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2009-01-07 Zoltan Varga <vargaz@gmail.com>
[mono-project.git] / mono / mini / mini-s390x.c
blob87d422224592219581ac256e12af09c7083a1802
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->flags & MONO_INST_BRLABEL) { \
24 if (ins->inst_i0->inst_c0) { \
25 int displace; \
26 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - 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_LABEL, ins->inst_i0); \
35 s390_jcl (code, cond, 0); \
36 } \
37 } else { \
38 if (ins->inst_true_bb->native_offset) { \
39 int displace; \
40 displace = ((cfg->native_code + \
41 ins->inst_true_bb->native_offset) - code) / 2; \
42 if (s390_is_imm16(displace)) { \
43 s390_brc (code, cond, displace); \
44 } else { \
45 s390_jcl (code, cond, displace); \
46 } \
47 } else { \
48 mono_add_patch_info (cfg, code - cfg->native_code, \
49 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
50 s390_jcl (code, cond, 0); \
51 } \
52 } \
53 }
54
55 #define EMIT_UNCOND_BRANCH(ins) \
56 { \
57 if (ins->flags & MONO_INST_BRLABEL) { \
58 if (ins->inst_i0->inst_c0) { \
59 int displace; \
60 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
61 if (s390_is_imm16(displace)) { \
62 s390_brc (code, S390_CC_UN, displace); \
63 } else { \
64 s390_jcl (code, S390_CC_UN, displace); \
65 } \
66 } else { \
67 mono_add_patch_info (cfg, code - cfg->native_code, \
68 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
69 s390_jcl (code, S390_CC_UN, 0); \
70 } \
71 } else { \
72 if (ins->inst_target_bb->native_offset) { \
73 int displace; \
74 displace = ((cfg->native_code + \
75 ins->inst_target_bb->native_offset) - code) / 2; \
76 if (s390_is_imm16(displace)) { \
77 s390_brc (code, S390_CC_UN, displace); \
78 } else { \
79 s390_jcl (code, S390_CC_UN, displace); \
80 } \
81 } else { \
82 mono_add_patch_info (cfg, code - cfg->native_code, \
83 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
84 s390_jcl (code, S390_CC_UN, 0); \
85 } \
86 } \
87 }
88
89 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
90 do { \
91 mono_add_patch_info (cfg, code - cfg->native_code, \
92 MONO_PATCH_INFO_EXC, exc_name); \
93 s390_jcl (code, cond, 0); \
94 } while (0);
95
96 #define CHECK_SRCDST_COM \
97 if (ins->dreg == ins->sreg2) { \
98 src2 = ins->sreg1; \
99 } else { \
100 src2 = ins->sreg2; \
101 if (ins->dreg != ins->sreg1) { \
102 s390_lgr (code, ins->dreg, ins->sreg1); \
103 } \
104 }
105
106 #define CHECK_SRCDST_NCOM \
107 if (ins->dreg == ins->sreg2) { \
108 src2 = s390_r13; \
109 s390_lgr (code, s390_r13, ins->sreg2); \
110 } else { \
111 src2 = ins->sreg2; \
112 } \
113 if (ins->dreg != ins->sreg1) { \
114 s390_lgr (code, ins->dreg, ins->sreg1); \
115 }
116
117 #define CHECK_SRCDST_COM_I \
118 if (ins->dreg == ins->sreg2) { \
119 src2 = ins->sreg1; \
120 } else { \
121 src2 = ins->sreg2; \
122 if (ins->dreg != ins->sreg1) { \
123 s390_lgfr (code, ins->dreg, ins->sreg1); \
124 } \
125 }
126
127 #define CHECK_SRCDST_NCOM_I \
128 if (ins->dreg == ins->sreg2) { \
129 src2 = s390_r13; \
130 s390_lgfr (code, s390_r13, ins->sreg2); \
131 } else { \
132 src2 = ins->sreg2; \
133 } \
134 if (ins->dreg != ins->sreg1) { \
135 s390_lgfr (code, ins->dreg, ins->sreg1); \
136 }
137
138 #define CHECK_SRCDST_COM_F \
139 if (ins->dreg == ins->sreg2) { \
140 src2 = ins->sreg1; \
141 } else { \
142 src2 = ins->sreg2; \
143 if (ins->dreg != ins->sreg1) { \
144 s390_ldr (code, ins->dreg, ins->sreg1); \
145 } \
146 }
147
148 #define CHECK_SRCDST_NCOM_F \
149 if (ins->dreg == ins->sreg2) { \
150 src2 = s390_f15; \
151 s390_ldr (code, s390_r13, ins->sreg2); \
152 } else { \
153 src2 = ins->sreg2; \
154 } \
155 if (ins->dreg != ins->sreg1) { \
156 s390_ldr (code, ins->dreg, ins->sreg1); \
157 }
158
159 #define MONO_EMIT_NEW_MOVE2(cfg,dest,offset,src,imm,size) do { \
160 MonoInst *inst; \
161 int tmpr = 0; \
162 int sReg, dReg; \
163 MONO_INST_NEW (cfg, inst, OP_NOP); \
164 if (size > 256) { \
165 tmpr = mono_alloc_preg (cfg); \
166 MONO_EMIT_NEW_ICONST(cfg,tmpr,size); \
167 inst->dreg = dest; \
168 inst->inst_offset = offset; \
169 inst->sreg1 = src; \
170 inst->inst_imm = imm; \
171 inst->sreg2 = tmpr; \
172 } else { \
173 if (s390_is_uimm12(offset)) { \
174 inst->dreg = dest; \
175 inst->inst_offset = offset; \
176 } else { \
177 dReg = mono_alloc_preg (cfg); \
178 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
179 dReg, dest, offset); \
180 inst->dreg = dReg; \
181 inst->inst_offset = 0; \
182 } \
183 if (s390_is_uimm12(imm)) { \
184 inst->sreg1 = src; \
185 inst->inst_imm = imm; \
186 } else { \
187 sReg = mono_alloc_preg (cfg); \
188 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
189 sReg, src, imm); \
190 inst->sreg1 = sReg; \
191 inst->inst_imm = 0; \
192 } \
193 } \
194 inst->opcode = OP_S390_MOVE; \
195 inst->backend.size = size; \
196 MONO_ADD_INS (cfg->cbb, inst); \
197 } while (0)
198
199 #define MONO_OUTPUT_VTR2(cfg, size, dr, sr, so) do { \
200 int reg = mono_alloc_preg (cfg); \
201 switch (size) { \
202 case 0: \
203 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
204 break; \
205 case 1: \
206 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
207 reg, sr, so); \
208 break; \
209 case 2: \
210 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
211 reg, sr, so); \
212 break; \
213 case 4: \
214 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
215 reg, sr, so); \
216 break; \
217 case 8: \
218 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI8_MEMBASE, \
219 reg, sr, so); \
220 break; \
221 } \
222 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
223 } while (0)
224
225 #define MONO_OUTPUT_VTS2(cfg, size, dr, dx, sr, so) do { \
226 int tmpr; \
227 switch (size) { \
228 case 0: \
229 tmpr = mono_alloc_preg (cfg); \
230 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
231 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
232 dr, dx, tmpr); \
233 break; \
234 case 1: \
235 tmpr = mono_alloc_preg (cfg); \
236 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
237 tmpr, sr, so); \
238 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
239 dr, dx, tmpr); \
240 break; \
241 case 2: \
242 tmpr = mono_alloc_preg (cfg); \
243 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
244 tmpr, sr, so); \
245 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
246 dr, dx, tmpr); \
247 break; \
248 case 4: \
249 tmpr = mono_alloc_preg (cfg); \
250 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADI4_MEMBASE, \
251 tmpr, sr, so); \
252 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
253 dr, dx, tmpr); \
254 break; \
255 case 8: \
256 MONO_EMIT_NEW_MOVE2 (cfg, dr, dx, sr, so, size); \
257 break; \
258 } \
259 } while (0)
260
261 #undef DEBUG
262 #define DEBUG(a) if (cfg->verbose_level > 1) a
263
264 #define MAX_EXC 16
265
266 #define S390_TRACE_STACK_SIZE (5*sizeof(gpointer)+4*sizeof(gdouble))
267
268 #define MAX(a, b) ((a) > (b) ? (a) : (b))
269
270 /*========================= End of Defines =========================*/
271
272 /*------------------------------------------------------------------*/
273 /* I n c l u d e s */
274 /*------------------------------------------------------------------*/
275
276 #include "mini.h"
277 #include <string.h>
278
279 #include <mono/metadata/appdomain.h>
280 #include <mono/metadata/debug-helpers.h>
281 #include <mono/metadata/profiler-private.h>
282 #include <mono/utils/mono-math.h>
283
284 #include "mini-s390x.h"
285 #include "inssel.h"
286 #include "cpu-s390x.h"
287 #include "jit-icalls.h"
288
289 /*========================= End of Includes ========================*/
290
291 /*------------------------------------------------------------------*/
292 /* T y p e d e f s */
293 /*------------------------------------------------------------------*/
294
295 typedef struct {
296 guint stack_size,
297 local_size,
298 code_size,
299 parm_size,
300 offset,
301 offStruct,
302 retStruct;
303 } size_data;
304
305 /*------------------------------------------------------------------*/
306 /* Used by the instrument_emit_epilog */
307 /*------------------------------------------------------------------*/
308
309 enum {
310 SAVE_NONE,
311 SAVE_STRUCT,
312 SAVE_ONE,
313 SAVE_TWO,
314 SAVE_R4,
315 SAVE_R8
316 };
317
318 typedef struct InstList InstList;
319
320 struct InstList {
321 InstList *prev;
322 InstList *next;
323 MonoInst *data;
324 };
325
326 typedef enum {
327 RegTypeGeneral,
328 RegTypeBase,
329 RegTypeFP,
330 RegTypeFPR4,
331 RegTypeStructByVal,
332 RegTypeStructByValInFP,
333 RegTypeStructByAddr
334 } ArgStorage;
335
336 typedef struct {
337 gint32 offset; /* offset from caller's stack */
338 gint32 offparm; /* offset from callee's stack */
339 guint16 vtsize; /* in param area */
340 guint8 reg;
341 ArgStorage regtype;
342 guint32 size; /* Size of structure used by RegTypeStructByVal */
343 gint32 type; /* Data type of argument */
344 } ArgInfo;
345
346 typedef struct {
347 int nargs;
348 int lastgr;
349 guint32 stack_usage;
350 guint32 struct_ret;
351 ArgInfo ret;
352 ArgInfo sigCookie;
353 size_data sz;
354 ArgInfo args [1];
355 } CallInfo;
356
357 typedef struct {
358 gint64 gr[5]; /* R2-R6 */
359 gdouble fp[3]; /* F0-F2 */
360 } __attribute__ ((packed)) RegParm;
361
362 /*========================= End of Typedefs ========================*/
363
364 /*------------------------------------------------------------------*/
365 /* P r o t o t y p e s */
366 /*------------------------------------------------------------------*/
367
368 static void indent (int);
369 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
370 static void decodeParm (MonoType *, void *, int);
371 static void enter_method (MonoMethod *, RegParm *, char *);
372 static void leave_method (MonoMethod *, ...);
373 static gboolean is_regsize_var (MonoType *);
374 static inline void add_general (guint *, size_data *, ArgInfo *);
375 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
376 static inline void add_float (guint *, size_data *, ArgInfo *);
377 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
378 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
379 gpointer mono_arch_get_lmf_addr (void);
380 static guint8 * emit_load_volatile_arguments (guint8 *, MonoCompile *);
381 static void catch_SIGILL(int, siginfo_t *, void *);
382 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *, int);
383
384 /*========================= End of Prototypes ======================*/
385
386 /*------------------------------------------------------------------*/
387 /* G l o b a l V a r i a b l e s */
388 /*------------------------------------------------------------------*/
389
390 int mono_exc_esp_offset = 0;
391
392 static int indent_level = 0;
393
394 int has_ld = 0;
395
396 static gboolean tls_offset_inited = FALSE;
397
398 static int appdomain_tls_offset = -1,
399 thread_tls_offset = -1;
400
401 pthread_key_t lmf_addr_key;
402
403 gboolean lmf_addr_key_inited = FALSE;
404
405 #if 0
406
407 extern __thread MonoDomain *tls_appdomain;
408 extern __thread MonoThread *tls_current_object;
409 extern __thread gpointer mono_lmf_addr;
410
411 #endif
412
413 /*====================== End of Global Variables ===================*/
414
415 /*------------------------------------------------------------------*/
416 /* */
417 /* Name - mono_arch_regname */
418 /* */
419 /* Function - Returns the name of the register specified by */
420 /* the input parameter. */
421 /* */
422 /*------------------------------------------------------------------*/
423
424 const char*
425 mono_arch_regname (int reg) {
426 static const char * rnames[] = {
427 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
428 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
429 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
430 "s390_r15"
431 };
432
433 if (reg >= 0 && reg < 16)
434 return rnames [reg];
435 else
436 return "unknown";
437 }
438
439 /*========================= End of Function ========================*/
440
441 /*------------------------------------------------------------------*/
442 /* */
443 /* Name - mono_arch_fregname */
444 /* */
445 /* Function - Returns the name of the register specified by */
446 /* the input parameter. */
447 /* */
448 /*------------------------------------------------------------------*/
449
450 const char*
451 mono_arch_fregname (int reg) {
452 static const char * rnames[] = {
453 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
454 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
455 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
456 "s390_f15"
457 };
458
459 if (reg >= 0 && reg < 16)
460 return rnames [reg];
461 else
462 return "unknown";
463 }
464
465 /*========================= End of Function ========================*/
466
467 /*------------------------------------------------------------------*/
468 /* */
469 /* Name - arch_get_argument_info */
470 /* */
471 /* Function - Gathers information on parameters such as size, */
472 /* alignment, and padding. arg_info should be large */
473 /* enough to hold param_count + 1 entries. */
474 /* */
475 /* Parameters - @csig - Method signature */
476 /* @param_count - No. of parameters to consider */
477 /* @arg_info - An array to store the result info */
478 /* */
479 /* Returns - Size of the activation frame */
480 /* */
481 /*------------------------------------------------------------------*/
482
483 int
484 mono_arch_get_argument_info (MonoMethodSignature *csig,
485 int param_count,
486 MonoJitArgumentInfo *arg_info)
487 {
488 int k, frame_size = 0;
489 int size, align, pad;
490 int offset = 8;
491
492 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
493 frame_size += sizeof (gpointer);
494 offset += 8;
495 }
496
497 arg_info [0].offset = offset;
498
499 if (csig->hasthis) {
500 frame_size += sizeof (gpointer);
501 offset += 8;
502 }
503
504 arg_info [0].size = frame_size;
505
506 for (k = 0; k < param_count; k++) {
507
508 if (csig->pinvoke)
509 size = mono_type_native_stack_size (csig->params [k], &align);
510 else
511 size = mini_type_stack_size (NULL, csig->params [k], &align);
512
513 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
514 arg_info [k].pad = pad;
515 frame_size += size;
516 arg_info [k + 1].pad = 0;
517 arg_info [k + 1].size = size;
518 offset += pad;
519 arg_info [k + 1].offset = offset;
520 offset += size;
521 }
522
523 align = MONO_ARCH_FRAME_ALIGNMENT;
524 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
525 arg_info [k].pad = pad;
526
527 return frame_size;
528 }
529
530 /*========================= End of Function ========================*/
531
532 /*------------------------------------------------------------------*/
533 /* */
534 /* Name - retFitsInReg. */
535 /* */
536 /* Function - Determines if a value can be returned in one or */
537 /* two registers. */
538 /* */
539 /*------------------------------------------------------------------*/
540
541 static inline gboolean
542 retFitsInReg(guint32 size)
543 {
544 switch (size) {
545 case 0:
546 case 1:
547 case 2:
548 case 4:
549 case 8:
550 return (TRUE);
551 break;
552 default:
553 return (FALSE);
554 }
555 }
556
557 /*========================= End of Function ========================*/
558
559 /*------------------------------------------------------------------*/
560 /* */
561 /* Name - backStackPtr. */
562 /* */
563 /* Function - Restore Stack Pointer to previous frame. */
564 /* */
565 /*------------------------------------------------------------------*/
566
567 static inline guint8 *
568 backUpStackPtr(MonoCompile *cfg, guint8 *code)
569 {
570 int stackSize = cfg->stack_usage;
571
572 if (s390_is_imm16 (stackSize)) {
573 s390_aghi (code, STK_BASE, stackSize);
574 } else {
575 while (stackSize > 32767) {
576 s390_aghi (code, STK_BASE, 32767);
577 stackSize -= 32767;
578 }
579 s390_aghi (code, STK_BASE, stackSize);
580 }
581 return (code);
582 }
583
584 /*========================= End of Function ========================*/
585
586 /*------------------------------------------------------------------*/
587 /* */
588 /* Name - indent */
589 /* */
590 /* Function - Perform nice indenting to current level */
591 /* */
592 /*------------------------------------------------------------------*/
593
594 static void
595 indent (int diff) {
596 int v;
597 if (diff < 0)
598 indent_level += diff;
599 v = indent_level;
600 printf("[%3d] ",v);
601 while (v-- > 0) {
602 printf (". ");
603 }
604 if (diff > 0)
605 indent_level += diff;
606 }
607
608 /*========================= End of Function ========================*/
609
610 /*------------------------------------------------------------------*/
611 /* */
612 /* Name - decodeParm */
613 /* */
614 /* Function - Decode a parameter for the trace. */
615 /* */
616 /*------------------------------------------------------------------*/
617
618 static void
619 decodeParm(MonoType *type, void *curParm, int size)
620 {
621 guint32 simpleType;
622
623 if (type->byref) {
624 printf("[BYREF:%p], ", *((char **) curParm));
625 } else {
626 simpleType = mono_type_get_underlying_type(type)->type;
627 enum_parmtype:
628 switch (simpleType) {
629 case MONO_TYPE_I :
630 printf ("[INTPTR:%p], ", *((int **) curParm));
631 break;
632 case MONO_TYPE_U :
633 printf ("[UINTPTR:%p], ", *((int **) curParm));
634 break;
635 case MONO_TYPE_BOOLEAN :
636 printf ("[BOOL:%ld], ", *((gint64 *) curParm));
637 break;
638 case MONO_TYPE_CHAR :
639 printf ("[CHAR:%c], ", *((int *) curParm));
640 break;
641 case MONO_TYPE_I1 :
642 printf ("[INT1:%ld], ", *((gint64 *) curParm));
643 break;
644 case MONO_TYPE_I2 :
645 printf ("[INT2:%ld], ", *((gint64 *) curParm));
646 break;
647 case MONO_TYPE_I4 :
648 printf ("[INT4:%ld], ", *((gint64 *) curParm));
649 break;
650 case MONO_TYPE_U1 :
651 printf ("[UINT1:%lu], ", *((guint64 *) curParm));
652 break;
653 case MONO_TYPE_U2 :
654 printf ("[UINT2:%lu], ", *((guint64 *) curParm));
655 break;
656 case MONO_TYPE_U4 :
657 printf ("[UINT4:%lu], ", *((guint64 *) curParm));
658 break;
659 case MONO_TYPE_U8 :
660 printf ("[UINT8:%lu], ", *((guint64 *) curParm));
661 break;
662 case MONO_TYPE_STRING : {
663 MonoString *s = *((MonoString **) curParm);
664 if (s) {
665 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
666 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
667 } else {
668 printf("[STRING:null], ");
669 }
670 break;
671 }
672 case MONO_TYPE_CLASS :
673 case MONO_TYPE_OBJECT : {
674 MonoObject *obj = *((MonoObject **) curParm);
675 MonoClass *class;
676 if ((obj) && (obj->vtable)) {
677 printf("[CLASS/OBJ:");
678 class = obj->vtable->klass;
679 printf("%p [%p] ",obj,curParm);
680 if (class == mono_defaults.string_class) {
681 printf("[STRING:%p:%s]",
682 obj, mono_string_to_utf8 ((MonoString *) obj));
683 } else if (class == mono_defaults.int32_class) {
684 printf("[INT32:%p:%d]",
685 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
686 } else
687 printf("[%s.%s:%p]",
688 class->name_space, class->name, obj);
689 printf("], ");
690 } else {
691 printf("[OBJECT:null], ");
692 }
693 break;
694 }
695 case MONO_TYPE_PTR :
696 printf("[PTR:%p], ", *((gpointer **) (curParm)));
697 break;
698 case MONO_TYPE_FNPTR :
699 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
700 break;
701 case MONO_TYPE_ARRAY :
702 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
703 break;
704 case MONO_TYPE_SZARRAY :
705 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
706 break;
707 case MONO_TYPE_I8 :
708 printf("[INT8:%ld], ", *((gint64 *) (curParm)));
709 break;
710 case MONO_TYPE_R4 :
711 printf("[FLOAT4:%g], ", *((float *) (curParm)));
712 break;
713 case MONO_TYPE_R8 :
714 printf("[FLOAT8:%g], ", *((double *) (curParm)));
715 break;
716 case MONO_TYPE_VALUETYPE : {
717 int i;
718 MonoMarshalType *info;
719
720 if (type->data.klass->enumtype) {
721 simpleType = type->data.klass->enum_basetype->type;
722 printf("{VALUETYPE} - ");
723 goto enum_parmtype;
724 }
725
726 info = mono_marshal_load_type_info (type->data.klass);
727
728 if ((info->native_size == sizeof(float)) &&
729 (info->num_fields == 1) &&
730 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
731 printf("[FLOAT4:%f], ", *((float *) (curParm)));
732 break;
733 }
734
735 if ((info->native_size == sizeof(double)) &&
736 (info->num_fields == 1) &&
737 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
738 printf("[FLOAT8:%g], ", *((double *) (curParm)));
739 break;
740 }
741
742 printf("[VALUETYPE:");
743 for (i = 0; i < size; i++)
744 printf("%02x,", *((guint8 *)curParm+i));
745 printf("]");
746 break;
747 }
748 case MONO_TYPE_TYPEDBYREF: {
749 int i;
750 printf("[TYPEDBYREF:");
751 for (i = 0; i < size; i++)
752 printf("%02x,", *((guint8 *)curParm+i));
753 printf("]");
754 break;
755 }
756 default :
757 printf("[?? - %d], ",simpleType);
758 }
759 }
760 }
761
762 /*========================= End of Function ========================*/
763
764 /*------------------------------------------------------------------*/
765 /* */
766 /* Name - enter_method */
767 /* */
768 /* Function - Perform tracing of the entry to the current */
769 /* method. */
770 /* */
771 /*------------------------------------------------------------------*/
772
773 static void
774 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
775 {
776 int i, oParm = 0, iParm = 0;
777 MonoClass *class;
778 MonoObject *obj;
779 MonoMethodSignature *sig;
780 char *fname;
781 guint64 ip;
782 CallInfo *cinfo;
783 ArgInfo *ainfo;
784 void *curParm;
785
786 fname = mono_method_full_name (method, TRUE);
787 indent (1);
788 printf ("ENTER: %s ", fname);
789 g_free (fname);
790
791 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
792 printf ("ip: %p sp: %p - ", (gpointer) ip, sp);
793
794 if (rParm == NULL)
795 return;
796
797 sig = mono_method_signature (method);
798
799 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
800
801 if (cinfo->struct_ret) {
802 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
803 iParm = 1;
804 }
805
806 if (sig->hasthis) {
807 gpointer *this = (gpointer *) rParm->gr[iParm];
808 obj = (MonoObject *) this;
809 if (method->klass->valuetype) {
810 if (obj) {
811 printf("this:[value:%p:%016lx], ",
812 this, *((guint64 *)(this+sizeof(MonoObject))));
813 } else
814 printf ("this:[NULL], ");
815 } else {
816 if (obj) {
817 class = obj->vtable->klass;
818 if (class == mono_defaults.string_class) {
819 printf ("this:[STRING:%p:%s], ",
820 obj, mono_string_to_utf8 ((MonoString *)obj));
821 } else {
822 printf ("this:%p[%s.%s], ",
823 obj, class->name_space, class->name);
824 }
825 } else
826 printf ("this:NULL, ");
827 }
828 oParm++;
829 }
830
831 for (i = 0; i < sig->param_count; ++i) {
832 ainfo = &cinfo->args[i + oParm];
833 switch (ainfo->regtype) {
834 case RegTypeGeneral :
835 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
836 break;
837 case RegTypeFP :
838 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
839 break;
840 case RegTypeBase :
841 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
842 break;
843 case RegTypeStructByVal :
844 if (ainfo->reg != STK_BASE) {
845 int offset = sizeof(glong) - ainfo->size;
846 curParm = &(rParm->gr[ainfo->reg-2])+offset;
847 }
848 else
849 curParm = sp+ainfo->offset;
850
851 if (retFitsInReg (ainfo->vtsize))
852 decodeParm(sig->params[i],
853 curParm,
854 ainfo->size);
855 else
856 decodeParm(sig->params[i],
857 *((char **) curParm),
858 ainfo->vtsize);
859 break;
860 case RegTypeStructByAddr :
861 if (ainfo->reg != STK_BASE)
862 curParm = &(rParm->gr[ainfo->reg-2]);
863 else
864 curParm = sp+ainfo->offset;
865
866 decodeParm(sig->params[i],
867 *((char **) curParm),
868 ainfo->vtsize);
869 break;
870
871 default :
872 printf("???, ");
873 }
874 }
875 printf("\n");
876 g_free(cinfo);
877 }
878
879 /*========================= End of Function ========================*/
880
881 /*------------------------------------------------------------------*/
882 /* */
883 /* Name - leave_method */
884 /* */
885 /* Function - */
886 /* */
887 /*------------------------------------------------------------------*/
888
889 static void
890 leave_method (MonoMethod *method, ...)
