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 EMIT_COND_BRANCH(ins,cond) \
23 if (ins->inst_true_bb->native_offset) { \
25 displace = ((cfg->native_code + \
26 ins->inst_true_bb->native_offset) - code) / 2; \
27 if (s390_is_imm16(displace)) { \
28 s390_brc (code, cond, displace); \
30 s390_jcl (code, cond, displace); \
33 mono_add_patch_info (cfg, code - cfg->native_code, \
34 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
35 s390_jcl (code, cond, 0); \
39 #define EMIT_UNCOND_BRANCH(ins) \
41 if (ins->inst_target_bb->native_offset) { \
43 displace = ((cfg->native_code + \
44 ins->inst_target_bb->native_offset) - code) / 2; \
45 if (s390_is_imm16(displace)) { \
46 s390_brc (code, S390_CC_UN, displace); \
48 s390_jcl (code, S390_CC_UN, displace); \
51 mono_add_patch_info (cfg, code - cfg->native_code, \
52 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
53 s390_jcl (code, S390_CC_UN, 0); \
57 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
59 mono_add_patch_info (cfg, code - cfg->native_code, \
60 MONO_PATCH_INFO_EXC, exc_name); \
61 s390_jcl (code, cond, 0); \
64 #define CHECK_SRCDST_COM \
65 if (ins->dreg == ins->sreg2) { \
69 if (ins->dreg != ins->sreg1) { \
70 s390_lr (code, ins->dreg, ins->sreg1); \
74 #define CHECK_SRCDST_NCOM \
75 if (ins->dreg == ins->sreg2) { \
77 s390_lr (code, s390_r13, ins->sreg2); \
81 if (ins->dreg != ins->sreg1) { \
82 s390_lr (code, ins->dreg, ins->sreg1); \
85 #define CHECK_SRCDST_COM_F \
86 if (ins->dreg == ins->sreg2) { \
90 if (ins->dreg != ins->sreg1) { \
91 s390_ldr (code, ins->dreg, ins->sreg1); \
95 #define CHECK_SRCDST_NCOM_F \
96 if (ins->dreg == ins->sreg2) { \
98 s390_ldr (code, s390_r13, ins->sreg2); \
102 if (ins->dreg != ins->sreg1) { \
103 s390_ldr (code, ins->dreg, ins->sreg1); \
106 #define MONO_EMIT_NEW_MOVE(cfg,dest,offset,src,imm,size) do { \
110 MONO_INST_NEW (cfg, inst, OP_NOP); \
113 inst->inst_offset = offset; \
115 inst->inst_imm = imm; \
117 if (s390_is_uimm12(offset)) { \
119 inst->inst_offset = offset; \
121 dReg = mono_alloc_preg (cfg); \
122 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
123 dReg, dest, offset); \
125 inst->inst_offset = 0; \
127 if (s390_is_uimm12(imm)) { \
129 inst->inst_imm = imm; \
131 sReg = mono_alloc_preg (cfg); \
132 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
134 inst->sreg1 = sReg; \
135 inst->inst_imm = 0; \
138 inst->opcode = OP_S390_MOVE; \
139 inst->backend.size = size; \
140 MONO_ADD_INS (cfg->cbb, inst); \
143 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
144 int reg = mono_alloc_preg (cfg); \
147 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
148 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
151 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
153 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
156 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
158 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
161 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
163 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
166 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
168 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
169 reg = mono_alloc_preg (cfg); \
170 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
171 reg, sr, so + sizeof (guint32)); \
172 mono_call_inst_add_outarg_reg(cfg, call, reg, dr + 1, FALSE); \
177 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
181 tmpr = mono_alloc_preg (cfg); \
182 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
183 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
187 tmpr = mono_alloc_preg (cfg); \
188 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
190 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
194 tmpr = mono_alloc_preg (cfg); \
195 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
197 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
202 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
208 #define DEBUG(a) if (cfg->verbose_level > 1) a
212 #define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
214 #define MAX (a, b) ((a) > (b) ? (a) : (b))
216 /*========================= End of Defines =========================*/
218 /*------------------------------------------------------------------*/
219 /* I n c l u d e s */
220 /*------------------------------------------------------------------*/
225 #include <mono/metadata/appdomain.h>
226 #include <mono/metadata/debug-helpers.h>
227 #include <mono/metadata/profiler-private.h>
228 #include <mono/utils/mono-math.h>
230 #include "mini-s390.h"
231 #include "cpu-s390.h"
232 #include "jit-icalls.h"
235 /*========================= End of Includes ========================*/
237 /*------------------------------------------------------------------*/
238 /* T y p e d e f s */
239 /*------------------------------------------------------------------*/
251 /*------------------------------------------------------------------*/
252 /* Used by the instrument_emit_epilog */
253 /*------------------------------------------------------------------*/
264 typedef struct InstList InstList;
278 RegTypeStructByValInFP,
283 gint32 offset; /* offset from caller's stack */
284 gint32 offparm; /* offset from callee's stack */
285 guint16 vtsize; /* in param area */
287 ArgStorage regtype; /* See RegType* */
288 guint32 size; /* Size of structure used by RegTypeStructByVal */
303 gint32 gr[5]; /* R2-R6 */
304 gdouble fp[3]; /* F0-F2 */
305 } __attribute__ ((packed)) RegParm;
307 /*========================= End of Typedefs ========================*/
309 /*------------------------------------------------------------------*/
310 /* P r o t o t y p e s */
311 /*------------------------------------------------------------------*/
313 static void indent (int);
314 static guint8 * backUpStackPtr(MonoCompile *, guint8 *, gint);
315 static void decodeParm (MonoType *, void *, int);
316 static void enter_method (MonoMethod *, RegParm *, char *);
317 static void leave_method (MonoMethod *, ...);
318 static gboolean is_regsize_var (MonoType *);
319 static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
320 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
321 static inline void add_float (guint *, size_data *, ArgInfo *);
322 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
323 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
324 gpointer mono_arch_get_lmf_addr (void);
325 static guint8 * emit_load_volatile_registers(guint8 *, MonoCompile *);
326 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *);
328 /*========================= End of Prototypes ======================*/
330 /*------------------------------------------------------------------*/
331 /* G l o b a l V a r i a b l e s */
332 /*------------------------------------------------------------------*/
334 int mono_exc_esp_offset = 0;
336 static int indent_level = 0;
338 static int appdomain_tls_offset = -1,
339 thread_tls_offset = -1;
341 pthread_key_t lmf_addr_key;
343 gboolean lmf_addr_key_inited = FALSE;
347 extern __thread MonoDomain *tls_appdomain;
348 extern __thread MonoThread *tls_current_object;
349 extern __thread gpointer mono_lmf_addr;
353 /*====================== End of Global Variables ===================*/
355 /*------------------------------------------------------------------*/
357 /* Name - mono_arch_regname */
359 /* Function - Returns the name of the register specified by */
360 /* the input parameter. */
362 /*------------------------------------------------------------------*/
365 mono_arch_regname (int reg) {
366 static const char * rnames[] = {
367 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
368 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
369 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
373 if (reg >= 0 && reg < 16)
379 /*========================= End of Function ========================*/
381 /*------------------------------------------------------------------*/
383 /* Name - mono_arch_fregname */
385 /* Function - Returns the name of the register specified by */
386 /* the input parameter. */
388 /*------------------------------------------------------------------*/
391 mono_arch_fregname (int reg) {
392 static const char * rnames[] = {
393 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
394 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
395 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
399 if (reg >= 0 && reg < 16)
405 /*========================= End of Function ========================*/
407 /*------------------------------------------------------------------*/
409 /* Name - arch_get_argument_info */
411 /* Function - Gathers information on parameters such as size, */
412 /* alignment, and padding. arg_info should be large */
413 /* enough to hold param_count + 1 entries. */
415 /* Parameters - @csig - Method signature */
416 /* @param_count - No. of parameters to consider */
417 /* @arg_info - An array to store the result info */
419 /* Returns - Size of the activation frame */
421 /*------------------------------------------------------------------*/
424 mono_arch_get_argument_info (MonoMethodSignature *csig,
426 MonoJitArgumentInfo *arg_info)
428 int k, frame_size = 0;
429 int size, align, pad;
432 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
433 frame_size += sizeof (gpointer);
437 arg_info [0].offset = offset;
440 frame_size += sizeof (gpointer);
444 arg_info [0].size = frame_size;
446 for (k = 0; k < param_count; k++) {
449 size = mono_type_native_stack_size (csig->params [k], &align);
451 size = mini_type_stack_size (NULL, csig->params [k], &align);
453 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
454 arg_info [k].pad = pad;
456 arg_info [k + 1].pad = 0;
457 arg_info [k + 1].size = size;
459 arg_info [k + 1].offset = offset;
463 align = MONO_ARCH_FRAME_ALIGNMENT;
464 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
465 arg_info [k].pad = pad;
470 /*========================= End of Function ========================*/
472 /*------------------------------------------------------------------*/
474 /* Name - retFitsInReg. */
476 /* Function - Determines if a value can be returned in one or */
479 /*------------------------------------------------------------------*/
481 static inline gboolean
482 retFitsInReg(guint32 size)
497 /*========================= End of Function ========================*/
499 /*------------------------------------------------------------------*/
501 /* Name - backStackPtr. */
503 /* Function - Restore Stack Pointer to previous frame. */
505 /*------------------------------------------------------------------*/
507 static inline guint8 *
508 backUpStackPtr(MonoCompile *cfg, guint8 *code, gint framePtr)
510 int stackSize = cfg->stack_usage;
512 if (s390_is_uimm16 (cfg->stack_usage)) {
513 s390_ahi (code, framePtr, cfg->stack_usage);
515 while (stackSize > 32767) {
516 s390_ahi (code, framePtr, 32767);
519 s390_ahi (code, framePtr, stackSize);
524 /*========================= End of Function ========================*/
526 /*------------------------------------------------------------------*/
530 /* Function - Perform nice indenting to current level */
532 /*------------------------------------------------------------------*/
538 indent_level += diff;
545 indent_level += diff;
548 /*========================= End of Function ========================*/
550 /*------------------------------------------------------------------*/
552 /* Name - decodeParm */
554 /* Function - Decode a parameter for the trace. */
556 /*------------------------------------------------------------------*/
559 decodeParm(MonoType *type, void *curParm, int size)
564 printf("[BYREF:%p], ", *((char **) curParm));
566 simpleType = mono_type_get_underlying_type(type)->type;
568 switch (simpleType) {
570 printf ("[INTPTR:%p], ", *((int **) curParm));
573 printf ("[UINTPTR:%p], ", *((int **) curParm));
575 case MONO_TYPE_BOOLEAN :
576 printf ("[BOOL:%d], ", *((int *) curParm));
578 case MONO_TYPE_CHAR :
579 printf ("[CHAR:%c], ", *((int *) curParm));
582 printf ("[INT1:%d], ", *((int *) curParm));
585 printf ("[INT2:%d], ", *((int *) curParm));
588 printf ("[INT4:%d], ", *((int *) curParm));
591 printf ("[UINT1:%u], ", *((unsigned int *) curParm));
594 printf ("[UINT2:%u], ", *((guint16 *) curParm));
597 printf ("[UINT4:%u], ", *((guint32 *) curParm));
600 printf ("[UINT8:%llu], ", *((guint64 *) curParm));
602 case MONO_TYPE_STRING : {
603 MonoString *s = *((MonoString **) curParm);
605 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
606 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
608 printf("[STRING:null], ");
612 case MONO_TYPE_CLASS :
613 case MONO_TYPE_OBJECT : {
614 MonoObject *obj = *((MonoObject **) curParm);
616 if ((obj) && (obj->vtable)) {
617 printf("[CLASS/OBJ:");
618 class = obj->vtable->klass;
619 printf("%p [%p] ",obj,curParm);
620 // if (class == mono_defaults.string_class) {
621 // printf("[STRING:%p:%s]",
622 // *obj, mono_string_to_utf8 (obj));
623 // } else if (class == mono_defaults.int32_class) {
624 // printf("[INT32:%p:%d]",
625 // obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
627 // printf("[%s.%s:%p]",
628 // class->name_space, class->name, obj);
631 printf("[OBJECT:null], ");
636 printf("[PTR:%p], ", *((gpointer **) (curParm)));
638 case MONO_TYPE_FNPTR :
639 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
641 case MONO_TYPE_ARRAY :
642 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
644 case MONO_TYPE_SZARRAY :
645 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
648 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
651 printf("[FLOAT4:%g], ", *((double *) (curParm)));
654 printf("[FLOAT8:%g], ", *((double *) (curParm)));
656 case MONO_TYPE_VALUETYPE : {
658 MonoMarshalType *info;
660 if (type->data.klass->enumtype) {
661 simpleType = mono_class_enum_basetype (type->data.klass)->type;
662 printf("{VALUETYPE} - ");
666 info = mono_marshal_load_type_info (type->data.klass);
668 if ((info->native_size == sizeof(float)) &&
669 (info->num_fields == 1) &&
670 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
671 printf("[FLOAT4:%f], ", *((float *) (curParm)));
675 if ((info->native_size == sizeof(double)) &&
676 (info->num_fields == 1) &&
677 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
678 printf("[FLOAT8:%g], ", *((double *) (curParm)));
682 printf("[VALUETYPE:");
683 for (i = 0; i < size; i++)
684 printf("%02x,", *((guint8 *)curParm+i));
688 case MONO_TYPE_TYPEDBYREF: {
690 printf("[TYPEDBYREF:");
691 for (i = 0; i < size; i++)
692 printf("%02x,", *((guint8 *)curParm+i));
697 printf("[?? - %d], ",simpleType);
702 /*========================= End of Function ========================*/
706 /*------------------------------------------------------------------*/
708 /* Name - enter_method */
710 /* Function - Perform tracing of the entry to the current */
713 /*------------------------------------------------------------------*/
716 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
718 int i, oParm = 0, iParm = 0;
720 MonoMethodSignature *sig;
727 fname = mono_method_full_name (method, TRUE);
729 printf ("ENTER: %s(", fname);
732 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
733 printf (") ip: %p sp: %p - ", (gpointer) ip, sp);
738 sig = mono_method_signature (method);
740 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
742 if (cinfo->struct_ret) {
743 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
748 gpointer *this = (gpointer *) rParm->gr[iParm];
749 obj = (MonoObject *) this;
750 if (method->klass->valuetype) {
752 printf("this:[value:%p:%08x], ",
753 this, *((guint32 *)(this+sizeof(MonoObject))));
755 printf ("this:[NULL], ");
758 // class = obj->vtable->klass;
759 // if (class == mono_defaults.string_class) {
760 // printf ("this:[STRING:%p:%s], ",
761 // obj, mono_string_to_utf8 ((MonoString *)obj));
763 // printf ("this:%p[%s.%s], ",
764 // obj, class->name_space, class->name);
766 printf("this:%p, ",obj);
768 printf ("this:NULL, ");
773 for (i = 0; i < sig->param_count; ++i) {
774 ainfo = &cinfo->args[i + oParm];
775 switch (ainfo->regtype) {
776 case RegTypeGeneral :
777 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
780 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
783 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
785 case RegTypeStructByVal :
786 if (ainfo->reg != STK_BASE)
787 curParm = &(rParm->gr[ainfo->reg-2]);
789 curParm = sp+ainfo->offset;
791 if (retFitsInReg (ainfo->vtsize))
792 decodeParm(sig->params[i],
796 decodeParm(sig->params[i],
797 *((char **) curParm),
800 case RegTypeStructByAddr :
801 if (ainfo->reg != STK_BASE)
802 curParm = &(rParm->gr[ainfo->reg-2]);
804 curParm = sp+ainfo->offset;
806 decodeParm(sig->params[i],
807 *((char **) curParm),
819 /*========================= End of Function ========================*/
821 /*------------------------------------------------------------------*/
823 /* Name - leave_method */
827 /*------------------------------------------------------------------*/
830 leave_method (MonoMethod *method, ...)
