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if we're intentionally using power-of-two sizing for chunks, don't add the header...
[mono-project/dkf.git] / mono / mini / mini-s390.c
blob67e502633e866cd265014dc58237022b792431f1
1 /*------------------------------------------------------------------*/
2 /* */
3 /* Name - mini-s390.c */
4 /* */
5 /* Function - S/390 backend for the Mono code generator. */
6 /* */
7 /* Name - Neale Ferguson (Neale.Ferguson@SoftwareAG-usa.com) */
8 /* */
9 /* Date - January, 2004 */
10 /* */
11 /* Derivation - From mini-x86 & mini-ppc by - */
12 /* Paolo Molaro (lupus@ximian.com) */
13 /* Dietmar Maurer (dietmar@ximian.com) */
14 /* */
15 /*------------------------------------------------------------------*/
16
17 /*------------------------------------------------------------------*/
18 /* D e f i n e s */
19 /*------------------------------------------------------------------*/
20
21 #define EMIT_COND_BRANCH(ins,cond) \
22 { \
23 if (ins->inst_true_bb->native_offset) { \
24 int displace; \
25 displace = ((cfg->native_code + \
26 ins->inst_true_bb->native_offset) - code) / 2; \
27 if (s390_is_imm16(displace)) { \
28 s390_brc (code, cond, displace); \
29 } else { \
30 s390_jcl (code, cond, displace); \
31 } \
32 } else { \
33 mono_add_patch_info (cfg, code - cfg->native_code, \
34 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
35 s390_jcl (code, cond, 0); \
36 } \
37 }
38
39 #define EMIT_UNCOND_BRANCH(ins) \
40 { \
41 if (ins->inst_target_bb->native_offset) { \
42 int displace; \
43 displace = ((cfg->native_code + \
44 ins->inst_target_bb->native_offset) - code) / 2; \
45 if (s390_is_imm16(displace)) { \
46 s390_brc (code, S390_CC_UN, displace); \
47 } else { \
48 s390_jcl (code, S390_CC_UN, displace); \
49 } \
50 } else { \
51 mono_add_patch_info (cfg, code - cfg->native_code, \
52 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
53 s390_jcl (code, S390_CC_UN, 0); \
54 } \
55 }
56
57 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
58 do { \
59 mono_add_patch_info (cfg, code - cfg->native_code, \
60 MONO_PATCH_INFO_EXC, exc_name); \
61 s390_jcl (code, cond, 0); \
62 } while (0);
63
64 #define CHECK_SRCDST_COM \
65 if (ins->dreg == ins->sreg2) { \
66 src2 = ins->sreg1; \
67 } else { \
68 src2 = ins->sreg2; \
69 if (ins->dreg != ins->sreg1) { \
70 s390_lr (code, ins->dreg, ins->sreg1); \
71 } \
72 }
73
74 #define CHECK_SRCDST_NCOM \
75 if (ins->dreg == ins->sreg2) { \
76 src2 = s390_r13; \
77 s390_lr (code, s390_r13, ins->sreg2); \
78 } else { \
79 src2 = ins->sreg2; \
80 } \
81 if (ins->dreg != ins->sreg1) { \
82 s390_lr (code, ins->dreg, ins->sreg1); \
83 }
84
85 #define CHECK_SRCDST_COM_F \
86 if (ins->dreg == ins->sreg2) { \
87 src2 = ins->sreg1; \
88 } else { \
89 src2 = ins->sreg2; \
90 if (ins->dreg != ins->sreg1) { \
91 s390_ldr (code, ins->dreg, ins->sreg1); \
92 } \
93 }
94
95 #define CHECK_SRCDST_NCOM_F \
96 if (ins->dreg == ins->sreg2) { \
97 src2 = s390_f15; \
98 s390_ldr (code, s390_r13, ins->sreg2); \
99 } else { \
100 src2 = ins->sreg2; \
101 } \
102 if (ins->dreg != ins->sreg1) { \
103 s390_ldr (code, ins->dreg, ins->sreg1); \
104 }
105
106 #define MONO_EMIT_NEW_MOVE(cfg,dest,offset,src,imm,size) do { \
107 MonoInst *inst; \
108 int tmpr = 0; \
109 int sReg, dReg; \
110 MONO_INST_NEW (cfg, inst, OP_NOP); \
111 if (size > 256) { \
112 inst->dreg = dest; \
113 inst->inst_offset = offset; \
114 inst->sreg1 = src; \
115 inst->inst_imm = imm; \
116 } else { \
117 if (s390_is_uimm12(offset)) { \
118 inst->dreg = dest; \
119 inst->inst_offset = offset; \
120 } else { \
121 dReg = mono_alloc_preg (cfg); \
122 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
123 dReg, dest, offset); \
124 inst->dreg = dReg; \
125 inst->inst_offset = 0; \
126 } \
127 if (s390_is_uimm12(imm)) { \
128 inst->sreg1 = src; \
129 inst->inst_imm = imm; \
130 } else { \
131 sReg = mono_alloc_preg (cfg); \
132 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
133 sReg, src, imm); \
134 inst->sreg1 = sReg; \
135 inst->inst_imm = 0; \
136 } \
137 } \
138 inst->opcode = OP_S390_MOVE; \
139 inst->backend.size = size; \
140 MONO_ADD_INS (cfg->cbb, inst); \
141 } while (0)
142
143 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
144 int reg = mono_alloc_preg (cfg); \
145 switch (size) { \
146 case 0: \
147 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
148 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
149 break; \
150 case 1: \
151 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
152 reg, sr, so); \
153 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
154 break; \
155 case 2: \
156 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
157 reg, sr, so); \
158 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
159 break; \
160 case 4: \
161 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
162 reg, sr, so); \
163 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
164 break; \
165 case 8: \
166 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
167 reg, sr, so); \
168 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
169 reg = mono_alloc_preg (cfg); \
170 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
171 reg, sr, so + sizeof (guint32)); \
172 mono_call_inst_add_outarg_reg(cfg, call, reg, dr + 1, FALSE); \
173 break; \
174 } \
175 } while (0)
176
177 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
178 int tmpr; \
179 switch (size) { \
180 case 0: \
181 tmpr = mono_alloc_preg (cfg); \
182 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
183 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
184 dr, dx, tmpr); \
185 break; \
186 case 1: \
187 tmpr = mono_alloc_preg (cfg); \
188 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
189 tmpr, sr, so); \
190 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
191 dr, dx, tmpr); \
192 break; \
193 case 2: \
194 tmpr = mono_alloc_preg (cfg); \
195 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
196 tmpr, sr, so); \
197 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
198 dr, dx, tmpr); \
199 break; \
200 case 4: \
201 case 8: \
202 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
203 break; \
204 } \
205 } while (0)
206
207 #undef DEBUG
208 #define DEBUG(a) if (cfg->verbose_level > 1) a
209
210 #define MAX_EXC 16
211
212 #define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
213
214 #define MAX (a, b) ((a) > (b) ? (a) : (b))
215
216 /*========================= End of Defines =========================*/
217
218 /*------------------------------------------------------------------*/
219 /* I n c l u d e s */
220 /*------------------------------------------------------------------*/
221
222 #include "mini.h"
223 #include <string.h>
224
225 #include <mono/metadata/appdomain.h>
226 #include <mono/metadata/debug-helpers.h>
227 #include <mono/metadata/profiler-private.h>
228 #include <mono/utils/mono-math.h>
229
230 #include "mini-s390.h"
231 #include "cpu-s390.h"
232 #include "jit-icalls.h"
233 #include "ir-emit.h"
234
235 /*========================= End of Includes ========================*/
236
237 /*------------------------------------------------------------------*/
238 /* T y p e d e f s */
239 /*------------------------------------------------------------------*/
240
241 typedef struct {
242 guint stack_size,
243 local_size,
244 code_size,
245 parm_size,
246 offset,
247 offStruct,
248 retStruct;
249 } size_data;
250
251 /*------------------------------------------------------------------*/
252 /* Used by the instrument_emit_epilog */
253 /*------------------------------------------------------------------*/
254
255 enum {
256 SAVE_NONE,
257 SAVE_STRUCT,
258 SAVE_ONE,
259 SAVE_TWO,
260 SAVE_R4,
261 SAVE_R8
262 };
263
264 typedef struct InstList InstList;
265
266 struct InstList {
267 InstList *prev;
268 InstList *next;
269 MonoInst *data;
270 };
271
272 typedef enum {
273 RegTypeGeneral,
274 RegTypeBase,
275 RegTypeFP,
276 RegTypeFPR4,
277 RegTypeStructByVal,
278 RegTypeStructByValInFP,
279 RegTypeStructByAddr
280 } ArgStorage;
281
282 typedef struct {
283 gint32 offset; /* offset from caller's stack */
284 gint32 offparm; /* offset from callee's stack */
285 guint16 vtsize; /* in param area */
286 guint8 reg;
287 ArgStorage regtype; /* See RegType* */
288 guint32 size; /* Size of structure used by RegTypeStructByVal */
289 } ArgInfo;
290
291 typedef struct {
292 int nargs;
293 int lastgr;
294 guint32 stack_usage;
295 guint32 struct_ret;
296 ArgInfo ret;
297 ArgInfo sigCookie;
298 size_data sz;
299 ArgInfo args [1];
300 } CallInfo;
301
302 typedef struct {
303 gint32 gr[5]; /* R2-R6 */
304 gdouble fp[3]; /* F0-F2 */
305 } __attribute__ ((packed)) RegParm;
306
307 /*========================= End of Typedefs ========================*/
308
309 /*------------------------------------------------------------------*/
310 /* P r o t o t y p e s */
311 /*------------------------------------------------------------------*/
312
313 static void indent (int);
314 static guint8 * backUpStackPtr(MonoCompile *, guint8 *, gint);
315 static void decodeParm (MonoType *, void *, int);
316 static void enter_method (MonoMethod *, RegParm *, char *);
317 static void leave_method (MonoMethod *, ...);
318 static gboolean is_regsize_var (MonoType *);
319 static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
320 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
321 static inline void add_float (guint *, size_data *, ArgInfo *);
322 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
323 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
324 gpointer mono_arch_get_lmf_addr (void);
325 static guint8 * emit_load_volatile_registers(guint8 *, MonoCompile *);
326 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *);
327
328 /*========================= End of Prototypes ======================*/
329
330 /*------------------------------------------------------------------*/
331 /* G l o b a l V a r i a b l e s */
332 /*------------------------------------------------------------------*/
333
334 int mono_exc_esp_offset = 0;
335
336 static int indent_level = 0;
337
338 static gboolean tls_offset_inited = FALSE;
339
340 static int appdomain_tls_offset = -1,
341 thread_tls_offset = -1;
342
343 pthread_key_t lmf_addr_key;
344
345 gboolean lmf_addr_key_inited = FALSE;
346
347 #if 0
348
349 extern __thread MonoDomain *tls_appdomain;
350 extern __thread MonoThread *tls_current_object;
351 extern __thread gpointer mono_lmf_addr;
352
353 #endif
354
355 /*====================== End of Global Variables ===================*/
356
357 /*------------------------------------------------------------------*/
358 /* */
359 /* Name - mono_arch_regname */
360 /* */
361 /* Function - Returns the name of the register specified by */
362 /* the input parameter. */
363 /* */
364 /*------------------------------------------------------------------*/
365
366 const char*
367 mono_arch_regname (int reg) {
368 static const char * rnames[] = {
369 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
370 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
371 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
372 "s390_r15"
373 };
374
375 if (reg >= 0 && reg < 16)
376 return rnames [reg];
377 else
378 return "unknown";
379 }
380
381 /*========================= End of Function ========================*/
382
383 /*------------------------------------------------------------------*/
384 /* */
385 /* Name - mono_arch_fregname */
386 /* */
387 /* Function - Returns the name of the register specified by */
388 /* the input parameter. */
389 /* */
390 /*------------------------------------------------------------------*/
391
392 const char*
393 mono_arch_fregname (int reg) {
394 static const char * rnames[] = {
395 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
396 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
397 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
398 "s390_f15"
399 };
400
401 if (reg >= 0 && reg < 16)
402 return rnames [reg];
403 else
404 return "unknown";
405 }
406
407 /*========================= End of Function ========================*/
408
409 /*------------------------------------------------------------------*/
410 /* */
411 /* Name - arch_get_argument_info */
412 /* */
413 /* Function - Gathers information on parameters such as size, */
414 /* alignment, and padding. arg_info should be large */
415 /* enough to hold param_count + 1 entries. */
416 /* */
417 /* Parameters - @csig - Method signature */
418 /* @param_count - No. of parameters to consider */
419 /* @arg_info - An array to store the result info */
420 /* */
421 /* Returns - Size of the activation frame */
422 /* */
423 /*------------------------------------------------------------------*/
424
425 int
426 mono_arch_get_argument_info (MonoMethodSignature *csig,
427 int param_count,
428 MonoJitArgumentInfo *arg_info)
429 {
430 int k, frame_size = 0;
431 int size, align, pad;
432 int offset = 8;
433
434 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
435 frame_size += sizeof (gpointer);
436 offset += 4;
437 }
438
439 arg_info [0].offset = offset;
440
441 if (csig->hasthis) {
442 frame_size += sizeof (gpointer);
443 offset += 4;
444 }
445
446 arg_info [0].size = frame_size;
447
448 for (k = 0; k < param_count; k++) {
449
450 if (csig->pinvoke)
451 size = mono_type_native_stack_size (csig->params [k], &align);
452 else
453 size = mini_type_stack_size (NULL, csig->params [k], &align);
454
455 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
456 arg_info [k].pad = pad;
457 frame_size += size;
458 arg_info [k + 1].pad = 0;
459 arg_info [k + 1].size = size;
460 offset += pad;
461 arg_info [k + 1].offset = offset;
462 offset += size;
463 }
464
465 align = MONO_ARCH_FRAME_ALIGNMENT;
466 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
467 arg_info [k].pad = pad;
468
469 return frame_size;
470 }
471
472 /*========================= End of Function ========================*/
473
474 /*------------------------------------------------------------------*/
475 /* */
476 /* Name - retFitsInReg. */
477 /* */
478 /* Function - Determines if a value can be returned in one or */
479 /* two registers. */
480 /* */
481 /*------------------------------------------------------------------*/
482
483 static inline gboolean
484 retFitsInReg(guint32 size)
485 {
486 switch (size) {
487 case 0:
488 case 1:
489 case 2:
490 case 4:
491 case 8:
492 return (TRUE);
493 break;
494 default:
495 return (FALSE);
496 }
497 }
498
499 /*========================= End of Function ========================*/
500
501 /*------------------------------------------------------------------*/
502 /* */
503 /* Name - backStackPtr. */
504 /* */
505 /* Function - Restore Stack Pointer to previous frame. */
506 /* */
507 /*------------------------------------------------------------------*/
508
509 static inline guint8 *
510 backUpStackPtr(MonoCompile *cfg, guint8 *code, gint framePtr)
511 {
512 int stackSize = cfg->stack_usage;
513
514 if (s390_is_uimm16 (cfg->stack_usage)) {
515 s390_ahi (code, framePtr, cfg->stack_usage);
516 } else {
517 while (stackSize > 32767) {
518 s390_ahi (code, framePtr, 32767);
519 stackSize -= 32767;
520 }
521 s390_ahi (code, framePtr, stackSize);
522 }
523 return (code);
524 }
525
526 /*========================= End of Function ========================*/
527
528 /*------------------------------------------------------------------*/
529 /* */
530 /* Name - indent */
531 /* */
532 /* Function - Perform nice indenting to current level */
533 /* */
534 /*------------------------------------------------------------------*/
535
536 static void
537 indent (int diff) {
538 int v;
539 if (diff < 0)
540 indent_level += diff;
541 v = indent_level;
542 printf("[%3d] ",v);
543 while (v-- > 0) {
544 printf (". ");
545 }
546 if (diff > 0)
547 indent_level += diff;
548 }
549
550 /*========================= End of Function ========================*/
551
552 /*------------------------------------------------------------------*/
553 /* */
554 /* Name - decodeParm */
555 /* */
556 /* Function - Decode a parameter for the trace. */
557 /* */
558 /*------------------------------------------------------------------*/
559
560 static void
561 decodeParm(MonoType *type, void *curParm, int size)
562 {
563 guint32 simpleType;
564
565 if (type->byref) {
566 printf("[BYREF:%p], ", *((char **) curParm));
567 } else {
568 simpleType = mono_type_get_underlying_type(type)->type;
569 enum_parmtype:
570 switch (simpleType) {
571 case MONO_TYPE_I :
572 printf ("[INTPTR:%p], ", *((int **) curParm));
573 break;
574 case MONO_TYPE_U :
575 printf ("[UINTPTR:%p], ", *((int **) curParm));
576 break;
577 case MONO_TYPE_BOOLEAN :
578 printf ("[BOOL:%d], ", *((int *) curParm));
579 break;
580 case MONO_TYPE_CHAR :
581 printf ("[CHAR:%c], ", *((int *) curParm));
582 break;
583 case MONO_TYPE_I1 :
584 printf ("[INT1:%d], ", *((int *) curParm));
585 break;
586 case MONO_TYPE_I2 :
587 printf ("[INT2:%d], ", *((int *) curParm));
588 break;
589 case MONO_TYPE_I4 :
590 printf ("[INT4:%d], ", *((int *) curParm));
591 break;
592 case MONO_TYPE_U1 :
593 printf ("[UINT1:%u], ", *((unsigned int *) curParm));
594 break;
595 case MONO_TYPE_U2 :
596 printf ("[UINT2:%u], ", *((guint16 *) curParm));
597 break;
598 case MONO_TYPE_U4 :
599 printf ("[UINT4:%u], ", *((guint32 *) curParm));
600 break;
601 case MONO_TYPE_U8 :
602 printf ("[UINT8:%llu], ", *((guint64 *) curParm));
603 break;
604 case MONO_TYPE_STRING : {
605 MonoString *s = *((MonoString **) curParm);
606 if (s) {
607 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
608 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
609 } else {
610 printf("[STRING:null], ");
611 }
612 break;
613 }
614 case MONO_TYPE_CLASS :
615 case MONO_TYPE_OBJECT : {
616 MonoObject *obj = *((MonoObject **) curParm);
617 MonoClass *class;
618 if ((obj) && (obj->vtable)) {
619 printf("[CLASS/OBJ:");
620 class = obj->vtable->klass;
621 printf("%p [%p] ",obj,curParm);
622 // if (class == mono_defaults.string_class) {
623 // printf("[STRING:%p:%s]",
624 // *obj, mono_string_to_utf8 (obj));
625 // } else if (class == mono_defaults.int32_class) {
626 // printf("[INT32:%p:%d]",
627 // obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
628 // } else
629 // printf("[%s.%s:%p]",
630 // class->name_space, class->name, obj);
631 printf("], ");
632 } else {
633 printf("[OBJECT:null], ");
634 }
635 break;
636 }
637 case MONO_TYPE_PTR :
638 printf("[PTR:%p], ", *((gpointer **) (curParm)));
639 break;
640 case MONO_TYPE_FNPTR :
641 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
642 break;
643 case MONO_TYPE_ARRAY :
644 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
645 break;
646 case MONO_TYPE_SZARRAY :
647 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
648 break;
649 case MONO_TYPE_I8 :
650 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
651 break;
652 case MONO_TYPE_R4 :
653 printf("[FLOAT4:%g], ", *((double *) (curParm)));
654 break;
655 case MONO_TYPE_R8 :
656 printf("[FLOAT8:%g], ", *((double *) (curParm)));
657 break;
658 case MONO_TYPE_VALUETYPE : {
659 int i;
660 MonoMarshalType *info;
661
662 if (type->data.klass->enumtype) {
663 simpleType = mono_class_enum_basetype (type->data.klass)->type;
664 printf("{VALUETYPE} - ");
665 goto enum_parmtype;
666 }
667
668 info = mono_marshal_load_type_info (type->data.klass);
669
670 if ((info->native_size == sizeof(float)) &&
671 (info->num_fields == 1) &&
672 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
673 printf("[FLOAT4:%f], ", *((float *) (curParm)));
674 break;
675 }
676
677 if ((info->native_size == sizeof(double)) &&
678 (info->num_fields == 1) &&
679 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
680 printf("[FLOAT8:%g], ", *((double *) (curParm)));
681 break;
682 }
683
684 printf("[VALUETYPE:");
685 for (i = 0; i < size; i++)
686 printf("%02x,", *((guint8 *)curParm+i));
687 printf("]");
688 break;
689 }
690 case MONO_TYPE_TYPEDBYREF: {
691 int i;
692 printf("[TYPEDBYREF:");
693 for (i = 0; i < size; i++)
694 printf("%02x,", *((guint8 *)curParm+i));
695 printf("]");
696 break;
697 }
698 default :
699 printf("[?? - %d], ",simpleType);
700 }
701 }
702 }
703
704 /*========================= End of Function ========================*/
705
706 //static int lc = 0;
707
708 /*------------------------------------------------------------------*/
709 /* */
710 /* Name - enter_method */
711 /* */
712 /* Function - Perform tracing of the entry to the current */
713 /* method. */
714 /* */
715 /*------------------------------------------------------------------*/
716
717 static void
718 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
719 {
720 int i, oParm = 0, iParm = 0;
721 MonoObject *obj;
722 MonoMethodSignature *sig;
723 char *fname;
724 guint32 ip;
725 CallInfo *cinfo;
726 ArgInfo *ainfo;
727 void *curParm;
728
729 fname = mono_method_full_name (method, TRUE);
730 indent (1);
731 printf ("ENTER: %s(", fname);
732 g_free (fname);
733
734 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
735 printf (") ip: %p sp: %p - ", (gpointer) ip, sp);
736
737 if (rParm == NULL)
738 return;
739
740 sig = mono_method_signature (method);
741
742 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
743
744 if (cinfo->struct_ret) {
745 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
746 iParm = 1;
747 }
748
749 if (sig->hasthis) {
750 gpointer *this = (gpointer *) rParm->gr[iParm];
751 obj = (MonoObject *) this;
752 if (method->klass->valuetype) {
753 if (obj) {
754 printf("this:[value:%p:%08x], ",
755 this, *((guint32 *)(this+sizeof(MonoObject))));
756 } else
757 printf ("this:[NULL], ");
758 } else {
759 if (obj) {
760 // class = obj->vtable->klass;
761 // if (class == mono_defaults.string_class) {
762 // printf ("this:[STRING:%p:%s], ",
763 // obj, mono_string_to_utf8 ((MonoString *)obj));
764 // } else {
765 // printf ("this:%p[%s.%s], ",
766 // obj, class->name_space, class->name);
767 // }
768 printf("this:%p, ",obj);
769 } else
770 printf ("this:NULL, ");
771 }
772 oParm++;
773 }
774
775 for (i = 0; i < sig->param_count; ++i) {
776 ainfo = &cinfo->args[i + oParm];
777 switch (ainfo->regtype) {
778 case RegTypeGeneral :
779 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
780 break;
781 case RegTypeFP :
782 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
783 break;
784 case RegTypeBase :
785 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
786 break;
787 case RegTypeStructByVal :
788 if (ainfo->reg != STK_BASE)
789 curParm = &(rParm->gr[ainfo->reg-2]);
790 else
791 curParm = sp+ainfo->offset;
792
793 if (retFitsInReg (ainfo->vtsize))
794 decodeParm(sig->params[i],
795 curParm,
796 ainfo->size);
797 else
798 decodeParm(sig->params[i],
799 *((char **) curParm),
800 ainfo->vtsize);
801 break;
802 case RegTypeStructByAddr :
803 if (ainfo->reg != STK_BASE)
804 curParm = &(rParm->gr[ainfo->reg-2]);
805 else
806 curParm = sp+ainfo->offset;
807
808 decodeParm(sig->params[i],
809 *((char **) curParm),
810 ainfo->vtsize);
811 break;
812
813 default :
814 printf("???, ");
815 }
816 }
817 printf("\n");
818 g_free(cinfo);
819 }
820
821 /*========================= End of Function ========================*/
822
823 /*------------------------------------------------------------------*/
824 /* */
825 /* Name - leave_method */
826 /* */
827 /* Function - */
828 /* */
829 /*------------------------------------------------------------------*/
830
831 static void
832 leave_method (MonoMethod *method, ...)