891 {
892 MonoType *type;
893 char *fname;
894 guint64 ip;
895 va_list ap;
896
897 va_start(ap, method);
898
899 fname = mono_method_full_name (method, TRUE);
900 indent (-1);
901 printf ("LEAVE: %s", fname);
902 g_free (fname);
903
904 type = mono_method_signature (method)->ret;
905
906 handle_enum:
907 switch (type->type) {
908 case MONO_TYPE_VOID:
909 break;
910 case MONO_TYPE_BOOLEAN: {
911 int val = va_arg (ap, int);
912 if (val)
913 printf ("[TRUE:%d]", val);
914 else
915 printf ("[FALSE]");
916
917 break;
918 }
919 case MONO_TYPE_CHAR: {
920 int val = va_arg (ap, int);
921 printf ("[CHAR:%d]", val);
922 break;
923 }
924 case MONO_TYPE_I1: {
925 int val = va_arg (ap, int);
926 printf ("[INT1:%d]", val);
927 break;
928 }
929 case MONO_TYPE_U1: {
930 int val = va_arg (ap, int);
931 printf ("[UINT1:%d]", val);
932 break;
933 }
934 case MONO_TYPE_I2: {
935 int val = va_arg (ap, int);
936 printf ("[INT2:%d]", val);
937 break;
938 }
939 case MONO_TYPE_U2: {
940 int val = va_arg (ap, int);
941 printf ("[UINT2:%d]", val);
942 break;
943 }
944 case MONO_TYPE_I4: {
945 int val = va_arg (ap, int);
946 printf ("[INT4:%d]", val);
947 break;
948 }
949 case MONO_TYPE_U4: {
950 int val = va_arg (ap, int);
951 printf ("[UINT4:%d]", val);
952 break;
953 }
954 case MONO_TYPE_I: {
955 gint64 val = va_arg (ap, gint64);
956 printf ("[INT:%ld]", val);
957 printf("]");
958 break;
959 }
960 case MONO_TYPE_U: {
961 gint64 val = va_arg (ap, gint64);
962 printf ("[UINT:%lu]", val);
963 printf("]");
964 break;
965 }
966 case MONO_TYPE_STRING: {
967 MonoString *s = va_arg (ap, MonoString *);
968 ;
969 if (s) {
970 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
971 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
972 } else
973 printf ("[STRING:null], ");
974 break;
975 }
976 case MONO_TYPE_CLASS:
977 case MONO_TYPE_OBJECT: {
978 MonoObject *o = va_arg (ap, MonoObject *);
979
980 if ((o) && (o->vtable)) {
981 if (o->vtable->klass == mono_defaults.boolean_class) {
982 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
983 } else if (o->vtable->klass == mono_defaults.int32_class) {
984 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
985 } else if (o->vtable->klass == mono_defaults.int64_class) {
986 printf ("[INT64:%p:%ld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
987 } else
988 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
989 } else
990 printf ("[OBJECT:%p]", o);
991
992 break;
993 }
994 case MONO_TYPE_PTR:
995 case MONO_TYPE_FNPTR:
996 case MONO_TYPE_ARRAY:
997 case MONO_TYPE_SZARRAY: {
998 gpointer p = va_arg (ap, gpointer);
999 printf ("[result=%p]", p);
1000 break;
1001 }
1002 case MONO_TYPE_I8: {
1003 gint64 l = va_arg (ap, gint64);
1004 printf ("[LONG:%ld]", l);
1005 break;
1006 }
1007 case MONO_TYPE_U8: {
1008 guint64 l = va_arg (ap, guint64);
1009 printf ("[ULONG:%lu]", l);
1010 break;
1011 }
1012 case MONO_TYPE_R4: {
1013 double f = va_arg (ap, double);
1014 printf ("[FLOAT4:%g]\n", f);
1015 break;
1016 }
1017 case MONO_TYPE_R8: {
1018 double f = va_arg (ap, double);
1019 printf ("[FLOAT8:%g]\n", f);
1020 break;
1021 }
1022 case MONO_TYPE_VALUETYPE: {
1023 MonoMarshalType *info;
1024 if (type->data.klass->enumtype) {
1025 type = type->data.klass->enum_basetype;
1026 goto handle_enum;
1027 } else {
1028 guint8 *p = va_arg (ap, gpointer);
1029 int j, size, align;
1030
1031 info = mono_marshal_load_type_info (type->data.klass);
1032
1033 if ((info->native_size == sizeof(float)) &&
1034 (info->num_fields == 1) &&
1035 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1036 double f = va_arg (ap, double);
1037 printf("[FLOAT4:%g]\n", (double) f);
1038 break;
1039 }
1040
1041 if ((info->native_size == sizeof(double)) &&
1042 (info->num_fields == 1) &&
1043 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1044 double f = va_arg (ap, double);
1045 printf("[FLOAT8:%g]\n", f);
1046 break;
1047 }
1048
1049 size = mono_type_size (type, &align);
1050 switch (size) {
1051 case 1:
1052 case 2:
1053 case 4:
1054 case 8:
1055 printf ("[");
1056 for (j = 0; p && j < size; j++)
1057 printf ("%02x,", p [j]);
1058 printf ("]\n");
1059 break;
1060 default:
1061 printf ("[VALUETYPE]\n");
1062 }
1063 }
1064 break;
1065 }
1066 case MONO_TYPE_TYPEDBYREF: {
1067 guint8 *p = va_arg (ap, gpointer);
1068 int j, size, align;
1069 size = mono_type_size (type, &align);
1070 switch (size) {
1071 case 1:
1072 case 2:
1073 case 4:
1074 case 8:
1075 printf ("[");
1076 for (j = 0; p && j < size; j++)
1077 printf ("%02x,", p [j]);
1078 printf ("]\n");
1079 break;
1080 default:
1081 printf ("[TYPEDBYREF]\n");
1082 }
1083 }
1084 break;
1085 default:
1086 printf ("(unknown return type %x)",
1087 mono_method_signature (method)->ret->type);
1088 }
1089
1090 ip = ((gint64) __builtin_return_address (0));
1091 printf (" ip: %p\n", (gpointer) ip);
1092 }
1093
1094 /*========================= End of Function ========================*/
1095
1096 /*------------------------------------------------------------------*/
1097 /* */
1098 /* Name - catch_SIGILL */
1099 /* */
1100 /* Function - Catch SIGILL as a result of testing for long */
1101 /* displacement facility. */
1102 /* */
1103 /*------------------------------------------------------------------*/
1104
1105 void
1106 catch_SIGILL(int sigNo, siginfo_t *info, void *act) {
1107
1108 has_ld = 0;
1109
1110 }
1111
1112 /*========================= End of Function ========================*/
1113
1114 /*------------------------------------------------------------------*/
1115 /* */
1116 /* Name - mono_arch_cpu_init */
1117 /* */
1118 /* Function - Perform CPU specific initialization to execute */
1119 /* managed code. */
1120 /* */
1121 /*------------------------------------------------------------------*/
1122
1123 void
1124 mono_arch_cpu_init (void)
1125 {
1126 struct sigaction sa,
1127 *oldSa = NULL;
1128 guint mode = 1;
1129
1130 /*--------------------------------------*/
1131 /* Set default rounding mode for FP */
1132 /*--------------------------------------*/
1133 __asm__ ("SRNM\t%0\n\t"
1134 : : "m" (mode));
1135
1136 /*--------------------------------------*/
1137 /* Determine if we have long displace- */
1138 /* ment facility on this processor */
1139 /*--------------------------------------*/
1140 sa.sa_sigaction = catch_SIGILL;
1141 sigemptyset (&sa.sa_mask);
1142 sa.sa_flags = SA_SIGINFO;
1143
1144 sigaction (SIGILL, &sa, oldSa);
1145
1146 /*--------------------------------------*/
1147 /* We test by executing the STY inst */
1148 /*--------------------------------------*/
1149 __asm__ ("LGHI\t0,1\n\t"
1150 "LA\t1,%0\n\t"
1151 ".byte\t0xe3,0x00,0x10,0x00,0x00,0x50\n\t"
1152 : "=m" (has_ld) : : "0", "1");
1153
1154 sigaction (SIGILL, oldSa, NULL);
1155 }
1156
1157 /*========================= End of Function ========================*/
1158
1159
1160 /*
1161 * Initialize architecture specific code.
1162 */
1163 void
1164 mono_arch_init (void)
1165 {
1166 }
1167
1168 /*
1169 * Cleanup architecture specific code.
1170 */
1171 void
1172 mono_arch_cleanup (void)
1173 {
1174 }
1175
1176 /*------------------------------------------------------------------*/
1177 /* */
1178 /* Name - mono_arch_cpu_optimizazions */
1179 /* */
1180 /* Function - Returns the optimizations supported on this CPU */
1181 /* */
1182 /*------------------------------------------------------------------*/
1183
1184 guint32
1185 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1186 {
1187 guint32 opts = 0;
1188
1189 /*----------------------------------------------------------*/
1190 /* No s390-specific optimizations yet */
1191 /*----------------------------------------------------------*/
1192 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1193 // *exclude_mask = MONO_OPT_INLINE;
1194 return opts;
1195 }
1196
1197 /*========================= End of Function ========================*/
1198
1199 /*------------------------------------------------------------------*/
1200 /* */
1201 /* Name - */
1202 /* */
1203 /* Function - */
1204 /* */
1205 /*------------------------------------------------------------------*/
1206
1207 static gboolean
1208 is_regsize_var (MonoType *t) {
1209 if (t->byref)
1210 return TRUE;
1211 switch (mono_type_get_underlying_type (t)->type) {
1212 case MONO_TYPE_I4:
1213 case MONO_TYPE_U4:
1214 case MONO_TYPE_I:
1215 case MONO_TYPE_I8:
1216 case MONO_TYPE_U8:
1217 case MONO_TYPE_U:
1218 case MONO_TYPE_PTR:
1219 case MONO_TYPE_FNPTR:
1220 return TRUE;
1221 case MONO_TYPE_OBJECT:
1222 case MONO_TYPE_STRING:
1223 case MONO_TYPE_CLASS:
1224 case MONO_TYPE_SZARRAY:
1225 case MONO_TYPE_ARRAY:
1226 return FALSE;
1227 case MONO_TYPE_VALUETYPE:
1228 if (t->data.klass->enumtype)
1229 return is_regsize_var (t->data.klass->enum_basetype);
1230 return FALSE;
1231 }
1232 return FALSE;
1233 }
1234
1235 /*========================= End of Function ========================*/
1236
1237 /*------------------------------------------------------------------*/
1238 /* */
1239 /* Name - mono_arch_get_allocatable_int_vars */
1240 /* */
1241 /* Function - */
1242 /* */
1243 /*------------------------------------------------------------------*/
1244
1245 GList *
1246 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1247 {
1248 GList *vars = NULL;
1249 int i;
1250
1251 for (i = 0; i < cfg->num_varinfo; i++) {
1252 MonoInst *ins = cfg->varinfo [i];
1253 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1254
1255 /* unused vars */
1256 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1257 continue;
1258
1259 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1260 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1261 continue;
1262
1263 /* we can only allocate 32 bit values */
1264 if (is_regsize_var (ins->inst_vtype)) {
1265 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1266 g_assert (i == vmv->idx);
1267 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1268 }
1269 }
1270
1271 return vars;
1272 }
1273
1274 /*========================= End of Function ========================*/
1275
1276 /*------------------------------------------------------------------*/
1277 /* */
1278 /* Name - mono_arch_global_int_regs */
1279 /* */
1280 /* Function - Return a list of usable integer registers. */
1281 /* */
1282 /*------------------------------------------------------------------*/
1283
1284 GList *
1285 mono_arch_get_global_int_regs (MonoCompile *cfg)
1286 {
1287 GList *regs = NULL;
1288 MonoMethodHeader *header;
1289 int i, top = 13;
1290
1291 header = mono_method_get_header (cfg->method);
1292 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1293 cfg->frame_reg = s390_r11;
1294
1295
1296 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1297 top = 12;
1298 for (i = 8; i < top; ++i) {
1299 if (cfg->frame_reg != i)
1300 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1301 }
1302
1303 return regs;
1304 }
1305
1306 /*========================= End of Function ========================*/
1307
1308 /*------------------------------------------------------------------*/
1309 /* */
1310 /* Name - mono_arch_flush_icache */
1311 /* */
1312 /* Function - Flush the CPU icache. */
1313 /* */
1314 /*------------------------------------------------------------------*/
1315
1316 void
1317 mono_arch_flush_icache (guint8 *code, gint size)
1318 {
1319 }
1320
1321 /*========================= End of Function ========================*/
1322
1323 /*------------------------------------------------------------------*/
1324 /* */
1325 /* Name - add_general */
1326 /* */
1327 /* Function - Determine code and stack size incremements for a */
1328 /* parameter. */
1329 /* */
1330 /*------------------------------------------------------------------*/
1331
1332 static void inline
1333 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1334 {
1335 if (*gr > S390_LAST_ARG_REG) {
1336 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1337 ainfo->offset = sz->stack_size;
1338 ainfo->reg = STK_BASE;
1339 ainfo->regtype = RegTypeBase;
1340 sz->stack_size += sizeof(long);
1341 sz->local_size += sizeof(long);
1342 sz->offStruct += sizeof(long);
1343 sz->code_size += 12;
1344 } else {
1345 ainfo->reg = *gr;
1346 sz->code_size += 8;
1347 }
1348 (*gr) ++;
1349 }
1350
1351 /*========================= End of Function ========================*/
1352
1353 /*------------------------------------------------------------------*/
1354 /* */
1355 /* Name - add_stackParm */
1356 /* */
1357 /* Function - Determine code and stack size incremements for a */
1358 /* parameter. */
1359 /* */
1360 /*------------------------------------------------------------------*/
1361
1362 static void inline
1363 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1364 {
1365 if (*gr > S390_LAST_ARG_REG) {
1366 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1367 ainfo->reg = STK_BASE;
1368 ainfo->offset = sz->stack_size;
1369 sz->stack_size += sizeof (gpointer);
1370 sz->parm_size += sizeof(gpointer);
1371 sz->offStruct += sizeof(gpointer);
1372 } else {
1373 ainfo->reg = *gr;
1374 ainfo->offset = sz->stack_size;
1375 }
1376 (*gr) ++;
1377 ainfo->offparm = sz->offset;
1378 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1379 ainfo->size = size;
1380 ainfo->regtype = RegTypeStructByAddr;
1381 ainfo->vtsize = size;
1382 sz->parm_size += size;
1383 }
1384
1385 /*========================= End of Function ========================*/
1386
1387 /*------------------------------------------------------------------*/
1388 /* */
1389 /* Name - add_float */
1390 /* */
1391 /* Function - Determine code and stack size incremements for a */
1392 /* float parameter. */
1393 /* */
1394 /*------------------------------------------------------------------*/
1395
1396 static void inline
1397 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1398 {
1399 if ((*fr) <= S390_LAST_FPARG_REG) {
1400 ainfo->regtype = RegTypeFP;
1401 ainfo->reg = *fr;
1402 sz->code_size += 4;
1403 (*fr) += 2;
1404 }
1405 else {
1406 ainfo->offset = sz->stack_size;
1407 ainfo->reg = STK_BASE;
1408 ainfo->regtype = RegTypeBase;
1409 sz->code_size += 4;
1410 sz->stack_size += sizeof(double);
1411 sz->local_size += sizeof(double);
1412 sz->offStruct += sizeof(double);
1413 }
1414 }
1415
1416 /*========================= End of Function ========================*/
1417
1418 /*------------------------------------------------------------------*/
1419 /* */
1420 /* Name - get_call_info */
1421 /* */
1422 /* Function - Determine the amount of space required for code */
1423 /* and stack. In addition determine starting points */
1424 /* for stack-based parameters, and area for struct- */
1425 /* ures being returned on the stack. */
1426 /* */
1427 /*------------------------------------------------------------------*/
1428
1429 static CallInfo *
1430 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1431 {
1432 guint i, fr, gr, size;
1433 int nParm = sig->hasthis + sig->param_count;
1434 MonoType *ret_type;
1435 guint32 simpletype, align;
1436 CallInfo *cinfo;
1437 size_data *sz;
1438 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1439
1440 if (mp)
1441 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1442 else
1443 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1444
1445 fr = 0;
1446 gr = s390_r2;
1447 nParm = 0;
1448 cinfo->struct_ret = 0;
1449 sz = &cinfo->sz;
1450 sz->retStruct = 0;
1451 sz->offset = 0;
1452 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1453 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1454 sz->code_size = 0;
1455 sz->parm_size = 0;
1456 sz->local_size = 0;
1457
1458 /*----------------------------------------------------------*/
1459 /* We determine the size of the return code/stack in case we*/
1460 /* need to reserve a register to be used to address a stack */
1461 /* area that the callee will use. */
1462 /*----------------------------------------------------------*/
1463
1464 ret_type = mono_type_get_underlying_type (sig->ret);
1465 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1466 simpletype = ret_type->type;
1467 enum_retvalue:
1468 switch (simpletype) {
1469 case MONO_TYPE_BOOLEAN:
1470 case MONO_TYPE_I1:
1471 case MONO_TYPE_U1:
1472 case MONO_TYPE_I2:
1473 case MONO_TYPE_U2:
1474 case MONO_TYPE_CHAR:
1475 case MONO_TYPE_I4:
1476 case MONO_TYPE_U4:
1477 case MONO_TYPE_I:
1478 case MONO_TYPE_U:
1479 case MONO_TYPE_CLASS:
1480 case MONO_TYPE_OBJECT:
1481 case MONO_TYPE_SZARRAY:
1482 case MONO_TYPE_ARRAY:
1483 case MONO_TYPE_PTR:
1484 case MONO_TYPE_FNPTR:
1485 case MONO_TYPE_STRING:
1486 cinfo->ret.reg = s390_r2;
1487 sz->code_size += 4;
1488 break;
1489 case MONO_TYPE_R4:
1490 case MONO_TYPE_R8:
1491 cinfo->ret.reg = s390_f0;
1492 sz->code_size += 4;
1493 break;
1494 case MONO_TYPE_I8:
1495 case MONO_TYPE_U8:
1496 cinfo->ret.reg = s390_r2;
1497 sz->code_size += 4;
1498 break;
1499 case MONO_TYPE_GENERICINST:
1500 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1501 cinfo->ret.reg = s390_r2;
1502 sz->code_size += 4;
1503 break;
1504 }
1505 /* Fall through */
1506 case MONO_TYPE_VALUETYPE: {
1507 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1508 if (klass->enumtype) {
1509 simpletype = klass->enum_basetype->type;
1510 goto enum_retvalue;
1511 }
1512 if (sig->pinvoke)
1513 size = mono_class_native_size (klass, &align);
1514 else
1515 size = mono_class_value_size (klass, &align);
1516
1517 cinfo->ret.reg = s390_r2;
1518 cinfo->struct_ret = 1;
1519 cinfo->ret.size = size;
1520 cinfo->ret.vtsize = size;
1521 gr++;
1522 break;
1523 }
1524 case MONO_TYPE_TYPEDBYREF:
1525 size = sizeof (MonoTypedRef);
1526 cinfo->ret.reg = s390_r2;
1527 cinfo->struct_ret = 1;
1528 cinfo->ret.size = size;
1529 cinfo->ret.vtsize = size;
1530 gr++;
1531 break;
1532 case MONO_TYPE_VOID:
1533 break;
1534 default:
1535 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1536 }
1537
1538 if (sig->hasthis) {
1539 cinfo->args[nParm].size = sizeof(gpointer);
1540 add_general (&gr, sz, cinfo->args+nParm);
1541 nParm++;
1542 }
1543
1544 /*----------------------------------------------------------*/
1545 /* We determine the size of the parameter code and stack */
1546 /* requirements by checking the types and sizes of the */
1547 /* parameters. */
1548 /*----------------------------------------------------------*/
1549
1550 for (i = 0; i < sig->param_count; ++i) {
1551 MonoType *ptype;
1552
1553 /*--------------------------------------------------*/
1554 /* Handle vararg type calls. All args are put on */
1555 /* the stack. */
1556 /*--------------------------------------------------*/
1557 if ((sig->call_convention == MONO_CALL_VARARG) &&
1558 (i == sig->sentinelpos)) {
1559 gr = S390_LAST_ARG_REG + 1;
1560 add_general (&gr, sz, &cinfo->sigCookie);
1561 }
1562
1563 if (sig->params [i]->byref) {
1564 add_general (&gr, sz, cinfo->args+nParm);
1565 cinfo->args[nParm].size = sizeof(gpointer);
1566 nParm++;
1567 continue;
1568 }
1569
1570 ptype = mono_type_get_underlying_type (sig->params [i]);
1571 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1572 simpletype = ptype->type;
1573 cinfo->args[nParm].type = simpletype;
1574 switch (simpletype) {
1575 case MONO_TYPE_BOOLEAN:
1576 case MONO_TYPE_I1:
1577 case MONO_TYPE_U1:
1578 cinfo->args[nParm].size = sizeof(char);
1579 add_general (&gr, sz, cinfo->args+nParm);
1580 nParm++;
1581 break;
1582 case MONO_TYPE_I2:
1583 case MONO_TYPE_U2:
1584 case MONO_TYPE_CHAR:
1585 cinfo->args[nParm].size = sizeof(short);
1586 add_general (&gr, sz, cinfo->args+nParm);
1587 nParm++;
1588 break;
1589 case MONO_TYPE_I4:
1590 case MONO_TYPE_U4:
1591 cinfo->args[nParm].size = sizeof(int);
1592 add_general (&gr, sz, cinfo->args+nParm);
1593 nParm++;
1594 break;
1595 case MONO_TYPE_I:
1596 case MONO_TYPE_U:
1597 case MONO_TYPE_PTR:
1598 case MONO_TYPE_FNPTR:
1599 case MONO_TYPE_CLASS:
1600 case MONO_TYPE_OBJECT:
1601 case MONO_TYPE_STRING:
1602 case MONO_TYPE_SZARRAY:
1603 case MONO_TYPE_ARRAY:
1604 cinfo->args[nParm].size = sizeof(gpointer);
1605 add_general (&gr, sz, cinfo->args+nParm);
1606 nParm++;
1607 break;
1608 case MONO_TYPE_I8:
1609 case MONO_TYPE_U8:
1610 cinfo->args[nParm].size = sizeof(long long);
1611 add_general (&gr, sz, cinfo->args+nParm);
1612 nParm++;
1613 break;
1614 case MONO_TYPE_R4:
1615 cinfo->args[nParm].size = sizeof(float);
1616 add_float (&fr, sz, cinfo->args+nParm);
1617 nParm++;
1618 break;
1619 case MONO_TYPE_R8:
1620 cinfo->args[nParm].size = sizeof(double);
1621 add_float (&fr, sz, cinfo->args+nParm);
1622 nParm++;
1623 break;
1624 case MONO_TYPE_GENERICINST:
1625 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1626 cinfo->args[nParm].size = sizeof(gpointer);
1627 add_general (&gr, sz, cinfo->args+nParm);
1628 nParm++;
1629 break;
1630 }
1631 /* Fall through */
1632 case MONO_TYPE_VALUETYPE: {
1633 MonoMarshalType *info;
1634 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1635 if (sig->pinvoke)
1636 size = mono_class_native_size (klass, &align);
1637 else
1638 size = mono_class_value_size (klass, &align);
1639
1640 info = mono_marshal_load_type_info (klass);
1641
1642 if ((info->native_size == sizeof(float)) &&
1643 (info->num_fields == 1) &&
1644 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1645 cinfo->args[nParm].size = sizeof(float);
1646 add_float(&fr, sz, cinfo->args+nParm);
1647 nParm ++;
1648 break;
1649 }
1650
1651 if ((info->native_size == sizeof(double)) &&
1652 (info->num_fields == 1) &&
1653 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1654 cinfo->args[nParm].size = sizeof(double);
1655 add_float(&fr, sz, cinfo->args+nParm);
