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[mono.git] / mono / mini / mini-s390x.c
blob1c0cb74f25b694e9a79d171f4d0f455d36dd9aa6
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_lgr (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_lgr (code, s390_r13, ins->sreg2); \
78 } else { \
79 src2 = ins->sreg2; \
80 } \
81 if (ins->dreg != ins->sreg1) { \
82 s390_lgr (code, ins->dreg, ins->sreg1); \
83 }
84
85 #define CHECK_SRCDST_COM_I \
86 if (ins->dreg == ins->sreg2) { \
87 src2 = ins->sreg1; \
88 } else { \
89 src2 = ins->sreg2; \
90 if (ins->dreg != ins->sreg1) { \
91 s390_lgfr (code, ins->dreg, ins->sreg1); \
92 } \
93 }
94
95 #define CHECK_SRCDST_NCOM_I \
96 if (ins->dreg == ins->sreg2) { \
97 src2 = s390_r13; \
98 s390_lgfr (code, s390_r13, ins->sreg2); \
99 } else { \
100 src2 = ins->sreg2; \
101 } \
102 if (ins->dreg != ins->sreg1) { \
103 s390_lgfr (code, ins->dreg, ins->sreg1); \
104 }
105
106 #define CHECK_SRCDST_COM_F \
107 if (ins->dreg == ins->sreg2) { \
108 src2 = ins->sreg1; \
109 } else { \
110 src2 = ins->sreg2; \
111 if (ins->dreg != ins->sreg1) { \
112 s390_ldr (code, ins->dreg, ins->sreg1); \
113 } \
114 }
115
116 #define CHECK_SRCDST_NCOM_F \
117 if (ins->dreg == ins->sreg2) { \
118 src2 = s390_f15; \
119 s390_ldr (code, s390_r13, ins->sreg2); \
120 } else { \
121 src2 = ins->sreg2; \
122 } \
123 if (ins->dreg != ins->sreg1) { \
124 s390_ldr (code, ins->dreg, ins->sreg1); \
125 }
126
127 #define MONO_EMIT_NEW_MOVE(cfg,dest,offset,src,imm,size) do { \
128 MonoInst *inst; \
129 int tmpr = 0; \
130 int sReg, dReg; \
131 MONO_INST_NEW (cfg, inst, OP_NOP); \
132 if (size > 256) { \
133 tmpr = mono_alloc_preg (cfg); \
134 MONO_EMIT_NEW_ICONST(cfg,tmpr,size); \
135 inst->dreg = dest; \
136 inst->inst_offset = offset; \
137 inst->sreg1 = src; \
138 inst->inst_imm = imm; \
139 inst->sreg2 = tmpr; \
140 } else { \
141 if (s390_is_uimm12(offset)) { \
142 inst->dreg = dest; \
143 inst->inst_offset = offset; \
144 } else { \
145 dReg = mono_alloc_preg (cfg); \
146 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
147 dReg, dest, offset); \
148 inst->dreg = dReg; \
149 inst->inst_offset = 0; \
150 } \
151 if (s390_is_uimm12(imm)) { \
152 inst->sreg1 = src; \
153 inst->inst_imm = imm; \
154 } else { \
155 sReg = mono_alloc_preg (cfg); \
156 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
157 sReg, src, imm); \
158 inst->sreg1 = sReg; \
159 inst->inst_imm = 0; \
160 } \
161 } \
162 inst->opcode = OP_S390_MOVE; \
163 inst->backend.size = size; \
164 MONO_ADD_INS (cfg->cbb, inst); \
165 } while (0)
166
167 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
168 int reg = mono_alloc_preg (cfg); \
169 switch (size) { \
170 case 0: \
171 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
172 break; \
173 case 1: \
174 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
175 reg, sr, so); \
176 break; \
177 case 2: \
178 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
179 reg, sr, so); \
180 break; \
181 case 4: \
182 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
183 reg, sr, so); \
184 break; \
185 case 8: \
186 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI8_MEMBASE, \
187 reg, sr, so); \
188 break; \
189 } \
190 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
191 } while (0)
192
193 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
194 int tmpr; \
195 switch (size) { \
196 case 0: \
197 tmpr = mono_alloc_preg (cfg); \
198 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
199 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
200 dr, dx, tmpr); \
201 break; \
202 case 1: \
203 tmpr = mono_alloc_preg (cfg); \
204 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
205 tmpr, sr, so); \
206 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
207 dr, dx, tmpr); \
208 break; \
209 case 2: \
210 tmpr = mono_alloc_preg (cfg); \
211 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
212 tmpr, sr, so); \
213 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
214 dr, dx, tmpr); \
215 break; \
216 case 4: \
217 tmpr = mono_alloc_preg (cfg); \
218 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
219 tmpr, sr, so); \
220 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
221 dr, dx, tmpr); \
222 break; \
223 case 8: \
224 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
225 break; \
226 } \
227 } while (0)
228
229 #undef DEBUG
230 #define DEBUG(a) if (cfg->verbose_level > 1) a
231
232 #define MAX_EXC 16
233
234 #define S390_TRACE_STACK_SIZE (5*sizeof(gpointer)+4*sizeof(gdouble))
235
236 #define MAX(a, b) ((a) > (b) ? (a) : (b))
237
238 /*========================= End of Defines =========================*/
239
240 /*------------------------------------------------------------------*/
241 /* I n c l u d e s */
242 /*------------------------------------------------------------------*/
243
244 #include "mini.h"
245 #include <string.h>
246
247 #include <mono/metadata/appdomain.h>
248 #include <mono/metadata/debug-helpers.h>
249 #include <mono/metadata/profiler-private.h>
250 #include <mono/utils/mono-math.h>
251
252 #include "mini-s390x.h"
253 #include "cpu-s390x.h"
254 #include "jit-icalls.h"
255 #include "ir-emit.h"
256
257 /*========================= End of Includes ========================*/
258
259 /*------------------------------------------------------------------*/
260 /* T y p e d e f s */
261 /*------------------------------------------------------------------*/
262
263 typedef struct {
264 guint stack_size,
265 local_size,
266 code_size,
267 parm_size,
268 offset,
269 offStruct,
270 retStruct;
271 } size_data;
272
273 /*------------------------------------------------------------------*/
274 /* Used by the instrument_emit_epilog */
275 /*------------------------------------------------------------------*/
276
277 enum {
278 SAVE_NONE,
279 SAVE_STRUCT,
280 SAVE_ONE,
281 SAVE_TWO,
282 SAVE_R4,
283 SAVE_R8
284 };
285
286 typedef struct InstList InstList;
287
288 struct InstList {
289 InstList *prev;
290 InstList *next;
291 MonoInst *data;
292 };
293
294 typedef enum {
295 RegTypeGeneral,
296 RegTypeBase,
297 RegTypeFP,
298 RegTypeFPR4,
299 RegTypeStructByVal,
300 RegTypeStructByValInFP,
301 RegTypeStructByAddr,
302 RegTypeStructByAddrOnStack
303 } ArgStorage;
304
305 typedef struct {
306 gint32 offset; /* offset from caller's stack */
307 gint32 offparm; /* offset from callee's stack */
308 guint16 vtsize; /* in param area */
309 guint8 reg;
310 ArgStorage regtype;
311 guint32 size; /* Size of structure used by RegTypeStructByVal */
312 gint32 type; /* Data type of argument */
313 } ArgInfo;
314
315 typedef struct {
316 int nargs;
317 int lastgr;
318 guint32 stack_usage;
319 guint32 struct_ret;
320 ArgInfo ret;
321 ArgInfo sigCookie;
322 size_data sz;
323 ArgInfo args [1];
324 } CallInfo;
325
326 typedef struct {
327 gint64 gr[5]; /* R2-R6 */
328 gdouble fp[3]; /* F0-F2 */
329 } __attribute__ ((packed)) RegParm;
330
331 /*========================= End of Typedefs ========================*/
332
333 /*------------------------------------------------------------------*/
334 /* P r o t o t y p e s */
335 /*------------------------------------------------------------------*/
336
337 static void indent (int);
338 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
339 static void decodeParm (MonoType *, void *, int);
340 static void enter_method (MonoMethod *, RegParm *, char *);
341 static void leave_method (MonoMethod *, ...);
342 static gboolean is_regsize_var (MonoType *);
343 static inline void add_general (guint *, size_data *, ArgInfo *);
344 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
345 static inline void add_float (guint *, size_data *, ArgInfo *);
346 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
347 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
348 gpointer mono_arch_get_lmf_addr (void);
349 static guint8 * emit_load_volatile_arguments (guint8 *, MonoCompile *);
350 static void catch_SIGILL(int, siginfo_t *, void *);
351
352 /*========================= End of Prototypes ======================*/
353
354 /*------------------------------------------------------------------*/
355 /* G l o b a l V a r i a b l e s */
356 /*------------------------------------------------------------------*/
357
358 int mono_exc_esp_offset = 0;
359
360 static int indent_level = 0;
361
362 int has_ld = 0;
363
364 static gboolean tls_offset_inited = FALSE;
365
366 static int appdomain_tls_offset = -1,
367 thread_tls_offset = -1;
368
369 pthread_key_t lmf_addr_key;
370
371 gboolean lmf_addr_key_inited = FALSE;
372
373 #if 0
374
375 extern __thread MonoDomain *tls_appdomain;
376 extern __thread MonoThread *tls_current_object;
377 extern __thread gpointer mono_lmf_addr;
378
379 #endif
380
381 /*====================== End of Global Variables ===================*/
382
383 /*------------------------------------------------------------------*/
384 /* */
385 /* Name - mono_arch_regname */
386 /* */
387 /* Function - Returns the name of the register specified by */
388 /* the input parameter. */
389 /* */
390 /*------------------------------------------------------------------*/
391
392 const char*
393 mono_arch_regname (int reg) {
394 static const char * rnames[] = {
395 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
396 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
397 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
398 "s390_r15"
399 };
400
401 if (reg >= 0 && reg < 16)
402 return rnames [reg];
403 else
404 return "unknown";
405 }
406
407 /*========================= End of Function ========================*/
408
409 /*------------------------------------------------------------------*/
410 /* */
411 /* Name - mono_arch_fregname */
412 /* */
413 /* Function - Returns the name of the register specified by */
414 /* the input parameter. */
415 /* */
416 /*------------------------------------------------------------------*/
417
418 const char*
419 mono_arch_fregname (int reg) {
420 static const char * rnames[] = {
421 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
422 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
423 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
424 "s390_f15"
425 };
426
427 if (reg >= 0 && reg < 16)
428 return rnames [reg];
429 else
430 return "unknown";
431 }
432
433 /*========================= End of Function ========================*/
434
435 /*------------------------------------------------------------------*/
436 /* */
437 /* Name - arch_get_argument_info */
438 /* */
439 /* Function - Gathers information on parameters such as size, */
440 /* alignment, and padding. arg_info should be large */
441 /* enough to hold param_count + 1 entries. */
442 /* */
443 /* Parameters - @csig - Method signature */
444 /* @param_count - No. of parameters to consider */
445 /* @arg_info - An array to store the result info */
446 /* */
447 /* Returns - Size of the activation frame */
448 /* */
449 /*------------------------------------------------------------------*/
450
451 int
452 mono_arch_get_argument_info (MonoMethodSignature *csig,
453 int param_count,
454 MonoJitArgumentInfo *arg_info)
455 {
456 int k, frame_size = 0;
457 int size, align, pad;
458 int offset = 8;
459
460 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
461 frame_size += sizeof (gpointer);
462 offset += 8;
463 }
464
465 arg_info [0].offset = offset;
466
467 if (csig->hasthis) {
468 frame_size += sizeof (gpointer);
469 offset += 8;
470 }
471
472 arg_info [0].size = frame_size;
473
474 for (k = 0; k < param_count; k++) {
475
476 if (csig->pinvoke)
477 size = mono_type_native_stack_size (csig->params [k], (guint32 *) &align);
478 else
479 size = mini_type_stack_size (NULL, csig->params [k], &align);
480
481 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
482 arg_info [k].pad = pad;
483 frame_size += size;
484 arg_info [k + 1].pad = 0;
485 arg_info [k + 1].size = size;
486 offset += pad;
487 arg_info [k + 1].offset = offset;
488 offset += size;
489 }
490
491 align = MONO_ARCH_FRAME_ALIGNMENT;
492 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
493 arg_info [k].pad = pad;
494
495 return frame_size;
496 }
497
498 /*========================= End of Function ========================*/
499
500 /*------------------------------------------------------------------*/
501 /* */
502 /* Name - retFitsInReg. */
503 /* */
504 /* Function - Determines if a value can be returned in one or */
505 /* two registers. */
506 /* */
507 /*------------------------------------------------------------------*/
508
509 static inline gboolean
510 retFitsInReg(guint32 size)
511 {
512 switch (size) {
513 case 0:
514 case 1:
515 case 2:
516 case 4:
517 case 8:
518 return (TRUE);
519 break;
520 default:
521 return (FALSE);
522 }
523 }
524
525 /*========================= End of Function ========================*/
526
527 /*------------------------------------------------------------------*/
528 /* */
529 /* Name - backStackPtr. */
530 /* */
531 /* Function - Restore Stack Pointer to previous frame. */
532 /* */
533 /*------------------------------------------------------------------*/
534
535 static inline guint8 *
536 backUpStackPtr(MonoCompile *cfg, guint8 *code)
537 {
538 int stackSize = cfg->stack_usage;
539
540 if (s390_is_imm16 (stackSize)) {
541 s390_aghi (code, STK_BASE, stackSize);
542 } else {
543 while (stackSize > 32767) {
544 s390_aghi (code, STK_BASE, 32767);
545 stackSize -= 32767;
546 }
547 s390_aghi (code, STK_BASE, stackSize);
548 }
549 return (code);
550 }
551
552 /*========================= End of Function ========================*/
553
554 /*------------------------------------------------------------------*/
555 /* */
556 /* Name - indent */
557 /* */
558 /* Function - Perform nice indenting to current level */
559 /* */
560 /*------------------------------------------------------------------*/
561
562 static void
563 indent (int diff) {
564 int v;
565 if (diff < 0)
566 indent_level += diff;
567 v = indent_level;
568 printf("[%3d] ",v);
569 while (v-- > 0) {
570 printf (". ");
571 }
572 if (diff > 0)
573 indent_level += diff;
574 }
575
576 /*========================= End of Function ========================*/
577
578 /*------------------------------------------------------------------*/
579 /* */
580 /* Name - decodeParm */
581 /* */
582 /* Function - Decode a parameter for the trace. */
583 /* */
584 /*------------------------------------------------------------------*/
585
586 static void
587 decodeParm(MonoType *type, void *curParm, int size)
588 {
589 guint32 simpleType;
590
591 if (type->byref) {
592 printf("[BYREF:%p], ", *((char **) curParm));
593 } else {
594 simpleType = mono_type_get_underlying_type(type)->type;
595 enum_parmtype:
596 switch (simpleType) {
597 case MONO_TYPE_I :
598 printf ("[INTPTR:%p], ", *((int **) curParm));
599 break;
600 case MONO_TYPE_U :
601 printf ("[UINTPTR:%p], ", *((int **) curParm));
602 break;
603 case MONO_TYPE_BOOLEAN :
604 printf ("[BOOL:%ld], ", *((gint64 *) curParm));
605 break;
606 case MONO_TYPE_CHAR :
607 printf ("[CHAR:%c], ", *((int *) curParm));
608 break;
609 case MONO_TYPE_I1 :
610 printf ("[INT1:%ld], ", *((gint64 *) curParm));
611 break;
612 case MONO_TYPE_I2 :
613 printf ("[INT2:%ld], ", *((gint64 *) curParm));
614 break;
615 case MONO_TYPE_I4 :
616 printf ("[INT4:%ld], ", *((gint64 *) curParm));
617 break;
618 case MONO_TYPE_U1 :
619 printf ("[UINT1:%lu], ", *((guint64 *) curParm));
620 break;
621 case MONO_TYPE_U2 :
622 printf ("[UINT2:%lu], ", *((guint64 *) curParm));
623 break;
624 case MONO_TYPE_U4 :
625 printf ("[UINT4:%lu], ", *((guint64 *) curParm));
626 break;
627 case MONO_TYPE_U8 :
628 printf ("[UINT8:%lu], ", *((guint64 *) curParm));
629 break;
630 case MONO_TYPE_STRING : {
631 MonoString *s = *((MonoString **) curParm);
632 if (s) {
633 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
634 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
635 } else {
636 printf("[STRING:null], ");
637 }
638 break;
639 }
640 case MONO_TYPE_CLASS :
641 case MONO_TYPE_OBJECT : {
642 MonoObject *obj = *((MonoObject **) curParm);
643 MonoClass *class;
644 if ((obj) && (obj->vtable)) {
645 printf("[CLASS/OBJ:");
646 class = obj->vtable->klass;
647 printf("%p [%p] ",obj,curParm);
648 if (class == mono_defaults.string_class) {
649 printf("[STRING:%p:%s]",
650 obj, mono_string_to_utf8 ((MonoString *) obj));
651 } else if (class == mono_defaults.int32_class) {
652 printf("[INT32:%p:%d]",
653 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
654 } else
655 printf("[%s.%s:%p]",
656 class->name_space, class->name, obj);
657 printf("], ");
658 } else {
659 printf("[OBJECT:null], ");
660 }
661 break;
662 }
663 case MONO_TYPE_PTR :
664 printf("[PTR:%p], ", *((gpointer **) (curParm)));
665 break;
666 case MONO_TYPE_FNPTR :
667 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
668 break;
669 case MONO_TYPE_ARRAY :
670 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
671 break;
672 case MONO_TYPE_SZARRAY :
673 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
674 break;
675 case MONO_TYPE_I8 :
676 printf("[INT8:%ld], ", *((gint64 *) (curParm)));
677 break;
678 case MONO_TYPE_R4 :
679 printf("[FLOAT4:%g], ", *((float *) (curParm)));
680 break;
681 case MONO_TYPE_R8 :
682 printf("[FLOAT8:%g], ", *((double *) (curParm)));
683 break;
684 case MONO_TYPE_VALUETYPE : {
685 int i;
686 MonoMarshalType *info;
687
688 if (type->data.klass->enumtype) {
689 simpleType = mono_class_enum_basetype (type->data.klass)->type;
690 printf("{VALUETYPE} - ");
691 goto enum_parmtype;
692 }
693
694 info = mono_marshal_load_type_info (type->data.klass);
695
696 if ((info->native_size == sizeof(float)) &&
697 (info->num_fields == 1) &&
698 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
699 printf("[FLOAT4:%f], ", *((float *) (curParm)));
700 break;
701 }
702
703 if ((info->native_size == sizeof(double)) &&
704 (info->num_fields == 1) &&
705 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
706 printf("[FLOAT8:%g], ", *((double *) (curParm)));
707 break;
708 }
709
710 printf("[VALUETYPE:");
711 for (i = 0; i < size; i++)
712 printf("%02x,", *((guint8 *)curParm+i));
713 printf("]");
714 break;
715 }
716 case MONO_TYPE_TYPEDBYREF: {
717 int i;
718 printf("[TYPEDBYREF:");
719 for (i = 0; i < size; i++)
720 printf("%02x,", *((guint8 *)curParm+i));
721 printf("]");
722 break;
723 }
724 default :
725 printf("[?? - %d], ",simpleType);
726 }
727 }
728 }
729
730 /*========================= End of Function ========================*/
731
732 /*------------------------------------------------------------------*/
733 /* */
734 /* Name - enter_method */
735 /* */
736 /* Function - Perform tracing of the entry to the current */
737 /* method. */
738 /* */
739 /*------------------------------------------------------------------*/
740
741 static void
742 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
743 {
744 int i, oParm = 0, iParm = 0;
745 MonoClass *class;
746 MonoObject *obj;
747 MonoMethodSignature *sig;
748 char *fname;
749 guint64 ip;
750 CallInfo *cinfo;
751 ArgInfo *ainfo;
752 void *curParm;
753
754 fname = mono_method_full_name (method, TRUE);
755 indent (1);
756 printf ("ENTER: %s ", fname);
757 g_free (fname);
758
759 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
760 printf ("ip: %p sp: %p - ", (gpointer) ip, sp);
761
762 if (rParm == NULL)
763 return;
764
765 sig = mono_method_signature (method);
766
767 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
768
769 if (cinfo->struct_ret) {
770 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
771 iParm = 1;
772 }
773
774 if (sig->hasthis) {
775 gpointer *this = (gpointer *) rParm->gr[iParm];
776 obj = (MonoObject *) this;
777 if (method->klass->valuetype) {
778 if (obj) {
779 printf("this:[value:%p:%016lx], ",
780 this, *((guint64 *)(this+sizeof(MonoObject))));
781 } else
782 printf ("this:[NULL], ");
783 } else {
784 if (obj) {
785 class = obj->vtable->klass;
786 if (class == mono_defaults.string_class) {
787 printf ("this:[STRING:%p:%s], ",
788 obj, mono_string_to_utf8 ((MonoString *)obj));
789 } else {
790 printf ("this:%p[%s.%s], ",
791 obj, class->name_space, class->name);
792 }
793 } else
794 printf ("this:NULL, ");
795 }
796 oParm++;
797 }
798
799 for (i = 0; i < sig->param_count; ++i) {
800 ainfo = &cinfo->args[i + oParm];
801 switch (ainfo->regtype) {
802 case RegTypeGeneral :
803 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
804 break;
805 case RegTypeFP :
806 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
807 break;
808 case RegTypeBase :
809 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
810 break;
811 case RegTypeStructByVal :
812 if (ainfo->reg != STK_BASE) {
813 int offset = sizeof(glong) - ainfo->size;
814 curParm = &(rParm->gr[ainfo->reg-2])+offset;
815 }
816 else
817 curParm = sp+ainfo->offset;
818
819 if (retFitsInReg (ainfo->vtsize))
820 decodeParm(sig->params[i],
821 curParm,
822 ainfo->size);
823 else
824 decodeParm(sig->params[i],
825 *((char **) curParm),
826 ainfo->vtsize);
827 break;
828 case RegTypeStructByAddr :
829 if (ainfo->reg != STK_BASE)
830 curParm = &(rParm->gr[ainfo->reg-2]);
831 else
832 curParm = sp+ainfo->offset;
833
834 decodeParm(sig->params[i],
835 *((char **) curParm),
836 ainfo->vtsize);
837 break;
838
839 default :
840 printf("???, ");
841 }
842 }
843 printf("\n");
844 g_free(cinfo);
845 }
846
847 /*========================= End of Function ========================*/
848
849 /*------------------------------------------------------------------*/
850 /* */
851 /* Name - leave_method */
852 /* */
853 /* Function - */
854 /* */
855 /*------------------------------------------------------------------*/
856
857 static void
858 leave_method (MonoMethod *method, ...)
