1 /*------------------------------------------------------------------*/
3 /* Name - mini-s390.c */
5 /* Function - S/390 backend for the Mono code generator. */
7 /* Name - Neale Ferguson (Neale.Ferguson@SoftwareAG-usa.com) */
9 /* Date - January, 2004 */
11 /* Derivation - From mini-x86 & mini-ppc by - */
12 /* Paolo Molaro (lupus@ximian.com) */
13 /* Dietmar Maurer (dietmar@ximian.com) */
15 /*------------------------------------------------------------------*/
17 /*------------------------------------------------------------------*/
19 /*------------------------------------------------------------------*/
21 #define NOT_IMPLEMENTED(x) \
22 g_error ("FIXME: %s is not yet implemented.", x);
24 #define EMIT_COND_BRANCH(ins,cond) \
26 if (ins->flags & MONO_INST_BRLABEL) { \
27 if (ins->inst_i0->inst_c0) { \
29 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
30 if (s390_is_uimm16(displace)) { \
31 s390_brc (code, cond, displace); \
33 s390_jcl (code, cond, displace); \
36 mono_add_patch_info (cfg, code - cfg->native_code, \
37 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
38 s390_jcl (code, cond, 0); \
41 if (ins->inst_true_bb->native_offset) { \
43 displace = ((cfg->native_code + \
44 ins->inst_true_bb->native_offset) - code) / 2; \
45 if (s390_is_uimm16(displace)) { \
46 s390_brc (code, cond, displace); \
48 s390_jcl (code, cond, displace); \
51 mono_add_patch_info (cfg, code - cfg->native_code, \
52 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
53 s390_jcl (code, cond, 0); \
58 #define EMIT_UNCOND_BRANCH(ins) \
60 if (ins->flags & MONO_INST_BRLABEL) { \
61 if (ins->inst_i0->inst_c0) { \
63 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
64 if (s390_is_uimm16(displace)) { \
65 s390_brc (code, S390_CC_UN, displace); \
67 s390_jcl (code, S390_CC_UN, displace); \
70 mono_add_patch_info (cfg, code - cfg->native_code, \
71 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
72 s390_jcl (code, S390_CC_UN, 0); \
75 if (ins->inst_target_bb->native_offset) { \
77 displace = ((cfg->native_code + \
78 ins->inst_target_bb->native_offset) - code) / 2; \
79 if (s390_is_uimm16(displace)) { \
80 s390_brc (code, S390_CC_UN, displace); \
82 s390_jcl (code, S390_CC_UN, displace); \
85 mono_add_patch_info (cfg, code - cfg->native_code, \
86 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
87 s390_jcl (code, S390_CC_UN, 0); \
92 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
94 mono_add_patch_info (cfg, code - cfg->native_code, \
95 MONO_PATCH_INFO_EXC, exc_name); \
96 s390_jcl (code, cond, 0); \
99 #define CHECK_SRCDST_COM \
100 if (ins->dreg == ins->sreg2) { \
104 if (ins->dreg != ins->sreg1) { \
105 s390_lr (code, ins->dreg, ins->sreg1); \
109 #define CHECK_SRCDST_NCOM \
110 if (ins->dreg == ins->sreg2) { \
112 s390_lr (code, s390_r13, ins->sreg2); \
116 if (ins->dreg != ins->sreg1) { \
117 s390_lr (code, ins->dreg, ins->sreg1); \
120 #define CHECK_SRCDST_NCOM_F \
121 if (ins->dreg == ins->sreg2) { \
123 s390_ldr (code, s390_r13, ins->sreg2); \
127 if (ins->dreg != ins->sreg1) { \
128 s390_ldr (code, ins->dreg, ins->sreg1); \
132 #define DEBUG(a) if (cfg->verbose_level > 1) a
136 /*----------------------------------------*/
137 /* use s390_r2-s390_r5 as temp registers */
138 /*----------------------------------------*/
139 #define S390_CALLER_REGS (0x10fc)
140 #define reg_is_freeable(r) (S390_CALLER_REGS & 1 << (r))
142 /*----------------------------------------*/
143 /* use s390_f1/s390_f3-s390_f15 as temps */
144 /*----------------------------------------*/
145 #define S390_CALLER_FREGS (0xfffa)
146 #define freg_is_freeable(r) ((r) >= 1 && (r) <= 14)
148 #define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
150 #define MAX (a, b) ((a) > (b) ? (a) : (b))
152 /*========================= End of Defines =========================*/
154 /*------------------------------------------------------------------*/
155 /* I n c l u d e s */
156 /*------------------------------------------------------------------*/
161 #include <mono/metadata/appdomain.h>
162 #include <mono/metadata/debug-helpers.h>
163 #include <mono/metadata/profiler-private.h>
164 #include <mono/utils/mono-math.h>
166 #include "mini-s390.h"
168 #include "cpu-s390.h"
170 /*========================= End of Includes ========================*/
172 /*------------------------------------------------------------------*/
173 /* T y p e d e f s */
174 /*------------------------------------------------------------------*/
183 /*------------------------------------------------------------------*/
184 /* Used by the instrument_emit_epilog */
185 /*------------------------------------------------------------------*/
202 typedef struct InstList InstList;
219 gint32 offset; /* offset from caller's stack */
220 gint32 offparm; /* offset on callee's stack */
221 guint16 vtsize; /* in param area */
223 guint8 regtype; /* See RegType* */
224 guint32 size; /* Size of structure used by RegTypeStructByVal */
237 gint32 gr[5]; /* R2-R6 */
238 gdouble fp[3]; /* F0-F2 */
239 } __attribute__ ((packed)) RegParm;
241 /*========================= End of Typedefs ========================*/
243 /*------------------------------------------------------------------*/
244 /* P r o t o t y p e s */
245 /*------------------------------------------------------------------*/
247 static guint32 * emit_memcpy (guint8 *, int, int, int, int, int);
248 static void indent (int);
249 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
250 static void decodeParm (MonoType *, void *, int);
251 static void enter_method (MonoMethod *, RegParm *, char *);
252 static void leave_method (MonoMethod *, ...);
253 static gboolean is_regsize_var (MonoType *);
254 static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
255 static inline void add_float (guint *, size_data *, ArgInfo *);
256 static CallInfo * calculate_sizes (MonoMethodSignature *, size_data *, gboolean);
257 static void peephole_pass (MonoCompile *, MonoBasicBlock *);
258 static int mono_spillvar_offset (MonoCompile *, int);
259 static int mono_spillvar_offset_float (MonoCompile *, int);
260 static void print_ins (int, MonoInst *);
261 static void print_regtrack (RegTrack *, int);
262 static InstList * inst_list_prepend (MonoMemPool *, InstList *, MonoInst *);
263 static int get_register_force_spilling (MonoCompile *, InstList *, MonoInst *, int);
264 static int get_register_spilling (MonoCompile *, InstList *, MonoInst *, guint32, int);
265 static int get_float_register_spilling (MonoCompile *, InstList *, MonoInst *, guint32, int);
266 static MonoInst * create_copy_ins (MonoCompile *, int, int, MonoInst *);
267 static MonoInst * create_copy_ins_float (MonoCompile *, int, int, MonoInst *);
268 static MonoInst * create_spilled_store (MonoCompile *, int, int, int, MonoInst *);
269 static MonoInst * create_spilled_store_float (MonoCompile *, int, int, int, MonoInst *);
270 static void insert_before_ins (MonoInst *, InstList *, MonoInst *);
271 static int alloc_int_reg (MonoCompile *, InstList *, MonoInst *, int, guint32);
272 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
273 static unsigned char * mono_emit_stack_alloc (guchar *, MonoInst *);
275 /*========================= End of Prototypes ======================*/
277 /*------------------------------------------------------------------*/
278 /* G l o b a l V a r i a b l e s */
279 /*------------------------------------------------------------------*/
281 int mono_exc_esp_offset = 0;
283 static int indent_level = 0;
285 static const char*const * ins_spec = s390;
287 static gboolean tls_offset_inited = FALSE;
289 static int appdomain_tls_offset = -1,
291 thread_tls_offset = -1;
295 extern __thread MonoDomain *tls_appdomain;
296 extern __thread MonoThread *tls_current_object;
297 extern __thread gpointer mono_lmf_addr;
301 /*====================== End of Global Variables ===================*/
303 /*------------------------------------------------------------------*/
305 /* Name - mono_arch_regname */
307 /* Function - Returns the name of the register specified by */
308 /* the input parameter. */
310 /*------------------------------------------------------------------*/
313 mono_arch_regname (int reg) {
314 static const char * rnames[] = {
315 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
316 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
317 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
320 if (reg >= 0 && reg < 16)
325 /*========================= End of Function ========================*/
327 /*------------------------------------------------------------------*/
329 /* Name - emit_memcpy */
331 /* Function - Emit code to move from memory-to-memory based on */
332 /* the size of the variable. r0 is overwritten. */
334 /*------------------------------------------------------------------*/
337 emit_memcpy (guint8 *code, int size, int dreg, int doffset, int sreg, int soffset)
341 s390_l (code, s390_r0, 0, sreg, soffset);
342 s390_st (code, s390_r0, 0, dreg, doffset);
346 s390_icm (code, s390_r0, 14, sreg, soffset);
347 s390_stcm (code, s390_r0, 14, dreg, doffset);
351 s390_lh (code, s390_r0, 0, sreg, soffset);
352 s390_sth (code, s390_r0, 0, dreg, doffset);
356 s390_ic (code, s390_r0, 0, sreg, soffset);
357 s390_stc (code, s390_r0, 0, dreg, doffset);
368 s390_mvc (code, len, dreg, doffset, sreg, soffset);
375 /*========================= End of Function ========================*/
377 /*------------------------------------------------------------------*/
379 /* Name - arch_get_argument_info */
381 /* Function - Gathers information on parameters such as size, */
382 /* alignment, and padding. arg_info should be large */
383 /* enough to hold param_count + 1 entries. */
385 /* Parameters - @csig - Method signature */
386 /* @param_count - No. of parameters to consider */
387 /* @arg_info - An array to store the result info */
389 /* Returns - Size of the activation frame */
391 /*------------------------------------------------------------------*/
394 mono_arch_get_argument_info (MonoMethodSignature *csig,
396 MonoJitArgumentInfo *arg_info)
398 int k, frame_size = 0;
399 int size, align, pad;
402 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
403 frame_size += sizeof (gpointer);
407 arg_info [0].offset = offset;
410 frame_size += sizeof (gpointer);
414 arg_info [0].size = frame_size;
416 for (k = 0; k < param_count; k++) {
419 size = mono_type_native_stack_size (csig->params [k], &align);
421 size = mono_type_stack_size (csig->params [k], &align);
423 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
424 arg_info [k].pad = pad;
426 arg_info [k + 1].pad = 0;
427 arg_info [k + 1].size = size;
429 arg_info [k + 1].offset = offset;
433 align = MONO_ARCH_FRAME_ALIGNMENT;
434 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
435 arg_info [k].pad = pad;
440 /*========================= End of Function ========================*/
442 /*------------------------------------------------------------------*/
444 /* Name - retFitsInReg. */
446 /* Function - Determines if a value can be returned in one or */
449 /*------------------------------------------------------------------*/
451 static inline gboolean
452 retFitsInReg(guint32 size)
467 /*========================= End of Function ========================*/
469 /*------------------------------------------------------------------*/
471 /* Name - backStackPtr. */
473 /* Function - Restore Stack Pointer to previous frame. */
475 /*------------------------------------------------------------------*/
477 static inline guint8 *
478 backUpStackPtr(MonoCompile *cfg, guint8 *code)
480 int stackSize = cfg->stack_usage;
482 if (s390_is_uimm16 (cfg->stack_usage)) {
483 s390_ahi (code, STK_BASE, cfg->stack_usage);
485 while (stackSize > 32767) {
486 s390_ahi (code, STK_BASE, 32767);
489 s390_ahi (code, STK_BASE, stackSize);
494 /*========================= End of Function ========================*/
496 /*------------------------------------------------------------------*/
500 /* Function - Perform nice indenting to current level */
502 /*------------------------------------------------------------------*/
508 indent_level += diff;
515 indent_level += diff;
518 /*========================= End of Function ========================*/
520 /*------------------------------------------------------------------*/
522 /* Name - decodeParm */
524 /* Function - Decode a parameter for the trace. */
526 /*------------------------------------------------------------------*/
529 decodeParm(MonoType *type, void *curParm, int size)
534 printf("[BYREF:%p], ", *((char **) curParm));
536 simpleType = mono_type_get_underlying_type(type)->type;
538 switch (simpleType) {
540 printf ("[INTPTR:%p], ", *((int **) curParm));
543 printf ("[UINTPTR:%p], ", *((int **) curParm));
545 case MONO_TYPE_BOOLEAN :
546 printf ("[BOOL:%p], ", *((int *) curParm));
548 case MONO_TYPE_CHAR :
549 printf ("[CHAR:%p], ", *((int *) curParm));
552 printf ("[INT1:%d], ", *((int *) curParm));
555 printf ("[INT2:%d], ", *((int *) curParm));
558 printf ("[INT4:%d], ", *((int *) curParm));
561 printf ("[UINT1:%u], ", *((unsigned int *) curParm));
564 printf ("[UINT2:%u], ", *((guint16 *) curParm));
567 printf ("[UINT4:%u], ", *((guint32 *) curParm));
570 printf ("[UINT8:%llu], ", *((guint64 *) curParm));
572 case MONO_TYPE_STRING : {
573 MonoString *s = *((MonoString **) curParm);
575 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
576 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
578 printf("[STRING:null], ");
582 case MONO_TYPE_CLASS :
583 case MONO_TYPE_OBJECT : {
584 MonoObject *obj = *((MonoObject **) curParm);
586 if ((obj) && (obj->vtable)) {
587 printf("[CLASS/OBJ:");
588 class = obj->vtable->klass;
589 if (class == mono_defaults.string_class) {
590 printf("[STRING:%p:%s]",
591 *obj, mono_string_to_utf8 (obj));
592 } else if (class == mono_defaults.int32_class) {
593 printf("[INT32:%p:%d]",
594 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
597 class->name_space, class->name, obj);
600 printf("[OBJECT:null], ");
605 printf("[PTR:%p], ", *((gpointer **) (curParm)));
607 case MONO_TYPE_FNPTR :
608 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
610 case MONO_TYPE_ARRAY :
611 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
613 case MONO_TYPE_SZARRAY :
614 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
617 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
620 printf("[FLOAT4:%f], ", *((float *) (curParm)));
623 printf("[FLOAT8:%g], ", *((double *) (curParm)));
625 case MONO_TYPE_VALUETYPE : {
627 MonoMarshalType *info;
629 if (type->data.klass->enumtype) {
630 simpleType = type->data.klass->enum_basetype->type;
631 printf("{VALUETYPE} - ");
635 info = mono_marshal_load_type_info (type->data.klass);
637 if ((info->native_size == sizeof(float)) &&
638 (info->num_fields == 1) &&
639 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
640 printf("[FLOAT4:%f], ", *((float *) (curParm)));
644 if ((info->native_size == sizeof(double)) &&
645 (info->num_fields == 1) &&
646 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
647 printf("[FLOAT8:%g], ", *((double *) (curParm)));
651 printf("[VALUETYPE:");
652 for (i = 0; i < size; i++)
653 printf("%02x,", *((guint8 *)curParm+i));
657 case MONO_TYPE_TYPEDBYREF: {
659 printf("[TYPEDBYREF:");
660 for (i = 0; i < size; i++)
661 printf("%02x,", *((guint8 *)curParm+i));
666 printf("[?? - %d], ",simpleType);
671 /*========================= End of Function ========================*/
673 /*------------------------------------------------------------------*/
675 /* Name - enter_method */
677 /* Function - Perform tracing of the entry to the current */
680 /*------------------------------------------------------------------*/
683 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
685 int i, oParm = 0, iParm = 0;
688 MonoJitArgumentInfo *arg_info;
689 MonoMethodSignature *sig;
697 fname = mono_method_full_name (method, TRUE);
699 printf ("ENTER: %s(", fname);
702 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
703 printf (") ip: %p sp: %p - ", ip, sp);
708 sig = mono_method_signature (method);
710 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
712 if (cinfo->struct_ret) {
713 printf ("[VALUERET:%p], ", rParm->gr[0]);
718 gpointer *this = (gpointer *) rParm->gr[iParm];
719 obj = (MonoObject *) this;
720 if (method->klass->valuetype) {
722 printf("this:[value:%p:%08x], ",
723 this, *((guint32 *)(this+sizeof(MonoObject))));
725 printf ("this:[NULL], ");
728 class = obj->vtable->klass;
729 if (class == mono_defaults.string_class) {
730 printf ("this:[STRING:%p:%s], ",
731 obj, mono_string_to_utf8 ((MonoString *)obj));
733 printf ("this:%p[%s.%s], ",
734 obj, class->name_space, class->name);
737 printf ("this:NULL, ");
742 for (i = 0; i < sig->param_count; ++i) {
743 ainfo = cinfo->args + (i + oParm);
744 switch (ainfo->regtype) {
745 case RegTypeGeneral :
746 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
749 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
752 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
754 case RegTypeStructByVal :
755 if (ainfo->reg != STK_BASE)
756 curParm = &(rParm->gr[ainfo->reg-2]);
758 curParm = sp+ainfo->offset;
760 if (retFitsInReg (ainfo->vtsize))
761 decodeParm(sig->params[i],
765 decodeParm(sig->params[i],
766 *((char **) curParm),
769 case RegTypeStructByAddr :
770 if (ainfo->reg != STK_BASE)
771 curParm = &(rParm->gr[ainfo->reg-2]);
773 curParm = sp+ainfo->offset;
775 decodeParm(sig->params[i],
776 *((char **) curParm),
788 /*========================= End of Function ========================*/
790 /*------------------------------------------------------------------*/
792 /* Name - leave_method */
796 /*------------------------------------------------------------------*/
799 leave_method (MonoMethod *method, ...)