1656 nParm ++;
1657 break;
1658 }
1659
1660 cinfo->args[nParm].vtsize = 0;
1661 cinfo->args[nParm].size = 0;
1662
1663 switch (size) {
1664 /*----------------------------------*/
1665 /* On S/390, structures of size 1, */
1666 /* 2, 4, and 8 bytes are passed in */
1667 /* (a) register(s). */
1668 /*----------------------------------*/
1669 case 0:
1670 case 1:
1671 case 2:
1672 case 4:
1673 case 8:
1674 add_general(&gr, sz, cinfo->args+nParm);
1675 cinfo->args[nParm].size = size;
1676 cinfo->args[nParm].regtype = RegTypeStructByVal;
1677 nParm++;
1678 sz->local_size += sizeof(long);
1679 break;
1680 default:
1681 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1682 nParm++;
1683 }
1684 }
1685 break;
1686 case MONO_TYPE_TYPEDBYREF: {
1687 int size = sizeof (MonoTypedRef);
1688
1689 cinfo->args[nParm].vtsize = 0;
1690 cinfo->args[nParm].size = 0;
1691
1692 switch (size) {
1693 /*----------------------------------*/
1694 /* On S/390, structures of size 1, */
1695 /* 2, 4, and 8 bytes are passed in */
1696 /* (a) register(s). */
1697 /*----------------------------------*/
1698 case 0:
1699 case 1:
1700 case 2:
1701 case 4:
1702 case 8:
1703 add_general(&gr, sz, cinfo->args+nParm);
1704 cinfo->args[nParm].size = size;
1705 cinfo->args[nParm].regtype = RegTypeStructByVal;
1706 nParm++;
1707 sz->local_size += sizeof(long);
1708 break;
1709 default:
1710 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1711 nParm++;
1712 }
1713 }
1714 break;
1715 default:
1716 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1717 }
1718 }
1719
1720 /*----------------------------------------------------------*/
1721 /* Handle the case where there are no implicit arguments */
1722 /*----------------------------------------------------------*/
1723 if ((sig->call_convention == MONO_CALL_VARARG) &&
1724 (sig->param_count == sig->sentinelpos)) {
1725 gr = S390_LAST_ARG_REG + 1;
1726 add_general (&gr, sz, &cinfo->sigCookie);
1727 }
1728
1729 /*----------------------------------------------------------*/
1730 /* If we are passing a structure back then if it won't be */
1731 /* in a register(s) then we make room at the end of the */
1732 /* parameters that may have been placed on the stack */
1733 /*----------------------------------------------------------*/
1734 if (cinfo->struct_ret) {
1735 cinfo->ret.offset = sz->stack_size;
1736 switch (cinfo->ret.size) {
1737 case 0:
1738 case 1:
1739 case 2:
1740 case 4:
1741 case 8:
1742 break;
1743 default:
1744 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1745 }
1746 }
1747
1748 cinfo->lastgr = gr;
1749 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1750 sz->offset;
1751 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1752
1753 return (cinfo);
1754 }
1755
1756 /*========================= End of Function ========================*/
1757
1758 /*------------------------------------------------------------------*/
1759 /* */
1760 /* Name - mono_arch_allocate_vars */
1761 /* */
1762 /* Function - Set var information according to the calling */
1763 /* convention for S/390. The local var stuff should */
1764 /* most likely be split in another method. */
1765 /* */
1766 /* Parameter - @m - Compile unit. */
1767 /* */
1768 /*------------------------------------------------------------------*/
1769
1770 void
1771 mono_arch_allocate_vars (MonoCompile *cfg)
1772 {
1773 MonoMethodSignature *sig;
1774 MonoMethodHeader *header;
1775 MonoInst *inst;
1776 CallInfo *cinfo;
1777 int iParm, iVar, offset, size, align, curinst;
1778 int frame_reg = STK_BASE;
1779 int sArg, eArg;
1780
1781 header = mono_method_get_header (cfg->method);
1782
1783 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1784
1785 /*---------------------------------------------------------*/
1786 /* We use the frame register also for any method that has */
1787 /* filter clauses. This way, when the handlers are called, */
1788 /* the code will reference local variables using the frame */
1789 /* reg instead of the stack pointer: if we had to restore */
1790 /* the stack pointer, we'd corrupt the method frames that */
1791 /* are already on the stack (since filters get called */
1792 /* before stack unwinding happens) when the filter code */
1793 /* would call any method. */
1794 /*---------------------------------------------------------*/
1795 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1796 frame_reg = s390_r11;
1797
1798 cfg->frame_reg = frame_reg;
1799
1800 cfg->arch.bkchain_reg = -1;
1801
1802 if (frame_reg != STK_BASE)
1803 cfg->used_int_regs |= 1 << frame_reg;
1804
1805 sig = mono_method_signature (cfg->method);
1806
1807 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1808
1809 if (cinfo->struct_ret) {
1810 if (!cfg->new_ir) {
1811 cfg->vret_addr->opcode = OP_REGVAR;
1812 cfg->vret_addr->inst_c0 = s390_r2;
1813 }
1814 } else {
1815 switch (mono_type_get_underlying_type (sig->ret)->type) {
1816 case MONO_TYPE_VOID:
1817 break;
1818 default:
1819 cfg->ret->opcode = OP_REGVAR;
1820 cfg->ret->dreg = s390_r2;
1821 break;
1822 }
1823 }
1824
1825 /*--------------------------------------------------------------*/
1826 /* local vars are at a positive offset from the stack pointer */
1827 /* also note that if the function uses alloca, we use s390_r11 */
1828 /* to point at the local variables. */
1829 /* add parameter area size for called functions */
1830 /*--------------------------------------------------------------*/
1831 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1832 cfg->sig_cookie = 0;
1833
1834 if (cinfo->struct_ret) {
1835 inst = cfg->vret_addr;
1836 offset = S390_ALIGN(offset, sizeof(gpointer));
1837 inst->inst_offset = offset;
1838 inst->opcode = OP_REGOFFSET;
1839 inst->inst_basereg = frame_reg;
1840 offset += sizeof(gpointer);
1841 if (!cfg->new_ir && (sig->call_convention == MONO_CALL_VARARG) &&
1842 (!retFitsInReg (cinfo->ret.size)))
1843 cfg->sig_cookie += cinfo->ret.size;
1844 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1845 printf ("vret_addr =");
1846 mono_print_ins (cfg->vret_addr);
1847 }
1848 }
1849
1850 if (sig->hasthis) {
1851 inst = cfg->args [0];
1852 if (inst->opcode != OP_REGVAR) {
1853 inst->opcode = OP_REGOFFSET;
1854 inst->inst_basereg = frame_reg;
1855 offset = S390_ALIGN(offset, sizeof(gpointer));
1856 inst->inst_offset = offset;
1857 offset += sizeof (gpointer);
1858 }
1859 curinst = sArg = 1;
1860 } else {
1861 curinst = sArg = 0;
1862 }
1863
1864 eArg = sig->param_count + sArg;
1865
1866 if (sig->call_convention == MONO_CALL_VARARG)
1867 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1868
1869 for (iParm = sArg; iParm < eArg; ++iParm) {
1870 inst = cfg->args [curinst];
1871 if (inst->opcode != OP_REGVAR) {
1872 switch (cinfo->args[iParm].regtype) {
1873 case RegTypeStructByAddr :
1874 if (cfg->new_ir) {
1875 MonoInst *indir;
1876
1877 size = sizeof (gpointer);
1878
1879 inst->opcode = OP_REGOFFSET;
1880 inst->inst_basereg = frame_reg;
1881 offset = S390_ALIGN (offset, sizeof (gpointer));
1882 inst->inst_offset = offset;
1883
1884 /* Add a level of indirection */
1885 MONO_INST_NEW (cfg, indir, 0);
1886 *indir = *inst;
1887 inst->opcode = OP_VTARG_ADDR;
1888 inst->inst_left = indir;
1889 } else {
1890 if (cinfo->args[iParm].reg == STK_BASE) {
1891 inst->opcode = OP_S390_LOADARG;
1892 inst->inst_basereg = frame_reg;
1893 offset = S390_ALIGN(offset, sizeof(long));
1894 inst->inst_offset = offset;
1895 size = abs(cinfo->args[iParm].vtsize);
1896 inst->backend.arg_info = cinfo->args[iParm].offset;
1897 } else {
1898 inst->opcode = OP_S390_ARGREG;
1899 inst->inst_basereg = frame_reg;
1900 size = sizeof(gpointer);
1901 offset = S390_ALIGN(offset, size);
1902 inst->inst_offset = offset;
1903 inst->backend.arg_info = cinfo->args[iParm].offset;
1904 }
1905 }
1906 break;
1907 case RegTypeStructByVal :
1908 if (cfg->new_ir) {
1909 size = cinfo->args[iParm].size;
1910 offset = S390_ALIGN(offset, size);
1911 inst->opcode = OP_REGOFFSET;
1912 inst->inst_basereg = frame_reg;
1913 inst->inst_offset = offset;
1914 } else {
1915 inst->opcode = OP_S390_ARGPTR;
1916 inst->inst_basereg = frame_reg;
1917 size = cinfo->args[iParm].size;
1918 offset = S390_ALIGN(offset, size);
1919 inst->inst_offset = offset;
1920 inst->backend.arg_info = cinfo->args[iParm].offset;
1921 }
1922 break;
1923 default :
1924 if (cfg->new_ir) {
1925 if (cinfo->args [iParm].reg == STK_BASE) {
1926 /*
1927 * These arguments are in the previous frame, so we can't
1928 * compute their offset from the current frame pointer right
1929 * now, since cfg->stack_offset is not yet known, so dedicate a
1930 * register holding the previous frame pointer.
1931 */
1932 cfg->arch.bkchain_reg = s390_r12;
1933 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1934
1935 inst->opcode = OP_REGOFFSET;
1936 inst->inst_basereg = cfg->arch.bkchain_reg;
1937 size = (cinfo->args[iParm].size < 8
1938 ? 8 - cinfo->args[iParm].size
1939 : 0);
1940 inst->inst_offset = cinfo->args [iParm].offset + size;
1941 size = sizeof (long);
1942 } else {
1943 inst->opcode = OP_REGOFFSET;
1944 inst->inst_basereg = frame_reg;
1945 size = (cinfo->args[iParm].size < 8
1946 ? sizeof(int)
1947 : sizeof(long));
1948 offset = S390_ALIGN(offset, size);
1949 inst->inst_offset = offset;
1950 }
1951 } else {
1952 if (cinfo->args[iParm].reg != STK_BASE) {
1953 inst->opcode = OP_REGOFFSET;
1954 inst->inst_basereg = frame_reg;
1955 size = (cinfo->args[iParm].size < 8
1956 ? sizeof(int)
1957 : sizeof(long));
1958 offset = S390_ALIGN(offset, size);
1959 inst->inst_offset = offset;
1960 } else {
1961 inst->opcode = OP_S390_STKARG;
1962 inst->inst_basereg = frame_reg;
1963 size = ((cinfo->args[iParm].size < 8)
1964 ? 8 - cinfo->args[iParm].size
1965 : 0);
1966 inst->inst_offset = cinfo->args[iParm].offset +
1967 size;
1968 inst->backend.arg_info = 0;
1969 size = sizeof(long);
1970 }
1971 }
1972 break;
1973 }
1974 if ((sig->call_convention == MONO_CALL_VARARG) &&
1975 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1976 (iParm < sig->sentinelpos))
1977 cfg->sig_cookie += size;
1978
1979 offset += size;
1980 }
1981 curinst++;
1982 }
1983
1984 curinst = cfg->locals_start;
1985 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1986 inst = cfg->varinfo [iVar];
1987 if ((inst->flags & MONO_INST_IS_DEAD) ||
1988 (inst->opcode == OP_REGVAR))
1989 continue;
1990
1991 /*--------------------------------------------------*/
1992 /* inst->backend.is_pinvoke indicates native sized value types, */
1993 /* this is used by the pinvoke wrappers when they */
1994 /* call functions returning structure */
1995 /*--------------------------------------------------*/
1996 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1997 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1998 else
1999 size = mono_type_size (inst->inst_vtype, &align);
2000
2001 offset = S390_ALIGN(offset, align);
2002 inst->inst_offset = offset;
2003 inst->opcode = OP_REGOFFSET;
2004 inst->inst_basereg = frame_reg;
2005 offset += size;
2006 DEBUG (g_print("allocating local %d to %ld, size: %d\n",
2007 iVar, inst->inst_offset, size));
2008 }
2009
2010 /*------------------------------------------------------*/
2011 /* Allow space for the trace method stack area if needed*/
2012 /*------------------------------------------------------*/
2013 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method))
2014 offset += S390_TRACE_STACK_SIZE;
2015
2016 /*------------------------------------------------------*/
2017 /* Reserve space to save LMF and caller saved registers */
2018 /*------------------------------------------------------*/
2019 if (cfg->method->save_lmf)
2020 offset += sizeof (MonoLMF);
2021
2022 /*------------------------------------------------------*/
2023 /* align the offset */
2024 /*------------------------------------------------------*/
2025 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
2026
2027 }
2028
2029 /*========================= End of Function ========================*/
2030
2031 /*------------------------------------------------------------------*/
2032 /* */
2033 /* Name - mono_arch_create_vars */
2034 /*------------------------------------------------------------------*/
2035
2036 void
2037 mono_arch_create_vars (MonoCompile *cfg)
2038 {
2039 MonoMethodSignature *sig;
2040 CallInfo *cinfo;
2041
2042 sig = mono_method_signature (cfg->method);
2043
2044 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2045
2046 if (cinfo->struct_ret) {
2047 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
2048 if (G_UNLIKELY (cfg->verbose_level > 1)) {
2049 printf ("vret_addr = ");
2050 mono_print_ins (cfg->vret_addr);
2051 }
2052 }
2053 }
2054
2055 /*========================= End of Function ========================*/
2056
2057 /*------------------------------------------------------------------*/
2058 /* */
2059 /* Name - mono_arch_call_opcode */
2060 /* */
2061 /* Function - Take the arguments and generate the arch-specific */
2062 /* instructions to properly call the function. This */
2063 /* includes pushing, moving argments to the correct */
2064 /* etc. */
2065 /* */
2066 /*------------------------------------------------------------------*/
2067
2068 MonoCallInst*
2069 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
2070 MonoCallInst *call, int is_virtual)
2071 {
2072 MonoInst *in;
2073 MonoCallArgParm *arg;
2074 MonoMethodSignature *sig;
2075 int i, n, lParamArea;
2076 CallInfo *cinfo;
2077 ArgInfo *ainfo;
2078
2079 sig = call->signature;
2080 n = sig->param_count + sig->hasthis;
2081 DEBUG (g_print ("Call requires: %d parameters\n",n));
2082
2083 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2084
2085 call->stack_usage = MAX(cinfo->sz.stack_size, call->stack_usage);
2086 lParamArea = MAX((call->stack_usage - S390_MINIMAL_STACK_SIZE - cinfo->sz.parm_size), 0);
2087 cfg->param_area = MAX (((signed) cfg->param_area), lParamArea);
2088 cfg->flags |= MONO_CFG_HAS_CALLS;
2089
2090 if (cinfo->struct_ret)
2091 call->used_iregs |= 1 << cinfo->ret.reg;
2092
2093 for (i = 0; i < n; ++i) {
2094 ainfo = cinfo->args + i;
2095
2096 if (!(sig->pinvoke) &&
2097 (sig->call_convention == MONO_CALL_VARARG) &&
2098 (i == sig->sentinelpos)) {
2099 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
2100 }
2101
2102 if (is_virtual && i == 0) {
2103 /* the argument will be attached to the call instrucion */
2104 in = call->args [i];
2105 call->used_iregs |= 1 << ainfo->reg;
2106 } else {
2107 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG);
2108 in = call->args [i];
2109 arg->ins.cil_code = in->cil_code;
2110 arg->ins.inst_left = in;
2111 arg->ins.type = in->type;
2112 /* prepend, we'll need to reverse them later */
2113 arg->ins.next = call->out_args;
2114 call->out_args = (MonoInst *) arg;
2115 arg->ins.inst_right = (MonoInst *) call;
2116 if (ainfo->regtype == RegTypeGeneral) {
2117 arg->ins.backend.reg3 = ainfo->reg;
2118 call->used_iregs |= 1 << ainfo->reg;
2119 } else if (ainfo->regtype == RegTypeStructByAddr) {
2120 call->used_iregs |= 1 << ainfo->reg;
2121 arg->ins.sreg1 = ainfo->reg;
2122 arg->ins.opcode = OP_OUTARG_VT;
2123 arg->size = -ainfo->vtsize;
2124 arg->offset = ainfo->offset;
2125 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2126 } else if (ainfo->regtype == RegTypeStructByVal) {
2127 if (ainfo->reg != STK_BASE)
2128 call->used_iregs |= 1 << ainfo->reg;
2129 arg->ins.sreg1 = ainfo->reg;
2130 arg->ins.opcode = OP_OUTARG_VT;
2131 arg->size = ainfo->size;
2132 arg->offset = ainfo->offset;
2133 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2134 } else if (ainfo->regtype == RegTypeBase) {
2135 arg->ins.opcode = OP_OUTARG_MEMBASE;
2136 arg->ins.sreg1 = ainfo->reg;
2137 arg->size = ainfo->size;
2138 arg->offset = ainfo->offset;
2139 call->used_iregs |= 1 << ainfo->reg;
2140 } else if (ainfo->regtype == RegTypeFP) {
2141 arg->ins.backend.reg3 = ainfo->reg;
2142 call->used_fregs |= 1 << ainfo->reg;
2143 if (ainfo->size == 4)
2144 arg->ins.opcode = OP_OUTARG_R4;
2145 else
2146 arg->ins.opcode = OP_OUTARG_R8;
2147 } else {
2148 g_assert_not_reached ();
2149 }
2150 }
2151 }
2152
2153 /*
2154 * Handle the case where there are no implicit arguments
2155 */
2156 if (!(sig->pinvoke) &&
2157 (sig->call_convention == MONO_CALL_VARARG) &&
2158 (n == sig->sentinelpos)) {
2159 emit_sig_cookie (cfg, call, cinfo, sizeof(MonoType *));
2160 }
2161
2162 /*
2163 * Reverse the call->out_args list.
2164 */
2165 {
2166 MonoInst *prev = NULL, *list = call->out_args, *next;
2167 while (list) {
2168 next = list->next;
2169 list->next = prev;
2170 prev = list;
2171 list = next;
2172 }
2173 call->out_args = prev;
2174 }
2175
2176 return call;
2177 }
2178
2179 /*========================= End of Function ========================*/
2180
2181 static void
2182 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
2183 {
2184 MonoInst *ins;
2185
2186 switch (storage) {
2187 case RegTypeGeneral:
2188 MONO_INST_NEW (cfg, ins, OP_MOVE);
2189 ins->dreg = mono_alloc_ireg (cfg);
2190 ins->sreg1 = tree->dreg;
2191 MONO_ADD_INS (cfg->cbb, ins);
2192 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
2193 break;
2194 case RegTypeFP:
2195 MONO_INST_NEW (cfg, ins, OP_FMOVE);
2196 ins->dreg = mono_alloc_freg (cfg);
2197 ins->sreg1 = tree->dreg;
2198 MONO_ADD_INS (cfg->cbb, ins);
2199 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2200 break;
2201 case RegTypeFPR4:
2202 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
2203 ins->dreg = mono_alloc_freg (cfg);
2204 ins->sreg1 = tree->dreg;
2205 MONO_ADD_INS (cfg->cbb, ins);
2206 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2207 break;
2208 default:
2209 g_assert_not_reached ();
2210 }
2211 }
2212
2213 static void
2214 emit_sig_cookie2 (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2215 {
2216 MonoMethodSignature *tmpSig;
2217 MonoInst *sig_arg;
2218
2219 cfg->disable_aot = TRUE;
2220
2221 /*----------------------------------------------------------*/
2222 /* mono_ArgIterator_Setup assumes the signature cookie is */
2223 /* passed first and all the arguments which were before it */
2224 /* passed on the stack after the signature. So compensate */
2225 /* by passing a different signature. */
2226 /*----------------------------------------------------------*/
2227 tmpSig = mono_metadata_signature_dup (call->signature);
2228 tmpSig->param_count -= call->signature->sentinelpos;
2229 tmpSig->sentinelpos = 0;
2230 if (tmpSig->param_count > 0)
2231 memcpy (tmpSig->params,
2232 call->signature->params + call->signature->sentinelpos,
2233 tmpSig->param_count * sizeof(MonoType *));
2234
2235 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2236 sig_arg->dreg = mono_alloc_ireg (cfg);
2237 sig_arg->inst_p0 = tmpSig;
2238 MONO_ADD_INS (cfg->cbb, sig_arg);
2239
2240 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2241 cinfo->sigCookie.offset, sig_arg->dreg);
2242 }
2243
2244 /*------------------------------------------------------------------*/
2245 /* */
2246 /* Name - mono_arch_emit_call */
2247 /* */
2248 /*------------------------------------------------------------------*/
2249
2250 void
2251 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2252 {
2253 MonoInst *in;
2254 MonoMethodSignature *sig;
2255 MonoInst *ins;
2256 int i, n, lParamArea;
2257 CallInfo *cinfo;
2258 ArgInfo *ainfo = NULL;
2259 int stackSize;
2260
2261 sig = call->signature;
2262 n = sig->param_count + sig->hasthis;
2263 DEBUG (g_print ("Call requires: %d parameters\n",n));
2264
2265 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2266
2267 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2268 call->stack_usage = MAX(stackSize, call->stack_usage);
2269 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2270 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2271 cfg->flags |= MONO_CFG_HAS_CALLS;
2272
2273 if (cinfo->struct_ret) {
2274 MONO_INST_NEW (cfg, ins, OP_MOVE);
2275 ins->sreg1 = call->vret_var->dreg;
2276 ins->dreg = mono_alloc_preg (cfg);
2277 MONO_ADD_INS (cfg->cbb, ins);
2278 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2279 }
2280
2281 for (i = 0; i < n; ++i) {
2282 ainfo = cinfo->args + i;
2283 MonoType *t;
2284
2285 if (i >= sig->hasthis)
2286 t = sig->params [i - sig->hasthis];
2287 else
2288 t = &mono_defaults.int_class->byval_arg;
2289 t = mono_type_get_underlying_type (t);
2290
2291 in = call->args [i];
2292
2293 if ((sig->call_convention == MONO_CALL_VARARG) &&
2294 (i == sig->sentinelpos)) {
2295 emit_sig_cookie2 (cfg, call, cinfo);
2296 }
2297
2298 switch (ainfo->regtype) {
2299 case RegTypeGeneral:
2300 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2301 break;
2302 case RegTypeFP:
2303 if (MONO_TYPE_ISSTRUCT (t)) {
2304 /* Valuetype passed in one fp register */
2305 ainfo->regtype = RegTypeStructByValInFP;
2306 /* Fall through */
2307 } else {
2308 if (ainfo->size == 4)
2309 ainfo->regtype = RegTypeFPR4;
2310 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2311 break;
2312 }
2313 case RegTypeStructByVal:
2314 case RegTypeStructByAddr: {
2315 guint32 align;
2316 guint32 size;
2317
2318 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2319 size = sizeof (MonoTypedRef);
2320 align = sizeof (gpointer);
2321 }
2322 else
2323 if (sig->pinvoke)
2324 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2325 else {
2326 /*
2327 * Other backends use mono_type_stack_size (), but that
2328 * aligns the size to 8, which is larger than the size of
2329 * the source, leading to reads of invalid memory if the
2330 * source is at the end of address space.
