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Make sure x86 ATOMIC_CAS doesn't overwrite its own operands.
[mono-debugger.git] / mono / mini / mini-s390.c
blob181a7ea0e39bc7b77bc230faa87ea71e50fa1b1a
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_MOVE(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_VTR(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_VTS(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_MOVE (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 "cpu-s390.h"
267 #include "jit-icalls.h"
268 #include "ir-emit.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 *);
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 = mono_class_enum_basetype (type->data.klass)->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 = mono_class_enum_basetype (type->data.klass);
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 (mono_class_enum_basetype (t->data.klass));
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 = mono_class_enum_basetype (klass)->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 switch (mono_type_get_underlying_type (sig->ret)->type) {
1797 case MONO_TYPE_VOID:
1798 break;
1799 default:
1800 cfg->ret->opcode = OP_REGVAR;
1801 cfg->ret->dreg = s390_r2;
1802 break;
1803 }
1804 }
1805
1806 /*--------------------------------------------------------------*/
1807 /* local vars are at a positive offset from the stack pointer */
1808 /* also note that if the function uses alloca, we use s390_r11 */
1809 /* to point at the local variables. */
1810 /* add parameter area size for called functions */
1811 /*--------------------------------------------------------------*/
1812 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1813 cfg->sig_cookie = 0;
1814
1815 if (cinfo->struct_ret) {
1816 inst = cfg->vret_addr;
1817 offset = S390_ALIGN(offset, sizeof(gpointer));
1818 inst->inst_offset = offset;
1819 inst->opcode = OP_REGOFFSET;
1820 inst->inst_basereg = frame_reg;
1821 offset += sizeof(gpointer);
1822 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1823 printf ("vret_addr =");
1824 mono_print_ins (cfg->vret_addr);
1825 }
1826 }
1827
1828 if (sig->hasthis) {
1829 inst = cfg->args [0];
1830 if (inst->opcode != OP_REGVAR) {
1831 inst->opcode = OP_REGOFFSET;
1832 inst->inst_basereg = frame_reg;
1833 offset = S390_ALIGN(offset, sizeof(gpointer));
1834 inst->inst_offset = offset;
1835 offset += sizeof (gpointer);
1836 }
1837 curinst = sArg = 1;
1838 } else {
1839 curinst = sArg = 0;
1840 }
1841
1842 eArg = sig->param_count + sArg;
1843
1844 if (sig->call_convention == MONO_CALL_VARARG)
1845 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1846
1847 for (iParm = sArg; iParm < eArg; ++iParm) {
1848 inst = cfg->args [curinst];
1849 if (inst->opcode != OP_REGVAR) {
1850 switch (cinfo->args[iParm].regtype) {
1851 case RegTypeStructByAddr : {
1852 MonoInst *indir;
1853
1854 size = sizeof (gpointer);
1855
1856 if (cinfo->args [iParm].reg == STK_BASE) {
1857 cfg->arch.bkchain_reg = s390_r12;
1858 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1859
1860 inst->opcode = OP_REGOFFSET;
1861 inst->inst_basereg = cfg->arch.bkchain_reg;
1862 inst->inst_offset = cinfo->args [iParm].offset;
1863 } else {
1864 inst->opcode = OP_REGOFFSET;
1865 inst->inst_basereg = frame_reg;
1866 inst->inst_offset = S390_ALIGN(offset, sizeof (gpointer));
1867 }
1868
1869 /* Add a level of indirection */
1870 MONO_INST_NEW (cfg, indir, 0);
1871 *indir = *inst;
1872 inst->opcode = OP_VTARG_ADDR;
1873 inst->inst_left = indir;
1874 }
1875 break;
1876 case RegTypeStructByVal :
1877 size = cinfo->args[iParm].size;
1878 offset = S390_ALIGN(offset, size);
1879 inst->opcode = OP_REGOFFSET;
1880 inst->inst_basereg = frame_reg;
1881 inst->inst_offset = S390_ALIGN (offset, size);
1882 break;
1883 default :
1884 if (cinfo->args [iParm].reg == STK_BASE) {
1885 /*
1886 * These arguments are in the previous frame, so we can't
1887 * compute their offset from the current frame pointer right
1888 * now, since cfg->stack_offset is not yet known, so dedicate a
1889 * register holding the previous frame pointer.
1890 */
1891 cfg->arch.bkchain_reg = s390_r12;
1892 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1893
1894 inst->opcode = OP_REGOFFSET;
1895 inst->inst_basereg = cfg->arch.bkchain_reg;
1896 size = (cinfo->args[iParm].size < 4
1897 ? 4 - cinfo->args[iParm].size
1898 : 0);
1899 inst->inst_offset = cinfo->args [iParm].offset + size;
1900 size = sizeof (long);
1901 } else {
1902 inst->opcode = OP_REGOFFSET;
1903 inst->inst_basereg = frame_reg;
1904 size = (cinfo->args[iParm].size < 8
1905 ? sizeof(long)
1906 : sizeof(long long));
1907 offset = S390_ALIGN(offset, size);
1908 inst->inst_offset = offset;
1909 }
1910 }
1911 if ((sig->call_convention == MONO_CALL_VARARG) &&
1912 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1913 (iParm < sig->sentinelpos))
1914 cfg->sig_cookie += size;
1915
1916 offset += size;
1917 }
1918 curinst++;
1919 }
1920
1921 curinst = cfg->locals_start;
1922 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1923 inst = cfg->varinfo [iVar];
1924 if ((inst->flags & MONO_INST_IS_DEAD) ||
1925 (inst->opcode == OP_REGVAR))
1926 continue;
1927
1928 /*--------------------------------------------------*/
1929 /* inst->backend.is_pinvoke indicates native sized value types, */
1930 /* this is used by the pinvoke wrappers when they */
1931 /* call functions returning structure */
1932 /*--------------------------------------------------*/
1933 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1934 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1935 else
1936 size = mono_type_size (inst->inst_vtype, &align);
1937
1938 offset = S390_ALIGN(offset, align);
1939 inst->inst_offset = offset;
1940 inst->opcode = OP_REGOFFSET;
1941 inst->inst_basereg = frame_reg;
1942 offset += size;
1943 DEBUG (g_print("allocating local %d to %ld\n", iVar, inst->inst_offset));
1944 }
1945
1946 /*------------------------------------------------------*/
1947 /* Allow space for the trace method stack area if needed*/
1948 /*------------------------------------------------------*/
1949 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method)) {
1950 offset += S390_TRACE_STACK_SIZE;
1951 }
1952
1953 /*------------------------------------------------------*/
1954 /* Reserve space to save LMF and caller saved registers */
1955 /*------------------------------------------------------*/
1956 if (cfg->method->save_lmf)
1957 offset += sizeof (MonoLMF);
1958
1959 /*------------------------------------------------------*/
1960 /* align the offset */
1961 /*------------------------------------------------------*/
1962 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1963
1964 /* Fix up offsets for arguments whose value is in the parent frame */
1965 for (iParm = sArg; iParm < eArg; ++iParm) {
1966 inst = cfg->args [iParm];
1967
1968 if (inst->opcode == OP_S390_STKARG) {
1969 inst->opcode = OP_REGOFFSET;
1970 inst->inst_offset += cfg->stack_offset;
1971 }
1972 }
1973 }
1974
1975 /*========================= End of Function ========================*/
1976
1977 /*------------------------------------------------------------------*/
1978 /* */
1979 /* Name - mono_arch_create_vars */
1980 /* */
1981 /*------------------------------------------------------------------*/
1982
1983 void
1984 mono_arch_create_vars (MonoCompile *cfg)
1985 {
1986 MonoMethodSignature *sig;
1987 CallInfo *cinfo;
1988
1989 sig = mono_method_signature (cfg->method);
1990
1991 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1992
1993 if (cinfo->struct_ret) {
1994 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
1995 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1996 printf ("vret_addr = ");
1997 mono_print_ins (cfg->vret_addr);
1998 }
1999 }
2000 }
2001
2002 /*========================= End of Function ========================*/
2003
2004 static void
2005 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
2006 {
2007 MonoInst *ins;
2008
2009 switch (storage) {
2010 case RegTypeGeneral:
2011 MONO_INST_NEW (cfg, ins, OP_MOVE);
2012 ins->dreg = mono_alloc_ireg (cfg);
2013 ins->sreg1 = tree->dreg;
2014 MONO_ADD_INS (cfg->cbb, ins);
2015 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
2016 break;
2017 case RegTypeFP:
2018 MONO_INST_NEW (cfg, ins, OP_FMOVE);
2019 ins->dreg = mono_alloc_freg (cfg);
2020 ins->sreg1 = tree->dreg;
2021 MONO_ADD_INS (cfg->cbb, ins);
2022 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2023 break;
2024 case RegTypeFPR4:
2025 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
2026 ins->dreg = mono_alloc_freg (cfg);
2027 ins->sreg1 = tree->dreg;
2028 MONO_ADD_INS (cfg->cbb, ins);
2029 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2030 break;
2031 default:
2032 g_assert_not_reached ();
2033 }
2034 }
2035
2036 static void
2037 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2038 {
2039 MonoMethodSignature *tmpSig;
2040 MonoInst *sig_arg;
2041
2042 cfg->disable_aot = TRUE;
2043
2044 /*----------------------------------------------------------*/
2045 /* mono_ArgIterator_Setup assumes the signature cookie is */
2046 /* passed first and all the arguments which were before it */
2047 /* passed on the stack after the signature. So compensate */
2048 /* by passing a different signature. */
2049 /*----------------------------------------------------------*/
2050 tmpSig = mono_metadata_signature_dup (call->signature);
2051 tmpSig->param_count -= call->signature->sentinelpos;
2052 tmpSig->sentinelpos = 0;
2053 if (tmpSig->param_count > 0)
2054 memcpy (tmpSig->params,
2055 call->signature->params + call->signature->sentinelpos,
2056 tmpSig->param_count * sizeof(MonoType *));
2057
2058 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2059 sig_arg->dreg = mono_alloc_ireg (cfg);
2060 sig_arg->inst_p0 = tmpSig;
2061 MONO_ADD_INS (cfg->cbb, sig_arg);
2062
2063 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2064 cinfo->sigCookie.offset, sig_arg->dreg);
2065 }
2066
2067 /*------------------------------------------------------------------*/
2068 /* */
2069 /* Name - mono_arch_emit_call */
2070 /* */
2071 /*------------------------------------------------------------------*/
2072
2073 void
2074 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2075 {
2076 MonoInst *in;
2077 MonoMethodSignature *sig;
2078 MonoInst *ins;
2079 int i, n, lParamArea;
2080 CallInfo *cinfo;
2081 ArgInfo *ainfo = NULL;
2082 int stackSize;
2083
2084 sig = call->signature;
2085 n = sig->param_count + sig->hasthis;
2086 DEBUG (g_print ("Call requires: %d parameters\n",n));
2087
2088 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2089
2090 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2091 call->stack_usage = MAX(stackSize, call->stack_usage);
2092 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2093 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2094 cfg->flags |= MONO_CFG_HAS_CALLS;
2095
2096 if (cinfo->struct_ret) {
2097 MONO_INST_NEW (cfg, ins, OP_MOVE);
2098 ins->sreg1 = call->vret_var->dreg;
2099 ins->dreg = mono_alloc_preg (cfg);
2100 MONO_ADD_INS (cfg->cbb, ins);
2101 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2102 }
2103
2104 for (i = 0; i < n; ++i) {
2105 ainfo = cinfo->args + i;
2106 MonoType *t;
2107
2108 if (i >= sig->hasthis)
2109 t = sig->params [i - sig->hasthis];
2110 else
2111 t = &mono_defaults.int_class->byval_arg;
2112 t = mono_type_get_underlying_type (t);
2113
2114 in = call->args [i];
2115
2116 if ((sig->call_convention == MONO_CALL_VARARG) &&
2117 (i == sig->sentinelpos)) {
2118 emit_sig_cookie (cfg, call, cinfo);
2119 }
2120
2121 switch (ainfo->regtype) {
2122 case RegTypeGeneral:
2123 if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2124 MONO_INST_NEW (cfg, ins, OP_MOVE);
2125 ins->dreg = mono_alloc_ireg (cfg);
2126 ins->sreg1 = in->dreg + 2;
2127 MONO_ADD_INS (cfg->cbb, ins);
2128 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
2129 MONO_INST_NEW (cfg, ins, OP_MOVE);
2130 ins->dreg = mono_alloc_ireg (cfg);
2131 ins->sreg1 = in->dreg + 1;
2132 MONO_ADD_INS (cfg->cbb, ins);
2133 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg + 1, FALSE);
2134 } else {
2135 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2136 }
2137 break;
2138 case RegTypeFP:
2139 if (MONO_TYPE_ISSTRUCT (t)) {
2140 /* Valuetype passed in one fp register */
2141 ainfo->regtype = RegTypeStructByValInFP;
2142 /* Fall through */
2143 } else {
2144 if (ainfo->size == 4)
2145 ainfo->regtype = RegTypeFPR4;
2146 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2147 break;
2148 }
2149 case RegTypeStructByVal:
2150 case RegTypeStructByAddr: {
2151 guint32 align;
2152 guint32 size;
2153
2154 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2155 size = sizeof (MonoTypedRef);
2156 align = sizeof (gpointer);
2157 }
2158 else
2159 if (sig->pinvoke)
2160 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2161 else {
2162 /*
2163 * Other backends use mono_type_stack_size (), but that
2164 * aligns the size to 8, which is larger than the size of
2165 * the source, leading to reads of invalid memory if the
2166 * source is at the end of address space.
2167 */
2168 size = mono_class_value_size (in->klass, &align);
2169 }
2170
2171 g_assert (in->klass);
2172
2173 ainfo->offparm += cinfo->sz.offStruct;
2174
2175 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2176 ins->sreg1 = in->dreg;
2177 ins->klass = in->klass;
2178 ins->backend.size = ainfo->size;
2179 ins->inst_p0 = call;
2180 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2181 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2182
2183 MONO_ADD_INS (cfg->cbb, ins);
2184
2185 if (ainfo->regtype == RegTypeStructByAddr) {
2186 /*
2187 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2188 * use the normal OUTARG opcodes to pass the address of the location to
2189 * the callee.