806 va_start(ap, method);
808 fname = mono_method_full_name (method, TRUE);
810 printf ("LEAVE: %s", fname);
813 type = mono_method_signature (method)->ret;
816 switch (type->type) {
819 case MONO_TYPE_BOOLEAN: {
820 int val = va_arg (ap, int);
822 printf ("[TRUE:%d]", val);
828 case MONO_TYPE_CHAR: {
829 int val = va_arg (ap, int);
830 printf ("[CHAR:%d]", val);
834 int val = va_arg (ap, int);
835 printf ("[INT1:%d]", val);
839 int val = va_arg (ap, int);
840 printf ("[UINT1:%d]", val);
844 int val = va_arg (ap, int);
845 printf ("[INT2:%d]", val);
849 int val = va_arg (ap, int);
850 printf ("[UINT2:%d]", val);
854 int val = va_arg (ap, int);
855 printf ("[INT4:%d]", val);
859 int val = va_arg (ap, int);
860 printf ("[UINT4:%d]", val);
864 int *val = va_arg (ap, int*);
865 printf ("[INT:%d]", val);
870 int *val = va_arg (ap, int*);
871 printf ("[UINT:%d]", val);
875 case MONO_TYPE_STRING: {
876 MonoString *s = va_arg (ap, MonoString *);
879 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
880 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
882 printf ("[STRING:null], ");
885 case MONO_TYPE_CLASS:
886 case MONO_TYPE_OBJECT: {
887 MonoObject *o = va_arg (ap, MonoObject *);
889 if ((o) && (o->vtable)) {
890 if (o->vtable->klass == mono_defaults.boolean_class) {
891 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
892 } else if (o->vtable->klass == mono_defaults.int32_class) {
893 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
894 } else if (o->vtable->klass == mono_defaults.int64_class) {
895 printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
897 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
899 printf ("[OBJECT:%p]", o);
904 case MONO_TYPE_FNPTR:
905 case MONO_TYPE_ARRAY:
906 case MONO_TYPE_SZARRAY: {
907 gpointer p = va_arg (ap, gpointer);
908 printf ("[result=%p]", p);
912 gint64 l = va_arg (ap, gint64);
913 printf ("[LONG:%lld]", l);
917 guint64 l = va_arg (ap, guint64);
918 printf ("[ULONG:%llu]", l);
922 double f = va_arg (ap, double);
923 printf ("[FLOAT4:%f]\n", (float) f);
927 double f = va_arg (ap, double);
928 printf ("[FLOAT8:%g]\n", f);
931 case MONO_TYPE_VALUETYPE: {
932 MonoMarshalType *info;
933 if (type->data.klass->enumtype) {
934 type = type->data.klass->enum_basetype;
937 guint8 *p = va_arg (ap, gpointer);
940 info = mono_marshal_load_type_info (type->data.klass);
942 if ((info->native_size == sizeof(float)) &&
943 (info->num_fields == 1) &&
944 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
945 double f = va_arg (ap, double);
946 printf("[FLOAT4:%f]\n", (float) f);
950 if ((info->native_size == sizeof(double)) &&
951 (info->num_fields == 1) &&
952 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
953 double f = va_arg (ap, double);
954 printf("[FLOAT8:%g]\n", f);
958 size = mono_type_size (type, &align);
960 for (j = 0; p && j < size; j++)
961 printf ("%02x,", p [j]);
966 case MONO_TYPE_TYPEDBYREF: {
967 guint8 *p = va_arg (ap, gpointer);
969 size = mono_type_size (type, &align);
971 for (j = 0; p && j < size; j++)
972 printf ("%02x,", p [j]);
977 printf ("(unknown return type %x)",
978 mono_method_signature (method)->ret->type);
981 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
982 printf (" ip: %p\n", ip);
985 /*========================= End of Function ========================*/
987 /*------------------------------------------------------------------*/
989 /* Name - mono_arch_cpu_init */
991 /* Function - Perform CPU specific initialization to execute */
994 /*------------------------------------------------------------------*/
997 mono_arch_cpu_init (void)
1001 /*--------------------------------------*/
1002 /* Set default rounding mode for FP */
1003 /*--------------------------------------*/
1004 __asm__ ("SRNM\t%0\n\t"
1008 /*========================= End of Function ========================*/
1010 /*------------------------------------------------------------------*/
1012 /* Name - mono_arch_cpu_optimizazions */
1014 /* Function - Returns the optimizations supported on this CPU */
1016 /*------------------------------------------------------------------*/
1019 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1023 /*----------------------------------------------------------*/
1024 /* no s390-specific optimizations yet */
1025 /*----------------------------------------------------------*/
1026 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1027 // *exclude_mask = MONO_OPT_INLINE;
1031 /*========================= End of Function ========================*/
1033 /*------------------------------------------------------------------*/
1039 /*------------------------------------------------------------------*/
1042 is_regsize_var (MonoType *t) {
1045 switch (mono_type_get_underlying_type (t)->type) {
1051 case MONO_TYPE_OBJECT:
1052 case MONO_TYPE_STRING:
1053 case MONO_TYPE_CLASS:
1054 case MONO_TYPE_SZARRAY:
1055 case MONO_TYPE_ARRAY:
1057 case MONO_TYPE_VALUETYPE:
1058 if (t->data.klass->enumtype)
1059 return is_regsize_var (t->data.klass->enum_basetype);
1065 /*========================= End of Function ========================*/
1067 /*------------------------------------------------------------------*/
1069 /* Name - mono_arch_get_allocatable_int_vars */
1073 /*------------------------------------------------------------------*/
1076 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1081 for (i = 0; i < cfg->num_varinfo; i++) {
1082 MonoInst *ins = cfg->varinfo [i];
1083 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1086 if (vmv->range.first_use.abs_pos > vmv->range.last_use.abs_pos)
1089 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) || (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1092 /* we can only allocate 32 bit values */
1093 if (is_regsize_var (ins->inst_vtype)) {
1094 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1095 g_assert (i == vmv->idx);
1096 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1103 /*========================= End of Function ========================*/
1105 /*------------------------------------------------------------------*/
1107 /* Name - mono_arch_global_int_regs */
1109 /* Function - Return a list of usable integer registers. */
1111 /*------------------------------------------------------------------*/
1114 mono_arch_get_global_int_regs (MonoCompile *cfg)
1117 MonoMethodHeader *header;
1120 header = mono_method_get_header (cfg->method);
1121 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1122 cfg->frame_reg = s390_r11;
1124 for (i = 8; i < top; ++i) {
1125 if (cfg->frame_reg != i)
1126 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1132 /*========================= End of Function ========================*/
1134 /*------------------------------------------------------------------*/
1136 /* Name - mono_arch_flush_icache */
1138 /* Function - Flush the CPU icache. */
1140 /*------------------------------------------------------------------*/
1143 mono_arch_flush_icache (guint8 *code, gint size)
1147 /*========================= End of Function ========================*/
1149 /*------------------------------------------------------------------*/
1151 /* Name - add_general */
1153 /* Function - Determine code and stack size incremements for a */
1156 /*------------------------------------------------------------------*/
1159 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1162 if (*gr > S390_LAST_ARG_REG) {
1163 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1164 ainfo->offset = sz->stack_size;
1165 ainfo->reg = STK_BASE;
1166 ainfo->regtype = RegTypeBase;
1167 sz->stack_size += sizeof(int);
1168 sz->code_size += 12;
1174 if (*gr > S390_LAST_ARG_REG - 1) {
1175 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1176 ainfo->offset = sz->stack_size;
1177 ainfo->reg = STK_BASE;
1178 ainfo->regtype = RegTypeBase;
1179 sz->stack_size += sizeof(long long);
1180 sz->code_size += 10;
1190 /*========================= End of Function ========================*/
1192 /*------------------------------------------------------------------*/
1194 /* Name - add_float */
1196 /* Function - Determine code and stack size incremements for a */
1197 /* float parameter. */
1199 /*------------------------------------------------------------------*/
1202 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1204 if ((*fr) <= S390_LAST_FPARG_REG) {
1205 ainfo->regtype = RegTypeFP;
1211 ainfo->offset = sz->stack_size;
1212 ainfo->reg = STK_BASE;
1213 ainfo->regtype = RegTypeBase;
1215 sz->stack_size += ainfo->size;
1219 /*========================= End of Function ========================*/
1221 /*------------------------------------------------------------------*/
1223 /* Name - calculate_sizes */
1225 /* Function - Determine the amount of space required for code */
1226 /* and stack. In addition determine starting points */
1227 /* for stack-based parameters, and area for struct- */
1228 /* ures being returned on the stack. */
1230 /*------------------------------------------------------------------*/
1233 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1234 gboolean string_ctor)
1236 guint i, fr, gr, size;
1237 int nParm = sig->hasthis + sig->param_count;
1238 guint32 simpletype, align;
1239 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1244 cinfo->struct_ret = 0;
1246 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1250 /*----------------------------------------------------------*/
1251 /* We determine the size of the return code/stack in case we*/
1252 /* need to reserve a register to be used to address a stack */
1253 /* area that the callee will use. */
1254 /*----------------------------------------------------------*/
1256 simpletype = mono_type_get_underlying_type (sig->ret)->type;
1258 switch (simpletype) {
1259 case MONO_TYPE_BOOLEAN:
1264 case MONO_TYPE_CHAR:
1269 case MONO_TYPE_CLASS:
1270 case MONO_TYPE_OBJECT:
1271 case MONO_TYPE_SZARRAY:
1272 case MONO_TYPE_ARRAY:
1274 case MONO_TYPE_FNPTR:
1275 case MONO_TYPE_STRING:
1276 cinfo->ret.reg = s390_r2;
1281 cinfo->ret.reg = s390_f0;
1286 cinfo->ret.reg = s390_r2;
1289 case MONO_TYPE_VALUETYPE: {
1290 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1291 if (sig->ret->data.klass->enumtype) {
1292 simpletype = sig->ret->data.klass->enum_basetype->type;
1296 size = mono_class_native_size (klass, &align);
1298 size = mono_class_value_size (klass, &align);
1300 cinfo->ret.reg = s390_r2;
1301 cinfo->struct_ret = 1;
1302 cinfo->ret.size = size;
1303 cinfo->ret.vtsize = size;
1304 cinfo->ret.offset = sz->stack_size;
1305 sz->stack_size += S390_ALIGN(size, align);
1309 case MONO_TYPE_TYPEDBYREF:
1310 size = sizeof (MonoTypedRef);
1311 cinfo->ret.reg = s390_r2;
1312 cinfo->struct_ret = 1;
1313 cinfo->ret.size = size;
1314 cinfo->ret.vtsize = size;
1315 cinfo->ret.offset = sz->stack_size;
1316 sz->stack_size += S390_ALIGN(size, align);
1319 case MONO_TYPE_VOID:
1322 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1326 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1327 cinfo->args[nParm].size = sizeof(gpointer);
1331 /*----------------------------------------------------------*/
1332 /* We determine the size of the parameter code and stack */
1333 /* requirements by checking the types and sizes of the */
1335 /*----------------------------------------------------------*/
1337 for (i = 0; i < sig->param_count; ++i) {
1338 /*--------------------------------------------------*/
1339 /* Handle vararg type calls. All args are put on */
1341 /*--------------------------------------------------*/
1342 if ((sig->call_convention == MONO_CALL_VARARG) &&
1343 (i == sig->sentinelpos)) {
1344 gr = S390_LAST_ARG_REG + 1;
1345 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1348 if (sig->params [i]->byref) {
1349 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1350 cinfo->args[nParm].size = sizeof(gpointer);
1354 simpletype = mono_type_get_underlying_type(sig->params [i])->type;
1355 switch (simpletype) {
1356 case MONO_TYPE_BOOLEAN:
1359 cinfo->args[nParm].size = sizeof(char);
1360 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1365 case MONO_TYPE_CHAR:
1366 cinfo->args[nParm].size = sizeof(short);
1367 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1372 cinfo->args[nParm].size = sizeof(int);
1373 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1379 case MONO_TYPE_FNPTR:
1380 case MONO_TYPE_CLASS:
1381 case MONO_TYPE_OBJECT:
1382 case MONO_TYPE_STRING:
1383 case MONO_TYPE_SZARRAY:
1384 case MONO_TYPE_ARRAY:
1385 cinfo->args[nParm].size = sizeof(gpointer);
1386 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1391 cinfo->args[nParm].size = sizeof(long long);
1392 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1396 cinfo->args[nParm].size = sizeof(float);
1397 add_float (&fr, sz, cinfo->args+nParm);
1401 cinfo->args[nParm].size = sizeof(double);
1402 add_float (&fr, sz, cinfo->args+nParm);
1405 case MONO_TYPE_VALUETYPE: {
1406 MonoMarshalType *info;
1407 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1409 size = mono_class_native_size (klass, &align);
1411 size = mono_class_value_size (klass, &align);
1413 info = mono_marshal_load_type_info (klass);
1415 if ((info->native_size == sizeof(float)) &&
1416 (info->num_fields == 1) &&
1417 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1418 cinfo->args[nParm].size = sizeof(float);
1419 add_float(&fr, sz, cinfo->args+nParm);
1423 if ((info->native_size == sizeof(double)) &&
1424 (info->num_fields == 1) &&
1425 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1426 cinfo->args[nParm].size = sizeof(double);
1427 add_float(&fr, sz, cinfo->args+nParm);
1431 cinfo->args[nParm].vtsize = 0;
1432 cinfo->args[nParm].size = 0;
1433 cinfo->args[nParm].offparm = sz->local_size;
1436 /*----------------------------------*/
1437 /* On S/390, structures of size 1, */
1438 /* 2, 4, and 8 bytes are passed in */
1439 /* (a) register(s). */
1440 /*----------------------------------*/
1445 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1446 cinfo->args[nParm].size = size;
1447 cinfo->args[nParm].regtype = RegTypeStructByVal;
1449 sz->local_size += sizeof(long);
1452 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1453 cinfo->args[nParm].size = sizeof(long long);
1454 cinfo->args[nParm].regtype = RegTypeStructByVal;
1456 sz->local_size += sizeof(long);
1459 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1460 cinfo->args[nParm].size = sizeof(int);
1461 cinfo->args[nParm].regtype = RegTypeStructByAddr;
1462 cinfo->args[nParm].vtsize = size;
1463 sz->code_size += 40;
1464 sz->local_size += size;
1465 if (cinfo->args[nParm].reg == STK_BASE)
1466 sz->local_size += sizeof(gpointer);
1471 case MONO_TYPE_TYPEDBYREF: {
1472 int size = sizeof (MonoTypedRef);
1474 cinfo->args[nParm].vtsize = 0;
1475 cinfo->args[nParm].size = 0;
1476 cinfo->args[nParm].offparm = sz->local_size;
1479 /*----------------------------------*/
1480 /* On S/390, structures of size 1, */
1481 /* 2, 4, and 8 bytes are passed in */
1482 /* (a) register(s). */
1483 /*----------------------------------*/
1488 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1489 cinfo->args[nParm].size = size;
1490 cinfo->args[nParm].regtype = RegTypeStructByVal;
1492 sz->local_size += sizeof(long);
1495 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1496 cinfo->args[nParm].size = sizeof(long long);
1497 cinfo->args[nParm].regtype = RegTypeStructByVal;
1499 sz->local_size += sizeof(long);
1502 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1503 cinfo->args[nParm].size = sizeof(int);
1504 cinfo->args[nParm].regtype = RegTypeStructByAddr;
1505 cinfo->args[nParm].vtsize = size;
1506 sz->code_size += 40;
1507 sz->local_size += size;
1508 if (cinfo->args[nParm].reg == STK_BASE)
1509 sz->local_size += sizeof(gpointer);
1515 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1519 cinfo->stack_usage = S390_ALIGN(sz->stack_size+sz->local_size,
1520 S390_STACK_ALIGNMENT);
1524 /*========================= End of Function ========================*/
1526 /*------------------------------------------------------------------*/
1528 /* Name - mono_arch_allocate_vars */
1530 /* Function - Set var information according to the calling */
1531 /* convention for S/390. The local var stuff should */
1532 /* most likely be split in another method. */
1534 /* Parameter - @m - Compile unit. */
1536 /*------------------------------------------------------------------*/
1539 mono_arch_allocate_vars (MonoCompile *cfg)
1541 MonoMethodSignature *sig;
1542 MonoMethodHeader *header;
1546 int iParm, iVar, offset, size, align, curinst;
1547 int frame_reg = STK_BASE;
1550 header = mono_method_get_header (cfg->method);
1552 /*---------------------------------------------------------*/
1553 /* We use the frame register also for any method that has */
1554 /* filter clauses. This way, when the handlers are called, */
1555 /* the code will reference local variables using the frame */
1556 /* reg instead of the stack pointer: if we had to restore */
1557 /* the stack pointer, we'd corrupt the method frames that */
1558 /* are already on the stack (since filters get called */
1559 /* before stack unwinding happens) when the filter code */
1560 /* would call any method. */
