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); \
112 tmpr = mono_alloc_preg (cfg); \
113 MONO_EMIT_NEW_ICONST(cfg,tmpr,size); \
115 inst->inst_offset = offset; \
117 inst->inst_imm = imm; \
118 inst->sreg2 = tmpr; \
120 if (s390_is_uimm12(offset)) { \
122 inst->inst_offset = offset; \
124 dReg = mono_alloc_preg (cfg); \
125 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
126 dReg, dest, offset); \
128 inst->inst_offset = 0; \
130 if (s390_is_uimm12(imm)) { \
132 inst->inst_imm = imm; \
134 sReg = mono_alloc_preg (cfg); \
135 MONO_EMIT_NEW_BIALU_IMM(cfg, OP_ADD_IMM, \
137 inst->sreg1 = sReg; \
138 inst->inst_imm = 0; \
141 inst->opcode = OP_S390_MOVE; \
142 inst->backend.size = size; \
143 MONO_ADD_INS (cfg->cbb, inst); \
146 #define MONO_OUTPUT_VTR(cfg, size, dr, sr, so) do { \
147 int reg = mono_alloc_preg (cfg); \
150 MONO_EMIT_NEW_ICONST(cfg, reg, 0); \
151 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
154 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
156 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
159 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
161 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
164 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
166 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
169 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
171 mono_call_inst_add_outarg_reg(cfg, call, reg, dr, FALSE); \
172 reg = mono_alloc_preg (cfg); \
173 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOAD_MEMBASE, \
174 reg, sr, so + sizeof (guint32)); \
175 mono_call_inst_add_outarg_reg(cfg, call, reg, dr + 1, FALSE); \
180 #define MONO_OUTPUT_VTS(cfg, size, dr, dx, sr, so) do { \
184 tmpr = mono_alloc_preg (cfg); \
185 MONO_EMIT_NEW_ICONST(cfg, tmpr, 0); \
186 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
190 tmpr = mono_alloc_preg (cfg); \
191 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU1_MEMBASE, \
193 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
197 tmpr = mono_alloc_preg (cfg); \
198 MONO_EMIT_NEW_LOAD_MEMBASE_OP(cfg, OP_LOADU2_MEMBASE, \
200 MONO_EMIT_NEW_STORE_MEMBASE(cfg, OP_STORE_MEMBASE_REG, \
205 MONO_EMIT_NEW_MOVE (cfg, dr, dx, sr, so, size); \
211 #define DEBUG(a) if (cfg->verbose_level > 1) a
215 #define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
217 #define MAX (a, b) ((a) > (b) ? (a) : (b))
219 /*========================= End of Defines =========================*/
221 /*------------------------------------------------------------------*/
222 /* I n c l u d e s */
223 /*------------------------------------------------------------------*/
228 #include <mono/metadata/appdomain.h>
229 #include <mono/metadata/debug-helpers.h>
230 #include <mono/metadata/profiler-private.h>
231 #include <mono/utils/mono-math.h>
233 #include "mini-s390.h"
234 #include "cpu-s390.h"
235 #include "jit-icalls.h"
238 /*========================= End of Includes ========================*/
240 /*------------------------------------------------------------------*/
241 /* T y p e d e f s */
242 /*------------------------------------------------------------------*/
254 /*------------------------------------------------------------------*/
255 /* Used by the instrument_emit_epilog */
256 /*------------------------------------------------------------------*/
267 typedef struct InstList InstList;
281 RegTypeStructByValInFP,
286 gint32 offset; /* offset from caller's stack */
287 gint32 offparm; /* offset from callee's stack */
288 guint16 vtsize; /* in param area */
290 ArgStorage regtype; /* See RegType* */
291 guint32 size; /* Size of structure used by RegTypeStructByVal */
306 gint32 gr[5]; /* R2-R6 */
307 gdouble fp[3]; /* F0-F2 */
308 } __attribute__ ((packed)) RegParm;
310 /*========================= End of Typedefs ========================*/
312 /*------------------------------------------------------------------*/
313 /* P r o t o t y p e s */
314 /*------------------------------------------------------------------*/
316 static void indent (int);
317 static guint8 * backUpStackPtr(MonoCompile *, guint8 *, gint);
318 static void decodeParm (MonoType *, void *, int);
319 static void enter_method (MonoMethod *, RegParm *, char *);
320 static void leave_method (MonoMethod *, ...);
321 static gboolean is_regsize_var (MonoType *);
322 static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
323 static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
324 static inline void add_float (guint *, size_data *, ArgInfo *);
325 static CallInfo * get_call_info (MonoCompile *, MonoMemPool *, MonoMethodSignature *, gboolean);
326 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
327 gpointer mono_arch_get_lmf_addr (void);
328 static guint8 * emit_load_volatile_registers(guint8 *, MonoCompile *);
329 static void emit_sig_cookie (MonoCompile *, MonoCallInst *, CallInfo *);
331 /*========================= End of Prototypes ======================*/
333 /*------------------------------------------------------------------*/
334 /* G l o b a l V a r i a b l e s */
335 /*------------------------------------------------------------------*/
337 int mono_exc_esp_offset = 0;
339 static int indent_level = 0;
341 static gboolean tls_offset_inited = FALSE;
343 static int appdomain_tls_offset = -1,
344 thread_tls_offset = -1;
346 pthread_key_t lmf_addr_key;
348 gboolean lmf_addr_key_inited = FALSE;
352 extern __thread MonoDomain *tls_appdomain;
353 extern __thread MonoThread *tls_current_object;
354 extern __thread gpointer mono_lmf_addr;
358 /*====================== End of Global Variables ===================*/
360 /*------------------------------------------------------------------*/
362 /* Name - mono_arch_regname */
364 /* Function - Returns the name of the register specified by */
365 /* the input parameter. */
367 /*------------------------------------------------------------------*/
370 mono_arch_regname (int reg) {
371 static const char * rnames[] = {
372 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
373 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
374 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
378 if (reg >= 0 && reg < 16)
384 /*========================= End of Function ========================*/
386 /*------------------------------------------------------------------*/
388 /* Name - mono_arch_fregname */
390 /* Function - Returns the name of the register specified by */
391 /* the input parameter. */
393 /*------------------------------------------------------------------*/
396 mono_arch_fregname (int reg) {
397 static const char * rnames[] = {
398 "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
399 "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
400 "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
404 if (reg >= 0 && reg < 16)
410 /*========================= End of Function ========================*/
412 /*------------------------------------------------------------------*/
414 /* Name - arch_get_argument_info */
416 /* Function - Gathers information on parameters such as size, */
417 /* alignment, and padding. arg_info should be large */
418 /* enough to hold param_count + 1 entries. */
420 /* Parameters - @csig - Method signature */
421 /* @param_count - No. of parameters to consider */
422 /* @arg_info - An array to store the result info */
424 /* Returns - Size of the activation frame */
426 /*------------------------------------------------------------------*/
429 mono_arch_get_argument_info (MonoMethodSignature *csig,
431 MonoJitArgumentInfo *arg_info)
433 int k, frame_size = 0;
434 int size, align, pad;
437 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
438 frame_size += sizeof (gpointer);
442 arg_info [0].offset = offset;