2190 */
2191 int treg = mono_alloc_preg (cfg);
2192 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2193 STK_BASE, ainfo->offparm);
2194 if (ainfo->reg == STK_BASE) {
2195 /* The address is passed on the stack */
2196 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2197 ins->inst_destbasereg = STK_BASE;
2198 ins->inst_offset = ainfo->offset;
2199 ins->sreg1 = treg;
2200 MONO_ADD_INS (cfg->cbb, ins);
2201 } else {
2202 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2203 }
2204 }
2205 break;
2206 }
2207 case RegTypeBase:
2208 if (!t->byref && t->type == MONO_TYPE_R4) {
2209 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2210 STK_BASE, ainfo->offset,
2211 in->dreg);
2212 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2213 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2214 STK_BASE, ainfo->offset,
2215 in->dreg);
2216 } else if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2217 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2218 ins->inst_destbasereg = STK_BASE;
2219 ins->inst_offset = ainfo->offset + MINI_LS_WORD_OFFSET;
2220 ins->sreg1 = in->dreg + 1;
2221 MONO_ADD_INS (cfg->cbb, ins);
2222
2223 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2224 ins->inst_destbasereg = STK_BASE;
2225 ins->inst_offset = ainfo->offset + MINI_MS_WORD_OFFSET;
2226 ins->sreg1 = in->dreg + 2;
2227 MONO_ADD_INS (cfg->cbb, ins);
2228 } else {
2229 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2230 ins->inst_destbasereg = STK_BASE;
2231 ins->inst_offset = ainfo->offset;
2232 ins->sreg1 = in->dreg;
2233 MONO_ADD_INS (cfg->cbb, ins);
2234 }
2235 break;
2236 default:
2237 g_assert_not_reached ();
2238 break;
2239 }
2240 }
2241
2242 /*
2243 * Handle the case where there are no implicit arguments
2244 */
2245 if ((sig->call_convention == MONO_CALL_VARARG) &&
2246 (i == sig->sentinelpos)) {
2247 emit_sig_cookie (cfg, call, cinfo);
2248 }
2249 }
2250
2251 /*========================= End of Function ========================*/
2252
2253 /*------------------------------------------------------------------*/
2254 /* */
2255 /* Name - mono_arch_emit_outarg_vt */
2256 /* */
2257 /*------------------------------------------------------------------*/
2258
2259 void
2260 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2261 {
2262 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2263 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2264 int size = ins->backend.size;
2265
2266 if (ainfo->regtype == RegTypeStructByVal) {
2267 /*
2268 arg->ins.sreg1 = ainfo->reg;
2269 arg->ins.opcode = OP_OUTARG_VT;
2270 arg->size = ainfo->size;
2271 arg->offset = ainfo->offset;
2272 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2273 */
2274 if (ainfo->reg != STK_BASE) {
2275 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2276 } else {
2277 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2278 src->dreg, 0);
2279 }
2280 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2281 int dreg = mono_alloc_freg (cfg);
2282
2283 if (ainfo->size == 4) {
2284 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2285 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2286 } else {
2287 g_assert (ainfo->size == 8);
2288
2289 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2290 }
2291
2292 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2293 } else {
2294 MONO_EMIT_NEW_MOVE (cfg, STK_BASE, ainfo->offparm,
2295 src->dreg, 0, size);
2296 }
2297 }
2298
2299 /*------------------------------------------------------------------*/
2300 /* */
2301 /* Name - mono_arch_emit_setret */
2302 /* */
2303 /*------------------------------------------------------------------*/
2304
2305 void
2306 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2307 {
2308 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2309
2310 if (!ret->byref) {
2311 if (ret->type == MONO_TYPE_R4) {
2312 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2313 return;
2314 } else if (ret->type == MONO_TYPE_R8) {
2315 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2316 return;
2317 } else if (ret->type == MONO_TYPE_I8 || ret->type == MONO_TYPE_U8) {
2318 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r3, val->dreg + 1);
2319 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r2, val->dreg + 2);
2320 return;
2321 }
2322 }
2323
2324 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2325 }
2326
2327 /*========================= End of Function ========================*/
2328
2329 /*------------------------------------------------------------------*/
2330 /* */
2331 /* Name - mono_arch_instrument_mem_needs */
2332 /* */
2333 /* Function - Allow tracing to work with this interface (with */
2334 /* an optional argument). */
2335 /* */
2336 /*------------------------------------------------------------------*/
2337
2338 void
2339 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2340 {
2341 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2342 *stack = 0;
2343 /* split prolog-epilog requirements? */
2344 *code = 50; /* max bytes needed: check this number */
2345 }
2346
2347 /*========================= End of Function ========================*/
2348
2349 /*------------------------------------------------------------------*/
2350 /* */
2351 /* Name - mono_arch_instrument_prolog */
2352 /* */
2353 /* Function - Create an "instrumented" prolog. */
2354 /* */
2355 /*------------------------------------------------------------------*/
2356
2357 void*
2358 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2359 gboolean enable_arguments)
2360 {
2361 guchar *code = p;
2362 int parmOffset,
2363 fpOffset,
2364 baseReg;
2365
2366 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2367 if (cfg->method->save_lmf)
2368 parmOffset -= sizeof(MonoLMF);
2369 fpOffset = parmOffset + (5*sizeof(gint32));
2370 if (fpOffset > 4096) {
2371 s390_lr (code, s390_r12, STK_BASE);
2372 baseReg = s390_r12;
2373 while (fpOffset > 4096) {
2374 s390_ahi (code, baseReg, 4096);
2375 fpOffset -= 4096;
2376 parmOffset -= 4096;
2377 }
2378 } else {
2379 baseReg = STK_BASE;
2380 }
2381
2382 s390_stm (code, s390_r2, s390_r6, baseReg, parmOffset);
2383 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2384 s390_std (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2385 s390_std (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2386 s390_basr (code, s390_r13, 0);
2387 s390_j (code, 6);
2388 s390_word (code, cfg->method);
2389 s390_word (code, func);
2390 s390_l (code, s390_r2, 0, s390_r13, 4);
2391 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2392 s390_lr (code, s390_r4, STK_BASE);
2393 s390_ahi (code, s390_r4, cfg->stack_usage);
2394 s390_l (code, s390_r1, 0, s390_r13, 8);
2395 s390_basr (code, s390_r14, s390_r1);
2396 s390_ld (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2397 s390_ld (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2398 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2399 s390_lm (code, s390_r2, s390_r6, baseReg, parmOffset);
2400
2401 return code;
2402 }
2403
2404 /*========================= End of Function ========================*/
2405
2406 /*------------------------------------------------------------------*/
2407 /* */
2408 /* Name - mono_arch_instrument_epilog */
2409 /* */
2410 /* Function - Create an epilog that will handle the returned */
2411 /* values used in instrumentation. */
2412 /* */
2413 /*------------------------------------------------------------------*/
2414
2415 void*
2416 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
2417 {
2418 guchar *code = p;
2419 int save_mode = SAVE_NONE,
2420 saveOffset;
2421 MonoMethod *method = cfg->method;
2422 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2423
2424 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2425 if (method->save_lmf)
2426 saveOffset -= sizeof(MonoLMF);
2427
2428 handle_enum:
2429 switch (rtype) {
2430 case MONO_TYPE_VOID:
2431 /* special case string .ctor icall */
2432 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2433 save_mode = SAVE_ONE;
2434 else
2435 save_mode = SAVE_NONE;
2436 break;
2437 case MONO_TYPE_I8:
2438 case MONO_TYPE_U8:
2439 save_mode = SAVE_TWO;
2440 break;
2441 case MONO_TYPE_R4:
2442 save_mode = SAVE_R4;
2443 break;
2444 case MONO_TYPE_R8:
2445 save_mode = SAVE_R8;
2446 break;
2447 case MONO_TYPE_VALUETYPE:
2448 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2449 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2450 goto handle_enum;
2451 }
2452 save_mode = SAVE_STRUCT;
2453 break;
2454 default:
2455 save_mode = SAVE_ONE;
2456 break;
2457 }
2458
2459 switch (save_mode) {
2460 case SAVE_TWO:
2461 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2462 if (enable_arguments) {
2463 s390_lr (code, s390_r4, s390_r3);
2464 s390_lr (code, s390_r3, s390_r2);
2465 }
2466 break;
2467 case SAVE_ONE:
2468 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2469 if (enable_arguments) {
2470 s390_lr (code, s390_r3, s390_r2);
2471 }
2472 break;
2473 case SAVE_R4:
2474 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2475 if (enable_arguments) {
2476 s390_ldebr (code, s390_f0, s390_f0);
2477 }
2478 break;
2479 case SAVE_R8:
2480 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2481 break;
2482 case SAVE_STRUCT:
2483 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2484 if (enable_arguments) {
2485 s390_l (code, s390_r3, 0, cfg->frame_reg,
2486 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2487 }
2488 break;
2489 case SAVE_NONE:
2490 default:
2491 break;
2492 }
2493
2494 s390_basr (code, s390_r13, 0);
2495 s390_j (code, 6);
2496 s390_word (code, cfg->method);
2497 s390_word (code, func);
2498 s390_l (code, s390_r2, 0, s390_r13, 4);
2499 s390_l (code, s390_r1, 0, s390_r13, 8);
2500 s390_basr (code, s390_r14, s390_r1);
2501
2502 switch (save_mode) {
2503 case SAVE_TWO:
2504 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2505 break;
2506 case SAVE_ONE:
2507 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2508 break;
2509 case SAVE_R4:
2510 case SAVE_R8:
2511 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2512 break;
2513 case SAVE_STRUCT:
2514 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2515 break;
2516 case SAVE_NONE:
2517 default:
2518 break;
2519 }
2520
2521 return code;
2522 }
2523
2524 /*========================= End of Function ========================*/
2525
2526 void
2527 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2528 {
2529 }
2530
2531 /*------------------------------------------------------------------*/
2532 /* */
2533 /* Name - mono_arch_peephole_pass */
2534 /* */
2535 /* Function - Form a peephole pass at the code looking for */
2536 /* simple optimizations. */
2537 /* */
2538 /*------------------------------------------------------------------*/
2539
2540 void
2541 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2542 {
2543 MonoInst *ins, *n;
2544
2545 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2546 mono_peephole_ins (bb, ins);
2547 }
2548 }
2549
2550 /*========================= End of Function ========================*/
2551
2552 void
2553 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2554 {
2555 MonoInst *ins, *next;
2556
2557 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2558 switch (ins->opcode) {
2559 case OP_DIV_IMM:
2560 case OP_REM_IMM:
2561 case OP_IDIV_IMM:
2562 case OP_IREM_IMM:
2563 case OP_IDIV_UN_IMM:
2564 case OP_IREM_UN_IMM:
2565 case OP_LOCALLOC_IMM:
2566 mono_decompose_op_imm (cfg, bb, ins);
2567 break;
2568 default:
2569 break;
2570 }
2571 }
2572
2573 bb->max_vreg = cfg->next_vreg;
2574 }
2575
2576 /*========================= End of Function ========================*/
2577
2578 /*------------------------------------------------------------------*/
2579 /* */
2580 /* Name - emit_float_to_int */
2581 /* */
2582 /* Function - Create instructions which will convert a floating */
2583 /* point value to integer. */
2584 /* */
2585 /*------------------------------------------------------------------*/
2586
2587 static guchar*
2588 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2589 {
2590 /* sreg is a float, dreg is an integer reg. */
2591 if (is_signed) {
2592 s390_cfdbr (code, dreg, 5, sreg);
2593 switch (size) {
2594 case 1:
2595 s390_lhi (code, s390_r0, 0);
2596 s390_lhi (code, s390_r13, 0xff);
2597 s390_ltr (code, dreg, dreg);
2598 s390_jnl (code, 4);
2599 s390_lhi (code, s390_r0, 0x80);
2600 s390_nr (code, dreg, s390_r13);
2601 s390_or (code, dreg, s390_r0);
2602 break;
2603 }
2604 } else {
2605 short *o[1];
2606 s390_basr (code, s390_r13, 0);
2607 s390_j (code, 10);
2608 s390_llong (code, 0x41e0000000000000LL);
2609 s390_llong (code, 0x41f0000000000000LL);
2610 s390_ldr (code, s390_f15, sreg);
2611 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2612 s390_jl (code, 0); CODEPTR(code, o[0]);
2613 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2614 s390_cfdbr (code, dreg, 7, s390_f15);
2615 s390_j (code, 4);
2616 PTRSLOT(code, o[0]);
2617 s390_cfdbr (code, dreg, 5, sreg);
2618 switch (size) {
2619 case 1:
2620 s390_lhi (code, s390_r0, 0xff);
2621 s390_nr (code, dreg, s390_r0);
2622 break;
2623 case 2:
2624 s390_lhi (code, s390_r0, -1);
2625 s390_srl (code, s390_r0, 0, 16);
2626 s390_nr (code, dreg, s390_r0);
2627 break;
2628 }
2629 }
2630 return code;
2631 }
2632
2633 /*========================= End of Function ========================*/
2634
2635 /*------------------------------------------------------------------*/
2636 /* */
