2503
2504 void
2505 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2506 {
2507 }
2508
2509 /*------------------------------------------------------------------*/
2510 /* */
2511 /* Name - mono_arch_peephole_pass */
2512 /* */
2513 /* Function - Form a peephole pass at the code looking for */
2514 /* simple optimizations. */
2515 /* */
2516 /*------------------------------------------------------------------*/
2517
2518 void
2519 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2520 {
2521 MonoInst *ins, *n;
2522
2523 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2524 mono_peephole_ins (bb, ins);
2525 }
2526 }
2527
2528 /*========================= End of Function ========================*/
2529
2530 void
2531 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2532 {
2533 MonoInst *ins, *next;
2534
2535 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2536 switch (ins->opcode) {
2537 case OP_DIV_IMM:
2538 case OP_REM_IMM:
2539 case OP_IDIV_IMM:
2540 case OP_IREM_IMM:
2541 case OP_IDIV_UN_IMM:
2542 case OP_IREM_UN_IMM:
2543 case OP_LOCALLOC_IMM:
2544 mono_decompose_op_imm (cfg, bb, ins);
2545 break;
2546 default:
2547 break;
2548 }
2549 }
2550
2551 bb->max_vreg = cfg->next_vreg;
2552 }
2553
2554 /*========================= End of Function ========================*/
2555
2556 /*------------------------------------------------------------------*/
2557 /* */
2558 /* Name - emit_float_to_int */
2559 /* */
2560 /* Function - Create instructions which will convert a floating */
2561 /* point value to integer. */
2562 /* */
2563 /*------------------------------------------------------------------*/
2564
2565 static guchar*
2566 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2567 {
2568 /* sreg is a float, dreg is an integer reg. */
2569 if (is_signed) {
2570 s390_cfdbr (code, dreg, 5, sreg);
2571 switch (size) {
2572 case 1:
2573 s390_lhi (code, s390_r0, 0);
2574 s390_lhi (code, s390_r13, 0xff);
2575 s390_ltr (code, dreg, dreg);
2576 s390_jnl (code, 4);
2577 s390_lhi (code, s390_r0, 0x80);
2578 s390_nr (code, dreg, s390_r13);
2579 s390_or (code, dreg, s390_r0);
2580 break;
2581 }
2582 } else {
2583 short *o[1];
2584 s390_basr (code, s390_r13, 0);
2585 s390_j (code, 10);
2586 s390_llong (code, 0x41e0000000000000LL);
2587 s390_llong (code, 0x41f0000000000000LL);
2588 s390_ldr (code, s390_f15, sreg);
2589 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2590 s390_jl (code, 0); CODEPTR(code, o[0]);
2591 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2592 s390_cfdbr (code, dreg, 7, s390_f15);
2593 s390_j (code, 4);
2594 PTRSLOT(code, o[0]);
2595 s390_cfdbr (code, dreg, 5, sreg);
2596 switch (size) {
2597 case 1:
2598 s390_lhi (code, s390_r0, 0xff);
2599 s390_nr (code, dreg, s390_r0);
2600 break;
2601 case 2:
2602 s390_lhi (code, s390_r0, -1);
2603 s390_srl (code, s390_r0, 0, 16);
2604 s390_nr (code, dreg, s390_r0);
2605 break;
2606 }
2607 }
2608 return code;
2609 }
2610
2611 /*========================= End of Function ========================*/
2612
2613 /*------------------------------------------------------------------*/
2614 /* */
2615 /* Name - mono_arch_output_basic_block */
2616 /* */
2617 /* Function - Perform the "real" work of emitting instructions */
2618 /* that will do the work of in the basic block. */
2619 /* */
2620 /*------------------------------------------------------------------*/
2621
2622 void
2623 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2624 {
2625 MonoInst *ins;
2626 MonoCallInst *call;
2627 guint offset;
2628 guint8 *code = cfg->native_code + cfg->code_len;
2629 MonoInst *last_ins = NULL;
2630 guint last_offset = 0;
2631 int max_len, cpos, src2;
2632
2633 /* we don't align basic blocks of loops on s390 */
2634
2635 if (cfg->verbose_level > 2)
2636 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2637
2638 cpos = bb->max_offset;
2639
2640 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2641 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2642 //g_assert (!mono_compile_aot);
2643 //cpos += 6;
2644 //if (bb->cil_code)
2645 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2646 /* this is not thread save, but good enough */
2647 /* fixme: howto handle overflows? */
2648 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2649 }
2650
2651 MONO_BB_FOR_EACH_INS (bb, ins) {
2652 offset = code - cfg->native_code;
2653
2654 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2655
2656 if (offset > (cfg->code_size - max_len - 16)) {
2657 cfg->code_size *= 2;
2658 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2659 code = cfg->native_code + offset;
2660 }
2661
2662 mono_debug_record_line_number (cfg, ins, offset);
2663
2664 switch (ins->opcode) {
2665 case OP_STOREI1_MEMBASE_IMM: {
2666 s390_lhi (code, s390_r0, ins->inst_imm);
2667 if (s390_is_uimm12(ins->inst_offset))
2668 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2669 else {
2670 s390_basr (code, s390_r13, 0);
2671 s390_j (code, 4);
2672 s390_word (code, ins->inst_offset);
2673 s390_l (code, s390_r13, 0, s390_r13, 4);
2674 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2675 }
2676 }
2677 break;
2678 case OP_STOREI2_MEMBASE_IMM: {
2679 s390_lhi (code, s390_r0, ins->inst_imm);
2680 if (s390_is_uimm12(ins->inst_offset)) {
2681 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2682 } else {
2683 s390_basr (code, s390_r13, 0);
2684 s390_j (code, 4);
2685 s390_word (code, ins->inst_offset);
2686 s390_l (code, s390_r13, 0, s390_r13, 4);
2687 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2688 }
2689 }
2690 break;
2691 case OP_STORE_MEMBASE_IMM:
2692 case OP_STOREI4_MEMBASE_IMM: {
2693 if (s390_is_imm16(ins->inst_imm)) {
2694 s390_lhi (code, s390_r0, ins->inst_imm);
2695 } else {
2696 s390_basr (code, s390_r13, 0);
2697 s390_j (code, 4);
2698 s390_word (code, ins->inst_imm);
2699 s390_l (code, s390_r0, 0, s390_r13, 4);
2700 }
2701 if (s390_is_uimm12(ins->inst_offset)) {
2702 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2703 } else {
2704 s390_basr (code, s390_r13, 0);
2705 s390_j (code, 4);
2706 s390_word (code, ins->inst_offset);
2707 s390_l (code, s390_r13, 0, s390_r13, 4);
2708 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2709 }
2710 }
2711 break;
2712 case OP_STOREI1_MEMBASE_REG: {
2713 if (s390_is_uimm12(ins->inst_offset)) {
2714 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2715 } else {
2716 s390_basr (code, s390_r13, 0);
2717 s390_j (code, 4);
2718 s390_word (code, ins->inst_offset);
2719 s390_l (code, s390_r13, 0, s390_r13, 4);
2720 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2721 }
2722 }
2723 break;
2724 case OP_STOREI2_MEMBASE_REG: {
2725 if (s390_is_uimm12(ins->inst_offset)) {
2726 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2727 } else {
2728 s390_basr (code, s390_r13, 0);
2729 s390_j (code, 4);
2730 s390_word (code, ins->inst_offset);
2731 s390_l (code, s390_r13, 0, s390_r13, 4);
2732 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2733 }
2734 }
2735 break;
2736 case OP_STORE_MEMBASE_REG:
2737 case OP_STOREI4_MEMBASE_REG: {
2738 if (s390_is_uimm12(ins->inst_offset)) {
2739 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2740 } else {
2741 s390_basr (code, s390_r13, 0);
2742 s390_j (code, 4);
2743 s390_word (code, ins->inst_offset);
2744 s390_l (code, s390_r13, 0, s390_r13, 4);
2745 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2746 }
2747 }
2748 break;
2749 case OP_LOADU4_MEM:
2750 g_assert_not_reached ();
2751 break;
2752 case OP_LOAD_MEMBASE:
2753 case OP_LOADI4_MEMBASE:
2754 case OP_LOADU4_MEMBASE: {
2755 if (s390_is_uimm12(ins->inst_offset))
2756 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2757 else {
2758 if (s390_is_imm16(ins->inst_offset)) {
2759 s390_lhi (code, s390_r13, ins->inst_offset);
2760 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2761 } else {
2762 s390_basr (code, s390_r13, 0);
2763 s390_j (code, 4);
2764 s390_word (code, ins->inst_offset);
2765 s390_l (code, s390_r13, 0, s390_r13, 4);
2766 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2767 }
2768 }
2769 }
2770 break;
2771 case OP_LOADU1_MEMBASE: {
2772 s390_lhi (code, s390_r0, 0);
2773 if (s390_is_uimm12(ins->inst_offset))
2774 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2775 else {
2776 s390_basr (code, s390_r13, 0);
2777 s390_j (code, 4);
2778 s390_word (code, ins->inst_offset);
2779 s390_l (code, s390_r13, 0, s390_r13, 4);
2780 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2781 }
2782 s390_lr (code, ins->dreg, s390_r0);
2783 }
2784 break;
2785 case OP_LOADI1_MEMBASE: {
2786 s390_lhi (code, s390_r0, 0);
2787 if (s390_is_uimm12(ins->inst_offset))
2788 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2789 else {
2790 s390_basr (code, s390_r13, 0);
2791 s390_j (code, 4);
2792 s390_word (code, ins->inst_offset);
2793 s390_l (code, s390_r13, 0, s390_r13, 4);
2794 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2795 }
2796 s390_lhi (code, s390_r13, 0x80);
2797 s390_nr (code, s390_r13, s390_r0);
2798 s390_jz (code, 5);
2799 s390_lhi (code, s390_r13, 0xff00);
2800 s390_or (code, s390_r0, s390_r13);
2801 s390_lr (code, ins->dreg, s390_r0);
2802 }
2803 break;
2804 case OP_LOADU2_MEMBASE: {
2805 s390_lhi (code, s390_r0, 0);
2806 if (s390_is_uimm12(ins->inst_offset))
2807 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
2808 else {
2809 s390_basr (code, s390_r13, 0);
2810 s390_j (code, 4);
2811 s390_word (code, ins->inst_offset);
2812 s390_l (code, s390_r13, 0, s390_r13, 4);
2813 s390_ar (code, s390_r13, ins->inst_basereg);
2814 s390_icm (code, s390_r0, 3, s390_r13, 0);
2815 }
2816 s390_lr (code, ins->dreg, s390_r0);
2817 }
2818 break;
2819 case OP_LOADI2_MEMBASE: {
2820 s390_lhi (code, s390_r0, 0);
2821 if (s390_is_uimm12(ins->inst_offset))
2822 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2823 else {
2824 s390_basr (code, s390_r13, 0);
2825 s390_j (code, 4);
2826 s390_word (code, ins->inst_offset);
2827 s390_l (code, s390_r13, 0, s390_r13, 4);
2828 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2829 }
2830 s390_lr (code, ins->dreg, s390_r0);
2831 }
2832 break;
2833
2834 case OP_ICONV_TO_I1: {
2835 if (ins->dreg != ins->sreg1)
2836 s390_lr (code, ins->dreg, ins->sreg1);
2837 s390_sll (code, ins->dreg, 0, 24);
2838 s390_sra (code, ins->dreg, 0, 24);
2839 }
2840 break;
2841 case OP_ICONV_TO_I2: {
2842 if (ins->dreg != ins->sreg1)
2843 s390_lr (code, ins->dreg, ins->sreg1);
2844 s390_sll (code, ins->dreg, 0, 16);