859 {
860 MonoType *type;
861 char *fname;
862 guint64 ip;
863 va_list ap;
864
865 va_start(ap, method);
866
867 fname = mono_method_full_name (method, TRUE);
868 indent (-1);
869 printf ("LEAVE: %s", fname);
870 g_free (fname);
871
872 type = mono_method_signature (method)->ret;
873
874 handle_enum:
875 switch (type->type) {
876 case MONO_TYPE_VOID:
877 break;
878 case MONO_TYPE_BOOLEAN: {
879 int val = va_arg (ap, int);
880 if (val)
881 printf ("[TRUE:%d]", val);
882 else
883 printf ("[FALSE]");
884
885 break;
886 }
887 case MONO_TYPE_CHAR: {
888 int val = va_arg (ap, int);
889 printf ("[CHAR:%d]", val);
890 break;
891 }
892 case MONO_TYPE_I1: {
893 int val = va_arg (ap, int);
894 printf ("[INT1:%d]", val);
895 break;
896 }
897 case MONO_TYPE_U1: {
898 int val = va_arg (ap, int);
899 printf ("[UINT1:%d]", val);
900 break;
901 }
902 case MONO_TYPE_I2: {
903 int val = va_arg (ap, int);
904 printf ("[INT2:%d]", val);
905 break;
906 }
907 case MONO_TYPE_U2: {
908 int val = va_arg (ap, int);
909 printf ("[UINT2:%d]", val);
910 break;
911 }
912 case MONO_TYPE_I4: {
913 int val = va_arg (ap, int);
914 printf ("[INT4:%d]", val);
915 break;
916 }
917 case MONO_TYPE_U4: {
918 int val = va_arg (ap, int);
919 printf ("[UINT4:%d]", val);
920 break;
921 }
922 case MONO_TYPE_I: {
923 gint64 val = va_arg (ap, gint64);
924 printf ("[INT:%ld]", val);
925 printf("]");
926 break;
927 }
928 case MONO_TYPE_U: {
929 gint64 val = va_arg (ap, gint64);
930 printf ("[UINT:%lu]", val);
931 printf("]");
932 break;
933 }
934 case MONO_TYPE_STRING: {
935 MonoString *s = va_arg (ap, MonoString *);
936 ;
937 if (s) {
938 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
939 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
940 } else
941 printf ("[STRING:null], ");
942 break;
943 }
944 case MONO_TYPE_CLASS:
945 case MONO_TYPE_OBJECT: {
946 MonoObject *o = va_arg (ap, MonoObject *);
947
948 if ((o) && (o->vtable)) {
949 if (o->vtable->klass == mono_defaults.boolean_class) {
950 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
951 } else if (o->vtable->klass == mono_defaults.int32_class) {
952 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
953 } else if (o->vtable->klass == mono_defaults.int64_class) {
954 printf ("[INT64:%p:%ld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
955 } else
956 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
957 } else
958 printf ("[OBJECT:%p]", o);
959
960 break;
961 }
962 case MONO_TYPE_PTR:
963 case MONO_TYPE_FNPTR:
964 case MONO_TYPE_ARRAY:
965 case MONO_TYPE_SZARRAY: {
966 gpointer p = va_arg (ap, gpointer);
967 printf ("[result=%p]", p);
968 break;
969 }
970 case MONO_TYPE_I8: {
971 gint64 l = va_arg (ap, gint64);
972 printf ("[LONG:%ld]", l);
973 break;
974 }
975 case MONO_TYPE_U8: {
976 guint64 l = va_arg (ap, guint64);
977 printf ("[ULONG:%lu]", l);
978 break;
979 }
980 case MONO_TYPE_R4: {
981 double f = va_arg (ap, double);
982 printf ("[FLOAT4:%g]\n", f);
983 break;
984 }
985 case MONO_TYPE_R8: {
986 double f = va_arg (ap, double);
987 printf ("[FLOAT8:%g]\n", f);
988 break;
989 }
990 case MONO_TYPE_VALUETYPE: {
991 MonoMarshalType *info;
992 if (type->data.klass->enumtype) {
993 type = mono_class_enum_basetype (type->data.klass);
994 goto handle_enum;
995 } else {
996 int size, align;
997
998 info = mono_marshal_load_type_info (type->data.klass);
999
1000 if ((info->native_size == sizeof(float)) &&
1001 (info->num_fields == 1) &&
1002 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1003 double f = va_arg (ap, double);
1004 printf("[FLOAT4:%g]\n", (double) f);
1005 break;
1006 }
1007
1008 if ((info->native_size == sizeof(double)) &&
1009 (info->num_fields == 1) &&
1010 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1011 double f = va_arg (ap, double);
1012 printf("[FLOAT8:%g]\n", f);
1013 break;
1014 }
1015
1016 size = mono_type_size (type, &align);
1017 switch (size) {
1018 case 1: {
1019 guint32 p = va_arg (ap, guint32);
1020 printf ("[%02x]\n",p);
1021 break;
1022 }
1023 case 2: {
1024 guint32 p = va_arg (ap, guint32);
1025 printf ("[%04x]\n",p);
1026 break;
1027 }
1028 case 4: {
1029 guint32 p = va_arg (ap, guint32);
1030 printf ("[%08x]\n",p);
1031 break;
1032 }
1033 case 8: {
1034 guint64 p = va_arg (ap, guint64);
1035 printf ("[%016lx]\n",p);
1036 break;
1037 }
1038 default: {
1039 gpointer p = va_arg (ap, gpointer);
1040 printf ("[VALUETYPE] %p\n",p);
1041 }
1042 }
1043 }
1044 break;
1045 }
1046 case MONO_TYPE_TYPEDBYREF: {
1047 guint8 *p = va_arg (ap, gpointer);
1048 int j, size, align;
1049 size = mono_type_size (type, &align);
1050 switch (size) {
1051 case 1:
1052 case 2:
1053 case 4:
1054 case 8:
1055 printf ("[");
1056 for (j = 0; p && j < size; j++)
1057 printf ("%02x,", p [j]);
1058 printf ("]\n");
1059 break;
1060 default:
1061 printf ("[TYPEDBYREF]\n");
1062 }
1063 }
1064 break;
1065 default:
1066 printf ("(unknown return type %x)",
1067 mono_method_signature (method)->ret->type);
1068 }
1069
1070 ip = ((gint64) __builtin_return_address (0));
1071 printf (" ip: %p\n", (gpointer) ip);
1072 }
1073
1074 /*========================= End of Function ========================*/
1075
1076 /*------------------------------------------------------------------*/
1077 /* */
1078 /* Name - catch_SIGILL */
1079 /* */
1080 /* Function - Catch SIGILL as a result of testing for long */
1081 /* displacement facility. */
1082 /* */
1083 /*------------------------------------------------------------------*/
1084
1085 void
1086 catch_SIGILL(int sigNo, siginfo_t *info, void *act) {
1087
1088 has_ld = 0;
1089
1090 }
1091
1092 /*========================= End of Function ========================*/
1093
1094 /*------------------------------------------------------------------*/
1095 /* */
1096 /* Name - mono_arch_cpu_init */
1097 /* */
1098 /* Function - Perform CPU specific initialization to execute */
1099 /* managed code. */
1100 /* */
1101 /*------------------------------------------------------------------*/
1102
1103 void
1104 mono_arch_cpu_init (void)
1105 {
1106 struct sigaction sa,
1107 *oldSa = NULL;
1108 guint mode = 1;
1109
1110 /*--------------------------------------*/
1111 /* Set default rounding mode for FP */
1112 /*--------------------------------------*/
1113 __asm__ ("SRNM\t%0\n\t"
1114 : : "m" (mode));
1115
1116 /*--------------------------------------*/
1117 /* Determine if we have long displace- */
1118 /* ment facility on this processor */
1119 /*--------------------------------------*/
1120 sa.sa_sigaction = catch_SIGILL;
1121 sigemptyset (&sa.sa_mask);
1122 sa.sa_flags = SA_SIGINFO;
1123
1124 sigaction (SIGILL, &sa, oldSa);
1125
1126 /*--------------------------------------*/
1127 /* We test by executing the STY inst */
1128 /*--------------------------------------*/
1129 __asm__ ("LGHI\t0,1\n\t"
1130 "LA\t1,%0\n\t"
1131 ".byte\t0xe3,0x00,0x10,0x00,0x00,0x50\n\t"
1132 : "=m" (has_ld) : : "0", "1");
1133
1134 sigaction (SIGILL, oldSa, NULL);
1135 }
1136
1137 /*========================= End of Function ========================*/
1138
1139
1140 /*
1141 * Initialize architecture specific code.
1142 */
1143 void
1144 mono_arch_init (void)
1145 {
1146 }
1147
1148 /*
1149 * Cleanup architecture specific code.
1150 */
1151 void
1152 mono_arch_cleanup (void)
1153 {
1154 }
1155
1156 /*------------------------------------------------------------------*/
1157 /* */
1158 /* Name - mono_arch_cpu_optimizazions */
1159 /* */
1160 /* Function - Returns the optimizations supported on this CPU */
1161 /* */
1162 /*------------------------------------------------------------------*/
1163
1164 guint32
1165 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1166 {
1167 guint32 opts = 0;
1168
1169 /*----------------------------------------------------------*/
1170 /* No s390-specific optimizations yet */
1171 /*----------------------------------------------------------*/
1172 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1173 // *exclude_mask = MONO_OPT_INLINE;
1174 return opts;
1175 }
1176
1177 /*========================= End of Function ========================*/
1178
1179 /*------------------------------------------------------------------*/
1180 /* */
1181 /* Name - */
1182 /* */
1183 /* Function - */
1184 /* */
1185 /*------------------------------------------------------------------*/
1186
1187 static gboolean
1188 is_regsize_var (MonoType *t) {
1189 if (t->byref)
1190 return TRUE;
1191 switch (mono_type_get_underlying_type (t)->type) {
1192 case MONO_TYPE_I4:
1193 case MONO_TYPE_U4:
1194 case MONO_TYPE_I:
1195 case MONO_TYPE_I8:
1196 case MONO_TYPE_U8:
1197 case MONO_TYPE_U:
1198 case MONO_TYPE_PTR:
1199 case MONO_TYPE_FNPTR:
1200 return TRUE;
1201 case MONO_TYPE_OBJECT:
1202 case MONO_TYPE_STRING:
1203 case MONO_TYPE_CLASS:
1204 case MONO_TYPE_SZARRAY:
1205 case MONO_TYPE_ARRAY:
1206 return FALSE;
1207 case MONO_TYPE_VALUETYPE:
1208 if (t->data.klass->enumtype)
1209 return is_regsize_var (mono_class_enum_basetype (t->data.klass));
1210 return FALSE;
1211 }
1212 return FALSE;
1213 }
1214
1215 /*========================= End of Function ========================*/
1216
1217 /*------------------------------------------------------------------*/
1218 /* */
1219 /* Name - mono_arch_get_allocatable_int_vars */
1220 /* */
1221 /* Function - */
1222 /* */
1223 /*------------------------------------------------------------------*/
1224
1225 GList *
1226 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1227 {
1228 GList *vars = NULL;
1229 int i;
1230
1231 for (i = 0; i < cfg->num_varinfo; i++) {
1232 MonoInst *ins = cfg->varinfo [i];
1233 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1234
1235 /* unused vars */
1236 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1237 continue;
1238
1239 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1240 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1241 continue;
1242
1243 /* we can only allocate 32 bit values */
1244 if (is_regsize_var (ins->inst_vtype)) {
1245 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1246 g_assert (i == vmv->idx);
1247 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1248 }
1249 }
1250
1251 return vars;
1252 }
1253
1254 /*========================= End of Function ========================*/
1255
1256 /*------------------------------------------------------------------*/
1257 /* */
1258 /* Name - mono_arch_global_int_regs */
1259 /* */
1260 /* Function - Return a list of usable integer registers. */
1261 /* */
1262 /*------------------------------------------------------------------*/
1263
1264 GList *
1265 mono_arch_get_global_int_regs (MonoCompile *cfg)
1266 {
1267 GList *regs = NULL;
1268 MonoMethodHeader *header;
1269 int i, top = 13;
1270
1271 header = mono_method_get_header (cfg->method);
1272 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1273 cfg->frame_reg = s390_r11;
1274
1275
1276 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1277 top = 12;
1278 for (i = 8; i < top; ++i) {
1279 if (cfg->frame_reg != i)
1280 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1281 }
1282
1283 return regs;
1284 }
1285
1286 /*========================= End of Function ========================*/
1287
1288 /*------------------------------------------------------------------*/
1289 /* */
1290 /* Name - mono_arch_flush_icache */
1291 /* */
1292 /* Function - Flush the CPU icache. */
1293 /* */
1294 /*------------------------------------------------------------------*/
1295
1296 void
1297 mono_arch_flush_icache (guint8 *code, gint size)
1298 {
1299 }
1300
1301 /*========================= End of Function ========================*/
1302
1303 /*------------------------------------------------------------------*/
1304 /* */
1305 /* Name - add_general */
1306 /* */
1307 /* Function - Determine code and stack size incremements for a */
1308 /* parameter. */
1309 /* */
1310 /*------------------------------------------------------------------*/
1311
1312 static void inline
1313 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1314 {
1315 if (*gr > S390_LAST_ARG_REG) {
1316 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1317 ainfo->offset = sz->stack_size;
1318 ainfo->reg = STK_BASE;
1319 ainfo->regtype = RegTypeBase;
1320 sz->stack_size += sizeof(long);
1321 sz->local_size += sizeof(long);
1322 sz->offStruct += sizeof(long);
1323 sz->code_size += 12;
1324 } else {
1325 ainfo->reg = *gr;
1326 sz->code_size += 8;
1327 }
1328 (*gr) ++;
1329 }
1330
1331 /*========================= End of Function ========================*/
1332
1333 /*------------------------------------------------------------------*/
1334 /* */
1335 /* Name - add_stackParm */
1336 /* */
1337 /* Function - Determine code and stack size incremements for a */
1338 /* parameter. */
1339 /* */
1340 /*------------------------------------------------------------------*/
1341
1342 static void inline
1343 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1344 {
1345 if (*gr > S390_LAST_ARG_REG) {
1346 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1347 ainfo->reg = STK_BASE;
1348 ainfo->offset = sz->stack_size;
1349 ainfo->regtype = RegTypeStructByAddrOnStack;
1350 sz->stack_size += sizeof (gpointer);
1351 sz->parm_size += sizeof(gpointer);
1352 sz->offStruct += sizeof(gpointer);
1353 } else {
1354 ainfo->reg = *gr;
1355 ainfo->offset = sz->stack_size;
1356 ainfo->regtype = RegTypeStructByAddr;
1357 }
1358 (*gr) ++;
1359 ainfo->offparm = sz->offset;
1360 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1361 ainfo->size = size;
1362 ainfo->vtsize = size;
1363 sz->parm_size += size;
1364 }
1365
1366 /*========================= End of Function ========================*/
1367
1368 /*------------------------------------------------------------------*/
1369 /* */
1370 /* Name - add_float */
1371 /* */
1372 /* Function - Determine code and stack size incremements for a */
1373 /* float parameter. */
1374 /* */
1375 /*------------------------------------------------------------------*/
1376
1377 static void inline
1378 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1379 {
1380 if ((*fr) <= S390_LAST_FPARG_REG) {
1381 ainfo->regtype = RegTypeFP;
1382 ainfo->reg = *fr;
1383 sz->code_size += 4;
1384 (*fr) += 2;
1385 }
1386 else {
1387 ainfo->offset = sz->stack_size;
1388 ainfo->reg = STK_BASE;
1389 ainfo->regtype = RegTypeBase;
1390 sz->code_size += 4;
1391 sz->stack_size += sizeof(double);
1392 sz->local_size += sizeof(double);
1393 sz->offStruct += sizeof(double);
1394 }
1395 }
1396
1397 /*========================= End of Function ========================*/
1398
1399 /*------------------------------------------------------------------*/
1400 /* */
1401 /* Name - get_call_info */
1402 /* */
1403 /* Function - Determine the amount of space required for code */
1404 /* and stack. In addition determine starting points */
1405 /* for stack-based parameters, and area for struct- */
1406 /* ures being returned on the stack. */
1407 /* */
1408 /*------------------------------------------------------------------*/
1409
1410 static CallInfo *
1411 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1412 {
1413 guint i, fr, gr, size;
1414 int nParm = sig->hasthis + sig->param_count;
1415 MonoType *ret_type;
1416 guint32 simpletype, align;
1417 CallInfo *cinfo;
1418 size_data *sz;
1419 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1420
1421 if (mp)
1422 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1423 else
1424 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1425
1426 fr = 0;
1427 gr = s390_r2;
1428 nParm = 0;
1429 cinfo->struct_ret = 0;
1430 sz = &cinfo->sz;
1431 sz->retStruct = 0;
1432 sz->offset = 0;
1433 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1434 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1435 sz->code_size = 0;
1436 sz->parm_size = 0;
1437 sz->local_size = 0;
1438
1439 /*----------------------------------------------------------*/
1440 /* We determine the size of the return code/stack in case we*/
1441 /* need to reserve a register to be used to address a stack */
1442 /* area that the callee will use. */
1443 /*----------------------------------------------------------*/
1444
1445 ret_type = mono_type_get_underlying_type (sig->ret);
1446 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1447 simpletype = ret_type->type;
1448 enum_retvalue:
1449 switch (simpletype) {
1450 case MONO_TYPE_BOOLEAN:
1451 case MONO_TYPE_I1:
1452 case MONO_TYPE_U1:
1453 case MONO_TYPE_I2:
1454 case MONO_TYPE_U2:
1455 case MONO_TYPE_CHAR:
1456 case MONO_TYPE_I4:
1457 case MONO_TYPE_U4:
1458 case MONO_TYPE_I:
1459 case MONO_TYPE_U:
1460 case MONO_TYPE_CLASS:
1461 case MONO_TYPE_OBJECT:
1462 case MONO_TYPE_SZARRAY:
1463 case MONO_TYPE_ARRAY:
1464 case MONO_TYPE_PTR:
1465 case MONO_TYPE_FNPTR:
1466 case MONO_TYPE_STRING:
1467 cinfo->ret.reg = s390_r2;
1468 sz->code_size += 4;
1469 break;
1470 case MONO_TYPE_R4:
1471 case MONO_TYPE_R8:
1472 cinfo->ret.reg = s390_f0;
1473 sz->code_size += 4;
1474 break;
1475 case MONO_TYPE_I8:
1476 case MONO_TYPE_U8:
1477 cinfo->ret.reg = s390_r2;
1478 sz->code_size += 4;
1479 break;
1480 case MONO_TYPE_GENERICINST:
1481 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1482 cinfo->ret.reg = s390_r2;
1483 sz->code_size += 4;
1484 break;
1485 }
1486 /* Fall through */
1487 case MONO_TYPE_VALUETYPE: {
1488 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1489 if (klass->enumtype) {
1490 simpletype = mono_class_enum_basetype (klass)->type;
1491 goto enum_retvalue;
1492 }
1493 if (sig->pinvoke)
1494 size = mono_class_native_size (klass, &align);
1495 else
1496 size = mono_class_value_size (klass, &align);
1497
1498 cinfo->ret.reg = s390_r2;
1499 cinfo->struct_ret = 1;
1500 cinfo->ret.size = size;
1501 cinfo->ret.vtsize = size;
1502 gr++;
1503 break;
1504 }
1505 case MONO_TYPE_TYPEDBYREF:
1506 size = sizeof (MonoTypedRef);
1507 cinfo->ret.reg = s390_r2;
1508 cinfo->struct_ret = 1;
1509 cinfo->ret.size = size;
1510 cinfo->ret.vtsize = size;
1511 gr++;
1512 break;
1513 case MONO_TYPE_VOID:
1514 break;
1515 default:
1516 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1517 }
1518
1519 if (sig->hasthis) {
1520 cinfo->args[nParm].size = sizeof(gpointer);
1521 add_general (&gr, sz, cinfo->args+nParm);
1522 nParm++;
1523 }
1524
1525 /*----------------------------------------------------------*/
1526 /* We determine the size of the parameter code and stack */
1527 /* requirements by checking the types and sizes of the */
1528 /* parameters. */
1529 /*----------------------------------------------------------*/
1530
1531 for (i = 0; i < sig->param_count; ++i) {
1532 MonoType *ptype;
1533
1534 /*--------------------------------------------------*/
1535 /* Handle vararg type calls. All args are put on */
1536 /* the stack. */
1537 /*--------------------------------------------------*/
1538 if ((sig->call_convention == MONO_CALL_VARARG) &&
1539 (i == sig->sentinelpos)) {
1540 gr = S390_LAST_ARG_REG + 1;
1541 add_general (&gr, sz, &cinfo->sigCookie);
1542 }
1543
1544 if (sig->params [i]->byref) {
1545 add_general (&gr, sz, cinfo->args+nParm);
1546 cinfo->args[nParm].size = sizeof(gpointer);
1547 nParm++;
1548 continue;
1549 }
1550
1551 ptype = mono_type_get_underlying_type (sig->params [i]);
1552 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1553 simpletype = ptype->type;
1554 cinfo->args[nParm].type = simpletype;
1555 switch (simpletype) {
1556 case MONO_TYPE_BOOLEAN:
1557 case MONO_TYPE_I1:
1558 case MONO_TYPE_U1:
1559 cinfo->args[nParm].size = sizeof(char);
1560 add_general (&gr, sz, cinfo->args+nParm);
1561 nParm++;
1562 break;
1563 case MONO_TYPE_I2:
1564 case MONO_TYPE_U2:
1565 case MONO_TYPE_CHAR:
1566 cinfo->args[nParm].size = sizeof(short);
1567 add_general (&gr, sz, cinfo->args+nParm);
1568 nParm++;
1569 break;
1570 case MONO_TYPE_I4:
1571 case MONO_TYPE_U4:
1572 cinfo->args[nParm].size = sizeof(int);
1573 add_general (&gr, sz, cinfo->args+nParm);
1574 nParm++;
1575 break;
1576 case MONO_TYPE_I:
1577 case MONO_TYPE_U:
1578 case MONO_TYPE_PTR:
1579 case MONO_TYPE_FNPTR:
1580 case MONO_TYPE_CLASS:
1581 case MONO_TYPE_OBJECT:
1582 case MONO_TYPE_STRING:
1583 case MONO_TYPE_SZARRAY:
1584 case MONO_TYPE_ARRAY:
1585 cinfo->args[nParm].size = sizeof(gpointer);
1586 add_general (&gr, sz, cinfo->args+nParm);
1587 nParm++;
1588 break;
1589 case MONO_TYPE_I8:
1590 case MONO_TYPE_U8:
1591 cinfo->args[nParm].size = sizeof(long long);
1592 add_general (&gr, sz, cinfo->args+nParm);
1593 nParm++;
1594 break;
1595 case MONO_TYPE_R4:
1596 cinfo->args[nParm].size = sizeof(float);
1597 add_float (&fr, sz, cinfo->args+nParm);
1598 nParm++;
1599 break;
1600 case MONO_TYPE_R8:
1601 cinfo->args[nParm].size = sizeof(double);
1602 add_float (&fr, sz, cinfo->args+nParm);
1603 nParm++;
1604 break;
1605 case MONO_TYPE_GENERICINST:
1606 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1607 cinfo->args[nParm].size = sizeof(gpointer);
1608 add_general (&gr, sz, cinfo->args+nParm);
1609 nParm++;
1610 break;
1611 }
1612 /* Fall through */
1613 case MONO_TYPE_VALUETYPE: {
1614 MonoMarshalType *info;
1615 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1616 if (sig->pinvoke)
1617 size = mono_class_native_size (klass, &align);
1618 else
1619 size = mono_class_value_size (klass, &align);
1620
1621 info = mono_marshal_load_type_info (klass);
1622
1623 if ((info->native_size == sizeof(float)) &&
1624 (info->num_fields == 1) &&
1625 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1626 cinfo->args[nParm].size = sizeof(float);
1627 add_float(&fr, sz, cinfo->args+nParm);
1628 nParm ++;
1629 break;
1630 }
1631
1632 if ((info->native_size == sizeof(double)) &&
1633 (info->num_fields == 1) &&
1634 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1635 cinfo->args[nParm].size = sizeof(double);
1636 add_float(&fr, sz, cinfo->args+nParm);
1637 nParm ++;
1638 break;
1639 }
1640
1641 cinfo->args[nParm].vtsize = 0;
1642 cinfo->args[nParm].size = 0;
1643
1644 switch (size) {
1645 /*----------------------------------*/
1646 /* On S/390, structures of size 1, */
1647 /* 2, 4, and 8 bytes are passed in */
1648 /* (a) register(s). */
1649 /*----------------------------------*/
1650 case 0:
1651 case 1:
1652 case 2:
1653 case 4:
1654 case 8:
1655 add_general(&gr, sz, cinfo->args+nParm);
1656 cinfo->args[nParm].size = size;
1657 cinfo->args[nParm].regtype = RegTypeStructByVal;
1658 nParm++;
1659 sz->local_size += sizeof(long);
1660 break;
1661 default:
1662 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1663 nParm++;
1664 }
1665 }
1666 break;
1667 case MONO_TYPE_TYPEDBYREF: {
1668 int size = sizeof (MonoTypedRef);
1669
1670 cinfo->args[nParm].vtsize = 0;
1671 cinfo->args[nParm].size = 0;
1672
1673 switch (size) {
1674 /*----------------------------------*/
1675 /* On S/390, structures of size 1, */
1676 /* 2, 4, and 8 bytes are passed in */
1677 /* (a) register(s). */
1678 /*----------------------------------*/
1679 case 0:
1680 case 1:
1681 case 2:
1682 case 4:
1683 case 8:
1684 add_general(&gr, sz, cinfo->args+nParm);
1685 cinfo->args[nParm].size = size;
1686 cinfo->args[nParm].regtype = RegTypeStructByVal;
1687 nParm++;
1688 sz->local_size += sizeof(long);
1689 break;
1690 default:
1691 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1692 nParm++;
1693 }
1694 }
1695 break;
1696 default:
1697 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1698 }
1699 }
1700
1701 /*----------------------------------------------------------*/
1702 /* Handle the case where there are no implicit arguments */
1703 /*----------------------------------------------------------*/
1704 if ((sig->call_convention == MONO_CALL_VARARG) &&
1705 (sig->param_count == sig->sentinelpos)) {
1706 gr = S390_LAST_ARG_REG + 1;
1707 add_general (&gr, sz, &cinfo->sigCookie);
1708 }
1709
1710 /*----------------------------------------------------------*/
1711 /* If we are passing a structure back then if it won't be */
1712 /* in a register(s) then we make room at the end of the */
1713 /* parameters that may have been placed on the stack */
1714 /*----------------------------------------------------------*/
1715 if (cinfo->struct_ret) {
1716 cinfo->ret.offset = sz->stack_size;
1717 switch (cinfo->ret.size) {
1718 case 0:
1719 case 1:
1720 case 2:
1721 case 4:
1722 case 8:
1723 break;
1724 default:
1725 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1726 }
1727 }
1728
1729 cinfo->lastgr = gr;
1730 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1731 sz->offset;
1732 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1733
1734 return (cinfo);
1735 }
1736
1737 /*========================= End of Function ========================*/
1738
1739 /*------------------------------------------------------------------*/
1740 /* */
1741 /* Name - mono_arch_allocate_vars */
1742 /* */
1743 /* Function - Set var information according to the calling */
1744 /* convention for S/390. The local var stuff should */
1745 /* most likely be split in another method. */
1746 /* */
1747 /* Parameter - @m - Compile unit. */
1748 /* */
1749 /*------------------------------------------------------------------*/
1750
1751 void
1752 mono_arch_allocate_vars (MonoCompile *cfg)
1753 {
1754 MonoMethodSignature *sig;
1755 MonoMethodHeader *header;
1756 MonoInst *inst;
1757 CallInfo *cinfo;
1758 int iParm, iVar, offset, align, size, curinst;
1759 int frame_reg = STK_BASE;
1760 int sArg, eArg;
1761
1762 header = mono_method_get_header (cfg->method);
1763
1764 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1765
1766 /*---------------------------------------------------------*/
1767 /* We use the frame register also for any method that has */
1768 /* filter clauses. This way, when the handlers are called, */
1769 /* the code will reference local variables using the frame */
1770 /* reg instead of the stack pointer: if we had to restore */
1771 /* the stack pointer, we'd corrupt the method frames that */
1772 /* are already on the stack (since filters get called */
1773 /* before stack unwinding happens) when the filter code */
1774 /* would call any method. */
1775 /*---------------------------------------------------------*/
1776 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1777 frame_reg = s390_r11;
1778
1779 cfg->frame_reg = frame_reg;
1780
1781 cfg->arch.bkchain_reg = -1;
1782
1783 if (frame_reg != STK_BASE)
1784 cfg->used_int_regs |= 1 << frame_reg;
1785
1786 sig = mono_method_signature (cfg->method);
1787
1788 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1789
1790 if (!cinfo->struct_ret) {
1791 switch (mono_type_get_underlying_type (sig->ret)->type) {
1792 case MONO_TYPE_VOID:
1793 break;
1794 default:
1795 cfg->ret->opcode = OP_REGVAR;
1796 cfg->ret->dreg = s390_r2;
1797 break;
1798 }
1799 }
1800
1801 /*--------------------------------------------------------------*/
1802 /* local vars are at a positive offset from the stack pointer */
1803 /* also note that if the function uses alloca, we use s390_r11 */
1804 /* to point at the local variables. */
1805 /* add parameter area size for called functions */
1806 /*--------------------------------------------------------------*/
1807 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1808 cfg->sig_cookie = 0;
1809
1810 if (cinfo->struct_ret) {
1811 inst = cfg->vret_addr;
1812 offset = S390_ALIGN(offset, sizeof(gpointer));
1813 inst->inst_offset = offset;
1814 inst->opcode = OP_REGOFFSET;
1815 inst->inst_basereg = frame_reg;
1816 offset += sizeof(gpointer);
1817 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1818 printf ("vret_addr =");
1819 mono_print_ins (cfg->vret_addr);
1820 }
1821 }
1822
1823 if (sig->hasthis) {
1824 inst = cfg->args [0];
1825 if (inst->opcode != OP_REGVAR) {
1826 inst->opcode = OP_REGOFFSET;
1827 inst->inst_basereg = frame_reg;
1828 offset = S390_ALIGN(offset, sizeof(gpointer));
1829 inst->inst_offset = offset;
1830 offset += sizeof (gpointer);
1831 }
1832 curinst = sArg = 1;
1833 } else {
1834 curinst = sArg = 0;
1835 }
1836
1837 eArg = sig->param_count + sArg;
1838
1839 if (sig->call_convention == MONO_CALL_VARARG)
1840 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1841
1842 for (iParm = sArg; iParm < eArg; ++iParm) {
1843 inst = cfg->args [curinst];
1844 if (inst->opcode != OP_REGVAR) {
1845 switch (cinfo->args[iParm].regtype) {
1846 case RegTypeStructByAddr : {
1847 MonoInst *indir;
1848
1849 size = sizeof (gpointer);
1850
1851 inst->opcode = OP_REGOFFSET;
1852 inst->inst_basereg = frame_reg;
1853 offset = S390_ALIGN (offset, sizeof (gpointer));
1854 inst->inst_offset = offset;
1855
1856 /* Add a level of indirection */
1857 MONO_INST_NEW (cfg, indir, 0);
1858 *indir = *inst;
1859 inst->opcode = OP_VTARG_ADDR;
1860 inst->inst_left = indir;
1861 }
1862 break;
1863 case RegTypeStructByAddrOnStack : {
1864 MonoInst *indir;
1865
1866 size = sizeof (gpointer);
1867
1868 /* Similar to the == STK_BASE case below */
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->dreg = mono_alloc_preg (cfg);
1874 inst->inst_basereg = cfg->arch.bkchain_reg;
1875 inst->inst_offset = cinfo->args [iParm].offset;
1876
1877 /* Add a level of indirection */
1878 MONO_INST_NEW (cfg, indir, 0);
1879 *indir = *inst;
1880 inst->opcode = OP_VTARG_ADDR;
1881 inst->inst_left = indir;
1882 break;
1883 }
1884 case RegTypeStructByVal :
1885 size = cinfo->args[iParm].size;
1886 offset = S390_ALIGN(offset, size);
1887 inst->opcode = OP_REGOFFSET;
1888 inst->inst_basereg = frame_reg;
1889 inst->inst_offset = offset;
1890 break;
1891 default :
1892 if (cinfo->args [iParm].reg == STK_BASE) {
1893 /*
1894 * These arguments are in the previous frame, so we can't
1895 * compute their offset from the current frame pointer right
1896 * now, since cfg->stack_offset is not yet known, so dedicate a
1897 * register holding the previous frame pointer.
1898 */
1899 cfg->arch.bkchain_reg = s390_r12;
1900 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1901
1902 inst->opcode = OP_REGOFFSET;
1903 inst->inst_basereg = cfg->arch.bkchain_reg;
1904 size = (cinfo->args[iParm].size < 8
1905 ? 8 - cinfo->args[iParm].size
1906 : 0);
1907 inst->inst_offset = cinfo->args [iParm].offset + size;
1908 size = sizeof (long);
1909 } else {
1910 inst->opcode = OP_REGOFFSET;
1911 inst->inst_basereg = frame_reg;
1912 size = (cinfo->args[iParm].size < 8
1913 ? sizeof(int)
1914 : sizeof(long));
1915 offset = S390_ALIGN(offset, size);
1916 inst->inst_offset = offset;
1917 }
1918 break;
1919 }
1920 if ((sig->call_convention == MONO_CALL_VARARG) &&
1921 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1922 (iParm < sig->sentinelpos))
1923 cfg->sig_cookie += size;
1924
1925 offset += size;
1926 }
1927 curinst++;
1928 }
1929
1930 curinst = cfg->locals_start;
1931 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1932 inst = cfg->varinfo [iVar];
1933 if ((inst->flags & MONO_INST_IS_DEAD) ||
1934 (inst->opcode == OP_REGVAR))
1935 continue;
1936
1937 /*--------------------------------------------------*/
1938 /* inst->backend.is_pinvoke indicates native sized value types, */
1939 /* this is used by the pinvoke wrappers when they */
1940 /* call functions returning structure */
1941 /*--------------------------------------------------*/
1942 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1943 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype),
1944 (guint32 *) &align);
1945 else
1946 size = mono_type_size (inst->inst_vtype, &align);
1947
1948 offset = S390_ALIGN(offset, align);
1949 inst->inst_offset = offset;
1950 inst->opcode = OP_REGOFFSET;
1951 inst->inst_basereg = frame_reg;
1952 offset += size;
1953 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
1954 iVar, inst->inst_offset, size));
1955 }
1956
1957 /*------------------------------------------------------*/
1958 /* Allow space for the trace method stack area if needed*/
1959 /*------------------------------------------------------*/
1960 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
1961 offset += S390_TRACE_STACK_SIZE;
1962
1963 /*------------------------------------------------------*/
1964 /* Reserve space to save LMF and caller saved registers */
1965 /*------------------------------------------------------*/
1966 if (cfg->method->save_lmf)
1967 offset += sizeof (MonoLMF);
1968
1969 /*------------------------------------------------------*/
1970 /* align the offset */
1971 /*------------------------------------------------------*/
1972 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1973
1974 }
1975
1976 /*========================= End of Function ========================*/
1977
1978 /*------------------------------------------------------------------*/
1979 /* */
1980 /* Name - mono_arch_create_vars */
1981 /*------------------------------------------------------------------*/
1982
1983 void
1984 mono_arch_create_vars (MonoCompile *cfg)
1985 {
1986 MonoMethodSignature *sig;
1987 CallInfo *cinfo;
1988
1989 sig = mono_method_signature (cfg->method);
1990
1991 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1992
1993 if (cinfo->struct_ret) {
1994 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
1995 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1996 printf ("vret_addr = ");
1997 mono_print_ins (cfg->vret_addr);
1998 }
1999 }
2000 }
2001
2002 /*========================= End of Function ========================*/
2003
2004 static void
2005 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
2006 {
2007 MonoInst *ins;
2008
2009 switch (storage) {
2010 case RegTypeGeneral:
2011 MONO_INST_NEW (cfg, ins, OP_MOVE);
2012 ins->dreg = mono_alloc_ireg (cfg);
2013 ins->sreg1 = tree->dreg;
2014 MONO_ADD_INS (cfg->cbb, ins);
2015 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
2016 break;
2017 case RegTypeFP:
2018 MONO_INST_NEW (cfg, ins, OP_FMOVE);
2019 ins->dreg = mono_alloc_freg (cfg);
2020 ins->sreg1 = tree->dreg;
2021 MONO_ADD_INS (cfg->cbb, ins);
2022 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2023 break;
2024 case RegTypeFPR4:
2025 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
2026 ins->dreg = mono_alloc_freg (cfg);
2027 ins->sreg1 = tree->dreg;
2028 MONO_ADD_INS (cfg->cbb, ins);
2029 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2030 break;
2031 default:
2032 g_assert_not_reached ();
2033 }
2034 }
2035
2036 static void
2037 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2038 {
2039 MonoMethodSignature *tmpSig;
2040 MonoInst *sig_arg;
2041
2042 cfg->disable_aot = TRUE;
2043
2044 /*----------------------------------------------------------*/
2045 /* mono_ArgIterator_Setup assumes the signature cookie is */
2046 /* passed first and all the arguments which were before it */
2047 /* passed on the stack after the signature. So compensate */
2048 /* by passing a different signature. */
2049 /*----------------------------------------------------------*/
2050 tmpSig = mono_metadata_signature_dup (call->signature);
2051 tmpSig->param_count -= call->signature->sentinelpos;
2052 tmpSig->sentinelpos = 0;
2053 if (tmpSig->param_count > 0)
2054 memcpy (tmpSig->params,
2055 call->signature->params + call->signature->sentinelpos,
2056 tmpSig->param_count * sizeof(MonoType *));
2057
2058 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2059 sig_arg->dreg = mono_alloc_ireg (cfg);
2060 sig_arg->inst_p0 = tmpSig;
2061 MONO_ADD_INS (cfg->cbb, sig_arg);
2062
2063 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2064 cinfo->sigCookie.offset, sig_arg->dreg);
2065 }
2066
2067 /*------------------------------------------------------------------*/
2068 /* */
2069 /* Name - mono_arch_emit_call */
2070 /* */
2071 /*------------------------------------------------------------------*/
2072
2073 void
2074 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2075 {
2076 MonoInst *in;
2077 MonoMethodSignature *sig;
2078 MonoInst *ins;
2079 int i, n, lParamArea;
2080 CallInfo *cinfo;
2081 ArgInfo *ainfo = NULL;
2082 int stackSize;
2083
2084 sig = call->signature;
2085 n = sig->param_count + sig->hasthis;
2086 DEBUG (g_print ("Call requires: %d parameters\n",n));
2087
2088 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2089
2090 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2091 call->stack_usage = MAX(stackSize, call->stack_usage);
2092 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2093 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2094 cfg->flags |= MONO_CFG_HAS_CALLS;
2095
2096 if (cinfo->struct_ret) {
2097 MONO_INST_NEW (cfg, ins, OP_MOVE);
2098 ins->sreg1 = call->vret_var->dreg;
2099 ins->dreg = mono_alloc_preg (cfg);
2100 MONO_ADD_INS (cfg->cbb, ins);
2101 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2102 }
2103
2104 for (i = 0; i < n; ++i) {
2105 MonoType *t;
2106
2107 ainfo = cinfo->args + i;
2108 if (i >= sig->hasthis)
2109 t = sig->params [i - sig->hasthis];
2110 else
2111 t = &mono_defaults.int_class->byval_arg;
2112 t = mono_type_get_underlying_type (t);
2113
2114 in = call->args [i];
2115
2116 if ((sig->call_convention == MONO_CALL_VARARG) &&
2117 (i == sig->sentinelpos)) {
2118 emit_sig_cookie (cfg, call, cinfo);
2119 }
2120
2121 switch (ainfo->regtype) {
2122 case RegTypeGeneral:
2123 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2124 break;
2125 case RegTypeFP:
2126 if (MONO_TYPE_ISSTRUCT (t)) {
2127 /* Valuetype passed in one fp register */
2128 ainfo->regtype = RegTypeStructByValInFP;
2129 /* Fall through */
2130 } else {
2131 if (ainfo->size == 4)
2132 ainfo->regtype = RegTypeFPR4;
2133 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2134 break;
2135 }
2136 case RegTypeStructByVal:
2137 case RegTypeStructByAddr:
2138 case RegTypeStructByAddrOnStack: {
2139 guint32 align;
2140 guint32 size;
2141
2142 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2143 size = sizeof (MonoTypedRef);
2144 align = sizeof (gpointer);
2145 }
2146 else
2147 if (sig->pinvoke)
2148 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2149 else {
2150 /*
2151 * Other backends use mono_type_stack_size (), but that
2152 * aligns the size to 8, which is larger than the size of
2153 * the source, leading to reads of invalid memory if the
2154 * source is at the end of address space.
2155 */
2156 size = mono_class_value_size (in->klass, &align);
2157 }
2158
2159 g_assert (in->klass);
2160
2161 ainfo->offparm += cinfo->sz.offStruct;
2162
2163 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2164 ins->sreg1 = in->dreg;
2165 ins->klass = in->klass;
2166 ins->backend.size = ainfo->size;
2167 ins->inst_p0 = call;
2168 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2169 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2170
2171 MONO_ADD_INS (cfg->cbb, ins);
2172
2173 if (ainfo->regtype == RegTypeStructByAddr) {
2174 /*
2175 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2176 * use the normal OUTARG opcodes to pass the address of the location to
2177 * the callee.
