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2010-04-01 Zoltan Varga <vargaz@gmail.com>
[mono/afaerber.git] / mono / mini / mini-s390x.c
blobb3526a659fb8cb8d9da84fd08064b209e3d15cf4
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 MAX_ARCH_DELEGATE_PARAMS 7
22
23 #define EMIT_COND_BRANCH(ins,cond) \
24 { \
25 if (ins->inst_true_bb->native_offset) { \
26 int displace; \
27 displace = ((cfg->native_code + \
28 ins->inst_true_bb->native_offset) - code) / 2; \
29 if (s390_is_imm16(displace)) { \
30 s390_brc (code, cond, displace); \
31 } else { \
32 s390_jcl (code, cond, displace); \
33 } \
34 } else { \
35 mono_add_patch_info (cfg, code - cfg->native_code, \
36 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
37 s390_jcl (code, cond, 0); \
38 } \
39 }
40
41 #define EMIT_UNCOND_BRANCH(ins) \
42 { \
43 if (ins->inst_target_bb->native_offset) { \
44 int displace; \
45 displace = ((cfg->native_code + \
46 ins->inst_target_bb->native_offset) - code) / 2; \
47 if (s390_is_imm16(displace)) { \
48 s390_brc (code, S390_CC_UN, displace); \
49 } else { \
50 s390_jcl (code, S390_CC_UN, displace); \
51 } \
52 } else { \
53 mono_add_patch_info (cfg, code - cfg->native_code, \
54 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
55 s390_jcl (code, S390_CC_UN, 0); \
56 } \
57 }
58
59 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
60 do { \
61 mono_add_patch_info (cfg, code - cfg->native_code, \
62 MONO_PATCH_INFO_EXC, exc_name); \
63 s390_jcl (code, cond, 0); \
64 } while (0);
65
66 #define CHECK_SRCDST_COM \
67 if (ins->dreg == ins->sreg2) { \
68 src2 = ins->sreg1; \
69 } else { \
70 src2 = ins->sreg2; \
71 if (ins->dreg != ins->sreg1) { \
72 s390_lgr (code, ins->dreg, ins->sreg1); \
73 } \
74 }
75
76 #define CHECK_SRCDST_NCOM \
77 if (ins->dreg == ins->sreg2) { \
78 src2 = s390_r13; \
79 s390_lgr (code, s390_r13, ins->sreg2); \
80 } else { \
81 src2 = ins->sreg2; \
82 } \
83 if (ins->dreg != ins->sreg1) { \
84 s390_lgr (code, ins->dreg, ins->sreg1); \
85 }
86
87 #define CHECK_SRCDST_COM_I \
88 if (ins->dreg == ins->sreg2) { \
89 src2 = ins->sreg1; \
90 } else { \
91 src2 = ins->sreg2; \
92 if (ins->dreg != ins->sreg1) { \
93 s390_lgfr (code, ins->dreg, ins->sreg1); \
94 } \
95 }
96
97 #define CHECK_SRCDST_NCOM_I \
98 if (ins->dreg == ins->sreg2) { \
99 src2 = s390_r13; \
100 s390_lgfr (code, s390_r13, ins->sreg2); \
101 } else { \
102 src2 = ins->sreg2; \
103 } \
104 if (ins->dreg != ins->sreg1) { \
105 s390_lgfr (code, ins->dreg, ins->sreg1); \
106 }
107
108 #define CHECK_SRCDST_COM_F \
109 if (ins->dreg == ins->sreg2) { \
110 src2 = ins->sreg1; \
111 } else { \
112 src2 = ins->sreg2; \
113 if (ins->dreg != ins->sreg1) { \
114 s390_ldr (code, ins->dreg, ins->sreg1); \
115 } \
116 }
117
118 #define CHECK_SRCDST_NCOM_F \
119 if (ins->dreg == ins->sreg2) { \
120 src2 = s390_f15; \
121 s390_ldr (code, s390_r13, ins->sreg2); \
122 } else { \
123 src2 = ins->sreg2; \
124 } \
125 if (ins->dreg != ins->sreg1) { \
126 s390_ldr (code, ins->dreg, ins->sreg1); \
127 }
128
129 #define MONO_EMIT_NEW_MOVE(cfg,dest,offset,src,imm,size) do { \
130 MonoInst *inst; \
131 int sReg, dReg; \
132 MONO_INST_NEW (cfg, inst, OP_NOP); \
133 if (size > 256) { \
134 inst->dreg = dest; \
135 inst->inst_offset = offset; \
136 inst->sreg1 = src; \
137 inst->inst_imm = imm; \
138 } else { \
139 if (s390_is_uimm12(offset)) { \
140 inst->dreg = dest; \
141 inst->inst_offset = offset; \
142 } else { \
143 dReg = mono_alloc_preg (cfg); \
144 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
145 dReg, dest, offset); \
146 inst->dreg = dReg; \
147 inst->inst_offset = 0; \
148 } \
149 if (s390_is_uimm12(imm)) { \
150 inst->sreg1 = src; \
151 inst->inst_imm = imm; \
152 } else { \
153 sReg = mono_alloc_preg (cfg); \
154 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
155 sReg, src, imm); \
156 inst->sreg1 = sReg; \
157 inst->inst_imm = 0; \
158 } \
159 } \
160 inst->opcode = OP_S390_MOVE; \
161 inst->backend.size = size; \
162 MONO_ADD_INS (cfg->cbb, inst); \
163 } while (0)
164
165 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
166 int reg = mono_alloc_preg (cfg); \
167 switch (size) { \
168 case 0: \
169 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
170 break; \
171 case 1: \
172 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
173 reg, sr, so); \
174 break; \
175 case 2: \
176 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
177 reg, sr, so); \
178 break; \
179 case 4: \
180 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
181 reg, sr, so); \
182 break; \
183 case 8: \
184 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI8_MEMBASE, \
185 reg, sr, so); \
186 break; \
187 } \
188 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
189 } while (0)
190
191 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
192 int tmpr; \
193 switch (size) { \
194 case 0: \
195 tmpr = mono_alloc_preg (cfg); \
196 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
197 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
198 dr, dx, tmpr); \
199 break; \
200 case 1: \
201 tmpr = mono_alloc_preg (cfg); \
202 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
203 tmpr, sr, so); \
204 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
205 dr, dx, tmpr); \
206 break; \
207 case 2: \
208 tmpr = mono_alloc_preg (cfg); \
209 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
210 tmpr, sr, so); \
211 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
212 dr, dx, tmpr); \
213 break; \
214 case 4: \
215 tmpr = mono_alloc_preg (cfg); \
216 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
217 tmpr, sr, so); \
218 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
219 dr, dx, tmpr); \
220 break; \
221 case 8: \
222 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
223 break; \
224 } \
225 } while (0)
226
227 #undef DEBUG
228 #define DEBUG(a) if (cfg->verbose_level > 1) a
229
230 #define MAX_EXC 16
231
232 #define S390_TRACE_STACK_SIZE (5*sizeof(gpointer)+4*sizeof(gdouble))
233
234 #define MAX(a, b) ((a) > (b) ? (a) : (b))
235
236 /*
237 * imt thunking size values
238 */
239 #define CMP_SIZE 24
240 #define LOADCON_SIZE 20
241 #define LOAD_SIZE 6
242 #define BR_SIZE 2
243 #define JUMP_SIZE 6
244 #define ENABLE_WRONG_METHOD_CHECK 0
245
246 /*========================= End of Defines =========================*/
247
248 /*------------------------------------------------------------------*/
249 /* I n c l u d e s */
250 /*------------------------------------------------------------------*/
251
252 #include "mini.h"
253 #include <string.h>
254
255 #include <mono/metadata/appdomain.h>
256 #include <mono/metadata/debug-helpers.h>
257 #include <mono/metadata/profiler-private.h>
258 #include <mono/utils/mono-math.h>
259
260 #include "mini-s390x.h"
261 #include "cpu-s390x.h"
262 #include "jit-icalls.h"
263 #include "ir-emit.h"
264
265 /*========================= End of Includes ========================*/
266
267 /*------------------------------------------------------------------*/
268 /* T y p e d e f s */
269 /*------------------------------------------------------------------*/
270
271 typedef struct {
272 guint stack_size,
273 local_size,
274 code_size,
275 parm_size,
276 offset,
277 offStruct,
278 retStruct;
279 } size_data;
280
281 /*------------------------------------------------------------------*/
282 /* Used by the instrument_emit_epilog */
283 /*------------------------------------------------------------------*/
284
285 enum {
286 SAVE_NONE,
287 SAVE_STRUCT,
288 SAVE_ONE,
289 SAVE_TWO,
290 SAVE_R4,
291 SAVE_R8
292 };
293
294 typedef struct InstList InstList;
295
296 struct InstList {
297 InstList *prev;
298 InstList *next;
299 MonoInst *data;
300 };
301
302 typedef enum {
303 RegTypeGeneral,
304 RegTypeBase,
305 RegTypeFP,
306 RegTypeFPR4,
307 RegTypeStructByVal,
308 RegTypeStructByValInFP,
309 RegTypeStructByAddr,
310 RegTypeStructByAddrOnStack
311 } ArgStorage;
312
313 typedef struct {
314 gint32 offset; /* offset from caller's stack */
315 gint32 offparm; /* offset from callee's stack */
316 guint16 vtsize; /* in param area */
317 guint8 reg;
318 ArgStorage regtype;
319 guint32 size; /* Size of structure used by RegTypeStructByVal */
320 gint32 type; /* Data type of argument */
321 } ArgInfo;
322
323 typedef struct {
324 int nargs;
325 int lastgr;
326 guint32 stack_usage;
327 guint32 struct_ret;
328 ArgInfo ret;
329 ArgInfo sigCookie;
330 size_data sz;
331 ArgInfo args [1];
332 } CallInfo;
333
334 typedef struct {
335 gint64 gr[5]; /* R2-R6 */
336 gdouble fp[3]; /* F0-F2 */
337 } __attribute__ ((packed)) RegParm;
338
339 /*========================= End of Typedefs ========================*/
340
341 /*------------------------------------------------------------------*/
342 /* P r o t o t y p e s */
343 /*------------------------------------------------------------------*/
344
345 static void indent (int);
346 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
347 static void decodeParm (MonoType *, void *, int);
348 static void enter_method (MonoMethod *, RegParm *, char *);
349 static void leave_method (MonoMethod *, ...);
350 static gboolean is_regsize_var (MonoType *);
351 static inline void add_general (guint *, size_data *, ArgInfo *);
352 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
353 static inline void add_float (guint *, size_data *, ArgInfo *);
354 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
355 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
356 gpointer mono_arch_get_lmf_addr (void);
357 static guint8 * emit_load_volatile_arguments (guint8 *, MonoCompile *);
358 static void catch_SIGILL(int, siginfo_t *, void *);
359
360 /*========================= End of Prototypes ======================*/
361
362 /*------------------------------------------------------------------*/
363 /* G l o b a l V a r i a b l e s */
364 /*------------------------------------------------------------------*/
365
366 int mono_exc_esp_offset = 0;
367
368 static int indent_level = 0;
369
370 int has_ld = 0;
371
372 static gboolean tls_offset_inited = FALSE;
373
374 static int appdomain_tls_offset = -1,
375 thread_tls_offset = -1;
376
377 pthread_key_t lmf_addr_key;
378
379 gboolean lmf_addr_key_inited = FALSE;
380
381 facilityList_t facs;
382
383 #if 0
384
385 extern __thread MonoDomain *tls_appdomain;
386 extern __thread MonoThread *tls_current_object;
387 extern __thread gpointer mono_lmf_addr;
388
389 #endif
390
391 /*====================== End of Global Variables ===================*/
392
393 /*------------------------------------------------------------------*/
394 /* */
395 /* Name - mono_arch_regname */
396 /* */
397 /* Function - Returns the name of the register specified by */
398 /* the input parameter. */
399 /* */
400 /*------------------------------------------------------------------*/
401
402 const char*
403 mono_arch_regname (int reg) {
404 static const char * rnames[] = {
405 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
406 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
407 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
408 "s390_r15"
409 };
410
411 if (reg >= 0 && reg < 16)
412 return rnames [reg];
413 else
414 return "unknown";
415 }
416
417 /*========================= End of Function ========================*/
418
419 /*------------------------------------------------------------------*/
420 /* */
421 /* Name - mono_arch_fregname */
422 /* */
423 /* Function - Returns the name of the register specified by */
424 /* the input parameter. */
425 /* */
426 /*------------------------------------------------------------------*/
427
428 const char*
429 mono_arch_fregname (int reg) {
430 static const char * rnames[] = {
431 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
432 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
433 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
434 "s390_f15"
435 };
436
437 if (reg >= 0 && reg < 16)
438 return rnames [reg];
439 else
440 return "unknown";
441 }
442
443 /*========================= End of Function ========================*/
444
445 /*------------------------------------------------------------------*/
446 /* */
447 /* Name - arch_get_argument_info */
448 /* */
449 /* Function - Gathers information on parameters such as size, */
450 /* alignment, and padding. arg_info should be large */
451 /* enough to hold param_count + 1 entries. */
452 /* */
453 /* Parameters - @csig - Method signature */
454 /* @param_count - No. of parameters to consider */
455 /* @arg_info - An array to store the result info */
456 /* */
457 /* Returns - Size of the activation frame */
458 /* */
459 /*------------------------------------------------------------------*/
460
461 int
462 mono_arch_get_argument_info (MonoMethodSignature *csig,
463 int param_count,
464 MonoJitArgumentInfo *arg_info)
465 {
466 int k, frame_size = 0;
467 int size, align, pad;
468 int offset = 8;
469
470 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
471 frame_size += sizeof (gpointer);
472 offset += 8;
473 }
474
475 arg_info [0].offset = offset;
476
477 if (csig->hasthis) {
478 frame_size += sizeof (gpointer);
479 offset += 8;
480 }
481
482 arg_info [0].size = frame_size;
483
484 for (k = 0; k < param_count; k++) {
485
486 if (csig->pinvoke)
487 size = mono_type_native_stack_size (csig->params [k], (guint32 *) &align);
488 else
489 size = mini_type_stack_size (NULL, csig->params [k], &align);
490
491 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
492 arg_info [k].pad = pad;
493 frame_size += size;
494 arg_info [k + 1].pad = 0;
495 arg_info [k + 1].size = size;
496 offset += pad;
497 arg_info [k + 1].offset = offset;
498 offset += size;
499 }
500
501 align = MONO_ARCH_FRAME_ALIGNMENT;
502 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
503 arg_info [k].pad = pad;
504
505 return frame_size;
506 }
507
508 /*========================= End of Function ========================*/
509
510 /*------------------------------------------------------------------*/
511 /* */
512 /* Name - retFitsInReg. */
513 /* */
514 /* Function - Determines if a value can be returned in one or */
515 /* two registers. */
516 /* */
517 /*------------------------------------------------------------------*/
518
519 static inline gboolean
520 retFitsInReg(guint32 size)
521 {
522 switch (size) {
523 case 0:
524 case 1:
525 case 2:
526 case 4:
527 case 8:
528 return (TRUE);
529 break;
530 default:
531 return (FALSE);
532 }
533 }
534
535 /*========================= End of Function ========================*/
536
537 /*------------------------------------------------------------------*/
538 /* */
539 /* Name - backStackPtr. */
540 /* */
541 /* Function - Restore Stack Pointer to previous frame. */
542 /* */
543 /*------------------------------------------------------------------*/
544
545 static inline guint8 *
546 backUpStackPtr(MonoCompile *cfg, guint8 *code)
547 {
548 int stackSize = cfg->stack_usage;
549
550 if (s390_is_imm16 (stackSize)) {
551 s390_aghi (code, STK_BASE, stackSize);
552 } else {
553 while (stackSize > 32767) {
554 s390_aghi (code, STK_BASE, 32767);
555 stackSize -= 32767;
556 }
557 s390_aghi (code, STK_BASE, stackSize);
558 }
559 return (code);
560 }
561
562 /*========================= End of Function ========================*/
563
564 /*------------------------------------------------------------------*/
565 /* */
566 /* Name - indent */
567 /* */
568 /* Function - Perform nice indenting to current level */
569 /* */
570 /*------------------------------------------------------------------*/
571
572 static void
573 indent (int diff) {
574 int v;
575 if (diff < 0)
576 indent_level += diff;
577 v = indent_level;
578 printf("[%3d] ",v);
579 while (v-- > 0) {
580 printf (". ");
581 }
582 if (diff > 0)
583 indent_level += diff;
584 }
585
586 /*========================= End of Function ========================*/
587
588 /*------------------------------------------------------------------*/
589 /* */
590 /* Name - decodeParm */
591 /* */
592 /* Function - Decode a parameter for the trace. */
593 /* */
594 /*------------------------------------------------------------------*/
595
596 static void
597 decodeParm(MonoType *type, void *curParm, int size)
598 {
599 guint32 simpleType;
600
601 if (type->byref) {
602 printf("[BYREF:%p], ", *((char **) curParm));
603 } else {
604 simpleType = mono_type_get_underlying_type(type)->type;
605 enum_parmtype:
606 switch (simpleType) {
607 case MONO_TYPE_I :
608 printf ("[INTPTR:%p], ", *((int **) curParm));
609 break;
610 case MONO_TYPE_U :
611 printf ("[UINTPTR:%p], ", *((int **) curParm));
612 break;
613 case MONO_TYPE_BOOLEAN :
614 printf ("[BOOL:%ld], ", *((gint64 *) curParm));
615 break;
616 case MONO_TYPE_CHAR :
617 printf ("[CHAR:%c], ", *((int *) curParm));
618 break;
619 case MONO_TYPE_I1 :
620 printf ("[INT1:%ld], ", *((gint64 *) curParm));
621 break;
622 case MONO_TYPE_I2 :
623 printf ("[INT2:%ld], ", *((gint64 *) curParm));
624 break;
625 case MONO_TYPE_I4 :
626 printf ("[INT4:%ld], ", *((gint64 *) curParm));
627 break;
628 case MONO_TYPE_U1 :
629 printf ("[UINT1:%lu], ", *((guint64 *) curParm));
630 break;
631 case MONO_TYPE_U2 :
632 printf ("[UINT2:%lu], ", *((guint64 *) curParm));
633 break;
634 case MONO_TYPE_U4 :
635 printf ("[UINT4:%lu], ", *((guint64 *) curParm));
636 break;
637 case MONO_TYPE_U8 :
638 printf ("[UINT8:%lu], ", *((guint64 *) curParm));
639 break;
640 case MONO_TYPE_STRING : {
641 MonoString *s = *((MonoString **) curParm);
642 if (s) {
643 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
644 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
645 } else {
646 printf("[STRING:null], ");
647 }
648 break;
649 }
650 case MONO_TYPE_CLASS :
651 case MONO_TYPE_OBJECT : {
652 MonoObject *obj = *((MonoObject **) curParm);
653 MonoClass *class;
654 if ((obj) && (obj->vtable)) {
655 printf("[CLASS/OBJ:");
656 class = obj->vtable->klass;
657 printf("%p [%p] ",obj,curParm);
658 if (class == mono_defaults.string_class) {
659 printf("[STRING:%p:%s]",
660 obj, mono_string_to_utf8 ((MonoString *) obj));
661 } else if (class == mono_defaults.int32_class) {
662 printf("[INT32:%p:%d]",
663 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
664 } else
665 printf("[%s.%s:%p]",
666 class->name_space, class->name, obj);
667 printf("], ");
668 } else {
669 printf("[OBJECT:null], ");
670 }
671 break;
672 }
673 case MONO_TYPE_PTR :
674 printf("[PTR:%p], ", *((gpointer **) (curParm)));
675 break;
676 case MONO_TYPE_FNPTR :
677 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
678 break;
679 case MONO_TYPE_ARRAY :
680 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
681 break;
682 case MONO_TYPE_SZARRAY :
683 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
684 break;
685 case MONO_TYPE_I8 :
686 printf("[INT8:%ld], ", *((gint64 *) (curParm)));
687 break;
688 case MONO_TYPE_R4 :
689 printf("[FLOAT4:%g], ", *((float *) (curParm)));
690 break;
691 case MONO_TYPE_R8 :
692 printf("[FLOAT8:%g], ", *((double *) (curParm)));
693 break;
694 case MONO_TYPE_VALUETYPE : {
695 int i;
696 MonoMarshalType *info;
697
698 if (type->data.klass->enumtype) {
699 simpleType = mono_class_enum_basetype (type->data.klass)->type;
700 printf("{VALUETYPE} - ");
701 goto enum_parmtype;
702 }
703
704 info = mono_marshal_load_type_info (type->data.klass);
705
706 if ((info->native_size == sizeof(float)) &&
707 (info->num_fields == 1) &&
708 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
709 printf("[FLOAT4:%f], ", *((float *) (curParm)));
710 break;
711 }
712
713 if ((info->native_size == sizeof(double)) &&
714 (info->num_fields == 1) &&
715 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
716 printf("[FLOAT8:%g], ", *((double *) (curParm)));
717 break;
718 }
719
720 printf("[VALUETYPE:");
721 for (i = 0; i < size; i++)
722 printf("%02x,", *((guint8 *)curParm+i));
723 printf("]");
724 break;
725 }
726 case MONO_TYPE_TYPEDBYREF: {
727 int i;
728 printf("[TYPEDBYREF:");
729 for (i = 0; i < size; i++)
730 printf("%02x,", *((guint8 *)curParm+i));
731 printf("]");
732 break;
733 }
734 default :
735 printf("[?? - %d], ",simpleType);
736 }
737 }
738 }
739
740 /*========================= End of Function ========================*/
741
742 /*------------------------------------------------------------------*/
743 /* */
744 /* Name - enter_method */
745 /* */
746 /* Function - Perform tracing of the entry to the current */
747 /* method. */
748 /* */
749 /*------------------------------------------------------------------*/
750
751 static void
752 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
753 {
754 int i, oParm = 0, iParm = 0;
755 MonoClass *class;
756 MonoObject *obj;
757 MonoMethodSignature *sig;
758 char *fname;
759 guint64 ip;
760 CallInfo *cinfo;
761 ArgInfo *ainfo;
762 void *curParm;
763
764 fname = mono_method_full_name (method, TRUE);
765 indent (1);
766 printf ("ENTER: %s ", fname);
767 g_free (fname);
768
769 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
770 printf ("ip: %p sp: %p - ", (gpointer) ip, sp);
771
772 if (rParm == NULL)
773 return;
774
775 sig = mono_method_signature (method);
776
777 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
778
779 if (cinfo->struct_ret) {
780 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
781 iParm = 1;
782 }
783
784 if (sig->hasthis) {
785 gpointer *this = (gpointer *) rParm->gr[iParm];
786 obj = (MonoObject *) this;
787 if (method->klass->valuetype) {
788 if (obj) {
789 printf("this:[value:%p:%016lx], ",
790 this, *((guint64 *)(this+sizeof(MonoObject))));
791 } else
792 printf ("this:[NULL], ");
793 } else {
794 if (obj) {
795 class = obj->vtable->klass;
796 if (class == mono_defaults.string_class) {
797 printf ("this:[STRING:%p:%s], ",
798 obj, mono_string_to_utf8 ((MonoString *)obj));
799 } else {
800 printf ("this:%p[%s.%s], ",
801 obj, class->name_space, class->name);
802 }
803 } else
804 printf ("this:NULL, ");
805 }
806 oParm++;
807 }
808
809 for (i = 0; i < sig->param_count; ++i) {
810 ainfo = &cinfo->args[i + oParm];
811 switch (ainfo->regtype) {
812 case RegTypeGeneral :
813 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
814 break;
815 case RegTypeFP :
816 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
817 break;
818 case RegTypeBase :
819 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
820 break;
821 case RegTypeStructByVal :
822 if (ainfo->reg != STK_BASE) {
823 int offset = sizeof(glong) - ainfo->size;
824 curParm = &(rParm->gr[ainfo->reg-2])+offset;
825 }
826 else
827 curParm = sp+ainfo->offset;
828
829 if (retFitsInReg (ainfo->vtsize))
830 decodeParm(sig->params[i],
831 curParm,
832 ainfo->size);
833 else
834 decodeParm(sig->params[i],
835 *((char **) curParm),
836 ainfo->vtsize);
837 break;
838 case RegTypeStructByAddr :
839 if (ainfo->reg != STK_BASE)
840 curParm = &(rParm->gr[ainfo->reg-2]);
841 else
842 curParm = sp+ainfo->offset;
843
844 decodeParm(sig->params[i],
845 *((char **) curParm),
846 ainfo->vtsize);
847 break;
848
849 default :
850 printf("???, ");
851 }
852 }
853 printf("\n");
854 g_free(cinfo);
855 }
856
857 /*========================= End of Function ========================*/
858
859 /*------------------------------------------------------------------*/
860 /* */
861 /* Name - leave_method */
862 /* */
863 /* Function - */
864 /* */
865 /*------------------------------------------------------------------*/
866
867 static void
868 leave_method (MonoMethod *method, ...)