445 frame_size += sizeof (gpointer);
449 arg_info [0].size = frame_size;
451 for (k = 0; k < param_count; k++) {
454 size = mono_type_native_stack_size (csig->params [k], &align);
456 size = mini_type_stack_size (NULL, csig->params [k], &align);
458 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
459 arg_info [k].pad = pad;
461 arg_info [k + 1].pad = 0;
462 arg_info [k + 1].size = size;
464 arg_info [k + 1].offset = offset;
468 align = MONO_ARCH_FRAME_ALIGNMENT;
469 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
470 arg_info [k].pad = pad;
475 /*========================= End of Function ========================*/
477 /*------------------------------------------------------------------*/
479 /* Name - retFitsInReg. */
481 /* Function - Determines if a value can be returned in one or */
484 /*------------------------------------------------------------------*/
486 static inline gboolean
487 retFitsInReg(guint32 size)
502 /*========================= End of Function ========================*/
504 /*------------------------------------------------------------------*/
506 /* Name - backStackPtr. */
508 /* Function - Restore Stack Pointer to previous frame. */
510 /*------------------------------------------------------------------*/
512 static inline guint8 *
513 backUpStackPtr(MonoCompile *cfg, guint8 *code, gint framePtr)
515 int stackSize = cfg->stack_usage;
517 if (s390_is_uimm16 (cfg->stack_usage)) {
518 s390_ahi (code, framePtr, cfg->stack_usage);
520 while (stackSize > 32767) {
521 s390_ahi (code, framePtr, 32767);
524 s390_ahi (code, framePtr, stackSize);
529 /*========================= End of Function ========================*/
531 /*------------------------------------------------------------------*/
535 /* Function - Perform nice indenting to current level */
537 /*------------------------------------------------------------------*/
543 indent_level += diff;
550 indent_level += diff;
553 /*========================= End of Function ========================*/
555 /*------------------------------------------------------------------*/
557 /* Name - decodeParm */
559 /* Function - Decode a parameter for the trace. */
561 /*------------------------------------------------------------------*/
564 decodeParm(MonoType *type, void *curParm, int size)
569 printf("[BYREF:%p], ", *((char **) curParm));
571 simpleType = mono_type_get_underlying_type(type)->type;
573 switch (simpleType) {
575 printf ("[INTPTR:%p], ", *((int **) curParm));
578 printf ("[UINTPTR:%p], ", *((int **) curParm));
580 case MONO_TYPE_BOOLEAN :
581 printf ("[BOOL:%d], ", *((int *) curParm));
583 case MONO_TYPE_CHAR :
584 printf ("[CHAR:%c], ", *((int *) curParm));
587 printf ("[INT1:%d], ", *((int *) curParm));
590 printf ("[INT2:%d], ", *((int *) curParm));
593 printf ("[INT4:%d], ", *((int *) curParm));
596 printf ("[UINT1:%u], ", *((unsigned int *) curParm));
599 printf ("[UINT2:%u], ", *((guint16 *) curParm));
602 printf ("[UINT4:%u], ", *((guint32 *) curParm));
605 printf ("[UINT8:%llu], ", *((guint64 *) curParm));
607 case MONO_TYPE_STRING : {
608 MonoString *s = *((MonoString **) curParm);
610 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
611 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
613 printf("[STRING:null], ");
617 case MONO_TYPE_CLASS :
618 case MONO_TYPE_OBJECT : {
619 MonoObject *obj = *((MonoObject **) curParm);
621 if ((obj) && (obj->vtable)) {
622 printf("[CLASS/OBJ:");
623 class = obj->vtable->klass;
624 printf("%p [%p] ",obj,curParm);
625 // if (class == mono_defaults.string_class) {
626 // printf("[STRING:%p:%s]",
627 // *obj, mono_string_to_utf8 (obj));
628 // } else if (class == mono_defaults.int32_class) {
629 // printf("[INT32:%p:%d]",
630 // obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
632 // printf("[%s.%s:%p]",
633 // class->name_space, class->name, obj);
636 printf("[OBJECT:null], ");
641 printf("[PTR:%p], ", *((gpointer **) (curParm)));
643 case MONO_TYPE_FNPTR :
644 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
646 case MONO_TYPE_ARRAY :
647 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
649 case MONO_TYPE_SZARRAY :
650 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
653 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
656 printf("[FLOAT4:%g], ", *((double *) (curParm)));
659 printf("[FLOAT8:%g], ", *((double *) (curParm)));
661 case MONO_TYPE_VALUETYPE : {
663 MonoMarshalType *info;
665 if (type->data.klass->enumtype) {
666 simpleType = mono_class_enum_basetype (type->data.klass)->type;
667 printf("{VALUETYPE} - ");
671 info = mono_marshal_load_type_info (type->data.klass);
673 if ((info->native_size == sizeof(float)) &&
674 (info->num_fields == 1) &&
675 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
676 printf("[FLOAT4:%f], ", *((float *) (curParm)));
680 if ((info->native_size == sizeof(double)) &&
681 (info->num_fields == 1) &&
682 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
683 printf("[FLOAT8:%g], ", *((double *) (curParm)));
687 printf("[VALUETYPE:");
688 for (i = 0; i < size; i++)
689 printf("%02x,", *((guint8 *)curParm+i));
693 case MONO_TYPE_TYPEDBYREF: {
695 printf("[TYPEDBYREF:");
696 for (i = 0; i < size; i++)
697 printf("%02x,", *((guint8 *)curParm+i));
702 printf("[?? - %d], ",simpleType);
707 /*========================= End of Function ========================*/
711 /*------------------------------------------------------------------*/
713 /* Name - enter_method */
715 /* Function - Perform tracing of the entry to the current */
718 /*------------------------------------------------------------------*/
721 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
723 int i, oParm = 0, iParm = 0;
725 MonoMethodSignature *sig;
732 fname = mono_method_full_name (method, TRUE);
734 printf ("ENTER: %s(", fname);
737 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
738 printf (") ip: %p sp: %p - ", (gpointer) ip, sp);
743 sig = mono_method_signature (method);
745 cinfo = get_call_info (NULL, NULL, sig, sig->pinvoke);
747 if (cinfo->struct_ret) {
748 printf ("[STRUCTRET:%p], ", (gpointer) rParm->gr[0]);
753 gpointer *this = (gpointer *) rParm->gr[iParm];
754 obj = (MonoObject *) this;
755 if (method->klass->valuetype) {
757 printf("this:[value:%p:%08x], ",
758 this, *((guint32 *)(this+sizeof(MonoObject))));
760 printf ("this:[NULL], ");
763 // class = obj->vtable->klass;
764 // if (class == mono_defaults.string_class) {
765 // printf ("this:[STRING:%p:%s], ",
766 // obj, mono_string_to_utf8 ((MonoString *)obj));
768 // printf ("this:%p[%s.%s], ",
769 // obj, class->name_space, class->name);
771 printf("this:%p, ",obj);
773 printf ("this:NULL, ");
778 for (i = 0; i < sig->param_count; ++i) {
779 ainfo = &cinfo->args[i + oParm];
780 switch (ainfo->regtype) {
781 case RegTypeGeneral :
782 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
785 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
788 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
790 case RegTypeStructByVal :
791 if (ainfo->reg != STK_BASE)
792 curParm = &(rParm->gr[ainfo->reg-2]);
794 curParm = sp+ainfo->offset;
796 if (retFitsInReg (ainfo->vtsize))
797 decodeParm(sig->params[i],
801 decodeParm(sig->params[i],
802 *((char **) curParm),
805 case RegTypeStructByAddr :
806 if (ainfo->reg != STK_BASE)
807 curParm = &(rParm->gr[ainfo->reg-2]);
809 curParm = sp+ainfo->offset;
811 decodeParm(sig->params[i],
812 *((char **) curParm),
824 /*========================= End of Function ========================*/
826 /*------------------------------------------------------------------*/
828 /* Name - leave_method */
832 /*------------------------------------------------------------------*/
835 leave_method (MonoMethod *method, ...)
