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2009-01-07 Zoltan Varga <vargaz@gmail.com>
[mono-project.git] / mono / mini / mini-s390.c
blob34031741b0c1f68cf1cf08d658ef55ea76b1820f
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_lr (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_lr (code, s390_r13, ins->sreg2); \
110 } else { \
111 src2 = ins->sreg2; \
112 } \
113 if (ins->dreg != ins->sreg1) { \
114 s390_lr (code, ins->dreg, ins->sreg1); \
115 }
116
117 #define CHECK_SRCDST_COM_F \
118 if (ins->dreg == ins->sreg2) { \
119 src2 = ins->sreg1; \
120 } else { \
121 src2 = ins->sreg2; \
122 if (ins->dreg != ins->sreg1) { \
123 s390_ldr (code, ins->dreg, ins->sreg1); \
124 } \
125 }
126
127 #define CHECK_SRCDST_NCOM_F \
128 if (ins->dreg == ins->sreg2) { \
129 src2 = s390_f15; \
130 s390_ldr (code, s390_r13, ins->sreg2); \
131 } else { \
132 src2 = ins->sreg2; \
133 } \
134 if (ins->dreg != ins->sreg1) { \
135 s390_ldr (code, ins->dreg, ins->sreg1); \
136 }
137
138 #define MONO_EMIT_NEW_MOVE2(cfg,dest,offset,src,imm,size) do { \
139 MonoInst *inst; \
140 int tmpr = 0; \
141 int sReg, dReg; \
142 MONO_INST_NEW (cfg, inst, OP_NOP); \
143 if (size > 256) { \
144 tmpr = mono_alloc_preg (cfg); \
145 MONO_EMIT_NEW_ICONST(cfg,tmpr,size); \
146 inst->dreg = dest; \
147 inst->inst_offset = offset; \
148 inst->sreg1 = src; \
149 inst->inst_imm = imm; \
150 inst->sreg2 = tmpr; \
151 } else { \
152 if (s390_is_uimm12(offset)) { \
153 inst->dreg = dest; \
154 inst->inst_offset = offset; \
155 } else { \
156 dReg = mono_alloc_preg (cfg); \
157 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
158 dReg, dest, offset); \
159 inst->dreg = dReg; \
160 inst->inst_offset = 0; \
161 } \
162 if (s390_is_uimm12(imm)) { \
163 inst->sreg1 = src; \
164 inst->inst_imm = imm; \
165 } else { \
166 sReg = mono_alloc_preg (cfg); \
167 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
168 sReg, src, imm); \
169 inst->sreg1 = sReg; \
170 inst->inst_imm = 0; \
171 } \
172 } \
173 inst->opcode = OP_S390_MOVE; \
174 inst->backend.size = size; \
175 MONO_ADD_INS (cfg->cbb, inst); \
176 } while (0)
177
178 #define MONO_OUTPUT_VTR2(cfg, size, dr, sr, so) do { \
179 int reg = mono_alloc_preg (cfg); \
180 switch (size) { \
181 case 0: \
182 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
183 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
184 break; \
185 case 1: \
186 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
187 reg, sr, so); \
188 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
189 break; \
190 case 2: \
191 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
192 reg, sr, so); \
193 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
194 break; \
195 case 4: \
196 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
197 reg, sr, so); \
198 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
199 break; \
200 case 8: \
201 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
202 reg, sr, so); \
203 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
204 reg = mono_alloc_preg (cfg); \
205 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
206 reg, sr, so + sizeof (guint32)); \
207 mono_call_inst_add_outarg_reg(cfg, call, reg, dr + 1, FALSE); \
208 break; \
209 } \
210 } while (0)
211
212 #define MONO_OUTPUT_VTS2(cfg, size, dr, dx, sr, so) do { \
213 int tmpr; \
214 switch (size) { \
215 case 0: \
216 tmpr = mono_alloc_preg (cfg); \
217 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
218 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
219 dr, dx, tmpr); \
220 break; \
221 case 1: \
222 tmpr = mono_alloc_preg (cfg); \
223 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
224 tmpr, sr, so); \
225 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
226 dr, dx, tmpr); \
227 break; \
228 case 2: \
229 tmpr = mono_alloc_preg (cfg); \
230 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
231 tmpr, sr, so); \
232 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
233 dr, dx, tmpr); \
234 break; \
235 case 4: \
236 case 8: \
237 MONO_EMIT_NEW_MOVE2 (cfg, dr, dx, sr, so, size); \
238 break; \
239 } \
240 } while (0)
241
242 #undef DEBUG
243 #define DEBUG(a) if (cfg->verbose_level > 1) a
244
245 #define MAX_EXC 16
246
247 #define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
248
249 #define MAX (a, b) ((a) > (b) ? (a) : (b))
250
251 /*========================= End of Defines =========================*/
252
253 /*------------------------------------------------------------------*/
254 /* I n c l u d e s */
255 /*------------------------------------------------------------------*/
256
257 #include "mini.h"
258 #include <string.h>
259
260 #include <mono/metadata/appdomain.h>
261 #include <mono/metadata/debug-helpers.h>
262 #include <mono/metadata/profiler-private.h>
263 #include <mono/utils/mono-math.h>
264
265 #include "mini-s390.h"
266 #include "inssel.h"
267 #include "cpu-s390.h"
268 #include "jit-icalls.h"
269
270 /*========================= End of Includes ========================*/
271
272 /*------------------------------------------------------------------*/
273 /* T y p e d e f s */
274 /*------------------------------------------------------------------*/
275
276 typedef struct {
277 guint stack_size,
278 local_size,
279 code_size,
280 parm_size,
281 offset,
282 offStruct,
283 retStruct;
284 } size_data;
285
286 /*------------------------------------------------------------------*/
287 /* Used by the instrument_emit_epilog */
288 /*------------------------------------------------------------------*/
289
290 enum {
291 SAVE_NONE,
292 SAVE_STRUCT,
293 SAVE_ONE,
294 SAVE_TWO,
295 SAVE_R4,
296 SAVE_R8
297 };
298
299 typedef struct InstList InstList;
300
301 struct InstList {
302 InstList *prev;
303 InstList *next;
304 MonoInst *data;
305 };
306
307 typedef enum {
308 RegTypeGeneral,
309 RegTypeBase,
310 RegTypeFP,
311 RegTypeFPR4,
312 RegTypeStructByVal,
313 RegTypeStructByValInFP,
314 RegTypeStructByAddr
315 } ArgStorage;
316
317 typedef struct {
318 gint32 offset; /* offset from caller's stack */
319 gint32 offparm; /* offset from callee's stack */
320 guint16 vtsize; /* in param area */
321 guint8 reg;
322 ArgStorage regtype; /* See RegType* */
323 guint32 size; /* Size of structure used by RegTypeStructByVal */
324 } ArgInfo;
325
326 typedef struct {
327 int nargs;
328 int lastgr;
329 guint32 stack_usage;
330 guint32 struct_ret;
331 ArgInfo ret;
332 ArgInfo sigCookie;
333 size_data sz;
334 ArgInfo args [1];
335 } CallInfo;
336
337 typedef struct {
338 gint32 gr[5]; /* R2-R6 */
339 gdouble fp[3]; /* F0-F2 */
340 } __attribute__ ((packed)) RegParm;
341
342 /*========================= End of Typedefs ========================*/
343
344 /*------------------------------------------------------------------*/
345 /* P r o t o t y p e s */
346 /*------------------------------------------------------------------*/
347
348 static void indent (int);
349 static guint8 * backUpStackPtr(MonoCompile *, guint8 *, gint);
350 static void decodeParm (MonoType *, void *, int);
351 static void enter_method (MonoMethod *, RegParm *, char *);
352 static void leave_method (MonoMethod *, ...);
353 static gboolean is_regsize_var (MonoType *);
354 static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
355 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
356 static inline void add_float (guint *, size_data *, ArgInfo *);
357 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
358 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
359 gpointer mono_arch_get_lmf_addr (void);
360 static guint8 * emit_load_volatile_registers(guint8 *, MonoCompile *);
361 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *, int);
362
363 /*========================= End of Prototypes ======================*/
364
365 /*------------------------------------------------------------------*/
366 /* G l o b a l V a r i a b l e s */
367 /*------------------------------------------------------------------*/
368
369 int mono_exc_esp_offset = 0;
370
371 static int indent_level = 0;
372
373 static gboolean tls_offset_inited = FALSE;
374
375 static int appdomain_tls_offset = -1,
376 thread_tls_offset = -1;
377
378 pthread_key_t lmf_addr_key;
379
380 gboolean lmf_addr_key_inited = FALSE;
381
382 #if 0
383
384 extern __thread MonoDomain *tls_appdomain;
385 extern __thread MonoThread *tls_current_object;
386 extern __thread gpointer mono_lmf_addr;
387
388 #endif
389
390 /*====================== End of Global Variables ===================*/
391
392 /*------------------------------------------------------------------*/
393 /* */
394 /* Name - mono_arch_regname */
395 /* */
396 /* Function - Returns the name of the register specified by */
397 /* the input parameter. */
398 /* */
399 /*------------------------------------------------------------------*/
400
401 const char*
402 mono_arch_regname (int reg) {
403 static const char * rnames[] = {
404 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
405 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
406 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
407 "s390_r15"
408 };
409
410 if (reg >= 0 && reg < 16)
411 return rnames [reg];
412 else
413 return "unknown";
414 }
415
416 /*========================= End of Function ========================*/
417
418 /*------------------------------------------------------------------*/
419 /* */
420 /* Name - mono_arch_fregname */
421 /* */
422 /* Function - Returns the name of the register specified by */
423 /* the input parameter. */
424 /* */
425 /*------------------------------------------------------------------*/
426
427 const char*
428 mono_arch_fregname (int reg) {
429 static const char * rnames[] = {
430 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
431 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
432 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
433 "s390_f15"
434 };
435
436 if (reg >= 0 && reg < 16)
437 return rnames [reg];
438 else
439 return "unknown";
440 }
441
442 /*========================= End of Function ========================*/
443
444 /*------------------------------------------------------------------*/
445 /* */
446 /* Name - arch_get_argument_info */
447 /* */
448 /* Function - Gathers information on parameters such as size, */
449 /* alignment, and padding. arg_info should be large */
450 /* enough to hold param_count + 1 entries. */
451 /* */
452 /* Parameters - @csig - Method signature */
453 /* @param_count - No. of parameters to consider */
454 /* @arg_info - An array to store the result info */
455 /* */
456 /* Returns - Size of the activation frame */
457 /* */
458 /*------------------------------------------------------------------*/
459
460 int
461 mono_arch_get_argument_info (MonoMethodSignature *csig,
462 int param_count,
463 MonoJitArgumentInfo *arg_info)
464 {
465 int k, frame_size = 0;
466 int size, align, pad;
467 int offset = 8;
468
469 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
470 frame_size += sizeof (gpointer);
471 offset += 4;
472 }
473
474 arg_info [0].offset = offset;
475
476 if (csig->hasthis) {
477 frame_size += sizeof (gpointer);
478 offset += 4;
479 }
480
481 arg_info [0].size = frame_size;
482
483 for (k = 0; k < param_count; k++) {
484
485 if (csig->pinvoke)
486 size = mono_type_native_stack_size (csig->params [k], &align);
487 else
488 size = mini_type_stack_size (NULL, csig->params [k], &align);
489
490 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
491 arg_info [k].pad = pad;
492 frame_size += size;
493 arg_info [k + 1].pad = 0;
494 arg_info [k + 1].size = size;
495 offset += pad;
496 arg_info [k + 1].offset = offset;
497 offset += size;
498 }
499
500 align = MONO_ARCH_FRAME_ALIGNMENT;
501 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
502 arg_info [k].pad = pad;
503
504 return frame_size;
505 }
506
507 /*========================= End of Function ========================*/
508
509 /*------------------------------------------------------------------*/
510 /* */
511 /* Name - retFitsInReg. */
512 /* */
513 /* Function - Determines if a value can be returned in one or */
514 /* two registers. */
515 /* */
516 /*------------------------------------------------------------------*/
517
518 static inline gboolean
519 retFitsInReg(guint32 size)
520 {
521 switch (size) {
522 case 0:
523 case 1:
524 case 2:
525 case 4:
526 case 8:
527 return (TRUE);
528 break;
529 default:
530 return (FALSE);
531 }
532 }
533
534 /*========================= End of Function ========================*/
535
536 /*------------------------------------------------------------------*/
537 /* */
538 /* Name - backStackPtr. */
539 /* */
540 /* Function - Restore Stack Pointer to previous frame. */
541 /* */
542 /*------------------------------------------------------------------*/
543
544 static inline guint8 *
545 backUpStackPtr(MonoCompile *cfg, guint8 *code, gint framePtr)
546 {
547 int stackSize = cfg->stack_usage;
548
549 if (s390_is_uimm16 (cfg->stack_usage)) {
550 s390_ahi (code, framePtr, cfg->stack_usage);
551 } else {
552 while (stackSize > 32767) {
553 s390_ahi (code, framePtr, 32767);
554 stackSize -= 32767;
555 }
556 s390_ahi (code, framePtr, stackSize);
557 }
558 return (code);
559 }
560
561 /*========================= End of Function ========================*/
562
563 /*------------------------------------------------------------------*/
564 /* */
565 /* Name - indent */
566 /* */
567 /* Function - Perform nice indenting to current level */
568 /* */
569 /*------------------------------------------------------------------*/
570
571 static void
572 indent (int diff) {
573 int v;
574 if (diff < 0)
575 indent_level += diff;
576 v = indent_level;
577 printf("[%3d] ",v);
578 while (v-- > 0) {
579 printf (". ");
580 }
581 if (diff > 0)
582 indent_level += diff;
583 }
584
585 /*========================= End of Function ========================*/
586
587 /*------------------------------------------------------------------*/
588 /* */
589 /* Name - decodeParm */
590 /* */
591 /* Function - Decode a parameter for the trace. */
592 /* */
593 /*------------------------------------------------------------------*/
594
595 static void
596 decodeParm(MonoType *type, void *curParm, int size)
597 {
598 guint32 simpleType;
599
600 if (type->byref) {
601 printf("[BYREF:%p], ", *((char **) curParm));
602 } else {
603 simpleType = mono_type_get_underlying_type(type)->type;
604 enum_parmtype:
605 switch (simpleType) {
606 case MONO_TYPE_I :
607 printf ("[INTPTR:%p], ", *((int **) curParm));
608 break;
609 case MONO_TYPE_U :
610 printf ("[UINTPTR:%p], ", *((int **) curParm));
611 break;
612 case MONO_TYPE_BOOLEAN :
613 printf ("[BOOL:%d], ", *((int *) curParm));
614 break;
615 case MONO_TYPE_CHAR :
616 printf ("[CHAR:%c], ", *((int *) curParm));
617 break;
618 case MONO_TYPE_I1 :
619 printf ("[INT1:%d], ", *((int *) curParm));
620 break;
621 case MONO_TYPE_I2 :
622 printf ("[INT2:%d], ", *((int *) curParm));
623 break;
624 case MONO_TYPE_I4 :
625 printf ("[INT4:%d], ", *((int *) curParm));
626 break;
627 case MONO_TYPE_U1 :
628 printf ("[UINT1:%u], ", *((unsigned int *) curParm));
629 break;
630 case MONO_TYPE_U2 :
631 printf ("[UINT2:%u], ", *((guint16 *) curParm));
632 break;
633 case MONO_TYPE_U4 :
634 printf ("[UINT4:%u], ", *((guint32 *) curParm));
635 break;
636 case MONO_TYPE_U8 :
637 printf ("[UINT8:%llu], ", *((guint64 *) curParm));
638 break;
639 case MONO_TYPE_STRING : {
640 MonoString *s = *((MonoString **) curParm);
641 if (s) {
642 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
643 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
644 } else {
645 printf("[STRING:null], ");
646 }
647 break;
648 }
649 case MONO_TYPE_CLASS :
650 case MONO_TYPE_OBJECT : {
651 MonoObject *obj = *((MonoObject **) curParm);
652 MonoClass *class;
653 if ((obj) && (obj->vtable)) {
654 printf("[CLASS/OBJ:");
655 class = obj->vtable->klass;
656 printf("%p [%p] ",obj,curParm);
657 // if (class == mono_defaults.string_class) {
658 // printf("[STRING:%p:%s]",
659 // *obj, mono_string_to_utf8 (obj));
660 // } else if (class == mono_defaults.int32_class) {
661 // printf("[INT32:%p:%d]",
662 // obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
663 // } else
664 // printf("[%s.%s:%p]",
665 // class->name_space, class->name, obj);
666 printf("], ");
667 } else {
668 printf("[OBJECT:null], ");
669 }
670 break;
671 }
672 case MONO_TYPE_PTR :
673 printf("[PTR:%p], ", *((gpointer **) (curParm)));
674 break;
675 case MONO_TYPE_FNPTR :
676 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
677 break;
678 case MONO_TYPE_ARRAY :
679 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
680 break;
681 case MONO_TYPE_SZARRAY :
682 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
683 break;
684 case MONO_TYPE_I8 :
685 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
686 break;
687 case MONO_TYPE_R4 :
688 printf("[FLOAT4:%g], ", *((double *) (curParm)));
689 break;
690 case MONO_TYPE_R8 :
691 printf("[FLOAT8:%g], ", *((double *) (curParm)));
692 break;
693 case MONO_TYPE_VALUETYPE : {
694 int i;
695 MonoMarshalType *info;
696
697 if (type->data.klass->enumtype) {
698 simpleType = type->data.klass->enum_basetype->type;
699 printf("{VALUETYPE} - ");
700 goto enum_parmtype;
701 }
702
703 info = mono_marshal_load_type_info (type->data.klass);
704
705 if ((info->native_size == sizeof(float)) &&
706 (info->num_fields == 1) &&
707 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
708 printf("[FLOAT4:%f], ", *((float *) (curParm)));
709 break;
710 }
711
712 if ((info->native_size == sizeof(double)) &&
713 (info->num_fields == 1) &&
714 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
715 printf("[FLOAT8:%g], ", *((double *) (curParm)));
716 break;
717 }
718
719 printf("[VALUETYPE:");
720 for (i = 0; i < size; i++)
721 printf("%02x,", *((guint8 *)curParm+i));
722 printf("]");
723 break;
724 }
725 case MONO_TYPE_TYPEDBYREF: {
726 int i;
727 printf("[TYPEDBYREF:");
728 for (i = 0; i < size; i++)
729 printf("%02x,", *((guint8 *)curParm+i));
730 printf("]");
731 break;
732 }
733 default :
734 printf("[?? - %d], ",simpleType);
735 }
736 }
737 }
738
739 /*========================= End of Function ========================*/
740
741 //static int lc = 0;
742
743 /*------------------------------------------------------------------*/
744 /* */
745 /* Name - enter_method */
746 /* */
747 /* Function - Perform tracing of the entry to the current */
748 /* method. */
749 /* */
750 /*------------------------------------------------------------------*/
751
752 static void
753 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
754 {
755 int i, oParm = 0, iParm = 0;
756 MonoObject *obj;
757 MonoMethodSignature *sig;
758 char *fname;
759 guint32 ip;
760 CallInfo *cinfo;
761 ArgInfo *ainfo;
762 void *curParm;
763
764 fname = mono_method_full_name (method, TRUE);
765 indent (1);
766 printf ("ENTER: %s(", fname);
767 g_free (fname);
768
769 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
770 printf (") ip: %p sp: %p - ", (gpointer) ip, sp);
771
772 if (rParm == NULL)
773 return;
774
775 sig = mono_method_signature (method);
776
777 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
778
779 if (cinfo->struct_ret) {
780 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
781 iParm = 1;
782 }
783
784 if (sig->hasthis) {
785 gpointer *this = (gpointer *) rParm->gr[iParm];
786 obj = (MonoObject *) this;
787 if (method->klass->valuetype) {
788 if (obj) {
789 printf("this:[value:%p:%08x], ",
790 this, *((guint32 *)(this+sizeof(MonoObject))));
791 } else
792 printf ("this:[NULL], ");
793 } else {
794 if (obj) {
795 // class = obj->vtable->klass;
796 // if (class == mono_defaults.string_class) {
797 // printf ("this:[STRING:%p:%s], ",
798 // obj, mono_string_to_utf8 ((MonoString *)obj));
799 // } else {
800 // printf ("this:%p[%s.%s], ",
801 // obj, class->name_space, class->name);
802 // }
803 printf("this:%p, ",obj);
804 } else
805 printf ("this:NULL, ");
806 }
807 oParm++;
808 }
809
810 for (i = 0; i < sig->param_count; ++i) {
811 ainfo = &cinfo->args[i + oParm];
812 switch (ainfo->regtype) {
813 case RegTypeGeneral :
814 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
815 break;
816 case RegTypeFP :
817 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
818 break;
819 case RegTypeBase :
820 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
821 break;
822 case RegTypeStructByVal :
823 if (ainfo->reg != STK_BASE)
824 curParm = &(rParm->gr[ainfo->reg-2]);
825 else
826 curParm = sp+ainfo->offset;
827
828 if (retFitsInReg (ainfo->vtsize))
829 decodeParm(sig->params[i],
830 curParm,
831 ainfo->size);
832 else
833 decodeParm(sig->params[i],
834 *((char **) curParm),
835 ainfo->vtsize);
836 break;
837 case RegTypeStructByAddr :
838 if (ainfo->reg != STK_BASE)
839 curParm = &(rParm->gr[ainfo->reg-2]);
840 else
841 curParm = sp+ainfo->offset;
842
843 decodeParm(sig->params[i],
844 *((char **) curParm),
845 ainfo->vtsize);
846 break;
847
848 default :
849 printf("???, ");
850 }
851 }
852 printf("\n");
853 g_free(cinfo);
854 }
855
856 /*========================= End of Function ========================*/
857
858 /*------------------------------------------------------------------*/
859 /* */
860 /* Name - leave_method */
861 /* */
862 /* Function - */
863 /* */
864 /*------------------------------------------------------------------*/
865
866 static void
867 leave_method (MonoMethod *method, ...)