2331 */
2332 size = mono_class_value_size (in->klass, &align);
2333 }
2334
2335 g_assert (in->klass);
2336
2337 ainfo->offparm += cinfo->sz.offStruct;
2338
2339 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2340 ins->sreg1 = in->dreg;
2341 ins->klass = in->klass;
2342 ins->backend.size = ainfo->size;
2343 ins->inst_p0 = call;
2344 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2345 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2346
2347 MONO_ADD_INS (cfg->cbb, ins);
2348
2349 if (ainfo->regtype == RegTypeStructByAddr) {
2350 /*
2351 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2352 * use the normal OUTARG opcodes to pass the address of the location to
2353 * the callee.
2354 */
2355 int treg = mono_alloc_preg (cfg);
2356 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2357 STK_BASE, ainfo->offparm);
2358 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2359 }
2360 break;
2361 }
2362 case RegTypeBase:
2363 if (!t->byref && t->type == MONO_TYPE_R4) {
2364 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2365 STK_BASE, ainfo->offset + 4,
2366 in->dreg);
2367 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2368 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2369 STK_BASE, ainfo->offset,
2370 in->dreg);
2371 } else {
2372 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2373 ins->inst_destbasereg = STK_BASE;
2374 ins->inst_offset = ainfo->offset;
2375 ins->sreg1 = in->dreg;
2376
2377 /* This is needed by MonoTypedRef->value to point to the correct data */
2378 if ((sig->call_convention == MONO_CALL_VARARG) &&
2379 (i >= sig->sentinelpos)) {
2380 switch (ainfo->size) {
2381 case 1:
2382 ins->opcode = OP_STOREI1_MEMBASE_REG;
2383 break;
2384 case 2:
2385 ins->opcode = OP_STOREI2_MEMBASE_REG;
2386 break;
2387 case 4:
2388 ins->opcode = OP_STOREI4_MEMBASE_REG;
2389 break;
2390 default:
2391 break;
2392 }
2393 }
2394
2395 MONO_ADD_INS (cfg->cbb, ins);
2396 }
2397 break;
2398 default:
2399 g_assert_not_reached ();
2400 break;
2401 }
2402 }
2403
2404 /*
2405 * Handle the case where there are no implicit arguments
2406 */
2407 if ((sig->call_convention == MONO_CALL_VARARG) &&
2408 (i == sig->sentinelpos)) {
2409 emit_sig_cookie2 (cfg, call, cinfo);
2410 }
2411 }
2412
2413 /*========================= End of Function ========================*/
2414
2415 /*------------------------------------------------------------------*/
2416 /* */
2417 /* Name - mono_arch_emit_outarg_vt */
2418 /* */
2419 /*------------------------------------------------------------------*/
2420
2421 void
2422 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2423 {
2424 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2425 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2426 int size = ins->backend.size;
2427
2428 if (ainfo->regtype == RegTypeStructByVal) {
2429 /*
2430 arg->ins.sreg1 = ainfo->reg;
2431 arg->ins.opcode = OP_OUTARG_VT;
2432 arg->size = ainfo->size;
2433 arg->offset = ainfo->offset;
2434 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2435 */
2436 if (ainfo->reg != STK_BASE) {
2437 MONO_OUTPUT_VTR2 (cfg, size, ainfo->reg, src->dreg, 0);
2438 } else {
2439 MONO_OUTPUT_VTS2 (cfg, size, ainfo->reg, ainfo->offset,
2440 src->dreg, 0);
2441 }
2442 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2443 int dreg = mono_alloc_freg (cfg);
2444
2445 if (ainfo->size == 4) {
2446 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2447 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2448 } else {
2449 g_assert (ainfo->size == 8);
2450
2451 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2452 }
2453
2454 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2455 } else {
2456 MONO_EMIT_NEW_MOVE2 (cfg, STK_BASE, ainfo->offparm,
2457 src->dreg, 0, size);
2458 }
2459 }
2460
2461 /*------------------------------------------------------------------*/
2462 /* */
2463 /* Name - mono_arch_emit_setret */
2464 /* */
2465 /*------------------------------------------------------------------*/
2466
2467 void
2468 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2469 {
2470 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2471
2472 if (!ret->byref) {
2473 if (ret->type == MONO_TYPE_R4) {
2474 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2475 return;
2476 } else if (ret->type == MONO_TYPE_R8) {
2477 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2478 return;
2479 }
2480 }
2481
2482 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2483 }
2484
2485 /*========================= End of Function ========================*/
2486
2487 /*------------------------------------------------------------------*/
2488 /* */
2489 /* Name - emit_sig_cookie. */
2490 /* */
2491 /* Function - For variable length parameter lists construct a */
2492 /* signature cookie and emit it. */
2493 /* */
2494 /*------------------------------------------------------------------*/
2495
2496 static void
2497 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call,
2498 CallInfo *cinfo, int argSize)
2499 {
2500 MonoCallArgParm *arg;
2501 MonoMethodSignature *tmpSig;
2502 MonoInst *sigArg;
2503
2504 cfg->disable_aot = TRUE;
2505
2506 /*----------------------------------------------------------*/
2507 /* mono_ArgIterator_Setup assumes the signature cookie is */
2508 /* passed first and all the arguments which were before it */
2509 /* passed on the stack after the signature. So compensate */
2510 /* by passing a different signature. */
2511 /*----------------------------------------------------------*/
2512 tmpSig = mono_metadata_signature_dup (call->signature);
2513 tmpSig->param_count -= call->signature->sentinelpos;
2514 tmpSig->sentinelpos = 0;
2515 if (tmpSig->param_count > 0)
2516 memcpy (tmpSig->params,
2517 call->signature->params + call->signature->sentinelpos,
2518 tmpSig->param_count * sizeof(MonoType *));
2519
2520 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
2521 sigArg->inst_p0 = tmpSig;
2522
2523 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG_MEMBASE);
2524 arg->ins.inst_left = sigArg;
2525 arg->ins.inst_right = (MonoInst *) call;
2526 arg->size = argSize;
2527 arg->offset = cinfo->sigCookie.offset;
2528 arg->ins.next = call->out_args;
2529 call->out_args = (MonoInst *) arg;
2530 }
2531
2532 /*========================= End of Function ========================*/
2533
2534 /*------------------------------------------------------------------*/
2535 /* */
2536 /* Name - mono_arch_instrument_mem_needs */
2537 /* */
2538 /* Function - Allow tracing to work with this interface (with */
2539 /* an optional argument). */
2540 /* */
2541 /*------------------------------------------------------------------*/
2542
2543 void
2544 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2545 {
2546 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2547 *stack = 0;
2548 /* split prolog-epilog requirements? */
2549 *code = 50; /* max bytes needed: check this number */
2550 }
2551
2552 /*========================= End of Function ========================*/
2553
2554 /*------------------------------------------------------------------*/
2555 /* */
2556 /* Name - mono_arch_instrument_prolog */
2557 /* */
2558 /* Function - Create an "instrumented" prolog. */
2559 /* */
2560 /*------------------------------------------------------------------*/
2561
2562 void*
2563 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2564 gboolean enable_arguments)
2565 {
2566 guchar *code = p;
2567 int parmOffset,
2568 fpOffset,
2569 baseReg;
2570
2571 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2572 if (cfg->method->save_lmf)
2573 parmOffset -= sizeof(MonoLMF);
2574 fpOffset = parmOffset + (5*sizeof(gpointer));
2575 if ((!has_ld) && (fpOffset > 4096)) {
2576 s390_lgr (code, s390_r12, STK_BASE);
2577 baseReg = s390_r12;
2578 while (fpOffset > 4096) {
2579 s390_aghi (code, baseReg, 4096);
2580 fpOffset -= 4096;
2581 parmOffset -= 4096;
2582 }
2583 } else {
2584 baseReg = STK_BASE;
2585 }
2586
2587 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2588 if (has_ld) {
2589 s390_stdy (code, s390_f0, 0, STK_BASE, fpOffset);
2590 s390_stdy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2591 s390_stdy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2592 s390_stdy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2593 } else {
2594 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2595 s390_std (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2596 s390_std (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2597 s390_std (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2598 }
2599 s390_basr (code, s390_r13, 0);
2600 s390_j (code, 10);
2601 s390_llong(code, cfg->method);
2602 s390_llong(code, func);
2603 s390_lg (code, s390_r2, 0, s390_r13, 4);
2604 if (has_ld)
2605 s390_lay (code, s390_r3, 0, STK_BASE, parmOffset);
2606 else
2607 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2608 s390_lgr (code, s390_r4, STK_BASE);
2609 s390_aghi (code, s390_r4, cfg->stack_usage);
2610 s390_lg (code, s390_r1, 0, s390_r13, 12);
2611 s390_basr (code, s390_r14, s390_r1);
2612 if (has_ld) {
2613 s390_ldy (code, s390_f6, 0, STK_BASE, fpOffset+3*sizeof(gdouble));
2614 s390_ldy (code, s390_f4, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
2615 s390_ldy (code, s390_f2, 0, STK_BASE, fpOffset+sizeof(gdouble));
2616 s390_ldy (code, s390_f0, 0, STK_BASE, fpOffset);
2617 } else {
2618 s390_ld (code, s390_f6, 0, baseReg, fpOffset+3*sizeof(gdouble));
2619 s390_ld (code, s390_f4, 0, baseReg, fpOffset+2*sizeof(gdouble));
2620 s390_ld (code, s390_f2, 0, baseReg, fpOffset+sizeof(gdouble));
2621 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2622 }
2623 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
2624
2625 return code;
2626 }
2627
2628 /*========================= End of Function ========================*/
2629
2630 /*------------------------------------------------------------------*/
2631 /* */
2632 /* Name - mono_arch_instrument_epilog */
2633 /* */
2634 /* Function - Create an epilog that will handle the returned */
2635 /* values used in instrumentation. */
2636 /* */
2637 /*------------------------------------------------------------------*/
2638
2639 void*
2640 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2641 {
2642 guchar *code = p;
2643 int save_mode = SAVE_NONE,
2644 saveOffset;
2645 MonoMethod *method = cfg->method;
2646 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2647
2648 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2649 if (method->save_lmf)
2650 saveOffset -= sizeof(MonoLMF);
2651
2652 handle_enum:
2653 switch (rtype) {
2654 case MONO_TYPE_VOID:
2655 /* special case string .ctor icall */
2656 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2657 save_mode = SAVE_ONE;
2658 else
2659 save_mode = SAVE_NONE;
2660 break;
2661 case MONO_TYPE_I8:
2662 case MONO_TYPE_U8:
2663 save_mode = SAVE_ONE;
2664 break;
2665 case MONO_TYPE_R4:
2666 save_mode = SAVE_R4;
2667 break;
2668 case MONO_TYPE_R8:
2669 save_mode = SAVE_R8;
2670 break;
2671 case MONO_TYPE_VALUETYPE:
2672 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2673 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
2674 goto handle_enum;
2675 }
2676 save_mode = SAVE_STRUCT;
2677 break;
2678 default:
2679 save_mode = SAVE_ONE;
2680 break;
2681 }
2682
2683 switch (save_mode) {
2684 case SAVE_ONE:
2685 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2686 if (enable_arguments) {
2687 s390_lgr (code, s390_r3, s390_r2);
2688 }
2689 break;
2690 case SAVE_R4:
2691 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2692 if (enable_arguments) {
2693 s390_ldebr (code, s390_f0, s390_f0);
2694 }
2695 break;
2696 case SAVE_R8:
2697 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2698 break;
2699 case SAVE_STRUCT:
2700 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2701 if (enable_arguments) {
2702 s390_lg (code, s390_r3, 0, cfg->frame_reg,
2703 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2704 }
2705 break;
2706 case SAVE_NONE:
2707 default:
2708 break;
2709 }
2710
2711 s390_basr (code, s390_r13, 0);
2712 s390_j (code, 10);
2713 s390_llong(code, cfg->method);
2714 s390_llong(code, func);
2715 s390_lg (code, s390_r2, 0, s390_r13, 4);
2716 s390_lg (code, s390_r1, 0, s390_r13, 12);
2717 s390_basr (code, s390_r14, s390_r1);
2718
2719 switch (save_mode) {
2720 case SAVE_ONE:
2721 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2722 break;
2723 case SAVE_R4:
2724 case SAVE_R8:
2725 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2726 break;
2727 case SAVE_STRUCT:
2728 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2729 break;
2730 case SAVE_NONE:
2731 default:
2732 break;
2733 }
2734
2735 return code;
2736 }
2737
2738 /*========================= End of Function ========================*/
2739
2740 void
2741 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2742 {
2743 }
2744
2745 /*------------------------------------------------------------------*/
2746 /* */
2747 /* Name - mono_arch_peephole_pass */
2748 /* */
2749 /* Function - Form a peephole pass at the code looking for */
2750 /* simple optimizations. */
2751 /* */
2752 /*------------------------------------------------------------------*/
2753
2754 void
2755 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2756 {
2757 MonoInst *ins, *n;
2758
2759 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2760 mono_peephole_ins (bb, ins);
2761 }
2762 }
2763
2764 /*========================= End of Function ========================*/
2765
2766 void
2767 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2768 {
2769 MonoInst *ins, *next;
2770
2771 if (bb->max_vreg > cfg->rs->next_vreg)
2772 cfg->rs->next_vreg = bb->max_vreg;
2773
2774 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2775 switch (ins->opcode) {
2776 case OP_DIV_IMM:
2777 case OP_REM_IMM:
2778 case OP_IDIV_IMM:
2779 case OP_IREM_IMM:
2780 case OP_IDIV_UN_IMM:
2781 case OP_IREM_UN_IMM:
2782 case OP_LAND_IMM:
2783 case OP_LOR_IMM:
2784 case OP_LXOR_IMM:
2785 case OP_LOCALLOC_IMM:
2786 mono_decompose_op_imm (cfg, bb, ins);
2787 break;
2788 case OP_LADD_IMM:
2789 if (!s390_is_imm16 (ins->inst_imm))
2790 /* This is created by the memcpy code which ignores is_inst_imm */
2791 mono_decompose_op_imm (cfg, bb, ins);
2792 break;
2793 default:
2794 break;
2795 }
2796 }
2797
2798 bb->max_vreg = cfg->rs->next_vreg;
2799 }
2800
2801 /*========================= End of Function ========================*/
2802
2803 /*------------------------------------------------------------------*/
2804 /* */
2805 /* Name - emit_float_to_int */
2806 /* */
2807 /* Function - Create instructions which will convert a floating */
2808 /* point value to integer. */
2809 /* */
2810 /*------------------------------------------------------------------*/
2811
2812 static guchar*
2813 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2814 {
2815 /* sreg is a float, dreg is an integer reg. */
2816 if (is_signed) {
2817 s390_cfdbr (code, dreg, 5, sreg);
2818 switch (size) {
2819 case 1:
2820 s390_lghi (code, s390_r0, 0);
2821 s390_lghi (code, s390_r13, 0xff);
2822 s390_ltgr (code, dreg, dreg);
2823 s390_jnl (code, 4);
2824 s390_lghi (code, s390_r0, 0x80);
2825 s390_ngr (code, dreg, s390_r13);
2826 s390_ogr (code, dreg, s390_r0);
2827 break;
2828 }
2829 } else {
2830 short *o[1];
2831 s390_basr (code, s390_r13, 0);
2832 s390_j (code, 10);
2833 s390_llong (code, 0x41e0000000000000);
2834 s390_llong (code, 0x41f0000000000000);
2835 s390_ldr (code, s390_f15, sreg);
2836 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2837 s390_jl (code, 0); CODEPTR (code, o[0]);
2838 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2839 s390_cfdbr (code, dreg, 7, s390_f15);
2840 s390_j (code, 4);
2841 PTRSLOT (code, o[0]);
2842 s390_cfdbr (code, dreg, 5, sreg);
2843 switch (size) {
2844 case 1:
2845 s390_lghi (code, s390_r0, 0xff);
2846 s390_ngr (code, dreg, s390_r0);
2847 break;
2848 case 2:
2849 s390_lghi (code, s390_r0, -1);
2850 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2851 s390_ngr (code, dreg, s390_r0);
2852 break;
2853 }
2854 }
2855 return code;
2856 }
2857
2858 /*========================= End of Function ========================*/
2859
2860 static gboolean is_unsigned (MonoInst *next)
2861 {
2862 if ((next) &&
2863 (((next->opcode >= OP_IBNE_UN) &&
2864 (next->opcode <= OP_IBLT_UN)) ||
2865 ((next->opcode >= OP_LBNE_UN) &&
2866 (next->opcode <= OP_LBLT_UN)) ||
2867 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2868 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2869 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2870 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2871 ((next->opcode == OP_CLT_UN) ||
2872 (next->opcode == OP_CGT_UN)) ||
2873 ((next->opcode == OP_ICLT_UN) ||
2874 (next->opcode == OP_ICGT_UN) ||
2875 (next->opcode == OP_LCLT_UN) ||
2876 (next->opcode == OP_LCGT_UN))))
2877 return TRUE;
2878 else
2879 return FALSE;
2880 }
2881
2882 /*------------------------------------------------------------------*/
2883 /* */
2884 /* Name - mono_arch_output_basic_block */
2885 /* */
2886 /* Function - Perform the "real" work of emitting instructions */
2887 /* that will do the work of in the basic block. */
2888 /* */
2889 /*------------------------------------------------------------------*/
2890
2891 void
2892 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2893 {
2894 MonoInst *ins;
2895 MonoCallInst *call;
2896 guint offset;
2897 guint8 *code = cfg->native_code + cfg->code_len;
2898 guint last_offset = 0;
2899 int max_len, cpos, src2;
2900
2901 /* we don't align basic blocks of loops on s390 */
2902
2903 if (cfg->verbose_level > 2)
2904 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2905
2906 cpos = bb->max_offset;
2907
2908 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2909 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2910 //g_assert (!mono_compile_aot);
2911 //cpos += 6;
2912 //if (bb->cil_code)
2913 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2914 /* this is not thread save, but good enough */
2915 /* fixme: howto handle overflows? */
2916 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2917 }
2918
2919 MONO_BB_FOR_EACH_INS (bb, ins) {
2920 offset = code - cfg->native_code;
2921
2922 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2923
2924 if (offset > (cfg->code_size - max_len - 16)) {
2925 cfg->code_size *= 2;
2926 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2927 code = cfg->native_code + offset;
2928 }
2929
2930 mono_debug_record_line_number (cfg, ins, offset);
2931
2932 switch (ins->opcode) {
2933 case OP_STOREI1_MEMBASE_IMM: {
2934 s390_lghi (code, s390_r0, ins->inst_imm);
2935 S390_LONG (code, stcy, stc, s390_r0, 0,
2936 ins->inst_destbasereg, ins->inst_offset);
2937 }
2938 break;
2939 case OP_STOREI2_MEMBASE_IMM: {
2940 s390_lghi (code, s390_r0, ins->inst_imm);
2941 S390_LONG (code, sthy, sth, s390_r0, 0,
2942 ins->inst_destbasereg, ins->inst_offset);
2943 }
2944 break;
2945 case OP_STOREI4_MEMBASE_IMM: {
2946 if (s390_is_imm16(ins->inst_imm)) {
2947 s390_lghi (code, s390_r0, ins->inst_imm);
2948 } else {
2949 s390_basr (code, s390_r13, 0);
2950 s390_j (code, 6);
2951 s390_llong(code, ins->inst_imm);
2952 s390_lg (code, s390_r0, 0, s390_r13, 4);
2953 }
2954 S390_LONG (code, sty, st, s390_r0, 0,
2955 ins->inst_destbasereg, ins->inst_offset);
2956 }
2957 break;
2958 case OP_STORE_MEMBASE_IMM:
2959 case OP_STOREI8_MEMBASE_IMM: {
2960 if (s390_is_imm16(ins->inst_imm)) {
2961 s390_lghi (code, s390_r0, ins->inst_imm);
2962 } else {
2963 s390_basr (code, s390_r13, 0);
2964 s390_j (code, 6);
2965 s390_llong(code, ins->inst_imm);
2966 s390_lg (code, s390_r0, 0, s390_r13, 4);
2967 }
2968 S390_LONG (code, stg, stg, s390_r0, 0,
2969 ins->inst_destbasereg, ins->inst_offset);
2970 }
2971 break;
2972 case OP_STOREI1_MEMBASE_REG: {
2973 S390_LONG (code, stcy, stc, ins->sreg1, 0,
2974 ins->inst_destbasereg, ins->inst_offset);
2975 }
2976 break;
2977 case OP_STOREI2_MEMBASE_REG: {
2978 S390_LONG (code, sthy, sth, ins->sreg1, 0,
2979 ins->inst_destbasereg, ins->inst_offset);
2980 }
2981 break;
2982 case OP_STOREI4_MEMBASE_REG: {
2983 S390_LONG (code, sty, st, ins->sreg1, 0,
2984 ins->inst_destbasereg, ins->inst_offset);
2985 }
2986 break;
2987 case OP_STORE_MEMBASE_REG:
2988 case OP_STOREI8_MEMBASE_REG: {
2989 S390_LONG (code, stg, stg, ins->sreg1, 0,
2990 ins->inst_destbasereg, ins->inst_offset);
2991 }
2992 break;