1561 /*---------------------------------------------------------*/
1562 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1563 frame_reg = s390_r11;
1565 cfg->frame_reg = frame_reg;
1567 if (frame_reg != STK_BASE)
1568 cfg->used_int_regs |= 1 << frame_reg;
1570 sig = mono_method_signature (cfg->method);
1572 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1574 if (cinfo->struct_ret) {
1575 cfg->ret->opcode = OP_REGVAR;
1576 cfg->ret->inst_c0 = s390_r2;
1578 switch (mono_type_get_underlying_type (sig->ret)->type) {
1579 case MONO_TYPE_VOID:
1582 cfg->ret->opcode = OP_REGVAR;
1583 cfg->ret->dreg = s390_r2;
1588 /*--------------------------------------------------------------*/
1589 /* local vars are at a positive offset from the stack pointer */
1590 /* also note that if the function uses alloca, we use s390_r11 */
1591 /* to point at the local variables. */
1592 /* add parameter area size for called functions */
1593 /*--------------------------------------------------------------*/
1594 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1595 cfg->sig_cookie = 0;
1597 if (cinfo->struct_ret) {
1599 offset = S390_ALIGN(offset, sizeof(gpointer));
1600 inst->inst_offset = offset;
1601 inst->opcode = OP_REGOFFSET;
1602 inst->inst_basereg = frame_reg;
1603 offset += sizeof(gpointer);
1604 if ((sig->call_convention == MONO_CALL_VARARG) &&
1605 (!retFitsInReg (cinfo->ret.size)))
1606 cfg->sig_cookie += cinfo->ret.size;
1610 inst = cfg->varinfo [0];
1611 if (inst->opcode != OP_REGVAR) {
1612 inst->opcode = OP_REGOFFSET;
1613 inst->inst_basereg = frame_reg;
1614 offset = S390_ALIGN(offset, sizeof(gpointer));
1615 inst->inst_offset = offset;
1616 offset += sizeof (gpointer);
1623 eArg = sig->param_count + sArg;
1625 if (sig->call_convention == MONO_CALL_VARARG)
1626 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1628 for (iParm = sArg; iParm < eArg; ++iParm) {
1629 inst = cfg->varinfo [curinst];
1630 if (inst->opcode != OP_REGVAR) {
1631 switch (cinfo->args[iParm].regtype) {
1632 case RegTypeStructByAddr :
1633 inst->opcode = OP_S390_LOADARG;
1634 inst->inst_basereg = frame_reg;
1635 size = abs(cinfo->args[iParm].vtsize);
1636 offset = S390_ALIGN(offset, size);
1637 inst->inst_offset = offset;
1639 case RegTypeStructByVal :
1640 inst->opcode = OP_S390_ARGPTR;
1641 inst->inst_basereg = frame_reg;
1642 size = cinfo->args[iParm].size;
1643 offset = S390_ALIGN(offset, size);
1644 inst->inst_offset = offset;
1647 if (cinfo->args[iParm].reg != STK_BASE) {
1648 inst->opcode = OP_REGOFFSET;
1649 inst->inst_basereg = frame_reg;
1650 size = (cinfo->args[iParm].size < 8
1652 : sizeof(long long));
1653 offset = S390_ALIGN(offset, size);
1654 inst->inst_offset = offset;
1656 inst->opcode = OP_S390_STKARG;
1657 inst->inst_basereg = frame_reg;
1658 size = (cinfo->args[iParm].size < 4
1659 ? 4 - cinfo->args[iParm].size
1661 inst->inst_offset = cinfo->args[iParm].offset +
1664 size = sizeof(long);
1667 if ((sig->call_convention == MONO_CALL_VARARG) &&
1668 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1669 (iParm < sig->sentinelpos))
1670 cfg->sig_cookie += size;
1677 curinst = cfg->locals_start;
1678 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1679 inst = cfg->varinfo [iVar];
1680 if ((inst->flags & MONO_INST_IS_DEAD) ||
1681 (inst->opcode == OP_REGVAR))
1684 /*--------------------------------------------------*/
1685 /* inst->unused indicates native sized value types, */
1686 /* this is used by the pinvoke wrappers when they */
1687 /* call functions returning structure */
1688 /*--------------------------------------------------*/
1689 if (inst->unused && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1690 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1692 size = mono_type_size (inst->inst_vtype, &align);
1694 offset = S390_ALIGN(offset, align);
1695 inst->inst_offset = offset;
1696 inst->opcode = OP_REGOFFSET;
1697 inst->inst_basereg = frame_reg;
1699 DEBUG (g_print("allocating local %d to %d\n", iVar, inst->inst_offset));
1702 /*------------------------------------------------------*/
1703 /* Allow space for the trace method stack area if needed*/
1704 /*------------------------------------------------------*/
1705 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg))
1706 offset += S390_TRACE_STACK_SIZE;
1708 /*------------------------------------------------------*/
1709 /* Reserve space to save LMF and caller saved registers */
1710 /*------------------------------------------------------*/
1711 if (cfg->method->save_lmf)
1712 offset += sizeof (MonoLMF);
1714 /*------------------------------------------------------*/
1715 /* align the offset */
1716 /*------------------------------------------------------*/
1717 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1721 /*========================= End of Function ========================*/
1723 /*------------------------------------------------------------------*/
1725 /* Name - mono_arch_call_opcode */
1727 /* Function - Take the arguments and generate the arch-specific */
1728 /* instructions to properly call the function. This */
1729 /* includes pushing, moving argments to the correct */
1732 /* Note - FIXME: We need an alignment solution for */
1733 /* enter_method and mono_arch_call_opcode, currently */
1734 /* alignment in mono_arch_call_opcode is computed */
1735 /* without arch_get_argument_info. */
1737 /*------------------------------------------------------------------*/
1740 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1741 MonoCallInst *call, int is_virtual) {
1743 MonoMethodSignature *sig;
1744 int i, n, lParamArea;
1749 sig = call->signature;
1750 n = sig->param_count + sig->hasthis;
1751 DEBUG (g_print ("Call requires: %d parameters\n",n));
1753 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1755 call->stack_usage = cinfo->stack_usage;
1756 lParamArea = MAX((cinfo->stack_usage - S390_MINIMAL_STACK_SIZE), 0);
1757 cfg->param_area = MAX (((signed) cfg->param_area), lParamArea);
1758 cfg->flags |= MONO_CFG_HAS_CALLS;
1760 if (cinfo->struct_ret)
1761 call->used_iregs |= 1 << cinfo->ret.reg;
1763 for (i = 0; i < n; ++i) {
1764 ainfo = cinfo->args + i;
1766 if ((sig->call_convention == MONO_CALL_VARARG) &&
1767 (i == sig->sentinelpos)) {
1770 cfg->disable_aot = TRUE;
1771 MONO_INST_NEW (cfg, sigArg, OP_ICONST);
1772 sigArg->inst_p0 = call->signature;
1774 MONO_INST_NEW (cfg, arg, OP_OUTARG);
1775 arg->inst_imm = cinfo->sigCookie.offset;
1776 arg->inst_left = sigArg;
1778 arg->next = call->out_args;
1779 call->out_args = arg;
1782 if (is_virtual && i == 0) {
1783 /* the argument will be attached to the call instrucion */
1784 in = call->args [i];
1785 call->used_iregs |= 1 << ainfo->reg;
1787 MONO_INST_NEW (cfg, arg, OP_OUTARG);
1788 in = call->args [i];
1789 arg->cil_code = in->cil_code;
1790 arg->inst_left = in;
1791 arg->type = in->type;
1792 /* prepend, we'll need to reverse them later */
1793 arg->next = call->out_args;
1794 call->out_args = arg;
1795 if (ainfo->regtype == RegTypeGeneral) {
1796 arg->unused = ainfo->reg;
1797 call->used_iregs |= 1 << ainfo->reg;
1798 if (arg->type == STACK_I8)
1799 call->used_iregs |= 1 << (ainfo->reg + 1);
1800 } else if (ainfo->regtype == RegTypeStructByAddr) {
1801 call->used_iregs |= 1 << ainfo->reg;
1802 arg->sreg1 = ainfo->reg;
1803 arg->opcode = OP_OUTARG_VT;
1804 arg->unused = -ainfo->vtsize;
1805 arg->inst_imm = ainfo->offset;
1806 arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
1807 } else if (ainfo->regtype == RegTypeStructByVal) {
1808 if (ainfo->reg != STK_BASE) {
1809 switch (ainfo->size) {
1814 call->used_iregs |= 1 << ainfo->reg;
1817 call->used_iregs |= 1 << ainfo->reg;
1818 call->used_iregs |= 1 << (ainfo->reg+1);
1821 call->used_iregs |= 1 << ainfo->reg;
1824 arg->sreg1 = ainfo->reg;
1825 arg->opcode = OP_OUTARG_VT;
1826 arg->unused = ainfo->size;
1827 arg->inst_imm = ainfo->offset;
1828 arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
1829 } else if (ainfo->regtype == RegTypeBase) {
1830 arg->opcode = OP_OUTARG;
1831 arg->unused = ainfo->reg | (ainfo->size << 8);
1832 arg->inst_imm = ainfo->offset;
1833 call->used_fregs |= 1 << ainfo->reg;
1834 } else if (ainfo->regtype == RegTypeFP) {
1835 arg->unused = ainfo->reg;
1836 call->used_fregs |= 1 << ainfo->reg;
1837 if (ainfo->size == 4) {
1839 arg->opcode = OP_OUTARG_R4;
1840 MONO_INST_NEW (cfg, conv, OP_FCONV_TO_R4);
1841 conv->inst_left = arg->inst_left;
1842 arg->inst_left = conv;
1845 arg->opcode = OP_OUTARG_R8;
1847 g_assert_not_reached ();
1852 * Reverse the call->out_args list.
1855 MonoInst *prev = NULL, *list = call->out_args, *next;
1862 call->out_args = prev;
1869 /*========================= End of Function ========================*/
1871 /*------------------------------------------------------------------*/
1873 /* Name - mono_arch_instrument_mem_needs */
1875 /* Function - Allow tracing to work with this interface (with */
1876 /* an optional argument). */
1878 /*------------------------------------------------------------------*/
1881 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
1883 /* no stack room needed now (may be needed for FASTCALL-trace support) */
1885 /* split prolog-epilog requirements? */
1886 *code = 50; /* max bytes needed: check this number */
1889 /*========================= End of Function ========================*/
1891 /*------------------------------------------------------------------*/
1893 /* Name - mono_arch_instrument_prolog */
1895 /* Function - Create an "instrumented" prolog. */
1897 /*------------------------------------------------------------------*/
1900 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
1901 gboolean enable_arguments)
1907 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
1908 if (cfg->method->save_lmf)
1909 parmOffset -= sizeof(MonoLMF);
1910 fpOffset = parmOffset + (5*sizeof(gint32));
1912 s390_stm (code, s390_r2, s390_r6, STK_BASE, parmOffset);
1913 s390_std (code, s390_f0, 0, STK_BASE, fpOffset);
1914 s390_std (code, s390_f1, 0, STK_BASE, fpOffset+sizeof(gdouble));
1915 s390_std (code, s390_f2, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
1916 s390_basr (code, s390_r13, 0);
1918 s390_word (code, cfg->method);
1919 s390_word (code, func);
1920 s390_l (code, s390_r2, 0, s390_r13, 4);
1921 s390_la (code, s390_r3, 0, STK_BASE, parmOffset);
1922 s390_lr (code, s390_r4, STK_BASE);
1923 s390_ahi (code, s390_r4, cfg->stack_usage);
1924 s390_l (code, s390_r1, 0, s390_r13, 8);
1925 s390_basr (code, s390_r14, s390_r1);
1926 s390_ld (code, s390_f2, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
1927 s390_ld (code, s390_f1, 0, STK_BASE, fpOffset+sizeof(gdouble));
1928 s390_ld (code, s390_f0, 0, STK_BASE, fpOffset);
1929 s390_lm (code, s390_r2, s390_r6, STK_BASE, parmOffset);
1934 /*========================= End of Function ========================*/
1936 /*------------------------------------------------------------------*/
1938 /* Name - mono_arch_instrument_epilog */
1940 /* Function - Create an epilog that will handle the returned */
1941 /* values used in instrumentation. */
1943 /*------------------------------------------------------------------*/
1946 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
1949 int save_mode = SAVE_NONE,
1951 MonoMethod *method = cfg->method;
1952 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
1954 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
1955 if (method->save_lmf)
1956 saveOffset -= sizeof(MonoLMF);
1960 case MONO_TYPE_VOID:
1961 /* special case string .ctor icall */
1962 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
1963 save_mode = SAVE_ONE;
1965 save_mode = SAVE_NONE;
1969 save_mode = SAVE_TWO;
1973 save_mode = SAVE_FP;
1975 case MONO_TYPE_VALUETYPE:
1976 if (mono_method_signature (method)->ret->data.klass->enumtype) {
1977 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
1980 save_mode = SAVE_STRUCT;
1983 save_mode = SAVE_ONE;
1987 switch (save_mode) {
1989 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
1990 if (enable_arguments) {
1991 s390_lr (code, s390_r4, s390_r3);
1992 s390_lr (code, s390_r3, s390_r2);
1996 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1997 if (enable_arguments) {
1998 s390_lr (code, s390_r3, s390_r2);
2002 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2003 if (enable_arguments) {
2004 /* FIXME: what reg? */
2005 s390_ldr (code, s390_f2, s390_f0);
2006 s390_lm (code, s390_r3, s390_r4, cfg->frame_reg, saveOffset);
2010 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2011 if (enable_arguments) {
2012 s390_l (code, s390_r3, 0, cfg->frame_reg,
2013 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2021 s390_basr (code, s390_r13, 0);
2023 s390_word (code, cfg->method);
2024 s390_word (code, func);
2025 s390_l (code, s390_r2, 0, s390_r13, 4);
2026 s390_l (code, s390_r1, 0, s390_r13, 8);
2027 s390_basr (code, s390_r14, s390_r1);
2029 switch (save_mode) {
2031 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2034 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2037 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2040 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2050 /*========================= End of Function ========================*/
2052 /*------------------------------------------------------------------*/
2054 /* Name - peephole_pass */
2056 /* Function - Form a peephole pass at the code looking for */
2057 /* simple optimizations. */
2059 /*------------------------------------------------------------------*/
2062 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2064 MonoInst *ins, *last_ins = NULL;
2069 switch (ins->opcode) {
2071 /* remove unnecessary multiplication with 1 */
2072 if (ins->inst_imm == 1) {
2073 if (ins->dreg != ins->sreg1) {
2074 ins->opcode = OP_MOVE;
2076 last_ins->next = ins->next;
2082 case OP_LOAD_MEMBASE:
2083 case OP_LOADI4_MEMBASE:
2085 * OP_STORE_MEMBASE_REG reg, offset(basereg)
2086 * OP_LOAD_MEMBASE offset(basereg), reg
2088 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
2089 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
2090 ins->inst_basereg == last_ins->inst_destbasereg &&
2091 ins->inst_offset == last_ins->inst_offset) {
2092 if (ins->dreg == last_ins->sreg1) {
2093 last_ins->next = ins->next;
2097 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
2098 ins->opcode = OP_MOVE;
2099 ins->sreg1 = last_ins->sreg1;
2103 * Note: reg1 must be different from the basereg in the second load
2104 * OP_LOAD_MEMBASE offset(basereg), reg1
2105 * OP_LOAD_MEMBASE offset(basereg), reg2
2107 * OP_LOAD_MEMBASE offset(basereg), reg1
2108 * OP_MOVE reg1, reg2
2110 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
2111 || last_ins->opcode == OP_LOAD_MEMBASE) &&
2112 ins->inst_basereg != last_ins->dreg &&
2113 ins->inst_basereg == last_ins->inst_basereg &&
2114 ins->inst_offset == last_ins->inst_offset) {
2116 if (ins->dreg == last_ins->dreg) {
2117 last_ins->next = ins->next;
2121 ins->opcode = OP_MOVE;
2122 ins->sreg1 = last_ins->dreg;
2125 //g_assert_not_reached ();
2129 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
2130 * OP_LOAD_MEMBASE offset(basereg), reg
2132 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
2133 * OP_ICONST reg, imm
2135 } else if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_IMM
2136 || last_ins->opcode == OP_STORE_MEMBASE_IMM) &&
2137 ins->inst_basereg == last_ins->inst_destbasereg &&
2138 ins->inst_offset == last_ins->inst_offset) {
2139 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
2140 ins->opcode = OP_ICONST;
2141 ins->inst_c0 = last_ins->inst_imm;
2142 g_assert_not_reached (); // check this rule
2146 case OP_LOADU1_MEMBASE:
2147 case OP_LOADI1_MEMBASE:
2148 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
2149 ins->inst_basereg == last_ins->inst_destbasereg &&
2150 ins->inst_offset == last_ins->inst_offset) {
2151 if (ins->dreg == last_ins->sreg1) {
2152 last_ins->next = ins->next;
2156 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
2157 ins->opcode = OP_MOVE;
2158 ins->sreg1 = last_ins->sreg1;
2162 case OP_LOADU2_MEMBASE:
2163 case OP_LOADI2_MEMBASE:
2164 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
2165 ins->inst_basereg == last_ins->inst_destbasereg &&
2166 ins->inst_offset == last_ins->inst_offset) {
2167 if (ins->dreg == last_ins->sreg1) {
2168 last_ins->next = ins->next;
2172 ins->opcode = OP_MOVE;
2173 ins->sreg1 = last_ins->sreg1;
2183 if (ins->dreg == ins->sreg1) {
2185 last_ins->next = ins->next;
2190 * OP_MOVE sreg, dreg
2191 * OP_MOVE dreg, sreg
2193 if (last_ins && last_ins->opcode == OP_MOVE &&
2194 ins->sreg1 == last_ins->dreg &&
2195 ins->dreg == last_ins->sreg1) {
2196 last_ins->next = ins->next;
2205 bb->last_ins = last_ins;
2208 /*========================= End of Function ========================*/
2210 /*------------------------------------------------------------------*/
2212 /* Name - mono_spillvar_offset */
2214 /* Function - Returns the offset used by spillvar. It allocates */
2215 /* a new spill variable if necessary. */
2217 /*------------------------------------------------------------------*/
2220 mono_spillvar_offset (MonoCompile *cfg, int spillvar)
2222 MonoSpillInfo **si, *info;
2225 si = &cfg->spill_info;
2227 while (i <= spillvar) {