2845 s390_sra (code, ins->dreg, 0, 16);
2846 }
2847 break;
2848 case OP_ICONV_TO_U1: {
2849 s390_lhi (code, s390_r0, 0xff);
2850 if (ins->dreg != ins->sreg1) {
2851 s390_lr (code, ins->dreg, ins->sreg1);
2852 }
2853 s390_nr (code, ins->dreg, s390_r0);
2854 }
2855 break;
2856 case OP_ICONV_TO_U2: {
2857 s390_lhi (code, s390_r0, -1);
2858 s390_sll (code, s390_r0, 0, 16);
2859 s390_srl (code, s390_r0, 0, 16);
2860 if (ins->dreg != ins->sreg1) {
2861 s390_lr (code, ins->dreg, ins->sreg1);
2862 }
2863 s390_nr (code, ins->dreg, s390_r0);
2864 }
2865 break;
2866 case OP_COMPARE:
2867 case OP_ICOMPARE: {
2868 gboolean un = FALSE;
2869 MonoInst *next = ins->next;
2870
2871 if ((next) &&
2872 (((next->opcode >= OP_IBNE_UN) &&
2873 (next->opcode <= OP_IBLT_UN)) ||
2874 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2875 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2876 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2877 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2878 ((next->opcode == OP_CLT_UN) ||
2879 (next->opcode == OP_CGT_UN)) ||
2880 ((next->opcode == OP_ICLT_UN) ||
2881 (next->opcode == OP_ICGT_UN))))
2882 un = TRUE;
2883
2884 if (un)
2885 s390_clr (code, ins->sreg1, ins->sreg2);
2886 else
2887 s390_cr (code, ins->sreg1, ins->sreg2);
2888 }
2889 break;
2890 case OP_COMPARE_IMM:
2891 case OP_ICOMPARE_IMM: {
2892 gboolean un = FALSE;
2893 MonoInst *next = ins->next;
2894
2895 if ((next) &&
2896 (((next->opcode >= OP_IBNE_UN) &&
2897 (next->opcode <= OP_IBLT_UN)) ||
2898 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2899 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2900 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2901 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2902 ((next->opcode == OP_CLT_UN) ||
2903 (next->opcode == OP_CGT_UN)) ||
2904 ((next->opcode == OP_ICLT_UN) ||
2905 (next->opcode == OP_ICGT_UN))))
2906 un = TRUE;
2907
2908 if (s390_is_imm16 (ins->inst_imm)) {
2909 s390_lhi (code, s390_r0, ins->inst_imm);
2910 if (un)
2911 s390_clr (code, ins->sreg1, s390_r0);
2912 else
2913 s390_cr (code, ins->sreg1, s390_r0);
2914 }
2915 else {
2916 s390_basr (code, s390_r13, 0);
2917 s390_j (code, 4);
2918 s390_word (code, ins->inst_imm);
2919 if (un)
2920 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2921 else
2922 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2923 }
2924 }
2925 break;
2926 case OP_BREAK: {
2927 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_break);
2928 s390_brasl (code, s390_r14, 0);
2929 }
2930 break;
2931 case OP_ADDCC:
2932 case OP_IADDCC: {
2933 CHECK_SRCDST_COM;
2934 s390_alr (code, ins->dreg, src2);
2935 }
2936 break;
2937 case OP_IADD: {
2938 CHECK_SRCDST_COM;
2939 s390_ar (code, ins->dreg, src2);
2940 }
2941 break;
2942 case OP_ADC:
2943 case OP_IADC: {
2944 CHECK_SRCDST_COM;
2945 s390_alcr (code, ins->dreg, src2);
2946 }
2947 break;
2948 case OP_ADD_IMM:
2949 case OP_IADD_IMM: {
2950 if (ins->dreg != ins->sreg1) {
2951 s390_lr (code, ins->dreg, ins->sreg1);
2952 }
2953 if ((ins->next) &&
2954 (ins->next->opcode == OP_ADC_IMM)) {
2955 s390_basr (code, s390_r13, 0);
2956 s390_j (code, 4);
2957 s390_word (code, ins->inst_imm);
2958 s390_a (code, ins->dreg, 0, s390_r13, 4);
2959 } else {
2960 if (s390_is_imm16 (ins->inst_imm)) {
2961 s390_ahi (code, ins->dreg, ins->inst_imm);
2962 } else {
2963 s390_basr (code, s390_r13, 0);
2964 s390_j (code, 4);
2965 s390_word (code, ins->inst_imm);
2966 s390_a (code, ins->dreg, 0, s390_r13, 4);
2967 }
2968 }
2969 }
2970 break;
2971 case OP_ADDCC_IMM: {
2972 if ((ins->next) &&
2973 (ins->next->opcode == OP_ADC_IMM)) {
2974 s390_basr (code, s390_r13, 0);
2975 s390_j (code, 4);
2976 s390_word (code, ins->inst_imm);
2977 if (ins->dreg != ins->sreg1) {
2978 s390_lr (code, ins->dreg, ins->sreg1);
2979 }
2980 s390_al (code, ins->dreg, 0, s390_r13, 4);
2981 } else {
2982 if (s390_is_imm16 (ins->inst_imm)) {
2983 if (ins->dreg != ins->sreg1) {
2984 s390_lr (code, ins->dreg, ins->sreg1);
2985 }
2986 s390_lhi (code, s390_r0, ins->inst_imm);
2987 s390_alcr (code, ins->dreg, s390_r0);
2988 } else {
2989 s390_basr (code, s390_r13, 0);
2990 s390_j (code, 4);
2991 s390_word (code, ins->inst_imm);
2992 if (ins->dreg != ins->sreg1) {
2993 s390_lr (code, ins->dreg, ins->sreg1);
2994 }
2995 s390_al (code, ins->dreg, 0, s390_r13, 4);
2996 }
2997 }
2998 }
2999 break;
3000 case OP_ADC_IMM: {
3001 if (s390_is_imm16 (ins->inst_imm)) {
3002 if (ins->dreg != ins->sreg1) {
3003 s390_lr (code, ins->dreg, ins->sreg1);
3004 }
3005 s390_lhi (code, s390_r0, ins->inst_imm);
3006 s390_alcr (code, ins->dreg, s390_r0);
3007 } else {
3008 s390_basr (code, s390_r13, 0);
3009 s390_j (code, 4);
3010 s390_word (code, ins->inst_imm);
3011 s390_l (code, s390_r13, 0, s390_r13, 4);
3012 s390_alcr (code, ins->dreg, s390_r13);
3013 }
3014 }
3015 break;
3016 case OP_IADD_OVF:
3017 case OP_S390_IADD_OVF: {
3018 CHECK_SRCDST_COM;
3019 s390_ar (code, ins->dreg, src2);
3020 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3021 }
3022 break;
3023 case OP_IADD_OVF_UN:
3024 case OP_S390_IADD_OVF_UN: {
3025 CHECK_SRCDST_COM;
3026 s390_alr (code, ins->dreg, src2);
3027 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3028 }
3029 break;
3030 case OP_LADD:
3031 case OP_S390_LADD: {
3032 s390_alr (code, s390_r0, ins->sreg1);
3033 s390_jnc (code, 4);
3034 s390_ahi (code, s390_r1, 1);
3035 s390_ar (code, s390_r1, ins->sreg2);
3036 s390_lr (code, ins->dreg, s390_r0);
3037 s390_lr (code, ins->dreg+1, s390_r1);
3038 }
3039 break;
3040 case OP_LADD_OVF:
3041 case OP_S390_LADD_OVF: {
3042 short int *o[1];
3043 s390_alr (code, s390_r0, ins->sreg1);
3044 s390_jnc (code, 0); CODEPTR(code, o[0]);
3045 s390_ahi (code, s390_r1, 1);
3046 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3047 PTRSLOT (code, o[0]);
3048 s390_ar (code, s390_r1, ins->sreg2);
3049 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3050 s390_lr (code, ins->dreg, s390_r0);
3051 s390_lr (code, ins->dreg+1, s390_r1);
3052 }
3053 break;
3054 case OP_LADD_OVF_UN:
3055 case OP_S390_LADD_OVF_UN: {
3056 s390_alr (code, s390_r0, ins->sreg1);
3057 s390_alcr (code, s390_r1, ins->sreg2);
3058 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3059 s390_lr (code, ins->dreg, s390_r0);
3060 s390_lr (code, ins->dreg+1, s390_r1);
3061 }
3062 break;
3063 case OP_ADD_OVF_CARRY: {
3064 CHECK_SRCDST_COM;
3065 s390_lhi (code, s390_r0, 0);
3066 s390_lr (code, s390_r1, s390_r0);
3067 s390_alcr (code, s390_r0, s390_r1);
3068 s390_ar (code, ins->dreg, src2);
3069 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3070 s390_ar (code, ins->dreg, s390_r0);
3071 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3072 }
3073 break;
3074 case OP_ADD_OVF_UN_CARRY: {
3075 CHECK_SRCDST_COM;
3076 s390_alcr (code, ins->dreg, src2);
3077 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3078 }
3079 break;
3080 case OP_SUBCC:
3081 case OP_ISUBCC: {
3082 CHECK_SRCDST_NCOM;
3083 s390_slr (code, ins->dreg, src2);
3084 }
3085 break;
3086 case OP_ISUB: {
3087 CHECK_SRCDST_NCOM;
3088 s390_sr (code, ins->dreg, src2);
3089 }
3090 break;
3091 case OP_SBB:
3092 case OP_ISBB: {
3093 CHECK_SRCDST_NCOM;
3094 s390_slbr (code, ins->dreg, src2);
3095 }
3096 break;
3097 case OP_SUBCC_IMM: {
3098 if (s390_is_imm16 (-ins->inst_imm)) {
3099 if (ins->dreg != ins->sreg1) {
3100 s390_lr (code, ins->dreg, ins->sreg1);
3101 }
3102 s390_lhi (code, s390_r0, ins->inst_imm);
3103 s390_slr (code, ins->dreg, s390_r0);
3104 } else {
3105 s390_basr (code, s390_r13, 0);
3106 s390_j (code, 4);
3107 s390_word (code, ins->inst_imm);
3108 if (ins->dreg != ins->sreg1) {
3109 s390_lr (code, ins->dreg, ins->sreg1);
3110 }
3111 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3112 }
3113 }
3114 break;
3115 case OP_SUB_IMM:
3116 case OP_ISUB_IMM: {
3117 if (s390_is_imm16 (-ins->inst_imm)) {
3118 if (ins->dreg != ins->sreg1) {
3119 s390_lr (code, ins->dreg, ins->sreg1);
3120 }
3121 s390_ahi (code, ins->dreg, -ins->inst_imm);
3122 } else {
3123 s390_basr (code, s390_r13, 0);
3124 s390_j (code, 4);
3125 s390_word (code, ins->inst_imm);
3126 if (ins->dreg != ins->sreg1) {
3127 s390_lr (code, ins->dreg, ins->sreg1);
3128 }
3129 s390_s (code, ins->dreg, 0, s390_r13, 4);
3130 }
3131 }
3132 break;
3133 case OP_SBB_IMM: {
3134 if (ins->dreg != ins->sreg1) {
3135 s390_lr (code, ins->dreg, ins->sreg1);
3136 }
3137 if (s390_is_imm16 (-ins->inst_imm)) {
3138 s390_lhi (code, s390_r0, ins->inst_imm);
3139 s390_slbr (code, ins->dreg, s390_r0);
3140 } else {
3141 s390_basr (code, s390_r13, 0);
3142 s390_j (code, 4);
3143 s390_word (code, ins->inst_imm);
3144 s390_slb (code, ins->dreg, 0, s390_r13, 4);
3145 }
3146 }
3147 break;
3148 case OP_ISUB_OVF:
3149 case OP_S390_ISUB_OVF: {
3150 CHECK_SRCDST_NCOM;
3151 s390_sr (code, ins->dreg, src2);
3152 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3153 }
3154 break;
3155 case OP_ISUB_OVF_UN:
3156 case OP_S390_ISUB_OVF_UN: {
3157 CHECK_SRCDST_NCOM;
3158 s390_slr (code, ins->dreg, src2);
3159 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3160 }
3161 break;
3162 case OP_LSUB:
3163 case OP_S390_LSUB: {
3164 s390_lr (code, s390_r14, ins->sreg2);
3165 s390_slr (code, s390_r0, ins->sreg1);
3166 s390_jnl (code, 4);
3167 s390_ahi (code, s390_r14, 1);
3168 s390_sr (code, s390_r1, s390_r14);
3169 s390_lr (code, ins->dreg, s390_r0);
3170 s390_lr (code, ins->dreg+1, s390_r1);
3171 }
3172 break;
3173 case OP_LSUB_OVF:
3174 case OP_S390_LSUB_OVF: {
3175 short int *o[1];
3176 s390_lr (code, s390_r14, ins->sreg2);
3177 s390_slr (code, s390_r0, ins->sreg1);
3178 s390_jnl (code, 0); CODEPTR(code, o[0]);
3179 s390_ahi (code, s390_r14, 1);
3180 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3181 PTRSLOT (code, o[0]);
3182 s390_sr (code, s390_r1, s390_r14);
3183 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3184 s390_lr (code, ins->dreg, s390_r0);
3185 s390_lr (code, ins->dreg+1, s390_r1);
3186 }
3187 break;
3188 case OP_LSUB_OVF_UN:
3189 case OP_S390_LSUB_OVF_UN: {
3190 s390_slr (code, s390_r0, ins->sreg1);
3191 s390_slbr (code, s390_r1, ins->sreg2);
3192 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3193 s390_lr (code, ins->dreg, s390_r0);
3194 s390_lr (code, ins->dreg+1, s390_r1);
3195 }
3196 break;
3197 case OP_SUB_OVF_CARRY: {
3198 CHECK_SRCDST_NCOM;
3199 s390_lhi (code, s390_r0, 0);
3200 s390_lr (code, s390_r1, s390_r0);
3201 s390_slbr (code, s390_r0, s390_r1);
3202 s390_sr (code, ins->dreg, src2);