2993 case OP_LOADU4_MEM:
2994 g_assert_not_reached ();
2995 break;
2996 case OP_LOAD_MEMBASE:
2997 case OP_LOADI8_MEMBASE: {
2998 S390_LONG (code, lg, lg, ins->dreg, 0,
2999 ins->inst_basereg, ins->inst_offset);
3000 }
3001 break;
3002 case OP_LOADI4_MEMBASE: {
3003 S390_LONG (code, lgf, lgf, ins->dreg, 0,
3004 ins->inst_basereg, ins->inst_offset);
3005 }
3006 break;
3007 case OP_LOADU4_MEMBASE: {
3008 S390_LONG (code, llgf, llgf, ins->dreg, 0,
3009 ins->inst_basereg, ins->inst_offset);
3010 }
3011 break;
3012 case OP_LOADU1_MEMBASE: {
3013 S390_LONG (code, llgc, llgc, ins->dreg, 0,
3014 ins->inst_basereg, ins->inst_offset);
3015 }
3016 break;
3017 case OP_LOADI1_MEMBASE: {
3018 S390_LONG (code, lgb, lgb, ins->dreg, 0,
3019 ins->inst_basereg, ins->inst_offset);
3020 }
3021 break;
3022 case OP_LOADU2_MEMBASE: {
3023 S390_LONG (code, llgh, llgh, ins->dreg, 0,
3024 ins->inst_basereg, ins->inst_offset);
3025 }
3026 break;
3027 case OP_LOADI2_MEMBASE: {
3028 S390_LONG (code, lgh, lgh, ins->dreg, 0,
3029 ins->inst_basereg, ins->inst_offset);
3030 }
3031 break;
3032 case OP_LCONV_TO_I1: {
3033 s390_lghi (code, s390_r0, 0x80);
3034 if (ins->dreg != ins->sreg1) {
3035 s390_lgr (code, ins->dreg, ins->sreg1);
3036 }
3037 s390_ngr (code, s390_r0, ins->sreg1);
3038 s390_jz (code, 9);
3039 s390_lghi (code, s390_r13, -1);
3040 s390_sllg (code, s390_r13, s390_r13, 0, 8);
3041 s390_ogr (code, ins->dreg, s390_r13);
3042 }
3043 break;
3044 case OP_LCONV_TO_I2: {
3045 s390_lghi (code, s390_r0, 0x80);
3046 s390_sllg (code, s390_r0, s390_r0, 0, 8);
3047 if (ins->dreg != ins->sreg1) {
3048 s390_lgr (code, ins->dreg, ins->sreg1);
3049 }
3050 s390_ngr (code, s390_r0, ins->sreg1);
3051 s390_jz (code, 9);
3052 s390_lghi (code, s390_r13, -1);
3053 s390_sllg (code, s390_r13, s390_r13, 0, 16);
3054 s390_ogr (code, ins->dreg, s390_r13);
3055 }
3056 break;
3057 case OP_LCONV_TO_U1: {
3058 s390_lghi (code, s390_r0, 0xff);
3059 if (ins->dreg != ins->sreg1) {
3060 s390_lgr (code, ins->dreg, ins->sreg1);
3061 }
3062 s390_ngr (code, ins->dreg, s390_r0);
3063 }
3064 break;
3065 case OP_LCONV_TO_U2: {
3066 s390_lghi (code, s390_r0, -1);
3067 s390_sllg (code, s390_r0, s390_r0, 0, 16);
3068 s390_srlg (code, s390_r0, s390_r0, 0, 16);
3069 if (ins->dreg != ins->sreg1) {
3070 s390_lgr (code, ins->dreg, ins->sreg1);
3071 }
3072 s390_ngr (code, ins->dreg, s390_r0);
3073 }
3074 break;
3075 case OP_ICONV_TO_I1: {
3076 s390_lhi (code, s390_r0, 0x80);
3077 if (ins->dreg != ins->sreg1) {
3078 s390_lr (code, ins->dreg, ins->sreg1);
3079 }
3080 s390_nr (code, s390_r0, ins->sreg1);
3081 s390_jz (code, 7);
3082 s390_lhi (code, s390_r13, -1);
3083 s390_sll (code, s390_r13, 0, 8);
3084 s390_or (code, ins->dreg, s390_r13);
3085 }
3086 break;
3087 case OP_ICONV_TO_I2: {
3088 s390_lhi (code, s390_r0, 0x80);
3089 s390_sll (code, s390_r0, 0, 8);
3090 if (ins->dreg != ins->sreg1) {
3091 s390_lr (code, ins->dreg, ins->sreg1);
3092 }
3093 s390_nr (code, s390_r0, ins->sreg1);
3094 s390_jz (code, 7);
3095 s390_lhi (code, s390_r13, -1);
3096 s390_sll (code, s390_r13, 0, 16);
3097 s390_or (code, ins->dreg, s390_r13);
3098 }
3099 break;
3100 case OP_ICONV_TO_U1: {
3101 s390_lhi (code, s390_r0, 0xff);
3102 if (ins->dreg != ins->sreg1) {
3103 s390_lr (code, ins->dreg, ins->sreg1);
3104 }
3105 s390_nr (code, ins->dreg, s390_r0);
3106 }
3107 break;
3108 case OP_ICONV_TO_U2: {
3109 s390_lhi (code, s390_r0, -1);
3110 s390_sll (code, s390_r0, 0, 16);
3111 s390_srl (code, s390_r0, 0, 16);
3112 if (ins->dreg != ins->sreg1) {
3113 s390_lr (code, ins->dreg, ins->sreg1);
3114 }
3115 s390_nr (code, ins->dreg, s390_r0);
3116 }
3117 break;
3118 case OP_COMPARE:
3119 case OP_LCOMPARE: {
3120 if (is_unsigned (ins->next))
3121 s390_clgr (code, ins->sreg1, ins->sreg2);
3122 else
3123 s390_cgr (code, ins->sreg1, ins->sreg2);
3124 }
3125 break;
3126 case OP_ICOMPARE: {
3127 if (is_unsigned (ins->next))
3128 s390_clr (code, ins->sreg1, ins->sreg2);
3129 else
3130 s390_cr (code, ins->sreg1, ins->sreg2);
3131 }
3132 break;
3133 case OP_COMPARE_IMM:
3134 case OP_LCOMPARE_IMM: {
3135 if (s390_is_imm16 (ins->inst_imm)) {
3136 s390_lghi (code, s390_r0, ins->inst_imm);
3137 if (is_unsigned (ins->next))
3138 s390_clgr (code, ins->sreg1, s390_r0);
3139 else
3140 s390_cgr (code, ins->sreg1, s390_r0);
3141 } else {
3142 s390_basr (code, s390_r13, 0);
3143 s390_j (code, 6);
3144 s390_llong(code, ins->inst_imm);
3145 if (is_unsigned (ins->next))
3146 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3147 else
3148 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3149 }
3150 }
3151 break;
3152 case OP_ICOMPARE_IMM: {
3153 if (s390_is_imm16 (ins->inst_imm)) {
3154 s390_lghi (code, s390_r0, ins->inst_imm);
3155 if (is_unsigned (ins->next))
3156 s390_clr (code, ins->sreg1, s390_r0);
3157 else
3158 s390_cr (code, ins->sreg1, s390_r0);
3159 }
3160 else {
3161 s390_basr (code, s390_r13, 0);
3162 s390_j (code, 4);
3163 s390_word (code, ins->inst_imm);
3164 if (is_unsigned (ins->next))
3165 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
3166 else
3167 s390_c (code, ins->sreg1, 0, s390_r13, 4);
3168 }
3169 }
3170 break;
3171 case OP_BREAK: {
3172 s390_basr (code, s390_r13, 0);
3173 s390_j (code, 6);
3174 mono_add_patch_info (cfg, code - cfg->native_code, MONO_PATCH_INFO_ABS,
3175 mono_break);
3176 s390_llong (code, mono_break);
3177 s390_lg (code, s390_r14, 0, s390_r13, 4);
3178 s390_basr (code, s390_r14, s390_r14);
3179 }
3180 break;
3181 case OP_ADDCC: {
3182 CHECK_SRCDST_COM;
3183 s390_agr (code, ins->dreg, src2);
3184 }
3185 break;
3186 case OP_LADD: {
3187 CHECK_SRCDST_COM;
3188 s390_agr (code, ins->dreg, src2);
3189 }
3190 break;
3191 case OP_ADC: {
3192 CHECK_SRCDST_COM;
3193 s390_alcgr (code, ins->dreg, src2);
3194 }
3195 break;
3196 case OP_ADD_IMM: {
3197 if (ins->dreg != ins->sreg1) {
3198 s390_lgr (code, ins->dreg, ins->sreg1);
3199 }
3200 if (s390_is_imm16 (ins->inst_imm)) {
3201 s390_aghi (code, ins->dreg, ins->inst_imm);
3202 } else {
3203 s390_basr (code, s390_r13, 0);
3204 s390_j (code, 6);
3205 s390_llong(code, ins->inst_imm);
3206 s390_ag (code, ins->dreg, 0, s390_r13, 4);
3207 }
3208 }
3209 break;
3210 case OP_LADD_IMM: {
3211 if (ins->dreg != ins->sreg1) {
3212 s390_lgr (code, ins->dreg, ins->sreg1);
3213 }
3214 g_assert (s390_is_imm16 (ins->inst_imm));
3215 s390_aghi (code, ins->dreg, ins->inst_imm);
3216 }
3217 break;
3218 case OP_ADC_IMM: {
3219 if (ins->dreg != ins->sreg1) {
3220 s390_lgr (code, ins->dreg, ins->sreg1);
3221 }
3222 if (s390_is_imm16 (ins->inst_imm)) {
3223 s390_lghi (code, s390_r0, ins->inst_imm);
3224 s390_alcgr (code, ins->dreg, s390_r0);
3225 } else {
3226 s390_basr (code, s390_r13, 0);
3227 s390_j (code, 6);
3228 s390_llong (code, ins->inst_imm);
3229 s390_lg (code, s390_r13, 0, s390_r13, 4);
3230 s390_alcgr (code, ins->dreg, s390_r13);
3231 }
3232 }
3233 break;
3234 case OP_IADD_OVF:
3235 case OP_S390_IADD_OVF: {
3236 CHECK_SRCDST_COM;
3237 s390_ar (code, ins->dreg, src2);
3238 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3239 s390_lgfr (code, ins->dreg, ins->dreg);
3240 }
3241 break;
3242 case OP_IADD_OVF_UN:
3243 case OP_S390_IADD_OVF_UN: {
3244 CHECK_SRCDST_COM;
3245 s390_algr (code, ins->dreg, src2);
3246 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3247 s390_llgfr (code, ins->dreg, ins->dreg);
3248 }
3249 break;
3250 case OP_ADD_OVF_CARRY: {
3251 CHECK_SRCDST_COM;
3252 s390_lghi (code, s390_r0, 0);
3253 s390_lgr (code, s390_r1, s390_r0);
3254 s390_alcgr (code, s390_r0, s390_r1);
3255 s390_agr (code, ins->dreg, src2);
3256 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3257 s390_agr (code, ins->dreg, s390_r0);
3258 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3259 }
3260 break;
3261 case OP_ADD_OVF_UN_CARRY: {
3262 CHECK_SRCDST_COM;
3263 s390_alcgr (code, ins->dreg, src2);
3264 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3265 }
3266 break;
3267 case OP_SUBCC: {
3268 CHECK_SRCDST_NCOM;
3269 s390_sgr (code, ins->dreg, src2);
3270 }
3271 break;
3272 case OP_LSUB: {
3273 CHECK_SRCDST_NCOM;
3274 s390_sgr (code, ins->dreg, src2);
3275 }
3276 break;
3277 case OP_SBB: {
3278 CHECK_SRCDST_NCOM;
3279 s390_slbgr(code, ins->dreg, src2);
3280 }
3281 break;
3282 case OP_SUB_IMM: {
3283 if (ins->dreg != ins->sreg1) {
3284 s390_lgr (code, ins->dreg, ins->sreg1);
3285 }
3286 if (s390_is_imm16 (-ins->inst_imm)) {
3287 s390_lghi (code, s390_r0, ins->inst_imm);
3288 s390_slgr (code, ins->dreg, s390_r0);
3289 } else {
3290 s390_basr (code, s390_r13, 0);
3291 s390_j (code, 6);
3292 s390_llong(code, ins->inst_imm);
3293 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3294 }
3295 }
3296 break;
3297 case OP_LSUB_IMM: {
3298 if (ins->dreg != ins->sreg1) {
3299 s390_lgr (code, ins->dreg, ins->sreg1);
3300 }
3301 if (s390_is_imm16 (-ins->inst_imm)) {
3302 s390_lghi (code, s390_r0, ins->inst_imm);
3303 s390_slgr (code, ins->dreg, s390_r0);
3304 } else {
3305 s390_basr (code, s390_r13, 0);
3306 s390_j (code, 6);
3307 s390_llong(code, ins->inst_imm);
3308 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3309 }
3310 }
3311 break;
3312 case OP_SBB_IMM: {
3313 if (ins->dreg != ins->sreg1) {
3314 s390_lgr (code, ins->dreg, ins->sreg1);
3315 }
3316 if (s390_is_imm16 (-ins->inst_imm)) {
3317 s390_lghi (code, s390_r0, ins->inst_imm);
3318 s390_slbgr (code, ins->dreg, s390_r0);
3319 } else {
3320 s390_basr (code, s390_r13, 0);
3321 s390_j (code, 6);
3322 s390_llong(code, ins->inst_imm);
3323 s390_slbg (code, ins->dreg, 0, s390_r13, 4);
3324 }
3325 }
3326 break;
3327 case OP_SUB_OVF_CARRY: {
3328 CHECK_SRCDST_NCOM;
3329 s390_lghi (code, s390_r0, 0);
3330 s390_lgr (code, s390_r1, s390_r0);
3331 s390_slbgr (code, s390_r0, s390_r1);
3332 s390_sgr (code, ins->dreg, src2);
3333 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3334 s390_agr (code, ins->dreg, s390_r0);
3335 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3336 }
3337 break;
3338 case OP_SUB_OVF_UN_CARRY: {
3339 CHECK_SRCDST_NCOM;
3340 s390_slbgr (code, ins->dreg, src2);
3341 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3342 }
3343 break;
3344 case OP_LAND: {
3345 if (ins->sreg1 == ins->dreg) {
3346 s390_ngr (code, ins->dreg, ins->sreg2);
3347 }
3348 else {
3349 if (ins->sreg2 == ins->dreg) {
3350 s390_ngr (code, ins->dreg, ins->sreg1);
3351 }
3352 else {
3353 s390_lgr (code, ins->dreg, ins->sreg1);
3354 s390_ngr (code, ins->dreg, ins->sreg2);
3355 }
3356 }
3357 }
3358 break;
3359 case OP_AND_IMM: {
3360 if (ins->dreg != ins->sreg1) {
3361 s390_lgr (code, ins->dreg, ins->sreg1);
3362 }
3363 if (s390_is_imm16 (ins->inst_imm)) {
3364 s390_lghi (code, s390_r0, ins->inst_imm);
3365 s390_ngr (code, ins->dreg, s390_r0);
3366 } else {
3367 s390_basr (code, s390_r13, 0);
3368 s390_j (code, 6);
3369 s390_llong(code, ins->inst_imm);
3370 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3371 }
3372 }
3373 break;
3374 case OP_LDIV: {
3375 s390_lgr (code, s390_r1, ins->sreg1);
3376 s390_dsgr (code, s390_r0, ins->sreg2);
3377 s390_lgr (code, ins->dreg, s390_r1);
3378 }
3379 break;
3380 case OP_LDIV_UN: {
3381 s390_lgr (code, s390_r1, ins->sreg1);
3382 s390_lghi (code, s390_r0, 0);
3383 s390_dlgr (code, s390_r0, ins->sreg2);
3384 s390_lgr (code, ins->dreg, s390_r1);
3385 }
3386 break;
3387 case OP_LREM: {
3388 s390_lgr (code, s390_r1, ins->sreg1);
3389 s390_dsgr (code, s390_r0, ins->sreg2);
3390 s390_lgr (code, ins->dreg, s390_r0);
3391 break;
3392 }
3393 case OP_LREM_UN: {
3394 s390_lgr (code, s390_r1, ins->sreg1);
3395 s390_lghi (code, s390_r0, 0);
3396 s390_dlgr (code, s390_r0, ins->sreg2);
3397 s390_lgr (code, ins->dreg, s390_r0);
3398 }
3399 break;
3400 case OP_LOR: {
3401 if (ins->sreg1 == ins->dreg) {
3402 s390_ogr (code, ins->dreg, ins->sreg2);
3403 }
3404 else {
3405 if (ins->sreg2 == ins->dreg) {
3406 s390_ogr (code, ins->dreg, ins->sreg1);
3407 }
3408 else {
3409 s390_lgr (code, ins->dreg, ins->sreg1);
3410 s390_ogr (code, ins->dreg, ins->sreg2);
3411 }
3412 }
3413 }
3414 break;
3415 case OP_OR_IMM: {
3416 if (ins->dreg != ins->sreg1) {
3417 s390_lgr (code, ins->dreg, ins->sreg1);
3418 }
3419 if (s390_is_imm16 (ins->inst_imm)) {
3420 s390_lghi (code, s390_r0, ins->inst_imm);
3421 s390_ogr (code, ins->dreg, s390_r0);
3422 } else {
3423 s390_basr (code, s390_r13, 0);
3424 s390_j (code, 6);
3425 s390_llong(code, ins->inst_imm);
3426 s390_og (code, ins->dreg, 0, s390_r13, 4);
3427 }
3428 }
3429 break;
3430 case OP_LXOR: {
3431 if (ins->sreg1 == ins->dreg) {
3432 s390_xgr (code, ins->dreg, ins->sreg2);
3433 }
3434 else {
3435 if (ins->sreg2 == ins->dreg) {
3436 s390_xgr (code, ins->dreg, ins->sreg1);
3437 }
3438 else {
3439 s390_lgr (code, ins->dreg, ins->sreg1);
3440 s390_xgr (code, ins->dreg, ins->sreg2);
3441 }
3442 }
3443 }
3444 break;
3445 case OP_XOR_IMM: {
3446 if (ins->dreg != ins->sreg1) {
3447 s390_lgr (code, ins->dreg, ins->sreg1);
3448 }
3449 if (s390_is_imm16 (ins->inst_imm)) {
3450 s390_lghi (code, s390_r0, ins->inst_imm);
3451 s390_xgr (code, ins->dreg, s390_r0);
3452 } else {
3453 s390_basr (code, s390_r13, 0);
3454 s390_j (code, 6);
3455 s390_llong(code, ins->inst_imm);
3456 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3457 }
3458 }
3459 break;
3460 case OP_LSHL: {
3461 CHECK_SRCDST_NCOM;
3462 s390_sllg (code, ins->dreg, ins->dreg, src2, 0);
3463 }
3464 break;
3465 case OP_SHL_IMM:
3466 case OP_LSHL_IMM: {
3467 if (ins->sreg1 != ins->dreg) {
3468 s390_lgr (code, ins->dreg, ins->sreg1);
3469 }
3470 s390_sllg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3471 }
3472 break;
3473 case OP_LSHR: {
3474 CHECK_SRCDST_NCOM;
3475 s390_srag (code, ins->dreg, ins->dreg, src2, 0);
3476 }
3477 break;
3478 case OP_SHR_IMM:
3479 case OP_LSHR_IMM: {
3480 if (ins->sreg1 != ins->dreg) {
3481 s390_lgr (code, ins->dreg, ins->sreg1);
3482 }
3483 s390_srag (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3484 }
3485 break;
3486 case OP_SHR_UN_IMM:
3487 case OP_LSHR_UN_IMM: {
3488 if (ins->sreg1 != ins->dreg) {
3489 s390_lgr (code, ins->dreg, ins->sreg1);
3490 }
3491 s390_srlg (code, ins->dreg, ins->dreg, 0, (ins->inst_imm & 0x3f));
3492 }
3493 break;
3494 case OP_LSHR_UN: {
3495 CHECK_SRCDST_NCOM;
3496 s390_srlg (code, ins->dreg, ins->dreg, src2, 0);
3497 }
3498 break;
3499 case OP_LNOT: {
3500 if (ins->sreg1 != ins->dreg) {
3501 s390_lgr (code, ins->dreg, ins->sreg1);
3502 }
3503 s390_lghi (code, s390_r0, -1);
3504 s390_xgr (code, ins->dreg, s390_r0);
3505 }
3506 break;
3507 case OP_LNEG: {
3508 s390_lcgr (code, ins->dreg, ins->sreg1);
3509 }
3510 break;
3511 case OP_LMUL: {
3512 CHECK_SRCDST_COM;
3513 s390_msgr (code, ins->dreg, src2);
3514 }
3515 break;
3516 case OP_MUL_IMM:
3517 case OP_LMUL_IMM: {
3518 if (ins->dreg != ins->sreg1) {
3519 s390_lgr (code, ins->dreg, ins->sreg1);
3520 }
3521 if (s390_is_imm16 (ins->inst_imm)) {
3522 s390_lghi (code, s390_r13, ins->inst_imm);
3523 } else {
3524 s390_basr (code, s390_r13, 0);
3525 s390_j (code, 6);
3526 s390_llong(code, ins->inst_imm);
3527 s390_lg (code, s390_r13, 0, s390_r13, 4);
3528 }
3529 s390_msgr (code, ins->dreg, s390_r13);
3530 }
3531 break;
3532 case OP_LMUL_OVF: {
3533 short int *o[2];
3534 s390_ltgr (code, s390_r1, ins->sreg1);
3535 s390_jz (code, 0); CODEPTR(code, o[0]);
3536 s390_ltgr (code, s390_r0, ins->sreg2);
3537 s390_jnz (code, 6);
3538 s390_lghi (code, s390_r1, 0);
3539 s390_j (code, 0); CODEPTR(code, o[1]);
3540 s390_xgr (code, s390_r0, s390_r1);
3541 s390_msgr (code, s390_r1, ins->sreg2);
3542 s390_xgr (code, s390_r0, s390_r1);
3543 s390_srlg (code, s390_r0, s390_r0, 0, 63);
3544 s390_ltgr (code, s390_r0, s390_r0);
3545 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3546 PTRSLOT (code, o[0]);
3547 PTRSLOT (code, o[1]);
3548 s390_lgr (code, ins->dreg, s390_r1);
3549 }
3550 break;
3551 case OP_LMUL_OVF_UN: {
3552 s390_lghi (code, s390_r0, 0);
3553 s390_lgr (code, s390_r1, ins->sreg1);
3554 s390_mlgr (code, s390_r0, ins->sreg2);
3555 s390_ltgr (code, s390_r0, s390_r0);
3556 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3557 s390_lgr (code, ins->dreg, s390_r1);
3558 }
3559 break;
3560 case OP_IADDCC: {
3561 g_assert_not_reached ();
3562 CHECK_SRCDST_COM_I;
3563 s390_algr (code, ins->dreg, src2);
3564 }
3565 break;
3566 case OP_IADD: {
3567 CHECK_SRCDST_COM_I;
3568 s390_agr (code, ins->dreg, src2);
3569 }
3570 break;
3571 case OP_IADC: {
3572 g_assert_not_reached ();
3573 CHECK_SRCDST_COM_I;
3574 s390_alcgr (code, ins->dreg, src2);
3575 }
3576 break;
3577 case OP_IADD_IMM: {
3578 if (ins->dreg != ins->sreg1) {
3579 s390_lgfr (code, ins->dreg, ins->sreg1);
3580 }
3581 if (s390_is_imm16 (ins->inst_imm)) {
3582 s390_aghi(code, ins->dreg, ins->inst_imm);
3583 } else {
3584 s390_basr (code, s390_r13, 0);
3585 s390_j (code, 4);
3586 s390_word (code, ins->inst_imm);
3587 s390_agf (code, ins->dreg, 0, s390_r13, 4);
3588 }
3589 }
3590 break;
3591 case OP_IADC_IMM: {
3592 if (ins->dreg != ins->sreg1) {
3593 s390_lgfr (code, ins->dreg, ins->sreg1);
3594 }
3595 if (s390_is_imm16 (ins->inst_imm)) {
3596 s390_lghi (code, s390_r0, ins->inst_imm);
3597 s390_alcgr (code, ins->dreg, s390_r0);
3598 } else {
3599 s390_basr (code, s390_r13, 0);
3600 s390_j (code, 4);
3601 s390_word (code, ins->inst_imm);
3602 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3603 s390_alcgr (code, ins->dreg, s390_r13);
3604 }
3605 }
3606 break;
3607 case OP_LADD_OVF:
3608 case OP_S390_LADD_OVF: {
3609 CHECK_SRCDST_COM;
3610 s390_agr (code, ins->dreg, src2);
3611 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3612 }
3613 break;
3614 case OP_LADD_OVF_UN:
3615 case OP_S390_LADD_OVF_UN: {
3616 CHECK_SRCDST_COM;
3617 s390_algr (code, ins->dreg, src2);
3618 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3619 }
3620 break;
3621 case OP_ISUBCC: {
3622 CHECK_SRCDST_NCOM_I;
3623 s390_slgr (code, ins->dreg, src2);
3624 }
3625 break;
3626 case OP_ISUB: {
3627 CHECK_SRCDST_NCOM_I;
3628 s390_sgr (code, ins->dreg, src2);
3629 }
3630 break;
3631 case OP_ISBB: {
3632 CHECK_SRCDST_NCOM_I;
3633 s390_slbgr (code, ins->dreg, src2);
3634 }
3635 break;
3636 case OP_ISUB_IMM: {
3637 if (ins->dreg != ins->sreg1) {
3638 s390_lgfr (code, ins->dreg, ins->sreg1);
3639 }
3640 if (s390_is_imm16 (-ins->inst_imm)) {
3641 s390_aghi (code, ins->dreg, -ins->inst_imm);
3642 } else {
3643 s390_basr (code, s390_r13, 0);
3644 s390_j (code, 4);
3645 s390_word (code, ins->inst_imm);
3646 s390_sgf (code, ins->dreg, 0, s390_r13, 4);
3647 }
3648 }
3649 break;
3650 case OP_ISBB_IMM: {
3651 s390_basr (code, s390_r13, 0);
3652 s390_j (code, 4);
3653 s390_word (code, ins->inst_imm);
3654 s390_slgf (code, ins->dreg, 0, s390_r13, 4);
3655 }
3656 break;
3657 case OP_ISUB_OVF:
3658 case OP_S390_ISUB_OVF: {
3659 CHECK_SRCDST_NCOM;
3660 s390_sr (code, ins->dreg, src2);
3661 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3662 s390_lgfr (code, ins->dreg, ins->dreg);
3663 }
3664 break;
3665 case OP_ISUB_OVF_UN:
3666 case OP_S390_ISUB_OVF_UN: {
3667 CHECK_SRCDST_NCOM;
3668 s390_slr (code, ins->dreg, src2);
3669 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3670 s390_llgfr(code, ins->dreg, ins->dreg);
3671 }
3672 break;
3673 case OP_LSUB_OVF:
3674 case OP_S390_LSUB_OVF: {
3675 CHECK_SRCDST_NCOM;
3676 s390_sgr (code, ins->dreg, src2);
3677 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3678 }
3679 break;
3680 case OP_LSUB_OVF_UN:
3681 case OP_S390_LSUB_OVF_UN: {
3682 CHECK_SRCDST_NCOM;
3683 s390_slgr (code, ins->dreg, src2);
3684 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3685 }
3686 break;
3687 case OP_IAND: {
3688 CHECK_SRCDST_NCOM_I;
3689 s390_ngr (code, ins->dreg, src2);
3690 }
3691 break;
3692 case OP_IAND_IMM: {
3693 if (ins->dreg != ins->sreg1) {
3694 s390_lgfr (code, ins->dreg, ins->sreg1);
3695 }
3696 if (s390_is_imm16 (ins->inst_imm)) {
3697 s390_lghi (code, s390_r0, ins->inst_imm);
3698 s390_ngr (code, ins->dreg, s390_r0);
3699 } else {
3700 s390_basr (code, s390_r13, 0);
3701 s390_j (code, 6);
3702 s390_llong(code, ins->inst_imm);
3703 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3704 }
3705 }
3706 break;
3707 case OP_IDIV: {
3708 s390_lgfr (code, s390_r0, ins->sreg1);
3709 s390_srda (code, s390_r0, 0, 32);
3710 s390_dr (code, s390_r0, ins->sreg2);
3711 s390_lgfr (code, ins->dreg, s390_r1);
3712 }
3713 break;
3714 case OP_IDIV_UN: {
3715 s390_lgfr (code, s390_r0, ins->sreg1);
3716 s390_srdl (code, s390_r0, 0, 32);
3717 s390_dlr (code, s390_r0, ins->sreg2);
3718 s390_lgfr (code, ins->dreg, s390_r1);
3719 }
3720 break;
3721 case OP_IDIV_IMM: {