833 {
834 MonoType *type;
835 char *fname;
836 guint32 ip;
837 va_list ap;
838
839 va_start(ap, method);
840
841 fname = mono_method_full_name (method, TRUE);
842 indent (-1);
843 printf ("LEAVE: %s", fname);
844 g_free (fname);
845
846 type = mono_method_signature (method)->ret;
847
848 handle_enum:
849 switch (type->type) {
850 case MONO_TYPE_VOID:
851 break;
852 case MONO_TYPE_BOOLEAN: {
853 int val = va_arg (ap, int);
854 if (val)
855 printf ("[TRUE:%d]", val);
856 else
857 printf ("[FALSE]");
858
859 break;
860 }
861 case MONO_TYPE_CHAR: {
862 int val = va_arg (ap, int);
863 printf ("[CHAR:%d]", val);
864 break;
865 }
866 case MONO_TYPE_I1: {
867 int val = va_arg (ap, int);
868 printf ("[INT1:%d]", val);
869 break;
870 }
871 case MONO_TYPE_U1: {
872 int val = va_arg (ap, int);
873 printf ("[UINT1:%d]", val);
874 break;
875 }
876 case MONO_TYPE_I2: {
877 int val = va_arg (ap, int);
878 printf ("[INT2:%d]", val);
879 break;
880 }
881 case MONO_TYPE_U2: {
882 int val = va_arg (ap, int);
883 printf ("[UINT2:%d]", val);
884 break;
885 }
886 case MONO_TYPE_I4: {
887 int val = va_arg (ap, int);
888 printf ("[INT4:%d]", val);
889 break;
890 }
891 case MONO_TYPE_U4: {
892 int val = va_arg (ap, int);
893 printf ("[UINT4:%d]", val);
894 break;
895 }
896 case MONO_TYPE_I: {
897 int val = va_arg (ap, int);
898 printf ("[INT:%d]", val);
899 printf("]");
900 break;
901 }
902 case MONO_TYPE_U: {
903 int val = va_arg (ap, int);
904 printf ("[UINT:%d]", val);
905 printf("]");
906 break;
907 }
908 case MONO_TYPE_STRING: {
909 MonoString *s = va_arg (ap, MonoString *);
910 ;
911 if (s) {
912 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
913 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
914 } else
915 printf ("[STRING:null], ");
916 break;
917 }
918 case MONO_TYPE_CLASS:
919 case MONO_TYPE_OBJECT: {
920 MonoObject *o = va_arg (ap, MonoObject *);
921
922 // if ((o) && (o->vtable)) {
923 // if (o->vtable->klass == mono_defaults.boolean_class) {
924 // printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
925 // } else if (o->vtable->klass == mono_defaults.int32_class) {
926 // printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
927 // } else if (o->vtable->klass == mono_defaults.int64_class) {
928 // printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
929 // } else
930 // printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
931 // } else
932 printf ("[OBJECT:%p]", o);
933
934 break;
935 }
936 case MONO_TYPE_PTR:
937 case MONO_TYPE_FNPTR:
938 case MONO_TYPE_ARRAY:
939 case MONO_TYPE_SZARRAY: {
940 gpointer p = va_arg (ap, gpointer);
941 printf ("[result=%p]", p);
942 break;
943 }
944 case MONO_TYPE_I8: {
945 gint64 l = va_arg (ap, gint64);
946 printf ("[LONG:%lld]", l);
947 break;
948 }
949 case MONO_TYPE_U8: {
950 guint64 l = va_arg (ap, guint64);
951 printf ("[ULONG:%llu]", l);
952 break;
953 }
954 case MONO_TYPE_R4: {
955 double f;
956 f = va_arg (ap, double);
957 printf ("[FLOAT4:%g]\n", f);
958 break;
959 }
960 case MONO_TYPE_R8: {
961 double f = va_arg (ap, double);
962 printf ("[FLOAT8:%g]\n", f);
963 break;
964 }
965 case MONO_TYPE_VALUETYPE: {
966 MonoMarshalType *info;
967 if (type->data.klass->enumtype) {
968 type = mono_class_enum_basetype (type->data.klass);
969 goto handle_enum;
970 } else {
971 guint8 *p = va_arg (ap, gpointer);
972 int j, size, align;
973
974 info = mono_marshal_load_type_info (type->data.klass);
975
976 if ((info->native_size == sizeof(float)) &&
977 (info->num_fields == 1) &&
978 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
979 double f = va_arg (ap, double);
980 printf("[FLOAT4:%g]\n", (double) f);
981 break;
982 }
983
984 if ((info->native_size == sizeof(double)) &&
985 (info->num_fields == 1) &&
986 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
987 double f = va_arg (ap, double);
988 printf("[FLOAT8:%g]\n", f);
989 break;
990 }
991
992 size = mono_type_size (type, &align);
993 switch (size) {
994 case 1:
995 case 2:
996 case 4:
997 case 8:
998 printf ("[");
999 for (j = 0; p && j < size; j++)
1000 printf ("%02x,", p [j]);
1001 printf ("]\n");
1002 break;
1003 default:
1004 printf ("[VALUERET]\n");
1005 }
1006 }
1007 break;
1008 }
1009 case MONO_TYPE_TYPEDBYREF: {
1010 guint8 *p = va_arg (ap, gpointer);
1011 int j, size, align;
1012 size = mono_type_size (type, &align);
1013 switch (size) {
1014 case 1:
1015 case 2:
1016 case 4:
1017 case 8:
1018 printf ("[");
1019 for (j = 0; p && j < size; j++)
1020 printf ("%02x,", p [j]);
1021 printf ("]\n");
1022 break;
1023 default:
1024 printf ("[TYPEDBYREF]\n");
1025 }
1026 }
1027 break;
1028 default:
1029 printf ("(unknown return type %x)",
1030 mono_method_signature (method)->ret->type);
1031 }
1032
1033 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
1034 printf (" ip: %p\n", (gpointer) ip);
1035 }
1036
1037 /*========================= End of Function ========================*/
1038
1039 /*------------------------------------------------------------------*/
1040 /* */
1041 /* Name - mono_arch_cpu_init */
1042 /* */
1043 /* Function - Perform CPU specific initialization to execute */
1044 /* managed code. */
1045 /* */
1046 /*------------------------------------------------------------------*/
1047
1048 void
1049 mono_arch_cpu_init (void)
1050 {
1051 guint mode = 1;
1052
1053 /*--------------------------------------*/
1054 /* Set default rounding mode for FP */
1055 /*--------------------------------------*/
1056 __asm__ ("SRNM\t%0\n\t"
1057 : : "m" (mode));
1058 }
1059
1060 /*========================= End of Function ========================*/
1061
1062
1063 /*
1064 * Initialize architecture specific code.
1065 */
1066 void
1067 mono_arch_init (void)
1068 {
1069 }
1070
1071 /*
1072 * Cleanup architecture specific code.
1073 */
1074 void
1075 mono_arch_cleanup (void)
1076 {
1077 }
1078
1079 /*------------------------------------------------------------------*/
1080 /* */
1081 /* Name - mono_arch_cpu_optimizazions */
1082 /* */
1083 /* Function - Returns the optimizations supported on this CPU */
1084 /* */
1085 /*------------------------------------------------------------------*/
1086
1087 guint32
1088 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1089 {
1090 guint32 opts = 0;
1091
1092 /*----------------------------------------------------------*/
1093 /* no s390-specific optimizations yet */
1094 /*----------------------------------------------------------*/
1095 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1096 // *exclude_mask = MONO_OPT_INLINE;
1097 return opts;
1098 }
1099
1100 /*========================= End of Function ========================*/
1101
1102 /*------------------------------------------------------------------*/
1103 /* */
1104 /* Name - */
1105 /* */
1106 /* Function - */
1107 /* */
1108 /*------------------------------------------------------------------*/
1109
1110 static gboolean
1111 is_regsize_var (MonoType *t) {
1112 if (t->byref)
1113 return TRUE;
1114 switch (mono_type_get_underlying_type (t)->type) {
1115 case MONO_TYPE_I4:
1116 case MONO_TYPE_U4:
1117 case MONO_TYPE_I:
1118 case MONO_TYPE_U:
1119 case MONO_TYPE_PTR:
1120 case MONO_TYPE_FNPTR:
1121 return TRUE;
1122 case MONO_TYPE_OBJECT:
1123 case MONO_TYPE_STRING:
1124 case MONO_TYPE_CLASS:
1125 case MONO_TYPE_SZARRAY:
1126 case MONO_TYPE_ARRAY:
1127 return FALSE;
1128 case MONO_TYPE_VALUETYPE:
1129 if (t->data.klass->enumtype)
1130 return is_regsize_var (mono_class_enum_basetype (t->data.klass));
1131 return FALSE;
1132 }
1133 return FALSE;
1134 }
1135
1136 /*========================= End of Function ========================*/
1137
1138 /*------------------------------------------------------------------*/
1139 /* */
1140 /* Name - mono_arch_get_allocatable_int_vars */
1141 /* */
1142 /* Function - */
1143 /* */
1144 /*------------------------------------------------------------------*/
1145
1146 GList *
1147 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1148 {
1149 GList *vars = NULL;
1150 int i;
1151
1152 for (i = 0; i < cfg->num_varinfo; i++) {
1153 MonoInst *ins = cfg->varinfo [i];
1154 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1155
1156 /* unused vars */
1157 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1158 continue;
1159
1160 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1161 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1162 continue;
1163
1164 /* we can only allocate 32 bit values */
1165 if (is_regsize_var (ins->inst_vtype)) {
1166 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1167 g_assert (i == vmv->idx);
1168 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1169 }
1170 }
1171
1172 return vars;
1173 }
1174
1175 /*========================= End of Function ========================*/
1176
1177 /*------------------------------------------------------------------*/
1178 /* */
1179 /* Name - mono_arch_global_int_regs */
1180 /* */
1181 /* Function - Return a list of usable integer registers. */
1182 /* */
1183 /*------------------------------------------------------------------*/
1184
1185 GList *
1186 mono_arch_get_global_int_regs (MonoCompile *cfg)
1187 {
1188 GList *regs = NULL;
1189 MonoMethodHeader *header;
1190 int i, top = 13;
1191
1192 header = cfg->header;
1193 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1194 cfg->frame_reg = s390_r11;
1195
1196 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1197 top = 12;
1198 for (i = 8; i < top; ++i) {
1199 if (cfg->frame_reg != i)
1200 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1201 }
1202
1203 return regs;
1204 }
1205
1206 /*========================= End of Function ========================*/
1207
1208 /*------------------------------------------------------------------*/
1209 /* */
1210 /* Name - mono_arch_flush_icache */
1211 /* */
1212 /* Function - Flush the CPU icache. */
1213 /* */
1214 /*------------------------------------------------------------------*/
1215
1216 void
1217 mono_arch_flush_icache (guint8 *code, gint size)
1218 {
1219 }
1220
1221 /*========================= End of Function ========================*/
1222
1223 /*------------------------------------------------------------------*/
1224 /* */
1225 /* Name - mono_arch_is_inst_imm */
1226 /* */
1227 /*------------------------------------------------------------------*/
1228
1229 gboolean
1230 mono_arch_is_inst_imm (gint64 imm)
1231 {
1232 /* The lowering pass will take care of it */
1233 return TRUE;
1234 }
1235
1236 /*========================= End of Function ========================*/
1237
1238 /*------------------------------------------------------------------*/
1239 /* */
1240 /* Name - add_general */
1241 /* */
1242 /* Function - Determine code and stack size incremements for a */
1243 /* parameter. */
1244 /* */
1245 /*------------------------------------------------------------------*/
1246
1247 static void inline
1248 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1249 {
1250 int disp;
1251
1252 if (simple) {
1253 if (*gr > S390_LAST_ARG_REG) {
1254 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1255 ainfo->offset = sz->stack_size;
1256 ainfo->reg = STK_BASE;
1257 ainfo->regtype = RegTypeBase;
1258 sz->stack_size += sizeof(int);
1259 sz->local_size += sizeof(int);
1260 sz->offStruct += sizeof(int);
1261 sz->code_size += 12;
1262 } else {
1263 ainfo->reg = *gr;
1264 sz->code_size += 8;
1265 }
1266 } else {
1267 if (*gr > S390_LAST_ARG_REG - 1) {
1268 disp = sz->stack_size;
1269 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1270 disp = sz->stack_size - disp;
1271 ainfo->offset = sz->stack_size;
1272 ainfo->reg = STK_BASE;
1273 ainfo->regtype = RegTypeBase;
1274 sz->stack_size += sizeof(long long);
1275 sz->local_size += (sizeof(long long) + disp);
1276 sz->offStruct += (sizeof(long long) + disp);
1277 sz->code_size += 10;
1278 } else {
1279 ainfo->reg = *gr;
1280 sz->code_size += 8;
1281 }
1282 (*gr) ++;
1283 }
1284 (*gr) ++;
1285 }
1286
1287 /*========================= End of Function ========================*/
1288
1289 /*------------------------------------------------------------------*/
1290 /* */
1291 /* Name - add_stackParm */
1292 /* */
1293 /* Function - Determine code and stack size incremements for a */
1294 /* parameter. */
1295 /* */
1296 /*------------------------------------------------------------------*/
1297
1298 static void inline
1299 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1300 {
1301 if (*gr > S390_LAST_ARG_REG) {
1302 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1303 ainfo->reg = STK_BASE;
1304 ainfo->offset = sz->stack_size;
1305 sz->stack_size += sizeof (gpointer);
1306 sz->parm_size += sizeof(gpointer);
1307 sz->offStruct += sizeof(gpointer);
1308 } else {
1309 ainfo->reg = *gr;
1310 ainfo->offset = sz->stack_size;
1311 }
1312 (*gr) ++;
1313 ainfo->offparm = sz->offset;
1314 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1315 ainfo->size = size;
1316 ainfo->regtype = RegTypeStructByAddr;
1317 ainfo->vtsize = size;
1318 sz->parm_size += size;
1319 }
1320
1321 /*========================= End of Function ========================*/
1322
1323 /*------------------------------------------------------------------*/
1324 /* */
1325 /* Name - add_float */
1326 /* */
1327 /* Function - Determine code and stack size incremements for a */
1328 /* float parameter. */
1329 /* */
1330 /*------------------------------------------------------------------*/
1331
1332 static void inline
1333 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1334 {
1335 if ((*fr) <= S390_LAST_FPARG_REG) {
1336 ainfo->regtype = RegTypeFP;
1337 ainfo->reg = *fr;
1338 sz->code_size += 4;
1339 (*fr) += 2;
1340 }
1341 else {
1342 ainfo->offset = sz->stack_size;
1343 ainfo->reg = STK_BASE;
1344 ainfo->regtype = RegTypeBase;
1345 sz->code_size += 4;
1346 sz->stack_size += ainfo->size;
1347 sz->local_size += ainfo->size;
1348 sz->offStruct += ainfo->size;
1349 }
1350 }
1351
1352 /*========================= End of Function ========================*/
1353
1354 /*------------------------------------------------------------------*/
1355 /* */
1356 /* Name - get_call_info */
1357 /* */
1358 /* Function - Determine the amount of space required for code */
1359 /* and stack. In addition determine starting points */
1360 /* for stack-based parameters, and area for struct- */
1361 /* ures being returned on the stack. */
1362 /* */
1363 /*------------------------------------------------------------------*/
1364
1365 static CallInfo *
1366 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1367 {
1368 guint i, fr, gr, size;
1369 int nParm = sig->hasthis + sig->param_count;
1370 MonoType *ret_type;
1371 guint32 simpletype, align;
1372 CallInfo *cinfo;
1373 size_data *sz;
1374 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1375
1376 if (mp)
1377 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1378 else
1379 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1380
1381 fr = 0;
1382 gr = s390_r2;
1383 nParm = 0;
1384 cinfo->struct_ret = 0;
1385 sz = &cinfo->sz;
1386 sz->offset = 0;
1387 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1388 sz->retStruct = 0;
1389 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1390 sz->code_size = 0;
1391 sz->parm_size = 0;
1392 sz->local_size = 0;
1393
1394 /*----------------------------------------------------------*/
1395 /* We determine the size of the return code/stack in case we*/
1396 /* need to reserve a register to be used to address a stack */
1397 /* area that the callee will use. */
1398 /*----------------------------------------------------------*/
1399
1400 ret_type = mono_type_get_underlying_type (sig->ret);
1401 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1402 simpletype = ret_type->type;
1403 enum_retvalue:
1404 switch (simpletype) {
1405 case MONO_TYPE_BOOLEAN:
1406 case MONO_TYPE_I1:
1407 case MONO_TYPE_U1:
1408 case MONO_TYPE_I2:
1409 case MONO_TYPE_U2:
1410 case MONO_TYPE_CHAR:
1411 case MONO_TYPE_I4:
1412 case MONO_TYPE_U4:
1413 case MONO_TYPE_I:
1414 case MONO_TYPE_U:
1415 case MONO_TYPE_CLASS:
1416 case MONO_TYPE_OBJECT:
1417 case MONO_TYPE_SZARRAY:
1418 case MONO_TYPE_ARRAY:
1419 case MONO_TYPE_PTR:
1420 case MONO_TYPE_FNPTR:
1421 case MONO_TYPE_STRING:
1422 cinfo->ret.reg = s390_r2;
1423 sz->code_size += 4;
1424 break;
1425 case MONO_TYPE_R4:
1426 case MONO_TYPE_R8:
1427 cinfo->ret.reg = s390_f0;
1428 sz->code_size += 4;
1429 break;
1430 case MONO_TYPE_I8:
1431 case MONO_TYPE_U8:
1432 cinfo->ret.reg = s390_r2;
1433 sz->code_size += 4;
1434 break;
1435 case MONO_TYPE_GENERICINST:
1436 if (!mono_type_generic_inst_is_valuetype (ret_type)) {
1437 cinfo->ret.reg = s390_r2;
1438 sz->code_size += 4;
1439 break;
1440 }
1441 /* Fall through */
1442 case MONO_TYPE_VALUETYPE: {
1443 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1444 if (klass->enumtype) {
1445 simpletype = mono_class_enum_basetype (klass)->type;
1446 goto enum_retvalue;
1447 }
1448 if (sig->pinvoke)
1449 size = mono_class_native_size (klass, &align);
1450 else
1451 size = mono_class_value_size (klass, &align);
1452
1453 cinfo->ret.reg = s390_r2;
1454 cinfo->struct_ret = 1;
1455 cinfo->ret.size = size;
1456 cinfo->ret.vtsize = size;
1457 gr++;
1458 break;
1459 }
1460 case MONO_TYPE_TYPEDBYREF:
1461 size = sizeof (MonoTypedRef);
1462 cinfo->ret.reg = s390_r2;
1463 cinfo->struct_ret = 1;
1464 cinfo->ret.size = size;
1465 cinfo->ret.vtsize = size;
1466 gr++;
1467 break;
1468 case MONO_TYPE_VOID:
1469 break;
1470 default:
1471 g_error ("mini-s390: cannot handle as return value 0x%x (0x%x)", sig->ret->type,simpletype);
1472 }
1473
1474 if (sig->hasthis) {
1475 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1476 cinfo->args[nParm].size = sizeof(gpointer);
1477 nParm++;
1478 }
1479
1480 /*----------------------------------------------------------*/
1481 /* We determine the size of the parameter code and stack */
1482 /* requirements by checking the types and sizes of the */
1483 /* parameters. */
1484 /*----------------------------------------------------------*/
1485
1486 for (i = 0; i < sig->param_count; ++i) {
1487 MonoType *ptype;
1488
1489 /*--------------------------------------------------*/
1490 /* Handle vararg type calls. All args are put on */
1491 /* the stack. */
1492 /*--------------------------------------------------*/
1493 if ((sig->call_convention == MONO_CALL_VARARG) &&
1494 (i == sig->sentinelpos)) {
1495 gr = S390_LAST_ARG_REG + 1;
1496 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1497 }
1498
1499 if (sig->params [i]->byref) {
1500 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1501 cinfo->args[nParm].size = sizeof(gpointer);
1502 nParm++;
1503 continue;
1504 }
1505
1506 ptype = mono_type_get_underlying_type (sig->params [i]);
1507 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1508 simpletype = ptype->type;
1509 switch (simpletype) {
1510 case MONO_TYPE_BOOLEAN:
1511 case MONO_TYPE_I1:
1512 case MONO_TYPE_U1:
1513 cinfo->args[nParm].size = sizeof(char);
1514 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1515 nParm++;
1516 break;
1517 case MONO_TYPE_I2:
1518 case MONO_TYPE_U2:
1519 case MONO_TYPE_CHAR:
1520 cinfo->args[nParm].size = sizeof(short);
1521 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1522 nParm++;
1523 break;
1524 case MONO_TYPE_I4:
1525 case MONO_TYPE_U4:
1526 cinfo->args[nParm].size = sizeof(int);