3203 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3204 s390_ar (code, ins->dreg, s390_r0);
3205 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3206 }
3207 break;
3208 case OP_SUB_OVF_UN_CARRY: {
3209 CHECK_SRCDST_NCOM;
3210 s390_slbr (code, ins->dreg, src2);
3211 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3212 }
3213 break;
3214 case OP_IAND: {
3215 if (ins->sreg1 == ins->dreg) {
3216 s390_nr (code, ins->dreg, ins->sreg2);
3217 }
3218 else {
3219 if (ins->sreg2 == ins->dreg) {
3220 s390_nr (code, ins->dreg, ins->sreg1);
3221 }
3222 else {
3223 s390_lr (code, ins->dreg, ins->sreg1);
3224 s390_nr (code, ins->dreg, ins->sreg2);
3225 }
3226 }
3227 }
3228 break;
3229 case OP_AND_IMM:
3230 case OP_IAND_IMM: {
3231 if (s390_is_imm16 (ins->inst_imm)) {
3232 s390_lhi (code, s390_r0, ins->inst_imm);
3233 if (ins->dreg != ins->sreg1) {
3234 s390_lr (code, ins->dreg, ins->sreg1);
3235 }
3236 s390_nr (code, ins->dreg, s390_r0);
3237 } else {
3238 s390_basr (code, s390_r13, 0);
3239 s390_j (code, 4);
3240 s390_word (code, ins->inst_imm);
3241 if (ins->dreg != ins->sreg1) {
3242 s390_lr (code, ins->dreg, ins->sreg1);
3243 }
3244 s390_n (code, ins->dreg, 0, s390_r13, 4);
3245 }
3246 }
3247 break;
3248 case OP_IDIV: {
3249 s390_lr (code, s390_r0, ins->sreg1);
3250 s390_srda (code, s390_r0, 0, 32);
3251 s390_dr (code, s390_r0, ins->sreg2);
3252 s390_lr (code, ins->dreg, s390_r1);
3253 }
3254 break;
3255 case OP_IDIV_UN: {
3256 s390_lr (code, s390_r0, ins->sreg1);
3257 s390_srdl (code, s390_r0, 0, 32);
3258 s390_dlr (code, s390_r0, ins->sreg2);
3259 s390_lr (code, ins->dreg, s390_r1);
3260 }
3261 break;
3262 case OP_IREM: {
3263 s390_lr (code, s390_r0, ins->sreg1);
3264 s390_srda (code, s390_r0, 0, 32);
3265 s390_dr (code, s390_r0, ins->sreg2);
3266 s390_lr (code, ins->dreg, s390_r0);
3267 break;
3268 case OP_IREM_UN:
3269 s390_lr (code, s390_r0, ins->sreg1);
3270 s390_srdl (code, s390_r0, 0, 32);
3271 s390_dlr (code, s390_r0, ins->sreg2);
3272 s390_lr (code, ins->dreg, s390_r0);
3273 }
3274 break;
3275 case OP_IOR: {
3276 if (ins->sreg1 == ins->dreg) {
3277 s390_or (code, ins->dreg, ins->sreg2);
3278 }
3279 else {
3280 if (ins->sreg2 == ins->dreg) {
3281 s390_or (code, ins->dreg, ins->sreg1);
3282 }
3283 else {
3284 s390_lr (code, ins->dreg, ins->sreg1);
3285 s390_or (code, ins->dreg, ins->sreg2);
3286 }
3287 }
3288 }
3289 break;
3290 case OP_OR_IMM:
3291 case OP_IOR_IMM: {
3292 if (s390_is_imm16 (ins->inst_imm)) {
3293 s390_lhi (code, s390_r0, ins->inst_imm);
3294 if (ins->dreg != ins->sreg1) {
3295 s390_lr (code, ins->dreg, ins->sreg1);
3296 }
3297 s390_or (code, ins->dreg, s390_r0);
3298 } else {
3299 s390_basr (code, s390_r13, 0);
3300 s390_j (code, 4);
3301 s390_word (code, ins->inst_imm);
3302 if (ins->dreg != ins->sreg1) {
3303 s390_lr (code, ins->dreg, ins->sreg1);
3304 }
3305 s390_o (code, ins->dreg, 0, s390_r13, 4);
3306 }
3307 }
3308 break;
3309 case OP_IXOR: {
3310 if (ins->sreg1 == ins->dreg) {
3311 s390_xr (code, ins->dreg, ins->sreg2);
3312 }
3313 else {
3314 if (ins->sreg2 == ins->dreg) {
3315 s390_xr (code, ins->dreg, ins->sreg1);
3316 }
3317 else {
3318 s390_lr (code, ins->dreg, ins->sreg1);
3319 s390_xr (code, ins->dreg, ins->sreg2);
3320 }
3321 }
3322 }
3323 break;
3324 case OP_XOR_IMM:
3325 case OP_IXOR_IMM: {
3326 if (s390_is_imm16 (ins->inst_imm)) {
3327 s390_lhi (code, s390_r0, ins->inst_imm);
3328 if (ins->dreg != ins->sreg1) {
3329 s390_lr (code, ins->dreg, ins->sreg1);
3330 }
3331 s390_xr (code, ins->dreg, s390_r0);
3332 } else {
3333 s390_basr (code, s390_r13, 0);
3334 s390_j (code, 4);
3335 s390_word (code, ins->inst_imm);
3336 if (ins->dreg != ins->sreg1) {
3337 s390_lr (code, ins->dreg, ins->sreg1);
3338 }
3339 s390_x (code, ins->dreg, 0, s390_r13, 4);
3340 }
3341 }
3342 break;
3343 case OP_ISHL: {
3344 CHECK_SRCDST_NCOM;
3345 s390_sll (code, ins->dreg, src2, 0);
3346 }
3347 break;
3348 case OP_SHL_IMM:
3349 case OP_ISHL_IMM: {
3350 if (ins->sreg1 != ins->dreg) {
3351 s390_lr (code, ins->dreg, ins->sreg1);
3352 }
3353 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3354 }
3355 break;
3356 case OP_ISHR: {
3357 CHECK_SRCDST_NCOM;
3358 s390_sra (code, ins->dreg, src2, 0);
3359 }
3360 break;
3361 case OP_SHR_IMM:
3362 case OP_ISHR_IMM: {
3363 if (ins->sreg1 != ins->dreg) {
3364 s390_lr (code, ins->dreg, ins->sreg1);
3365 }
3366 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3367 }
3368 break;
3369 case OP_SHR_UN_IMM:
3370 case OP_ISHR_UN_IMM: {
3371 if (ins->sreg1 != ins->dreg) {
3372 s390_lr (code, ins->dreg, ins->sreg1);
3373 }
3374 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3375 }
3376 break;
3377 case OP_ISHR_UN: {
3378 CHECK_SRCDST_NCOM;
3379 s390_srl (code, ins->dreg, src2, 0);
3380 }
3381 break;
3382 case OP_INOT: {
3383 if (ins->sreg1 != ins->dreg) {
3384 s390_lr (code, ins->dreg, ins->sreg1);
3385 }
3386 s390_lhi (code, s390_r0, -1);
3387 s390_xr (code, ins->dreg, s390_r0);
3388 }
3389 break;
3390 case OP_INEG: {
3391 s390_lcr (code, ins->dreg, ins->sreg1);
3392 }
3393 break;
3394 case OP_S390_LNEG: {
3395 /* From gcc code */
3396 g_assert (ins->dreg + 1 != ins->sreg1);
3397 s390_lcr (code, ins->dreg + 1, ins->sreg2);
3398 s390_lcr (code, ins->dreg, ins->sreg1);
3399 s390_je (code, 3);
3400 s390_bctr (code, ins->dreg + 1, 0);
3401 }
3402 break;
3403 case OP_IMUL: {
3404 if (ins->sreg1 == ins->dreg) {
3405 s390_msr (code, ins->dreg, ins->sreg2);
3406 }
3407 else {
3408 if (ins->sreg2 == ins->dreg) {
3409 s390_msr (code, ins->dreg, ins->sreg1);
3410 }
3411 else {
3412 s390_lr (code, ins->dreg, ins->sreg1);
3413 s390_msr (code, ins->dreg, ins->sreg2);
3414 }
3415 }
3416 }
3417 break;
3418 case OP_MUL_IMM:
3419 case OP_IMUL_IMM: {
3420 if (s390_is_imm16 (ins->inst_imm)) {
3421 s390_lhi (code, s390_r13, ins->inst_imm);
3422 } else {
3423 s390_basr (code, s390_r13, 0);
3424 s390_j (code, 4);
3425 s390_word (code, ins->inst_imm);
3426 // if (ins->dreg != ins->sreg1) {
3427 // s390_lr (code, ins->dreg, ins->sreg1);
3428 // }
3429 s390_l (code, s390_r13, 0, s390_r13, 4);
3430 }
3431 if (ins->dreg != ins->sreg1) {
3432 s390_lr (code, ins->dreg, ins->sreg1);
3433 }
3434 s390_msr (code, ins->dreg, s390_r13);
3435 }
3436 break;
3437 case OP_IMUL_OVF: {
3438 short int *o[2];
3439 s390_ltr (code, s390_r1, ins->sreg1);
3440 s390_jz (code, 0); CODEPTR(code, o[0]);
3441 s390_ltr (code, s390_r0, ins->sreg2);
3442 s390_jnz (code, 6);
3443 s390_lhi (code, s390_r1, 0);
3444 s390_j (code, 0); CODEPTR(code, o[1]);
3445 s390_xr (code, s390_r0, s390_r1);
3446 s390_msr (code, s390_r1, ins->sreg2);
3447 s390_xr (code, s390_r0, s390_r1);
3448 s390_srl (code, s390_r0, 0, 31);
3449 s390_ltr (code, s390_r0, s390_r0);
3450 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3451 PTRSLOT (code, o[0]);
3452 PTRSLOT (code, o[1]);
3453 s390_lr (code, ins->dreg, s390_r1);
3454 }
3455 break;
3456 case OP_IMUL_OVF_UN: {
3457 s390_lhi (code, s390_r0, 0);
3458 s390_lr (code, s390_r1, ins->sreg1);
3459 s390_mlr (code, s390_r0, ins->sreg2);
3460 s390_ltr (code, s390_r0, s390_r0);
3461 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3462 s390_lr (code, ins->dreg, s390_r1);
3463 }
3464 break;
3465 case OP_LMUL: {
3466 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3467 s390_srda (code, s390_r0, 0, 32);
3468 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3469 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3470 s390_srl (code, s390_r0, 0, 31);
3471 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3472 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3473 s390_srl (code, s390_r13, 0, 31);
3474 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3475 s390_ar (code, s390_r0, s390_r13);
3476 s390_st (code, s390_r0, 0, ins->dreg, 0);
3477 s390_st (code, s390_r1, 0, ins->dreg, 4);
3478 }
3479 break;
3480 case OP_ICONST: {
3481 if (s390_is_imm16(ins->inst_c0)) {
3482 s390_lhi (code, ins->dreg, ins->inst_c0);
3483 } else {
3484 s390_basr (code, s390_r13, 0);
3485 s390_j (code, 4);
3486 s390_word (code, ins->inst_c0);
3487 s390_l (code, ins->dreg, 0, s390_r13, 4);
3488 }
3489 }
3490 break;
3491 case OP_AOTCONST: {
3492 s390_basr (code, s390_r13, 0);
3493 s390_j (code, 4);
3494 mono_add_patch_info (cfg, code - cfg->native_code,
3495 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3496 s390_word (code, 0);
3497 s390_l (code,ins->dreg, 0, s390_r13, 4);
3498 }
3499 break;
3500 case OP_JUMP_TABLE: {
3501 mono_add_patch_info (cfg, code - cfg->native_code,
3502 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3503 s390_basr (code, s390_r13, 0);
3504 s390_j (code, 4);
3505 s390_word (code, 0);
3506 s390_l (code, ins->dreg, 0, s390_r13, 4);
3507 }
3508 break;
3509 case OP_ICONV_TO_I4:
3510 case OP_ICONV_TO_U4:
3511 case OP_MOVE: {
3512 if (ins->dreg != ins->sreg1) {
3513 s390_lr (code, ins->dreg, ins->sreg1);
3514 }
3515 }
3516 break;
3517 case OP_SETLRET: {
3518 int saved = ins->sreg1;
3519 if (ins->sreg1 == s390_r2) {
3520 s390_lr (code, s390_r0, ins->sreg1);
3521 saved = s390_r0;
3522 }
3523 if (ins->sreg2 != s390_r2)
3524 s390_lr (code, s390_r2, ins->sreg2);
3525 if (saved != s390_r3)
3526 s390_lr (code, s390_r3, saved);
3527 break;
3528 }
3529 case OP_FMOVE: {
3530 if (ins->dreg != ins->sreg1) {
3531 s390_ldr (code, ins->dreg, ins->sreg1);
3532 }
3533 }
3534 break;
3535 case OP_S390_SETF4RET: {
3536 s390_ledbr (code, ins->dreg, ins->sreg1);
3537 }
3538 break;
3539 case OP_TLS_GET: {
3540 if (s390_is_imm16 (ins->inst_offset)) {
3541 s390_lhi (code, s390_r13, ins->inst_offset);
3542 } else {
3543 s390_bras (code, s390_r13, 0);
3544 s390_j (code, 4);
3545 s390_word (code, ins->inst_offset);
3546 s390_l (code, s390_r13, 0, s390_r13, 4);
3547 }
3548 s390_ear (code, s390_r1, 0);
3549 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
3550 }
3551 break;
3552 case OP_FCONV_TO_R4: {
3553 // FIXME:
3554 if (ins->dreg != ins->sreg1) {
3555 s390_ldr (code, ins->dreg, ins->sreg1);
3556 }
3557 /*
3558 NOT_IMPLEMENTED;
3559 if ((ins->next) &&
3560 (ins->next->opcode != OP_FMOVE) &&
3561 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3562 s390_ledbr (code, ins->dreg, ins->sreg1);
3563 */
3564 }
3565 break;
3566 case OP_JMP: {
3567 if (cfg->method->save_lmf)
3568 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3569
3570 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3571 code = emit_load_volatile_registers(code, cfg);
3572 }
3573
3574 code = backUpStackPtr(cfg, code, STK_BASE);