868 {
869 MonoType *type;
870 char *fname;
871 guint32 ip;
872 va_list ap;
873
874 va_start(ap, method);
875
876 fname = mono_method_full_name (method, TRUE);
877 indent (-1);
878 printf ("LEAVE: %s", fname);
879 g_free (fname);
880
881 type = mono_method_signature (method)->ret;
882
883 handle_enum:
884 switch (type->type) {
885 case MONO_TYPE_VOID:
886 break;
887 case MONO_TYPE_BOOLEAN: {
888 int val = va_arg (ap, int);
889 if (val)
890 printf ("[TRUE:%d]", val);
891 else
892 printf ("[FALSE]");
893
894 break;
895 }
896 case MONO_TYPE_CHAR: {
897 int val = va_arg (ap, int);
898 printf ("[CHAR:%d]", val);
899 break;
900 }
901 case MONO_TYPE_I1: {
902 int val = va_arg (ap, int);
903 printf ("[INT1:%d]", val);
904 break;
905 }
906 case MONO_TYPE_U1: {
907 int val = va_arg (ap, int);
908 printf ("[UINT1:%d]", val);
909 break;
910 }
911 case MONO_TYPE_I2: {
912 int val = va_arg (ap, int);
913 printf ("[INT2:%d]", val);
914 break;
915 }
916 case MONO_TYPE_U2: {
917 int val = va_arg (ap, int);
918 printf ("[UINT2:%d]", val);
919 break;
920 }
921 case MONO_TYPE_I4: {
922 int val = va_arg (ap, int);
923 printf ("[INT4:%d]", val);
924 break;
925 }
926 case MONO_TYPE_U4: {
927 int val = va_arg (ap, int);
928 printf ("[UINT4:%d]", val);
929 break;
930 }
931 case MONO_TYPE_I: {
932 int val = va_arg (ap, int);
933 printf ("[INT:%d]", val);
934 printf("]");
935 break;
936 }
937 case MONO_TYPE_U: {
938 int val = va_arg (ap, int);
939 printf ("[UINT:%d]", val);
940 printf("]");
941 break;
942 }
943 case MONO_TYPE_STRING: {
944 MonoString *s = va_arg (ap, MonoString *);
945 ;
946 if (s) {
947 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
948 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
949 } else
950 printf ("[STRING:null], ");
951 break;
952 }
953 case MONO_TYPE_CLASS:
954 case MONO_TYPE_OBJECT: {
955 MonoObject *o = va_arg (ap, MonoObject *);
956
957 // if ((o) && (o->vtable)) {
958 // if (o->vtable->klass == mono_defaults.boolean_class) {
959 // printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
960 // } else if (o->vtable->klass == mono_defaults.int32_class) {
961 // printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
962 // } else if (o->vtable->klass == mono_defaults.int64_class) {
963 // printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
964 // } else
965 // printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
966 // } else
967 printf ("[OBJECT:%p]", o);
968
969 break;
970 }
971 case MONO_TYPE_PTR:
972 case MONO_TYPE_FNPTR:
973 case MONO_TYPE_ARRAY:
974 case MONO_TYPE_SZARRAY: {
975 gpointer p = va_arg (ap, gpointer);
976 printf ("[result=%p]", p);
977 break;
978 }
979 case MONO_TYPE_I8: {
980 gint64 l = va_arg (ap, gint64);
981 printf ("[LONG:%lld]", l);
982 break;
983 }
984 case MONO_TYPE_U8: {
985 guint64 l = va_arg (ap, guint64);
986 printf ("[ULONG:%llu]", l);
987 break;
988 }
989 case MONO_TYPE_R4: {
990 double f;
991 f = va_arg (ap, double);
992 printf ("[FLOAT4:%g]\n", f);
993 break;
994 }
995 case MONO_TYPE_R8: {
996 double f = va_arg (ap, double);
997 printf ("[FLOAT8:%g]\n", f);
998 break;
999 }
1000 case MONO_TYPE_VALUETYPE: {
1001 MonoMarshalType *info;
1002 if (type->data.klass->enumtype) {
1003 type = type->data.klass->enum_basetype;
1004 goto handle_enum;
1005 } else {
1006 guint8 *p = va_arg (ap, gpointer);
1007 int j, size, align;
1008
1009 info = mono_marshal_load_type_info (type->data.klass);
1010
1011 if ((info->native_size == sizeof(float)) &&
1012 (info->num_fields == 1) &&
1013 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1014 double f = va_arg (ap, double);
1015 printf("[FLOAT4:%g]\n", (double) f);
1016 break;
1017 }
1018
1019 if ((info->native_size == sizeof(double)) &&
1020 (info->num_fields == 1) &&
1021 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1022 double f = va_arg (ap, double);
1023 printf("[FLOAT8:%g]\n", f);
1024 break;
1025 }
1026
1027 size = mono_type_size (type, &align);
1028 switch (size) {
1029 case 1:
1030 case 2:
1031 case 4:
1032 case 8:
1033 printf ("[");
1034 for (j = 0; p && j < size; j++)
1035 printf ("%02x,", p [j]);
1036 printf ("]\n");
1037 break;
1038 default:
1039 printf ("[VALUERET]\n");
1040 }
1041 }
1042 break;
1043 }
1044 case MONO_TYPE_TYPEDBYREF: {
1045 guint8 *p = va_arg (ap, gpointer);
1046 int j, size, align;
1047 size = mono_type_size (type, &align);
1048 switch (size) {
1049 case 1:
1050 case 2:
1051 case 4:
1052 case 8:
1053 printf ("[");
1054 for (j = 0; p && j < size; j++)
1055 printf ("%02x,", p [j]);
1056 printf ("]\n");
1057 break;
1058 default:
1059 printf ("[TYPEDBYREF]\n");
1060 }
1061 }
1062 break;
1063 default:
1064 printf ("(unknown return type %x)",
1065 mono_method_signature (method)->ret->type);
1066 }
1067
1068 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
1069 printf (" ip: %p\n", (gpointer) ip);
1070 }
1071
1072 /*========================= End of Function ========================*/
1073
1074 /*------------------------------------------------------------------*/
1075 /* */
1076 /* Name - mono_arch_cpu_init */
1077 /* */
1078 /* Function - Perform CPU specific initialization to execute */
1079 /* managed code. */
1080 /* */
1081 /*------------------------------------------------------------------*/
1082
1083 void
1084 mono_arch_cpu_init (void)
1085 {
1086 guint mode = 1;
1087
1088 /*--------------------------------------*/
1089 /* Set default rounding mode for FP */
1090 /*--------------------------------------*/
1091 __asm__ ("SRNM\t%0\n\t"
1092 : : "m" (mode));
1093 }
1094
1095 /*========================= End of Function ========================*/
1096
1097
1098 /*
1099 * Initialize architecture specific code.
1100 */
1101 void
1102 mono_arch_init (void)
1103 {
1104 }
1105
1106 /*
1107 * Cleanup architecture specific code.
1108 */
1109 void
1110 mono_arch_cleanup (void)
1111 {
1112 }
1113
1114 /*------------------------------------------------------------------*/
1115 /* */
1116 /* Name - mono_arch_cpu_optimizazions */
1117 /* */
1118 /* Function - Returns the optimizations supported on this CPU */
1119 /* */
1120 /*------------------------------------------------------------------*/
1121
1122 guint32
1123 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1124 {
1125 guint32 opts = 0;
1126
1127 /*----------------------------------------------------------*/
1128 /* no s390-specific optimizations yet */
1129 /*----------------------------------------------------------*/
1130 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1131 // *exclude_mask = MONO_OPT_INLINE;
1132 return opts;
1133 }
1134
1135 /*========================= End of Function ========================*/
1136
1137 /*------------------------------------------------------------------*/
1138 /* */
1139 /* Name - */
1140 /* */
1141 /* Function - */
1142 /* */
1143 /*------------------------------------------------------------------*/
1144
1145 static gboolean
1146 is_regsize_var (MonoType *t) {
1147 if (t->byref)
1148 return TRUE;
1149 switch (mono_type_get_underlying_type (t)->type) {
1150 case MONO_TYPE_I4:
1151 case MONO_TYPE_U4:
1152 case MONO_TYPE_I:
1153 case MONO_TYPE_U:
1154 case MONO_TYPE_PTR:
1155 case MONO_TYPE_FNPTR:
1156 return TRUE;
1157 case MONO_TYPE_OBJECT:
1158 case MONO_TYPE_STRING:
1159 case MONO_TYPE_CLASS:
1160 case MONO_TYPE_SZARRAY:
1161 case MONO_TYPE_ARRAY:
1162 return FALSE;
1163 case MONO_TYPE_VALUETYPE:
1164 if (t->data.klass->enumtype)
1165 return is_regsize_var (t->data.klass->enum_basetype);
1166 return FALSE;
1167 }
1168 return FALSE;
1169 }
1170
1171 /*========================= End of Function ========================*/
1172
1173 /*------------------------------------------------------------------*/
1174 /* */
1175 /* Name - mono_arch_get_allocatable_int_vars */
1176 /* */
1177 /* Function - */
1178 /* */
1179 /*------------------------------------------------------------------*/
1180
1181 GList *
1182 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1183 {
1184 GList *vars = NULL;
1185 int i;
1186
1187 for (i = 0; i < cfg->num_varinfo; i++) {
1188 MonoInst *ins = cfg->varinfo [i];
1189 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1190
1191 /* unused vars */
1192 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1193 continue;
1194
1195 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1196 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1197 continue;
1198
1199 /* we can only allocate 32 bit values */
1200 if (is_regsize_var (ins->inst_vtype)) {
1201 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1202 g_assert (i == vmv->idx);
1203 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1204 }
1205 }
1206
1207 return vars;
1208 }
1209
1210 /*========================= End of Function ========================*/
1211
1212 /*------------------------------------------------------------------*/
1213 /* */
1214 /* Name - mono_arch_global_int_regs */
1215 /* */
1216 /* Function - Return a list of usable integer registers. */
1217 /* */
1218 /*------------------------------------------------------------------*/
1219
1220 GList *
1221 mono_arch_get_global_int_regs (MonoCompile *cfg)
1222 {
1223 GList *regs = NULL;
1224 MonoMethodHeader *header;
1225 int i, top = 13;
1226
1227 header = mono_method_get_header (cfg->method);
1228 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1229 cfg->frame_reg = s390_r11;
1230
1231 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1232 top = 12;
1233 for (i = 8; i < top; ++i) {
1234 if (cfg->frame_reg != i)
1235 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1236 }
1237
1238 return regs;
1239 }
1240
1241 /*========================= End of Function ========================*/
1242
1243 /*------------------------------------------------------------------*/
1244 /* */
1245 /* Name - mono_arch_flush_icache */
1246 /* */
1247 /* Function - Flush the CPU icache. */
1248 /* */
1249 /*------------------------------------------------------------------*/
1250
1251 void
1252 mono_arch_flush_icache (guint8 *code, gint size)
1253 {
1254 }
1255
1256 /*========================= End of Function ========================*/
1257
1258 /*------------------------------------------------------------------*/
1259 /* */
1260 /* Name - mono_arch_is_inst_imm */
1261 /* */
1262 /*------------------------------------------------------------------*/
1263
1264 gboolean
1265 mono_arch_is_inst_imm (gint64 imm)
1266 {
1267 /* The lowering pass will take care of it */
1268 return TRUE;
1269 }
1270
1271 /*========================= End of Function ========================*/
1272
1273 /*------------------------------------------------------------------*/
1274 /* */
1275 /* Name - add_general */
1276 /* */
1277 /* Function - Determine code and stack size incremements for a */
1278 /* parameter. */
1279 /* */
1280 /*------------------------------------------------------------------*/
1281
1282 static void inline
1283 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1284 {
1285 int disp;
1286
1287 if (simple) {
1288 if (*gr > S390_LAST_ARG_REG) {
1289 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1290 ainfo->offset = sz->stack_size;
1291 ainfo->reg = STK_BASE;
1292 ainfo->regtype = RegTypeBase;
1293 sz->stack_size += sizeof(int);
1294 sz->local_size += sizeof(int);
1295 sz->offStruct += sizeof(int);
1296 sz->code_size += 12;
1297 } else {
1298 ainfo->reg = *gr;
1299 sz->code_size += 8;
1300 }
1301 } else {
1302 if (*gr > S390_LAST_ARG_REG - 1) {
1303 disp = sz->stack_size;
1304 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1305 disp = sz->stack_size - disp;
1306 ainfo->offset = sz->stack_size;
1307 ainfo->reg = STK_BASE;
1308 ainfo->regtype = RegTypeBase;
1309 sz->stack_size += sizeof(long long);
1310 sz->local_size += (sizeof(long long) + disp);
1311 sz->offStruct += (sizeof(long long) + disp);
1312 sz->code_size += 10;
1313 } else {
1314 ainfo->reg = *gr;
1315 sz->code_size += 8;
1316 }
1317 (*gr) ++;
1318 }
1319 (*gr) ++;
1320 }
1321
1322 /*========================= End of Function ========================*/
1323
1324 /*------------------------------------------------------------------*/
1325 /* */
1326 /* Name - add_stackParm */
1327 /* */
1328 /* Function - Determine code and stack size incremements for a */
1329 /* parameter. */
1330 /* */
1331 /*------------------------------------------------------------------*/
1332
1333 static void inline
1334 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1335 {
1336 if (*gr > S390_LAST_ARG_REG) {
1337 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1338 ainfo->reg = STK_BASE;
1339 ainfo->offset = sz->stack_size;
1340 sz->stack_size += sizeof (gpointer);
1341 sz->parm_size += sizeof(gpointer);
1342 sz->offStruct += sizeof(gpointer);
1343 } else {
1344 ainfo->reg = *gr;
1345 ainfo->offset = sz->stack_size;
1346 }
1347 (*gr) ++;
1348 ainfo->offparm = sz->offset;
1349 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1350 ainfo->size = size;
1351 ainfo->regtype = RegTypeStructByAddr;
1352 ainfo->vtsize = size;
1353 sz->parm_size += size;
1354 }
1355
1356 /*========================= End of Function ========================*/
1357
1358 /*------------------------------------------------------------------*/
1359 /* */
1360 /* Name - add_float */
1361 /* */
1362 /* Function - Determine code and stack size incremements for a */
1363 /* float parameter. */
1364 /* */
1365 /*------------------------------------------------------------------*/
1366
1367 static void inline
1368 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1369 {
1370 if ((*fr) <= S390_LAST_FPARG_REG) {
1371 ainfo->regtype = RegTypeFP;
1372 ainfo->reg = *fr;
1373 sz->code_size += 4;
1374 (*fr) += 2;
1375 }
1376 else {
1377 ainfo->offset = sz->stack_size;
1378 ainfo->reg = STK_BASE;
1379 ainfo->regtype = RegTypeBase;
1380 sz->code_size += 4;
1381 sz->stack_size += ainfo->size;
1382 sz->local_size += ainfo->size;
1383 sz->offStruct += ainfo->size;
1384 }
1385 }
1386
1387 /*========================= End of Function ========================*/
1388
1389 /*------------------------------------------------------------------*/
1390 /* */
1391 /* Name - get_call_info */
1392 /* */
1393 /* Function - Determine the amount of space required for code */
1394 /* and stack. In addition determine starting points */
1395 /* for stack-based parameters, and area for struct- */
1396 /* ures being returned on the stack. */
1397 /* */
1398 /*------------------------------------------------------------------*/
1399
1400 static CallInfo *
1401 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1402 {
1403 guint i, fr, gr, size;
1404 int nParm = sig->hasthis + sig->param_count;
1405 MonoType *ret_type;
1406 guint32 simpletype, align;
1407 CallInfo *cinfo;
1408 size_data *sz;
1409 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1410
1411 if (mp)
1412 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1413 else
1414 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1415
1416 fr = 0;
1417 gr = s390_r2;
1418 nParm = 0;
1419 cinfo->struct_ret = 0;
1420 sz = &cinfo->sz;
1421 sz->offset = 0;
1422 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1423 sz->retStruct = 0;
1424 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1425 sz->code_size = 0;
1426 sz->parm_size = 0;
1427 sz->local_size = 0;
1428
1429 /*----------------------------------------------------------*/
1430 /* We determine the size of the return code/stack in case we*/
1431 /* need to reserve a register to be used to address a stack */
1432 /* area that the callee will use. */
1433 /*----------------------------------------------------------*/
1434
1435 ret_type = mono_type_get_underlying_type (sig->ret);
1436 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1437 simpletype = ret_type->type;
1438 enum_retvalue:
1439 switch (simpletype) {
1440 case MONO_TYPE_BOOLEAN:
1441 case MONO_TYPE_I1:
1442 case MONO_TYPE_U1:
1443 case MONO_TYPE_I2:
1444 case MONO_TYPE_U2:
1445 case MONO_TYPE_CHAR:
1446 case MONO_TYPE_I4:
1447 case MONO_TYPE_U4:
1448 case MONO_TYPE_I:
1449 case MONO_TYPE_U:
1450 case MONO_TYPE_CLASS:
1451 case MONO_TYPE_OBJECT:
1452 case MONO_TYPE_SZARRAY:
1453 case MONO_TYPE_ARRAY:
1454 case MONO_TYPE_PTR:
1455 case MONO_TYPE_FNPTR:
1456 case MONO_TYPE_STRING:
1457 cinfo->ret.reg = s390_r2;
1458 sz->code_size += 4;
1459 break;
1460 case MONO_TYPE_R4:
1461 case MONO_TYPE_R8:
1462 cinfo->ret.reg = s390_f0;
1463 sz->code_size += 4;
1464 break;
1465 case MONO_TYPE_I8:
1466 case MONO_TYPE_U8:
1467 cinfo->ret.reg = s390_r2;
1468 sz->code_size += 4;
1469 break;
1470 case MONO_TYPE_GENERICINST:
1471 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1472 cinfo->ret.reg = s390_r2;
1473 sz->code_size += 4;
1474 break;
1475 }
1476 /* Fall through */
1477 case MONO_TYPE_VALUETYPE: {
1478 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1479 if (klass->enumtype) {
1480 simpletype = klass->enum_basetype->type;
1481 goto enum_retvalue;
1482 }
1483 if (sig->pinvoke)
1484 size = mono_class_native_size (klass, &align);
1485 else
1486 size = mono_class_value_size (klass, &align);
1487
1488 cinfo->ret.reg = s390_r2;
1489 cinfo->struct_ret = 1;
1490 cinfo->ret.size = size;
1491 cinfo->ret.vtsize = size;
1492 gr++;
1493 break;
1494 }
1495 case MONO_TYPE_TYPEDBYREF:
1496 size = sizeof (MonoTypedRef);
1497 cinfo->ret.reg = s390_r2;
1498 cinfo->struct_ret = 1;
1499 cinfo->ret.size = size;
1500 cinfo->ret.vtsize = size;
1501 gr++;
1502 break;
1503 case MONO_TYPE_VOID:
1504 break;
1505 default:
1506 g_error ("mini-s390: cannot handle as return value 0x%x (0x%x)", sig->ret->type,simpletype);
1507 }
1508
1509 if (sig->hasthis) {
1510 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1511 cinfo->args[nParm].size = sizeof(gpointer);
1512 nParm++;
1513 }
1514
1515 /*----------------------------------------------------------*/
1516 /* We determine the size of the parameter code and stack */
1517 /* requirements by checking the types and sizes of the */
1518 /* parameters. */
1519 /*----------------------------------------------------------*/
1520
1521 for (i = 0; i < sig->param_count; ++i) {
1522 MonoType *ptype;
1523
1524 /*--------------------------------------------------*/
1525 /* Handle vararg type calls. All args are put on */
1526 /* the stack. */
1527 /*--------------------------------------------------*/
1528 if ((sig->call_convention == MONO_CALL_VARARG) &&
1529 (i == sig->sentinelpos)) {
1530 gr = S390_LAST_ARG_REG + 1;
1531 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1532 }
1533
1534 if (sig->params [i]->byref) {
1535 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1536 cinfo->args[nParm].size = sizeof(gpointer);
1537 nParm++;
1538 continue;
1539 }
1540
1541 ptype = mono_type_get_underlying_type (sig->params [i]);
1542 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1543 simpletype = ptype->type;
1544 switch (simpletype) {
1545 case MONO_TYPE_BOOLEAN:
1546 case MONO_TYPE_I1:
1547 case MONO_TYPE_U1:
1548 cinfo->args[nParm].size = sizeof(char);
1549 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1550 nParm++;
1551 break;
1552 case MONO_TYPE_I2:
1553 case MONO_TYPE_U2:
1554 case MONO_TYPE_CHAR:
1555 cinfo->args[nParm].size = sizeof(short);
1556 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1557 nParm++;
1558 break;
1559 case MONO_TYPE_I4:
1560 case MONO_TYPE_U4:
1561 cinfo->args[nParm].size = sizeof(int);
1562 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1563 nParm++;
1564 break;
1565 case MONO_TYPE_I:
1566 case MONO_TYPE_U:
1567 case MONO_TYPE_PTR:
1568 case MONO_TYPE_FNPTR:
1569 case MONO_TYPE_CLASS:
1570 case MONO_TYPE_OBJECT:
1571 case MONO_TYPE_STRING:
1572 case MONO_TYPE_SZARRAY:
1573 case MONO_TYPE_ARRAY:
1574 cinfo->args[nParm].size = sizeof(gpointer);
1575 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1576 nParm++;
1577 break;
1578 case MONO_TYPE_I8:
1579 case MONO_TYPE_U8:
1580 cinfo->args[nParm].size = sizeof(long long);
1581 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1582 nParm++;
1583 break;
1584 case MONO_TYPE_R4:
1585 cinfo->args[nParm].size = sizeof(float);
1586 add_float (&fr, sz, cinfo->args+nParm);
1587 nParm++;
1588 break;
1589 case MONO_TYPE_R8:
1590 cinfo->args[nParm].size = sizeof(double);
1591 add_float (&fr, sz, cinfo->args+nParm);
1592 nParm++;
1593 break;
1594 case MONO_TYPE_GENERICINST:
1595 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1596 cinfo->args[nParm].size = sizeof(gpointer);
1597 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1598 nParm++;
1599 break;
1600 }
1601 /* Fall through */
1602 case MONO_TYPE_VALUETYPE: {
1603 MonoMarshalType *info;
1604 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1605 if (sig->pinvoke)
1606 size = mono_class_native_size (klass, &align);
1607 else
1608 size = mono_class_value_size (klass, &align);
1609
1610 info = mono_marshal_load_type_info (klass);
1611
1612 if ((info->native_size == sizeof(float)) &&
1613 (info->num_fields == 1) &&
1614 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1615 cinfo->args[nParm].size = sizeof(float);
1616 add_float(&fr, sz, cinfo->args+nParm);
1617 nParm ++;
1618 break;
1619 }
1620
1621 if ((info->native_size == sizeof(double)) &&
1622 (info->num_fields == 1) &&
1623 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1624 cinfo->args[nParm].size = sizeof(double);
1625 add_float(&fr, sz, cinfo->args+nParm);
1626 nParm ++;
1627 break;
1628 }
1629
1630 cinfo->args[nParm].vtsize = 0;
1631 cinfo->args[nParm].size = 0;
1632
1633 switch (size) {
1634 /*----------------------------------*/
1635 /* On S/390, structures of size 1, */
1636 /* 2, 4, and 8 bytes are passed in */
1637 /* (a) register(s). */
1638 /*----------------------------------*/
1639 case 0:
1640 case 1:
1641 case 2:
1642 case 4:
1643 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1644 cinfo->args[nParm].size = size;
1645 cinfo->args[nParm].regtype = RegTypeStructByVal;
1646 nParm++;
1647 sz->local_size += sizeof(long);
1648 break;
1649 case 8:
1650 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1651 cinfo->args[nParm].size = sizeof(long long);
1652 cinfo->args[nParm].regtype = RegTypeStructByVal;
1653 nParm++;
1654 sz->local_size += sizeof(long long);
1655 break;
1656 default:
1657 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1658 nParm++;
1659 }
1660 }
1661 break;
1662 case MONO_TYPE_TYPEDBYREF: {
1663 int size = sizeof (MonoTypedRef);
1664
1665 cinfo->args[nParm].vtsize = 0;
1666 cinfo->args[nParm].size = 0;
1667