837 va_start(ap, method);
839 fname = mono_method_full_name (method, TRUE);
841 printf ("LEAVE: %s", fname);
844 type = mono_method_signature (method)->ret;
847 switch (type->type) {
850 case MONO_TYPE_BOOLEAN: {
851 int val = va_arg (ap, int);
853 printf ("[TRUE:%d]", val);
859 case MONO_TYPE_CHAR: {
860 int val = va_arg (ap, int);
861 printf ("[CHAR:%d]", val);
865 int val = va_arg (ap, int);
866 printf ("[INT1:%d]", val);
870 int val = va_arg (ap, int);
871 printf ("[UINT1:%d]", val);
875 int val = va_arg (ap, int);
876 printf ("[INT2:%d]", val);
880 int val = va_arg (ap, int);
881 printf ("[UINT2:%d]", val);
885 int val = va_arg (ap, int);
886 printf ("[INT4:%d]", val);
890 int val = va_arg (ap, int);
891 printf ("[UINT4:%d]", val);
895 int val = va_arg (ap, int);
896 printf ("[INT:%d]", val);
901 int val = va_arg (ap, int);
902 printf ("[UINT:%d]", val);
906 case MONO_TYPE_STRING: {
907 MonoString *s = va_arg (ap, MonoString *);
910 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
911 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
913 printf ("[STRING:null], ");
916 case MONO_TYPE_CLASS:
917 case MONO_TYPE_OBJECT: {
918 MonoObject *o = va_arg (ap, MonoObject *);
920 // if ((o) && (o->vtable)) {
921 // if (o->vtable->klass == mono_defaults.boolean_class) {
922 // printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
923 // } else if (o->vtable->klass == mono_defaults.int32_class) {
924 // printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
925 // } else if (o->vtable->klass == mono_defaults.int64_class) {
926 // printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
928 // printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
930 printf ("[OBJECT:%p]", o);
935 case MONO_TYPE_FNPTR:
936 case MONO_TYPE_ARRAY:
937 case MONO_TYPE_SZARRAY: {
938 gpointer p = va_arg (ap, gpointer);
939 printf ("[result=%p]", p);
943 gint64 l = va_arg (ap, gint64);
944 printf ("[LONG:%lld]", l);
948 guint64 l = va_arg (ap, guint64);
949 printf ("[ULONG:%llu]", l);
954 f = va_arg (ap, double);
955 printf ("[FLOAT4:%g]\n", f);
959 double f = va_arg (ap, double);
960 printf ("[FLOAT8:%g]\n", f);
963 case MONO_TYPE_VALUETYPE: {
964 MonoMarshalType *info;
965 if (type->data.klass->enumtype) {
966 type = mono_class_enum_basetype (type->data.klass);
969 guint8 *p = va_arg (ap, gpointer);
972 info = mono_marshal_load_type_info (type->data.klass);
974 if ((info->native_size == sizeof(float)) &&
975 (info->num_fields == 1) &&
976 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
977 double f = va_arg (ap, double);
978 printf("[FLOAT4:%g]\n", (double) f);
982 if ((info->native_size == sizeof(double)) &&
983 (info->num_fields == 1) &&
984 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
985 double f = va_arg (ap, double);
986 printf("[FLOAT8:%g]\n", f);
990 size = mono_type_size (type, &align);
997 for (j = 0; p && j < size; j++)
998 printf ("%02x,", p [j]);
1002 printf ("[VALUERET]\n");
1007 case MONO_TYPE_TYPEDBYREF: {
1008 guint8 *p = va_arg (ap, gpointer);
1010 size = mono_type_size (type, &align);
1017 for (j = 0; p && j < size; j++)
1018 printf ("%02x,", p [j]);
1022 printf ("[TYPEDBYREF]\n");
1027 printf ("(unknown return type %x)",
1028 mono_method_signature (method)->ret->type);
1031 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
1032 printf (" ip: %p\n", (gpointer) ip);
1035 /*========================= End of Function ========================*/
1037 /*------------------------------------------------------------------*/
1039 /* Name - mono_arch_cpu_init */
1041 /* Function - Perform CPU specific initialization to execute */
1044 /*------------------------------------------------------------------*/
1047 mono_arch_cpu_init (void)
1051 /*--------------------------------------*/
1052 /* Set default rounding mode for FP */
1053 /*--------------------------------------*/
1054 __asm__ ("SRNM\t%0\n\t"
1058 /*========================= End of Function ========================*/
1062 * Initialize architecture specific code.
1065 mono_arch_init (void)
1070 * Cleanup architecture specific code.
1073 mono_arch_cleanup (void)
1077 /*------------------------------------------------------------------*/
1079 /* Name - mono_arch_cpu_optimizazions */
1081 /* Function - Returns the optimizations supported on this CPU */
1083 /*------------------------------------------------------------------*/
1086 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1090 /*----------------------------------------------------------*/
1091 /* no s390-specific optimizations yet */
1092 /*----------------------------------------------------------*/
1093 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1094 // *exclude_mask = MONO_OPT_INLINE;
1098 /*========================= End of Function ========================*/
1100 /*------------------------------------------------------------------*/
1106 /*------------------------------------------------------------------*/
1109 is_regsize_var (MonoType *t) {
1112 switch (mono_type_get_underlying_type (t)->type) {
1118 case MONO_TYPE_FNPTR:
1120 case MONO_TYPE_OBJECT:
1121 case MONO_TYPE_STRING:
1122 case MONO_TYPE_CLASS:
1123 case MONO_TYPE_SZARRAY:
1124 case MONO_TYPE_ARRAY:
1126 case MONO_TYPE_VALUETYPE:
1127 if (t->data.klass->enumtype)
1128 return is_regsize_var (mono_class_enum_basetype (t->data.klass));
1134 /*========================= End of Function ========================*/
1136 /*------------------------------------------------------------------*/
1138 /* Name - mono_arch_get_allocatable_int_vars */
1142 /*------------------------------------------------------------------*/
1145 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1150 for (i = 0; i < cfg->num_varinfo; i++) {
1151 MonoInst *ins = cfg->varinfo [i];
1152 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1155 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1158 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1159 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1162 /* we can only allocate 32 bit values */
1163 if (is_regsize_var (ins->inst_vtype)) {
1164 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1165 g_assert (i == vmv->idx);
1166 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1173 /*========================= End of Function ========================*/
1175 /*------------------------------------------------------------------*/
1177 /* Name - mono_arch_global_int_regs */
1179 /* Function - Return a list of usable integer registers. */
1181 /*------------------------------------------------------------------*/
1184 mono_arch_get_global_int_regs (MonoCompile *cfg)
1187 MonoMethodHeader *header;
1190 header = cfg->header;
1191 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1192 cfg->frame_reg = s390_r11;
1194 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1196 for (i = 8; i < top; ++i) {
1197 if (cfg->frame_reg != i)
1198 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1204 /*========================= End of Function ========================*/
1206 /*------------------------------------------------------------------*/
1208 /* Name - mono_arch_flush_icache */
1210 /* Function - Flush the CPU icache. */
1212 /*------------------------------------------------------------------*/
1215 mono_arch_flush_icache (guint8 *code, gint size)
1219 /*========================= End of Function ========================*/
1221 /*------------------------------------------------------------------*/
1223 /* Name - mono_arch_is_inst_imm */
1225 /*------------------------------------------------------------------*/
1228 mono_arch_is_inst_imm (gint64 imm)
1230 /* The lowering pass will take care of it */
1234 /*========================= End of Function ========================*/
1236 /*------------------------------------------------------------------*/
1238 /* Name - add_general */
1240 /* Function - Determine code and stack size incremements for a */
1243 /*------------------------------------------------------------------*/
1246 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1251 if (*gr > S390_LAST_ARG_REG) {
1252 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1253 ainfo->offset = sz->stack_size;
1254 ainfo->reg = STK_BASE;
1255 ainfo->regtype = RegTypeBase;
1256 sz->stack_size += sizeof(int);
1257 sz->local_size += sizeof(int);
1258 sz->offStruct += sizeof(int);
1259 sz->code_size += 12;
1265 if (*gr > S390_LAST_ARG_REG - 1) {
1266 disp = sz->stack_size;
1267 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1268 disp = sz->stack_size - disp;
1269 ainfo->offset = sz->stack_size;
1270 ainfo->reg = STK_BASE;
1271 ainfo->regtype = RegTypeBase;
1272 sz->stack_size += sizeof(long long);
1273 sz->local_size += (sizeof(long long) + disp);
1274 sz->offStruct += (sizeof(long long) + disp);
1275 sz->code_size += 10;
1285 /*========================= End of Function ========================*/
1287 /*------------------------------------------------------------------*/
1289 /* Name - add_stackParm */
1291 /* Function - Determine code and stack size incremements for a */
1294 /*------------------------------------------------------------------*/
1297 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1299 if (*gr > S390_LAST_ARG_REG) {
1300 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1301 ainfo->reg = STK_BASE;
1302 ainfo->offset = sz->stack_size;
1303 sz->stack_size += sizeof (gpointer);
1304 sz->parm_size += sizeof(gpointer);
1305 sz->offStruct += sizeof(gpointer);
1308 ainfo->offset = sz->stack_size;
1311 ainfo->offparm = sz->offset;
1312 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1314 ainfo->regtype = RegTypeStructByAddr;
1315 ainfo->vtsize = size;
1316 sz->parm_size += size;
1319 /*========================= End of Function ========================*/
1321 /*------------------------------------------------------------------*/
1323 /* Name - add_float */
1325 /* Function - Determine code and stack size incremements for a */
1326 /* float parameter. */
1328 /*------------------------------------------------------------------*/
1331 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1333 if ((*fr) <= S390_LAST_FPARG_REG) {
1334 ainfo->regtype = RegTypeFP;
1340 ainfo->offset = sz->stack_size;
1341 ainfo->reg = STK_BASE;
1342 ainfo->regtype = RegTypeBase;
1344 sz->stack_size += ainfo->size;
1345 sz->local_size += ainfo->size;
1346 sz->offStruct += ainfo->size;
1350 /*========================= End of Function ========================*/
1352 /*------------------------------------------------------------------*/
1354 /* Name - get_call_info */
1356 /* Function - Determine the amount of space required for code */
1357 /* and stack. In addition determine starting points */
1358 /* for stack-based parameters, and area for struct- */
1359 /* ures being returned on the stack. */
1361 /*------------------------------------------------------------------*/
1364 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1366 guint i, fr, gr, size;
1367 int nParm = sig->hasthis + sig->param_count;
1369 guint32 simpletype, align;
1372 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1375 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1377 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1382 cinfo->struct_ret = 0;
1385 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1387 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1392 /*----------------------------------------------------------*/
1393 /* We determine the size of the return code/stack in case we*/
1394 /* need to reserve a register to be used to address a stack */
1395 /* area that the callee will use. */
1396 /*----------------------------------------------------------*/
1398 ret_type = mono_type_get_underlying_type (sig->ret);
1399 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1400 simpletype = ret_type->type;
1402 switch (simpletype) {
1403 case MONO_TYPE_BOOLEAN:
1408 case MONO_TYPE_CHAR:
1413 case MONO_TYPE_CLASS:
1414 case MONO_TYPE_OBJECT:
1415 case MONO_TYPE_SZARRAY:
1416 case MONO_TYPE_ARRAY:
1418 case MONO_TYPE_FNPTR:
1419 case MONO_TYPE_STRING:
1420 cinfo->ret.reg = s390_r2;
1425 cinfo->ret.reg = s390_f0;
1430 cinfo->ret.reg = s390_r2;
1433 case MONO_TYPE_GENERICINST:
1434 if (!mono_type_generic_inst_is_valuetype (ret_type)) {
1435 cinfo->ret.reg = s390_r2;
1440 case MONO_TYPE_VALUETYPE: {
1441 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1442 if (klass->enumtype) {
1443 simpletype = mono_class_enum_basetype (klass)->type;
1447 size = mono_class_native_size (klass, &align);
1449 size = mono_class_value_size (klass, &align);
1451 cinfo->ret.reg = s390_r2;
1452 cinfo->struct_ret = 1;
1453 cinfo->ret.size = size;
1454 cinfo->ret.vtsize = size;
1458 case MONO_TYPE_TYPEDBYREF:
1459 size = sizeof (MonoTypedRef);
1460 cinfo->ret.reg = s390_r2;
1461 cinfo->struct_ret = 1;
1462 cinfo->ret.size = size;
1463 cinfo->ret.vtsize = size;
1466 case MONO_TYPE_VOID:
1469 g_error ("mini-s390: cannot handle as return value 0x%x (0x%x)", sig->ret->type,simpletype);
1473 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1474 cinfo->args[nParm].size = sizeof(gpointer);
1478 /*----------------------------------------------------------*/
1479 /* We determine the size of the parameter code and stack */
1480 /* requirements by checking the types and sizes of the */
1482 /*----------------------------------------------------------*/
1484 for (i = 0; i < sig->param_count; ++i) {
1487 /*--------------------------------------------------*/
1488 /* Handle vararg type calls. All args are put on */
1490 /*--------------------------------------------------*/
1491 if ((sig->call_convention == MONO_CALL_VARARG) &&
1492 (i == sig->sentinelpos)) {
1493 gr = S390_LAST_ARG_REG + 1;
1494 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1497 if (sig->params [i]->byref) {
1498 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1499 cinfo->args[nParm].size = sizeof(gpointer);
1504 ptype = mono_type_get_underlying_type (sig->params [i]);
1505 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1506 simpletype = ptype->type;
1507 switch (simpletype) {
1508 case MONO_TYPE_BOOLEAN:
1511 cinfo->args[nParm].size = sizeof(char);
1512 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1517 case MONO_TYPE_CHAR:
1518 cinfo->args[nParm].size = sizeof(short);
1519 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1524 cinfo->args[nParm].size = sizeof(int);
1525 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1531 case MONO_TYPE_FNPTR:
1532 case MONO_TYPE_CLASS:
1533 case MONO_TYPE_OBJECT:
1534 case MONO_TYPE_STRING:
1535 case MONO_TYPE_SZARRAY:
1536 case MONO_TYPE_ARRAY:
1537 cinfo->args[nParm].size = sizeof(gpointer);
1538 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1543 cinfo->args[nParm].size = sizeof(long long);
1544 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1548 cinfo->args[nParm].size = sizeof(float);
1549 add_float (&fr, sz, cinfo->args+nParm);
1553 cinfo->args[nParm].size = sizeof(double);
1554 add_float (&fr, sz, cinfo->args+nParm);
1557 case MONO_TYPE_GENERICINST:
1558 if (!mono_type_generic_inst_is_valuetype (ptype)) {
1559 cinfo->args[nParm].size = sizeof(gpointer);
1560 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1565 case MONO_TYPE_VALUETYPE: {
1566 MonoMarshalType *info;
1567 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1569 size = mono_class_native_size (klass, &align);
1571 size = mono_class_value_size (klass, &align);
1573 info = mono_marshal_load_type_info (klass);
1575 if ((info->native_size == sizeof(float)) &&