3575 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3576 mono_add_patch_info (cfg, code - cfg->native_code,
3577 MONO_PATCH_INFO_METHOD_JUMP,
3578 ins->inst_p0);
3579 s390_jcl (code, S390_CC_UN, 0);
3580 }
3581 break;
3582 case OP_CHECK_THIS: {
3583 /* ensure ins->sreg1 is not NULL */
3584 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3585 }
3586 break;
3587 case OP_ARGLIST: {
3588 int offset = cfg->sig_cookie + cfg->stack_usage;
3589
3590 if (s390_is_imm16 (offset))
3591 s390_lhi (code, s390_r0, offset);
3592 else {
3593 s390_basr (code, s390_r13, 0);
3594 s390_j (code, 4);
3595 s390_word (code, offset);
3596 s390_l (code, s390_r0, 0, s390_r13, 0);
3597 }
3598 s390_ar (code, s390_r0, cfg->frame_reg);
3599 s390_st (code, s390_r0, 0, ins->sreg1, 0);
3600 }
3601 break;
3602 case OP_FCALL: {
3603 call = (MonoCallInst*)ins;
3604 if (ins->flags & MONO_INST_HAS_METHOD)
3605 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3606 call->method);
3607 else
3608 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3609 call->fptr);
3610 s390_brasl (code, s390_r14, 0);
3611 if (call->signature->ret->type == MONO_TYPE_R4)
3612 s390_ldebr (code, s390_f0, s390_f0);
3613 }
3614 break;
3615 case OP_LCALL:
3616 case OP_VCALL:
3617 case OP_VCALL2:
3618 case OP_VOIDCALL:
3619 case OP_CALL: {
3620 call = (MonoCallInst*)ins;
3621 if (ins->flags & MONO_INST_HAS_METHOD)
3622 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3623 else
3624 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3625 s390_brasl (code, s390_r14, 0);
3626 }
3627 break;
3628 case OP_FCALL_REG: {
3629 call = (MonoCallInst*)ins;
3630 s390_lr (code, s390_r1, ins->sreg1);
3631 s390_basr (code, s390_r14, s390_r1);
3632 if (call->signature->ret->type == MONO_TYPE_R4)
3633 s390_ldebr (code, s390_f0, s390_f0);
3634 }
3635 break;
3636 case OP_LCALL_REG:
3637 case OP_VCALL_REG:
3638 case OP_VCALL2_REG:
3639 case OP_VOIDCALL_REG:
3640 case OP_CALL_REG: {
3641 s390_lr (code, s390_r1, ins->sreg1);
3642 s390_basr (code, s390_r14, s390_r1);
3643 }
3644 break;
3645 case OP_LCALL_MEMBASE:
3646 case OP_VCALL_MEMBASE:
3647 case OP_VCALL2_MEMBASE:
3648 case OP_VOIDCALL_MEMBASE:
3649 case OP_FCALL_MEMBASE:
3650 case OP_CALL_MEMBASE: {
3651 call = (MonoCallInst*)ins;
3652 if (s390_is_uimm12(ins->inst_offset))
3653 s390_l (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3654 else {
3655 if (s390_is_imm16(ins->inst_offset)) {
3656 s390_lhi (code, s390_r13, ins->inst_offset);
3657 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3658 } else {
3659 s390_basr (code, s390_r13, 0);
3660 s390_j (code, 4);
3661 s390_word (code, ins->inst_offset);
3662 s390_l (code, s390_r13, 0, s390_r13, 4);
3663 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3664 }
3665 }
3666 s390_basr (code, s390_r14, s390_r1);
3667 if (ins->opcode == OP_FCALL_MEMBASE && call->signature->ret->type == MONO_TYPE_R4)
3668 s390_ldebr (code, s390_f0, s390_f0);
3669 }
3670 break;
3671 case OP_LOCALLOC: {
3672 /*------------------------------------------*/
3673 /* To allocate space on the stack we have */
3674 /* to allow room for parameters passed in */
3675 /* calls, the backchain pointer and round */
3676 /* it to our stack alignment requirements */
3677 /*------------------------------------------*/
3678 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3679 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3680 s390_lr (code, s390_r1, ins->sreg1);
3681 if (ins->flags & MONO_INST_INIT)
3682 s390_lr (code, s390_r0, ins->sreg1);
3683 s390_ahi (code, s390_r1, 14);
3684 s390_srl (code, s390_r1, 0, 3);
3685 s390_sll (code, s390_r1, 0, 3);
3686 if (cfg->method->save_lmf) {
3687 /*----------------------------------*/
3688 /* we have to adjust lmf ebp value */
3689 /*----------------------------------*/
3690 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3691
3692 s390_lr (code, s390_r13, cfg->frame_reg);
3693 if (s390_is_uimm16(lmfOffset))
3694 s390_ahi (code, s390_r13, lmfOffset);
3695 else {
3696 s390_basr (code, s390_r14, 0);
3697 s390_j (code, 4);
3698 s390_word (code, lmfOffset);
3699 s390_a (code, s390_r13, 0, s390_r14, 4);
3700 }
3701 s390_lr (code, s390_r14, STK_BASE);
3702 s390_sr (code, s390_r14, s390_r1);
3703 s390_st (code, s390_r14, 0, s390_r13,
3704 G_STRUCT_OFFSET(MonoLMF, ebp));
3705 }
3706 s390_l (code, s390_r13, 0, STK_BASE, 0);
3707 s390_sr (code, STK_BASE, s390_r1);
3708 s390_st (code, s390_r13, 0, STK_BASE, 0);
3709 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3710 s390_srl (code, ins->dreg, 0, 3);
3711 s390_sll (code, ins->dreg, 0, 3);
3712 if (ins->flags & MONO_INST_INIT) {
3713 s390_lr (code, s390_r1, s390_r0);
3714 s390_lr (code, s390_r0, ins->dreg);
3715 s390_lr (code, s390_r14, s390_r12);
3716 s390_lhi (code, s390_r13, 0);
3717 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3718 s390_jo (code, -2);
3719 s390_lr (code, s390_r12, s390_r14);
3720 }
3721 }
3722 break;
3723 case OP_THROW: {
3724 s390_lr (code, s390_r2, ins->sreg1);
3725 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3726 (gpointer)"mono_arch_throw_exception");
3727 s390_brasl (code, s390_r14, 0);
3728 }
3729 break;
3730 case OP_RETHROW: {
3731 s390_lr (code, s390_r2, ins->sreg1);
3732 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3733 (gpointer)"mono_arch_rethrow_exception");
3734 s390_brasl (code, s390_r14, 0);
3735 }
3736 break;
3737 case OP_START_HANDLER: {
3738 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3739 if (s390_is_uimm12 (spvar->inst_offset)) {
3740 s390_st (code, s390_r14, 0,
3741 spvar->inst_basereg,
3742 spvar->inst_offset);
3743 } else {
3744 s390_basr (code, s390_r13, 0);
3745 s390_j (code, 4);
3746 s390_word (code, spvar->inst_offset);
3747 s390_l (code, s390_r13, 0, s390_r13, 4);
3748 s390_st (code, s390_r14, s390_r13,
3749 spvar->inst_basereg, 0);
3750 }
3751 }
3752 break;
3753 case OP_ENDFILTER: {
3754 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3755 if (ins->sreg1 != s390_r2)
3756 s390_lr (code, s390_r2, ins->sreg1);
3757 if (s390_is_uimm12 (spvar->inst_offset)) {
3758 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3759 spvar->inst_offset);
3760 } else {
3761 s390_basr (code, s390_r13, 0);
3762 s390_j (code, 4);
3763 s390_word (code, spvar->inst_offset);
3764 s390_l (code, s390_r13, 0, s390_r13, 4);
3765 s390_l (code, s390_r14, s390_r13,
3766 spvar->inst_basereg, 0);
3767 }
3768 s390_br (code, s390_r14);
3769 }
3770 break;
3771 case OP_ENDFINALLY: {
3772 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3773 if (s390_is_uimm12 (spvar->inst_offset)) {
3774 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3775 spvar->inst_offset);
3776 } else {
3777 s390_basr (code, s390_r13, 0);
3778 s390_j (code, 4);
3779 s390_word (code, spvar->inst_offset);
3780 s390_l (code, s390_r13, 0, s390_r13, 4);
3781 s390_l (code, s390_r14, s390_r13,
3782 spvar->inst_basereg, 0);
3783 }
3784 s390_br (code, s390_r14);
3785 }
3786 break;
3787 case OP_CALL_HANDLER: {
3788 mono_add_patch_info (cfg, code-cfg->native_code,
3789 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3790 s390_brasl (code, s390_r14, 0);
3791 mono_cfg_add_try_hole (cfg, ins->inst_eh_block, code, bb);
3792 }
3793 break;
3794 case OP_LABEL: {
3795 ins->inst_c0 = code - cfg->native_code;
3796 }
3797 break;
3798 case OP_RELAXED_NOP:
3799 case OP_NOP:
3800 case OP_DUMMY_USE:
3801 case OP_DUMMY_STORE:
3802 case OP_NOT_REACHED:
3803 case OP_NOT_NULL: {
3804 }
3805 break;
3806 case OP_BR:
3807 EMIT_UNCOND_BRANCH(ins);
3808 break;
3809 case OP_BR_REG: {
3810 s390_br (code, ins->sreg1);
3811 }
3812 break;
3813 case OP_CEQ:
3814 case OP_ICEQ: {
3815 s390_lhi (code, ins->dreg, 1);
3816 s390_jz (code, 4);
3817 s390_lhi (code, ins->dreg, 0);
3818 }
3819 break;
3820 case OP_CLT:
3821 case OP_ICLT: {
3822 s390_lhi (code, ins->dreg, 1);
3823 s390_jl (code, 4);
3824 s390_lhi (code, ins->dreg, 0);
3825 }
3826 break;
3827 case OP_CLT_UN:
3828 case OP_ICLT_UN: {
3829 s390_lhi (code, ins->dreg, 1);
3830 s390_jlo (code, 4);
3831 s390_lhi (code, ins->dreg, 0);
3832 }
3833 break;
3834 case OP_CGT:
3835 case OP_ICGT: {
3836 s390_lhi (code, ins->dreg, 1);
3837 s390_jh (code, 4);
3838 s390_lhi (code, ins->dreg, 0);
3839 }
3840 break;
3841 case OP_CGT_UN:
3842 case OP_ICGT_UN: {
3843 s390_lhi (code, ins->dreg, 1);
3844 s390_jho (code, 4);
3845 s390_lhi (code, ins->dreg, 0);
3846 }
3847 break;
3848 case OP_COND_EXC_EQ:
3849 case OP_COND_EXC_IEQ:
3850 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3851 break;
3852 case OP_COND_EXC_NE_UN:
3853 case OP_COND_EXC_INE_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_ILT:
3858 case OP_COND_EXC_LT_UN:
3859 case OP_COND_EXC_ILT_UN:
3860 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3861 break;
3862 case OP_COND_EXC_GT:
3863 case OP_COND_EXC_IGT:
3864 case OP_COND_EXC_GT_UN:
3865 case OP_COND_EXC_IGT_UN:
3866 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3867 break;
3868 case OP_COND_EXC_GE:
3869 case OP_COND_EXC_IGE:
3870 case OP_COND_EXC_GE_UN:
3871 case OP_COND_EXC_IGE_UN:
3872 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3873 break;
3874 case OP_COND_EXC_LE:
3875 case OP_COND_EXC_ILE:
3876 case OP_COND_EXC_LE_UN:
3877 case OP_COND_EXC_ILE_UN:
3878 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3879 break;
3880 case OP_COND_EXC_OV:
3881 case OP_COND_EXC_IOV:
3882 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3883 break;
3884 case OP_COND_EXC_NO:
3885 case OP_COND_EXC_INO:
3886 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3887 break;
3888 case OP_COND_EXC_C:
3889 case OP_COND_EXC_IC:
3890 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3891 break;
3892 case OP_COND_EXC_NC:
3893 case OP_COND_EXC_INC:
3894 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3895 break;
3896 case OP_IBEQ:
3897 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3898 break;
3899 case OP_IBNE_UN:
3900 EMIT_COND_BRANCH (ins, S390_CC_NE);
3901 break;
3902 case OP_IBLT:
3903 case OP_IBLT_UN:
3904 EMIT_COND_BRANCH (ins, S390_CC_LT);
3905 break;
3906 case OP_IBGT:
3907 case OP_IBGT_UN:
3908 EMIT_COND_BRANCH (ins, S390_CC_GT);
3909 break;
3910 case OP_IBGE:
3911 case OP_IBGE_UN:
3912 EMIT_COND_BRANCH (ins, S390_CC_GE);
3913 break;
3914 case OP_IBLE:
3915 case OP_IBLE_UN:
3916 EMIT_COND_BRANCH (ins, S390_CC_LE);
3917 break;
3918
3919 /* floating point opcodes */
3920 case OP_R8CONST: {
3921 if (*((float *) ins->inst_p0) == 0) {
3922 s390_lzdr (code, ins->dreg);
3923 } else {
3924 s390_basr (code, s390_r13, 0);