3722 if (s390_is_imm16 (ins->inst_imm)) {
3723 s390_lghi (code, s390_r13, ins->inst_imm);
3724 s390_lgfr (code, s390_r0, ins->sreg1);
3725 } else {
3726 s390_basr (code, s390_r13, 0);
3727 s390_j (code, 4);
3728 s390_word (code, ins->inst_imm);
3729 s390_lgfr (code, s390_r0, ins->sreg1);
3730 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3731 }
3732 s390_srda (code, s390_r0, 0, 32);
3733 s390_dr (code, s390_r0, ins->sreg2);
3734 s390_lgfr (code, ins->dreg, s390_r1);
3735 }
3736 break;
3737 case OP_IREM: {
3738 s390_lgfr (code, s390_r0, ins->sreg1);
3739 s390_srda (code, s390_r0, 0, 32);
3740 s390_dr (code, s390_r0, ins->sreg2);
3741 s390_lgfr (code, ins->dreg, s390_r0);
3742 break;
3743 case OP_IREM_UN:
3744 s390_lgfr (code, s390_r0, ins->sreg1);
3745 s390_srdl (code, s390_r0, 0, 32);
3746 s390_dlr (code, s390_r0, ins->sreg2);
3747 s390_lgfr (code, ins->dreg, s390_r0);
3748 }
3749 break;
3750 case OP_IREM_IMM: {
3751 if (s390_is_imm16 (ins->inst_imm)) {
3752 s390_lghi (code, s390_r13, ins->inst_imm);
3753 s390_lgfr (code, s390_r0, ins->sreg1);
3754 } else {
3755 s390_basr (code, s390_r13, 0);
3756 s390_j (code, 4);
3757 s390_word (code, ins->inst_imm);
3758 s390_lgfr (code, s390_r0, ins->sreg1);
3759 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3760 }
3761 s390_srda (code, s390_r0, 0, 32);
3762 s390_dr (code, s390_r0, ins->sreg2);
3763 s390_lgfr (code, ins->dreg, s390_r0);
3764 }
3765 break;
3766 case OP_IOR: {
3767 CHECK_SRCDST_COM_I;
3768 s390_ogr (code, ins->dreg, src2);
3769 }
3770 break;
3771 case OP_IOR_IMM: {
3772 if (ins->dreg != ins->sreg1) {
3773 s390_lgfr (code, ins->dreg, ins->sreg1);
3774 }
3775 if (s390_is_imm16 (ins->inst_imm)) {
3776 s390_lghi (code, s390_r0, ins->inst_imm);
3777 s390_ogr (code, ins->dreg, s390_r0);
3778 } else {
3779 s390_basr (code, s390_r13, 0);
3780 s390_j (code, 6);
3781 s390_llong(code, ins->inst_imm);
3782 s390_og (code, ins->dreg, 0, s390_r13, 4);
3783 }
3784 }
3785 break;
3786 case OP_IXOR: {
3787 CHECK_SRCDST_COM_I;
3788 s390_xgr (code, ins->dreg, src2);
3789 }
3790 break;
3791 case OP_IXOR_IMM: {
3792 if (ins->dreg != ins->sreg1) {
3793 s390_lgfr (code, ins->dreg, ins->sreg1);
3794 }
3795 if (s390_is_imm16 (ins->inst_imm)) {
3796 s390_lghi (code, s390_r0, ins->inst_imm);
3797 s390_xgr (code, ins->dreg, s390_r0);
3798 } else {
3799 s390_basr (code, s390_r13, 0);
3800 s390_j (code, 6);
3801 s390_llong(code, ins->inst_imm);
3802 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3803 }
3804 }
3805 break;
3806 case OP_ISHL: {
3807 CHECK_SRCDST_NCOM;
3808 s390_sll (code, ins->dreg, src2, 0);
3809 }
3810 break;
3811 case OP_ISHL_IMM: {
3812 if (ins->sreg1 != ins->dreg) {
3813 s390_lgfr (code, ins->dreg, ins->sreg1);
3814 }
3815 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3816 }
3817 break;
3818 case OP_ISHR: {
3819 CHECK_SRCDST_NCOM;
3820 s390_sra (code, ins->dreg, src2, 0);
3821 }
3822 break;
3823 case OP_ISHR_IMM: {
3824 if (ins->sreg1 != ins->dreg) {
3825 s390_lgfr (code, ins->dreg, ins->sreg1);
3826 }
3827 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3828 }
3829 break;
3830 case OP_ISHR_UN_IMM: {
3831 if (ins->sreg1 != ins->dreg) {
3832 s390_lgfr (code, ins->dreg, ins->sreg1);
3833 }
3834 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3835 }
3836 break;
3837 case OP_ISHR_UN: {
3838 CHECK_SRCDST_NCOM;
3839 s390_srl (code, ins->dreg, src2, 0);
3840 }
3841 break;
3842 case OP_INOT: {
3843 if (ins->sreg1 != ins->dreg) {
3844 s390_lgfr (code, ins->dreg, ins->sreg1);
3845 }
3846 s390_lghi (code, s390_r0, -1);
3847 s390_xgr (code, ins->dreg, s390_r0);
3848 }
3849 break;
3850 case OP_INEG: {
3851 s390_lcgr (code, ins->dreg, ins->sreg1);
3852 }
3853 break;
3854 case OP_IMUL: {
3855 CHECK_SRCDST_COM_I;
3856 s390_msr (code, ins->dreg, src2);
3857 }
3858 break;
3859 case OP_IMUL_IMM: {
3860 if (ins->dreg != ins->sreg1) {
3861 s390_lgfr (code, ins->dreg, ins->sreg1);
3862 }
3863 if (s390_is_imm16 (ins->inst_imm)) {
3864 s390_lghi (code, s390_r13, ins->inst_imm);
3865 } else {
3866 s390_basr (code, s390_r13, 0);
3867 s390_j (code, 4);
3868 s390_word (code, ins->inst_imm);
3869 s390_lgf (code, s390_r13, 0, s390_r13, 4);
3870 }
3871 s390_msr (code, ins->dreg, s390_r13);
3872 }
3873 break;
3874 case OP_IMUL_OVF: {
3875 short int *o[2];
3876 s390_ltr (code, s390_r1, ins->sreg1);
3877 s390_jz (code, 0); CODEPTR(code, o[0]);
3878 s390_ltr (code, s390_r0, ins->sreg2);
3879 s390_jnz (code, 6);
3880 s390_lhi (code, s390_r1, 0);
3881 s390_j (code, 0); CODEPTR(code, o[1]);
3882 s390_xr (code, s390_r0, s390_r1);
3883 s390_msr (code, s390_r1, ins->sreg2);
3884 s390_xr (code, s390_r0, s390_r1);
3885 s390_srl (code, s390_r0, 0, 31);
3886 s390_ltr (code, s390_r0, s390_r0);
3887 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3888 PTRSLOT (code, o[0]);
3889 PTRSLOT (code, o[1]);
3890 s390_lgfr (code, ins->dreg, s390_r1);
3891 }
3892 break;
3893 case OP_IMUL_OVF_UN: {
3894 s390_lhi (code, s390_r0, 0);
3895 s390_lr (code, s390_r1, ins->sreg1);
3896 s390_mlr (code, s390_r0, ins->sreg2);
3897 s390_ltr (code, s390_r0, s390_r0);
3898 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3899 s390_lgfr (code, ins->dreg, s390_r1);
3900 }
3901 break;
3902 case OP_ICONST:
3903 case OP_I8CONST: {
3904 if (s390_is_imm16(ins->inst_c0)) {
3905 s390_lghi (code, ins->dreg, ins->inst_c0);
3906 } else {
3907 s390_basr (code, s390_r13, 0);
3908 s390_j (code, 6);
3909 s390_llong(code, ins->inst_c0);
3910 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3911 }
3912 }
3913 break;
3914 case OP_AOTCONST: {
3915 s390_basr (code, s390_r13, 0);
3916 s390_j (code, 6);
3917 mono_add_patch_info (cfg, code - cfg->native_code,
3918 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3919 s390_llong(code, 0);
3920 s390_lg (code,ins->dreg, 0, s390_r13, 4);
3921 }
3922 break;
3923 case OP_JUMP_TABLE: {
3924 mono_add_patch_info (cfg, code - cfg->native_code,
3925 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3926 s390_basr (code, s390_r13, 0);
3927 s390_j (code, 6);
3928 s390_llong (code, 0);
3929 s390_lg (code, ins->dreg, 0, s390_r13, 4);
3930 }
3931 break;
3932 case OP_MOVE:
3933 if (ins->dreg != ins->sreg1) {
3934 s390_lgr (code, ins->dreg, ins->sreg1);
3935 }
3936 break;
3937 case OP_LCONV_TO_I:
3938 case OP_LCONV_TO_I8:
3939 case OP_SEXT_I4:
3940 s390_lgfr (code, ins->dreg, ins->sreg1);
3941 break;
3942 case OP_LCONV_TO_I4:
3943 s390_lgfr (code, ins->dreg, ins->sreg1);
3944 break;
3945 case OP_LCONV_TO_U:
3946 case OP_LCONV_TO_U8:
3947 case OP_LCONV_TO_U4:
3948 case OP_ZEXT_I4:
3949 s390_llgfr (code, ins->dreg, ins->sreg1);
3950 break;
3951 case OP_LCONV_TO_OVF_U4:
3952 s390_basr (code, s390_r13, 0);
3953 s390_j (code, 6);
3954 s390_llong(code, 4294967295);
3955 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3956 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3957 s390_ltgr (code, ins->sreg1, ins->sreg1);
3958 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3959 s390_llgfr(code, ins->dreg, ins->sreg1);
3960 break;
3961 case OP_LCONV_TO_OVF_I4_UN:
3962 s390_basr (code, s390_r13, 0);
3963 s390_j (code, 6);
3964 s390_llong(code, 2147483647);
3965 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3966 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, "OverflowException");
3967 s390_ltgr (code, ins->sreg1, ins->sreg1);
3968 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3969 s390_lgfr (code, ins->dreg, ins->sreg1);
3970 break;
3971 case OP_FMOVE:
3972 case OP_FCONV_TO_R4: {
3973 if (ins->dreg != ins->sreg1) {
3974 s390_ldr (code, ins->dreg, ins->sreg1);
3975 }
3976 }
3977 break;
3978 case OP_S390_SETF4RET: {
3979 s390_ledbr (code, ins->dreg, ins->sreg1);
3980 }
3981 break;
3982 case OP_JMP: {
3983 if (cfg->method->save_lmf)
3984 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3985
3986 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3987 code = emit_load_volatile_arguments (code, cfg);
3988 }
3989
3990 code = backUpStackPtr(cfg, code);
3991 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3992 mono_add_patch_info (cfg, code - cfg->native_code,
3993 MONO_PATCH_INFO_METHOD_JUMP,
3994 ins->inst_p0);
3995 s390_jcl (code, S390_CC_UN, 0);
3996 }
3997 break;
3998 case OP_CHECK_THIS: {
3999 /* ensure ins->sreg1 is not NULL */
4000 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
4001 s390_ltgr (code, s390_r0, s390_r0);
4002 }
4003 break;
4004 case OP_ARGLIST: {
4005 int offset = cfg->sig_cookie + cfg->stack_usage;
4006
4007 if (s390_is_imm16 (offset))
4008 s390_lghi (code, s390_r0, offset);
4009 else {
4010 s390_basr (code, s390_r13, 0);
4011 s390_j (code, 6);
4012 s390_llong(code, offset);
4013 s390_lg (code, s390_r0, 0, s390_r13, 0);
4014 }
4015 s390_agr (code, s390_r0, cfg->frame_reg);
4016 s390_stg (code, s390_r0, 0, ins->sreg1, 0);
4017 }
4018 break;
4019 case OP_FCALL: {
4020 s390_basr (code, s390_r13, 0);
4021 s390_j (code, 6);
4022 call = (MonoCallInst*)ins;
4023 if (ins->flags & MONO_INST_HAS_METHOD)
4024 mono_add_patch_info (cfg, code-cfg->native_code,
4025 MONO_PATCH_INFO_METHOD,
4026 call->method);
4027 else
4028 mono_add_patch_info (cfg, code-cfg->native_code,
4029 MONO_PATCH_INFO_ABS,
4030 call->fptr);
4031 s390_llong(code, 0);
4032 s390_lg (code, s390_r14, 0, s390_r13, 4);
4033 s390_basr (code, s390_r14, s390_r14);
4034 if (call->signature->ret->type == MONO_TYPE_R4)
4035 s390_ldebr (code, s390_f0, s390_f0);
4036 }
4037 break;
4038 case OP_LCALL:
4039 case OP_VCALL:
4040 case OP_VCALL2:
4041 case OP_VOIDCALL:
4042 case OP_CALL: {
4043 s390_basr (code, s390_r13, 0);
4044 s390_j (code, 6);
4045 call = (MonoCallInst*)ins;
4046 if (ins->flags & MONO_INST_HAS_METHOD)
4047 mono_add_patch_info (cfg, code-cfg->native_code,
4048 MONO_PATCH_INFO_METHOD,
4049 call->method);
4050 else
4051 mono_add_patch_info (cfg, code-cfg->native_code,
4052 MONO_PATCH_INFO_ABS,
4053 call->fptr);
4054 s390_llong(code, 0);
4055 s390_lg (code, s390_r14, 0, s390_r13, 4);
4056 s390_basr (code, s390_r14, s390_r14);
4057 }
4058 break;
4059 case OP_FCALL_REG: {
4060 call = (MonoCallInst*)ins;
4061 s390_lgr (code, s390_r1, ins->sreg1);
4062 s390_basr (code, s390_r14, s390_r1);
4063 if (call->signature->ret->type == MONO_TYPE_R4)
4064 s390_ldebr (code, s390_f0, s390_f0);
4065 }
4066 break;
4067 case OP_LCALL_REG:
4068 case OP_VCALL_REG:
4069 case OP_VCALL2_REG:
4070 case OP_VOIDCALL_REG:
4071 case OP_CALL_REG: {
4072 s390_lgr (code, s390_r1, ins->sreg1);
4073 s390_basr (code, s390_r14, s390_r1);
4074 }
4075 break;
4076 case OP_FCALL_MEMBASE: {
4077 call = (MonoCallInst*)ins;
4078 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4079 s390_basr (code, s390_r14, s390_r1);
4080 if (call->signature->ret->type == MONO_TYPE_R4)
4081 s390_ldebr (code, s390_f0, s390_f0);
4082 }
4083 break;
4084 case OP_LCALL_MEMBASE:
4085 case OP_VCALL_MEMBASE:
4086 case OP_VCALL2_MEMBASE:
4087 case OP_VOIDCALL_MEMBASE:
4088 case OP_CALL_MEMBASE: {
4089 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4090 s390_basr (code, s390_r14, s390_r1);
4091 }
4092 break;
4093 case OP_OUTARG:
4094 g_assert_not_reached ();
4095 break;
4096 case OP_LOCALLOC: {
4097 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
4098 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
4099 s390_lgr (code, s390_r1, ins->sreg1);
4100 if (ins->flags & MONO_INST_INIT)
4101 s390_lgr (code, s390_r0, ins->sreg1);
4102 s390_aghi (code, s390_r1, 14);
4103 s390_srlg (code, s390_r1, s390_r1, 0, 3);
4104 s390_sllg (code, s390_r1, s390_r1, 0, 3);
4105 if (cfg->method->save_lmf) {
4106 /*----------------------------------*/
4107 /* we have to adjust lmf ebp value */
4108 /*----------------------------------*/
4109 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
4110
4111 s390_lgr (code, s390_r13, cfg->frame_reg);
4112 if (s390_is_imm16(lmfOffset))
4113 s390_aghi (code, s390_r13, lmfOffset);
4114 else {
4115 s390_basr (code, s390_r14, 0);
4116 s390_j (code, 4);
4117 s390_word (code, lmfOffset);
4118 s390_agf (code, s390_r13, 0, s390_r14, 4);
4119 }
4120 s390_lgr (code, s390_r14, STK_BASE);
4121 s390_sgr (code, s390_r14, s390_r1);
4122 s390_stg (code, s390_r14, 0, s390_r13,
4123 G_STRUCT_OFFSET(MonoLMF, ebp));
4124 }
4125 s390_lg (code, s390_r13, 0, STK_BASE, 0);
4126 s390_sgr (code, STK_BASE, s390_r1);
4127 s390_stg (code, s390_r13, 0, STK_BASE, 0);
4128 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
4129 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
4130 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
4131 if (ins->flags & MONO_INST_INIT) {
4132 s390_lgr (code, s390_r1, s390_r0);
4133 s390_lgr (code, s390_r0, ins->dreg);
4134 s390_lgr (code, s390_r14, s390_r12);
4135 s390_lghi (code, s390_r13, 0);
4136 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4137 s390_jo (code, -2);
4138 s390_lgr (code, s390_r12, s390_r14);
4139 }
4140 }
4141 break;
4142 case OP_THROW: {
4143 s390_lgr (code, s390_r2, ins->sreg1);
4144 s390_basr (code, s390_r13, 0);
4145 s390_j (code, 6);
4146 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4147 (gpointer) "mono_arch_throw_exception");
4148 s390_llong(code, 0);
4149 s390_lg (code, s390_r14, 0, s390_r13, 4);
4150 s390_basr (code, s390_r14, s390_r14);
4151 }
4152 break;
4153 case OP_RETHROW: {
4154 s390_lgr (code, s390_r2, ins->sreg1);
4155 s390_basr (code, s390_r13, 0);
4156 s390_j (code, 6);
4157 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4158 (gpointer) "mono_arch_rethrow_exception");
4159 s390_llong(code, 0);
4160 s390_lg (code, s390_r14, 0, s390_r13, 4);
4161 s390_basr (code, s390_r14, s390_r14);
4162 }
4163 break;
4164 case OP_START_HANDLER: {
4165 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4166
4167 S390_LONG (code, stg, stg, s390_r14, 0,
4168 spvar->inst_basereg,
4169 spvar->inst_offset);
4170 }
4171 break;
4172 case OP_ENDFILTER: {
4173 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4174
4175 if (ins->sreg1 != s390_r2)
4176 s390_lgr(code, s390_r2, ins->sreg1);
4177 S390_LONG (code, lg, lg, s390_r14, 0,
4178 spvar->inst_basereg,
4179 spvar->inst_offset);
4180 s390_br (code, s390_r14);
4181 }
4182 break;
4183 case OP_ENDFINALLY: {
4184 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4185
4186 S390_LONG (code, lg, lg, s390_r14, 0,
4187 spvar->inst_basereg,
4188 spvar->inst_offset);
4189 s390_br (code, s390_r14);
4190 }
4191 break;
4192 case OP_CALL_HANDLER: {
4193 mono_add_patch_info (cfg, code-cfg->native_code,
4194 MONO_PATCH_INFO_BB, ins->inst_target_bb);
4195 s390_brasl (code, s390_r14, 0);
4196 }
4197 break;
4198 case OP_LABEL: {
4199 ins->inst_c0 = code - cfg->native_code;
4200 }
4201 break;
4202 case OP_RELAXED_NOP:
4203 case OP_NOP:
4204 case OP_DUMMY_USE:
4205 case OP_DUMMY_STORE:
4206 case OP_NOT_REACHED:
4207 case OP_NOT_NULL: {
4208 }
4209 break;
4210 case OP_BR:
4211 EMIT_UNCOND_BRANCH(ins);
4212 break;
4213 case OP_BR_REG: {
4214 s390_br (code, ins->sreg1);
4215 }
4216 break;
4217 case OP_CEQ:
4218 case OP_ICEQ:
4219 case OP_LCEQ: {
4220 s390_lghi(code, ins->dreg, 1);
4221 s390_jz (code, 4);
4222 s390_lghi(code, ins->dreg, 0);
4223 }
4224 break;
4225 case OP_CLT:
4226 case OP_ICLT:
4227 case OP_LCLT: {
4228 s390_lghi(code, ins->dreg, 1);
4229 s390_jl (code, 4);
4230 s390_lghi(code, ins->dreg, 0);
4231 }
4232 break;
4233 case OP_CLT_UN:
4234 case OP_ICLT_UN:
4235 case OP_LCLT_UN: {
4236 s390_lghi(code, ins->dreg, 1);
4237 s390_jlo (code, 4);
4238 s390_lghi(code, ins->dreg, 0);
4239 }
4240 break;
4241 case OP_CGT:
4242 case OP_ICGT:
4243 case OP_LCGT: {
4244 s390_lghi(code, ins->dreg, 1);
4245 s390_jh (code, 4);
4246 s390_lghi(code, ins->dreg, 0);
4247 }
4248 break;
4249 case OP_CGT_UN:
4250 case OP_ICGT_UN:
4251 case OP_LCGT_UN: {
4252 s390_lghi(code, ins->dreg, 1);
4253 s390_jho (code, 4);
4254 s390_lghi(code, ins->dreg, 0);
4255 }
4256 break;
4257 case OP_COND_EXC_EQ:
4258 case OP_COND_EXC_IEQ:
4259 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4260 break;
4261 case OP_COND_EXC_NE_UN:
4262 case OP_COND_EXC_INE_UN:
4263 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4264 break;
4265 case OP_COND_EXC_LT:
4266 case OP_COND_EXC_ILT:
4267 case OP_COND_EXC_LT_UN:
4268 case OP_COND_EXC_ILT_UN:
4269 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4270 break;
4271 case OP_COND_EXC_GT:
4272 case OP_COND_EXC_IGT:
4273 case OP_COND_EXC_GT_UN:
4274 case OP_COND_EXC_IGT_UN:
4275 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4276 break;
4277 case OP_COND_EXC_GE:
4278 case OP_COND_EXC_IGE:
4279 case OP_COND_EXC_GE_UN:
4280 case OP_COND_EXC_IGE_UN:
4281 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4282 break;
4283 case OP_COND_EXC_LE:
4284 case OP_COND_EXC_ILE:
4285 case OP_COND_EXC_LE_UN:
4286 case OP_COND_EXC_ILE_UN:
4287 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4288 break;
4289 case OP_COND_EXC_OV:
4290 case OP_COND_EXC_IOV:
4291 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4292 break;
4293 case OP_COND_EXC_NO:
4294 case OP_COND_EXC_INO:
4295 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4296 break;
4297 case OP_COND_EXC_C:
4298 case OP_COND_EXC_IC:
4299 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4300 break;
4301 case OP_COND_EXC_NC:
4302 case OP_COND_EXC_INC:
4303 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4304 break;
4305 case OP_LBEQ:
4306 case OP_IBEQ:
4307 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4308 break;
4309 case OP_LBNE_UN:
4310 case OP_IBNE_UN:
4311 EMIT_COND_BRANCH (ins, S390_CC_NE);
4312 break;
4313 case OP_LBLT:
4314 case OP_LBLT_UN:
4315 case OP_IBLT:
4316 case OP_IBLT_UN:
4317 EMIT_COND_BRANCH (ins, S390_CC_LT);
4318 break;
4319 case OP_LBGT:
4320 case OP_LBGT_UN:
4321 case OP_IBGT:
4322 case OP_IBGT_UN:
4323 EMIT_COND_BRANCH (ins, S390_CC_GT);
4324 break;
4325 case OP_LBGE:
4326 case OP_LBGE_UN:
4327 case OP_IBGE:
4328 case OP_IBGE_UN:
4329 EMIT_COND_BRANCH (ins, S390_CC_GE);
4330 break;
4331 case OP_LBLE:
4332 case OP_LBLE_UN:
4333 case OP_IBLE:
4334 case OP_IBLE_UN:
4335 EMIT_COND_BRANCH (ins, S390_CC_LE);
4336 break;
4337
4338 /* floating point opcodes */
4339 case OP_R8CONST: {
4340 if (*((float *) ins->inst_p0) == 0) {
4341 s390_lzdr (code, ins->dreg);
4342 } else {
4343 s390_basr (code, s390_r13, 0);
4344 s390_j (code, 6);
4345 s390_llong (code, ins->inst_p0);
4346 s390_lg (code, s390_r13, 0, s390_r13, 4);
4347 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4348 }
4349 }
4350 break;
4351 case OP_R4CONST: {
4352 if (*((float *) ins->inst_p0) == 0) {
4353 s390_lzdr (code, ins->dreg);
4354 } else {
4355 s390_basr (code, s390_r13, 0);
4356 s390_j (code, 6);
4357 s390_llong(code, ins->inst_p0);
4358 s390_lg (code, s390_r13, 0, s390_r13, 4);
4359 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4360 }
4361 }
4362 break;
4363 case OP_STORER8_MEMBASE_REG: {
4364 S390_LONG (code, stdy, std, ins->sreg1, 0,
4365 ins->inst_destbasereg, ins->inst_offset);
4366 }
4367 break;
4368 case OP_LOADR8_MEMBASE: {
4369 S390_LONG (code, ldy, ld, ins->dreg, 0,
4370 ins->inst_basereg, ins->inst_offset);
4371 }
4372 break;
4373 case OP_STORER4_MEMBASE_REG: {
4374 s390_ledbr (code, s390_f15, ins->sreg1);
4375 S390_LONG (code, stey, ste, s390_f15, 0,
4376 ins->inst_destbasereg, ins->inst_offset);
4377 }
4378 break;
4379 case OP_LOADR4_MEMBASE: {
4380 S390_LONG (code, ldy, ld, s390_f15, 0,
4381 ins->inst_basereg, ins->inst_offset);
4382 s390_ldebr (code, ins->dreg, s390_f15);
4383 }
4384 break;
4385 case OP_ICONV_TO_R_UN: {
4386 s390_cdfbr (code, ins->dreg, ins->sreg1);
4387 s390_ltr (code, ins->sreg1, ins->sreg1);
4388 s390_jnl (code, 12);
4389 s390_basr (code, s390_r13, 0);
4390 s390_j (code, 6);
4391 s390_word (code, 0x41f00000);
4392 s390_word (code, 0);
4393 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4394 }
4395 break;
4396 case OP_LCONV_TO_R_UN: {
4397 s390_cdgbr (code, ins->dreg, ins->sreg1);
4398 s390_ltgr (code, ins->sreg1, ins->sreg1);
4399 s390_jnl (code, 12);
4400 s390_basr (code, s390_r13, 0);
4401 s390_j (code, 6);
4402 s390_word (code, 0x41f00000);
4403 s390_word (code, 0);
4404 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4405 }
4406 break;
4407 case OP_LCONV_TO_R4:
4408 case OP_ICONV_TO_R4: {
4409 s390_cdgbr (code, ins->dreg, ins->sreg1);
4410 }
4411 break;
4412 case OP_LCONV_TO_R8:
4413 case OP_ICONV_TO_R8: {
4414 s390_cdgbr (code, ins->dreg, ins->sreg1);
4415 }
4416 break;
4417 case OP_FCONV_TO_I1:
4418 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4419 break;
4420 case OP_FCONV_TO_U1:
4421 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4422 break;
4423 case OP_FCONV_TO_I2:
4424 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4425 break;
4426 case OP_FCONV_TO_U2:
4427 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4428 break;
4429 case OP_FCONV_TO_I4:
4430 case OP_FCONV_TO_I:
4431 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4432 break;
4433 case OP_FCONV_TO_U4:
4434 case OP_FCONV_TO_U:
4435 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4436 break;
4437 case OP_FCONV_TO_I8:
4438 s390_cgdbr (code, ins->dreg, 5, ins->sreg1);
4439 break;
4440 case OP_LCONV_TO_OVF_I: {
4441 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4442 short int *o[5];
4443 s390_ltgr (code, ins->sreg2, ins->sreg2);
4444 s390_jnl (code, 0); CODEPTR(code, o[0]);
4445 s390_ltgr (code, ins->sreg1, ins->sreg1);
4446 s390_jnl (code, 0); CODEPTR(code, o[1]);
4447 s390_lhi (code, s390_r13, -1);
4448 s390_cgr (code, ins->sreg1, s390_r13);
4449 s390_jnz (code, 0); CODEPTR(code, o[2]);
4450 if (ins->dreg != ins->sreg2)
4451 s390_lgr (code, ins->dreg, ins->sreg2);
4452 s390_j (code, 0); CODEPTR(code, o[3]);
4453 PTRSLOT(code, o[0]);
4454 s390_jz (code, 0); CODEPTR(code, o[4]);
4455 PTRSLOT(code, o[1]);
4456 PTRSLOT(code, o[2]);
4457 mono_add_patch_info (cfg, code - cfg->native_code,
4458 MONO_PATCH_INFO_EXC, "OverflowException");
4459 s390_brasl (code, s390_r14, 0);
4460 PTRSLOT(code, o[3]);
4461 PTRSLOT(code, o[4]);
4462 }
4463 break;
4464 case OP_ABS: {
4465 s390_lpdbr (code, ins->dreg, ins->sreg1);
4466 }
4467 break;
4468 case OP_SQRT: {
4469 s390_sqdbr (code, ins->dreg, ins->sreg1);
4470 }
4471 break;
4472 case OP_FADD: {
4473 CHECK_SRCDST_COM_F;
4474 s390_adbr (code, ins->dreg, src2);
4475 }
4476 break;
4477 case OP_FSUB: {
4478 CHECK_SRCDST_NCOM_F;
4479 s390_sdbr (code, ins->dreg, src2);
4480 }
4481 break;
4482 case OP_FMUL: {
4483 CHECK_SRCDST_COM_F;
4484 s390_mdbr (code, ins->dreg, src2);
4485 }
4486 break;
4487 case OP_FDIV: {
4488 CHECK_SRCDST_NCOM_F;
4489 s390_ddbr (code, ins->dreg, src2);
4490 }
4491 break;
4492 case OP_FNEG: {
4493 s390_lcdbr (code, ins->dreg, ins->sreg1);
4494 }
4495 break;
4496 case OP_FREM: {
4497 CHECK_SRCDST_NCOM_F;
4498 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4499 }
4500 break;
4501 case OP_FCOMPARE: {
4502 s390_cdbr (code, ins->sreg1, ins->sreg2);
4503 }
4504 break;
4505 case OP_FCEQ: {
4506 s390_cdbr (code, ins->sreg1, ins->sreg2);
4507 s390_lghi (code, ins->dreg, 1);
4508 s390_je (code, 4);
4509 s390_lghi (code, ins->dreg, 0);
4510 }
4511 break;
4512 case OP_FCLT: {
4513 s390_cdbr (code, ins->sreg1, ins->sreg2);
4514 s390_lghi (code, ins->dreg, 1);
4515 s390_jl (code, 4);
4516 s390_lghi (code, ins->dreg, 0);
4517 }
4518 break;
4519 case OP_FCLT_UN: {
4520 s390_cdbr (code, ins->sreg1, ins->sreg2);
4521 s390_lghi (code, ins->dreg, 1);
4522 s390_jlo (code, 4);
4523 s390_lghi (code, ins->dreg, 0);
4524 }
4525 break;
4526 case OP_FCGT: {
4527 s390_cdbr (code, ins->sreg1, ins->sreg2);
4528 s390_lghi (code, ins->dreg, 1);
4529 s390_jh (code, 4);
4530 s390_lghi (code, ins->dreg, 0);
4531 }
4532 break;
4533 case OP_FCGT_UN: {
4534 s390_cdbr (code, ins->sreg1, ins->sreg2);
4535 s390_lghi (code, ins->dreg, 1);
4536 s390_jho (code, 4);
4537 s390_lghi (code, ins->dreg, 0);
4538 }
4539 break;
4540 case OP_FBEQ: {
4541 short *o;
4542 s390_jo (code, 0); CODEPTR(code, o);
4543 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4544 PTRSLOT (code, o);
4545 }
4546 break;
4547 case OP_FBNE_UN:
4548 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4549 break;
4550 case OP_FBLT: {
4551 short *o;
4552 s390_jo (code, 0); CODEPTR(code, o);
4553 EMIT_COND_BRANCH (ins, S390_CC_LT);
4554 PTRSLOT (code, o);
4555 }
4556 break;
4557 case OP_FBLT_UN:
4558 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4559 break;
4560 case OP_FBGT: {
4561 short *o;
4562 s390_jo (code, 0); CODEPTR(code, o);
4563 EMIT_COND_BRANCH (ins, S390_CC_GT);
4564 PTRSLOT (code, o);
4565 }
4566 break;
4567 case OP_FBGT_UN:
4568 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4569 break;
4570 case OP_FBGE: {
4571 short *o;
4572 s390_jo (code, 0); CODEPTR(code, o);
4573 EMIT_COND_BRANCH (ins, S390_CC_GE);
4574 PTRSLOT (code, o);
4575 }
4576 break;
4577 case OP_FBGE_UN:
4578 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4579 break;
4580 case OP_FBLE: {
4581 short *o;
4582 s390_jo (code, 0); CODEPTR(code, o);
4583 EMIT_COND_BRANCH (ins, S390_CC_LE);
4584 PTRSLOT (code, o);
4585 }
4586 break;
4587 case OP_FBLE_UN:
4588 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4589 break;
4590 case OP_CKFINITE: {
4591 short *o;
4592 s390_lhi (code, s390_r13, 0x7f);
4593 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4594 s390_jz (code, 0); CODEPTR(code, o);
4595 mono_add_patch_info (cfg, code - cfg->native_code,
4596 MONO_PATCH_INFO_EXC, "ArithmeticException");
4597 s390_brasl (code, s390_r14,0);
4598 PTRSLOT(code, o);
4599 }
4600 break;
4601 case OP_S390_MOVE: {
4602 if (ins->backend.size > 0) {
4603 if (ins->backend.size <= 256) {
4604 s390_mvc (code, ins->backend.size, ins->dreg,
4605 ins->inst_offset, ins->sreg1, ins->inst_imm);
4606 } else {
4607 s390_lgr (code, s390_r0, ins->dreg);
4608 if (s390_is_imm16 (ins->inst_offset)) {
4609 s390_aghi (code, s390_r0, ins->inst_offset);
4610 } else {
4611 s390_basr (code, s390_r13, 0);
4612 s390_j (code, 6);
4613 s390_llong(code, ins->inst_offset);
4614 s390_a (code, s390_r0, 0, s390_r13, 4);
4615 }
4616 s390_lgr (code, s390_r12, ins->sreg1);
4617 if (s390_is_imm16 (ins->inst_imm)) {
4618 s390_aghi (code, s390_r12, ins->inst_imm);
4619 } else {
4620 s390_basr (code, s390_r13, 0);
4621 s390_j (code, 6);
4622 s390_llong(code, ins->inst_imm);
4623 s390_ag (code, s390_r12, 0, s390_r13, 4);
4624 }
4625 s390_lgr (code, s390_r1, ins->sreg1);
4626 s390_lgr (code, s390_r13, s390_r1);
4627 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4628 s390_jo (code, -2);
4629 }
4630 }
4631 }
4632 break;
4633 case OP_ATOMIC_ADD_I8: {
4634 s390_lgr (code, s390_r1, ins->sreg2);
4635 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4636 s390_agr (code, s390_r1, s390_r0);
4637 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4638 s390_jnz (code, -10);
4639 s390_lgr (code, ins->dreg, s390_r1);
4640 }
4641 break;
4642 case OP_ATOMIC_ADD_NEW_I8: {
4643 s390_lgr (code, s390_r1, ins->sreg2);
4644 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4645 s390_agr (code, s390_r1, s390_r0);
4646 s390_csg (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4647 s390_jnz (code, -10);
4648 s390_lgr (code, ins->dreg, s390_r1);
4649 }
4650 break;
4651 case OP_ATOMIC_EXCHANGE_I8: {
4652 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4653 s390_csg (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4654 s390_jnz (code, -6);
4655 s390_lgr (code, ins->dreg, s390_r0);
4656 }
4657 break;
4658 case OP_ATOMIC_ADD_I4: {
4659 s390_lgfr(code, s390_r1, ins->sreg2);
4660 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4661 s390_agr (code, s390_r1, s390_r0);
4662 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4663 s390_jnz (code, -9);
4664 s390_lgfr(code, ins->dreg, s390_r1);
4665 }
4666 break;
4667 case OP_ATOMIC_ADD_NEW_I4: {
4668 s390_lgfr(code, s390_r1, ins->sreg2);
4669 s390_lgf (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4670 s390_agr (code, s390_r1, s390_r0);
4671 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4672 s390_jnz (code, -9);
4673 s390_lgfr(code, ins->dreg, s390_r1);
4674 }
4675 break;
4676 case OP_ATOMIC_EXCHANGE_I4: {
4677 s390_lg (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4678 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4679 s390_jnz (code, -4);
4680 s390_lgfr(code, ins->dreg, s390_r0);
4681 }
4682 break;
4683 case OP_S390_BKCHAIN: {
4684 s390_lgr (code, ins->dreg, ins->sreg1);
4685 if (s390_is_imm16 (cfg->stack_offset)) {
4686 s390_aghi (code, ins->dreg, cfg->stack_offset);
4687 } else {
4688 s390_basr (code, s390_r13, 0);
4689 s390_j (code, 6);
4690 s390_llong(code, cfg->stack_offset);
4691 s390_ag (code, ins->dreg, 0, s390_r13, 4);
4692 }
4693 }
4694 break;
4695 case OP_MEMORY_BARRIER: {
4696 }
4697 break;
4698 default:
4699 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4700 g_assert_not_reached ();
4701 }
4702
4703 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4704 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %ld)",
4705 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4706 g_assert_not_reached ();
4707 }
4708
4709 cpos += max_len;
4710
4711 last_offset = offset;
4712 }
4713
4714 cfg->code_len = code - cfg->native_code;
4715 }
4716
4717 /*========================= End of Function ========================*/
4718
4719 /*------------------------------------------------------------------*/
4720 /* */
4721 /* Name - mono_arch_register_lowlevel_calls */
4722 /* */
4723 /* Function - Register routines to help with --trace operation. */
4724 /* */
4725 /*------------------------------------------------------------------*/
4726
4727 void
4728 mono_arch_register_lowlevel_calls (void)
4729 {
4730 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4731 }
4732
4733 /*========================= End of Function ========================*/
4734
4735 /*------------------------------------------------------------------*/
4736 /* */
4737 /* Name - mono_arch_patch_code */
4738 /* */
4739 /* Function - Process the patch data created during the */
4740 /* instruction build process. This resolves jumps, */
4741 /* calls, variables etc. */
4742 /* */
4743 /*------------------------------------------------------------------*/
4744
4745 void
4746 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4747 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4748 {
4749 MonoJumpInfo *patch_info;
4750
4751 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4752 unsigned char *ip = patch_info->ip.i + code;
4753 gconstpointer target = NULL;
4754
4755 target = mono_resolve_patch_target (method, domain, code,
4756 patch_info, run_cctors);
4757
4758 switch (patch_info->type) {
4759 case MONO_PATCH_INFO_IP:
4760 case MONO_PATCH_INFO_EXC_NAME:
4761 case MONO_PATCH_INFO_LDSTR:
4762 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4763 case MONO_PATCH_INFO_LDTOKEN:
4764 case MONO_PATCH_INFO_EXC:
4765 case MONO_PATCH_INFO_ABS:
4766 case MONO_PATCH_INFO_METHOD:
4767 case MONO_PATCH_INFO_INTERNAL_METHOD:
4768 case MONO_PATCH_INFO_CLASS_INIT:
4769 s390_patch_addr (ip, (guint64) target);
4770 continue;
4771 case MONO_PATCH_INFO_SWITCH:
4772 /*----------------------------------*/
4773 /* ip points at the basr r13,0/j +4 */
4774 /* instruction the vtable value */
4775 /* follows this (i.e. ip+6) */
4776 /*----------------------------------*/
4777 *((gconstpointer *)(ip+6)) = target;
4778 continue;
4779 case MONO_PATCH_INFO_METHODCONST:
4780 case MONO_PATCH_INFO_CLASS:
4781 case MONO_PATCH_INFO_IMAGE:
4782 case MONO_PATCH_INFO_FIELD:
4783 case MONO_PATCH_INFO_IID:
4784 target = S390_RELATIVE(target, ip);
4785 s390_patch_rel (ip, (guint64) target);
4786 continue;
4787 case MONO_PATCH_INFO_R4:
4788 case MONO_PATCH_INFO_R8:
4789 case MONO_PATCH_INFO_METHOD_REL:
4790 g_assert_not_reached ();
4791 continue;
4792 default:
4793 target = S390_RELATIVE(target, ip);
4794 ip += 2;
4795 s390_patch_rel (ip, (guint64) target);
4796 }
4797 }
4798 }
4799
4800 /*========================= End of Function ========================*/
4801
4802 /*------------------------------------------------------------------*/
4803 /* */
4804 /* Name - emit_load_volatile_arguments */
4805 /* */
4806 /* Function - Emit the instructions to reload parameter regist- */
4807 /* registers for use with "tail" operations. */
4808 /* */
4809 /* The register loading operations performed here */
4810 /* are the mirror of the store operations performed */
4811 /* in mono_arch_emit_prolog and need to be kept in */
4812 /* synchronization with it. */
4813 /* */
4814 /*------------------------------------------------------------------*/
4815
4816 guint8 *
4817 emit_load_volatile_arguments (guint8 *code, MonoCompile *cfg)
4818 {
4819 MonoInst *inst;
4820 MonoMethod *method = cfg->method;
4821 MonoMethodSignature *sig = mono_method_signature(method);
4822 int pos = 0, i;
4823 CallInfo *cinfo;
4824
4825 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
4826
4827 if (cinfo->struct_ret) {
4828 ArgInfo *ainfo = &cinfo->ret;
4829 inst = cfg->vret_addr;
4830 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4831 }
4832
4833 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4834 ArgInfo *ainfo = cinfo->args + i;
4835 inst = cfg->args [pos];
4836
4837 if (inst->opcode == OP_REGVAR) {
4838 if (ainfo->regtype == RegTypeGeneral)
4839 s390_lgr (code, ainfo->reg, inst->dreg);
4840 else if (ainfo->regtype == RegTypeFP) {
4841 if (inst->dreg != ainfo->reg) {
4842 if (ainfo->size == 4) {
4843 s390_ldebr (code, ainfo->reg, inst->dreg);
4844 } else {
4845 s390_ldr (code, ainfo->reg, inst->dreg);
4846 }
4847 }
4848 }
4849 else if (ainfo->regtype == RegTypeBase) {
4850 } else
4851 g_assert_not_reached ();
4852 } else {
4853 if (ainfo->regtype == RegTypeGeneral) {
4854 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4855 g_assert_not_reached();
4856 switch (ainfo->size) {
4857 case 1:
4858 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4859 break;
4860 case 2:
4861 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4862 break;
4863 case 4:
4864 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4865 break;
4866 case 8:
4867 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4868 break;
4869 }
4870 } else if (ainfo->regtype == RegTypeBase) {
4871 } else if (ainfo->regtype == RegTypeFP) {
4872 if (ainfo->size == 8)
4873 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4874 else if (ainfo->size == 4)
4875 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4876 else
4877 g_assert_not_reached ();
4878 } else if (ainfo->regtype == RegTypeStructByVal) {
4879 if (ainfo->reg != STK_BASE) {
4880 switch (ainfo->size) {
4881 case 1:
4882 s390_llgc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4883 break;
4884 case 2:
4885 s390_lgh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4886 break;
4887 case 4:
4888 s390_lgf (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4889 break;
4890 case 8:
4891 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4892 break;
4893 }
4894 }
4895 } else if (ainfo->regtype == RegTypeStructByAddr) {
4896 if (ainfo->reg != STK_BASE) {
4897 s390_lg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4898 }
4899 } else
4900 g_assert_not_reached ();
4901 }
4902 pos++;
4903 }
4904
4905 return code;
4906 }
4907
4908 /*========================= End of Function ========================*/
4909
4910 /*------------------------------------------------------------------*/
4911 /* */
4912 /* Name - mono_arch_emit_prolog */
4913 /* */
4914 /* Function - Create the instruction sequence for a function */
4915 /* prolog. */
4916 /* */
4917 /*------------------------------------------------------------------*/
4918
4919 guint8 *
4920 mono_arch_emit_prolog (MonoCompile *cfg)
4921 {
4922 MonoMethod *method = cfg->method;
4923 MonoBasicBlock *bb;
4924 MonoMethodSignature *sig;
4925 MonoInst *inst;
4926 int alloc_size, pos, max_offset, i;
4927 guint8 *code;
4928 CallInfo *cinfo;
4929 int tracing = 0;
4930 int lmfOffset;
4931
4932 cfg->code_size = 512;
4933
4934 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4935 tracing = 1;
4936 cfg->code_size += 256;
4937 }
4938
4939 if (method->save_lmf)
4940 cfg->code_size += 200;
4941
4942 cfg->native_code = code = g_malloc (cfg->code_size);
4943
4944 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4945
4946 if (cfg->arch.bkchain_reg != -1)
4947 s390_lgr (code, cfg->arch.bkchain_reg, STK_BASE);
4948
4949 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4950 cfg->used_int_regs |= 1 << 11;
4951 }
4952
4953 alloc_size = cfg->stack_offset;
4954
4955 cfg->stack_usage = alloc_size;
4956 s390_lgr (code, s390_r11, STK_BASE);
4957 if (s390_is_imm16 (alloc_size)) {
4958 s390_aghi (code, STK_BASE, -alloc_size);
4959 } else {
4960 int stackSize = alloc_size;
4961 while (stackSize > 32767) {
4962 s390_aghi (code, STK_BASE, -32767);
4963 stackSize -= 32767;
4964 }
4965 s390_aghi (code, STK_BASE, -stackSize);
4966 }
4967 s390_stg (code, s390_r11, 0, STK_BASE, 0);
4968
4969 if (cfg->frame_reg != STK_BASE)
4970 s390_lgr (code, s390_r11, STK_BASE);
4971
4972 /* compute max_offset in order to use short forward jumps
4973 * we always do it on s390 because the immediate displacement
4974 * for jumps is too small
4975 */
4976 max_offset = 0;
4977 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4978 MonoInst *ins;
4979 bb->max_offset = max_offset;
4980
4981 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4982 max_offset += 6;
4983
4984 MONO_BB_FOR_EACH_INS (bb, ins)
4985 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4986 }
4987
4988 /* load arguments allocated to register from the stack */
4989 sig = mono_method_signature (method);
4990 pos = 0;
4991
4992 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4993
4994 if (cinfo->struct_ret) {
4995 ArgInfo *ainfo = &cinfo->ret;
4996 inst = cfg->vret_addr;
4997 inst->backend.size = ainfo->vtsize;
4998 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4999 }
5000
5001 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
5002 ArgInfo *ainfo = cinfo->args + i;
5003 inst = cfg->args [pos];
5004
5005 if (inst->opcode == OP_VTARG_ADDR)
5006 inst = inst->inst_left;
5007
5008 if (inst->opcode == OP_REGVAR) {
5009 if (ainfo->regtype == RegTypeGeneral)
5010 s390_lgr (code, inst->dreg, ainfo->reg);
5011 else if (ainfo->regtype == RegTypeFP) {
5012 if (inst->dreg != ainfo->reg) {
5013 if (ainfo->size == 4) {
5014 s390_ledbr (code, inst->dreg, ainfo->reg);
5015 } else {
5016 s390_ldr (code, inst->dreg, ainfo->reg);
5017 }
5018 }
5019 }
5020 else if (ainfo->regtype == RegTypeBase) {
5021 s390_lgr (code, s390_r13, STK_BASE);
5022 s390_aghi (code, s390_r13, alloc_size);
5023 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
5024 } else
5025 g_assert_not_reached ();
5026
5027 if (cfg->verbose_level > 2)
5028 g_print ("Argument %d assigned to register %s\n",
5029 pos, mono_arch_regname (inst->dreg));
5030 } else {
5031 if (ainfo->regtype == RegTypeGeneral) {
5032 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
5033 g_assert_not_reached();
5034 switch (ainfo->size) {
5035 case 1:
5036 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5037 break;
5038 case 2:
5039 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5040 break;
5041 case 4:
5042 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5043 break;
5044 case 8:
5045 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5046 break;
5047 }
5048 } else if (ainfo->regtype == RegTypeBase) {
5049 } else if (ainfo->regtype == RegTypeFP) {
5050 if (ainfo->size == 8)
5051 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5052 else if (ainfo->size == 4)
5053 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5054 else
5055 g_assert_not_reached ();
5056 } else if (ainfo->regtype == RegTypeStructByVal) {
5057 int doffset = inst->inst_offset;
5058 int reg;
5059 if (ainfo->reg != STK_BASE)
5060 reg = ainfo->reg;
5061 else {
5062 reg = s390_r0;
5063 s390_lgr (code, s390_r13, STK_BASE);
5064 s390_aghi (code, s390_r13, alloc_size);
5065 }
5066 switch (ainfo->size) {
5067 case 1:
5068 if (ainfo->reg == STK_BASE)
5069 s390_ic (code, reg, 0, s390_r13, ainfo->offset+7);
5070 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
5071 break;
5072 case 2:
5073 if (ainfo->reg == STK_BASE)
5074 s390_lh (code, reg, 0, s390_r13, ainfo->offset+6);
5075 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
5076 break;
5077 case 4:
5078 if (ainfo->reg == STK_BASE)
5079 s390_l (code, reg, 0, s390_r13, ainfo->offset+4);
5080 s390_st (code, reg, 0, inst->inst_basereg, doffset);
5081 break;
5082 case 8:
5083 if (ainfo->reg == STK_BASE)
5084 s390_lg (code, reg, 0, s390_r13, ainfo->offset);
5085 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
5086 break;
5087 }
5088 } else if (ainfo->regtype == RegTypeStructByAddr) {
5089 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5090 } else
5091 g_assert_not_reached ();
5092 }
5093 pos++;
5094 }
5095
5096 if (method->save_lmf) {
5097 /*---------------------------------------------------------------*/