1576 (info->num_fields == 1) &&
1577 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1578 cinfo->args[nParm].size = sizeof(float);
1579 add_float(&fr, sz, cinfo->args+nParm);
1584 if ((info->native_size == sizeof(double)) &&
1585 (info->num_fields == 1) &&
1586 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1587 cinfo->args[nParm].size = sizeof(double);
1588 add_float(&fr, sz, cinfo->args+nParm);
1593 cinfo->args[nParm].vtsize = 0;
1594 cinfo->args[nParm].size = 0;
1597 /*----------------------------------*/
1598 /* On S/390, structures of size 1, */
1599 /* 2, 4, and 8 bytes are passed in */
1600 /* (a) register(s). */
1601 /*----------------------------------*/
1606 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1607 cinfo->args[nParm].size = size;
1608 cinfo->args[nParm].regtype = RegTypeStructByVal;
1610 sz->local_size += sizeof(long);
1613 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1614 cinfo->args[nParm].size = sizeof(long long);
1615 cinfo->args[nParm].regtype = RegTypeStructByVal;
1617 sz->local_size += sizeof(long long);
1620 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1625 case MONO_TYPE_TYPEDBYREF: {
1626 int size = sizeof (MonoTypedRef);
1628 cinfo->args[nParm].vtsize = 0;
1629 cinfo->args[nParm].size = 0;
1632 /*----------------------------------*/
1633 /* On S/390, structures of size 1, */
1634 /* 2, 4, and 8 bytes are passed in */
1635 /* (a) register(s). */
1636 /*----------------------------------*/
1641 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1642 cinfo->args[nParm].size = size;
1643 cinfo->args[nParm].regtype = RegTypeStructByVal;
1645 sz->local_size += sizeof(long);
1648 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1649 cinfo->args[nParm].size = sizeof(long long);
1650 cinfo->args[nParm].regtype = RegTypeStructByVal;
1652 sz->local_size += sizeof(long long);
1655 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1661 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1665 /*----------------------------------------------------------*/
1666 /* If we are passing a structure back then if it won't be */
1667 /* in a register(s) then we make room at the end of the */
1668 /* parameters that may have been placed on the stack */
1669 /*----------------------------------------------------------*/
1670 if (cinfo->struct_ret) {
1671 cinfo->ret.offset = sz->stack_size;
1672 switch (cinfo->ret.size) {
1680 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1684 /*----------------------------------------------------------*/
1685 /* Handle the case where there are no implicit arguments */
1686 /*----------------------------------------------------------*/
1687 if ((sig->call_convention == MONO_CALL_VARARG) &&
1688 (sig->param_count == sig->sentinelpos)) {
1689 gr = S390_LAST_ARG_REG + 1;
1690 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1694 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1696 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1701 /*========================= End of Function ========================*/
1703 /*------------------------------------------------------------------*/
1705 /* Name - mono_arch_allocate_vars */
1707 /* Function - Set var information according to the calling */
1708 /* convention for S/390. The local var stuff should */
1709 /* most likely be split in another method. */
1711 /* Parameter - @m - Compile unit. */
1713 /*------------------------------------------------------------------*/
1716 mono_arch_allocate_vars (MonoCompile *cfg)
1718 MonoMethodSignature *sig;
1719 MonoMethodHeader *header;
1722 int iParm, iVar, offset, size, align, curinst;
1723 int frame_reg = STK_BASE;
1726 header = cfg->header;
1728 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1730 sig = mono_method_signature (cfg->method);
1732 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1734 /*---------------------------------------------------------*/
1735 /* We use the frame register also for any method that has */
1736 /* filter clauses. This way, when the handlers are called, */
1737 /* the code will reference local variables using the frame */
1738 /* reg instead of the stack pointer: if we had to restore */
1739 /* the stack pointer, we'd corrupt the method frames that */
1740 /* are already on the stack (since filters get called */
1741 /* before stack unwinding happens) when the filter code */
1742 /* would call any method. */
1743 /*---------------------------------------------------------*/
1744 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1745 frame_reg = s390_r11;
1747 cfg->frame_reg = frame_reg;
1749 cfg->arch.bkchain_reg = -1;
1751 if (frame_reg != STK_BASE)
1752 cfg->used_int_regs |= 1 << frame_reg;
1754 sig = mono_method_signature (cfg->method);
1756 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1758 if (!cinfo->struct_ret) {
1759 switch (mono_type_get_underlying_type (sig->ret)->type) {
1760 case MONO_TYPE_VOID:
1763 cfg->ret->opcode = OP_REGVAR;
1764 cfg->ret->dreg = s390_r2;
1769 /*--------------------------------------------------------------*/
1770 /* local vars are at a positive offset from the stack pointer */
1771 /* also note that if the function uses alloca, we use s390_r11 */
1772 /* to point at the local variables. */
1773 /* add parameter area size for called functions */
1774 /*--------------------------------------------------------------*/
1775 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1776 cfg->sig_cookie = 0;
1778 if (cinfo->struct_ret) {
1779 inst = cfg->vret_addr;
1780 offset = S390_ALIGN(offset, sizeof(gpointer));
1781 inst->inst_offset = offset;
1782 inst->opcode = OP_REGOFFSET;
1783 inst->inst_basereg = frame_reg;
1784 offset += sizeof(gpointer);
1785 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1786 printf ("vret_addr =");
1787 mono_print_ins (cfg->vret_addr);
1792 inst = cfg->args [0];
1793 if (inst->opcode != OP_REGVAR) {
1794 inst->opcode = OP_REGOFFSET;
1795 inst->inst_basereg = frame_reg;
1796 offset = S390_ALIGN(offset, sizeof(gpointer));
1797 inst->inst_offset = offset;
1798 offset += sizeof (gpointer);
1805 eArg = sig->param_count + sArg;
1807 if (sig->call_convention == MONO_CALL_VARARG)
1808 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1810 for (iParm = sArg; iParm < eArg; ++iParm) {
1811 inst = cfg->args [curinst];
1812 if (inst->opcode != OP_REGVAR) {
1813 switch (cinfo->args[iParm].regtype) {
1814 case RegTypeStructByAddr : {
1817 size = sizeof (gpointer);
1819 if (cinfo->args [iParm].reg == STK_BASE) {
1820 cfg->arch.bkchain_reg = s390_r12;
1821 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1823 inst->opcode = OP_REGOFFSET;
1824 inst->inst_basereg = cfg->arch.bkchain_reg;
1825 inst->inst_offset = cinfo->args [iParm].offset;
1827 inst->opcode = OP_REGOFFSET;
1828 inst->inst_basereg = frame_reg;
1829 inst->inst_offset = S390_ALIGN(offset, sizeof (gpointer));
1832 /* Add a level of indirection */
1833 MONO_INST_NEW (cfg, indir, 0);
1835 inst->opcode = OP_VTARG_ADDR;
1836 inst->inst_left = indir;
1839 case RegTypeStructByVal :
1840 size = cinfo->args[iParm].size;
1841 offset = S390_ALIGN(offset, size);
1842 inst->opcode = OP_REGOFFSET;
1843 inst->inst_basereg = frame_reg;
1844 inst->inst_offset = S390_ALIGN (offset, size);
1847 if (cinfo->args [iParm].reg == STK_BASE) {
1849 * These arguments are in the previous frame, so we can't
1850 * compute their offset from the current frame pointer right
1851 * now, since cfg->stack_offset is not yet known, so dedicate a
1852 * register holding the previous frame pointer.
1854 cfg->arch.bkchain_reg = s390_r12;
1855 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1857 inst->opcode = OP_REGOFFSET;
1858 inst->inst_basereg = cfg->arch.bkchain_reg;
1859 size = (cinfo->args[iParm].size < 4
1860 ? 4 - cinfo->args[iParm].size
1862 inst->inst_offset = cinfo->args [iParm].offset + size;
1863 size = sizeof (long);
1865 inst->opcode = OP_REGOFFSET;
1866 inst->inst_basereg = frame_reg;
1867 size = (cinfo->args[iParm].size < 8
1869 : sizeof(long long));
1870 offset = S390_ALIGN(offset, size);
1871 inst->inst_offset = offset;
1874 if ((sig->call_convention == MONO_CALL_VARARG) &&
1875 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1876 (iParm < sig->sentinelpos))
1877 cfg->sig_cookie += size;
1884 curinst = cfg->locals_start;
1885 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1886 inst = cfg->varinfo [iVar];
1887 if ((inst->flags & MONO_INST_IS_DEAD) ||
1888 (inst->opcode == OP_REGVAR))
1891 /*--------------------------------------------------*/
1892 /* inst->backend.is_pinvoke indicates native sized value types, */
1893 /* this is used by the pinvoke wrappers when they */
1894 /* call functions returning structure */
1895 /*--------------------------------------------------*/
1896 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1897 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1899 size = mono_type_size (inst->inst_vtype, &align);
1901 offset = S390_ALIGN(offset, align);
1902 inst->inst_offset = offset;
1903 inst->opcode = OP_REGOFFSET;
1904 inst->inst_basereg = frame_reg;
1906 DEBUG (g_print("allocating local %d to %ld\n", iVar, inst->inst_offset));
1909 /*------------------------------------------------------*/
1910 /* Allow space for the trace method stack area if needed*/
1911 /*------------------------------------------------------*/
1912 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method)) {
1913 offset += S390_TRACE_STACK_SIZE;
1916 /*------------------------------------------------------*/
1917 /* Reserve space to save LMF and caller saved registers */
1918 /*------------------------------------------------------*/
1919 if (cfg->method->save_lmf)
1920 offset += sizeof (MonoLMF);
1922 /*------------------------------------------------------*/
1923 /* align the offset */
1924 /*------------------------------------------------------*/
1925 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1927 /* Fix up offsets for arguments whose value is in the parent frame */
1928 for (iParm = sArg; iParm < eArg; ++iParm) {
1929 inst = cfg->args [iParm];
1931 if (inst->opcode == OP_S390_STKARG) {
1932 inst->opcode = OP_REGOFFSET;
1933 inst->inst_offset += cfg->stack_offset;
1938 /*========================= End of Function ========================*/
1940 /*------------------------------------------------------------------*/
1942 /* Name - mono_arch_create_vars */
1944 /*------------------------------------------------------------------*/
1947 mono_arch_create_vars (MonoCompile *cfg)
1949 MonoMethodSignature *sig;
1952 sig = mono_method_signature (cfg->method);
1954 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1956 if (cinfo->struct_ret) {
1957 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
1958 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1959 printf ("vret_addr = ");
1960 mono_print_ins (cfg->vret_addr);
1965 /*========================= End of Function ========================*/
1968 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
1973 case RegTypeGeneral:
1974 MONO_INST_NEW (cfg, ins, OP_MOVE);
1975 ins->dreg = mono_alloc_ireg (cfg);
1976 ins->sreg1 = tree->dreg;
1977 MONO_ADD_INS (cfg->cbb, ins);
1978 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
1981 MONO_INST_NEW (cfg, ins, OP_FMOVE);
1982 ins->dreg = mono_alloc_freg (cfg);
1983 ins->sreg1 = tree->dreg;
1984 MONO_ADD_INS (cfg->cbb, ins);
1985 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
1988 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
1989 ins->dreg = mono_alloc_freg (cfg);
1990 ins->sreg1 = tree->dreg;
1991 MONO_ADD_INS (cfg->cbb, ins);
1992 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
1995 g_assert_not_reached ();
2000 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2002 MonoMethodSignature *tmpSig;
2005 cfg->disable_aot = TRUE;
2007 /*----------------------------------------------------------*/
2008 /* mono_ArgIterator_Setup assumes the signature cookie is */
2009 /* passed first and all the arguments which were before it */
2010 /* passed on the stack after the signature. So compensate */
2011 /* by passing a different signature. */
2012 /*----------------------------------------------------------*/
2013 tmpSig = mono_metadata_signature_dup (call->signature);
2014 tmpSig->param_count -= call->signature->sentinelpos;
2015 tmpSig->sentinelpos = 0;
2016 if (tmpSig->param_count > 0)
2017 memcpy (tmpSig->params,
2018 call->signature->params + call->signature->sentinelpos,
2019 tmpSig->param_count * sizeof(MonoType *));
2021 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2022 sig_arg->dreg = mono_alloc_ireg (cfg);
2023 sig_arg->inst_p0 = tmpSig;
2024 MONO_ADD_INS (cfg->cbb, sig_arg);
2026 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2027 cinfo->sigCookie.offset, sig_arg->dreg);
2030 /*------------------------------------------------------------------*/
2032 /* Name - mono_arch_emit_call */
2034 /*------------------------------------------------------------------*/
2037 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2040 MonoMethodSignature *sig;
2042 int i, n, lParamArea;
2044 ArgInfo *ainfo = NULL;
2047 sig = call->signature;
2048 n = sig->param_count + sig->hasthis;
2049 DEBUG (g_print ("Call requires: %d parameters\n",n));
2051 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2053 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2054 call->stack_usage = MAX(stackSize, call->stack_usage);
2055 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2056 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2057 cfg->flags |= MONO_CFG_HAS_CALLS;
2059 if (cinfo->struct_ret) {
2060 MONO_INST_NEW (cfg, ins, OP_MOVE);
2061 ins->sreg1 = call->vret_var->dreg;
2062 ins->dreg = mono_alloc_preg (cfg);
2063 MONO_ADD_INS (cfg->cbb, ins);
2064 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2067 for (i = 0; i < n; ++i) {
2068 ainfo = cinfo->args + i;
2071 if (i >= sig->hasthis)
2072 t = sig->params [i - sig->hasthis];
2074 t = &mono_defaults.int_class->byval_arg;
2075 t = mono_type_get_underlying_type (t);
2077 in = call->args [i];
2079 if ((sig->call_convention == MONO_CALL_VARARG) &&
2080 (i == sig->sentinelpos)) {
2081 emit_sig_cookie (cfg, call, cinfo);
2084 switch (ainfo->regtype) {
2085 case RegTypeGeneral:
2086 if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2087 MONO_INST_NEW (cfg, ins, OP_MOVE);
2088 ins->dreg = mono_alloc_ireg (cfg);
2089 ins->sreg1 = in->dreg + 2;
2090 MONO_ADD_INS (cfg->cbb, ins);
2091 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
2092 MONO_INST_NEW (cfg, ins, OP_MOVE);
2093 ins->dreg = mono_alloc_ireg (cfg);
2094 ins->sreg1 = in->dreg + 1;
2095 MONO_ADD_INS (cfg->cbb, ins);
2096 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg + 1, FALSE);
2098 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2102 if (MONO_TYPE_ISSTRUCT (t)) {
2103 /* Valuetype passed in one fp register */
2104 ainfo->regtype = RegTypeStructByValInFP;
2107 if (ainfo->size == 4)
2108 ainfo->regtype = RegTypeFPR4;
2109 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2112 case RegTypeStructByVal:
2113 case RegTypeStructByAddr: {
2117 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2118 size = sizeof (MonoTypedRef);
2119 align = sizeof (gpointer);
2123 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2126 * Other backends use mono_type_stack_size (), but that
2127 * aligns the size to 8, which is larger than the size of
2128 * the source, leading to reads of invalid memory if the
2129 * source is at the end of address space.