3925 s390_j (code, 4);
3926 s390_word (code, ins->inst_p0);
3927 s390_l (code, s390_r13, 0, s390_r13, 4);
3928 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3929 }
3930 }
3931 break;
3932 case OP_R4CONST: {
3933 if (*((float *) ins->inst_p0) == 0) {
3934 s390_lzdr (code, ins->dreg);
3935 } else {
3936 s390_basr (code, s390_r13, 0);
3937 s390_j (code, 4);
3938 s390_word (code, ins->inst_p0);
3939 s390_l (code, s390_r13, 0, s390_r13, 4);
3940 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3941 }
3942 }
3943 break;
3944 case OP_STORER8_MEMBASE_REG: {
3945 if (s390_is_uimm12(ins->inst_offset)) {
3946 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3947 } else {
3948 s390_basr (code, s390_r13, 0);
3949 s390_j (code, 4);
3950 s390_word (code, ins->inst_offset);
3951 s390_l (code, s390_r13, 0, s390_r13, 4);
3952 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3953 }
3954 }
3955 break;
3956 case OP_LOADR8_MEMBASE: {
3957 if (s390_is_uimm12(ins->inst_offset)) {
3958 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3959 } else {
3960 s390_basr (code, s390_r13, 0);
3961 s390_j (code, 4);
3962 s390_word (code, ins->inst_offset);
3963 s390_l (code, s390_r13, 0, s390_r13, 4);
3964 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3965 }
3966 }
3967 break;
3968 case OP_STORER4_MEMBASE_REG: {
3969 if (s390_is_uimm12(ins->inst_offset)) {
3970 s390_ledbr(code, s390_f15, ins->sreg1);
3971 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
3972 } else {
3973 s390_basr (code, s390_r13, 0);
3974 s390_j (code, 4);
3975 s390_word (code, ins->inst_offset);
3976 s390_l (code, s390_r13, 0, s390_r13, 4);
3977 s390_ledbr(code, s390_f15, ins->sreg1);
3978 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
3979 }
3980 }
3981 break;
3982 case OP_LOADR4_MEMBASE: {
3983 if (s390_is_uimm12(ins->inst_offset)) {
3984 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3985 } else {
3986 s390_basr (code, s390_r13, 0);
3987 s390_j (code, 4);
3988 s390_word (code, ins->inst_offset);
3989 s390_l (code, s390_r13, 0, s390_r13, 4);
3990 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3991 }
3992 }
3993 break;
3994 case OP_ICONV_TO_R_UN: {
3995 s390_cdfbr (code, ins->dreg, ins->sreg1);
3996 s390_ltr (code, ins->sreg1, ins->sreg1);
3997 s390_jnl (code, 12);
3998 s390_basr (code, s390_r13, 0);
3999 s390_j (code, 6);
4000 s390_word (code, 0x41f00000);
4001 s390_word (code, 0);
4002 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4003 }
4004 break;
4005 case OP_ICONV_TO_R4: {
4006 s390_cdfbr (code, ins->dreg, ins->sreg1);
4007 }
4008 break;
4009 case OP_ICONV_TO_R8: {
4010 s390_cdfbr (code, ins->dreg, ins->sreg1);
4011 }
4012 break;
4013 case OP_FCONV_TO_I1:
4014 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4015 break;
4016 case OP_FCONV_TO_U1:
4017 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4018 break;
4019 case OP_FCONV_TO_I2:
4020 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4021 break;
4022 case OP_FCONV_TO_U2:
4023 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4024 break;
4025 case OP_FCONV_TO_I4:
4026 case OP_FCONV_TO_I:
4027 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4028 break;
4029 case OP_FCONV_TO_U4:
4030 case OP_FCONV_TO_U:
4031 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4032 break;
4033 case OP_FCONV_TO_I8:
4034 case OP_FCONV_TO_U8:
4035 g_assert_not_reached ();
4036 /* Implemented as helper calls */
4037 break;
4038 case OP_LCONV_TO_R_UN:
4039 g_assert_not_reached ();
4040 /* Implemented as helper calls */
4041 break;
4042 case OP_LCONV_TO_OVF_I:
4043 case OP_LCONV_TO_OVF_I4_2: {
4044 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4045 short int *o[5];
4046 s390_ltr (code, ins->sreg1, ins->sreg1);
4047 s390_jnl (code, 0); CODEPTR(code, o[0]);
4048 s390_ltr (code, ins->sreg2, ins->sreg2);
4049 s390_jnl (code, 0); CODEPTR(code, o[1]);
4050 s390_lhi (code, s390_r13, -1);
4051 s390_cr (code, ins->sreg2, s390_r13);
4052 s390_jnz (code, 0); CODEPTR(code, o[2]);
4053 s390_j (code, 0); CODEPTR(code, o[3]);
4054 PTRSLOT(code, o[0]);
4055 s390_ltr (code, ins->sreg2, ins->sreg2);
4056 s390_jz (code, 0); CODEPTR(code, o[4]);
4057 PTRSLOT(code, o[1]);
4058 PTRSLOT(code, o[2]);
4059 mono_add_patch_info (cfg, code - cfg->native_code,
4060 MONO_PATCH_INFO_EXC, "OverflowException");
4061 s390_brasl (code, s390_r14, 0);
4062 PTRSLOT(code, o[3]);
4063 PTRSLOT(code, o[4]);
4064 if (ins->dreg != ins->sreg1)
4065 s390_lr (code, ins->dreg, ins->sreg1);
4066 }
4067 break;
4068 case OP_SQRT: {
4069 s390_sqdbr (code, ins->dreg, ins->sreg1);
4070 }
4071 break;
4072 case OP_FADD: {
4073 CHECK_SRCDST_COM_F;
4074 s390_adbr (code, ins->dreg, src2);
4075 }
4076 break;
4077 case OP_FSUB: {
4078 CHECK_SRCDST_NCOM_F;
4079 s390_sdbr (code, ins->dreg, src2);
4080 }
4081 break;
4082 case OP_FMUL: {
4083 CHECK_SRCDST_COM_F;
4084 s390_mdbr (code, ins->dreg, src2);
4085 }
4086 break;
4087 case OP_FDIV: {
4088 CHECK_SRCDST_NCOM_F;
4089 s390_ddbr (code, ins->dreg, src2);
4090 }
4091 break;
4092 case OP_FNEG: {
4093 s390_lcdbr (code, ins->dreg, ins->sreg1);
4094 }
4095 break;
4096 case OP_FREM: {
4097 CHECK_SRCDST_NCOM_F;
4098 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4099 }
4100 break;
4101 case OP_FCOMPARE: {
4102 s390_cdbr (code, ins->sreg1, ins->sreg2);
4103 }
4104 break;
4105 case OP_FCEQ: {
4106 s390_cdbr (code, ins->sreg1, ins->sreg2);
4107 s390_lhi (code, ins->dreg, 1);
4108 s390_je (code, 4);
4109 s390_lhi (code, ins->dreg, 0);
4110 }
4111 break;
4112 case OP_FCLT: {
4113 s390_cdbr (code, ins->sreg1, ins->sreg2);
4114 s390_lhi (code, ins->dreg, 1);
4115 s390_jl (code, 4);
4116 s390_lhi (code, ins->dreg, 0);
4117 }
4118 break;
4119 case OP_FCLT_UN: {
4120 s390_cdbr (code, ins->sreg1, ins->sreg2);
4121 s390_lhi (code, ins->dreg, 1);
4122 s390_jlo (code, 4);
4123 s390_lhi (code, ins->dreg, 0);
4124 }
4125 break;
4126 case OP_FCGT: {
4127 s390_cdbr (code, ins->sreg1, ins->sreg2);
4128 s390_lhi (code, ins->dreg, 1);
4129 s390_jh (code, 4);
4130 s390_lhi (code, ins->dreg, 0);
4131 }
4132 break;
4133 case OP_FCGT_UN: {
4134 s390_cdbr (code, ins->sreg1, ins->sreg2);
4135 s390_lhi (code, ins->dreg, 1);
4136 s390_jho (code, 4);
4137 s390_lhi (code, ins->dreg, 0);
4138 }
4139 break;
4140 case OP_FBEQ: {
4141 short *o;
4142 s390_jo (code, 0); CODEPTR(code, o);
4143 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4144 PTRSLOT(code, o);
4145 }
4146 break;
4147 case OP_FBNE_UN:
4148 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4149 break;
4150 case OP_FBLT: {
4151 short *o;
4152 s390_jo (code, 0); CODEPTR(code, o);
4153 EMIT_COND_BRANCH (ins, S390_CC_LT);
4154 PTRSLOT(code, o);
4155 }
4156 break;
4157 case OP_FBLT_UN:
4158 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4159 break;
4160 case OP_FBGT: {
4161 short *o;
4162 s390_jo (code, 0); CODEPTR(code, o);
4163 EMIT_COND_BRANCH (ins, S390_CC_GT);
4164 PTRSLOT(code, o);
4165 }
4166 break;
4167 case OP_FBGT_UN:
4168 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4169 break;
4170 case OP_FBGE: {
4171 short *o;
4172 s390_jo (code, 0); CODEPTR(code, o);
4173 EMIT_COND_BRANCH (ins, S390_CC_GE);
4174 PTRSLOT(code, o);
4175 }
4176 break;
4177 case OP_FBGE_UN:
4178 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4179 break;
4180 case OP_FBLE: {
4181 short *o;
4182 s390_jo (code, 0); CODEPTR(code, o);
4183 EMIT_COND_BRANCH (ins, S390_CC_LE);
4184 PTRSLOT(code, o);
4185 }
4186 break;
4187 case OP_FBLE_UN:
4188 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4189 break;
4190 case OP_CKFINITE: {
4191 short *o;
4192 s390_lhi (code, s390_r13, 0x7f);
4193 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4194 s390_jz (code, 0); CODEPTR(code, o);
4195 mono_add_patch_info (cfg, code - cfg->native_code,
4196 MONO_PATCH_INFO_EXC, "ArithmeticException");
4197 s390_brasl (code, s390_r14,0);
4198 PTRSLOT(code, o);
4199 }
4200 break;
4201 case OP_S390_MOVE: {
4202 if (ins->backend.size > 0) {
4203 if (ins->backend.size <= 256) {
4204 s390_mvc (code, ins->backend.size, ins->dreg,
4205 ins->inst_offset, ins->sreg1, ins->inst_imm);
4206 } else {
4207 s390_lr (code, s390_r0, ins->dreg);
4208 if (s390_is_imm16 (ins->inst_offset)) {
4209 s390_ahi (code, s390_r0, ins->inst_offset);
4210 } else {
4211 s390_basr (code, s390_r13, 0);
4212 s390_j (code, 6);
4213 s390_long (code, ins->inst_offset);
4214 s390_a (code, s390_r0, 0, s390_r13, 4);
4215 }
4216 s390_lr (code, s390_r12, ins->sreg1);
4217 if (s390_is_imm16 (ins->inst_imm)) {
4218 s390_ahi (code, s390_r12, ins->inst_imm);
4219 } else {
4220 s390_basr (code, s390_r13, 0);
4221 s390_j (code, 6);
4222 s390_long (code, ins->inst_imm);
4223 s390_a (code, s390_r12, 0, s390_r13, 4);
4224 }
4225 if (s390_is_imm16 (ins->backend.size)) {
4226 s390x_lhi (code, s390_r1, ins->backend.size);
4227 } else {
4228 s390_basr (code, s390_r13, 0);
4229 s390_j (code, 6);
4230 s390_long (code, ins->backend.size);
4231 s390_l (code, s390_r1, 0, s390_r13, 4);
4232 }
4233 s390_lr (code, s390_r1, ins->backend.size);
4234 s390_lr (code, s390_r13, s390_r1);
4235 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4236 s390_jo (code, -2);
4237 }
4238 }
4239 }
4240 case OP_ATOMIC_ADD_I4: {
4241 s390_lr (code, s390_r1, ins->sreg2);
4242 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4243 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4244 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4245 s390_jnz (code, -7);
4246 s390_lr (code, ins->dreg, s390_r1);
4247 }
4248 break;
4249 case OP_ATOMIC_ADD_NEW_I4: {
4250 s390_lr (code, s390_r1, ins->sreg2);
4251 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4252 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4253 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4254 s390_jnz (code, -7);
4255 s390_lr (code, ins->dreg, s390_r1);
4256 }
4257 break;
4258 case OP_ATOMIC_EXCHANGE_I4: {
4259 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4260 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4261 s390_jnz (code, -4);
4262 s390_lr (code, ins->dreg, s390_r0);
4263 }
4264 break;
4265 case OP_S390_BKCHAIN: {
4266 s390_lr (code, ins->dreg, ins->sreg1);
4267 if (s390_is_imm16 (cfg->stack_offset)) {
4268 s390_ahi (code, ins->dreg, cfg->stack_offset);
4269 } else {
4270 s390_basr (code, s390_r13, 0);
4271 s390_j (code, 6);
4272 s390_word (code, cfg->stack_offset);
4273 s390_a (code, ins->dreg, 0, s390_r13, 4);
4274 }
4275 }
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 %d)",