869 {
870 MonoType *type;
871 char *fname;
872 guint64 ip;
873 va_list ap;
874
875 va_start(ap, method);
876
877 fname = mono_method_full_name (method, TRUE);
878 indent (-1);
879 printf ("LEAVE: %s", fname);
880 g_free (fname);
881
882 type = mono_method_signature (method)->ret;
883
884 handle_enum:
885 switch (type->type) {
886 case MONO_TYPE_VOID:
887 break;
888 case MONO_TYPE_BOOLEAN: {
889 int val = va_arg (ap, int);
890 if (val)
891 printf ("[TRUE:%d]", val);
892 else
893 printf ("[FALSE]");
894
895 break;
896 }
897 case MONO_TYPE_CHAR: {
898 int val = va_arg (ap, int);
899 printf ("[CHAR:%d]", val);
900 break;
901 }
902 case MONO_TYPE_I1: {
903 int val = va_arg (ap, int);
904 printf ("[INT1:%d]", val);
905 break;
906 }
907 case MONO_TYPE_U1: {
908 int val = va_arg (ap, int);
909 printf ("[UINT1:%d]", val);
910 break;
911 }
912 case MONO_TYPE_I2: {
913 int val = va_arg (ap, int);
914 printf ("[INT2:%d]", val);
915 break;
916 }
917 case MONO_TYPE_U2: {
918 int val = va_arg (ap, int);
919 printf ("[UINT2:%d]", val);
920 break;
921 }
922 case MONO_TYPE_I4: {
923 int val = va_arg (ap, int);
924 printf ("[INT4:%d]", val);
925 break;
926 }
927 case MONO_TYPE_U4: {
928 int val = va_arg (ap, int);
929 printf ("[UINT4:%d]", val);
930 break;
931 }
932 case MONO_TYPE_I: {
933 gint64 val = va_arg (ap, gint64);
934 printf ("[INT:%ld]", val);
935 printf("]");
936 break;
937 }
938 case MONO_TYPE_U: {
939 gint64 val = va_arg (ap, gint64);
940 printf ("[UINT:%lu]", val);
941 printf("]");
942 break;
943 }
944 case MONO_TYPE_STRING: {
945 MonoString *s = va_arg (ap, MonoString *);
946 ;
947 if (s) {
948 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
949 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
950 } else
951 printf ("[STRING:null], ");
952 break;
953 }
954 case MONO_TYPE_CLASS:
955 case MONO_TYPE_OBJECT: {
956 MonoObject *o = va_arg (ap, MonoObject *);
957
958 if ((o) && (o->vtable)) {
959 if (o->vtable->klass == mono_defaults.boolean_class) {
960 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
961 } else if (o->vtable->klass == mono_defaults.int32_class) {
962 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
963 } else if (o->vtable->klass == mono_defaults.int64_class) {
964 printf ("[INT64:%p:%ld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
965 } else
966 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
967 } else
968 printf ("[OBJECT:%p]", o);
969
970 break;
971 }
972 case MONO_TYPE_PTR:
973 case MONO_TYPE_FNPTR:
974 case MONO_TYPE_ARRAY:
975 case MONO_TYPE_SZARRAY: {
976 gpointer p = va_arg (ap, gpointer);
977 printf ("[result=%p]", p);
978 break;
979 }
980 case MONO_TYPE_I8: {
981 gint64 l = va_arg (ap, gint64);
982 printf ("[LONG:%ld]", l);
983 break;
984 }
985 case MONO_TYPE_U8: {
986 guint64 l = va_arg (ap, guint64);
987 printf ("[ULONG:%lu]", l);
988 break;
989 }
990 case MONO_TYPE_R4: {
991 double f = va_arg (ap, double);
992 printf ("[FLOAT4:%g]\n", f);
993 break;
994 }
995 case MONO_TYPE_R8: {
996 double f = va_arg (ap, double);
997 printf ("[FLOAT8:%g]\n", f);
998 break;
999 }
1000 case MONO_TYPE_VALUETYPE: {
1001 MonoMarshalType *info;
1002 if (type->data.klass->enumtype) {
1003 type = mono_class_enum_basetype (type->data.klass);
1004 goto handle_enum;
1005 } else {
1006 int size, align;
1007
1008 info = mono_marshal_load_type_info (type->data.klass);
1009
1010 if ((info->native_size == sizeof(float)) &&
1011 (info->num_fields == 1) &&
1012 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1013 double f = va_arg (ap, double);
1014 printf("[FLOAT4:%g]\n", (double) f);
1015 break;
1016 }
1017
1018 if ((info->native_size == sizeof(double)) &&
1019 (info->num_fields == 1) &&
1020 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1021 double f = va_arg (ap, double);
1022 printf("[FLOAT8:%g]\n", f);
1023 break;
1024 }
1025
1026 size = mono_type_size (type, &align);
1027 switch (size) {
1028 case 1: {
1029 guint32 p = va_arg (ap, guint32);
1030 printf ("[%02x]\n",p);
1031 break;
1032 }
1033 case 2: {
1034 guint32 p = va_arg (ap, guint32);
1035 printf ("[%04x]\n",p);
1036 break;
1037 }
1038 case 4: {
1039 guint32 p = va_arg (ap, guint32);
1040 printf ("[%08x]\n",p);
1041 break;
1042 }
1043 case 8: {
1044 guint64 p = va_arg (ap, guint64);
1045 printf ("[%016lx]\n",p);
1046 break;
1047 }
1048 default: {
1049 gpointer p = va_arg (ap, gpointer);
1050 printf ("[VALUETYPE] %p\n",p);
1051 }
1052 }
1053 }
1054 break;
1055 }
1056 case MONO_TYPE_TYPEDBYREF: {
1057 guint8 *p = va_arg (ap, gpointer);
1058 int j, size, align;
1059 size = mono_type_size (type, &align);
1060 switch (size) {
1061 case 1:
1062 case 2:
1063 case 4:
1064 case 8:
1065 printf ("[");
1066 for (j = 0; p && j < size; j++)
1067 printf ("%02x,", p [j]);
1068 printf ("]\n");
1069 break;
1070 default:
1071 printf ("[TYPEDBYREF]\n");
1072 }
1073 }
1074 break;
1075 default:
1076 printf ("(unknown return type %x)",
1077 mono_method_signature (method)->ret->type);
1078 }
1079
1080 ip = ((gint64) __builtin_return_address (0));
1081 printf (" ip: %p\n", (gpointer) ip);
1082 }
1083
1084 /*========================= End of Function ========================*/
1085
1086 /*------------------------------------------------------------------*/
1087 /* */
1088 /* Name - catch_SIGILL */
1089 /* */
1090 /* Function - Catch SIGILL as a result of testing for long */
1091 /* displacement facility. */
1092 /* */
1093 /*------------------------------------------------------------------*/
1094
1095 void
1096 catch_SIGILL(int sigNo, siginfo_t *info, void *act) {
1097
1098 has_ld = 0;
1099
1100 }
1101
1102 /*========================= End of Function ========================*/
1103
1104 /*------------------------------------------------------------------*/
1105 /* */
1106 /* Name - mono_arch_cpu_init */
1107 /* */
1108 /* Function - Perform CPU specific initialization to execute */
1109 /* managed code. */
1110 /* */
1111 /*------------------------------------------------------------------*/
1112
1113 void
1114 mono_arch_cpu_init (void)
1115 {
1116 struct sigaction sa,
1117 *oldSa = NULL;
1118 guint mode = 1;
1119
1120 /*--------------------------------------*/
1121 /* Set default rounding mode for FP */
1122 /*--------------------------------------*/
1123 __asm__ ("SRNM\t%0\n\t"
1124 : : "m" (mode));
1125
1126 /*--------------------------------------*/
1127 /* Determine if we have long displace- */
1128 /* ment facility on this processor */
1129 /*--------------------------------------*/
1130 sa.sa_sigaction = catch_SIGILL;
1131 sigemptyset (&sa.sa_mask);
1132 sa.sa_flags = SA_SIGINFO;
1133
1134 sigaction (SIGILL, &sa, oldSa);
1135
1136 /*--------------------------------------*/
1137 /* We test by executing the STY inst */
1138 /*--------------------------------------*/
1139 __asm__ ("LGHI\t0,1\n\t"
1140 "LA\t1,%0\n\t"
1141 ".byte\t0xe3,0x00,0x10,0x00,0x00,0x50\n\t"
1142 : "=m" (has_ld) : : "0", "1");
1143
1144 sigaction (SIGILL, oldSa, NULL);
1145 }
1146
1147 /*========================= End of Function ========================*/
1148
1149 /*------------------------------------------------------------------*/
1150 /* */
1151 /* Name - mono_arch_init. */
1152 /* */
1153 /* Function - Initialize architecture specific code. */
1154 /* */
1155 /*------------------------------------------------------------------*/
1156
1157 void
1158 mono_arch_init (void)
1159 {
1160 #if 0
1161 /*
1162 * When we do an architectural level set at z9 or better
1163 * we can use the STFLE instruction to show us
1164 * what hardware facilities are available
1165 */
1166 int lFacility = sizeof(facs) % 8;
1167
1168 memset((char *) &facs, 0, sizeof(facs));
1169
1170 __asm__ (" lgfr 0,%1\n"
1171 " stfle %0\n"
1172 : "=m" (facs) : "r" (lFacility) : "0", "cc");
1173 #endif
1174
1175 }
1176
1177 /*========================= End of Function ========================*/
1178
1179 /*------------------------------------------------------------------*/
1180 /* */
1181 /* Name - mono_arch_cleanup. */
1182 /* */
1183 /* Function - Cleanup architecture specific code . */
1184 /* */
1185 /*------------------------------------------------------------------*/
1186
1187 void
1188 mono_arch_cleanup (void)
1189 {
1190 }
1191
1192 /*========================= End of Function ========================*/
1193
1194 /*------------------------------------------------------------------*/
1195 /* */
1196 /* Name - mono_arch_cpu_optimizazions */
1197 /* */
1198 /* Function - Returns the optimizations supported on this CPU */
1199 /* */
1200 /*------------------------------------------------------------------*/
1201
1202 guint32
1203 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1204 {
1205 guint32 opts = 0;
1206
1207 /*----------------------------------------------------------*/
1208 /* No s390-specific optimizations yet */
1209 /*----------------------------------------------------------*/
1210 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1211 // *exclude_mask = MONO_OPT_INLINE;
1212 return opts;
1213 }
1214
1215 /*========================= End of Function ========================*/
1216
1217 /*------------------------------------------------------------------*/
1218 /* */
1219 /* Name - */
1220 /* */
1221 /* Function - */
1222 /* */
1223 /*------------------------------------------------------------------*/
1224
1225 static gboolean
1226 is_regsize_var (MonoType *t) {
1227 if (t->byref)
1228 return TRUE;
1229 switch (mono_type_get_underlying_type (t)->type) {
1230 case MONO_TYPE_I4:
1231 case MONO_TYPE_U4:
1232 case MONO_TYPE_I:
1233 case MONO_TYPE_I8:
1234 case MONO_TYPE_U8:
1235 case MONO_TYPE_U:
1236 case MONO_TYPE_PTR:
1237 case MONO_TYPE_FNPTR:
1238 return TRUE;
1239 case MONO_TYPE_OBJECT:
1240 case MONO_TYPE_STRING:
1241 case MONO_TYPE_CLASS:
1242 case MONO_TYPE_SZARRAY:
1243 case MONO_TYPE_ARRAY:
1244 return FALSE;
1245 case MONO_TYPE_VALUETYPE:
1246 if (t->data.klass->enumtype)
1247 return is_regsize_var (mono_class_enum_basetype (t->data.klass));
1248 return FALSE;
1249 }
1250 return FALSE;
1251 }
1252
1253 /*========================= End of Function ========================*/
1254
1255 /*------------------------------------------------------------------*/
1256 /* */
1257 /* Name - mono_arch_get_allocatable_int_vars */
1258 /* */
1259 /* Function - */
1260 /* */
1261 /*------------------------------------------------------------------*/
1262
1263 GList *
1264 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1265 {
1266 GList *vars = NULL;
1267 int i;
1268
1269 for (i = 0; i < cfg->num_varinfo; i++) {
1270 MonoInst *ins = cfg->varinfo [i];
1271 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1272
1273 /* unused vars */
1274 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1275 continue;
1276
1277 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1278 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1279 continue;
1280
1281 /* we can only allocate 32 bit values */
1282 if (is_regsize_var (ins->inst_vtype)) {
1283 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1284 g_assert (i == vmv->idx);
1285 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1286 }
1287 }
1288
1289 return vars;
1290 }
1291
1292 /*========================= End of Function ========================*/
1293
1294 /*------------------------------------------------------------------*/
1295 /* */
1296 /* Name - mono_arch_global_int_regs */
1297 /* */
1298 /* Function - Return a list of usable integer registers. */
1299 /* */
1300 /*------------------------------------------------------------------*/
1301
1302 GList *
1303 mono_arch_get_global_int_regs (MonoCompile *cfg)
1304 {
1305 GList *regs = NULL;
1306 MonoMethodHeader *header;
1307 int i, top = 13;
1308
1309 header = cfg->header;
1310 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1311 cfg->frame_reg = s390_r11;
1312
1313
1314 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1315 top = 12;
1316 for (i = 8; i < top; ++i) {
1317 if (cfg->frame_reg != i)
1318 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1319 }
1320
1321 return regs;
1322 }
1323
1324 /*========================= End of Function ========================*/
1325
1326 /*------------------------------------------------------------------*/
1327 /* */
1328 /* Name - mono_arch_flush_icache */
1329 /* */
1330 /* Function - Flush the CPU icache. */
1331 /* */
1332 /*------------------------------------------------------------------*/
1333
1334 void
1335 mono_arch_flush_icache (guint8 *code, gint size)
1336 {
1337 }
1338
1339 /*========================= End of Function ========================*/
1340
1341 /*------------------------------------------------------------------*/
1342 /* */
1343 /* Name - add_general */
1344 /* */
1345 /* Function - Determine code and stack size incremements for a */
1346 /* parameter. */
1347 /* */
1348 /*------------------------------------------------------------------*/
1349
1350 // static void inline
1351 static void
1352 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1353 {
1354 if (*gr > S390_LAST_ARG_REG) {
1355 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1356 ainfo->offset = sz->stack_size;
1357 ainfo->reg = STK_BASE;
1358 ainfo->regtype = RegTypeBase;
1359 sz->stack_size += sizeof(long);
1360 sz->local_size += sizeof(long);
1361 sz->offStruct += sizeof(long);
1362 sz->code_size += 12;
1363 } else {
1364 ainfo->reg = *gr;
1365 sz->code_size += 8;
1366 }
1367 (*gr) ++;
1368 }
1369
1370 /*========================= End of Function ========================*/
1371
1372 /*------------------------------------------------------------------*/
1373 /* */
1374 /* Name - add_stackParm */
1375 /* */
1376 /* Function - Determine code and stack size incremements for a */
1377 /* parameter. */
1378 /* */
1379 /*------------------------------------------------------------------*/
1380
1381 static void inline
1382 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1383 {
1384 if (*gr > S390_LAST_ARG_REG) {
1385 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1386 ainfo->reg = STK_BASE;
1387 ainfo->offset = sz->stack_size;
1388 ainfo->regtype = RegTypeStructByAddrOnStack;
1389 sz->stack_size += sizeof (gpointer);
1390 sz->parm_size += sizeof(gpointer);
1391 sz->offStruct += sizeof(gpointer);
1392 } else {
1393 ainfo->reg = *gr;
1394 ainfo->offset = sz->stack_size;
1395 ainfo->regtype = RegTypeStructByAddr;
1396 }
1397 (*gr) ++;
1398 ainfo->offparm = sz->offset;
1399 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1400 ainfo->size = size;
1401 ainfo->vtsize = size;
1402 sz->parm_size += size;
1403 }
1404
1405 /*========================= End of Function ========================*/
1406
1407 /*------------------------------------------------------------------*/
1408 /* */
1409 /* Name - add_float */
1410 /* */
1411 /* Function - Determine code and stack size incremements for a */
1412 /* float parameter. */
1413 /* */
1414 /*------------------------------------------------------------------*/
1415
1416 static void inline
1417 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1418 {
1419 if ((*fr) <= S390_LAST_FPARG_REG) {
1420 ainfo->regtype = RegTypeFP;
1421 ainfo->reg = *fr;
1422 sz->code_size += 4;
1423 (*fr) += 2;
1424 }
1425 else {
1426 ainfo->offset = sz->stack_size;
1427 ainfo->reg = STK_BASE;
1428 ainfo->regtype = RegTypeBase;
1429 sz->code_size += 4;
1430 sz->stack_size += sizeof(double);
1431 sz->local_size += sizeof(double);
1432 sz->offStruct += sizeof(double);
1433 }
1434 }
1435
1436 /*========================= End of Function ========================*/
1437
1438 /*------------------------------------------------------------------*/
1439 /* */
1440 /* Name - get_call_info */
1441 /* */
1442 /* Function - Determine the amount of space required for code */
1443 /* and stack. In addition determine starting points */
1444 /* for stack-based parameters, and area for struct- */
1445 /* ures being returned on the stack. */
1446 /* */
1447 /*------------------------------------------------------------------*/
1448
1449 static CallInfo *
1450 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1451 {
1452 guint i, fr, gr, size;
1453 int nParm = sig->hasthis + sig->param_count;
1454 MonoType *ret_type;
1455 guint32 simpletype, align;
1456 CallInfo *cinfo;
1457 size_data *sz;
1458 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1459
1460 if (mp)
1461 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1462 else
1463 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1464
1465 fr = 0;
1466 gr = s390_r2;
1467 nParm = 0;
1468 cinfo->struct_ret = 0;
1469 sz = &cinfo->sz;
1470 sz->retStruct = 0;
1471 sz->offset = 0;
1472 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1473 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1474 sz->code_size = 0;
1475 sz->parm_size = 0;
1476 sz->local_size = 0;
1477
1478 /*----------------------------------------------------------*/
1479 /* We determine the size of the return code/stack in case we*/
1480 /* need to reserve a register to be used to address a stack */
1481 /* area that the callee will use. */
1482 /*----------------------------------------------------------*/
1483
1484 ret_type = mono_type_get_underlying_type (sig->ret);
1485 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1486 simpletype = ret_type->type;
1487 enum_retvalue:
1488 switch (simpletype) {
1489 case MONO_TYPE_BOOLEAN:
1490 case MONO_TYPE_I1:
1491 case MONO_TYPE_U1:
1492 case MONO_TYPE_I2:
1493 case MONO_TYPE_U2:
1494 case MONO_TYPE_CHAR:
1495 case MONO_TYPE_I4:
1496 case MONO_TYPE_U4:
1497 case MONO_TYPE_I:
1498 case MONO_TYPE_U:
1499 case MONO_TYPE_CLASS:
1500 case MONO_TYPE_OBJECT:
1501 case MONO_TYPE_SZARRAY:
1502 case MONO_TYPE_ARRAY:
1503 case MONO_TYPE_PTR:
1504 case MONO_TYPE_FNPTR:
1505 case MONO_TYPE_STRING:
1506 cinfo->ret.reg = s390_r2;
1507 sz->code_size += 4;
1508 break;
1509 case MONO_TYPE_R4:
1510 case MONO_TYPE_R8:
1511 cinfo->ret.reg = s390_f0;
1512 sz->code_size += 4;
1513 break;
1514 case MONO_TYPE_I8:
1515 case MONO_TYPE_U8:
1516 cinfo->ret.reg = s390_r2;
1517 sz->code_size += 4;
1518 break;
1519 case MONO_TYPE_GENERICINST:
1520 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1521 cinfo->ret.reg = s390_r2;
1522 sz->code_size += 4;
1523 break;
1524 }
1525 /* Fall through */
1526 case MONO_TYPE_VALUETYPE: {
1527 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1528 if (klass->enumtype) {
1529 simpletype = mono_class_enum_basetype (klass)->type;
1530 goto enum_retvalue;
1531 }
1532 if (sig->pinvoke)
1533 size = mono_class_native_size (klass, &align);
1534 else
1535 size = mono_class_value_size (klass, &align);
1536
1537 cinfo->ret.reg = s390_r2;
1538 cinfo->struct_ret = 1;
1539 cinfo->ret.size = size;
1540 cinfo->ret.vtsize = size;
1541 gr++;
1542 break;
1543 }
1544 case MONO_TYPE_TYPEDBYREF:
1545 size = sizeof (MonoTypedRef);
1546 cinfo->ret.reg = s390_r2;
1547 cinfo->struct_ret = 1;
1548 cinfo->ret.size = size;
1549 cinfo->ret.vtsize = size;
1550 gr++;
1551 break;
1552 case MONO_TYPE_VOID:
1553 break;
1554 default:
1555 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1556 }
1557
1558 if (sig->hasthis) {
1559 cinfo->args[nParm].size = sizeof(gpointer);
1560 add_general (&gr, sz, cinfo->args+nParm);
1561 nParm++;
1562 }
1563
1564 if ((sig->call_convention == MONO_CALL_VARARG) && (sig->param_count == 0)) {
1565 gr = S390_LAST_ARG_REG + 1;
1566
1567 /* Emit the signature cookie just before the implicit arguments */
1568 add_general (&gr, sz, &cinfo->sigCookie);
1569 }
1570
1571 /*----------------------------------------------------------*/
1572 /* We determine the size of the parameter code and stack */
1573 /* requirements by checking the types and sizes of the */
1574 /* parameters. */
1575 /*----------------------------------------------------------*/
1576
1577 for (i = 0; i < sig->param_count; ++i) {
1578 MonoType *ptype;
1579
1580 /*--------------------------------------------------*/
1581 /* Handle vararg type calls. All args are put on */
1582 /* the stack. */
1583 /*--------------------------------------------------*/
1584 if ((sig->call_convention == MONO_CALL_VARARG) &&
1585 (i == sig->sentinelpos)) {
1586 gr = S390_LAST_ARG_REG + 1;
1587 add_general (&gr, sz, &cinfo->sigCookie);
1588 }
1589
1590 if (sig->params [i]->byref) {
1591 add_general (&gr, sz, cinfo->args+nParm);
1592 cinfo->args[nParm].size = sizeof(gpointer);
1593 nParm++;
1594 continue;
1595 }
1596
1597 ptype = mono_type_get_underlying_type (sig->params [i]);
1598 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1599 simpletype = ptype->type;
1600 cinfo->args[nParm].type = simpletype;
1601 switch (simpletype) {
1602 case MONO_TYPE_BOOLEAN:
1603 case MONO_TYPE_I1:
1604 case MONO_TYPE_U1:
1605 cinfo->args[nParm].size = sizeof(char);