842 va_start(ap, method);
844 fname = mono_method_full_name (method, TRUE);
846 printf ("LEAVE: %s", fname);
849 type = mono_method_signature (method)->ret;
852 switch (type->type) {
855 case MONO_TYPE_BOOLEAN: {
856 int val = va_arg (ap, int);
858 printf ("[TRUE:%d]", val);
864 case MONO_TYPE_CHAR: {
865 int val = va_arg (ap, int);
866 printf ("[CHAR:%d]", val);
870 int val = va_arg (ap, int);
871 printf ("[INT1:%d]", val);
875 int val = va_arg (ap, int);
876 printf ("[UINT1:%d]", val);
880 int val = va_arg (ap, int);
881 printf ("[INT2:%d]", val);
885 int val = va_arg (ap, int);
886 printf ("[UINT2:%d]", val);
890 int val = va_arg (ap, int);
891 printf ("[INT4:%d]", val);
895 int val = va_arg (ap, int);
896 printf ("[UINT4:%d]", val);
900 int val = va_arg (ap, int);
901 printf ("[INT:%d]", val);
906 int val = va_arg (ap, int);
907 printf ("[UINT:%d]", val);
911 case MONO_TYPE_STRING: {
912 MonoString *s = va_arg (ap, MonoString *);
915 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
916 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
918 printf ("[STRING:null], ");
921 case MONO_TYPE_CLASS:
922 case MONO_TYPE_OBJECT: {
923 MonoObject *o = va_arg (ap, MonoObject *);
925 // if ((o) && (o->vtable)) {
926 // if (o->vtable->klass == mono_defaults.boolean_class) {
927 // printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
928 // } else if (o->vtable->klass == mono_defaults.int32_class) {
929 // printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
930 // } else if (o->vtable->klass == mono_defaults.int64_class) {
931 // printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
933 // printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
935 printf ("[OBJECT:%p]", o);
940 case MONO_TYPE_FNPTR:
941 case MONO_TYPE_ARRAY:
942 case MONO_TYPE_SZARRAY: {
943 gpointer p = va_arg (ap, gpointer);
944 printf ("[result=%p]", p);
948 gint64 l = va_arg (ap, gint64);
949 printf ("[LONG:%lld]", l);
953 guint64 l = va_arg (ap, guint64);
954 printf ("[ULONG:%llu]", l);
959 f = va_arg (ap, double);
960 printf ("[FLOAT4:%g]\n", f);
964 double f = va_arg (ap, double);
965 printf ("[FLOAT8:%g]\n", f);
968 case MONO_TYPE_VALUETYPE: {
969 MonoMarshalType *info;
970 if (type->data.klass->enumtype) {
971 type = mono_class_enum_basetype (type->data.klass);
974 guint8 *p = va_arg (ap, gpointer);
977 info = mono_marshal_load_type_info (type->data.klass);
979 if ((info->native_size == sizeof(float)) &&
980 (info->num_fields == 1) &&
981 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
982 double f = va_arg (ap, double);
983 printf("[FLOAT4:%g]\n", (double) f);
987 if ((info->native_size == sizeof(double)) &&
988 (info->num_fields == 1) &&
989 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
990 double f = va_arg (ap, double);
991 printf("[FLOAT8:%g]\n", f);
995 size = mono_type_size (type, &align);
1002 for (j = 0; p && j < size; j++)
1003 printf ("%02x,", p [j]);
1007 printf ("[VALUERET]\n");
1012 case MONO_TYPE_TYPEDBYREF: {
1013 guint8 *p = va_arg (ap, gpointer);
1015 size = mono_type_size (type, &align);
1022 for (j = 0; p && j < size; j++)
1023 printf ("%02x,", p [j]);
1027 printf ("[TYPEDBYREF]\n");
1032 printf ("(unknown return type %x)",
1033 mono_method_signature (method)->ret->type);
1036 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
1037 printf (" ip: %p\n", (gpointer) ip);
1040 /*========================= End of Function ========================*/
1042 /*------------------------------------------------------------------*/
1044 /* Name - mono_arch_cpu_init */
1046 /* Function - Perform CPU specific initialization to execute */
1049 /*------------------------------------------------------------------*/
1052 mono_arch_cpu_init (void)
1056 /*--------------------------------------*/
1057 /* Set default rounding mode for FP */
1058 /*--------------------------------------*/
1059 __asm__ ("SRNM\t%0\n\t"
1063 /*========================= End of Function ========================*/
1067 * Initialize architecture specific code.
1070 mono_arch_init (void)
1075 * Cleanup architecture specific code.
1078 mono_arch_cleanup (void)
1082 /*------------------------------------------------------------------*/
1084 /* Name - mono_arch_cpu_optimizazions */
1086 /* Function - Returns the optimizations supported on this CPU */
1088 /*------------------------------------------------------------------*/
1091 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
1095 /*----------------------------------------------------------*/
1096 /* no s390-specific optimizations yet */
1097 /*----------------------------------------------------------*/
1098 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
1099 // *exclude_mask = MONO_OPT_INLINE;
1103 /*========================= End of Function ========================*/
1105 /*------------------------------------------------------------------*/
1111 /*------------------------------------------------------------------*/
1114 is_regsize_var (MonoType *t) {
1117 switch (mono_type_get_underlying_type (t)->type) {
1123 case MONO_TYPE_FNPTR:
1125 case MONO_TYPE_OBJECT:
1126 case MONO_TYPE_STRING:
1127 case MONO_TYPE_CLASS:
1128 case MONO_TYPE_SZARRAY:
1129 case MONO_TYPE_ARRAY:
1131 case MONO_TYPE_VALUETYPE:
1132 if (t->data.klass->enumtype)
1133 return is_regsize_var (mono_class_enum_basetype (t->data.klass));
1139 /*========================= End of Function ========================*/
1141 /*------------------------------------------------------------------*/
1143 /* Name - mono_arch_get_allocatable_int_vars */
1147 /*------------------------------------------------------------------*/
1150 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1155 for (i = 0; i < cfg->num_varinfo; i++) {
1156 MonoInst *ins = cfg->varinfo [i];
1157 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1160 if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
1163 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1164 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1167 /* we can only allocate 32 bit values */
1168 if (is_regsize_var (ins->inst_vtype)) {
1169 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1170 g_assert (i == vmv->idx);
1171 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1178 /*========================= End of Function ========================*/
1180 /*------------------------------------------------------------------*/
1182 /* Name - mono_arch_global_int_regs */
1184 /* Function - Return a list of usable integer registers. */
1186 /*------------------------------------------------------------------*/
1189 mono_arch_get_global_int_regs (MonoCompile *cfg)
1192 MonoMethodHeader *header;
1195 header = mono_method_get_header (cfg->method);
1196 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1197 cfg->frame_reg = s390_r11;
1199 /* FIXME: s390_r12 is reserved for bkchain_reg. Only reserve it if needed */
1201 for (i = 8; i < top; ++i) {
1202 if (cfg->frame_reg != i)
1203 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1209 /*========================= End of Function ========================*/
1211 /*------------------------------------------------------------------*/
1213 /* Name - mono_arch_flush_icache */
1215 /* Function - Flush the CPU icache. */
1217 /*------------------------------------------------------------------*/
1220 mono_arch_flush_icache (guint8 *code, gint size)
1224 /*========================= End of Function ========================*/
1226 /*------------------------------------------------------------------*/
1228 /* Name - mono_arch_is_inst_imm */
1230 /*------------------------------------------------------------------*/
1233 mono_arch_is_inst_imm (gint64 imm)
1235 /* The lowering pass will take care of it */