2230 *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
2232 info->offset = cfg->stack_offset;
2233 cfg->stack_offset += sizeof (gpointer);
2237 return (*si)->offset;
2243 g_assert_not_reached ();
2247 /*========================= End of Function ========================*/
2249 /*------------------------------------------------------------------*/
2251 /* Name - mono_spillvar_offset_float */
2255 /*------------------------------------------------------------------*/
2258 mono_spillvar_offset_float (MonoCompile *cfg, int spillvar)
2260 MonoSpillInfo **si, *info;
2263 si = &cfg->spill_info_float;
2265 while (i <= spillvar) {
2268 *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
2270 cfg->stack_offset = S390_ALIGN(cfg->stack_offset, S390_STACK_ALIGNMENT);
2271 info->offset = cfg->stack_offset;
2272 cfg->stack_offset += sizeof (double);
2276 return (*si)->offset;
2282 g_assert_not_reached ();
2286 /*========================= End of Function ========================*/
2288 /*------------------------------------------------------------------*/
2290 /* Name - print_ins */
2292 /* Function - Decode and print the instruction for tracing. */
2294 /*------------------------------------------------------------------*/
2297 print_ins (int i, MonoInst *ins)
2299 const char *spec = ins_spec [ins->opcode];
2300 g_print ("\t%-2d %s", i, mono_inst_name (ins->opcode));
2301 if (spec [MONO_INST_DEST]) {
2302 if (ins->dreg >= MONO_MAX_IREGS)
2303 g_print (" R%d <-", ins->dreg);
2305 g_print (" %s <-", mono_arch_regname (ins->dreg));
2307 if (spec [MONO_INST_SRC1]) {
2308 if (ins->sreg1 >= MONO_MAX_IREGS)
2309 g_print (" R%d", ins->sreg1);
2311 g_print (" %s", mono_arch_regname (ins->sreg1));
2313 if (spec [MONO_INST_SRC2]) {
2314 if (ins->sreg2 >= MONO_MAX_IREGS)
2315 g_print (" R%d", ins->sreg2);
2317 g_print (" %s", mono_arch_regname (ins->sreg2));
2319 if (spec [MONO_INST_CLOB])
2320 g_print (" clobbers: %c", spec [MONO_INST_CLOB]);
2324 /*========================= End of Function ========================*/
2326 /*------------------------------------------------------------------*/
2328 /* Name - print_regtrack. */
2332 /*------------------------------------------------------------------*/
2335 print_regtrack (RegTrack *t, int num)
2341 for (i = 0; i < num; ++i) {
2344 if (i >= MONO_MAX_IREGS) {
2345 g_snprintf (buf, sizeof(buf), "R%d", i);
2348 r = mono_arch_regname (i);
2349 g_print ("liveness: %s [%d - %d]\n", r, t [i].born_in, t[i].last_use);
2353 /*========================= End of Function ========================*/
2355 /*------------------------------------------------------------------*/
2357 /* Name - inst_list_prepend */
2359 /* Function - Prepend an instruction to the list. */
2361 /*------------------------------------------------------------------*/
2363 static inline InstList*
2364 inst_list_prepend (MonoMemPool *pool, InstList *list, MonoInst *data)
2366 InstList *item = mono_mempool_alloc (pool, sizeof (InstList));
2375 /*========================= End of Function ========================*/
2377 /*------------------------------------------------------------------*/
2379 /* Name - get_register_force_spilling */
2381 /* Function - Force the spilling of the variable in the */
2382 /* symbolic register 'reg'. */
2384 /*------------------------------------------------------------------*/
2387 get_register_force_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, int reg)
2392 sel = cfg->rs->iassign [reg];
2394 spill = ++cfg->spill_count;
2395 cfg->rs->iassign [i] = -spill - 1;
2396 mono_regstate_free_int (cfg->rs, sel);
2397 /*----------------------------------------------------------*/
2398 /* we need to create a spill var and insert a load to sel */
2399 /* after the current instruction */
2400 /*----------------------------------------------------------*/
2401 MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
2403 load->inst_basereg = cfg->frame_reg;
2404 load->inst_offset = mono_spillvar_offset (cfg, spill);
2406 while (ins->next != item->prev->data)
2409 load->next = ins->next;
2411 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n",
2412 spill, load->inst_offset, i, mono_arch_regname (sel)));
2413 i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
2414 g_assert (i == sel);
2419 /*========================= End of Function ========================*/
2421 /*------------------------------------------------------------------*/
2423 /* Name - get_register_spilling */
2427 /*------------------------------------------------------------------*/
2430 get_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
2435 DEBUG (g_print ("start regmask to assign R%d: 0x%08x (R%d <- R%d R%d)\n", reg, regmask, ins->dreg, ins->sreg1, ins->sreg2));
2436 /* exclude the registers in the current instruction */
2437 if (reg != ins->sreg1 &&
2438 (reg_is_freeable (ins->sreg1) ||
2439 (ins->sreg1 >= MONO_MAX_IREGS &&
2440 cfg->rs->iassign [ins->sreg1] >= 0))) {
2441 if (ins->sreg1 >= MONO_MAX_IREGS)
2442 regmask &= ~ (1 << cfg->rs->iassign [ins->sreg1]);
2444 regmask &= ~ (1 << ins->sreg1);
2445 DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
2447 if (reg != ins->sreg2 &&
2448 (reg_is_freeable (ins->sreg2) ||
2449 (ins->sreg2 >= MONO_MAX_IREGS &&
2450 cfg->rs->iassign [ins->sreg2] >= 0))) {
2451 if (ins->sreg2 >= MONO_MAX_IREGS)
2452 regmask &= ~ (1 << cfg->rs->iassign [ins->sreg2]);
2454 regmask &= ~ (1 << ins->sreg2);
2455 DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
2457 if (reg != ins->dreg && reg_is_freeable (ins->dreg)) {
2458 regmask &= ~ (1 << ins->dreg);
2459 DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
2462 DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
2463 g_assert (regmask); /* need at least a register we can free */
2465 /* we should track prev_use and spill the register that's farther */
2466 for (i = 0; i < MONO_MAX_IREGS; ++i) {
2467 if (regmask & (1 << i)) {
2469 DEBUG (g_print ("selected register %s has assignment %d\n", mono_arch_regname (sel), cfg->rs->iassign [sel]));
2473 i = cfg->rs->isymbolic [sel];
2474 spill = ++cfg->spill_count;
2475 cfg->rs->iassign [i] = -spill - 1;
2476 mono_regstate_free_int (cfg->rs, sel);
2477 /* we need to create a spill var and insert a load to sel after the current instruction */
2478 MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
2480 load->inst_basereg = cfg->frame_reg;
2481 load->inst_offset = mono_spillvar_offset (cfg, spill);
2483 while (ins->next != item->prev->data)
2486 load->next = ins->next;
2488 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
2489 i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
2490 g_assert (i == sel);
2495 /*========================= End of Function ========================*/
2497 /*------------------------------------------------------------------*/
2499 /* Name - get_float_register_spilling */
2503 /*------------------------------------------------------------------*/
2506 get_float_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
2511 DEBUG (g_print ("start regmask to assign R%d: 0x%08x (R%d <- R%d R%d)\n", reg, regmask, ins->dreg, ins->sreg1, ins->sreg2));
2512 /* exclude the registers in the current instruction */
2513 if (reg != ins->sreg1 &&
2514 (freg_is_freeable (ins->sreg1) ||
2515 (ins->sreg1 >= MONO_MAX_FREGS &&
2516 cfg->rs->fassign [ins->sreg1] >= 0))) {
2517 if (ins->sreg1 >= MONO_MAX_FREGS)
2518 regmask &= ~ (1 << cfg->rs->fassign [ins->sreg1]);
2520 regmask &= ~ (1 << ins->sreg1);
2521 DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
2523 if (reg != ins->sreg2 &&
2524 (freg_is_freeable (ins->sreg2) ||
2525 (ins->sreg2 >= MONO_MAX_FREGS &&
2526 cfg->rs->fassign [ins->sreg2] >= 0))) {
2527 if (ins->sreg2 >= MONO_MAX_FREGS)
2528 regmask &= ~ (1 << cfg->rs->fassign [ins->sreg2]);
2530 regmask &= ~ (1 << ins->sreg2);
2531 DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
2533 if (reg != ins->dreg && freg_is_freeable (ins->dreg)) {
2534 regmask &= ~ (1 << ins->dreg);
2535 DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
2538 DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
2539 g_assert (regmask); /* need at least a register we can free */
2541 /* we should track prev_use and spill the register that's farther */
2542 for (i = 0; i < MONO_MAX_FREGS; ++i) {
2543 if (regmask & (1 << i)) {
2545 DEBUG (g_print ("selected register %s has assignment %d\n",
2546 mono_arch_regname (sel), cfg->rs->fassign [sel]));
2550 i = cfg->rs->fsymbolic [sel];
2551 spill = ++cfg->spill_count;
2552 cfg->rs->fassign [i] = -spill - 1;
2553 mono_regstate_free_float(cfg->rs, sel);
2554 /* we need to create a spill var and insert a load to sel after the current instruction */
2555 MONO_INST_NEW (cfg, load, OP_LOADR8_MEMBASE);
2557 load->inst_basereg = cfg->frame_reg;
2558 load->inst_offset = mono_spillvar_offset_float (cfg, spill);
2560 while (ins->next != item->prev->data)
2563 load->next = ins->next;
2565 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
2566 i = mono_regstate_alloc_float (cfg->rs, 1 << sel);
2567 g_assert (i == sel);
2572 /*========================= End of Function ========================*/
2574 /*------------------------------------------------------------------*/
2576 /* Name - create_copy_ins */
2578 /* Function - Create an instruction to copy from reg to reg. */
2580 /*------------------------------------------------------------------*/
2583 create_copy_ins (MonoCompile *cfg, int dest, int src, MonoInst *ins)
2586 MONO_INST_NEW (cfg, copy, OP_MOVE);
2590 copy->next = ins->next;
2593 DEBUG (g_print ("\tforced copy from %s to %s\n",
2594 mono_arch_regname (src), mono_arch_regname (dest)));
2598 /*========================= End of Function ========================*/
2600 /*------------------------------------------------------------------*/
2602 /* Name - create_copy_ins_float */
2604 /* Function - Create an instruction to copy from float reg to */
2607 /*------------------------------------------------------------------*/
2610 create_copy_ins_float (MonoCompile *cfg, int dest, int src, MonoInst *ins)
2613 MONO_INST_NEW (cfg, copy, OP_FMOVE);
2617 copy->next = ins->next;
2620 DEBUG (g_print ("\tforced copy from %s to %s\n",
2621 mono_arch_regname (src), mono_arch_regname (dest)));
2625 /*========================= End of Function ========================*/
2627 /*------------------------------------------------------------------*/
2629 /* Name - create_spilled_store */
2631 /* Function - Spill register to storage. */
2633 /*------------------------------------------------------------------*/
2636 create_spilled_store (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
2639 MONO_INST_NEW (cfg, store, OP_STORE_MEMBASE_REG);
2641 store->inst_destbasereg = cfg->frame_reg;
2642 store->inst_offset = mono_spillvar_offset (cfg, spill);
2644 store->next = ins->next;
2647 DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
2648 spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
2652 /*========================= End of Function ========================*/
2654 /*------------------------------------------------------------------*/
2656 /* Name - create_spilled_store_float */
2658 /* Function - Spill floating point register to storage. */
2660 /*------------------------------------------------------------------*/
2663 create_spilled_store_float (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
2666 MONO_INST_NEW (cfg, store, OP_STORER8_MEMBASE_REG);
2668 store->inst_destbasereg = cfg->frame_reg;
2669 store->inst_offset = mono_spillvar_offset_float (cfg, spill);
2671 store->next = ins->next;
2674 DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
2675 spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
2679 /*========================= End of Function ========================*/
2681 /*------------------------------------------------------------------*/
2683 /* Name - insert_before_ins */
2685 /* Function - Insert an instruction before another. */
2687 /*------------------------------------------------------------------*/
2690 insert_before_ins (MonoInst *ins, InstList *item, MonoInst* to_insert)
2693 g_assert (item->next);
2694 prev = item->next->data;
2696 while (prev->next != ins)
2698 to_insert->next = ins;
2699 prev->next = to_insert;
2701 * needed otherwise in the next instruction we can add an ins to the
2702 * end and that would get past this instruction.
2704 item->data = to_insert;
2707 /*========================= End of Function ========================*/
2709 /*------------------------------------------------------------------*/
2711 /* Name - alloc_int_reg */
2713 /* Function - Allocate a general register. */
2715 /*------------------------------------------------------------------*/
2718 alloc_int_reg (MonoCompile *cfg, InstList *curinst, MonoInst *ins, int sym_reg, guint32 allow_mask)
2720 int val = cfg->rs->iassign [sym_reg];
2721 DEBUG (g_print ("Allocating a general register for %d (%d) with mask %08x\n",val,sym_reg,allow_mask));
2725 /* the register gets spilled after this inst */
2728 val = mono_regstate_alloc_int (cfg->rs, allow_mask);
2730 val = get_register_spilling (cfg, curinst, ins, allow_mask, sym_reg);
2731 cfg->rs->iassign [sym_reg] = val;
2732 /* add option to store before the instruction for src registers */
2734 create_spilled_store (cfg, spill, val, sym_reg, ins);
2736 DEBUG (g_print ("Allocated %d for %d\n",val,sym_reg));
2737 cfg->rs->isymbolic [val] = sym_reg;
2741 /*========================= End of Function ========================*/
2743 /*------------------------------------------------------------------*/
2745 /* Name - mono_arch_local_regalloc. */
2747 /* Function - We first scan the list of instructions and we */
2748 /* save the liveness information of each register */
2749 /* (when the register is first used, when its value */
2750 /* is set etc.). We also reverse the list of instr- */
2751 /* uctions (in the InstList list) because assigning */
2752 /* registers backwards allows for more tricks to be */
2755 /*------------------------------------------------------------------*/
2758 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2761 MonoRegState *rs = cfg->rs;
2763 RegTrack *reginfo, *reginfof;
2764 RegTrack *reginfo1, *reginfo2, *reginfod;
2765 InstList *tmp, *reversed = NULL;
2767 guint32 src1_mask, src2_mask, dest_mask;
2768 guint32 cur_iregs, cur_fregs;
2772 rs->next_vireg = bb->max_ireg;
2773 rs->next_vfreg = bb->max_freg;
2774 mono_regstate_assign (rs);
2775 reginfo = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vireg);
2776 reginfof = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vfreg);
2777 rs->ifree_mask = S390_CALLER_REGS;
2778 rs->ffree_mask = S390_CALLER_FREGS;
2782 DEBUG (g_print ("LOCAL regalloc: basic block: %d\n", bb->block_num));
2783 /* forward pass on the instructions to collect register liveness info */
2785 spec = ins_spec [ins->opcode];
2786 DEBUG (print_ins (i, ins));
2787 // if (spec [MONO_INST_CLOB] == 'c') {
2788 // MonoCallInst * call = (MonoCallInst*)ins;
2791 if (spec [MONO_INST_SRC1]) {
2792 if (spec [MONO_INST_SRC1] == 'f')
2793 reginfo1 = reginfof;
2796 reginfo1 [ins->sreg1].prev_use = reginfo1 [ins->sreg1].last_use;
2797 reginfo1 [ins->sreg1].last_use = i;
2801 if (spec [MONO_INST_SRC2]) {
2802 if (spec [MONO_INST_SRC2] == 'f')
2803 reginfo2 = reginfof;
2806 reginfo2 [ins->sreg2].prev_use = reginfo2 [ins->sreg2].last_use;
2807 reginfo2 [ins->sreg2].last_use = i;
2811 if (spec [MONO_INST_DEST]) {
2812 if (spec [MONO_INST_DEST] == 'f')
2813 reginfod = reginfof;
2816 if (spec [MONO_INST_DEST] != 'b') /* it's not just a base register */
2817 reginfod [ins->dreg].killed_in = i;
2818 reginfod [ins->dreg].prev_use = reginfod [ins->dreg].last_use;
2819 reginfod [ins->dreg].last_use = i;
2820 if (reginfod [ins->dreg].born_in == 0 || reginfod [ins->dreg].born_in > i)
2821 reginfod [ins->dreg].born_in = i;
2822 if (spec [MONO_INST_DEST] == 'l') {
2823 /* result in R2/R3, the virtual register is allocated sequentially */
2824 reginfod [ins->dreg + 1].prev_use = reginfod [ins->dreg + 1].last_use;
2825 reginfod [ins->dreg + 1].last_use = i;
2826 if (reginfod [ins->dreg + 1].born_in == 0 || reginfod [ins->dreg + 1].born_in > i)
2827 reginfod [ins->dreg + 1].born_in = i;
2832 reversed = inst_list_prepend (cfg->mempool, reversed, ins);
2837 cur_iregs = S390_CALLER_REGS;
2838 cur_fregs = S390_CALLER_FREGS;
2840 DEBUG (print_regtrack (reginfo, rs->next_vireg));
2841 DEBUG (print_regtrack (reginfof, rs->next_vfreg));
2844 int prev_dreg, prev_sreg1, prev_sreg2;
2847 spec = ins_spec [ins->opcode];
2848 DEBUG (g_print ("processing:"));
2849 DEBUG (print_ins (i, ins));
2850 /* make the register available for allocation: FIXME add fp reg */
2851 if (ins->opcode == OP_SETREG || ins->opcode == OP_SETREGIMM) {
2852 cur_iregs |= 1 << ins->dreg;
2853 DEBUG (g_print ("adding %d to cur_iregs\n", ins->dreg));
2854 } else if (ins->opcode == OP_SETFREG) {
2855 cur_fregs |= 1 << ins->dreg;
2856 DEBUG (g_print ("adding %d to cur_fregs\n", ins->dreg));
2857 } else if (spec [MONO_INST_CLOB] == 'c') {
2858 MonoCallInst *cinst = (MonoCallInst*)ins;
2859 DEBUG (g_print ("excluding regs 0x%x from cur_iregs (0x%x)\n",
2860 cinst->used_iregs, cur_iregs));