2178 */
2179 int treg = mono_alloc_preg (cfg);
2180 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2181 STK_BASE, ainfo->offparm);
2182 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2183 } else if (ainfo->regtype == RegTypeStructByAddrOnStack) {
2184 /* The address of the valuetype is passed on the stack */
2185 int treg = mono_alloc_preg (cfg);
2186 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2187 STK_BASE, ainfo->offparm);
2188 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG,
2189 ainfo->reg, ainfo->offset, treg);
2190 }
2191 break;
2192 }
2193 case RegTypeBase:
2194 if (!t->byref && t->type == MONO_TYPE_R4) {
2195 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2196 STK_BASE, ainfo->offset + 4,
2197 in->dreg);
2198 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2199 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2200 STK_BASE, ainfo->offset,
2201 in->dreg);
2202 } else {
2203 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2204 ins->inst_destbasereg = STK_BASE;
2205 ins->inst_offset = ainfo->offset;
2206 ins->sreg1 = in->dreg;
2207
2208 /* This is needed by MonoTypedRef->value to point to the correct data */
2209 if ((sig->call_convention == MONO_CALL_VARARG) &&
2210 (i >= sig->sentinelpos)) {
2211 switch (ainfo->size) {
2212 case 1:
2213 ins->opcode = OP_STOREI1_MEMBASE_REG;
2214 break;
2215 case 2:
2216 ins->opcode = OP_STOREI2_MEMBASE_REG;
2217 break;
2218 case 4:
2219 ins->opcode = OP_STOREI4_MEMBASE_REG;
2220 break;
2221 default:
2222 break;
2223 }
2224 }
2225
2226 MONO_ADD_INS (cfg->cbb, ins);
2227 }
2228 break;
2229 default:
2230 g_assert_not_reached ();
2231 break;
2232 }
2233 }
2234
2235 /*
2236 * Handle the case where there are no implicit arguments
2237 */
2238 if ((sig->call_convention == MONO_CALL_VARARG) &&
2239 (i == sig->sentinelpos)) {
2240 emit_sig_cookie (cfg, call, cinfo);
2241 }
2242 }
2243
2244 /*========================= End of Function ========================*/
2245
2246 /*------------------------------------------------------------------*/
2247 /* */
2248 /* Name - mono_arch_emit_outarg_vt */
2249 /* */
2250 /*------------------------------------------------------------------*/
2251
2252 void
2253 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2254 {
2255 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2256 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2257 int size = ins->backend.size;
2258
2259 if (ainfo->regtype == RegTypeStructByVal) {
2260 /*
2261 arg->ins.sreg1 = ainfo->reg;
2262 arg->ins.opcode = OP_OUTARG_VT;
2263 arg->size = ainfo->size;
2264 arg->offset = ainfo->offset;
2265 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2266 */
2267 if (ainfo->reg != STK_BASE) {
2268 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2269 } else {
2270 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2271 src->dreg, 0);
2272 }
2273 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2274 int dreg = mono_alloc_freg (cfg);
2275
2276 if (ainfo->size == 4) {
2277 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2278 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2279 } else {
2280 g_assert (ainfo->size == 8);
2281
2282 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2283 }
2284
2285 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2286 } else {
2287 MONO_EMIT_NEW_MOVE (cfg, STK_BASE, ainfo->offparm,
2288 src->dreg, 0, size);
2289 }
2290 }
2291
2292 /*------------------------------------------------------------------*/
2293 /* */
2294 /* Name - mono_arch_emit_setret */
2295 /* */
2296 /*------------------------------------------------------------------*/
2297
2298 void
2299 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2300 {
2301 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2302
2303 if (!ret->byref) {
2304 if (ret->type == MONO_TYPE_R4) {
2305 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2306 return;
2307 } else if (ret->type == MONO_TYPE_R8) {
2308 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2309 return;
2310 }
2311 }
2312
2313 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2314 }
2315
2316 /*========================= End of Function ========================*/
2317
2318 /*------------------------------------------------------------------*/
2319 /* */
2320 /* Name - mono_arch_instrument_mem_needs */
2321 /* */
2322 /* Function - Allow tracing to work with this interface (with */
2323 /* an optional argument). */
2324 /* */
2325 /*------------------------------------------------------------------*/
2326
2327 void
2328 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2329 {
2330 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2331 *stack = 0;
2332 /* split prolog-epilog requirements? */
2333 *code = 50; /* max bytes needed: check this number */
2334 }
2335
2336 /*========================= End of Function ========================*/
2337
2338 /*------------------------------------------------------------------*/
2339 /* */
2340 /* Name - mono_arch_instrument_prolog */
2341 /* */
2342 /* Function - Create an "instrumented" prolog. */
2343 /* */
2344 /*------------------------------------------------------------------*/
2345
2346 void*
2347 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2348 gboolean enable_arguments)
2349 {
2350 guchar *code = p;
2351 int parmOffset,
2352 fpOffset,
2353 baseReg;
2354
2355 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2356 if (cfg->method->save_lmf)
2357 parmOffset -= sizeof(MonoLMF);
2358 fpOffset = parmOffset + (5*sizeof(gpointer));
2359 if ((!has_ld) && (fpOffset > 4096)) {
2360 s390_lgr (code, s390_r12, STK_BASE);
2361 baseReg = s390_r12;
2362 while (fpOffset > 4096) {
2363 s390_aghi (code, baseReg, 4096);
2364 fpOffset -= 4096;
2365 parmOffset -= 4096;
2366 }
2367 } else {
2368 baseReg = STK_BASE;
2369 }
2370
2371 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2372 if (has_ld) {
2373 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2374 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2375 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2376 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2377 } else {
2378 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2379 s390_std (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2380 s390_std (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2381 s390_std (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2382 }
2383 s390_basr (code, s390_r13, 0);
2384 s390_j (code, 10);
2385 s390_llong(code, cfg->method);
2386 s390_llong(code, func);
2387 s390_lg (code, s390_r2, 0, s390_r13, 4);
2388 if (has_ld)
2389 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2390 else
2391 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2392 s390_lgr (code, s390_r4, STK_BASE);
2393 s390_aghi (code, s390_r4, cfg->stack_usage);
2394 s390_lg (code, s390_r1, 0, s390_r13, 12);
2395 s390_basr (code, s390_r14, s390_r1);
2396 if (has_ld) {
2397 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2398 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2399 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2400 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2401 } else {
2402 s390_ld (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2403 s390_ld (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2404 s390_ld (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2405 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2406 }
2407 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2408
2409 return code;
2410 }
2411
2412 /*========================= End of Function ========================*/
2413
2414 /*------------------------------------------------------------------*/
2415 /* */
2416 /* Name - mono_arch_instrument_epilog */
2417 /* */
2418 /* Function - Create an epilog that will handle the returned */
2419 /* values used in instrumentation. */
2420 /* */
2421 /*------------------------------------------------------------------*/
2422
2423 void*
2424 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2425 {
2426 guchar *code = p;
2427 int save_mode = SAVE_NONE,
2428 saveOffset;
2429 MonoMethod *method = cfg->method;
2430 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2431
2432 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2433 if (method->save_lmf)
2434 saveOffset -= sizeof(MonoLMF);
2435
2436 handle_enum:
2437 switch (rtype) {
2438 case MONO_TYPE_VOID:
2439 /* special case string .ctor icall */
2440 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2441 save_mode = SAVE_ONE;
2442 else
2443 save_mode = SAVE_NONE;
2444 break;
2445 case MONO_TYPE_I8:
2446 case MONO_TYPE_U8:
2447 save_mode = SAVE_ONE;
2448 break;
2449 case MONO_TYPE_R4:
2450 save_mode = SAVE_R4;
2451 break;
2452 case MONO_TYPE_R8:
2453 save_mode = SAVE_R8;
2454 break;
2455 case MONO_TYPE_VALUETYPE:
2456 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2457 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2458 goto handle_enum;
2459 }
2460 save_mode = SAVE_STRUCT;
2461 break;
2462 default:
2463 save_mode = SAVE_ONE;
2464 break;
2465 }
2466
2467 switch (save_mode) {
2468 case SAVE_ONE:
2469 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2470 if (enable_arguments) {
2471 s390_lgr (code, s390_r3, s390_r2);
2472 }
2473 break;
2474 case SAVE_R4:
2475 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2476 if (enable_arguments) {
2477 s390_ldebr (code, s390_f0, s390_f0);
2478 }
2479 break;
2480 case SAVE_R8:
2481 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2482 break;
2483 case SAVE_STRUCT:
2484 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2485 if (enable_arguments) {
2486 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2487 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2488 }
2489 break;
2490 case SAVE_NONE:
2491 default:
2492 break;
2493 }
2494
2495 s390_basr (code, s390_r13, 0);
2496 s390_j (code, 10);
2497 s390_llong(code, cfg->method);
2498 s390_llong(code, func);
2499 s390_lg (code, s390_r2, 0, s390_r13, 4);
2500 s390_lg (code, s390_r1, 0, s390_r13, 12);
2501 s390_basr (code, s390_r14, s390_r1);
2502
2503 switch (save_mode) {
2504 case SAVE_ONE:
2505 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2506 break;
2507 case SAVE_R4:
2508 case SAVE_R8:
2509 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2510 break;
2511 case SAVE_STRUCT:
2512 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2513 break;
2514 case SAVE_NONE:
2515 default:
2516 break;
2517 }
2518
2519 return code;
2520 }
2521
2522 /*========================= End of Function ========================*/
2523
2524 void
2525 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2526 {
2527 }
2528
2529 /*------------------------------------------------------------------*/
2530 /* */
2531 /* Name - mono_arch_peephole_pass */
2532 /* */
2533 /* Function - Form a peephole pass at the code looking for */
2534 /* simple optimizations. */
2535 /* */
2536 /*------------------------------------------------------------------*/
2537
2538 void
2539 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2540 {
2541 MonoInst *ins, *n;
2542
2543 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2544 mono_peephole_ins (bb, ins);
2545 }
2546 }
2547
2548 /*========================= End of Function ========================*/
2549
2550 void
2551 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2552 {
2553 MonoInst *ins, *next;
2554
2555 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2556 switch (ins->opcode) {
2557 case OP_DIV_IMM:
2558 case OP_REM_IMM:
2559 case OP_IDIV_IMM:
2560 case OP_IREM_IMM:
2561 case OP_IDIV_UN_IMM:
2562 case OP_IREM_UN_IMM:
2563 case OP_LAND_IMM:
2564 case OP_LOR_IMM:
2565 case OP_LXOR_IMM:
2566 case OP_LOCALLOC_IMM:
2567 mono_decompose_op_imm (cfg, bb, ins);
2568 break;
2569 case OP_LADD_IMM:
2570 if (!s390_is_imm16 (ins->inst_imm))
2571 /* This is created by the memcpy code which ignores is_inst_imm */
2572 mono_decompose_op_imm (cfg, bb, ins);
2573 break;
2574 default:
2575 break;
2576 }
2577 }
2578
2579 bb->max_vreg = cfg->next_vreg;
2580 }
2581
2582 /*========================= End of Function ========================*/
2583
2584 /*------------------------------------------------------------------*/
2585 /* */
2586 /* Name - emit_float_to_int */
2587 /* */
2588 /* Function - Create instructions which will convert a floating */
2589 /* point value to integer. */
2590 /* */
2591 /*------------------------------------------------------------------*/
2592
2593 static guchar*
2594 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2595 {
2596 /* sreg is a float, dreg is an integer reg. */
2597 if (is_signed) {
2598 s390_cgdbr (code, dreg, 5, sreg);
2599 switch (size) {
2600 case 1:
2601 s390_lghi (code, s390_r0, 0);
2602 s390_lghi (code, s390_r13, 0xff);
2603 s390_ltgr (code, dreg, dreg);
2604 s390_jnl (code, 4);
2605 s390_lghi (code, s390_r0, 0x80);
2606 s390_ngr (code, dreg, s390_r13);
2607 s390_ogr (code, dreg, s390_r0);
2608 break;
2609 }
2610 } else {
2611 short *o[1];
2612 s390_basr (code, s390_r13, 0);
2613 s390_j (code, 10);
2614 s390_llong (code, 0x41e0000000000000);
2615 s390_llong (code, 0x41f0000000000000);
2616 s390_ldr (code, s390_f15, sreg);
2617 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2618 s390_jl (code, 0); CODEPTR (code, o[0]);
2619 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2620 s390_cfdbr (code, dreg, 7, s390_f15);
2621 s390_j (code, 4);
2622 PTRSLOT (code, o[0]);
2623 s390_cfdbr (code, dreg, 5, sreg);
2624 switch (size) {
2625 case 1:
2626 s390_lghi (code, s390_r0, 0xff);
2627 s390_ngr (code, dreg, s390_r0);
2628 break;
2629 case 2:
2630 s390_lghi (code, s390_r0, -1);
2631 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2632 s390_ngr (code, dreg, s390_r0);
2633 break;
2634 }
2635 }
2636 return code;
2637 }
2638
2639 /*========================= End of Function ========================*/
2640
2641 /*------------------------------------------------------------------*/
2642 /* */
2643 /* Name - gboolean_is_unsigned. */
2644 /* */
2645 /* Function - Return TRUE if next opcode is checking for un- */
2646 /* signed value. */
2647 /* */
2648 /*------------------------------------------------------------------*/
2649
2650 static
2651 gboolean is_unsigned (MonoInst *next)
2652 {
2653 if ((next) &&
2654 (((next->opcode >= OP_IBNE_UN) &&
2655 (next->opcode <= OP_IBLT_UN)) ||
2656 ((next->opcode >= OP_LBNE_UN) &&
2657 (next->opcode <= OP_LBLT_UN)) ||
2658 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2659 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2660 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2661 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2662 ((next->opcode == OP_CLT_UN) ||
2663 (next->opcode == OP_CGT_UN)) ||
2664 ((next->opcode == OP_ICLT_UN) ||
2665 (next->opcode == OP_ICGT_UN) ||
2666 (next->opcode == OP_LCLT_UN) ||
2667 (next->opcode == OP_LCGT_UN))))
2668 return TRUE;
2669 else
2670 return FALSE;
2671 }
2672
2673 /*========================= End of Function ========================*/
2674
2675 /*------------------------------------------------------------------*/
2676 /* */
2677 /* Name - mono_arch_output_basic_block */
2678 /* */
2679 /* Function - Perform the "real" work of emitting instructions */
2680 /* that will do the work of in the basic block. */
2681 /* */
2682 /*------------------------------------------------------------------*/
2683
2684 void
2685 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2686 {
2687 MonoInst *ins;
2688 MonoCallInst *call;
2689 guint offset;
2690 guint8 *code = cfg->native_code + cfg->code_len;
2691 guint last_offset = 0;
2692 int max_len, cpos, src2;
2693
2694 /* we don't align basic blocks of loops on s390 */
2695
2696 if (cfg->verbose_level > 2)
2697 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2698
2699 cpos = bb->max_offset;
2700
2701 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2702 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2703 //g_assert (!mono_compile_aot);
2704 //cpos += 6;
2705 //if (bb->cil_code)
2706 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2707 /* this is not thread save, but good enough */
2708 /* fixme: howto handle overflows? */
2709 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2710 }
2711
2712 MONO_BB_FOR_EACH_INS (bb, ins) {
2713 offset = code - cfg->native_code;
2714
2715 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2716
2717 if (offset > (cfg->code_size - max_len - 16)) {
2718 cfg->code_size *= 2;
2719 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2720 code = cfg->native_code + offset;
2721 }
2722
2723 mono_debug_record_line_number (cfg, ins, offset);
2724
2725 switch (ins->opcode) {
2726 case OP_STOREI1_MEMBASE_IMM: {
2727 s390_lghi (code, s390_r0, ins->inst_imm);
2728 S390_LONG (code, stcy, stc, s390_r0, 0,
2729 ins->inst_destbasereg, ins->inst_offset);
2730 }
2731 break;
2732 case OP_STOREI2_MEMBASE_IMM: {
2733 s390_lghi (code, s390_r0, ins->inst_imm);
2734 S390_LONG (code, sthy, sth, s390_r0, 0,
2735 ins->inst_destbasereg, ins->inst_offset);
2736 }
2737 break;
2738 case OP_STOREI4_MEMBASE_IMM: {
2739 if (s390_is_imm16(ins->inst_imm)) {
2740 s390_lghi (code, s390_r0, ins->inst_imm);
2741 } else {
2742 s390_basr (code, s390_r13, 0);
2743 s390_j (code, 6);
2744 s390_llong(code, ins->inst_imm);
2745 s390_lg (code, s390_r0, 0, s390_r13, 4);
2746 }
2747 S390_LONG (code, sty, st, s390_r0, 0,
2748 ins->inst_destbasereg, ins->inst_offset);
2749 }
2750 break;
2751 case OP_STORE_MEMBASE_IMM:
2752 case OP_STOREI8_MEMBASE_IMM: {
2753 if (s390_is_imm16(ins->inst_imm)) {
2754 s390_lghi (code, s390_r0, ins->inst_imm);
2755 } else {
2756 s390_basr (code, s390_r13, 0);
2757 s390_j (code, 6);
2758 s390_llong(code, ins->inst_imm);
2759 s390_lg (code, s390_r0, 0, s390_r13, 4);
2760 }
2761 S390_LONG (code, stg, stg, s390_r0, 0,
2762 ins->inst_destbasereg, ins->inst_offset);
2763 }
2764 break;
2765 case OP_STOREI1_MEMBASE_REG: {
2766 S390_LONG (code, stcy, stc, ins->sreg1, 0,
2767 ins->inst_destbasereg, ins->inst_offset);
2768 }
2769 break;
2770 case OP_STOREI2_MEMBASE_REG: {
2771 S390_LONG (code, sthy, sth, ins->sreg1, 0,
2772 ins->inst_destbasereg, ins->inst_offset);
2773 }
2774 break;
2775 case OP_STOREI4_MEMBASE_REG: {
2776 S390_LONG (code, sty, st, ins->sreg1, 0,
2777 ins->inst_destbasereg, ins->inst_offset);
2778 }
2779 break;
2780 case OP_STORE_MEMBASE_REG:
2781 case OP_STOREI8_MEMBASE_REG: {
2782 S390_LONG (code, stg, stg, ins->sreg1, 0,
2783 ins->inst_destbasereg, ins->inst_offset);
2784 }
2785 break;
2786 case OP_LOADU4_MEM:
2787 g_assert_not_reached ();
2788 break;
2789 case OP_LOAD_MEMBASE:
2790 case OP_LOADI8_MEMBASE: {
2791 S390_LONG (code, lg, lg, ins->dreg, 0,
2792 ins->inst_basereg, ins->inst_offset);
2793 }
2794 break;
2795 case OP_LOADI4_MEMBASE: {
2796 S390_LONG (code, lgf, lgf, ins->dreg, 0,
2797 ins->inst_basereg, ins->inst_offset);
2798 }
2799 break;
2800 case OP_LOADU4_MEMBASE: {
2801 S390_LONG (code, llgf, llgf, ins->dreg, 0,
2802 ins->inst_basereg, ins->inst_offset);
2803 }
2804 break;
2805 case OP_LOADU1_MEMBASE: {
2806 S390_LONG (code, llgc, llgc, ins->dreg, 0,
2807 ins->inst_basereg, ins->inst_offset);
2808 }
2809 break;
2810 case OP_LOADI1_MEMBASE: {
2811 S390_LONG (code, lgb, lgb, ins->dreg, 0,
2812 ins->inst_basereg, ins->inst_offset);
2813 }
2814 break;
2815 case OP_LOADU2_MEMBASE: {
2816 S390_LONG (code, llgh, llgh, ins->dreg, 0,
2817 ins->inst_basereg, ins->inst_offset);
2818 }
2819 break;
2820 case OP_LOADI2_MEMBASE: {
2821 S390_LONG (code, lgh, lgh, ins->dreg, 0,