1606 add_general (&gr, sz, cinfo->args+nParm);
1607 nParm++;
1608 break;
1609 case MONO_TYPE_I2:
1610 case MONO_TYPE_U2:
1611 case MONO_TYPE_CHAR:
1612 cinfo->args[nParm].size = sizeof(short);
1613 add_general (&gr, sz, cinfo->args+nParm);
1614 nParm++;
1615 break;
1616 case MONO_TYPE_I4:
1617 case MONO_TYPE_U4:
1618 cinfo->args[nParm].size = sizeof(int);
1619 add_general (&gr, sz, cinfo->args+nParm);
1620 nParm++;
1621 break;
1622 case MONO_TYPE_I:
1623 case MONO_TYPE_U:
1624 case MONO_TYPE_PTR:
1625 case MONO_TYPE_FNPTR:
1626 case MONO_TYPE_CLASS:
1627 case MONO_TYPE_OBJECT:
1628 case MONO_TYPE_STRING:
1629 case MONO_TYPE_SZARRAY:
1630 case MONO_TYPE_ARRAY:
1631 cinfo->args[nParm].size = sizeof(gpointer);
1632 add_general (&gr, sz, cinfo->args+nParm);
1633 nParm++;
1634 break;
1635 case MONO_TYPE_I8:
1636 case MONO_TYPE_U8:
1637 cinfo->args[nParm].size = sizeof(long long);
1638 add_general (&gr, sz, cinfo->args+nParm);
1639 nParm++;
1640 break;
1641 case MONO_TYPE_R4:
1642 cinfo->args[nParm].size = sizeof(float);
1643 add_float (&fr, sz, cinfo->args+nParm);
1644 nParm++;
1645 break;
1646 case MONO_TYPE_R8:
1647 cinfo->args[nParm].size = sizeof(double);
1648 add_float (&fr, sz, cinfo->args+nParm);
1649 nParm++;
1650 break;
1651 case MONO_TYPE_GENERICINST:
1652 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1653 cinfo->args[nParm].size = sizeof(gpointer);
1654 add_general (&gr, sz, cinfo->args+nParm);
1655 nParm++;
1656 break;
1657 }
1658 /* Fall through */
1659 case MONO_TYPE_VALUETYPE: {
1660 MonoMarshalType *info;
1661 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1662 if (sig->pinvoke)
1663 size = mono_class_native_size (klass, &align);
1664 else
1665 size = mono_class_value_size (klass, &align);
1666
1667 info = mono_marshal_load_type_info (klass);
1668
1669 if ((info->native_size == sizeof(float)) &&
1670 (info->num_fields == 1) &&
1671 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1672 cinfo->args[nParm].size = sizeof(float);
1673 add_float(&fr, sz, cinfo->args+nParm);
1674 nParm ++;
1675 break;
1676 }
1677
1678 if ((info->native_size == sizeof(double)) &&
1679 (info->num_fields == 1) &&
1680 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1681 cinfo->args[nParm].size = sizeof(double);
1682 add_float(&fr, sz, cinfo->args+nParm);
1683 nParm ++;
1684 break;
1685 }
1686
1687 cinfo->args[nParm].vtsize = 0;
1688 cinfo->args[nParm].size = 0;
1689
1690 switch (size) {
1691 /*----------------------------------*/
1692 /* On S/390, structures of size 1, */
1693 /* 2, 4, and 8 bytes are passed in */
1694 /* (a) register(s). */
1695 /*----------------------------------*/
1696 case 0:
1697 case 1:
1698 case 2:
1699 case 4:
1700 case 8:
1701 add_general(&gr, sz, cinfo->args+nParm);
1702 cinfo->args[nParm].size = size;
1703 cinfo->args[nParm].regtype = RegTypeStructByVal;
1704 nParm++;
1705 sz->local_size += sizeof(long);
1706 break;
1707 default:
1708 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1709 nParm++;
1710 }
1711 }
1712 break;
1713 case MONO_TYPE_TYPEDBYREF: {
1714 int size = sizeof (MonoTypedRef);
1715
1716 cinfo->args[nParm].vtsize = 0;
1717 cinfo->args[nParm].size = 0;
1718
1719 switch (size) {
1720 /*----------------------------------*/
1721 /* On S/390, structures of size 1, */
1722 /* 2, 4, and 8 bytes are passed in */
1723 /* (a) register(s). */
1724 /*----------------------------------*/
1725 case 0:
1726 case 1:
1727 case 2:
1728 case 4:
1729 case 8:
1730 add_general(&gr, sz, cinfo->args+nParm);
1731 cinfo->args[nParm].size = size;
1732 cinfo->args[nParm].regtype = RegTypeStructByVal;
1733 nParm++;
1734 sz->local_size += sizeof(long);
1735 break;
1736 default:
1737 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1738 nParm++;
1739 }
1740 }
1741 break;
1742 default:
1743 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1744 }
1745 }
1746
1747 /*----------------------------------------------------------*/
1748 /* Handle the case where there are no implicit arguments */
1749 /*----------------------------------------------------------*/
1750 if ((sig->call_convention == MONO_CALL_VARARG) &&
1751 (nParm > 0) &&
1752 (!sig->pinvoke) &&
1753 (sig->param_count == sig->sentinelpos)) {
1754 gr = S390_LAST_ARG_REG + 1;
1755 add_general (&gr, sz, &cinfo->sigCookie);
1756 }
1757
1758 /*----------------------------------------------------------*/
1759 /* If we are passing a structure back then if it won't be */
1760 /* in a register(s) then we make room at the end of the */
1761 /* parameters that may have been placed on the stack */
1762 /*----------------------------------------------------------*/
1763 if (cinfo->struct_ret) {
1764 cinfo->ret.offset = sz->stack_size;
1765 switch (cinfo->ret.size) {
1766 case 0:
1767 case 1:
1768 case 2:
1769 case 4:
1770 case 8:
1771 break;
1772 default:
1773 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1774 }
1775 }
1776
1777 cinfo->lastgr = gr;
1778 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1779 sz->offset;
1780 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1781
1782 return (cinfo);
1783 }
1784
1785 /*========================= End of Function ========================*/
1786
1787 /*------------------------------------------------------------------*/
1788 /* */
1789 /* Name - mono_arch_allocate_vars */
1790 /* */
1791 /* Function - Set var information according to the calling */
1792 /* convention for S/390. The local var stuff should */
1793 /* most likely be split in another method. */
1794 /* */
1795 /* Parameter - @m - Compile unit. */
1796 /* */
1797 /*------------------------------------------------------------------*/
1798
1799 void
1800 mono_arch_allocate_vars (MonoCompile *cfg)
1801 {
1802 MonoMethodSignature *sig;
1803 MonoMethodHeader *header;
1804 MonoInst *inst;
1805 CallInfo *cinfo;
1806 int iParm, iVar, offset, align, size, curinst;
1807 int frame_reg = STK_BASE;
1808 int sArg, eArg;
1809
1810 header = cfg->header;
1811
1812 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1813
1814 /*---------------------------------------------------------*/
1815 /* We use the frame register also for any method that has */
1816 /* filter clauses. This way, when the handlers are called, */
1817 /* the code will reference local variables using the frame */
1818 /* reg instead of the stack pointer: if we had to restore */
1819 /* the stack pointer, we'd corrupt the method frames that */
1820 /* are already on the stack (since filters get called */
1821 /* before stack unwinding happens) when the filter code */
1822 /* would call any method. */
1823 /*---------------------------------------------------------*/
1824 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1825 frame_reg = s390_r11;
1826
1827 cfg->frame_reg = frame_reg;
1828
1829 cfg->arch.bkchain_reg = -1;
1830
1831 if (frame_reg != STK_BASE)
1832 cfg->used_int_regs |= 1 << frame_reg;
1833
1834 sig = mono_method_signature (cfg->method);
1835
1836 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1837
1838 if (!cinfo->struct_ret) {
1839 switch (mono_type_get_underlying_type (sig->ret)->type) {
1840 case MONO_TYPE_VOID:
1841 break;
1842 default:
1843 cfg->ret->opcode = OP_REGVAR;
1844 cfg->ret->dreg = s390_r2;
1845 break;
1846 }
1847 }
1848
1849 /*--------------------------------------------------------------*/
1850 /* local vars are at a positive offset from the stack pointer */
1851 /* also note that if the function uses alloca, we use s390_r11 */
1852 /* to point at the local variables. */
1853 /* add parameter area size for called functions */
1854 /*--------------------------------------------------------------*/
1855 if (cfg->param_area == 0)
1856 offset = S390_MINIMAL_STACK_SIZE;
1857 else
1858 offset = cfg->param_area;
1859
1860 cfg->sig_cookie = 0;
1861
1862 if (cinfo->struct_ret) {
1863 inst = cfg->vret_addr;
1864 offset = S390_ALIGN(offset, sizeof(gpointer));
1865 inst->inst_offset = offset;
1866 inst->opcode = OP_REGOFFSET;
1867 inst->inst_basereg = frame_reg;
1868 offset += sizeof(gpointer);
1869 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1870 printf ("vret_addr =");
1871 mono_print_ins (cfg->vret_addr);
1872 }
1873 }
1874
1875 if (sig->hasthis) {
1876 inst = cfg->args [0];
1877 if (inst->opcode != OP_REGVAR) {
1878 inst->opcode = OP_REGOFFSET;
1879 inst->inst_basereg = frame_reg;
1880 offset = S390_ALIGN(offset, sizeof(gpointer));
1881 inst->inst_offset = offset;
1882 offset += sizeof (gpointer);
1883 }
1884 curinst = sArg = 1;
1885 } else {
1886 curinst = sArg = 0;
1887 }
1888
1889 eArg = sig->param_count + sArg;
1890
1891 if (sig->call_convention == MONO_CALL_VARARG)
1892 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1893
1894 for (iParm = sArg; iParm < eArg; ++iParm) {
1895 inst = cfg->args [curinst];
1896 if (inst->opcode != OP_REGVAR) {
1897 switch (cinfo->args[iParm].regtype) {
1898 case RegTypeStructByAddr : {
1899 MonoInst *indir;
1900
1901 size = sizeof (gpointer);
1902
1903 inst->opcode = OP_REGOFFSET;
1904 inst->inst_basereg = frame_reg;
1905 offset = S390_ALIGN (offset, sizeof (gpointer));
1906 inst->inst_offset = offset;
1907
1908 /* Add a level of indirection */
1909 MONO_INST_NEW (cfg, indir, 0);
1910 *indir = *inst;
1911 inst->opcode = OP_VTARG_ADDR;
1912 inst->inst_left = indir;
1913 }
1914 break;
1915 case RegTypeStructByAddrOnStack : {
1916 MonoInst *indir;
1917
1918 size = sizeof (gpointer);
1919
1920 /* Similar to the == STK_BASE case below */
1921 cfg->arch.bkchain_reg = s390_r12;
1922 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1923
1924 inst->opcode = OP_REGOFFSET;
1925 inst->dreg = mono_alloc_preg (cfg);
1926 inst->inst_basereg = cfg->arch.bkchain_reg;
1927 inst->inst_offset = cinfo->args [iParm].offset;
1928
1929 /* Add a level of indirection */
1930 MONO_INST_NEW (cfg, indir, 0);
1931 *indir = *inst;
1932 inst->opcode = OP_VTARG_ADDR;
1933 inst->inst_left = indir;
1934 break;
1935 }
1936 case RegTypeStructByVal :
1937 size = cinfo->args[iParm].size;
1938 offset = S390_ALIGN(offset, size);
1939 inst->opcode = OP_REGOFFSET;
1940 inst->inst_basereg = frame_reg;
1941 inst->inst_offset = offset;
1942 break;
1943 default :
1944 if (cinfo->args [iParm].reg == STK_BASE) {
1945 /*
1946 * These arguments are in the previous frame, so we can't
1947 * compute their offset from the current frame pointer right
1948 * now, since cfg->stack_offset is not yet known, so dedicate a
1949 * register holding the previous frame pointer.
1950 */
1951 cfg->arch.bkchain_reg = s390_r12;
1952 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1953
1954 inst->opcode = OP_REGOFFSET;
1955 inst->inst_basereg = cfg->arch.bkchain_reg;
1956 size = (cinfo->args[iParm].size < 8
1957 ? 8 - cinfo->args[iParm].size
1958 : 0);
1959 inst->inst_offset = cinfo->args [iParm].offset + size;
1960 size = sizeof (long);
1961 } else {
1962 inst->opcode = OP_REGOFFSET;
1963 inst->inst_basereg = frame_reg;
1964 size = (cinfo->args[iParm].size < 8
1965 ? sizeof(int)
1966 : sizeof(long));
1967 offset = S390_ALIGN(offset, size);
1968 inst->inst_offset = offset;
1969 }
1970 break;
1971 }
1972 if ((sig->call_convention == MONO_CALL_VARARG) &&
1973 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1974 (iParm < sig->sentinelpos))
1975 cfg->sig_cookie += size;
1976
1977 offset += size;
1978 }
1979 curinst++;
1980 }
1981
1982 curinst = cfg->locals_start;
1983 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1984 inst = cfg->varinfo [iVar];
1985 if ((inst->flags & MONO_INST_IS_DEAD) ||
1986 (inst->opcode == OP_REGVAR))
1987 continue;
1988
1989 /*--------------------------------------------------*/
1990 /* inst->backend.is_pinvoke indicates native sized */
1991 /* value typs this is used by the pinvoke wrappers */
1992 /* when they call functions returning structure */
1993 /*--------------------------------------------------*/
1994 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1995 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype),
1996 (guint32 *) &align);
1997 else
1998 size = mono_type_size (inst->inst_vtype, &align);
1999
2000 offset = S390_ALIGN(offset, align);
2001 inst->inst_offset = offset;
2002 inst->opcode = OP_REGOFFSET;
2003 inst->inst_basereg = frame_reg;
2004 offset += size;
2005 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
2006 iVar, inst->inst_offset, size));
2007 }
2008
2009 /*------------------------------------------------------*/
2010 /* Allow space for the trace method stack area if needed*/
2011 /*------------------------------------------------------*/
2012 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
2013 offset += S390_TRACE_STACK_SIZE;
2014
2015 /*------------------------------------------------------*/
2016 /* Reserve space to save LMF and caller saved registers */
2017 /*------------------------------------------------------*/
2018 if (cfg->method->save_lmf)
2019 offset += sizeof (MonoLMF);
2020
2021 /*------------------------------------------------------*/
2022 /* align the offset */
2023 /*------------------------------------------------------*/
2024 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
2025
2026 /*------------------------------------------------------*/
2027 /* Fix offsets for args whose value is in parent frame */
2028 /*------------------------------------------------------*/
2029 for (iParm = sArg; iParm < eArg; ++iParm) {
2030 inst = cfg->args [iParm];
2031
2032 if (inst->opcode == OP_S390_STKARG) {
2033 inst->opcode = OP_REGOFFSET;
2034 inst->inst_offset += cfg->stack_offset;
2035 }
2036 }
2037 }
2038
2039 /*========================= End of Function ========================*/
2040
2041 /*------------------------------------------------------------------*/
2042 /* */
2043 /* Name - mono_arch_create_vars */
2044 /* */
2045 /*------------------------------------------------------------------*/
2046
2047 void
2048 mono_arch_create_vars (MonoCompile *cfg)
2049 {
2050 MonoMethodSignature *sig;
2051 CallInfo *cinfo;
2052
2053 sig = mono_method_signature (cfg->method);
2054
2055 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2056
2057 if (cinfo->struct_ret) {
2058 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
2059 if (G_UNLIKELY (cfg->verbose_level > 1)) {
2060 printf ("vret_addr = ");
2061 mono_print_ins (cfg->vret_addr);
2062 }
2063 }
2064 }
2065
2066 /*========================= End of Function ========================*/
2067
2068 /*------------------------------------------------------------------*/
2069 /* */
2070 /* Name - add_outarg_reg2. */
2071 /* */
2072 /*------------------------------------------------------------------*/
2073
2074 static void
2075 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
2076 {
2077 MonoInst *ins;
2078
2079 switch (storage) {
2080 case RegTypeGeneral:
2081 MONO_INST_NEW (cfg, ins, OP_MOVE);
2082 ins->dreg = mono_alloc_ireg (cfg);
2083 ins->sreg1 = tree->dreg;
2084 MONO_ADD_INS (cfg->cbb, ins);
2085 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
2086 break;
2087 case RegTypeFP:
2088 MONO_INST_NEW (cfg, ins, OP_FMOVE);
2089 ins->dreg = mono_alloc_freg (cfg);
2090 ins->sreg1 = tree->dreg;
2091 MONO_ADD_INS (cfg->cbb, ins);
2092 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2093 break;
2094 case RegTypeFPR4:
2095 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
2096 ins->dreg = mono_alloc_freg (cfg);
2097 ins->sreg1 = tree->dreg;
2098 MONO_ADD_INS (cfg->cbb, ins);
2099 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2100 break;
2101 default:
2102 g_assert_not_reached ();
2103 }
2104 }
2105
2106 /*========================= End of Function ========================*/
2107
2108 /*------------------------------------------------------------------*/
2109 /* */
2110 /* Name - emit_sig_cookie. */
2111 /* */
2112 /*------------------------------------------------------------------*/
2113
2114 static void
2115 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2116 {
2117 MonoMethodSignature *tmpSig;
2118 MonoInst *sig_arg;
2119
2120 cfg->disable_aot = TRUE;
2121
2122 /*----------------------------------------------------------*/
2123 /* mono_ArgIterator_Setup assumes the signature cookie is */
2124 /* passed first and all the arguments which were before it */
2125 /* passed on the stack after the signature. So compensate */
2126 /* by passing a different signature. */
2127 /*----------------------------------------------------------*/
2128 tmpSig = mono_metadata_signature_dup (call->signature);
2129 tmpSig->param_count -= call->signature->sentinelpos;
2130 tmpSig->sentinelpos = 0;
2131 if (tmpSig->param_count > 0)
2132 memcpy (tmpSig->params,
2133 call->signature->params + call->signature->sentinelpos,
2134 tmpSig->param_count * sizeof(MonoType *));
2135
2136 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2137 sig_arg->dreg = mono_alloc_ireg (cfg);
2138 sig_arg->inst_p0 = tmpSig;
2139 MONO_ADD_INS (cfg->cbb, sig_arg);
2140
2141 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2142 cinfo->sigCookie.offset, sig_arg->dreg);
2143 }
2144
2145 /*========================= End of Function ========================*/
2146
2147 /*------------------------------------------------------------------*/
2148 /* */
2149 /* Name - mono_arch_emit_call */
2150 /* */
2151 /*------------------------------------------------------------------*/
2152
2153 void
2154 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2155 {
2156 MonoInst *in;
2157 MonoMethodSignature *sig;
2158 MonoInst *ins;
2159 int i, n, lParamArea;
2160 CallInfo *cinfo;
2161 ArgInfo *ainfo = NULL;
2162 int stackSize;
2163 MonoMethodHeader *header;
2164 int frmReg;
2165
2166 sig = call->signature;
2167 n = sig->param_count + sig->hasthis;
2168 DEBUG (g_print ("Call requires: %d parameters\n",n));
2169
2170 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2171
2172 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size +
2173 cinfo->sz.parm_size + cinfo->sz.offset;
2174 call->stack_usage = MAX(stackSize, call->stack_usage);
2175 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2176 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2177 cfg->flags |= MONO_CFG_HAS_CALLS;
2178
2179 if (cinfo->struct_ret) {
2180 MONO_INST_NEW (cfg, ins, OP_MOVE);
2181 ins->sreg1 = call->vret_var->dreg;
2182 ins->dreg = mono_alloc_preg (cfg);
2183 MONO_ADD_INS (cfg->cbb, ins);
2184 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2185 }
2186
2187 header = mono_method_get_header (cfg->method);
2188 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
2189 frmReg = s390_r11;
2190 else
2191 frmReg = STK_BASE;
2192
2193 for (i = 0; i < n; ++i) {
2194 MonoType *t;
2195
2196 ainfo = cinfo->args + i;
2197 if (i >= sig->hasthis)
2198 t = sig->params [i - sig->hasthis];
2199 else
2200 t = &mono_defaults.int_class->byval_arg;
2201 t = mono_type_get_underlying_type (t);
2202
2203 in = call->args [i];
2204
2205 if ((sig->call_convention == MONO_CALL_VARARG) &&
2206 (!sig->pinvoke) &&
2207 (i == sig->sentinelpos)) {
2208 emit_sig_cookie (cfg, call, cinfo);
2209 }
2210
2211 switch (ainfo->regtype) {
2212 case RegTypeGeneral:
2213 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2214 break;
2215 case RegTypeFP:
2216 if (MONO_TYPE_ISSTRUCT (t)) {
2217 /* Valuetype passed in one fp register */
2218 ainfo->regtype = RegTypeStructByValInFP;
2219 /* Fall through */
2220 } else {
2221 if (ainfo->size == 4)
2222 ainfo->regtype = RegTypeFPR4;
2223 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2224 break;
2225 }
2226 case RegTypeStructByVal:
2227 case RegTypeStructByAddr:
2228 case RegTypeStructByAddrOnStack: {
2229 guint32 align;
2230 guint32 size;
2231
2232 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2233 size = sizeof (MonoTypedRef);
2234 align = sizeof (gpointer);
2235 }
2236 else
2237 if (sig->pinvoke)
2238 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2239 else {
2240 /*
2241 * Other backends use mono_type_stack_size (), but that
2242 * aligns the size to 8, which is larger than the size of
2243 * the source, leading to reads of invalid memory if the
2244 * source is at the end of address space.
2245 */
2246 size = mono_class_value_size (in->klass, &align);
2247 }
2248
2249 g_assert (in->klass);
2250
2251 ainfo->offparm += cinfo->sz.offStruct;
2252
2253 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2254 ins->sreg1 = in->dreg;
2255 ins->klass = in->klass;
2256 ins->backend.size = ainfo->size;
2257 ins->inst_p0 = call;
2258 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2259 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2260
2261 MONO_ADD_INS (cfg->cbb, ins);
2262
2263 if (ainfo->regtype == RegTypeStructByAddr) {
2264 /*
2265 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2266 * use the normal OUTARG opcodes to pass the address of the location to
2267 * the callee.