2861 DEBUG (g_print ("excluding fpregs 0x%x from cur_fregs (0x%x)\n",
2862 cinst->used_fregs, cur_fregs));
2863 cur_iregs &= ~cinst->used_iregs;
2864 cur_fregs &= ~cinst->used_fregs;
2865 DEBUG (g_print ("available cur_iregs: 0x%x\n", cur_iregs));
2866 DEBUG (g_print ("available cur_fregs: 0x%x\n", cur_fregs));
2867 /*------------------------------------------------------------*/
2868 /* registers used by the calling convention are excluded from */
2869 /* allocation: they will be selectively enabled when they are */
2870 /* assigned by the special SETREG opcodes. */
2871 /*------------------------------------------------------------*/
2873 dest_mask = src1_mask = src2_mask = cur_iregs;
2874 /*------------------------------------------------------*/
2875 /* update for use with FP regs... */
2876 /*------------------------------------------------------*/
2877 if (spec [MONO_INST_DEST] == 'f') {
2878 dest_mask = cur_fregs;
2879 if (ins->dreg >= MONO_MAX_FREGS) {
2880 val = rs->fassign [ins->dreg];
2881 prev_dreg = ins->dreg;
2885 /* the register gets spilled after this inst */
2888 val = mono_regstate_alloc_float (rs, dest_mask);
2890 val = get_float_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
2891 rs->fassign [ins->dreg] = val;
2893 create_spilled_store_float (cfg, spill, val, prev_dreg, ins);
2895 DEBUG (g_print ("\tassigned dreg %s to dest R%d\n",
2896 mono_arch_regname (val), ins->dreg));
2897 rs->fsymbolic [val] = prev_dreg;
2899 if (spec [MONO_INST_CLOB] == 'c' && ins->dreg != s390_f0) {
2900 /* this instruction only outputs to s390_f0, need to copy */
2901 create_copy_ins_float (cfg, ins->dreg, s390_f0, ins);
2906 if (freg_is_freeable (ins->dreg) && prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i || !(cur_fregs & (1 << ins->dreg)))) {
2907 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2908 mono_regstate_free_float (rs, ins->dreg);
2910 } else if (ins->dreg >= MONO_MAX_IREGS) {
2911 val = rs->iassign [ins->dreg];
2912 prev_dreg = ins->dreg;
2916 /* the register gets spilled after this inst */
2919 val = mono_regstate_alloc_int (rs, dest_mask);
2921 val = get_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
2922 rs->iassign [ins->dreg] = val;
2924 create_spilled_store (cfg, spill, val, prev_dreg, ins);
2926 DEBUG (g_print ("\tassigned dreg %s to dest R%d (prev: R%d)\n",
2927 mono_arch_regname (val), ins->dreg, prev_dreg));
2928 rs->isymbolic [val] = prev_dreg;
2930 if (spec [MONO_INST_DEST] == 'l') {
2931 int hreg = prev_dreg + 1;
2932 val = rs->iassign [hreg];
2936 /* the register gets spilled after this inst */
2939 val = mono_regstate_alloc_int (rs, dest_mask);
2941 val = get_register_spilling (cfg, tmp, ins, dest_mask, hreg);
2942 rs->iassign [hreg] = val;
2944 create_spilled_store (cfg, spill, val, hreg, ins);
2946 DEBUG (g_print ("\tassigned hreg %s to dest R%d\n", mono_arch_regname (val), hreg));
2947 rs->isymbolic [val] = hreg;
2948 /* FIXME:? ins->dreg = val; */
2949 if (ins->dreg == s390_r3) {
2951 create_copy_ins (cfg, val, s390_r2, ins);
2952 } else if (ins->dreg == s390_r2) {
2953 if (val == s390_r3) {
2955 create_copy_ins (cfg, s390_r3, s390_r0, ins);
2956 create_copy_ins (cfg, s390_r2, s390_r3, ins);
2957 create_copy_ins (cfg, s390_r0, s390_r2, ins);
2959 /* two forced copies */
2960 create_copy_ins (cfg, ins->dreg, s390_r3, ins);
2961 create_copy_ins (cfg, val, s390_r2, ins);
2964 if (val == s390_r2) {
2965 create_copy_ins (cfg, ins->dreg, s390_r2, ins);
2967 /* two forced copies */
2968 create_copy_ins (cfg, val, s390_r2, ins);
2969 create_copy_ins (cfg, ins->dreg, s390_r3, ins);
2972 if (reg_is_freeable (val) &&
2974 (reginfo [hreg].born_in >= i &&
2975 !(cur_iregs & (1 << val)))) {
2976 DEBUG (g_print ("\tfreeable %s (R%d)\n", mono_arch_regname (val), hreg));
2977 mono_regstate_free_int (rs, val);
2979 } else if (spec [MONO_INST_DEST] == 'a' && ins->dreg != s390_r2 && spec [MONO_INST_CLOB] != 'd') {
2980 /* this instruction only outputs to s390_r2, need to copy */
2981 create_copy_ins (cfg, ins->dreg, s390_r2, ins);
2986 if (spec [MONO_INST_DEST] == 'f' &&
2987 freg_is_freeable (ins->dreg) &&
2988 prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i)) {
2989 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2990 mono_regstate_free_float (rs, ins->dreg);
2991 } else if (spec [MONO_INST_DEST] != 'f' &&
2992 reg_is_freeable (ins->dreg) &&
2993 prev_dreg >= 0 && (reginfo [prev_dreg].born_in >= i)) {
2994 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2995 mono_regstate_free_int (rs, ins->dreg);
2997 if (spec [MONO_INST_SRC1] == 'f') {
2998 src1_mask = cur_fregs;
2999 if (ins->sreg1 >= MONO_MAX_FREGS) {
3000 val = rs->fassign [ins->sreg1];
3001 prev_sreg1 = ins->sreg1;
3005 /* the register gets spilled after this inst */
3008 val = mono_regstate_alloc_float (rs, src1_mask);
3010 val = get_float_register_spilling (cfg, tmp, ins, src1_mask, ins->sreg1);
3011 rs->fassign [ins->sreg1] = val;
3012 DEBUG (g_print ("\tassigned sreg1 %s to R%d\n", mono_arch_regname (val), ins->sreg1));
3014 MonoInst *store = create_spilled_store_float (cfg, spill, val, prev_sreg1, NULL);
3015 insert_before_ins (ins, tmp, store);
3018 rs->fsymbolic [val] = prev_sreg1;
3023 } else if (ins->sreg1 >= MONO_MAX_IREGS) {
3024 val = rs->iassign [ins->sreg1];
3025 prev_sreg1 = ins->sreg1;
3029 /* the register gets spilled after this inst */
3032 val = mono_regstate_alloc_int (rs, src1_mask);
3034 val = get_register_spilling (cfg, tmp, ins,
3037 rs->iassign [ins->sreg1] = val;
3038 DEBUG (g_print ("\tassigned sreg1 %s to R%d\n",
3039 mono_arch_regname (val), ins->sreg1));
3042 store = create_spilled_store (cfg, spill, val,
3044 insert_before_ins (ins, tmp, store);
3047 rs->isymbolic [val] = prev_sreg1;
3052 /*----------------------------------------------*/
3053 /* handle clobbering of sreg1 */
3054 /*----------------------------------------------*/
3055 if ((spec [MONO_INST_CLOB] == '1' ||
3056 spec [MONO_INST_CLOB] == 's') &&
3057 ins->dreg != ins->sreg1) {
3059 copy = create_copy_ins (cfg, ins->dreg, ins->sreg1, NULL);
3060 DEBUG (g_print ("\tneed to copy sreg1 %s to dreg %s\n",
3061 mono_arch_regname (ins->sreg1),
3062 mono_arch_regname (ins->dreg)));
3063 if (ins->sreg2 == -1 || spec [MONO_INST_CLOB] == 's') {
3064 /* note: the copy is inserted before the current instruction! */
3065 insert_before_ins (ins, tmp, copy);
3066 /* we set sreg1 to dest as well */
3067 prev_sreg1 = ins->sreg1 = ins->dreg;
3069 /* inserted after the operation */
3070 copy->next = ins->next;
3075 if (spec [MONO_INST_SRC2] == 'f') {
3076 src2_mask = cur_fregs;
3077 if (ins->sreg2 >= MONO_MAX_FREGS) {
3078 val = rs->fassign [ins->sreg2];
3079 prev_sreg2 = ins->sreg2;
3083 /* the register gets spilled after this inst */
3086 val = mono_regstate_alloc_float (rs, src2_mask);
3088 val = get_float_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
3089 rs->fassign [ins->sreg2] = val;
3090 DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
3092 create_spilled_store_float (cfg, spill, val, prev_sreg2, ins);
3094 rs->fsymbolic [val] = prev_sreg2;
3099 } else if (ins->sreg2 >= MONO_MAX_IREGS) {
3100 val = rs->iassign [ins->sreg2];
3101 prev_sreg2 = ins->sreg2;
3105 /* the register gets spilled after this inst */
3108 val = mono_regstate_alloc_int (rs, src2_mask);
3110 val = get_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
3111 rs->iassign [ins->sreg2] = val;
3112 DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
3114 create_spilled_store (cfg, spill, val, prev_sreg2, ins);
3116 rs->isymbolic [val] = prev_sreg2;
3122 if (spec [MONO_INST_CLOB] == 'c') {
3124 guint32 clob_mask = S390_CALLER_REGS;
3125 for (j = 0; j < MONO_MAX_IREGS; ++j) {
3127 if ((clob_mask & s) && !(rs->ifree_mask & s) && j != ins->sreg1) {
3128 //g_warning ("register %s busy at call site\n", mono_arch_regname (j));
3136 /*========================= End of Function ========================*/
3138 /*------------------------------------------------------------------*/
3140 /* Name - emit_float_to_int */
3142 /* Function - Create instructions which will convert a floating */
3143 /* point value to integer. */
3145 /*------------------------------------------------------------------*/
3148 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
3150 /* sreg is a float, dreg is an integer reg. */
3152 s390_cfdbr (code, dreg, 5, sreg);
3155 s390_lhi (code, s390_r0, 0);
3156 s390_lhi (code, s390_r13, 0xff);
3157 s390_ltr (code, dreg, dreg);
3159 s390_lhi (code, s390_r0, 0x80);
3160 s390_nr (code, dreg, s390_r13);
3161 s390_or (code, dreg, s390_r0);
3165 s390_basr (code, s390_r13, 0);
3167 s390_llong (code, 0x41e0000000000000);
3168 s390_llong (code, 0x41f0000000000000);
3169 s390_ldr (code, s390_f15, sreg);
3170 s390_cdb (code, s390_f15, 0, s390_r13, 0);
3172 s390_sdb (code, s390_f15, 0, s390_r13, 8);
3173 s390_cfdbr (code, dreg, 7, s390_f15);
3175 s390_cfdbr (code, dreg, 5, sreg);
3178 s390_lhi (code, s390_r0, 0xff);
3179 s390_nr (code, dreg, s390_r0);
3182 s390_lhi (code, s390_r0, -1);
3183 s390_srl (code, s390_r0, 0, 16);
3184 s390_nr (code, dreg, s390_r0);
3191 /*========================= End of Function ========================*/
3193 /*------------------------------------------------------------------*/
3195 /* Name - mono_emit_stack_alloc */
3199 /*------------------------------------------------------------------*/
3201 static unsigned char*
3202 mono_emit_stack_alloc (guchar *code, MonoInst* tree)
3207 /*========================= End of Function ========================*/
3209 /*------------------------------------------------------------------*/
3211 /* Name - mono_arch_output_basic_block */
3213 /* Function - Perform the "real" work of emitting instructions */
3214 /* that will do the work of in the basic block. */
3216 /*------------------------------------------------------------------*/
3219 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
3224 guint8 *code = cfg->native_code + cfg->code_len;
3225 MonoInst *last_ins = NULL;
3226 guint last_offset = 0;
3227 int max_len, cpos, src2;
3229 if (cfg->opt & MONO_OPT_PEEPHOLE)
3230 peephole_pass (cfg, bb);
3232 /* we don't align basic blocks of loops on s390 */
3234 if (cfg->verbose_level > 2)
3235 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
3237 cpos = bb->max_offset;
3239 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
3240 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
3241 //g_assert (!mono_compile_aot);
3244 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
3245 /* this is not thread save, but good enough */
3246 /* fixme: howto handle overflows? */
3247 //x86_inc_mem (code, &cov->data [bb->dfn].count);
3252 offset = code - cfg->native_code;
3254 max_len = ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
3256 if (offset > (cfg->code_size - max_len - 16)) {
3257 cfg->code_size *= 2;
3258 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
3259 code = cfg->native_code + offset;
3262 mono_debug_record_line_number (cfg, ins, offset);
3264 switch (ins->opcode) {
3265 case OP_STOREI1_MEMBASE_IMM: {
3266 s390_lhi (code, s390_r0, ins->inst_imm);
3267 if (s390_is_uimm12(ins->inst_offset))
3268 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
3270 s390_basr (code, s390_r13, 0);
3272 s390_word (code, ins->inst_offset);
3273 s390_l (code, s390_r13, 0, s390_r13, 4);
3274 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
3278 case OP_STOREI2_MEMBASE_IMM: {
3279 s390_lhi (code, s390_r0, ins->inst_imm);
3280 if (s390_is_uimm12(ins->inst_offset)) {
3281 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
3283 s390_basr (code, s390_r13, 0);
3285 s390_word (code, ins->inst_offset);
3286 s390_l (code, s390_r13, 0, s390_r13, 4);
3287 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
3291 case OP_STORE_MEMBASE_IMM:
3292 case OP_STOREI4_MEMBASE_IMM: {
3293 if (s390_is_uimm16(ins->inst_imm)) {
3294 s390_lhi (code, s390_r0, ins->inst_imm);
3296 s390_basr (code, s390_r13, 0);
3298 s390_word (code, ins->inst_imm);
3299 s390_l (code, s390_r0, 0, s390_r13, 4);
3301 if (s390_is_uimm12(ins->inst_offset)) {
3302 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
3304 s390_basr (code, s390_r13, 0);
3306 s390_word (code, ins->inst_offset);
3307 s390_l (code, s390_r13, 0, s390_r13, 4);
3308 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
3312 case OP_STOREI1_MEMBASE_REG: {
3313 if (s390_is_uimm12(ins->inst_offset)) {
3314 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3316 s390_basr (code, s390_r13, 0);
3318 s390_word (code, ins->inst_offset);
3319 s390_l (code, s390_r13, 0, s390_r13, 4);
3320 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3324 case OP_STOREI2_MEMBASE_REG: {
3325 if (s390_is_uimm12(ins->inst_offset)) {
3326 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3328 s390_basr (code, s390_r13, 0);
3330 s390_word (code, ins->inst_offset);
3331 s390_l (code, s390_r13, 0, s390_r13, 4);
3332 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3336 case OP_STORE_MEMBASE_REG:
3337 case OP_STOREI4_MEMBASE_REG: {
3338 if (s390_is_uimm12(ins->inst_offset)) {
3339 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3341 s390_basr (code, s390_r13, 0);
3343 s390_word (code, ins->inst_offset);
3344 s390_l (code, s390_r13, 0, s390_r13, 4);
3345 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3351 case CEE_LDIND_U4: {
3352 s390_basr (code, s390_r13, 0);
3354 s390_word (code, ins->inst_p0);
3355 s390_l (code, s390_r13, 0, s390_r13, 4);
3356 s390_l (code, ins->dreg, 0, s390_r13, 0);
3360 g_assert_not_reached ();
3362 case OP_LOAD_MEMBASE:
3363 case OP_LOADI4_MEMBASE:
3364 case OP_LOADU4_MEMBASE: {
3365 if (s390_is_uimm12(ins->inst_offset))
3366 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3368 if (s390_is_uimm16(ins->inst_offset)) {
3369 s390_lhi (code, s390_r13, ins->inst_offset);
3370 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3372 s390_basr (code, s390_r13, 0);
3374 s390_word (code, ins->inst_offset);
3375 s390_l (code, s390_r13, 0, s390_r13, 4);
3376 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3381 case OP_LOADU1_MEMBASE: {
3382 s390_lhi (code, s390_r0, 0);
3383 if (s390_is_uimm12(ins->inst_offset))
3384 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3386 s390_basr (code, s390_r13, 0);
3388 s390_word (code, ins->inst_offset);
3389 s390_l (code, s390_r13, 0, s390_r13, 4);
3390 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3392 s390_lr (code, ins->dreg, s390_r0);
3395 case OP_LOADI1_MEMBASE: {
3396 s390_lhi (code, s390_r0, 0);
3397 if (s390_is_uimm12(ins->inst_offset))
3398 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3400 s390_basr (code, s390_r13, 0);
3402 s390_word (code, ins->inst_offset);
3403 s390_l (code, s390_r13, 0, s390_r13, 4);
3404 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3406 s390_lhi (code, s390_r13, 0x80);
3407 s390_nr (code, s390_r13, s390_r0);
3409 s390_lhi (code, s390_r13, 0xff00);
3410 s390_or (code, s390_r0, s390_r13);
3411 s390_lr (code, ins->dreg, s390_r0);
3414 case OP_LOADU2_MEMBASE: {
3415 s390_lhi (code, s390_r0, 0);
3416 if (s390_is_uimm12(ins->inst_offset))
3417 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
3419 s390_basr (code, s390_r13, 0);
3421 s390_word (code, ins->inst_offset);
3422 s390_l (code, s390_r13, 0, s390_r13, 4);
3423 s390_ar (code, s390_r13, ins->inst_basereg);
3424 s390_icm (code, s390_r0, 3, s390_r13, 0);
3426 s390_lr (code, ins->dreg, s390_r0);
3429 case OP_LOADI2_MEMBASE: {
3430 s390_lhi (code, s390_r0, 0);
3431 if (s390_is_uimm12(ins->inst_offset))
3432 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3434 s390_basr (code, s390_r13, 0);
3436 s390_word (code, ins->inst_offset);
3437 s390_l (code, s390_r13, 0, s390_r13, 4);
3438 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3440 s390_lr (code, ins->dreg, s390_r0);
3444 s390_lhi (code, s390_r0, 0x80);
3445 if (ins->dreg != ins->sreg1) {
3446 s390_lr (code, ins->dreg, ins->sreg1);
3448 s390_nr (code, s390_r0, ins->sreg1);
3450 s390_lhi (code, s390_r13, -1);
3451 s390_sll (code, s390_r13, 0, 8);
3452 s390_or (code, ins->dreg, s390_r13);
3456 s390_lhi (code, s390_r0, 0x80);
3457 s390_sll (code, s390_r0, 0, 8);
3458 if (ins->dreg != ins->sreg1) {
3459 s390_lr (code, ins->dreg, ins->sreg1);
3461 s390_nr (code, s390_r0, ins->sreg1);
3463 s390_lhi (code, s390_r13, -1);
3464 s390_sll (code, s390_r13, 0, 16);
3465 s390_or (code, ins->dreg, s390_r13);
3469 s390_lhi (code, s390_r0, 0xff);
3470 if (ins->dreg != ins->sreg1) {
3471 s390_lr (code, ins->dreg, ins->sreg1);
3473 s390_nr (code, ins->dreg, s390_r0);
3477 s390_lhi (code, s390_r0, -1);
3478 s390_sll (code, s390_r0, 0, 16);
3479 s390_srl (code, s390_r0, 0, 16);
3480 if (ins->dreg != ins->sreg1) {
3481 s390_lr (code, ins->dreg, ins->sreg1);
3483 s390_nr (code, ins->dreg, s390_r0);
3488 ((ins->next->opcode >= CEE_BNE_UN) &&
3489 (ins->next->opcode <= CEE_BLT_UN)) ||
3490 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3491 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3492 ((ins->next->opcode == OP_CLT_UN) ||
3493 (ins->next->opcode == OP_CGT_UN)))
3494 s390_clr (code, ins->sreg1, ins->sreg2);
3496 s390_cr (code, ins->sreg1, ins->sreg2);
3499 case OP_COMPARE_IMM: {
3500 if (s390_is_uimm16 (ins->inst_imm)) {
3501 s390_lhi (code, s390_r0, ins->inst_imm);