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
4296 cfg->code_len = code - cfg->native_code;
4297 }
4298
4299 /*========================= End of Function ========================*/
4300
4301 /*------------------------------------------------------------------*/
4302 /* */
4303 /* Name - mono_arch_register_lowlevel_calls */
4304 /* */
4305 /* Function - Register routines to help with --trace operation. */
4306 /* */
4307 /*------------------------------------------------------------------*/
4308
4309 void
4310 mono_arch_register_lowlevel_calls (void)
4311 {
4312 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4313 }
4314
4315 /*========================= End of Function ========================*/
4316
4317 /*------------------------------------------------------------------*/
4318 /* */
4319 /* Name - mono_arch_patch_code */
4320 /* */
4321 /* Function - Process the patch data created during the */
4322 /* instruction build process. This resolves jumps, */
4323 /* calls, variables etc. */
4324 /* */
4325 /*------------------------------------------------------------------*/
4326
4327 void
4328 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4329 guint8 *code, MonoJumpInfo *ji, MonoCodeManager *dyn_code_mp, gboolean run_cctors)
4330 {
4331 MonoJumpInfo *patch_info;
4332
4333 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4334 unsigned char *ip = patch_info->ip.i + code;
4335 gconstpointer target = NULL;
4336
4337 target = mono_resolve_patch_target (method, domain, code,
4338 patch_info, run_cctors);
4339
4340 switch (patch_info->type) {
4341 case MONO_PATCH_INFO_IP:
4342 case MONO_PATCH_INFO_EXC_NAME:
4343 case MONO_PATCH_INFO_LDSTR:
4344 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4345 case MONO_PATCH_INFO_LDTOKEN:
4346 case MONO_PATCH_INFO_EXC:
4347 continue;
4348 case MONO_PATCH_INFO_SWITCH:
4349 /*----------------------------------*/
4350 /* ip points at the basr r13,0/j +4 */
4351 /* instruction the vtable value */
4352 /* follows this (i.e. ip+6) */
4353 /*----------------------------------*/
4354 *((gconstpointer *)(ip+6)) = target;
4355 target = NULL;
4356 continue;
4357 case MONO_PATCH_INFO_METHODCONST:
4358 case MONO_PATCH_INFO_CLASS:
4359 case MONO_PATCH_INFO_IMAGE:
4360 case MONO_PATCH_INFO_FIELD:
4361 case MONO_PATCH_INFO_IID:
4362 target = S390_RELATIVE(target, ip);
4363 continue;
4364 case MONO_PATCH_INFO_R4:
4365 case MONO_PATCH_INFO_R8:
4366 case MONO_PATCH_INFO_METHOD_REL:
4367 g_assert_not_reached ();
4368 continue;
4369 default:
4370 target = S390_RELATIVE(target, ip);
4371 ip += 2;
4372 }
4373 s390_patch (ip, (guint32) target);
4374 }
4375 }
4376
4377 /*========================= End of Function ========================*/
4378
4379 /*------------------------------------------------------------------*/
4380 /* */
4381 /* Name - emit_load_volatile_registers */
4382 /* */
4383 /* Function - Create the instruction sequence for loading the */
4384 /* parameter registers for use with the 'tail' op. */
4385 /* */
4386 /* The register loading operations performed here */
4387 /* are the mirror of the store operations performed */
4388 /* in mono_arch_emit_prolog and need to be kept in */
4389 /* synchronization with it. */
4390 /* */
4391 /*------------------------------------------------------------------*/
4392
4393 guint8 *
4394 emit_load_volatile_registers (guint8 * code, MonoCompile *cfg)
4395 {
4396 MonoMethod *method = cfg->method;
4397 MonoMethodSignature *sig;
4398 MonoInst *inst;
4399 int pos, i;
4400 CallInfo *cinfo;
4401
4402 sig = mono_method_signature (method);
4403 pos = 0;
4404
4405 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4406
4407 if (cinfo->struct_ret) {
4408 ArgInfo *ainfo = &cinfo->ret;
4409 inst = cfg->vret_addr;
4410 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4411 }
4412
4413 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4414 ArgInfo *ainfo = cinfo->args + i;
4415 inst = cfg->args [pos];
4416
4417 if (inst->opcode == OP_REGVAR) {
4418 if (ainfo->regtype == RegTypeGeneral)
4419 s390_lr (code, ainfo->reg, inst->dreg);
4420 else if (ainfo->regtype == RegTypeFP) {
4421 if (inst->dreg != ainfo->reg) {
4422 if (ainfo->size == 4) {
4423 s390_ldebr (code, ainfo->reg, inst->dreg);
4424 } else {
4425 s390_ldr (code, ainfo->reg, inst->dreg);
4426 }
4427 }
4428 }
4429 else if (ainfo->regtype == RegTypeBase) {
4430 } else
4431 g_assert_not_reached ();
4432 } else {
4433 if (ainfo->regtype == RegTypeGeneral) {
4434 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4435 g_assert_not_reached();
4436 switch (ainfo->size) {
4437 case 1:
4438 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4439 break;
4440 case 2:
4441 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4442 break;
4443 case 8:
4444 s390_lm (code, ainfo->reg, ainfo->reg + 1,
4445 inst->inst_basereg, inst->inst_offset);
4446 break;
4447 default:
4448 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4449 }
4450 } else if (ainfo->regtype == RegTypeBase) {
4451 } else if (ainfo->regtype == RegTypeFP) {
4452 if (ainfo->size == 8)
4453 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4454 else if (ainfo->size == 4)
4455 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4456 else
4457 g_assert_not_reached ();
4458 } else if (ainfo->regtype == RegTypeStructByVal) {
4459 if (ainfo->reg != STK_BASE) {
4460 switch (ainfo->size) {
4461 case 1:
4462 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4463 break;
4464 case 2:
4465 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4466 break;
4467 case 4:
4468 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4469 break;
4470 case 8:
4471 s390_lm (code, ainfo->reg, ainfo->reg+1, inst->inst_basereg, inst->inst_offset);
4472 break;
4473 }
4474 }
4475 } else if (ainfo->regtype == RegTypeStructByAddr) {
4476 if (ainfo->reg != STK_BASE) {
4477 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4478 }
4479 } else
4480 g_assert_not_reached ();
4481 }
4482 pos++;
4483 }
4484
4485 return code;
4486 }
4487
4488 /*========================= End of Function ========================*/
4489
4490 /*------------------------------------------------------------------*/
4491 /* */
4492 /* Name - mono_arch_emit_prolog */
4493 /* */
4494 /* Function - Create the instruction sequence for a function */
4495 /* prolog. */
4496 /* */
4497 /*------------------------------------------------------------------*/
4498
4499 guint8 *
4500 mono_arch_emit_prolog (MonoCompile *cfg)
4501 {
4502 MonoMethod *method = cfg->method;
4503 MonoBasicBlock *bb;
4504 MonoMethodSignature *sig;
4505 MonoInst *inst;
4506 int alloc_size, pos, max_offset, i;
4507 guint8 *code;
4508 CallInfo *cinfo;
4509 int tracing = 0;
4510 int lmfOffset; \
4511
4512 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4513 tracing = 1;
4514
4515 cfg->code_size = 1024;
4516 cfg->native_code = code = g_malloc (cfg->code_size);
4517
4518 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4519
4520 if (cfg->arch.bkchain_reg != -1)
4521 s390_lr (code, cfg->arch.bkchain_reg, STK_BASE);
4522
4523 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4524 cfg->used_int_regs |= 1 << 11;
4525 }
4526
4527 alloc_size = cfg->stack_offset;
4528
4529 cfg->stack_usage = alloc_size;
4530 s390_lr (code, s390_r11, STK_BASE);
4531 if (s390_is_uimm16 (alloc_size)) {
4532 s390_ahi (code, STK_BASE, -alloc_size);
4533 } else {
4534 int stackSize = alloc_size;
4535 while (stackSize > 32767) {
4536 s390_ahi (code, STK_BASE, -32767);
4537 stackSize -= 32767;
4538 }
4539 s390_ahi (code, STK_BASE, -stackSize);
4540 }
4541 s390_st (code, s390_r11, 0, STK_BASE, 0);
4542
4543 if (cfg->frame_reg != STK_BASE)
4544 s390_lr (code, s390_r11, STK_BASE);
4545
4546 /* compute max_offset in order to use short forward jumps
4547 * we always do it on s390 because the immediate displacement
4548 * for jumps is too small
4549 */
4550 max_offset = 0;
4551 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4552 MonoInst *ins = bb->code;
4553 bb->max_offset = max_offset;
4554
4555 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4556 max_offset += 6;
4557
4558 MONO_BB_FOR_EACH_INS (bb, ins)
4559 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4560 }
4561
4562 /* load arguments allocated to register from the stack */
4563 sig = mono_method_signature (method);
4564 pos = 0;
4565
4566 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4567
4568 if (cinfo->struct_ret) {
4569 ArgInfo *ainfo = &cinfo->ret;
4570 inst = cfg->vret_addr;
4571 inst->backend.size = ainfo->vtsize;
4572 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4573 }
4574
4575 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4576 ArgInfo *ainfo = cinfo->args + i;
4577 inst = cfg->args [pos];
4578
4579 if (inst->opcode == OP_VTARG_ADDR)
4580 inst = inst->inst_left;
4581
4582 if (inst->opcode == OP_REGVAR) {
4583 if (ainfo->regtype == RegTypeGeneral)
4584 s390_lr (code, inst->dreg, ainfo->reg);
4585 else if (ainfo->regtype == RegTypeFP) {
4586 if (inst->dreg != ainfo->reg) {
4587 if (ainfo->size == 4) {
4588 s390_ledbr (code, inst->dreg, ainfo->reg);
4589 } else {
4590 s390_ldr (code, inst->dreg, ainfo->reg);
4591 }
4592 }
4593 }
4594 else if (ainfo->regtype == RegTypeBase) {
4595 s390_lr (code, s390_r13, STK_BASE);
4596 s390_ahi (code, s390_r13, alloc_size);
4597 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4598 } else
4599 g_assert_not_reached ();
4600
4601 if (cfg->verbose_level > 2)
4602 g_print ("Argument %d assigned to register %s\n",
4603 pos, mono_arch_regname (inst->dreg));
4604 } else {
4605 if (ainfo->regtype == RegTypeGeneral) {
4606 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4607 g_assert_not_reached();
4608 switch (ainfo->size) {
4609 case 1:
4610 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4611 break;
4612 case 2:
4613 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4614 break;
4615 case 8:
4616 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4617 inst->inst_basereg, inst->inst_offset);
4618 break;
4619 default:
4620 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4621 }
4622 } else if (ainfo->regtype == RegTypeBase) {
4623 } else if (ainfo->regtype == RegTypeFP) {
4624 if (ainfo->size == 8)
4625 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4626 else if (ainfo->size == 4)
4627 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4628 else
4629 g_assert_not_reached ();