2268 */
2269 int treg = mono_alloc_preg (cfg);
2270 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2271 frmReg, ainfo->offparm);
2272 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2273 } else if (ainfo->regtype == RegTypeStructByAddrOnStack) {
2274 /* The address of the valuetype is passed on the stack */
2275 int treg = mono_alloc_preg (cfg);
2276 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2277 frmReg, ainfo->offparm);
2278 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG,
2279 ainfo->reg, ainfo->offset, treg);
2280 }
2281 break;
2282 }
2283 case RegTypeBase:
2284 if (!t->byref && t->type == MONO_TYPE_R4) {
2285 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2286 STK_BASE, ainfo->offset + 4,
2287 in->dreg);
2288 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2289 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2290 STK_BASE, ainfo->offset,
2291 in->dreg);
2292 } else {
2293 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2294 ins->inst_destbasereg = STK_BASE;
2295 ins->inst_offset = ainfo->offset;
2296 ins->sreg1 = in->dreg;
2297
2298 #if 0
2299 /* This is needed by MonoTypedRef->value to point to the correct data */
2300 if ((sig->call_convention == MONO_CALL_VARARG) &&
2301 (i >= sig->sentinelpos)) {
2302 switch (ainfo->size) {
2303 case 1:
2304 ins->opcode = OP_STOREI1_MEMBASE_REG;
2305 break;
2306 case 2:
2307 ins->opcode = OP_STOREI2_MEMBASE_REG;
2308 break;
2309 case 4:
2310 ins->opcode = OP_STOREI4_MEMBASE_REG;
2311 break;
2312 default:
2313 break;
2314 }
2315 }
2316 #endif
2317
2318 MONO_ADD_INS (cfg->cbb, ins);
2319 }
2320 break;
2321 default:
2322 g_assert_not_reached ();
2323 break;
2324 }
2325 }
2326
2327 /*
2328 * Handle the case where there are no implicit arguments
2329 */
2330 if ((sig->call_convention == MONO_CALL_VARARG) &&
2331 (!sig->pinvoke) &&
2332 (i == sig->sentinelpos)) {
2333 emit_sig_cookie (cfg, call, cinfo);
2334 }
2335 }
2336
2337 /*========================= End of Function ========================*/
2338
2339 /*------------------------------------------------------------------*/
2340 /* */
2341 /* Name - mono_arch_emit_outarg_vt */
2342 /* */
2343 /*------------------------------------------------------------------*/
2344
2345 void
2346 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2347 {
2348 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2349 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2350 int size = ins->backend.size;
2351
2352 if (ainfo->regtype == RegTypeStructByVal) {
2353 /*
2354 arg->ins.sreg1 = ainfo->reg;
2355 arg->ins.opcode = OP_OUTARG_VT;
2356 arg->size = ainfo->size;
2357 arg->offset = ainfo->offset;
2358 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2359 */
2360 if (ainfo->reg != STK_BASE) {
2361 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2362 } else {
2363 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2364 src->dreg, 0);
2365 }
2366 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2367 int dreg = mono_alloc_freg (cfg);
2368
2369 if (ainfo->size == 4) {
2370 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2371 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2372 } else {
2373 g_assert (ainfo->size == 8);
2374
2375 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2376 }
2377
2378 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2379 } else {
2380 MonoMethodHeader *header;
2381 int srcReg;
2382
2383 header = mono_method_get_header (cfg->method);
2384 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
2385 srcReg = s390_r11;
2386 else
2387 srcReg = STK_BASE;
2388
2389 MONO_EMIT_NEW_MOVE (cfg, srcReg, ainfo->offparm,
2390 src->dreg, 0, size);
2391 }
2392 }
2393
2394 /*========================= End of Function ========================*/
2395
2396 /*------------------------------------------------------------------*/
2397 /* */
2398 /* Name - mono_arch_emit_setret */
2399 /* */
2400 /*------------------------------------------------------------------*/
2401
2402 void
2403 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2404 {
2405 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2406
2407 if (!ret->byref) {
2408 if (ret->type == MONO_TYPE_R4) {
2409 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2410 return;
2411 } else if (ret->type == MONO_TYPE_R8) {
2412 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2413 return;
2414 }
2415 }
2416
2417 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2418 }
2419
2420 /*========================= End of Function ========================*/
2421
2422 /*------------------------------------------------------------------*/
2423 /* */
2424 /* Name - mono_arch_instrument_mem_needs */
2425 /* */
2426 /* Function - Allow tracing to work with this interface (with */
2427 /* an optional argument). */
2428 /* */
2429 /*------------------------------------------------------------------*/
2430
2431 void
2432 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2433 {
2434 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2435 *stack = 0;
2436 /* split prolog-epilog requirements? */
2437 *code = 50; /* max bytes needed: check this number */
2438 }
2439
2440 /*========================= End of Function ========================*/
2441
2442 /*------------------------------------------------------------------*/
2443 /* */
2444 /* Name - mono_arch_instrument_prolog */
2445 /* */
2446 /* Function - Create an "instrumented" prolog. */
2447 /* */
2448 /*------------------------------------------------------------------*/
2449
2450 void*
2451 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2452 gboolean enable_arguments)
2453 {
2454 guchar *code = p;
2455 int parmOffset,
2456 fpOffset,
2457 baseReg;
2458
2459 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2460 if (cfg->method->save_lmf)
2461 parmOffset -= sizeof(MonoLMF);
2462 fpOffset = parmOffset + (5*sizeof(gpointer));
2463 if ((!has_ld) && (fpOffset > 4096)) {
2464 s390_lgr (code, s390_r12, STK_BASE);
2465 baseReg = s390_r12;
2466 while (fpOffset > 4096) {
2467 s390_aghi (code, baseReg, 4096);
2468 fpOffset -= 4096;
2469 parmOffset -= 4096;
2470 }
2471 } else {
2472 baseReg = STK_BASE;
2473 }
2474
2475 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2476 if (has_ld) {
2477 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2478 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2479 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2480 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2481 } else {
2482 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2483 s390_std (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2484 s390_std (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2485 s390_std (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2486 }
2487 s390_basr (code, s390_r13, 0);
2488 s390_j (code, 10);
2489 s390_llong(code, cfg->method);
2490 s390_llong(code, func);
2491 s390_lg (code, s390_r2, 0, s390_r13, 4);
2492 if (has_ld)
2493 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2494 else
2495 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2496 s390_lgr (code, s390_r4, STK_BASE);
2497 s390_aghi (code, s390_r4, cfg->stack_usage);
2498 s390_lg (code, s390_r1, 0, s390_r13, 12);
2499 s390_basr (code, s390_r14, s390_r1);
2500 if (has_ld) {
2501 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2502 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2503 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2504 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2505 } else {
2506 s390_ld (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2507 s390_ld (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2508 s390_ld (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2509 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2510 }
2511 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2512
2513 return code;
2514 }
2515
2516 /*========================= End of Function ========================*/
2517
2518 /*------------------------------------------------------------------*/
2519 /* */
2520 /* Name - mono_arch_instrument_epilog */
2521 /* */
2522 /* Function - Create an epilog that will handle the returned */
2523 /* values used in instrumentation. */
2524 /* */
2525 /*------------------------------------------------------------------*/
2526
2527 void*
2528 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2529 {
2530 guchar *code = p;
2531 int save_mode = SAVE_NONE,
2532 saveOffset;
2533 MonoMethod *method = cfg->method;
2534 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2535
2536 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2537 if (method->save_lmf)
2538 saveOffset -= sizeof(MonoLMF);
2539
2540 handle_enum:
2541 switch (rtype) {
2542 case MONO_TYPE_VOID:
2543 /* special case string .ctor icall */
2544 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2545 save_mode = SAVE_ONE;
2546 else
2547 save_mode = SAVE_NONE;
2548 break;
2549 case MONO_TYPE_I8:
2550 case MONO_TYPE_U8:
2551 save_mode = SAVE_ONE;
2552 break;
2553 case MONO_TYPE_R4:
2554 save_mode = SAVE_R4;
2555 break;
2556 case MONO_TYPE_R8:
2557 save_mode = SAVE_R8;
2558 break;
2559 case MONO_TYPE_VALUETYPE:
2560 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2561 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2562 goto handle_enum;
2563 }
2564 save_mode = SAVE_STRUCT;
2565 break;
2566 default:
2567 save_mode = SAVE_ONE;
2568 break;
2569 }
2570
2571 switch (save_mode) {
2572 case SAVE_ONE:
2573 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2574 if (enable_arguments) {
2575 s390_lgr (code, s390_r3, s390_r2);
2576 }
2577 break;
2578 case SAVE_R4:
2579 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2580 if (enable_arguments) {
2581 s390_ldebr (code, s390_f0, s390_f0);
2582 }
2583 break;
2584 case SAVE_R8:
2585 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2586 break;
2587 case SAVE_STRUCT:
2588 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2589 if (enable_arguments) {
2590 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2591 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2592 }
2593 break;
2594 case SAVE_NONE:
2595 default:
2596 break;
2597 }
2598
2599 s390_basr (code, s390_r13, 0);
2600 s390_j (code, 10);
2601 s390_llong(code, cfg->method);
2602 s390_llong(code, func);
2603 s390_lg (code, s390_r2, 0, s390_r13, 4);
2604 s390_lg (code, s390_r1, 0, s390_r13, 12);
2605 s390_basr (code, s390_r14, s390_r1);
2606
2607 switch (save_mode) {
2608 case SAVE_ONE:
2609 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2610 break;
2611 case SAVE_R4:
2612 case SAVE_R8:
2613 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2614 break;
2615 case SAVE_STRUCT:
2616 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2617 break;
2618 case SAVE_NONE:
2619 default:
2620 break;
2621 }
2622
2623 return code;
2624 }
2625
2626 /*========================= End of Function ========================*/
2627
2628 /*------------------------------------------------------------------*/
2629 /* */
2630 /* Name - mono_arch_peephole_pass_1 */
2631 /* */
2632 /* Function - Form a peephole pass at the code looking for */
2633 /* simple optimizations. */
2634 /* */
2635 /*------------------------------------------------------------------*/
2636
2637 void
2638 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2639 {
2640 }
2641
2642 /*========================= End of Function ========================*/
2643
2644 /*------------------------------------------------------------------*/
2645 /* */
2646 /* Name - mono_arch_peephole_pass_2 */
2647 /* */
2648 /* Function - Form a peephole pass at the code looking for */
2649 /* simple optimizations. */
2650 /* */
2651 /*------------------------------------------------------------------*/
2652
2653 void
2654 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2655 {
2656 MonoInst *ins, *n;
2657
2658 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2659 mono_peephole_ins (bb, ins);
2660 }
2661 }
2662
2663 /*========================= End of Function ========================*/
2664
2665 /*------------------------------------------------------------------*/
2666 /* */
2667 /* Name - mono_arch_lowering_pass. */
2668 /* */
2669 /*------------------------------------------------------------------*/
2670
2671 void
2672 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2673 {
2674 MonoInst *ins, *next;
2675
2676 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2677 switch (ins->opcode) {
2678 case OP_DIV_IMM:
2679 case OP_REM_IMM:
2680 case OP_IDIV_IMM:
2681 case OP_IREM_IMM:
2682 case OP_IDIV_UN_IMM:
2683 case OP_IREM_UN_IMM:
2684 case OP_LAND_IMM:
2685 case OP_LOR_IMM:
2686 case OP_LXOR_IMM:
2687 case OP_LOCALLOC_IMM:
2688 mono_decompose_op_imm (cfg, bb, ins);
2689 break;
2690 case OP_LADD_IMM:
2691 if (!s390_is_imm16 (ins->inst_imm))
2692 /* This is created by the memcpy code which ignores is_inst_imm */
2693 mono_decompose_op_imm (cfg, bb, ins);
2694 break;
2695 default:
2696 break;
2697 }
2698 }
2699
2700 bb->max_vreg = cfg->next_vreg;
2701 }
2702
2703 /*========================= End of Function ========================*/
2704
2705 /*------------------------------------------------------------------*/
2706 /* */
2707 /* Name - emit_float_to_int */
2708 /* */
2709 /* Function - Create instructions which will convert a floating */
2710 /* point value to integer. */
2711 /* */
2712 /*------------------------------------------------------------------*/
2713
2714 static guchar*
2715 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2716 {
2717 /* sreg is a float, dreg is an integer reg. */
2718 if (is_signed) {
2719 s390_cgdbr (code, dreg, 5, sreg);
2720 switch (size) {
2721 case 1:
2722 s390_lghi (code, s390_r0, 0);
2723 s390_lghi (code, s390_r13, 0xff);
2724 s390_ltgr (code, dreg, dreg);
2725 s390_jnl (code, 4);
2726 s390_lghi (code, s390_r0, 0x80);
2727 s390_ngr (code, dreg, s390_r13);
2728 s390_ogr (code, dreg, s390_r0);
2729 break;
2730 }
2731 } else {
2732 short *o[1];
2733 s390_basr (code, s390_r13, 0);
2734 s390_j (code, 10);
2735 s390_llong (code, 0x41e0000000000000);
2736 s390_llong (code, 0x41f0000000000000);
2737 s390_ldr (code, s390_f15, sreg);
2738 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2739 s390_jl (code, 0); CODEPTR (code, o[0]);
2740 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2741 s390_cfdbr (code, dreg, 7, s390_f15);
2742 s390_j (code, 4);
2743 PTRSLOT (code, o[0]);
2744 s390_cfdbr (code, dreg, 5, sreg);
2745 switch (size) {
2746 case 1:
2747 s390_lghi (code, s390_r0, 0xff);
2748 s390_ngr (code, dreg, s390_r0);
2749 break;
2750 case 2:
2751 s390_lghi (code, s390_r0, -1);
2752 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2753 s390_ngr (code, dreg, s390_r0);
2754 break;
2755 }
2756 }
2757 return code;
2758 }
2759
2760 /*========================= End of Function ========================*/
2761
2762 /*------------------------------------------------------------------*/
2763 /* */
2764 /* Name - gboolean_is_unsigned. */
2765 /* */
2766 /* Function - Return TRUE if next opcode is checking for un- */
2767 /* signed value. */
2768 /* */
2769 /*------------------------------------------------------------------*/
2770
2771 static
2772 gboolean is_unsigned (MonoInst *next)
2773 {
2774 if ((next) &&
2775 (((next->opcode >= OP_IBNE_UN) &&
2776 (next->opcode <= OP_IBLT_UN)) ||
2777 ((next->opcode >= OP_LBNE_UN) &&
2778 (next->opcode <= OP_LBLT_UN)) ||
2779 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2780 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2781 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2782 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2783 ((next->opcode == OP_CLT_UN) ||
2784 (next->opcode == OP_CGT_UN)) ||
2785 ((next->opcode == OP_ICLT_UN) ||
2786 (next->opcode == OP_ICGT_UN) ||
2787 (next->opcode == OP_LCLT_UN) ||
2788 (next->opcode == OP_LCGT_UN))))
2789 return TRUE;
2790 else
2791 return FALSE;
2792 }
2793
2794 /*========================= End of Function ========================*/
2795
2796 /*------------------------------------------------------------------*/
2797 /* */
2798 /* Name - mono_arch_output_basic_block */
2799 /* */
2800 /* Function - Perform the "real" work of emitting instructions */
2801 /* that will do the work of in the basic block. */
2802 /* */
2803 /*------------------------------------------------------------------*/
2804
2805 void
2806 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2807 {
2808 MonoInst *ins;
2809 MonoCallInst *call;
2810 guint offset;
2811 guint8 *code = cfg->native_code + cfg->code_len;
2812 guint last_offset = 0;
2813 int max_len, cpos, src2;
2814
2815 /* we don't align basic blocks of loops on s390 */
2816
2817 if (cfg->verbose_level > 2)
2818 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2819
2820 cpos = bb->max_offset;
2821
2822 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2823 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2824 //g_assert (!mono_compile_aot);
2825 //cpos += 6;
2826 //if (bb->cil_code)
2827 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2828 /* this is not thread save, but good enough */
2829 /* fixme: howto handle overflows? */
2830 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2831 }
2832
2833 MONO_BB_FOR_EACH_INS (bb, ins) {
2834 offset = code - cfg->native_code;
2835
2836 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2837
2838 if (offset > (cfg->code_size - max_len - 16)) {
2839 cfg->code_size *= 2;
2840 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2841 code = cfg->native_code + offset;
2842 }
2843
2844 mono_debug_record_line_number (cfg, ins, offset);
2845
2846 switch (ins->opcode) {
2847 case OP_STOREI1_MEMBASE_IMM: {
2848 s390_lghi (code, s390_r0, ins->inst_imm);
2849 S390_LONG (code, stcy, stc, s390_r0, 0,
2850 ins->inst_destbasereg, ins->inst_offset);
2851 }
2852 break;
2853 case OP_STOREI2_MEMBASE_IMM: {
2854 s390_lghi (code, s390_r0, ins->inst_imm);
2855 S390_LONG (code, sthy, sth, s390_r0, 0,
2856 ins->inst_destbasereg, ins->inst_offset);
2857 }
2858 break;
2859 case OP_STOREI4_MEMBASE_IMM: {
2860 if (s390_is_imm16(ins->inst_imm)) {
2861 s390_lghi (code, s390_r0, ins->inst_imm);
2862 } else {
2863 s390_basr (code, s390_r13, 0);
2864 s390_j (code, 6);
2865 s390_llong(code, ins->inst_imm);
2866 s390_lg (code, s390_r0, 0, s390_r13, 4);
2867 }
2868 S390_LONG (code, sty, st, s390_r0, 0,
2869 ins->inst_destbasereg, ins->inst_offset);
2870 }
2871 break;
2872 case OP_STORE_MEMBASE_IMM:
2873 case OP_STOREI8_MEMBASE_IMM: {
2874 if (s390_is_imm16(ins->inst_imm)) {
2875 s390_lghi (code, s390_r0, ins->inst_imm);
2876 } else {
2877 s390_basr (code, s390_r13, 0);
2878 s390_j (code, 6);
2879 s390_llong(code, ins->inst_imm);
2880 s390_lg (code, s390_r0, 0, s390_r13, 4);
2881 }
2882 S390_LONG (code, stg, stg, s390_r0, 0,
2883 ins->inst_destbasereg, ins->inst_offset);
2884 }
2885 break;
2886 case OP_STOREI1_MEMBASE_REG: {
2887 S390_LONG (code, stcy, stc, ins->sreg1, 0,
2888 ins->inst_destbasereg, ins->inst_offset);
2889 }
2890 break;
2891 case OP_STOREI2_MEMBASE_REG: {
2892 S390_LONG (code, sthy, sth, ins->sreg1, 0,
2893 ins->inst_destbasereg, ins->inst_offset);
2894 }
2895 break;
2896 case OP_STOREI4_MEMBASE_REG: {
2897 S390_LONG (code, sty, st, ins->sreg1, 0,
2898 ins->inst_destbasereg, ins->inst_offset);
2899 }
2900 break;
2901 case OP_STORE_MEMBASE_REG:
2902 case OP_STOREI8_MEMBASE_REG: {
2903 S390_LONG (code, stg, stg, ins->sreg1, 0,
2904 ins->inst_destbasereg, ins->inst_offset);
2905 }
2906 break;
2907 case OP_LOADU4_MEM:
2908 g_assert_not_reached ();
2909 break;
2910 case OP_LOAD_MEMBASE:
2911 case OP_LOADI8_MEMBASE: {
2912 S390_LONG (code, lg, lg, ins->dreg, 0,
2913 ins->inst_basereg, ins->inst_offset);
2914 }
2915 break;
2916 case OP_LOADI4_MEMBASE: {
2917 S390_LONG (code, lgf, lgf, ins->dreg, 0,
2918 ins->inst_basereg, ins->inst_offset);
2919 }
2920 break;
2921 case OP_LOADU4_MEMBASE: {
2922 S390_LONG (code, llgf, llgf, ins->dreg, 0,
2923 ins->inst_basereg, ins->inst_offset);
2924 }
2925 break;
2926 case OP_LOADU1_MEMBASE: {
2927 S390_LONG (code, llgc, llgc, ins->dreg, 0,
2928 ins->inst_basereg, ins->inst_offset);
2929 }
2930 break;
2931 case OP_LOADI1_MEMBASE: {
2932 S390_LONG (code, lgb, lgb, ins->dreg, 0,
2933 ins->inst_basereg, ins->inst_offset);
2934 }
2935 break;
2936 case OP_LOADU2_MEMBASE: {
2937 S390_LONG (code, llgh, llgh, ins->dreg, 0,
2938 ins->inst_basereg, ins->inst_offset);
2939 }
2940 break;
2941 case OP_LOADI2_MEMBASE: {
2942 S390_LONG (code, lgh, lgh, ins->dreg, 0,
2943 ins->inst_basereg, ins->inst_offset);
2944 }
2945 break;
2946 case OP_LCONV_TO_I1: {
2947 #if 0
2948 s390_lgbr (code, ins->dreg, ins->sreg1);
2949 #else
2950 s390_sllg (code, ins->dreg, ins->sreg1, 0, 56);
2951 s390_srag (code, ins->dreg, ins->dreg, 0, 56);
2952 #endif
2953 }
2954 break;
2955 case OP_LCONV_TO_I2: {
2956 #if 0
2957 s390_lghr (code, ins->dreg, ins->sreg1);
2958 #else
2959 s390_sllg (code, ins->dreg, ins->sreg1, 0, 48);
2960 s390_srag (code, ins->dreg, ins->dreg, 0, 48);
2961 #endif
2962 }
2963 break;
2964 case OP_LCONV_TO_U1: {
2965 #if 0
2966 s390_llghr (code, ins->dreg, ins->sreg1);
2967 #else
2968 if (ins->dreg != ins->sreg1)
2969 s390_lgr (code, ins->dreg, ins->sreg1);
2970 s390_lghi (code, s390_r0, 0xff);
2971 s390_ngr (code, ins->dreg, s390_r0);
2972 #endif
2973 }
2974 break;
2975 case OP_LCONV_TO_U2: {
2976 #if 0
2977 s390_llghr (code, ins->dreg, ins->sreg1);
2978 #else
2979 if (ins->dreg != ins->sreg1)
2980 s390_lgr (code, ins->dreg, ins->sreg1);
2981 s390_lghi (code, s390_r0, -1);
2982 s390_srlg (code, s390_r0, s390_r0, 0, 48);
2983 s390_ngr (code, ins->dreg, s390_r0);
2984 #endif
2985 }
2986 break;
2987 case OP_ICONV_TO_I1: {
2988 #if 0
2989 s390_lbr (code, ins->dreg, ins->sreg1);
2990 #else
2991 if (ins->dreg != ins->sreg1)
2992 s390_lr (code, ins->dreg, ins->sreg1);
2993 s390_sll (code, ins->dreg, 0, 24);
2994 s390_sra (code, ins->dreg, 0, 24);
2995
2996 #endif
2997 }
2998 break;
2999 case OP_ICONV_TO_I2: {
3000 #if 0
3001 s390_lhr (code, ins->dreg, ins->sreg1);
3002 #else
3003 if (ins->dreg != ins->sreg1)
3004 s390_lr (code, ins->dreg, ins->sreg1);
3005 s390_sll (code, ins->dreg, 0, 16);
3006 s390_sra (code, ins->dreg, 0, 16);
3007 #endif
3008 }
3009 break;
3010 case OP_ICONV_TO_U1: {
3011 #if 0
3012 s390_llcr (code, ins->dreg, ins->sreg1);
3013 #else
3014 if (ins->dreg != ins->sreg1)
3015 s390_lr (code, ins->dreg, ins->sreg1);
3016 s390_lhi (code, s390_r0, 0xff);
3017 s390_nr (code, ins->dreg, s390_r0);
3018 #endif
3019 }
3020 break;
3021 case OP_ICONV_TO_U2: {
3022 #if 0
3023 s390_llhr (code, ins->dreg, ins->sreg1);
3024 #else
3025 if (ins->dreg != ins->sreg1)
3026 s390_lr (code, ins->dreg, ins->sreg1);
3027 s390_lhi (code, s390_r0, -1);
3028 s390_srl (code, s390_r0, 0, 16);
3029 s390_nr (code, ins->dreg, s390_r0);
3030 #endif
3031 }
3032 break;
3033 case OP_COMPARE:
3034 case OP_LCOMPARE: {
3035 if (is_unsigned (ins->next))
3036 s390_clgr (code, ins->sreg1, ins->sreg2);
3037 else
3038 s390_cgr (code, ins->sreg1, ins->sreg2);
3039 }
3040 break;
3041 case OP_ICOMPARE: {
3042 if (is_unsigned (ins->next))
3043 s390_clr (code, ins->sreg1, ins->sreg2);
3044 else
3045 s390_cr (code, ins->sreg1, ins->sreg2);