1527 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1528 nParm++;
1529 break;
1530 case MONO_TYPE_I:
1531 case MONO_TYPE_U:
1532 case MONO_TYPE_PTR:
1533 case MONO_TYPE_FNPTR:
1534 case MONO_TYPE_CLASS:
1535 case MONO_TYPE_OBJECT:
1536 case MONO_TYPE_STRING:
1537 case MONO_TYPE_SZARRAY:
1538 case MONO_TYPE_ARRAY:
1539 cinfo->args[nParm].size = sizeof(gpointer);
1540 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1541 nParm++;
1542 break;
1543 case MONO_TYPE_I8:
1544 case MONO_TYPE_U8:
1545 cinfo->args[nParm].size = sizeof(long long);
1546 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1547 nParm++;
1548 break;
1549 case MONO_TYPE_R4:
1550 cinfo->args[nParm].size = sizeof(float);
1551 add_float (&fr, sz, cinfo->args+nParm);
1552 nParm++;
1553 break;
1554 case MONO_TYPE_R8:
1555 cinfo->args[nParm].size = sizeof(double);
1556 add_float (&fr, sz, cinfo->args+nParm);
1557 nParm++;
1558 break;
1559 case MONO_TYPE_GENERICINST:
1560 if (!mono_type_generic_inst_is_valuetype (ptype)) {
1561 cinfo->args[nParm].size = sizeof(gpointer);
1562 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1563 nParm++;
1564 break;
1565 }
1566 /* Fall through */
1567 case MONO_TYPE_VALUETYPE: {
1568 MonoMarshalType *info;
1569 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1570 if (sig->pinvoke)
1571 size = mono_class_native_size (klass, &align);
1572 else
1573 size = mono_class_value_size (klass, &align);
1574
1575 info = mono_marshal_load_type_info (klass);
1576
1577 if ((info->native_size == sizeof(float)) &&
1578 (info->num_fields == 1) &&
1579 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1580 cinfo->args[nParm].size = sizeof(float);
1581 add_float(&fr, sz, cinfo->args+nParm);
1582 nParm ++;
1583 break;
1584 }
1585
1586 if ((info->native_size == sizeof(double)) &&
1587 (info->num_fields == 1) &&
1588 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1589 cinfo->args[nParm].size = sizeof(double);
1590 add_float(&fr, sz, cinfo->args+nParm);
1591 nParm ++;
1592 break;
1593 }
1594
1595 cinfo->args[nParm].vtsize = 0;
1596 cinfo->args[nParm].size = 0;
1597
1598 switch (size) {
1599 /*----------------------------------*/
1600 /* On S/390, structures of size 1, */
1601 /* 2, 4, and 8 bytes are passed in */
1602 /* (a) register(s). */
1603 /*----------------------------------*/
1604 case 0:
1605 case 1:
1606 case 2:
1607 case 4:
1608 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1609 cinfo->args[nParm].size = size;
1610 cinfo->args[nParm].regtype = RegTypeStructByVal;
1611 nParm++;
1612 sz->local_size += sizeof(long);
1613 break;
1614 case 8:
1615 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1616 cinfo->args[nParm].size = sizeof(long long);
1617 cinfo->args[nParm].regtype = RegTypeStructByVal;
1618 nParm++;
1619 sz->local_size += sizeof(long long);
1620 break;
1621 default:
1622 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1623 nParm++;
1624 }
1625 }
1626 break;
1627 case MONO_TYPE_TYPEDBYREF: {
1628 int size = sizeof (MonoTypedRef);
1629
1630 cinfo->args[nParm].vtsize = 0;
1631 cinfo->args[nParm].size = 0;
1632
1633 switch (size) {
1634 /*----------------------------------*/
1635 /* On S/390, structures of size 1, */
1636 /* 2, 4, and 8 bytes are passed in */
1637 /* (a) register(s). */
1638 /*----------------------------------*/
1639 case 0:
1640 case 1:
1641 case 2:
1642 case 4:
1643 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1644 cinfo->args[nParm].size = size;
1645 cinfo->args[nParm].regtype = RegTypeStructByVal;
1646 nParm++;
1647 sz->local_size += sizeof(long);
1648 break;
1649 case 8:
1650 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1651 cinfo->args[nParm].size = sizeof(long long);
1652 cinfo->args[nParm].regtype = RegTypeStructByVal;
1653 nParm++;
1654 sz->local_size += sizeof(long long);
1655 break;
1656 default:
1657 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1658 nParm++;
1659 }
1660 }
1661 break;
1662 default:
1663 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1664 }
1665 }
1666
1667 /*----------------------------------------------------------*/
1668 /* If we are passing a structure back then if it won't be */
1669 /* in a register(s) then we make room at the end of the */
1670 /* parameters that may have been placed on the stack */
1671 /*----------------------------------------------------------*/
1672 if (cinfo->struct_ret) {
1673 cinfo->ret.offset = sz->stack_size;
1674 switch (cinfo->ret.size) {
1675 case 0:
1676 case 1:
1677 case 2:
1678 case 4:
1679 case 8:
1680 break;
1681 default:
1682 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1683 }
1684 }
1685
1686 /*----------------------------------------------------------*/
1687 /* Handle the case where there are no implicit arguments */
1688 /*----------------------------------------------------------*/
1689 if ((sig->call_convention == MONO_CALL_VARARG) &&
1690 (sig->param_count == sig->sentinelpos)) {
1691 gr = S390_LAST_ARG_REG + 1;
1692 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1693 }
1694
1695 cinfo->lastgr = gr;
1696 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1697 sz->offset;
1698 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1699
1700 return (cinfo);
1701 }
1702
1703 /*========================= End of Function ========================*/
1704
1705 /*------------------------------------------------------------------*/
1706 /* */
1707 /* Name - mono_arch_allocate_vars */
1708 /* */
1709 /* Function - Set var information according to the calling */
1710 /* convention for S/390. The local var stuff should */
1711 /* most likely be split in another method. */
1712 /* */
1713 /* Parameter - @m - Compile unit. */
1714 /* */
1715 /*------------------------------------------------------------------*/
1716
1717 void
1718 mono_arch_allocate_vars (MonoCompile *cfg)
1719 {
1720 MonoMethodSignature *sig;
1721 MonoMethodHeader *header;
1722 MonoInst *inst;
1723 CallInfo *cinfo;
1724 int iParm, iVar, offset, size, align, curinst;
1725 int frame_reg = STK_BASE;
1726 int sArg, eArg;
1727
1728 header = cfg->header;
1729
1730 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1731
1732 sig = mono_method_signature (cfg->method);
1733
1734 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1735
1736 /*---------------------------------------------------------*/
1737 /* We use the frame register also for any method that has */
1738 /* filter clauses. This way, when the handlers are called, */
1739 /* the code will reference local variables using the frame */
1740 /* reg instead of the stack pointer: if we had to restore */
1741 /* the stack pointer, we'd corrupt the method frames that */
1742 /* are already on the stack (since filters get called */
1743 /* before stack unwinding happens) when the filter code */
1744 /* would call any method. */
1745 /*---------------------------------------------------------*/
1746 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1747 frame_reg = s390_r11;
1748
1749 cfg->frame_reg = frame_reg;
1750
1751 cfg->arch.bkchain_reg = -1;
1752
1753 if (frame_reg != STK_BASE)
1754 cfg->used_int_regs |= 1 << frame_reg;
1755
1756 sig = mono_method_signature (cfg->method);
1757
1758 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1759
1760 if (!cinfo->struct_ret) {
1761 switch (mono_type_get_underlying_type (sig->ret)->type) {
1762 case MONO_TYPE_VOID:
1763 break;
1764 default:
1765 cfg->ret->opcode = OP_REGVAR;
1766 cfg->ret->dreg = s390_r2;
1767 break;
1768 }
1769 }
1770
1771 /*--------------------------------------------------------------*/
1772 /* local vars are at a positive offset from the stack pointer */
1773 /* also note that if the function uses alloca, we use s390_r11 */
1774 /* to point at the local variables. */
1775 /* add parameter area size for called functions */
1776 /*--------------------------------------------------------------*/
1777 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1778 cfg->sig_cookie = 0;
1779
1780 if (cinfo->struct_ret) {
1781 inst = cfg->vret_addr;
1782 offset = S390_ALIGN(offset, sizeof(gpointer));
1783 inst->inst_offset = offset;
1784 inst->opcode = OP_REGOFFSET;
1785 inst->inst_basereg = frame_reg;
1786 offset += sizeof(gpointer);
1787 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1788 printf ("vret_addr =");
1789 mono_print_ins (cfg->vret_addr);
1790 }
1791 }
1792
1793 if (sig->hasthis) {
1794 inst = cfg->args [0];
1795 if (inst->opcode != OP_REGVAR) {
1796 inst->opcode = OP_REGOFFSET;
1797 inst->inst_basereg = frame_reg;
1798 offset = S390_ALIGN(offset, sizeof(gpointer));
1799 inst->inst_offset = offset;
1800 offset += sizeof (gpointer);
1801 }
1802 curinst = sArg = 1;
1803 } else {
1804 curinst = sArg = 0;
1805 }
1806
1807 eArg = sig->param_count + sArg;
1808
1809 if (sig->call_convention == MONO_CALL_VARARG)
1810 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1811
1812 for (iParm = sArg; iParm < eArg; ++iParm) {
1813 inst = cfg->args [curinst];
1814 if (inst->opcode != OP_REGVAR) {
1815 switch (cinfo->args[iParm].regtype) {
1816 case RegTypeStructByAddr : {
1817 MonoInst *indir;
1818
1819 size = sizeof (gpointer);
1820
1821 if (cinfo->args [iParm].reg == STK_BASE) {
1822 cfg->arch.bkchain_reg = s390_r12;
1823 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1824
1825 inst->opcode = OP_REGOFFSET;
1826 inst->inst_basereg = cfg->arch.bkchain_reg;
1827 inst->inst_offset = cinfo->args [iParm].offset;
1828 } else {
1829 inst->opcode = OP_REGOFFSET;
1830 inst->inst_basereg = frame_reg;
1831 inst->inst_offset = S390_ALIGN(offset, sizeof (gpointer));
1832 }
1833
1834 /* Add a level of indirection */
1835 MONO_INST_NEW (cfg, indir, 0);
1836 *indir = *inst;
1837 inst->opcode = OP_VTARG_ADDR;
1838 inst->inst_left = indir;
1839 }
1840 break;
1841 case RegTypeStructByVal :
1842 size = cinfo->args[iParm].size;
1843 offset = S390_ALIGN(offset, size);
1844 inst->opcode = OP_REGOFFSET;
1845 inst->inst_basereg = frame_reg;
1846 inst->inst_offset = S390_ALIGN (offset, size);
1847 break;
1848 default :
1849 if (cinfo->args [iParm].reg == STK_BASE) {
1850 /*
1851 * These arguments are in the previous frame, so we can't
1852 * compute their offset from the current frame pointer right
1853 * now, since cfg->stack_offset is not yet known, so dedicate a
1854 * register holding the previous frame pointer.
1855 */
1856 cfg->arch.bkchain_reg = s390_r12;
1857 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1858
1859 inst->opcode = OP_REGOFFSET;
1860 inst->inst_basereg = cfg->arch.bkchain_reg;
1861 size = (cinfo->args[iParm].size < 4
1862 ? 4 - cinfo->args[iParm].size
1863 : 0);
1864 inst->inst_offset = cinfo->args [iParm].offset + size;
1865 size = sizeof (long);
1866 } else {
1867 inst->opcode = OP_REGOFFSET;
1868 inst->inst_basereg = frame_reg;
1869 size = (cinfo->args[iParm].size < 8
1870 ? sizeof(long)
1871 : sizeof(long long));
1872 offset = S390_ALIGN(offset, size);
1873 inst->inst_offset = offset;
1874 }
1875 }
1876 if ((sig->call_convention == MONO_CALL_VARARG) &&
1877 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1878 (iParm < sig->sentinelpos))
1879 cfg->sig_cookie += size;
1880
1881 offset += size;
1882 }
1883 curinst++;
1884 }
1885
1886 curinst = cfg->locals_start;
1887 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1888 inst = cfg->varinfo [iVar];
1889 if ((inst->flags & MONO_INST_IS_DEAD) ||
1890 (inst->opcode == OP_REGVAR))
1891 continue;
1892
1893 /*--------------------------------------------------*/
1894 /* inst->backend.is_pinvoke indicates native sized value types, */
1895 /* this is used by the pinvoke wrappers when they */
1896 /* call functions returning structure */
1897 /*--------------------------------------------------*/
1898 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1899 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1900 else
1901 size = mono_type_size (inst->inst_vtype, &align);
1902
1903 offset = S390_ALIGN(offset, align);
1904 inst->inst_offset = offset;
1905 inst->opcode = OP_REGOFFSET;
1906 inst->inst_basereg = frame_reg;
1907 offset += size;
1908 DEBUG (g_print("allocating local %d to %ld\n", iVar, inst->inst_offset));
1909 }
1910
1911 /*------------------------------------------------------*/
1912 /* Allow space for the trace method stack area if needed*/
1913 /*------------------------------------------------------*/
1914 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method)) {
1915 offset += S390_TRACE_STACK_SIZE;
1916 }
1917
1918 /*------------------------------------------------------*/
1919 /* Reserve space to save LMF and caller saved registers */
1920 /*------------------------------------------------------*/
1921 if (cfg->method->save_lmf)
1922 offset += sizeof (MonoLMF);
1923
1924 /*------------------------------------------------------*/
1925 /* align the offset */
1926 /*------------------------------------------------------*/
1927 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1928
1929 /* Fix up offsets for arguments whose value is in the parent frame */
1930 for (iParm = sArg; iParm < eArg; ++iParm) {
1931 inst = cfg->args [iParm];
1932
1933 if (inst->opcode == OP_S390_STKARG) {
1934 inst->opcode = OP_REGOFFSET;
1935 inst->inst_offset += cfg->stack_offset;
1936 }
1937 }
1938 }
1939
1940 /*========================= End of Function ========================*/
1941
1942 /*------------------------------------------------------------------*/
1943 /* */
1944 /* Name - mono_arch_create_vars */
1945 /* */
1946 /*------------------------------------------------------------------*/
1947
1948 void
1949 mono_arch_create_vars (MonoCompile *cfg)
1950 {
1951 MonoMethodSignature *sig;
1952 CallInfo *cinfo;
1953
1954 sig = mono_method_signature (cfg->method);
1955
1956 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1957
1958 if (cinfo->struct_ret) {
1959 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
1960 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1961 printf ("vret_addr = ");
1962 mono_print_ins (cfg->vret_addr);
1963 }
1964 }
1965 }
1966
1967 /*========================= End of Function ========================*/
1968
1969 static void
1970 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
1971 {
1972 MonoInst *ins;
1973
1974 switch (storage) {
1975 case RegTypeGeneral:
1976 MONO_INST_NEW (cfg, ins, OP_MOVE);
1977 ins->dreg = mono_alloc_ireg (cfg);
1978 ins->sreg1 = tree->dreg;
1979 MONO_ADD_INS (cfg->cbb, ins);
1980 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
1981 break;
1982 case RegTypeFP:
1983 MONO_INST_NEW (cfg, ins, OP_FMOVE);
1984 ins->dreg = mono_alloc_freg (cfg);
1985 ins->sreg1 = tree->dreg;
1986 MONO_ADD_INS (cfg->cbb, ins);
1987 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
1988 break;
1989 case RegTypeFPR4:
1990 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
1991 ins->dreg = mono_alloc_freg (cfg);
1992 ins->sreg1 = tree->dreg;
1993 MONO_ADD_INS (cfg->cbb, ins);
1994 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
1995 break;
1996 default:
1997 g_assert_not_reached ();
1998 }
1999 }
2000
2001 static void
2002 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2003 {
2004 MonoMethodSignature *tmpSig;
2005 MonoInst *sig_arg;
2006
2007 cfg->disable_aot = TRUE;
2008
2009 /*----------------------------------------------------------*/
2010 /* mono_ArgIterator_Setup assumes the signature cookie is */
2011 /* passed first and all the arguments which were before it */
2012 /* passed on the stack after the signature. So compensate */
2013 /* by passing a different signature. */
2014 /*----------------------------------------------------------*/
2015 tmpSig = mono_metadata_signature_dup (call->signature);
2016 tmpSig->param_count -= call->signature->sentinelpos;
2017 tmpSig->sentinelpos = 0;
2018 if (tmpSig->param_count > 0)
2019 memcpy (tmpSig->params,
2020 call->signature->params + call->signature->sentinelpos,
2021 tmpSig->param_count * sizeof(MonoType *));
2022
2023 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2024 sig_arg->dreg = mono_alloc_ireg (cfg);
2025 sig_arg->inst_p0 = tmpSig;
2026 MONO_ADD_INS (cfg->cbb, sig_arg);
2027
2028 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2029 cinfo->sigCookie.offset, sig_arg->dreg);
2030 }
2031
2032 /*------------------------------------------------------------------*/
2033 /* */
2034 /* Name - mono_arch_emit_call */
2035 /* */
2036 /*------------------------------------------------------------------*/
2037
2038 void
2039 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2040 {
2041 MonoInst *in;
2042 MonoMethodSignature *sig;
2043 MonoInst *ins;
2044 int i, n, lParamArea;
2045 CallInfo *cinfo;
2046 ArgInfo *ainfo = NULL;
2047 int stackSize;
2048
2049 sig = call->signature;
2050 n = sig->param_count + sig->hasthis;
2051 DEBUG (g_print ("Call requires: %d parameters\n",n));
2052
2053 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2054
2055 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2056 call->stack_usage = MAX(stackSize, call->stack_usage);
2057 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2058 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2059 cfg->flags |= MONO_CFG_HAS_CALLS;
2060
2061 if (cinfo->struct_ret) {
2062 MONO_INST_NEW (cfg, ins, OP_MOVE);
2063 ins->sreg1 = call->vret_var->dreg;
2064 ins->dreg = mono_alloc_preg (cfg);
2065 MONO_ADD_INS (cfg->cbb, ins);
2066 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2067 }
2068
2069 for (i = 0; i < n; ++i) {
2070 ainfo = cinfo->args + i;
2071 MonoType *t;
2072
2073 if (i >= sig->hasthis)
2074 t = sig->params [i - sig->hasthis];
2075 else
2076 t = &mono_defaults.int_class->byval_arg;
2077 t = mono_type_get_underlying_type (t);
2078
2079 in = call->args [i];
2080
2081 if ((sig->call_convention == MONO_CALL_VARARG) &&
2082 (i == sig->sentinelpos)) {
2083 emit_sig_cookie (cfg, call, cinfo);
2084 }
2085
2086 switch (ainfo->regtype) {
2087 case RegTypeGeneral:
2088 if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2089 MONO_INST_NEW (cfg, ins, OP_MOVE);
2090 ins->dreg = mono_alloc_ireg (cfg);
2091 ins->sreg1 = in->dreg + 2;
2092 MONO_ADD_INS (cfg->cbb, ins);
2093 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
2094 MONO_INST_NEW (cfg, ins, OP_MOVE);
2095 ins->dreg = mono_alloc_ireg (cfg);
2096 ins->sreg1 = in->dreg + 1;
2097 MONO_ADD_INS (cfg->cbb, ins);
2098 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg + 1, FALSE);
2099 } else {
2100 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2101 }
2102 break;
2103 case RegTypeFP:
2104 if (MONO_TYPE_ISSTRUCT (t)) {
2105 /* Valuetype passed in one fp register */
2106 ainfo->regtype = RegTypeStructByValInFP;
2107 /* Fall through */
2108 } else {
2109 if (ainfo->size == 4)
2110 ainfo->regtype = RegTypeFPR4;
2111 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2112 break;
2113 }
2114 case RegTypeStructByVal:
2115 case RegTypeStructByAddr: {
2116 guint32 align;
2117 guint32 size;
2118
2119 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2120 size = sizeof (MonoTypedRef);
2121 align = sizeof (gpointer);
2122 }
2123 else
2124 if (sig->pinvoke)
2125 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2126 else {
2127 /*
2128 * Other backends use mono_type_stack_size (), but that
2129 * aligns the size to 8, which is larger than the size of
2130 * the source, leading to reads of invalid memory if the
2131 * source is at the end of address space.