2637 /* Name - mono_arch_output_basic_block */
2638 /* */
2639 /* Function - Perform the "real" work of emitting instructions */
2640 /* that will do the work of in the basic block. */
2641 /* */
2642 /*------------------------------------------------------------------*/
2643
2644 void
2645 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2646 {
2647 MonoInst *ins;
2648 MonoCallInst *call;
2649 guint offset;
2650 guint8 *code = cfg->native_code + cfg->code_len;
2651 MonoInst *last_ins = NULL;
2652 guint last_offset = 0;
2653 int max_len, cpos, src2;
2654
2655 /* we don't align basic blocks of loops on s390 */
2656
2657 if (cfg->verbose_level > 2)
2658 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2659
2660 cpos = bb->max_offset;
2661
2662 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2663 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2664 //g_assert (!mono_compile_aot);
2665 //cpos += 6;
2666 //if (bb->cil_code)
2667 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2668 /* this is not thread save, but good enough */
2669 /* fixme: howto handle overflows? */
2670 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2671 }
2672
2673 MONO_BB_FOR_EACH_INS (bb, ins) {
2674 offset = code - cfg->native_code;
2675
2676 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2677
2678 if (offset > (cfg->code_size - max_len - 16)) {
2679 cfg->code_size *= 2;
2680 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2681 code = cfg->native_code + offset;
2682 }
2683
2684 mono_debug_record_line_number (cfg, ins, offset);
2685
2686 switch (ins->opcode) {
2687 case OP_STOREI1_MEMBASE_IMM: {
2688 s390_lhi (code, s390_r0, ins->inst_imm);
2689 if (s390_is_uimm12(ins->inst_offset))
2690 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2691 else {
2692 s390_basr (code, s390_r13, 0);
2693 s390_j (code, 4);
2694 s390_word (code, ins->inst_offset);
2695 s390_l (code, s390_r13, 0, s390_r13, 4);
2696 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2697 }
2698 }
2699 break;
2700 case OP_STOREI2_MEMBASE_IMM: {
2701 s390_lhi (code, s390_r0, ins->inst_imm);
2702 if (s390_is_uimm12(ins->inst_offset)) {
2703 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2704 } else {
2705 s390_basr (code, s390_r13, 0);
2706 s390_j (code, 4);
2707 s390_word (code, ins->inst_offset);
2708 s390_l (code, s390_r13, 0, s390_r13, 4);
2709 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2710 }
2711 }
2712 break;
2713 case OP_STORE_MEMBASE_IMM:
2714 case OP_STOREI4_MEMBASE_IMM: {
2715 if (s390_is_imm16(ins->inst_imm)) {
2716 s390_lhi (code, s390_r0, ins->inst_imm);
2717 } else {
2718 s390_basr (code, s390_r13, 0);
2719 s390_j (code, 4);
2720 s390_word (code, ins->inst_imm);
2721 s390_l (code, s390_r0, 0, s390_r13, 4);
2722 }
2723 if (s390_is_uimm12(ins->inst_offset)) {
2724 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2725 } else {
2726 s390_basr (code, s390_r13, 0);
2727 s390_j (code, 4);
2728 s390_word (code, ins->inst_offset);
2729 s390_l (code, s390_r13, 0, s390_r13, 4);
2730 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2731 }
2732 }
2733 break;
2734 case OP_STOREI1_MEMBASE_REG: {
2735 if (s390_is_uimm12(ins->inst_offset)) {
2736 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2737 } else {
2738 s390_basr (code, s390_r13, 0);
2739 s390_j (code, 4);
2740 s390_word (code, ins->inst_offset);
2741 s390_l (code, s390_r13, 0, s390_r13, 4);
2742 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2743 }
2744 }
2745 break;
2746 case OP_STOREI2_MEMBASE_REG: {
2747 if (s390_is_uimm12(ins->inst_offset)) {
2748 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2749 } else {
2750 s390_basr (code, s390_r13, 0);
2751 s390_j (code, 4);
2752 s390_word (code, ins->inst_offset);
2753 s390_l (code, s390_r13, 0, s390_r13, 4);
2754 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2755 }
2756 }
2757 break;
2758 case OP_STORE_MEMBASE_REG:
2759 case OP_STOREI4_MEMBASE_REG: {
2760 if (s390_is_uimm12(ins->inst_offset)) {
2761 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2762 } else {
2763 s390_basr (code, s390_r13, 0);
2764 s390_j (code, 4);
2765 s390_word (code, ins->inst_offset);
2766 s390_l (code, s390_r13, 0, s390_r13, 4);
2767 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2768 }
2769 }
2770 break;
2771 case OP_LOADU4_MEM:
2772 g_assert_not_reached ();
2773 break;
2774 case OP_LOAD_MEMBASE:
2775 case OP_LOADI4_MEMBASE:
2776 case OP_LOADU4_MEMBASE: {
2777 if (s390_is_uimm12(ins->inst_offset))
2778 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2779 else {
2780 if (s390_is_imm16(ins->inst_offset)) {
2781 s390_lhi (code, s390_r13, ins->inst_offset);
2782 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2783 } else {
2784 s390_basr (code, s390_r13, 0);
2785 s390_j (code, 4);
2786 s390_word (code, ins->inst_offset);
2787 s390_l (code, s390_r13, 0, s390_r13, 4);
2788 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2789 }
2790 }
2791 }
2792 break;
2793 case OP_LOADU1_MEMBASE: {
2794 s390_lhi (code, s390_r0, 0);
2795 if (s390_is_uimm12(ins->inst_offset))
2796 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2797 else {
2798 s390_basr (code, s390_r13, 0);
2799 s390_j (code, 4);
2800 s390_word (code, ins->inst_offset);
2801 s390_l (code, s390_r13, 0, s390_r13, 4);
2802 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2803 }
2804 s390_lr (code, ins->dreg, s390_r0);
2805 }
2806 break;
2807 case OP_LOADI1_MEMBASE: {
2808 s390_lhi (code, s390_r0, 0);
2809 if (s390_is_uimm12(ins->inst_offset))
2810 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2811 else {
2812 s390_basr (code, s390_r13, 0);
2813 s390_j (code, 4);
2814 s390_word (code, ins->inst_offset);
2815 s390_l (code, s390_r13, 0, s390_r13, 4);
2816 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2817 }
2818 s390_lhi (code, s390_r13, 0x80);
2819 s390_nr (code, s390_r13, s390_r0);
2820 s390_jz (code, 5);
2821 s390_lhi (code, s390_r13, 0xff00);
2822 s390_or (code, s390_r0, s390_r13);
2823 s390_lr (code, ins->dreg, s390_r0);
2824 }
2825 break;
2826 case OP_LOADU2_MEMBASE: {
2827 s390_lhi (code, s390_r0, 0);
2828 if (s390_is_uimm12(ins->inst_offset))
2829 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
2830 else {
2831 s390_basr (code, s390_r13, 0);
2832 s390_j (code, 4);
2833 s390_word (code, ins->inst_offset);
2834 s390_l (code, s390_r13, 0, s390_r13, 4);
2835 s390_ar (code, s390_r13, ins->inst_basereg);
2836 s390_icm (code, s390_r0, 3, s390_r13, 0);
2837 }
2838 s390_lr (code, ins->dreg, s390_r0);
2839 }
2840 break;
2841 case OP_LOADI2_MEMBASE: {
2842 s390_lhi (code, s390_r0, 0);
2843 if (s390_is_uimm12(ins->inst_offset))
2844 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2845 else {
2846 s390_basr (code, s390_r13, 0);
2847 s390_j (code, 4);
2848 s390_word (code, ins->inst_offset);
2849 s390_l (code, s390_r13, 0, s390_r13, 4);
2850 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2851 }
2852 s390_lr (code, ins->dreg, s390_r0);
2853 }
2854 break;
2855
2856 case OP_ICONV_TO_I1: {
2857 if (ins->dreg != ins->sreg1)
2858 s390_lr (code, ins->dreg, ins->sreg1);
2859 s390_sll (code, ins->dreg, 0, 24);
2860 s390_sra (code, ins->dreg, 0, 24);
2861 }
2862 break;
2863 case OP_ICONV_TO_I2: {
2864 if (ins->dreg != ins->sreg1)
2865 s390_lr (code, ins->dreg, ins->sreg1);
2866 s390_sll (code, ins->dreg, 0, 16);
2867 s390_sra (code, ins->dreg, 0, 16);
2868 }
2869 break;
2870 case OP_ICONV_TO_U1: {
2871 s390_lhi (code, s390_r0, 0xff);
2872 if (ins->dreg != ins->sreg1) {
2873 s390_lr (code, ins->dreg, ins->sreg1);
2874 }
2875 s390_nr (code, ins->dreg, s390_r0);
2876 }
2877 break;
2878 case OP_ICONV_TO_U2: {
2879 s390_lhi (code, s390_r0, -1);
2880 s390_sll (code, s390_r0, 0, 16);
2881 s390_srl (code, s390_r0, 0, 16);
2882 if (ins->dreg != ins->sreg1) {
2883 s390_lr (code, ins->dreg, ins->sreg1);
2884 }
2885 s390_nr (code, ins->dreg, s390_r0);
2886 }
2887 break;
2888 case OP_COMPARE:
2889 case OP_ICOMPARE: {
2890 gboolean un = FALSE;
2891 MonoInst *next = ins->next;
2892
2893 if ((next) &&
2894 (((next->opcode >= OP_IBNE_UN) &&
2895 (next->opcode <= OP_IBLT_UN)) ||
2896 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2897 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2898 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2899 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2900 ((next->opcode == OP_CLT_UN) ||
2901 (next->opcode == OP_CGT_UN)) ||
2902 ((next->opcode == OP_ICLT_UN) ||
2903 (next->opcode == OP_ICGT_UN))))
2904 un = TRUE;
2905
2906 if (un)
2907 s390_clr (code, ins->sreg1, ins->sreg2);
2908 else
2909 s390_cr (code, ins->sreg1, ins->sreg2);
2910 }
2911 break;
2912 case OP_COMPARE_IMM:
2913 case OP_ICOMPARE_IMM: {
2914 gboolean un = FALSE;
2915 MonoInst *next = ins->next;
2916
2917 if ((next) &&
2918 (((next->opcode >= OP_IBNE_UN) &&
2919 (next->opcode <= OP_IBLT_UN)) ||
2920 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2921 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2922 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2923 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2924 ((next->opcode == OP_CLT_UN) ||
2925 (next->opcode == OP_CGT_UN)) ||
2926 ((next->opcode == OP_ICLT_UN) ||
2927 (next->opcode == OP_ICGT_UN))))
2928 un = TRUE;
2929
2930 if (s390_is_imm16 (ins->inst_imm)) {
2931 s390_lhi (code, s390_r0, ins->inst_imm);
2932 if (un)
2933 s390_clr (code, ins->sreg1, s390_r0);
2934 else
2935 s390_cr (code, ins->sreg1, s390_r0);
2936 }
2937 else {
2938 s390_basr (code, s390_r13, 0);
2939 s390_j (code, 4);
2940 s390_word (code, ins->inst_imm);
2941 if (un)
2942 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2943 else
2944 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2945 }
2946 }
2947 break;
2948 case OP_BREAK: {
2949 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_break);
2950 s390_brasl (code, s390_r14, 0);
2951 }
2952 break;
2953 case OP_ADDCC:
2954 case OP_IADDCC: {
2955 CHECK_SRCDST_COM;
2956 s390_alr (code, ins->dreg, src2);
2957 }
2958 break;
2959 case OP_IADD: {
2960 CHECK_SRCDST_COM;
2961 s390_ar (code, ins->dreg, src2);
2962 }
2963 break;
2964 case OP_ADC:
2965 case OP_IADC: {
2966 CHECK_SRCDST_COM;
2967 s390_alcr (code, ins->dreg, src2);
2968 }
2969 break;
2970 case OP_ADD_IMM:
2971 case OP_IADD_IMM: {
2972 if (ins->dreg != ins->sreg1) {
2973 s390_lr (code, ins->dreg, ins->sreg1);
2974 }
2975 if ((ins->next) &&
2976 (ins->next->opcode == OP_ADC_IMM)) {
2977 s390_basr (code, s390_r13, 0);
2978 s390_j (code, 4);
2979 s390_word (code, ins->inst_imm);
2980 s390_a (code, ins->dreg, 0, s390_r13, 4);
2981 } else {
2982 if (s390_is_imm16 (ins->inst_imm)) {
2983 s390_ahi (code, ins->dreg, ins->inst_imm);
2984 } else {
2985 s390_basr (code, s390_r13, 0);
2986 s390_j (code, 4);
2987 s390_word (code, ins->inst_imm);
2988 s390_a (code, ins->dreg, 0, s390_r13, 4);
2989 }
2990 }
2991 }
2992 break;
2993 case OP_ADDCC_IMM: {
2994 if ((ins->next) &&
2995 (ins->next->opcode == OP_ADC_IMM)) {
2996 s390_basr (code, s390_r13, 0);
2997 s390_j (code, 4);
2998 s390_word (code, ins->inst_imm);
2999 if (ins->dreg != ins->sreg1) {
3000 s390_lr (code, ins->dreg, ins->sreg1);
3001 }
3002 s390_al (code, ins->dreg, 0, s390_r13, 4);
3003 } else {
3004 if (s390_is_imm16 (ins->inst_imm)) {
3005 if (ins->dreg != ins->sreg1) {
3006 s390_lr (code, ins->dreg, ins->sreg1);
3007 }
3008 s390_lhi (code, s390_r0, ins->inst_imm);
3009 s390_alcr (code, ins->dreg, s390_r0);
3010 } else {
3011 s390_basr (code, s390_r13, 0);
3012 s390_j (code, 4);
3013 s390_word (code, ins->inst_imm);
3014 if (ins->dreg != ins->sreg1) {
3015 s390_lr (code, ins->dreg, ins->sreg1);
3016 }
3017 s390_al (code, ins->dreg, 0, s390_r13, 4);
3018 }
3019 }
3020 }
3021 break;
3022 case OP_ADC_IMM: {
3023 if (s390_is_imm16 (ins->inst_imm)) {
3024 if (ins->dreg != ins->sreg1) {
3025 s390_lr (code, ins->dreg, ins->sreg1);
3026 }
3027 s390_lhi (code, s390_r0, ins->inst_imm);
3028 s390_alcr (code, ins->dreg, s390_r0);
3029 } else {
3030 s390_basr (code, s390_r13, 0);
3031 s390_j (code, 4);
3032 s390_word (code, ins->inst_imm);
3033 s390_l (code, s390_r13, 0, s390_r13, 4);
3034 s390_alcr (code, ins->dreg, s390_r13);
3035 }
3036 }
3037 break;
3038 case OP_IADD_OVF:
3039 case OP_S390_IADD_OVF: {
3040 CHECK_SRCDST_COM;
3041 s390_ar (code, ins->dreg, src2);
3042 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3043 }
3044 break;
3045 case OP_IADD_OVF_UN:
3046 case OP_S390_IADD_OVF_UN: {
3047 CHECK_SRCDST_COM;
3048 s390_alr (code, ins->dreg, src2);
3049 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3050 }
3051 break;
3052 case OP_LADD:
3053 case OP_S390_LADD: {
3054 s390_alr (code, s390_r0, ins->sreg1);
3055 s390_jnc (code, 4);
3056 s390_ahi (code, s390_r1, 1);
3057 s390_ar (code, s390_r1, ins->sreg2);
3058 s390_lr (code, ins->dreg, s390_r0);
3059 s390_lr (code, ins->dreg+1, s390_r1);
3060 }
3061 break;
3062 case OP_LADD_OVF:
3063 case OP_S390_LADD_OVF: {
3064 short int *o[1];
3065 s390_alr (code, s390_r0, ins->sreg1);
3066 s390_jnc (code, 0); CODEPTR(code, o[0]);
3067 s390_ahi (code, s390_r1, 1);
3068 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3069 PTRSLOT (code, o[0]);
3070 s390_ar (code, s390_r1, ins->sreg2);
3071 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3072 s390_lr (code, ins->dreg, s390_r0);
3073 s390_lr (code, ins->dreg+1, s390_r1);
3074 }
3075 break;
3076 case OP_LADD_OVF_UN:
3077 case OP_S390_LADD_OVF_UN: {
3078 s390_alr (code, s390_r0, ins->sreg1);
3079 s390_alcr (code, s390_r1, ins->sreg2);