2131 size = mono_class_value_size (in->klass, &align);
2134 g_assert (in->klass);
2136 ainfo->offparm += cinfo->sz.offStruct;
2138 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2139 ins->sreg1 = in->dreg;
2140 ins->klass = in->klass;
2141 ins->backend.size = ainfo->size;
2142 ins->inst_p0 = call;
2143 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2144 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2146 MONO_ADD_INS (cfg->cbb, ins);
2148 if (ainfo->regtype == RegTypeStructByAddr) {
2150 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2151 * use the normal OUTARG opcodes to pass the address of the location to
2154 int treg = mono_alloc_preg (cfg);
2155 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2156 STK_BASE, ainfo->offparm);
2157 if (ainfo->reg == STK_BASE) {
2158 /* The address is passed on the stack */
2159 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2160 ins->inst_destbasereg = STK_BASE;
2161 ins->inst_offset = ainfo->offset;
2163 MONO_ADD_INS (cfg->cbb, ins);
2165 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2171 if (!t->byref && t->type == MONO_TYPE_R4) {
2172 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2173 STK_BASE, ainfo->offset,
2175 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2176 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2177 STK_BASE, ainfo->offset,
2179 } else if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2180 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2181 ins->inst_destbasereg = STK_BASE;
2182 ins->inst_offset = ainfo->offset + MINI_LS_WORD_OFFSET;
2183 ins->sreg1 = in->dreg + 1;
2184 MONO_ADD_INS (cfg->cbb, ins);
2186 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2187 ins->inst_destbasereg = STK_BASE;
2188 ins->inst_offset = ainfo->offset + MINI_MS_WORD_OFFSET;
2189 ins->sreg1 = in->dreg + 2;
2190 MONO_ADD_INS (cfg->cbb, ins);
2192 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2193 ins->inst_destbasereg = STK_BASE;
2194 ins->inst_offset = ainfo->offset;
2195 ins->sreg1 = in->dreg;
2196 MONO_ADD_INS (cfg->cbb, ins);
2200 g_assert_not_reached ();
2206 * Handle the case where there are no implicit arguments
2208 if ((sig->call_convention == MONO_CALL_VARARG) &&
2209 (i == sig->sentinelpos)) {
2210 emit_sig_cookie (cfg, call, cinfo);
2214 /*========================= End of Function ========================*/
2216 /*------------------------------------------------------------------*/
2218 /* Name - mono_arch_emit_outarg_vt */
2220 /*------------------------------------------------------------------*/
2223 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2225 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2226 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2227 int size = ins->backend.size;
2229 if (ainfo->regtype == RegTypeStructByVal) {
2231 arg->ins.sreg1 = ainfo->reg;
2232 arg->ins.opcode = OP_OUTARG_VT;
2233 arg->size = ainfo->size;
2234 arg->offset = ainfo->offset;
2235 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2237 if (ainfo->reg != STK_BASE) {
2238 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2240 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2243 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2244 int dreg = mono_alloc_freg (cfg);
2246 if (ainfo->size == 4) {
2247 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2248 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2250 g_assert (ainfo->size == 8);
2252 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2255 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2257 MONO_EMIT_NEW_MOVE (cfg, STK_BASE, ainfo->offparm,
2258 src->dreg, 0, size);
2262 /*------------------------------------------------------------------*/
2264 /* Name - mono_arch_emit_setret */
2266 /*------------------------------------------------------------------*/
2269 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2271 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2274 if (ret->type == MONO_TYPE_R4) {
2275 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2277 } else if (ret->type == MONO_TYPE_R8) {
2278 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2280 } else if (ret->type == MONO_TYPE_I8 || ret->type == MONO_TYPE_U8) {
2281 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r3, val->dreg + 1);
2282 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r2, val->dreg + 2);
2287 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2290 /*========================= End of Function ========================*/
2292 /*------------------------------------------------------------------*/
2294 /* Name - mono_arch_instrument_mem_needs */
2296 /* Function - Allow tracing to work with this interface (with */
2297 /* an optional argument). */
2299 /*------------------------------------------------------------------*/
2302 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2304 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2306 /* split prolog-epilog requirements? */
2307 *code = 50; /* max bytes needed: check this number */
2310 /*========================= End of Function ========================*/
2312 /*------------------------------------------------------------------*/
2314 /* Name - mono_arch_instrument_prolog */
2316 /* Function - Create an "instrumented" prolog. */
2318 /*------------------------------------------------------------------*/
2321 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2322 gboolean enable_arguments)
2329 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2330 if (cfg->method->save_lmf)
2331 parmOffset -= sizeof(MonoLMF);
2332 fpOffset = parmOffset + (5*sizeof(gint32));
2333 if (fpOffset > 4096) {
2334 s390_lr (code, s390_r12, STK_BASE);
2336 while (fpOffset > 4096) {
2337 s390_ahi (code, baseReg, 4096);
2345 s390_stm (code, s390_r2, s390_r6, baseReg, parmOffset);
2346 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2347 s390_std (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2348 s390_std (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2349 s390_basr (code, s390_r13, 0);
2351 s390_word (code, cfg->method);
2352 s390_word (code, func);
2353 s390_l (code, s390_r2, 0, s390_r13, 4);
2354 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2355 s390_lr (code, s390_r4, STK_BASE);
2356 s390_ahi (code, s390_r4, cfg->stack_usage);
2357 s390_l (code, s390_r1, 0, s390_r13, 8);
2358 s390_basr (code, s390_r14, s390_r1);
2359 s390_ld (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2360 s390_ld (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2361 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2362 s390_lm (code, s390_r2, s390_r6, baseReg, parmOffset);
2367 /*========================= End of Function ========================*/
2369 /*------------------------------------------------------------------*/
2371 /* Name - mono_arch_instrument_epilog */
2373 /* Function - Create an epilog that will handle the returned */
2374 /* values used in instrumentation. */
2376 /*------------------------------------------------------------------*/
2379 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2382 int save_mode = SAVE_NONE,
2384 MonoMethod *method = cfg->method;
2385 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2387 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2388 if (method->save_lmf)
2389 saveOffset -= sizeof(MonoLMF);
2393 case MONO_TYPE_VOID:
2394 /* special case string .ctor icall */
2395 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2396 save_mode = SAVE_ONE;
2398 save_mode = SAVE_NONE;
2402 save_mode = SAVE_TWO;
2405 save_mode = SAVE_R4;
2408 save_mode = SAVE_R8;
2410 case MONO_TYPE_VALUETYPE:
2411 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2412 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2415 save_mode = SAVE_STRUCT;
2418 save_mode = SAVE_ONE;
2422 switch (save_mode) {
2424 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2425 if (enable_arguments) {
2426 s390_lr (code, s390_r4, s390_r3);
2427 s390_lr (code, s390_r3, s390_r2);
2431 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2432 if (enable_arguments) {
2433 s390_lr (code, s390_r3, s390_r2);
2437 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2438 if (enable_arguments) {
2439 s390_ldebr (code, s390_f0, s390_f0);
2443 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2446 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2447 if (enable_arguments) {
2448 s390_l (code, s390_r3, 0, cfg->frame_reg,
2449 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2457 s390_basr (code, s390_r13, 0);
2459 s390_word (code, cfg->method);
2460 s390_word (code, func);
2461 s390_l (code, s390_r2, 0, s390_r13, 4);
2462 s390_l (code, s390_r1, 0, s390_r13, 8);
2463 s390_basr (code, s390_r14, s390_r1);
2465 switch (save_mode) {
2467 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2470 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2474 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2477 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2487 /*========================= End of Function ========================*/
2490 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2494 /*------------------------------------------------------------------*/
2496 /* Name - mono_arch_peephole_pass */
2498 /* Function - Form a peephole pass at the code looking for */
2499 /* simple optimizations. */
2501 /*------------------------------------------------------------------*/
2504 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2508 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2509 mono_peephole_ins (bb, ins);
2513 /*========================= End of Function ========================*/
2516 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2518 MonoInst *ins, *next;
2520 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2521 switch (ins->opcode) {
2526 case OP_IDIV_UN_IMM:
2527 case OP_IREM_UN_IMM:
2528 case OP_LOCALLOC_IMM:
2529 mono_decompose_op_imm (cfg, bb, ins);
2536 bb->max_vreg = cfg->next_vreg;
2539 /*========================= End of Function ========================*/
2541 /*------------------------------------------------------------------*/
2543 /* Name - emit_float_to_int */
2545 /* Function - Create instructions which will convert a floating */
2546 /* point value to integer. */
2548 /*------------------------------------------------------------------*/
2551 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2553 /* sreg is a float, dreg is an integer reg. */
2555 s390_cfdbr (code, dreg, 5, sreg);
2558 s390_lhi (code, s390_r0, 0);
2559 s390_lhi (code, s390_r13, 0xff);
2560 s390_ltr (code, dreg, dreg);
2562 s390_lhi (code, s390_r0, 0x80);
2563 s390_nr (code, dreg, s390_r13);
2564 s390_or (code, dreg, s390_r0);
2569 s390_basr (code, s390_r13, 0);
2571 s390_llong (code, 0x41e0000000000000LL);
2572 s390_llong (code, 0x41f0000000000000LL);
2573 s390_ldr (code, s390_f15, sreg);
2574 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2575 s390_jl (code, 0); CODEPTR(code, o[0]);
2576 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2577 s390_cfdbr (code, dreg, 7, s390_f15);
2579 PTRSLOT(code, o[0]);
2580 s390_cfdbr (code, dreg, 5, sreg);
2583 s390_lhi (code, s390_r0, 0xff);
2584 s390_nr (code, dreg, s390_r0);
2587 s390_lhi (code, s390_r0, -1);
2588 s390_srl (code, s390_r0, 0, 16);
2589 s390_nr (code, dreg, s390_r0);
2596 /*========================= End of Function ========================*/
2598 /*------------------------------------------------------------------*/
2600 /* Name - mono_arch_output_basic_block */
2602 /* Function - Perform the "real" work of emitting instructions */
2603 /* that will do the work of in the basic block. */
2605 /*------------------------------------------------------------------*/
2608 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2613 guint8 *code = cfg->native_code + cfg->code_len;
2614 MonoInst *last_ins = NULL;
2615 guint last_offset = 0;
2616 int max_len, cpos, src2;
2618 /* we don't align basic blocks of loops on s390 */
2620 if (cfg->verbose_level > 2)
2621 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2623 cpos = bb->max_offset;
2625 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2626 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2627 //g_assert (!mono_compile_aot);
2630 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2631 /* this is not thread save, but good enough */
2632 /* fixme: howto handle overflows? */
2633 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2636 MONO_BB_FOR_EACH_INS (bb, ins) {
2637 offset = code - cfg->native_code;
2639 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2641 if (offset > (cfg->code_size - max_len - 16)) {
2642 cfg->code_size *= 2;
2643 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2644 code = cfg->native_code + offset;
2647 mono_debug_record_line_number (cfg, ins, offset);
2649 switch (ins->opcode) {
2650 case OP_STOREI1_MEMBASE_IMM: {
2651 s390_lhi (code, s390_r0, ins->inst_imm);
2652 if (s390_is_uimm12(ins->inst_offset))
2653 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2655 s390_basr (code, s390_r13, 0);
2657 s390_word (code, ins->inst_offset);
2658 s390_l (code, s390_r13, 0, s390_r13, 4);
2659 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2663 case OP_STOREI2_MEMBASE_IMM: {
2664 s390_lhi (code, s390_r0, ins->inst_imm);
2665 if (s390_is_uimm12(ins->inst_offset)) {
2666 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2668 s390_basr (code, s390_r13, 0);
2670 s390_word (code, ins->inst_offset);
2671 s390_l (code, s390_r13, 0, s390_r13, 4);
2672 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2676 case OP_STORE_MEMBASE_IMM:
2677 case OP_STOREI4_MEMBASE_IMM: {
2678 if (s390_is_imm16(ins->inst_imm)) {
2679 s390_lhi (code, s390_r0, ins->inst_imm);
2681 s390_basr (code, s390_r13, 0);
2683 s390_word (code, ins->inst_imm);
2684 s390_l (code, s390_r0, 0, s390_r13, 4);
2686 if (s390_is_uimm12(ins->inst_offset)) {
2687 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2689 s390_basr (code, s390_r13, 0);
2691 s390_word (code, ins->inst_offset);
2692 s390_l (code, s390_r13, 0, s390_r13, 4);
2693 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2697 case OP_STOREI1_MEMBASE_REG: {
2698 if (s390_is_uimm12(ins->inst_offset)) {
2699 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2701 s390_basr (code, s390_r13, 0);
2703 s390_word (code, ins->inst_offset);
2704 s390_l (code, s390_r13, 0, s390_r13, 4);
2705 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2709 case OP_STOREI2_MEMBASE_REG: {
2710 if (s390_is_uimm12(ins->inst_offset)) {
2711 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2713 s390_basr (code, s390_r13, 0);
2715 s390_word (code, ins->inst_offset);
2716 s390_l (code, s390_r13, 0, s390_r13, 4);
2717 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2721 case OP_STORE_MEMBASE_REG:
2722 case OP_STOREI4_MEMBASE_REG: {
2723 if (s390_is_uimm12(ins->inst_offset)) {
2724 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2726 s390_basr (code, s390_r13, 0);
2728 s390_word (code, ins->inst_offset);
2729 s390_l (code, s390_r13, 0, s390_r13, 4);
2730 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2735 g_assert_not_reached ();
2737 case OP_LOAD_MEMBASE:
2738 case OP_LOADI4_MEMBASE:
2739 case OP_LOADU4_MEMBASE: {
2740 if (s390_is_uimm12(ins->inst_offset))
2741 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2743 if (s390_is_imm16(ins->inst_offset)) {