1239 /*========================= End of Function ========================*/
1241 /*------------------------------------------------------------------*/
1243 /* Name - add_general */
1245 /* Function - Determine code and stack size incremements for a */
1248 /*------------------------------------------------------------------*/
1251 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1256 if (*gr > S390_LAST_ARG_REG) {
1257 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1258 ainfo->offset = sz->stack_size;
1259 ainfo->reg = STK_BASE;
1260 ainfo->regtype = RegTypeBase;
1261 sz->stack_size += sizeof(int);
1262 sz->local_size += sizeof(int);
1263 sz->offStruct += sizeof(int);
1264 sz->code_size += 12;
1270 if (*gr > S390_LAST_ARG_REG - 1) {
1271 disp = sz->stack_size;
1272 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1273 disp = sz->stack_size - disp;
1274 ainfo->offset = sz->stack_size;
1275 ainfo->reg = STK_BASE;
1276 ainfo->regtype = RegTypeBase;
1277 sz->stack_size += sizeof(long long);
1278 sz->local_size += (sizeof(long long) + disp);
1279 sz->offStruct += (sizeof(long long) + disp);
1280 sz->code_size += 10;
1290 /*========================= End of Function ========================*/
1292 /*------------------------------------------------------------------*/
1294 /* Name - add_stackParm */
1296 /* Function - Determine code and stack size incremements for a */
1299 /*------------------------------------------------------------------*/
1302 add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
1304 if (*gr > S390_LAST_ARG_REG) {
1305 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1306 ainfo->reg = STK_BASE;
1307 ainfo->offset = sz->stack_size;
1308 sz->stack_size += sizeof (gpointer);
1309 sz->parm_size += sizeof(gpointer);
1310 sz->offStruct += sizeof(gpointer);
1313 ainfo->offset = sz->stack_size;
1316 ainfo->offparm = sz->offset;
1317 sz->offset = S390_ALIGN(sz->offset+size, sizeof(long));
1319 ainfo->regtype = RegTypeStructByAddr;
1320 ainfo->vtsize = size;
1321 sz->parm_size += size;
1324 /*========================= End of Function ========================*/
1326 /*------------------------------------------------------------------*/
1328 /* Name - add_float */
1330 /* Function - Determine code and stack size incremements for a */
1331 /* float parameter. */
1333 /*------------------------------------------------------------------*/
1336 add_float (guint *fr, size_data *sz, ArgInfo *ainfo)
1338 if ((*fr) <= S390_LAST_FPARG_REG) {
1339 ainfo->regtype = RegTypeFP;
1345 ainfo->offset = sz->stack_size;
1346 ainfo->reg = STK_BASE;
1347 ainfo->regtype = RegTypeBase;
1349 sz->stack_size += ainfo->size;
1350 sz->local_size += ainfo->size;
1351 sz->offStruct += ainfo->size;
1355 /*========================= End of Function ========================*/
1357 /*------------------------------------------------------------------*/
1359 /* Name - get_call_info */
1361 /* Function - Determine the amount of space required for code */
1362 /* and stack. In addition determine starting points */
1363 /* for stack-based parameters, and area for struct- */
1364 /* ures being returned on the stack. */
1366 /*------------------------------------------------------------------*/
1369 get_call_info (MonoCompile *cfg, MonoMemPool *mp, MonoMethodSignature *sig, gboolean is_pinvoke)
1371 guint i, fr, gr, size;
1372 int nParm = sig->hasthis + sig->param_count;
1374 guint32 simpletype, align;
1377 MonoGenericSharingContext *gsctx = cfg ? cfg->generic_sharing_context : NULL;
1380 cinfo = mono_mempool_alloc0 (mp, sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1382 cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1387 cinfo->struct_ret = 0;
1390 sz->offStruct = S390_MINIMAL_STACK_SIZE;
1392 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1397 /*----------------------------------------------------------*/
1398 /* We determine the size of the return code/stack in case we*/
1399 /* need to reserve a register to be used to address a stack */
1400 /* area that the callee will use. */
1401 /*----------------------------------------------------------*/
1403 ret_type = mono_type_get_underlying_type (sig->ret);
1404 ret_type = mini_get_basic_type_from_generic (gsctx, ret_type);
1405 simpletype = ret_type->type;
1407 switch (simpletype) {
1408 case MONO_TYPE_BOOLEAN:
1413 case MONO_TYPE_CHAR:
1418 case MONO_TYPE_CLASS:
1419 case MONO_TYPE_OBJECT:
1420 case MONO_TYPE_SZARRAY:
1421 case MONO_TYPE_ARRAY:
1423 case MONO_TYPE_FNPTR:
1424 case MONO_TYPE_STRING:
1425 cinfo->ret.reg = s390_r2;
1430 cinfo->ret.reg = s390_f0;
1435 cinfo->ret.reg = s390_r2;
1438 case MONO_TYPE_GENERICINST:
1439 if (!mono_type_generic_inst_is_valuetype (sig->ret)) {
1440 cinfo->ret.reg = s390_r2;
1445 case MONO_TYPE_VALUETYPE: {
1446 MonoClass *klass = mono_class_from_mono_type (sig->ret);
1447 if (klass->enumtype) {
1448 simpletype = mono_class_enum_basetype (klass)->type;
1452 size = mono_class_native_size (klass, &align);
1454 size = mono_class_value_size (klass, &align);
1456 cinfo->ret.reg = s390_r2;
1457 cinfo->struct_ret = 1;
1458 cinfo->ret.size = size;
1459 cinfo->ret.vtsize = size;
1463 case MONO_TYPE_TYPEDBYREF:
1464 size = sizeof (MonoTypedRef);
1465 cinfo->ret.reg = s390_r2;
1466 cinfo->struct_ret = 1;
1467 cinfo->ret.size = size;
1468 cinfo->ret.vtsize = size;
1471 case MONO_TYPE_VOID:
1474 g_error ("mini-s390: cannot handle as return value 0x%x (0x%x)", sig->ret->type,simpletype);
1478 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1479 cinfo->args[nParm].size = sizeof(gpointer);
1483 /*----------------------------------------------------------*/
1484 /* We determine the size of the parameter code and stack */
1485 /* requirements by checking the types and sizes of the */
1487 /*----------------------------------------------------------*/
1489 for (i = 0; i < sig->param_count; ++i) {
1492 /*--------------------------------------------------*/
1493 /* Handle vararg type calls. All args are put on */
1495 /*--------------------------------------------------*/
1496 if ((sig->call_convention == MONO_CALL_VARARG) &&
1497 (i == sig->sentinelpos)) {
1498 gr = S390_LAST_ARG_REG + 1;
1499 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1502 if (sig->params [i]->byref) {
1503 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1504 cinfo->args[nParm].size = sizeof(gpointer);
1509 ptype = mono_type_get_underlying_type (sig->params [i]);
1510 ptype = mini_get_basic_type_from_generic (gsctx, ptype);
1511 simpletype = ptype->type;
1512 switch (simpletype) {
1513 case MONO_TYPE_BOOLEAN:
1516 cinfo->args[nParm].size = sizeof(char);
1517 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1522 case MONO_TYPE_CHAR:
1523 cinfo->args[nParm].size = sizeof(short);
1524 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1529 cinfo->args[nParm].size = sizeof(int);
1530 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1536 case MONO_TYPE_FNPTR:
1537 case MONO_TYPE_CLASS:
1538 case MONO_TYPE_OBJECT:
1539 case MONO_TYPE_STRING:
1540 case MONO_TYPE_SZARRAY:
1541 case MONO_TYPE_ARRAY:
1542 cinfo->args[nParm].size = sizeof(gpointer);
1543 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1548 cinfo->args[nParm].size = sizeof(long long);
1549 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1553 cinfo->args[nParm].size = sizeof(float);
1554 add_float (&fr, sz, cinfo->args+nParm);
1558 cinfo->args[nParm].size = sizeof(double);
1559 add_float (&fr, sz, cinfo->args+nParm);
1562 case MONO_TYPE_GENERICINST:
1563 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
1564 cinfo->args[nParm].size = sizeof(gpointer);
1565 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1570 case MONO_TYPE_VALUETYPE: {
1571 MonoMarshalType *info;
1572 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