3503 ((ins->next->opcode >= CEE_BNE_UN) &&
3504 (ins->next->opcode <= CEE_BLT_UN)) ||
3505 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3506 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3507 ((ins->next->opcode == OP_CLT_UN) ||
3508 (ins->next->opcode == OP_CGT_UN)))
3509 s390_clr (code, ins->sreg1, s390_r0);
3511 s390_cr (code, ins->sreg1, s390_r0);
3514 s390_basr (code, s390_r13, 0);
3516 s390_word (code, ins->inst_imm);
3518 ((ins->next->opcode >= CEE_BNE_UN) &&
3519 (ins->next->opcode <= CEE_BLT_UN)) ||
3520 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3521 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3522 ((ins->next->opcode == OP_CLT_UN) &&
3523 (ins->next->opcode == OP_CGT_UN)))
3524 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
3526 s390_c (code, ins->sreg1, 0, s390_r13, 4);
3530 case OP_X86_TEST_NULL: {
3531 s390_ltr (code, ins->sreg1, ins->sreg1);
3540 s390_alr (code, ins->dreg, src2);
3545 s390_ar (code, ins->dreg, src2);
3550 s390_alcr (code, ins->dreg, src2);
3556 (ins->next->opcode == OP_ADC_IMM)) {
3557 s390_basr (code, s390_r13, 0);
3559 s390_word (code, ins->inst_imm);
3560 if (ins->dreg != ins->sreg1) {
3561 s390_lr (code, ins->dreg, ins->sreg1);
3563 s390_al (code, ins->dreg, 0, s390_r13, 4);
3565 if (s390_is_uimm16 (ins->inst_imm)) {
3566 if (ins->dreg != ins->sreg1) {
3567 s390_lr (code, ins->dreg, ins->sreg1);
3569 s390_ahi (code, ins->dreg, ins->inst_imm);
3571 s390_basr (code, s390_r13, 0);
3573 s390_word (code, ins->inst_imm);
3574 if (ins->dreg != ins->sreg1) {
3575 s390_lr (code, ins->dreg, ins->sreg1);
3577 s390_a (code, ins->dreg, 0, s390_r13, 4);
3583 if (s390_is_uimm16 (ins->inst_imm)) {
3584 if (ins->dreg != ins->sreg1) {
3585 s390_lr (code, ins->dreg, ins->sreg1);
3587 s390_lhi (code, s390_r0, ins->inst_imm);
3588 s390_alcr (code, ins->dreg, s390_r0);
3590 s390_basr (code, s390_r13, 0);
3592 s390_word (code, ins->inst_imm);
3593 s390_l (code, s390_r13, 0, s390_r13, 4);
3594 s390_alcr (code, ins->dreg, s390_r13);
3600 s390_ar (code, ins->dreg, src2);
3601 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3604 case CEE_ADD_OVF_UN: {
3606 s390_alr (code, ins->dreg, src2);
3607 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3610 case OP_ADD_OVF_CARRY: {
3612 s390_lhi (code, s390_r0, 0);
3613 s390_lr (code, s390_r1, s390_r0);
3614 s390_alcr (code, s390_r0, s390_r1);
3615 s390_ar (code, ins->dreg, src2);
3616 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3617 s390_ar (code, ins->dreg, s390_r0);
3618 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3621 case OP_ADD_OVF_UN_CARRY: {
3623 s390_alcr (code, ins->dreg, src2);
3624 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3629 s390_slr (code, ins->dreg, src2);
3634 s390_sr (code, ins->dreg, src2);
3639 s390_slbr (code, ins->dreg, src2);
3642 case OP_SUBCC_IMM: {
3643 if (s390_is_uimm16 (-ins->inst_imm)) {
3644 if (ins->dreg != ins->sreg1) {
3645 s390_lr (code, ins->dreg, ins->sreg1);
3647 s390_ahi (code, ins->dreg, -ins->inst_imm);
3649 s390_basr (code, s390_r13, 0);
3651 s390_word (code, ins->inst_imm);
3652 if (ins->dreg != ins->sreg1) {
3653 s390_lr (code, ins->dreg, ins->sreg1);
3655 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3660 if (s390_is_uimm16 (-ins->inst_imm)) {
3661 if (ins->dreg != ins->sreg1) {
3662 s390_lr (code, ins->dreg, ins->sreg1);
3664 s390_ahi (code, ins->dreg, -ins->inst_imm);
3666 s390_basr (code, s390_r13, 0);
3668 s390_word (code, ins->inst_imm);
3669 if (ins->dreg != ins->sreg1) {
3670 s390_lr (code, ins->dreg, ins->sreg1);
3672 s390_s (code, ins->dreg, 0, s390_r13, 4);
3677 if (ins->dreg != ins->sreg1) {
3678 s390_lr (code, ins->dreg, ins->sreg1);
3680 if (s390_is_uimm16 (-ins->inst_imm)) {
3681 s390_lhi (code, s390_r0, ins->inst_imm);
3682 s390_slbr (code, ins->dreg, s390_r0);
3684 s390_basr (code, s390_r13, 0);
3686 s390_word (code, ins->inst_imm);
3687 s390_slb (code, ins->dreg, 0, s390_r13, 4);
3693 s390_sr (code, ins->dreg, src2);
3694 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3697 case CEE_SUB_OVF_UN: {
3699 s390_slr (code, ins->dreg, src2);
3700 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3703 case OP_SUB_OVF_CARRY: {
3705 s390_lhi (code, s390_r0, 0);
3706 s390_lr (code, s390_r1, s390_r0);
3707 s390_slbr (code, s390_r0, s390_r1);
3708 s390_sr (code, ins->dreg, src2);
3709 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3710 s390_ar (code, ins->dreg, s390_r0);
3711 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3714 case OP_SUB_OVF_UN_CARRY: {
3716 s390_slbr (code, ins->dreg, src2);
3717 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3721 if (ins->sreg1 == ins->dreg) {
3722 s390_nr (code, ins->dreg, ins->sreg2);
3725 if (ins->sreg2 == ins->dreg) {
3726 s390_nr (code, ins->dreg, ins->sreg1);
3729 s390_lr (code, ins->dreg, ins->sreg1);
3730 s390_nr (code, ins->dreg, ins->sreg2);
3736 if (s390_is_uimm16 (ins->inst_imm)) {
3737 s390_lhi (code, s390_r0, ins->inst_imm);
3738 if (ins->dreg != ins->sreg1) {
3739 s390_lr (code, ins->dreg, ins->sreg1);
3741 s390_nr (code, ins->dreg, s390_r0);
3743 s390_basr (code, s390_r13, 0);
3745 s390_word (code, ins->inst_imm);
3746 if (ins->dreg != ins->sreg1) {
3747 s390_lr (code, ins->dreg, ins->sreg1);
3749 s390_n (code, ins->dreg, 0, s390_r13, 4);
3754 s390_lr (code, s390_r0, ins->sreg1);
3755 s390_srda (code, s390_r0, 0, 32);
3756 s390_dr (code, s390_r0, ins->sreg2);
3757 s390_lr (code, ins->dreg, s390_r1);
3761 s390_lr (code, s390_r0, ins->sreg1);
3762 s390_srdl (code, s390_r0, 0, 32);
3763 s390_dlr (code, s390_r0, ins->sreg2);
3764 s390_lr (code, ins->dreg, s390_r1);
3768 if (s390_is_uimm16 (ins->inst_imm)) {
3769 s390_lhi (code, s390_r13, ins->inst_imm);
3770 s390_lr (code, s390_r0, ins->sreg1);
3772 s390_basr (code, s390_r13, 0);
3774 s390_word (code, ins->inst_imm);
3775 s390_lr (code, s390_r0, ins->sreg1);
3776 s390_l (code, s390_r13, 0, s390_r13, 4);
3778 s390_srda (code, s390_r0, 0, 32);
3779 s390_dr (code, s390_r0, s390_r13);
3780 s390_lr (code, ins->dreg, s390_r1);
3784 s390_lr (code, s390_r0, ins->sreg1);
3785 s390_srda (code, s390_r0, 0, 32);
3786 s390_dr (code, s390_r0, ins->sreg2);
3787 s390_lr (code, ins->dreg, s390_r0);
3790 s390_lr (code, s390_r0, ins->sreg1);
3791 s390_srdl (code, s390_r0, 0, 32);
3792 s390_dlr (code, s390_r0, ins->sreg2);
3793 s390_lr (code, ins->dreg, s390_r0);
3797 if (s390_is_uimm16 (ins->inst_imm)) {
3798 s390_lhi (code, s390_r13, ins->inst_imm);
3799 s390_lr (code, s390_r0, ins->sreg1);
3801 s390_basr (code, s390_r13, 0);
3803 s390_word (code, ins->inst_imm);
3804 s390_lr (code, s390_r0, ins->sreg1);
3805 s390_l (code, s390_r13, 0, s390_r13, 4);
3807 s390_srda (code, s390_r0, 0, 32);
3808 s390_dr (code, s390_r0, s390_r13);
3809 s390_lr (code, ins->dreg, s390_r0);
3813 if (ins->sreg1 == ins->dreg) {
3814 s390_or (code, ins->dreg, ins->sreg2);
3817 if (ins->sreg2 == ins->dreg) {
3818 s390_or (code, ins->dreg, ins->sreg1);
3821 s390_lr (code, ins->dreg, ins->sreg1);
3822 s390_or (code, ins->dreg, ins->sreg2);
3828 if (s390_is_uimm16 (ins->inst_imm)) {
3829 s390_lhi (code, s390_r0, ins->inst_imm);
3830 if (ins->dreg != ins->sreg1) {
3831 s390_lr (code, ins->dreg, ins->sreg1);
3833 s390_or (code, ins->dreg, s390_r0);
3835 s390_basr (code, s390_r13, 0);
3837 s390_word (code, ins->inst_imm);
3838 if (ins->dreg != ins->sreg1) {
3839 s390_lr (code, ins->dreg, ins->sreg1);
3841 s390_o (code, ins->dreg, 0, s390_r13, 4);
3846 if (ins->sreg1 == ins->dreg) {
3847 s390_xr (code, ins->dreg, ins->sreg2);
3850 if (ins->sreg2 == ins->dreg) {
3851 s390_xr (code, ins->dreg, ins->sreg1);
3854 s390_lr (code, ins->dreg, ins->sreg1);
3855 s390_xr (code, ins->dreg, ins->sreg2);
3861 if (s390_is_uimm16 (ins->inst_imm)) {
3862 s390_lhi (code, s390_r0, ins->inst_imm);
3863 if (ins->dreg != ins->sreg1) {
3864 s390_lr (code, ins->dreg, ins->sreg1);
3866 s390_xr (code, ins->dreg, s390_r0);
3868 s390_basr (code, s390_r13, 0);
3870 s390_word (code, ins->inst_imm);
3871 if (ins->dreg != ins->sreg1) {
3872 s390_lr (code, ins->dreg, ins->sreg1);
3874 s390_x (code, ins->dreg, 0, s390_r13, 4);
3880 s390_sll (code, ins->dreg, src2, 0);
3884 if (ins->sreg1 != ins->dreg) {
3885 s390_lr (code, ins->dreg, ins->sreg1);
3887 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3892 s390_sra (code, ins->dreg, src2, 0);
3896 if (ins->sreg1 != ins->dreg) {
3897 s390_lr (code, ins->dreg, ins->sreg1);
3899 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3902 case OP_SHR_UN_IMM: {
3903 if (ins->sreg1 != ins->dreg) {
3904 s390_lr (code, ins->dreg, ins->sreg1);
3906 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3911 s390_srl (code, ins->dreg, src2, 0);
3915 if (ins->sreg1 != ins->dreg) {
3916 s390_lr (code, ins->dreg, ins->sreg1);
3918 s390_lhi (code, s390_r0, -1);
3919 s390_xr (code, ins->dreg, s390_r0);
3923 s390_lcr (code, ins->dreg, ins->sreg1);
3927 if (ins->sreg1 == ins->dreg) {
3928 s390_msr (code, ins->dreg, ins->sreg2);
3931 if (ins->sreg2 == ins->dreg) {
3932 s390_msr (code, ins->dreg, ins->sreg1);
3935 s390_lr (code, ins->dreg, ins->sreg1);
3936 s390_msr (code, ins->dreg, ins->sreg2);
3942 if (s390_is_uimm16 (ins->inst_imm)) {
3943 s390_lhi (code, s390_r13, ins->inst_imm);
3945 s390_basr (code, s390_r13, 0);
3947 s390_word (code, ins->inst_imm);
3948 if (ins->dreg != ins->sreg1) {
3949 s390_lr (code, ins->dreg, ins->sreg1);
3951 s390_l (code, s390_r13, 0, s390_r13, 4);
3953 s390_msr (code, ins->dreg, s390_r13);
3958 s390_ltr (code, s390_r1, ins->sreg1);
3959 s390_jz (code, 0); CODEPTR(code, o[0]);
3960 s390_ltr (code, s390_r0, ins->sreg2);
3962 s390_lhi (code, s390_r1, 0);
3963 s390_j (code, 0); CODEPTR(code, o[1]);
3964 s390_xr (code, s390_r0, s390_r1);
3965 s390_msr (code, s390_r1, ins->sreg2);
3966 s390_xr (code, s390_r0, s390_r1);
3967 s390_srl (code, s390_r0, 0, 31);
3968 s390_ltr (code, s390_r0, s390_r0);
3969 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3970 PTRSLOT (code, o[0]);
3971 PTRSLOT (code, o[1]);
3972 s390_lr (code, ins->dreg, s390_r1);
3975 case CEE_MUL_OVF_UN: {
3976 s390_lhi (code, s390_r0, 0);
3977 s390_lr (code, s390_r1, ins->sreg1);
3978 s390_mlr (code, s390_r0, ins->sreg2);
3979 s390_ltr (code, s390_r0, s390_r0);
3980 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3981 s390_lr (code, ins->dreg, s390_r1);
3985 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3986 s390_srda (code, s390_r0, 0, 32);
3987 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3988 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3989 s390_srl (code, s390_r0, 0, 31);
3990 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3991 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3992 s390_srl (code, s390_r13, 0, 31);
3993 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3994 s390_ar (code, s390_r0, s390_r13);
3995 s390_st (code, s390_r0, 0, ins->dreg, 0);
3996 s390_st (code, s390_r1, 0, ins->dreg, 4);
4000 case OP_SETREGIMM: {
4001 if (s390_is_uimm16(ins->inst_c0)) {
4002 s390_lhi (code, ins->dreg, ins->inst_c0);
4004 s390_basr (code, s390_r13, 0);
4006 s390_word (code, ins->inst_c0);
4007 s390_l (code, ins->dreg, 0, s390_r13, 4);
4012 s390_basr (code, s390_r13, 0);
4014 mono_add_patch_info (cfg, code - cfg->native_code,
4015 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
4016 s390_word (code, 0);
4017 s390_l (code,ins->dreg, 0, s390_r13, 4);
4024 if (ins->dreg != ins->sreg1) {
4025 s390_lr (code, ins->dreg, ins->sreg1);
4030 int saved = ins->sreg1;
4031 if (ins->sreg1 == s390_r2) {
4032 s390_lr (code, s390_r0, ins->sreg1);
4035 if (ins->sreg2 != s390_r2)
4036 s390_lr (code, s390_r2, ins->sreg2);
4037 if (saved != s390_r3)
4038 s390_lr (code, s390_r3, saved);
4043 if (ins->dreg != ins->sreg1) {
4044 s390_ldr (code, ins->dreg, ins->sreg1);
4048 case OP_S390_SETF4RET: {
4049 s390_ledbr (code, ins->dreg, ins->sreg1);
4053 if (s390_is_uimm16 (ins->inst_offset)) {
4054 s390_lhi (code, s390_r13, ins->inst_offset);
4056 s390_bras (code, s390_r13, 0);
4058 s390_word (code, ins->inst_offset);
4059 s390_l (code, s390_r13, 0, s390_r13, 4);
4061 s390_ear (code, s390_r1, 0);
4062 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
4065 case OP_FCONV_TO_R4: {
4067 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
4068 s390_ledbr (code, ins->dreg, ins->sreg1);
4072 int iParm, fParm, pOffset;
4073 if (cfg->method->save_lmf)
4074 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4076 if (cfg->flags & MONO_CFG_HAS_TAIL) {
4077 pOffset = S390_PARM_SAVE_OFFSET;
4078 s390_l (code, s390_r13, 0, STK_BASE, 0);
4079 for (iParm = s390_r2;
4081 iParm++, pOffset+sizeof(gint32)) {
4082 if (cfg->used_int_regs & (1 << iParm))
4083 s390_l (code, iParm, 0, s390_r13, pOffset);
4085 pOffset = S390_FLOAT_SAVE_OFFSET;
4088 fParm++, pOffset+sizeof(double))
4089 s390_ld (code, fParm, 0, s390_r13, pOffset);
4092 code = backUpStackPtr(cfg, code);
4093 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
4094 mono_add_patch_info (cfg, code - cfg->native_code,
4095 MONO_PATCH_INFO_METHOD_JUMP,
4097 s390_jcl (code, S390_CC_UN, 0);
4100 case OP_CHECK_THIS: {
4101 /* ensure ins->sreg1 is not NULL */
4102 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
4106 int offset = cfg->sig_cookie + cfg->stack_usage;
4108 if (s390_is_uimm16 (offset))
4109 s390_lhi (code, s390_r0, offset);
4111 s390_basr (code, s390_r13, 0);
4113 s390_word (code, offset);
4114 s390_l (code, s390_r0, 0, s390_r13, 0);
4116 s390_ar (code, s390_r0, cfg->frame_reg);
4117 s390_st (code, s390_r0, 0, ins->sreg1, 0);
4121 call = (MonoCallInst*)ins;
4122 if (ins->flags & MONO_INST_HAS_METHOD)
4123 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
4126 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
4128 s390_brasl (code, s390_r14, 0);
4129 if (call->signature->ret->type == MONO_TYPE_R4)
4130 s390_ldebr (code, s390_f0, s390_f0);
4137 call = (MonoCallInst*)ins;
4138 if (ins->flags & MONO_INST_HAS_METHOD)
4139 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
4141 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
4142 s390_brasl (code, s390_r14, 0);
4145 case OP_FCALL_REG: {
4146 call = (MonoCallInst*)ins;
4147 s390_lr (code, s390_r1, ins->sreg1);
4148 s390_basr (code, s390_r14, s390_r1);
4149 if (call->signature->ret->type == MONO_TYPE_R4)
4150 s390_ldebr (code, s390_f0, s390_f0);
4155 case OP_VOIDCALL_REG:
4157 s390_lr (code, s390_r1, ins->sreg1);
4158 s390_basr (code, s390_r14, s390_r1);
4161 case OP_FCALL_MEMBASE: {
4162 call = (MonoCallInst*)ins;
4163 s390_l (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4164 s390_basr (code, s390_r14, s390_r1);
4165 if (call->signature->ret->type == MONO_TYPE_R4)
4166 s390_ldebr (code, s390_f0, s390_f0);
4169 case OP_LCALL_MEMBASE:
4170 case OP_VCALL_MEMBASE:
4171 case OP_VOIDCALL_MEMBASE:
4172 case OP_CALL_MEMBASE: {
4173 s390_l (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4174 s390_basr (code, s390_r14, s390_r1);
4178 g_assert_not_reached ();
4181 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area +
4182 S390_STACK_ALIGNMENT - 1;
4183 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
4184 s390_lr (code, s390_r1, ins->sreg1);
4185 if (ins->flags & MONO_INST_INIT)
4186 s390_lr (code, s390_r0, ins->sreg1);
4187 s390_ahi (code, s390_r1, 14);
4188 s390_srl (code, s390_r1, 0, 3);
4189 s390_sll (code, s390_r1, 0, 3);
4190 s390_l (code, s390_r13, 0, STK_BASE, 0);
4191 s390_lcr (code, s390_r1, s390_r1);
4192 s390_la (code, STK_BASE, STK_BASE, s390_r1, 0);
4193 s390_st (code, s390_r13, 0, STK_BASE, 0);
4194 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
4195 s390_srl (code, ins->dreg, 0, 3);
4196 s390_sll (code, ins->dreg, 0, 3);
4197 if (ins->flags & MONO_INST_INIT) {
4198 s390_lr (code, s390_r1, s390_r0);
4199 s390_lr (code, s390_r0, ins->dreg);
4200 s390_lr (code, s390_r14, s390_r12);
4201 s390_lhi (code, s390_r13, 0);
4202 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4204 s390_lr (code, s390_r12, s390_r14);
4209 s390_br (code, s390_r14);
4213 s390_lr (code, s390_r2, ins->sreg1);
4214 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4215 (gpointer)"mono_arch_throw_exception");
4216 s390_brasl (code, s390_r14, 0);
4220 s390_lr (code, s390_r2, ins->sreg1);
4221 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4222 (gpointer)"mono_arch_rethrow_exception");
4223 s390_brasl (code, s390_r14, 0);
4226 case OP_START_HANDLER: {
4227 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4228 s390_st (code, s390_r14, 0,
4229 ins->inst_left->inst_basereg,
4230 ins->inst_left->inst_offset);
4232 s390_basr (code, s390_r13, 0);
4234 s390_word (code, ins->inst_left->inst_offset);
4235 s390_l (code, s390_r13, 0, s390_r13, 4);
4236 s390_st (code, s390_r14, s390_r13,
4237 ins->inst_left->inst_basereg, 0);
4241 case OP_ENDFILTER: {
4242 if (ins->sreg1 != s390_r2)
4243 s390_lr (code, s390_r2, ins->sreg1);
4244 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4245 s390_l (code, s390_r14, 0, ins->inst_left->inst_basereg,
4246 ins->inst_left->inst_offset);
4248 s390_basr (code, s390_r13, 0);
4250 s390_word (code, ins->inst_left->inst_offset);
4251 s390_l (code, s390_r13, 0, s390_r13, 4);
4252 s390_l (code, s390_r14, s390_r13,
4253 ins->inst_left->inst_basereg, 0);
4255 s390_br (code, s390_r14);