4630 } else if (ainfo->regtype == RegTypeStructByVal) {
4631 int doffset = inst->inst_offset;
4632 int reg;
4633 if (ainfo->reg != STK_BASE)
4634 reg = ainfo->reg;
4635 else {
4636 reg = s390_r0;
4637 s390_lr (code, s390_r13, STK_BASE);
4638 s390_ahi (code, s390_r13, alloc_size);
4639 }
4640 switch (ainfo->size) {
4641 case 1:
4642 if (ainfo->reg == STK_BASE)
4643 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4644 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4645 break;
4646 case 2:
4647 if (ainfo->reg == STK_BASE)
4648 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4649 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4650 break;
4651 case 4:
4652 if (ainfo->reg == STK_BASE)
4653 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4654 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4655 break;
4656 case 8:
4657 if (ainfo->reg == STK_BASE)
4658 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4659 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4660 break;
4661 }
4662 } else if (ainfo->regtype == RegTypeStructByAddr) {
4663 if (ainfo->reg != STK_BASE)
4664 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4665 } else
4666 g_assert_not_reached ();
4667 }
4668 pos++;
4669 }
4670
4671 if (method->save_lmf) {
4672 /*---------------------------------------------------------------*/
4673 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4674 /*---------------------------------------------------------------*/
4675 lmfOffset = alloc_size - sizeof(MonoLMF);
4676
4677 s390_lr (code, s390_r13, cfg->frame_reg);
4678 if (s390_is_uimm16(lmfOffset))
4679 s390_ahi (code, s390_r13, lmfOffset);
4680 else {
4681 s390_basr (code, s390_r14, 0);
4682 s390_j (code, 4);
4683 s390_word (code, lmfOffset);
4684 s390_a (code, s390_r13, 0, s390_r14, 4);
4685 }
4686
4687 /*---------------------------------------------------------------*/
4688 /* Preserve the parameter registers while we fix up the lmf */
4689 /*---------------------------------------------------------------*/
4690 s390_stm (code, s390_r2, s390_r6, s390_r13,
4691 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4692
4693 /*---------------------------------------------------------------*/
4694 /* On return from this call r2 have the address of the &lmf */
4695 /*---------------------------------------------------------------*/
4696 mono_add_patch_info (cfg, code - cfg->native_code,
4697 MONO_PATCH_INFO_INTERNAL_METHOD,
4698 (gpointer)"mono_get_lmf_addr");
4699 s390_brasl (code, s390_r14, 0);
4700
4701 /*---------------------------------------------------------------*/
4702 /* Set lmf.lmf_addr = jit_tls->lmf */
4703 /*---------------------------------------------------------------*/
4704 s390_st (code, s390_r2, 0, s390_r13,
4705 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4706
4707 /*---------------------------------------------------------------*/
4708 /* Get current lmf */
4709 /*---------------------------------------------------------------*/
4710 s390_l (code, s390_r0, 0, s390_r2, 0);
4711
4712 /*---------------------------------------------------------------*/
4713 /* Set our lmf as the current lmf */
4714 /*---------------------------------------------------------------*/
4715 s390_st (code, s390_r13, 0, s390_r2, 0);
4716
4717 /*---------------------------------------------------------------*/
4718 /* Have our lmf.previous_lmf point to the last lmf */
4719 /*---------------------------------------------------------------*/
4720 s390_st (code, s390_r0, 0, s390_r13,
4721 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4722
4723 /*---------------------------------------------------------------*/
4724 /* save method info */
4725 /*---------------------------------------------------------------*/
4726 s390_basr (code, s390_r1, 0);
4727 s390_j (code, 4);
4728 s390_word (code, method);
4729 s390_l (code, s390_r1, 0, s390_r1, 4);
4730 s390_st (code, s390_r1, 0, s390_r13,
4731 G_STRUCT_OFFSET(MonoLMF, method));
4732
4733 /*---------------------------------------------------------------*/
4734 /* save the current IP */
4735 /*---------------------------------------------------------------*/
4736 s390_st (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4737 s390_basr (code, s390_r1, 0);
4738 s390_la (code, s390_r1, 0, s390_r1, 0);
4739 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4740
4741 /*---------------------------------------------------------------*/
4742 /* Save general and floating point registers */
4743 /*---------------------------------------------------------------*/
4744 s390_stm (code, s390_r2, s390_r12, s390_r13,
4745 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4746 for (i = 0; i < 16; i++) {
4747 s390_std (code, i, 0, s390_r13,
4748 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4749 }
4750
4751 /*---------------------------------------------------------------*/
4752 /* Restore the parameter registers now that we've set up the lmf */
4753 /*---------------------------------------------------------------*/
4754 s390_lm (code, s390_r2, s390_r6, s390_r13,
4755 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4756 }
4757
4758 if (tracing)
4759 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4760
4761 cfg->code_len = code - cfg->native_code;
4762
4763 g_assert (cfg->code_len < cfg->code_size);
4764
4765 return code;
4766 }
4767
4768 /*========================= End of Function ========================*/
4769
4770 /*------------------------------------------------------------------*/
4771 /* */
4772 /* Name - mono_arch_emit_epilog */
4773 /* */
4774 /* Function - Emit the instructions for a function epilog. */
4775 /* */
4776 /*------------------------------------------------------------------*/
4777
4778 void
4779 mono_arch_emit_epilog (MonoCompile *cfg)
4780 {
4781 MonoMethod *method = cfg->method;
4782 int tracing = 0;
4783 guint8 *code;
4784 int max_epilog_size = 96;
4785
4786 if (cfg->method->save_lmf)
4787 max_epilog_size += 128;
4788
4789 if (mono_jit_trace_calls != NULL)
4790 max_epilog_size += 128;
4791
4792 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4793 max_epilog_size += 128;
4794
4795 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4796 cfg->code_size *= 2;
4797 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4798 cfg->stat_code_reallocs++;
4799 }
4800
4801 code = cfg->native_code + cfg->code_len;
4802
4803 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4804 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4805 tracing = 1;
4806 }
4807
4808 if (method->save_lmf)
4809 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4810
4811 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4812 s390_l (code, STK_BASE, 0, STK_BASE, 0);
4813 else
4814 code = backUpStackPtr(cfg, code, STK_BASE);
4815
4816 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4817 s390_br (code, s390_r14);
4818
4819 cfg->code_len = code - cfg->native_code;
4820
4821 g_assert (cfg->code_len < cfg->code_size);
4822
4823 }
4824
4825 /*========================= End of Function ========================*/
4826
4827 /*------------------------------------------------------------------*/
4828 /* */
4829 /* Name - mono_arch_emit_exceptions */
4830 /* */
4831 /* Function - Emit the blocks to handle exception conditions. */
4832 /* */
4833 /*------------------------------------------------------------------*/
4834
4835 void
4836 mono_arch_emit_exceptions (MonoCompile *cfg)
4837 {
4838 MonoJumpInfo *patch_info;
4839 guint8 *code;
4840 int nThrows = 0,
4841 exc_count = 0,
4842 iExc;
4843 guint32 code_size;
4844 MonoClass *exc_classes [MAX_EXC];
4845 guint8 *exc_throw_start [MAX_EXC];
4846
4847 for (patch_info = cfg->patch_info;
4848 patch_info;
4849 patch_info = patch_info->next) {
4850 if (patch_info->type == MONO_PATCH_INFO_EXC)
4851 exc_count++;
4852 }
4853
4854 code_size = exc_count * 26;
4855
4856 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4857 cfg->code_size *= 2;
4858 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4859 cfg->stat_code_reallocs++;
4860 }
4861
4862 code = cfg->native_code + cfg->code_len;
4863
4864 /*---------------------------------------------------------------------*/
4865 /* Add code to raise exceptions */
4866 /*---------------------------------------------------------------------*/
4867 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4868 switch (patch_info->type) {
4869 case MONO_PATCH_INFO_EXC: {
4870 guint8 *ip = patch_info->ip.i + cfg->native_code;
4871 MonoClass *exc_class;
4872 guint32 throw_ip;
4873
4874 /*-----------------------------------------------------*/
4875 /* Patch the branch in epilog to come here */
4876 /*-----------------------------------------------------*/
4877 s390_patch (ip + 2, (guint32) (S390_RELATIVE(code,ip)));
4878
4879 exc_class = mono_class_from_name (mono_defaults.corlib,
4880 "System",
4881 patch_info->data.name);
4882 g_assert (exc_class);
4883 throw_ip = patch_info->ip.i;
4884
4885 for (iExc = 0; iExc < nThrows; ++iExc)
4886 if (exc_classes [iExc] == exc_class)
4887 break;
4888
4889 if (iExc < nThrows) {
4890 s390_jcl (code, S390_CC_UN, (guint32) exc_throw_start [iExc]);
4891 patch_info->type = MONO_PATCH_INFO_NONE;
4892 } else {
4893
4894 if (nThrows < MAX_EXC) {
4895 exc_classes [nThrows] = exc_class;
4896 exc_throw_start [nThrows] = code;
4897 }
4898
4899 /*---------------------------------------------*/
4900 /* Patch the parameter passed to the handler */
4901 /*---------------------------------------------*/
4902 s390_basr (code, s390_r13, 0);
4903 s390_j (code, 4);
4904 s390_word (code, patch_info->data.target);
4905 /*---------------------------------------------*/
4906 /* Load return address & parameter register */
4907 /*---------------------------------------------*/
4908 s390_larl (code, s390_r14, (gsize)S390_RELATIVE((patch_info->ip.i +
4909 cfg->native_code + 8), code));
4910 s390_l (code, s390_r2, 0, s390_r13, 4);
4911 /*---------------------------------------------*/
4912 /* Reuse the current patch to set the jump */
4913 /*---------------------------------------------*/
4914 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4915 patch_info->data.name = "mono_arch_throw_exception_by_name";
4916 patch_info->ip.i = code - cfg->native_code;
4917 s390_jcl (code, S390_CC_UN, 0);
4918 }
4919 break;
4920 }
4921 default:
4922 /* do nothing */
4923 break;
4924 }
4925 }
4926
4927 cfg->code_len = code - cfg->native_code;
4928