3046 }
3047 break;
3048 case OP_COMPARE_IMM:
3049 case OP_LCOMPARE_IMM: {
3050 if (s390_is_imm16 (ins->inst_imm)) {
3051 s390_lghi (code, s390_r0, ins->inst_imm);
3052 if (is_unsigned (ins->next))
3053 s390_clgr (code, ins->sreg1, s390_r0);
3054 else
3055 s390_cgr (code, ins->sreg1, s390_r0);
3056 } else {
3057 s390_basr (code, s390_r13, 0);
3058 s390_j (code, 6);
3059 s390_llong(code, ins->inst_imm);
3060 if (is_unsigned (ins->next))
3061 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3062 else
3063 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3064 }
3065 }
3066 break;
3067 case OP_ICOMPARE_IMM: {
3068 if (s390_is_imm16 (ins->inst_imm)) {
3069 s390_lghi (code, s390_r0, ins->inst_imm);
3070 if (is_unsigned (ins->next))
3071 s390_clr (code, ins->sreg1, s390_r0);
3072 else
3073 s390_cr (code, ins->sreg1, s390_r0);
3074 }
3075 else {
3076 s390_basr (code, s390_r13, 0);
3077 s390_j (code, 4);
3078 s390_word (code, ins->inst_imm);
3079 if (is_unsigned (ins->next))
3080 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
3081 else
3082 s390_c (code, ins->sreg1, 0, s390_r13, 4);
3083 }
3084 }
3085 break;
3086 case OP_BREAK: {
3087 s390_basr (code, s390_r13, 0);
3088 s390_j (code, 6);
3089 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_ABS,
3090 mono_break);
3091 s390_llong (code, mono_break);
3092 s390_lg (code, s390_r14, 0, s390_r13, 4);
3093 s390_basr (code, s390_r14, s390_r14);
3094 }
3095 break;
3096 case OP_ADDCC: {
3097 CHECK_SRCDST_COM;
3098 s390_agr (code, ins->dreg, src2);
3099 }
3100 break;
3101 case OP_LADD: {
3102 CHECK_SRCDST_COM;
3103 s390_agr (code, ins->dreg, src2);
3104 }
3105 break;
3106 case OP_ADC: {
3107 CHECK_SRCDST_COM;
3108 s390_alcgr (code, ins->dreg, src2);
3109 }
3110 break;
3111 case OP_ADD_IMM: {
3112 if (ins->dreg != ins->sreg1) {
3113 s390_lgr (code, ins->dreg, ins->sreg1);
3114 }
3115 if (s390_is_imm16 (ins->inst_imm)) {
3116 s390_aghi (code, ins->dreg, ins->inst_imm);
3117 } else {
3118 s390_basr (code, s390_r13, 0);
3119 s390_j (code, 6);
3120 s390_llong(code, ins->inst_imm);
3121 s390_ag (code, ins->dreg, 0, s390_r13, 4);
3122 }
3123 }
3124 break;
3125 case OP_LADD_IMM: {
3126 if (ins->dreg != ins->sreg1) {
3127 s390_lgr (code, ins->dreg, ins->sreg1);
3128 }
3129 g_assert (s390_is_imm16 (ins->inst_imm));
3130 s390_aghi (code, ins->dreg, ins->inst_imm);
3131 }
3132 break;
3133 case OP_ADC_IMM: {
3134 if (ins->dreg != ins->sreg1) {
3135 s390_lgr (code, ins->dreg, ins->sreg1);
3136 }
3137 if (s390_is_imm16 (ins->inst_imm)) {
3138 s390_lghi (code, s390_r0, ins->inst_imm);
3139 s390_alcgr (code, ins->dreg, s390_r0);
3140 } else {
3141 s390_basr (code, s390_r13, 0);
3142 s390_j (code, 6);
3143 s390_llong (code, ins->inst_imm);
3144 s390_lg (code, s390_r13, 0, s390_r13, 4);
3145 s390_alcgr (code, ins->dreg, s390_r13);
3146 }
3147 }
3148 break;
3149 case OP_IADD_OVF:
3150 case OP_S390_IADD_OVF: {
3151 CHECK_SRCDST_COM;
3152 s390_ar (code, ins->dreg, src2);
3153 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3154 s390_lgfr (code, ins->dreg, ins->dreg);
3155 }
3156 break;
3157 case OP_IADD_OVF_UN:
3158 case OP_S390_IADD_OVF_UN: {
3159 CHECK_SRCDST_COM;
3160 s390_algr (code, ins->dreg, src2);
3161 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3162 s390_llgfr (code, ins->dreg, ins->dreg);
3163 }
3164 break;
3165 case OP_ADD_OVF_CARRY: {
3166 CHECK_SRCDST_COM;
3167 s390_lghi (code, s390_r0, 0);
3168 s390_lgr (code, s390_r1, s390_r0);
3169 s390_alcgr (code, s390_r0, s390_r1);
3170 s390_agr (code, ins->dreg, src2);
3171 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3172 s390_agr (code, ins->dreg, s390_r0);
3173 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3174 }
3175 break;
3176 case OP_ADD_OVF_UN_CARRY: {
3177 CHECK_SRCDST_COM;
3178 s390_alcgr (code, ins->dreg, src2);
3179 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3180 }
3181 break;
3182 case OP_SUBCC: {
3183 CHECK_SRCDST_NCOM;
3184 s390_sgr (code, ins->dreg, src2);
3185 }
3186 break;
3187 case OP_LSUB: {
3188 CHECK_SRCDST_NCOM;
3189 s390_sgr (code, ins->dreg, src2);
3190 }
3191 break;
3192 case OP_SBB: {
3193 CHECK_SRCDST_NCOM;
3194 s390_slbgr(code, ins->dreg, src2);
3195 }
3196 break;
3197 case OP_SUB_IMM: {
3198 if (ins->dreg != ins->sreg1) {
3199 s390_lgr (code, ins->dreg, ins->sreg1);
3200 }
3201 if (s390_is_imm16 (-ins->inst_imm)) {
3202 s390_lghi (code, s390_r0, ins->inst_imm);
3203 s390_slgr (code, ins->dreg, s390_r0);
3204 } else {
3205 s390_basr (code, s390_r13, 0);
3206 s390_j (code, 6);
3207 s390_llong(code, ins->inst_imm);
3208 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3209 }
3210 }
3211 break;
3212 case OP_LSUB_IMM: {
3213 if (ins->dreg != ins->sreg1) {
3214 s390_lgr (code, ins->dreg, ins->sreg1);
3215 }
3216 if (s390_is_imm16 (-ins->inst_imm)) {
3217 s390_lghi (code, s390_r0, ins->inst_imm);
3218 s390_slgr (code, ins->dreg, s390_r0);
3219 } else {
3220 s390_basr (code, s390_r13, 0);
3221 s390_j (code, 6);
3222 s390_llong(code, ins->inst_imm);
3223 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3224 }
3225 }
3226 break;
3227 case OP_SBB_IMM: {
3228 if (ins->dreg != ins->sreg1) {
3229 s390_lgr (code, ins->dreg, ins->sreg1);
3230 }
3231 if (s390_is_imm16 (-ins->inst_imm)) {
3232 s390_lghi (code, s390_r0, ins->inst_imm);
3233 s390_slbgr (code, ins->dreg, s390_r0);
3234 } else {
3235 s390_basr (code, s390_r13, 0);
3236 s390_j (code, 6);
3237 s390_llong(code, ins->inst_imm);
3238 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
3239 }
3240 }
3241 break;
3242 case OP_SUB_OVF_CARRY: {
3243 CHECK_SRCDST_NCOM;
3244 s390_lghi (code, s390_r0, 0);
3245 s390_lgr (code, s390_r1, s390_r0);
3246 s390_slbgr (code, s390_r0, s390_r1);
3247 s390_sgr (code, ins->dreg, src2);
3248 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3249 s390_agr (code, ins->dreg, s390_r0);
3250 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3251 }
3252 break;
3253 case OP_SUB_OVF_UN_CARRY: {
3254 CHECK_SRCDST_NCOM;
3255 s390_slbgr (code, ins->dreg, src2);
3256 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3257 }
3258 break;
3259 case OP_LAND: {
3260 if (ins->sreg1 == ins->dreg) {
3261 s390_ngr (code, ins->dreg, ins->sreg2);
3262 }
3263 else {
3264 if (ins->sreg2 == ins->dreg) {
3265 s390_ngr (code, ins->dreg, ins->sreg1);
3266 }
3267 else {
3268 s390_lgr (code, ins->dreg, ins->sreg1);
3269 s390_ngr (code, ins->dreg, ins->sreg2);
3270 }
3271 }
3272 }
3273 break;
3274 case OP_AND_IMM: {
3275 if (ins->dreg != ins->sreg1) {
3276 s390_lgr (code, ins->dreg, ins->sreg1);
3277 }
3278 if (s390_is_imm16 (ins->inst_imm)) {
3279 s390_lghi (code, s390_r0, ins->inst_imm);
3280 s390_ngr (code, ins->dreg, s390_r0);
3281 } else {
3282 s390_basr (code, s390_r13, 0);
3283 s390_j (code, 6);
3284 s390_llong(code, ins->inst_imm);
3285 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3286 }
3287 }
3288 break;
3289 case OP_LDIV: {
3290 s390_lgr (code, s390_r1, ins->sreg1);
3291 s390_dsgr (code, s390_r0, ins->sreg2);
3292 s390_lgr (code, ins->dreg, s390_r1);
3293 }
3294 break;
3295 case OP_LDIV_UN: {
3296 s390_lgr (code, s390_r1, ins->sreg1);
3297 s390_lghi (code, s390_r0, 0);
3298 s390_dlgr (code, s390_r0, ins->sreg2);
3299 s390_lgr (code, ins->dreg, s390_r1);
3300 }
3301 break;
3302 case OP_LREM: {
3303 s390_lgr (code, s390_r1, ins->sreg1);
3304 s390_dsgr (code, s390_r0, ins->sreg2);
3305 s390_lgr (code, ins->dreg, s390_r0);
3306 break;
3307 }
3308 case OP_LREM_UN: {
3309 s390_lgr (code, s390_r1, ins->sreg1);
3310 s390_lghi (code, s390_r0, 0);
3311 s390_dlgr (code, s390_r0, ins->sreg2);
3312 s390_lgr (code, ins->dreg, s390_r0);
3313 }
3314 break;
3315 case OP_LOR: {
3316 if (ins->sreg1 == ins->dreg) {
3317 s390_ogr (code, ins->dreg, ins->sreg2);
3318 }
3319 else {
3320 if (ins->sreg2 == ins->dreg) {
3321 s390_ogr (code, ins->dreg, ins->sreg1);
3322 }
3323 else {
3324 s390_lgr (code, ins->dreg, ins->sreg1);
3325 s390_ogr (code, ins->dreg, ins->sreg2);
3326 }
3327 }
3328 }
3329 break;
3330 case OP_OR_IMM: {
3331 if (ins->dreg != ins->sreg1) {
3332 s390_lgr (code, ins->dreg, ins->sreg1);
3333 }
3334 if (s390_is_imm16 (ins->inst_imm)) {
3335 s390_lghi (code, s390_r0, ins->inst_imm);
3336 s390_ogr (code, ins->dreg, s390_r0);
3337 } else {
3338 s390_basr (code, s390_r13, 0);
3339 s390_j (code, 6);
3340 s390_llong(code, ins->inst_imm);
3341 s390_og (code, ins->dreg, 0, s390_r13, 4);
3342 }
3343 }
3344 break;
3345 case OP_LXOR: {
3346 if (ins->sreg1 == ins->dreg) {
3347 s390_xgr (code, ins->dreg, ins->sreg2);
3348 }
3349 else {
3350 if (ins->sreg2 == ins->dreg) {
3351 s390_xgr (code, ins->dreg, ins->sreg1);
3352 }
3353 else {
3354 s390_lgr (code, ins->dreg, ins->sreg1);
3355 s390_xgr (code, ins->dreg, ins->sreg2);
3356 }
3357 }
3358 }
3359 break;
3360 case OP_XOR_IMM: {
3361 if (ins->dreg != ins->sreg1) {
3362 s390_lgr (code, ins->dreg, ins->sreg1);
3363 }
3364 if (s390_is_imm16 (ins->inst_imm)) {
3365 s390_lghi (code, s390_r0, ins->inst_imm);
3366 s390_xgr (code, ins->dreg, s390_r0);
3367 } else {
3368 s390_basr (code, s390_r13, 0);
3369 s390_j (code, 6);
3370 s390_llong(code, ins->inst_imm);
3371 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3372 }
3373 }
3374 break;
3375 case OP_LSHL: {
3376 CHECK_SRCDST_NCOM;
3377 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3378 }
3379 break;
3380 case OP_SHL_IMM:
3381 case OP_LSHL_IMM: {
3382 if (ins->sreg1 != ins->dreg) {
3383 s390_lgr (code, ins->dreg, ins->sreg1);
3384 }
3385 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3386 }
3387 break;
3388 case OP_LSHR: {
3389 CHECK_SRCDST_NCOM;
3390 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3391 }
3392 break;
3393 case OP_SHR_IMM:
3394 case OP_LSHR_IMM: {
3395 if (ins->sreg1 != ins->dreg) {
3396 s390_lgr (code, ins->dreg, ins->sreg1);
3397 }
3398 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3399 }
3400 break;
3401 case OP_SHR_UN_IMM:
3402 case OP_LSHR_UN_IMM: {
3403 if (ins->sreg1 != ins->dreg) {
3404 s390_lgr (code, ins->dreg, ins->sreg1);
3405 }
3406 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3407 }
3408 break;
3409 case OP_LSHR_UN: {
3410 CHECK_SRCDST_NCOM;
3411 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3412 }
3413 break;
3414 case OP_LNOT: {
3415 if (ins->sreg1 != ins->dreg) {
3416 s390_lgr (code, ins->dreg, ins->sreg1);
3417 }
3418 s390_lghi (code, s390_r0, -1);
3419 s390_xgr (code, ins->dreg, s390_r0);
3420 }
3421 break;
3422 case OP_LNEG: {
3423 s390_lcgr (code, ins->dreg, ins->sreg1);
3424 }
3425 break;
3426 case OP_LMUL: {
3427 CHECK_SRCDST_COM;
3428 s390_msgr (code, ins->dreg, src2);
3429 }
3430 break;
3431 case OP_MUL_IMM:
3432 case OP_LMUL_IMM: {
3433 if (ins->dreg != ins->sreg1) {
3434 s390_lgr (code, ins->dreg, ins->sreg1);
3435 }
3436 if (s390_is_imm16 (ins->inst_imm)) {
3437 s390_lghi (code, s390_r13, ins->inst_imm);
3438 } else {
3439 s390_basr (code, s390_r13, 0);
3440 s390_j (code, 6);
3441 s390_llong(code, ins->inst_imm);
3442 s390_lg (code, s390_r13, 0, s390_r13, 4);
3443 }
3444 s390_msgr (code, ins->dreg, s390_r13);
3445 }
3446 break;
3447 case OP_LMUL_OVF: {
3448 short int *o[2];
3449 s390_ltgr (code, s390_r1, ins->sreg1);
3450 s390_jz (code, 0); CODEPTR(code, o[0]);
3451 s390_ltgr (code, s390_r0, ins->sreg2);
3452 s390_jnz (code, 6);
3453 s390_lghi (code, s390_r1, 0);
3454 s390_j (code, 0); CODEPTR(code, o[1]);
3455 s390_xgr (code, s390_r0, s390_r1);
3456 s390_msgr (code, s390_r1, ins->sreg2);
3457 s390_xgr (code, s390_r0, s390_r1);
3458 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3459 s390_ltgr (code, s390_r0, s390_r0);
3460 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3461 PTRSLOT (code, o[0]);
3462 PTRSLOT (code, o[1]);
3463 s390_lgr (code, ins->dreg, s390_r1);
3464 }
3465 break;
3466 case OP_LMUL_OVF_UN: {
3467 s390_lghi (code, s390_r0, 0);
3468 s390_lgr (code, s390_r1, ins->sreg1);
3469 s390_mlgr (code, s390_r0, ins->sreg2);
3470 s390_ltgr (code, s390_r0, s390_r0);
3471 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3472 s390_lgr (code, ins->dreg, s390_r1);
3473 }
3474 break;
3475 case OP_IADDCC: {
3476 g_assert_not_reached ();
3477 CHECK_SRCDST_COM_I;
3478 s390_algr (code, ins->dreg, src2);
3479 }
3480 break;
3481 case OP_IADD: {
3482 CHECK_SRCDST_COM_I;
3483 s390_agr (code, ins->dreg, src2);
3484 }
3485 break;
3486 case OP_IADC: {
3487 g_assert_not_reached ();
3488 CHECK_SRCDST_COM_I;
3489 s390_alcgr (code, ins->dreg, src2);
3490 }
3491 break;
3492 case OP_IADD_IMM: {
3493 if (ins->dreg != ins->sreg1) {
3494 s390_lgfr (code, ins->dreg, ins->sreg1);
3495 }
3496 if (s390_is_imm16 (ins->inst_imm)) {
3497 s390_aghi(code, ins->dreg, ins->inst_imm);
3498 } else {
3499 s390_basr (code, s390_r13, 0);
3500 s390_j (code, 4);
3501 s390_word (code, ins->inst_imm);
3502 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3503 }
3504 }
3505 break;
3506 case OP_IADC_IMM: {
3507 if (ins->dreg != ins->sreg1) {
3508 s390_lgfr (code, ins->dreg, ins->sreg1);
3509 }
3510 if (s390_is_imm16 (ins->inst_imm)) {
3511 s390_lghi (code, s390_r0, ins->inst_imm);
3512 s390_alcgr (code, ins->dreg, s390_r0);
3513 } else {
3514 s390_basr (code, s390_r13, 0);
3515 s390_j (code, 4);
3516 s390_word (code, ins->inst_imm);
3517 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3518 s390_alcgr (code, ins->dreg, s390_r13);
3519 }
3520 }
3521 break;
3522 case OP_LADD_OVF:
3523 case OP_S390_LADD_OVF: {
3524 CHECK_SRCDST_COM;
3525 s390_agr (code, ins->dreg, src2);
3526 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3527 }
3528 break;
3529 case OP_LADD_OVF_UN:
3530 case OP_S390_LADD_OVF_UN: {
3531 CHECK_SRCDST_COM;
3532 s390_algr (code, ins->dreg, src2);
3533 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3534 }
3535 break;
3536 case OP_ISUBCC: {
3537 CHECK_SRCDST_NCOM_I;
3538 s390_slgr (code, ins->dreg, src2);
3539 }
3540 break;
3541 case OP_ISUB: {
3542 CHECK_SRCDST_NCOM_I;
3543 s390_sgr (code, ins->dreg, src2);
3544 }
3545 break;
3546 case OP_ISBB: {
3547 CHECK_SRCDST_NCOM_I;
3548 s390_slbgr (code, ins->dreg, src2);
3549 }
3550 break;
3551 case OP_ISUB_IMM: {
3552 if (ins->dreg != ins->sreg1) {
3553 s390_lgfr (code, ins->dreg, ins->sreg1);
3554 }
3555 if (s390_is_imm16 (-ins->inst_imm)) {
3556 s390_aghi (code, ins->dreg, -ins->inst_imm);
3557 } else {
3558 s390_basr (code, s390_r13, 0);
3559 s390_j (code, 4);
3560 s390_word (code, ins->inst_imm);
3561 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3562 }
3563 }
3564 break;
3565 case OP_ISBB_IMM: {
3566 s390_basr (code, s390_r13, 0);
3567 s390_j (code, 4);
3568 s390_word (code, ins->inst_imm);
3569 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3570 }
3571 break;
3572 case OP_ISUB_OVF:
3573 case OP_S390_ISUB_OVF: {
3574 CHECK_SRCDST_NCOM;
3575 s390_sr (code, ins->dreg, src2);
3576 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3577 s390_lgfr (code, ins->dreg, ins->dreg);
3578 }
3579 break;
3580 case OP_ISUB_OVF_UN:
3581 case OP_S390_ISUB_OVF_UN: {
3582 CHECK_SRCDST_NCOM;
3583 s390_slr (code, ins->dreg, src2);
3584 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3585 s390_llgfr(code, ins->dreg, ins->dreg);
3586 }
3587 break;
3588 case OP_LSUB_OVF:
3589 case OP_S390_LSUB_OVF: {
3590 CHECK_SRCDST_NCOM;
3591 s390_sgr (code, ins->dreg, src2);
3592 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3593 }
3594 break;
3595 case OP_LSUB_OVF_UN:
3596 case OP_S390_LSUB_OVF_UN: {
3597 CHECK_SRCDST_NCOM;
3598 s390_slgr (code, ins->dreg, src2);
3599 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3600 }
3601 break;
3602 case OP_IAND: {
3603 CHECK_SRCDST_NCOM_I;
3604 s390_ngr (code, ins->dreg, src2);
3605 }
3606 break;
3607 case OP_IAND_IMM: {
3608 if (ins->dreg != ins->sreg1) {
3609 s390_lgfr (code, ins->dreg, ins->sreg1);
3610 }
3611 if (s390_is_imm16 (ins->inst_imm)) {
3612 s390_lghi (code, s390_r0, ins->inst_imm);
3613 s390_ngr (code, ins->dreg, s390_r0);
3614 } else {
3615 s390_basr (code, s390_r13, 0);
3616 s390_j (code, 6);
3617 s390_llong(code, ins->inst_imm);
3618 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3619 }
3620 }
3621 break;
3622 case OP_IDIV: {
3623 s390_lgfr (code, s390_r0, ins->sreg1);
3624 s390_srda (code, s390_r0, 0, 32);
3625 s390_dr (code, s390_r0, ins->sreg2);
3626 s390_lgfr (code, ins->dreg, s390_r1);
3627 }
3628 break;
3629 case OP_IDIV_UN: {
3630 s390_lgfr (code, s390_r0, ins->sreg1);
3631 s390_srdl (code, s390_r0, 0, 32);
3632 s390_dlr (code, s390_r0, ins->sreg2);
3633 s390_lgfr (code, ins->dreg, s390_r1);
3634 }
3635 break;
3636 case OP_IDIV_IMM: {
3637 if (s390_is_imm16 (ins->inst_imm)) {
3638 s390_lghi (code, s390_r13, ins->inst_imm);
3639 s390_lgfr (code, s390_r0, ins->sreg1);
3640 } else {
3641 s390_basr (code, s390_r13, 0);
3642 s390_j (code, 4);
3643 s390_word (code, ins->inst_imm);
3644 s390_lgfr (code, s390_r0, ins->sreg1);
3645 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3646 }
3647 s390_srda (code, s390_r0, 0, 32);
3648 s390_dr (code, s390_r0, ins->sreg2);
3649 s390_lgfr (code, ins->dreg, s390_r1);
3650 }
3651 break;
3652 case OP_IREM: {
3653 s390_lgfr (code, s390_r0, ins->sreg1);
3654 s390_srda (code, s390_r0, 0, 32);
3655 s390_dr (code, s390_r0, ins->sreg2);
3656 s390_lgfr (code, ins->dreg, s390_r0);
3657 break;
3658 case OP_IREM_UN:
3659 s390_lgfr (code, s390_r0, ins->sreg1);
3660 s390_srdl (code, s390_r0, 0, 32);
3661 s390_dlr (code, s390_r0, ins->sreg2);
3662 s390_lgfr (code, ins->dreg, s390_r0);
3663 }
3664 break;
3665 case OP_IREM_IMM: {
3666 if (s390_is_imm16 (ins->inst_imm)) {
3667 s390_lghi (code, s390_r13, ins->inst_imm);
3668 s390_lgfr (code, s390_r0, ins->sreg1);
3669 } else {
3670 s390_basr (code, s390_r13, 0);
3671 s390_j (code, 4);
3672 s390_word (code, ins->inst_imm);
3673 s390_lgfr (code, s390_r0, ins->sreg1);
3674 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3675 }
3676 s390_srda (code, s390_r0, 0, 32);
3677 s390_dr (code, s390_r0, ins->sreg2);
3678 s390_lgfr (code, ins->dreg, s390_r0);
3679 }
3680 break;
3681 case OP_IOR: {
3682 CHECK_SRCDST_COM_I;
3683 s390_ogr (code, ins->dreg, src2);
3684 }
3685 break;
3686 case OP_IOR_IMM: {
3687 if (ins->dreg != ins->sreg1) {
3688 s390_lgfr (code, ins->dreg, ins->sreg1);
3689 }
3690 if (s390_is_imm16 (ins->inst_imm)) {
3691 s390_lghi (code, s390_r0, ins->inst_imm);
3692 s390_ogr (code, ins->dreg, s390_r0);
3693 } else {
3694 s390_basr (code, s390_r13, 0);
3695 s390_j (code, 6);
3696 s390_llong(code, ins->inst_imm);
3697 s390_og (code, ins->dreg, 0, s390_r13, 4);
3698 }
3699 }
3700 break;
3701 case OP_IXOR: {
3702 CHECK_SRCDST_COM_I;
3703 s390_xgr (code, ins->dreg, src2);
3704 }
3705 break;
3706 case OP_IXOR_IMM: {
3707 if (ins->dreg != ins->sreg1) {
3708 s390_lgfr (code, ins->dreg, ins->sreg1);
3709 }
3710 if (s390_is_imm16 (ins->inst_imm)) {
3711 s390_lghi (code, s390_r0, ins->inst_imm);
3712 s390_xgr (code, ins->dreg, s390_r0);
3713 } else {
3714 s390_basr (code, s390_r13, 0);
3715 s390_j (code, 6);
3716 s390_llong(code, ins->inst_imm);
3717 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3718 }
3719 }
3720 break;
3721 case OP_ISHL: {
3722 CHECK_SRCDST_NCOM;
3723 s390_sll (code, ins->dreg, src2, 0);
3724 }
3725 break;
3726 case OP_ISHL_IMM: {
3727 if (ins->sreg1 != ins->dreg) {
3728 s390_lgfr (code, ins->dreg, ins->sreg1);
3729 }
3730 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3731 }
3732 break;
3733 case OP_ISHR: {
3734 CHECK_SRCDST_NCOM;
3735 s390_sra (code, ins->dreg, src2, 0);
3736 }
3737 break;
3738 case OP_ISHR_IMM: {
3739 if (ins->sreg1 != ins->dreg) {
3740 s390_lgfr (code, ins->dreg, ins->sreg1);
3741 }
3742 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3743 }
3744 break;
3745 case OP_ISHR_UN_IMM: {
3746 if (ins->sreg1 != ins->dreg) {
3747 s390_lgfr (code, ins->dreg, ins->sreg1);
3748 }
3749 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3750 }
3751 break;
3752 case OP_ISHR_UN: {
3753 CHECK_SRCDST_NCOM;
3754 s390_srl (code, ins->dreg, src2, 0);
3755 }
3756 break;
3757 case OP_INOT: {
3758 if (ins->sreg1 != ins->dreg) {
3759 s390_lgfr (code, ins->dreg, ins->sreg1);
3760 }
3761 s390_lghi (code, s390_r0, -1);
3762 s390_xgr (code, ins->dreg, s390_r0);
3763 }
3764 break;
3765 case OP_INEG: {
3766 s390_lcgr (code, ins->dreg, ins->sreg1);
3767 }
3768 break;
3769 case OP_IMUL: {
3770 CHECK_SRCDST_COM_I;
3771 s390_msr (code, ins->dreg, src2);
3772 }
3773 break;
3774 case OP_IMUL_IMM: {
3775 if (ins->dreg != ins->sreg1) {
3776 s390_lgfr (code, ins->dreg, ins->sreg1);
3777 }
3778 if (s390_is_imm16 (ins->inst_imm)) {
3779 s390_lghi (code, s390_r13, ins->inst_imm);
3780 } else {
3781 s390_basr (code, s390_r13, 0);
3782 s390_j (code, 4);
3783 s390_word (code, ins->inst_imm);
3784 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3785 }
3786 s390_msr (code, ins->dreg, s390_r13);
3787 }
3788 break;
3789 case OP_IMUL_OVF: {
3790 short int *o[2];
3791 s390_ltr (code, s390_r1, ins->sreg1);
3792 s390_jz (code, 0); CODEPTR(code, o[0]);
3793 s390_ltr (code, s390_r0, ins->sreg2);
3794 s390_jnz (code, 6);
3795 s390_lhi (code, s390_r1, 0);
3796 s390_j (code, 0); CODEPTR(code, o[1]);
3797 s390_xr (code, s390_r0, s390_r1);
3798 s390_msr (code, s390_r1, ins->sreg2);
3799 s390_xr (code, s390_r0, s390_r1);
3800 s390_srl (code, s390_r0, 0, 31);
3801 s390_ltr (code, s390_r0, s390_r0);
3802 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3803 PTRSLOT (code, o[0]);
3804 PTRSLOT (code, o[1]);
3805 s390_lgfr (code, ins->dreg, s390_r1);
3806 }
3807 break;
3808 case OP_IMUL_OVF_UN: {
3809 s390_lhi (code, s390_r0, 0);
3810 s390_lr (code, s390_r1, ins->sreg1);
3811 s390_mlr (code, s390_r0, ins->sreg2);
3812 s390_ltr (code, s390_r0, s390_r0);
3813 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3814 s390_lgfr (code, ins->dreg, s390_r1);
3815 }
3816 break;
3817 case OP_ICONST:
3818 case OP_I8CONST: {
3819 if (s390_is_imm16(ins->inst_c0)) {
3820 s390_lghi (code, ins->dreg, ins->inst_c0);
3821 } else {
3822 s390_basr (code, s390_r13, 0);
3823 s390_j (code, 6);
3824 s390_llong(code, ins->inst_c0);
3825 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3826 }
3827 }
3828 break;
3829 case OP_AOTCONST: {
3830 s390_basr (code, s390_r13, 0);
3831 s390_j (code, 6);
3832 mono_add_patch_info (cfg, code - cfg->native_code,
3833 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3834 s390_llong(code, 0);
3835 s390_lg (code,ins->dreg, 0, s390_r13, 4);
3836 }
3837 break;
3838 case OP_JUMP_TABLE: {
3839 mono_add_patch_info (cfg, code - cfg->native_code,
3840 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3841 s390_basr (code, s390_r13, 0);
3842 s390_j (code, 6);
3843 s390_llong (code, 0);
3844 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3845 }
3846 break;
3847 case OP_MOVE:
3848 if (ins->dreg != ins->sreg1) {
3849 s390_lgr (code, ins->dreg, ins->sreg1);
3850 }
3851 break;
3852 case OP_LCONV_TO_I:
3853 case OP_LCONV_TO_I8:
3854 case OP_SEXT_I4:
3855 s390_lgfr (code, ins->dreg, ins->sreg1);
3856 break;
3857 case OP_LCONV_TO_I4:
3858 s390_lgfr (code, ins->dreg, ins->sreg1);
3859 break;
3860 case OP_LCONV_TO_U:
3861 case OP_LCONV_TO_U8:
3862 case OP_LCONV_TO_U4:
3863 case OP_ZEXT_I4:
3864 s390_llgfr (code, ins->dreg, ins->sreg1);
3865 break;
3866 case OP_LCONV_TO_OVF_U4:
3867 s390_basr (code, s390_r13, 0);
3868 s390_j (code, 6);
3869 s390_llong(code, 4294967295);