4258 case CEE_ENDFINALLY: {
4259 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4260 s390_l (code, s390_r14, 0, ins->inst_left->inst_basereg,
4261 ins->inst_left->inst_offset);
4263 s390_basr (code, s390_r13, 0);
4265 s390_word (code, ins->inst_left->inst_offset);
4266 s390_l (code, s390_r13, 0, s390_r13, 4);
4267 s390_l (code, s390_r14, s390_r13,
4268 ins->inst_left->inst_basereg, 0);
4270 s390_br (code, s390_r14);
4273 case OP_CALL_HANDLER: {
4274 mono_add_patch_info (cfg, code-cfg->native_code,
4275 MONO_PATCH_INFO_BB, ins->inst_target_bb);
4276 s390_brasl (code, s390_r14, 0);
4280 ins->inst_c0 = code - cfg->native_code;
4284 EMIT_UNCOND_BRANCH(ins);
4287 s390_br (code, ins->sreg1);
4291 s390_lhi (code, ins->dreg, 1);
4293 s390_lhi (code, ins->dreg, 0);
4297 s390_lhi (code, ins->dreg, 1);
4299 s390_lhi (code, ins->dreg, 0);
4303 s390_lhi (code, ins->dreg, 1);
4305 s390_lhi (code, ins->dreg, 0);
4309 s390_lhi (code, ins->dreg, 1);
4311 s390_lhi (code, ins->dreg, 0);
4315 s390_lhi (code, ins->dreg, 1);
4317 s390_lhi (code, ins->dreg, 0);
4320 case OP_COND_EXC_EQ:
4321 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4323 case OP_COND_EXC_NE_UN:
4324 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4326 case OP_COND_EXC_LT:
4327 case OP_COND_EXC_LT_UN:
4328 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4330 case OP_COND_EXC_GT:
4331 case OP_COND_EXC_GT_UN:
4332 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4334 case OP_COND_EXC_GE:
4335 case OP_COND_EXC_GE_UN:
4336 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4338 case OP_COND_EXC_LE:
4339 case OP_COND_EXC_LE_UN:
4340 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4342 case OP_COND_EXC_OV:
4343 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4345 case OP_COND_EXC_NO:
4346 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4349 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4351 case OP_COND_EXC_NC:
4352 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4355 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4358 EMIT_COND_BRANCH (ins, S390_CC_NE);
4362 EMIT_COND_BRANCH (ins, S390_CC_LT);
4366 EMIT_COND_BRANCH (ins, S390_CC_GT);
4370 EMIT_COND_BRANCH (ins, S390_CC_GE);
4374 EMIT_COND_BRANCH (ins, S390_CC_LE);
4377 /* floating point opcodes */
4379 if (*((float *) ins->inst_p0) == 0) {
4380 s390_lzdr (code, ins->dreg);
4382 s390_basr (code, s390_r13, 0);
4384 s390_word (code, ins->inst_p0);
4385 s390_l (code, s390_r13, 0, s390_r13, 4);
4386 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4391 if (*((float *) ins->inst_p0) == 0) {
4392 s390_lzdr (code, ins->dreg);
4394 s390_basr (code, s390_r13, 0);
4396 s390_word (code, ins->inst_p0);
4397 s390_l (code, s390_r13, 0, s390_r13, 4);
4398 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4402 case OP_STORER8_MEMBASE_REG: {
4403 if (s390_is_uimm12(ins->inst_offset)) {
4404 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
4406 s390_basr (code, s390_r13, 0);
4408 s390_word (code, ins->inst_offset);
4409 s390_l (code, s390_r13, 0, s390_r13, 4);
4410 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
4414 case OP_LOADR8_MEMBASE: {
4415 if (s390_is_uimm12(ins->inst_offset)) {
4416 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4418 s390_basr (code, s390_r13, 0);
4420 s390_word (code, ins->inst_offset);
4421 s390_l (code, s390_r13, 0, s390_r13, 4);
4422 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4426 case OP_STORER4_MEMBASE_REG: {
4427 if (s390_is_uimm12(ins->inst_offset)) {
4428 s390_ledbr(code, s390_f15, ins->sreg1);
4429 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
4431 s390_basr (code, s390_r13, 0);
4433 s390_word (code, ins->inst_offset);
4434 s390_l (code, s390_r13, 0, s390_r13, 4);
4435 s390_ledbr(code, s390_f15, ins->sreg1);
4436 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
4440 case OP_LOADR4_MEMBASE: {
4441 if (s390_is_uimm12(ins->inst_offset)) {
4442 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4444 s390_basr (code, s390_r13, 0);
4446 s390_word (code, ins->inst_offset);
4447 s390_l (code, s390_r13, 0, s390_r13, 4);
4448 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4452 case CEE_CONV_R_UN: {
4453 s390_cdfbr (code, ins->dreg, ins->sreg1);
4454 s390_ltr (code, ins->sreg1, ins->sreg1);
4455 s390_jnl (code, 12);
4456 s390_basr (code, s390_r13, 0);
4458 s390_word (code, 0x41f00000);
4459 s390_word (code, 0);
4460 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4464 s390_cdfbr (code, ins->dreg, ins->sreg1);
4468 s390_cdfbr (code, ins->dreg, ins->sreg1);
4471 case OP_FCONV_TO_I1:
4472 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4474 case OP_FCONV_TO_U1:
4475 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4477 case OP_FCONV_TO_I2:
4478 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4480 case OP_FCONV_TO_U2:
4481 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4483 case OP_FCONV_TO_I4:
4485 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4487 case OP_FCONV_TO_U4:
4489 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4491 case OP_FCONV_TO_I8:
4492 case OP_FCONV_TO_U8:
4493 g_assert_not_reached ();
4494 /* Implemented as helper calls */
4496 case OP_LCONV_TO_R_UN:
4497 g_assert_not_reached ();
4498 /* Implemented as helper calls */
4500 case OP_LCONV_TO_OVF_I: {
4501 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4503 s390_ltr (code, ins->sreg1, ins->sreg1);
4504 s390_jnl (code, 0); CODEPTR(code, o[0]);
4505 s390_ltr (code, ins->sreg2, ins->sreg2);
4506 s390_jnl (code, 0); CODEPTR(code, o[1]);
4507 s390_lhi (code, s390_r13, -1);
4508 s390_cr (code, ins->sreg2, s390_r13);
4509 s390_jnz (code, 0); CODEPTR(code, o[2]);
4510 if (ins->dreg != ins->sreg1)
4511 s390_lr (code, ins->dreg, ins->sreg1);
4512 s390_j (code, 0); CODEPTR(code, o[3]);
4513 PTRSLOT(code, o[0]);
4514 s390_ltr (code, ins->sreg2, ins->sreg2);
4515 s390_jz (code, 0); CODEPTR(code, o[4]);
4516 PTRSLOT(code, o[1]);
4517 PTRSLOT(code, o[2]);
4518 mono_add_patch_info (cfg, code - cfg->native_code,
4519 MONO_PATCH_INFO_EXC, "OverflowException");
4520 s390_brasl (code, s390_r14, 0);
4521 PTRSLOT(code, o[3]);
4522 PTRSLOT(code, o[4]);
4526 s390_sqdbr (code, ins->dreg, ins->sreg1);
4530 if (ins->dreg == ins->sreg1)
4531 s390_adbr (code, ins->dreg, ins->sreg2);
4533 if (ins->dreg == ins->sreg2)
4534 s390_adbr (code, ins->dreg, ins->sreg1);
4536 s390_ldr (code, ins->dreg, ins->sreg1);
4537 s390_adbr (code, ins->dreg, ins->sreg2);
4543 CHECK_SRCDST_NCOM_F;
4544 s390_sdbr (code, ins->dreg, src2);
4548 if (ins->dreg == ins->sreg1)
4549 s390_mdbr (code, ins->dreg, ins->sreg2);
4551 if (ins->dreg == ins->sreg2)
4552 s390_mdbr (code, ins->dreg, ins->sreg1);
4554 s390_ldr (code, ins->dreg, ins->sreg1);
4555 s390_mdbr (code, ins->dreg, ins->sreg2);
4561 CHECK_SRCDST_NCOM_F;
4562 s390_ddbr (code, ins->dreg, src2);
4566 s390_lcdbr (code, ins->dreg, ins->sreg1);
4570 CHECK_SRCDST_NCOM_F;
4571 s390_didbr (code, ins->dreg, ins->sreg2, 5, s390_f15);
4575 s390_cdbr (code, ins->sreg1, ins->sreg2);
4579 s390_cdbr (code, ins->sreg1, ins->sreg2);
4580 s390_lhi (code, ins->dreg, 1);
4582 s390_lhi (code, ins->dreg, 0);
4586 s390_cdbr (code, ins->sreg1, ins->sreg2);
4587 s390_lhi (code, ins->dreg, 1);
4589 s390_lhi (code, ins->dreg, 0);
4593 s390_cdbr (code, ins->sreg1, ins->sreg2);
4594 s390_lhi (code, ins->dreg, 1);
4596 s390_lhi (code, ins->dreg, 0);
4600 s390_cdbr (code, ins->sreg1, ins->sreg2);
4601 s390_lhi (code, ins->dreg, 1);
4603 s390_lhi (code, ins->dreg, 0);
4607 s390_cdbr (code, ins->sreg1, ins->sreg2);
4608 s390_lhi (code, ins->dreg, 1);
4610 s390_lhi (code, ins->dreg, 0);
4614 EMIT_COND_BRANCH (ins, S390_CC_EQ|S390_CC_OV);
4617 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4620 EMIT_COND_BRANCH (ins, S390_CC_LT);
4623 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4626 EMIT_COND_BRANCH (ins, S390_CC_GT);
4629 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4632 EMIT_COND_BRANCH (ins, S390_CC_GE);
4635 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4638 EMIT_COND_BRANCH (ins, S390_CC_LE);
4641 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4643 case CEE_CKFINITE: {
4645 s390_lhi (code, s390_r13, 0x7f);
4646 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4647 s390_jz (code, 0); CODEPTR(code, o);
4648 mono_add_patch_info (cfg, code - cfg->native_code,
4649 MONO_PATCH_INFO_EXC, "ArithmeticException");
4650 s390_brasl (code, s390_r14,0);
4654 case OP_S390_MOVE: {
4655 if (ins->unused > 0) {
4656 if (ins->unused <= 256) {
4657 s390_mvc (code, ins->unused, ins->dreg,
4658 ins->inst_offset, ins->sreg1, ins->inst_imm);
4660 s390_lr (code, s390_r0, ins->dreg);
4661 if (s390_is_uimm16 (ins->inst_offset)) {
4662 s390_ahi (code, s390_r0, ins->inst_offset);
4664 s390_basr (code, s390_r13, 0);
4666 s390_word (code, ins->inst_offset);
4667 s390_a (code, s390_r0, 0, s390_r13, 4);
4669 s390_lr (code, s390_r14, s390_r12);
4670 s390_lr (code, s390_r12, ins->sreg1);
4671 if (s390_is_uimm16 (ins->inst_imm)) {
4672 s390_ahi (code, s390_r12, ins->inst_imm);
4674 s390_basr (code, s390_r13, 0);
4676 s390_word (code, ins->inst_imm);
4677 s390_a (code, s390_r12, 0, s390_r13, 4);
4679 s390_lr (code, s390_r1, ins->sreg1);
4680 s390_lr (code, s390_r13, s390_r1);
4681 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4683 s390_lr (code, s390_r12, s390_r14);
4688 case OP_ATOMIC_ADD_I4: {
4689 s390_lr (code, s390_r1, ins->sreg2);
4690 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4691 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4692 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4693 s390_jnz (code, -7);
4694 s390_lr (code, ins->dreg, s390_r1);
4697 case OP_ATOMIC_ADD_NEW_I4: {
4698 s390_lr (code, s390_r1, ins->sreg2);
4699 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4700 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4701 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4702 s390_jnz (code, -7);
4703 s390_lr (code, ins->dreg, s390_r1);
4706 case OP_ATOMIC_EXCHANGE_I4: {
4707 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4708 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4709 s390_jnz (code, -4);
4710 s390_lr (code, ins->dreg, s390_r0);
4714 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4715 g_assert_not_reached ();
4718 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4719 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4720 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4721 g_assert_not_reached ();
4727 last_offset = offset;
4732 cfg->code_len = code - cfg->native_code;
4735 /*========================= End of Function ========================*/
4737 /*------------------------------------------------------------------*/
4739 /* Name - mono_arch_register_lowlevel_calls */
4741 /* Function - Register routines to help with --trace operation. */
4743 /*------------------------------------------------------------------*/
4746 mono_arch_register_lowlevel_calls (void)
4748 mono_register_jit_icall (enter_method, "mono_enter_method", NULL, TRUE);
4749 mono_register_jit_icall (leave_method, "mono_leave_method", NULL, TRUE);
4752 /*========================= End of Function ========================*/
4754 /*------------------------------------------------------------------*/
4756 /* Name - mono_arch_patch_code */
4758 /* Function - Process the patch data created during the */
4759 /* instruction build process. This resolves jumps, */
4760 /* calls, variables etc. */
4762 /*------------------------------------------------------------------*/
4765 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4766 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4768 MonoJumpInfo *patch_info;
4770 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4771 unsigned char *ip = patch_info->ip.i + code;
4772 gconstpointer target = NULL;
4774 target = mono_resolve_patch_target (method, domain, code,
4775 patch_info, run_cctors);
4777 switch (patch_info->type) {
4778 case MONO_PATCH_INFO_IP:
4779 case MONO_PATCH_INFO_EXC_NAME:
4780 case MONO_PATCH_INFO_LDSTR:
4781 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4782 case MONO_PATCH_INFO_LDTOKEN:
4783 case MONO_PATCH_INFO_EXC:
4785 case MONO_PATCH_INFO_SWITCH:
4786 /*----------------------------------*/
4787 /* ip points at the basr r13,0/j +4 */
4788 /* instruction the vtable value */
4789 /* follows this (i.e. ip+6) */
4790 /*----------------------------------*/
4791 *((gconstpointer *)(ip+6)) = target;
4794 case MONO_PATCH_INFO_METHODCONST:
4795 case MONO_PATCH_INFO_CLASS:
4796 case MONO_PATCH_INFO_IMAGE:
4797 case MONO_PATCH_INFO_FIELD:
4798 case MONO_PATCH_INFO_IID:
4799 target = S390_RELATIVE(target, ip);
4801 case MONO_PATCH_INFO_R4:
4802 case MONO_PATCH_INFO_R8:
4803 case MONO_PATCH_INFO_METHOD_REL:
4804 g_assert_not_reached ();
4807 target = S390_RELATIVE(target, ip);
4810 s390_patch (ip, target);
4814 /*========================= End of Function ========================*/
4816 /*------------------------------------------------------------------*/
4818 /* Name - mono_arch_emit_prolog */
4820 /* Function - Create the instruction sequence for a function */
4823 /*------------------------------------------------------------------*/
4826 mono_arch_emit_prolog (MonoCompile *cfg)
4828 MonoMethod *method = cfg->method;
4830 MonoMethodSignature *sig;
4832 int alloc_size, pos, max_offset, i;
4839 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4842 cfg->code_size = 512;
4843 cfg->native_code = code = g_malloc (cfg->code_size);
4845 if (cfg->flags & MONO_CFG_HAS_TAIL) {
4846 s390_stm (code, s390_r2, s390_r14, STK_BASE, S390_PARM_SAVE_OFFSET);
4847 for (pos = 0; pos < 4; pos++)
4848 s390_std (code, pos, 0, STK_BASE,
4849 S390_FLOAT_SAVE_OFFSET+pos*sizeof(double));
4851 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4854 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4855 cfg->used_int_regs |= 1 << 11;
4858 alloc_size = cfg->stack_offset;
4860 cfg->stack_usage = alloc_size;
4861 s390_lr (code, s390_r11, STK_BASE);
4862 if (s390_is_uimm16 (alloc_size)) {
4863 s390_ahi (code, STK_BASE, -alloc_size);
4865 int stackSize = alloc_size;
4866 while (stackSize > 32767) {
4867 s390_ahi (code, STK_BASE, -32767);
4870 s390_ahi (code, STK_BASE, -stackSize);
4872 s390_st (code, s390_r11, 0, STK_BASE, 0);
4874 if (cfg->frame_reg != STK_BASE)
4875 s390_lr (code, s390_r11, STK_BASE);
4877 /* compute max_offset in order to use short forward jumps
4878 * we always do it on s390 because the immediate displacement
4879 * for jumps is too small
4882 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4883 MonoInst *ins = bb->code;
4884 bb->max_offset = max_offset;
4886 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4890 max_offset += ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
4895 /* load arguments allocated to register from the stack */
4896 sig = mono_method_signature (method);
4899 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4901 if (cinfo->struct_ret) {
4902 ArgInfo *ainfo = &cinfo->ret;
4904 inst->unused = ainfo->vtsize;
4905 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4908 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4909 ArgInfo *ainfo = cinfo->args + i;
4910 inst = cfg->varinfo [pos];
4912 if (inst->opcode == OP_REGVAR) {
4913 if (ainfo->regtype == RegTypeGeneral)
4914 s390_lr (code, inst->dreg, ainfo->reg);
4915 else if (ainfo->regtype == RegTypeFP) {
4916 if (inst->dreg != ainfo->reg) {
4917 if (ainfo->size == 4) {
4918 s390_ledbr (code, inst->dreg, ainfo->reg);
4920 s390_ldr (code, inst->dreg, ainfo->reg);
4924 else if (ainfo->regtype == RegTypeBase) {
4925 s390_lr (code, s390_r13, STK_BASE);
4926 s390_ahi (code, s390_r13, alloc_size);
4927 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4929 g_assert_not_reached ();
4931 if (cfg->verbose_level > 2)
4932 g_print ("Argument %d assigned to register %s\n",
4933 pos, mono_arch_regname (inst->dreg));
4935 if (ainfo->regtype == RegTypeGeneral) {
4936 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4937 g_assert_not_reached();
4938 switch (ainfo->size) {
4940 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4943 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4946 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4947 inst->inst_basereg, inst->inst_offset);
4950 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4952 } else if (ainfo->regtype == RegTypeBase) {
4953 } else if (ainfo->regtype == RegTypeFP) {
4954 if (ainfo->size == 8)
4955 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4956 else if (ainfo->size == 4)
4957 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4959 g_assert_not_reached ();
4960 } else if (ainfo->regtype == RegTypeStructByVal) {
4961 int doffset = inst->inst_offset;
4963 if (ainfo->reg != STK_BASE)
4967 s390_lr (code, s390_r13, STK_BASE);
4968 s390_ahi (code, s390_r13, alloc_size);
4970 switch (ainfo->size) {
4972 if (ainfo->reg == STK_BASE)
4973 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4974 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4977 if (ainfo->reg == STK_BASE)
4978 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4979 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4982 if (ainfo->reg == STK_BASE)