3080 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3081 s390_lr (code, ins->dreg, s390_r0);
3082 s390_lr (code, ins->dreg+1, s390_r1);
3083 }
3084 break;
3085 case OP_ADD_OVF_CARRY: {
3086 CHECK_SRCDST_COM;
3087 s390_lhi (code, s390_r0, 0);
3088 s390_lr (code, s390_r1, s390_r0);
3089 s390_alcr (code, s390_r0, s390_r1);
3090 s390_ar (code, ins->dreg, src2);
3091 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3092 s390_ar (code, ins->dreg, s390_r0);
3093 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3094 }
3095 break;
3096 case OP_ADD_OVF_UN_CARRY: {
3097 CHECK_SRCDST_COM;
3098 s390_alcr (code, ins->dreg, src2);
3099 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3100 }
3101 break;
3102 case OP_SUBCC:
3103 case OP_ISUBCC: {
3104 CHECK_SRCDST_NCOM;
3105 s390_slr (code, ins->dreg, src2);
3106 }
3107 break;
3108 case OP_ISUB: {
3109 CHECK_SRCDST_NCOM;
3110 s390_sr (code, ins->dreg, src2);
3111 }
3112 break;
3113 case OP_SBB:
3114 case OP_ISBB: {
3115 CHECK_SRCDST_NCOM;
3116 s390_slbr (code, ins->dreg, src2);
3117 }
3118 break;
3119 case OP_SUBCC_IMM: {
3120 if (s390_is_imm16 (-ins->inst_imm)) {
3121 if (ins->dreg != ins->sreg1) {
3122 s390_lr (code, ins->dreg, ins->sreg1);
3123 }
3124 s390_lhi (code, s390_r0, ins->inst_imm);
3125 s390_slr (code, ins->dreg, s390_r0);
3126 } else {
3127 s390_basr (code, s390_r13, 0);
3128 s390_j (code, 4);
3129 s390_word (code, ins->inst_imm);
3130 if (ins->dreg != ins->sreg1) {
3131 s390_lr (code, ins->dreg, ins->sreg1);
3132 }
3133 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3134 }
3135 }
3136 break;
3137 case OP_SUB_IMM:
3138 case OP_ISUB_IMM: {
3139 if (s390_is_imm16 (-ins->inst_imm)) {
3140 if (ins->dreg != ins->sreg1) {
3141 s390_lr (code, ins->dreg, ins->sreg1);
3142 }
3143 s390_ahi (code, ins->dreg, -ins->inst_imm);
3144 } else {
3145 s390_basr (code, s390_r13, 0);
3146 s390_j (code, 4);
3147 s390_word (code, ins->inst_imm);
3148 if (ins->dreg != ins->sreg1) {
3149 s390_lr (code, ins->dreg, ins->sreg1);
3150 }
3151 s390_s (code, ins->dreg, 0, s390_r13, 4);
3152 }
3153 }
3154 break;
3155 case OP_SBB_IMM: {
3156 if (ins->dreg != ins->sreg1) {
3157 s390_lr (code, ins->dreg, ins->sreg1);
3158 }
3159 if (s390_is_imm16 (-ins->inst_imm)) {
3160 s390_lhi (code, s390_r0, ins->inst_imm);
3161 s390_slbr (code, ins->dreg, s390_r0);
3162 } else {
3163 s390_basr (code, s390_r13, 0);
3164 s390_j (code, 4);
3165 s390_word (code, ins->inst_imm);
3166 s390_slb (code, ins->dreg, 0, s390_r13, 4);
3167 }
3168 }
3169 break;
3170 case OP_ISUB_OVF:
3171 case OP_S390_ISUB_OVF: {
3172 CHECK_SRCDST_NCOM;
3173 s390_sr (code, ins->dreg, src2);
3174 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3175 }
3176 break;
3177 case OP_ISUB_OVF_UN:
3178 case OP_S390_ISUB_OVF_UN: {
3179 CHECK_SRCDST_NCOM;
3180 s390_slr (code, ins->dreg, src2);
3181 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3182 }
3183 break;
3184 case OP_LSUB:
3185 case OP_S390_LSUB: {
3186 s390_lr (code, s390_r14, ins->sreg2);
3187 s390_slr (code, s390_r0, ins->sreg1);
3188 s390_jnl (code, 4);
3189 s390_ahi (code, s390_r14, 1);
3190 s390_sr (code, s390_r1, s390_r14);
3191 s390_lr (code, ins->dreg, s390_r0);
3192 s390_lr (code, ins->dreg+1, s390_r1);
3193 }
3194 break;
3195 case OP_LSUB_OVF:
3196 case OP_S390_LSUB_OVF: {
3197 short int *o[1];
3198 s390_lr (code, s390_r14, ins->sreg2);
3199 s390_slr (code, s390_r0, ins->sreg1);
3200 s390_jnl (code, 0); CODEPTR(code, o[0]);
3201 s390_ahi (code, s390_r14, 1);
3202 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3203 PTRSLOT (code, o[0]);
3204 s390_sr (code, s390_r1, s390_r14);
3205 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3206 s390_lr (code, ins->dreg, s390_r0);
3207 s390_lr (code, ins->dreg+1, s390_r1);
3208 }
3209 break;
3210 case OP_LSUB_OVF_UN:
3211 case OP_S390_LSUB_OVF_UN: {
3212 s390_slr (code, s390_r0, ins->sreg1);
3213 s390_slbr (code, s390_r1, ins->sreg2);
3214 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3215 s390_lr (code, ins->dreg, s390_r0);
3216 s390_lr (code, ins->dreg+1, s390_r1);
3217 }
3218 break;
3219 case OP_SUB_OVF_CARRY: {
3220 CHECK_SRCDST_NCOM;
3221 s390_lhi (code, s390_r0, 0);
3222 s390_lr (code, s390_r1, s390_r0);
3223 s390_slbr (code, s390_r0, s390_r1);
3224 s390_sr (code, ins->dreg, src2);
3225 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3226 s390_ar (code, ins->dreg, s390_r0);
3227 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3228 }
3229 break;
3230 case OP_SUB_OVF_UN_CARRY: {
3231 CHECK_SRCDST_NCOM;
3232 s390_slbr (code, ins->dreg, src2);
3233 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3234 }
3235 break;
3236 case OP_IAND: {
3237 if (ins->sreg1 == ins->dreg) {
3238 s390_nr (code, ins->dreg, ins->sreg2);
3239 }
3240 else {
3241 if (ins->sreg2 == ins->dreg) {
3242 s390_nr (code, ins->dreg, ins->sreg1);
3243 }
3244 else {
3245 s390_lr (code, ins->dreg, ins->sreg1);
3246 s390_nr (code, ins->dreg, ins->sreg2);
3247 }
3248 }
3249 }
3250 break;
3251 case OP_AND_IMM:
3252 case OP_IAND_IMM: {
3253 if (s390_is_imm16 (ins->inst_imm)) {
3254 s390_lhi (code, s390_r0, ins->inst_imm);
3255 if (ins->dreg != ins->sreg1) {
3256 s390_lr (code, ins->dreg, ins->sreg1);
3257 }
3258 s390_nr (code, ins->dreg, s390_r0);
3259 } else {
3260 s390_basr (code, s390_r13, 0);
3261 s390_j (code, 4);
3262 s390_word (code, ins->inst_imm);
3263 if (ins->dreg != ins->sreg1) {
3264 s390_lr (code, ins->dreg, ins->sreg1);
3265 }
3266 s390_n (code, ins->dreg, 0, s390_r13, 4);
3267 }
3268 }
3269 break;
3270 case OP_IDIV: {
3271 s390_lr (code, s390_r0, ins->sreg1);
3272 s390_srda (code, s390_r0, 0, 32);
3273 s390_dr (code, s390_r0, ins->sreg2);
3274 s390_lr (code, ins->dreg, s390_r1);
3275 }
3276 break;
3277 case OP_IDIV_UN: {
3278 s390_lr (code, s390_r0, ins->sreg1);
3279 s390_srdl (code, s390_r0, 0, 32);
3280 s390_dlr (code, s390_r0, ins->sreg2);
3281 s390_lr (code, ins->dreg, s390_r1);
3282 }
3283 break;
3284 case OP_IREM: {
3285 s390_lr (code, s390_r0, ins->sreg1);
3286 s390_srda (code, s390_r0, 0, 32);
3287 s390_dr (code, s390_r0, ins->sreg2);
3288 s390_lr (code, ins->dreg, s390_r0);
3289 break;
3290 case OP_IREM_UN:
3291 s390_lr (code, s390_r0, ins->sreg1);
3292 s390_srdl (code, s390_r0, 0, 32);
3293 s390_dlr (code, s390_r0, ins->sreg2);
3294 s390_lr (code, ins->dreg, s390_r0);
3295 }
3296 break;
3297 case OP_IOR: {
3298 if (ins->sreg1 == ins->dreg) {
3299 s390_or (code, ins->dreg, ins->sreg2);
3300 }
3301 else {
3302 if (ins->sreg2 == ins->dreg) {
3303 s390_or (code, ins->dreg, ins->sreg1);
3304 }
3305 else {
3306 s390_lr (code, ins->dreg, ins->sreg1);
3307 s390_or (code, ins->dreg, ins->sreg2);
3308 }
3309 }
3310 }
3311 break;
3312 case OP_OR_IMM:
3313 case OP_IOR_IMM: {
3314 if (s390_is_imm16 (ins->inst_imm)) {
3315 s390_lhi (code, s390_r0, ins->inst_imm);
3316 if (ins->dreg != ins->sreg1) {
3317 s390_lr (code, ins->dreg, ins->sreg1);
3318 }
3319 s390_or (code, ins->dreg, s390_r0);
3320 } else {
3321 s390_basr (code, s390_r13, 0);
3322 s390_j (code, 4);
3323 s390_word (code, ins->inst_imm);
3324 if (ins->dreg != ins->sreg1) {
3325 s390_lr (code, ins->dreg, ins->sreg1);
3326 }
3327 s390_o (code, ins->dreg, 0, s390_r13, 4);
3328 }
3329 }
3330 break;
3331 case OP_IXOR: {
3332 if (ins->sreg1 == ins->dreg) {
3333 s390_xr (code, ins->dreg, ins->sreg2);
3334 }
3335 else {
3336 if (ins->sreg2 == ins->dreg) {
3337 s390_xr (code, ins->dreg, ins->sreg1);
3338 }
3339 else {
3340 s390_lr (code, ins->dreg, ins->sreg1);
3341 s390_xr (code, ins->dreg, ins->sreg2);
3342 }
3343 }
3344 }
3345 break;
3346 case OP_XOR_IMM:
3347 case OP_IXOR_IMM: {
3348 if (s390_is_imm16 (ins->inst_imm)) {
3349 s390_lhi (code, s390_r0, ins->inst_imm);
3350 if (ins->dreg != ins->sreg1) {
3351 s390_lr (code, ins->dreg, ins->sreg1);
3352 }
3353 s390_xr (code, ins->dreg, s390_r0);
3354 } else {
3355 s390_basr (code, s390_r13, 0);
3356 s390_j (code, 4);
3357 s390_word (code, ins->inst_imm);
3358 if (ins->dreg != ins->sreg1) {
3359 s390_lr (code, ins->dreg, ins->sreg1);
3360 }
3361 s390_x (code, ins->dreg, 0, s390_r13, 4);
3362 }
3363 }
3364 break;
3365 case OP_ISHL: {
3366 CHECK_SRCDST_NCOM;
3367 s390_sll (code, ins->dreg, src2, 0);
3368 }
3369 break;
3370 case OP_SHL_IMM:
3371 case OP_ISHL_IMM: {
3372 if (ins->sreg1 != ins->dreg) {
3373 s390_lr (code, ins->dreg, ins->sreg1);
3374 }
3375 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3376 }
3377 break;
3378 case OP_ISHR: {
3379 CHECK_SRCDST_NCOM;
3380 s390_sra (code, ins->dreg, src2, 0);
3381 }
3382 break;
3383 case OP_SHR_IMM:
3384 case OP_ISHR_IMM: {
3385 if (ins->sreg1 != ins->dreg) {
3386 s390_lr (code, ins->dreg, ins->sreg1);
3387 }
3388 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3389 }
3390 break;
3391 case OP_SHR_UN_IMM:
3392 case OP_ISHR_UN_IMM: {
3393 if (ins->sreg1 != ins->dreg) {
3394 s390_lr (code, ins->dreg, ins->sreg1);
3395 }
3396 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3397 }
3398 break;
3399 case OP_ISHR_UN: {
3400 CHECK_SRCDST_NCOM;
3401 s390_srl (code, ins->dreg, src2, 0);
3402 }
3403 break;
3404 case OP_INOT: {
3405 if (ins->sreg1 != ins->dreg) {
3406 s390_lr (code, ins->dreg, ins->sreg1);
3407 }
3408 s390_lhi (code, s390_r0, -1);
3409 s390_xr (code, ins->dreg, s390_r0);
3410 }
3411 break;
3412 case OP_INEG: {
3413 s390_lcr (code, ins->dreg, ins->sreg1);
3414 }
3415 break;
3416 case OP_S390_LNEG: {
3417 /* From gcc code */
3418 g_assert (ins->dreg + 1 != ins->sreg1);
3419 s390_lcr (code, ins->dreg + 1, ins->sreg2);
3420 s390_lcr (code, ins->dreg, ins->sreg1);
3421 s390_je (code, 3);
3422 s390_bctr (code, ins->dreg + 1, 0);
3423 }
3424 break;
3425 case OP_IMUL: {
3426 if (ins->sreg1 == ins->dreg) {
3427 s390_msr (code, ins->dreg, ins->sreg2);
3428 }
3429 else {
3430 if (ins->sreg2 == ins->dreg) {
3431 s390_msr (code, ins->dreg, ins->sreg1);
3432 }
3433 else {
3434 s390_lr (code, ins->dreg, ins->sreg1);
3435 s390_msr (code, ins->dreg, ins->sreg2);
3436 }
3437 }
3438 }
3439 break;
3440 case OP_MUL_IMM:
3441 case OP_IMUL_IMM: {
3442 if (s390_is_imm16 (ins->inst_imm)) {
3443 s390_lhi (code, s390_r13, ins->inst_imm);
3444 } else {
3445 s390_basr (code, s390_r13, 0);
3446 s390_j (code, 4);
3447 s390_word (code, ins->inst_imm);
3448 // if (ins->dreg != ins->sreg1) {
3449 // s390_lr (code, ins->dreg, ins->sreg1);
3450 // }
3451 s390_l (code, s390_r13, 0, s390_r13, 4);
3452 }
3453 if (ins->dreg != ins->sreg1) {
3454 s390_lr (code, ins->dreg, ins->sreg1);
3455 }
3456 s390_msr (code, ins->dreg, s390_r13);
3457 }
3458 break;
3459 case OP_IMUL_OVF: {
3460 short int *o[2];
3461 s390_ltr (code, s390_r1, ins->sreg1);
3462 s390_jz (code, 0); CODEPTR(code, o[0]);
3463 s390_ltr (code, s390_r0, ins->sreg2);
3464 s390_jnz (code, 6);
3465 s390_lhi (code, s390_r1, 0);
3466 s390_j (code, 0); CODEPTR(code, o[1]);
3467 s390_xr (code, s390_r0, s390_r1);
3468 s390_msr (code, s390_r1, ins->sreg2);
3469 s390_xr (code, s390_r0, s390_r1);
3470 s390_srl (code, s390_r0, 0, 31);
3471 s390_ltr (code, s390_r0, s390_r0);
3472 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3473 PTRSLOT (code, o[0]);
3474 PTRSLOT (code, o[1]);
3475 s390_lr (code, ins->dreg, s390_r1);
3476 }
3477 break;
3478 case OP_IMUL_OVF_UN: {
3479 s390_lhi (code, s390_r0, 0);
3480 s390_lr (code, s390_r1, ins->sreg1);
3481 s390_mlr (code, s390_r0, ins->sreg2);
3482 s390_ltr (code, s390_r0, s390_r0);
3483 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3484 s390_lr (code, ins->dreg, s390_r1);
3485 }
3486 break;
3487 case OP_LMUL: {
3488 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3489 s390_srda (code, s390_r0, 0, 32);
3490 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3491 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3492 s390_srl (code, s390_r0, 0, 31);
3493 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3494 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3495 s390_srl (code, s390_r13, 0, 31);
3496 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3497 s390_ar (code, s390_r0, s390_r13);
3498 s390_st (code, s390_r0, 0, ins->dreg, 0);
3499 s390_st (code, s390_r1, 0, ins->dreg, 4);
3500 }
3501 break;
3502 case OP_ICONST: {
3503 if (s390_is_imm16(ins->inst_c0)) {
3504 s390_lhi (code, ins->dreg, ins->inst_c0);
3505 } else {
3506 s390_basr (code, s390_r13, 0);
3507 s390_j (code, 4);
3508 s390_word (code, ins->inst_c0);
3509 s390_l (code, ins->dreg, 0, s390_r13, 4);
3510 }
3511 }
3512 break;
3513 case OP_AOTCONST: {
3514 s390_basr (code, s390_r13, 0);
3515 s390_j (code, 4);
3516 mono_add_patch_info (cfg, code - cfg->native_code,
3517 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3518 s390_word (code, 0);
3519 s390_l (code,ins->dreg, 0, s390_r13, 4);
3520 }
3521 break;
3522 case OP_JUMP_TABLE: {
3523 mono_add_patch_info (cfg, code - cfg->native_code,
3524 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3525 s390_basr (code, s390_r13, 0);
3526 s390_j (code, 4);
3527 s390_word (code, 0);
3528 s390_l (code, ins->dreg, 0, s390_r13, 4);
3529 }
3530 break;
3531 case OP_ICONV_TO_I4:
3532 case OP_ICONV_TO_U4:
3533 case OP_MOVE: {
3534 if (ins->dreg != ins->sreg1) {
3535 s390_lr (code, ins->dreg, ins->sreg1);
3536 }
3537 }
3538 break;
3539 case OP_SETLRET: {
3540 int saved = ins->sreg1;
3541 if (ins->sreg1 == s390_r2) {
3542 s390_lr (code, s390_r0, ins->sreg1);
3543 saved = s390_r0;
3544 }
3545 if (ins->sreg2 != s390_r2)
3546 s390_lr (code, s390_r2, ins->sreg2);
3547 if (saved != s390_r3)
3548 s390_lr (code, s390_r3, saved);
3549 break;
3550 }