1668 switch (size) {
1669 /*----------------------------------*/
1670 /* On S/390, structures of size 1, */
1671 /* 2, 4, and 8 bytes are passed in */
1672 /* (a) register(s). */
1673 /*----------------------------------*/
1674 case 0:
1675 case 1:
1676 case 2:
1677 case 4:
1678 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1679 cinfo->args[nParm].size = size;
1680 cinfo->args[nParm].regtype = RegTypeStructByVal;
1681 nParm++;
1682 sz->local_size += sizeof(long);
1683 break;
1684 case 8:
1685 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1686 cinfo->args[nParm].size = sizeof(long long);
1687 cinfo->args[nParm].regtype = RegTypeStructByVal;
1688 nParm++;
1689 sz->local_size += sizeof(long long);
1690 break;
1691 default:
1692 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1693 nParm++;
1694 }
1695 }
1696 break;
1697 default:
1698 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1699 }
1700 }
1701
1702 /*----------------------------------------------------------*/
1703 /* If we are passing a structure back then if it won't be */
1704 /* in a register(s) then we make room at the end of the */
1705 /* parameters that may have been placed on the stack */
1706 /*----------------------------------------------------------*/
1707 if (cinfo->struct_ret) {
1708 cinfo->ret.offset = sz->stack_size;
1709 switch (cinfo->ret.size) {
1710 case 0:
1711 case 1:
1712 case 2:
1713 case 4:
1714 case 8:
1715 break;
1716 default:
1717 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1718 }
1719 }
1720
1721 /*----------------------------------------------------------*/
1722 /* Handle the case where there are no implicit arguments */
1723 /*----------------------------------------------------------*/
1724 if ((sig->call_convention == MONO_CALL_VARARG) &&
1725 (sig->param_count == sig->sentinelpos)) {
1726 gr = S390_LAST_ARG_REG + 1;
1727 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1728 }
1729
1730 cinfo->lastgr = gr;
1731 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1732 sz->offset;
1733 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1734
1735 return (cinfo);
1736 }
1737
1738 /*========================= End of Function ========================*/
1739
1740 /*------------------------------------------------------------------*/
1741 /* */
1742 /* Name - mono_arch_allocate_vars */
1743 /* */
1744 /* Function - Set var information according to the calling */
1745 /* convention for S/390. The local var stuff should */
1746 /* most likely be split in another method. */
1747 /* */
1748 /* Parameter - @m - Compile unit. */
1749 /* */
1750 /*------------------------------------------------------------------*/
1751
1752 void
1753 mono_arch_allocate_vars (MonoCompile *cfg)
1754 {
1755 MonoMethodSignature *sig;
1756 MonoMethodHeader *header;
1757 MonoInst *inst;
1758 CallInfo *cinfo;
1759 int iParm, iVar, offset, size, align, curinst;
1760 int frame_reg = STK_BASE;
1761 int sArg, eArg;
1762
1763 header = mono_method_get_header (cfg->method);
1764
1765 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1766
1767 sig = mono_method_signature (cfg->method);
1768
1769 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1770
1771 /*---------------------------------------------------------*/
1772 /* We use the frame register also for any method that has */
1773 /* filter clauses. This way, when the handlers are called, */
1774 /* the code will reference local variables using the frame */
1775 /* reg instead of the stack pointer: if we had to restore */
1776 /* the stack pointer, we'd corrupt the method frames that */
1777 /* are already on the stack (since filters get called */
1778 /* before stack unwinding happens) when the filter code */
1779 /* would call any method. */
1780 /*---------------------------------------------------------*/
1781 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1782 frame_reg = s390_r11;
1783
1784 cfg->frame_reg = frame_reg;
1785
1786 cfg->arch.bkchain_reg = -1;
1787
1788 if (frame_reg != STK_BASE)
1789 cfg->used_int_regs |= 1 << frame_reg;
1790
1791 sig = mono_method_signature (cfg->method);
1792
1793 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1794
1795 if (cinfo->struct_ret) {
1796 if (!cfg->new_ir) {
1797 cfg->vret_addr->opcode = OP_REGVAR;
1798 cfg->vret_addr->inst_c0 = s390_r2;
1799 }
1800 } else {
1801 switch (mono_type_get_underlying_type (sig->ret)->type) {
1802 case MONO_TYPE_VOID:
1803 break;
1804 default:
1805 cfg->ret->opcode = OP_REGVAR;
1806 cfg->ret->dreg = s390_r2;
1807 break;
1808 }
1809 }
1810
1811 /*--------------------------------------------------------------*/
1812 /* local vars are at a positive offset from the stack pointer */
1813 /* also note that if the function uses alloca, we use s390_r11 */
1814 /* to point at the local variables. */
1815 /* add parameter area size for called functions */
1816 /*--------------------------------------------------------------*/
1817 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1818 cfg->sig_cookie = 0;
1819
1820 if (cinfo->struct_ret) {
1821 inst = cfg->vret_addr;
1822 offset = S390_ALIGN(offset, sizeof(gpointer));
1823 inst->inst_offset = offset;
1824 inst->opcode = OP_REGOFFSET;
1825 inst->inst_basereg = frame_reg;
1826 offset += sizeof(gpointer);
1827 if (!cfg->new_ir && (sig->call_convention == MONO_CALL_VARARG) &&
1828 (!retFitsInReg (cinfo->ret.size)))
1829 cfg->sig_cookie += cinfo->ret.size;
1830 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1831 printf ("vret_addr =");
1832 mono_print_ins (cfg->vret_addr);
1833 }
1834 }
1835
1836 if (sig->hasthis) {
1837 inst = cfg->args [0];
1838 if (inst->opcode != OP_REGVAR) {
1839 inst->opcode = OP_REGOFFSET;
1840 inst->inst_basereg = frame_reg;
1841 offset = S390_ALIGN(offset, sizeof(gpointer));
1842 inst->inst_offset = offset;
1843 offset += sizeof (gpointer);
1844 }
1845 curinst = sArg = 1;
1846 } else {
1847 curinst = sArg = 0;
1848 }
1849
1850 eArg = sig->param_count + sArg;
1851
1852 if (sig->call_convention == MONO_CALL_VARARG)
1853 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1854
1855 for (iParm = sArg; iParm < eArg; ++iParm) {
1856 inst = cfg->args [curinst];
1857 if (inst->opcode != OP_REGVAR) {
1858 switch (cinfo->args[iParm].regtype) {
1859 case RegTypeStructByAddr :
1860 if (cfg->new_ir) {
1861 MonoInst *indir;
1862
1863 size = sizeof (gpointer);
1864
1865 if (cinfo->args [iParm].reg == STK_BASE) {
1866 cfg->arch.bkchain_reg = s390_r12;
1867 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1868
1869 inst->opcode = OP_REGOFFSET;
1870 inst->inst_basereg = cfg->arch.bkchain_reg;
1871 inst->inst_offset = cinfo->args [iParm].offset;
1872 } else {
1873 inst->opcode = OP_REGOFFSET;
1874 inst->inst_basereg = frame_reg;
1875 inst->inst_offset = S390_ALIGN(offset, sizeof (gpointer));
1876 }
1877
1878 /* Add a level of indirection */
1879 MONO_INST_NEW (cfg, indir, 0);
1880 *indir = *inst;
1881 inst->opcode = OP_VTARG_ADDR;
1882 inst->inst_left = indir;
1883 } else {
1884 if (cinfo->args[iParm].reg == STK_BASE) {
1885 inst->opcode = OP_S390_LOADARG;
1886 inst->inst_basereg = frame_reg;
1887 size = abs(cinfo->args[iParm].vtsize);
1888 offset = S390_ALIGN(offset, sizeof(long));
1889 inst->inst_offset = offset;
1890 inst->backend.arg_info = cinfo->args[iParm].offset;
1891 } else {
1892 inst->opcode = OP_S390_ARGREG;
1893 inst->inst_basereg = frame_reg;
1894 size = sizeof(gpointer);
1895 offset = S390_ALIGN(offset, size);
1896 inst->inst_offset = offset;
1897 inst->backend.arg_info = cinfo->args[iParm].offset;
1898 }
1899 }
1900 break;
1901 case RegTypeStructByVal :
1902 if (cfg->new_ir) {
1903 size = cinfo->args[iParm].size;
1904 offset = S390_ALIGN(offset, size);
1905 inst->opcode = OP_REGOFFSET;
1906 inst->inst_basereg = frame_reg;
1907 inst->inst_offset = S390_ALIGN (offset, size);
1908 } else {
1909 inst->opcode = OP_S390_ARGPTR;
1910 inst->inst_basereg = frame_reg;
1911 size = cinfo->args[iParm].size;
1912 offset = S390_ALIGN(offset, size);
1913 inst->inst_offset = offset;
1914 inst->backend.arg_info = cinfo->args[iParm].offset;
1915 }
1916 break;
1917 default :
1918 if (cfg->new_ir) {
1919 if (cinfo->args [iParm].reg == STK_BASE) {
1920 /*
1921 * These arguments are in the previous frame, so we can't
1922 * compute their offset from the current frame pointer right
1923 * now, since cfg->stack_offset is not yet known, so dedicate a
1924 * register holding the previous frame pointer.
1925 */
1926 cfg->arch.bkchain_reg = s390_r12;
1927 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1928
1929 inst->opcode = OP_REGOFFSET;
1930 inst->inst_basereg = cfg->arch.bkchain_reg;
1931 size = (cinfo->args[iParm].size < 4
1932 ? 4 - cinfo->args[iParm].size
1933 : 0);
1934 inst->inst_offset = cinfo->args [iParm].offset + size;
1935 size = sizeof (long);
1936 } else {
1937 inst->opcode = OP_REGOFFSET;
1938 inst->inst_basereg = frame_reg;
1939 size = (cinfo->args[iParm].size < 8
1940 ? sizeof(long)
1941 : sizeof(long long));
1942 offset = S390_ALIGN(offset, size);
1943 inst->inst_offset = offset;
1944 }
1945 } else {
1946 if (cinfo->args[iParm].reg != STK_BASE) {
1947 inst->opcode = OP_REGOFFSET;
1948 inst->inst_basereg = frame_reg;
1949 size = (cinfo->args[iParm].size < 8
1950 ? sizeof(long)
1951 : sizeof(long long));
1952 offset = S390_ALIGN(offset, size);
1953 inst->inst_offset = offset;
1954 } else {
1955 inst->opcode = OP_S390_STKARG;
1956 inst->inst_basereg = frame_reg;
1957 size = (cinfo->args[iParm].size < 4
1958 ? 4 - cinfo->args[iParm].size
1959 : 0);
1960 inst->inst_offset = cinfo->args[iParm].offset +
1961 size;
1962 inst->backend.arg_info = 0;
1963 size = sizeof(long);
1964 }
1965 }
1966 }
1967 if ((sig->call_convention == MONO_CALL_VARARG) &&
1968 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1969 (iParm < sig->sentinelpos))
1970 cfg->sig_cookie += size;
1971
1972 offset += size;
1973 }
1974 curinst++;
1975 }
1976
1977 curinst = cfg->locals_start;
1978 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1979 inst = cfg->varinfo [iVar];
1980 if ((inst->flags & MONO_INST_IS_DEAD) ||
1981 (inst->opcode == OP_REGVAR))
1982 continue;
1983
1984 /*--------------------------------------------------*/
1985 /* inst->backend.is_pinvoke indicates native sized value types, */
1986 /* this is used by the pinvoke wrappers when they */
1987 /* call functions returning structure */
1988 /*--------------------------------------------------*/
1989 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1990 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1991 else
1992 size = mono_type_size (inst->inst_vtype, &align);
1993
1994 offset = S390_ALIGN(offset, align);
1995 inst->inst_offset = offset;
1996 inst->opcode = OP_REGOFFSET;
1997 inst->inst_basereg = frame_reg;
1998 offset += size;
1999 DEBUG (g_print("allocating local %d to %ld\n", iVar, inst->inst_offset));
2000 }
2001
2002 /*------------------------------------------------------*/
2003 /* Allow space for the trace method stack area if needed*/
2004 /*------------------------------------------------------*/
2005 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method)) {
2006 offset += S390_TRACE_STACK_SIZE;
2007 }
2008
2009 /*------------------------------------------------------*/
2010 /* Reserve space to save LMF and caller saved registers */
2011 /*------------------------------------------------------*/
2012 if (cfg->method->save_lmf)
2013 offset += sizeof (MonoLMF);
2014
2015 /*------------------------------------------------------*/
2016 /* align the offset */
2017 /*------------------------------------------------------*/
2018 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
2019
2020 /* Fix up offsets for arguments whose value is in the parent frame */
2021 if (cfg->new_ir) {
2022 for (iParm = sArg; iParm < eArg; ++iParm) {
2023 inst = cfg->args [iParm];
2024
2025 if (inst->opcode == OP_S390_STKARG) {
2026 inst->opcode = OP_REGOFFSET;
2027 inst->inst_offset += cfg->stack_offset;
2028 }
2029 }
2030 }
2031 }
2032
2033 /*========================= End of Function ========================*/
2034
2035 /*------------------------------------------------------------------*/
2036 /* */
2037 /* Name - mono_arch_create_vars */
2038 /* */
2039 /*------------------------------------------------------------------*/
2040
2041 void
2042 mono_arch_create_vars (MonoCompile *cfg)
2043 {
2044 MonoMethodSignature *sig;
2045 CallInfo *cinfo;
2046
2047 sig = mono_method_signature (cfg->method);
2048
2049 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2050
2051 if (cinfo->struct_ret) {
2052 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
2053 if (G_UNLIKELY (cfg->verbose_level > 1)) {
2054 printf ("vret_addr = ");
2055 mono_print_ins (cfg->vret_addr);
2056 }
2057 }
2058 }
2059
2060 /*========================= End of Function ========================*/
2061
2062 /*------------------------------------------------------------------*/
2063 /* */
2064 /* Name - mono_arch_call_opcode */
2065 /* */
2066 /* Function - Take the arguments and generate the arch-specific */
2067 /* instructions to properly call the function. This */
2068 /* includes pushing, moving argments to the correct */
2069 /* etc. */
2070 /* */
2071 /*------------------------------------------------------------------*/
2072
2073 MonoCallInst*
2074 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
2075 MonoCallInst *call, int is_virtual)
2076 {
2077 MonoInst *in;
2078 MonoCallArgParm *arg;
2079 MonoMethodSignature *sig;
2080 int i, n, lParamArea;
2081 CallInfo *cinfo;
2082 ArgInfo *ainfo = NULL;
2083 int stackSize;
2084
2085 sig = call->signature;
2086 n = sig->param_count + sig->hasthis;
2087 DEBUG (g_print ("Call requires: %d parameters\n",n));
2088
2089 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2090
2091 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2092 call->stack_usage = MAX(stackSize, call->stack_usage);
2093 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2094 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2095 cfg->flags |= MONO_CFG_HAS_CALLS;
2096
2097 if (cinfo->struct_ret)
2098 call->used_iregs |= 1 << cinfo->ret.reg;
2099
2100 for (i = 0; i < n; ++i) {
2101 ainfo = cinfo->args + i;
2102
2103 if ((sig->call_convention == MONO_CALL_VARARG) &&
2104 (i == sig->sentinelpos)) {
2105 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
2106 }
2107
2108 if (is_virtual && i == 0) {
2109 /* the argument will be attached to the call instrucion */
2110 in = call->args [i];
2111 call->used_iregs |= 1 << ainfo->reg;
2112 } else {
2113 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG);
2114 in = call->args [i];
2115 arg->ins.cil_code = in->cil_code;
2116 arg->ins.inst_left = in;
2117 arg->ins.type = in->type;
2118 /* prepend, we'll need to reverse them later */
2119 arg->ins.next = call->out_args;
2120 call->out_args = (MonoInst *) arg;
2121 arg->ins.inst_right = (MonoInst *) call;
2122 if (ainfo->regtype == RegTypeGeneral) {
2123 arg->ins.backend.reg3 = ainfo->reg;
2124 call->used_iregs |= 1 << ainfo->reg;
2125 if (arg->ins.type == STACK_I8)
2126 call->used_iregs |= 1 << (ainfo->reg + 1);
2127 } else if (ainfo->regtype == RegTypeStructByAddr) {
2128 call->used_iregs |= 1 << ainfo->reg;
2129 arg->ins.sreg1 = ainfo->reg;
2130 arg->ins.opcode = OP_OUTARG_VT;
2131 arg->size = -ainfo->vtsize;
2132 arg->offset = ainfo->offset;
2133 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2134 } else if (ainfo->regtype == RegTypeStructByVal) {
2135 if (ainfo->reg != STK_BASE) {
2136 switch (ainfo->size) {
2137 case 0:
2138 case 1:
2139 case 2:
2140 case 4:
2141 call->used_iregs |= 1 << ainfo->reg;
2142 break;
2143 case 8:
2144 call->used_iregs |= 1 << ainfo->reg;
2145 call->used_iregs |= 1 << (ainfo->reg+1);
2146 break;
2147 default:
2148 call->used_iregs |= 1 << ainfo->reg;
2149 }
2150 }
2151 arg->ins.sreg1 = ainfo->reg;
2152 arg->ins.opcode = OP_OUTARG_VT;
2153 arg->size = ainfo->size;
2154 arg->offset = ainfo->offset;
2155 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2156 } else if (ainfo->regtype == RegTypeBase) {
2157 arg->ins.opcode = OP_OUTARG_MEMBASE;
2158 arg->ins.sreg1 = ainfo->reg;
2159 arg->size = ainfo->size;
2160 arg->offset = ainfo->offset;
2161 call->used_iregs |= 1 << ainfo->reg;
2162 } else if (ainfo->regtype == RegTypeFP) {
2163 arg->ins.backend.reg3 = ainfo->reg;
2164 call->used_fregs |= 1 << ainfo->reg;
2165 if (ainfo->size == 4)
2166 arg->ins.opcode = OP_OUTARG_R4;
2167 else
2168 arg->ins.opcode = OP_OUTARG_R8;
2169 } else {
2170 g_assert_not_reached ();
2171 }
2172 }
2173 }
2174
2175 /*
2176 * Handle the case where there are no implicit arguments
2177 */
2178 if ((sig->call_convention == MONO_CALL_VARARG) &&
2179 (i == sig->sentinelpos)) {
2180 emit_sig_cookie (cfg, call, cinfo, ainfo->size);
2181 }
2182
2183 /*
2184 * Reverse the call->out_args list.
2185 */
2186 {
2187 MonoInst *prev = NULL, *list = call->out_args, *next;
2188 while (list) {
2189 next = list->next;
2190 list->next = prev;
2191 prev = list;
2192 list = next;
2193 }
2194 call->out_args = prev;
2195 }
2196
2197 return call;
2198 }
2199
2200 /*========================= End of Function ========================*/
2201
2202 static void
2203 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
2204 {
2205 MonoInst *ins;
2206
2207 switch (storage) {
2208 case RegTypeGeneral:
2209 MONO_INST_NEW (cfg, ins, OP_MOVE);
2210 ins->dreg = mono_alloc_ireg (cfg);
2211 ins->sreg1 = tree->dreg;
2212 MONO_ADD_INS (cfg->cbb, ins);
2213 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
2214 break;
2215 case RegTypeFP:
2216 MONO_INST_NEW (cfg, ins, OP_FMOVE);
2217 ins->dreg = mono_alloc_freg (cfg);
2218 ins->sreg1 = tree->dreg;
2219 MONO_ADD_INS (cfg->cbb, ins);
2220 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2221 break;
2222 case RegTypeFPR4:
2223 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
2224 ins->dreg = mono_alloc_freg (cfg);
2225 ins->sreg1 = tree->dreg;
2226 MONO_ADD_INS (cfg->cbb, ins);
2227 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2228 break;
2229 default:
2230 g_assert_not_reached ();
2231 }
2232 }
2233
2234 static void
2235 emit_sig_cookie2 (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2236 {
2237 MonoMethodSignature *tmpSig;
2238 MonoInst *sig_arg;
2239
2240 cfg->disable_aot = TRUE;
2241
2242 /*----------------------------------------------------------*/
2243 /* mono_ArgIterator_Setup assumes the signature cookie is */
2244 /* passed first and all the arguments which were before it */
2245 /* passed on the stack after the signature. So compensate */
2246 /* by passing a different signature. */
2247 /*----------------------------------------------------------*/
2248 tmpSig = mono_metadata_signature_dup (call->signature);
2249 tmpSig->param_count -= call->signature->sentinelpos;
2250 tmpSig->sentinelpos = 0;
2251 if (tmpSig->param_count > 0)
2252 memcpy (tmpSig->params,
2253 call->signature->params + call->signature->sentinelpos,
2254 tmpSig->param_count * sizeof(MonoType *));
2255
2256 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2257 sig_arg->dreg = mono_alloc_ireg (cfg);
2258 sig_arg->inst_p0 = tmpSig;
2259 MONO_ADD_INS (cfg->cbb, sig_arg);
2260
2261 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2262 cinfo->sigCookie.offset, sig_arg->dreg);
2263 }
2264
2265 /*------------------------------------------------------------------*/
2266 /* */
2267 /* Name - mono_arch_emit_call */
2268 /* */
2269 /*------------------------------------------------------------------*/
2270
2271 void
2272 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2273 {
2274 MonoInst *in;
2275 MonoMethodSignature *sig;
2276 MonoInst *ins;
2277 int i, n, lParamArea;
2278 CallInfo *cinfo;
2279 ArgInfo *ainfo = NULL;
2280 int stackSize;
2281
2282 sig = call->signature;
2283 n = sig->param_count + sig->hasthis;
2284 DEBUG (g_print ("Call requires: %d parameters\n",n));
2285
2286 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2287
2288 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2289 call->stack_usage = MAX(stackSize, call->stack_usage);
2290 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2291 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2292 cfg->flags |= MONO_CFG_HAS_CALLS;
2293
2294 if (cinfo->struct_ret) {
2295 MONO_INST_NEW (cfg, ins, OP_MOVE);
2296 ins->sreg1 = call->vret_var->dreg;
2297 ins->dreg = mono_alloc_preg (cfg);
2298 MONO_ADD_INS (cfg->cbb, ins);
2299 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2300 }
2301
2302 for (i = 0; i < n; ++i) {
2303 ainfo = cinfo->args + i;
2304 MonoType *t;
2305
2306 if (i >= sig->hasthis)
2307 t = sig->params [i - sig->hasthis];
2308 else
2309 t = &mono_defaults.int_class->byval_arg;
2310 t = mono_type_get_underlying_type (t);
2311
2312 in = call->args [i];
2313
2314 if ((sig->call_convention == MONO_CALL_VARARG) &&
2315 (i == sig->sentinelpos)) {
2316 emit_sig_cookie2 (cfg, call, cinfo);
2317 }
2318
2319 switch (ainfo->regtype) {
2320 case RegTypeGeneral:
2321 if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2322 MONO_INST_NEW (cfg, ins, OP_MOVE);
2323 ins->dreg = mono_alloc_ireg (cfg);
2324 ins->sreg1 = in->dreg + 2;
2325 MONO_ADD_INS (cfg->cbb, ins);
2326 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
2327 MONO_INST_NEW (cfg, ins, OP_MOVE);
2328 ins->dreg = mono_alloc_ireg (cfg);
2329 ins->sreg1 = in->dreg + 1;
2330 MONO_ADD_INS (cfg->cbb, ins);
2331 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg + 1, FALSE);
2332 } else {
2333 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2334 }
2335 break;
2336 case RegTypeFP:
2337 if (MONO_TYPE_ISSTRUCT (t)) {
2338 /* Valuetype passed in one fp register */
2339 ainfo->regtype = RegTypeStructByValInFP;
2340 /* Fall through */
2341 } else {
2342 if (ainfo->size == 4)
2343 ainfo->regtype = RegTypeFPR4;
2344 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2345 break;
2346 }
2347 case RegTypeStructByVal:
2348 case RegTypeStructByAddr: {
2349 guint32 align;
2350 guint32 size;
2351
2352 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2353 size = sizeof (MonoTypedRef);
2354 align = sizeof (gpointer);
2355 }
2356 else
2357 if (sig->pinvoke)
2358 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2359 else {
2360 /*
2361 * Other backends use mono_type_stack_size (), but that
2362 * aligns the size to 8, which is larger than the size of
2363 * the source, leading to reads of invalid memory if the
2364 * source is at the end of address space.