2132 */
2133 size = mono_class_value_size (in->klass, &align);
2134 }
2135
2136 g_assert (in->klass);
2137
2138 ainfo->offparm += cinfo->sz.offStruct;
2139
2140 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2141 ins->sreg1 = in->dreg;
2142 ins->klass = in->klass;
2143 ins->backend.size = ainfo->size;
2144 ins->inst_p0 = call;
2145 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2146 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2147
2148 MONO_ADD_INS (cfg->cbb, ins);
2149
2150 if (ainfo->regtype == RegTypeStructByAddr) {
2151 /*
2152 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2153 * use the normal OUTARG opcodes to pass the address of the location to
2154 * the callee.
2155 */
2156 int treg = mono_alloc_preg (cfg);
2157 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2158 STK_BASE, ainfo->offparm);
2159 if (ainfo->reg == STK_BASE) {
2160 /* The address is passed on the stack */
2161 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2162 ins->inst_destbasereg = STK_BASE;
2163 ins->inst_offset = ainfo->offset;
2164 ins->sreg1 = treg;
2165 MONO_ADD_INS (cfg->cbb, ins);
2166 } else {
2167 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2168 }
2169 }
2170 break;
2171 }
2172 case RegTypeBase:
2173 if (!t->byref && t->type == MONO_TYPE_R4) {
2174 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2175 STK_BASE, ainfo->offset,
2176 in->dreg);
2177 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2178 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2179 STK_BASE, ainfo->offset,
2180 in->dreg);
2181 } else if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2182 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2183 ins->inst_destbasereg = STK_BASE;
2184 ins->inst_offset = ainfo->offset + MINI_LS_WORD_OFFSET;
2185 ins->sreg1 = in->dreg + 1;
2186 MONO_ADD_INS (cfg->cbb, ins);
2187
2188 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2189 ins->inst_destbasereg = STK_BASE;
2190 ins->inst_offset = ainfo->offset + MINI_MS_WORD_OFFSET;
2191 ins->sreg1 = in->dreg + 2;
2192 MONO_ADD_INS (cfg->cbb, ins);
2193 } else {
2194 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2195 ins->inst_destbasereg = STK_BASE;
2196 ins->inst_offset = ainfo->offset;
2197 ins->sreg1 = in->dreg;
2198 MONO_ADD_INS (cfg->cbb, ins);
2199 }
2200 break;
2201 default:
2202 g_assert_not_reached ();
2203 break;
2204 }
2205 }
2206
2207 /*
2208 * Handle the case where there are no implicit arguments
2209 */
2210 if ((sig->call_convention == MONO_CALL_VARARG) &&
2211 (i == sig->sentinelpos)) {
2212 emit_sig_cookie (cfg, call, cinfo);
2213 }
2214 }
2215
2216 /*========================= End of Function ========================*/
2217
2218 /*------------------------------------------------------------------*/
2219 /* */
2220 /* Name - mono_arch_emit_outarg_vt */
2221 /* */
2222 /*------------------------------------------------------------------*/
2223
2224 void
2225 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2226 {
2227 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2228 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2229 int size = ins->backend.size;
2230
2231 if (ainfo->regtype == RegTypeStructByVal) {
2232 /*
2233 arg->ins.sreg1 = ainfo->reg;
2234 arg->ins.opcode = OP_OUTARG_VT;
2235 arg->size = ainfo->size;
2236 arg->offset = ainfo->offset;
2237 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2238 */
2239 if (ainfo->reg != STK_BASE) {
2240 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2241 } else {
2242 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2243 src->dreg, 0);
2244 }
2245 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2246 int dreg = mono_alloc_freg (cfg);
2247
2248 if (ainfo->size == 4) {
2249 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2250 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2251 } else {
2252 g_assert (ainfo->size == 8);
2253
2254 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2255 }
2256
2257 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2258 } else {
2259 MONO_EMIT_NEW_MOVE (cfg, STK_BASE, ainfo->offparm,
2260 src->dreg, 0, size);
2261 }
2262 }
2263
2264 /*------------------------------------------------------------------*/
2265 /* */
2266 /* Name - mono_arch_emit_setret */
2267 /* */
2268 /*------------------------------------------------------------------*/
2269
2270 void
2271 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2272 {
2273 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2274
2275 if (!ret->byref) {
2276 if (ret->type == MONO_TYPE_R4) {
2277 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2278 return;
2279 } else if (ret->type == MONO_TYPE_R8) {
2280 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2281 return;
2282 } else if (ret->type == MONO_TYPE_I8 || ret->type == MONO_TYPE_U8) {
2283 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r3, val->dreg + 1);
2284 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r2, val->dreg + 2);
2285 return;
2286 }
2287 }
2288
2289 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2290 }
2291
2292 /*========================= End of Function ========================*/
2293
2294 /*------------------------------------------------------------------*/
2295 /* */
2296 /* Name - mono_arch_instrument_mem_needs */
2297 /* */
2298 /* Function - Allow tracing to work with this interface (with */
2299 /* an optional argument). */
2300 /* */
2301 /*------------------------------------------------------------------*/
2302
2303 void
2304 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2305 {
2306 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2307 *stack = 0;
2308 /* split prolog-epilog requirements? */
2309 *code = 50; /* max bytes needed: check this number */
2310 }
2311
2312 /*========================= End of Function ========================*/
2313
2314 /*------------------------------------------------------------------*/
2315 /* */
2316 /* Name - mono_arch_instrument_prolog */
2317 /* */
2318 /* Function - Create an "instrumented" prolog. */
2319 /* */
2320 /*------------------------------------------------------------------*/
2321
2322 void*
2323 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2324 gboolean enable_arguments)
2325 {
2326 guchar *code = p;
2327 int parmOffset,
2328 fpOffset,
2329 baseReg;
2330
2331 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2332 if (cfg->method->save_lmf)
2333 parmOffset -= sizeof(MonoLMF);
2334 fpOffset = parmOffset + (5*sizeof(gint32));
2335 if (fpOffset > 4096) {
2336 s390_lr (code, s390_r12, STK_BASE);
2337 baseReg = s390_r12;
2338 while (fpOffset > 4096) {
2339 s390_ahi (code, baseReg, 4096);
2340 fpOffset -= 4096;
2341 parmOffset -= 4096;
2342 }
2343 } else {
2344 baseReg = STK_BASE;
2345 }
2346
2347 s390_stm (code, s390_r2, s390_r6, baseReg, parmOffset);
2348 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2349 s390_std (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2350 s390_std (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2351 s390_basr (code, s390_r13, 0);
2352 s390_j (code, 6);
2353 s390_word (code, cfg->method);
2354 s390_word (code, func);
2355 s390_l (code, s390_r2, 0, s390_r13, 4);
2356 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2357 s390_lr (code, s390_r4, STK_BASE);
2358 s390_ahi (code, s390_r4, cfg->stack_usage);
2359 s390_l (code, s390_r1, 0, s390_r13, 8);
2360 s390_basr (code, s390_r14, s390_r1);
2361 s390_ld (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2362 s390_ld (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2363 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2364 s390_lm (code, s390_r2, s390_r6, baseReg, parmOffset);
2365
2366 return code;
2367 }
2368
2369 /*========================= End of Function ========================*/
2370
2371 /*------------------------------------------------------------------*/
2372 /* */
2373 /* Name - mono_arch_instrument_epilog */
2374 /* */
2375 /* Function - Create an epilog that will handle the returned */
2376 /* values used in instrumentation. */
2377 /* */
2378 /*------------------------------------------------------------------*/
2379
2380 void*
2381 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2382 {
2383 guchar *code = p;
2384 int save_mode = SAVE_NONE,
2385 saveOffset;
2386 MonoMethod *method = cfg->method;
2387 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2388
2389 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2390 if (method->save_lmf)
2391 saveOffset -= sizeof(MonoLMF);
2392
2393 handle_enum:
2394 switch (rtype) {
2395 case MONO_TYPE_VOID:
2396 /* special case string .ctor icall */
2397 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2398 save_mode = SAVE_ONE;
2399 else
2400 save_mode = SAVE_NONE;
2401 break;
2402 case MONO_TYPE_I8:
2403 case MONO_TYPE_U8:
2404 save_mode = SAVE_TWO;
2405 break;
2406 case MONO_TYPE_R4:
2407 save_mode = SAVE_R4;
2408 break;
2409 case MONO_TYPE_R8:
2410 save_mode = SAVE_R8;
2411 break;
2412 case MONO_TYPE_VALUETYPE:
2413 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2414 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2415 goto handle_enum;
2416 }
2417 save_mode = SAVE_STRUCT;
2418 break;
2419 default:
2420 save_mode = SAVE_ONE;
2421 break;
2422 }
2423
2424 switch (save_mode) {
2425 case SAVE_TWO:
2426 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2427 if (enable_arguments) {
2428 s390_lr (code, s390_r4, s390_r3);
2429 s390_lr (code, s390_r3, s390_r2);
2430 }
2431 break;
2432 case SAVE_ONE:
2433 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2434 if (enable_arguments) {
2435 s390_lr (code, s390_r3, s390_r2);
2436 }
2437 break;
2438 case SAVE_R4:
2439 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2440 if (enable_arguments) {
2441 s390_ldebr (code, s390_f0, s390_f0);
2442 }
2443 break;
2444 case SAVE_R8:
2445 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2446 break;
2447 case SAVE_STRUCT:
2448 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2449 if (enable_arguments) {
2450 s390_l (code, s390_r3, 0, cfg->frame_reg,
2451 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2452 }
2453 break;
2454 case SAVE_NONE:
2455 default:
2456 break;
2457 }
2458
2459 s390_basr (code, s390_r13, 0);
2460 s390_j (code, 6);
2461 s390_word (code, cfg->method);
2462 s390_word (code, func);
2463 s390_l (code, s390_r2, 0, s390_r13, 4);
2464 s390_l (code, s390_r1, 0, s390_r13, 8);
2465 s390_basr (code, s390_r14, s390_r1);
2466
2467 switch (save_mode) {
2468 case SAVE_TWO:
2469 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2470 break;
2471 case SAVE_ONE:
2472 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2473 break;
2474 case SAVE_R4:
2475 case SAVE_R8:
2476 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2477 break;
2478 case SAVE_STRUCT:
2479 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2480 break;
2481 case SAVE_NONE:
2482 default:
2483 break;
2484 }
2485
2486 return code;
2487 }
2488
2489 /*========================= End of Function ========================*/
2490
2491 void
2492 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2493 {
2494 }
2495
2496 /*------------------------------------------------------------------*/
2497 /* */
2498 /* Name - mono_arch_peephole_pass */
2499 /* */
2500 /* Function - Form a peephole pass at the code looking for */
2501 /* simple optimizations. */
2502 /* */
2503 /*------------------------------------------------------------------*/
2504
2505 void
2506 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2507 {
2508 MonoInst *ins, *n;
2509
2510 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2511 mono_peephole_ins (bb, ins);
2512 }
2513 }
2514
2515 /*========================= End of Function ========================*/
2516
2517 void
2518 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2519 {
2520 MonoInst *ins, *next;
2521
2522 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2523 switch (ins->opcode) {
2524 case OP_DIV_IMM:
2525 case OP_REM_IMM:
2526 case OP_IDIV_IMM:
2527 case OP_IREM_IMM:
2528 case OP_IDIV_UN_IMM:
2529 case OP_IREM_UN_IMM:
2530 case OP_LOCALLOC_IMM:
2531 mono_decompose_op_imm (cfg, bb, ins);
2532 break;
2533 default:
2534 break;
2535 }
2536 }
2537
2538 bb->max_vreg = cfg->next_vreg;
2539 }
2540
2541 /*========================= End of Function ========================*/
2542
2543 /*------------------------------------------------------------------*/
2544 /* */
2545 /* Name - emit_float_to_int */
2546 /* */
2547 /* Function - Create instructions which will convert a floating */
2548 /* point value to integer. */
2549 /* */
2550 /*------------------------------------------------------------------*/
2551
2552 static guchar*
2553 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2554 {
2555 /* sreg is a float, dreg is an integer reg. */
2556 if (is_signed) {
2557 s390_cfdbr (code, dreg, 5, sreg);
2558 switch (size) {
2559 case 1:
2560 s390_lhi (code, s390_r0, 0);
2561 s390_lhi (code, s390_r13, 0xff);
2562 s390_ltr (code, dreg, dreg);
2563 s390_jnl (code, 4);
2564 s390_lhi (code, s390_r0, 0x80);
2565 s390_nr (code, dreg, s390_r13);
2566 s390_or (code, dreg, s390_r0);
2567 break;
2568 }
2569 } else {
2570 short *o[1];
2571 s390_basr (code, s390_r13, 0);
2572 s390_j (code, 10);
2573 s390_llong (code, 0x41e0000000000000LL);
2574 s390_llong (code, 0x41f0000000000000LL);
2575 s390_ldr (code, s390_f15, sreg);
2576 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2577 s390_jl (code, 0); CODEPTR(code, o[0]);
2578 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2579 s390_cfdbr (code, dreg, 7, s390_f15);
2580 s390_j (code, 4);
2581 PTRSLOT(code, o[0]);
2582 s390_cfdbr (code, dreg, 5, sreg);
2583 switch (size) {
2584 case 1:
2585 s390_lhi (code, s390_r0, 0xff);
2586 s390_nr (code, dreg, s390_r0);
2587 break;
2588 case 2:
2589 s390_lhi (code, s390_r0, -1);
2590 s390_srl (code, s390_r0, 0, 16);
2591 s390_nr (code, dreg, s390_r0);
2592 break;
2593 }
2594 }
2595 return code;
2596 }
2597
2598 /*========================= End of Function ========================*/
2599
2600 /*------------------------------------------------------------------*/
2601 /* */
2602 /* Name - mono_arch_output_basic_block */
2603 /* */
2604 /* Function - Perform the "real" work of emitting instructions */
2605 /* that will do the work of in the basic block. */
2606 /* */
2607 /*------------------------------------------------------------------*/
2608
2609 void
2610 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2611 {
2612 MonoInst *ins;
2613 MonoCallInst *call;
2614 guint offset;
2615 guint8 *code = cfg->native_code + cfg->code_len;
2616 MonoInst *last_ins = NULL;
2617 guint last_offset = 0;
2618 int max_len, cpos, src2;
2619
2620 /* we don't align basic blocks of loops on s390 */
2621
2622 if (cfg->verbose_level > 2)
2623 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2624
2625 cpos = bb->max_offset;
2626
2627 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2628 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2629 //g_assert (!mono_compile_aot);
2630 //cpos += 6;
2631 //if (bb->cil_code)
2632 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2633 /* this is not thread save, but good enough */
2634 /* fixme: howto handle overflows? */
2635 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2636 }
2637
2638 MONO_BB_FOR_EACH_INS (bb, ins) {
2639 offset = code - cfg->native_code;
2640
2641 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2642
2643 if (offset > (cfg->code_size - max_len - 16)) {
2644 cfg->code_size *= 2;
2645 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2646 code = cfg->native_code + offset;
2647 }
2648
2649 mono_debug_record_line_number (cfg, ins, offset);
2650
2651 switch (ins->opcode) {
2652 case OP_STOREI1_MEMBASE_IMM: {
2653 s390_lhi (code, s390_r0, ins->inst_imm);
2654 if (s390_is_uimm12(ins->inst_offset))
2655 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2656 else {
2657 s390_basr (code, s390_r13, 0);
2658 s390_j (code, 4);
2659 s390_word (code, ins->inst_offset);
2660 s390_l (code, s390_r13, 0, s390_r13, 4);
2661 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2662 }
2663 }
2664 break;
2665 case OP_STOREI2_MEMBASE_IMM: {
2666 s390_lhi (code, s390_r0, ins->inst_imm);
2667 if (s390_is_uimm12(ins->inst_offset)) {
2668 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2669 } else {
2670 s390_basr (code, s390_r13, 0);
2671 s390_j (code, 4);
2672 s390_word (code, ins->inst_offset);
2673 s390_l (code, s390_r13, 0, s390_r13, 4);
2674 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2675 }
2676 }
2677 break;
2678 case OP_STORE_MEMBASE_IMM:
2679 case OP_STOREI4_MEMBASE_IMM: {
2680 if (s390_is_imm16(ins->inst_imm)) {
2681 s390_lhi (code, s390_r0, ins->inst_imm);
2682 } else {
2683 s390_basr (code, s390_r13, 0);
2684 s390_j (code, 4);
2685 s390_word (code, ins->inst_imm);
2686 s390_l (code, s390_r0, 0, s390_r13, 4);
2687 }
2688 if (s390_is_uimm12(ins->inst_offset)) {
2689 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2690 } else {
2691 s390_basr (code, s390_r13, 0);
2692 s390_j (code, 4);
2693 s390_word (code, ins->inst_offset);
2694 s390_l (code, s390_r13, 0, s390_r13, 4);
2695 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2696 }
2697 }
2698 break;
2699 case OP_STOREI1_MEMBASE_REG: {
2700 if (s390_is_uimm12(ins->inst_offset)) {
2701 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2702 } else {
2703 s390_basr (code, s390_r13, 0);
2704 s390_j (code, 4);
2705 s390_word (code, ins->inst_offset);
2706 s390_l (code, s390_r13, 0, s390_r13, 4);
2707 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2708 }
2709 }
2710 break;
2711 case OP_STOREI2_MEMBASE_REG: {
2712 if (s390_is_uimm12(ins->inst_offset)) {
2713 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2714 } else {
2715 s390_basr (code, s390_r13, 0);
2716 s390_j (code, 4);
2717 s390_word (code, ins->inst_offset);
2718 s390_l (code, s390_r13, 0, s390_r13, 4);
2719 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2720 }
2721 }
2722 break;
2723 case OP_STORE_MEMBASE_REG:
2724 case OP_STOREI4_MEMBASE_REG: {
2725 if (s390_is_uimm12(ins->inst_offset)) {
2726 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2727 } else {
2728 s390_basr (code, s390_r13, 0);
2729 s390_j (code, 4);
2730 s390_word (code, ins->inst_offset);
2731 s390_l (code, s390_r13, 0, s390_r13, 4);
2732 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2733 }
2734 }
2735 break;
2736 case OP_LOADU4_MEM:
2737 g_assert_not_reached ();
2738 break;
2739 case OP_LOAD_MEMBASE:
2740 case OP_LOADI4_MEMBASE:
2741 case OP_LOADU4_MEMBASE: {
2742 if (s390_is_uimm12(ins->inst_offset))
2743 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2744 else {
2745 if (s390_is_imm16(ins->inst_offset)) {
2746 s390_lhi (code, s390_r13, ins->inst_offset);
2747 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2748 } else {
2749 s390_basr (code, s390_r13, 0);
2750 s390_j (code, 4);
2751 s390_word (code, ins->inst_offset);
2752 s390_l (code, s390_r13, 0, s390_r13, 4);