4983 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4984 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4987 if (ainfo->reg == STK_BASE)
4988 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4989 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4992 } else if (ainfo->regtype == RegTypeStructByAddr) {
4993 if (ainfo->reg == STK_BASE) {
4994 s390_lr (code, s390_r13, ainfo->reg);
4995 s390_ahi (code, s390_r13, alloc_size);
4996 s390_l (code, s390_r13, 0, s390_r13,
4997 ainfo->offparm + S390_MINIMAL_STACK_SIZE);
4998 code = emit_memcpy (code, abs(ainfo->vtsize),
5000 inst->inst_offset, s390_r13, 0);
5002 code = emit_memcpy (code, abs(ainfo->vtsize),
5008 g_assert_not_reached ();
5013 if (method->save_lmf) {
5014 /*---------------------------------------------------------------*/
5015 /* Preserve the parameter registers while we fix up the lmf */
5016 /*---------------------------------------------------------------*/
5017 s390_lr (code, s390_r7, s390_r2);
5018 s390_lr (code, s390_r8, s390_r3);
5019 s390_lr (code, s390_r9, s390_r4);
5020 s390_lr (code, s390_r10, s390_r5);
5022 mono_add_patch_info (cfg, code - cfg->native_code,
5023 MONO_PATCH_INFO_INTERNAL_METHOD,
5024 (gpointer)"mono_get_lmf_addr");
5025 /*---------------------------------------------------------------*/
5026 /* On return from this call r2 have the address of the &lmf */
5027 /*---------------------------------------------------------------*/
5028 s390_brasl (code, s390_r14, 0);
5030 /*---------------------------------------------------------------*/
5031 /* we build the MonoLMF structure on the stack - see mini-s390.h */
5032 /*---------------------------------------------------------------*/
5033 lmfOffset = alloc_size - sizeof(MonoLMF);
5035 s390_lr (code, s390_r13, cfg->frame_reg);
5036 s390_ahi (code, s390_r13, lmfOffset);
5038 /*---------------------------------------------------------------*/
5039 /* Set lmf.lmf_addr = jit_tls->lmf */
5040 /*---------------------------------------------------------------*/
5041 s390_st (code, s390_r2, 0, s390_r13,
5042 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
5044 /*---------------------------------------------------------------*/
5045 /* Get current lmf */
5046 /*---------------------------------------------------------------*/
5047 s390_l (code, s390_r0, 0, s390_r2, 0);
5049 /*---------------------------------------------------------------*/
5050 /* Set our lmf as the current lmf */
5051 /*---------------------------------------------------------------*/
5052 s390_st (code, s390_r13, 0, s390_r2, 0);
5054 /*---------------------------------------------------------------*/
5055 /* Have our lmf.previous_lmf point to the last lmf */
5056 /*---------------------------------------------------------------*/
5057 s390_st (code, s390_r0, 0, s390_r13,
5058 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
5060 /*---------------------------------------------------------------*/
5061 /* save method info */
5062 /*---------------------------------------------------------------*/
5063 s390_basr (code, s390_r1, 0);
5065 s390_word (code, method);
5066 s390_l (code, s390_r1, 0, s390_r1, 4);
5067 s390_st (code, s390_r1, 0, s390_r13,
5068 G_STRUCT_OFFSET(MonoLMF, method));
5070 /*---------------------------------------------------------------*/
5071 /* save the current IP */
5072 /*---------------------------------------------------------------*/
5073 s390_lr (code, s390_r1, cfg->frame_reg);
5074 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
5075 s390_basr (code, s390_r1, 0);
5076 s390_la (code, s390_r1, 0, s390_r1, 0);
5077 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
5079 /*---------------------------------------------------------------*/
5080 /* Save general and floating point registers */
5081 /*---------------------------------------------------------------*/
5082 s390_stm (code, s390_r2, s390_r12, s390_r13,
5083 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
5084 for (i = 0; i < 16; i++) {
5085 s390_std (code, i, 0, s390_r13,
5086 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
5089 /*---------------------------------------------------------------*/
5090 /* Restore the parameter registers now that we've set up the lmf */
5091 /*---------------------------------------------------------------*/
5092 s390_lr (code, s390_r2, s390_r7);
5093 s390_lr (code, s390_r3, s390_r8);
5094 s390_lr (code, s390_r4, s390_r9);
5095 s390_lr (code, s390_r5, s390_r10);
5099 code = mono_arch_instrument_prolog (cfg, enter_method, code, TRUE);
5101 cfg->code_len = code - cfg->native_code;
5107 /*========================= End of Function ========================*/
5109 /*------------------------------------------------------------------*/
5111 /* Name - mono_arch_emit_epilog */
5113 /* Function - Emit the instructions for a function epilog. */
5115 /*------------------------------------------------------------------*/
5118 mono_arch_emit_epilog (MonoCompile *cfg)
5120 MonoJumpInfo *patch_info;
5121 MonoMethod *method = cfg->method;
5124 int max_epilog_size = 96;
5126 if (cfg->method->save_lmf)
5127 max_epilog_size += 128;
5129 if (mono_jit_trace_calls != NULL)
5130 max_epilog_size += 128;
5132 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5133 max_epilog_size += 128;
5135 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
5136 cfg->code_size *= 2;
5137 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5138 mono_jit_stats.code_reallocs++;
5141 code = cfg->native_code + cfg->code_len;
5143 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5144 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5148 if (method->save_lmf)
5149 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
5151 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
5152 s390_l (code, STK_BASE, 0, STK_BASE, 0);
5154 code = backUpStackPtr(cfg, code);
5156 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5157 s390_br (code, s390_r14);
5159 cfg->code_len = code - cfg->native_code;
5161 g_assert (cfg->code_len < cfg->code_size);
5165 /*========================= End of Function ========================*/
5167 /*------------------------------------------------------------------*/
5169 /* Name - mono_arch_emit_exceptions */
5171 /* Function - Emit the blocks to handle exception conditions. */
5173 /*------------------------------------------------------------------*/
5176 mono_arch_emit_exceptions (MonoCompile *cfg)
5178 MonoJumpInfo *patch_info;
5184 MonoClass *exc_classes [MAX_EXC];
5185 guint8 *exc_throw_start [MAX_EXC],
5186 *exc_throw_end [MAX_EXC];
5188 for (patch_info = cfg->patch_info;
5190 patch_info = patch_info->next) {
5191 if (patch_info->type == MONO_PATCH_INFO_EXC)
5195 code_size = exc_count * 26;
5197 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
5198 cfg->code_size *= 2;
5199 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
5200 mono_jit_stats.code_reallocs++;
5203 code = cfg->native_code + cfg->code_len;
5205 /*---------------------------------------------------------------------*/
5206 /* Add code to raise exceptions */
5207 /*---------------------------------------------------------------------*/
5208 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5209 switch (patch_info->type) {
5210 case MONO_PATCH_INFO_EXC: {
5211 guint8 *ip = patch_info->ip.i + cfg->native_code;
5212 MonoClass *exc_class;
5215 /*-----------------------------------------------------*/
5216 /* Patch the branch in epilog to come here */
5217 /*-----------------------------------------------------*/
5218 s390_patch (ip + 2, S390_RELATIVE(code,ip));
5220 exc_class = mono_class_from_name (mono_defaults.corlib,
5222 patch_info->data.name);
5223 g_assert (exc_class);
5224 throw_ip = patch_info->ip.i;
5226 for (iExc = 0; iExc < nThrows; ++iExc)
5227 if (exc_classes [iExc] == exc_class)
5230 if (iExc < nThrows) {
5231 s390_jcl (code, S390_CC_UN, exc_throw_start [iExc]);
5232 patch_info->type = MONO_PATCH_INFO_NONE;
5235 if (nThrows < MAX_EXC) {
5236 exc_classes [nThrows] = exc_class;
5237 exc_throw_start [nThrows] = code;
5240 /*---------------------------------------------*/
5241 /* Patch the parameter passed to the handler */
5242 /*---------------------------------------------*/
5243 s390_basr (code, s390_r13, 0);
5245 s390_word (code, patch_info->data.target);
5246 /*---------------------------------------------*/
5247 /* Load return address & parameter register */
5248 /*---------------------------------------------*/
5249 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
5250 cfg->native_code + 8), code));
5251 s390_l (code, s390_r2, 0, s390_r13, 4);
5252 /*---------------------------------------------*/
5253 /* Reuse the current patch to set the jump */
5254 /*---------------------------------------------*/
5255 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5256 patch_info->data.name = "mono_arch_throw_exception_by_name";
5257 patch_info->ip.i = code - cfg->native_code;
5258 s390_jcl (code, S390_CC_UN, 0);
5268 cfg->code_len = code - cfg->native_code;
5270 g_assert (cfg->code_len < cfg->code_size);
5274 /*========================= End of Function ========================*/
5276 /*------------------------------------------------------------------*/
5278 /* Name - mono_arch_setup_jit_tls_data */
5280 /* Function - Setup the JIT's Thread Level Specific Data. */
5282 /*------------------------------------------------------------------*/
5285 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
5287 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5288 pthread_t self = pthread_self();
5289 pthread_attr_t attr;
5290 void *stAddr = NULL;
5292 struct sigaltstack sa;
5295 if (!tls_offset_inited) {
5296 tls_offset_inited = TRUE;
5300 __asm__ ("\tear\t%r1,0\n"
5307 : "=r" (appdomain_tls_offset),
5308 "=r" (thread_tls_offset),
5309 "=r" (lmf_tls_offset)
5310 : "r" (&tls_appdomain),
5311 "r" (&tls_current_object),
5312 "r" (&mono_lmf_addr)
5318 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5320 /*----------------------------------------------------------*/
5321 /* Determine stack boundaries */
5322 /*----------------------------------------------------------*/
5323 if (!mono_running_on_valgrind ()) {
5324 #ifdef HAVE_PTHREAD_GETATTR_NP
5325 pthread_getattr_np( self, &attr );
5326 #elif HAVE_PTHREAD_ATTR_GET_NP
5327 pthread_attr_get_np( self, &attr );
5329 pthread_attr_getstack( &attr, &stAddr, &stSize );
5333 /*----------------------------------------------------------*/
5334 /* Setup an alternate signal stack */
5335 /*----------------------------------------------------------*/
5336 tls->stack_size = stSize;
5337 tls->signal_stack = g_malloc (SIGNAL_STACK_SIZE);
5338 tls->signal_stack_size = SIGNAL_STACK_SIZE;
5340 sa.ss_sp = tls->signal_stack;
5341 sa.ss_size = SIGNAL_STACK_SIZE;
5342 sa.ss_flags = SS_ONSTACK;
5343 sigaltstack (&sa, NULL);
5348 /*========================= End of Function ========================*/
5350 /*------------------------------------------------------------------*/
5352 /* Name - mono_arch_free_jit_tls_data */
5354 /* Function - Free tls data. */
5356 /*------------------------------------------------------------------*/
5359 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5361 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5362 struct sigaltstack sa;
5364 sa.ss_sp = tls->signal_stack;
5365 sa.ss_size = SIGNAL_STACK_SIZE;
5366 sa.ss_flags = SS_DISABLE;
5367 sigaltstack (&sa, NULL);
5369 if (tls->signal_stack)
5370 g_free (tls->signal_stack);
5375 /*========================= End of Function ========================*/
5377 /*------------------------------------------------------------------*/
5379 /* Name - mono_arch_emit_this_vret_args */
5383 /*------------------------------------------------------------------*/
5386 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
5388 int this_dreg = s390_r2;
5391 this_dreg = s390_r3;
5393 /* add the this argument */
5394 if (this_reg != -1) {
5396 MONO_INST_NEW (cfg, this, OP_SETREG);
5397 this->type = this_type;
5398 this->sreg1 = this_reg;
5399 this->dreg = this_dreg;
5400 mono_bblock_add_inst (cfg->cbb, this);
5405 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
5406 vtarg->type = STACK_MP;
5407 vtarg->sreg1 = vt_reg;
5408 vtarg->dreg = s390_r2;
5409 mono_bblock_add_inst (cfg->cbb, vtarg);
5413 /*========================= End of Function ========================*/
5415 /*------------------------------------------------------------------*/
5417 /* Name - mono_arch_get_inst_for_method */
5419 /* Function - Check for opcodes we can handle directly in */
5422 /*------------------------------------------------------------------*/
5425 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod,
5426 MonoMethodSignature *fsig, MonoInst **args)
5428 MonoInst *ins = NULL;
5430 if (cmethod->klass == mono_defaults.math_class) {
5431 if (strcmp (cmethod->name, "Sqrt") == 0) {
5432 MONO_INST_NEW (cfg, ins, OP_SQRT);
5433 ins->inst_i0 = args [0];
5435 } else if(cmethod->klass->image == mono_defaults.corlib &&
5436 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
5437 (strcmp (cmethod->klass->name, "Interlocked") == 0)) {
5439 if (strcmp (cmethod->name, "Increment") == 0 &&
5440 fsig->params [0]->type == MONO_TYPE_I4) {
5441 MonoInst *ins_iconst;
5443 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_NEW_I4);
5444 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5445 ins_iconst->inst_c0 = 1;
5447 ins->inst_i0 = args [0];
5448 ins->inst_i1 = ins_iconst;
5449 } else if (strcmp (cmethod->name, "Decrement") == 0 &&
5450 fsig->params [0]->type == MONO_TYPE_I4) {
5451 MonoInst *ins_iconst;
5453 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_NEW_I4);
5454 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5455 ins_iconst->inst_c0 = -1;
5457 ins->inst_i0 = args [0];
5458 ins->inst_i1 = ins_iconst;
5459 } else if (strcmp (cmethod->name, "Exchange") == 0 &&
5460 fsig->params [0]->type == MONO_TYPE_I4) {
5461 MONO_INST_NEW (cfg, ins, OP_ATOMIC_EXCHANGE_I4);
5463 ins->inst_i0 = args [0];
5464 ins->inst_i1 = args [1];
5465 } else if (strcmp (cmethod->name, "Add") == 0 &&
5466 fsig->params [0]->type == MONO_TYPE_I4) {
5467 MONO_INST_NEW (cfg, ins, OP_ATOMIC_ADD_I4);
5469 ins->inst_i0 = args [0];
5470 ins->inst_i1 = args [1];
5476 /*========================= End of Function ========================*/
5478 /*------------------------------------------------------------------*/
5480 /* Name - mono_arch_print_tree */
5482 /* Function - Print platform-specific opcode details. */
5484 /* Returns - 1 - opcode details have been printed */
5485 /* 0 - opcode details have not been printed */
5487 /*------------------------------------------------------------------*/
5490 mono_arch_print_tree (MonoInst *tree, int arity)
5494 switch (tree->opcode) {
5495 case OP_S390_LOADARG:
5496 case OP_S390_ARGPTR:
5497 printf ("[0x%x(%s)]", tree->inst_offset,
5498 mono_arch_regname (tree->inst_basereg));
5501 case OP_S390_STKARG:
5502 printf ("[0x%x(previous_frame)]",
5507 printf ("[0x%x(%d,%s),0x%x(%s)]",
5508 tree->inst_offset, tree->unused,
5509 tree->dreg, tree->inst_imm,
5513 case OP_S390_SETF4RET:
5514 printf ("[f%d,f%d]",
5515 mono_arch_regname (tree->dreg),
5516 mono_arch_regname (tree->sreg1));
5520 printf ("[0x%x(0x%x,%s)]", tree->inst_offset,
5522 mono_arch_regname (tree->sreg1));
5530 /*========================= End of Function ========================*/
5532 /*------------------------------------------------------------------*/
5534 /* Name - mono_arch_regalloc_cost */
5536 /* Function - Determine the cost, in the number of memory */
5537 /* references, of the action of allocating the var- */
5538 /* iable VMV into a register during global register */
5541 /* Returns - Cost */
5543 /*------------------------------------------------------------------*/
5546 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5552 /*========================= End of Function ========================*/
5554 /*------------------------------------------------------------------*/
5556 /* Name - mono_arch_get_domain_intrinsic */
5562 /*------------------------------------------------------------------*/
5565 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5569 if (appdomain_tls_offset == -1)
5572 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5573 ins->inst_offset = appdomain_tls_offset;
5577 /*========================= End of Function ========================*/
5579 /*------------------------------------------------------------------*/
5581 /* Name - mono_arch_get_thread_intrinsic */
5587 /*------------------------------------------------------------------*/
5590 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5594 if (thread_tls_offset == -1)
5597 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5598 ins->inst_offset = thread_tls_offset;
5602 /*========================= End of Function ========================*/
5604 /*------------------------------------------------------------------*/
5606 /* Name - mono_arch_flush_register_windows */
5612 /*------------------------------------------------------------------*/
5615 mono_arch_flush_register_windows (void)
5619 /*========================= End of Function ========================*/