2365 */
2366 size = mono_class_value_size (in->klass, &align);
2367 }
2368
2369 g_assert (in->klass);
2370
2371 ainfo->offparm += cinfo->sz.offStruct;
2372
2373 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2374 ins->sreg1 = in->dreg;
2375 ins->klass = in->klass;
2376 ins->backend.size = ainfo->size;
2377 ins->inst_p0 = call;
2378 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2379 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2380
2381 MONO_ADD_INS (cfg->cbb, ins);
2382
2383 if (ainfo->regtype == RegTypeStructByAddr) {
2384 /*
2385 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2386 * use the normal OUTARG opcodes to pass the address of the location to
2387 * the callee.
2388 */
2389 int treg = mono_alloc_preg (cfg);
2390 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2391 STK_BASE, ainfo->offparm);
2392 if (ainfo->reg == STK_BASE) {
2393 /* The address is passed on the stack */
2394 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2395 ins->inst_destbasereg = STK_BASE;
2396 ins->inst_offset = ainfo->offset;
2397 ins->sreg1 = treg;
2398 MONO_ADD_INS (cfg->cbb, ins);
2399 } else {
2400 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2401 }
2402 }
2403 break;
2404 }
2405 case RegTypeBase:
2406 if (!t->byref && t->type == MONO_TYPE_R4) {
2407 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2408 STK_BASE, ainfo->offset,
2409 in->dreg);
2410 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2411 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2412 STK_BASE, ainfo->offset,
2413 in->dreg);
2414 } else if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2415 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2416 ins->inst_destbasereg = STK_BASE;
2417 ins->inst_offset = ainfo->offset + MINI_LS_WORD_OFFSET;
2418 ins->sreg1 = in->dreg + 1;
2419 MONO_ADD_INS (cfg->cbb, ins);
2420
2421 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2422 ins->inst_destbasereg = STK_BASE;
2423 ins->inst_offset = ainfo->offset + MINI_MS_WORD_OFFSET;
2424 ins->sreg1 = in->dreg + 2;
2425 MONO_ADD_INS (cfg->cbb, ins);
2426 } else {
2427 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2428 ins->inst_destbasereg = STK_BASE;
2429 ins->inst_offset = ainfo->offset;
2430 ins->sreg1 = in->dreg;
2431 MONO_ADD_INS (cfg->cbb, ins);
2432 }
2433 break;
2434 default:
2435 g_assert_not_reached ();
2436 break;
2437 }
2438 }
2439
2440 /*
2441 * Handle the case where there are no implicit arguments
2442 */
2443 if ((sig->call_convention == MONO_CALL_VARARG) &&
2444 (i == sig->sentinelpos)) {
2445 emit_sig_cookie2 (cfg, call, cinfo);
2446 }
2447 }
2448
2449 /*========================= End of Function ========================*/
2450
2451 /*------------------------------------------------------------------*/
2452 /* */
2453 /* Name - mono_arch_emit_outarg_vt */
2454 /* */
2455 /*------------------------------------------------------------------*/
2456
2457 void
2458 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2459 {
2460 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2461 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2462 int size = ins->backend.size;
2463
2464 if (ainfo->regtype == RegTypeStructByVal) {
2465 /*
2466 arg->ins.sreg1 = ainfo->reg;
2467 arg->ins.opcode = OP_OUTARG_VT;
2468 arg->size = ainfo->size;
2469 arg->offset = ainfo->offset;
2470 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2471 */
2472 if (ainfo->reg != STK_BASE) {
2473 MONO_OUTPUT_VTR2 (cfg, size, ainfo->reg, src->dreg, 0);
2474 } else {
2475 MONO_OUTPUT_VTS2 (cfg, size, ainfo->reg, ainfo->offset,
2476 src->dreg, 0);
2477 }
2478 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2479 int dreg = mono_alloc_freg (cfg);
2480
2481 if (ainfo->size == 4) {
2482 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2483 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2484 } else {
2485 g_assert (ainfo->size == 8);
2486
2487 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2488 }
2489
2490 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2491 } else {
2492 MONO_EMIT_NEW_MOVE2 (cfg, STK_BASE, ainfo->offparm,
2493 src->dreg, 0, size);
2494 }
2495 }
2496
2497 /*------------------------------------------------------------------*/
2498 /* */
2499 /* Name - mono_arch_emit_setret */
2500 /* */
2501 /*------------------------------------------------------------------*/
2502
2503 void
2504 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2505 {
2506 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2507
2508 if (!ret->byref) {
2509 if (ret->type == MONO_TYPE_R4) {
2510 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2511 return;
2512 } else if (ret->type == MONO_TYPE_R8) {
2513 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2514 return;
2515 } else if (ret->type == MONO_TYPE_I8 || ret->type == MONO_TYPE_U8) {
2516 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r3, val->dreg + 1);
2517 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r2, val->dreg + 2);
2518 return;
2519 }
2520 }
2521
2522 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2523 }
2524
2525 /*========================= End of Function ========================*/
2526
2527 /*------------------------------------------------------------------*/
2528 /* */
2529 /* Name - emit_sig_cookie. */
2530 /* */
2531 /* Function - For variable length parameter lists construct a */
2532 /* signature cookie and emit it. */
2533 /* */
2534 /*------------------------------------------------------------------*/
2535
2536 static void
2537 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call,
2538 CallInfo *cinfo, int argSize)
2539 {
2540 MonoCallArgParm *arg;
2541 MonoMethodSignature *tmpSig;
2542 MonoInst *sigArg;
2543
2544 cfg->disable_aot = TRUE;
2545
2546 /*----------------------------------------------------------*/
2547 /* mono_ArgIterator_Setup assumes the signature cookie is */
2548 /* passed first and all the arguments which were before it */
2549 /* passed on the stack after the signature. So compensate */
2550 /* by passing a different signature. */
2551 /*----------------------------------------------------------*/
2552 tmpSig = mono_metadata_signature_dup (call->signature);
2553 tmpSig->param_count -= call->signature->sentinelpos;
2554 tmpSig->sentinelpos = 0;
2555 if (tmpSig->param_count > 0)
2556 memcpy (tmpSig->params,
2557 call->signature->params + call->signature->sentinelpos,
2558 tmpSig->param_count * sizeof(MonoType *));
2559
2560 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
2561 sigArg->inst_p0 = tmpSig;
2562
2563 MONO_INST_NEW_CALL_ARG (cfg, arg, OP_OUTARG_MEMBASE);
2564 arg->ins.inst_left = sigArg;
2565 arg->ins.inst_right = (MonoInst *) call;
2566 arg->size = argSize;
2567 arg->offset = cinfo->sigCookie.offset;
2568 arg->ins.next = call->out_args;
2569 call->out_args = (MonoInst *) arg;
2570 }
2571
2572 /*========================= End of Function ========================*/
2573
2574 /*------------------------------------------------------------------*/
2575 /* */
2576 /* Name - mono_arch_instrument_mem_needs */
2577 /* */
2578 /* Function - Allow tracing to work with this interface (with */
2579 /* an optional argument). */
2580 /* */
2581 /*------------------------------------------------------------------*/
2582
2583 void
2584 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2585 {
2586 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2587 *stack = 0;
2588 /* split prolog-epilog requirements? */
2589 *code = 50; /* max bytes needed: check this number */
2590 }
2591
2592 /*========================= End of Function ========================*/
2593
2594 /*------------------------------------------------------------------*/
2595 /* */
2596 /* Name - mono_arch_instrument_prolog */
2597 /* */
2598 /* Function - Create an "instrumented" prolog. */
2599 /* */
2600 /*------------------------------------------------------------------*/
2601
2602 void*
2603 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2604 gboolean enable_arguments)
2605 {
2606 guchar *code = p;
2607 int parmOffset,
2608 fpOffset,
2609 baseReg;
2610
2611 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2612 if (cfg->method->save_lmf)
2613 parmOffset -= sizeof(MonoLMF);
2614 fpOffset = parmOffset + (5*sizeof(gint32));
2615 if (fpOffset > 4096) {
2616 s390_lr (code, s390_r12, STK_BASE);
2617 baseReg = s390_r12;
2618 while (fpOffset > 4096) {
2619 s390_ahi (code, baseReg, 4096);
2620 fpOffset -= 4096;
2621 parmOffset -= 4096;
2622 }
2623 } else {
2624 baseReg = STK_BASE;
2625 }
2626
2627 s390_stm (code, s390_r2, s390_r6, baseReg, parmOffset);
2628 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2629 s390_std (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2630 s390_std (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2631 s390_basr (code, s390_r13, 0);
2632 s390_j (code, 6);
2633 s390_word (code, cfg->method);
2634 s390_word (code, func);
2635 s390_l (code, s390_r2, 0, s390_r13, 4);
2636 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2637 s390_lr (code, s390_r4, STK_BASE);
2638 s390_ahi (code, s390_r4, cfg->stack_usage);
2639 s390_l (code, s390_r1, 0, s390_r13, 8);
2640 s390_basr (code, s390_r14, s390_r1);
2641 s390_ld (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2642 s390_ld (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2643 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2644 s390_lm (code, s390_r2, s390_r6, baseReg, parmOffset);
2645
2646 return code;
2647 }
2648
2649 /*========================= End of Function ========================*/
2650
2651 /*------------------------------------------------------------------*/
2652 /* */
2653 /* Name - mono_arch_instrument_epilog */
2654 /* */
2655 /* Function - Create an epilog that will handle the returned */
2656 /* values used in instrumentation. */
2657 /* */
2658 /*------------------------------------------------------------------*/
2659
2660 void*
2661 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2662 {
2663 guchar *code = p;
2664 int save_mode = SAVE_NONE,
2665 saveOffset;
2666 MonoMethod *method = cfg->method;
2667 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2668
2669 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2670 if (method->save_lmf)
2671 saveOffset -= sizeof(MonoLMF);
2672
2673 handle_enum:
2674 switch (rtype) {
2675 case MONO_TYPE_VOID:
2676 /* special case string .ctor icall */
2677 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2678 save_mode = SAVE_ONE;
2679 else
2680 save_mode = SAVE_NONE;
2681 break;
2682 case MONO_TYPE_I8:
2683 case MONO_TYPE_U8:
2684 save_mode = SAVE_TWO;
2685 break;
2686 case MONO_TYPE_R4:
2687 save_mode = SAVE_R4;
2688 break;
2689 case MONO_TYPE_R8:
2690 save_mode = SAVE_R8;
2691 break;
2692 case MONO_TYPE_VALUETYPE:
2693 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2694 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
2695 goto handle_enum;
2696 }
2697 save_mode = SAVE_STRUCT;
2698 break;
2699 default:
2700 save_mode = SAVE_ONE;
2701 break;
2702 }
2703
2704 switch (save_mode) {
2705 case SAVE_TWO:
2706 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2707 if (enable_arguments) {
2708 s390_lr (code, s390_r4, s390_r3);
2709 s390_lr (code, s390_r3, s390_r2);
2710 }
2711 break;
2712 case SAVE_ONE:
2713 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2714 if (enable_arguments) {
2715 s390_lr (code, s390_r3, s390_r2);
2716 }
2717 break;
2718 case SAVE_R4:
2719 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2720 if (enable_arguments) {
2721 s390_ldebr (code, s390_f0, s390_f0);
2722 }
2723 break;
2724 case SAVE_R8:
2725 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2726 break;
2727 case SAVE_STRUCT:
2728 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2729 if (enable_arguments) {
2730 s390_l (code, s390_r3, 0, cfg->frame_reg,
2731 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2732 }
2733 break;
2734 case SAVE_NONE:
2735 default:
2736 break;
2737 }
2738
2739 s390_basr (code, s390_r13, 0);
2740 s390_j (code, 6);
2741 s390_word (code, cfg->method);
2742 s390_word (code, func);
2743 s390_l (code, s390_r2, 0, s390_r13, 4);
2744 s390_l (code, s390_r1, 0, s390_r13, 8);
2745 s390_basr (code, s390_r14, s390_r1);
2746
2747 switch (save_mode) {
2748 case SAVE_TWO:
2749 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2750 break;
2751 case SAVE_ONE:
2752 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2753 break;
2754 case SAVE_R4:
2755 case SAVE_R8:
2756 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2757 break;
2758 case SAVE_STRUCT:
2759 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2760 break;
2761 case SAVE_NONE:
2762 default:
2763 break;
2764 }
2765
2766 return code;
2767 }
2768
2769 /*========================= End of Function ========================*/
2770
2771 void
2772 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2773 {
2774 }
2775
2776 /*------------------------------------------------------------------*/
2777 /* */
2778 /* Name - mono_arch_peephole_pass */
2779 /* */
2780 /* Function - Form a peephole pass at the code looking for */
2781 /* simple optimizations. */
2782 /* */
2783 /*------------------------------------------------------------------*/
2784
2785 void
2786 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2787 {
2788 MonoInst *ins, *n;
2789
2790 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2791 mono_peephole_ins (bb, ins);
2792 }
2793 }
2794
2795 /*========================= End of Function ========================*/
2796
2797 void
2798 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2799 {
2800 MonoInst *ins, *next;
2801
2802 if (bb->max_vreg > cfg->rs->next_vreg)
2803 cfg->rs->next_vreg = bb->max_vreg;
2804
2805 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2806 switch (ins->opcode) {
2807 case OP_DIV_IMM:
2808 case OP_REM_IMM:
2809 case OP_IDIV_IMM:
2810 case OP_IREM_IMM:
2811 case OP_IDIV_UN_IMM:
2812 case OP_IREM_UN_IMM:
2813 case OP_LOCALLOC_IMM:
2814 mono_decompose_op_imm (cfg, bb, ins);
2815 break;
2816 default:
2817 break;
2818 }
2819 }
2820 }
2821
2822 /*========================= End of Function ========================*/
2823
2824 /*------------------------------------------------------------------*/
2825 /* */
2826 /* Name - emit_float_to_int */
2827 /* */
2828 /* Function - Create instructions which will convert a floating */
2829 /* point value to integer. */
2830 /* */
2831 /*------------------------------------------------------------------*/
2832
2833 static guchar*
2834 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2835 {
2836 /* sreg is a float, dreg is an integer reg. */
2837 if (is_signed) {
2838 s390_cfdbr (code, dreg, 5, sreg);
2839 switch (size) {
2840 case 1:
2841 s390_lhi (code, s390_r0, 0);
2842 s390_lhi (code, s390_r13, 0xff);
2843 s390_ltr (code, dreg, dreg);
2844 s390_jnl (code, 4);
2845 s390_lhi (code, s390_r0, 0x80);
2846 s390_nr (code, dreg, s390_r13);
2847 s390_or (code, dreg, s390_r0);
2848 break;
2849 }
2850 } else {
2851 short *o[1];
2852 s390_basr (code, s390_r13, 0);
2853 s390_j (code, 10);
2854 s390_llong (code, 0x41e0000000000000LL);
2855 s390_llong (code, 0x41f0000000000000LL);
2856 s390_ldr (code, s390_f15, sreg);
2857 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2858 s390_jl (code, 0); CODEPTR(code, o[0]);
2859 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2860 s390_cfdbr (code, dreg, 7, s390_f15);
2861 s390_j (code, 4);
2862 PTRSLOT(code, o[0]);
2863 s390_cfdbr (code, dreg, 5, sreg);
2864 switch (size) {
2865 case 1:
2866 s390_lhi (code, s390_r0, 0xff);
2867 s390_nr (code, dreg, s390_r0);
2868 break;
2869 case 2:
2870 s390_lhi (code, s390_r0, -1);
2871 s390_srl (code, s390_r0, 0, 16);
2872 s390_nr (code, dreg, s390_r0);
2873 break;
2874 }
2875 }
2876 return code;
2877 }
2878
2879 /*========================= End of Function ========================*/
2880
2881 /*------------------------------------------------------------------*/
2882 /* */
2883 /* Name - mono_arch_output_basic_block */
2884 /* */
2885 /* Function - Perform the "real" work of emitting instructions */
2886 /* that will do the work of in the basic block. */
2887 /* */
2888 /*------------------------------------------------------------------*/
2889
2890 void
2891 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2892 {
2893 MonoInst *ins;
2894 MonoCallInst *call;
2895 guint offset;
2896 guint8 *code = cfg->native_code + cfg->code_len;
2897 MonoInst *last_ins = NULL;
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_lhi (code, s390_r0, ins->inst_imm);
2935 if (s390_is_uimm12(ins->inst_offset))
2936 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2937 else {
2938 s390_basr (code, s390_r13, 0);
2939 s390_j (code, 4);
2940 s390_word (code, ins->inst_offset);
2941 s390_l (code, s390_r13, 0, s390_r13, 4);
2942 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2943 }
2944 }
2945 break;
2946 case OP_STOREI2_MEMBASE_IMM: {
2947 s390_lhi (code, s390_r0, ins->inst_imm);
2948 if (s390_is_uimm12(ins->inst_offset)) {
2949 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2950 } else {
2951 s390_basr (code, s390_r13, 0);
2952 s390_j (code, 4);
2953 s390_word (code, ins->inst_offset);
2954 s390_l (code, s390_r13, 0, s390_r13, 4);
2955 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2956 }
2957 }
2958 break;
2959 case OP_STORE_MEMBASE_IMM:
2960 case OP_STOREI4_MEMBASE_IMM: {
2961 if (s390_is_imm16(ins->inst_imm)) {
2962 s390_lhi (code, s390_r0, ins->inst_imm);
2963 } else {
2964 s390_basr (code, s390_r13, 0);
2965 s390_j (code, 4);
2966 s390_word (code, ins->inst_imm);
2967 s390_l (code, s390_r0, 0, s390_r13, 4);
2968 }
2969 if (s390_is_uimm12(ins->inst_offset)) {
2970 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2971 } else {
2972 s390_basr (code, s390_r13, 0);
2973 s390_j (code, 4);
2974 s390_word (code, ins->inst_offset);
2975 s390_l (code, s390_r13, 0, s390_r13, 4);
2976 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2977 }
2978 }
2979 break;
2980 case OP_STOREI1_MEMBASE_REG: {
2981 if (s390_is_uimm12(ins->inst_offset)) {
2982 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2983 } else {
2984 s390_basr (code, s390_r13, 0);
2985 s390_j (code, 4);
2986 s390_word (code, ins->inst_offset);
2987 s390_l (code, s390_r13, 0, s390_r13, 4);
2988 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2989 }
2990 }
2991 break;
2992 case OP_STOREI2_MEMBASE_REG: {
2993 if (s390_is_uimm12(ins->inst_offset)) {
2994 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2995 } else {
2996 s390_basr (code, s390_r13, 0);
2997 s390_j (code, 4);
2998 s390_word (code, ins->inst_offset);
2999 s390_l (code, s390_r13, 0, s390_r13, 4);
3000 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3001 }
3002 }
3003 break;
3004 case OP_STORE_MEMBASE_REG:
3005 case OP_STOREI4_MEMBASE_REG: {
3006 if (s390_is_uimm12(ins->inst_offset)) {
3007 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3008 } else {
3009 s390_basr (code, s390_r13, 0);
3010 s390_j (code, 4);
3011 s390_word (code, ins->inst_offset);
3012 s390_l (code, s390_r13, 0, s390_r13, 4);
3013 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3014 }
3015 }
3016 break;
3017 case OP_LOADU4_MEM:
3018 g_assert_not_reached ();
3019 break;
3020 case OP_LOAD_MEMBASE:
3021 case OP_LOADI4_MEMBASE:
3022 case OP_LOADU4_MEMBASE: {
3023 if (s390_is_uimm12(ins->inst_offset))
3024 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3025 else {
3026 if (s390_is_imm16(ins->inst_offset)) {