1574 size = mono_class_native_size (klass, &align);
1576 size = mono_class_value_size (klass, &align);
1578 info = mono_marshal_load_type_info (klass);
1580 if ((info->native_size == sizeof(float)) &&
1581 (info->num_fields == 1) &&
1582 (info->fields[0].field->type->type == MONO_TYPE_R4)) {
1583 cinfo->args[nParm].size = sizeof(float);
1584 add_float(&fr, sz, cinfo->args+nParm);
1589 if ((info->native_size == sizeof(double)) &&
1590 (info->num_fields == 1) &&
1591 (info->fields[0].field->type->type == MONO_TYPE_R8)) {
1592 cinfo->args[nParm].size = sizeof(double);
1593 add_float(&fr, sz, cinfo->args+nParm);
1598 cinfo->args[nParm].vtsize = 0;
1599 cinfo->args[nParm].size = 0;
1602 /*----------------------------------*/
1603 /* On S/390, structures of size 1, */
1604 /* 2, 4, and 8 bytes are passed in */
1605 /* (a) register(s). */
1606 /*----------------------------------*/
1611 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1612 cinfo->args[nParm].size = size;
1613 cinfo->args[nParm].regtype = RegTypeStructByVal;
1615 sz->local_size += sizeof(long);
1618 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1619 cinfo->args[nParm].size = sizeof(long long);
1620 cinfo->args[nParm].regtype = RegTypeStructByVal;
1622 sz->local_size += sizeof(long long);
1625 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1630 case MONO_TYPE_TYPEDBYREF: {
1631 int size = sizeof (MonoTypedRef);
1633 cinfo->args[nParm].vtsize = 0;
1634 cinfo->args[nParm].size = 0;
1637 /*----------------------------------*/
1638 /* On S/390, structures of size 1, */
1639 /* 2, 4, and 8 bytes are passed in */
1640 /* (a) register(s). */
1641 /*----------------------------------*/
1646 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1647 cinfo->args[nParm].size = size;
1648 cinfo->args[nParm].regtype = RegTypeStructByVal;
1650 sz->local_size += sizeof(long);
1653 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1654 cinfo->args[nParm].size = sizeof(long long);
1655 cinfo->args[nParm].regtype = RegTypeStructByVal;
1657 sz->local_size += sizeof(long long);
1660 add_stackParm(&gr, sz, cinfo->args+nParm, size);
1666 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1670 /*----------------------------------------------------------*/
1671 /* If we are passing a structure back then if it won't be */
1672 /* in a register(s) then we make room at the end of the */
1673 /* parameters that may have been placed on the stack */
1674 /*----------------------------------------------------------*/
1675 if (cinfo->struct_ret) {
1676 cinfo->ret.offset = sz->stack_size;
1677 switch (cinfo->ret.size) {
1685 sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
1689 /*----------------------------------------------------------*/
1690 /* Handle the case where there are no implicit arguments */
1691 /*----------------------------------------------------------*/
1692 if ((sig->call_convention == MONO_CALL_VARARG) &&
1693 (sig->param_count == sig->sentinelpos)) {
1694 gr = S390_LAST_ARG_REG + 1;
1695 add_general (&gr, sz, &cinfo->sigCookie, TRUE);
1699 sz->stack_size = sz->stack_size + sz->local_size + sz->parm_size +
1701 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1706 /*========================= End of Function ========================*/
1708 /*------------------------------------------------------------------*/
1710 /* Name - mono_arch_allocate_vars */
1712 /* Function - Set var information according to the calling */
1713 /* convention for S/390. The local var stuff should */
1714 /* most likely be split in another method. */
1716 /* Parameter - @m - Compile unit. */
1718 /*------------------------------------------------------------------*/
1721 mono_arch_allocate_vars (MonoCompile *cfg)
1723 MonoMethodSignature *sig;
1724 MonoMethodHeader *header;
1727 int iParm, iVar, offset, size, align, curinst;
1728 int frame_reg = STK_BASE;
1731 header = mono_method_get_header (cfg->method);
1733 cfg->flags |= MONO_CFG_HAS_SPILLUP;
1735 sig = mono_method_signature (cfg->method);
1737 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1739 /*---------------------------------------------------------*/
1740 /* We use the frame register also for any method that has */
1741 /* filter clauses. This way, when the handlers are called, */
1742 /* the code will reference local variables using the frame */
1743 /* reg instead of the stack pointer: if we had to restore */
1744 /* the stack pointer, we'd corrupt the method frames that */
1745 /* are already on the stack (since filters get called */
1746 /* before stack unwinding happens) when the filter code */
1747 /* would call any method. */
1748 /*---------------------------------------------------------*/
1749 if ((cfg->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1750 frame_reg = s390_r11;
1752 cfg->frame_reg = frame_reg;
1754 cfg->arch.bkchain_reg = -1;
1756 if (frame_reg != STK_BASE)
1757 cfg->used_int_regs |= 1 << frame_reg;
1759 sig = mono_method_signature (cfg->method);
1761 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1763 if (!cinfo->struct_ret) {
1764 switch (mono_type_get_underlying_type (sig->ret)->type) {
1765 case MONO_TYPE_VOID:
1768 cfg->ret->opcode = OP_REGVAR;
1769 cfg->ret->dreg = s390_r2;
1774 /*--------------------------------------------------------------*/
1775 /* local vars are at a positive offset from the stack pointer */
1776 /* also note that if the function uses alloca, we use s390_r11 */
1777 /* to point at the local variables. */
1778 /* add parameter area size for called functions */
1779 /*--------------------------------------------------------------*/
1780 offset = (cfg->param_area + S390_MINIMAL_STACK_SIZE);
1781 cfg->sig_cookie = 0;
1783 if (cinfo->struct_ret) {
1784 inst = cfg->vret_addr;
1785 offset = S390_ALIGN(offset, sizeof(gpointer));
1786 inst->inst_offset = offset;
1787 inst->opcode = OP_REGOFFSET;
1788 inst->inst_basereg = frame_reg;
1789 offset += sizeof(gpointer);
1790 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1791 printf ("vret_addr =");
1792 mono_print_ins (cfg->vret_addr);
1797 inst = cfg->args [0];
1798 if (inst->opcode != OP_REGVAR) {
1799 inst->opcode = OP_REGOFFSET;
1800 inst->inst_basereg = frame_reg;
1801 offset = S390_ALIGN(offset, sizeof(gpointer));
1802 inst->inst_offset = offset;
1803 offset += sizeof (gpointer);
1810 eArg = sig->param_count + sArg;
1812 if (sig->call_convention == MONO_CALL_VARARG)
1813 cfg->sig_cookie += S390_MINIMAL_STACK_SIZE;
1815 for (iParm = sArg; iParm < eArg; ++iParm) {
1816 inst = cfg->args [curinst];
1817 if (inst->opcode != OP_REGVAR) {
1818 switch (cinfo->args[iParm].regtype) {
1819 case RegTypeStructByAddr : {
1822 size = sizeof (gpointer);
1824 if (cinfo->args [iParm].reg == STK_BASE) {
1825 cfg->arch.bkchain_reg = s390_r12;
1826 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1828 inst->opcode = OP_REGOFFSET;
1829 inst->inst_basereg = cfg->arch.bkchain_reg;
1830 inst->inst_offset = cinfo->args [iParm].offset;
1832 inst->opcode = OP_REGOFFSET;
1833 inst->inst_basereg = frame_reg;
1834 inst->inst_offset = S390_ALIGN(offset, sizeof (gpointer));
1837 /* Add a level of indirection */
1838 MONO_INST_NEW (cfg, indir, 0);
1840 inst->opcode = OP_VTARG_ADDR;
1841 inst->inst_left = indir;
1844 case RegTypeStructByVal :
1845 size = cinfo->args[iParm].size;
1846 offset = S390_ALIGN(offset, size);
1847 inst->opcode = OP_REGOFFSET;
1848 inst->inst_basereg = frame_reg;
1849 inst->inst_offset = S390_ALIGN (offset, size);
1852 if (cinfo->args [iParm].reg == STK_BASE) {
1854 * These arguments are in the previous frame, so we can't
1855 * compute their offset from the current frame pointer right
1856 * now, since cfg->stack_offset is not yet known, so dedicate a
1857 * register holding the previous frame pointer.