4929 g_assert (cfg->code_len < cfg->code_size);
4930
4931 }
4932
4933 /*========================= End of Function ========================*/
4934
4935 /*------------------------------------------------------------------*/
4936 /* */
4937 /* Name - mono_arch_finish_init */
4938 /* */
4939 /* Function - Setup the JIT's Thread Level Specific Data. */
4940 /* */
4941 /*------------------------------------------------------------------*/
4942
4943 void
4944 mono_arch_finish_init (void)
4945 {
4946 #if HAVE_KW_THREAD
4947 # if 0
4948 __asm__ ("\tear\t%r1,0\n"
4949 "\tlr\t%0,%3\n"
4950 "\tsr\t%0,%r1\n"
4951 "\tlr\t%1,%4\n"
4952 "\tsr\t%1,%r1\n"
4953 "\tlr\t%2,%5\n"
4954 "\tsr\t%2,%r1\n"
4955 : "=r" (appdomain_tls_offset),
4956 "=r" (thread_tls_offset),
4957 "=r" (lmf_tls_offset)
4958 : "r" (&tls_appdomain),
4959 "r" (&tls_current_object),
4960 "r" (&mono_lmf_addr)
4961 : "1", "cc");
4962 # endif
4963 #endif
4964
4965 if (!lmf_addr_key_inited) {
4966 lmf_addr_key_inited = TRUE;
4967 pthread_key_create (&lmf_addr_key, NULL);
4968 }
4969 pthread_setspecific (lmf_addr_key, &tls->lmf);
4970
4971 }
4972
4973 /*========================= End of Function ========================*/
4974
4975 /*------------------------------------------------------------------*/
4976 /* */
4977 /* Name - mono_arch_free_jit_tls_data */
4978 /* */
4979 /* Function - Free tls data. */
4980 /* */
4981 /*------------------------------------------------------------------*/
4982
4983 void
4984 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4985 {
4986 }
4987
4988 /*========================= End of Function ========================*/
4989
4990 /*------------------------------------------------------------------*/
4991 /* */
4992 /* Name - mono_arch_emit_inst_for_method */
4993 /* */
4994 /*------------------------------------------------------------------*/
4995
4996 MonoInst*
4997 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
4998 {
4999 return NULL;
5000 }
5001
5002 /*========================= End of Function ========================*/
5003
5004 /*------------------------------------------------------------------*/
5005 /* */
5006 /* Name - mono_arch_decompose_opts */
5007 /* */
5008 /*------------------------------------------------------------------*/
5009
5010 void
5011 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5012 {
5013 switch (ins->opcode) {
5014 case OP_ISUB_OVF:
5015 ins->opcode = OP_S390_ISUB_OVF;
5016 break;
5017 case OP_ISUB_OVF_UN:
5018 ins->opcode = OP_S390_ISUB_OVF_UN;
5019 break;
5020 case OP_IADD_OVF:
5021 ins->opcode = OP_S390_IADD_OVF;
5022 break;
5023 case OP_IADD_OVF_UN:
5024 ins->opcode = OP_S390_IADD_OVF_UN;
5025 break;
5026 default:
5027 break;
5028 }
5029 }
5030
5031 /*========================= End of Function ========================*/
5032
5033 /*------------------------------------------------------------------*/
5034 /* */
5035 /* Name - mono_arch_decompose_long_opts */
5036 /* */
5037 /*------------------------------------------------------------------*/
5038
5039 void
5040 mono_arch_decompose_long_opts (MonoCompile *cfg, MonoInst *ins)
5041 {
5042 // The generic code seems to work for OP_LSUB fine on s390, why is a different
5043 // implementation needed ? gcc also seems to use the different implementation.
5044 // FIXME: What about the other OP_L opcodes below ?
5045
5046 switch (ins->opcode) {
5047 case OP_LADD_OVF:
5048 case OP_LADD_OVF_UN:
5049 case OP_LSUB_OVF:
5050 case OP_LSUB_OVF_UN: {
5051 int opcode = 0;
5052
5053 switch (ins->opcode) {
5054 case OP_LADD:
5055 opcode = OP_S390_LADD;
5056 break;
5057 case OP_LADD_OVF:
5058 opcode = OP_S390_LADD_OVF;
5059 break;
5060 case OP_LADD_OVF_UN:
5061 opcode = OP_S390_LADD_OVF_UN;
5062 break;
5063 case OP_LSUB:
5064 opcode = OP_S390_LSUB;
5065 break;
5066 case OP_LSUB_OVF:
5067 opcode = OP_S390_LSUB_OVF;
5068 break;
5069 case OP_LSUB_OVF_UN:
5070 opcode = OP_S390_LSUB_OVF_UN;
5071 break;
5072 default:
5073 g_assert_not_reached ();
5074 }
5075
5076 /* These hard regs make ssa crazy */
5077 cfg->disable_ssa = TRUE;
5078 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r0, ins->sreg1 + 1);
5079 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r1, ins->sreg1 + 2);
5080 MONO_EMIT_NEW_BIALU (cfg, opcode, ins->dreg, ins->sreg2 + 1, ins->sreg2 + 2);
5081 NULLIFY_INS (ins);
5082 break;
5083 }
5084 case OP_LADD_IMM: {
5085 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5086 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5087 MONO_EMIT_NEW_BIALU (cfg, OP_LADD, ins->dreg, ins->sreg1, dreg);
5088 NULLIFY_INS (ins);
5089 break;
5090 }
5091 case OP_LSUB_IMM: {
5092 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5093 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5094 MONO_EMIT_NEW_BIALU (cfg, OP_LSUB, ins->dreg, ins->sreg1, dreg);
5095 NULLIFY_INS (ins);
5096 break;
5097 }
5098 case OP_LNEG: {
5099 MONO_EMIT_NEW_BIALU (cfg, OP_S390_LNEG, ins->dreg, ins->sreg1 + 1, ins->sreg1 + 2);
5100 NULLIFY_INS (ins);
5101 break;
5102 }
5103 case OP_ISUB_OVF:
5104 ins->opcode = OP_S390_ISUB_OVF;
5105 break;
5106 case OP_ISUB_OVF_UN:
5107 ins->opcode = OP_S390_ISUB_OVF_UN;
5108 break;
5109 default:
5110 break;
5111 }
5112 }
5113
5114 /*========================= End of Function ========================*/
5115
5116 /*------------------------------------------------------------------*/
5117 /* */
5118 /* Name - mono_arch_print_tree */
5119 /* */
5120 /* Function - Print platform-specific opcode details. */
5121 /* */
5122 /* Returns - 1 - opcode details have been printed */
5123 /* 0 - opcode details have not been printed */
5124 /* */
5125 /*------------------------------------------------------------------*/
5126
5127 gboolean
5128 mono_arch_print_tree (MonoInst *tree, int arity)
5129 {
5130 gboolean done;
5131
5132 switch (tree->opcode) {
5133 case OP_S390_LOADARG:
5134 case OP_S390_ARGREG:
5135 case OP_S390_ARGPTR:
5136 printf ("[0x%lx(%s)]", tree->inst_offset,
5137 mono_arch_regname (tree->inst_basereg));
5138 done = 1;
5139 break;
5140 case OP_S390_STKARG:
5141 printf ("[0x%lx(previous_frame)]",
5142 tree->inst_offset);
5143 done = 1;
5144 break;
5145 case OP_S390_MOVE:
5146 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5147 tree->inst_offset, tree->backend.size,
5148 mono_arch_regname(tree->dreg), tree->inst_imm,
5149 mono_arch_regname(tree->sreg1));
5150 done = 1;
5151 break;
5152 case OP_S390_SETF4RET:
5153 printf ("[%s,%s]",
5154 mono_arch_fregname (tree->dreg),
5155 mono_arch_fregname (tree->sreg1));
5156 done = 1;
5157 break;
5158 case OP_TLS_GET:
5159 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5160 tree->inst_imm,
5161 mono_arch_regname (tree->sreg1));
5162 done = 1;
5163 break;
5164 case OP_S390_BKCHAIN:
5165 printf ("[previous_frame(%s)]",
5166 mono_arch_regname (tree->sreg1));
5167 done = 1;
5168 break;
5169 default:
5170 done = 0;
5171 }
5172 return (done);
5173 }
5174
5175 /*========================= End of Function ========================*/
5176
5177 /*------------------------------------------------------------------*/
5178 /* */
5179 /* Name - mono_arch_regalloc_cost */
5180 /* */
5181 /* Function - Determine the cost, in the number of memory */
5182 /* references, of the action of allocating the var- */
5183 /* iable VMV into a register during global register */
5184 /* allocation. */
5185 /* */
5186 /* Returns - Cost */
5187 /* */
5188 /*------------------------------------------------------------------*/
5189
5190 guint32
5191 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5192 {
5193 /* FIXME: */
5194 return 2;
5195 }
5196
5197 /*========================= End of Function ========================*/
5198
5199 /*------------------------------------------------------------------*/
5200 /* */
5201 /* Name - mono_arch_get_domain_intrinsic */
5202 /* */
5203 /* Function - */
5204 /* */
5205 /* Returns - */
5206 /* */
5207 /*------------------------------------------------------------------*/
5208
5209 MonoInst *
5210 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5211 {
5212 MonoInst *ins;
5213
5214 if (appdomain_tls_offset == -1)
5215 return NULL;
5216
5217 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5218 ins->inst_offset = appdomain_tls_offset;
5219 return (ins);
5220 }
5221
5222 /*========================= End of Function ========================*/
5223
5224 /*------------------------------------------------------------------*/
5225 /* */
5226 /* Name - mono_arch_flush_register_windows */
5227 /* */
5228 /* Function - */
5229 /* */
5230 /* Returns - */
5231 /* */
5232 /*------------------------------------------------------------------*/
5233
5234 void
5235 mono_arch_flush_register_windows (void)
5236 {
5237 }
5238
5239 /*========================= End of Function ========================*/
5240
5241 /*------------------------------------------------------------------*/
5242 /* */
5243 /* Name - mono_arch_get_lmf_addr */
5244 /* */
5245 /* Function - */
5246 /* */
5247 /* Returns - */
5248 /* */
5249 /*------------------------------------------------------------------*/
5250
5251 gpointer
5252 mono_arch_get_lmf_addr (void)
5253 {
5254 return pthread_getspecific (lmf_addr_key);
5255 }
5256
5257
5258 /*========================= End of Function ========================*/
5259
5260 /*------------------------------------------------------------------*/
5261 /* */
5262 /* Name - mono_arch_get_patch_offset */
5263 /* */
5264 /* Function - Dummy entry point until s390x supports aot. */
5265 /* */
5266 /* Returns - Offset for patch. */
5267 /* */
5268 /*------------------------------------------------------------------*/
5269
5270 guint32
5271 mono_arch_get_patch_offset (guint8 *code)
5272 {
5273 return 0;
5274 }
5275
5276 /*========================= End of Function ========================*/
5277
5278 /*------------------------------------------------------------------*/
5279 /* */
5280 /* Name - mono_arch_context_get_int_reg. */
5281 /* */
5282 /* Function - Dummy entry point until s390x supports aot. */
5283 /* */
5284 /* Returns - Pointer to intreg. */
5285 /* */
5286 /*------------------------------------------------------------------*/
5287
5288 mgreg_t
5289 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5290 {
5291 /* FIXME: implement */
5292 g_assert_not_reached ();
5293 return NULL;
5294 }
5295
5296 /*========================= End of Function ========================*/
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