3027 s390_lhi (code, s390_r13, ins->inst_offset);
3028 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3029 } else {
3030 s390_basr (code, s390_r13, 0);
3031 s390_j (code, 4);
3032 s390_word (code, ins->inst_offset);
3033 s390_l (code, s390_r13, 0, s390_r13, 4);
3034 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3035 }
3036 }
3037 }
3038 break;
3039 case OP_LOADU1_MEMBASE: {
3040 s390_lhi (code, s390_r0, 0);
3041 if (s390_is_uimm12(ins->inst_offset))
3042 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3043 else {
3044 s390_basr (code, s390_r13, 0);
3045 s390_j (code, 4);
3046 s390_word (code, ins->inst_offset);
3047 s390_l (code, s390_r13, 0, s390_r13, 4);
3048 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3049 }
3050 s390_lr (code, ins->dreg, s390_r0);
3051 }
3052 break;
3053 case OP_LOADI1_MEMBASE: {
3054 s390_lhi (code, s390_r0, 0);
3055 if (s390_is_uimm12(ins->inst_offset))
3056 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3057 else {
3058 s390_basr (code, s390_r13, 0);
3059 s390_j (code, 4);
3060 s390_word (code, ins->inst_offset);
3061 s390_l (code, s390_r13, 0, s390_r13, 4);
3062 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3063 }
3064 s390_lhi (code, s390_r13, 0x80);
3065 s390_nr (code, s390_r13, s390_r0);
3066 s390_jz (code, 5);
3067 s390_lhi (code, s390_r13, 0xff00);
3068 s390_or (code, s390_r0, s390_r13);
3069 s390_lr (code, ins->dreg, s390_r0);
3070 }
3071 break;
3072 case OP_LOADU2_MEMBASE: {
3073 s390_lhi (code, s390_r0, 0);
3074 if (s390_is_uimm12(ins->inst_offset))
3075 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
3076 else {
3077 s390_basr (code, s390_r13, 0);
3078 s390_j (code, 4);
3079 s390_word (code, ins->inst_offset);
3080 s390_l (code, s390_r13, 0, s390_r13, 4);
3081 s390_ar (code, s390_r13, ins->inst_basereg);
3082 s390_icm (code, s390_r0, 3, s390_r13, 0);
3083 }
3084 s390_lr (code, ins->dreg, s390_r0);
3085 }
3086 break;
3087 case OP_LOADI2_MEMBASE: {
3088 s390_lhi (code, s390_r0, 0);
3089 if (s390_is_uimm12(ins->inst_offset))
3090 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3091 else {
3092 s390_basr (code, s390_r13, 0);
3093 s390_j (code, 4);
3094 s390_word (code, ins->inst_offset);
3095 s390_l (code, s390_r13, 0, s390_r13, 4);
3096 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3097 }
3098 s390_lr (code, ins->dreg, s390_r0);
3099 }
3100 break;
3101
3102 case OP_ICONV_TO_I1: {
3103 if (ins->dreg != ins->sreg1)
3104 s390_lr (code, ins->dreg, ins->sreg1);
3105 s390_sll (code, ins->dreg, 0, 24);
3106 s390_sra (code, ins->dreg, 0, 24);
3107 }
3108 break;
3109 case OP_ICONV_TO_I2: {
3110 if (ins->dreg != ins->sreg1)
3111 s390_lr (code, ins->dreg, ins->sreg1);
3112 s390_sll (code, ins->dreg, 0, 16);
3113 s390_sra (code, ins->dreg, 0, 16);
3114 }
3115 break;
3116 case OP_ICONV_TO_U1: {
3117 s390_lhi (code, s390_r0, 0xff);
3118 if (ins->dreg != ins->sreg1) {
3119 s390_lr (code, ins->dreg, ins->sreg1);
3120 }
3121 s390_nr (code, ins->dreg, s390_r0);
3122 }
3123 break;
3124 case OP_ICONV_TO_U2: {
3125 s390_lhi (code, s390_r0, -1);
3126 s390_sll (code, s390_r0, 0, 16);
3127 s390_srl (code, s390_r0, 0, 16);
3128 if (ins->dreg != ins->sreg1) {
3129 s390_lr (code, ins->dreg, ins->sreg1);
3130 }
3131 s390_nr (code, ins->dreg, s390_r0);
3132 }
3133 break;
3134 case OP_COMPARE:
3135 case OP_ICOMPARE: {
3136 gboolean un = FALSE;
3137 MonoInst *next = ins->next;
3138
3139 if ((next) &&
3140 (((next->opcode >= OP_IBNE_UN) &&
3141 (next->opcode <= OP_IBLT_UN)) ||
3142 ((next->opcode >= OP_COND_EXC_NE_UN) &&
3143 (next->opcode <= OP_COND_EXC_LT_UN)) ||
3144 ((next->opcode >= OP_COND_EXC_INE_UN) &&
3145 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
3146 ((next->opcode == OP_CLT_UN) ||
3147 (next->opcode == OP_CGT_UN)) ||
3148 ((next->opcode == OP_ICLT_UN) ||
3149 (next->opcode == OP_ICGT_UN))))
3150 un = TRUE;
3151
3152 if (un)
3153 s390_clr (code, ins->sreg1, ins->sreg2);
3154 else
3155 s390_cr (code, ins->sreg1, ins->sreg2);
3156 }
3157 break;
3158 case OP_COMPARE_IMM:
3159 case OP_ICOMPARE_IMM: {
3160 gboolean un = FALSE;
3161 MonoInst *next = ins->next;
3162
3163 if ((next) &&
3164 (((next->opcode >= OP_IBNE_UN) &&
3165 (next->opcode <= OP_IBLT_UN)) ||
3166 ((next->opcode >= OP_COND_EXC_NE_UN) &&
3167 (next->opcode <= OP_COND_EXC_LT_UN)) ||
3168 ((next->opcode >= OP_COND_EXC_INE_UN) &&
3169 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
3170 ((next->opcode == OP_CLT_UN) ||
3171 (next->opcode == OP_CGT_UN)) ||
3172 ((next->opcode == OP_ICLT_UN) ||
3173 (next->opcode == OP_ICGT_UN))))
3174 un = TRUE;
3175
3176 if (s390_is_imm16 (ins->inst_imm)) {
3177 s390_lhi (code, s390_r0, ins->inst_imm);
3178 if (un)
3179 s390_clr (code, ins->sreg1, s390_r0);
3180 else
3181 s390_cr (code, ins->sreg1, s390_r0);
3182 }
3183 else {
3184 s390_basr (code, s390_r13, 0);
3185 s390_j (code, 4);
3186 s390_word (code, ins->inst_imm);
3187 if (un)
3188 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
3189 else
3190 s390_c (code, ins->sreg1, 0, s390_r13, 4);
3191 }
3192 }
3193 break;
3194 case OP_BREAK: {
3195 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_break);
3196 s390_brasl (code, s390_r14, 0);
3197 }
3198 break;
3199 case OP_ADDCC:
3200 case OP_IADDCC: {
3201 CHECK_SRCDST_COM;
3202 s390_alr (code, ins->dreg, src2);
3203 }
3204 break;
3205 case OP_IADD: {
3206 CHECK_SRCDST_COM;
3207 s390_ar (code, ins->dreg, src2);
3208 }
3209 break;
3210 case OP_ADC:
3211 case OP_IADC: {
3212 CHECK_SRCDST_COM;
3213 s390_alcr (code, ins->dreg, src2);
3214 }
3215 break;
3216 case OP_ADD_IMM:
3217 case OP_IADD_IMM: {
3218 if (ins->dreg != ins->sreg1) {
3219 s390_lr (code, ins->dreg, ins->sreg1);
3220 }
3221 if ((ins->next) &&
3222 (ins->next->opcode == OP_ADC_IMM)) {
3223 s390_basr (code, s390_r13, 0);
3224 s390_j (code, 4);
3225 s390_word (code, ins->inst_imm);
3226 s390_a (code, ins->dreg, 0, s390_r13, 4);
3227 } else {
3228 if (s390_is_imm16 (ins->inst_imm)) {
3229 s390_ahi (code, ins->dreg, ins->inst_imm);
3230 } else {
3231 s390_basr (code, s390_r13, 0);
3232 s390_j (code, 4);
3233 s390_word (code, ins->inst_imm);
3234 s390_a (code, ins->dreg, 0, s390_r13, 4);
3235 }
3236 }
3237 }
3238 break;
3239 case OP_ADDCC_IMM: {
3240 if ((ins->next) &&
3241 (ins->next->opcode == OP_ADC_IMM)) {
3242 s390_basr (code, s390_r13, 0);
3243 s390_j (code, 4);
3244 s390_word (code, ins->inst_imm);
3245 if (ins->dreg != ins->sreg1) {
3246 s390_lr (code, ins->dreg, ins->sreg1);
3247 }
3248 s390_al (code, ins->dreg, 0, s390_r13, 4);
3249 } else {
3250 if (s390_is_imm16 (ins->inst_imm)) {
3251 if (ins->dreg != ins->sreg1) {
3252 s390_lr (code, ins->dreg, ins->sreg1);
3253 }
3254 s390_lhi (code, s390_r0, ins->inst_imm);
3255 s390_alcr (code, ins->dreg, s390_r0);
3256 } else {
3257 s390_basr (code, s390_r13, 0);
3258 s390_j (code, 4);
3259 s390_word (code, ins->inst_imm);
3260 if (ins->dreg != ins->sreg1) {
3261 s390_lr (code, ins->dreg, ins->sreg1);
3262 }
3263 s390_al (code, ins->dreg, 0, s390_r13, 4);
3264 }
3265 }
3266 }
3267 break;
3268 case OP_ADC_IMM: {
3269 if (s390_is_imm16 (ins->inst_imm)) {
3270 if (ins->dreg != ins->sreg1) {
3271 s390_lr (code, ins->dreg, ins->sreg1);
3272 }
3273 s390_lhi (code, s390_r0, ins->inst_imm);
3274 s390_alcr (code, ins->dreg, s390_r0);
3275 } else {
3276 s390_basr (code, s390_r13, 0);
3277 s390_j (code, 4);
3278 s390_word (code, ins->inst_imm);
3279 s390_l (code, s390_r13, 0, s390_r13, 4);
3280 s390_alcr (code, ins->dreg, s390_r13);
3281 }
3282 }
3283 break;
3284 case OP_IADD_OVF:
3285 case OP_S390_IADD_OVF: {
3286 CHECK_SRCDST_COM;
3287 s390_ar (code, ins->dreg, src2);
3288 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3289 }
3290 break;
3291 case OP_IADD_OVF_UN:
3292 case OP_S390_IADD_OVF_UN: {
3293 CHECK_SRCDST_COM;
3294 s390_alr (code, ins->dreg, src2);
3295 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3296 }
3297 break;
3298 case OP_LADD:
3299 case OP_S390_LADD: {
3300 s390_alr (code, s390_r0, ins->sreg1);
3301 s390_jnc (code, 4);
3302 s390_ahi (code, s390_r1, 1);
3303 s390_ar (code, s390_r1, ins->sreg2);
3304 s390_lr (code, ins->dreg, s390_r0);
3305 s390_lr (code, ins->dreg+1, s390_r1);
3306 }
3307 break;
3308 case OP_LADD_OVF:
3309 case OP_S390_LADD_OVF: {
3310 short int *o[1];
3311 s390_alr (code, s390_r0, ins->sreg1);
3312 s390_jnc (code, 0); CODEPTR(code, o[0]);
3313 s390_ahi (code, s390_r1, 1);
3314 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3315 PTRSLOT (code, o[0]);
3316 s390_ar (code, s390_r1, ins->sreg2);
3317 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3318 s390_lr (code, ins->dreg, s390_r0);
3319 s390_lr (code, ins->dreg+1, s390_r1);
3320 }
3321 break;
3322 case OP_LADD_OVF_UN:
3323 case OP_S390_LADD_OVF_UN: {
3324 s390_alr (code, s390_r0, ins->sreg1);
3325 s390_alcr (code, s390_r1, ins->sreg2);
3326 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3327 s390_lr (code, ins->dreg, s390_r0);
3328 s390_lr (code, ins->dreg+1, s390_r1);
3329 }
3330 break;
3331 case OP_ADD_OVF_CARRY: {
3332 CHECK_SRCDST_COM;
3333 s390_lhi (code, s390_r0, 0);
3334 s390_lr (code, s390_r1, s390_r0);
3335 s390_alcr (code, s390_r0, s390_r1);
3336 s390_ar (code, ins->dreg, src2);
3337 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3338 s390_ar (code, ins->dreg, s390_r0);
3339 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3340 }
3341 break;
3342 case OP_ADD_OVF_UN_CARRY: {
3343 CHECK_SRCDST_COM;
3344 s390_alcr (code, ins->dreg, src2);
3345 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3346 }
3347 break;
3348 case OP_SUBCC:
3349 case OP_ISUBCC: {
3350 CHECK_SRCDST_NCOM;
3351 s390_slr (code, ins->dreg, src2);
3352 }
3353 break;
3354 case OP_ISUB: {
3355 CHECK_SRCDST_NCOM;
3356 s390_sr (code, ins->dreg, src2);
3357 }
3358 break;
3359 case OP_SBB:
3360 case OP_ISBB: {
3361 CHECK_SRCDST_NCOM;
3362 s390_slbr (code, ins->dreg, src2);
3363 }
3364 break;
3365 case OP_SUBCC_IMM: {
3366 if (s390_is_imm16 (-ins->inst_imm)) {
3367 if (ins->dreg != ins->sreg1) {
3368 s390_lr (code, ins->dreg, ins->sreg1);
3369 }
3370 s390_lhi (code, s390_r0, ins->inst_imm);
3371 s390_slr (code, ins->dreg, s390_r0);
3372 } else {
3373 s390_basr (code, s390_r13, 0);
3374 s390_j (code, 4);
3375 s390_word (code, ins->inst_imm);
3376 if (ins->dreg != ins->sreg1) {
3377 s390_lr (code, ins->dreg, ins->sreg1);
3378 }
3379 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3380 }
3381 }
3382 break;
3383 case OP_SUB_IMM:
3384 case OP_ISUB_IMM: {
3385 if (s390_is_imm16 (-ins->inst_imm)) {
3386 if (ins->dreg != ins->sreg1) {
3387 s390_lr (code, ins->dreg, ins->sreg1);
3388 }
3389 s390_ahi (code, ins->dreg, -ins->inst_imm);
3390 } else {
3391 s390_basr (code, s390_r13, 0);
3392 s390_j (code, 4);
3393 s390_word (code, ins->inst_imm);
3394 if (ins->dreg != ins->sreg1) {
3395 s390_lr (code, ins->dreg, ins->sreg1);
3396 }
3397 s390_s (code, ins->dreg, 0, s390_r13, 4);
3398 }
3399 }
3400 break;
3401 case OP_SBB_IMM: {
3402 if (ins->dreg != ins->sreg1) {
3403 s390_lr (code, ins->dreg, ins->sreg1);
3404 }
3405 if (s390_is_imm16 (-ins->inst_imm)) {
3406 s390_lhi (code, s390_r0, ins->inst_imm);
3407 s390_slbr (code, ins->dreg, s390_r0);
3408 } else {
3409 s390_basr (code, s390_r13, 0);
3410 s390_j (code, 4);
3411 s390_word (code, ins->inst_imm);
3412 s390_slb (code, ins->dreg, 0, s390_r13, 4);
3413 }
3414 }
3415 break;
3416 case OP_ISUB_OVF:
3417 case OP_S390_ISUB_OVF: {
3418 CHECK_SRCDST_NCOM;
3419 s390_sr (code, ins->dreg, src2);
3420 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3421 }
3422 break;
3423 case OP_ISUB_OVF_UN:
3424 case OP_S390_ISUB_OVF_UN: {
3425 CHECK_SRCDST_NCOM;
3426 s390_slr (code, ins->dreg, src2);
3427 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3428 }
3429 break;
3430 case OP_LSUB:
3431 case OP_S390_LSUB: {
3432 s390_lr (code, s390_r14, ins->sreg2);
3433 s390_slr (code, s390_r0, ins->sreg1);
3434 s390_jnl (code, 4);
3435 s390_ahi (code, s390_r14, 1);
3436 s390_sr (code, s390_r1, s390_r14);
3437 s390_lr (code, ins->dreg, s390_r0);
3438 s390_lr (code, ins->dreg+1, s390_r1);
3439 }
3440 break;
3441 case OP_LSUB_OVF:
3442 case OP_S390_LSUB_OVF: {
3443 short int *o[1];
3444 s390_lr (code, s390_r14, ins->sreg2);
3445 s390_slr (code, s390_r0, ins->sreg1);
3446 s390_jnl (code, 0); CODEPTR(code, o[0]);
3447 s390_ahi (code, s390_r14, 1);
3448 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3449 PTRSLOT (code, o[0]);
3450 s390_sr (code, s390_r1, s390_r14);
3451 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3452 s390_lr (code, ins->dreg, s390_r0);
3453 s390_lr (code, ins->dreg+1, s390_r1);
3454 }
3455 break;
3456 case OP_LSUB_OVF_UN:
3457 case OP_S390_LSUB_OVF_UN: {
3458 s390_slr (code, s390_r0, ins->sreg1);
3459 s390_slbr (code, s390_r1, ins->sreg2);
3460 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3461 s390_lr (code, ins->dreg, s390_r0);
3462 s390_lr (code, ins->dreg+1, s390_r1);
3463 }
3464 break;
3465 case OP_SUB_OVF_CARRY: {
3466 CHECK_SRCDST_NCOM;
3467 s390_lhi (code, s390_r0, 0);
3468 s390_lr (code, s390_r1, s390_r0);
3469 s390_slbr (code, s390_r0, s390_r1);
3470 s390_sr (code, ins->dreg, src2);
3471 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3472 s390_ar (code, ins->dreg, s390_r0);
3473 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3474 }
3475 break;
3476 case OP_SUB_OVF_UN_CARRY: {
3477 CHECK_SRCDST_NCOM;
3478 s390_slbr (code, ins->dreg, src2);
3479 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3480 }
3481 break;
3482 case OP_IAND: {
3483 if (ins->sreg1 == ins->dreg) {
3484 s390_nr (code, ins->dreg, ins->sreg2);
3485 }
3486 else {
3487 if (ins->sreg2 == ins->dreg) {
3488 s390_nr (code, ins->dreg, ins->sreg1);
3489 }
3490 else {
3491 s390_lr (code, ins->dreg, ins->sreg1);
3492 s390_nr (code, ins->dreg, ins->sreg2);
3493 }
3494 }
3495 }
3496 break;
3497 case OP_AND_IMM:
3498 case OP_IAND_IMM: {
3499 if (s390_is_imm16 (ins->inst_imm)) {
3500 s390_lhi (code, s390_r0, ins->inst_imm);
3501 if (ins->dreg != ins->sreg1) {
3502 s390_lr (code, ins->dreg, ins->sreg1);
3503 }
3504 s390_nr (code, ins->dreg, s390_r0);
3505 } else {
3506 s390_basr (code, s390_r13, 0);
3507 s390_j (code, 4);
3508 s390_word (code, ins->inst_imm);
3509 if (ins->dreg != ins->sreg1) {
3510 s390_lr (code, ins->dreg, ins->sreg1);
3511 }
3512 s390_n (code, ins->dreg, 0, s390_r13, 4);
3513 }
3514 }
3515 break;
3516 case OP_IDIV: {
3517 s390_lr (code, s390_r0, ins->sreg1);
3518 s390_srda (code, s390_r0, 0, 32);
3519 s390_dr (code, s390_r0, ins->sreg2);
3520 s390_lr (code, ins->dreg, s390_r1);
3521 }
3522 break;
3523 case OP_IDIV_UN: {
3524 s390_lr (code, s390_r0, ins->sreg1);
3525 s390_srdl (code, s390_r0, 0, 32);
3526 s390_dlr (code, s390_r0, ins->sreg2);
3527 s390_lr (code, ins->dreg, s390_r1);
3528 }
3529 break;
3530 case OP_IREM: {
3531 s390_lr (code, s390_r0, ins->sreg1);
3532 s390_srda (code, s390_r0, 0, 32);
3533 s390_dr (code, s390_r0, ins->sreg2);
3534 s390_lr (code, ins->dreg, s390_r0);
3535 break;
3536 case OP_IREM_UN:
3537 s390_lr (code, s390_r0, ins->sreg1);
3538 s390_srdl (code, s390_r0, 0, 32);
3539 s390_dlr (code, s390_r0, ins->sreg2);
3540 s390_lr (code, ins->dreg, s390_r0);
3541 }
3542 break;
3543 case OP_IOR: {
3544 if (ins->sreg1 == ins->dreg) {
3545 s390_or (code, ins->dreg, ins->sreg2);
3546 }
3547 else {
3548 if (ins->sreg2 == ins->dreg) {
3549 s390_or (code, ins->dreg, ins->sreg1);
3550 }
3551 else {
3552 s390_lr (code, ins->dreg, ins->sreg1);
3553 s390_or (code, ins->dreg, ins->sreg2);
3554 }
3555 }
3556 }
3557 break;
3558 case OP_OR_IMM:
3559 case OP_IOR_IMM: {
3560 if (s390_is_imm16 (ins->inst_imm)) {
3561 s390_lhi (code, s390_r0, ins->inst_imm);
3562 if (ins->dreg != ins->sreg1) {
3563 s390_lr (code, ins->dreg, ins->sreg1);
3564 }
3565 s390_or (code, ins->dreg, s390_r0);
3566 } else {
3567 s390_basr (code, s390_r13, 0);
3568 s390_j (code, 4);
3569 s390_word (code, ins->inst_imm);
3570 if (ins->dreg != ins->sreg1) {
3571 s390_lr (code, ins->dreg, ins->sreg1);
3572 }
3573 s390_o (code, ins->dreg, 0, s390_r13, 4);
3574 }
3575 }
3576 break;
3577 case OP_IXOR: {
3578 if (ins->sreg1 == ins->dreg) {
3579 s390_xr (code, ins->dreg, ins->sreg2);
3580 }
3581 else {
3582 if (ins->sreg2 == ins->dreg) {
3583 s390_xr (code, ins->dreg, ins->sreg1);
3584 }
3585 else {
3586 s390_lr (code, ins->dreg, ins->sreg1);
3587 s390_xr (code, ins->dreg, ins->sreg2);
3588 }
3589 }
3590 }
3591 break;
3592 case OP_XOR_IMM:
3593 case OP_IXOR_IMM: {
3594 if (s390_is_imm16 (ins->inst_imm)) {
3595 s390_lhi (code, s390_r0, ins->inst_imm);
3596 if (ins->dreg != ins->sreg1) {
3597 s390_lr (code, ins->dreg, ins->sreg1);
3598 }
3599 s390_xr (code, ins->dreg, s390_r0);
3600 } else {
3601 s390_basr (code, s390_r13, 0);
3602 s390_j (code, 4);
3603 s390_word (code, ins->inst_imm);
3604 if (ins->dreg != ins->sreg1) {
3605 s390_lr (code, ins->dreg, ins->sreg1);
3606 }
3607 s390_x (code, ins->dreg, 0, s390_r13, 4);
3608 }
3609 }
3610 break;
3611 case OP_ISHL: {
3612 CHECK_SRCDST_NCOM;
3613 s390_sll (code, ins->dreg, src2, 0);
3614 }
3615 break;
3616 case OP_SHL_IMM:
3617 case OP_ISHL_IMM: {
3618 if (ins->sreg1 != ins->dreg) {
3619 s390_lr (code, ins->dreg, ins->sreg1);
3620 }
3621 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3622 }
3623 break;
3624 case OP_ISHR: {
3625 CHECK_SRCDST_NCOM;
3626 s390_sra (code, ins->dreg, src2, 0);
3627 }
3628 break;
3629 case OP_SHR_IMM:
3630 case OP_ISHR_IMM: {
3631 if (ins->sreg1 != ins->dreg) {
3632 s390_lr (code, ins->dreg, ins->sreg1);
3633 }
3634 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3635 }
3636 break;
3637 case OP_SHR_UN_IMM:
3638 case OP_ISHR_UN_IMM: {
3639 if (ins->sreg1 != ins->dreg) {
3640 s390_lr (code, ins->dreg, ins->sreg1);
3641 }
3642 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3643 }
3644 break;
3645 case OP_ISHR_UN: {
3646 CHECK_SRCDST_NCOM;
3647 s390_srl (code, ins->dreg, src2, 0);
3648 }
3649 break;
3650 case OP_INOT: {
3651 if (ins->sreg1 != ins->dreg) {
3652 s390_lr (code, ins->dreg, ins->sreg1);
3653 }
3654 s390_lhi (code, s390_r0, -1);
3655 s390_xr (code, ins->dreg, s390_r0);
3656 }
3657 break;
3658 case OP_INEG: {
3659 s390_lcr (code, ins->dreg, ins->sreg1);
3660 }
3661 break;
3662 case OP_S390_LNEG: {
3663 /* From gcc code */
3664 g_assert (ins->dreg + 1 != ins->sreg1);
3665 s390_lcr (code, ins->dreg + 1, ins->sreg2);
3666 s390_lcr (code, ins->dreg, ins->sreg1);
3667 s390_je (code, 3);
3668 s390_bctr (code, ins->dreg + 1, 0);
3669 }
3670 break;
3671 case OP_IMUL: {
3672 if (ins->sreg1 == ins->dreg) {
3673 s390_msr (code, ins->dreg, ins->sreg2);
3674 }
3675 else {
3676 if (ins->sreg2 == ins->dreg) {
3677 s390_msr (code, ins->dreg, ins->sreg1);
3678 }
3679 else {
3680 s390_lr (code, ins->dreg, ins->sreg1);
3681 s390_msr (code, ins->dreg, ins->sreg2);
3682 }
3683 }
3684 }
3685 break;
3686 case OP_MUL_IMM:
3687 case OP_IMUL_IMM: {
3688 if (s390_is_imm16 (ins->inst_imm)) {
3689 s390_lhi (code, s390_r13, ins->inst_imm);
3690 } else {
3691 s390_basr (code, s390_r13, 0);
3692 s390_j (code, 4);
3693 s390_word (code, ins->inst_imm);
3694 // if (ins->dreg != ins->sreg1) {
3695 // s390_lr (code, ins->dreg, ins->sreg1);
3696 // }
3697 s390_l (code, s390_r13, 0, s390_r13, 4);
3698 }
3699 if (ins->dreg != ins->sreg1) {
3700 s390_lr (code, ins->dreg, ins->sreg1);
3701 }
3702 s390_msr (code, ins->dreg, s390_r13);
3703 }
3704 break;
3705 case OP_IMUL_OVF: {
3706 short int *o[2];
3707 s390_ltr (code, s390_r1, ins->sreg1);
3708 s390_jz (code, 0); CODEPTR(code, o[0]);
3709 s390_ltr (code, s390_r0, ins->sreg2);
3710 s390_jnz (code, 6);
3711 s390_lhi (code, s390_r1, 0);
3712 s390_j (code, 0); CODEPTR(code, o[1]);