1859 cfg->arch.bkchain_reg = s390_r12;
1860 cfg->used_int_regs |= 1 << cfg->arch.bkchain_reg;
1862 inst->opcode = OP_REGOFFSET;
1863 inst->inst_basereg = cfg->arch.bkchain_reg;
1864 size = (cinfo->args[iParm].size < 4
1865 ? 4 - cinfo->args[iParm].size
1867 inst->inst_offset = cinfo->args [iParm].offset + size;
1868 size = sizeof (long);
1870 inst->opcode = OP_REGOFFSET;
1871 inst->inst_basereg = frame_reg;
1872 size = (cinfo->args[iParm].size < 8
1874 : sizeof(long long));
1875 offset = S390_ALIGN(offset, size);
1876 inst->inst_offset = offset;
1879 if ((sig->call_convention == MONO_CALL_VARARG) &&
1880 (cinfo->args[iParm].regtype != RegTypeGeneral) &&
1881 (iParm < sig->sentinelpos))
1882 cfg->sig_cookie += size;
1889 curinst = cfg->locals_start;
1890 for (iVar = curinst; iVar < cfg->num_varinfo; ++iVar) {
1891 inst = cfg->varinfo [iVar];
1892 if ((inst->flags & MONO_INST_IS_DEAD) ||
1893 (inst->opcode == OP_REGVAR))
1896 /*--------------------------------------------------*/
1897 /* inst->backend.is_pinvoke indicates native sized value types, */
1898 /* this is used by the pinvoke wrappers when they */
1899 /* call functions returning structure */
1900 /*--------------------------------------------------*/
1901 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1902 size = mono_class_native_size (mono_class_from_mono_type(inst->inst_vtype), &align);
1904 size = mono_type_size (inst->inst_vtype, &align);
1906 offset = S390_ALIGN(offset, align);
1907 inst->inst_offset = offset;
1908 inst->opcode = OP_REGOFFSET;
1909 inst->inst_basereg = frame_reg;
1911 DEBUG (g_print("allocating local %d to %ld\n", iVar, inst->inst_offset));
1914 /*------------------------------------------------------*/
1915 /* Allow space for the trace method stack area if needed*/
1916 /*------------------------------------------------------*/
1917 if (mono_jit_trace_calls != NULL && mono_trace_eval (cfg->method)) {
1918 offset += S390_TRACE_STACK_SIZE;
1921 /*------------------------------------------------------*/
1922 /* Reserve space to save LMF and caller saved registers */
1923 /*------------------------------------------------------*/
1924 if (cfg->method->save_lmf)
1925 offset += sizeof (MonoLMF);
1927 /*------------------------------------------------------*/
1928 /* align the offset */
1929 /*------------------------------------------------------*/
1930 cfg->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1932 /* Fix up offsets for arguments whose value is in the parent frame */
1933 for (iParm = sArg; iParm < eArg; ++iParm) {
1934 inst = cfg->args [iParm];
1936 if (inst->opcode == OP_S390_STKARG) {
1937 inst->opcode = OP_REGOFFSET;
1938 inst->inst_offset += cfg->stack_offset;
1943 /*========================= End of Function ========================*/
1945 /*------------------------------------------------------------------*/
1947 /* Name - mono_arch_create_vars */
1949 /*------------------------------------------------------------------*/
1952 mono_arch_create_vars (MonoCompile *cfg)
1954 MonoMethodSignature *sig;
1957 sig = mono_method_signature (cfg->method);
1959 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
1961 if (cinfo->struct_ret) {
1962 cfg->vret_addr = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_ARG);
1963 if (G_UNLIKELY (cfg->verbose_level > 1)) {
1964 printf ("vret_addr = ");
1965 mono_print_ins (cfg->vret_addr);
1970 /*========================= End of Function ========================*/
1973 add_outarg_reg2 (MonoCompile *cfg, MonoCallInst *call, ArgStorage storage, int reg, MonoInst *tree)
1978 case RegTypeGeneral:
1979 MONO_INST_NEW (cfg, ins, OP_MOVE);
1980 ins->dreg = mono_alloc_ireg (cfg);
1981 ins->sreg1 = tree->dreg;
1982 MONO_ADD_INS (cfg->cbb, ins);
1983 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, FALSE);
1986 MONO_INST_NEW (cfg, ins, OP_FMOVE);
1987 ins->dreg = mono_alloc_freg (cfg);
1988 ins->sreg1 = tree->dreg;
1989 MONO_ADD_INS (cfg->cbb, ins);
1990 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
1993 MONO_INST_NEW (cfg, ins, OP_S390_SETF4RET);
1994 ins->dreg = mono_alloc_freg (cfg);
1995 ins->sreg1 = tree->dreg;
1996 MONO_ADD_INS (cfg->cbb, ins);
1997 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, reg, TRUE);
2000 g_assert_not_reached ();
2005 emit_sig_cookie (MonoCompile *cfg, MonoCallInst *call, CallInfo *cinfo)
2007 MonoMethodSignature *tmpSig;
2010 cfg->disable_aot = TRUE;
2012 /*----------------------------------------------------------*/
2013 /* mono_ArgIterator_Setup assumes the signature cookie is */
2014 /* passed first and all the arguments which were before it */
2015 /* passed on the stack after the signature. So compensate */
2016 /* by passing a different signature. */
2017 /*----------------------------------------------------------*/
2018 tmpSig = mono_metadata_signature_dup (call->signature);
2019 tmpSig->param_count -= call->signature->sentinelpos;
2020 tmpSig->sentinelpos = 0;
2021 if (tmpSig->param_count > 0)
2022 memcpy (tmpSig->params,
2023 call->signature->params + call->signature->sentinelpos,
2024 tmpSig->param_count * sizeof(MonoType *));
2026 MONO_INST_NEW (cfg, sig_arg, OP_ICONST);
2027 sig_arg->dreg = mono_alloc_ireg (cfg);
2028 sig_arg->inst_p0 = tmpSig;
2029 MONO_ADD_INS (cfg->cbb, sig_arg);
2031 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, STK_BASE,
2032 cinfo->sigCookie.offset, sig_arg->dreg);
2035 /*------------------------------------------------------------------*/
2037 /* Name - mono_arch_emit_call */
2039 /*------------------------------------------------------------------*/
2042 mono_arch_emit_call (MonoCompile *cfg, MonoCallInst *call)
2045 MonoMethodSignature *sig;
2047 int i, n, lParamArea;
2049 ArgInfo *ainfo = NULL;
2052 sig = call->signature;
2053 n = sig->param_count + sig->hasthis;
2054 DEBUG (g_print ("Call requires: %d parameters\n",n));
2056 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
2058 stackSize = cinfo->sz.stack_size + cinfo->sz.local_size + cinfo->sz.parm_size + cinfo->sz.offset;
2059 call->stack_usage = MAX(stackSize, call->stack_usage);
2060 lParamArea = MAX((call->stack_usage-S390_MINIMAL_STACK_SIZE-cinfo->sz.parm_size), 0);
2061 cfg->param_area = MAX(((signed) cfg->param_area), lParamArea);
2062 cfg->flags |= MONO_CFG_HAS_CALLS;
2064 if (cinfo->struct_ret) {
2065 MONO_INST_NEW (cfg, ins, OP_MOVE);
2066 ins->sreg1 = call->vret_var->dreg;
2067 ins->dreg = mono_alloc_preg (cfg);
2068 MONO_ADD_INS (cfg->cbb, ins);
2069 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, cinfo->ret.reg, FALSE);
2072 for (i = 0; i < n; ++i) {
2073 ainfo = cinfo->args + i;
2076 if (i >= sig->hasthis)
2077 t = sig->params [i - sig->hasthis];
2079 t = &mono_defaults.int_class->byval_arg;
2080 t = mono_type_get_underlying_type (t);
2082 in = call->args [i];
2084 if ((sig->call_convention == MONO_CALL_VARARG) &&
2085 (i == sig->sentinelpos)) {
2086 emit_sig_cookie (cfg, call, cinfo);
2089 switch (ainfo->regtype) {
2090 case RegTypeGeneral:
2091 if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2092 MONO_INST_NEW (cfg, ins, OP_MOVE);
2093 ins->dreg = mono_alloc_ireg (cfg);
2094 ins->sreg1 = in->dreg + 2;
2095 MONO_ADD_INS (cfg->cbb, ins);
2096 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg, FALSE);
2097 MONO_INST_NEW (cfg, ins, OP_MOVE);
2098 ins->dreg = mono_alloc_ireg (cfg);
2099 ins->sreg1 = in->dreg + 1;
2100 MONO_ADD_INS (cfg->cbb, ins);
2101 mono_call_inst_add_outarg_reg (cfg, call, ins->dreg, ainfo->reg + 1, FALSE);
2103 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2107 if (MONO_TYPE_ISSTRUCT (t)) {
2108 /* Valuetype passed in one fp register */
2109 ainfo->regtype = RegTypeStructByValInFP;
2112 if (ainfo->size == 4)
2113 ainfo->regtype = RegTypeFPR4;
2114 add_outarg_reg2 (cfg, call, ainfo->regtype, ainfo->reg, in);
2117 case RegTypeStructByVal:
2118 case RegTypeStructByAddr: {
2122 if (sig->params [i - sig->hasthis]->type == MONO_TYPE_TYPEDBYREF) {
2123 size = sizeof (MonoTypedRef);
2124 align = sizeof (gpointer);
2128 size = mono_type_native_stack_size (&in->klass->byval_arg, &align);
2131 * Other backends use mono_type_stack_size (), but that
2132 * aligns the size to 8, which is larger than the size of
2133 * the source, leading to reads of invalid memory if the
2134 * source is at the end of address space.