3870 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3871 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3872 s390_ltgr (code, ins->sreg1, ins->sreg1);
3873 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3874 s390_llgfr(code, ins->dreg, ins->sreg1);
3875 break;
3876 case OP_LCONV_TO_OVF_I4_UN:
3877 s390_basr (code, s390_r13, 0);
3878 s390_j (code, 6);
3879 s390_llong(code, 2147483647);
3880 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3881 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3882 s390_ltgr (code, ins->sreg1, ins->sreg1);
3883 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3884 s390_lgfr (code, ins->dreg, ins->sreg1);
3885 break;
3886 case OP_FMOVE:
3887 case OP_FCONV_TO_R4: {
3888 if (ins->dreg != ins->sreg1) {
3889 s390_ldr (code, ins->dreg, ins->sreg1);
3890 }
3891 }
3892 break;
3893 case OP_S390_SETF4RET: {
3894 s390_ledbr (code, ins->dreg, ins->sreg1);
3895 }
3896 break;
3897 case OP_JMP: {
3898 if (cfg->method->save_lmf)
3899 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3900
3901 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3902 code = emit_load_volatile_arguments (code, cfg);
3903 }
3904
3905 code = backUpStackPtr(cfg, code);
3906 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3907 mono_add_patch_info (cfg, code - cfg->native_code,
3908 MONO_PATCH_INFO_METHOD_JUMP,
3909 ins->inst_p0);
3910 s390_jcl (code, S390_CC_UN, 0);
3911 }
3912 break;
3913 case OP_CHECK_THIS: {
3914 /* ensure ins->sreg1 is not NULL */
3915 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
3916 s390_ltgr (code, s390_r0, s390_r0);
3917 }
3918 break;
3919 case OP_ARGLIST: {
3920 int offset = cfg->sig_cookie + cfg->stack_usage;
3921
3922 if (s390_is_imm16 (offset))
3923 s390_lghi (code, s390_r0, offset);
3924 else {
3925 s390_basr (code, s390_r13, 0);
3926 s390_j (code, 6);
3927 s390_llong(code, offset);
3928 s390_lg (code, s390_r0, 0, s390_r13, 0);
3929 }
3930 s390_agr (code, s390_r0, cfg->frame_reg);
3931 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
3932 }
3933 break;
3934 case OP_FCALL: {
3935 s390_basr (code, s390_r13, 0);
3936 s390_j (code, 6);
3937 call = (MonoCallInst*)ins;
3938 if (ins->flags & MONO_INST_HAS_METHOD)
3939 mono_add_patch_info (cfg, code-cfg->native_code,
3940 MONO_PATCH_INFO_METHOD,
3941 call->method);
3942 else
3943 mono_add_patch_info (cfg, code-cfg->native_code,
3944 MONO_PATCH_INFO_ABS,
3945 call->fptr);
3946 s390_llong(code, 0);
3947 s390_lg (code, s390_r14, 0, s390_r13, 4);
3948 s390_basr (code, s390_r14, s390_r14);
3949 if (call->signature->ret->type == MONO_TYPE_R4)
3950 s390_ldebr (code, s390_f0, s390_f0);
3951 }
3952 break;
3953 case OP_LCALL:
3954 case OP_VCALL:
3955 case OP_VCALL2:
3956 case OP_VOIDCALL:
3957 case OP_CALL: {
3958 s390_basr (code, s390_r13, 0);
3959 s390_j (code, 6);
3960 call = (MonoCallInst*)ins;
3961 if (ins->flags & MONO_INST_HAS_METHOD)
3962 mono_add_patch_info (cfg, code-cfg->native_code,
3963 MONO_PATCH_INFO_METHOD,
3964 call->method);
3965 else
3966 mono_add_patch_info (cfg, code-cfg->native_code,
3967 MONO_PATCH_INFO_ABS,
3968 call->fptr);
3969 s390_llong(code, 0);
3970 s390_lg (code, s390_r14, 0, s390_r13, 4);
3971 s390_basr (code, s390_r14, s390_r14);
3972 }
3973 break;
3974 case OP_FCALL_REG: {
3975 call = (MonoCallInst*)ins;
3976 s390_lgr (code, s390_r1, ins->sreg1);
3977 s390_basr (code, s390_r14, s390_r1);
3978 if (call->signature->ret->type == MONO_TYPE_R4)
3979 s390_ldebr (code, s390_f0, s390_f0);
3980 }
3981 break;
3982 case OP_LCALL_REG:
3983 case OP_VCALL_REG:
3984 case OP_VCALL2_REG:
3985 case OP_VOIDCALL_REG:
3986 case OP_CALL_REG: {
3987 s390_lgr (code, s390_r1, ins->sreg1);
3988 s390_basr (code, s390_r14, s390_r1);
3989 }
3990 break;
3991 case OP_FCALL_MEMBASE: {
3992 call = (MonoCallInst*)ins;
3993 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3994 s390_basr (code, s390_r14, s390_r1);
3995 if (call->signature->ret->type == MONO_TYPE_R4)
3996 s390_ldebr (code, s390_f0, s390_f0);
3997 }
3998 break;
3999 case OP_LCALL_MEMBASE:
4000 case OP_VCALL_MEMBASE:
4001 case OP_VCALL2_MEMBASE:
4002 case OP_VOIDCALL_MEMBASE:
4003 case OP_CALL_MEMBASE: {
4004 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4005 s390_basr (code, s390_r14, s390_r1);
4006 }
4007 break;
4008 case OP_LOCALLOC: {
4009 int alloca_skip;
4010 int area_offset;
4011
4012 if (cfg->param_area == 0)
4013 alloca_skip = S390_MINIMAL_STACK_SIZE;
4014 else
4015 alloca_skip = cfg->param_area;
4016
4017 area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
4018 s390_lgr (code, s390_r1, ins->sreg1);
4019 if (ins->flags & MONO_INST_INIT)
4020 s390_lgr (code, s390_r0, ins->sreg1);
4021 s390_aghi (code, s390_r1, 14);
4022 s390_srlg (code, s390_r1, s390_r1, 0, 3);
4023 s390_sllg (code, s390_r1, s390_r1, 0, 3);
4024 if (cfg->method->save_lmf) {
4025 /*----------------------------------*/
4026 /* we have to adjust lmf ebp value */
4027 /*----------------------------------*/
4028 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
4029
4030 s390_lgr (code, s390_r13, cfg->frame_reg);
4031 if (s390_is_imm16(lmfOffset))
4032 s390_aghi (code, s390_r13, lmfOffset);
4033 else {
4034 s390_basr (code, s390_r14, 0);
4035 s390_j (code, 4);
4036 s390_word (code, lmfOffset);
4037 s390_agf (code, s390_r13, 0, s390_r14, 4);
4038 }
4039 s390_lgr (code, s390_r14, STK_BASE);
4040 s390_sgr (code, s390_r14, s390_r1);
4041 s390_stg (code, s390_r14, 0, s390_r13,
4042 G_STRUCT_OFFSET(MonoLMF, ebp));
4043 }
4044 s390_lg (code, s390_r13, 0, STK_BASE, 0);
4045 s390_sgr (code, STK_BASE, s390_r1);
4046 s390_stg (code, s390_r13, 0, STK_BASE, 0);
4047 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
4048 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
4049 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
4050 if (ins->flags & MONO_INST_INIT) {
4051 s390_lgr (code, s390_r1, s390_r0);
4052 s390_lgr (code, s390_r0, ins->dreg);
4053 s390_lgr (code, s390_r14, s390_r12);
4054 s390_lghi (code, s390_r13, 0);
4055 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4056 s390_jo (code, -2);
4057 s390_lgr (code, s390_r12, s390_r14);
4058 }
4059 }
4060 break;
4061 case OP_THROW: {
4062 s390_lgr (code, s390_r2, ins->sreg1);
4063 s390_basr (code, s390_r13, 0);
4064 s390_j (code, 6);
4065 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4066 (gpointer) "mono_arch_throw_exception");
4067 s390_llong(code, 0);
4068 s390_lg (code, s390_r14, 0, s390_r13, 4);
4069 s390_basr (code, s390_r14, s390_r14);
4070 }
4071 break;
4072 case OP_RETHROW: {
4073 s390_lgr (code, s390_r2, ins->sreg1);
4074 s390_basr (code, s390_r13, 0);
4075 s390_j (code, 6);
4076 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4077 (gpointer) "mono_arch_rethrow_exception");
4078 s390_llong(code, 0);
4079 s390_lg (code, s390_r14, 0, s390_r13, 4);
4080 s390_basr (code, s390_r14, s390_r14);
4081 }
4082 break;
4083 case OP_START_HANDLER: {
4084 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4085
4086 S390_LONG (code, stg, stg, s390_r14, 0,
4087 spvar->inst_basereg,
4088 spvar->inst_offset);
4089 }
4090 break;
4091 case OP_ENDFILTER: {
4092 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4093
4094 if (ins->sreg1 != s390_r2)
4095 s390_lgr(code, s390_r2, ins->sreg1);
4096 S390_LONG (code, lg, lg, s390_r14, 0,
4097 spvar->inst_basereg,
4098 spvar->inst_offset);
4099 s390_br (code, s390_r14);
4100 }
4101 break;
4102 case OP_ENDFINALLY: {
4103 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4104
4105 S390_LONG (code, lg, lg, s390_r14, 0,
4106 spvar->inst_basereg,
4107 spvar->inst_offset);
4108 s390_br (code, s390_r14);
4109 }
4110 break;
4111 case OP_CALL_HANDLER: {
4112 mono_add_patch_info (cfg, code-cfg->native_code,
4113 MONO_PATCH_INFO_BB, ins->inst_target_bb);
4114 s390_brasl (code, s390_r14, 0);
4115 mono_cfg_add_try_hole (cfg, ins->inst_eh_block, code, bb);
4116 }
4117 break;
4118 case OP_LABEL: {
4119 ins->inst_c0 = code - cfg->native_code;
4120 }
4121 break;
4122 case OP_RELAXED_NOP:
4123 case OP_NOP:
4124 case OP_DUMMY_USE:
4125 case OP_DUMMY_STORE:
4126 case OP_NOT_REACHED:
4127 case OP_NOT_NULL: {
4128 }
4129 break;
4130 case OP_BR:
4131 EMIT_UNCOND_BRANCH(ins);
4132 break;
4133 case OP_BR_REG: {
4134 s390_br (code, ins->sreg1);
4135 }
4136 break;
4137 case OP_CEQ:
4138 case OP_ICEQ:
4139 case OP_LCEQ: {
4140 s390_lghi(code, ins->dreg, 1);
4141 s390_jz (code, 4);
4142 s390_lghi(code, ins->dreg, 0);
4143 }
4144 break;
4145 case OP_CLT:
4146 case OP_ICLT:
4147 case OP_LCLT: {
4148 s390_lghi(code, ins->dreg, 1);
4149 s390_jl (code, 4);
4150 s390_lghi(code, ins->dreg, 0);
4151 }
4152 break;
4153 case OP_CLT_UN:
4154 case OP_ICLT_UN:
4155 case OP_LCLT_UN: {
4156 s390_lghi(code, ins->dreg, 1);
4157 s390_jlo (code, 4);
4158 s390_lghi(code, ins->dreg, 0);
4159 }
4160 break;
4161 case OP_CGT:
4162 case OP_ICGT:
4163 case OP_LCGT: {
4164 s390_lghi(code, ins->dreg, 1);
4165 s390_jh (code, 4);
4166 s390_lghi(code, ins->dreg, 0);
4167 }
4168 break;
4169 case OP_CGT_UN:
4170 case OP_ICGT_UN:
4171 case OP_LCGT_UN: {
4172 s390_lghi(code, ins->dreg, 1);
4173 s390_jho (code, 4);
4174 s390_lghi(code, ins->dreg, 0);
4175 }
4176 break;
4177 case OP_COND_EXC_EQ:
4178 case OP_COND_EXC_IEQ:
4179 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4180 break;
4181 case OP_COND_EXC_NE_UN:
4182 case OP_COND_EXC_INE_UN:
4183 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4184 break;
4185 case OP_COND_EXC_LT:
4186 case OP_COND_EXC_ILT:
4187 case OP_COND_EXC_LT_UN:
4188 case OP_COND_EXC_ILT_UN:
4189 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4190 break;
4191 case OP_COND_EXC_GT:
4192 case OP_COND_EXC_IGT:
4193 case OP_COND_EXC_GT_UN:
4194 case OP_COND_EXC_IGT_UN:
4195 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4196 break;
4197 case OP_COND_EXC_GE:
4198 case OP_COND_EXC_IGE:
4199 case OP_COND_EXC_GE_UN:
4200 case OP_COND_EXC_IGE_UN:
4201 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4202 break;
4203 case OP_COND_EXC_LE:
4204 case OP_COND_EXC_ILE:
4205 case OP_COND_EXC_LE_UN:
4206 case OP_COND_EXC_ILE_UN:
4207 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4208 break;
4209 case OP_COND_EXC_OV:
4210 case OP_COND_EXC_IOV:
4211 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4212 break;
4213 case OP_COND_EXC_NO:
4214 case OP_COND_EXC_INO:
4215 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4216 break;
4217 case OP_COND_EXC_C:
4218 case OP_COND_EXC_IC:
4219 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4220 break;
4221 case OP_COND_EXC_NC:
4222 case OP_COND_EXC_INC:
4223 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4224 break;
4225 case OP_LBEQ:
4226 case OP_IBEQ:
4227 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4228 break;
4229 case OP_LBNE_UN:
4230 case OP_IBNE_UN:
4231 EMIT_COND_BRANCH (ins, S390_CC_NE);
4232 break;
4233 case OP_LBLT:
4234 case OP_LBLT_UN:
4235 case OP_IBLT:
4236 case OP_IBLT_UN:
4237 EMIT_COND_BRANCH (ins, S390_CC_LT);
4238 break;
4239 case OP_LBGT:
4240 case OP_LBGT_UN:
4241 case OP_IBGT:
4242 case OP_IBGT_UN:
4243 EMIT_COND_BRANCH (ins, S390_CC_GT);
4244 break;
4245 case OP_LBGE:
4246 case OP_LBGE_UN:
4247 case OP_IBGE:
4248 case OP_IBGE_UN:
4249 EMIT_COND_BRANCH (ins, S390_CC_GE);
4250 break;
4251 case OP_LBLE:
4252 case OP_LBLE_UN:
4253 case OP_IBLE:
4254 case OP_IBLE_UN:
4255 EMIT_COND_BRANCH (ins, S390_CC_LE);
4256 break;
4257
4258 /* floating point opcodes */
4259 case OP_R8CONST: {
4260 if (*((float *) ins->inst_p0) == 0) {
4261 s390_lzdr (code, ins->dreg);
4262 } else {
4263 s390_basr (code, s390_r13, 0);
4264 s390_j (code, 6);
4265 s390_llong (code, ins->inst_p0);
4266 s390_lg (code, s390_r13, 0, s390_r13, 4);
4267 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4268 }
4269 }
4270 break;
4271 case OP_R4CONST: {
4272 if (*((float *) ins->inst_p0) == 0) {
4273 s390_lzdr (code, ins->dreg);
4274 } else {
4275 s390_basr (code, s390_r13, 0);
4276 s390_j (code, 6);
4277 s390_llong(code, ins->inst_p0);
4278 s390_lg (code, s390_r13, 0, s390_r13, 4);
4279 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4280 }
4281 }
4282 break;
4283 case OP_STORER8_MEMBASE_REG: {
4284 S390_LONG (code, stdy, std, ins->sreg1, 0,
4285 ins->inst_destbasereg, ins->inst_offset);
4286 }
4287 break;
4288 case OP_LOADR8_MEMBASE: {
4289 S390_LONG (code, ldy, ld, ins->dreg, 0,
4290 ins->inst_basereg, ins->inst_offset);
4291 }
4292 break;
4293 case OP_STORER4_MEMBASE_REG: {
4294 s390_ledbr (code, s390_f15, ins->sreg1);
4295 S390_LONG (code, stey, ste, s390_f15, 0,
4296 ins->inst_destbasereg, ins->inst_offset);
4297 }
4298 break;
4299 case OP_LOADR4_MEMBASE: {
4300 S390_LONG (code, ldy, ld, s390_f15, 0,
4301 ins->inst_basereg, ins->inst_offset);
4302 s390_ldebr (code, ins->dreg, s390_f15);
4303 }
4304 break;
4305 case OP_ICONV_TO_R_UN: {
4306 s390_cdfbr (code, ins->dreg, ins->sreg1);
4307 s390_ltr (code, ins->sreg1, ins->sreg1);
4308 s390_jnl (code, 12);
4309 s390_basr (code, s390_r13, 0);
4310 s390_j (code, 6);
4311 s390_word (code, 0x41f00000);
4312 s390_word (code, 0);
4313 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4314 }
4315 break;
4316 case OP_LCONV_TO_R_UN: {
4317 s390_cdgbr (code, ins->dreg, ins->sreg1);
4318 s390_ltgr (code, ins->sreg1, ins->sreg1);
4319 s390_jnl (code, 12);
4320 s390_basr (code, s390_r13, 0);
4321 s390_j (code, 6);
4322 s390_word (code, 0x41f00000);
4323 s390_word (code, 0);
4324 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4325 }
4326 break;
4327 case OP_LCONV_TO_R4:
4328 case OP_ICONV_TO_R4: {
4329 s390_cdgbr (code, ins->dreg, ins->sreg1);
4330 }
4331 break;
4332 case OP_LCONV_TO_R8:
4333 case OP_ICONV_TO_R8: {
4334 s390_cdgbr (code, ins->dreg, ins->sreg1);
4335 }
4336 break;
4337 case OP_FCONV_TO_I1:
4338 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4339 break;
4340 case OP_FCONV_TO_U1:
4341 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4342 break;
4343 case OP_FCONV_TO_I2:
4344 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4345 break;
4346 case OP_FCONV_TO_U2:
4347 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4348 break;
4349 case OP_FCONV_TO_I4:
4350 case OP_FCONV_TO_I:
4351 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4352 break;
4353 case OP_FCONV_TO_U4:
4354 case OP_FCONV_TO_U:
4355 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4356 break;
4357 case OP_FCONV_TO_I8:
4358 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
4359 break;
4360 case OP_LCONV_TO_OVF_I: {
4361 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4362 short int *o[5];
4363 s390_ltgr (code, ins->sreg2, ins->sreg2);
4364 s390_jnl (code, 0); CODEPTR(code, o[0]);
4365 s390_ltgr (code, ins->sreg1, ins->sreg1);
4366 s390_jnl (code, 0); CODEPTR(code, o[1]);
4367 s390_lhi (code, s390_r13, -1);
4368 s390_cgr (code, ins->sreg1, s390_r13);
4369 s390_jnz (code, 0); CODEPTR(code, o[2]);
4370 if (ins->dreg != ins->sreg2)
4371 s390_lgr (code, ins->dreg, ins->sreg2);
4372 s390_j (code, 0); CODEPTR(code, o[3]);
4373 PTRSLOT(code, o[0]);
4374 s390_jz (code, 0); CODEPTR(code, o[4]);
4375 PTRSLOT(code, o[1]);
4376 PTRSLOT(code, o[2]);
4377 mono_add_patch_info (cfg, code - cfg->native_code,
4378 MONO_PATCH_INFO_EXC, "OverflowException");
4379 s390_brasl (code, s390_r14, 0);
4380 PTRSLOT(code, o[3]);
4381 PTRSLOT(code, o[4]);
4382 }
4383 break;
4384 case OP_ABS: {
4385 s390_lpdbr (code, ins->dreg, ins->sreg1);
4386 }
4387 break;
4388 case OP_SQRT: {
4389 s390_sqdbr (code, ins->dreg, ins->sreg1);
4390 }
4391 break;
4392 case OP_FADD: {
4393 CHECK_SRCDST_COM_F;
4394 s390_adbr (code, ins->dreg, src2);
4395 }
4396 break;
4397 case OP_FSUB: {
4398 CHECK_SRCDST_NCOM_F;
4399 s390_sdbr (code, ins->dreg, src2);
4400 }
4401 break;
4402 case OP_FMUL: {
4403 CHECK_SRCDST_COM_F;
4404 s390_mdbr (code, ins->dreg, src2);
4405 }
4406 break;
4407 case OP_FDIV: {
4408 CHECK_SRCDST_NCOM_F;
4409 s390_ddbr (code, ins->dreg, src2);
4410 }
4411 break;
4412 case OP_FNEG: {
4413 s390_lcdbr (code, ins->dreg, ins->sreg1);
4414 }
4415 break;
4416 case OP_FREM: {
4417 CHECK_SRCDST_NCOM_F;
4418 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4419 }
4420 break;
4421 case OP_FCOMPARE: {
4422 s390_cdbr (code, ins->sreg1, ins->sreg2);
4423 }
4424 break;
4425 case OP_FCEQ: {
4426 s390_cdbr (code, ins->sreg1, ins->sreg2);
4427 s390_lghi (code, ins->dreg, 1);
4428 s390_je (code, 4);
4429 s390_lghi (code, ins->dreg, 0);
4430 }
4431 break;
4432 case OP_FCLT: {
4433 s390_cdbr (code, ins->sreg1, ins->sreg2);
4434 s390_lghi (code, ins->dreg, 1);
4435 s390_jl (code, 4);
4436 s390_lghi (code, ins->dreg, 0);
4437 }
4438 break;
4439 case OP_FCLT_UN: {
4440 s390_cdbr (code, ins->sreg1, ins->sreg2);
4441 s390_lghi (code, ins->dreg, 1);
4442 s390_jlo (code, 4);
4443 s390_lghi (code, ins->dreg, 0);
4444 }
4445 break;
4446 case OP_FCGT: {
4447 s390_cdbr (code, ins->sreg1, ins->sreg2);
4448 s390_lghi (code, ins->dreg, 1);
4449 s390_jh (code, 4);
4450 s390_lghi (code, ins->dreg, 0);
4451 }
4452 break;
4453 case OP_FCGT_UN: {
4454 s390_cdbr (code, ins->sreg1, ins->sreg2);
4455 s390_lghi (code, ins->dreg, 1);
4456 s390_jho (code, 4);
4457 s390_lghi (code, ins->dreg, 0);
4458 }
4459 break;
4460 case OP_FBEQ: {
4461 short *o;
4462 s390_jo (code, 0); CODEPTR(code, o);
4463 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4464 PTRSLOT (code, o);
4465 }
4466 break;
4467 case OP_FBNE_UN:
4468 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4469 break;
4470 case OP_FBLT: {
4471 short *o;
4472 s390_jo (code, 0); CODEPTR(code, o);
4473 EMIT_COND_BRANCH (ins, S390_CC_LT);
4474 PTRSLOT (code, o);
4475 }
4476 break;
4477 case OP_FBLT_UN:
4478 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4479 break;
4480 case OP_FBGT: {
4481 short *o;
4482 s390_jo (code, 0); CODEPTR(code, o);
4483 EMIT_COND_BRANCH (ins, S390_CC_GT);
4484 PTRSLOT (code, o);
4485 }
4486 break;
4487 case OP_FBGT_UN:
4488 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4489 break;
4490 case OP_FBGE: {
4491 short *o;
4492 s390_jo (code, 0); CODEPTR(code, o);
4493 EMIT_COND_BRANCH (ins, S390_CC_GE);
4494 PTRSLOT (code, o);
4495 }
4496 break;
4497 case OP_FBGE_UN:
4498 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4499 break;
4500 case OP_FBLE: {
4501 short *o;
4502 s390_jo (code, 0); CODEPTR(code, o);
4503 EMIT_COND_BRANCH (ins, S390_CC_LE);
4504 PTRSLOT (code, o);
4505 }
4506 break;
4507 case OP_FBLE_UN:
4508 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4509 break;
4510 case OP_CKFINITE: {
4511 short *o;
4512 s390_lhi (code, s390_r13, 0x7f);
4513 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4514 s390_jz (code, 0); CODEPTR(code, o);
4515 mono_add_patch_info (cfg, code - cfg->native_code,
4516 MONO_PATCH_INFO_EXC, "ArithmeticException");
4517 s390_brasl (code, s390_r14,0);
4518 PTRSLOT(code, o);
4519 }
4520 break;
4521 case OP_S390_MOVE: {
4522 if (ins->backend.size > 0) {
4523 if (ins->backend.size <= 256) {
4524 s390_mvc (code, ins->backend.size, ins->dreg,
4525 ins->inst_offset, ins->sreg1, ins->inst_imm);
4526 } else {
4527 s390_lgr (code, s390_r0, ins->dreg);
4528 if (ins->inst_offset > 0) {
4529 if (s390_is_imm16 (ins->inst_offset)) {
4530 s390_aghi (code, s390_r0, ins->inst_offset);
4531 } else {
4532 s390_basr (code, s390_r13, 0);
4533 s390_j (code, 6);
4534 s390_llong(code, ins->inst_offset);
4535 s390_ag (code, s390_r0, 0, s390_r13, 4);
4536 }
4537 }
4538 s390_lgr (code, s390_r12, ins->sreg1);
4539 if (ins->inst_imm > 0) {
4540 if (s390_is_imm16 (ins->inst_imm)) {
4541 s390_aghi (code, s390_r12, ins->inst_imm);
4542 } else {
4543 s390_basr (code, s390_r13, 0);
4544 s390_j (code, 6);
4545 s390_llong(code, ins->inst_imm);
4546 s390_ag (code, s390_r12, 0, s390_r13, 4);
4547 }
4548 }
4549 if (s390_is_imm16 (ins->backend.size)) {
4550 s390_lghi (code, s390_r1, ins->backend.size);
4551 } else {
4552 s390_basr (code, s390_r13, 0);
4553 s390_j (code, 6);
4554 s390_llong(code, ins->backend.size);
4555 s390_lg (code, s390_r1, 0, s390_r13, 4);
4556 }
4557 s390_lgr (code, s390_r13, s390_r1);
4558 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4559 s390_jo (code, -2);
4560 }
4561 }
4562 }
4563 break;
4564 case OP_ATOMIC_ADD_I8: {
4565 s390_lgr (code, s390_r1, ins->sreg2);
4566 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4567 s390_agr (code, s390_r1, s390_r0);
4568 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4569 s390_jnz (code, -10);
4570 s390_lgr (code, ins->dreg, s390_r1);
4571 }
4572 break;
4573 case OP_ATOMIC_ADD_NEW_I8: {
4574 s390_lgr (code, s390_r1, ins->sreg2);
4575 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4576 s390_agr (code, s390_r1, s390_r0);
4577 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4578 s390_jnz (code, -10);
4579 s390_lgr (code, ins->dreg, s390_r1);
4580 }
4581 break;
4582 case OP_ATOMIC_EXCHANGE_I8: {
4583 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4584 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4585 s390_jnz (code, -6);
4586 s390_lgr (code, ins->dreg, s390_r0);
4587 }
4588 break;
4589 case OP_ATOMIC_ADD_I4: {
4590 s390_lgfr(code, s390_r1, ins->sreg2);
4591 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4592 s390_agr (code, s390_r1, s390_r0);
4593 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4594 s390_jnz (code, -9);
4595 s390_lgfr(code, ins->dreg, s390_r1);
4596 }
4597 break;
4598 case OP_ATOMIC_ADD_NEW_I4: {
4599 s390_lgfr(code, s390_r1, ins->sreg2);
4600 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4601 s390_agr (code, s390_r1, s390_r0);
4602 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4603 s390_jnz (code, -9);
4604 s390_lgfr(code, ins->dreg, s390_r1);
4605 }
4606 break;
4607 case OP_ATOMIC_EXCHANGE_I4: {
4608 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4609 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4610 s390_jnz (code, -4);
4611 s390_lgfr(code, ins->dreg, s390_r0);
4612 }
4613 break;
4614 case OP_S390_BKCHAIN: {
4615 s390_lgr (code, ins->dreg, ins->sreg1);
4616 if (s390_is_imm16 (cfg->stack_offset)) {
4617 s390_aghi (code, ins->dreg, cfg->stack_offset);
4618 } else {
4619 s390_basr (code, s390_r13, 0);
4620 s390_j (code, 6);
4621 s390_llong(code, cfg->stack_offset);
4622 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4623 }
4624 }
4625 break;
4626 case OP_MEMORY_BARRIER: {
4627 }
4628 break;
4629 default:
4630 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4631 g_assert_not_reached ();
4632 }
4633
4634 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4635 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4636 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4637 g_assert_not_reached ();
4638 }
4639
4640 cpos += max_len;
4641
4642 last_offset = offset;
4643 }
4644
4645 cfg->code_len = code - cfg->native_code;
4646 }
4647
4648 /*========================= End of Function ========================*/
4649
4650 /*------------------------------------------------------------------*/
4651 /* */
4652 /* Name - mono_arch_register_lowlevel_calls */
4653 /* */
4654 /* Function - Register routines to help with --trace operation. */
4655 /* */
4656 /*------------------------------------------------------------------*/
4657
4658 void
4659 mono_arch_register_lowlevel_calls (void)
4660 {
4661 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4662 }