3713 s390_xr (code, s390_r0, s390_r1);
3714 s390_msr (code, s390_r1, ins->sreg2);
3715 s390_xr (code, s390_r0, s390_r1);
3716 s390_srl (code, s390_r0, 0, 31);
3717 s390_ltr (code, s390_r0, s390_r0);
3718 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3719 PTRSLOT (code, o[0]);
3720 PTRSLOT (code, o[1]);
3721 s390_lr (code, ins->dreg, s390_r1);
3722 }
3723 break;
3724 case OP_IMUL_OVF_UN: {
3725 s390_lhi (code, s390_r0, 0);
3726 s390_lr (code, s390_r1, ins->sreg1);
3727 s390_mlr (code, s390_r0, ins->sreg2);
3728 s390_ltr (code, s390_r0, s390_r0);
3729 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3730 s390_lr (code, ins->dreg, s390_r1);
3731 }
3732 break;
3733 case OP_LMUL: {
3734 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3735 s390_srda (code, s390_r0, 0, 32);
3736 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3737 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3738 s390_srl (code, s390_r0, 0, 31);
3739 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3740 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3741 s390_srl (code, s390_r13, 0, 31);
3742 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3743 s390_ar (code, s390_r0, s390_r13);
3744 s390_st (code, s390_r0, 0, ins->dreg, 0);
3745 s390_st (code, s390_r1, 0, ins->dreg, 4);
3746 }
3747 break;
3748 case OP_ICONST: {
3749 if (s390_is_imm16(ins->inst_c0)) {
3750 s390_lhi (code, ins->dreg, ins->inst_c0);
3751 } else {
3752 s390_basr (code, s390_r13, 0);
3753 s390_j (code, 4);
3754 s390_word (code, ins->inst_c0);
3755 s390_l (code, ins->dreg, 0, s390_r13, 4);
3756 }
3757 }
3758 break;
3759 case OP_AOTCONST: {
3760 s390_basr (code, s390_r13, 0);
3761 s390_j (code, 4);
3762 mono_add_patch_info (cfg, code - cfg->native_code,
3763 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3764 s390_word (code, 0);
3765 s390_l (code,ins->dreg, 0, s390_r13, 4);
3766 }
3767 break;
3768 case OP_JUMP_TABLE: {
3769 mono_add_patch_info (cfg, code - cfg->native_code,
3770 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3771 s390_basr (code, s390_r13, 0);
3772 s390_j (code, 4);
3773 s390_word (code, 0);
3774 s390_l (code, ins->dreg, 0, s390_r13, 4);
3775 }
3776 break;
3777 case OP_ICONV_TO_I4:
3778 case OP_ICONV_TO_U4:
3779 case OP_MOVE: {
3780 if (ins->dreg != ins->sreg1) {
3781 s390_lr (code, ins->dreg, ins->sreg1);
3782 }
3783 }
3784 break;
3785 case OP_SETLRET: {
3786 int saved = ins->sreg1;
3787 if (ins->sreg1 == s390_r2) {
3788 s390_lr (code, s390_r0, ins->sreg1);
3789 saved = s390_r0;
3790 }
3791 if (ins->sreg2 != s390_r2)
3792 s390_lr (code, s390_r2, ins->sreg2);
3793 if (saved != s390_r3)
3794 s390_lr (code, s390_r3, saved);
3795 break;
3796 }
3797 case OP_FMOVE: {
3798 if (ins->dreg != ins->sreg1) {
3799 s390_ldr (code, ins->dreg, ins->sreg1);
3800 }
3801 }
3802 break;
3803 case OP_S390_SETF4RET: {
3804 s390_ledbr (code, ins->dreg, ins->sreg1);
3805 }
3806 break;
3807 case OP_TLS_GET: {
3808 if (s390_is_imm16 (ins->inst_offset)) {
3809 s390_lhi (code, s390_r13, ins->inst_offset);
3810 } else {
3811 s390_bras (code, s390_r13, 0);
3812 s390_j (code, 4);
3813 s390_word (code, ins->inst_offset);
3814 s390_l (code, s390_r13, 0, s390_r13, 4);
3815 }
3816 s390_ear (code, s390_r1, 0);
3817 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
3818 }
3819 break;
3820 case OP_FCONV_TO_R4: {
3821 // FIXME:
3822 if (ins->dreg != ins->sreg1) {
3823 s390_ldr (code, ins->dreg, ins->sreg1);
3824 }
3825 /*
3826 NOT_IMPLEMENTED;
3827 if ((ins->next) &&
3828 (ins->next->opcode != OP_FMOVE) &&
3829 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3830 s390_ledbr (code, ins->dreg, ins->sreg1);
3831 */
3832 }
3833 break;
3834 case OP_JMP: {
3835 if (cfg->method->save_lmf)
3836 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3837
3838 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3839 code = emit_load_volatile_registers(code, cfg);
3840 }
3841
3842 code = backUpStackPtr(cfg, code, STK_BASE);
3843 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3844 mono_add_patch_info (cfg, code - cfg->native_code,
3845 MONO_PATCH_INFO_METHOD_JUMP,
3846 ins->inst_p0);
3847 s390_jcl (code, S390_CC_UN, 0);
3848 }
3849 break;
3850 case OP_CHECK_THIS: {
3851 /* ensure ins->sreg1 is not NULL */
3852 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3853 }
3854 break;
3855 case OP_ARGLIST: {
3856 int offset = cfg->sig_cookie + cfg->stack_usage;
3857
3858 if (s390_is_imm16 (offset))
3859 s390_lhi (code, s390_r0, offset);
3860 else {
3861 s390_basr (code, s390_r13, 0);
3862 s390_j (code, 4);
3863 s390_word (code, offset);
3864 s390_l (code, s390_r0, 0, s390_r13, 0);
3865 }
3866 s390_ar (code, s390_r0, cfg->frame_reg);
3867 s390_st (code, s390_r0, 0, ins->sreg1, 0);
3868 }
3869 break;
3870 case OP_FCALL: {
3871 call = (MonoCallInst*)ins;
3872 if (ins->flags & MONO_INST_HAS_METHOD)
3873 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3874 call->method);
3875 else
3876 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3877 call->fptr);
3878 s390_brasl (code, s390_r14, 0);
3879 if (call->signature->ret->type == MONO_TYPE_R4)
3880 s390_ldebr (code, s390_f0, s390_f0);
3881 }
3882 break;
3883 case OP_LCALL:
3884 case OP_VCALL:
3885 case OP_VCALL2:
3886 case OP_VOIDCALL:
3887 case OP_CALL: {
3888 call = (MonoCallInst*)ins;
3889 if (ins->flags & MONO_INST_HAS_METHOD)
3890 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3891 else
3892 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3893 s390_brasl (code, s390_r14, 0);
3894 }
3895 break;
3896 case OP_FCALL_REG: {
3897 call = (MonoCallInst*)ins;
3898 s390_lr (code, s390_r1, ins->sreg1);
3899 s390_basr (code, s390_r14, s390_r1);
3900 if (call->signature->ret->type == MONO_TYPE_R4)
3901 s390_ldebr (code, s390_f0, s390_f0);
3902 }
3903 break;
3904 case OP_LCALL_REG:
3905 case OP_VCALL_REG:
3906 case OP_VCALL2_REG:
3907 case OP_VOIDCALL_REG:
3908 case OP_CALL_REG: {
3909 s390_lr (code, s390_r1, ins->sreg1);
3910 s390_basr (code, s390_r14, s390_r1);
3911 }
3912 break;
3913 case OP_LCALL_MEMBASE:
3914 case OP_VCALL_MEMBASE:
3915 case OP_VCALL2_MEMBASE:
3916 case OP_VOIDCALL_MEMBASE:
3917 case OP_FCALL_MEMBASE:
3918 case OP_CALL_MEMBASE: {
3919 call = (MonoCallInst*)ins;
3920 if (s390_is_uimm12(ins->inst_offset))
3921 s390_l (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3922 else {
3923 if (s390_is_imm16(ins->inst_offset)) {
3924 s390_lhi (code, s390_r13, ins->inst_offset);
3925 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3926 } else {
3927 s390_basr (code, s390_r13, 0);
3928 s390_j (code, 4);
3929 s390_word (code, ins->inst_offset);
3930 s390_l (code, s390_r13, 0, s390_r13, 4);
3931 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3932 }
3933 }
3934 s390_basr (code, s390_r14, s390_r1);
3935 if (ins->opcode == OP_FCALL_MEMBASE && call->signature->ret->type == MONO_TYPE_R4)
3936 s390_ldebr (code, s390_f0, s390_f0);
3937 }
3938 break;
3939 case OP_OUTARG:
3940 g_assert_not_reached ();
3941 break;
3942 case OP_LOCALLOC: {
3943 /*------------------------------------------*/
3944 /* To allocate space on the stack we have */
3945 /* to allow room for parameters passed in */
3946 /* calls, the backchain pointer and round */
3947 /* it to our stack alignment requirements */
3948 /*------------------------------------------*/
3949 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3950 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3951 s390_lr (code, s390_r1, ins->sreg1);
3952 if (ins->flags & MONO_INST_INIT)
3953 s390_lr (code, s390_r0, ins->sreg1);
3954 s390_ahi (code, s390_r1, 14);
3955 s390_srl (code, s390_r1, 0, 3);
3956 s390_sll (code, s390_r1, 0, 3);
3957 if (cfg->method->save_lmf) {
3958 /*----------------------------------*/
3959 /* we have to adjust lmf ebp value */
3960 /*----------------------------------*/
3961 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3962
3963 s390_lr (code, s390_r13, cfg->frame_reg);
3964 if (s390_is_uimm16(lmfOffset))
3965 s390_ahi (code, s390_r13, lmfOffset);
3966 else {
3967 s390_basr (code, s390_r14, 0);
3968 s390_j (code, 4);
3969 s390_word (code, lmfOffset);
3970 s390_a (code, s390_r13, 0, s390_r14, 4);
3971 }
3972 s390_lr (code, s390_r14, STK_BASE);
3973 s390_sr (code, s390_r14, s390_r1);
3974 s390_st (code, s390_r14, 0, s390_r13,
3975 G_STRUCT_OFFSET(MonoLMF, ebp));
3976 }
3977 s390_l (code, s390_r13, 0, STK_BASE, 0);
3978 s390_sr (code, STK_BASE, s390_r1);
3979 s390_st (code, s390_r13, 0, STK_BASE, 0);
3980 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3981 s390_srl (code, ins->dreg, 0, 3);
3982 s390_sll (code, ins->dreg, 0, 3);
3983 if (ins->flags & MONO_INST_INIT) {
3984 s390_lr (code, s390_r1, s390_r0);
3985 s390_lr (code, s390_r0, ins->dreg);
3986 s390_lr (code, s390_r14, s390_r12);
3987 s390_lhi (code, s390_r13, 0);
3988 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3989 s390_jo (code, -2);
3990 s390_lr (code, s390_r12, s390_r14);
3991 }
3992 }
3993 break;
3994 case OP_THROW: {
3995 s390_lr (code, s390_r2, ins->sreg1);
3996 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3997 (gpointer)"mono_arch_throw_exception");
3998 s390_brasl (code, s390_r14, 0);
3999 }
4000 break;
4001 case OP_RETHROW: {
4002 s390_lr (code, s390_r2, ins->sreg1);
4003 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4004 (gpointer)"mono_arch_rethrow_exception");
4005 s390_brasl (code, s390_r14, 0);
4006 }
4007 break;
4008 case OP_START_HANDLER: {
4009 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4010 if (s390_is_uimm12 (spvar->inst_offset)) {
4011 s390_st (code, s390_r14, 0,
4012 spvar->inst_basereg,
4013 spvar->inst_offset);
4014 } else {
4015 s390_basr (code, s390_r13, 0);
4016 s390_j (code, 4);
4017 s390_word (code, spvar->inst_offset);
4018 s390_l (code, s390_r13, 0, s390_r13, 4);
4019 s390_st (code, s390_r14, s390_r13,
4020 spvar->inst_basereg, 0);
4021 }
4022 }
4023 break;
4024 case OP_ENDFILTER: {
4025 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4026 if (ins->sreg1 != s390_r2)
4027 s390_lr (code, s390_r2, ins->sreg1);
4028 if (s390_is_uimm12 (spvar->inst_offset)) {
4029 s390_l (code, s390_r14, 0, spvar->inst_basereg,
4030 spvar->inst_offset);
4031 } else {
4032 s390_basr (code, s390_r13, 0);
4033 s390_j (code, 4);
4034 s390_word (code, spvar->inst_offset);
4035 s390_l (code, s390_r13, 0, s390_r13, 4);
4036 s390_l (code, s390_r14, s390_r13,
4037 spvar->inst_basereg, 0);
4038 }
4039 s390_br (code, s390_r14);
4040 }
4041 break;
4042 case OP_ENDFINALLY: {
4043 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
4044 if (s390_is_uimm12 (spvar->inst_offset)) {
4045 s390_l (code, s390_r14, 0, spvar->inst_basereg,
4046 spvar->inst_offset);
4047 } else {
4048 s390_basr (code, s390_r13, 0);
4049 s390_j (code, 4);
4050 s390_word (code, spvar->inst_offset);
4051 s390_l (code, s390_r13, 0, s390_r13, 4);
4052 s390_l (code, s390_r14, s390_r13,
4053 spvar->inst_basereg, 0);
4054 }
4055 s390_br (code, s390_r14);
4056 }
4057 break;
4058 case OP_CALL_HANDLER: {
4059 mono_add_patch_info (cfg, code-cfg->native_code,
4060 MONO_PATCH_INFO_BB, ins->inst_target_bb);
4061 s390_brasl (code, s390_r14, 0);
4062 }
4063 break;
4064 case OP_LABEL: {
4065 ins->inst_c0 = code - cfg->native_code;
4066 }
4067 break;
4068 case OP_RELAXED_NOP:
4069 case OP_NOP:
4070 case OP_DUMMY_USE:
4071 case OP_DUMMY_STORE:
4072 case OP_NOT_REACHED:
4073 case OP_NOT_NULL: {
4074 }
4075 break;
4076 case OP_BR:
4077 EMIT_UNCOND_BRANCH(ins);
4078 break;
4079 case OP_BR_REG: {
4080 s390_br (code, ins->sreg1);
4081 }
4082 break;
4083 case OP_CEQ:
4084 case OP_ICEQ: {
4085 s390_lhi (code, ins->dreg, 1);
4086 s390_jz (code, 4);
4087 s390_lhi (code, ins->dreg, 0);
4088 }
4089 break;
4090 case OP_CLT:
4091 case OP_ICLT: {
4092 s390_lhi (code, ins->dreg, 1);
4093 s390_jl (code, 4);
4094 s390_lhi (code, ins->dreg, 0);
4095 }
4096 break;
4097 case OP_CLT_UN:
4098 case OP_ICLT_UN: {
4099 s390_lhi (code, ins->dreg, 1);
4100 s390_jlo (code, 4);
4101 s390_lhi (code, ins->dreg, 0);
4102 }
4103 break;
4104 case OP_CGT:
4105 case OP_ICGT: {
4106 s390_lhi (code, ins->dreg, 1);
4107 s390_jh (code, 4);
4108 s390_lhi (code, ins->dreg, 0);
4109 }
4110 break;
4111 case OP_CGT_UN:
4112 case OP_ICGT_UN: {
4113 s390_lhi (code, ins->dreg, 1);
4114 s390_jho (code, 4);
4115 s390_lhi (code, ins->dreg, 0);
4116 }
4117 break;
4118 case OP_COND_EXC_EQ:
4119 case OP_COND_EXC_IEQ:
4120 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4121 break;
4122 case OP_COND_EXC_NE_UN:
4123 case OP_COND_EXC_INE_UN:
4124 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4125 break;
4126 case OP_COND_EXC_LT:
4127 case OP_COND_EXC_ILT:
4128 case OP_COND_EXC_LT_UN:
4129 case OP_COND_EXC_ILT_UN:
4130 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4131 break;
4132 case OP_COND_EXC_GT:
4133 case OP_COND_EXC_IGT:
4134 case OP_COND_EXC_GT_UN:
4135 case OP_COND_EXC_IGT_UN:
4136 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4137 break;
4138 case OP_COND_EXC_GE:
4139 case OP_COND_EXC_IGE:
4140 case OP_COND_EXC_GE_UN:
4141 case OP_COND_EXC_IGE_UN:
4142 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4143 break;
4144 case OP_COND_EXC_LE:
4145 case OP_COND_EXC_ILE:
4146 case OP_COND_EXC_LE_UN:
4147 case OP_COND_EXC_ILE_UN:
4148 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4149 break;
4150 case OP_COND_EXC_OV:
4151 case OP_COND_EXC_IOV:
4152 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4153 break;
4154 case OP_COND_EXC_NO:
4155 case OP_COND_EXC_INO:
4156 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4157 break;
4158 case OP_COND_EXC_C:
4159 case OP_COND_EXC_IC:
4160 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4161 break;
4162 case OP_COND_EXC_NC:
4163 case OP_COND_EXC_INC:
4164 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4165 break;
4166 case OP_IBEQ:
4167 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4168 break;
4169 case OP_IBNE_UN:
4170 EMIT_COND_BRANCH (ins, S390_CC_NE);
4171 break;
4172 case OP_IBLT:
4173 case OP_IBLT_UN:
4174 EMIT_COND_BRANCH (ins, S390_CC_LT);
4175 break;
4176 case OP_IBGT:
4177 case OP_IBGT_UN:
4178 EMIT_COND_BRANCH (ins, S390_CC_GT);
4179 break;
4180 case OP_IBGE:
4181 case OP_IBGE_UN:
4182 EMIT_COND_BRANCH (ins, S390_CC_GE);
4183 break;
4184 case OP_IBLE:
4185 case OP_IBLE_UN:
4186 EMIT_COND_BRANCH (ins, S390_CC_LE);
4187 break;
4188
4189 /* floating point opcodes */
4190 case OP_R8CONST: {
4191 if (*((float *) ins->inst_p0) == 0) {
4192 s390_lzdr (code, ins->dreg);
4193 } else {
4194 s390_basr (code, s390_r13, 0);
4195 s390_j (code, 4);
4196 s390_word (code, ins->inst_p0);
4197 s390_l (code, s390_r13, 0, s390_r13, 4);
4198 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4199 }
4200 }
4201 break;
4202 case OP_R4CONST: {
4203 if (*((float *) ins->inst_p0) == 0) {
4204 s390_lzdr (code, ins->dreg);
4205 } else {
4206 s390_basr (code, s390_r13, 0);
4207 s390_j (code, 4);
4208 s390_word (code, ins->inst_p0);
4209 s390_l (code, s390_r13, 0, s390_r13, 4);
4210 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4211 }
4212 }
4213 break;
4214 case OP_STORER8_MEMBASE_REG: {
4215 if (s390_is_uimm12(ins->inst_offset)) {
4216 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
4217 } else {
4218 s390_basr (code, s390_r13, 0);
4219 s390_j (code, 4);
4220 s390_word (code, ins->inst_offset);
4221 s390_l (code, s390_r13, 0, s390_r13, 4);
4222 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
4223 }
4224 }
4225 break;
4226 case OP_LOADR8_MEMBASE: {
4227 if (s390_is_uimm12(ins->inst_offset)) {
4228 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4229 } else {
4230 s390_basr (code, s390_r13, 0);
4231 s390_j (code, 4);
4232 s390_word (code, ins->inst_offset);
4233 s390_l (code, s390_r13, 0, s390_r13, 4);
4234 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4235 }
4236 }
4237 break;
4238 case OP_STORER4_MEMBASE_REG: {
4239 if (s390_is_uimm12(ins->inst_offset)) {
4240 s390_ledbr(code, s390_f15, ins->sreg1);
4241 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
4242 } else {
4243 s390_basr (code, s390_r13, 0);
4244 s390_j (code, 4);
4245 s390_word (code, ins->inst_offset);
4246 s390_l (code, s390_r13, 0, s390_r13, 4);
4247 s390_ledbr(code, s390_f15, ins->sreg1);
4248 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
4249 }
4250 }
4251 break;
4252 case OP_LOADR4_MEMBASE: {
4253 if (s390_is_uimm12(ins->inst_offset)) {
4254 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4255 } else {
4256 s390_basr (code, s390_r13, 0);
4257 s390_j (code, 4);
4258 s390_word (code, ins->inst_offset);
4259 s390_l (code, s390_r13, 0, s390_r13, 4);
4260 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4261 }
4262 }
4263 break;
4264 case OP_ICONV_TO_R_UN: {
4265 s390_cdfbr (code, ins->dreg, ins->sreg1);
4266 s390_ltr (code, ins->sreg1, ins->sreg1);
4267 s390_jnl (code, 12);
4268 s390_basr (code, s390_r13, 0);
4269 s390_j (code, 6);
4270 s390_word (code, 0x41f00000);
4271 s390_word (code, 0);
4272 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4273 }
4274 break;
4275 case OP_ICONV_TO_R4: {
4276 s390_cdfbr (code, ins->dreg, ins->sreg1);
4277 }
4278 break;
4279 case OP_ICONV_TO_R8: {
4280 s390_cdfbr (code, ins->dreg, ins->sreg1);
4281 }
4282 break;
4283 case OP_FCONV_TO_I1:
4284 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4285 break;
4286 case OP_FCONV_TO_U1:
4287 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4288 break;
4289 case OP_FCONV_TO_I2:
4290 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4291 break;
4292 case OP_FCONV_TO_U2:
4293 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4294 break;
4295 case OP_FCONV_TO_I4:
4296 case OP_FCONV_TO_I:
4297 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4298 break;
4299 case OP_FCONV_TO_U4:
4300 case OP_FCONV_TO_U:
4301 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4302 break;
4303 case OP_FCONV_TO_I8:
4304 case OP_FCONV_TO_U8:
4305 g_assert_not_reached ();
4306 /* Implemented as helper calls */
4307 break;
4308 case OP_LCONV_TO_R_UN:
4309 g_assert_not_reached ();
4310 /* Implemented as helper calls */
4311 break;
4312 case OP_LCONV_TO_OVF_I:
4313 case OP_LCONV_TO_OVF_I4_2: {
4314 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4315 short int *o[5];
4316 s390_ltr (code, ins->sreg1, ins->sreg1);
4317 s390_jnl (code, 0); CODEPTR(code, o[0]);
4318 s390_ltr (code, ins->sreg2, ins->sreg2);
4319 s390_jnl (code, 0); CODEPTR(code, o[1]);
4320 s390_lhi (code, s390_r13, -1);
4321 s390_cr (code, ins->sreg2, s390_r13);
4322 s390_jnz (code, 0); CODEPTR(code, o[2]);
4323 s390_j (code, 0); CODEPTR(code, o[3]);
4324 PTRSLOT(code, o[0]);
4325 s390_ltr (code, ins->sreg2, ins->sreg2);
4326 s390_jz (code, 0); CODEPTR(code, o[4]);
4327 PTRSLOT(code, o[1]);
4328 PTRSLOT(code, o[2]);
4329 mono_add_patch_info (cfg, code - cfg->native_code,
4330 MONO_PATCH_INFO_EXC, "OverflowException");
4331 s390_brasl (code, s390_r14, 0);
4332 PTRSLOT(code, o[3]);
4333 PTRSLOT(code, o[4]);
4334 if (ins->dreg != ins->sreg1)
4335 s390_lr (code, ins->dreg, ins->sreg1);
4336 }
4337 break;
4338 case OP_SQRT: {
4339 s390_sqdbr (code, ins->dreg, ins->sreg1);
4340 }
4341 break;
4342 case OP_FADD: {
4343 CHECK_SRCDST_COM_F;
4344 s390_adbr (code, ins->dreg, src2);
4345 }
4346 break;
4347 case OP_FSUB: {
4348 CHECK_SRCDST_NCOM_F;
4349 s390_sdbr (code, ins->dreg, src2);
4350 }
4351 break;
4352 case OP_FMUL: {
4353 CHECK_SRCDST_COM_F;
4354 s390_mdbr (code, ins->dreg, src2);
4355 }
4356 break;
4357 case OP_FDIV: {
4358 CHECK_SRCDST_NCOM_F;
4359 s390_ddbr (code, ins->dreg, src2);
4360 }
4361 break;