2822 ins->inst_basereg, ins->inst_offset);
2823 }
2824 break;
2825 case OP_LCONV_TO_I1: {
2826 #if 0
2827 s390_lgbr (code, ins->dreg, ins->sreg1);
2828 #else
2829 s390_sllg (code, ins->dreg, ins->sreg1, 0, 56);
2830 s390_srag (code, ins->dreg, ins->dreg, 0, 56);
2831 #endif
2832 }
2833 break;
2834 case OP_LCONV_TO_I2: {
2835 #if 0
2836 s390_lghr (code, ins->dreg, ins->sreg1);
2837 #else
2838 s390_sllg (code, ins->dreg, ins->sreg1, 0, 48);
2839 s390_srag (code, ins->dreg, ins->dreg, 0, 48);
2840 #endif
2841 }
2842 break;
2843 case OP_LCONV_TO_U1: {
2844 #if 0
2845 s390_llghr (code, ins->dreg, ins->sreg1);
2846 #else
2847 if (ins->dreg != ins->sreg1)
2848 s390_lgr (code, ins->dreg, ins->sreg1);
2849 s390_lghi (code, s390_r0, 0xff);
2850 s390_ngr (code, ins->dreg, s390_r0);
2851 #endif
2852 }
2853 break;
2854 case OP_LCONV_TO_U2: {
2855 #if 0
2856 s390_llghr (code, ins->dreg, ins->sreg1);
2857 #else
2858 if (ins->dreg != ins->sreg1)
2859 s390_lgr (code, ins->dreg, ins->sreg1);
2860 s390_lghi (code, s390_r0, -1);
2861 s390_srlg (code, s390_r0, s390_r0, 0, 48);
2862 s390_ngr (code, ins->dreg, s390_r0);
2863 #endif
2864 }
2865 break;
2866 case OP_ICONV_TO_I1: {
2867 #if 0
2868 s390_lbr (code, ins->dreg, ins->sreg1);
2869 #else
2870 if (ins->dreg != ins->sreg1)
2871 s390_lr (code, ins->dreg, ins->sreg1);
2872 s390_sll (code, ins->dreg, 0, 24);
2873 s390_sra (code, ins->dreg, 0, 24);
2874
2875 #endif
2876 }
2877 break;
2878 case OP_ICONV_TO_I2: {
2879 #if 0
2880 s390_lhr (code, ins->dreg, ins->sreg1);
2881 #else
2882 if (ins->dreg != ins->sreg1)
2883 s390_lr (code, ins->dreg, ins->sreg1);
2884 s390_sll (code, ins->dreg, 0, 16);
2885 s390_sra (code, ins->dreg, 0, 16);
2886 #endif
2887 }
2888 break;
2889 case OP_ICONV_TO_U1: {
2890 #if 0
2891 s390_llcr (code, ins->dreg, ins->sreg1);
2892 #else
2893 if (ins->dreg != ins->sreg1)
2894 s390_lr (code, ins->dreg, ins->sreg1);
2895 s390_lhi (code, s390_r0, 0xff);
2896 s390_nr (code, ins->dreg, s390_r0);
2897 #endif
2898 }
2899 break;
2900 case OP_ICONV_TO_U2: {
2901 #if 0
2902 s390_llhr (code, ins->dreg, ins->sreg1);
2903 #else
2904 if (ins->dreg != ins->sreg1)
2905 s390_lr (code, ins->dreg, ins->sreg1);
2906 s390_lhi (code, s390_r0, -1);
2907 s390_srl (code, s390_r0, 0, 16);
2908 s390_nr (code, ins->dreg, s390_r0);
2909 #endif
2910 }
2911 break;
2912 case OP_COMPARE:
2913 case OP_LCOMPARE: {
2914 if (is_unsigned (ins->next))
2915 s390_clgr (code, ins->sreg1, ins->sreg2);
2916 else
2917 s390_cgr (code, ins->sreg1, ins->sreg2);
2918 }
2919 break;
2920 case OP_ICOMPARE: {
2921 if (is_unsigned (ins->next))
2922 s390_clr (code, ins->sreg1, ins->sreg2);
2923 else
2924 s390_cr (code, ins->sreg1, ins->sreg2);
2925 }
2926 break;
2927 case OP_COMPARE_IMM:
2928 case OP_LCOMPARE_IMM: {
2929 if (s390_is_imm16 (ins->inst_imm)) {
2930 s390_lghi (code, s390_r0, ins->inst_imm);
2931 if (is_unsigned (ins->next))
2932 s390_clgr (code, ins->sreg1, s390_r0);
2933 else
2934 s390_cgr (code, ins->sreg1, s390_r0);
2935 } else {
2936 s390_basr (code, s390_r13, 0);
2937 s390_j (code, 6);
2938 s390_llong(code, ins->inst_imm);
2939 if (is_unsigned (ins->next))
2940 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
2941 else
2942 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
2943 }
2944 }
2945 break;
2946 case OP_ICOMPARE_IMM: {
2947 if (s390_is_imm16 (ins->inst_imm)) {
2948 s390_lghi (code, s390_r0, ins->inst_imm);
2949 if (is_unsigned (ins->next))
2950 s390_clr (code, ins->sreg1, s390_r0);
2951 else
2952 s390_cr (code, ins->sreg1, s390_r0);
2953 }
2954 else {
2955 s390_basr (code, s390_r13, 0);
2956 s390_j (code, 4);
2957 s390_word (code, ins->inst_imm);
2958 if (is_unsigned (ins->next))
2959 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2960 else
2961 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2962 }
2963 }
2964 break;
2965 case OP_BREAK: {
2966 s390_basr (code, s390_r13, 0);
2967 s390_j (code, 6);
2968 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_ABS,
2969 mono_break);
2970 s390_llong (code, mono_break);
2971 s390_lg (code, s390_r14, 0, s390_r13, 4);
2972 s390_basr (code, s390_r14, s390_r14);
2973 }
2974 break;
2975 case OP_ADDCC: {
2976 CHECK_SRCDST_COM;
2977 s390_agr (code, ins->dreg, src2);
2978 }
2979 break;
2980 case OP_LADD: {
2981 CHECK_SRCDST_COM;
2982 s390_agr (code, ins->dreg, src2);
2983 }
2984 break;
2985 case OP_ADC: {
2986 CHECK_SRCDST_COM;
2987 s390_alcgr (code, ins->dreg, src2);
2988 }
2989 break;
2990 case OP_ADD_IMM: {
2991 if (ins->dreg != ins->sreg1) {
2992 s390_lgr (code, ins->dreg, ins->sreg1);
2993 }
2994 if (s390_is_imm16 (ins->inst_imm)) {
2995 s390_aghi (code, ins->dreg, ins->inst_imm);
2996 } else {
2997 s390_basr (code, s390_r13, 0);
2998 s390_j (code, 6);
2999 s390_llong(code, ins->inst_imm);
3000 s390_ag (code, ins->dreg, 0, s390_r13, 4);
3001 }
3002 }
3003 break;
3004 case OP_LADD_IMM: {
3005 if (ins->dreg != ins->sreg1) {
3006 s390_lgr (code, ins->dreg, ins->sreg1);
3007 }
3008 g_assert (s390_is_imm16 (ins->inst_imm));
3009 s390_aghi (code, ins->dreg, ins->inst_imm);
3010 }
3011 break;
3012 case OP_ADC_IMM: {
3013 if (ins->dreg != ins->sreg1) {
3014 s390_lgr (code, ins->dreg, ins->sreg1);
3015 }
3016 if (s390_is_imm16 (ins->inst_imm)) {
3017 s390_lghi (code, s390_r0, ins->inst_imm);
3018 s390_alcgr (code, ins->dreg, s390_r0);
3019 } else {
3020 s390_basr (code, s390_r13, 0);
3021 s390_j (code, 6);
3022 s390_llong (code, ins->inst_imm);
3023 s390_lg (code, s390_r13, 0, s390_r13, 4);
3024 s390_alcgr (code, ins->dreg, s390_r13);
3025 }
3026 }
3027 break;
3028 case OP_IADD_OVF:
3029 case OP_S390_IADD_OVF: {
3030 CHECK_SRCDST_COM;
3031 s390_ar (code, ins->dreg, src2);
3032 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3033 s390_lgfr (code, ins->dreg, ins->dreg);
3034 }
3035 break;
3036 case OP_IADD_OVF_UN:
3037 case OP_S390_IADD_OVF_UN: {
3038 CHECK_SRCDST_COM;
3039 s390_algr (code, ins->dreg, src2);
3040 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3041 s390_llgfr (code, ins->dreg, ins->dreg);
3042 }
3043 break;
3044 case OP_ADD_OVF_CARRY: {
3045 CHECK_SRCDST_COM;
3046 s390_lghi (code, s390_r0, 0);
3047 s390_lgr (code, s390_r1, s390_r0);
3048 s390_alcgr (code, s390_r0, s390_r1);
3049 s390_agr (code, ins->dreg, src2);
3050 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3051 s390_agr (code, ins->dreg, s390_r0);
3052 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3053 }
3054 break;
3055 case OP_ADD_OVF_UN_CARRY: {
3056 CHECK_SRCDST_COM;
3057 s390_alcgr (code, ins->dreg, src2);
3058 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3059 }
3060 break;
3061 case OP_SUBCC: {
3062 CHECK_SRCDST_NCOM;
3063 s390_sgr (code, ins->dreg, src2);
3064 }
3065 break;
3066 case OP_LSUB: {
3067 CHECK_SRCDST_NCOM;
3068 s390_sgr (code, ins->dreg, src2);
3069 }
3070 break;
3071 case OP_SBB: {
3072 CHECK_SRCDST_NCOM;
3073 s390_slbgr(code, ins->dreg, src2);
3074 }
3075 break;
3076 case OP_SUB_IMM: {
3077 if (ins->dreg != ins->sreg1) {
3078 s390_lgr (code, ins->dreg, ins->sreg1);
3079 }
3080 if (s390_is_imm16 (-ins->inst_imm)) {
3081 s390_lghi (code, s390_r0, ins->inst_imm);
3082 s390_slgr (code, ins->dreg, s390_r0);
3083 } else {
3084 s390_basr (code, s390_r13, 0);
3085 s390_j (code, 6);
3086 s390_llong(code, ins->inst_imm);
3087 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3088 }
3089 }
3090 break;
3091 case OP_LSUB_IMM: {
3092 if (ins->dreg != ins->sreg1) {
3093 s390_lgr (code, ins->dreg, ins->sreg1);
3094 }
3095 if (s390_is_imm16 (-ins->inst_imm)) {
3096 s390_lghi (code, s390_r0, ins->inst_imm);
3097 s390_slgr (code, ins->dreg, s390_r0);
3098 } else {
3099 s390_basr (code, s390_r13, 0);
3100 s390_j (code, 6);
3101 s390_llong(code, ins->inst_imm);
3102 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3103 }
3104 }
3105 break;
3106 case OP_SBB_IMM: {
3107 if (ins->dreg != ins->sreg1) {
3108 s390_lgr (code, ins->dreg, ins->sreg1);
3109 }
3110 if (s390_is_imm16 (-ins->inst_imm)) {
3111 s390_lghi (code, s390_r0, ins->inst_imm);
3112 s390_slbgr (code, ins->dreg, s390_r0);
3113 } else {
3114 s390_basr (code, s390_r13, 0);
3115 s390_j (code, 6);
3116 s390_llong(code, ins->inst_imm);
3117 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
3118 }
3119 }
3120 break;
3121 case OP_SUB_OVF_CARRY: {
3122 CHECK_SRCDST_NCOM;
3123 s390_lghi (code, s390_r0, 0);
3124 s390_lgr (code, s390_r1, s390_r0);
3125 s390_slbgr (code, s390_r0, s390_r1);
3126 s390_sgr (code, ins->dreg, src2);
3127 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3128 s390_agr (code, ins->dreg, s390_r0);
3129 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3130 }
3131 break;
3132 case OP_SUB_OVF_UN_CARRY: {
3133 CHECK_SRCDST_NCOM;
3134 s390_slbgr (code, ins->dreg, src2);
3135 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3136 }
3137 break;
3138 case OP_LAND: {
3139 if (ins->sreg1 == ins->dreg) {
3140 s390_ngr (code, ins->dreg, ins->sreg2);
3141 }
3142 else {
3143 if (ins->sreg2 == ins->dreg) {
3144 s390_ngr (code, ins->dreg, ins->sreg1);
3145 }
3146 else {
3147 s390_lgr (code, ins->dreg, ins->sreg1);
3148 s390_ngr (code, ins->dreg, ins->sreg2);
3149 }
3150 }
3151 }
3152 break;
3153 case OP_AND_IMM: {
3154 if (ins->dreg != ins->sreg1) {
3155 s390_lgr (code, ins->dreg, ins->sreg1);
3156 }
3157 if (s390_is_imm16 (ins->inst_imm)) {
3158 s390_lghi (code, s390_r0, ins->inst_imm);
3159 s390_ngr (code, ins->dreg, s390_r0);
3160 } else {
3161 s390_basr (code, s390_r13, 0);
3162 s390_j (code, 6);
3163 s390_llong(code, ins->inst_imm);
3164 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3165 }
3166 }
3167 break;
3168 case OP_LDIV: {
3169 s390_lgr (code, s390_r1, ins->sreg1);
3170 s390_dsgr (code, s390_r0, ins->sreg2);
3171 s390_lgr (code, ins->dreg, s390_r1);
3172 }
3173 break;
3174 case OP_LDIV_UN: {
3175 s390_lgr (code, s390_r1, ins->sreg1);
3176 s390_lghi (code, s390_r0, 0);
3177 s390_dlgr (code, s390_r0, ins->sreg2);
3178 s390_lgr (code, ins->dreg, s390_r1);
3179 }
3180 break;
3181 case OP_LREM: {
3182 s390_lgr (code, s390_r1, ins->sreg1);
3183 s390_dsgr (code, s390_r0, ins->sreg2);
3184 s390_lgr (code, ins->dreg, s390_r0);
3185 break;
3186 }
3187 case OP_LREM_UN: {
3188 s390_lgr (code, s390_r1, ins->sreg1);
3189 s390_lghi (code, s390_r0, 0);
3190 s390_dlgr (code, s390_r0, ins->sreg2);
3191 s390_lgr (code, ins->dreg, s390_r0);
3192 }
3193 break;
3194 case OP_LOR: {
3195 if (ins->sreg1 == ins->dreg) {
3196 s390_ogr (code, ins->dreg, ins->sreg2);
3197 }
3198 else {
3199 if (ins->sreg2 == ins->dreg) {
3200 s390_ogr (code, ins->dreg, ins->sreg1);
3201 }
3202 else {
3203 s390_lgr (code, ins->dreg, ins->sreg1);
3204 s390_ogr (code, ins->dreg, ins->sreg2);
3205 }
3206 }
3207 }
3208 break;
3209 case OP_OR_IMM: {
3210 if (ins->dreg != ins->sreg1) {
3211 s390_lgr (code, ins->dreg, ins->sreg1);
3212 }
3213 if (s390_is_imm16 (ins->inst_imm)) {
3214 s390_lghi (code, s390_r0, ins->inst_imm);
3215 s390_ogr (code, ins->dreg, s390_r0);
3216 } else {
3217 s390_basr (code, s390_r13, 0);
3218 s390_j (code, 6);
3219 s390_llong(code, ins->inst_imm);
3220 s390_og (code, ins->dreg, 0, s390_r13, 4);
3221 }
3222 }
3223 break;
3224 case OP_LXOR: {
3225 if (ins->sreg1 == ins->dreg) {
3226 s390_xgr (code, ins->dreg, ins->sreg2);
3227 }
3228 else {
3229 if (ins->sreg2 == ins->dreg) {
3230 s390_xgr (code, ins->dreg, ins->sreg1);
3231 }
3232 else {
3233 s390_lgr (code, ins->dreg, ins->sreg1);
3234 s390_xgr (code, ins->dreg, ins->sreg2);
3235 }
3236 }
3237 }
3238 break;
3239 case OP_XOR_IMM: {
3240 if (ins->dreg != ins->sreg1) {
3241 s390_lgr (code, ins->dreg, ins->sreg1);
3242 }
3243 if (s390_is_imm16 (ins->inst_imm)) {
3244 s390_lghi (code, s390_r0, ins->inst_imm);
3245 s390_xgr (code, ins->dreg, s390_r0);
3246 } else {
3247 s390_basr (code, s390_r13, 0);
3248 s390_j (code, 6);
3249 s390_llong(code, ins->inst_imm);
3250 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3251 }
3252 }
3253 break;
3254 case OP_LSHL: {
3255 CHECK_SRCDST_NCOM;
3256 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3257 }
3258 break;
3259 case OP_SHL_IMM:
3260 case OP_LSHL_IMM: {
3261 if (ins->sreg1 != ins->dreg) {
3262 s390_lgr (code, ins->dreg, ins->sreg1);
3263 }
3264 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3265 }
3266 break;
3267 case OP_LSHR: {
3268 CHECK_SRCDST_NCOM;
3269 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3270 }
3271 break;
3272 case OP_SHR_IMM:
3273 case OP_LSHR_IMM: {
3274 if (ins->sreg1 != ins->dreg) {
3275 s390_lgr (code, ins->dreg, ins->sreg1);
3276 }
3277 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3278 }
3279 break;
3280 case OP_SHR_UN_IMM:
3281 case OP_LSHR_UN_IMM: {
3282 if (ins->sreg1 != ins->dreg) {
3283 s390_lgr (code, ins->dreg, ins->sreg1);
3284 }
3285 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3286 }
3287 break;
3288 case OP_LSHR_UN: {
3289 CHECK_SRCDST_NCOM;
3290 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3291 }
3292 break;
3293 case OP_LNOT: {
3294 if (ins->sreg1 != ins->dreg) {
3295 s390_lgr (code, ins->dreg, ins->sreg1);
3296 }
3297 s390_lghi (code, s390_r0, -1);
3298 s390_xgr (code, ins->dreg, s390_r0);
3299 }
3300 break;
3301 case OP_LNEG: {
3302 s390_lcgr (code, ins->dreg, ins->sreg1);
3303 }
3304 break;
3305 case OP_LMUL: {
3306 CHECK_SRCDST_COM;
3307 s390_msgr (code, ins->dreg, src2);
3308 }
3309 break;
3310 case OP_MUL_IMM:
3311 case OP_LMUL_IMM: {
3312 if (ins->dreg != ins->sreg1) {
3313 s390_lgr (code, ins->dreg, ins->sreg1);
3314 }
3315 if (s390_is_imm16 (ins->inst_imm)) {
3316 s390_lghi (code, s390_r13, ins->inst_imm);
3317 } else {
3318 s390_basr (code, s390_r13, 0);
3319 s390_j (code, 6);
3320 s390_llong(code, ins->inst_imm);
3321 s390_lg (code, s390_r13, 0, s390_r13, 4);
3322 }
3323 s390_msgr (code, ins->dreg, s390_r13);
3324 }
3325 break;
3326 case OP_LMUL_OVF: {
3327 short int *o[2];
3328 s390_ltgr (code, s390_r1, ins->sreg1);
3329 s390_jz (code, 0); CODEPTR(code, o[0]);
3330 s390_ltgr (code, s390_r0, ins->sreg2);
3331 s390_jnz (code, 6);
3332 s390_lghi (code, s390_r1, 0);
3333 s390_j (code, 0); CODEPTR(code, o[1]);
3334 s390_xgr (code, s390_r0, s390_r1);
3335 s390_msgr (code, s390_r1, ins->sreg2);
3336 s390_xgr (code, s390_r0, s390_r1);
3337 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3338 s390_ltgr (code, s390_r0, s390_r0);
3339 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3340 PTRSLOT (code, o[0]);
3341 PTRSLOT (code, o[1]);
3342 s390_lgr (code, ins->dreg, s390_r1);
3343 }
3344 break;
3345 case OP_LMUL_OVF_UN: {
3346 s390_lghi (code, s390_r0, 0);
3347 s390_lgr (code, s390_r1, ins->sreg1);
3348 s390_mlgr (code, s390_r0, ins->sreg2);
3349 s390_ltgr (code, s390_r0, s390_r0);
3350 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3351 s390_lgr (code, ins->dreg, s390_r1);
3352 }
3353 break;
3354 case OP_IADDCC: {
3355 g_assert_not_reached ();
3356 CHECK_SRCDST_COM_I;
3357 s390_algr (code, ins->dreg, src2);
3358 }
3359 break;
3360 case OP_IADD: {
3361 CHECK_SRCDST_COM_I;
3362 s390_agr (code, ins->dreg, src2);
3363 }
3364 break;
3365 case OP_IADC: {
3366 g_assert_not_reached ();
3367 CHECK_SRCDST_COM_I;
3368 s390_alcgr (code, ins->dreg, src2);
3369 }
3370 break;
3371 case OP_IADD_IMM: {
3372 if (ins->dreg != ins->sreg1) {
3373 s390_lgfr (code, ins->dreg, ins->sreg1);
3374 }
3375 if (s390_is_imm16 (ins->inst_imm)) {
3376 s390_aghi(code, ins->dreg, ins->inst_imm);
3377 } else {
3378 s390_basr (code, s390_r13, 0);
3379 s390_j (code, 4);
3380 s390_word (code, ins->inst_imm);
3381 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3382 }
3383 }
3384 break;
3385 case OP_IADC_IMM: {
3386 if (ins->dreg != ins->sreg1) {
3387 s390_lgfr (code, ins->dreg, ins->sreg1);
3388 }
3389 if (s390_is_imm16 (ins->inst_imm)) {
3390 s390_lghi (code, s390_r0, ins->inst_imm);
3391 s390_alcgr (code, ins->dreg, s390_r0);
3392 } else {
3393 s390_basr (code, s390_r13, 0);
3394 s390_j (code, 4);
3395 s390_word (code, ins->inst_imm);
3396 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3397 s390_alcgr (code, ins->dreg, s390_r13);
3398 }
3399 }
3400 break;
3401 case OP_LADD_OVF:
3402 case OP_S390_LADD_OVF: {
3403 CHECK_SRCDST_COM;
3404 s390_agr (code, ins->dreg, src2);
3405 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3406 }
3407 break;
3408 case OP_LADD_OVF_UN:
3409 case OP_S390_LADD_OVF_UN: {
3410 CHECK_SRCDST_COM;
3411 s390_algr (code, ins->dreg, src2);
3412 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3413 }
3414 break;
3415 case OP_ISUBCC: {
3416 CHECK_SRCDST_NCOM_I;
3417 s390_slgr (code, ins->dreg, src2);
3418 }
3419 break;
3420 case OP_ISUB: {
3421 CHECK_SRCDST_NCOM_I;
3422 s390_sgr (code, ins->dreg, src2);
3423 }
3424 break;
3425 case OP_ISBB: {
3426 CHECK_SRCDST_NCOM_I;
3427 s390_slbgr (code, ins->dreg, src2);
3428 }
3429 break;
3430 case OP_ISUB_IMM: {
3431 if (ins->dreg != ins->sreg1) {
3432 s390_lgfr (code, ins->dreg, ins->sreg1);
3433 }
3434 if (s390_is_imm16 (-ins->inst_imm)) {
3435 s390_aghi (code, ins->dreg, -ins->inst_imm);
3436 } else {
3437 s390_basr (code, s390_r13, 0);
3438 s390_j (code, 4);
3439 s390_word (code, ins->inst_imm);
3440 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3441 }
3442 }
3443 break;
3444 case OP_ISBB_IMM: {
3445 s390_basr (code, s390_r13, 0);
3446 s390_j (code, 4);
3447 s390_word (code, ins->inst_imm);
3448 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3449 }
3450 break;
3451 case OP_ISUB_OVF:
3452 case OP_S390_ISUB_OVF: {
3453 CHECK_SRCDST_NCOM;
3454 s390_sr (code, ins->dreg, src2);
3455 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3456 s390_lgfr (code, ins->dreg, ins->dreg);
3457 }
3458 break;
3459 case OP_ISUB_OVF_UN:
3460 case OP_S390_ISUB_OVF_UN: {
3461 CHECK_SRCDST_NCOM;
3462 s390_slr (code, ins->dreg, src2);
3463 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3464 s390_llgfr(code, ins->dreg, ins->dreg);
3465 }
3466 break;
3467 case OP_LSUB_OVF:
3468 case OP_S390_LSUB_OVF: {
3469 CHECK_SRCDST_NCOM;
3470 s390_sgr (code, ins->dreg, src2);
3471 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3472 }
3473 break;
3474 case OP_LSUB_OVF_UN:
3475 case OP_S390_LSUB_OVF_UN: {
3476 CHECK_SRCDST_NCOM;
3477 s390_slgr (code, ins->dreg, src2);
3478 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3479 }
3480 break;
3481 case OP_IAND: {
3482 CHECK_SRCDST_NCOM_I;
3483 s390_ngr (code, ins->dreg, src2);
3484 }
3485 break;
3486 case OP_IAND_IMM: {
3487 if (ins->dreg != ins->sreg1) {
3488 s390_lgfr (code, ins->dreg, ins->sreg1);
3489 }
3490 if (s390_is_imm16 (ins->inst_imm)) {
3491 s390_lghi (code, s390_r0, ins->inst_imm);
3492 s390_ngr (code, ins->dreg, s390_r0);
3493 } else {
3494 s390_basr (code, s390_r13, 0);
3495 s390_j (code, 6);
3496 s390_llong(code, ins->inst_imm);
3497 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3498 }
3499 }
3500 break;
3501 case OP_IDIV: {
3502 s390_lgfr (code, s390_r0, ins->sreg1);
3503 s390_srda (code, s390_r0, 0, 32);
3504 s390_dr (code, s390_r0, ins->sreg2);
3505 s390_lgfr (code, ins->dreg, s390_r1);
3506 }
3507 break;
3508 case OP_IDIV_UN: {
3509 s390_lgfr (code, s390_r0, ins->sreg1);
3510 s390_srdl (code, s390_r0, 0, 32);
3511 s390_dlr (code, s390_r0, ins->sreg2);
3512 s390_lgfr (code, ins->dreg, s390_r1);
3513 }
3514 break;
3515 case OP_IDIV_IMM: {
3516 if (s390_is_imm16 (ins->inst_imm)) {
3517 s390_lghi (code, s390_r13, ins->inst_imm);
3518 s390_lgfr (code, s390_r0, ins->sreg1);
3519 } else {
3520 s390_basr (code, s390_r13, 0);
3521 s390_j (code, 4);
3522 s390_word (code, ins->inst_imm);
3523 s390_lgfr (code, s390_r0, ins->sreg1);
3524 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3525 }
3526 s390_srda (code, s390_r0, 0, 32);
3527 s390_dr (code, s390_r0, ins->sreg2);