4663
4664 /*========================= End of Function ========================*/
4665
4666 /*------------------------------------------------------------------*/
4667 /* */
4668 /* Name - mono_arch_patch_code */
4669 /* */
4670 /* Function - Process the patch data created during the */
4671 /* instruction build process. This resolves jumps, */
4672 /* calls, variables etc. */
4673 /* */
4674 /*------------------------------------------------------------------*/
4675
4676 void
4677 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4678 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4679 {
4680 MonoJumpInfo *patch_info;
4681
4682 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4683 unsigned char *ip = patch_info->ip.i + code;
4684 gconstpointer target = NULL;
4685
4686 target = mono_resolve_patch_target (method, domain, code,
4687 patch_info, run_cctors);
4688
4689 switch (patch_info->type) {
4690 case MONO_PATCH_INFO_IP:
4691 case MONO_PATCH_INFO_EXC_NAME:
4692 case MONO_PATCH_INFO_LDSTR:
4693 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4694 case MONO_PATCH_INFO_LDTOKEN:
4695 case MONO_PATCH_INFO_EXC:
4696 case MONO_PATCH_INFO_ABS:
4697 case MONO_PATCH_INFO_METHOD:
4698 case MONO_PATCH_INFO_INTERNAL_METHOD:
4699 case MONO_PATCH_INFO_CLASS_INIT:
4700 s390_patch_addr (ip, (guint64) target);
4701 continue;
4702 case MONO_PATCH_INFO_SWITCH:
4703 /*----------------------------------*/
4704 /* ip points at the basr r13,0/j +4 */
4705 /* instruction the vtable value */
4706 /* follows this (i.e. ip+6) */
4707 /*----------------------------------*/
4708 *((gconstpointer *)(ip+6)) = target;
4709 continue;
4710 case MONO_PATCH_INFO_METHODCONST:
4711 case MONO_PATCH_INFO_CLASS:
4712 case MONO_PATCH_INFO_IMAGE:
4713 case MONO_PATCH_INFO_FIELD:
4714 case MONO_PATCH_INFO_IID:
4715 target = S390_RELATIVE(target, ip);
4716 s390_patch_rel (ip, (guint64) target);
4717 continue;
4718 case MONO_PATCH_INFO_R4:
4719 case MONO_PATCH_INFO_R8:
4720 case MONO_PATCH_INFO_METHOD_REL:
4721 g_assert_not_reached ();
4722 continue;
4723 default:
4724 target = S390_RELATIVE(target, ip);
4725 ip += 2;
4726 s390_patch_rel (ip, (guint64) target);
4727 }
4728 }
4729 }
4730
4731 /*========================= End of Function ========================*/
4732
4733 /*------------------------------------------------------------------*/
4734 /* */
4735 /* Name - emit_load_volatile_arguments */
4736 /* */
4737 /* Function - Emit the instructions to reload parameter regist- */
4738 /* registers for use with "tail" operations. */
4739 /* */
4740 /* The register loading operations performed here */
4741 /* are the mirror of the store operations performed */
4742 /* in mono_arch_emit_prolog and need to be kept in */
4743 /* synchronization with it. */
4744 /* */
4745 /*------------------------------------------------------------------*/
4746
4747 guint8 *
4748 emit_load_volatile_arguments (guint8 *code, MonoCompile *cfg)
4749 {
4750 MonoInst *inst;
4751 MonoMethod *method = cfg->method;
4752 MonoMethodSignature *sig = mono_method_signature(method);
4753 int pos = 0, i;
4754 CallInfo *cinfo;
4755
4756 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
4757
4758 if (cinfo->struct_ret) {
4759 ArgInfo *ainfo = &cinfo->ret;
4760 inst = cfg->vret_addr;
4761 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4762 }
4763
4764 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4765 ArgInfo *ainfo = cinfo->args + i;
4766 inst = cfg->args [pos];
4767
4768 if (inst->opcode == OP_REGVAR) {
4769 if (ainfo->regtype == RegTypeGeneral)
4770 s390_lgr (code, ainfo->reg, inst->dreg);
4771 else if (ainfo->regtype == RegTypeFP) {
4772 if (inst->dreg != ainfo->reg) {
4773 if (ainfo->size == 4) {
4774 s390_ldebr (code, ainfo->reg, inst->dreg);
4775 } else {
4776 s390_ldr (code, ainfo->reg, inst->dreg);
4777 }
4778 }
4779 }
4780 else if (ainfo->regtype == RegTypeBase) {
4781 } else
4782 g_assert_not_reached ();
4783 } else {
4784 if (ainfo->regtype == RegTypeGeneral) {
4785 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4786 g_assert_not_reached();
4787 switch (ainfo->size) {
4788 case 1:
4789 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4790 break;
4791 case 2:
4792 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4793 break;
4794 case 4:
4795 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4796 break;
4797 case 8:
4798 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4799 break;
4800 }
4801 } else if (ainfo->regtype == RegTypeBase) {
4802 } else if (ainfo->regtype == RegTypeFP) {
4803 if (ainfo->size == 8)
4804 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4805 else if (ainfo->size == 4)
4806 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4807 else
4808 g_assert_not_reached ();
4809 } else if (ainfo->regtype == RegTypeStructByVal) {
4810 if (ainfo->reg != STK_BASE) {
4811 switch (ainfo->size) {
4812 case 1:
4813 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4814 break;
4815 case 2:
4816 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4817 break;
4818 case 4:
4819 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4820 break;
4821 case 8:
4822 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4823 break;
4824 }
4825 }
4826 } else if (ainfo->regtype == RegTypeStructByAddr) {
4827 if (ainfo->reg != STK_BASE) {
4828 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4829 }
4830 } else
4831 g_assert_not_reached ();
4832 }
4833 pos++;
4834 }
4835
4836 return code;
4837 }
4838
4839 /*========================= End of Function ========================*/
4840
4841 /*------------------------------------------------------------------*/
4842 /* */
4843 /* Name - mono_arch_emit_prolog */
4844 /* */
4845 /* Function - Create the instruction sequence for a function */
4846 /* prolog. */
4847 /* */
4848 /*------------------------------------------------------------------*/
4849
4850 guint8 *
4851 mono_arch_emit_prolog (MonoCompile *cfg)
4852 {
4853 MonoMethod *method = cfg->method;
4854 MonoBasicBlock *bb;
4855 MonoMethodSignature *sig;
4856 MonoInst *inst;
4857 int alloc_size, pos, max_offset, i;
4858 guint8 *code;
4859 CallInfo *cinfo;
4860 int tracing = 0;
4861 int lmfOffset;
4862
4863 cfg->code_size = 512;
4864
4865 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4866 tracing = 1;
4867 cfg->code_size += 256;
4868 }
4869
4870 if (method->save_lmf)
4871 cfg->code_size += 200;
4872
4873 cfg->native_code = code = g_malloc (cfg->code_size);
4874
4875 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4876
4877 if (cfg->arch.bkchain_reg != -1)
4878 s390_lgr (code, cfg->arch.bkchain_reg, STK_BASE);
4879
4880 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4881 cfg->used_int_regs |= 1 << 11;
4882 }
4883
4884 alloc_size = cfg->stack_offset;
4885
4886 cfg->stack_usage = alloc_size;
4887 s390_lgr (code, s390_r11, STK_BASE);
4888 if (s390_is_imm16 (alloc_size)) {
4889 s390_aghi (code, STK_BASE, -alloc_size);
4890 } else {
4891 int stackSize = alloc_size;
4892 while (stackSize > 32767) {
4893 s390_aghi (code, STK_BASE, -32767);
4894 stackSize -= 32767;
4895 }
4896 s390_aghi (code, STK_BASE, -stackSize);
4897 }
4898 s390_stg (code, s390_r11, 0, STK_BASE, 0);
4899
4900 if (cfg->frame_reg != STK_BASE)
4901 s390_lgr (code, s390_r11, STK_BASE);
4902
4903 /* compute max_offset in order to use short forward jumps
4904 * we always do it on s390 because the immediate displacement
4905 * for jumps is too small
4906 */
4907 max_offset = 0;
4908 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4909 MonoInst *ins;
4910 bb->max_offset = max_offset;
4911
4912 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4913 max_offset += 6;
4914
4915 MONO_BB_FOR_EACH_INS (bb, ins)
4916 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4917 }
4918
4919 /* load arguments allocated to register from the stack */
4920 sig = mono_method_signature (method);
4921 pos = 0;
4922
4923 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4924
4925 if (cinfo->struct_ret) {
4926 ArgInfo *ainfo = &cinfo->ret;
4927 inst = cfg->vret_addr;
4928 inst->backend.size = ainfo->vtsize;
4929 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4930 }
4931
4932 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4933 ArgInfo *ainfo = cinfo->args + i;
4934 inst = cfg->args [pos];
4935
4936 if (inst->opcode == OP_VTARG_ADDR)
4937 inst = inst->inst_left;
4938
4939 if (inst->opcode == OP_REGVAR) {
4940 if (ainfo->regtype == RegTypeGeneral)
4941 s390_lgr (code, inst->dreg, ainfo->reg);
4942 else if (ainfo->regtype == RegTypeFP) {
4943 if (inst->dreg != ainfo->reg) {
4944 if (ainfo->size == 4) {
4945 s390_ledbr (code, inst->dreg, ainfo->reg);
4946 } else {
4947 s390_ldr (code, inst->dreg, ainfo->reg);
4948 }
4949 }
4950 }
4951 else if (ainfo->regtype == RegTypeBase) {
4952 s390_lgr (code, s390_r13, STK_BASE);
4953 s390_aghi (code, s390_r13, alloc_size);
4954 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
4955 } else
4956 g_assert_not_reached ();
4957
4958 if (cfg->verbose_level > 2)
4959 g_print ("Argument %d assigned to register %s\n",
4960 pos, mono_arch_regname (inst->dreg));
4961 } else {
4962 if (ainfo->regtype == RegTypeGeneral) {
4963 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4964 g_assert_not_reached();
4965 switch (ainfo->size) {
4966 case 1:
4967 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4968 break;
4969 case 2:
4970 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4971 break;
4972 case 4:
4973 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4974 break;
4975 case 8:
4976 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4977 break;
4978 }
4979 } else if (ainfo->regtype == RegTypeBase) {
4980 } else if (ainfo->regtype == RegTypeFP) {
4981 if (ainfo->size == 8)
4982 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4983 else if (ainfo->size == 4)
4984 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4985 else
4986 g_assert_not_reached ();
4987 } else if (ainfo->regtype == RegTypeStructByVal) {
4988 int doffset = inst->inst_offset;
4989 int reg;
4990 if (ainfo->reg != STK_BASE)
4991 reg = ainfo->reg;
4992 else {
4993 reg = s390_r0;
4994 s390_lgr (code, s390_r13, STK_BASE);
4995 s390_aghi (code, s390_r13, alloc_size);
4996 }
4997 switch (ainfo->size) {
4998 case 1:
4999 if (ainfo->reg == STK_BASE)
5000 s390_ic (code, reg, 0, s390_r13, ainfo->offset+7);
5001 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
5002 break;
5003 case 2:
5004 if (ainfo->reg == STK_BASE)
5005 s390_lh (code, reg, 0, s390_r13, ainfo->offset+6);
5006 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
5007 break;
5008 case 4:
5009 if (ainfo->reg == STK_BASE)
5010 s390_l (code, reg, 0, s390_r13, ainfo->offset+4);
5011 s390_st (code, reg, 0, inst->inst_basereg, doffset);
5012 break;
5013 case 8:
5014 if (ainfo->reg == STK_BASE)
5015 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
5016 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
5017 break;
5018 }
5019 } else if (ainfo->regtype == RegTypeStructByAddr) {
5020 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5021 } else if (ainfo->regtype == RegTypeStructByAddrOnStack) {
5022 } else
5023 g_assert_not_reached ();
5024 }
5025 pos++;
5026 }
5027
5028 if (method->save_lmf) {
5029 /*---------------------------------------------------------------*/
5030 /* we build the MonoLMF structure on the stack - see mini-s390.h */
5031 /*---------------------------------------------------------------*/
5032 lmfOffset = alloc_size - sizeof(MonoLMF);
5033
5034 s390_lgr (code, s390_r13, cfg->frame_reg);
5035 s390_aghi (code, s390_r13, lmfOffset);
5036
5037 /*---------------------------------------------------------------*/
5038 /* Preserve the parameter registers while we fix up the lmf */
5039 /*---------------------------------------------------------------*/
5040 s390_stmg (code, s390_r2, s390_r6, s390_r13,
5041 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
5042
5043 /*---------------------------------------------------------------*/
5044 /* On return from this call r2 have the address of the &lmf */
5045 /*---------------------------------------------------------------*/
5046 s390_basr(code, s390_r14, 0);
5047 s390_j (code, 6);
5048 mono_add_patch_info (cfg, code - cfg->native_code,
5049 MONO_PATCH_INFO_INTERNAL_METHOD,
5050 (gpointer)"mono_get_lmf_addr");
5051 s390_llong(code, 0);
5052 s390_lg (code, s390_r1, 0, s390_r14, 4);
5053 s390_basr (code, s390_r14, s390_r1);
5054
5055 /*---------------------------------------------------------------*/
5056 /* Set lmf.lmf_addr = jit_tls->lmf */
5057 /*---------------------------------------------------------------*/
5058 s390_stg (code, s390_r2, 0, s390_r13,
5059 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
5060
5061 /*---------------------------------------------------------------*/
5062 /* Get current lmf */
5063 /*---------------------------------------------------------------*/
5064 s390_lg (code, s390_r0, 0, s390_r2, 0);
5065
5066 /*---------------------------------------------------------------*/
5067 /* Set our lmf as the current lmf */
5068 /*---------------------------------------------------------------*/
5069 s390_stg (code, s390_r13, 0, s390_r2, 0);
5070
5071 /*---------------------------------------------------------------*/
5072 /* Have our lmf.previous_lmf point to the last lmf */
5073 /*---------------------------------------------------------------*/
5074 s390_stg (code, s390_r0, 0, s390_r13,
5075 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
5076
5077 /*---------------------------------------------------------------*/
5078 /* save method info */
5079 /*---------------------------------------------------------------*/
5080 s390_basr (code, s390_r1, 0);
5081 s390_j (code, 6);
5082 s390_llong (code, method);
5083 s390_lg (code, s390_r1, 0, s390_r1, 4);
5084 s390_stg (code, s390_r1, 0, s390_r13,
5085 G_STRUCT_OFFSET(MonoLMF, method));
5086
5087 /*---------------------------------------------------------------*/
5088 /* save the current IP */
5089 /*---------------------------------------------------------------*/
5090 s390_stg (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
5091 s390_basr (code, s390_r1, 0);
5092 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
5093
5094 /*---------------------------------------------------------------*/
5095 /* Save general and floating point registers */
5096 /*---------------------------------------------------------------*/
5097 s390_stmg (code, s390_r2, s390_r12, s390_r13,
5098 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
5099 for (i = 0; i < 16; i++) {
5100 s390_std (code, i, 0, s390_r13,
5101 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
5102 }
5103
5104 /*---------------------------------------------------------------*/
5105 /* Restore the parameter registers now that we've set up the lmf */
5106 /*---------------------------------------------------------------*/
5107 s390_lmg (code, s390_r2, s390_r6, s390_r13,
5108 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
5109 }
5110
5111 if (tracing)
5112 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
5113
5114 cfg->code_len = code - cfg->native_code;
5115 g_assert (cfg->code_len < cfg->code_size);
5116
5117 return code;
5118 }
5119
5120 /*========================= End of Function ========================*/
5121
5122 /*------------------------------------------------------------------*/
5123 /* */
5124 /* Name - mono_arch_emit_epilog */
5125 /* */
5126 /* Function - Emit the instructions for a function epilog. */
5127 /* */
5128 /*------------------------------------------------------------------*/
5129
5130 void
5131 mono_arch_emit_epilog (MonoCompile *cfg)
5132 {
5133 MonoMethod *method = cfg->method;
5134 int tracing = 0;
5135 guint8 *code;
5136 int max_epilog_size = 96;
5137
5138 if (cfg->method->save_lmf)
5139 max_epilog_size += 128;
5140
5141 if (mono_jit_trace_calls != NULL)
5142 max_epilog_size += 128;
5143
5144 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5145 max_epilog_size += 128;
5146
5147 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
5148 cfg->code_size *= 2;
5149 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5150 mono_jit_stats.code_reallocs++;
5151 }
5152
5153 code = cfg->native_code + cfg->code_len;
5154
5155 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5156 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5157 tracing = 1;
5158 }
5159
5160 if (method->save_lmf)
5161 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
5162
5163 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
5164 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
5165 else
5166 code = backUpStackPtr(cfg, code);
5167
5168 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5169 s390_br (code, s390_r14);
5170
5171 cfg->code_len = code - cfg->native_code;
5172
5173 g_assert (cfg->code_len < cfg->code_size);
5174
5175 }
5176
5177 /*========================= End of Function ========================*/
5178
5179 /*------------------------------------------------------------------*/
5180 /* */
5181 /* Name - mono_arch_emit_exceptions */
5182 /* */
5183 /* Function - Emit the blocks to handle exception conditions. */
5184 /* */
5185 /*------------------------------------------------------------------*/
5186
5187 void
5188 mono_arch_emit_exceptions (MonoCompile *cfg)
5189 {
5190 MonoJumpInfo *patch_info;
5191 guint8 *code;
5192 int nThrows = 0,
5193 exc_count = 0,
5194 iExc;
5195 guint32 code_size;
5196 MonoClass *exc_classes [MAX_EXC];
5197 guint8 *exc_throw_start [MAX_EXC];
5198
5199 for (patch_info = cfg->patch_info;
5200 patch_info;
5201 patch_info = patch_info->next) {
5202 if (patch_info->type == MONO_PATCH_INFO_EXC)
5203 exc_count++;
5204 }
5205
5206 code_size = exc_count * 48;
5207
5208 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
5209 cfg->code_size *= 2;
5210 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5211 mono_jit_stats.code_reallocs++;
5212 }
5213
5214 code = cfg->native_code + cfg->code_len;
5215
5216 /*---------------------------------------------------------------------*/
5217 /* Add code to raise exceptions */
5218 /*---------------------------------------------------------------------*/
5219 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5220 switch (patch_info->type) {
5221 case MONO_PATCH_INFO_EXC: {
5222 guint8 *ip = patch_info->ip.i + cfg->native_code;
5223 MonoClass *exc_class;
5224 guint64 throw_ip;
5225
5226 /*-----------------------------------------------------*/
5227 /* Patch the branch in epilog to come here */
5228 /*-----------------------------------------------------*/
5229 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
5230
5231 exc_class = mono_class_from_name (mono_defaults.corlib,
5232 "System",
5233 patch_info->data.name);
5234 g_assert (exc_class);
5235 throw_ip = patch_info->ip.i;
5236
5237 for (iExc = 0; iExc < nThrows; ++iExc)
5238 if (exc_classes [iExc] == exc_class)
5239 break;
5240
5241 if (iExc < nThrows) {
5242 s390_jcl (code, S390_CC_UN,
5243 (guint64) exc_throw_start [iExc]);
5244 patch_info->type = MONO_PATCH_INFO_NONE;
5245 } else {
5246
5247 if (nThrows < MAX_EXC) {
5248 exc_classes [nThrows] = exc_class;
5249 exc_throw_start [nThrows] = code;
5250 }
5251
5252 /*---------------------------------------------*/
5253 /* Patch the parameter passed to the handler */
5254 /*---------------------------------------------*/
5255 s390_basr (code, s390_r13, 0);
5256 s390_j (code, 6);
5257 // s390_llong(code, patch_info->data.target);
5258 s390_llong(code, exc_class->type_token);
5259 /*---------------------------------------------*/
5260 /* Load return address & parameter register */
5261 /*---------------------------------------------*/
5262 s390_larl (code, s390_r14, (guint64)S390_RELATIVE((patch_info->ip.i +
5263 cfg->native_code + 8), code));
5264 s390_lg (code, s390_r2, 0, s390_r13, 4);
5265 /*---------------------------------------------*/
5266 /* Reuse the current patch to set the jump */
5267 /*---------------------------------------------*/
5268 s390_basr (code, s390_r13, 0);
5269 s390_j (code, 6);
5270 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5271 patch_info->data.name = "mono_arch_throw_corlib_exception";
5272 patch_info->ip.i = code - cfg->native_code;
5273 s390_llong(code, 0);
5274 s390_lg (code, s390_r1, 0, s390_r13, 4);
5275 s390_br (code, s390_r1);
5276 }
5277 break;
5278 }
5279 default:
5280 /* do nothing */
5281 break;
5282 }
5283 }
5284
5285 cfg->code_len = code - cfg->native_code;
5286
5287 g_assert (cfg->code_len < cfg->code_size);
5288
5289 }
5290
5291 /*========================= End of Function ========================*/
5292
5293 /*------------------------------------------------------------------*/
5294 /* */
5295 /* Name - mono_arch_setup_jit_tls_data */
5296 /* */
5297 /* Function - Setup the JIT's Thread Level Specific Data. */
5298 /* */
5299 /*------------------------------------------------------------------*/
5300
5301 void
5302 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
5303 {
5304 if (!tls_offset_inited) {
5305 tls_offset_inited = TRUE;
5306
5307 #if HAVE_KW_THREAD
5308 # if 0
5309 __asm__ ("\tear\t%r1,0\n"
5310 "\tlr\t%0,%3\n"
5311 "\tsr\t%0,%r1\n"
5312 "\tlr\t%1,%4\n"
5313 "\tsr\t%1,%r1\n"
5314 "\tlr\t%2,%5\n"
5315 "\tsr\t%2,%r1\n"
5316 : "=r" (appdomain_tls_offset),
5317 "=r" (thread_tls_offset),
5318 "=r" (lmf_tls_offset)
5319 : "r" (&tls_appdomain),
5320 "r" (&tls_current_object),
5321 "r" (&mono_lmf_addr)
5322 : "1", "cc");
5323 # endif
5324 #endif
5325 }
5326
5327 if (!lmf_addr_key_inited) {
5328 lmf_addr_key_inited = TRUE;
5329 pthread_key_create (&lmf_addr_key, NULL);
5330 }
5331 pthread_setspecific (lmf_addr_key, &tls->lmf);
5332
5333 }
5334
5335 /*========================= End of Function ========================*/
5336
5337 /*------------------------------------------------------------------*/
5338 /* */
5339 /* Name - mono_arch_free_jit_tls_data */
5340 /* */
5341 /* Function - Free tls data. */
5342 /* */
5343 /*------------------------------------------------------------------*/
5344
5345 void
5346 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5347 {
5348 }
5349
5350 /*========================= End of Function ========================*/
5351
5352 /*------------------------------------------------------------------*/
5353 /* */
5354 /* Name - mono_arch_emit_inst_for_method */
5355 /* */
5356 /*------------------------------------------------------------------*/
5357
5358 MonoInst*
5359 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5360 {
5361 return NULL;
5362 }
5363
5364 /*========================= End of Function ========================*/
5365
5366 /*------------------------------------------------------------------*/
5367 /* */
5368 /* Name - mono_arch_decompose_opts */
5369 /* */
5370 /* Function - Decompose opcode into a System z opcode. */
5371 /* */
5372 /*------------------------------------------------------------------*/
5373
5374 void
5375 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5376 {
5377 /*
5378 * Have to rename these to avoid being decomposed normally, since the normal
5379 * decomposition does not work on S390.