2136 size = mono_class_value_size (in->klass, &align);
2139 g_assert (in->klass);
2141 ainfo->offparm += cinfo->sz.offStruct;
2143 MONO_INST_NEW (cfg, ins, OP_OUTARG_VT);
2144 ins->sreg1 = in->dreg;
2145 ins->klass = in->klass;
2146 ins->backend.size = ainfo->size;
2147 ins->inst_p0 = call;
2148 ins->inst_p1 = mono_mempool_alloc (cfg->mempool, sizeof (ArgInfo));
2149 memcpy (ins->inst_p1, ainfo, sizeof (ArgInfo));
2151 MONO_ADD_INS (cfg->cbb, ins);
2153 if (ainfo->regtype == RegTypeStructByAddr) {
2155 * We use OP_OUTARG_VT to copy the valuetype to a stack location, then
2156 * use the normal OUTARG opcodes to pass the address of the location to
2159 int treg = mono_alloc_preg (cfg);
2160 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, treg,
2161 STK_BASE, ainfo->offparm);
2162 if (ainfo->reg == STK_BASE) {
2163 /* The address is passed on the stack */
2164 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2165 ins->inst_destbasereg = STK_BASE;
2166 ins->inst_offset = ainfo->offset;
2168 MONO_ADD_INS (cfg->cbb, ins);
2170 mono_call_inst_add_outarg_reg (cfg, call, treg, ainfo->reg, FALSE);
2176 if (!t->byref && t->type == MONO_TYPE_R4) {
2177 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG,
2178 STK_BASE, ainfo->offset,
2180 } else if (!t->byref && (t->type == MONO_TYPE_R8)) {
2181 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG,
2182 STK_BASE, ainfo->offset,
2184 } else if (!t->byref && (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_U8)) {
2185 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2186 ins->inst_destbasereg = STK_BASE;
2187 ins->inst_offset = ainfo->offset + MINI_LS_WORD_OFFSET;
2188 ins->sreg1 = in->dreg + 1;
2189 MONO_ADD_INS (cfg->cbb, ins);
2191 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2192 ins->inst_destbasereg = STK_BASE;
2193 ins->inst_offset = ainfo->offset + MINI_MS_WORD_OFFSET;
2194 ins->sreg1 = in->dreg + 2;
2195 MONO_ADD_INS (cfg->cbb, ins);
2197 MONO_INST_NEW (cfg, ins, OP_STORE_MEMBASE_REG);
2198 ins->inst_destbasereg = STK_BASE;
2199 ins->inst_offset = ainfo->offset;
2200 ins->sreg1 = in->dreg;
2201 MONO_ADD_INS (cfg->cbb, ins);
2205 g_assert_not_reached ();
2211 * Handle the case where there are no implicit arguments
2213 if ((sig->call_convention == MONO_CALL_VARARG) &&
2214 (i == sig->sentinelpos)) {
2215 emit_sig_cookie (cfg, call, cinfo);
2219 /*========================= End of Function ========================*/
2221 /*------------------------------------------------------------------*/
2223 /* Name - mono_arch_emit_outarg_vt */
2225 /*------------------------------------------------------------------*/
2228 mono_arch_emit_outarg_vt (MonoCompile *cfg, MonoInst *ins, MonoInst *src)
2230 MonoCallInst *call = (MonoCallInst*)ins->inst_p0;
2231 ArgInfo *ainfo = (ArgInfo*)ins->inst_p1;
2232 int size = ins->backend.size;
2234 if (ainfo->regtype == RegTypeStructByVal) {
2236 arg->ins.sreg1 = ainfo->reg;
2237 arg->ins.opcode = OP_OUTARG_VT;
2238 arg->size = ainfo->size;
2239 arg->offset = ainfo->offset;
2240 arg->offPrm = ainfo->offparm + cinfo->sz.offStruct;
2242 if (ainfo->reg != STK_BASE) {
2243 MONO_OUTPUT_VTR (cfg, size, ainfo->reg, src->dreg, 0);
2245 MONO_OUTPUT_VTS (cfg, size, ainfo->reg, ainfo->offset,
2248 } else if (ainfo->regtype == RegTypeStructByValInFP) {
2249 int dreg = mono_alloc_freg (cfg);
2251 if (ainfo->size == 4) {
2252 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR4_MEMBASE, dreg, src->dreg, 0);
2253 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, dreg, dreg);
2255 g_assert (ainfo->size == 8);
2257 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADR8_MEMBASE, dreg, src->dreg, 0);
2260 mono_call_inst_add_outarg_reg (cfg, call, dreg, ainfo->reg, TRUE);
2262 MONO_EMIT_NEW_MOVE (cfg, STK_BASE, ainfo->offparm,
2263 src->dreg, 0, size);
2267 /*------------------------------------------------------------------*/
2269 /* Name - mono_arch_emit_setret */
2271 /*------------------------------------------------------------------*/
2274 mono_arch_emit_setret (MonoCompile *cfg, MonoMethod *method, MonoInst *val)
2276 MonoType *ret = mono_type_get_underlying_type (mono_method_signature (method)->ret);
2279 if (ret->type == MONO_TYPE_R4) {
2280 MONO_EMIT_NEW_UNALU (cfg, OP_S390_SETF4RET, s390_f0, val->dreg);
2282 } else if (ret->type == MONO_TYPE_R8) {
2283 MONO_EMIT_NEW_UNALU (cfg, OP_FMOVE, s390_f0, val->dreg);
2285 } else if (ret->type == MONO_TYPE_I8 || ret->type == MONO_TYPE_U8) {
2286 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r3, val->dreg + 1);
2287 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r2, val->dreg + 2);
2292 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->ret->dreg, val->dreg);
2295 /*========================= End of Function ========================*/
2297 /*------------------------------------------------------------------*/
2299 /* Name - mono_arch_instrument_mem_needs */
2301 /* Function - Allow tracing to work with this interface (with */
2302 /* an optional argument). */
2304 /*------------------------------------------------------------------*/
2307 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
2309 /* no stack room needed now (may be needed for FASTCALL-trace support) */
2311 /* split prolog-epilog requirements? */
2312 *code = 50; /* max bytes needed: check this number */
2315 /*========================= End of Function ========================*/
2317 /*------------------------------------------------------------------*/
2319 /* Name - mono_arch_instrument_prolog */
2321 /* Function - Create an "instrumented" prolog. */
2323 /*------------------------------------------------------------------*/
2326 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
2327 gboolean enable_arguments)
2334 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2335 if (cfg->method->save_lmf)
2336 parmOffset -= sizeof(MonoLMF);
2337 fpOffset = parmOffset + (5*sizeof(gint32));
2338 if (fpOffset > 4096) {
2339 s390_lr (code, s390_r12, STK_BASE);
2341 while (fpOffset > 4096) {
2342 s390_ahi (code, baseReg, 4096);
2350 s390_stm (code, s390_r2, s390_r6, baseReg, parmOffset);
2351 s390_std (code, s390_f0, 0, baseReg, fpOffset);
2352 s390_std (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2353 s390_std (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2354 s390_basr (code, s390_r13, 0);
2356 s390_word (code, cfg->method);
2357 s390_word (code, func);
2358 s390_l (code, s390_r2, 0, s390_r13, 4);
2359 s390_la (code, s390_r3, 0, baseReg, parmOffset);
2360 s390_lr (code, s390_r4, STK_BASE);
2361 s390_ahi (code, s390_r4, cfg->stack_usage);
2362 s390_l (code, s390_r1, 0, s390_r13, 8);
2363 s390_basr (code, s390_r14, s390_r1);
2364 s390_ld (code, s390_f2, 0, baseReg, fpOffset+2*sizeof(gdouble));
2365 s390_ld (code, s390_f1, 0, baseReg, fpOffset+sizeof(gdouble));
2366 s390_ld (code, s390_f0, 0, baseReg, fpOffset);
2367 s390_lm (code, s390_r2, s390_r6, baseReg, parmOffset);
2372 /*========================= End of Function ========================*/
2374 /*------------------------------------------------------------------*/
2376 /* Name - mono_arch_instrument_epilog */
2378 /* Function - Create an epilog that will handle the returned */
2379 /* values used in instrumentation. */