3528 s390_lgfr (code, ins->dreg, s390_r1);
3529 }
3530 break;
3531 case OP_IREM: {
3532 s390_lgfr (code, s390_r0, ins->sreg1);
3533 s390_srda (code, s390_r0, 0, 32);
3534 s390_dr (code, s390_r0, ins->sreg2);
3535 s390_lgfr (code, ins->dreg, s390_r0);
3536 break;
3537 case OP_IREM_UN:
3538 s390_lgfr (code, s390_r0, ins->sreg1);
3539 s390_srdl (code, s390_r0, 0, 32);
3540 s390_dlr (code, s390_r0, ins->sreg2);
3541 s390_lgfr (code, ins->dreg, s390_r0);
3542 }
3543 break;
3544 case OP_IREM_IMM: {
3545 if (s390_is_imm16 (ins->inst_imm)) {
3546 s390_lghi (code, s390_r13, ins->inst_imm);
3547 s390_lgfr (code, s390_r0, ins->sreg1);
3548 } else {
3549 s390_basr (code, s390_r13, 0);
3550 s390_j (code, 4);
3551 s390_word (code, ins->inst_imm);
3552 s390_lgfr (code, s390_r0, ins->sreg1);
3553 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3554 }
3555 s390_srda (code, s390_r0, 0, 32);
3556 s390_dr (code, s390_r0, ins->sreg2);
3557 s390_lgfr (code, ins->dreg, s390_r0);
3558 }
3559 break;
3560 case OP_IOR: {
3561 CHECK_SRCDST_COM_I;
3562 s390_ogr (code, ins->dreg, src2);
3563 }
3564 break;
3565 case OP_IOR_IMM: {
3566 if (ins->dreg != ins->sreg1) {
3567 s390_lgfr (code, ins->dreg, ins->sreg1);
3568 }
3569 if (s390_is_imm16 (ins->inst_imm)) {
3570 s390_lghi (code, s390_r0, ins->inst_imm);
3571 s390_ogr (code, ins->dreg, s390_r0);
3572 } else {
3573 s390_basr (code, s390_r13, 0);
3574 s390_j (code, 6);
3575 s390_llong(code, ins->inst_imm);
3576 s390_og (code, ins->dreg, 0, s390_r13, 4);
3577 }
3578 }
3579 break;
3580 case OP_IXOR: {
3581 CHECK_SRCDST_COM_I;
3582 s390_xgr (code, ins->dreg, src2);
3583 }
3584 break;
3585 case OP_IXOR_IMM: {
3586 if (ins->dreg != ins->sreg1) {
3587 s390_lgfr (code, ins->dreg, ins->sreg1);
3588 }
3589 if (s390_is_imm16 (ins->inst_imm)) {
3590 s390_lghi (code, s390_r0, ins->inst_imm);
3591 s390_xgr (code, ins->dreg, s390_r0);
3592 } else {
3593 s390_basr (code, s390_r13, 0);
3594 s390_j (code, 6);
3595 s390_llong(code, ins->inst_imm);
3596 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3597 }
3598 }
3599 break;
3600 case OP_ISHL: {
3601 CHECK_SRCDST_NCOM;
3602 s390_sll (code, ins->dreg, src2, 0);
3603 }
3604 break;
3605 case OP_ISHL_IMM: {
3606 if (ins->sreg1 != ins->dreg) {
3607 s390_lgfr (code, ins->dreg, ins->sreg1);
3608 }
3609 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3610 }
3611 break;
3612 case OP_ISHR: {
3613 CHECK_SRCDST_NCOM;
3614 s390_sra (code, ins->dreg, src2, 0);
3615 }
3616 break;
3617 case OP_ISHR_IMM: {
3618 if (ins->sreg1 != ins->dreg) {
3619 s390_lgfr (code, ins->dreg, ins->sreg1);
3620 }
3621 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3622 }
3623 break;
3624 case OP_ISHR_UN_IMM: {
3625 if (ins->sreg1 != ins->dreg) {
3626 s390_lgfr (code, ins->dreg, ins->sreg1);
3627 }
3628 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3629 }
3630 break;
3631 case OP_ISHR_UN: {
3632 CHECK_SRCDST_NCOM;
3633 s390_srl (code, ins->dreg, src2, 0);
3634 }
3635 break;
3636 case OP_INOT: {
3637 if (ins->sreg1 != ins->dreg) {
3638 s390_lgfr (code, ins->dreg, ins->sreg1);
3639 }
3640 s390_lghi (code, s390_r0, -1);
3641 s390_xgr (code, ins->dreg, s390_r0);
3642 }
3643 break;
3644 case OP_INEG: {
3645 s390_lcgr (code, ins->dreg, ins->sreg1);
3646 }
3647 break;
3648 case OP_IMUL: {
3649 CHECK_SRCDST_COM_I;
3650 s390_msr (code, ins->dreg, src2);
3651 }
3652 break;
3653 case OP_IMUL_IMM: {
3654 if (ins->dreg != ins->sreg1) {
3655 s390_lgfr (code, ins->dreg, ins->sreg1);
3656 }
3657 if (s390_is_imm16 (ins->inst_imm)) {
3658 s390_lghi (code, s390_r13, ins->inst_imm);
3659 } else {
3660 s390_basr (code, s390_r13, 0);
3661 s390_j (code, 4);
3662 s390_word (code, ins->inst_imm);
3663 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3664 }
3665 s390_msr (code, ins->dreg, s390_r13);
3666 }
3667 break;
3668 case OP_IMUL_OVF: {
3669 short int *o[2];
3670 s390_ltr (code, s390_r1, ins->sreg1);
3671 s390_jz (code, 0); CODEPTR(code, o[0]);
3672 s390_ltr (code, s390_r0, ins->sreg2);
3673 s390_jnz (code, 6);
3674 s390_lhi (code, s390_r1, 0);
3675 s390_j (code, 0); CODEPTR(code, o[1]);
3676 s390_xr (code, s390_r0, s390_r1);
3677 s390_msr (code, s390_r1, ins->sreg2);
3678 s390_xr (code, s390_r0, s390_r1);
3679 s390_srl (code, s390_r0, 0, 31);
3680 s390_ltr (code, s390_r0, s390_r0);
3681 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3682 PTRSLOT (code, o[0]);
3683 PTRSLOT (code, o[1]);
3684 s390_lgfr (code, ins->dreg, s390_r1);
3685 }
3686 break;
3687 case OP_IMUL_OVF_UN: {
3688 s390_lhi (code, s390_r0, 0);
3689 s390_lr (code, s390_r1, ins->sreg1);
3690 s390_mlr (code, s390_r0, ins->sreg2);
3691 s390_ltr (code, s390_r0, s390_r0);
3692 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3693 s390_lgfr (code, ins->dreg, s390_r1);
3694 }
3695 break;
3696 case OP_ICONST:
3697 case OP_I8CONST: {
3698 if (s390_is_imm16(ins->inst_c0)) {
3699 s390_lghi (code, ins->dreg, ins->inst_c0);
3700 } else {
3701 s390_basr (code, s390_r13, 0);
3702 s390_j (code, 6);
3703 s390_llong(code, ins->inst_c0);
3704 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3705 }
3706 }
3707 break;
3708 case OP_AOTCONST: {
3709 s390_basr (code, s390_r13, 0);
3710 s390_j (code, 6);
3711 mono_add_patch_info (cfg, code - cfg->native_code,
3712 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3713 s390_llong(code, 0);
3714 s390_lg (code,ins->dreg, 0, s390_r13, 4);
3715 }
3716 break;
3717 case OP_JUMP_TABLE: {
3718 mono_add_patch_info (cfg, code - cfg->native_code,
3719 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3720 s390_basr (code, s390_r13, 0);
3721 s390_j (code, 6);
3722 s390_llong (code, 0);
3723 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3724 }
3725 break;
3726 case OP_MOVE:
3727 if (ins->dreg != ins->sreg1) {
3728 s390_lgr (code, ins->dreg, ins->sreg1);
3729 }
3730 break;
3731 case OP_LCONV_TO_I:
3732 case OP_LCONV_TO_I8:
3733 case OP_SEXT_I4:
3734 s390_lgfr (code, ins->dreg, ins->sreg1);
3735 break;
3736 case OP_LCONV_TO_I4:
3737 s390_lgfr (code, ins->dreg, ins->sreg1);
3738 break;
3739 case OP_LCONV_TO_U:
3740 case OP_LCONV_TO_U8:
3741 case OP_LCONV_TO_U4:
3742 case OP_ZEXT_I4:
3743 s390_llgfr (code, ins->dreg, ins->sreg1);
3744 break;
3745 case OP_LCONV_TO_OVF_U4:
3746 s390_basr (code, s390_r13, 0);
3747 s390_j (code, 6);
3748 s390_llong(code, 4294967295);
3749 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3750 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3751 s390_ltgr (code, ins->sreg1, ins->sreg1);
3752 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3753 s390_llgfr(code, ins->dreg, ins->sreg1);
3754 break;
3755 case OP_LCONV_TO_OVF_I4_UN:
3756 s390_basr (code, s390_r13, 0);
3757 s390_j (code, 6);
3758 s390_llong(code, 2147483647);
3759 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3760 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3761 s390_ltgr (code, ins->sreg1, ins->sreg1);
3762 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3763 s390_lgfr (code, ins->dreg, ins->sreg1);
3764 break;
3765 case OP_FMOVE:
3766 case OP_FCONV_TO_R4: {
3767 if (ins->dreg != ins->sreg1) {
3768 s390_ldr (code, ins->dreg, ins->sreg1);
3769 }
3770 }
3771 break;
3772 case OP_S390_SETF4RET: {
3773 s390_ledbr (code, ins->dreg, ins->sreg1);
3774 }
3775 break;
3776 case OP_JMP: {
3777 if (cfg->method->save_lmf)
3778 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3779
3780 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3781 code = emit_load_volatile_arguments (code, cfg);
3782 }
3783
3784 code = backUpStackPtr(cfg, code);
3785 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3786 mono_add_patch_info (cfg, code - cfg->native_code,
3787 MONO_PATCH_INFO_METHOD_JUMP,
3788 ins->inst_p0);
3789 s390_jcl (code, S390_CC_UN, 0);
3790 }
3791 break;
3792 case OP_CHECK_THIS: {
3793 /* ensure ins->sreg1 is not NULL */
3794 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
3795 s390_ltgr (code, s390_r0, s390_r0);
3796 }
3797 break;
3798 case OP_ARGLIST: {
3799 int offset = cfg->sig_cookie + cfg->stack_usage;
3800
3801 if (s390_is_imm16 (offset))
3802 s390_lghi (code, s390_r0, offset);
3803 else {
3804 s390_basr (code, s390_r13, 0);
3805 s390_j (code, 6);
3806 s390_llong(code, offset);
3807 s390_lg (code, s390_r0, 0, s390_r13, 0);
3808 }
3809 s390_agr (code, s390_r0, cfg->frame_reg);
3810 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
3811 }
3812 break;
3813 case OP_FCALL: {
3814 s390_basr (code, s390_r13, 0);
3815 s390_j (code, 6);
3816 call = (MonoCallInst*)ins;
3817 if (ins->flags & MONO_INST_HAS_METHOD)
3818 mono_add_patch_info (cfg, code-cfg->native_code,
3819 MONO_PATCH_INFO_METHOD,
3820 call->method);
3821 else
3822 mono_add_patch_info (cfg, code-cfg->native_code,
3823 MONO_PATCH_INFO_ABS,
3824 call->fptr);
3825 s390_llong(code, 0);
3826 s390_lg (code, s390_r14, 0, s390_r13, 4);
3827 s390_basr (code, s390_r14, s390_r14);
3828 if (call->signature->ret->type == MONO_TYPE_R4)
3829 s390_ldebr (code, s390_f0, s390_f0);
3830 }
3831 break;
3832 case OP_LCALL:
3833 case OP_VCALL:
3834 case OP_VCALL2:
3835 case OP_VOIDCALL:
3836 case OP_CALL: {
3837 s390_basr (code, s390_r13, 0);
3838 s390_j (code, 6);
3839 call = (MonoCallInst*)ins;
3840 if (ins->flags & MONO_INST_HAS_METHOD)
3841 mono_add_patch_info (cfg, code-cfg->native_code,
3842 MONO_PATCH_INFO_METHOD,
3843 call->method);
3844 else
3845 mono_add_patch_info (cfg, code-cfg->native_code,
3846 MONO_PATCH_INFO_ABS,
3847 call->fptr);
3848 s390_llong(code, 0);
3849 s390_lg (code, s390_r14, 0, s390_r13, 4);
3850 s390_basr (code, s390_r14, s390_r14);
3851 }
3852 break;
3853 case OP_FCALL_REG: {
3854 call = (MonoCallInst*)ins;
3855 s390_lgr (code, s390_r1, ins->sreg1);
3856 s390_basr (code, s390_r14, s390_r1);
3857 if (call->signature->ret->type == MONO_TYPE_R4)
3858 s390_ldebr (code, s390_f0, s390_f0);
3859 }
3860 break;
3861 case OP_LCALL_REG:
3862 case OP_VCALL_REG:
3863 case OP_VCALL2_REG:
3864 case OP_VOIDCALL_REG:
3865 case OP_CALL_REG: {
3866 s390_lgr (code, s390_r1, ins->sreg1);
3867 s390_basr (code, s390_r14, s390_r1);
3868 }
3869 break;
3870 case OP_FCALL_MEMBASE: {
3871 call = (MonoCallInst*)ins;
3872 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3873 s390_basr (code, s390_r14, s390_r1);
3874 if (call->signature->ret->type == MONO_TYPE_R4)
3875 s390_ldebr (code, s390_f0, s390_f0);
3876 }
3877 break;
3878 case OP_LCALL_MEMBASE:
3879 case OP_VCALL_MEMBASE:
3880 case OP_VCALL2_MEMBASE:
3881 case OP_VOIDCALL_MEMBASE:
3882 case OP_CALL_MEMBASE: {
3883 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3884 s390_basr (code, s390_r14, s390_r1);
3885 }
3886 break;
3887 case OP_LOCALLOC: {
3888 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3889 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3890 s390_lgr (code, s390_r1, ins->sreg1);
3891 if (ins->flags & MONO_INST_INIT)
3892 s390_lgr (code, s390_r0, ins->sreg1);
3893 s390_aghi (code, s390_r1, 14);
3894 s390_srlg (code, s390_r1, s390_r1, 0, 3);
3895 s390_sllg (code, s390_r1, s390_r1, 0, 3);
3896 if (cfg->method->save_lmf) {
3897 /*----------------------------------*/
3898 /* we have to adjust lmf ebp value */
3899 /*----------------------------------*/
3900 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3901
3902 s390_lgr (code, s390_r13, cfg->frame_reg);
3903 if (s390_is_imm16(lmfOffset))
3904 s390_aghi (code, s390_r13, lmfOffset);
3905 else {
3906 s390_basr (code, s390_r14, 0);
3907 s390_j (code, 4);
3908 s390_word (code, lmfOffset);
3909 s390_agf (code, s390_r13, 0, s390_r14, 4);
3910 }
3911 s390_lgr (code, s390_r14, STK_BASE);
3912 s390_sgr (code, s390_r14, s390_r1);
3913 s390_stg (code, s390_r14, 0, s390_r13,
3914 G_STRUCT_OFFSET(MonoLMF, ebp));
3915 }
3916 s390_lg (code, s390_r13, 0, STK_BASE, 0);
3917 s390_sgr (code, STK_BASE, s390_r1);
3918 s390_stg (code, s390_r13, 0, STK_BASE, 0);
3919 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3920 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
3921 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
3922 if (ins->flags & MONO_INST_INIT) {
3923 s390_lgr (code, s390_r1, s390_r0);
3924 s390_lgr (code, s390_r0, ins->dreg);
3925 s390_lgr (code, s390_r14, s390_r12);
3926 s390_lghi (code, s390_r13, 0);
3927 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3928 s390_jo (code, -2);
3929 s390_lgr (code, s390_r12, s390_r14);
3930 }
3931 }
3932 break;
3933 case OP_THROW: {
3934 s390_lgr (code, s390_r2, ins->sreg1);
3935 s390_basr (code, s390_r13, 0);
3936 s390_j (code, 6);
3937 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3938 (gpointer) "mono_arch_throw_exception");
3939 s390_llong(code, 0);
3940 s390_lg (code, s390_r14, 0, s390_r13, 4);
3941 s390_basr (code, s390_r14, s390_r14);
3942 }
3943 break;
3944 case OP_RETHROW: {
3945 s390_lgr (code, s390_r2, ins->sreg1);
3946 s390_basr (code, s390_r13, 0);
3947 s390_j (code, 6);
3948 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3949 (gpointer) "mono_arch_rethrow_exception");
3950 s390_llong(code, 0);
3951 s390_lg (code, s390_r14, 0, s390_r13, 4);
3952 s390_basr (code, s390_r14, s390_r14);
3953 }
3954 break;
3955 case OP_START_HANDLER: {
3956 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3957
3958 S390_LONG (code, stg, stg, s390_r14, 0,
3959 spvar->inst_basereg,
3960 spvar->inst_offset);
3961 }
3962 break;
3963 case OP_ENDFILTER: {
3964 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3965
3966 if (ins->sreg1 != s390_r2)
3967 s390_lgr(code, s390_r2, ins->sreg1);
3968 S390_LONG (code, lg, lg, s390_r14, 0,
3969 spvar->inst_basereg,
3970 spvar->inst_offset);
3971 s390_br (code, s390_r14);
3972 }
3973 break;
3974 case OP_ENDFINALLY: {
3975 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3976
3977 S390_LONG (code, lg, lg, s390_r14, 0,
3978 spvar->inst_basereg,
3979 spvar->inst_offset);
3980 s390_br (code, s390_r14);
3981 }
3982 break;
3983 case OP_CALL_HANDLER: {
3984 mono_add_patch_info (cfg, code-cfg->native_code,
3985 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3986 s390_brasl (code, s390_r14, 0);
3987 }
3988 break;
3989 case OP_LABEL: {
3990 ins->inst_c0 = code - cfg->native_code;
3991 }
3992 break;
3993 case OP_RELAXED_NOP:
3994 case OP_NOP:
3995 case OP_DUMMY_USE:
3996 case OP_DUMMY_STORE:
3997 case OP_NOT_REACHED:
3998 case OP_NOT_NULL: {
3999 }
4000 break;
4001 case OP_BR:
4002 EMIT_UNCOND_BRANCH(ins);
4003 break;
4004 case OP_BR_REG: {
4005 s390_br (code, ins->sreg1);
4006 }
4007 break;
4008 case OP_CEQ:
4009 case OP_ICEQ:
4010 case OP_LCEQ: {
4011 s390_lghi(code, ins->dreg, 1);
4012 s390_jz (code, 4);
4013 s390_lghi(code, ins->dreg, 0);
4014 }
4015 break;
4016 case OP_CLT:
4017 case OP_ICLT:
4018 case OP_LCLT: {
4019 s390_lghi(code, ins->dreg, 1);
4020 s390_jl (code, 4);
4021 s390_lghi(code, ins->dreg, 0);
4022 }
4023 break;
4024 case OP_CLT_UN:
4025 case OP_ICLT_UN:
4026 case OP_LCLT_UN: {
4027 s390_lghi(code, ins->dreg, 1);
4028 s390_jlo (code, 4);
4029 s390_lghi(code, ins->dreg, 0);
4030 }
4031 break;
4032 case OP_CGT:
4033 case OP_ICGT:
4034 case OP_LCGT: {
4035 s390_lghi(code, ins->dreg, 1);
4036 s390_jh (code, 4);
4037 s390_lghi(code, ins->dreg, 0);
4038 }
4039 break;
4040 case OP_CGT_UN:
4041 case OP_ICGT_UN:
4042 case OP_LCGT_UN: {
4043 s390_lghi(code, ins->dreg, 1);
4044 s390_jho (code, 4);
4045 s390_lghi(code, ins->dreg, 0);
4046 }
4047 break;
4048 case OP_COND_EXC_EQ:
4049 case OP_COND_EXC_IEQ:
4050 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4051 break;
4052 case OP_COND_EXC_NE_UN:
4053 case OP_COND_EXC_INE_UN:
4054 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4055 break;
4056 case OP_COND_EXC_LT:
4057 case OP_COND_EXC_ILT:
4058 case OP_COND_EXC_LT_UN:
4059 case OP_COND_EXC_ILT_UN:
4060 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4061 break;
4062 case OP_COND_EXC_GT:
4063 case OP_COND_EXC_IGT:
4064 case OP_COND_EXC_GT_UN:
4065 case OP_COND_EXC_IGT_UN:
4066 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4067 break;
4068 case OP_COND_EXC_GE:
4069 case OP_COND_EXC_IGE:
4070 case OP_COND_EXC_GE_UN:
4071 case OP_COND_EXC_IGE_UN:
4072 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4073 break;
4074 case OP_COND_EXC_LE:
4075 case OP_COND_EXC_ILE:
4076 case OP_COND_EXC_LE_UN:
4077 case OP_COND_EXC_ILE_UN:
4078 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4079 break;
4080 case OP_COND_EXC_OV:
4081 case OP_COND_EXC_IOV:
4082 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4083 break;
4084 case OP_COND_EXC_NO:
4085 case OP_COND_EXC_INO:
4086 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4087 break;
4088 case OP_COND_EXC_C:
4089 case OP_COND_EXC_IC:
4090 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4091 break;
4092 case OP_COND_EXC_NC:
4093 case OP_COND_EXC_INC:
4094 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4095 break;
4096 case OP_LBEQ:
4097 case OP_IBEQ:
4098 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4099 break;
4100 case OP_LBNE_UN:
4101 case OP_IBNE_UN:
4102 EMIT_COND_BRANCH (ins, S390_CC_NE);
4103 break;
4104 case OP_LBLT:
4105 case OP_LBLT_UN:
4106 case OP_IBLT:
4107 case OP_IBLT_UN:
4108 EMIT_COND_BRANCH (ins, S390_CC_LT);
4109 break;
4110 case OP_LBGT:
4111 case OP_LBGT_UN:
4112 case OP_IBGT:
4113 case OP_IBGT_UN:
4114 EMIT_COND_BRANCH (ins, S390_CC_GT);
4115 break;
4116 case OP_LBGE:
4117 case OP_LBGE_UN:
4118 case OP_IBGE:
4119 case OP_IBGE_UN:
4120 EMIT_COND_BRANCH (ins, S390_CC_GE);
4121 break;
4122 case OP_LBLE:
4123 case OP_LBLE_UN:
4124 case OP_IBLE:
4125 case OP_IBLE_UN:
4126 EMIT_COND_BRANCH (ins, S390_CC_LE);
4127 break;
4128
4129 /* floating point opcodes */
4130 case OP_R8CONST: {
4131 if (*((float *) ins->inst_p0) == 0) {
4132 s390_lzdr (code, ins->dreg);
4133 } else {
4134 s390_basr (code, s390_r13, 0);
4135 s390_j (code, 6);
4136 s390_llong (code, ins->inst_p0);
4137 s390_lg (code, s390_r13, 0, s390_r13, 4);
4138 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4139 }
4140 }
4141 break;
4142 case OP_R4CONST: {
4143 if (*((float *) ins->inst_p0) == 0) {
4144 s390_lzdr (code, ins->dreg);
4145 } else {
4146 s390_basr (code, s390_r13, 0);
4147 s390_j (code, 6);
4148 s390_llong(code, ins->inst_p0);
4149 s390_lg (code, s390_r13, 0, s390_r13, 4);
4150 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4151 }
4152 }
4153 break;
4154 case OP_STORER8_MEMBASE_REG: {
4155 S390_LONG (code, stdy, std, ins->sreg1, 0,
4156 ins->inst_destbasereg, ins->inst_offset);
4157 }
4158 break;
4159 case OP_LOADR8_MEMBASE: {
4160 S390_LONG (code, ldy, ld, ins->dreg, 0,
4161 ins->inst_basereg, ins->inst_offset);
4162 }
4163 break;
4164 case OP_STORER4_MEMBASE_REG: {
4165 s390_ledbr (code, s390_f15, ins->sreg1);
4166 S390_LONG (code, stey, ste, s390_f15, 0,
4167 ins->inst_destbasereg, ins->inst_offset);
4168 }
4169 break;
4170 case OP_LOADR4_MEMBASE: {
4171 S390_LONG (code, ldy, ld, s390_f15, 0,
4172 ins->inst_basereg, ins->inst_offset);
4173 s390_ldebr (code, ins->dreg, s390_f15);
4174 }
4175 break;
4176 case OP_ICONV_TO_R_UN: {
4177 s390_cdfbr (code, ins->dreg, ins->sreg1);
4178 s390_ltr (code, ins->sreg1, ins->sreg1);
4179 s390_jnl (code, 12);
4180 s390_basr (code, s390_r13, 0);
4181 s390_j (code, 6);
4182 s390_word (code, 0x41f00000);
4183 s390_word (code, 0);
4184 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4185 }
4186 break;
4187 case OP_LCONV_TO_R_UN: {
4188 s390_cdgbr (code, ins->dreg, ins->sreg1);
4189 s390_ltgr (code, ins->sreg1, ins->sreg1);
4190 s390_jnl (code, 12);
4191 s390_basr (code, s390_r13, 0);
4192 s390_j (code, 6);
4193 s390_word (code, 0x41f00000);
4194 s390_word (code, 0);
4195 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4196 }