2753 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2754 }
2755 }
2756 }
2757 break;
2758 case OP_LOADU1_MEMBASE: {
2759 s390_lhi (code, s390_r0, 0);
2760 if (s390_is_uimm12(ins->inst_offset))
2761 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2762 else {
2763 s390_basr (code, s390_r13, 0);
2764 s390_j (code, 4);
2765 s390_word (code, ins->inst_offset);
2766 s390_l (code, s390_r13, 0, s390_r13, 4);
2767 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2768 }
2769 s390_lr (code, ins->dreg, s390_r0);
2770 }
2771 break;
2772 case OP_LOADI1_MEMBASE: {
2773 s390_lhi (code, s390_r0, 0);
2774 if (s390_is_uimm12(ins->inst_offset))
2775 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2776 else {
2777 s390_basr (code, s390_r13, 0);
2778 s390_j (code, 4);
2779 s390_word (code, ins->inst_offset);
2780 s390_l (code, s390_r13, 0, s390_r13, 4);
2781 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2782 }
2783 s390_lhi (code, s390_r13, 0x80);
2784 s390_nr (code, s390_r13, s390_r0);
2785 s390_jz (code, 5);
2786 s390_lhi (code, s390_r13, 0xff00);
2787 s390_or (code, s390_r0, s390_r13);
2788 s390_lr (code, ins->dreg, s390_r0);
2789 }
2790 break;
2791 case OP_LOADU2_MEMBASE: {
2792 s390_lhi (code, s390_r0, 0);
2793 if (s390_is_uimm12(ins->inst_offset))
2794 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
2795 else {
2796 s390_basr (code, s390_r13, 0);
2797 s390_j (code, 4);
2798 s390_word (code, ins->inst_offset);
2799 s390_l (code, s390_r13, 0, s390_r13, 4);
2800 s390_ar (code, s390_r13, ins->inst_basereg);
2801 s390_icm (code, s390_r0, 3, s390_r13, 0);
2802 }
2803 s390_lr (code, ins->dreg, s390_r0);
2804 }
2805 break;
2806 case OP_LOADI2_MEMBASE: {
2807 s390_lhi (code, s390_r0, 0);
2808 if (s390_is_uimm12(ins->inst_offset))
2809 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2810 else {
2811 s390_basr (code, s390_r13, 0);
2812 s390_j (code, 4);
2813 s390_word (code, ins->inst_offset);
2814 s390_l (code, s390_r13, 0, s390_r13, 4);
2815 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2816 }
2817 s390_lr (code, ins->dreg, s390_r0);
2818 }
2819 break;
2820
2821 case OP_ICONV_TO_I1: {
2822 if (ins->dreg != ins->sreg1)
2823 s390_lr (code, ins->dreg, ins->sreg1);
2824 s390_sll (code, ins->dreg, 0, 24);
2825 s390_sra (code, ins->dreg, 0, 24);
2826 }
2827 break;
2828 case OP_ICONV_TO_I2: {
2829 if (ins->dreg != ins->sreg1)
2830 s390_lr (code, ins->dreg, ins->sreg1);
2831 s390_sll (code, ins->dreg, 0, 16);
2832 s390_sra (code, ins->dreg, 0, 16);
2833 }
2834 break;
2835 case OP_ICONV_TO_U1: {
2836 s390_lhi (code, s390_r0, 0xff);
2837 if (ins->dreg != ins->sreg1) {
2838 s390_lr (code, ins->dreg, ins->sreg1);
2839 }
2840 s390_nr (code, ins->dreg, s390_r0);
2841 }
2842 break;
2843 case OP_ICONV_TO_U2: {
2844 s390_lhi (code, s390_r0, -1);
2845 s390_sll (code, s390_r0, 0, 16);
2846 s390_srl (code, s390_r0, 0, 16);
2847 if (ins->dreg != ins->sreg1) {
2848 s390_lr (code, ins->dreg, ins->sreg1);
2849 }
2850 s390_nr (code, ins->dreg, s390_r0);
2851 }
2852 break;
2853 case OP_COMPARE:
2854 case OP_ICOMPARE: {
2855 gboolean un = FALSE;
2856 MonoInst *next = ins->next;
2857
2858 if ((next) &&
2859 (((next->opcode >= OP_IBNE_UN) &&
2860 (next->opcode <= OP_IBLT_UN)) ||
2861 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2862 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2863 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2864 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2865 ((next->opcode == OP_CLT_UN) ||
2866 (next->opcode == OP_CGT_UN)) ||
2867 ((next->opcode == OP_ICLT_UN) ||
2868 (next->opcode == OP_ICGT_UN))))
2869 un = TRUE;
2870
2871 if (un)
2872 s390_clr (code, ins->sreg1, ins->sreg2);
2873 else
2874 s390_cr (code, ins->sreg1, ins->sreg2);
2875 }
2876 break;
2877 case OP_COMPARE_IMM:
2878 case OP_ICOMPARE_IMM: {
2879 gboolean un = FALSE;
2880 MonoInst *next = ins->next;
2881
2882 if ((next) &&
2883 (((next->opcode >= OP_IBNE_UN) &&
2884 (next->opcode <= OP_IBLT_UN)) ||
2885 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2886 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2887 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2888 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2889 ((next->opcode == OP_CLT_UN) ||
2890 (next->opcode == OP_CGT_UN)) ||
2891 ((next->opcode == OP_ICLT_UN) ||
2892 (next->opcode == OP_ICGT_UN))))
2893 un = TRUE;
2894
2895 if (s390_is_imm16 (ins->inst_imm)) {
2896 s390_lhi (code, s390_r0, ins->inst_imm);
2897 if (un)
2898 s390_clr (code, ins->sreg1, s390_r0);
2899 else
2900 s390_cr (code, ins->sreg1, s390_r0);
2901 }
2902 else {
2903 s390_basr (code, s390_r13, 0);
2904 s390_j (code, 4);
2905 s390_word (code, ins->inst_imm);
2906 if (un)
2907 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2908 else
2909 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2910 }
2911 }
2912 break;
2913 case OP_BREAK: {
2914 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_break);
2915 s390_brasl (code, s390_r14, 0);
2916 }
2917 break;
2918 case OP_ADDCC:
2919 case OP_IADDCC: {
2920 CHECK_SRCDST_COM;
2921 s390_alr (code, ins->dreg, src2);
2922 }
2923 break;
2924 case OP_IADD: {
2925 CHECK_SRCDST_COM;
2926 s390_ar (code, ins->dreg, src2);
2927 }
2928 break;
2929 case OP_ADC:
2930 case OP_IADC: {
2931 CHECK_SRCDST_COM;
2932 s390_alcr (code, ins->dreg, src2);
2933 }
2934 break;
2935 case OP_ADD_IMM:
2936 case OP_IADD_IMM: {
2937 if (ins->dreg != ins->sreg1) {
2938 s390_lr (code, ins->dreg, ins->sreg1);
2939 }
2940 if ((ins->next) &&
2941 (ins->next->opcode == OP_ADC_IMM)) {
2942 s390_basr (code, s390_r13, 0);
2943 s390_j (code, 4);
2944 s390_word (code, ins->inst_imm);
2945 s390_a (code, ins->dreg, 0, s390_r13, 4);
2946 } else {
2947 if (s390_is_imm16 (ins->inst_imm)) {
2948 s390_ahi (code, ins->dreg, ins->inst_imm);
2949 } else {
2950 s390_basr (code, s390_r13, 0);
2951 s390_j (code, 4);
2952 s390_word (code, ins->inst_imm);
2953 s390_a (code, ins->dreg, 0, s390_r13, 4);
2954 }
2955 }
2956 }
2957 break;
2958 case OP_ADDCC_IMM: {
2959 if ((ins->next) &&
2960 (ins->next->opcode == OP_ADC_IMM)) {
2961 s390_basr (code, s390_r13, 0);
2962 s390_j (code, 4);
2963 s390_word (code, ins->inst_imm);
2964 if (ins->dreg != ins->sreg1) {
2965 s390_lr (code, ins->dreg, ins->sreg1);
2966 }
2967 s390_al (code, ins->dreg, 0, s390_r13, 4);
2968 } else {
2969 if (s390_is_imm16 (ins->inst_imm)) {
2970 if (ins->dreg != ins->sreg1) {
2971 s390_lr (code, ins->dreg, ins->sreg1);
2972 }
2973 s390_lhi (code, s390_r0, ins->inst_imm);
2974 s390_alcr (code, ins->dreg, s390_r0);
2975 } else {
2976 s390_basr (code, s390_r13, 0);
2977 s390_j (code, 4);
2978 s390_word (code, ins->inst_imm);
2979 if (ins->dreg != ins->sreg1) {
2980 s390_lr (code, ins->dreg, ins->sreg1);
2981 }
2982 s390_al (code, ins->dreg, 0, s390_r13, 4);
2983 }
2984 }
2985 }
2986 break;
2987 case OP_ADC_IMM: {
2988 if (s390_is_imm16 (ins->inst_imm)) {
2989 if (ins->dreg != ins->sreg1) {
2990 s390_lr (code, ins->dreg, ins->sreg1);
2991 }
2992 s390_lhi (code, s390_r0, ins->inst_imm);
2993 s390_alcr (code, ins->dreg, s390_r0);
2994 } else {
2995 s390_basr (code, s390_r13, 0);
2996 s390_j (code, 4);
2997 s390_word (code, ins->inst_imm);
2998 s390_l (code, s390_r13, 0, s390_r13, 4);
2999 s390_alcr (code, ins->dreg, s390_r13);
3000 }
3001 }
3002 break;
3003 case OP_IADD_OVF:
3004 case OP_S390_IADD_OVF: {
3005 CHECK_SRCDST_COM;
3006 s390_ar (code, ins->dreg, src2);
3007 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3008 }
3009 break;
3010 case OP_IADD_OVF_UN:
3011 case OP_S390_IADD_OVF_UN: {
3012 CHECK_SRCDST_COM;
3013 s390_alr (code, ins->dreg, src2);
3014 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3015 }
3016 break;
3017 case OP_LADD:
3018 case OP_S390_LADD: {
3019 s390_alr (code, s390_r0, ins->sreg1);
3020 s390_jnc (code, 4);
3021 s390_ahi (code, s390_r1, 1);
3022 s390_ar (code, s390_r1, ins->sreg2);
3023 s390_lr (code, ins->dreg, s390_r0);
3024 s390_lr (code, ins->dreg+1, s390_r1);
3025 }
3026 break;
3027 case OP_LADD_OVF:
3028 case OP_S390_LADD_OVF: {
3029 short int *o[1];
3030 s390_alr (code, s390_r0, ins->sreg1);
3031 s390_jnc (code, 0); CODEPTR(code, o[0]);
3032 s390_ahi (code, s390_r1, 1);
3033 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3034 PTRSLOT (code, o[0]);
3035 s390_ar (code, s390_r1, ins->sreg2);
3036 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3037 s390_lr (code, ins->dreg, s390_r0);
3038 s390_lr (code, ins->dreg+1, s390_r1);
3039 }
3040 break;
3041 case OP_LADD_OVF_UN:
3042 case OP_S390_LADD_OVF_UN: {
3043 s390_alr (code, s390_r0, ins->sreg1);
3044 s390_alcr (code, s390_r1, ins->sreg2);
3045 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3046 s390_lr (code, ins->dreg, s390_r0);
3047 s390_lr (code, ins->dreg+1, s390_r1);
3048 }
3049 break;
3050 case OP_ADD_OVF_CARRY: {
3051 CHECK_SRCDST_COM;
3052 s390_lhi (code, s390_r0, 0);
3053 s390_lr (code, s390_r1, s390_r0);
3054 s390_alcr (code, s390_r0, s390_r1);
3055 s390_ar (code, ins->dreg, src2);
3056 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3057 s390_ar (code, ins->dreg, s390_r0);
3058 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3059 }
3060 break;
3061 case OP_ADD_OVF_UN_CARRY: {
3062 CHECK_SRCDST_COM;
3063 s390_alcr (code, ins->dreg, src2);
3064 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3065 }
3066 break;
3067 case OP_SUBCC:
3068 case OP_ISUBCC: {
3069 CHECK_SRCDST_NCOM;
3070 s390_slr (code, ins->dreg, src2);
3071 }
3072 break;
3073 case OP_ISUB: {
3074 CHECK_SRCDST_NCOM;
3075 s390_sr (code, ins->dreg, src2);
3076 }
3077 break;
3078 case OP_SBB:
3079 case OP_ISBB: {
3080 CHECK_SRCDST_NCOM;
3081 s390_slbr (code, ins->dreg, src2);
3082 }
3083 break;
3084 case OP_SUBCC_IMM: {
3085 if (s390_is_imm16 (-ins->inst_imm)) {
3086 if (ins->dreg != ins->sreg1) {
3087 s390_lr (code, ins->dreg, ins->sreg1);
3088 }
3089 s390_lhi (code, s390_r0, ins->inst_imm);
3090 s390_slr (code, ins->dreg, s390_r0);
3091 } else {
3092 s390_basr (code, s390_r13, 0);
3093 s390_j (code, 4);
3094 s390_word (code, ins->inst_imm);
3095 if (ins->dreg != ins->sreg1) {
3096 s390_lr (code, ins->dreg, ins->sreg1);
3097 }
3098 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3099 }
3100 }
3101 break;
3102 case OP_SUB_IMM:
3103 case OP_ISUB_IMM: {
3104 if (s390_is_imm16 (-ins->inst_imm)) {
3105 if (ins->dreg != ins->sreg1) {
3106 s390_lr (code, ins->dreg, ins->sreg1);
3107 }
3108 s390_ahi (code, ins->dreg, -ins->inst_imm);
3109 } else {
3110 s390_basr (code, s390_r13, 0);
3111 s390_j (code, 4);
3112 s390_word (code, ins->inst_imm);
3113 if (ins->dreg != ins->sreg1) {
3114 s390_lr (code, ins->dreg, ins->sreg1);
3115 }
3116 s390_s (code, ins->dreg, 0, s390_r13, 4);
3117 }
3118 }
3119 break;
3120 case OP_SBB_IMM: {
3121 if (ins->dreg != ins->sreg1) {
3122 s390_lr (code, ins->dreg, ins->sreg1);
3123 }
3124 if (s390_is_imm16 (-ins->inst_imm)) {
3125 s390_lhi (code, s390_r0, ins->inst_imm);
3126 s390_slbr (code, ins->dreg, s390_r0);
3127 } else {
3128 s390_basr (code, s390_r13, 0);
3129 s390_j (code, 4);
3130 s390_word (code, ins->inst_imm);
3131 s390_slb (code, ins->dreg, 0, s390_r13, 4);
3132 }
3133 }
3134 break;
3135 case OP_ISUB_OVF:
3136 case OP_S390_ISUB_OVF: {
3137 CHECK_SRCDST_NCOM;
3138 s390_sr (code, ins->dreg, src2);
3139 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3140 }
3141 break;
3142 case OP_ISUB_OVF_UN:
3143 case OP_S390_ISUB_OVF_UN: {
3144 CHECK_SRCDST_NCOM;
3145 s390_slr (code, ins->dreg, src2);
3146 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3147 }
3148 break;
3149 case OP_LSUB:
3150 case OP_S390_LSUB: {
3151 s390_lr (code, s390_r14, ins->sreg2);
3152 s390_slr (code, s390_r0, ins->sreg1);
3153 s390_jnl (code, 4);
3154 s390_ahi (code, s390_r14, 1);
3155 s390_sr (code, s390_r1, s390_r14);
3156 s390_lr (code, ins->dreg, s390_r0);
3157 s390_lr (code, ins->dreg+1, s390_r1);
3158 }
3159 break;
3160 case OP_LSUB_OVF:
3161 case OP_S390_LSUB_OVF: {
3162 short int *o[1];
3163 s390_lr (code, s390_r14, ins->sreg2);
3164 s390_slr (code, s390_r0, ins->sreg1);
3165 s390_jnl (code, 0); CODEPTR(code, o[0]);
3166 s390_ahi (code, s390_r14, 1);
3167 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3168 PTRSLOT (code, o[0]);
3169 s390_sr (code, s390_r1, s390_r14);
3170 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3171 s390_lr (code, ins->dreg, s390_r0);
3172 s390_lr (code, ins->dreg+1, s390_r1);
3173 }
3174 break;
3175 case OP_LSUB_OVF_UN:
3176 case OP_S390_LSUB_OVF_UN: {
3177 s390_slr (code, s390_r0, ins->sreg1);
3178 s390_slbr (code, s390_r1, ins->sreg2);
3179 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3180 s390_lr (code, ins->dreg, s390_r0);
3181 s390_lr (code, ins->dreg+1, s390_r1);
3182 }
3183 break;
3184 case OP_SUB_OVF_CARRY: {
3185 CHECK_SRCDST_NCOM;
3186 s390_lhi (code, s390_r0, 0);
3187 s390_lr (code, s390_r1, s390_r0);
3188 s390_slbr (code, s390_r0, s390_r1);
3189 s390_sr (code, ins->dreg, src2);
3190 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3191 s390_ar (code, ins->dreg, s390_r0);
3192 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3193 }
3194 break;
3195 case OP_SUB_OVF_UN_CARRY: {
3196 CHECK_SRCDST_NCOM;
3197 s390_slbr (code, ins->dreg, src2);
3198 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3199 }
3200 break;
3201 case OP_IAND: {
3202 if (ins->sreg1 == ins->dreg) {
3203 s390_nr (code, ins->dreg, ins->sreg2);
3204 }
3205 else {
3206 if (ins->sreg2 == ins->dreg) {
3207 s390_nr (code, ins->dreg, ins->sreg1);
3208 }
3209 else {
3210 s390_lr (code, ins->dreg, ins->sreg1);
3211 s390_nr (code, ins->dreg, ins->sreg2);
3212 }
3213 }
3214 }
3215 break;
3216 case OP_AND_IMM:
3217 case OP_IAND_IMM: {
3218 if (s390_is_imm16 (ins->inst_imm)) {
3219 s390_lhi (code, s390_r0, ins->inst_imm);
3220 if (ins->dreg != ins->sreg1) {
3221 s390_lr (code, ins->dreg, ins->sreg1);
3222 }
3223 s390_nr (code, ins->dreg, s390_r0);
3224 } else {
3225 s390_basr (code, s390_r13, 0);
3226 s390_j (code, 4);
3227 s390_word (code, ins->inst_imm);
3228 if (ins->dreg != ins->sreg1) {
3229 s390_lr (code, ins->dreg, ins->sreg1);
3230 }
3231 s390_n (code, ins->dreg, 0, s390_r13, 4);
3232 }
3233 }
3234 break;
3235 case OP_IDIV: {
3236 s390_lr (code, s390_r0, ins->sreg1);
3237 s390_srda (code, s390_r0, 0, 32);
3238 s390_dr (code, s390_r0, ins->sreg2);
3239 s390_lr (code, ins->dreg, s390_r1);
3240 }
3241 break;
3242 case OP_IDIV_UN: {
3243 s390_lr (code, s390_r0, ins->sreg1);
3244 s390_srdl (code, s390_r0, 0, 32);
3245 s390_dlr (code, s390_r0, ins->sreg2);
3246 s390_lr (code, ins->dreg, s390_r1);
3247 }
3248 break;
3249 case OP_IREM: {
3250 s390_lr (code, s390_r0, ins->sreg1);
3251 s390_srda (code, s390_r0, 0, 32);
3252 s390_dr (code, s390_r0, ins->sreg2);
3253 s390_lr (code, ins->dreg, s390_r0);
3254 break;
3255 case OP_IREM_UN:
3256 s390_lr (code, s390_r0, ins->sreg1);
3257 s390_srdl (code, s390_r0, 0, 32);
3258 s390_dlr (code, s390_r0, ins->sreg2);
3259 s390_lr (code, ins->dreg, s390_r0);
3260 }
3261 break;
3262 case OP_IOR: {
3263 if (ins->sreg1 == ins->dreg) {
3264 s390_or (code, ins->dreg, ins->sreg2);
3265 }
3266 else {
3267 if (ins->sreg2 == ins->dreg) {
3268 s390_or (code, ins->dreg, ins->sreg1);
3269 }
3270 else {
3271 s390_lr (code, ins->dreg, ins->sreg1);
3272 s390_or (code, ins->dreg, ins->sreg2);
3273 }
3274 }
3275 }
3276 break;
3277 case OP_OR_IMM:
3278 case OP_IOR_IMM: {
3279 if (s390_is_imm16 (ins->inst_imm)) {
3280 s390_lhi (code, s390_r0, ins->inst_imm);
3281 if (ins->dreg != ins->sreg1) {
3282 s390_lr (code, ins->dreg, ins->sreg1);
3283 }
3284 s390_or (code, ins->dreg, s390_r0);
3285 } else {
3286 s390_basr (code, s390_r13, 0);
3287 s390_j (code, 4);
3288 s390_word (code, ins->inst_imm);
3289 if (ins->dreg != ins->sreg1) {
3290 s390_lr (code, ins->dreg, ins->sreg1);
3291 }
3292 s390_o (code, ins->dreg, 0, s390_r13, 4);
3293 }
3294 }
3295 break;
3296 case OP_IXOR: {
3297 if (ins->sreg1 == ins->dreg) {
3298 s390_xr (code, ins->dreg, ins->sreg2);
3299 }
3300 else {
3301 if (ins->sreg2 == ins->dreg) {
3302 s390_xr (code, ins->dreg, ins->sreg1);
3303 }
3304 else {
3305 s390_lr (code, ins->dreg, ins->sreg1);
3306 s390_xr (code, ins->dreg, ins->sreg2);
3307 }
3308 }
3309 }
3310 break;
3311 case OP_XOR_IMM:
3312 case OP_IXOR_IMM: {
3313 if (s390_is_imm16 (ins->inst_imm)) {
3314 s390_lhi (code, s390_r0, ins->inst_imm);
3315 if (ins->dreg != ins->sreg1) {
3316 s390_lr (code, ins->dreg, ins->sreg1);
3317 }
3318 s390_xr (code, ins->dreg, s390_r0);
3319 } else {
3320 s390_basr (code, s390_r13, 0);
3321 s390_j (code, 4);
3322 s390_word (code, ins->inst_imm);
3323 if (ins->dreg != ins->sreg1) {
3324 s390_lr (code, ins->dreg, ins->sreg1);
3325 }
3326 s390_x (code, ins->dreg, 0, s390_r13, 4);
3327 }
3328 }
3329 break;
3330 case OP_ISHL: {
3331 CHECK_SRCDST_NCOM;
3332 s390_sll (code, ins->dreg, src2, 0);
3333 }
3334 break;
3335 case OP_SHL_IMM:
3336 case OP_ISHL_IMM: {
3337 if (ins->sreg1 != ins->dreg) {
3338 s390_lr (code, ins->dreg, ins->sreg1);
3339 }
3340 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3341 }
3342 break;
3343 case OP_ISHR: {
3344 CHECK_SRCDST_NCOM;
3345 s390_sra (code, ins->dreg, src2, 0);
3346 }
3347 break;
3348 case OP_SHR_IMM:
3349 case OP_ISHR_IMM: {
3350 if (ins->sreg1 != ins->dreg) {
3351 s390_lr (code, ins->dreg, ins->sreg1);
3352 }
3353 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3354 }
3355 break;
3356 case OP_SHR_UN_IMM:
3357 case OP_ISHR_UN_IMM: {
3358 if (ins->sreg1 != ins->dreg) {
3359 s390_lr (code, ins->dreg, ins->sreg1);
3360 }
3361 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3362 }
3363 break;
3364 case OP_ISHR_UN: {
3365 CHECK_SRCDST_NCOM;
3366 s390_srl (code, ins->dreg, src2, 0);
3367 }
3368 break;
3369 case OP_INOT: {
3370 if (ins->sreg1 != ins->dreg) {
3371 s390_lr (code, ins->dreg, ins->sreg1);
3372 }
3373 s390_lhi (code, s390_r0, -1);
3374 s390_xr (code, ins->dreg, s390_r0);
3375 }
3376 break;
3377 case OP_INEG: {
3378 s390_lcr (code, ins->dreg, ins->sreg1);
3379 }
3380 break;
3381 case OP_S390_LNEG: {
3382 /* From gcc code */
3383 g_assert (ins->dreg + 1 != ins->sreg1);
3384 s390_lcr (code, ins->dreg + 1, ins->sreg2);
3385 s390_lcr (code, ins->dreg, ins->sreg1);
3386 s390_je (code, 3);
3387 s390_bctr (code, ins->dreg + 1, 0);
3388 }
3389 break;
3390 case OP_IMUL: {
3391 if (ins->sreg1 == ins->dreg) {
3392 s390_msr (code, ins->dreg, ins->sreg2);
3393 }
3394 else {
3395 if (ins->sreg2 == ins->dreg) {
3396 s390_msr (code, ins->dreg, ins->sreg1);
3397 }
3398 else {
3399 s390_lr (code, ins->dreg, ins->sreg1);
3400 s390_msr (code, ins->dreg, ins->sreg2);
3401 }
3402 }
3403 }
3404 break;
3405 case OP_MUL_IMM:
3406 case OP_IMUL_IMM: {
3407 if (s390_is_imm16 (ins->inst_imm)) {
3408 s390_lhi (code, s390_r13, ins->inst_imm);
3409 } else {
3410 s390_basr (code, s390_r13, 0);
3411 s390_j (code, 4);
3412 s390_word (code, ins->inst_imm);
3413 // if (ins->dreg != ins->sreg1) {
3414 // s390_lr (code, ins->dreg, ins->sreg1);
3415 // }
3416 s390_l (code, s390_r13, 0, s390_r13, 4);
3417 }
3418 if (ins->dreg != ins->sreg1) {
3419 s390_lr (code, ins->dreg, ins->sreg1);