3551 case OP_FMOVE: {
3552 if (ins->dreg != ins->sreg1) {
3553 s390_ldr (code, ins->dreg, ins->sreg1);
3554 }
3555 }
3556 break;
3557 case OP_S390_SETF4RET: {
3558 s390_ledbr (code, ins->dreg, ins->sreg1);
3559 }
3560 break;
3561 case OP_TLS_GET: {
3562 if (s390_is_imm16 (ins->inst_offset)) {
3563 s390_lhi (code, s390_r13, ins->inst_offset);
3564 } else {
3565 s390_bras (code, s390_r13, 0);
3566 s390_j (code, 4);
3567 s390_word (code, ins->inst_offset);
3568 s390_l (code, s390_r13, 0, s390_r13, 4);
3569 }
3570 s390_ear (code, s390_r1, 0);
3571 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
3572 }
3573 break;
3574 case OP_FCONV_TO_R4: {
3575 // FIXME:
3576 if (ins->dreg != ins->sreg1) {
3577 s390_ldr (code, ins->dreg, ins->sreg1);
3578 }
3579 /*
3580 NOT_IMPLEMENTED;
3581 if ((ins->next) &&
3582 (ins->next->opcode != OP_FMOVE) &&
3583 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3584 s390_ledbr (code, ins->dreg, ins->sreg1);
3585 */
3586 }
3587 break;
3588 case OP_JMP: {
3589 if (cfg->method->save_lmf)
3590 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3591
3592 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3593 code = emit_load_volatile_registers(code, cfg);
3594 }
3595
3596 code = backUpStackPtr(cfg, code, STK_BASE);
3597 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3598 mono_add_patch_info (cfg, code - cfg->native_code,
3599 MONO_PATCH_INFO_METHOD_JUMP,
3600 ins->inst_p0);
3601 s390_jcl (code, S390_CC_UN, 0);
3602 }
3603 break;
3604 case OP_CHECK_THIS: {
3605 /* ensure ins->sreg1 is not NULL */
3606 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3607 }
3608 break;
3609 case OP_ARGLIST: {
3610 int offset = cfg->sig_cookie + cfg->stack_usage;
3611
3612 if (s390_is_imm16 (offset))
3613 s390_lhi (code, s390_r0, offset);
3614 else {
3615 s390_basr (code, s390_r13, 0);
3616 s390_j (code, 4);
3617 s390_word (code, offset);
3618 s390_l (code, s390_r0, 0, s390_r13, 0);
3619 }
3620 s390_ar (code, s390_r0, cfg->frame_reg);
3621 s390_st (code, s390_r0, 0, ins->sreg1, 0);
3622 }
3623 break;
3624 case OP_FCALL: {
3625 call = (MonoCallInst*)ins;
3626 if (ins->flags & MONO_INST_HAS_METHOD)
3627 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3628 call->method);
3629 else
3630 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3631 call->fptr);
3632 s390_brasl (code, s390_r14, 0);
3633 if (call->signature->ret->type == MONO_TYPE_R4)
3634 s390_ldebr (code, s390_f0, s390_f0);
3635 }
3636 break;
3637 case OP_LCALL:
3638 case OP_VCALL:
3639 case OP_VCALL2:
3640 case OP_VOIDCALL:
3641 case OP_CALL: {
3642 call = (MonoCallInst*)ins;
3643 if (ins->flags & MONO_INST_HAS_METHOD)
3644 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3645 else
3646 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3647 s390_brasl (code, s390_r14, 0);
3648 }
3649 break;
3650 case OP_FCALL_REG: {
3651 call = (MonoCallInst*)ins;
3652 s390_lr (code, s390_r1, ins->sreg1);
3653 s390_basr (code, s390_r14, s390_r1);
3654 if (call->signature->ret->type == MONO_TYPE_R4)
3655 s390_ldebr (code, s390_f0, s390_f0);
3656 }
3657 break;
3658 case OP_LCALL_REG:
3659 case OP_VCALL_REG:
3660 case OP_VCALL2_REG:
3661 case OP_VOIDCALL_REG:
3662 case OP_CALL_REG: {
3663 s390_lr (code, s390_r1, ins->sreg1);
3664 s390_basr (code, s390_r14, s390_r1);
3665 }
3666 break;
3667 case OP_LCALL_MEMBASE:
3668 case OP_VCALL_MEMBASE:
3669 case OP_VCALL2_MEMBASE:
3670 case OP_VOIDCALL_MEMBASE:
3671 case OP_FCALL_MEMBASE:
3672 case OP_CALL_MEMBASE: {
3673 call = (MonoCallInst*)ins;
3674 if (s390_is_uimm12(ins->inst_offset))
3675 s390_l (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3676 else {
3677 if (s390_is_imm16(ins->inst_offset)) {
3678 s390_lhi (code, s390_r13, ins->inst_offset);
3679 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3680 } else {
3681 s390_basr (code, s390_r13, 0);
3682 s390_j (code, 4);
3683 s390_word (code, ins->inst_offset);
3684 s390_l (code, s390_r13, 0, s390_r13, 4);
3685 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3686 }
3687 }
3688 s390_basr (code, s390_r14, s390_r1);
3689 if (ins->opcode == OP_FCALL_MEMBASE && call->signature->ret->type == MONO_TYPE_R4)
3690 s390_ldebr (code, s390_f0, s390_f0);
3691 }
3692 break;
3693 case OP_LOCALLOC: {
3694 /*------------------------------------------*/
3695 /* To allocate space on the stack we have */
3696 /* to allow room for parameters passed in */
3697 /* calls, the backchain pointer and round */
3698 /* it to our stack alignment requirements */
3699 /*------------------------------------------*/
3700 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3701 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3702 s390_lr (code, s390_r1, ins->sreg1);
3703 if (ins->flags & MONO_INST_INIT)
3704 s390_lr (code, s390_r0, ins->sreg1);
3705 s390_ahi (code, s390_r1, 14);
3706 s390_srl (code, s390_r1, 0, 3);
3707 s390_sll (code, s390_r1, 0, 3);
3708 if (cfg->method->save_lmf) {
3709 /*----------------------------------*/
3710 /* we have to adjust lmf ebp value */
3711 /*----------------------------------*/
3712 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3713
3714 s390_lr (code, s390_r13, cfg->frame_reg);
3715 if (s390_is_uimm16(lmfOffset))
3716 s390_ahi (code, s390_r13, lmfOffset);
3717 else {
3718 s390_basr (code, s390_r14, 0);
3719 s390_j (code, 4);
3720 s390_word (code, lmfOffset);
3721 s390_a (code, s390_r13, 0, s390_r14, 4);
3722 }
3723 s390_lr (code, s390_r14, STK_BASE);
3724 s390_sr (code, s390_r14, s390_r1);
3725 s390_st (code, s390_r14, 0, s390_r13,
3726 G_STRUCT_OFFSET(MonoLMF, ebp));
3727 }
3728 s390_l (code, s390_r13, 0, STK_BASE, 0);
3729 s390_sr (code, STK_BASE, s390_r1);
3730 s390_st (code, s390_r13, 0, STK_BASE, 0);
3731 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3732 s390_srl (code, ins->dreg, 0, 3);
3733 s390_sll (code, ins->dreg, 0, 3);
3734 if (ins->flags & MONO_INST_INIT) {
3735 s390_lr (code, s390_r1, s390_r0);
3736 s390_lr (code, s390_r0, ins->dreg);
3737 s390_lr (code, s390_r14, s390_r12);
3738 s390_lhi (code, s390_r13, 0);
3739 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3740 s390_jo (code, -2);
3741 s390_lr (code, s390_r12, s390_r14);
3742 }
3743 }
3744 break;
3745 case OP_THROW: {
3746 s390_lr (code, s390_r2, ins->sreg1);
3747 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3748 (gpointer)"mono_arch_throw_exception");
3749 s390_brasl (code, s390_r14, 0);
3750 }
3751 break;
3752 case OP_RETHROW: {
3753 s390_lr (code, s390_r2, ins->sreg1);
3754 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3755 (gpointer)"mono_arch_rethrow_exception");
3756 s390_brasl (code, s390_r14, 0);
3757 }
3758 break;
3759 case OP_START_HANDLER: {
3760 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3761 if (s390_is_uimm12 (spvar->inst_offset)) {
3762 s390_st (code, s390_r14, 0,
3763 spvar->inst_basereg,
3764 spvar->inst_offset);
3765 } else {
3766 s390_basr (code, s390_r13, 0);
3767 s390_j (code, 4);
3768 s390_word (code, spvar->inst_offset);
3769 s390_l (code, s390_r13, 0, s390_r13, 4);
3770 s390_st (code, s390_r14, s390_r13,
3771 spvar->inst_basereg, 0);
3772 }
3773 }
3774 break;
3775 case OP_ENDFILTER: {
3776 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3777 if (ins->sreg1 != s390_r2)
3778 s390_lr (code, s390_r2, ins->sreg1);
3779 if (s390_is_uimm12 (spvar->inst_offset)) {
3780 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3781 spvar->inst_offset);
3782 } else {
3783 s390_basr (code, s390_r13, 0);
3784 s390_j (code, 4);
3785 s390_word (code, spvar->inst_offset);
3786 s390_l (code, s390_r13, 0, s390_r13, 4);
3787 s390_l (code, s390_r14, s390_r13,
3788 spvar->inst_basereg, 0);
3789 }
3790 s390_br (code, s390_r14);
3791 }
3792 break;
3793 case OP_ENDFINALLY: {
3794 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3795 if (s390_is_uimm12 (spvar->inst_offset)) {
3796 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3797 spvar->inst_offset);
3798 } else {
3799 s390_basr (code, s390_r13, 0);
3800 s390_j (code, 4);
3801 s390_word (code, spvar->inst_offset);
3802 s390_l (code, s390_r13, 0, s390_r13, 4);
3803 s390_l (code, s390_r14, s390_r13,
3804 spvar->inst_basereg, 0);
3805 }
3806 s390_br (code, s390_r14);
3807 }
3808 break;
3809 case OP_CALL_HANDLER: {
3810 mono_add_patch_info (cfg, code-cfg->native_code,
3811 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3812 s390_brasl (code, s390_r14, 0);
3813 }
3814 break;
3815 case OP_LABEL: {
3816 ins->inst_c0 = code - cfg->native_code;
3817 }
3818 break;
3819 case OP_RELAXED_NOP:
3820 case OP_NOP:
3821 case OP_DUMMY_USE:
3822 case OP_DUMMY_STORE:
3823 case OP_NOT_REACHED:
3824 case OP_NOT_NULL: {
3825 }
3826 break;
3827 case OP_BR:
3828 EMIT_UNCOND_BRANCH(ins);
3829 break;
3830 case OP_BR_REG: {
3831 s390_br (code, ins->sreg1);
3832 }
3833 break;
3834 case OP_CEQ:
3835 case OP_ICEQ: {
3836 s390_lhi (code, ins->dreg, 1);
3837 s390_jz (code, 4);
3838 s390_lhi (code, ins->dreg, 0);
3839 }
3840 break;
3841 case OP_CLT:
3842 case OP_ICLT: {
3843 s390_lhi (code, ins->dreg, 1);
3844 s390_jl (code, 4);
3845 s390_lhi (code, ins->dreg, 0);
3846 }
3847 break;
3848 case OP_CLT_UN:
3849 case OP_ICLT_UN: {
3850 s390_lhi (code, ins->dreg, 1);
3851 s390_jlo (code, 4);
3852 s390_lhi (code, ins->dreg, 0);
3853 }
3854 break;
3855 case OP_CGT:
3856 case OP_ICGT: {
3857 s390_lhi (code, ins->dreg, 1);
3858 s390_jh (code, 4);
3859 s390_lhi (code, ins->dreg, 0);
3860 }
3861 break;
3862 case OP_CGT_UN:
3863 case OP_ICGT_UN: {
3864 s390_lhi (code, ins->dreg, 1);
3865 s390_jho (code, 4);
3866 s390_lhi (code, ins->dreg, 0);
3867 }
3868 break;
3869 case OP_COND_EXC_EQ:
3870 case OP_COND_EXC_IEQ:
3871 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3872 break;
3873 case OP_COND_EXC_NE_UN:
3874 case OP_COND_EXC_INE_UN:
3875 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3876 break;
3877 case OP_COND_EXC_LT:
3878 case OP_COND_EXC_ILT:
3879 case OP_COND_EXC_LT_UN:
3880 case OP_COND_EXC_ILT_UN:
3881 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3882 break;
3883 case OP_COND_EXC_GT:
3884 case OP_COND_EXC_IGT:
3885 case OP_COND_EXC_GT_UN:
3886 case OP_COND_EXC_IGT_UN:
3887 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3888 break;
3889 case OP_COND_EXC_GE:
3890 case OP_COND_EXC_IGE:
3891 case OP_COND_EXC_GE_UN:
3892 case OP_COND_EXC_IGE_UN:
3893 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3894 break;
3895 case OP_COND_EXC_LE:
3896 case OP_COND_EXC_ILE:
3897 case OP_COND_EXC_LE_UN:
3898 case OP_COND_EXC_ILE_UN:
3899 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3900 break;
3901 case OP_COND_EXC_OV:
3902 case OP_COND_EXC_IOV:
3903 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3904 break;
3905 case OP_COND_EXC_NO:
3906 case OP_COND_EXC_INO:
3907 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3908 break;
3909 case OP_COND_EXC_C:
3910 case OP_COND_EXC_IC:
3911 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3912 break;
3913 case OP_COND_EXC_NC:
3914 case OP_COND_EXC_INC:
3915 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3916 break;
3917 case OP_IBEQ:
3918 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3919 break;
3920 case OP_IBNE_UN:
3921 EMIT_COND_BRANCH (ins, S390_CC_NE);
3922 break;
3923 case OP_IBLT:
3924 case OP_IBLT_UN:
3925 EMIT_COND_BRANCH (ins, S390_CC_LT);
3926 break;
3927 case OP_IBGT:
3928 case OP_IBGT_UN:
3929 EMIT_COND_BRANCH (ins, S390_CC_GT);
3930 break;
3931 case OP_IBGE:
3932 case OP_IBGE_UN:
3933 EMIT_COND_BRANCH (ins, S390_CC_GE);
3934 break;
3935 case OP_IBLE:
3936 case OP_IBLE_UN:
3937 EMIT_COND_BRANCH (ins, S390_CC_LE);
3938 break;
3939
3940 /* floating point opcodes */
3941 case OP_R8CONST: {
3942 if (*((float *) ins->inst_p0) == 0) {
3943 s390_lzdr (code, ins->dreg);
3944 } else {
3945 s390_basr (code, s390_r13, 0);
3946 s390_j (code, 4);
3947 s390_word (code, ins->inst_p0);
3948 s390_l (code, s390_r13, 0, s390_r13, 4);
3949 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3950 }
3951 }
3952 break;
3953 case OP_R4CONST: {
3954 if (*((float *) ins->inst_p0) == 0) {
3955 s390_lzdr (code, ins->dreg);
3956 } else {
3957 s390_basr (code, s390_r13, 0);
3958 s390_j (code, 4);
3959 s390_word (code, ins->inst_p0);
3960 s390_l (code, s390_r13, 0, s390_r13, 4);
3961 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3962 }
3963 }
3964 break;
3965 case OP_STORER8_MEMBASE_REG: {
3966 if (s390_is_uimm12(ins->inst_offset)) {
3967 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3968 } else {
3969 s390_basr (code, s390_r13, 0);
3970 s390_j (code, 4);
3971 s390_word (code, ins->inst_offset);
3972 s390_l (code, s390_r13, 0, s390_r13, 4);
3973 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3974 }
3975 }
3976 break;
3977 case OP_LOADR8_MEMBASE: {
3978 if (s390_is_uimm12(ins->inst_offset)) {
3979 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3980 } else {
3981 s390_basr (code, s390_r13, 0);
3982 s390_j (code, 4);
3983 s390_word (code, ins->inst_offset);
3984 s390_l (code, s390_r13, 0, s390_r13, 4);
3985 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3986 }
3987 }
3988 break;
3989 case OP_STORER4_MEMBASE_REG: {
3990 if (s390_is_uimm12(ins->inst_offset)) {
3991 s390_ledbr(code, s390_f15, ins->sreg1);
3992 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
3993 } else {
3994 s390_basr (code, s390_r13, 0);
3995 s390_j (code, 4);
3996 s390_word (code, ins->inst_offset);
3997 s390_l (code, s390_r13, 0, s390_r13, 4);
3998 s390_ledbr(code, s390_f15, ins->sreg1);