5380 */
5381 switch (ins->opcode) {
5382 case OP_ISUB_OVF:
5383 ins->opcode = OP_S390_ISUB_OVF;
5384 break;
5385 case OP_ISUB_OVF_UN:
5386 ins->opcode = OP_S390_ISUB_OVF_UN;
5387 break;
5388 case OP_IADD_OVF:
5389 ins->opcode = OP_S390_IADD_OVF;
5390 break;
5391 case OP_IADD_OVF_UN:
5392 ins->opcode = OP_S390_IADD_OVF_UN;
5393 break;
5394 case OP_LADD_OVF:
5395 ins->opcode = OP_S390_LADD_OVF;
5396 break;
5397 case OP_LADD_OVF_UN:
5398 ins->opcode = OP_S390_LADD_OVF_UN;
5399 break;
5400 case OP_LSUB_OVF:
5401 ins->opcode = OP_S390_LSUB_OVF;
5402 break;
5403 case OP_LSUB_OVF_UN:
5404 ins->opcode = OP_S390_LSUB_OVF_UN;
5405 break;
5406 default:
5407 break;
5408 }
5409 }
5410
5411 /*========================= End of Function ========================*/
5412
5413 /*------------------------------------------------------------------*/
5414 /* */
5415 /* Name - mono_arch_print_tree */
5416 /* */
5417 /* Function - Print platform-specific opcode details. */
5418 /* */
5419 /* Returns - 1 - opcode details have been printed */
5420 /* 0 - opcode details have not been printed */
5421 /* */
5422 /*------------------------------------------------------------------*/
5423
5424 gboolean
5425 mono_arch_print_tree (MonoInst *tree, int arity)
5426 {
5427 gboolean done;
5428
5429 switch (tree->opcode) {
5430 case OP_S390_LOADARG:
5431 case OP_S390_ARGREG:
5432 case OP_S390_ARGPTR:
5433 printf ("[0x%lx(%s)]", tree->inst_offset,
5434 mono_arch_regname (tree->inst_basereg));
5435 done = 1;
5436 break;
5437 case OP_S390_STKARG:
5438 printf ("[0x%lx(previous_frame)]",
5439 tree->inst_offset);
5440 done = 1;
5441 break;
5442 case OP_S390_MOVE:
5443 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5444 tree->inst_offset, tree->backend.size,
5445 mono_arch_regname(tree->dreg),
5446 tree->inst_imm,
5447 mono_arch_regname(tree->sreg1));
5448 done = 1;
5449 break;
5450 case OP_S390_SETF4RET:
5451 printf ("[f%s,f%s]",
5452 mono_arch_regname (tree->dreg),
5453 mono_arch_regname (tree->sreg1));
5454 done = 1;
5455 break;
5456 case OP_TLS_GET:
5457 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5458 tree->inst_imm,
5459 mono_arch_regname (tree->sreg1));
5460 done = 1;
5461 break;
5462 case OP_S390_BKCHAIN:
5463 printf ("[previous_frame(%s)]",
5464 mono_arch_regname (tree->sreg1));
5465 done = 1;
5466 default:
5467 done = 0;
5468 }
5469 return (done);
5470 }
5471
5472 /*========================= End of Function ========================*/
5473
5474 /*------------------------------------------------------------------*/
5475 /* */
5476 /* Name - mono_arch_regalloc_cost */
5477 /* */
5478 /* Function - Determine the cost, in the number of memory */
5479 /* references, of the action of allocating the var- */
5480 /* iable VMV into a register during global register */
5481 /* allocation. */
5482 /* */
5483 /* Returns - Cost */
5484 /* */
5485 /*------------------------------------------------------------------*/
5486
5487 guint32
5488 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5489 {
5490 /* FIXME: */
5491 return 2;
5492 }
5493
5494 /*========================= End of Function ========================*/
5495
5496 /*------------------------------------------------------------------*/
5497 /* */
5498 /* Name - mono_arch_get_domain_intrinsic */
5499 /* */
5500 /* Function - */
5501 /* */
5502 /* Returns - */
5503 /* */
5504 /*------------------------------------------------------------------*/
5505
5506 MonoInst *
5507 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5508 {
5509 MonoInst *ins;
5510
5511 if (appdomain_tls_offset == -1)
5512 return NULL;
5513
5514 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5515 ins->inst_offset = appdomain_tls_offset;
5516 return (ins);
5517 }
5518
5519 /*========================= End of Function ========================*/
5520
5521 /*------------------------------------------------------------------*/
5522 /* */
5523 /* Name - mono_arch_flush_register_windows */
5524 /* */
5525 /* Function - */
5526 /* */
5527 /* Returns - */
5528 /* */
5529 /*------------------------------------------------------------------*/
5530
5531 void
5532 mono_arch_flush_register_windows (void)
5533 {
5534 }
5535
5536 /*========================= End of Function ========================*/
5537
5538 /*------------------------------------------------------------------*/
5539 /* */
5540 /* Name - mono_arch_get_lmf_addr */
5541 /* */
5542 /* Function - */
5543 /* */
5544 /* Returns - */
5545 /* */
5546 /*------------------------------------------------------------------*/
5547
5548 gpointer
5549 mono_arch_get_lmf_addr (void)
5550 {
5551 return pthread_getspecific (lmf_addr_key);
5552 }
5553
5554 /*========================= End of Function ========================*/
5555
5556 /*------------------------------------------------------------------*/
5557 /* */
5558 /* Name - mono_arch_is_inst_imm */
5559 /* */
5560 /* Function - Determine if operand qualifies as an immediate */
5561 /* value. For s390 this is a value -32768-32768 */
5562 /* */
5563 /* Returns - True|False - is [not] immediate value. */
5564 /* */
5565 /*------------------------------------------------------------------*/
5566
5567 gboolean
5568 mono_arch_is_inst_imm (gint64 imm)
5569 {
5570 return s390_is_imm16 (imm);
5571 }
5572
5573 /*========================= End of Function ========================*/
5574
5575 /*------------------------------------------------------------------*/
5576 /* */
5577 /* Name - mono_arch_get_patch_offset */
5578 /* */
5579 /* Function - Dummy entry point until s390x supports aot. */
5580 /* */
5581 /* Returns - Offset for patch. */
5582 /* */
5583 /*------------------------------------------------------------------*/
5584
5585 guint32
5586 mono_arch_get_patch_offset (guint8 *code)
5587 {
5588 return 0;
5589 }
5590
5591 /*========================= End of Function ========================*/
5592
5593 /*------------------------------------------------------------------*/
5594 /* */
5595 /* Name - mono_arch_context_get_int_reg. */
5596 /* */
5597 /* Function - */
5598 /* */
5599 /* Returns - Offset for patch. */
5600 /* */
5601 /*------------------------------------------------------------------*/
5602
5603 gpointer
5604 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5605 {
5606 /* FIXME: implement */
5607 g_assert_not_reached ();
5608 return NULL;
5609 }
5610
5611 /*========================= End of Function ========================*/
5612
5613 /*------------------------------------------------------------------*/
5614 /* */
5615 /* Name - mono_arch_get_this_arg_from_call. */
5616 /* */
5617 /* Function - */
5618 /* */
5619 /*------------------------------------------------------------------*/
5620
5621 gpointer
5622 mono_arch_get_this_arg_from_call (MonoGenericSharingContext *gsctx, MonoMethodSignature *sig, mgreg_t *regs, guint8 *code)
5623 {
5624 MonoLMF *lmf = (MonoLMF *) ((gchar *) regs - sizeof(MonoLMF));
5625
5626 /* FIXME: handle returning a struct */
5627 if (MONO_TYPE_ISSTRUCT (sig->ret))
5628 return (gpointer) lmf->gregs [s390_r3];
5629 return (gpointer) lmf->gregs [s390_r2];
5630 }
5631
5632 /*========================= End of Function ========================*/
5633
5634 /*------------------------------------------------------------------*/
5635 /* */
5636 /* Name - get_delegate_invoke_impl. */
5637 /* */
5638 /* Function - */
5639 /* */
5640 /*------------------------------------------------------------------*/
5641
5642 static gpointer
5643 get_delegate_invoke_impl (gboolean has_target, guint32 param_count, guint32 *code_len, gboolean aot)
5644 {
5645 guint8 *code, *start;
5646
5647 if (has_target) {
5648 int size = 32;
5649
5650 start = code = mono_global_codeman_reserve (size);
5651
5652 /* Replace the this argument with the target */
5653 s390_lg (code, s390_r1, 0, s390_r2, G_STRUCT_OFFSET(MonoDelegate, method_ptr));
5654 s390_lg (code, s390_r2, 0, s390_r2, G_STRUCT_OFFSET(MonoDelegate, target));
5655 s390_br (code, s390_r1);
5656 g_assert ((code - start) <= size);
5657
5658 mono_arch_flush_icache (start, size);
5659 } else {
5660 int size, i;
5661
5662 size = 32 + param_count * 8;
5663 start = code = mono_global_codeman_reserve (size);
5664
5665 s390_lg (code, s390_r1, 0, s390_r2, G_STRUCT_OFFSET(MonoDelegate, method_ptr));
5666 /* slide down the arguments */
5667 for (i = 0; i < param_count; ++i) {
5668 s390_lgr (code, (s390_r2 + i), (s390_r2 + i + 1));
5669 }
5670 s390_br (code, s390_r1);
5671
5672 g_assert ((code - start) <= size);
5673
5674 mono_arch_flush_icache (start, size);
5675 }
5676
5677 if (code_len)
5678 *code_len = code - start;
5679
5680 return start;
5681 }
5682
5683 /*========================= End of Function ========================*/
5684
5685 /*------------------------------------------------------------------*/
5686 /* */
5687 /* Name - mono_arch_get_delegate_invoke_impls. */
5688 /* */
5689 /* Function - */
5690 /* */
5691 /*------------------------------------------------------------------*/
5692
5693 GSList*
5694 mono_arch_get_delegate_invoke_impls (void)
5695 {
5696 GSList *res = NULL;
5697 guint8 *code;
5698 guint32 code_len;
5699 int i;
5700
5701 code = get_delegate_invoke_impl (TRUE, 0, &code_len, TRUE);
5702 res = g_slist_prepend (res, mono_aot_tramp_info_create (g_strdup ("delegate_invoke_impl_has_target"), code, code_len));
5703
5704 for (i = 0; i < MAX_ARCH_DELEGATE_PARAMS; ++i) {
5705 code = get_delegate_invoke_impl (FALSE, i, &code_len, TRUE);
5706 res = g_slist_prepend (res, mono_aot_tramp_info_create (g_strdup_printf ("delegate_invoke_impl_target_%d", i), code, code_len));
5707 }
5708
5709 return res;
5710 }
5711
5712 /*========================= End of Function ========================*/
5713
5714 /*------------------------------------------------------------------*/
5715 /* */
5716 /* Name - mono_arch_get_delegate_invoke_impl. */
5717 /* */
5718 /* Function - */
5719 /* */
5720 /*------------------------------------------------------------------*/
5721
5722 gpointer
5723 mono_arch_get_delegate_invoke_impl (MonoMethodSignature *sig, gboolean has_target)
5724 {
5725 guint8 *code, *start;
5726
5727 /* FIXME: Support more cases */
5728 if (MONO_TYPE_ISSTRUCT (sig->ret))
5729 return NULL;
5730
5731 if (has_target) {
5732 static guint8* cached = NULL;
5733
5734 if (cached)
5735 return cached;
5736
5737 if (mono_aot_only)
5738 start = mono_aot_get_named_code ("delegate_invoke_impl_has_target");
5739 else
5740 start = get_delegate_invoke_impl (TRUE, 0, NULL, FALSE);
5741
5742 mono_memory_barrier ();
5743
5744 cached = start;
5745 } else {
5746 static guint8* cache [MAX_ARCH_DELEGATE_PARAMS + 1] = {NULL};
5747 int i;
5748
5749 if (sig->param_count > MAX_ARCH_DELEGATE_PARAMS)
5750 return NULL;
5751 for (i = 0; i < sig->param_count; ++i)
5752 if (!mono_is_regsize_var (sig->params [i]))
5753 return NULL;
5754
5755
5756 code = cache [sig->param_count];
5757 if (code)
5758 return code;
5759
5760 if (mono_aot_only) {
5761 char *name = g_strdup_printf ("delegate_invoke_impl_target_%d", sig->param_count);
5762 start = mono_aot_get_named_code (name);
5763 g_free (name);
5764 } else {
5765 start = get_delegate_invoke_impl (FALSE, sig->param_count, NULL, FALSE);
5766 }
5767
5768 mono_memory_barrier ();
5769
5770 cache [sig->param_count] = start;
5771 }
5772 return start;
5773 }
5774
5775 /*========================= End of Function ========================*/
5776
5777 /*------------------------------------------------------------------*/
5778 /* */
5779 /* Name - mono_arch_build_imt_thunk. */
5780 /* */
5781 /* Function - */
5782 /* */
5783 /*------------------------------------------------------------------*/
5784
5785 gpointer
5786 mono_arch_build_imt_thunk (MonoVTable *vtable, MonoDomain *domain,
5787 MonoIMTCheckItem **imt_entries, int count,
5788 gpointer fail_tramp)
5789 {
5790 int i;
5791 int size = 0;
5792 guchar *code, *start;
5793
5794 for (i = 0; i < count; ++i) {
5795 MonoIMTCheckItem *item = imt_entries [i];
5796 if (item->is_equals) {
5797 if (item->check_target_idx) {
5798 if (!item->compare_done)
5799 item->chunk_size += CMP_SIZE + JUMP_SIZE;
5800 if (item->has_target_code)
5801 item->chunk_size += BR_SIZE + JUMP_SIZE + LOADCON_SIZE;
5802 else
5803 item->chunk_size += BR_SIZE + JUMP_SIZE + LOADCON_SIZE +
5804 LOAD_SIZE;
5805 } else {
5806 if (fail_tramp) {
5807 item->chunk_size += CMP_SIZE + 2 * BR_SIZE + JUMP_SIZE +
5808 2 * LOADCON_SIZE;
5809 if (!item->has_target_code)
5810 item->chunk_size += LOAD_SIZE;
5811 } else {
5812 item->chunk_size += LOADCON_SIZE + LOAD_SIZE + BR_SIZE;
5813 #if ENABLE_WRONG_METHOD_CHECK
5814 item->chunk_size += CMP_SIZE + JUMP_SIZE;
5815 #endif
5816 }
5817 }
5818 } else {
5819 item->chunk_size += CMP_SIZE + JUMP_SIZE;
5820 imt_entries [item->check_target_idx]->compare_done = TRUE;
5821 }
5822 size += item->chunk_size;
5823 }
5824
5825 if (fail_tramp)
5826 code = mono_method_alloc_generic_virtual_thunk (domain, size);
5827 else
5828 code = mono_domain_code_reserve (domain, size);
5829
5830 start = code;
5831
5832 for (i = 0; i < count; ++i) {
5833 MonoIMTCheckItem *item = imt_entries [i];
5834 item->code_target = (guint8 *) code;
5835 if (item->is_equals) {
5836 if (item->check_target_idx) {
5837 if (!item->compare_done) {
5838 s390_basr (code, s390_r13, s390_r0);
5839 s390_j (code, 6);
5840 s390_llong(code, item->key);
5841 s390_lg (code, s390_r0, 0, s390_r13, 4);
5842 s390_cgr (code, s390_r0, MONO_ARCH_IMT_REG);
5843 }
5844 item->jmp_code = (guint8*) code;
5845 s390_jcl (code, S390_CC_NE, 0);
5846
5847 s390_basr (code, s390_r13, s390_r0);
5848 s390_j (code, 6);
5849 if (item->has_target_code) {
5850 s390_llong(code, item->value.target_code);
5851 s390_lg (code, s390_r1, 0, s390_r13, 4);
5852 } else {
5853 s390_llong(code, (&(vtable->vtable [item->value.vtable_slot])));
5854 s390_lg (code, s390_r1, 0, s390_r13, 4);
5855 s390_lg (code, s390_r1, 0, s390_r1, 0);
5856 }
5857 s390_br (code, s390_r1);
5858 } else {
5859 if (fail_tramp) {
5860 gint64 target;
5861
5862 s390_basr (code, s390_r13, s390_r0);
5863 s390_j (code, 6);
5864 s390_llong(code, item->key);
5865 s390_lg (code, s390_r0, 0, s390_r13, 4);
5866 s390_cgr (code, s390_r0, MONO_ARCH_IMT_REG);
5867 item->jmp_code = (guint8*) code;
5868 s390_jcl (code, S390_CC_NE, 0);
5869 s390_basr (code, s390_r13, s390_r0);
5870 s390_j (code, 6);
5871 if (item->has_target_code) {
5872 s390_llong(code, item->value.target_code);
5873 s390_lg (code, s390_r1, 0, s390_r13, 4);
5874 } else {
5875 g_assert (vtable);
5876 s390_llong(code, (&(vtable->vtable [item->value.vtable_slot])));
5877 s390_lg (code, s390_r1, 0, s390_r13, 4);
5878 s390_lg (code, s390_r1, 0, s390_r1, 0);
5879 }
5880 s390_br (code, s390_r1);
5881 target = S390_RELATIVE(item->jmp_code, code);
5882 s390_patch_rel(item->jmp_code+2, target);
5883 s390_basr (code, s390_r13, s390_r0);
5884 s390_j (code, 6);
5885 s390_llong(code, fail_tramp);
5886 s390_lg (code, s390_r1, 0, s390_r13, 4);
5887 s390_br (code, s390_r1);
5888 item->jmp_code = NULL;
5889 } else {
5890 /* enable the commented code to assert on wrong method */
5891 #if ENABLE_WRONG_METHOD_CHECK
5892 g_assert_not_reached ();
5893 #endif
5894 s390_basr (code, s390_r13, s390_r0);
5895 s390_j (code, 6);
5896 s390_llong(code, (&(vtable->vtable [item->value.vtable_slot])));
5897 s390_lg (code, s390_r1, 0, s390_r13, 4);
5898 s390_lg (code, s390_r1, 0, s390_r1, 0);
5899 s390_br (code, s390_r1);
5900 #if ENABLE_WRONG_METHOD_CHECK
5901 g_assert_not_reached ();
5902 #endif
5903 }
5904 }
5905 } else {
5906 s390_basr (code, s390_r13, s390_r0);
5907 s390_j (code, 6);
5908 s390_llong(code, item->key);
5909 s390_lg (code, s390_r0, 0, s390_r13, 4);
5910 s390_cgr (code, MONO_ARCH_IMT_REG, s390_r0);
5911 item->jmp_code = (guint8 *) code;
5912 s390_jcl (code, S390_CC_GE, 0);
5913 }
5914 }
5915 /* patch the branches to get to the target items */
5916 for (i = 0; i < count; ++i) {
5917 MonoIMTCheckItem *item = imt_entries [i];
5918 if (item->jmp_code) {
5919 if (item->check_target_idx) {
5920 gint64 offset;
5921 offset = S390_RELATIVE(imt_entries [item->check_target_idx]->code_target,
5922 item->jmp_code);
5923 s390_patch_rel ((guchar *) item->jmp_code + 2, (guint64) offset);
5924 }
5925 }
5926 }
5927
5928 mono_arch_flush_icache ((guint8*)start, (code - start));
5929
5930 if (!fail_tramp)
5931 mono_stats.imt_thunks_size += (code - start);
5932
5933 g_assert (code - start <= size);
5934
5935 return (start);
5936 }
5937
5938 /*========================= End of Function ========================*/
5939
5940 /*------------------------------------------------------------------*/
5941 /* */
5942 /* Name - mono_arch_find_imt_method. */
5943 /* */
5944 /* Function - Get the method address from MONO_ARCH_IMT_REG */
5945 /* found in the save area. */
5946 /* */
5947 /*------------------------------------------------------------------*/
5948
5949 MonoMethod*
5950 mono_arch_find_imt_method (mgreg_t *regs, guint8 *code)
5951 {
5952 MonoLMF *lmf = (MonoLMF *) ((gchar *) regs - sizeof(MonoLMF));
5953
5954 return ((MonoMethod *) lmf->gregs [MONO_ARCH_IMT_REG]);
5955 }
5956
5957 /*========================= End of Function ========================*/
5958
5959 /*------------------------------------------------------------------*/
5960 /* */
5961 /* Name - mono_arch_find_this_argument. */
5962 /* */
5963 /* Function - */
5964 /* */
5965 /*------------------------------------------------------------------*/
5966
5967 MonoObject *
5968 mono_arch_find_this_argument (mgreg_t *regs, MonoMethod *method,
5969 MonoGenericSharingContext *gsctx)
5970 {
5971 return mono_arch_get_this_arg_from_call (gsctx, mono_method_signature (method), regs, NULL);
5972 }
5973
5974 /*========================= End of Function ========================*/
ppc64 and Haiku ports