3420 }
3421 s390_msr (code, ins->dreg, s390_r13);
3422 }
3423 break;
3424 case OP_IMUL_OVF: {
3425 short int *o[2];
3426 s390_ltr (code, s390_r1, ins->sreg1);
3427 s390_jz (code, 0); CODEPTR(code, o[0]);
3428 s390_ltr (code, s390_r0, ins->sreg2);
3429 s390_jnz (code, 6);
3430 s390_lhi (code, s390_r1, 0);
3431 s390_j (code, 0); CODEPTR(code, o[1]);
3432 s390_xr (code, s390_r0, s390_r1);
3433 s390_msr (code, s390_r1, ins->sreg2);
3434 s390_xr (code, s390_r0, s390_r1);
3435 s390_srl (code, s390_r0, 0, 31);
3436 s390_ltr (code, s390_r0, s390_r0);
3437 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3438 PTRSLOT (code, o[0]);
3439 PTRSLOT (code, o[1]);
3440 s390_lr (code, ins->dreg, s390_r1);
3441 }
3442 break;
3443 case OP_IMUL_OVF_UN: {
3444 s390_lhi (code, s390_r0, 0);
3445 s390_lr (code, s390_r1, ins->sreg1);
3446 s390_mlr (code, s390_r0, ins->sreg2);
3447 s390_ltr (code, s390_r0, s390_r0);
3448 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3449 s390_lr (code, ins->dreg, s390_r1);
3450 }
3451 break;
3452 case OP_LMUL: {
3453 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3454 s390_srda (code, s390_r0, 0, 32);
3455 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3456 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3457 s390_srl (code, s390_r0, 0, 31);
3458 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3459 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3460 s390_srl (code, s390_r13, 0, 31);
3461 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3462 s390_ar (code, s390_r0, s390_r13);
3463 s390_st (code, s390_r0, 0, ins->dreg, 0);
3464 s390_st (code, s390_r1, 0, ins->dreg, 4);
3465 }
3466 break;
3467 case OP_ICONST: {
3468 if (s390_is_imm16(ins->inst_c0)) {
3469 s390_lhi (code, ins->dreg, ins->inst_c0);
3470 } else {
3471 s390_basr (code, s390_r13, 0);
3472 s390_j (code, 4);
3473 s390_word (code, ins->inst_c0);
3474 s390_l (code, ins->dreg, 0, s390_r13, 4);
3475 }
3476 }
3477 break;
3478 case OP_AOTCONST: {
3479 s390_basr (code, s390_r13, 0);
3480 s390_j (code, 4);
3481 mono_add_patch_info (cfg, code - cfg->native_code,
3482 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3483 s390_word (code, 0);
3484 s390_l (code,ins->dreg, 0, s390_r13, 4);
3485 }
3486 break;
3487 case OP_JUMP_TABLE: {
3488 mono_add_patch_info (cfg, code - cfg->native_code,
3489 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3490 s390_basr (code, s390_r13, 0);
3491 s390_j (code, 4);
3492 s390_word (code, 0);
3493 s390_l (code, ins->dreg, 0, s390_r13, 4);
3494 }
3495 break;
3496 case OP_ICONV_TO_I4:
3497 case OP_ICONV_TO_U4:
3498 case OP_MOVE: {
3499 if (ins->dreg != ins->sreg1) {
3500 s390_lr (code, ins->dreg, ins->sreg1);
3501 }
3502 }
3503 break;
3504 case OP_SETLRET: {
3505 int saved = ins->sreg1;
3506 if (ins->sreg1 == s390_r2) {
3507 s390_lr (code, s390_r0, ins->sreg1);
3508 saved = s390_r0;
3509 }
3510 if (ins->sreg2 != s390_r2)
3511 s390_lr (code, s390_r2, ins->sreg2);
3512 if (saved != s390_r3)
3513 s390_lr (code, s390_r3, saved);
3514 break;
3515 }
3516 case OP_FMOVE: {
3517 if (ins->dreg != ins->sreg1) {
3518 s390_ldr (code, ins->dreg, ins->sreg1);
3519 }
3520 }
3521 break;
3522 case OP_S390_SETF4RET: {
3523 s390_ledbr (code, ins->dreg, ins->sreg1);
3524 }
3525 break;
3526 case OP_TLS_GET: {
3527 if (s390_is_imm16 (ins->inst_offset)) {
3528 s390_lhi (code, s390_r13, ins->inst_offset);
3529 } else {
3530 s390_bras (code, s390_r13, 0);
3531 s390_j (code, 4);
3532 s390_word (code, ins->inst_offset);
3533 s390_l (code, s390_r13, 0, s390_r13, 4);
3534 }
3535 s390_ear (code, s390_r1, 0);
3536 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
3537 }
3538 break;
3539 case OP_FCONV_TO_R4: {
3540 // FIXME:
3541 if (ins->dreg != ins->sreg1) {
3542 s390_ldr (code, ins->dreg, ins->sreg1);
3543 }
3544 /*
3545 NOT_IMPLEMENTED;
3546 if ((ins->next) &&
3547 (ins->next->opcode != OP_FMOVE) &&
3548 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3549 s390_ledbr (code, ins->dreg, ins->sreg1);
3550 */
3551 }
3552 break;
3553 case OP_JMP: {
3554 if (cfg->method->save_lmf)
3555 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3556
3557 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3558 code = emit_load_volatile_registers(code, cfg);
3559 }
3560
3561 code = backUpStackPtr(cfg, code, STK_BASE);
3562 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3563 mono_add_patch_info (cfg, code - cfg->native_code,
3564 MONO_PATCH_INFO_METHOD_JUMP,
3565 ins->inst_p0);
3566 s390_jcl (code, S390_CC_UN, 0);
3567 }
3568 break;
3569 case OP_CHECK_THIS: {
3570 /* ensure ins->sreg1 is not NULL */
3571 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3572 }
3573 break;
3574 case OP_ARGLIST: {
3575 int offset = cfg->sig_cookie + cfg->stack_usage;
3576
3577 if (s390_is_imm16 (offset))
3578 s390_lhi (code, s390_r0, offset);
3579 else {
3580 s390_basr (code, s390_r13, 0);
3581 s390_j (code, 4);
3582 s390_word (code, offset);
3583 s390_l (code, s390_r0, 0, s390_r13, 0);
3584 }
3585 s390_ar (code, s390_r0, cfg->frame_reg);
3586 s390_st (code, s390_r0, 0, ins->sreg1, 0);
3587 }
3588 break;
3589 case OP_FCALL: {
3590 call = (MonoCallInst*)ins;
3591 if (ins->flags & MONO_INST_HAS_METHOD)
3592 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3593 call->method);
3594 else
3595 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3596 call->fptr);
3597 s390_brasl (code, s390_r14, 0);
3598 if (call->signature->ret->type == MONO_TYPE_R4)
3599 s390_ldebr (code, s390_f0, s390_f0);
3600 }
3601 break;
3602 case OP_LCALL:
3603 case OP_VCALL:
3604 case OP_VCALL2:
3605 case OP_VOIDCALL:
3606 case OP_CALL: {
3607 call = (MonoCallInst*)ins;
3608 if (ins->flags & MONO_INST_HAS_METHOD)
3609 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3610 else
3611 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3612 s390_brasl (code, s390_r14, 0);
3613 }
3614 break;
3615 case OP_FCALL_REG: {
3616 call = (MonoCallInst*)ins;
3617 s390_lr (code, s390_r1, ins->sreg1);
3618 s390_basr (code, s390_r14, s390_r1);
3619 if (call->signature->ret->type == MONO_TYPE_R4)
3620 s390_ldebr (code, s390_f0, s390_f0);
3621 }
3622 break;
3623 case OP_LCALL_REG:
3624 case OP_VCALL_REG:
3625 case OP_VCALL2_REG:
3626 case OP_VOIDCALL_REG:
3627 case OP_CALL_REG: {
3628 s390_lr (code, s390_r1, ins->sreg1);
3629 s390_basr (code, s390_r14, s390_r1);
3630 }
3631 break;
3632 case OP_LCALL_MEMBASE:
3633 case OP_VCALL_MEMBASE:
3634 case OP_VCALL2_MEMBASE:
3635 case OP_VOIDCALL_MEMBASE:
3636 case OP_FCALL_MEMBASE:
3637 case OP_CALL_MEMBASE: {
3638 call = (MonoCallInst*)ins;
3639 if (s390_is_uimm12(ins->inst_offset))
3640 s390_l (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3641 else {
3642 if (s390_is_imm16(ins->inst_offset)) {
3643 s390_lhi (code, s390_r13, ins->inst_offset);
3644 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3645 } else {
3646 s390_basr (code, s390_r13, 0);
3647 s390_j (code, 4);
3648 s390_word (code, ins->inst_offset);
3649 s390_l (code, s390_r13, 0, s390_r13, 4);
3650 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3651 }
3652 }
3653 s390_basr (code, s390_r14, s390_r1);
3654 if (ins->opcode == OP_FCALL_MEMBASE && call->signature->ret->type == MONO_TYPE_R4)
3655 s390_ldebr (code, s390_f0, s390_f0);
3656 }
3657 break;
3658 case OP_LOCALLOC: {
3659 /*------------------------------------------*/
3660 /* To allocate space on the stack we have */
3661 /* to allow room for parameters passed in */
3662 /* calls, the backchain pointer and round */
3663 /* it to our stack alignment requirements */
3664 /*------------------------------------------*/
3665 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3666 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3667 s390_lr (code, s390_r1, ins->sreg1);
3668 if (ins->flags & MONO_INST_INIT)
3669 s390_lr (code, s390_r0, ins->sreg1);
3670 s390_ahi (code, s390_r1, 14);
3671 s390_srl (code, s390_r1, 0, 3);
3672 s390_sll (code, s390_r1, 0, 3);
3673 if (cfg->method->save_lmf) {
3674 /*----------------------------------*/
3675 /* we have to adjust lmf ebp value */
3676 /*----------------------------------*/
3677 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3678
3679 s390_lr (code, s390_r13, cfg->frame_reg);
3680 if (s390_is_uimm16(lmfOffset))
3681 s390_ahi (code, s390_r13, lmfOffset);
3682 else {
3683 s390_basr (code, s390_r14, 0);
3684 s390_j (code, 4);
3685 s390_word (code, lmfOffset);
3686 s390_a (code, s390_r13, 0, s390_r14, 4);
3687 }
3688 s390_lr (code, s390_r14, STK_BASE);
3689 s390_sr (code, s390_r14, s390_r1);
3690 s390_st (code, s390_r14, 0, s390_r13,
3691 G_STRUCT_OFFSET(MonoLMF, ebp));
3692 }
3693 s390_l (code, s390_r13, 0, STK_BASE, 0);
3694 s390_sr (code, STK_BASE, s390_r1);
3695 s390_st (code, s390_r13, 0, STK_BASE, 0);
3696 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3697 s390_srl (code, ins->dreg, 0, 3);
3698 s390_sll (code, ins->dreg, 0, 3);
3699 if (ins->flags & MONO_INST_INIT) {
3700 s390_lr (code, s390_r1, s390_r0);
3701 s390_lr (code, s390_r0, ins->dreg);
3702 s390_lr (code, s390_r14, s390_r12);
3703 s390_lhi (code, s390_r13, 0);
3704 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3705 s390_jo (code, -2);
3706 s390_lr (code, s390_r12, s390_r14);
3707 }
3708 }
3709 break;
3710 case OP_THROW: {
3711 s390_lr (code, s390_r2, ins->sreg1);
3712 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3713 (gpointer)"mono_arch_throw_exception");
3714 s390_brasl (code, s390_r14, 0);
3715 }
3716 break;
3717 case OP_RETHROW: {
3718 s390_lr (code, s390_r2, ins->sreg1);
3719 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3720 (gpointer)"mono_arch_rethrow_exception");
3721 s390_brasl (code, s390_r14, 0);
3722 }
3723 break;
3724 case OP_START_HANDLER: {
3725 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3726 if (s390_is_uimm12 (spvar->inst_offset)) {
3727 s390_st (code, s390_r14, 0,
3728 spvar->inst_basereg,
3729 spvar->inst_offset);
3730 } else {
3731 s390_basr (code, s390_r13, 0);
3732 s390_j (code, 4);
3733 s390_word (code, spvar->inst_offset);
3734 s390_l (code, s390_r13, 0, s390_r13, 4);
3735 s390_st (code, s390_r14, s390_r13,
3736 spvar->inst_basereg, 0);
3737 }
3738 }
3739 break;
3740 case OP_ENDFILTER: {
3741 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3742 if (ins->sreg1 != s390_r2)
3743 s390_lr (code, s390_r2, ins->sreg1);
3744 if (s390_is_uimm12 (spvar->inst_offset)) {
3745 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3746 spvar->inst_offset);
3747 } else {
3748 s390_basr (code, s390_r13, 0);
3749 s390_j (code, 4);
3750 s390_word (code, spvar->inst_offset);
3751 s390_l (code, s390_r13, 0, s390_r13, 4);
3752 s390_l (code, s390_r14, s390_r13,
3753 spvar->inst_basereg, 0);
3754 }
3755 s390_br (code, s390_r14);
3756 }
3757 break;
3758 case OP_ENDFINALLY: {
3759 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3760 if (s390_is_uimm12 (spvar->inst_offset)) {
3761 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3762 spvar->inst_offset);
3763 } else {
3764 s390_basr (code, s390_r13, 0);
3765 s390_j (code, 4);
3766 s390_word (code, spvar->inst_offset);
3767 s390_l (code, s390_r13, 0, s390_r13, 4);
3768 s390_l (code, s390_r14, s390_r13,
3769 spvar->inst_basereg, 0);
3770 }
3771 s390_br (code, s390_r14);
3772 }
3773 break;
3774 case OP_CALL_HANDLER: {
3775 mono_add_patch_info (cfg, code-cfg->native_code,
3776 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3777 s390_brasl (code, s390_r14, 0);
3778 mono_cfg_add_try_hole (cfg, ins->inst_eh_block, code, bb);
3779 }
3780 break;
3781 case OP_LABEL: {
3782 ins->inst_c0 = code - cfg->native_code;
3783 }
3784 break;
3785 case OP_RELAXED_NOP:
3786 case OP_NOP:
3787 case OP_DUMMY_USE:
3788 case OP_DUMMY_STORE:
3789 case OP_NOT_REACHED:
3790 case OP_NOT_NULL: {
3791 }
3792 break;
3793 case OP_BR:
3794 EMIT_UNCOND_BRANCH(ins);
3795 break;
3796 case OP_BR_REG: {
3797 s390_br (code, ins->sreg1);
3798 }
3799 break;
3800 case OP_CEQ:
3801 case OP_ICEQ: {
3802 s390_lhi (code, ins->dreg, 1);
3803 s390_jz (code, 4);
3804 s390_lhi (code, ins->dreg, 0);
3805 }
3806 break;
3807 case OP_CLT:
3808 case OP_ICLT: {
3809 s390_lhi (code, ins->dreg, 1);
3810 s390_jl (code, 4);
3811 s390_lhi (code, ins->dreg, 0);
3812 }
3813 break;
3814 case OP_CLT_UN:
3815 case OP_ICLT_UN: {
3816 s390_lhi (code, ins->dreg, 1);
3817 s390_jlo (code, 4);
3818 s390_lhi (code, ins->dreg, 0);
3819 }
3820 break;
3821 case OP_CGT:
3822 case OP_ICGT: {
3823 s390_lhi (code, ins->dreg, 1);
3824 s390_jh (code, 4);
3825 s390_lhi (code, ins->dreg, 0);
3826 }
3827 break;
3828 case OP_CGT_UN:
3829 case OP_ICGT_UN: {
3830 s390_lhi (code, ins->dreg, 1);
3831 s390_jho (code, 4);
3832 s390_lhi (code, ins->dreg, 0);
3833 }
3834 break;
3835 case OP_COND_EXC_EQ:
3836 case OP_COND_EXC_IEQ:
3837 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3838 break;
3839 case OP_COND_EXC_NE_UN:
3840 case OP_COND_EXC_INE_UN:
3841 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3842 break;
3843 case OP_COND_EXC_LT:
3844 case OP_COND_EXC_ILT:
3845 case OP_COND_EXC_LT_UN:
3846 case OP_COND_EXC_ILT_UN:
3847 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3848 break;
3849 case OP_COND_EXC_GT:
3850 case OP_COND_EXC_IGT:
3851 case OP_COND_EXC_GT_UN:
3852 case OP_COND_EXC_IGT_UN:
3853 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3854 break;
3855 case OP_COND_EXC_GE:
3856 case OP_COND_EXC_IGE:
3857 case OP_COND_EXC_GE_UN:
3858 case OP_COND_EXC_IGE_UN:
3859 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3860 break;
3861 case OP_COND_EXC_LE:
3862 case OP_COND_EXC_ILE:
3863 case OP_COND_EXC_LE_UN:
3864 case OP_COND_EXC_ILE_UN:
3865 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3866 break;
3867 case OP_COND_EXC_OV:
3868 case OP_COND_EXC_IOV:
3869 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3870 break;
3871 case OP_COND_EXC_NO:
3872 case OP_COND_EXC_INO:
3873 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3874 break;
3875 case OP_COND_EXC_C:
3876 case OP_COND_EXC_IC:
3877 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3878 break;
3879 case OP_COND_EXC_NC:
3880 case OP_COND_EXC_INC:
3881 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3882 break;
3883 case OP_IBEQ:
3884 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3885 break;
3886 case OP_IBNE_UN:
3887 EMIT_COND_BRANCH (ins, S390_CC_NE);
3888 break;
3889 case OP_IBLT:
3890 case OP_IBLT_UN:
3891 EMIT_COND_BRANCH (ins, S390_CC_LT);
3892 break;
3893 case OP_IBGT:
3894 case OP_IBGT_UN:
3895 EMIT_COND_BRANCH (ins, S390_CC_GT);
3896 break;
3897 case OP_IBGE:
3898 case OP_IBGE_UN:
3899 EMIT_COND_BRANCH (ins, S390_CC_GE);
3900 break;
3901 case OP_IBLE:
3902 case OP_IBLE_UN:
3903 EMIT_COND_BRANCH (ins, S390_CC_LE);
3904 break;
3905
3906 /* floating point opcodes */
3907 case OP_R8CONST: {
3908 if (*((float *) ins->inst_p0) == 0) {
3909 s390_lzdr (code, ins->dreg);
3910 } else {
3911 s390_basr (code, s390_r13, 0);
3912 s390_j (code, 4);
3913 s390_word (code, ins->inst_p0);
3914 s390_l (code, s390_r13, 0, s390_r13, 4);
3915 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3916 }
3917 }
3918 break;
3919 case OP_R4CONST: {
3920 if (*((float *) ins->inst_p0) == 0) {
3921 s390_lzdr (code, ins->dreg);
3922 } else {
3923 s390_basr (code, s390_r13, 0);
3924 s390_j (code, 4);
3925 s390_word (code, ins->inst_p0);
3926 s390_l (code, s390_r13, 0, s390_r13, 4);
3927 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3928 }
3929 }
3930 break;
3931 case OP_STORER8_MEMBASE_REG: {
3932 if (s390_is_uimm12(ins->inst_offset)) {
3933 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3934 } else {
3935 s390_basr (code, s390_r13, 0);
3936 s390_j (code, 4);
3937 s390_word (code, ins->inst_offset);
3938 s390_l (code, s390_r13, 0, s390_r13, 4);
3939 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3940 }
3941 }
3942 break;
3943 case OP_LOADR8_MEMBASE: {
3944 if (s390_is_uimm12(ins->inst_offset)) {
3945 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3946 } else {
3947 s390_basr (code, s390_r13, 0);
3948 s390_j (code, 4);
3949 s390_word (code, ins->inst_offset);
3950 s390_l (code, s390_r13, 0, s390_r13, 4);
3951 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3952 }
3953 }
3954 break;
3955 case OP_STORER4_MEMBASE_REG: {
3956 if (s390_is_uimm12(ins->inst_offset)) {
3957 s390_ledbr(code, s390_f15, ins->sreg1);
3958 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
3959 } else {
3960 s390_basr (code, s390_r13, 0);
3961 s390_j (code, 4);
3962 s390_word (code, ins->inst_offset);
3963 s390_l (code, s390_r13, 0, s390_r13, 4);
3964 s390_ledbr(code, s390_f15, ins->sreg1);
3965 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
3966 }
3967 }
3968 break;
3969 case OP_LOADR4_MEMBASE: {
3970 if (s390_is_uimm12(ins->inst_offset)) {
3971 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3972 } else {
3973 s390_basr (code, s390_r13, 0);
3974 s390_j (code, 4);
3975 s390_word (code, ins->inst_offset);
3976 s390_l (code, s390_r13, 0, s390_r13, 4);
3977 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3978 }
3979 }
3980 break;
3981 case OP_ICONV_TO_R_UN: {
3982 s390_cdfbr (code, ins->dreg, ins->sreg1);
3983 s390_ltr (code, ins->sreg1, ins->sreg1);
3984 s390_jnl (code, 12);
3985 s390_basr (code, s390_r13, 0);
3986 s390_j (code, 6);
3987 s390_word (code, 0x41f00000);
3988 s390_word (code, 0);
3989 s390_adb (code, ins->dreg, 0, s390_r13, 4);
3990 }
3991 break;
3992 case OP_ICONV_TO_R4: {
3993 s390_cdfbr (code, ins->dreg, ins->sreg1);
3994 }
3995 break;
3996 case OP_ICONV_TO_R8: {
3997 s390_cdfbr (code, ins->dreg, ins->sreg1);
3998 }
3999 break;
4000 case OP_FCONV_TO_I1:
4001 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4002 break;
4003 case OP_FCONV_TO_U1:
4004 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4005 break;
4006 case OP_FCONV_TO_I2:
4007 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4008 break;
4009 case OP_FCONV_TO_U2:
4010 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4011 break;
4012 case OP_FCONV_TO_I4:
4013 case OP_FCONV_TO_I:
4014 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4015 break;
4016 case OP_FCONV_TO_U4:
4017 case OP_FCONV_TO_U:
4018 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4019 break;
4020 case OP_FCONV_TO_I8:
4021 case OP_FCONV_TO_U8:
4022 g_assert_not_reached ();
4023 /* Implemented as helper calls */
4024 break;
4025 case OP_LCONV_TO_R_UN:
4026 g_assert_not_reached ();
4027 /* Implemented as helper calls */
4028 break;
4029 case OP_LCONV_TO_OVF_I:
4030 case OP_LCONV_TO_OVF_I4_2: {
4031 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4032 short int *o[5];
4033 s390_ltr (code, ins->sreg1, ins->sreg1);
4034 s390_jnl (code, 0); CODEPTR(code, o[0]);
4035 s390_ltr (code, ins->sreg2, ins->sreg2);
4036 s390_jnl (code, 0); CODEPTR(code, o[1]);
4037 s390_lhi (code, s390_r13, -1);
4038 s390_cr (code, ins->sreg2, s390_r13);
4039 s390_jnz (code, 0); CODEPTR(code, o[2]);
4040 s390_j (code, 0); CODEPTR(code, o[3]);
4041 PTRSLOT(code, o[0]);
4042 s390_ltr (code, ins->sreg2, ins->sreg2);
4043 s390_jz (code, 0); CODEPTR(code, o[4]);