3999 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
4000 }
4001 }
4002 break;
4003 case OP_LOADR4_MEMBASE: {
4004 if (s390_is_uimm12(ins->inst_offset)) {
4005 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4006 } else {
4007 s390_basr (code, s390_r13, 0);
4008 s390_j (code, 4);
4009 s390_word (code, ins->inst_offset);
4010 s390_l (code, s390_r13, 0, s390_r13, 4);
4011 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4012 }
4013 }
4014 break;
4015 case OP_ICONV_TO_R_UN: {
4016 s390_cdfbr (code, ins->dreg, ins->sreg1);
4017 s390_ltr (code, ins->sreg1, ins->sreg1);
4018 s390_jnl (code, 12);
4019 s390_basr (code, s390_r13, 0);
4020 s390_j (code, 6);
4021 s390_word (code, 0x41f00000);
4022 s390_word (code, 0);
4023 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4024 }
4025 break;
4026 case OP_ICONV_TO_R4: {
4027 s390_cdfbr (code, ins->dreg, ins->sreg1);
4028 }
4029 break;
4030 case OP_ICONV_TO_R8: {
4031 s390_cdfbr (code, ins->dreg, ins->sreg1);
4032 }
4033 break;
4034 case OP_FCONV_TO_I1:
4035 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4036 break;
4037 case OP_FCONV_TO_U1:
4038 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4039 break;
4040 case OP_FCONV_TO_I2:
4041 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4042 break;
4043 case OP_FCONV_TO_U2:
4044 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4045 break;
4046 case OP_FCONV_TO_I4:
4047 case OP_FCONV_TO_I:
4048 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4049 break;
4050 case OP_FCONV_TO_U4:
4051 case OP_FCONV_TO_U:
4052 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4053 break;
4054 case OP_FCONV_TO_I8:
4055 case OP_FCONV_TO_U8:
4056 g_assert_not_reached ();
4057 /* Implemented as helper calls */
4058 break;
4059 case OP_LCONV_TO_R_UN:
4060 g_assert_not_reached ();
4061 /* Implemented as helper calls */
4062 break;
4063 case OP_LCONV_TO_OVF_I:
4064 case OP_LCONV_TO_OVF_I4_2: {
4065 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4066 short int *o[5];
4067 s390_ltr (code, ins->sreg1, ins->sreg1);
4068 s390_jnl (code, 0); CODEPTR(code, o[0]);
4069 s390_ltr (code, ins->sreg2, ins->sreg2);
4070 s390_jnl (code, 0); CODEPTR(code, o[1]);
4071 s390_lhi (code, s390_r13, -1);
4072 s390_cr (code, ins->sreg2, s390_r13);
4073 s390_jnz (code, 0); CODEPTR(code, o[2]);
4074 s390_j (code, 0); CODEPTR(code, o[3]);
4075 PTRSLOT(code, o[0]);
4076 s390_ltr (code, ins->sreg2, ins->sreg2);
4077 s390_jz (code, 0); CODEPTR(code, o[4]);
4078 PTRSLOT(code, o[1]);
4079 PTRSLOT(code, o[2]);
4080 mono_add_patch_info (cfg, code - cfg->native_code,
4081 MONO_PATCH_INFO_EXC, "OverflowException");
4082 s390_brasl (code, s390_r14, 0);
4083 PTRSLOT(code, o[3]);
4084 PTRSLOT(code, o[4]);
4085 if (ins->dreg != ins->sreg1)
4086 s390_lr (code, ins->dreg, ins->sreg1);
4087 }
4088 break;
4089 case OP_SQRT: {
4090 s390_sqdbr (code, ins->dreg, ins->sreg1);
4091 }
4092 break;
4093 case OP_FADD: {
4094 CHECK_SRCDST_COM_F;
4095 s390_adbr (code, ins->dreg, src2);
4096 }
4097 break;
4098 case OP_FSUB: {
4099 CHECK_SRCDST_NCOM_F;
4100 s390_sdbr (code, ins->dreg, src2);
4101 }
4102 break;
4103 case OP_FMUL: {
4104 CHECK_SRCDST_COM_F;
4105 s390_mdbr (code, ins->dreg, src2);
4106 }
4107 break;
4108 case OP_FDIV: {
4109 CHECK_SRCDST_NCOM_F;
4110 s390_ddbr (code, ins->dreg, src2);
4111 }
4112 break;
4113 case OP_FNEG: {
4114 s390_lcdbr (code, ins->dreg, ins->sreg1);
4115 }
4116 break;
4117 case OP_FREM: {
4118 CHECK_SRCDST_NCOM_F;
4119 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4120 }
4121 break;
4122 case OP_FCOMPARE: {
4123 s390_cdbr (code, ins->sreg1, ins->sreg2);
4124 }
4125 break;
4126 case OP_FCEQ: {
4127 s390_cdbr (code, ins->sreg1, ins->sreg2);
4128 s390_lhi (code, ins->dreg, 1);
4129 s390_je (code, 4);
4130 s390_lhi (code, ins->dreg, 0);
4131 }
4132 break;
4133 case OP_FCLT: {
4134 s390_cdbr (code, ins->sreg1, ins->sreg2);
4135 s390_lhi (code, ins->dreg, 1);
4136 s390_jl (code, 4);
4137 s390_lhi (code, ins->dreg, 0);
4138 }
4139 break;
4140 case OP_FCLT_UN: {
4141 s390_cdbr (code, ins->sreg1, ins->sreg2);
4142 s390_lhi (code, ins->dreg, 1);
4143 s390_jlo (code, 4);
4144 s390_lhi (code, ins->dreg, 0);
4145 }
4146 break;
4147 case OP_FCGT: {
4148 s390_cdbr (code, ins->sreg1, ins->sreg2);
4149 s390_lhi (code, ins->dreg, 1);
4150 s390_jh (code, 4);
4151 s390_lhi (code, ins->dreg, 0);
4152 }
4153 break;
4154 case OP_FCGT_UN: {
4155 s390_cdbr (code, ins->sreg1, ins->sreg2);
4156 s390_lhi (code, ins->dreg, 1);
4157 s390_jho (code, 4);
4158 s390_lhi (code, ins->dreg, 0);
4159 }
4160 break;
4161 case OP_FBEQ: {
4162 short *o;
4163 s390_jo (code, 0); CODEPTR(code, o);
4164 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4165 PTRSLOT(code, o);
4166 }
4167 break;
4168 case OP_FBNE_UN:
4169 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4170 break;
4171 case OP_FBLT: {
4172 short *o;
4173 s390_jo (code, 0); CODEPTR(code, o);
4174 EMIT_COND_BRANCH (ins, S390_CC_LT);
4175 PTRSLOT(code, o);
4176 }
4177 break;
4178 case OP_FBLT_UN:
4179 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4180 break;
4181 case OP_FBGT: {
4182 short *o;
4183 s390_jo (code, 0); CODEPTR(code, o);
4184 EMIT_COND_BRANCH (ins, S390_CC_GT);
4185 PTRSLOT(code, o);
4186 }
4187 break;
4188 case OP_FBGT_UN:
4189 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4190 break;
4191 case OP_FBGE: {
4192 short *o;
4193 s390_jo (code, 0); CODEPTR(code, o);
4194 EMIT_COND_BRANCH (ins, S390_CC_GE);
4195 PTRSLOT(code, o);
4196 }
4197 break;
4198 case OP_FBGE_UN:
4199 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4200 break;
4201 case OP_FBLE: {
4202 short *o;
4203 s390_jo (code, 0); CODEPTR(code, o);
4204 EMIT_COND_BRANCH (ins, S390_CC_LE);
4205 PTRSLOT(code, o);
4206 }
4207 break;
4208 case OP_FBLE_UN:
4209 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4210 break;
4211 case OP_CKFINITE: {
4212 short *o;
4213 s390_lhi (code, s390_r13, 0x7f);
4214 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4215 s390_jz (code, 0); CODEPTR(code, o);
4216 mono_add_patch_info (cfg, code - cfg->native_code,
4217 MONO_PATCH_INFO_EXC, "ArithmeticException");
4218 s390_brasl (code, s390_r14,0);
4219 PTRSLOT(code, o);
4220 }
4221 break;
4222 case OP_S390_MOVE: {
4223 if (ins->backend.size > 0) {
4224 if (ins->backend.size <= 256) {
4225 s390_mvc (code, ins->backend.size, ins->dreg,
4226 ins->inst_offset, ins->sreg1, ins->inst_imm);
4227 } else {
4228 s390_lr (code, s390_r0, ins->dreg);
4229 if (s390_is_imm16 (ins->inst_offset)) {
4230 s390_ahi (code, s390_r0, ins->inst_offset);
4231 } else {
4232 s390_basr (code, s390_r13, 0);
4233 s390_j (code, 4);
4234 s390_word (code, ins->inst_offset);
4235 s390_a (code, s390_r0, 0, s390_r13, 4);
4236 }
4237 s390_lr (code, s390_r14, s390_r12);
4238 s390_lr (code, s390_r12, ins->sreg1);
4239 if (s390_is_imm16 (ins->inst_imm)) {
4240 s390_ahi (code, s390_r12, ins->inst_imm);
4241 } else {
4242 s390_basr (code, s390_r13, 0);
4243 s390_j (code, 4);
4244 s390_word (code, ins->inst_imm);
4245 s390_a (code, s390_r12, 0, s390_r13, 4);
4246 }
4247 s390_lr (code, s390_r1, ins->sreg1);
4248 s390_lr (code, s390_r13, s390_r1);
4249 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4250 s390_jo (code, -2);
4251 s390_lr (code, s390_r12, s390_r14);
4252 }
4253 }
4254 }
4255 break;
4256 case OP_ATOMIC_ADD_I4: {
4257 s390_lr (code, s390_r1, ins->sreg2);
4258 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4259 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4260 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4261 s390_jnz (code, -7);
4262 s390_lr (code, ins->dreg, s390_r1);
4263 }
4264 break;
4265 case OP_ATOMIC_ADD_NEW_I4: {
4266 s390_lr (code, s390_r1, ins->sreg2);
4267 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4268 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4269 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4270 s390_jnz (code, -7);
4271 s390_lr (code, ins->dreg, s390_r1);
4272 }
4273 break;
4274 case OP_ATOMIC_EXCHANGE_I4: {
4275 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4276 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4277 s390_jnz (code, -4);
4278 s390_lr (code, ins->dreg, s390_r0);
4279 }
4280 break;
4281 case OP_S390_BKCHAIN: {
4282 s390_lr (code, ins->dreg, ins->sreg1);
4283 if (s390_is_imm16 (cfg->stack_offset)) {
4284 s390_ahi (code, ins->dreg, cfg->stack_offset);
4285 } else {
4286 s390_basr (code, s390_r13, 0);
4287 s390_j (code, 6);
4288 s390_word (code, cfg->stack_offset);
4289 s390_a (code, ins->dreg, 0, s390_r13, 4);
4290 }
4291 }
4292 case OP_MEMORY_BARRIER: {
4293 }
4294 break;
4295 default:
4296 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4297 g_assert_not_reached ();
4298 }
4299
4300 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4301 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4302 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4303 g_assert_not_reached ();
4304 }
4305
4306 cpos += max_len;
4307
4308 last_ins = ins;
4309 last_offset = offset;
4310 }
4311
4312 cfg->code_len = code - cfg->native_code;
4313 }
4314
4315 /*========================= End of Function ========================*/
4316
4317 /*------------------------------------------------------------------*/
4318 /* */
4319 /* Name - mono_arch_register_lowlevel_calls */
4320 /* */
4321 /* Function - Register routines to help with --trace operation. */
4322 /* */
4323 /*------------------------------------------------------------------*/
4324
4325 void
4326 mono_arch_register_lowlevel_calls (void)
4327 {
4328 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4329 }
4330
4331 /*========================= End of Function ========================*/
4332
4333 /*------------------------------------------------------------------*/
4334 /* */
4335 /* Name - mono_arch_patch_code */
4336 /* */
4337 /* Function - Process the patch data created during the */
4338 /* instruction build process. This resolves jumps, */
4339 /* calls, variables etc. */
4340 /* */
4341 /*------------------------------------------------------------------*/
4342
4343 void
4344 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4345 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4346 {
4347 MonoJumpInfo *patch_info;
4348
4349 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4350 unsigned char *ip = patch_info->ip.i + code;
4351 gconstpointer target = NULL;
4352
4353 target = mono_resolve_patch_target (method, domain, code,
4354 patch_info, run_cctors);
4355
4356 switch (patch_info->type) {
4357 case MONO_PATCH_INFO_IP:
4358 case MONO_PATCH_INFO_EXC_NAME:
4359 case MONO_PATCH_INFO_LDSTR:
4360 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4361 case MONO_PATCH_INFO_LDTOKEN:
4362 case MONO_PATCH_INFO_EXC:
4363 continue;
4364 case MONO_PATCH_INFO_SWITCH:
4365 /*----------------------------------*/
4366 /* ip points at the basr r13,0/j +4 */
4367 /* instruction the vtable value */
4368 /* follows this (i.e. ip+6) */
4369 /*----------------------------------*/
4370 *((gconstpointer *)(ip+6)) = target;
4371 target = NULL;
4372 continue;
4373 case MONO_PATCH_INFO_METHODCONST:
4374 case MONO_PATCH_INFO_CLASS:
4375 case MONO_PATCH_INFO_IMAGE:
4376 case MONO_PATCH_INFO_FIELD:
4377 case MONO_PATCH_INFO_IID:
4378 target = S390_RELATIVE(target, ip);
4379 continue;
4380 case MONO_PATCH_INFO_R4:
4381 case MONO_PATCH_INFO_R8:
4382 case MONO_PATCH_INFO_METHOD_REL:
4383 g_assert_not_reached ();
4384 continue;
4385 default:
4386 target = S390_RELATIVE(target, ip);
4387 ip += 2;
4388 }
4389 s390_patch (ip, (guint32) target);
4390 }
4391 }
4392
4393 /*========================= End of Function ========================*/
4394
4395 /*------------------------------------------------------------------*/
4396 /* */
4397 /* Name - emit_load_volatile_registers */
4398 /* */
4399 /* Function - Create the instruction sequence for loading the */
4400 /* parameter registers for use with the 'tail' op. */
4401 /* */
4402 /* The register loading operations performed here */
4403 /* are the mirror of the store operations performed */
4404 /* in mono_arch_emit_prolog and need to be kept in */
4405 /* synchronization with it. */
4406 /* */
4407 /*------------------------------------------------------------------*/
4408
4409 guint8 *
4410 emit_load_volatile_registers (guint8 * code, MonoCompile *cfg)
4411 {
4412 MonoMethod *method = cfg->method;
4413 MonoMethodSignature *sig;
4414 MonoInst *inst;
4415 int pos, i;
4416 CallInfo *cinfo;
4417
4418 sig = mono_method_signature (method);
4419 pos = 0;
4420
4421 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4422
4423 if (cinfo->struct_ret) {
4424 ArgInfo *ainfo = &cinfo->ret;
4425 inst = cfg->vret_addr;
4426 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4427 }
4428
4429 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4430 ArgInfo *ainfo = cinfo->args + i;
4431 inst = cfg->args [pos];
4432
4433 if (inst->opcode == OP_REGVAR) {
4434 if (ainfo->regtype == RegTypeGeneral)
4435 s390_lr (code, ainfo->reg, inst->dreg);
4436 else if (ainfo->regtype == RegTypeFP) {
4437 if (inst->dreg != ainfo->reg) {
4438 if (ainfo->size == 4) {
4439 s390_ldebr (code, ainfo->reg, inst->dreg);
4440 } else {
4441 s390_ldr (code, ainfo->reg, inst->dreg);
4442 }
4443 }
4444 }
4445 else if (ainfo->regtype == RegTypeBase) {
4446 } else
4447 g_assert_not_reached ();
4448 } else {
4449 if (ainfo->regtype == RegTypeGeneral) {
4450 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4451 g_assert_not_reached();