2744 s390_lhi (code, s390_r13, ins->inst_offset);
2745 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2747 s390_basr (code, s390_r13, 0);
2749 s390_word (code, ins->inst_offset);
2750 s390_l (code, s390_r13, 0, s390_r13, 4);
2751 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2756 case OP_LOADU1_MEMBASE: {
2757 s390_lhi (code, s390_r0, 0);
2758 if (s390_is_uimm12(ins->inst_offset))
2759 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2761 s390_basr (code, s390_r13, 0);
2763 s390_word (code, ins->inst_offset);
2764 s390_l (code, s390_r13, 0, s390_r13, 4);
2765 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2767 s390_lr (code, ins->dreg, s390_r0);
2770 case OP_LOADI1_MEMBASE: {
2771 s390_lhi (code, s390_r0, 0);
2772 if (s390_is_uimm12(ins->inst_offset))
2773 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2775 s390_basr (code, s390_r13, 0);
2777 s390_word (code, ins->inst_offset);
2778 s390_l (code, s390_r13, 0, s390_r13, 4);
2779 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2781 s390_lhi (code, s390_r13, 0x80);
2782 s390_nr (code, s390_r13, s390_r0);
2784 s390_lhi (code, s390_r13, 0xff00);
2785 s390_or (code, s390_r0, s390_r13);
2786 s390_lr (code, ins->dreg, s390_r0);
2789 case OP_LOADU2_MEMBASE: {
2790 s390_lhi (code, s390_r0, 0);
2791 if (s390_is_uimm12(ins->inst_offset))
2792 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
2794 s390_basr (code, s390_r13, 0);
2796 s390_word (code, ins->inst_offset);
2797 s390_l (code, s390_r13, 0, s390_r13, 4);
2798 s390_ar (code, s390_r13, ins->inst_basereg);
2799 s390_icm (code, s390_r0, 3, s390_r13, 0);
2801 s390_lr (code, ins->dreg, s390_r0);
2804 case OP_LOADI2_MEMBASE: {
2805 s390_lhi (code, s390_r0, 0);
2806 if (s390_is_uimm12(ins->inst_offset))
2807 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2809 s390_basr (code, s390_r13, 0);
2811 s390_word (code, ins->inst_offset);
2812 s390_l (code, s390_r13, 0, s390_r13, 4);
2813 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2815 s390_lr (code, ins->dreg, s390_r0);
2819 case OP_ICONV_TO_I1: {
2820 if (ins->dreg != ins->sreg1)
2821 s390_lr (code, ins->dreg, ins->sreg1);
2822 s390_sll (code, ins->dreg, 0, 24);
2823 s390_sra (code, ins->dreg, 0, 24);
2826 case OP_ICONV_TO_I2: {
2827 if (ins->dreg != ins->sreg1)
2828 s390_lr (code, ins->dreg, ins->sreg1);
2829 s390_sll (code, ins->dreg, 0, 16);
2830 s390_sra (code, ins->dreg, 0, 16);
2833 case OP_ICONV_TO_U1: {
2834 s390_lhi (code, s390_r0, 0xff);
2835 if (ins->dreg != ins->sreg1) {
2836 s390_lr (code, ins->dreg, ins->sreg1);
2838 s390_nr (code, ins->dreg, s390_r0);
2841 case OP_ICONV_TO_U2: {
2842 s390_lhi (code, s390_r0, -1);
2843 s390_sll (code, s390_r0, 0, 16);
2844 s390_srl (code, s390_r0, 0, 16);
2845 if (ins->dreg != ins->sreg1) {
2846 s390_lr (code, ins->dreg, ins->sreg1);
2848 s390_nr (code, ins->dreg, s390_r0);
2853 gboolean un = FALSE;
2854 MonoInst *next = ins->next;
2857 (((next->opcode >= OP_IBNE_UN) &&
2858 (next->opcode <= OP_IBLT_UN)) ||
2859 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2860 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2861 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2862 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2863 ((next->opcode == OP_CLT_UN) ||
2864 (next->opcode == OP_CGT_UN)) ||
2865 ((next->opcode == OP_ICLT_UN) ||
2866 (next->opcode == OP_ICGT_UN))))
2870 s390_clr (code, ins->sreg1, ins->sreg2);
2872 s390_cr (code, ins->sreg1, ins->sreg2);
2875 case OP_COMPARE_IMM:
2876 case OP_ICOMPARE_IMM: {
2877 gboolean un = FALSE;
2878 MonoInst *next = ins->next;
2881 (((next->opcode >= OP_IBNE_UN) &&
2882 (next->opcode <= OP_IBLT_UN)) ||
2883 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2884 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2885 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2886 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2887 ((next->opcode == OP_CLT_UN) ||
2888 (next->opcode == OP_CGT_UN)) ||
2889 ((next->opcode == OP_ICLT_UN) ||
2890 (next->opcode == OP_ICGT_UN))))
2893 if (s390_is_imm16 (ins->inst_imm)) {
2894 s390_lhi (code, s390_r0, ins->inst_imm);
2896 s390_clr (code, ins->sreg1, s390_r0);
2898 s390_cr (code, ins->sreg1, s390_r0);
2901 s390_basr (code, s390_r13, 0);
2903 s390_word (code, ins->inst_imm);
2905 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2907 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2912 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_break);
2913 s390_brasl (code, s390_r14, 0);
2919 s390_alr (code, ins->dreg, src2);
2924 s390_ar (code, ins->dreg, src2);
2930 s390_alcr (code, ins->dreg, src2);
2935 if (ins->dreg != ins->sreg1) {
2936 s390_lr (code, ins->dreg, ins->sreg1);
2939 (ins->next->opcode == OP_ADC_IMM)) {
2940 s390_basr (code, s390_r13, 0);
2942 s390_word (code, ins->inst_imm);
2943 s390_a (code, ins->dreg, 0, s390_r13, 4);
2945 if (s390_is_imm16 (ins->inst_imm)) {
2946 s390_ahi (code, ins->dreg, ins->inst_imm);
2948 s390_basr (code, s390_r13, 0);
2950 s390_word (code, ins->inst_imm);
2951 s390_a (code, ins->dreg, 0, s390_r13, 4);
2956 case OP_ADDCC_IMM: {
2958 (ins->next->opcode == OP_ADC_IMM)) {
2959 s390_basr (code, s390_r13, 0);
2961 s390_word (code, ins->inst_imm);
2962 if (ins->dreg != ins->sreg1) {
2963 s390_lr (code, ins->dreg, ins->sreg1);
2965 s390_al (code, ins->dreg, 0, s390_r13, 4);
2967 if (s390_is_imm16 (ins->inst_imm)) {
2968 if (ins->dreg != ins->sreg1) {
2969 s390_lr (code, ins->dreg, ins->sreg1);
2971 s390_lhi (code, s390_r0, ins->inst_imm);
2972 s390_alcr (code, ins->dreg, s390_r0);
2974 s390_basr (code, s390_r13, 0);
2976 s390_word (code, ins->inst_imm);
2977 if (ins->dreg != ins->sreg1) {
2978 s390_lr (code, ins->dreg, ins->sreg1);
2980 s390_al (code, ins->dreg, 0, s390_r13, 4);
2986 if (s390_is_imm16 (ins->inst_imm)) {
2987 if (ins->dreg != ins->sreg1) {
2988 s390_lr (code, ins->dreg, ins->sreg1);
2990 s390_lhi (code, s390_r0, ins->inst_imm);
2991 s390_alcr (code, ins->dreg, s390_r0);
2993 s390_basr (code, s390_r13, 0);
2995 s390_word (code, ins->inst_imm);
2996 s390_l (code, s390_r13, 0, s390_r13, 4);
2997 s390_alcr (code, ins->dreg, s390_r13);
3002 case OP_S390_IADD_OVF: {
3004 s390_ar (code, ins->dreg, src2);
3005 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3008 case OP_IADD_OVF_UN:
3009 case OP_S390_IADD_OVF_UN: {
3011 s390_alr (code, ins->dreg, src2);
3012 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3016 case OP_S390_LADD: {
3017 s390_alr (code, s390_r0, ins->sreg1);
3019 s390_ahi (code, s390_r1, 1);
3020 s390_ar (code, s390_r1, ins->sreg2);
3021 s390_lr (code, ins->dreg, s390_r0);
3022 s390_lr (code, ins->dreg+1, s390_r1);
3026 case OP_S390_LADD_OVF: {
3028 s390_alr (code, s390_r0, ins->sreg1);
3029 s390_jnc (code, 0); CODEPTR(code, o[0]);
3030 s390_ahi (code, s390_r1, 1);
3031 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3032 PTRSLOT (code, o[0]);
3033 s390_ar (code, s390_r1, ins->sreg2);
3034 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3035 s390_lr (code, ins->dreg, s390_r0);
3036 s390_lr (code, ins->dreg+1, s390_r1);
3039 case OP_LADD_OVF_UN:
3040 case OP_S390_LADD_OVF_UN: {
3041 s390_alr (code, s390_r0, ins->sreg1);
3042 s390_alcr (code, s390_r1, ins->sreg2);
3043 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3044 s390_lr (code, ins->dreg, s390_r0);
3045 s390_lr (code, ins->dreg+1, s390_r1);
3048 case OP_ADD_OVF_CARRY: {
3050 s390_lhi (code, s390_r0, 0);
3051 s390_lr (code, s390_r1, s390_r0);
3052 s390_alcr (code, s390_r0, s390_r1);
3053 s390_ar (code, ins->dreg, src2);
3054 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3055 s390_ar (code, ins->dreg, s390_r0);
3056 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3059 case OP_ADD_OVF_UN_CARRY: {
3061 s390_alcr (code, ins->dreg, src2);
3062 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3068 s390_slr (code, ins->dreg, src2);
3073 s390_sr (code, ins->dreg, src2);
3079 s390_slbr (code, ins->dreg, src2);
3082 case OP_SUBCC_IMM: {
3083 if (s390_is_imm16 (-ins->inst_imm)) {
3084 if (ins->dreg != ins->sreg1) {
3085 s390_lr (code, ins->dreg, ins->sreg1);
3087 s390_lhi (code, s390_r0, ins->inst_imm);
3088 s390_slr (code, ins->dreg, s390_r0);
3090 s390_basr (code, s390_r13, 0);
3092 s390_word (code, ins->inst_imm);
3093 if (ins->dreg != ins->sreg1) {
3094 s390_lr (code, ins->dreg, ins->sreg1);
3096 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3102 if (s390_is_imm16 (-ins->inst_imm)) {
3103 if (ins->dreg != ins->sreg1) {
3104 s390_lr (code, ins->dreg, ins->sreg1);
3106 s390_ahi (code, ins->dreg, -ins->inst_imm);
3108 s390_basr (code, s390_r13, 0);
3110 s390_word (code, ins->inst_imm);
3111 if (ins->dreg != ins->sreg1) {
3112 s390_lr (code, ins->dreg, ins->sreg1);
3114 s390_s (code, ins->dreg, 0, s390_r13, 4);
3119 if (ins->dreg != ins->sreg1) {
3120 s390_lr (code, ins->dreg, ins->sreg1);
3122 if (s390_is_imm16 (-ins->inst_imm)) {
3123 s390_lhi (code, s390_r0, ins->inst_imm);
3124 s390_slbr (code, ins->dreg, s390_r0);
3126 s390_basr (code, s390_r13, 0);
3128 s390_word (code, ins->inst_imm);
3129 s390_slb (code, ins->dreg, 0, s390_r13, 4);
3134 case OP_S390_ISUB_OVF: {
3136 s390_sr (code, ins->dreg, src2);
3137 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3140 case OP_ISUB_OVF_UN:
3141 case OP_S390_ISUB_OVF_UN: {
3143 s390_slr (code, ins->dreg, src2);
3144 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3148 case OP_S390_LSUB: {
3149 s390_lr (code, s390_r14, ins->sreg2);
3150 s390_slr (code, s390_r0, ins->sreg1);
3152 s390_ahi (code, s390_r14, 1);
3153 s390_sr (code, s390_r1, s390_r14);
3154 s390_lr (code, ins->dreg, s390_r0);
3155 s390_lr (code, ins->dreg+1, s390_r1);
3159 case OP_S390_LSUB_OVF: {
3161 s390_lr (code, s390_r14, ins->sreg2);
3162 s390_slr (code, s390_r0, ins->sreg1);
3163 s390_jnl (code, 0); CODEPTR(code, o[0]);
3164 s390_ahi (code, s390_r14, 1);
3165 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3166 PTRSLOT (code, o[0]);
3167 s390_sr (code, s390_r1, s390_r14);
3168 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3169 s390_lr (code, ins->dreg, s390_r0);
3170 s390_lr (code, ins->dreg+1, s390_r1);
3173 case OP_LSUB_OVF_UN:
3174 case OP_S390_LSUB_OVF_UN: {
3175 s390_slr (code, s390_r0, ins->sreg1);
3176 s390_slbr (code, s390_r1, ins->sreg2);
3177 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3178 s390_lr (code, ins->dreg, s390_r0);
3179 s390_lr (code, ins->dreg+1, s390_r1);
3182 case OP_SUB_OVF_CARRY: {
3184 s390_lhi (code, s390_r0, 0);
3185 s390_lr (code, s390_r1, s390_r0);
3186 s390_slbr (code, s390_r0, s390_r1);
3187 s390_sr (code, ins->dreg, src2);
3188 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3189 s390_ar (code, ins->dreg, s390_r0);
3190 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3193 case OP_SUB_OVF_UN_CARRY: {
3195 s390_slbr (code, ins->dreg, src2);
3196 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3200 if (ins->sreg1 == ins->dreg) {
3201 s390_nr (code, ins->dreg, ins->sreg2);
3204 if (ins->sreg2 == ins->dreg) {
3205 s390_nr (code, ins->dreg, ins->sreg1);
3208 s390_lr (code, ins->dreg, ins->sreg1);
3209 s390_nr (code, ins->dreg, ins->sreg2);
3216 if (s390_is_imm16 (ins->inst_imm)) {
3217 s390_lhi (code, s390_r0, ins->inst_imm);
3218 if (ins->dreg != ins->sreg1) {
3219 s390_lr (code, ins->dreg, ins->sreg1);
3221 s390_nr (code, ins->dreg, s390_r0);
3223 s390_basr (code, s390_r13, 0);
3225 s390_word (code, ins->inst_imm);
3226 if (ins->dreg != ins->sreg1) {
3227 s390_lr (code, ins->dreg, ins->sreg1);
3229 s390_n (code, ins->dreg, 0, s390_r13, 4);
3234 s390_lr (code, s390_r0, ins->sreg1);
3235 s390_srda (code, s390_r0, 0, 32);
3236 s390_dr (code, s390_r0, ins->sreg2);
3237 s390_lr (code, ins->dreg, s390_r1);
3241 s390_lr (code, s390_r0, ins->sreg1);
3242 s390_srdl (code, s390_r0, 0, 32);
3243 s390_dlr (code, s390_r0, ins->sreg2);
3244 s390_lr (code, ins->dreg, s390_r1);
3248 s390_lr (code, s390_r0, ins->sreg1);
3249 s390_srda (code, s390_r0, 0, 32);
3250 s390_dr (code, s390_r0, ins->sreg2);
3251 s390_lr (code, ins->dreg, s390_r0);
3254 s390_lr (code, s390_r0, ins->sreg1);
3255 s390_srdl (code, s390_r0, 0, 32);
3256 s390_dlr (code, s390_r0, ins->sreg2);
3257 s390_lr (code, ins->dreg, s390_r0);
3261 if (ins->sreg1 == ins->dreg) {
3262 s390_or (code, ins->dreg, ins->sreg2);
3265 if (ins->sreg2 == ins->dreg) {
3266 s390_or (code, ins->dreg, ins->sreg1);
3269 s390_lr (code, ins->dreg, ins->sreg1);
3270 s390_or (code, ins->dreg, ins->sreg2);
3277 if (s390_is_imm16 (ins->inst_imm)) {
3278 s390_lhi (code, s390_r0, ins->inst_imm);
3279 if (ins->dreg != ins->sreg1) {
3280 s390_lr (code, ins->dreg, ins->sreg1);
3282 s390_or (code, ins->dreg, s390_r0);
3284 s390_basr (code, s390_r13, 0);
3286 s390_word (code, ins->inst_imm);
3287 if (ins->dreg != ins->sreg1) {
3288 s390_lr (code, ins->dreg, ins->sreg1);
3290 s390_o (code, ins->dreg, 0, s390_r13, 4);
3295 if (ins->sreg1 == ins->dreg) {
3296 s390_xr (code, ins->dreg, ins->sreg2);
3299 if (ins->sreg2 == ins->dreg) {
3300 s390_xr (code, ins->dreg, ins->sreg1);
3303 s390_lr (code, ins->dreg, ins->sreg1);
3304 s390_xr (code, ins->dreg, ins->sreg2);
3311 if (s390_is_imm16 (ins->inst_imm)) {
3312 s390_lhi (code, s390_r0, ins->inst_imm);
3313 if (ins->dreg != ins->sreg1) {
3314 s390_lr (code, ins->dreg, ins->sreg1);
3316 s390_xr (code, ins->dreg, s390_r0);
3318 s390_basr (code, s390_r13, 0);
3320 s390_word (code, ins->inst_imm);
3321 if (ins->dreg != ins->sreg1) {
3322 s390_lr (code, ins->dreg, ins->sreg1);
3324 s390_x (code, ins->dreg, 0, s390_r13, 4);
3330 s390_sll (code, ins->dreg, src2, 0);
3335 if (ins->sreg1 != ins->dreg) {
3336 s390_lr (code, ins->dreg, ins->sreg1);
3338 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3343 s390_sra (code, ins->dreg, src2, 0);
3348 if (ins->sreg1 != ins->dreg) {
3349 s390_lr (code, ins->dreg, ins->sreg1);
3351 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3355 case OP_ISHR_UN_IMM: {
3356 if (ins->sreg1 != ins->dreg) {
3357 s390_lr (code, ins->dreg, ins->sreg1);
3359 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3364 s390_srl (code, ins->dreg, src2, 0);
3368 if (ins->sreg1 != ins->dreg) {
3369 s390_lr (code, ins->dreg, ins->sreg1);
3371 s390_lhi (code, s390_r0, -1);
3372 s390_xr (code, ins->dreg, s390_r0);
3376 s390_lcr (code, ins->dreg, ins->sreg1);
3379 case OP_S390_LNEG: {
3381 g_assert (ins->dreg + 1 != ins->sreg1);
3382 s390_lcr (code, ins->dreg + 1, ins->sreg2);
3383 s390_lcr (code, ins->dreg, ins->sreg1);
3385 s390_bctr (code, ins->dreg + 1, 0);
3389 if (ins->sreg1 == ins->dreg) {
3390 s390_msr (code, ins->dreg, ins->sreg2);
3393 if (ins->sreg2 == ins->dreg) {
3394 s390_msr (code, ins->dreg, ins->sreg1);
3397 s390_lr (code, ins->dreg, ins->sreg1);
3398 s390_msr (code, ins->dreg, ins->sreg2);
3405 if (s390_is_imm16 (ins->inst_imm)) {
3406 s390_lhi (code, s390_r13, ins->inst_imm);
3408 s390_basr (code, s390_r13, 0);
3410 s390_word (code, ins->inst_imm);
3411 // if (ins->dreg != ins->sreg1) {
3412 // s390_lr (code, ins->dreg, ins->sreg1);
3414 s390_l (code, s390_r13, 0, s390_r13, 4);
3416 if (ins->dreg != ins->sreg1) {
3417 s390_lr (code, ins->dreg, ins->sreg1);
3419 s390_msr (code, ins->dreg, s390_r13);
3424 s390_ltr (code, s390_r1, ins->sreg1);
3425 s390_jz (code, 0); CODEPTR(code, o[0]);
3426 s390_ltr (code, s390_r0, ins->sreg2);
3428 s390_lhi (code, s390_r1, 0);
3429 s390_j (code, 0); CODEPTR(code, o[1]);
3430 s390_xr (code, s390_r0, s390_r1);