4044 PTRSLOT(code, o[1]);
4045 PTRSLOT(code, o[2]);
4046 mono_add_patch_info (cfg, code - cfg->native_code,
4047 MONO_PATCH_INFO_EXC, "OverflowException");
4048 s390_brasl (code, s390_r14, 0);
4049 PTRSLOT(code, o[3]);
4050 PTRSLOT(code, o[4]);
4051 if (ins->dreg != ins->sreg1)
4052 s390_lr (code, ins->dreg, ins->sreg1);
4053 }
4054 break;
4055 case OP_SQRT: {
4056 s390_sqdbr (code, ins->dreg, ins->sreg1);
4057 }
4058 break;
4059 case OP_FADD: {
4060 CHECK_SRCDST_COM_F;
4061 s390_adbr (code, ins->dreg, src2);
4062 }
4063 break;
4064 case OP_FSUB: {
4065 CHECK_SRCDST_NCOM_F;
4066 s390_sdbr (code, ins->dreg, src2);
4067 }
4068 break;
4069 case OP_FMUL: {
4070 CHECK_SRCDST_COM_F;
4071 s390_mdbr (code, ins->dreg, src2);
4072 }
4073 break;
4074 case OP_FDIV: {
4075 CHECK_SRCDST_NCOM_F;
4076 s390_ddbr (code, ins->dreg, src2);
4077 }
4078 break;
4079 case OP_FNEG: {
4080 s390_lcdbr (code, ins->dreg, ins->sreg1);
4081 }
4082 break;
4083 case OP_FREM: {
4084 CHECK_SRCDST_NCOM_F;
4085 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4086 }
4087 break;
4088 case OP_FCOMPARE: {
4089 s390_cdbr (code, ins->sreg1, ins->sreg2);
4090 }
4091 break;
4092 case OP_FCEQ: {
4093 s390_cdbr (code, ins->sreg1, ins->sreg2);
4094 s390_lhi (code, ins->dreg, 1);
4095 s390_je (code, 4);
4096 s390_lhi (code, ins->dreg, 0);
4097 }
4098 break;
4099 case OP_FCLT: {
4100 s390_cdbr (code, ins->sreg1, ins->sreg2);
4101 s390_lhi (code, ins->dreg, 1);
4102 s390_jl (code, 4);
4103 s390_lhi (code, ins->dreg, 0);
4104 }
4105 break;
4106 case OP_FCLT_UN: {
4107 s390_cdbr (code, ins->sreg1, ins->sreg2);
4108 s390_lhi (code, ins->dreg, 1);
4109 s390_jlo (code, 4);
4110 s390_lhi (code, ins->dreg, 0);
4111 }
4112 break;
4113 case OP_FCGT: {
4114 s390_cdbr (code, ins->sreg1, ins->sreg2);
4115 s390_lhi (code, ins->dreg, 1);
4116 s390_jh (code, 4);
4117 s390_lhi (code, ins->dreg, 0);
4118 }
4119 break;
4120 case OP_FCGT_UN: {
4121 s390_cdbr (code, ins->sreg1, ins->sreg2);
4122 s390_lhi (code, ins->dreg, 1);
4123 s390_jho (code, 4);
4124 s390_lhi (code, ins->dreg, 0);
4125 }
4126 break;
4127 case OP_FBEQ: {
4128 short *o;
4129 s390_jo (code, 0); CODEPTR(code, o);
4130 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4131 PTRSLOT(code, o);
4132 }
4133 break;
4134 case OP_FBNE_UN:
4135 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4136 break;
4137 case OP_FBLT: {
4138 short *o;
4139 s390_jo (code, 0); CODEPTR(code, o);
4140 EMIT_COND_BRANCH (ins, S390_CC_LT);
4141 PTRSLOT(code, o);
4142 }
4143 break;
4144 case OP_FBLT_UN:
4145 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4146 break;
4147 case OP_FBGT: {
4148 short *o;
4149 s390_jo (code, 0); CODEPTR(code, o);
4150 EMIT_COND_BRANCH (ins, S390_CC_GT);
4151 PTRSLOT(code, o);
4152 }
4153 break;
4154 case OP_FBGT_UN:
4155 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4156 break;
4157 case OP_FBGE: {
4158 short *o;
4159 s390_jo (code, 0); CODEPTR(code, o);
4160 EMIT_COND_BRANCH (ins, S390_CC_GE);
4161 PTRSLOT(code, o);
4162 }
4163 break;
4164 case OP_FBGE_UN:
4165 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4166 break;
4167 case OP_FBLE: {
4168 short *o;
4169 s390_jo (code, 0); CODEPTR(code, o);
4170 EMIT_COND_BRANCH (ins, S390_CC_LE);
4171 PTRSLOT(code, o);
4172 }
4173 break;
4174 case OP_FBLE_UN:
4175 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4176 break;
4177 case OP_CKFINITE: {
4178 short *o;
4179 s390_lhi (code, s390_r13, 0x7f);
4180 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4181 s390_jz (code, 0); CODEPTR(code, o);
4182 mono_add_patch_info (cfg, code - cfg->native_code,
4183 MONO_PATCH_INFO_EXC, "ArithmeticException");
4184 s390_brasl (code, s390_r14,0);
4185 PTRSLOT(code, o);
4186 }
4187 break;
4188 case OP_S390_MOVE: {
4189 if (ins->backend.size > 0) {
4190 if (ins->backend.size <= 256) {
4191 s390_mvc (code, ins->backend.size, ins->dreg,
4192 ins->inst_offset, ins->sreg1, ins->inst_imm);
4193 } else {
4194 s390_lr (code, s390_r0, ins->dreg);
4195 if (s390_is_imm16 (ins->inst_offset)) {
4196 s390_ahi (code, s390_r0, ins->inst_offset);
4197 } else {
4198 s390_basr (code, s390_r13, 0);
4199 s390_j (code, 6);
4200 s390_long (code, ins->inst_offset);
4201 s390_a (code, s390_r0, 0, s390_r13, 4);
4202 }
4203 s390_lr (code, s390_r12, ins->sreg1);
4204 if (s390_is_imm16 (ins->inst_imm)) {
4205 s390_ahi (code, s390_r12, ins->inst_imm);
4206 } else {
4207 s390_basr (code, s390_r13, 0);
4208 s390_j (code, 6);
4209 s390_long (code, ins->inst_imm);
4210 s390_a (code, s390_r12, 0, s390_r13, 4);
4211 }
4212 if (s390_is_imm16 (ins->backend.size)) {
4213 s390x_lhi (code, s390_r1, ins->backend.size);
4214 } else {
4215 s390_basr (code, s390_r13, 0);
4216 s390_j (code, 6);
4217 s390_long (code, ins->backend.size);
4218 s390_l (code, s390_r1, 0, s390_r13, 4);
4219 }
4220 s390_lr (code, s390_r1, ins->backend.size);
4221 s390_lr (code, s390_r13, s390_r1);
4222 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4223 s390_jo (code, -2);
4224 }
4225 }
4226 }
4227 case OP_ATOMIC_ADD_I4: {
4228 s390_lr (code, s390_r1, ins->sreg2);
4229 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4230 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4231 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4232 s390_jnz (code, -7);
4233 s390_lr (code, ins->dreg, s390_r1);
4234 }
4235 break;
4236 case OP_ATOMIC_ADD_NEW_I4: {
4237 s390_lr (code, s390_r1, ins->sreg2);
4238 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4239 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4240 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4241 s390_jnz (code, -7);
4242 s390_lr (code, ins->dreg, s390_r1);
4243 }
4244 break;
4245 case OP_ATOMIC_EXCHANGE_I4: {
4246 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4247 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4248 s390_jnz (code, -4);
4249 s390_lr (code, ins->dreg, s390_r0);
4250 }
4251 break;
4252 case OP_S390_BKCHAIN: {
4253 s390_lr (code, ins->dreg, ins->sreg1);
4254 if (s390_is_imm16 (cfg->stack_offset)) {
4255 s390_ahi (code, ins->dreg, cfg->stack_offset);
4256 } else {
4257 s390_basr (code, s390_r13, 0);
4258 s390_j (code, 6);
4259 s390_word (code, cfg->stack_offset);
4260 s390_a (code, ins->dreg, 0, s390_r13, 4);
4261 }
4262 }
4263 case OP_MEMORY_BARRIER: {
4264 }
4265 break;
4266 default:
4267 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4268 g_assert_not_reached ();
4269 }
4270
4271 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4272 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4273 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4274 g_assert_not_reached ();
4275 }
4276
4277 cpos += max_len;
4278
4279 last_ins = ins;
4280 last_offset = offset;
4281 }
4282
4283 cfg->code_len = code - cfg->native_code;
4284 }
4285
4286 /*========================= End of Function ========================*/
4287
4288 /*------------------------------------------------------------------*/
4289 /* */
4290 /* Name - mono_arch_register_lowlevel_calls */
4291 /* */
4292 /* Function - Register routines to help with --trace operation. */
4293 /* */
4294 /*------------------------------------------------------------------*/
4295
4296 void
4297 mono_arch_register_lowlevel_calls (void)
4298 {
4299 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4300 }
4301
4302 /*========================= End of Function ========================*/
4303
4304 /*------------------------------------------------------------------*/
4305 /* */
4306 /* Name - mono_arch_patch_code */
4307 /* */
4308 /* Function - Process the patch data created during the */
4309 /* instruction build process. This resolves jumps, */
4310 /* calls, variables etc. */
4311 /* */
4312 /*------------------------------------------------------------------*/
4313
4314 void
4315 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4316 guint8 *code, MonoJumpInfo *ji, MonoCodeManager *dyn_code_mp, gboolean run_cctors)
4317 {
4318 MonoJumpInfo *patch_info;
4319
4320 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4321 unsigned char *ip = patch_info->ip.i + code;
4322 gconstpointer target = NULL;
4323
4324 target = mono_resolve_patch_target (method, domain, code,
4325 patch_info, run_cctors);
4326
4327 switch (patch_info->type) {
4328 case MONO_PATCH_INFO_IP:
4329 case MONO_PATCH_INFO_EXC_NAME:
4330 case MONO_PATCH_INFO_LDSTR:
4331 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4332 case MONO_PATCH_INFO_LDTOKEN:
4333 case MONO_PATCH_INFO_EXC:
4334 continue;
4335 case MONO_PATCH_INFO_SWITCH:
4336 /*----------------------------------*/
4337 /* ip points at the basr r13,0/j +4 */
4338 /* instruction the vtable value */
4339 /* follows this (i.e. ip+6) */
4340 /*----------------------------------*/
4341 *((gconstpointer *)(ip+6)) = target;
4342 target = NULL;
4343 continue;
4344 case MONO_PATCH_INFO_METHODCONST:
4345 case MONO_PATCH_INFO_CLASS:
4346 case MONO_PATCH_INFO_IMAGE:
4347 case MONO_PATCH_INFO_FIELD:
4348 case MONO_PATCH_INFO_IID:
4349 target = S390_RELATIVE(target, ip);
4350 continue;
4351 case MONO_PATCH_INFO_R4:
4352 case MONO_PATCH_INFO_R8:
4353 case MONO_PATCH_INFO_METHOD_REL:
4354 g_assert_not_reached ();
4355 continue;
4356 default:
4357 target = S390_RELATIVE(target, ip);
4358 ip += 2;
4359 }
4360 s390_patch (ip, (guint32) target);
4361 }
4362 }
4363
4364 /*========================= End of Function ========================*/
4365
4366 /*------------------------------------------------------------------*/
4367 /* */
4368 /* Name - emit_load_volatile_registers */
4369 /* */
4370 /* Function - Create the instruction sequence for loading the */
4371 /* parameter registers for use with the 'tail' op. */
4372 /* */
4373 /* The register loading operations performed here */
4374 /* are the mirror of the store operations performed */
4375 /* in mono_arch_emit_prolog and need to be kept in */
4376 /* synchronization with it. */
4377 /* */
4378 /*------------------------------------------------------------------*/
4379
4380 guint8 *
4381 emit_load_volatile_registers (guint8 * code, MonoCompile *cfg)
4382 {
4383 MonoMethod *method = cfg->method;
4384 MonoMethodSignature *sig;
4385 MonoInst *inst;
4386 int pos, i;
4387 CallInfo *cinfo;
4388
4389 sig = mono_method_signature (method);
4390 pos = 0;
4391
4392 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4393
4394 if (cinfo->struct_ret) {
4395 ArgInfo *ainfo = &cinfo->ret;
4396 inst = cfg->vret_addr;
4397 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4398 }
4399
4400 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4401 ArgInfo *ainfo = cinfo->args + i;
4402 inst = cfg->args [pos];
4403
4404 if (inst->opcode == OP_REGVAR) {
4405 if (ainfo->regtype == RegTypeGeneral)
4406 s390_lr (code, ainfo->reg, inst->dreg);
4407 else if (ainfo->regtype == RegTypeFP) {
4408 if (inst->dreg != ainfo->reg) {
4409 if (ainfo->size == 4) {
4410 s390_ldebr (code, ainfo->reg, inst->dreg);
4411 } else {
4412 s390_ldr (code, ainfo->reg, inst->dreg);
4413 }
4414 }
4415 }
4416 else if (ainfo->regtype == RegTypeBase) {
4417 } else
4418 g_assert_not_reached ();
4419 } else {
4420 if (ainfo->regtype == RegTypeGeneral) {
4421 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4422 g_assert_not_reached();
4423 switch (ainfo->size) {
4424 case 1:
4425 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4426 break;
4427 case 2:
4428 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4429 break;
4430 case 8:
4431 s390_lm (code, ainfo->reg, ainfo->reg + 1,
4432 inst->inst_basereg, inst->inst_offset);
4433 break;
4434 default:
4435 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4436 }
4437 } else if (ainfo->regtype == RegTypeBase) {
4438 } else if (ainfo->regtype == RegTypeFP) {
4439 if (ainfo->size == 8)
4440 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4441 else if (ainfo->size == 4)
4442 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4443 else
4444 g_assert_not_reached ();
4445 } else if (ainfo->regtype == RegTypeStructByVal) {
4446 if (ainfo->reg != STK_BASE) {
4447 switch (ainfo->size) {
4448 case 1:
4449 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4450 break;
4451 case 2:
4452 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4453 break;
4454 case 4:
4455 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4456 break;
4457 case 8:
4458 s390_lm (code, ainfo->reg, ainfo->reg+1, inst->inst_basereg, inst->inst_offset);
4459 break;
4460 }
4461 }
4462 } else if (ainfo->regtype == RegTypeStructByAddr) {
4463 if (ainfo->reg != STK_BASE) {
4464 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4465 }
4466 } else
4467 g_assert_not_reached ();
4468 }
4469 pos++;
4470 }
4471
4472 return code;
4473 }
4474
4475 /*========================= End of Function ========================*/
4476
4477 /*------------------------------------------------------------------*/
4478 /* */
4479 /* Name - mono_arch_emit_prolog */
4480 /* */
4481 /* Function - Create the instruction sequence for a function */
4482 /* prolog. */
4483 /* */
4484 /*------------------------------------------------------------------*/
4485
4486 guint8 *
4487 mono_arch_emit_prolog (MonoCompile *cfg)
4488 {
4489 MonoMethod *method = cfg->method;
4490 MonoBasicBlock *bb;
4491 MonoMethodSignature *sig;
4492 MonoInst *inst;
4493 int alloc_size, pos, max_offset, i;
4494 guint8 *code;
4495 CallInfo *cinfo;
4496 int tracing = 0;
4497 int lmfOffset; \
4498
4499 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4500 tracing = 1;
4501
4502 cfg->code_size = 1024;
4503 cfg->native_code = code = g_malloc (cfg->code_size);
4504
4505 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4506
4507 if (cfg->arch.bkchain_reg != -1)
4508 s390_lr (code, cfg->arch.bkchain_reg, STK_BASE);
4509
4510 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4511 cfg->used_int_regs |= 1 << 11;
4512 }
4513
4514 alloc_size = cfg->stack_offset;
4515
4516 cfg->stack_usage = alloc_size;
4517 s390_lr (code, s390_r11, STK_BASE);
4518 if (s390_is_uimm16 (alloc_size)) {
4519 s390_ahi (code, STK_BASE, -alloc_size);
4520 } else {
4521 int stackSize = alloc_size;
4522 while (stackSize > 32767) {
4523 s390_ahi (code, STK_BASE, -32767);
4524 stackSize -= 32767;
4525 }
4526 s390_ahi (code, STK_BASE, -stackSize);
4527 }
4528 s390_st (code, s390_r11, 0, STK_BASE, 0);
4529
4530 if (cfg->frame_reg != STK_BASE)
4531 s390_lr (code, s390_r11, STK_BASE);
4532
4533 /* compute max_offset in order to use short forward jumps
4534 * we always do it on s390 because the immediate displacement
4535 * for jumps is too small
4536 */
4537 max_offset = 0;
4538 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4539 MonoInst *ins = bb->code;
4540 bb->max_offset = max_offset;
4541
4542 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4543 max_offset += 6;
4544
4545 MONO_BB_FOR_EACH_INS (bb, ins)
4546 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4547 }
4548
4549 /* load arguments allocated to register from the stack */
4550 sig = mono_method_signature (method);
4551 pos = 0;
4552
4553 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4554
4555 if (cinfo->struct_ret) {
4556 ArgInfo *ainfo = &cinfo->ret;
4557 inst = cfg->vret_addr;
4558 inst->backend.size = ainfo->vtsize;
4559 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4560 }
4561
4562 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4563 ArgInfo *ainfo = cinfo->args + i;
4564 inst = cfg->args [pos];
4565
4566 if (inst->opcode == OP_VTARG_ADDR)
4567 inst = inst->inst_left;
4568
4569 if (inst->opcode == OP_REGVAR) {
4570 if (ainfo->regtype == RegTypeGeneral)
4571 s390_lr (code, inst->dreg, ainfo->reg);
4572 else if (ainfo->regtype == RegTypeFP) {
4573 if (inst->dreg != ainfo->reg) {
4574 if (ainfo->size == 4) {
4575 s390_ledbr (code, inst->dreg, ainfo->reg);
4576 } else {
4577 s390_ldr (code, inst->dreg, ainfo->reg);
4578 }
4579 }
4580 }
4581 else if (ainfo->regtype == RegTypeBase) {
4582 s390_lr (code, s390_r13, STK_BASE);
4583 s390_ahi (code, s390_r13, alloc_size);
4584 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4585 } else
4586 g_assert_not_reached ();
4587
4588 if (cfg->verbose_level > 2)
4589 g_print ("Argument %d assigned to register %s\n",
4590 pos, mono_arch_regname (inst->dreg));
4591 } else {
4592 if (ainfo->regtype == RegTypeGeneral) {
4593 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4594 g_assert_not_reached();
4595 switch (ainfo->size) {
4596 case 1:
4597 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4598 break;
4599 case 2:
4600 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4601 break;
4602 case 8:
4603 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4604 inst->inst_basereg, inst->inst_offset);
4605 break;
4606 default:
4607 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4608 }
4609 } else if (ainfo->regtype == RegTypeBase) {
4610 } else if (ainfo->regtype == RegTypeFP) {
4611 if (ainfo->size == 8)
4612 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4613 else if (ainfo->size == 4)
4614 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4615 else
4616 g_assert_not_reached ();
4617 } else if (ainfo->regtype == RegTypeStructByVal) {
4618 int doffset = inst->inst_offset;
4619 int reg;
4620 if (ainfo->reg != STK_BASE)
4621 reg = ainfo->reg;
4622 else {
4623 reg = s390_r0;
4624 s390_lr (code, s390_r13, STK_BASE);
4625 s390_ahi (code, s390_r13, alloc_size);
4626 }
4627 switch (ainfo->size) {
4628 case 1:
4629 if (ainfo->reg == STK_BASE)
4630 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4631 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4632 break;
4633 case 2:
4634 if (ainfo->reg == STK_BASE)
4635 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4636 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4637 break;
4638 case 4:
4639 if (ainfo->reg == STK_BASE)
4640 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4641 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4642 break;
4643 case 8:
4644 if (ainfo->reg == STK_BASE)
4645 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4646 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4647 break;
4648 }
4649 } else if (ainfo->regtype == RegTypeStructByAddr) {
4650 if (ainfo->reg != STK_BASE)
4651 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4652 } else
4653 g_assert_not_reached ();
4654 }
4655 pos++;
4656 }
4657
4658 if (method->save_lmf) {
4659 /*---------------------------------------------------------------*/
4660 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4661 /*---------------------------------------------------------------*/
4662 lmfOffset = alloc_size - sizeof(MonoLMF);
4663
4664 s390_lr (code, s390_r13, cfg->frame_reg);
4665 if (s390_is_uimm16(lmfOffset))
4666 s390_ahi (code, s390_r13, lmfOffset);
4667 else {
4668 s390_basr (code, s390_r14, 0);
4669 s390_j (code, 4);
4670 s390_word (code, lmfOffset);
4671 s390_a (code, s390_r13, 0, s390_r14, 4);
4672 }
4673
4674 /*---------------------------------------------------------------*/
4675 /* Preserve the parameter registers while we fix up the lmf */