4197 break;
4198 case OP_LCONV_TO_R4:
4199 case OP_ICONV_TO_R4: {
4200 s390_cdgbr (code, ins->dreg, ins->sreg1);
4201 }
4202 break;
4203 case OP_LCONV_TO_R8:
4204 case OP_ICONV_TO_R8: {
4205 s390_cdgbr (code, ins->dreg, ins->sreg1);
4206 }
4207 break;
4208 case OP_FCONV_TO_I1:
4209 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4210 break;
4211 case OP_FCONV_TO_U1:
4212 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4213 break;
4214 case OP_FCONV_TO_I2:
4215 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4216 break;
4217 case OP_FCONV_TO_U2:
4218 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4219 break;
4220 case OP_FCONV_TO_I4:
4221 case OP_FCONV_TO_I:
4222 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4223 break;
4224 case OP_FCONV_TO_U4:
4225 case OP_FCONV_TO_U:
4226 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4227 break;
4228 case OP_FCONV_TO_I8:
4229 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
4230 break;
4231 case OP_LCONV_TO_OVF_I: {
4232 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4233 short int *o[5];
4234 s390_ltgr (code, ins->sreg2, ins->sreg2);
4235 s390_jnl (code, 0); CODEPTR(code, o[0]);
4236 s390_ltgr (code, ins->sreg1, ins->sreg1);
4237 s390_jnl (code, 0); CODEPTR(code, o[1]);
4238 s390_lhi (code, s390_r13, -1);
4239 s390_cgr (code, ins->sreg1, s390_r13);
4240 s390_jnz (code, 0); CODEPTR(code, o[2]);
4241 if (ins->dreg != ins->sreg2)
4242 s390_lgr (code, ins->dreg, ins->sreg2);
4243 s390_j (code, 0); CODEPTR(code, o[3]);
4244 PTRSLOT(code, o[0]);
4245 s390_jz (code, 0); CODEPTR(code, o[4]);
4246 PTRSLOT(code, o[1]);
4247 PTRSLOT(code, o[2]);
4248 mono_add_patch_info (cfg, code - cfg->native_code,
4249 MONO_PATCH_INFO_EXC, "OverflowException");
4250 s390_brasl (code, s390_r14, 0);
4251 PTRSLOT(code, o[3]);
4252 PTRSLOT(code, o[4]);
4253 }
4254 break;
4255 case OP_ABS: {
4256 s390_lpdbr (code, ins->dreg, ins->sreg1);
4257 }
4258 break;
4259 case OP_SQRT: {
4260 s390_sqdbr (code, ins->dreg, ins->sreg1);
4261 }
4262 break;
4263 case OP_FADD: {
4264 CHECK_SRCDST_COM_F;
4265 s390_adbr (code, ins->dreg, src2);
4266 }
4267 break;
4268 case OP_FSUB: {
4269 CHECK_SRCDST_NCOM_F;
4270 s390_sdbr (code, ins->dreg, src2);
4271 }
4272 break;
4273 case OP_FMUL: {
4274 CHECK_SRCDST_COM_F;
4275 s390_mdbr (code, ins->dreg, src2);
4276 }
4277 break;
4278 case OP_FDIV: {
4279 CHECK_SRCDST_NCOM_F;
4280 s390_ddbr (code, ins->dreg, src2);
4281 }
4282 break;
4283 case OP_FNEG: {
4284 s390_lcdbr (code, ins->dreg, ins->sreg1);
4285 }
4286 break;
4287 case OP_FREM: {
4288 CHECK_SRCDST_NCOM_F;
4289 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4290 }
4291 break;
4292 case OP_FCOMPARE: {
4293 s390_cdbr (code, ins->sreg1, ins->sreg2);
4294 }
4295 break;
4296 case OP_FCEQ: {
4297 s390_cdbr (code, ins->sreg1, ins->sreg2);
4298 s390_lghi (code, ins->dreg, 1);
4299 s390_je (code, 4);
4300 s390_lghi (code, ins->dreg, 0);
4301 }
4302 break;
4303 case OP_FCLT: {
4304 s390_cdbr (code, ins->sreg1, ins->sreg2);
4305 s390_lghi (code, ins->dreg, 1);
4306 s390_jl (code, 4);
4307 s390_lghi (code, ins->dreg, 0);
4308 }
4309 break;
4310 case OP_FCLT_UN: {
4311 s390_cdbr (code, ins->sreg1, ins->sreg2);
4312 s390_lghi (code, ins->dreg, 1);
4313 s390_jlo (code, 4);
4314 s390_lghi (code, ins->dreg, 0);
4315 }
4316 break;
4317 case OP_FCGT: {
4318 s390_cdbr (code, ins->sreg1, ins->sreg2);
4319 s390_lghi (code, ins->dreg, 1);
4320 s390_jh (code, 4);
4321 s390_lghi (code, ins->dreg, 0);
4322 }
4323 break;
4324 case OP_FCGT_UN: {
4325 s390_cdbr (code, ins->sreg1, ins->sreg2);
4326 s390_lghi (code, ins->dreg, 1);
4327 s390_jho (code, 4);
4328 s390_lghi (code, ins->dreg, 0);
4329 }
4330 break;
4331 case OP_FBEQ: {
4332 short *o;
4333 s390_jo (code, 0); CODEPTR(code, o);
4334 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4335 PTRSLOT (code, o);
4336 }
4337 break;
4338 case OP_FBNE_UN:
4339 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4340 break;
4341 case OP_FBLT: {
4342 short *o;
4343 s390_jo (code, 0); CODEPTR(code, o);
4344 EMIT_COND_BRANCH (ins, S390_CC_LT);
4345 PTRSLOT (code, o);
4346 }
4347 break;
4348 case OP_FBLT_UN:
4349 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4350 break;
4351 case OP_FBGT: {
4352 short *o;
4353 s390_jo (code, 0); CODEPTR(code, o);
4354 EMIT_COND_BRANCH (ins, S390_CC_GT);
4355 PTRSLOT (code, o);
4356 }
4357 break;
4358 case OP_FBGT_UN:
4359 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4360 break;
4361 case OP_FBGE: {
4362 short *o;
4363 s390_jo (code, 0); CODEPTR(code, o);
4364 EMIT_COND_BRANCH (ins, S390_CC_GE);
4365 PTRSLOT (code, o);
4366 }
4367 break;
4368 case OP_FBGE_UN:
4369 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4370 break;
4371 case OP_FBLE: {
4372 short *o;
4373 s390_jo (code, 0); CODEPTR(code, o);
4374 EMIT_COND_BRANCH (ins, S390_CC_LE);
4375 PTRSLOT (code, o);
4376 }
4377 break;
4378 case OP_FBLE_UN:
4379 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4380 break;
4381 case OP_CKFINITE: {
4382 short *o;
4383 s390_lhi (code, s390_r13, 0x7f);
4384 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4385 s390_jz (code, 0); CODEPTR(code, o);
4386 mono_add_patch_info (cfg, code - cfg->native_code,
4387 MONO_PATCH_INFO_EXC, "ArithmeticException");
4388 s390_brasl (code, s390_r14,0);
4389 PTRSLOT(code, o);
4390 }
4391 break;
4392 case OP_S390_MOVE: {
4393 if (ins->backend.size > 0) {
4394 if (ins->backend.size <= 256) {
4395 s390_mvc (code, ins->backend.size, ins->dreg,
4396 ins->inst_offset, ins->sreg1, ins->inst_imm);
4397 } else {
4398 s390_lgr (code, s390_r0, ins->dreg);
4399 if (s390_is_imm16 (ins->inst_offset)) {
4400 s390_aghi (code, s390_r0, ins->inst_offset);
4401 } else {
4402 s390_basr (code, s390_r13, 0);
4403 s390_j (code, 6);
4404 s390_llong(code, ins->inst_offset);
4405 s390_a (code, s390_r0, 0, s390_r13, 4);
4406 }
4407 s390_lgr (code, s390_r12, ins->sreg1);
4408 if (s390_is_imm16 (ins->inst_imm)) {
4409 s390_aghi (code, s390_r12, ins->inst_imm);
4410 } else {
4411 s390_basr (code, s390_r13, 0);
4412 s390_j (code, 6);
4413 s390_llong(code, ins->inst_imm);
4414 s390_ag (code, s390_r12, 0, s390_r13, 4);
4415 }
4416 s390_lgr (code, s390_r1, ins->sreg1);
4417 s390_lgr (code, s390_r13, s390_r1);
4418 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4419 s390_jo (code, -2);
4420 }
4421 }
4422 }
4423 break;
4424 case OP_ATOMIC_ADD_I8: {
4425 s390_lgr (code, s390_r1, ins->sreg2);
4426 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4427 s390_agr (code, s390_r1, s390_r0);
4428 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4429 s390_jnz (code, -10);
4430 s390_lgr (code, ins->dreg, s390_r1);
4431 }
4432 break;
4433 case OP_ATOMIC_ADD_NEW_I8: {
4434 s390_lgr (code, s390_r1, ins->sreg2);
4435 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4436 s390_agr (code, s390_r1, s390_r0);
4437 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4438 s390_jnz (code, -10);
4439 s390_lgr (code, ins->dreg, s390_r1);
4440 }
4441 break;
4442 case OP_ATOMIC_EXCHANGE_I8: {
4443 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4444 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4445 s390_jnz (code, -6);
4446 s390_lgr (code, ins->dreg, s390_r0);
4447 }
4448 break;
4449 case OP_ATOMIC_ADD_I4: {
4450 s390_lgfr(code, s390_r1, ins->sreg2);
4451 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4452 s390_agr (code, s390_r1, s390_r0);
4453 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4454 s390_jnz (code, -9);
4455 s390_lgfr(code, ins->dreg, s390_r1);
4456 }
4457 break;
4458 case OP_ATOMIC_ADD_NEW_I4: {
4459 s390_lgfr(code, s390_r1, ins->sreg2);
4460 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4461 s390_agr (code, s390_r1, s390_r0);
4462 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4463 s390_jnz (code, -9);
4464 s390_lgfr(code, ins->dreg, s390_r1);
4465 }
4466 break;
4467 case OP_ATOMIC_EXCHANGE_I4: {
4468 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4469 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4470 s390_jnz (code, -4);
4471 s390_lgfr(code, ins->dreg, s390_r0);
4472 }
4473 break;
4474 case OP_S390_BKCHAIN: {
4475 s390_lgr (code, ins->dreg, ins->sreg1);
4476 if (s390_is_imm16 (cfg->stack_offset)) {
4477 s390_aghi (code, ins->dreg, cfg->stack_offset);
4478 } else {
4479 s390_basr (code, s390_r13, 0);
4480 s390_j (code, 6);
4481 s390_llong(code, cfg->stack_offset);
4482 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4483 }
4484 }
4485 break;
4486 case OP_MEMORY_BARRIER: {
4487 }
4488 break;
4489 default:
4490 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4491 g_assert_not_reached ();
4492 }
4493
4494 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4495 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4496 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4497 g_assert_not_reached ();
4498 }
4499
4500 cpos += max_len;
4501
4502 last_offset = offset;
4503 }
4504
4505 cfg->code_len = code - cfg->native_code;
4506 }
4507
4508 /*========================= End of Function ========================*/
4509
4510 /*------------------------------------------------------------------*/
4511 /* */
4512 /* Name - mono_arch_register_lowlevel_calls */
4513 /* */
4514 /* Function - Register routines to help with --trace operation. */
4515 /* */
4516 /*------------------------------------------------------------------*/
4517
4518 void
4519 mono_arch_register_lowlevel_calls (void)
4520 {
4521 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4522 }
4523
4524 /*========================= End of Function ========================*/
4525
4526 /*------------------------------------------------------------------*/
4527 /* */
4528 /* Name - mono_arch_patch_code */
4529 /* */
4530 /* Function - Process the patch data created during the */
4531 /* instruction build process. This resolves jumps, */
4532 /* calls, variables etc. */
4533 /* */
4534 /*------------------------------------------------------------------*/
4535
4536 void
4537 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4538 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4539 {
4540 MonoJumpInfo *patch_info;
4541
4542 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4543 unsigned char *ip = patch_info->ip.i + code;
4544 gconstpointer target = NULL;
4545
4546 target = mono_resolve_patch_target (method, domain, code,
4547 patch_info, run_cctors);
4548
4549 switch (patch_info->type) {
4550 case MONO_PATCH_INFO_IP:
4551 case MONO_PATCH_INFO_EXC_NAME:
4552 case MONO_PATCH_INFO_LDSTR:
4553 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4554 case MONO_PATCH_INFO_LDTOKEN:
4555 case MONO_PATCH_INFO_EXC:
4556 case MONO_PATCH_INFO_ABS:
4557 case MONO_PATCH_INFO_METHOD:
4558 case MONO_PATCH_INFO_INTERNAL_METHOD:
4559 case MONO_PATCH_INFO_CLASS_INIT:
4560 s390_patch_addr (ip, (guint64) target);
4561 continue;
4562 case MONO_PATCH_INFO_SWITCH:
4563 /*----------------------------------*/
4564 /* ip points at the basr r13,0/j +4 */
4565 /* instruction the vtable value */
4566 /* follows this (i.e. ip+6) */
4567 /*----------------------------------*/
4568 *((gconstpointer *)(ip+6)) = target;
4569 continue;
4570 case MONO_PATCH_INFO_METHODCONST:
4571 case MONO_PATCH_INFO_CLASS:
4572 case MONO_PATCH_INFO_IMAGE:
4573 case MONO_PATCH_INFO_FIELD:
4574 case MONO_PATCH_INFO_IID:
4575 target = S390_RELATIVE(target, ip);
4576 s390_patch_rel (ip, (guint64) target);
4577 continue;
4578 case MONO_PATCH_INFO_R4:
4579 case MONO_PATCH_INFO_R8:
4580 case MONO_PATCH_INFO_METHOD_REL:
4581 g_assert_not_reached ();
4582 continue;
4583 default:
4584 target = S390_RELATIVE(target, ip);
4585 ip += 2;
4586 s390_patch_rel (ip, (guint64) target);
4587 }
4588 }
4589 }
4590
4591 /*========================= End of Function ========================*/
4592
4593 /*------------------------------------------------------------------*/
4594 /* */
4595 /* Name - emit_load_volatile_arguments */
4596 /* */
4597 /* Function - Emit the instructions to reload parameter regist- */
4598 /* registers for use with "tail" operations. */
4599 /* */
4600 /* The register loading operations performed here */
4601 /* are the mirror of the store operations performed */
4602 /* in mono_arch_emit_prolog and need to be kept in */
4603 /* synchronization with it. */
4604 /* */
4605 /*------------------------------------------------------------------*/
4606
4607 guint8 *
4608 emit_load_volatile_arguments (guint8 *code, MonoCompile *cfg)
4609 {
4610 MonoInst *inst;
4611 MonoMethod *method = cfg->method;
4612 MonoMethodSignature *sig = mono_method_signature(method);
4613 int pos = 0, i;
4614 CallInfo *cinfo;
4615
4616 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
4617
4618 if (cinfo->struct_ret) {
4619 ArgInfo *ainfo = &cinfo->ret;
4620 inst = cfg->vret_addr;
4621 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4622 }
4623
4624 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4625 ArgInfo *ainfo = cinfo->args + i;
4626 inst = cfg->args [pos];
4627
4628 if (inst->opcode == OP_REGVAR) {
4629 if (ainfo->regtype == RegTypeGeneral)
4630 s390_lgr (code, ainfo->reg, inst->dreg);
4631 else if (ainfo->regtype == RegTypeFP) {
4632 if (inst->dreg != ainfo->reg) {
4633 if (ainfo->size == 4) {
4634 s390_ldebr (code, ainfo->reg, inst->dreg);
4635 } else {
4636 s390_ldr (code, ainfo->reg, inst->dreg);
4637 }
4638 }
4639 }
4640 else if (ainfo->regtype == RegTypeBase) {
4641 } else
4642 g_assert_not_reached ();
4643 } else {
4644 if (ainfo->regtype == RegTypeGeneral) {
4645 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4646 g_assert_not_reached();
4647 switch (ainfo->size) {
4648 case 1:
4649 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4650 break;
4651 case 2:
4652 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4653 break;
4654 case 4:
4655 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4656 break;
4657 case 8:
4658 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4659 break;
4660 }
4661 } else if (ainfo->regtype == RegTypeBase) {
4662 } else if (ainfo->regtype == RegTypeFP) {
4663 if (ainfo->size == 8)
4664 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4665 else if (ainfo->size == 4)
4666 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4667 else
4668 g_assert_not_reached ();
4669 } else if (ainfo->regtype == RegTypeStructByVal) {
4670 if (ainfo->reg != STK_BASE) {
4671 switch (ainfo->size) {
4672 case 1:
4673 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4674 break;
4675 case 2:
4676 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4677 break;
4678 case 4:
4679 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4680 break;
4681 case 8:
4682 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4683 break;
4684 }
4685 }
4686 } else if (ainfo->regtype == RegTypeStructByAddr) {
4687 if (ainfo->reg != STK_BASE) {
4688 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4689 }
4690 } else
4691 g_assert_not_reached ();
4692 }
4693 pos++;
4694 }
4695
4696 return code;
4697 }
4698
4699 /*========================= End of Function ========================*/
4700
4701 /*------------------------------------------------------------------*/
4702 /* */
4703 /* Name - mono_arch_emit_prolog */
4704 /* */
4705 /* Function - Create the instruction sequence for a function */
4706 /* prolog. */
4707 /* */
4708 /*------------------------------------------------------------------*/
4709
4710 guint8 *
4711 mono_arch_emit_prolog (MonoCompile *cfg)
4712 {
4713 MonoMethod *method = cfg->method;
4714 MonoBasicBlock *bb;
4715 MonoMethodSignature *sig;
4716 MonoInst *inst;
4717 int alloc_size, pos, max_offset, i;
4718 guint8 *code;
4719 CallInfo *cinfo;
4720 int tracing = 0;
4721 int lmfOffset;
4722
4723 cfg->code_size = 512;
4724
4725 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4726 tracing = 1;
4727 cfg->code_size += 256;
4728 }
4729
4730 if (method->save_lmf)
4731 cfg->code_size += 200;
4732
4733 cfg->native_code = code = g_malloc (cfg->code_size);
4734
4735 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4736
4737 if (cfg->arch.bkchain_reg != -1)
4738 s390_lgr (code, cfg->arch.bkchain_reg, STK_BASE);
4739
4740 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4741 cfg->used_int_regs |= 1 << 11;
4742 }
4743
4744 alloc_size = cfg->stack_offset;
4745
4746 cfg->stack_usage = alloc_size;
4747 s390_lgr (code, s390_r11, STK_BASE);
4748 if (s390_is_imm16 (alloc_size)) {
4749 s390_aghi (code, STK_BASE, -alloc_size);
4750 } else {
4751 int stackSize = alloc_size;
4752 while (stackSize > 32767) {
4753 s390_aghi (code, STK_BASE, -32767);
4754 stackSize -= 32767;
4755 }
4756 s390_aghi (code, STK_BASE, -stackSize);
4757 }
4758 s390_stg (code, s390_r11, 0, STK_BASE, 0);
4759
4760 if (cfg->frame_reg != STK_BASE)
4761 s390_lgr (code, s390_r11, STK_BASE);
4762
4763 /* compute max_offset in order to use short forward jumps
4764 * we always do it on s390 because the immediate displacement
4765 * for jumps is too small
4766 */
4767 max_offset = 0;
4768 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4769 MonoInst *ins;
4770 bb->max_offset = max_offset;
4771
4772 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4773 max_offset += 6;
4774
4775 MONO_BB_FOR_EACH_INS (bb, ins)
4776 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4777 }
4778
4779 /* load arguments allocated to register from the stack */
4780 sig = mono_method_signature (method);
4781 pos = 0;
4782
4783 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4784
4785 if (cinfo->struct_ret) {
4786 ArgInfo *ainfo = &cinfo->ret;
4787 inst = cfg->vret_addr;
4788 inst->backend.size = ainfo->vtsize;
4789 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4790 }
4791
4792 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4793 ArgInfo *ainfo = cinfo->args + i;
4794 inst = cfg->args [pos];
4795
4796 if (inst->opcode == OP_VTARG_ADDR)
4797 inst = inst->inst_left;
4798
4799 if (inst->opcode == OP_REGVAR) {
4800 if (ainfo->regtype == RegTypeGeneral)
4801 s390_lgr (code, inst->dreg, ainfo->reg);
4802 else if (ainfo->regtype == RegTypeFP) {
4803 if (inst->dreg != ainfo->reg) {
4804 if (ainfo->size == 4) {
4805 s390_ledbr (code, inst->dreg, ainfo->reg);
4806 } else {
4807 s390_ldr (code, inst->dreg, ainfo->reg);
4808 }
4809 }
4810 }
4811 else if (ainfo->regtype == RegTypeBase) {
4812 s390_lgr (code, s390_r13, STK_BASE);
4813 s390_aghi (code, s390_r13, alloc_size);
4814 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
4815 } else
4816 g_assert_not_reached ();
4817
4818 if (cfg->verbose_level > 2)
4819 g_print ("Argument %d assigned to register %s\n",
4820 pos, mono_arch_regname (inst->dreg));
4821 } else {
4822 if (ainfo->regtype == RegTypeGeneral) {
4823 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4824 g_assert_not_reached();
4825 switch (ainfo->size) {
4826 case 1:
4827 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4828 break;
4829 case 2:
4830 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4831 break;
4832 case 4:
4833 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4834 break;
4835 case 8:
4836 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4837 break;
4838 }
4839 } else if (ainfo->regtype == RegTypeBase) {
4840 } else if (ainfo->regtype == RegTypeFP) {
4841 if (ainfo->size == 8)
4842 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4843 else if (ainfo->size == 4)
4844 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4845 else
4846 g_assert_not_reached ();
4847 } else if (ainfo->regtype == RegTypeStructByVal) {
4848 int doffset = inst->inst_offset;
4849 int reg;
4850 if (ainfo->reg != STK_BASE)