3431 s390_msr (code, s390_r1, ins->sreg2);
3432 s390_xr (code, s390_r0, s390_r1);
3433 s390_srl (code, s390_r0, 0, 31);
3434 s390_ltr (code, s390_r0, s390_r0);
3435 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3436 PTRSLOT (code, o[0]);
3437 PTRSLOT (code, o[1]);
3438 s390_lr (code, ins->dreg, s390_r1);
3441 case OP_IMUL_OVF_UN: {
3442 s390_lhi (code, s390_r0, 0);
3443 s390_lr (code, s390_r1, ins->sreg1);
3444 s390_mlr (code, s390_r0, ins->sreg2);
3445 s390_ltr (code, s390_r0, s390_r0);
3446 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3447 s390_lr (code, ins->dreg, s390_r1);
3451 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3452 s390_srda (code, s390_r0, 0, 32);
3453 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3454 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3455 s390_srl (code, s390_r0, 0, 31);
3456 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3457 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3458 s390_srl (code, s390_r13, 0, 31);
3459 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3460 s390_ar (code, s390_r0, s390_r13);
3461 s390_st (code, s390_r0, 0, ins->dreg, 0);
3462 s390_st (code, s390_r1, 0, ins->dreg, 4);
3466 if (s390_is_imm16(ins->inst_c0)) {
3467 s390_lhi (code, ins->dreg, ins->inst_c0);
3469 s390_basr (code, s390_r13, 0);
3471 s390_word (code, ins->inst_c0);
3472 s390_l (code, ins->dreg, 0, s390_r13, 4);
3477 s390_basr (code, s390_r13, 0);
3479 mono_add_patch_info (cfg, code - cfg->native_code,
3480 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3481 s390_word (code, 0);
3482 s390_l (code,ins->dreg, 0, s390_r13, 4);
3485 case OP_JUMP_TABLE: {
3486 mono_add_patch_info (cfg, code - cfg->native_code,
3487 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3488 s390_basr (code, s390_r13, 0);
3490 s390_word (code, 0);
3491 s390_l (code, ins->dreg, 0, s390_r13, 4);
3494 case OP_ICONV_TO_I4:
3495 case OP_ICONV_TO_U4:
3497 if (ins->dreg != ins->sreg1) {
3498 s390_lr (code, ins->dreg, ins->sreg1);
3503 int saved = ins->sreg1;
3504 if (ins->sreg1 == s390_r2) {
3505 s390_lr (code, s390_r0, ins->sreg1);
3508 if (ins->sreg2 != s390_r2)
3509 s390_lr (code, s390_r2, ins->sreg2);
3510 if (saved != s390_r3)
3511 s390_lr (code, s390_r3, saved);
3515 if (ins->dreg != ins->sreg1) {
3516 s390_ldr (code, ins->dreg, ins->sreg1);
3520 case OP_S390_SETF4RET: {
3521 s390_ledbr (code, ins->dreg, ins->sreg1);
3525 if (s390_is_imm16 (ins->inst_offset)) {
3526 s390_lhi (code, s390_r13, ins->inst_offset);
3528 s390_bras (code, s390_r13, 0);
3530 s390_word (code, ins->inst_offset);
3531 s390_l (code, s390_r13, 0, s390_r13, 4);
3533 s390_ear (code, s390_r1, 0);
3534 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
3537 case OP_FCONV_TO_R4: {
3539 if (ins->dreg != ins->sreg1) {
3540 s390_ldr (code, ins->dreg, ins->sreg1);
3545 (ins->next->opcode != OP_FMOVE) &&
3546 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3547 s390_ledbr (code, ins->dreg, ins->sreg1);
3552 if (cfg->method->save_lmf)
3553 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3555 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3556 code = emit_load_volatile_registers(code, cfg);
3559 code = backUpStackPtr(cfg, code, STK_BASE);
3560 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3561 mono_add_patch_info (cfg, code - cfg->native_code,
3562 MONO_PATCH_INFO_METHOD_JUMP,
3564 s390_jcl (code, S390_CC_UN, 0);
3567 case OP_CHECK_THIS: {
3568 /* ensure ins->sreg1 is not NULL */
3569 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3573 int offset = cfg->sig_cookie + cfg->stack_usage;
3575 if (s390_is_imm16 (offset))
3576 s390_lhi (code, s390_r0, offset);
3578 s390_basr (code, s390_r13, 0);
3580 s390_word (code, offset);
3581 s390_l (code, s390_r0, 0, s390_r13, 0);
3583 s390_ar (code, s390_r0, cfg->frame_reg);
3584 s390_st (code, s390_r0, 0, ins->sreg1, 0);
3588 call = (MonoCallInst*)ins;
3589 if (ins->flags & MONO_INST_HAS_METHOD)
3590 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3593 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3595 s390_brasl (code, s390_r14, 0);
3596 if (call->signature->ret->type == MONO_TYPE_R4)
3597 s390_ldebr (code, s390_f0, s390_f0);
3605 call = (MonoCallInst*)ins;
3606 if (ins->flags & MONO_INST_HAS_METHOD)
3607 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3609 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3610 s390_brasl (code, s390_r14, 0);
3613 case OP_FCALL_REG: {
3614 call = (MonoCallInst*)ins;
3615 s390_lr (code, s390_r1, ins->sreg1);
3616 s390_basr (code, s390_r14, s390_r1);
3617 if (call->signature->ret->type == MONO_TYPE_R4)
3618 s390_ldebr (code, s390_f0, s390_f0);
3624 case OP_VOIDCALL_REG:
3626 s390_lr (code, s390_r1, ins->sreg1);
3627 s390_basr (code, s390_r14, s390_r1);
3630 case OP_LCALL_MEMBASE:
3631 case OP_VCALL_MEMBASE:
3632 case OP_VCALL2_MEMBASE:
3633 case OP_VOIDCALL_MEMBASE:
3634 case OP_FCALL_MEMBASE:
3635 case OP_CALL_MEMBASE: {
3636 call = (MonoCallInst*)ins;
3637 if (s390_is_uimm12(ins->inst_offset))
3638 s390_l (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3640 if (s390_is_imm16(ins->inst_offset)) {
3641 s390_lhi (code, s390_r13, ins->inst_offset);
3642 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3644 s390_basr (code, s390_r13, 0);
3646 s390_word (code, ins->inst_offset);
3647 s390_l (code, s390_r13, 0, s390_r13, 4);
3648 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3651 s390_basr (code, s390_r14, s390_r1);
3652 if (ins->opcode == OP_FCALL_MEMBASE && call->signature->ret->type == MONO_TYPE_R4)
3653 s390_ldebr (code, s390_f0, s390_f0);
3657 /*------------------------------------------*/
3658 /* To allocate space on the stack we have */
3659 /* to allow room for parameters passed in */
3660 /* calls, the backchain pointer and round */
3661 /* it to our stack alignment requirements */
3662 /*------------------------------------------*/
3663 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3664 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3665 s390_lr (code, s390_r1, ins->sreg1);
3666 if (ins->flags & MONO_INST_INIT)
3667 s390_lr (code, s390_r0, ins->sreg1);
3668 s390_ahi (code, s390_r1, 14);
3669 s390_srl (code, s390_r1, 0, 3);
3670 s390_sll (code, s390_r1, 0, 3);
3671 if (cfg->method->save_lmf) {
3672 /*----------------------------------*/
3673 /* we have to adjust lmf ebp value */
3674 /*----------------------------------*/
3675 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3677 s390_lr (code, s390_r13, cfg->frame_reg);
3678 if (s390_is_uimm16(lmfOffset))
3679 s390_ahi (code, s390_r13, lmfOffset);
3681 s390_basr (code, s390_r14, 0);
3683 s390_word (code, lmfOffset);
3684 s390_a (code, s390_r13, 0, s390_r14, 4);
3686 s390_lr (code, s390_r14, STK_BASE);
3687 s390_sr (code, s390_r14, s390_r1);
3688 s390_st (code, s390_r14, 0, s390_r13,
3689 G_STRUCT_OFFSET(MonoLMF, ebp));
3691 s390_l (code, s390_r13, 0, STK_BASE, 0);
3692 s390_sr (code, STK_BASE, s390_r1);
3693 s390_st (code, s390_r13, 0, STK_BASE, 0);
3694 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3695 s390_srl (code, ins->dreg, 0, 3);
3696 s390_sll (code, ins->dreg, 0, 3);
3697 if (ins->flags & MONO_INST_INIT) {
3698 s390_lr (code, s390_r1, s390_r0);
3699 s390_lr (code, s390_r0, ins->dreg);
3700 s390_lr (code, s390_r14, s390_r12);
3701 s390_lhi (code, s390_r13, 0);
3702 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3704 s390_lr (code, s390_r12, s390_r14);
3709 s390_lr (code, s390_r2, ins->sreg1);
3710 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3711 (gpointer)"mono_arch_throw_exception");
3712 s390_brasl (code, s390_r14, 0);
3716 s390_lr (code, s390_r2, ins->sreg1);
3717 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3718 (gpointer)"mono_arch_rethrow_exception");
3719 s390_brasl (code, s390_r14, 0);
3722 case OP_START_HANDLER: {
3723 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3724 if (s390_is_uimm12 (spvar->inst_offset)) {
3725 s390_st (code, s390_r14, 0,
3726 spvar->inst_basereg,
3727 spvar->inst_offset);
3729 s390_basr (code, s390_r13, 0);
3731 s390_word (code, spvar->inst_offset);
3732 s390_l (code, s390_r13, 0, s390_r13, 4);
3733 s390_st (code, s390_r14, s390_r13,
3734 spvar->inst_basereg, 0);
3738 case OP_ENDFILTER: {
3739 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3740 if (ins->sreg1 != s390_r2)
3741 s390_lr (code, s390_r2, ins->sreg1);
3742 if (s390_is_uimm12 (spvar->inst_offset)) {
3743 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3744 spvar->inst_offset);
3746 s390_basr (code, s390_r13, 0);
3748 s390_word (code, spvar->inst_offset);
3749 s390_l (code, s390_r13, 0, s390_r13, 4);
3750 s390_l (code, s390_r14, s390_r13,
3751 spvar->inst_basereg, 0);
3753 s390_br (code, s390_r14);
3756 case OP_ENDFINALLY: {
3757 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3758 if (s390_is_uimm12 (spvar->inst_offset)) {
3759 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3760 spvar->inst_offset);
3762 s390_basr (code, s390_r13, 0);
3764 s390_word (code, spvar->inst_offset);
3765 s390_l (code, s390_r13, 0, s390_r13, 4);
3766 s390_l (code, s390_r14, s390_r13,
3767 spvar->inst_basereg, 0);
3769 s390_br (code, s390_r14);
3772 case OP_CALL_HANDLER: {
3773 mono_add_patch_info (cfg, code-cfg->native_code,
3774 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3775 s390_brasl (code, s390_r14, 0);
3776 mono_cfg_add_try_hole (cfg, ins->inst_eh_block, code, bb);
3780 ins->inst_c0 = code - cfg->native_code;
3783 case OP_RELAXED_NOP:
3786 case OP_DUMMY_STORE:
3787 case OP_NOT_REACHED:
3792 EMIT_UNCOND_BRANCH(ins);
3795 s390_br (code, ins->sreg1);
3800 s390_lhi (code, ins->dreg, 1);
3802 s390_lhi (code, ins->dreg, 0);
3807 s390_lhi (code, ins->dreg, 1);
3809 s390_lhi (code, ins->dreg, 0);
3814 s390_lhi (code, ins->dreg, 1);
3816 s390_lhi (code, ins->dreg, 0);
3821 s390_lhi (code, ins->dreg, 1);
3823 s390_lhi (code, ins->dreg, 0);
3828 s390_lhi (code, ins->dreg, 1);
3830 s390_lhi (code, ins->dreg, 0);
3833 case OP_COND_EXC_EQ:
3834 case OP_COND_EXC_IEQ:
3835 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3837 case OP_COND_EXC_NE_UN:
3838 case OP_COND_EXC_INE_UN:
3839 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3841 case OP_COND_EXC_LT:
3842 case OP_COND_EXC_ILT:
3843 case OP_COND_EXC_LT_UN:
3844 case OP_COND_EXC_ILT_UN:
3845 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3847 case OP_COND_EXC_GT:
3848 case OP_COND_EXC_IGT:
3849 case OP_COND_EXC_GT_UN:
3850 case OP_COND_EXC_IGT_UN:
3851 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3853 case OP_COND_EXC_GE:
3854 case OP_COND_EXC_IGE:
3855 case OP_COND_EXC_GE_UN:
3856 case OP_COND_EXC_IGE_UN:
3857 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3859 case OP_COND_EXC_LE:
3860 case OP_COND_EXC_ILE:
3861 case OP_COND_EXC_LE_UN:
3862 case OP_COND_EXC_ILE_UN:
3863 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3865 case OP_COND_EXC_OV:
3866 case OP_COND_EXC_IOV:
3867 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3869 case OP_COND_EXC_NO:
3870 case OP_COND_EXC_INO:
3871 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3874 case OP_COND_EXC_IC:
3875 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3877 case OP_COND_EXC_NC:
3878 case OP_COND_EXC_INC:
3879 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3882 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3885 EMIT_COND_BRANCH (ins, S390_CC_NE);
3889 EMIT_COND_BRANCH (ins, S390_CC_LT);
3893 EMIT_COND_BRANCH (ins, S390_CC_GT);
3897 EMIT_COND_BRANCH (ins, S390_CC_GE);
3901 EMIT_COND_BRANCH (ins, S390_CC_LE);
3904 /* floating point opcodes */
3906 if (*((float *) ins->inst_p0) == 0) {
3907 s390_lzdr (code, ins->dreg);
3909 s390_basr (code, s390_r13, 0);
3911 s390_word (code, ins->inst_p0);
3912 s390_l (code, s390_r13, 0, s390_r13, 4);
3913 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3918 if (*((float *) ins->inst_p0) == 0) {
3919 s390_lzdr (code, ins->dreg);
3921 s390_basr (code, s390_r13, 0);
3923 s390_word (code, ins->inst_p0);
3924 s390_l (code, s390_r13, 0, s390_r13, 4);
3925 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3929 case OP_STORER8_MEMBASE_REG: {
3930 if (s390_is_uimm12(ins->inst_offset)) {
3931 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3933 s390_basr (code, s390_r13, 0);
3935 s390_word (code, ins->inst_offset);
3936 s390_l (code, s390_r13, 0, s390_r13, 4);
3937 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3941 case OP_LOADR8_MEMBASE: {
3942 if (s390_is_uimm12(ins->inst_offset)) {
3943 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3945 s390_basr (code, s390_r13, 0);
3947 s390_word (code, ins->inst_offset);
3948 s390_l (code, s390_r13, 0, s390_r13, 4);
3949 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3953 case OP_STORER4_MEMBASE_REG: {
3954 if (s390_is_uimm12(ins->inst_offset)) {
3955 s390_ledbr(code, s390_f15, ins->sreg1);
3956 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
3958 s390_basr (code, s390_r13, 0);
3960 s390_word (code, ins->inst_offset);
3961 s390_l (code, s390_r13, 0, s390_r13, 4);
3962 s390_ledbr(code, s390_f15, ins->sreg1);
3963 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
3967 case OP_LOADR4_MEMBASE: {
3968 if (s390_is_uimm12(ins->inst_offset)) {
3969 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3971 s390_basr (code, s390_r13, 0);
3973 s390_word (code, ins->inst_offset);
3974 s390_l (code, s390_r13, 0, s390_r13, 4);
3975 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3979 case OP_ICONV_TO_R_UN: {
3980 s390_cdfbr (code, ins->dreg, ins->sreg1);
3981 s390_ltr (code, ins->sreg1, ins->sreg1);
3982 s390_jnl (code, 12);
3983 s390_basr (code, s390_r13, 0);
3985 s390_word (code, 0x41f00000);
3986 s390_word (code, 0);
3987 s390_adb (code, ins->dreg, 0, s390_r13, 4);
3990 case OP_ICONV_TO_R4: {
3991 s390_cdfbr (code, ins->dreg, ins->sreg1);
3994 case OP_ICONV_TO_R8: {
3995 s390_cdfbr (code, ins->dreg, ins->sreg1);
3998 case OP_FCONV_TO_I1:
3999 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4001 case OP_FCONV_TO_U1:
4002 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4004 case OP_FCONV_TO_I2:
4005 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4007 case OP_FCONV_TO_U2:
4008 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4010 case OP_FCONV_TO_I4:
4012 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4014 case OP_FCONV_TO_U4:
4016 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4018 case OP_FCONV_TO_I8:
4019 case OP_FCONV_TO_U8:
4020 g_assert_not_reached ();
4021 /* Implemented as helper calls */
4023 case OP_LCONV_TO_R_UN:
4024 g_assert_not_reached ();
4025 /* Implemented as helper calls */
4027 case OP_LCONV_TO_OVF_I:
4028 case OP_LCONV_TO_OVF_I4_2: {
4029 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4031 s390_ltr (code, ins->sreg1, ins->sreg1);
4032 s390_jnl (code, 0); CODEPTR(code, o[0]);
4033 s390_ltr (code, ins->sreg2, ins->sreg2);
4034 s390_jnl (code, 0); CODEPTR(code, o[1]);
4035 s390_lhi (code, s390_r13, -1);
4036 s390_cr (code, ins->sreg2, s390_r13);
4037 s390_jnz (code, 0); CODEPTR(code, o[2]);
4038 s390_j (code, 0); CODEPTR(code, o[3]);
4039 PTRSLOT(code, o[0]);
4040 s390_ltr (code, ins->sreg2, ins->sreg2);
4041 s390_jz (code, 0); CODEPTR(code, o[4]);
4042 PTRSLOT(code, o[1]);
4043 PTRSLOT(code, o[2]);
4044 mono_add_patch_info (cfg, code - cfg->native_code,
4045 MONO_PATCH_INFO_EXC, "OverflowException");
4046 s390_brasl (code, s390_r14, 0);