4452 switch (ainfo->size) {
4453 case 1:
4454 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4455 break;
4456 case 2:
4457 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4458 break;
4459 case 8:
4460 s390_lm (code, ainfo->reg, ainfo->reg + 1,
4461 inst->inst_basereg, inst->inst_offset);
4462 break;
4463 default:
4464 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4465 }
4466 } else if (ainfo->regtype == RegTypeBase) {
4467 } else if (ainfo->regtype == RegTypeFP) {
4468 if (ainfo->size == 8)
4469 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4470 else if (ainfo->size == 4)
4471 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4472 else
4473 g_assert_not_reached ();
4474 } else if (ainfo->regtype == RegTypeStructByVal) {
4475 if (ainfo->reg != STK_BASE) {
4476 switch (ainfo->size) {
4477 case 1:
4478 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4479 break;
4480 case 2:
4481 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4482 break;
4483 case 4:
4484 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4485 break;
4486 case 8:
4487 s390_lm (code, ainfo->reg, ainfo->reg+1, inst->inst_basereg, inst->inst_offset);
4488 break;
4489 }
4490 }
4491 } else if (ainfo->regtype == RegTypeStructByAddr) {
4492 if (ainfo->reg != STK_BASE) {
4493 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4494 }
4495 } else
4496 g_assert_not_reached ();
4497 }
4498 pos++;
4499 }
4500
4501 return code;
4502 }
4503
4504 /*========================= End of Function ========================*/
4505
4506 /*------------------------------------------------------------------*/
4507 /* */
4508 /* Name - mono_arch_emit_prolog */
4509 /* */
4510 /* Function - Create the instruction sequence for a function */
4511 /* prolog. */
4512 /* */
4513 /*------------------------------------------------------------------*/
4514
4515 guint8 *
4516 mono_arch_emit_prolog (MonoCompile *cfg)
4517 {
4518 MonoMethod *method = cfg->method;
4519 MonoBasicBlock *bb;
4520 MonoMethodSignature *sig;
4521 MonoInst *inst;
4522 int alloc_size, pos, max_offset, i;
4523 guint8 *code;
4524 CallInfo *cinfo;
4525 int tracing = 0;
4526 int lmfOffset; \
4527
4528 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4529 tracing = 1;
4530
4531 cfg->code_size = 1024;
4532 cfg->native_code = code = g_malloc (cfg->code_size);
4533
4534 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4535
4536 if (cfg->arch.bkchain_reg != -1)
4537 s390_lr (code, cfg->arch.bkchain_reg, STK_BASE);
4538
4539 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4540 cfg->used_int_regs |= 1 << 11;
4541 }
4542
4543 alloc_size = cfg->stack_offset;
4544
4545 cfg->stack_usage = alloc_size;
4546 s390_lr (code, s390_r11, STK_BASE);
4547 if (s390_is_uimm16 (alloc_size)) {
4548 s390_ahi (code, STK_BASE, -alloc_size);
4549 } else {
4550 int stackSize = alloc_size;
4551 while (stackSize > 32767) {
4552 s390_ahi (code, STK_BASE, -32767);
4553 stackSize -= 32767;
4554 }
4555 s390_ahi (code, STK_BASE, -stackSize);
4556 }
4557 s390_st (code, s390_r11, 0, STK_BASE, 0);
4558
4559 if (cfg->frame_reg != STK_BASE)
4560 s390_lr (code, s390_r11, STK_BASE);
4561
4562 /* compute max_offset in order to use short forward jumps
4563 * we always do it on s390 because the immediate displacement
4564 * for jumps is too small
4565 */
4566 max_offset = 0;
4567 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4568 MonoInst *ins = bb->code;
4569 bb->max_offset = max_offset;
4570
4571 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4572 max_offset += 6;
4573
4574 MONO_BB_FOR_EACH_INS (bb, ins)
4575 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4576 }
4577
4578 /* load arguments allocated to register from the stack */
4579 sig = mono_method_signature (method);
4580 pos = 0;
4581
4582 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4583
4584 if (cinfo->struct_ret) {
4585 ArgInfo *ainfo = &cinfo->ret;
4586 inst = cfg->vret_addr;
4587 inst->backend.size = ainfo->vtsize;
4588 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4589 }
4590
4591 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4592 ArgInfo *ainfo = cinfo->args + i;
4593 inst = cfg->args [pos];
4594
4595 if (inst->opcode == OP_VTARG_ADDR)
4596 inst = inst->inst_left;
4597
4598 if (inst->opcode == OP_REGVAR) {
4599 if (ainfo->regtype == RegTypeGeneral)
4600 s390_lr (code, inst->dreg, ainfo->reg);
4601 else if (ainfo->regtype == RegTypeFP) {
4602 if (inst->dreg != ainfo->reg) {
4603 if (ainfo->size == 4) {
4604 s390_ledbr (code, inst->dreg, ainfo->reg);
4605 } else {
4606 s390_ldr (code, inst->dreg, ainfo->reg);
4607 }
4608 }
4609 }
4610 else if (ainfo->regtype == RegTypeBase) {
4611 s390_lr (code, s390_r13, STK_BASE);
4612 s390_ahi (code, s390_r13, alloc_size);
4613 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4614 } else
4615 g_assert_not_reached ();
4616
4617 if (cfg->verbose_level > 2)
4618 g_print ("Argument %d assigned to register %s\n",
4619 pos, mono_arch_regname (inst->dreg));
4620 } else {
4621 if (ainfo->regtype == RegTypeGeneral) {
4622 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4623 g_assert_not_reached();
4624 switch (ainfo->size) {
4625 case 1:
4626 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4627 break;
4628 case 2:
4629 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4630 break;
4631 case 8:
4632 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4633 inst->inst_basereg, inst->inst_offset);
4634 break;
4635 default:
4636 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4637 }
4638 } else if (ainfo->regtype == RegTypeBase) {
4639 } else if (ainfo->regtype == RegTypeFP) {
4640 if (ainfo->size == 8)
4641 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4642 else if (ainfo->size == 4)
4643 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4644 else
4645 g_assert_not_reached ();
4646 } else if (ainfo->regtype == RegTypeStructByVal) {
4647 int doffset = inst->inst_offset;
4648 int reg;
4649 if (ainfo->reg != STK_BASE)
4650 reg = ainfo->reg;
4651 else {
4652 reg = s390_r0;
4653 s390_lr (code, s390_r13, STK_BASE);
4654 s390_ahi (code, s390_r13, alloc_size);
4655 }
4656 switch (ainfo->size) {
4657 case 1:
4658 if (ainfo->reg == STK_BASE)
4659 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4660 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4661 break;
4662 case 2:
4663 if (ainfo->reg == STK_BASE)
4664 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4665 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4666 break;
4667 case 4:
4668 if (ainfo->reg == STK_BASE)
4669 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4670 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4671 break;
4672 case 8:
4673 if (ainfo->reg == STK_BASE)
4674 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4675 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4676 break;
4677 }
4678 } else if (ainfo->regtype == RegTypeStructByAddr) {
4679 if (ainfo->reg != STK_BASE)
4680 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4681 } else
4682 g_assert_not_reached ();
4683 }
4684 pos++;
4685 }
4686
4687 if (method->save_lmf) {
4688 /*---------------------------------------------------------------*/
4689 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4690 /*---------------------------------------------------------------*/
4691 lmfOffset = alloc_size - sizeof(MonoLMF);
4692
4693 s390_lr (code, s390_r13, cfg->frame_reg);
4694 if (s390_is_uimm16(lmfOffset))
4695 s390_ahi (code, s390_r13, lmfOffset);
4696 else {
4697 s390_basr (code, s390_r14, 0);
4698 s390_j (code, 4);
4699 s390_word (code, lmfOffset);
4700 s390_a (code, s390_r13, 0, s390_r14, 4);
4701 }
4702
4703 /*---------------------------------------------------------------*/
4704 /* Preserve the parameter registers while we fix up the lmf */
4705 /*---------------------------------------------------------------*/
4706 s390_stm (code, s390_r2, s390_r6, s390_r13,
4707 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4708
4709 /*---------------------------------------------------------------*/
4710 /* On return from this call r2 have the address of the &lmf */
4711 /*---------------------------------------------------------------*/
4712 mono_add_patch_info (cfg, code - cfg->native_code,
4713 MONO_PATCH_INFO_INTERNAL_METHOD,
4714 (gpointer)"mono_get_lmf_addr");
4715 s390_brasl (code, s390_r14, 0);
4716
4717 /*---------------------------------------------------------------*/
4718 /* Set lmf.lmf_addr = jit_tls->lmf */
4719 /*---------------------------------------------------------------*/
4720 s390_st (code, s390_r2, 0, s390_r13,
4721 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4722
4723 /*---------------------------------------------------------------*/
4724 /* Get current lmf */
4725 /*---------------------------------------------------------------*/
4726 s390_l (code, s390_r0, 0, s390_r2, 0);
4727
4728 /*---------------------------------------------------------------*/
4729 /* Set our lmf as the current lmf */
4730 /*---------------------------------------------------------------*/
4731 s390_st (code, s390_r13, 0, s390_r2, 0);
4732
4733 /*---------------------------------------------------------------*/
4734 /* Have our lmf.previous_lmf point to the last lmf */
4735 /*---------------------------------------------------------------*/
4736 s390_st (code, s390_r0, 0, s390_r13,
4737 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4738
4739 /*---------------------------------------------------------------*/
4740 /* save method info */
4741 /*---------------------------------------------------------------*/
4742 s390_basr (code, s390_r1, 0);
4743 s390_j (code, 4);
4744 s390_word (code, method);
4745 s390_l (code, s390_r1, 0, s390_r1, 4);
4746 s390_st (code, s390_r1, 0, s390_r13,
4747 G_STRUCT_OFFSET(MonoLMF, method));
4748
4749 /*---------------------------------------------------------------*/
4750 /* save the current IP */
4751 /*---------------------------------------------------------------*/
4752 s390_st (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4753 s390_basr (code, s390_r1, 0);
4754 s390_la (code, s390_r1, 0, s390_r1, 0);
4755 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4756
4757 /*---------------------------------------------------------------*/
4758 /* Save general and floating point registers */
4759 /*---------------------------------------------------------------*/
4760 s390_stm (code, s390_r2, s390_r12, s390_r13,
4761 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4762 for (i = 0; i < 16; i++) {
4763 s390_std (code, i, 0, s390_r13,
4764 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4765 }
4766
4767 /*---------------------------------------------------------------*/
4768 /* Restore the parameter registers now that we've set up the lmf */
4769 /*---------------------------------------------------------------*/
4770 s390_lm (code, s390_r2, s390_r6, s390_r13,
4771 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4772 }
4773
4774 if (tracing)
4775 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4776
4777 cfg->code_len = code - cfg->native_code;
4778
4779 g_assert (cfg->code_len < cfg->code_size);
4780
4781 return code;
4782 }
4783
4784 /*========================= End of Function ========================*/
4785
4786 /*------------------------------------------------------------------*/
4787 /* */
4788 /* Name - mono_arch_emit_epilog */
4789 /* */
4790 /* Function - Emit the instructions for a function epilog. */
4791 /* */
4792 /*------------------------------------------------------------------*/
4793
4794 void
4795 mono_arch_emit_epilog (MonoCompile *cfg)
4796 {
4797 MonoMethod *method = cfg->method;
4798 int tracing = 0;
4799 guint8 *code;
4800 int max_epilog_size = 96;
4801
4802 if (cfg->method->save_lmf)
4803 max_epilog_size += 128;
4804
4805 if (mono_jit_trace_calls != NULL)
4806 max_epilog_size += 128;
4807
4808 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4809 max_epilog_size += 128;
4810
4811 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4812 cfg->code_size *= 2;
4813 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4814 mono_jit_stats.code_reallocs++;
4815 }
4816
4817 code = cfg->native_code + cfg->code_len;
4818
4819 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4820 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4821 tracing = 1;
4822 }
4823
4824 if (method->save_lmf)
4825 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4826
4827 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4828 s390_l (code, STK_BASE, 0, STK_BASE, 0);
4829 else
4830 code = backUpStackPtr(cfg, code, STK_BASE);
4831
4832 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4833 s390_br (code, s390_r14);
4834
4835 cfg->code_len = code - cfg->native_code;
4836
4837 g_assert (cfg->code_len < cfg->code_size);
4838
4839 }
4840
4841 /*========================= End of Function ========================*/
4842
4843 /*------------------------------------------------------------------*/
4844 /* */
4845 /* Name - mono_arch_emit_exceptions */
4846 /* */
4847 /* Function - Emit the blocks to handle exception conditions. */
4848 /* */
4849 /*------------------------------------------------------------------*/
4850
4851 void
4852 mono_arch_emit_exceptions (MonoCompile *cfg)
4853 {
4854 MonoJumpInfo *patch_info;
4855 guint8 *code;
4856 int nThrows = 0,
4857 exc_count = 0,
4858 iExc;
4859 guint32 code_size;