5098 /* we build the MonoLMF structure on the stack - see mini-s390.h */
5099 /*---------------------------------------------------------------*/
5100 lmfOffset = alloc_size - sizeof(MonoLMF);
5101
5102 s390_lgr (code, s390_r13, cfg->frame_reg);
5103 s390_aghi (code, s390_r13, lmfOffset);
5104
5105 /*---------------------------------------------------------------*/
5106 /* Preserve the parameter registers while we fix up the lmf */
5107 /*---------------------------------------------------------------*/
5108 s390_stmg (code, s390_r2, s390_r6, s390_r13,
5109 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
5110
5111 /*---------------------------------------------------------------*/
5112 /* On return from this call r2 have the address of the &lmf */
5113 /*---------------------------------------------------------------*/
5114 s390_basr(code, s390_r10, 0);
5115 s390_j (code, 6);
5116 mono_add_patch_info (cfg, code - cfg->native_code,
5117 MONO_PATCH_INFO_INTERNAL_METHOD,
5118 (gpointer)"mono_get_lmf_addr");
5119 s390_llong(code, 0);
5120 s390_lg (code, s390_r1, 0, s390_r10, 4);
5121 s390_basr (code, s390_r14, s390_r1);
5122
5123 /*---------------------------------------------------------------*/
5124 /* Set lmf.lmf_addr = jit_tls->lmf */
5125 /*---------------------------------------------------------------*/
5126 s390_stg (code, s390_r2, 0, s390_r13,
5127 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
5128
5129 /*---------------------------------------------------------------*/
5130 /* Get current lmf */
5131 /*---------------------------------------------------------------*/
5132 s390_lg (code, s390_r0, 0, s390_r2, 0);
5133
5134 /*---------------------------------------------------------------*/
5135 /* Set our lmf as the current lmf */
5136 /*---------------------------------------------------------------*/
5137 s390_stg (code, s390_r13, 0, s390_r2, 0);
5138
5139 /*---------------------------------------------------------------*/
5140 /* Have our lmf.previous_lmf point to the last lmf */
5141 /*---------------------------------------------------------------*/
5142 s390_stg (code, s390_r0, 0, s390_r13,
5143 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
5144
5145 /*---------------------------------------------------------------*/
5146 /* save method info */
5147 /*---------------------------------------------------------------*/
5148 s390_basr (code, s390_r1, 0);
5149 s390_j (code, 6);
5150 s390_llong (code, method);
5151 s390_lg (code, s390_r1, 0, s390_r1, 4);
5152 s390_stg (code, s390_r1, 0, s390_r13,
5153 G_STRUCT_OFFSET(MonoLMF, method));
5154
5155 /*---------------------------------------------------------------*/
5156 /* save the current IP */
5157 /*---------------------------------------------------------------*/
5158 s390_stg (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
5159 s390_basr (code, s390_r1, 0);
5160 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
5161
5162 /*---------------------------------------------------------------*/
5163 /* Save general and floating point registers */
5164 /*---------------------------------------------------------------*/
5165 s390_stmg (code, s390_r2, s390_r12, s390_r13,
5166 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
5167 for (i = 0; i < 16; i++) {
5168 s390_std (code, i, 0, s390_r13,
5169 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
5170 }
5171
5172 /*---------------------------------------------------------------*/
5173 /* Restore the parameter registers now that we've set up the lmf */
5174 /*---------------------------------------------------------------*/
5175 s390_lmg (code, s390_r2, s390_r6, s390_r13,
5176 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
5177 }
5178
5179 if (tracing)
5180 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
5181
5182 cfg->code_len = code - cfg->native_code;
5183 g_assert (cfg->code_len < cfg->code_size);
5184
5185 return code;
5186 }
5187
5188 /*========================= End of Function ========================*/
5189
5190 /*------------------------------------------------------------------*/
5191 /* */
5192 /* Name - mono_arch_emit_epilog */
5193 /* */
5194 /* Function - Emit the instructions for a function epilog. */
5195 /* */
5196 /*------------------------------------------------------------------*/
5197
5198 void
5199 mono_arch_emit_epilog (MonoCompile *cfg)
5200 {
5201 MonoMethod *method = cfg->method;
5202 int tracing = 0;
5203 guint8 *code;
5204 int max_epilog_size = 96;
5205
5206 if (cfg->method->save_lmf)
5207 max_epilog_size += 128;
5208
5209 if (mono_jit_trace_calls != NULL)
5210 max_epilog_size += 128;
5211
5212 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5213 max_epilog_size += 128;
5214
5215 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
5216 cfg->code_size *= 2;
5217 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5218 mono_jit_stats.code_reallocs++;
5219 }
5220
5221 code = cfg->native_code + cfg->code_len;
5222
5223 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5224 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5225 tracing = 1;
5226 }
5227
5228 if (method->save_lmf)
5229 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
5230
5231 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
5232 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
5233 else
5234 code = backUpStackPtr(cfg, code);
5235
5236 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5237 s390_br (code, s390_r14);
5238
5239 cfg->code_len = code - cfg->native_code;
5240
5241 g_assert (cfg->code_len < cfg->code_size);
5242
5243 }
5244
5245 /*========================= End of Function ========================*/
5246
5247 /*------------------------------------------------------------------*/
5248 /* */
5249 /* Name - mono_arch_emit_exceptions */
5250 /* */
5251 /* Function - Emit the blocks to handle exception conditions. */
5252 /* */
5253 /*------------------------------------------------------------------*/
5254
5255 void
5256 mono_arch_emit_exceptions (MonoCompile *cfg)
5257 {
5258 MonoJumpInfo *patch_info;
5259 guint8 *code;
5260 int nThrows = 0,
5261 exc_count = 0,
5262 iExc;
5263 guint32 code_size;
5264 MonoClass *exc_classes [MAX_EXC];
5265 guint8 *exc_throw_start [MAX_EXC];
5266
5267 for (patch_info = cfg->patch_info;
5268 patch_info;
5269 patch_info = patch_info->next) {
5270 if (patch_info->type == MONO_PATCH_INFO_EXC)
5271 exc_count++;
5272 }
5273
5274 code_size = exc_count * 48;
5275
5276 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
5277 cfg->code_size *= 2;
5278 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5279 mono_jit_stats.code_reallocs++;
5280 }
5281
5282 code = cfg->native_code + cfg->code_len;
5283
5284 /*---------------------------------------------------------------------*/
5285 /* Add code to raise exceptions */
5286 /*---------------------------------------------------------------------*/
5287 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5288 switch (patch_info->type) {
5289 case MONO_PATCH_INFO_EXC: {
5290 guint8 *ip = patch_info->ip.i + cfg->native_code;
5291 MonoClass *exc_class;
5292 guint64 throw_ip;
5293
5294 /*-----------------------------------------------------*/
5295 /* Patch the branch in epilog to come here */
5296 /*-----------------------------------------------------*/
5297 s390_patch_rel (ip + 2, (guint64) S390_RELATIVE(code,ip));
5298
5299 exc_class = mono_class_from_name (mono_defaults.corlib,
5300 "System",
5301 patch_info->data.name);
5302 g_assert (exc_class);
5303 throw_ip = patch_info->ip.i;
5304
5305 for (iExc = 0; iExc < nThrows; ++iExc)
5306 if (exc_classes [iExc] == exc_class)
5307 break;
5308
5309 if (iExc < nThrows) {
5310 s390_jcl (code, S390_CC_UN,
5311 (guint64) exc_throw_start [iExc]);
5312 patch_info->type = MONO_PATCH_INFO_NONE;
5313 } else {
5314
5315 if (nThrows < MAX_EXC) {
5316 exc_classes [nThrows] = exc_class;
5317 exc_throw_start [nThrows] = code;
5318 }
5319
5320 /*---------------------------------------------*/
5321 /* Patch the parameter passed to the handler */
5322 /*---------------------------------------------*/
5323 s390_basr (code, s390_r13, 0);
5324 s390_j (code, 6);
5325 s390_llong(code, patch_info->data.target);
5326 /*---------------------------------------------*/
5327 /* Load return address & parameter register */
5328 /*---------------------------------------------*/
5329 s390_larl (code, s390_r14, (guint64)S390_RELATIVE((patch_info->ip.i +
5330 cfg->native_code + 8), code));
5331 s390_lg (code, s390_r2, 0, s390_r13, 4);
5332 /*---------------------------------------------*/
5333 /* Reuse the current patch to set the jump */
5334 /*---------------------------------------------*/
5335 s390_basr (code, s390_r13, 0);
5336 s390_j (code, 6);
5337 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5338 patch_info->data.name = "mono_arch_throw_exception_by_name";
5339 patch_info->ip.i = code - cfg->native_code;
5340 s390_llong(code, 0);
5341 s390_lg (code, s390_r1, 0, s390_r13, 4);
5342 s390_br (code, s390_r1);
5343 }
5344 break;
5345 }
5346 default:
5347 /* do nothing */
5348 break;
5349 }
5350 }
5351
5352 cfg->code_len = code - cfg->native_code;
5353
5354 g_assert (cfg->code_len < cfg->code_size);
5355
5356 }
5357
5358 /*========================= End of Function ========================*/
5359
5360 /*------------------------------------------------------------------*/
5361 /* */
5362 /* Name - mono_arch_setup_jit_tls_data */
5363 /* */
5364 /* Function - Setup the JIT's Thread Level Specific Data. */
5365 /* */
5366 /*------------------------------------------------------------------*/
5367
5368 void
5369 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
5370 {
5371 if (!tls_offset_inited) {
5372 tls_offset_inited = TRUE;
5373
5374 #if HAVE_KW_THREAD
5375 # if 0
5376 __asm__ ("\tear\t%r1,0\n"
5377 "\tlr\t%0,%3\n"
5378 "\tsr\t%0,%r1\n"
5379 "\tlr\t%1,%4\n"
5380 "\tsr\t%1,%r1\n"
5381 "\tlr\t%2,%5\n"
5382 "\tsr\t%2,%r1\n"
5383 : "=r" (appdomain_tls_offset),
5384 "=r" (thread_tls_offset),
5385 "=r" (lmf_tls_offset)
5386 : "r" (&tls_appdomain),
5387 "r" (&tls_current_object),
5388 "r" (&mono_lmf_addr)
5389 : "1", "cc");
5390 # endif
5391 #endif
5392 }
5393
5394 if (!lmf_addr_key_inited) {
5395 lmf_addr_key_inited = TRUE;
5396 pthread_key_create (&lmf_addr_key, NULL);
5397 }
5398 pthread_setspecific (lmf_addr_key, &tls->lmf);
5399
5400 }
5401
5402 /*========================= End of Function ========================*/
5403
5404 /*------------------------------------------------------------------*/
5405 /* */
5406 /* Name - mono_arch_free_jit_tls_data */
5407 /* */
5408 /* Function - Free tls data. */
5409 /* */
5410 /*------------------------------------------------------------------*/
5411
5412 void
5413 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5414 {
5415
5416 }
5417
5418 /*========================= End of Function ========================*/
5419
5420 /*------------------------------------------------------------------*/
5421 /* */
5422 /* Name - mono_arch_emit_this_vret_args */
5423 /* */
5424 /* Function - */
5425 /* */
5426 /*------------------------------------------------------------------*/
5427
5428 void
5429 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
5430 {
5431 int this_dreg = s390_r2;
5432
5433 if (vt_reg != -1)
5434 this_dreg = s390_r3;
5435
5436 /* add the this argument */
5437 if (this_reg != -1) {
5438 MonoInst *this;
5439 MONO_INST_NEW (cfg, this, OP_MOVE);
5440 this->type = this_type;
5441 this->sreg1 = this_reg;
5442 this->dreg = mono_regstate_next_int (cfg->rs);
5443 mono_bblock_add_inst (cfg->cbb, this);
5444 mono_call_inst_add_outarg_reg (cfg, inst, this->dreg, this_dreg, FALSE);
5445 }
5446
5447 if (vt_reg != -1) {
5448 MonoInst *vtarg;
5449 MONO_INST_NEW (cfg, vtarg, OP_MOVE);
5450 vtarg->type = STACK_MP;
5451 vtarg->sreg1 = vt_reg;
5452 vtarg->dreg = mono_regstate_next_int (cfg->rs);
5453 mono_bblock_add_inst (cfg->cbb, vtarg);
5454 mono_call_inst_add_outarg_reg (cfg, inst, vtarg->dreg, s390_r2, FALSE);
5455 }
5456 }
5457
5458 /*========================= End of Function ========================*/
5459
5460 /*------------------------------------------------------------------*/
5461 /* */
5462 /* Name - mono_arch_get_inst_for_method */
5463 /* */
5464 /* Function - Check for opcodes we can handle directly in */
5465 /* hardware. */
5466 /* */
5467 /*------------------------------------------------------------------*/
5468
5469 MonoInst*
5470 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
5471 MonoMethodSignature *fsig, MonoInst **args)
5472 {
5473 MonoInst *ins = NULL;
5474
5475 if (cmethod->klass == mono_defaults.math_class) {
5476 if (strcmp (cmethod->name, "Sqrt") == 0) {
5477 MONO_INST_NEW (cfg, ins, OP_SQRT);
5478 ins->inst_i0 = args [0];
5479 }
5480 // if (strcmp (cmethod->name, "Abs") == 0) {
5481 // MONO_INST_NEW (cfg, ins, OP_ABS);
5482 // ins->inst_i0 = args [0];
5483 // }
5484 }
5485
5486 return ins;
5487 }
5488
5489 /*========================= End of Function ========================*/
5490
5491 /*------------------------------------------------------------------*/
5492 /* */
5493 /* Name - mono_arch_emit_inst_for_method */
5494 /* */
5495 /*------------------------------------------------------------------*/
5496
5497 MonoInst*
5498 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5499 {
5500 return NULL;
5501 }
5502
5503 /*========================= End of Function ========================*/
5504
5505 void
5506 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5507 {
5508 /*
5509 * Have to rename these to avoid being decomposed normally, since the normal
5510 * decomposition does not work on S390.
5511 */
5512 switch (ins->opcode) {
5513 case OP_ISUB_OVF:
5514 ins->opcode = OP_S390_ISUB_OVF;
5515 break;
5516 case OP_ISUB_OVF_UN:
5517 ins->opcode = OP_S390_ISUB_OVF_UN;
5518 break;
5519 case OP_IADD_OVF:
5520 ins->opcode = OP_S390_IADD_OVF;
5521 break;
5522 case OP_IADD_OVF_UN:
5523 ins->opcode = OP_S390_IADD_OVF_UN;
5524 break;
5525 case OP_LADD_OVF:
5526 ins->opcode = OP_S390_LADD_OVF;
5527 break;
5528 case OP_LADD_OVF_UN:
5529 ins->opcode = OP_S390_LADD_OVF_UN;
5530 break;
5531 case OP_LSUB_OVF:
5532 ins->opcode = OP_S390_LSUB_OVF;
5533 break;
5534 case OP_LSUB_OVF_UN:
5535 ins->opcode = OP_S390_LSUB_OVF_UN;
5536 break;
5537 default:
5538 break;
5539 }
5540 }
5541
5542 /*========================= End of Function ========================*/
5543
5544 /*------------------------------------------------------------------*/
5545 /* */
5546 /* Name - mono_arch_print_tree */
5547 /* */
5548 /* Function - Print platform-specific opcode details. */
5549 /* */
5550 /* Returns - 1 - opcode details have been printed */
5551 /* 0 - opcode details have not been printed */
5552 /* */
5553 /*------------------------------------------------------------------*/
5554
5555 gboolean
5556 mono_arch_print_tree (MonoInst *tree, int arity)
5557 {
5558 gboolean done;
5559
5560 switch (tree->opcode) {
5561 case OP_S390_LOADARG:
5562 case OP_S390_ARGREG:
5563 case OP_S390_ARGPTR:
5564 printf ("[0x%lx(%s)]", tree->inst_offset,
5565 mono_arch_regname (tree->inst_basereg));
5566 done = 1;
5567 break;
5568 case OP_S390_STKARG:
5569 printf ("[0x%lx(previous_frame)]",
5570 tree->inst_offset);
5571 done = 1;
5572 break;
5573 case OP_S390_MOVE:
5574 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5575 tree->inst_offset, tree->backend.size,
5576 mono_arch_regname(tree->dreg),
5577 tree->inst_imm,
5578 mono_arch_regname(tree->sreg1));
5579 done = 1;
5580 break;
5581 case OP_S390_SETF4RET:
5582 printf ("[f%s,f%s]",
5583 mono_arch_regname (tree->dreg),
5584 mono_arch_regname (tree->sreg1));
5585 done = 1;
5586 break;
5587 case OP_TLS_GET:
5588 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5589 tree->inst_imm,
5590 mono_arch_regname (tree->sreg1));
5591 done = 1;
5592 break;
5593 case OP_S390_BKCHAIN:
5594 printf ("[previous_frame(%s)]",
5595 mono_arch_regname (tree->sreg1));
5596 done = 1;
5597 default:
5598 done = 0;
5599 }
5600 return (done);
5601 }
5602
5603 /*========================= End of Function ========================*/
5604
5605 /*------------------------------------------------------------------*/
5606 /* */
5607 /* Name - mono_arch_regalloc_cost */
5608 /* */
5609 /* Function - Determine the cost, in the number of memory */
5610 /* references, of the action of allocating the var- */
5611 /* iable VMV into a register during global register */
5612 /* allocation. */
5613 /* */
5614 /* Returns - Cost */
5615 /* */
5616 /*------------------------------------------------------------------*/
5617
5618 guint32
5619 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5620 {
5621 /* FIXME: */
5622 return 2;
5623 }
5624
5625 /*========================= End of Function ========================*/
5626
5627 /*------------------------------------------------------------------*/
5628 /* */
5629 /* Name - mono_arch_get_domain_intrinsic */
5630 /* */
5631 /* Function - */
5632 /* */
5633 /* Returns - */
5634 /* */
5635 /*------------------------------------------------------------------*/
5636
5637 MonoInst *
5638 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5639 {
5640 MonoInst *ins;
5641
5642 if (appdomain_tls_offset == -1)
5643 return NULL;
5644
5645 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5646 ins->inst_offset = appdomain_tls_offset;
5647 return (ins);
5648 }
5649
5650 /*========================= End of Function ========================*/
5651
5652 /*------------------------------------------------------------------*/
5653 /* */
5654 /* Name - mono_arch_get_thread_intrinsic */
5655 /* */
5656 /* Function - */
5657 /* */
5658 /* Returns - */
5659 /* */
5660 /*------------------------------------------------------------------*/
5661
5662 MonoInst *
5663 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5664 {
5665 MonoInst *ins;
5666
5667 if (thread_tls_offset == -1)
5668 return NULL;
5669
5670 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5671 ins->inst_offset = thread_tls_offset;
5672 return (ins);
5673 }
5674
5675 /*========================= End of Function ========================*/
5676
5677 /*------------------------------------------------------------------*/
5678 /* */
5679 /* Name - mono_arch_flush_register_windows */
5680 /* */
5681 /* Function - */
5682 /* */
5683 /* Returns - */
5684 /* */
5685 /*------------------------------------------------------------------*/
5686
5687 void
5688 mono_arch_flush_register_windows (void)
5689 {
5690 }
5691
5692 /*========================= End of Function ========================*/
5693
5694 /*------------------------------------------------------------------*/
5695 /* */
5696 /* Name - mono_arch_get_lmf_addr */
5697 /* */
5698 /* Function - */
5699 /* */
5700 /* Returns - */
5701 /* */
5702 /*------------------------------------------------------------------*/
5703
5704 gpointer
5705 mono_arch_get_lmf_addr (void)
5706 {
5707 return pthread_getspecific (lmf_addr_key);
5708 }
5709
5710 /*========================= End of Function ========================*/
5711
5712 /*------------------------------------------------------------------*/
5713 /* */
5714 /* Name - mono_arch_is_inst_imm */
5715 /* */
5716 /* Function - Determine if operand qualifies as an immediate */
5717 /* value. For s390 this is a value -32768-32768 */
5718 /* */
5719 /* Returns - True|False - is [not] immediate value. */
5720 /* */
5721 /*------------------------------------------------------------------*/
5722
5723 gboolean
5724 mono_arch_is_inst_imm (gint64 imm)
5725 {
5726 return s390_is_imm16 (imm);
5727 }
5728
5729 /*========================= End of Function ========================*/
5730
5731 /*------------------------------------------------------------------*/
5732 /* */
5733 /* Name - mono_arch_get_patch_offset */
5734 /* */
5735 /* Function - Dummy entry point until s390x supports aot. */
5736 /* */
5737 /* Returns - Offset for patch. */
5738 /* */
5739 /*------------------------------------------------------------------*/
5740
5741 guint32
5742 mono_arch_get_patch_offset (guint8 *code)
5743 {
5744 return 0;
5745 }
5746
5747 /*========================= End of Function ========================*/
5748
5749 gpointer
5750 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5751 {
5752 /* FIXME: implement */
5753 g_assert_not_reached ();
5754 return NULL;
5755 }
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