4047 PTRSLOT(code, o[3]);
4048 PTRSLOT(code, o[4]);
4049 if (ins->dreg != ins->sreg1)
4050 s390_lr (code, ins->dreg, ins->sreg1);
4054 s390_sqdbr (code, ins->dreg, ins->sreg1);
4059 s390_adbr (code, ins->dreg, src2);
4063 CHECK_SRCDST_NCOM_F;
4064 s390_sdbr (code, ins->dreg, src2);
4069 s390_mdbr (code, ins->dreg, src2);
4073 CHECK_SRCDST_NCOM_F;
4074 s390_ddbr (code, ins->dreg, src2);
4078 s390_lcdbr (code, ins->dreg, ins->sreg1);
4082 CHECK_SRCDST_NCOM_F;
4083 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4087 s390_cdbr (code, ins->sreg1, ins->sreg2);
4091 s390_cdbr (code, ins->sreg1, ins->sreg2);
4092 s390_lhi (code, ins->dreg, 1);
4094 s390_lhi (code, ins->dreg, 0);
4098 s390_cdbr (code, ins->sreg1, ins->sreg2);
4099 s390_lhi (code, ins->dreg, 1);
4101 s390_lhi (code, ins->dreg, 0);
4105 s390_cdbr (code, ins->sreg1, ins->sreg2);
4106 s390_lhi (code, ins->dreg, 1);
4108 s390_lhi (code, ins->dreg, 0);
4112 s390_cdbr (code, ins->sreg1, ins->sreg2);
4113 s390_lhi (code, ins->dreg, 1);
4115 s390_lhi (code, ins->dreg, 0);
4119 s390_cdbr (code, ins->sreg1, ins->sreg2);
4120 s390_lhi (code, ins->dreg, 1);
4122 s390_lhi (code, ins->dreg, 0);
4127 s390_jo (code, 0); CODEPTR(code, o);
4128 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4133 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4137 s390_jo (code, 0); CODEPTR(code, o);
4138 EMIT_COND_BRANCH (ins, S390_CC_LT);
4143 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4147 s390_jo (code, 0); CODEPTR(code, o);
4148 EMIT_COND_BRANCH (ins, S390_CC_GT);
4153 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4157 s390_jo (code, 0); CODEPTR(code, o);
4158 EMIT_COND_BRANCH (ins, S390_CC_GE);
4163 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4167 s390_jo (code, 0); CODEPTR(code, o);
4168 EMIT_COND_BRANCH (ins, S390_CC_LE);
4173 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4177 s390_lhi (code, s390_r13, 0x7f);
4178 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4179 s390_jz (code, 0); CODEPTR(code, o);
4180 mono_add_patch_info (cfg, code - cfg->native_code,
4181 MONO_PATCH_INFO_EXC, "ArithmeticException");
4182 s390_brasl (code, s390_r14,0);
4186 case OP_S390_MOVE: {
4187 if (ins->backend.size > 0) {
4188 if (ins->backend.size <= 256) {
4189 s390_mvc (code, ins->backend.size, ins->dreg,
4190 ins->inst_offset, ins->sreg1, ins->inst_imm);
4192 s390_lr (code, s390_r0, ins->dreg);
4193 if (s390_is_imm16 (ins->inst_offset)) {
4194 s390_ahi (code, s390_r0, ins->inst_offset);
4196 s390_basr (code, s390_r13, 0);
4198 s390_long (code, ins->inst_offset);
4199 s390_a (code, s390_r0, 0, s390_r13, 4);
4201 s390_lr (code, s390_r12, ins->sreg1);
4202 if (s390_is_imm16 (ins->inst_imm)) {
4203 s390_ahi (code, s390_r12, ins->inst_imm);
4205 s390_basr (code, s390_r13, 0);
4207 s390_long (code, ins->inst_imm);
4208 s390_a (code, s390_r12, 0, s390_r13, 4);
4210 if (s390_is_imm16 (ins->backend.size)) {
4211 s390x_lhi (code, s390_r1, ins->backend.size);
4213 s390_basr (code, s390_r13, 0);
4215 s390_long (code, ins->backend.size);
4216 s390_l (code, s390_r1, 0, s390_r13, 4);
4218 s390_lr (code, s390_r1, ins->backend.size);
4219 s390_lr (code, s390_r13, s390_r1);
4220 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4225 case OP_ATOMIC_ADD_I4: {
4226 s390_lr (code, s390_r1, ins->sreg2);
4227 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4228 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4229 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4230 s390_jnz (code, -7);
4231 s390_lr (code, ins->dreg, s390_r1);
4234 case OP_ATOMIC_ADD_NEW_I4: {
4235 s390_lr (code, s390_r1, ins->sreg2);
4236 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4237 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4238 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4239 s390_jnz (code, -7);
4240 s390_lr (code, ins->dreg, s390_r1);
4243 case OP_ATOMIC_EXCHANGE_I4: {
4244 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4245 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4246 s390_jnz (code, -4);
4247 s390_lr (code, ins->dreg, s390_r0);
4250 case OP_S390_BKCHAIN: {
4251 s390_lr (code, ins->dreg, ins->sreg1);
4252 if (s390_is_imm16 (cfg->stack_offset)) {
4253 s390_ahi (code, ins->dreg, cfg->stack_offset);
4255 s390_basr (code, s390_r13, 0);
4257 s390_word (code, cfg->stack_offset);
4258 s390_a (code, ins->dreg, 0, s390_r13, 4);
4261 case OP_MEMORY_BARRIER: {
4265 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4266 g_assert_not_reached ();
4269 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4270 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4271 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4272 g_assert_not_reached ();
4278 last_offset = offset;
4281 cfg->code_len = code - cfg->native_code;
4284 /*========================= End of Function ========================*/
4286 /*------------------------------------------------------------------*/
4288 /* Name - mono_arch_register_lowlevel_calls */
4290 /* Function - Register routines to help with --trace operation. */
4292 /*------------------------------------------------------------------*/
4295 mono_arch_register_lowlevel_calls (void)
4297 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4300 /*========================= End of Function ========================*/
4302 /*------------------------------------------------------------------*/
4304 /* Name - mono_arch_patch_code */
4306 /* Function - Process the patch data created during the */
4307 /* instruction build process. This resolves jumps, */
4308 /* calls, variables etc. */
4310 /*------------------------------------------------------------------*/
4313 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4314 guint8 *code, MonoJumpInfo *ji, MonoCodeManager *dyn_code_mp, gboolean run_cctors)
4316 MonoJumpInfo *patch_info;
4318 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4319 unsigned char *ip = patch_info->ip.i + code;
4320 gconstpointer target = NULL;
4322 target = mono_resolve_patch_target (method, domain, code,
4323 patch_info, run_cctors);
4325 switch (patch_info->type) {
4326 case MONO_PATCH_INFO_IP:
4327 case MONO_PATCH_INFO_EXC_NAME:
4328 case MONO_PATCH_INFO_LDSTR:
4329 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4330 case MONO_PATCH_INFO_LDTOKEN:
4331 case MONO_PATCH_INFO_EXC:
4333 case MONO_PATCH_INFO_SWITCH:
4334 /*----------------------------------*/
4335 /* ip points at the basr r13,0/j +4 */
4336 /* instruction the vtable value */
4337 /* follows this (i.e. ip+6) */
4338 /*----------------------------------*/
4339 *((gconstpointer *)(ip+6)) = target;
4342 case MONO_PATCH_INFO_METHODCONST:
4343 case MONO_PATCH_INFO_CLASS:
4344 case MONO_PATCH_INFO_IMAGE:
4345 case MONO_PATCH_INFO_FIELD:
4346 case MONO_PATCH_INFO_IID:
4347 target = S390_RELATIVE(target, ip);
4349 case MONO_PATCH_INFO_R4:
4350 case MONO_PATCH_INFO_R8:
4351 case MONO_PATCH_INFO_METHOD_REL:
4352 g_assert_not_reached ();
4355 target = S390_RELATIVE(target, ip);
4358 s390_patch (ip, (guint32) target);
4362 /*========================= End of Function ========================*/
4364 /*------------------------------------------------------------------*/
4366 /* Name - emit_load_volatile_registers */
4368 /* Function - Create the instruction sequence for loading the */
4369 /* parameter registers for use with the 'tail' op. */
4371 /* The register loading operations performed here */
4372 /* are the mirror of the store operations performed */
4373 /* in mono_arch_emit_prolog and need to be kept in */
4374 /* synchronization with it. */
4376 /*------------------------------------------------------------------*/
4379 emit_load_volatile_registers (guint8 * code, MonoCompile *cfg)
4381 MonoMethod *method = cfg->method;
4382 MonoMethodSignature *sig;
4387 sig = mono_method_signature (method);
4390 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4392 if (cinfo->struct_ret) {
4393 ArgInfo *ainfo = &cinfo->ret;
4394 inst = cfg->vret_addr;
4395 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4398 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4399 ArgInfo *ainfo = cinfo->args + i;
4400 inst = cfg->args [pos];
4402 if (inst->opcode == OP_REGVAR) {
4403 if (ainfo->regtype == RegTypeGeneral)
4404 s390_lr (code, ainfo->reg, inst->dreg);
4405 else if (ainfo->regtype == RegTypeFP) {
4406 if (inst->dreg != ainfo->reg) {
4407 if (ainfo->size == 4) {
4408 s390_ldebr (code, ainfo->reg, inst->dreg);
4410 s390_ldr (code, ainfo->reg, inst->dreg);
4414 else if (ainfo->regtype == RegTypeBase) {
4416 g_assert_not_reached ();
4418 if (ainfo->regtype == RegTypeGeneral) {
4419 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4420 g_assert_not_reached();
4421 switch (ainfo->size) {
4423 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4426 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4429 s390_lm (code, ainfo->reg, ainfo->reg + 1,
4430 inst->inst_basereg, inst->inst_offset);
4433 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4435 } else if (ainfo->regtype == RegTypeBase) {
4436 } else if (ainfo->regtype == RegTypeFP) {
4437 if (ainfo->size == 8)
4438 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4439 else if (ainfo->size == 4)
4440 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4442 g_assert_not_reached ();
4443 } else if (ainfo->regtype == RegTypeStructByVal) {
4444 if (ainfo->reg != STK_BASE) {
4445 switch (ainfo->size) {
4447 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4450 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4453 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4456 s390_lm (code, ainfo->reg, ainfo->reg+1, inst->inst_basereg, inst->inst_offset);
4460 } else if (ainfo->regtype == RegTypeStructByAddr) {
4461 if (ainfo->reg != STK_BASE) {
4462 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4465 g_assert_not_reached ();
4473 /*========================= End of Function ========================*/
4475 /*------------------------------------------------------------------*/
4477 /* Name - mono_arch_emit_prolog */
4479 /* Function - Create the instruction sequence for a function */
4482 /*------------------------------------------------------------------*/
4485 mono_arch_emit_prolog (MonoCompile *cfg)
4487 MonoMethod *method = cfg->method;
4489 MonoMethodSignature *sig;
4491 int alloc_size, pos, max_offset, i;
4497 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4500 cfg->code_size = 1024;
4501 cfg->native_code = code = g_malloc (cfg->code_size);
4503 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4505 if (cfg->arch.bkchain_reg != -1)
4506 s390_lr (code, cfg->arch.bkchain_reg, STK_BASE);
4508 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4509 cfg->used_int_regs |= 1 << 11;
4512 alloc_size = cfg->stack_offset;
4514 cfg->stack_usage = alloc_size;
4515 s390_lr (code, s390_r11, STK_BASE);
4516 if (s390_is_uimm16 (alloc_size)) {
4517 s390_ahi (code, STK_BASE, -alloc_size);
4519 int stackSize = alloc_size;
4520 while (stackSize > 32767) {
4521 s390_ahi (code, STK_BASE, -32767);
4524 s390_ahi (code, STK_BASE, -stackSize);
4526 s390_st (code, s390_r11, 0, STK_BASE, 0);
4528 if (cfg->frame_reg != STK_BASE)
4529 s390_lr (code, s390_r11, STK_BASE);
4531 /* compute max_offset in order to use short forward jumps
4532 * we always do it on s390 because the immediate displacement
4533 * for jumps is too small
4536 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4537 MonoInst *ins = bb->code;
4538 bb->max_offset = max_offset;
4540 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4543 MONO_BB_FOR_EACH_INS (bb, ins)
4544 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4547 /* load arguments allocated to register from the stack */
4548 sig = mono_method_signature (method);
4551 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4553 if (cinfo->struct_ret) {
4554 ArgInfo *ainfo = &cinfo->ret;
4555 inst = cfg->vret_addr;
4556 inst->backend.size = ainfo->vtsize;
4557 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4560 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4561 ArgInfo *ainfo = cinfo->args + i;
4562 inst = cfg->args [pos];
4564 if (inst->opcode == OP_VTARG_ADDR)
4565 inst = inst->inst_left;
4567 if (inst->opcode == OP_REGVAR) {
4568 if (ainfo->regtype == RegTypeGeneral)
4569 s390_lr (code, inst->dreg, ainfo->reg);
4570 else if (ainfo->regtype == RegTypeFP) {
4571 if (inst->dreg != ainfo->reg) {
4572 if (ainfo->size == 4) {
4573 s390_ledbr (code, inst->dreg, ainfo->reg);
4575 s390_ldr (code, inst->dreg, ainfo->reg);
4579 else if (ainfo->regtype == RegTypeBase) {
4580 s390_lr (code, s390_r13, STK_BASE);
4581 s390_ahi (code, s390_r13, alloc_size);
4582 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4584 g_assert_not_reached ();
4586 if (cfg->verbose_level > 2)
4587 g_print ("Argument %d assigned to register %s\n",
4588 pos, mono_arch_regname (inst->dreg));
4590 if (ainfo->regtype == RegTypeGeneral) {
4591 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4592 g_assert_not_reached();
4593 switch (ainfo->size) {
4595 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4598 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4601 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4602 inst->inst_basereg, inst->inst_offset);
4605 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4607 } else if (ainfo->regtype == RegTypeBase) {
4608 } else if (ainfo->regtype == RegTypeFP) {
4609 if (ainfo->size == 8)
4610 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4611 else if (ainfo->size == 4)
4612 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4614 g_assert_not_reached ();
4615 } else if (ainfo->regtype == RegTypeStructByVal) {
4616 int doffset = inst->inst_offset;
4618 if (ainfo->reg != STK_BASE)
4622 s390_lr (code, s390_r13, STK_BASE);
4623 s390_ahi (code, s390_r13, alloc_size);
4625 switch (ainfo->size) {
4627 if (ainfo->reg == STK_BASE)
4628 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4629 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4632 if (ainfo->reg == STK_BASE)
4633 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4634 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4637 if (ainfo->reg == STK_BASE)
4638 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4639 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4642 if (ainfo->reg == STK_BASE)
4643 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4644 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4647 } else if (ainfo->regtype == RegTypeStructByAddr) {
4648 if (ainfo->reg != STK_BASE)
4649 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4651 g_assert_not_reached ();
4656 if (method->save_lmf) {
4657 /*---------------------------------------------------------------*/
4658 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4659 /*---------------------------------------------------------------*/
4660 lmfOffset = alloc_size - sizeof(MonoLMF);
4662 s390_lr (code, s390_r13, cfg->frame_reg);
4663 if (s390_is_uimm16(lmfOffset))
4664 s390_ahi (code, s390_r13, lmfOffset);
4666 s390_basr (code, s390_r14, 0);
4668 s390_word (code, lmfOffset);
4669 s390_a (code, s390_r13, 0, s390_r14, 4);
4672 /*---------------------------------------------------------------*/
4673 /* Preserve the parameter registers while we fix up the lmf */
4674 /*---------------------------------------------------------------*/
4675 s390_stm (code, s390_r2, s390_r6, s390_r13,