4362 case OP_FNEG: {
4363 s390_lcdbr (code, ins->dreg, ins->sreg1);
4364 }
4365 break;
4366 case OP_FREM: {
4367 CHECK_SRCDST_NCOM_F;
4368 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4369 }
4370 break;
4371 case OP_FCOMPARE: {
4372 s390_cdbr (code, ins->sreg1, ins->sreg2);
4373 }
4374 break;
4375 case OP_FCEQ: {
4376 s390_cdbr (code, ins->sreg1, ins->sreg2);
4377 s390_lhi (code, ins->dreg, 1);
4378 s390_je (code, 4);
4379 s390_lhi (code, ins->dreg, 0);
4380 }
4381 break;
4382 case OP_FCLT: {
4383 s390_cdbr (code, ins->sreg1, ins->sreg2);
4384 s390_lhi (code, ins->dreg, 1);
4385 s390_jl (code, 4);
4386 s390_lhi (code, ins->dreg, 0);
4387 }
4388 break;
4389 case OP_FCLT_UN: {
4390 s390_cdbr (code, ins->sreg1, ins->sreg2);
4391 s390_lhi (code, ins->dreg, 1);
4392 s390_jlo (code, 4);
4393 s390_lhi (code, ins->dreg, 0);
4394 }
4395 break;
4396 case OP_FCGT: {
4397 s390_cdbr (code, ins->sreg1, ins->sreg2);
4398 s390_lhi (code, ins->dreg, 1);
4399 s390_jh (code, 4);
4400 s390_lhi (code, ins->dreg, 0);
4401 }
4402 break;
4403 case OP_FCGT_UN: {
4404 s390_cdbr (code, ins->sreg1, ins->sreg2);
4405 s390_lhi (code, ins->dreg, 1);
4406 s390_jho (code, 4);
4407 s390_lhi (code, ins->dreg, 0);
4408 }
4409 break;
4410 case OP_FBEQ: {
4411 short *o;
4412 s390_jo (code, 0); CODEPTR(code, o);
4413 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4414 PTRSLOT(code, o);
4415 }
4416 break;
4417 case OP_FBNE_UN:
4418 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4419 break;
4420 case OP_FBLT: {
4421 short *o;
4422 s390_jo (code, 0); CODEPTR(code, o);
4423 EMIT_COND_BRANCH (ins, S390_CC_LT);
4424 PTRSLOT(code, o);
4425 }
4426 break;
4427 case OP_FBLT_UN:
4428 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4429 break;
4430 case OP_FBGT: {
4431 short *o;
4432 s390_jo (code, 0); CODEPTR(code, o);
4433 EMIT_COND_BRANCH (ins, S390_CC_GT);
4434 PTRSLOT(code, o);
4435 }
4436 break;
4437 case OP_FBGT_UN:
4438 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4439 break;
4440 case OP_FBGE: {
4441 short *o;
4442 s390_jo (code, 0); CODEPTR(code, o);
4443 EMIT_COND_BRANCH (ins, S390_CC_GE);
4444 PTRSLOT(code, o);
4445 }
4446 break;
4447 case OP_FBGE_UN:
4448 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4449 break;
4450 case OP_FBLE: {
4451 short *o;
4452 s390_jo (code, 0); CODEPTR(code, o);
4453 EMIT_COND_BRANCH (ins, S390_CC_LE);
4454 PTRSLOT(code, o);
4455 }
4456 break;
4457 case OP_FBLE_UN:
4458 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4459 break;
4460 case OP_CKFINITE: {
4461 short *o;
4462 s390_lhi (code, s390_r13, 0x7f);
4463 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4464 s390_jz (code, 0); CODEPTR(code, o);
4465 mono_add_patch_info (cfg, code - cfg->native_code,
4466 MONO_PATCH_INFO_EXC, "ArithmeticException");
4467 s390_brasl (code, s390_r14,0);
4468 PTRSLOT(code, o);
4469 }
4470 break;
4471 case OP_S390_MOVE: {
4472 if (ins->backend.size > 0) {
4473 if (ins->backend.size <= 256) {
4474 s390_mvc (code, ins->backend.size, ins->dreg,
4475 ins->inst_offset, ins->sreg1, ins->inst_imm);
4476 } else {
4477 s390_lr (code, s390_r0, ins->dreg);
4478 if (s390_is_imm16 (ins->inst_offset)) {
4479 s390_ahi (code, s390_r0, ins->inst_offset);
4480 } else {
4481 s390_basr (code, s390_r13, 0);
4482 s390_j (code, 4);
4483 s390_word (code, ins->inst_offset);
4484 s390_a (code, s390_r0, 0, s390_r13, 4);
4485 }
4486 s390_lr (code, s390_r14, s390_r12);
4487 s390_lr (code, s390_r12, ins->sreg1);
4488 if (s390_is_imm16 (ins->inst_imm)) {
4489 s390_ahi (code, s390_r12, ins->inst_imm);
4490 } else {
4491 s390_basr (code, s390_r13, 0);
4492 s390_j (code, 4);
4493 s390_word (code, ins->inst_imm);
4494 s390_a (code, s390_r12, 0, s390_r13, 4);
4495 }
4496 s390_lr (code, s390_r1, ins->sreg1);
4497 s390_lr (code, s390_r13, s390_r1);
4498 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4499 s390_jo (code, -2);
4500 s390_lr (code, s390_r12, s390_r14);
4501 }
4502 }
4503 }
4504 break;
4505 case OP_ATOMIC_ADD_I4: {
4506 s390_lr (code, s390_r1, ins->sreg2);
4507 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4508 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4509 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4510 s390_jnz (code, -7);
4511 s390_lr (code, ins->dreg, s390_r1);
4512 }
4513 break;
4514 case OP_ATOMIC_ADD_NEW_I4: {
4515 s390_lr (code, s390_r1, ins->sreg2);
4516 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4517 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4518 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4519 s390_jnz (code, -7);
4520 s390_lr (code, ins->dreg, s390_r1);
4521 }
4522 break;
4523 case OP_ATOMIC_EXCHANGE_I4: {
4524 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4525 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4526 s390_jnz (code, -4);
4527 s390_lr (code, ins->dreg, s390_r0);
4528 }
4529 break;
4530 case OP_S390_BKCHAIN: {
4531 s390_lr (code, ins->dreg, ins->sreg1);
4532 if (s390_is_imm16 (cfg->stack_offset)) {
4533 s390_ahi (code, ins->dreg, cfg->stack_offset);
4534 } else {
4535 s390_basr (code, s390_r13, 0);
4536 s390_j (code, 6);
4537 s390_word (code, cfg->stack_offset);
4538 s390_a (code, ins->dreg, 0, s390_r13, 4);
4539 }
4540 }
4541 case OP_MEMORY_BARRIER: {
4542 }
4543 break;
4544 default:
4545 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4546 g_assert_not_reached ();
4547 }
4548
4549 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4550 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4551 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4552 g_assert_not_reached ();
4553 }
4554
4555 cpos += max_len;
4556
4557 last_ins = ins;
4558 last_offset = offset;
4559 }
4560
4561 cfg->code_len = code - cfg->native_code;
4562 }
4563
4564 /*========================= End of Function ========================*/
4565
4566 /*------------------------------------------------------------------*/
4567 /* */
4568 /* Name - mono_arch_register_lowlevel_calls */
4569 /* */
4570 /* Function - Register routines to help with --trace operation. */
4571 /* */
4572 /*------------------------------------------------------------------*/
4573
4574 void
4575 mono_arch_register_lowlevel_calls (void)
4576 {
4577 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4578 }
4579
4580 /*========================= End of Function ========================*/
4581
4582 /*------------------------------------------------------------------*/
4583 /* */
4584 /* Name - mono_arch_patch_code */
4585 /* */
4586 /* Function - Process the patch data created during the */
4587 /* instruction build process. This resolves jumps, */
4588 /* calls, variables etc. */
4589 /* */
4590 /*------------------------------------------------------------------*/
4591
4592 void
4593 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4594 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4595 {
4596 MonoJumpInfo *patch_info;
4597
4598 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4599 unsigned char *ip = patch_info->ip.i + code;
4600 gconstpointer target = NULL;
4601
4602 target = mono_resolve_patch_target (method, domain, code,
4603 patch_info, run_cctors);
4604
4605 switch (patch_info->type) {
4606 case MONO_PATCH_INFO_IP:
4607 case MONO_PATCH_INFO_EXC_NAME:
4608 case MONO_PATCH_INFO_LDSTR:
4609 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4610 case MONO_PATCH_INFO_LDTOKEN:
4611 case MONO_PATCH_INFO_EXC:
4612 continue;
4613 case MONO_PATCH_INFO_SWITCH:
4614 /*----------------------------------*/
4615 /* ip points at the basr r13,0/j +4 */
4616 /* instruction the vtable value */
4617 /* follows this (i.e. ip+6) */
4618 /*----------------------------------*/
4619 *((gconstpointer *)(ip+6)) = target;
4620 target = NULL;
4621 continue;
4622 case MONO_PATCH_INFO_METHODCONST:
4623 case MONO_PATCH_INFO_CLASS:
4624 case MONO_PATCH_INFO_IMAGE:
4625 case MONO_PATCH_INFO_FIELD:
4626 case MONO_PATCH_INFO_IID:
4627 target = S390_RELATIVE(target, ip);
4628 continue;
4629 case MONO_PATCH_INFO_R4:
4630 case MONO_PATCH_INFO_R8:
4631 case MONO_PATCH_INFO_METHOD_REL:
4632 g_assert_not_reached ();
4633 continue;
4634 default:
4635 target = S390_RELATIVE(target, ip);
4636 ip += 2;
4637 }
4638 s390_patch (ip, (guint32) target);
4639 }
4640 }
4641
4642 /*========================= End of Function ========================*/
4643
4644 /*------------------------------------------------------------------*/
4645 /* */
4646 /* Name - emit_load_volatile_registers */
4647 /* */
4648 /* Function - Create the instruction sequence for loading the */
4649 /* parameter registers for use with the 'tail' op. */
4650 /* */
4651 /* The register loading operations performed here */
4652 /* are the mirror of the store operations performed */
4653 /* in mono_arch_emit_prolog and need to be kept in */
4654 /* synchronization with it. */
4655 /* */
4656 /*------------------------------------------------------------------*/
4657
4658 guint8 *
4659 emit_load_volatile_registers (guint8 * code, MonoCompile *cfg)
4660 {
4661 MonoMethod *method = cfg->method;
4662 MonoMethodSignature *sig;
4663 MonoInst *inst;
4664 int pos, i;
4665 CallInfo *cinfo;
4666
4667 sig = mono_method_signature (method);
4668 pos = 0;
4669
4670 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4671
4672 if (cinfo->struct_ret) {
4673 ArgInfo *ainfo = &cinfo->ret;
4674 inst = cfg->vret_addr;
4675 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4676 }
4677
4678 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4679 ArgInfo *ainfo = cinfo->args + i;
4680 inst = cfg->args [pos];
4681
4682 if (inst->opcode == OP_REGVAR) {
4683 if (ainfo->regtype == RegTypeGeneral)
4684 s390_lr (code, ainfo->reg, inst->dreg);
4685 else if (ainfo->regtype == RegTypeFP) {
4686 if (inst->dreg != ainfo->reg) {
4687 if (ainfo->size == 4) {
4688 s390_ldebr (code, ainfo->reg, inst->dreg);
4689 } else {
4690 s390_ldr (code, ainfo->reg, inst->dreg);
4691 }
4692 }
4693 }
4694 else if (ainfo->regtype == RegTypeBase) {
4695 } else
4696 g_assert_not_reached ();
4697 } else {
4698 if (ainfo->regtype == RegTypeGeneral) {
4699 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4700 g_assert_not_reached();
4701 switch (ainfo->size) {
4702 case 1:
4703 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4704 break;
4705 case 2:
4706 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4707 break;
4708 case 8:
4709 s390_lm (code, ainfo->reg, ainfo->reg + 1,
4710 inst->inst_basereg, inst->inst_offset);
4711 break;
4712 default:
4713 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4714 }
4715 } else if (ainfo->regtype == RegTypeBase) {
4716 } else if (ainfo->regtype == RegTypeFP) {
4717 if (ainfo->size == 8)
4718 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4719 else if (ainfo->size == 4)
4720 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4721 else
4722 g_assert_not_reached ();
4723 } else if (ainfo->regtype == RegTypeStructByVal) {
4724 if (ainfo->reg != STK_BASE) {
4725 switch (ainfo->size) {
4726 case 1:
4727 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4728 break;
4729 case 2:
4730 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4731 break;
4732 case 4:
4733 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4734 break;
4735 case 8:
4736 s390_lm (code, ainfo->reg, ainfo->reg+1, inst->inst_basereg, inst->inst_offset);
4737 break;
4738 }
4739 }
4740 } else if (ainfo->regtype == RegTypeStructByAddr) {
4741 if (ainfo->reg != STK_BASE) {
4742 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4743 }
4744 } else
4745 g_assert_not_reached ();
4746 }
4747 pos++;
4748 }
4749
4750 return code;
4751 }
4752
4753 /*========================= End of Function ========================*/
4754
4755 /*------------------------------------------------------------------*/
4756 /* */
4757 /* Name - mono_arch_emit_prolog */
4758 /* */
4759 /* Function - Create the instruction sequence for a function */
4760 /* prolog. */
4761 /* */
4762 /*------------------------------------------------------------------*/
4763
4764 guint8 *
4765 mono_arch_emit_prolog (MonoCompile *cfg)
4766 {
4767 MonoMethod *method = cfg->method;
4768 MonoBasicBlock *bb;
4769 MonoMethodSignature *sig;
4770 MonoInst *inst;
4771 int alloc_size, pos, max_offset, i;
4772 guint8 *code;
4773 CallInfo *cinfo;
4774 int tracing = 0;
4775 int lmfOffset; \
4776
4777 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4778 tracing = 1;
4779
4780 cfg->code_size = 1024;
4781 cfg->native_code = code = g_malloc (cfg->code_size);
4782
4783 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4784
4785 if (cfg->arch.bkchain_reg != -1)
4786 s390_lr (code, cfg->arch.bkchain_reg, STK_BASE);
4787
4788 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4789 cfg->used_int_regs |= 1 << 11;
4790 }
4791
4792 alloc_size = cfg->stack_offset;
4793
4794 cfg->stack_usage = alloc_size;
4795 s390_lr (code, s390_r11, STK_BASE);
4796 if (s390_is_uimm16 (alloc_size)) {
4797 s390_ahi (code, STK_BASE, -alloc_size);
4798 } else {
4799 int stackSize = alloc_size;
4800 while (stackSize > 32767) {
4801 s390_ahi (code, STK_BASE, -32767);
4802 stackSize -= 32767;
4803 }
4804 s390_ahi (code, STK_BASE, -stackSize);
4805 }
4806 s390_st (code, s390_r11, 0, STK_BASE, 0);
4807
4808 if (cfg->frame_reg != STK_BASE)
4809 s390_lr (code, s390_r11, STK_BASE);
4810
4811 /* compute max_offset in order to use short forward jumps
4812 * we always do it on s390 because the immediate displacement
4813 * for jumps is too small
4814 */
4815 max_offset = 0;
4816 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4817 MonoInst *ins = bb->code;
4818 bb->max_offset = max_offset;
4819
4820 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4821 max_offset += 6;
4822
4823 MONO_BB_FOR_EACH_INS (bb, ins)
4824 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4825 }
4826
4827 /* load arguments allocated to register from the stack */
4828 sig = mono_method_signature (method);
4829 pos = 0;
4830
4831 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4832
4833 if (cinfo->struct_ret) {
4834 ArgInfo *ainfo = &cinfo->ret;
4835 inst = cfg->vret_addr;
4836 inst->backend.size = ainfo->vtsize;
4837 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4838 }
4839
4840 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4841 ArgInfo *ainfo = cinfo->args + i;
4842 inst = cfg->args [pos];
4843
4844 if (inst->opcode == OP_VTARG_ADDR)
4845 inst = inst->inst_left;
4846
4847 if (inst->opcode == OP_REGVAR) {
4848 if (ainfo->regtype == RegTypeGeneral)
4849 s390_lr (code, inst->dreg, ainfo->reg);
4850 else if (ainfo->regtype == RegTypeFP) {
4851 if (inst->dreg != ainfo->reg) {
4852 if (ainfo->size == 4) {
4853 s390_ledbr (code, inst->dreg, ainfo->reg);
4854 } else {
4855 s390_ldr (code, inst->dreg, ainfo->reg);
4856 }
4857 }
4858 }
4859 else if (ainfo->regtype == RegTypeBase) {
4860 s390_lr (code, s390_r13, STK_BASE);
4861 s390_ahi (code, s390_r13, alloc_size);
4862 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4863 } else
4864 g_assert_not_reached ();
4865
4866 if (cfg->verbose_level > 2)
4867 g_print ("Argument %d assigned to register %s\n",
4868 pos, mono_arch_regname (inst->dreg));
4869 } else {
4870 if (ainfo->regtype == RegTypeGeneral) {
4871 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4872 g_assert_not_reached();
4873 switch (ainfo->size) {
4874 case 1:
4875 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4876 break;
4877 case 2:
4878 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4879 break;
4880 case 8:
4881 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4882 inst->inst_basereg, inst->inst_offset);
4883 break;
4884 default:
4885 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4886 }
4887 } else if (ainfo->regtype == RegTypeBase) {
4888 } else if (ainfo->regtype == RegTypeFP) {
4889 if (ainfo->size == 8)
4890 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4891 else if (ainfo->size == 4)
4892 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4893 else
4894 g_assert_not_reached ();
4895 } else if (ainfo->regtype == RegTypeStructByVal) {
4896 int doffset = inst->inst_offset;
4897 int reg;
4898 if (ainfo->reg != STK_BASE)
4899 reg = ainfo->reg;
4900 else {
4901 reg = s390_r0;
4902 s390_lr (code, s390_r13, STK_BASE);
4903 s390_ahi (code, s390_r13, alloc_size);
4904 }
4905 switch (ainfo->size) {
4906 case 1:
4907 if (ainfo->reg == STK_BASE)
4908 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4909 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4910 break;
4911 case 2:
4912 if (ainfo->reg == STK_BASE)
4913 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4914 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4915 break;
4916 case 4:
4917 if (ainfo->reg == STK_BASE)
4918 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4919 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4920 break;
4921 case 8:
4922 if (ainfo->reg == STK_BASE)
4923 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4924 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4925 break;
4926 }
4927 } else if (ainfo->regtype == RegTypeStructByAddr) {
4928 if (ainfo->reg != STK_BASE)
4929 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4930 } else
4931 g_assert_not_reached ();
4932 }
4933 pos++;
4934 }
4935
4936 if (method->save_lmf) {
4937 /*---------------------------------------------------------------*/
4938 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4939 /*---------------------------------------------------------------*/
4940 lmfOffset = alloc_size - sizeof(MonoLMF);
4941
4942 s390_lr (code, s390_r13, cfg->frame_reg);
4943 if (s390_is_uimm16(lmfOffset))
4944 s390_ahi (code, s390_r13, lmfOffset);
4945 else {
4946 s390_basr (code, s390_r14, 0);
4947 s390_j (code, 4);
4948 s390_word (code, lmfOffset);
4949 s390_a (code, s390_r13, 0, s390_r14, 4);
4950 }
4951
4952 /*---------------------------------------------------------------*/
4953 /* Preserve the parameter registers while we fix up the lmf */
4954 /*---------------------------------------------------------------*/
4955 s390_stm (code, s390_r2, s390_r6, s390_r13,
4956 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4957
4958 /*---------------------------------------------------------------*/
4959 /* On return from this call r2 have the address of the &lmf */
4960 /*---------------------------------------------------------------*/
4961 mono_add_patch_info (cfg, code - cfg->native_code,
4962 MONO_PATCH_INFO_INTERNAL_METHOD,
4963 (gpointer)"mono_get_lmf_addr");
4964 s390_brasl (code, s390_r14, 0);
4965
4966 /*---------------------------------------------------------------*/
4967 /* Set lmf.lmf_addr = jit_tls->lmf */
4968 /*---------------------------------------------------------------*/
4969 s390_st (code, s390_r2, 0, s390_r13,
4970 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4971
4972 /*---------------------------------------------------------------*/
4973 /* Get current lmf */
4974 /*---------------------------------------------------------------*/
4975 s390_l (code, s390_r0, 0, s390_r2, 0);
4976
4977 /*---------------------------------------------------------------*/
4978 /* Set our lmf as the current lmf */
4979 /*---------------------------------------------------------------*/
4980 s390_st (code, s390_r13, 0, s390_r2, 0);
4981
4982 /*---------------------------------------------------------------*/
4983 /* Have our lmf.previous_lmf point to the last lmf */
4984 /*---------------------------------------------------------------*/
4985 s390_st (code, s390_r0, 0, s390_r13,