4860 MonoClass *exc_classes [MAX_EXC];
4861 guint8 *exc_throw_start [MAX_EXC];
4862
4863 for (patch_info = cfg->patch_info;
4864 patch_info;
4865 patch_info = patch_info->next) {
4866 if (patch_info->type == MONO_PATCH_INFO_EXC)
4867 exc_count++;
4868 }
4869
4870 code_size = exc_count * 26;
4871
4872 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4873 cfg->code_size *= 2;
4874 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4875 mono_jit_stats.code_reallocs++;
4876 }
4877
4878 code = cfg->native_code + cfg->code_len;
4879
4880 /*---------------------------------------------------------------------*/
4881 /* Add code to raise exceptions */
4882 /*---------------------------------------------------------------------*/
4883 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4884 switch (patch_info->type) {
4885 case MONO_PATCH_INFO_EXC: {
4886 guint8 *ip = patch_info->ip.i + cfg->native_code;
4887 MonoClass *exc_class;
4888 guint32 throw_ip;
4889
4890 /*-----------------------------------------------------*/
4891 /* Patch the branch in epilog to come here */
4892 /*-----------------------------------------------------*/
4893 s390_patch (ip + 2, (guint32) (S390_RELATIVE(code,ip)));
4894
4895 exc_class = mono_class_from_name (mono_defaults.corlib,
4896 "System",
4897 patch_info->data.name);
4898 g_assert (exc_class);
4899 throw_ip = patch_info->ip.i;
4900
4901 for (iExc = 0; iExc < nThrows; ++iExc)
4902 if (exc_classes [iExc] == exc_class)
4903 break;
4904
4905 if (iExc < nThrows) {
4906 s390_jcl (code, S390_CC_UN, (guint32) exc_throw_start [iExc]);
4907 patch_info->type = MONO_PATCH_INFO_NONE;
4908 } else {
4909
4910 if (nThrows < MAX_EXC) {
4911 exc_classes [nThrows] = exc_class;
4912 exc_throw_start [nThrows] = code;
4913 }
4914
4915 /*---------------------------------------------*/
4916 /* Patch the parameter passed to the handler */
4917 /*---------------------------------------------*/
4918 s390_basr (code, s390_r13, 0);
4919 s390_j (code, 4);
4920 s390_word (code, patch_info->data.target);
4921 /*---------------------------------------------*/
4922 /* Load return address & parameter register */
4923 /*---------------------------------------------*/
4924 s390_larl (code, s390_r14, (gsize)S390_RELATIVE((patch_info->ip.i +
4925 cfg->native_code + 8), code));
4926 s390_l (code, s390_r2, 0, s390_r13, 4);
4927 /*---------------------------------------------*/
4928 /* Reuse the current patch to set the jump */
4929 /*---------------------------------------------*/
4930 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4931 patch_info->data.name = "mono_arch_throw_exception_by_name";
4932 patch_info->ip.i = code - cfg->native_code;
4933 s390_jcl (code, S390_CC_UN, 0);
4934 }
4935 break;
4936 }
4937 default:
4938 /* do nothing */
4939 break;
4940 }
4941 }
4942
4943 cfg->code_len = code - cfg->native_code;
4944
4945 g_assert (cfg->code_len < cfg->code_size);
4946
4947 }
4948
4949 /*========================= End of Function ========================*/
4950
4951 /*------------------------------------------------------------------*/
4952 /* */
4953 /* Name - mono_arch_setup_jit_tls_data */
4954 /* */
4955 /* Function - Setup the JIT's Thread Level Specific Data. */
4956 /* */
4957 /*------------------------------------------------------------------*/
4958
4959 void
4960 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4961 {
4962
4963 if (!tls_offset_inited) {
4964 tls_offset_inited = TRUE;
4965
4966 #if HAVE_KW_THREAD
4967 # if 0
4968 __asm__ ("\tear\t%r1,0\n"
4969 "\tlr\t%0,%3\n"
4970 "\tsr\t%0,%r1\n"
4971 "\tlr\t%1,%4\n"
4972 "\tsr\t%1,%r1\n"
4973 "\tlr\t%2,%5\n"
4974 "\tsr\t%2,%r1\n"
4975 : "=r" (appdomain_tls_offset),
4976 "=r" (thread_tls_offset),
4977 "=r" (lmf_tls_offset)
4978 : "r" (&tls_appdomain),
4979 "r" (&tls_current_object),
4980 "r" (&mono_lmf_addr)
4981 : "1", "cc");
4982 # endif
4983 #endif
4984 }
4985
4986 if (!lmf_addr_key_inited) {
4987 lmf_addr_key_inited = TRUE;
4988 pthread_key_create (&lmf_addr_key, NULL);
4989 }
4990 pthread_setspecific (lmf_addr_key, &tls->lmf);
4991
4992 }
4993
4994 /*========================= End of Function ========================*/
4995
4996 /*------------------------------------------------------------------*/
4997 /* */
4998 /* Name - mono_arch_free_jit_tls_data */
4999 /* */
5000 /* Function - Free tls data. */
5001 /* */
5002 /*------------------------------------------------------------------*/
5003
5004 void
5005 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5006 {
5007 }
5008
5009 /*========================= End of Function ========================*/
5010
5011 /*------------------------------------------------------------------*/
5012 /* */
5013 /* Name - mono_arch_emit_inst_for_method */
5014 /* */
5015 /*------------------------------------------------------------------*/
5016
5017 MonoInst*
5018 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5019 {
5020 return NULL;
5021 }
5022
5023 /*========================= End of Function ========================*/
5024
5025 void
5026 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5027 {
5028 switch (ins->opcode) {
5029 case OP_ISUB_OVF:
5030 ins->opcode = OP_S390_ISUB_OVF;
5031 break;
5032 case OP_ISUB_OVF_UN:
5033 ins->opcode = OP_S390_ISUB_OVF_UN;
5034 break;
5035 case OP_IADD_OVF:
5036 ins->opcode = OP_S390_IADD_OVF;
5037 break;
5038 case OP_IADD_OVF_UN:
5039 ins->opcode = OP_S390_IADD_OVF_UN;
5040 break;
5041 default:
5042 break;
5043 }
5044 }
5045
5046 /*========================= End of Function ========================*/
5047
5048 /*------------------------------------------------------------------*/
5049 /* */
5050 /* Name - mono_arch_decompose_long_opts */
5051 /* */
5052 /*------------------------------------------------------------------*/
5053
5054 void
5055 mono_arch_decompose_long_opts (MonoCompile *cfg, MonoInst *ins)
5056 {
5057 // The generic code seems to work for OP_LSUB fine on s390, why is a different
5058 // implementation needed ? gcc also seems to use the different implementation.
5059 // FIXME: What about the other OP_L opcodes below ?
5060
5061 switch (ins->opcode) {
5062 case OP_LADD_OVF:
5063 case OP_LADD_OVF_UN:
5064 case OP_LSUB_OVF:
5065 case OP_LSUB_OVF_UN: {
5066 int opcode = 0;
5067
5068 switch (ins->opcode) {
5069 case OP_LADD:
5070 opcode = OP_S390_LADD;
5071 break;
5072 case OP_LADD_OVF:
5073 opcode = OP_S390_LADD_OVF;
5074 break;
5075 case OP_LADD_OVF_UN:
5076 opcode = OP_S390_LADD_OVF_UN;
5077 break;
5078 case OP_LSUB:
5079 opcode = OP_S390_LSUB;
5080 break;
5081 case OP_LSUB_OVF:
5082 opcode = OP_S390_LSUB_OVF;
5083 break;
5084 case OP_LSUB_OVF_UN:
5085 opcode = OP_S390_LSUB_OVF_UN;
5086 break;
5087 default:
5088 g_assert_not_reached ();
5089 }
5090
5091 /* These hard regs make ssa crazy */
5092 cfg->disable_ssa = TRUE;
5093 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r0, ins->sreg1 + 1);
5094 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r1, ins->sreg1 + 2);
5095 MONO_EMIT_NEW_BIALU (cfg, opcode, ins->dreg, ins->sreg2 + 1, ins->sreg2 + 2);
5096 NULLIFY_INS (ins);
5097 break;
5098 }
5099 case OP_LADD_IMM: {
5100 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5101 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5102 MONO_EMIT_NEW_BIALU (cfg, OP_LADD, ins->dreg, ins->sreg1, dreg);
5103 NULLIFY_INS (ins);
5104 break;
5105 }
5106 case OP_LSUB_IMM: {
5107 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5108 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5109 MONO_EMIT_NEW_BIALU (cfg, OP_LSUB, ins->dreg, ins->sreg1, dreg);
5110 NULLIFY_INS (ins);
5111 break;
5112 }
5113 case OP_LNEG: {
5114 MONO_EMIT_NEW_BIALU (cfg, OP_S390_LNEG, ins->dreg, ins->sreg1 + 1, ins->sreg1 + 2);
5115 NULLIFY_INS (ins);
5116 break;
5117 }
5118 case OP_ISUB_OVF:
5119 ins->opcode = OP_S390_ISUB_OVF;
5120 break;
5121 case OP_ISUB_OVF_UN:
5122 ins->opcode = OP_S390_ISUB_OVF_UN;
5123 break;
5124 default:
5125 break;
5126 }
5127 }
5128
5129 /*========================= End of Function ========================*/
5130
5131 /*------------------------------------------------------------------*/
5132 /* */
5133 /* Name - mono_arch_print_tree */
5134 /* */
5135 /* Function - Print platform-specific opcode details. */
5136 /* */
5137 /* Returns - 1 - opcode details have been printed */
5138 /* 0 - opcode details have not been printed */
5139 /* */
5140 /*------------------------------------------------------------------*/
5141
5142 gboolean
5143 mono_arch_print_tree (MonoInst *tree, int arity)
5144 {
5145 gboolean done;
5146
5147 switch (tree->opcode) {
5148 case OP_S390_LOADARG:
5149 case OP_S390_ARGREG:
5150 case OP_S390_ARGPTR:
5151 printf ("[0x%lx(%s)]", tree->inst_offset,
5152 mono_arch_regname (tree->inst_basereg));
5153 done = 1;
5154 break;
5155 case OP_S390_STKARG:
5156 printf ("[0x%lx(previous_frame)]",
5157 tree->inst_offset);
5158 done = 1;
5159 break;
5160 case OP_S390_MOVE:
5161 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5162 tree->inst_offset, tree->backend.size,
5163 mono_arch_regname(tree->dreg), tree->inst_imm,
5164 mono_arch_regname(tree->sreg1));
5165 done = 1;
5166 break;
5167 case OP_S390_SETF4RET:
5168 printf ("[%s,%s]",
5169 mono_arch_fregname (tree->dreg),
5170 mono_arch_fregname (tree->sreg1));
5171 done = 1;
5172 break;
5173 case OP_TLS_GET:
5174 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5175 tree->inst_imm,
5176 mono_arch_regname (tree->sreg1));
5177 done = 1;
5178 break;
5179 case OP_S390_BKCHAIN:
5180 printf ("[previous_frame(%s)]",
5181 mono_arch_regname (tree->sreg1));
5182 done = 1;
5183 break;
5184 default:
5185 done = 0;
5186 }
5187 return (done);
5188 }
5189
5190 /*========================= End of Function ========================*/
5191
5192 /*------------------------------------------------------------------*/
5193 /* */
5194 /* Name - mono_arch_regalloc_cost */
5195 /* */
5196 /* Function - Determine the cost, in the number of memory */
5197 /* references, of the action of allocating the var- */
5198 /* iable VMV into a register during global register */
5199 /* allocation. */
5200 /* */
5201 /* Returns - Cost */
5202 /* */
5203 /*------------------------------------------------------------------*/
5204
5205 guint32
5206 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5207 {
5208 /* FIXME: */
5209 return 2;
5210 }
5211
5212 /*========================= End of Function ========================*/
5213
5214 /*------------------------------------------------------------------*/
5215 /* */
5216 /* Name - mono_arch_get_domain_intrinsic */
5217 /* */
5218 /* Function - */
5219 /* */
5220 /* Returns - */
5221 /* */
5222 /*------------------------------------------------------------------*/
5223
5224 MonoInst *
5225 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5226 {
5227 MonoInst *ins;
5228
5229 if (appdomain_tls_offset == -1)
5230 return NULL;
5231
5232 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5233 ins->inst_offset = appdomain_tls_offset;
5234 return (ins);
5235 }
5236
5237 /*========================= End of Function ========================*/
5238
5239 /*------------------------------------------------------------------*/
5240 /* */
5241 /* Name - mono_arch_get_thread_intrinsic */
5242 /* */
5243 /* Function - */
5244 /* */
5245 /* Returns - */
5246 /* */
5247 /*------------------------------------------------------------------*/
5248
5249 MonoInst *
5250 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5251 {
5252 MonoInst *ins;
5253
5254 if (thread_tls_offset == -1)
5255 return NULL;
5256
5257 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5258 ins->inst_offset = thread_tls_offset;
5259 return (ins);
5260 }
5261
5262 /*========================= End of Function ========================*/
5263
5264 /*------------------------------------------------------------------*/
5265 /* */
5266 /* Name - mono_arch_flush_register_windows */
5267 /* */
5268 /* Function - */
5269 /* */
5270 /* Returns - */
5271 /* */
5272 /*------------------------------------------------------------------*/
5273
5274 void
5275 mono_arch_flush_register_windows (void)
5276 {
5277 }
5278
5279 /*========================= End of Function ========================*/
5280
5281 /*------------------------------------------------------------------*/
5282 /* */
5283 /* Name - mono_arch_get_lmf_addr */
5284 /* */
5285 /* Function - */
5286 /* */
5287 /* Returns - */
5288 /* */
5289 /*------------------------------------------------------------------*/
5290
5291 gpointer
5292 mono_arch_get_lmf_addr (void)
5293 {
5294 return pthread_getspecific (lmf_addr_key);
5295 }
5296
5297
5298 /*========================= End of Function ========================*/
5299
5300 /*------------------------------------------------------------------*/
5301 /* */
5302 /* Name - mono_arch_get_patch_offset */
5303 /* */
5304 /* Function - Dummy entry point until s390x supports aot. */
5305 /* */
5306 /* Returns - Offset for patch. */
5307 /* */
5308 /*------------------------------------------------------------------*/
5309
5310 guint32
5311 mono_arch_get_patch_offset (guint8 *code)
5312 {
5313 return 0;
5314 }
5315
5316 /*========================= End of Function ========================*/
5317
5318 gpointer
5319 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5320 {
5321 /* FIXME: implement */
5322 g_assert_not_reached ();
5323 return NULL;
5324 }
Mono Debugger - Cloned from the original SVN repository at mono-cvs.ximian.com