4676 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4678 /*---------------------------------------------------------------*/
4679 /* On return from this call r2 have the address of the &lmf */
4680 /*---------------------------------------------------------------*/
4681 mono_add_patch_info (cfg, code - cfg->native_code,
4682 MONO_PATCH_INFO_INTERNAL_METHOD,
4683 (gpointer)"mono_get_lmf_addr");
4684 s390_brasl (code, s390_r14, 0);
4686 /*---------------------------------------------------------------*/
4687 /* Set lmf.lmf_addr = jit_tls->lmf */
4688 /*---------------------------------------------------------------*/
4689 s390_st (code, s390_r2, 0, s390_r13,
4690 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4692 /*---------------------------------------------------------------*/
4693 /* Get current lmf */
4694 /*---------------------------------------------------------------*/
4695 s390_l (code, s390_r0, 0, s390_r2, 0);
4697 /*---------------------------------------------------------------*/
4698 /* Set our lmf as the current lmf */
4699 /*---------------------------------------------------------------*/
4700 s390_st (code, s390_r13, 0, s390_r2, 0);
4702 /*---------------------------------------------------------------*/
4703 /* Have our lmf.previous_lmf point to the last lmf */
4704 /*---------------------------------------------------------------*/
4705 s390_st (code, s390_r0, 0, s390_r13,
4706 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4708 /*---------------------------------------------------------------*/
4709 /* save method info */
4710 /*---------------------------------------------------------------*/
4711 s390_basr (code, s390_r1, 0);
4713 s390_word (code, method);
4714 s390_l (code, s390_r1, 0, s390_r1, 4);
4715 s390_st (code, s390_r1, 0, s390_r13,
4716 G_STRUCT_OFFSET(MonoLMF, method));
4718 /*---------------------------------------------------------------*/
4719 /* save the current IP */
4720 /*---------------------------------------------------------------*/
4721 s390_st (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4722 s390_basr (code, s390_r1, 0);
4723 s390_la (code, s390_r1, 0, s390_r1, 0);
4724 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4726 /*---------------------------------------------------------------*/
4727 /* Save general and floating point registers */
4728 /*---------------------------------------------------------------*/
4729 s390_stm (code, s390_r2, s390_r12, s390_r13,
4730 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4731 for (i = 0; i < 16; i++) {
4732 s390_std (code, i, 0, s390_r13,
4733 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4736 /*---------------------------------------------------------------*/
4737 /* Restore the parameter registers now that we've set up the lmf */
4738 /*---------------------------------------------------------------*/
4739 s390_lm (code, s390_r2, s390_r6, s390_r13,
4740 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4744 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4746 cfg->code_len = code - cfg->native_code;
4748 g_assert (cfg->code_len < cfg->code_size);
4753 /*========================= End of Function ========================*/
4755 /*------------------------------------------------------------------*/
4757 /* Name - mono_arch_emit_epilog */
4759 /* Function - Emit the instructions for a function epilog. */
4761 /*------------------------------------------------------------------*/
4764 mono_arch_emit_epilog (MonoCompile *cfg)
4766 MonoMethod *method = cfg->method;
4769 int max_epilog_size = 96;
4771 if (cfg->method->save_lmf)
4772 max_epilog_size += 128;
4774 if (mono_jit_trace_calls != NULL)
4775 max_epilog_size += 128;
4777 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4778 max_epilog_size += 128;
4780 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4781 cfg->code_size *= 2;
4782 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4783 cfg->stat_code_reallocs++;
4786 code = cfg->native_code + cfg->code_len;
4788 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4789 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4793 if (method->save_lmf)
4794 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4796 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4797 s390_l (code, STK_BASE, 0, STK_BASE, 0);
4799 code = backUpStackPtr(cfg, code, STK_BASE);
4801 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4802 s390_br (code, s390_r14);
4804 cfg->code_len = code - cfg->native_code;
4806 g_assert (cfg->code_len < cfg->code_size);
4810 /*========================= End of Function ========================*/
4812 /*------------------------------------------------------------------*/
4814 /* Name - mono_arch_emit_exceptions */
4816 /* Function - Emit the blocks to handle exception conditions. */
4818 /*------------------------------------------------------------------*/
4821 mono_arch_emit_exceptions (MonoCompile *cfg)
4823 MonoJumpInfo *patch_info;
4829 MonoClass *exc_classes [MAX_EXC];
4830 guint8 *exc_throw_start [MAX_EXC];
4832 for (patch_info = cfg->patch_info;
4834 patch_info = patch_info->next) {
4835 if (patch_info->type == MONO_PATCH_INFO_EXC)
4839 code_size = exc_count * 26;
4841 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4842 cfg->code_size *= 2;
4843 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4844 cfg->stat_code_reallocs++;
4847 code = cfg->native_code + cfg->code_len;
4849 /*---------------------------------------------------------------------*/
4850 /* Add code to raise exceptions */
4851 /*---------------------------------------------------------------------*/
4852 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4853 switch (patch_info->type) {
4854 case MONO_PATCH_INFO_EXC: {
4855 guint8 *ip = patch_info->ip.i + cfg->native_code;
4856 MonoClass *exc_class;
4859 /*-----------------------------------------------------*/
4860 /* Patch the branch in epilog to come here */
4861 /*-----------------------------------------------------*/
4862 s390_patch (ip + 2, (guint32) (S390_RELATIVE(code,ip)));
4864 exc_class = mono_class_from_name (mono_defaults.corlib,
4866 patch_info->data.name);
4867 g_assert (exc_class);
4868 throw_ip = patch_info->ip.i;
4870 for (iExc = 0; iExc < nThrows; ++iExc)
4871 if (exc_classes [iExc] == exc_class)
4874 if (iExc < nThrows) {
4875 s390_jcl (code, S390_CC_UN, (guint32) exc_throw_start [iExc]);
4876 patch_info->type = MONO_PATCH_INFO_NONE;
4879 if (nThrows < MAX_EXC) {
4880 exc_classes [nThrows] = exc_class;
4881 exc_throw_start [nThrows] = code;
4884 /*---------------------------------------------*/
4885 /* Patch the parameter passed to the handler */
4886 /*---------------------------------------------*/
4887 s390_basr (code, s390_r13, 0);
4889 s390_word (code, patch_info->data.target);
4890 /*---------------------------------------------*/
4891 /* Load return address & parameter register */
4892 /*---------------------------------------------*/
4893 s390_larl (code, s390_r14, (gsize)S390_RELATIVE((patch_info->ip.i +
4894 cfg->native_code + 8), code));
4895 s390_l (code, s390_r2, 0, s390_r13, 4);
4896 /*---------------------------------------------*/
4897 /* Reuse the current patch to set the jump */
4898 /*---------------------------------------------*/
4899 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4900 patch_info->data.name = "mono_arch_throw_exception_by_name";
4901 patch_info->ip.i = code - cfg->native_code;
4902 s390_jcl (code, S390_CC_UN, 0);
4912 cfg->code_len = code - cfg->native_code;
4914 g_assert (cfg->code_len < cfg->code_size);
4918 /*========================= End of Function ========================*/
4920 /*------------------------------------------------------------------*/
4922 /* Name - mono_arch_finish_init */
4924 /* Function - Setup the JIT's Thread Level Specific Data. */
4926 /*------------------------------------------------------------------*/
4929 mono_arch_finish_init (void)
4933 __asm__ ("\tear\t%r1,0\n"
4940 : "=r" (appdomain_tls_offset),
4941 "=r" (thread_tls_offset),
4942 "=r" (lmf_tls_offset)
4943 : "r" (&tls_appdomain),
4944 "r" (&tls_current_object),
4945 "r" (&mono_lmf_addr)
4950 if (!lmf_addr_key_inited) {
4951 lmf_addr_key_inited = TRUE;
4952 pthread_key_create (&lmf_addr_key, NULL);
4954 pthread_setspecific (lmf_addr_key, &tls->lmf);
4958 /*========================= End of Function ========================*/
4960 /*------------------------------------------------------------------*/
4962 /* Name - mono_arch_free_jit_tls_data */
4964 /* Function - Free tls data. */
4966 /*------------------------------------------------------------------*/
4969 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4973 /*========================= End of Function ========================*/
4975 /*------------------------------------------------------------------*/
4977 /* Name - mono_arch_emit_inst_for_method */
4979 /*------------------------------------------------------------------*/
4982 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
4987 /*========================= End of Function ========================*/
4989 /*------------------------------------------------------------------*/
4991 /* Name - mono_arch_decompose_opts */
4993 /*------------------------------------------------------------------*/
4996 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
4998 switch (ins->opcode) {
5000 ins->opcode = OP_S390_ISUB_OVF;
5002 case OP_ISUB_OVF_UN:
5003 ins->opcode = OP_S390_ISUB_OVF_UN;
5006 ins->opcode = OP_S390_IADD_OVF;
5008 case OP_IADD_OVF_UN:
5009 ins->opcode = OP_S390_IADD_OVF_UN;
5016 /*========================= End of Function ========================*/
5018 /*------------------------------------------------------------------*/
5020 /* Name - mono_arch_decompose_long_opts */
5022 /*------------------------------------------------------------------*/
5025 mono_arch_decompose_long_opts (MonoCompile *cfg, MonoInst *ins)
5027 // The generic code seems to work for OP_LSUB fine on s390, why is a different
5028 // implementation needed ? gcc also seems to use the different implementation.
5029 // FIXME: What about the other OP_L opcodes below ?
5031 switch (ins->opcode) {
5033 case OP_LADD_OVF_UN:
5035 case OP_LSUB_OVF_UN: {
5038 switch (ins->opcode) {
5040 opcode = OP_S390_LADD;
5043 opcode = OP_S390_LADD_OVF;
5045 case OP_LADD_OVF_UN:
5046 opcode = OP_S390_LADD_OVF_UN;
5049 opcode = OP_S390_LSUB;
5052 opcode = OP_S390_LSUB_OVF;
5054 case OP_LSUB_OVF_UN:
5055 opcode = OP_S390_LSUB_OVF_UN;
5058 g_assert_not_reached ();
5061 /* These hard regs make ssa crazy */
5062 cfg->disable_ssa = TRUE;
5063 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r0, ins->sreg1 + 1);
5064 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r1, ins->sreg1 + 2);
5065 MONO_EMIT_NEW_BIALU (cfg, opcode, ins->dreg, ins->sreg2 + 1, ins->sreg2 + 2);
5070 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5071 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5072 MONO_EMIT_NEW_BIALU (cfg, OP_LADD, ins->dreg, ins->sreg1, dreg);
5077 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5078 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5079 MONO_EMIT_NEW_BIALU (cfg, OP_LSUB, ins->dreg, ins->sreg1, dreg);
5084 MONO_EMIT_NEW_BIALU (cfg, OP_S390_LNEG, ins->dreg, ins->sreg1 + 1, ins->sreg1 + 2);
5089 ins->opcode = OP_S390_ISUB_OVF;
5091 case OP_ISUB_OVF_UN:
5092 ins->opcode = OP_S390_ISUB_OVF_UN;
5099 /*========================= End of Function ========================*/
5101 /*------------------------------------------------------------------*/
5103 /* Name - mono_arch_print_tree */
5105 /* Function - Print platform-specific opcode details. */
5107 /* Returns - 1 - opcode details have been printed */
5108 /* 0 - opcode details have not been printed */
5110 /*------------------------------------------------------------------*/
5113 mono_arch_print_tree (MonoInst *tree, int arity)
5117 switch (tree->opcode) {
5118 case OP_S390_LOADARG:
5119 case OP_S390_ARGREG:
5120 case OP_S390_ARGPTR:
5121 printf ("[0x%lx(%s)]", tree->inst_offset,
5122 mono_arch_regname (tree->inst_basereg));
5125 case OP_S390_STKARG:
5126 printf ("[0x%lx(previous_frame)]",
5131 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5132 tree->inst_offset, tree->backend.size,
5133 mono_arch_regname(tree->dreg), tree->inst_imm,
5134 mono_arch_regname(tree->sreg1));
5137 case OP_S390_SETF4RET:
5139 mono_arch_fregname (tree->dreg),
5140 mono_arch_fregname (tree->sreg1));
5144 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5146 mono_arch_regname (tree->sreg1));
5149 case OP_S390_BKCHAIN:
5150 printf ("[previous_frame(%s)]",
5151 mono_arch_regname (tree->sreg1));
5160 /*========================= End of Function ========================*/
5162 /*------------------------------------------------------------------*/
5164 /* Name - mono_arch_regalloc_cost */
5166 /* Function - Determine the cost, in the number of memory */
5167 /* references, of the action of allocating the var- */
5168 /* iable VMV into a register during global register */
5171 /* Returns - Cost */
5173 /*------------------------------------------------------------------*/
5176 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5182 /*========================= End of Function ========================*/
5184 /*------------------------------------------------------------------*/
5186 /* Name - mono_arch_get_domain_intrinsic */
5192 /*------------------------------------------------------------------*/
5195 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5199 if (appdomain_tls_offset == -1)
5202 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5203 ins->inst_offset = appdomain_tls_offset;
5207 /*========================= End of Function ========================*/
5209 /*------------------------------------------------------------------*/
5211 /* Name - mono_arch_flush_register_windows */
5217 /*------------------------------------------------------------------*/
5220 mono_arch_flush_register_windows (void)
5224 /*========================= End of Function ========================*/
5226 /*------------------------------------------------------------------*/
5228 /* Name - mono_arch_get_lmf_addr */
5234 /*------------------------------------------------------------------*/
5237 mono_arch_get_lmf_addr (void)
5239 return pthread_getspecific (lmf_addr_key);
5243 /*========================= End of Function ========================*/
5245 /*------------------------------------------------------------------*/
5247 /* Name - mono_arch_get_patch_offset */
5249 /* Function - Dummy entry point until s390x supports aot. */
5251 /* Returns - Offset for patch. */
5253 /*------------------------------------------------------------------*/
5256 mono_arch_get_patch_offset (guint8 *code)
5261 /*========================= End of Function ========================*/
5263 /*------------------------------------------------------------------*/
5265 /* Name - mono_arch_context_get_int_reg. */
5267 /* Function - Dummy entry point until s390x supports aot. */
5269 /* Returns - Pointer to intreg. */
5271 /*------------------------------------------------------------------*/
5274 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5276 /* FIXME: implement */
5277 g_assert_not_reached ();
5281 /*========================= End of Function ========================*/