4986 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4987
4988 /*---------------------------------------------------------------*/
4989 /* save method info */
4990 /*---------------------------------------------------------------*/
4991 s390_basr (code, s390_r1, 0);
4992 s390_j (code, 4);
4993 s390_word (code, method);
4994 s390_l (code, s390_r1, 0, s390_r1, 4);
4995 s390_st (code, s390_r1, 0, s390_r13,
4996 G_STRUCT_OFFSET(MonoLMF, method));
4997
4998 /*---------------------------------------------------------------*/
4999 /* save the current IP */
5000 /*---------------------------------------------------------------*/
5001 s390_st (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
5002 s390_basr (code, s390_r1, 0);
5003 s390_la (code, s390_r1, 0, s390_r1, 0);
5004 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
5005
5006 /*---------------------------------------------------------------*/
5007 /* Save general and floating point registers */
5008 /*---------------------------------------------------------------*/
5009 s390_stm (code, s390_r2, s390_r12, s390_r13,
5010 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
5011 for (i = 0; i < 16; i++) {
5012 s390_std (code, i, 0, s390_r13,
5013 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
5014 }
5015
5016 /*---------------------------------------------------------------*/
5017 /* Restore the parameter registers now that we've set up the lmf */
5018 /*---------------------------------------------------------------*/
5019 s390_lm (code, s390_r2, s390_r6, s390_r13,
5020 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
5021 }
5022
5023 if (tracing)
5024 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
5025
5026 cfg->code_len = code - cfg->native_code;
5027
5028 g_assert (cfg->code_len < cfg->code_size);
5029
5030 return code;
5031 }
5032
5033 /*========================= End of Function ========================*/
5034
5035 /*------------------------------------------------------------------*/
5036 /* */
5037 /* Name - mono_arch_emit_epilog */
5038 /* */
5039 /* Function - Emit the instructions for a function epilog. */
5040 /* */
5041 /*------------------------------------------------------------------*/
5042
5043 void
5044 mono_arch_emit_epilog (MonoCompile *cfg)
5045 {
5046 MonoMethod *method = cfg->method;
5047 int tracing = 0;
5048 guint8 *code;
5049 int max_epilog_size = 96;
5050
5051 if (cfg->method->save_lmf)
5052 max_epilog_size += 128;
5053
5054 if (mono_jit_trace_calls != NULL)
5055 max_epilog_size += 128;
5056
5057 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5058 max_epilog_size += 128;
5059
5060 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
5061 cfg->code_size *= 2;
5062 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5063 mono_jit_stats.code_reallocs++;
5064 }
5065
5066 code = cfg->native_code + cfg->code_len;
5067
5068 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5069 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5070 tracing = 1;
5071 }
5072
5073 if (method->save_lmf)
5074 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
5075
5076 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
5077 s390_l (code, STK_BASE, 0, STK_BASE, 0);
5078 else
5079 code = backUpStackPtr(cfg, code, STK_BASE);
5080
5081 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5082 s390_br (code, s390_r14);
5083
5084 cfg->code_len = code - cfg->native_code;
5085
5086 g_assert (cfg->code_len < cfg->code_size);
5087
5088 }
5089
5090 /*========================= End of Function ========================*/
5091
5092 /*------------------------------------------------------------------*/
5093 /* */
5094 /* Name - mono_arch_emit_exceptions */
5095 /* */
5096 /* Function - Emit the blocks to handle exception conditions. */
5097 /* */
5098 /*------------------------------------------------------------------*/
5099
5100 void
5101 mono_arch_emit_exceptions (MonoCompile *cfg)
5102 {
5103 MonoJumpInfo *patch_info;
5104 guint8 *code;
5105 int nThrows = 0,
5106 exc_count = 0,
5107 iExc;
5108 guint32 code_size;
5109 MonoClass *exc_classes [MAX_EXC];
5110 guint8 *exc_throw_start [MAX_EXC];
5111
5112 for (patch_info = cfg->patch_info;
5113 patch_info;
5114 patch_info = patch_info->next) {
5115 if (patch_info->type == MONO_PATCH_INFO_EXC)
5116 exc_count++;
5117 }
5118
5119 code_size = exc_count * 26;
5120
5121 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
5122 cfg->code_size *= 2;
5123 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5124 mono_jit_stats.code_reallocs++;
5125 }
5126
5127 code = cfg->native_code + cfg->code_len;
5128
5129 /*---------------------------------------------------------------------*/
5130 /* Add code to raise exceptions */
5131 /*---------------------------------------------------------------------*/
5132 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5133 switch (patch_info->type) {
5134 case MONO_PATCH_INFO_EXC: {
5135 guint8 *ip = patch_info->ip.i + cfg->native_code;
5136 MonoClass *exc_class;
5137 guint32 throw_ip;
5138
5139 /*-----------------------------------------------------*/
5140 /* Patch the branch in epilog to come here */
5141 /*-----------------------------------------------------*/
5142 s390_patch (ip + 2, (guint32) (S390_RELATIVE(code,ip)));
5143
5144 exc_class = mono_class_from_name (mono_defaults.corlib,
5145 "System",
5146 patch_info->data.name);
5147 g_assert (exc_class);
5148 throw_ip = patch_info->ip.i;
5149
5150 for (iExc = 0; iExc < nThrows; ++iExc)
5151 if (exc_classes [iExc] == exc_class)
5152 break;
5153
5154 if (iExc < nThrows) {
5155 s390_jcl (code, S390_CC_UN, (guint32) exc_throw_start [iExc]);
5156 patch_info->type = MONO_PATCH_INFO_NONE;
5157 } else {
5158
5159 if (nThrows < MAX_EXC) {
5160 exc_classes [nThrows] = exc_class;
5161 exc_throw_start [nThrows] = code;
5162 }
5163
5164 /*---------------------------------------------*/
5165 /* Patch the parameter passed to the handler */
5166 /*---------------------------------------------*/
5167 s390_basr (code, s390_r13, 0);
5168 s390_j (code, 4);
5169 s390_word (code, patch_info->data.target);
5170 /*---------------------------------------------*/
5171 /* Load return address & parameter register */
5172 /*---------------------------------------------*/
5173 s390_larl (code, s390_r14, (gsize)S390_RELATIVE((patch_info->ip.i +
5174 cfg->native_code + 8), code));
5175 s390_l (code, s390_r2, 0, s390_r13, 4);
5176 /*---------------------------------------------*/
5177 /* Reuse the current patch to set the jump */
5178 /*---------------------------------------------*/
5179 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5180 patch_info->data.name = "mono_arch_throw_exception_by_name";
5181 patch_info->ip.i = code - cfg->native_code;
5182 s390_jcl (code, S390_CC_UN, 0);
5183 }
5184 break;
5185 }
5186 default:
5187 /* do nothing */
5188 break;
5189 }
5190 }
5191
5192 cfg->code_len = code - cfg->native_code;
5193
5194 g_assert (cfg->code_len < cfg->code_size);
5195
5196 }
5197
5198 /*========================= End of Function ========================*/
5199
5200 /*------------------------------------------------------------------*/
5201 /* */
5202 /* Name - mono_arch_setup_jit_tls_data */
5203 /* */
5204 /* Function - Setup the JIT's Thread Level Specific Data. */
5205 /* */
5206 /*------------------------------------------------------------------*/
5207
5208 void
5209 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
5210 {
5211
5212 if (!tls_offset_inited) {
5213 tls_offset_inited = TRUE;
5214
5215 #if HAVE_KW_THREAD
5216 # if 0
5217 __asm__ ("\tear\t%r1,0\n"
5218 "\tlr\t%0,%3\n"
5219 "\tsr\t%0,%r1\n"
5220 "\tlr\t%1,%4\n"
5221 "\tsr\t%1,%r1\n"
5222 "\tlr\t%2,%5\n"
5223 "\tsr\t%2,%r1\n"
5224 : "=r" (appdomain_tls_offset),
5225 "=r" (thread_tls_offset),
5226 "=r" (lmf_tls_offset)
5227 : "r" (&tls_appdomain),
5228 "r" (&tls_current_object),
5229 "r" (&mono_lmf_addr)
5230 : "1", "cc");
5231 # endif
5232 #endif
5233 }
5234
5235 if (!lmf_addr_key_inited) {
5236 lmf_addr_key_inited = TRUE;
5237 pthread_key_create (&lmf_addr_key, NULL);
5238 }
5239 pthread_setspecific (lmf_addr_key, &tls->lmf);
5240
5241 }
5242
5243 /*========================= End of Function ========================*/
5244
5245 /*------------------------------------------------------------------*/
5246 /* */
5247 /* Name - mono_arch_free_jit_tls_data */
5248 /* */
5249 /* Function - Free tls data. */
5250 /* */
5251 /*------------------------------------------------------------------*/
5252
5253 void
5254 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5255 {
5256
5257 }
5258
5259 /*========================= End of Function ========================*/
5260
5261 /*------------------------------------------------------------------*/
5262 /* */
5263 /* Name - mono_arch_emit_this_vret_args */
5264 /* */
5265 /* Function - */
5266 /* */
5267 /*------------------------------------------------------------------*/
5268
5269 void
5270 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
5271 {
5272 int this_dreg = s390_r2;
5273
5274 if (vt_reg != -1)
5275 this_dreg = s390_r3;
5276
5277 /* add the this argument */
5278 if (this_reg != -1) {
5279 MonoInst *this;
5280 MONO_INST_NEW (cfg, this, OP_MOVE);
5281 this->type = this_type;
5282 this->sreg1 = this_reg;
5283 this->dreg = mono_regstate_next_int (cfg->rs);
5284 mono_bblock_add_inst (cfg->cbb, this);
5285 mono_call_inst_add_outarg_reg (cfg, inst, this->dreg, this_dreg, FALSE);
5286 }
5287
5288 if (vt_reg != -1) {
5289 MonoInst *vtarg;
5290 MONO_INST_NEW (cfg, vtarg, OP_MOVE);
5291 vtarg->type = STACK_MP;
5292 vtarg->sreg1 = vt_reg;
5293 vtarg->dreg = mono_regstate_next_int (cfg->rs);
5294 mono_bblock_add_inst (cfg->cbb, vtarg);
5295 mono_call_inst_add_outarg_reg (cfg, inst, vtarg->dreg, s390_r2, FALSE);
5296 }
5297 }
5298
5299 /*========================= End of Function ========================*/
5300
5301 /*------------------------------------------------------------------*/
5302 /* */
5303 /* Name - mono_arch_get_inst_for_method */
5304 /* */
5305 /* Function - Check for opcodes we can handle directly in */
5306 /* hardware. */
5307 /* */
5308 /*------------------------------------------------------------------*/
5309
5310 MonoInst*
5311 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
5312 MonoMethodSignature *fsig, MonoInst **args)
5313 {
5314 MonoInst *ins = NULL;
5315
5316 if (cmethod->klass == mono_defaults.math_class) {
5317 if (strcmp (cmethod->name, "Sqrt") == 0) {
5318 MONO_INST_NEW (cfg, ins, OP_SQRT);
5319 ins->inst_i0 = args [0];
5320 }
5321 }
5322
5323 return ins;
5324 }
5325
5326 /*========================= End of Function ========================*/
5327
5328 /*------------------------------------------------------------------*/
5329 /* */
5330 /* Name - mono_arch_emit_inst_for_method */
5331 /* */
5332 /*------------------------------------------------------------------*/
5333
5334 MonoInst*
5335 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5336 {
5337 return NULL;
5338 }
5339
5340 /*========================= End of Function ========================*/
5341
5342 void
5343 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5344 {
5345 switch (ins->opcode) {
5346 case OP_ISUB_OVF:
5347 ins->opcode = OP_S390_ISUB_OVF;
5348 break;
5349 case OP_ISUB_OVF_UN:
5350 ins->opcode = OP_S390_ISUB_OVF_UN;
5351 break;
5352 case OP_IADD_OVF:
5353 ins->opcode = OP_S390_IADD_OVF;
5354 break;
5355 case OP_IADD_OVF_UN:
5356 ins->opcode = OP_S390_IADD_OVF_UN;
5357 break;
5358 default:
5359 break;
5360 }
5361 }
5362
5363 /*========================= End of Function ========================*/
5364
5365 /*------------------------------------------------------------------*/
5366 /* */
5367 /* Name - mono_arch_decompose_long_opts */
5368 /* */
5369 /*------------------------------------------------------------------*/
5370
5371 void
5372 mono_arch_decompose_long_opts (MonoCompile *cfg, MonoInst *ins)
5373 {
5374 // The generic code seems to work for OP_LSUB fine on s390, why is a different
5375 // implementation needed ? gcc also seems to use the different implementation.
5376 // FIXME: What about the other OP_L opcodes below ?
5377
5378 switch (ins->opcode) {
5379 case OP_LADD_OVF:
5380 case OP_LADD_OVF_UN:
5381 case OP_LSUB_OVF:
5382 case OP_LSUB_OVF_UN: {
5383 int opcode = 0;
5384
5385 switch (ins->opcode) {
5386 case OP_LADD:
5387 opcode = OP_S390_LADD;
5388 break;
5389 case OP_LADD_OVF:
5390 opcode = OP_S390_LADD_OVF;
5391 break;
5392 case OP_LADD_OVF_UN:
5393 opcode = OP_S390_LADD_OVF_UN;
5394 break;
5395 case OP_LSUB:
5396 opcode = OP_S390_LSUB;
5397 break;
5398 case OP_LSUB_OVF:
5399 opcode = OP_S390_LSUB_OVF;
5400 break;
5401 case OP_LSUB_OVF_UN:
5402 opcode = OP_S390_LSUB_OVF_UN;
5403 break;
5404 default:
5405 g_assert_not_reached ();
5406 }
5407
5408 /* These hard regs make ssa crazy */
5409 cfg->disable_ssa = TRUE;
5410 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r0, ins->sreg1 + 1);
5411 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r1, ins->sreg1 + 2);
5412 MONO_EMIT_NEW_BIALU (cfg, opcode, ins->dreg, ins->sreg2 + 1, ins->sreg2 + 2);
5413 NULLIFY_INS (ins);
5414 break;
5415 }
5416 case OP_LADD_IMM: {
5417 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5418 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5419 MONO_EMIT_NEW_BIALU (cfg, OP_LADD, ins->dreg, ins->sreg1, dreg);
5420 NULLIFY_INS (ins);
5421 break;
5422 }
5423 case OP_LSUB_IMM: {
5424 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5425 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5426 MONO_EMIT_NEW_BIALU (cfg, OP_LSUB, ins->dreg, ins->sreg1, dreg);
5427 NULLIFY_INS (ins);
5428 break;
5429 }
5430 case OP_LNEG: {
5431 MONO_EMIT_NEW_BIALU (cfg, OP_S390_LNEG, ins->dreg, ins->sreg1 + 1, ins->sreg1 + 2);
5432 NULLIFY_INS (ins);
5433 break;
5434 }
5435 case OP_ISUB_OVF:
5436 ins->opcode = OP_S390_ISUB_OVF;
5437 break;
5438 case OP_ISUB_OVF_UN:
5439 ins->opcode = OP_S390_ISUB_OVF_UN;
5440 break;
5441 default:
5442 break;
5443 }
5444 }
5445
5446 /*========================= End of Function ========================*/
5447
5448 /*------------------------------------------------------------------*/
5449 /* */
5450 /* Name - mono_arch_print_tree */
5451 /* */
5452 /* Function - Print platform-specific opcode details. */
5453 /* */
5454 /* Returns - 1 - opcode details have been printed */
5455 /* 0 - opcode details have not been printed */
5456 /* */
5457 /*------------------------------------------------------------------*/
5458
5459 gboolean
5460 mono_arch_print_tree (MonoInst *tree, int arity)
5461 {
5462 gboolean done;
5463
5464 switch (tree->opcode) {
5465 case OP_S390_LOADARG:
5466 case OP_S390_ARGREG:
5467 case OP_S390_ARGPTR:
5468 printf ("[0x%lx(%s)]", tree->inst_offset,
5469 mono_arch_regname (tree->inst_basereg));
5470 done = 1;
5471 break;
5472 case OP_S390_STKARG:
5473 printf ("[0x%lx(previous_frame)]",
5474 tree->inst_offset);
5475 done = 1;
5476 break;
5477 case OP_S390_MOVE:
5478 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5479 tree->inst_offset, tree->backend.size,
5480 mono_arch_regname(tree->dreg), tree->inst_imm,
5481 mono_arch_regname(tree->sreg1));
5482 done = 1;
5483 break;
5484 case OP_S390_SETF4RET:
5485 printf ("[%s,%s]",
5486 mono_arch_fregname (tree->dreg),
5487 mono_arch_fregname (tree->sreg1));
5488 done = 1;
5489 break;
5490 case OP_TLS_GET:
5491 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5492 tree->inst_imm,
5493 mono_arch_regname (tree->sreg1));
5494 done = 1;
5495 break;
5496 case OP_S390_BKCHAIN:
5497 printf ("[previous_frame(%s)]",
5498 mono_arch_regname (tree->sreg1));
5499 done = 1;
5500 break;
5501 default:
5502 done = 0;
5503 }
5504 return (done);
5505 }
5506
5507 /*========================= End of Function ========================*/
5508
5509 /*------------------------------------------------------------------*/
5510 /* */
5511 /* Name - mono_arch_regalloc_cost */
5512 /* */
5513 /* Function - Determine the cost, in the number of memory */
5514 /* references, of the action of allocating the var- */
5515 /* iable VMV into a register during global register */
5516 /* allocation. */
5517 /* */
5518 /* Returns - Cost */
5519 /* */
5520 /*------------------------------------------------------------------*/
5521
5522 guint32
5523 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5524 {
5525 /* FIXME: */
5526 return 2;
5527 }
5528
5529 /*========================= End of Function ========================*/
5530
5531 /*------------------------------------------------------------------*/
5532 /* */
5533 /* Name - mono_arch_get_domain_intrinsic */
5534 /* */
5535 /* Function - */
5536 /* */
5537 /* Returns - */
5538 /* */
5539 /*------------------------------------------------------------------*/
5540
5541 MonoInst *
5542 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5543 {
5544 MonoInst *ins;
5545
5546 if (appdomain_tls_offset == -1)
5547 return NULL;
5548
5549 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5550 ins->inst_offset = appdomain_tls_offset;
5551 return (ins);
5552 }
5553
5554 /*========================= End of Function ========================*/
5555
5556 /*------------------------------------------------------------------*/
5557 /* */
5558 /* Name - mono_arch_get_thread_intrinsic */
5559 /* */
5560 /* Function - */
5561 /* */
5562 /* Returns - */
5563 /* */
5564 /*------------------------------------------------------------------*/
5565
5566 MonoInst *
5567 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5568 {
5569 MonoInst *ins;
5570
5571 if (thread_tls_offset == -1)
5572 return NULL;
5573
5574 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5575 ins->inst_offset = thread_tls_offset;
5576 return (ins);
5577 }
5578
5579 /*========================= End of Function ========================*/
5580
5581 /*------------------------------------------------------------------*/
5582 /* */
5583 /* Name - mono_arch_flush_register_windows */
5584 /* */
5585 /* Function - */
5586 /* */
5587 /* Returns - */
5588 /* */
5589 /*------------------------------------------------------------------*/
5590
5591 void
5592 mono_arch_flush_register_windows (void)
5593 {
5594 }
5595
5596 /*========================= End of Function ========================*/
5597
5598 /*------------------------------------------------------------------*/
5599 /* */
5600 /* Name - mono_arch_get_lmf_addr */
5601 /* */
5602 /* Function - */
5603 /* */
5604 /* Returns - */
5605 /* */
5606 /*------------------------------------------------------------------*/
5607
5608 gpointer
5609 mono_arch_get_lmf_addr (void)
5610 {
5611 return pthread_getspecific (lmf_addr_key);
5612 }
5613
5614
5615 /*========================= End of Function ========================*/
5616
5617 /*------------------------------------------------------------------*/
5618 /* */
5619 /* Name - mono_arch_get_patch_offset */
5620 /* */
5621 /* Function - Dummy entry point until s390x supports aot. */
5622 /* */
5623 /* Returns - Offset for patch. */
5624 /* */
5625 /*------------------------------------------------------------------*/
5626
5627 guint32
5628 mono_arch_get_patch_offset (guint8 *code)
5629 {
5630 return 0;
5631 }
5632
5633 /*========================= End of Function ========================*/
5634
5635 gpointer
5636 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5637 {
5638 /* FIXME: implement */
5639 g_assert_not_reached ();
5640 return NULL;
5641 }
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