4676 /*---------------------------------------------------------------*/
4677 s390_stm (code, s390_r2, s390_r6, s390_r13,
4678 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4679
4680 /*---------------------------------------------------------------*/
4681 /* On return from this call r2 have the address of the &lmf */
4682 /*---------------------------------------------------------------*/
4683 mono_add_patch_info (cfg, code - cfg->native_code,
4684 MONO_PATCH_INFO_INTERNAL_METHOD,
4685 (gpointer)"mono_get_lmf_addr");
4686 s390_brasl (code, s390_r14, 0);
4687
4688 /*---------------------------------------------------------------*/
4689 /* Set lmf.lmf_addr = jit_tls->lmf */
4690 /*---------------------------------------------------------------*/
4691 s390_st (code, s390_r2, 0, s390_r13,
4692 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4693
4694 /*---------------------------------------------------------------*/
4695 /* Get current lmf */
4696 /*---------------------------------------------------------------*/
4697 s390_l (code, s390_r0, 0, s390_r2, 0);
4698
4699 /*---------------------------------------------------------------*/
4700 /* Set our lmf as the current lmf */
4701 /*---------------------------------------------------------------*/
4702 s390_st (code, s390_r13, 0, s390_r2, 0);
4703
4704 /*---------------------------------------------------------------*/
4705 /* Have our lmf.previous_lmf point to the last lmf */
4706 /*---------------------------------------------------------------*/
4707 s390_st (code, s390_r0, 0, s390_r13,
4708 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4709
4710 /*---------------------------------------------------------------*/
4711 /* save method info */
4712 /*---------------------------------------------------------------*/
4713 s390_basr (code, s390_r1, 0);
4714 s390_j (code, 4);
4715 s390_word (code, method);
4716 s390_l (code, s390_r1, 0, s390_r1, 4);
4717 s390_st (code, s390_r1, 0, s390_r13,
4718 G_STRUCT_OFFSET(MonoLMF, method));
4719
4720 /*---------------------------------------------------------------*/
4721 /* save the current IP */
4722 /*---------------------------------------------------------------*/
4723 s390_st (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4724 s390_basr (code, s390_r1, 0);
4725 s390_la (code, s390_r1, 0, s390_r1, 0);
4726 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4727
4728 /*---------------------------------------------------------------*/
4729 /* Save general and floating point registers */
4730 /*---------------------------------------------------------------*/
4731 s390_stm (code, s390_r2, s390_r12, s390_r13,
4732 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4733 for (i = 0; i < 16; i++) {
4734 s390_std (code, i, 0, s390_r13,
4735 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4736 }
4737
4738 /*---------------------------------------------------------------*/
4739 /* Restore the parameter registers now that we've set up the lmf */
4740 /*---------------------------------------------------------------*/
4741 s390_lm (code, s390_r2, s390_r6, s390_r13,
4742 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4743 }
4744
4745 if (tracing)
4746 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4747
4748 cfg->code_len = code - cfg->native_code;
4749
4750 g_assert (cfg->code_len < cfg->code_size);
4751
4752 return code;
4753 }
4754
4755 /*========================= End of Function ========================*/
4756
4757 /*------------------------------------------------------------------*/
4758 /* */
4759 /* Name - mono_arch_emit_epilog */
4760 /* */
4761 /* Function - Emit the instructions for a function epilog. */
4762 /* */
4763 /*------------------------------------------------------------------*/
4764
4765 void
4766 mono_arch_emit_epilog (MonoCompile *cfg)
4767 {
4768 MonoMethod *method = cfg->method;
4769 int tracing = 0;
4770 guint8 *code;
4771 int max_epilog_size = 96;
4772
4773 if (cfg->method->save_lmf)
4774 max_epilog_size += 128;
4775
4776 if (mono_jit_trace_calls != NULL)
4777 max_epilog_size += 128;
4778
4779 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4780 max_epilog_size += 128;
4781
4782 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4783 cfg->code_size *= 2;
4784 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4785 cfg->stat_code_reallocs++;
4786 }
4787
4788 code = cfg->native_code + cfg->code_len;
4789
4790 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4791 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4792 tracing = 1;
4793 }
4794
4795 if (method->save_lmf)
4796 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4797
4798 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4799 s390_l (code, STK_BASE, 0, STK_BASE, 0);
4800 else
4801 code = backUpStackPtr(cfg, code, STK_BASE);
4802
4803 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4804 s390_br (code, s390_r14);
4805
4806 cfg->code_len = code - cfg->native_code;
4807
4808 g_assert (cfg->code_len < cfg->code_size);
4809
4810 }
4811
4812 /*========================= End of Function ========================*/
4813
4814 /*------------------------------------------------------------------*/
4815 /* */
4816 /* Name - mono_arch_emit_exceptions */
4817 /* */
4818 /* Function - Emit the blocks to handle exception conditions. */
4819 /* */
4820 /*------------------------------------------------------------------*/
4821
4822 void
4823 mono_arch_emit_exceptions (MonoCompile *cfg)
4824 {
4825 MonoJumpInfo *patch_info;
4826 guint8 *code;
4827 int nThrows = 0,
4828 exc_count = 0,
4829 iExc;
4830 guint32 code_size;
4831 MonoClass *exc_classes [MAX_EXC];
4832 guint8 *exc_throw_start [MAX_EXC];
4833
4834 for (patch_info = cfg->patch_info;
4835 patch_info;
4836 patch_info = patch_info->next) {
4837 if (patch_info->type == MONO_PATCH_INFO_EXC)
4838 exc_count++;
4839 }
4840
4841 code_size = exc_count * 26;
4842
4843 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4844 cfg->code_size *= 2;
4845 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4846 cfg->stat_code_reallocs++;
4847 }
4848
4849 code = cfg->native_code + cfg->code_len;
4850
4851 /*---------------------------------------------------------------------*/
4852 /* Add code to raise exceptions */
4853 /*---------------------------------------------------------------------*/
4854 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4855 switch (patch_info->type) {
4856 case MONO_PATCH_INFO_EXC: {
4857 guint8 *ip = patch_info->ip.i + cfg->native_code;
4858 MonoClass *exc_class;
4859 guint32 throw_ip;
4860
4861 /*-----------------------------------------------------*/
4862 /* Patch the branch in epilog to come here */
4863 /*-----------------------------------------------------*/
4864 s390_patch (ip + 2, (guint32) (S390_RELATIVE(code,ip)));
4865
4866 exc_class = mono_class_from_name (mono_defaults.corlib,
4867 "System",
4868 patch_info->data.name);
4869 g_assert (exc_class);
4870 throw_ip = patch_info->ip.i;
4871
4872 for (iExc = 0; iExc < nThrows; ++iExc)
4873 if (exc_classes [iExc] == exc_class)
4874 break;
4875
4876 if (iExc < nThrows) {
4877 s390_jcl (code, S390_CC_UN, (guint32) exc_throw_start [iExc]);
4878 patch_info->type = MONO_PATCH_INFO_NONE;
4879 } else {
4880
4881 if (nThrows < MAX_EXC) {
4882 exc_classes [nThrows] = exc_class;
4883 exc_throw_start [nThrows] = code;
4884 }
4885
4886 /*---------------------------------------------*/
4887 /* Patch the parameter passed to the handler */
4888 /*---------------------------------------------*/
4889 s390_basr (code, s390_r13, 0);
4890 s390_j (code, 4);
4891 s390_word (code, patch_info->data.target);
4892 /*---------------------------------------------*/
4893 /* Load return address & parameter register */
4894 /*---------------------------------------------*/
4895 s390_larl (code, s390_r14, (gsize)S390_RELATIVE((patch_info->ip.i +
4896 cfg->native_code + 8), code));
4897 s390_l (code, s390_r2, 0, s390_r13, 4);
4898 /*---------------------------------------------*/
4899 /* Reuse the current patch to set the jump */
4900 /*---------------------------------------------*/
4901 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4902 patch_info->data.name = "mono_arch_throw_exception_by_name";
4903 patch_info->ip.i = code - cfg->native_code;
4904 s390_jcl (code, S390_CC_UN, 0);
4905 }
4906 break;
4907 }
4908 default:
4909 /* do nothing */
4910 break;
4911 }
4912 }
4913
4914 cfg->code_len = code - cfg->native_code;
4915
4916 g_assert (cfg->code_len < cfg->code_size);
4917
4918 }
4919
4920 /*========================= End of Function ========================*/
4921
4922 /*------------------------------------------------------------------*/
4923 /* */
4924 /* Name - mono_arch_setup_jit_tls_data */
4925 /* */
4926 /* Function - Setup the JIT's Thread Level Specific Data. */
4927 /* */
4928 /*------------------------------------------------------------------*/
4929
4930 void
4931 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4932 {
4933
4934 if (!tls_offset_inited) {
4935 tls_offset_inited = TRUE;
4936
4937 #if HAVE_KW_THREAD
4938 # if 0
4939 __asm__ ("\tear\t%r1,0\n"
4940 "\tlr\t%0,%3\n"
4941 "\tsr\t%0,%r1\n"
4942 "\tlr\t%1,%4\n"
4943 "\tsr\t%1,%r1\n"
4944 "\tlr\t%2,%5\n"
4945 "\tsr\t%2,%r1\n"
4946 : "=r" (appdomain_tls_offset),
4947 "=r" (thread_tls_offset),
4948 "=r" (lmf_tls_offset)
4949 : "r" (&tls_appdomain),
4950 "r" (&tls_current_object),
4951 "r" (&mono_lmf_addr)
4952 : "1", "cc");
4953 # endif
4954 #endif
4955 }
4956
4957 if (!lmf_addr_key_inited) {
4958 lmf_addr_key_inited = TRUE;
4959 pthread_key_create (&lmf_addr_key, NULL);
4960 }
4961 pthread_setspecific (lmf_addr_key, &tls->lmf);
4962
4963 }
4964
4965 /*========================= End of Function ========================*/
4966
4967 /*------------------------------------------------------------------*/
4968 /* */
4969 /* Name - mono_arch_free_jit_tls_data */
4970 /* */
4971 /* Function - Free tls data. */
4972 /* */
4973 /*------------------------------------------------------------------*/
4974
4975 void
4976 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4977 {
4978 }
4979
4980 /*========================= End of Function ========================*/
4981
4982 /*------------------------------------------------------------------*/
4983 /* */
4984 /* Name - mono_arch_emit_inst_for_method */
4985 /* */
4986 /*------------------------------------------------------------------*/
4987
4988 MonoInst*
4989 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
4990 {
4991 return NULL;
4992 }
4993
4994 /*========================= End of Function ========================*/
4995
4996 /*------------------------------------------------------------------*/
4997 /* */
4998 /* Name - mono_arch_decompose_opts */
4999 /* */
5000 /*------------------------------------------------------------------*/
5001
5002 void
5003 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5004 {
5005 switch (ins->opcode) {
5006 case OP_ISUB_OVF:
5007 ins->opcode = OP_S390_ISUB_OVF;
5008 break;
5009 case OP_ISUB_OVF_UN:
5010 ins->opcode = OP_S390_ISUB_OVF_UN;
5011 break;
5012 case OP_IADD_OVF:
5013 ins->opcode = OP_S390_IADD_OVF;
5014 break;
5015 case OP_IADD_OVF_UN:
5016 ins->opcode = OP_S390_IADD_OVF_UN;
5017 break;
5018 default:
5019 break;
5020 }
5021 }
5022
5023 /*========================= End of Function ========================*/
5024
5025 /*------------------------------------------------------------------*/
5026 /* */
5027 /* Name - mono_arch_decompose_long_opts */
5028 /* */
5029 /*------------------------------------------------------------------*/
5030
5031 void
5032 mono_arch_decompose_long_opts (MonoCompile *cfg, MonoInst *ins)
5033 {
5034 // The generic code seems to work for OP_LSUB fine on s390, why is a different
5035 // implementation needed ? gcc also seems to use the different implementation.
5036 // FIXME: What about the other OP_L opcodes below ?
5037
5038 switch (ins->opcode) {
5039 case OP_LADD_OVF:
5040 case OP_LADD_OVF_UN:
5041 case OP_LSUB_OVF:
5042 case OP_LSUB_OVF_UN: {
5043 int opcode = 0;
5044
5045 switch (ins->opcode) {
5046 case OP_LADD:
5047 opcode = OP_S390_LADD;
5048 break;
5049 case OP_LADD_OVF:
5050 opcode = OP_S390_LADD_OVF;
5051 break;
5052 case OP_LADD_OVF_UN:
5053 opcode = OP_S390_LADD_OVF_UN;
5054 break;
5055 case OP_LSUB:
5056 opcode = OP_S390_LSUB;
5057 break;
5058 case OP_LSUB_OVF:
5059 opcode = OP_S390_LSUB_OVF;
5060 break;
5061 case OP_LSUB_OVF_UN:
5062 opcode = OP_S390_LSUB_OVF_UN;
5063 break;
5064 default:
5065 g_assert_not_reached ();
5066 }
5067
5068 /* These hard regs make ssa crazy */
5069 cfg->disable_ssa = TRUE;
5070 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r0, ins->sreg1 + 1);
5071 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r1, ins->sreg1 + 2);
5072 MONO_EMIT_NEW_BIALU (cfg, opcode, ins->dreg, ins->sreg2 + 1, ins->sreg2 + 2);
5073 NULLIFY_INS (ins);
5074 break;
5075 }
5076 case OP_LADD_IMM: {
5077 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5078 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5079 MONO_EMIT_NEW_BIALU (cfg, OP_LADD, ins->dreg, ins->sreg1, dreg);
5080 NULLIFY_INS (ins);
5081 break;
5082 }
5083 case OP_LSUB_IMM: {
5084 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5085 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5086 MONO_EMIT_NEW_BIALU (cfg, OP_LSUB, ins->dreg, ins->sreg1, dreg);
5087 NULLIFY_INS (ins);
5088 break;
5089 }
5090 case OP_LNEG: {
5091 MONO_EMIT_NEW_BIALU (cfg, OP_S390_LNEG, ins->dreg, ins->sreg1 + 1, ins->sreg1 + 2);
5092 NULLIFY_INS (ins);
5093 break;
5094 }
5095 case OP_ISUB_OVF:
5096 ins->opcode = OP_S390_ISUB_OVF;
5097 break;
5098 case OP_ISUB_OVF_UN:
5099 ins->opcode = OP_S390_ISUB_OVF_UN;
5100 break;
5101 default:
5102 break;
5103 }
5104 }
5105
5106 /*========================= End of Function ========================*/
5107
5108 /*------------------------------------------------------------------*/
5109 /* */
5110 /* Name - mono_arch_print_tree */
5111 /* */
5112 /* Function - Print platform-specific opcode details. */
5113 /* */
5114 /* Returns - 1 - opcode details have been printed */
5115 /* 0 - opcode details have not been printed */
5116 /* */
5117 /*------------------------------------------------------------------*/
5118
5119 gboolean
5120 mono_arch_print_tree (MonoInst *tree, int arity)
5121 {
5122 gboolean done;
5123
5124 switch (tree->opcode) {
5125 case OP_S390_LOADARG:
5126 case OP_S390_ARGREG:
5127 case OP_S390_ARGPTR:
5128 printf ("[0x%lx(%s)]", tree->inst_offset,
5129 mono_arch_regname (tree->inst_basereg));
5130 done = 1;
5131 break;
5132 case OP_S390_STKARG:
5133 printf ("[0x%lx(previous_frame)]",
5134 tree->inst_offset);
5135 done = 1;
5136 break;
5137 case OP_S390_MOVE:
5138 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5139 tree->inst_offset, tree->backend.size,
5140 mono_arch_regname(tree->dreg), tree->inst_imm,
5141 mono_arch_regname(tree->sreg1));
5142 done = 1;
5143 break;
5144 case OP_S390_SETF4RET:
5145 printf ("[%s,%s]",
5146 mono_arch_fregname (tree->dreg),
5147 mono_arch_fregname (tree->sreg1));
5148 done = 1;
5149 break;
5150 case OP_TLS_GET:
5151 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5152 tree->inst_imm,
5153 mono_arch_regname (tree->sreg1));
5154 done = 1;
5155 break;
5156 case OP_S390_BKCHAIN:
5157 printf ("[previous_frame(%s)]",
5158 mono_arch_regname (tree->sreg1));
5159 done = 1;
5160 break;
5161 default:
5162 done = 0;
5163 }
5164 return (done);
5165 }
5166
5167 /*========================= End of Function ========================*/
5168
5169 /*------------------------------------------------------------------*/
5170 /* */
5171 /* Name - mono_arch_regalloc_cost */
5172 /* */
5173 /* Function - Determine the cost, in the number of memory */
5174 /* references, of the action of allocating the var- */
5175 /* iable VMV into a register during global register */
5176 /* allocation. */
5177 /* */
5178 /* Returns - Cost */
5179 /* */
5180 /*------------------------------------------------------------------*/
5181
5182 guint32
5183 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5184 {
5185 /* FIXME: */
5186 return 2;
5187 }
5188
5189 /*========================= End of Function ========================*/
5190
5191 /*------------------------------------------------------------------*/
5192 /* */
5193 /* Name - mono_arch_get_domain_intrinsic */
5194 /* */
5195 /* Function - */
5196 /* */
5197 /* Returns - */
5198 /* */
5199 /*------------------------------------------------------------------*/
5200
5201 MonoInst *
5202 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5203 {
5204 MonoInst *ins;
5205
5206 if (appdomain_tls_offset == -1)
5207 return NULL;
5208
5209 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5210 ins->inst_offset = appdomain_tls_offset;
5211 return (ins);
5212 }
5213
5214 /*========================= End of Function ========================*/
5215
5216 /*------------------------------------------------------------------*/
5217 /* */
5218 /* Name - mono_arch_flush_register_windows */
5219 /* */
5220 /* Function - */
5221 /* */
5222 /* Returns - */
5223 /* */
5224 /*------------------------------------------------------------------*/
5225
5226 void
5227 mono_arch_flush_register_windows (void)
5228 {
5229 }
5230
5231 /*========================= End of Function ========================*/
5232
5233 /*------------------------------------------------------------------*/
5234 /* */
5235 /* Name - mono_arch_get_lmf_addr */
5236 /* */
5237 /* Function - */
5238 /* */
5239 /* Returns - */
5240 /* */
5241 /*------------------------------------------------------------------*/
5242
5243 gpointer
5244 mono_arch_get_lmf_addr (void)
5245 {
5246 return pthread_getspecific (lmf_addr_key);
5247 }
5248
5249
5250 /*========================= End of Function ========================*/
5251
5252 /*------------------------------------------------------------------*/
5253 /* */
5254 /* Name - mono_arch_get_patch_offset */
5255 /* */
5256 /* Function - Dummy entry point until s390x supports aot. */
5257 /* */
5258 /* Returns - Offset for patch. */
5259 /* */
5260 /*------------------------------------------------------------------*/
5261
5262 guint32
5263 mono_arch_get_patch_offset (guint8 *code)
5264 {
5265 return 0;
5266 }
5267
5268 /*========================= End of Function ========================*/
5269
5270 /*------------------------------------------------------------------*/
5271 /* */
5272 /* Name - mono_arch_context_get_int_reg. */
5273 /* */
5274 /* Function - Dummy entry point until s390x supports aot. */
5275 /* */
5276 /* Returns - Pointer to intreg. */
5277 /* */
5278 /*------------------------------------------------------------------*/
5279
5280 mgreg_t
5281 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5282 {
5283 /* FIXME: implement */
5284 g_assert_not_reached ();
5285 return NULL;
5286 }
5287
5288 /*========================= End of Function ========================*/