4851 reg = ainfo->reg;
4852 else {
4853 reg = s390_r0;
4854 s390_lgr (code, s390_r13, STK_BASE);
4855 s390_aghi (code, s390_r13, alloc_size);
4856 }
4857 switch (ainfo->size) {
4858 case 1:
4859 if (ainfo->reg == STK_BASE)
4860 s390_ic (code, reg, 0, s390_r13, ainfo->offset+7);
4861 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4862 break;
4863 case 2:
4864 if (ainfo->reg == STK_BASE)
4865 s390_lh (code, reg, 0, s390_r13, ainfo->offset+6);
4866 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4867 break;
4868 case 4:
4869 if (ainfo->reg == STK_BASE)
4870 s390_l (code, reg, 0, s390_r13, ainfo->offset+4);
4871 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4872 break;
4873 case 8:
4874 if (ainfo->reg == STK_BASE)
4875 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
4876 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
4877 break;
4878 }
4879 } else if (ainfo->regtype == RegTypeStructByAddr) {
4880 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4881 } else if (ainfo->regtype == RegTypeStructByAddrOnStack) {
4882 } else
4883 g_assert_not_reached ();
4884 }
4885 pos++;
4886 }
4887
4888 if (method->save_lmf) {
4889 /*---------------------------------------------------------------*/
4890 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4891 /*---------------------------------------------------------------*/
4892 lmfOffset = alloc_size - sizeof(MonoLMF);
4893
4894 s390_lgr (code, s390_r13, cfg->frame_reg);
4895 s390_aghi (code, s390_r13, lmfOffset);
4896
4897 /*---------------------------------------------------------------*/
4898 /* Preserve the parameter registers while we fix up the lmf */
4899 /*---------------------------------------------------------------*/
4900 s390_stmg (code, s390_r2, s390_r6, s390_r13,
4901 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4902
4903 /*---------------------------------------------------------------*/
4904 /* On return from this call r2 have the address of the &lmf */
4905 /*---------------------------------------------------------------*/
4906 s390_basr(code, s390_r10, 0);
4907 s390_j (code, 6);
4908 mono_add_patch_info (cfg, code - cfg->native_code,
4909 MONO_PATCH_INFO_INTERNAL_METHOD,
4910 (gpointer)"mono_get_lmf_addr");
4911 s390_llong(code, 0);
4912 s390_lg (code, s390_r1, 0, s390_r10, 4);
4913 s390_basr (code, s390_r14, s390_r1);
4914
4915 /*---------------------------------------------------------------*/
4916 /* Set lmf.lmf_addr = jit_tls->lmf */
4917 /*---------------------------------------------------------------*/
4918 s390_stg (code, s390_r2, 0, s390_r13,
4919 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4920
4921 /*---------------------------------------------------------------*/
4922 /* Get current lmf */
4923 /*---------------------------------------------------------------*/
4924 s390_lg (code, s390_r0, 0, s390_r2, 0);
4925
4926 /*---------------------------------------------------------------*/
4927 /* Set our lmf as the current lmf */
4928 /*---------------------------------------------------------------*/
4929 s390_stg (code, s390_r13, 0, s390_r2, 0);
4930
4931 /*---------------------------------------------------------------*/
4932 /* Have our lmf.previous_lmf point to the last lmf */
4933 /*---------------------------------------------------------------*/
4934 s390_stg (code, s390_r0, 0, s390_r13,
4935 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4936
4937 /*---------------------------------------------------------------*/
4938 /* save method info */
4939 /*---------------------------------------------------------------*/
4940 s390_basr (code, s390_r1, 0);
4941 s390_j (code, 6);
4942 s390_llong (code, method);
4943 s390_lg (code, s390_r1, 0, s390_r1, 4);
4944 s390_stg (code, s390_r1, 0, s390_r13,
4945 G_STRUCT_OFFSET(MonoLMF, method));
4946
4947 /*---------------------------------------------------------------*/
4948 /* save the current IP */
4949 /*---------------------------------------------------------------*/
4950 s390_stg (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4951 s390_basr (code, s390_r1, 0);
4952 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4953
4954 /*---------------------------------------------------------------*/
4955 /* Save general and floating point registers */
4956 /*---------------------------------------------------------------*/
4957 s390_stmg (code, s390_r2, s390_r12, s390_r13,
4958 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4959 for (i = 0; i < 16; i++) {
4960 s390_std (code, i, 0, s390_r13,
4961 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4962 }
4963
4964 /*---------------------------------------------------------------*/
4965 /* Restore the parameter registers now that we've set up the lmf */
4966 /*---------------------------------------------------------------*/
4967 s390_lmg (code, s390_r2, s390_r6, s390_r13,
4968 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4969 }
4970
4971 if (tracing)
4972 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4973
4974 cfg->code_len = code - cfg->native_code;
4975 g_assert (cfg->code_len < cfg->code_size);
4976
4977 return code;
4978 }
4979
4980 /*========================= End of Function ========================*/
4981
4982 /*------------------------------------------------------------------*/
4983 /* */
4984 /* Name - mono_arch_emit_epilog */
4985 /* */
4986 /* Function - Emit the instructions for a function epilog. */
4987 /* */
4988 /*------------------------------------------------------------------*/
4989
4990 void
4991 mono_arch_emit_epilog (MonoCompile *cfg)
4992 {
4993 MonoMethod *method = cfg->method;
4994 int tracing = 0;
4995 guint8 *code;
4996 int max_epilog_size = 96;
4997
4998 if (cfg->method->save_lmf)
4999 max_epilog_size += 128;
5000
5001 if (mono_jit_trace_calls != NULL)
5002 max_epilog_size += 128;
5003
5004 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5005 max_epilog_size += 128;
5006
5007 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
5008 cfg->code_size *= 2;
5009 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5010 mono_jit_stats.code_reallocs++;
5011 }
5012
5013 code = cfg->native_code + cfg->code_len;
5014
5015 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5016 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5017 tracing = 1;
5018 }
5019
5020 if (method->save_lmf)
5021 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
5022
5023 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
5024 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
5025 else
5026 code = backUpStackPtr(cfg, code);
5027
5028 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5029 s390_br (code, s390_r14);
5030
5031 cfg->code_len = code - cfg->native_code;
5032
5033 g_assert (cfg->code_len < cfg->code_size);
5034
5035 }
5036
5037 /*========================= End of Function ========================*/
5038
5039 /*------------------------------------------------------------------*/
5040 /* */
5041 /* Name - mono_arch_emit_exceptions */
5042 /* */
5043 /* Function - Emit the blocks to handle exception conditions. */
5044 /* */
5045 /*------------------------------------------------------------------*/
5046
5047 void
5048 mono_arch_emit_exceptions (MonoCompile *cfg)
5049 {
5050 MonoJumpInfo *patch_info;
5051 guint8 *code;
5052 int nThrows = 0,
5053 exc_count = 0,
5054 iExc;
5055 guint32 code_size;
5056 MonoClass *exc_classes [MAX_EXC];
5057 guint8 *exc_throw_start [MAX_EXC];
5058
5059 for (patch_info = cfg->patch_info;
5060 patch_info;
5061 patch_info = patch_info->next) {
5062 if (patch_info->type == MONO_PATCH_INFO_EXC)
5063 exc_count++;
5064 }
5065
5066 code_size = exc_count * 48;
5067
5068 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
5069 cfg->code_size *= 2;
5070 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5071 mono_jit_stats.code_reallocs++;
5072 }
5073
5074 code = cfg->native_code + cfg->code_len;
5075
5076 /*---------------------------------------------------------------------*/
5077 /* Add code to raise exceptions */
5078 /*---------------------------------------------------------------------*/
5079 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5080 switch (patch_info->type) {
5081 case MONO_PATCH_INFO_EXC: {
5082 guint8 *ip = patch_info->ip.i + cfg->native_code;
5083 MonoClass *exc_class;
5084 guint64 throw_ip;
5085
5086 /*-----------------------------------------------------*/
5087 /* Patch the branch in epilog to come here */
5088 /*-----------------------------------------------------*/
5089 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
5090
5091 exc_class = mono_class_from_name (mono_defaults.corlib,
5092 "System",
5093 patch_info->data.name);
5094 g_assert (exc_class);
5095 throw_ip = patch_info->ip.i;
5096
5097 for (iExc = 0; iExc < nThrows; ++iExc)
5098 if (exc_classes [iExc] == exc_class)
5099 break;
5100
5101 if (iExc < nThrows) {
5102 s390_jcl (code, S390_CC_UN,
5103 (guint64) exc_throw_start [iExc]);
5104 patch_info->type = MONO_PATCH_INFO_NONE;
5105 } else {
5106
5107 if (nThrows < MAX_EXC) {
5108 exc_classes [nThrows] = exc_class;
5109 exc_throw_start [nThrows] = code;
5110 }
5111
5112 /*---------------------------------------------*/
5113 /* Patch the parameter passed to the handler */
5114 /*---------------------------------------------*/
5115 s390_basr (code, s390_r13, 0);
5116 s390_j (code, 6);
5117 s390_llong(code, patch_info->data.target);
5118 /*---------------------------------------------*/
5119 /* Load return address & parameter register */
5120 /*---------------------------------------------*/
5121 s390_larl (code, s390_r14, (guint64)S390_RELATIVE((patch_info->ip.i +
5122 cfg->native_code + 8), code));
5123 s390_lg (code, s390_r2, 0, s390_r13, 4);
5124 /*---------------------------------------------*/
5125 /* Reuse the current patch to set the jump */
5126 /*---------------------------------------------*/
5127 s390_basr (code, s390_r13, 0);
5128 s390_j (code, 6);
5129 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5130 patch_info->data.name = "mono_arch_throw_exception_by_name";
5131 patch_info->ip.i = code - cfg->native_code;
5132 s390_llong(code, 0);
5133 s390_lg (code, s390_r1, 0, s390_r13, 4);
5134 s390_br (code, s390_r1);
5135 }
5136 break;
5137 }
5138 default:
5139 /* do nothing */
5140 break;
5141 }
5142 }
5143
5144 cfg->code_len = code - cfg->native_code;
5145
5146 g_assert (cfg->code_len < cfg->code_size);
5147
5148 }
5149
5150 /*========================= End of Function ========================*/
5151
5152 /*------------------------------------------------------------------*/
5153 /* */
5154 /* Name - mono_arch_setup_jit_tls_data */
5155 /* */
5156 /* Function - Setup the JIT's Thread Level Specific Data. */
5157 /* */
5158 /*------------------------------------------------------------------*/
5159
5160 void
5161 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
5162 {
5163 if (!tls_offset_inited) {
5164 tls_offset_inited = TRUE;
5165
5166 #if HAVE_KW_THREAD
5167 # if 0
5168 __asm__ ("\tear\t%r1,0\n"
5169 "\tlr\t%0,%3\n"
5170 "\tsr\t%0,%r1\n"
5171 "\tlr\t%1,%4\n"
5172 "\tsr\t%1,%r1\n"
5173 "\tlr\t%2,%5\n"
5174 "\tsr\t%2,%r1\n"
5175 : "=r" (appdomain_tls_offset),
5176 "=r" (thread_tls_offset),
5177 "=r" (lmf_tls_offset)
5178 : "r" (&tls_appdomain),
5179 "r" (&tls_current_object),
5180 "r" (&mono_lmf_addr)
5181 : "1", "cc");
5182 # endif
5183 #endif
5184 }
5185
5186 if (!lmf_addr_key_inited) {
5187 lmf_addr_key_inited = TRUE;
5188 pthread_key_create (&lmf_addr_key, NULL);
5189 }
5190 pthread_setspecific (lmf_addr_key, &tls->lmf);
5191
5192 }
5193
5194 /*========================= End of Function ========================*/
5195
5196 /*------------------------------------------------------------------*/
5197 /* */
5198 /* Name - mono_arch_free_jit_tls_data */
5199 /* */
5200 /* Function - Free tls data. */
5201 /* */
5202 /*------------------------------------------------------------------*/
5203
5204 void
5205 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5206 {
5207 }
5208
5209 /*========================= End of Function ========================*/
5210
5211 /*------------------------------------------------------------------*/
5212 /* */
5213 /* Name - mono_arch_emit_inst_for_method */
5214 /* */
5215 /*------------------------------------------------------------------*/
5216
5217 MonoInst*
5218 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5219 {
5220 return NULL;
5221 }
5222
5223 /*========================= End of Function ========================*/
5224
5225 /*------------------------------------------------------------------*/
5226 /* */
5227 /* Name - mono_arch_decompose_opts */
5228 /* */
5229 /* Function - Decompose opcode into a System z opcode. */
5230 /* */
5231 /*------------------------------------------------------------------*/
5232
5233 void
5234 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5235 {
5236 /*
5237 * Have to rename these to avoid being decomposed normally, since the normal
5238 * decomposition does not work on S390.
5239 */
5240 switch (ins->opcode) {
5241 case OP_ISUB_OVF:
5242 ins->opcode = OP_S390_ISUB_OVF;
5243 break;
5244 case OP_ISUB_OVF_UN:
5245 ins->opcode = OP_S390_ISUB_OVF_UN;
5246 break;
5247 case OP_IADD_OVF:
5248 ins->opcode = OP_S390_IADD_OVF;
5249 break;
5250 case OP_IADD_OVF_UN:
5251 ins->opcode = OP_S390_IADD_OVF_UN;
5252 break;
5253 case OP_LADD_OVF:
5254 ins->opcode = OP_S390_LADD_OVF;
5255 break;
5256 case OP_LADD_OVF_UN:
5257 ins->opcode = OP_S390_LADD_OVF_UN;
5258 break;
5259 case OP_LSUB_OVF:
5260 ins->opcode = OP_S390_LSUB_OVF;
5261 break;
5262 case OP_LSUB_OVF_UN:
5263 ins->opcode = OP_S390_LSUB_OVF_UN;
5264 break;
5265 default:
5266 break;
5267 }
5268 }
5269
5270 /*========================= End of Function ========================*/
5271
5272 /*------------------------------------------------------------------*/
5273 /* */
5274 /* Name - mono_arch_print_tree */
5275 /* */
5276 /* Function - Print platform-specific opcode details. */
5277 /* */
5278 /* Returns - 1 - opcode details have been printed */
5279 /* 0 - opcode details have not been printed */
5280 /* */
5281 /*------------------------------------------------------------------*/
5282
5283 gboolean
5284 mono_arch_print_tree (MonoInst *tree, int arity)
5285 {
5286 gboolean done;
5287
5288 switch (tree->opcode) {
5289 case OP_S390_LOADARG:
5290 case OP_S390_ARGREG:
5291 case OP_S390_ARGPTR:
5292 printf ("[0x%lx(%s)]", tree->inst_offset,
5293 mono_arch_regname (tree->inst_basereg));
5294 done = 1;
5295 break;
5296 case OP_S390_STKARG:
5297 printf ("[0x%lx(previous_frame)]",
5298 tree->inst_offset);
5299 done = 1;
5300 break;
5301 case OP_S390_MOVE:
5302 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5303 tree->inst_offset, tree->backend.size,
5304 mono_arch_regname(tree->dreg),
5305 tree->inst_imm,
5306 mono_arch_regname(tree->sreg1));
5307 done = 1;
5308 break;
5309 case OP_S390_SETF4RET:
5310 printf ("[f%s,f%s]",
5311 mono_arch_regname (tree->dreg),
5312 mono_arch_regname (tree->sreg1));
5313 done = 1;
5314 break;
5315 case OP_TLS_GET:
5316 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5317 tree->inst_imm,
5318 mono_arch_regname (tree->sreg1));
5319 done = 1;
5320 break;
5321 case OP_S390_BKCHAIN:
5322 printf ("[previous_frame(%s)]",
5323 mono_arch_regname (tree->sreg1));
5324 done = 1;
5325 default:
5326 done = 0;
5327 }
5328 return (done);
5329 }
5330
5331 /*========================= End of Function ========================*/
5332
5333 /*------------------------------------------------------------------*/
5334 /* */
5335 /* Name - mono_arch_regalloc_cost */
5336 /* */
5337 /* Function - Determine the cost, in the number of memory */
5338 /* references, of the action of allocating the var- */
5339 /* iable VMV into a register during global register */
5340 /* allocation. */
5341 /* */
5342 /* Returns - Cost */
5343 /* */
5344 /*------------------------------------------------------------------*/
5345
5346 guint32
5347 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5348 {
5349 /* FIXME: */
5350 return 2;
5351 }
5352
5353 /*========================= End of Function ========================*/
5354
5355 /*------------------------------------------------------------------*/
5356 /* */
5357 /* Name - mono_arch_get_domain_intrinsic */
5358 /* */
5359 /* Function - */
5360 /* */
5361 /* Returns - */
5362 /* */
5363 /*------------------------------------------------------------------*/
5364
5365 MonoInst *
5366 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5367 {
5368 MonoInst *ins;
5369
5370 if (appdomain_tls_offset == -1)
5371 return NULL;
5372
5373 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5374 ins->inst_offset = appdomain_tls_offset;
5375 return (ins);
5376 }
5377
5378 /*========================= End of Function ========================*/
5379
5380 /*------------------------------------------------------------------*/
5381 /* */
5382 /* Name - mono_arch_flush_register_windows */
5383 /* */
5384 /* Function - */
5385 /* */
5386 /* Returns - */
5387 /* */
5388 /*------------------------------------------------------------------*/
5389
5390 void
5391 mono_arch_flush_register_windows (void)
5392 {
5393 }
5394
5395 /*========================= End of Function ========================*/
5396
5397 /*------------------------------------------------------------------*/
5398 /* */
5399 /* Name - mono_arch_get_lmf_addr */
5400 /* */
5401 /* Function - */
5402 /* */
5403 /* Returns - */
5404 /* */
5405 /*------------------------------------------------------------------*/
5406
5407 gpointer
5408 mono_arch_get_lmf_addr (void)
5409 {
5410 return pthread_getspecific (lmf_addr_key);
5411 }
5412
5413 /*========================= End of Function ========================*/
5414
5415 /*------------------------------------------------------------------*/
5416 /* */
5417 /* Name - mono_arch_is_inst_imm */
5418 /* */
5419 /* Function - Determine if operand qualifies as an immediate */
5420 /* value. For s390 this is a value -32768-32768 */
5421 /* */
5422 /* Returns - True|False - is [not] immediate value. */
5423 /* */
5424 /*------------------------------------------------------------------*/
5425
5426 gboolean
5427 mono_arch_is_inst_imm (gint64 imm)
5428 {
5429 return s390_is_imm16 (imm);
5430 }
5431
5432 /*========================= End of Function ========================*/
5433
5434 /*------------------------------------------------------------------*/
5435 /* */
5436 /* Name - mono_arch_get_patch_offset */
5437 /* */
5438 /* Function - Dummy entry point until s390x supports aot. */
5439 /* */
5440 /* Returns - Offset for patch. */
5441 /* */
5442 /*------------------------------------------------------------------*/
5443
5444 guint32
5445 mono_arch_get_patch_offset (guint8 *code)
5446 {
5447 return 0;
5448 }
5449
5450 /*========================= End of Function ========================*/
5451
5452 /*------------------------------------------------------------------*/
5453 /* */
5454 /* Name - mono_arch_context_get_int_reg. */
5455 /* */
5456 /* Function - */
5457 /* */
5458 /* Returns - Offset for patch. */
5459 /* */
5460 /*------------------------------------------------------------------*/
5461
5462 gpointer
5463 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5464 {
5465 /* FIXME: implement */
5466 g_assert_not_reached ();
5467 return NULL;
5468 }
5469
5470 /*========================= End of Function ========================*/
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