2381 /*------------------------------------------------------------------*/
2384 mono_arch_instrument_epilog_full (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers)
2387 int save_mode = SAVE_NONE,
2389 MonoMethod *method = cfg->method;
2390 int rtype = mono_type_get_underlying_type (mono_method_signature (method)->ret)->type;
2392 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
2393 if (method->save_lmf)
2394 saveOffset -= sizeof(MonoLMF);
2398 case MONO_TYPE_VOID:
2399 /* special case string .ctor icall */
2400 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
2401 save_mode = SAVE_ONE;
2403 save_mode = SAVE_NONE;
2407 save_mode = SAVE_TWO;
2410 save_mode = SAVE_R4;
2413 save_mode = SAVE_R8;
2415 case MONO_TYPE_VALUETYPE:
2416 if (mono_method_signature (method)->ret->data.klass->enumtype) {
2417 rtype = mono_class_enum_basetype (mono_method_signature (method)->ret->data.klass)->type;
2420 save_mode = SAVE_STRUCT;
2423 save_mode = SAVE_ONE;
2427 switch (save_mode) {
2429 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2430 if (enable_arguments) {
2431 s390_lr (code, s390_r4, s390_r3);
2432 s390_lr (code, s390_r3, s390_r2);
2436 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2437 if (enable_arguments) {
2438 s390_lr (code, s390_r3, s390_r2);
2442 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2443 if (enable_arguments) {
2444 s390_ldebr (code, s390_f0, s390_f0);
2448 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2451 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2452 if (enable_arguments) {
2453 s390_l (code, s390_r3, 0, cfg->frame_reg,
2454 S390_MINIMAL_STACK_SIZE+cfg->param_area);
2462 s390_basr (code, s390_r13, 0);
2464 s390_word (code, cfg->method);
2465 s390_word (code, func);
2466 s390_l (code, s390_r2, 0, s390_r13, 4);
2467 s390_l (code, s390_r1, 0, s390_r13, 8);
2468 s390_basr (code, s390_r14, s390_r1);
2470 switch (save_mode) {
2472 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
2475 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2479 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
2482 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
2492 /*========================= End of Function ========================*/
2495 mono_arch_peephole_pass_1 (MonoCompile *cfg, MonoBasicBlock *bb)
2499 /*------------------------------------------------------------------*/
2501 /* Name - mono_arch_peephole_pass */
2503 /* Function - Form a peephole pass at the code looking for */
2504 /* simple optimizations. */
2506 /*------------------------------------------------------------------*/
2509 mono_arch_peephole_pass_2 (MonoCompile *cfg, MonoBasicBlock *bb)
2513 MONO_BB_FOR_EACH_INS_SAFE (bb, n, ins) {
2514 mono_peephole_ins (bb, ins);
2518 /*========================= End of Function ========================*/
2521 mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
2523 MonoInst *ins, *next;
2525 MONO_BB_FOR_EACH_INS_SAFE (bb, next, ins) {
2526 switch (ins->opcode) {
2531 case OP_IDIV_UN_IMM:
2532 case OP_IREM_UN_IMM:
2533 case OP_LOCALLOC_IMM:
2534 mono_decompose_op_imm (cfg, bb, ins);
2541 bb->max_vreg = cfg->next_vreg;
2544 /*========================= End of Function ========================*/
2546 /*------------------------------------------------------------------*/
2548 /* Name - emit_float_to_int */
2550 /* Function - Create instructions which will convert a floating */
2551 /* point value to integer. */
2553 /*------------------------------------------------------------------*/
2556 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2558 /* sreg is a float, dreg is an integer reg. */
2560 s390_cfdbr (code, dreg, 5, sreg);
2563 s390_lhi (code, s390_r0, 0);
2564 s390_lhi (code, s390_r13, 0xff);
2565 s390_ltr (code, dreg, dreg);
2567 s390_lhi (code, s390_r0, 0x80);
2568 s390_nr (code, dreg, s390_r13);
2569 s390_or (code, dreg, s390_r0);
2574 s390_basr (code, s390_r13, 0);
2576 s390_llong (code, 0x41e0000000000000LL);
2577 s390_llong (code, 0x41f0000000000000LL);
2578 s390_ldr (code, s390_f15, sreg);
2579 s390_cdb (code, s390_f15, 0, s390_r13, 4);
2580 s390_jl (code, 0); CODEPTR(code, o[0]);
2581 s390_sdb (code, s390_f15, 0, s390_r13, 12);
2582 s390_cfdbr (code, dreg, 7, s390_f15);
2584 PTRSLOT(code, o[0]);
2585 s390_cfdbr (code, dreg, 5, sreg);
2588 s390_lhi (code, s390_r0, 0xff);
2589 s390_nr (code, dreg, s390_r0);
2592 s390_lhi (code, s390_r0, -1);
2593 s390_srl (code, s390_r0, 0, 16);
2594 s390_nr (code, dreg, s390_r0);
2601 /*========================= End of Function ========================*/
2603 /*------------------------------------------------------------------*/
2605 /* Name - mono_arch_output_basic_block */
2607 /* Function - Perform the "real" work of emitting instructions */
2608 /* that will do the work of in the basic block. */
2610 /*------------------------------------------------------------------*/
2613 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2618 guint8 *code = cfg->native_code + cfg->code_len;
2619 MonoInst *last_ins = NULL;
2620 guint last_offset = 0;
2621 int max_len, cpos, src2;
2623 /* we don't align basic blocks of loops on s390 */
2625 if (cfg->verbose_level > 2)
2626 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2628 cpos = bb->max_offset;
2630 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
2631 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
2632 //g_assert (!mono_compile_aot);
2635 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
2636 /* this is not thread save, but good enough */
2637 /* fixme: howto handle overflows? */
2638 //x86_inc_mem (code, &cov->data [bb->dfn].count);
2641 MONO_BB_FOR_EACH_INS (bb, ins) {
2642 offset = code - cfg->native_code;
2644 max_len = ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
2646 if (offset > (cfg->code_size - max_len - 16)) {
2647 cfg->code_size *= 2;
2648 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
2649 code = cfg->native_code + offset;
2652 mono_debug_record_line_number (cfg, ins, offset);
2654 switch (ins->opcode) {
2655 case OP_STOREI1_MEMBASE_IMM: {
2656 s390_lhi (code, s390_r0, ins->inst_imm);
2657 if (s390_is_uimm12(ins->inst_offset))
2658 s390_stc (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2660 s390_basr (code, s390_r13, 0);
2662 s390_word (code, ins->inst_offset);
2663 s390_l (code, s390_r13, 0, s390_r13, 4);
2664 s390_stc (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2668 case OP_STOREI2_MEMBASE_IMM: {
2669 s390_lhi (code, s390_r0, ins->inst_imm);
2670 if (s390_is_uimm12(ins->inst_offset)) {
2671 s390_sth (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2673 s390_basr (code, s390_r13, 0);
2675 s390_word (code, ins->inst_offset);
2676 s390_l (code, s390_r13, 0, s390_r13, 4);
2677 s390_sth (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2681 case OP_STORE_MEMBASE_IMM:
2682 case OP_STOREI4_MEMBASE_IMM: {
2683 if (s390_is_imm16(ins->inst_imm)) {
2684 s390_lhi (code, s390_r0, ins->inst_imm);
2686 s390_basr (code, s390_r13, 0);
2688 s390_word (code, ins->inst_imm);
2689 s390_l (code, s390_r0, 0, s390_r13, 4);
2691 if (s390_is_uimm12(ins->inst_offset)) {
2692 s390_st (code, s390_r0, 0, ins->inst_destbasereg, ins->inst_offset);
2694 s390_basr (code, s390_r13, 0);
2696 s390_word (code, ins->inst_offset);
2697 s390_l (code, s390_r13, 0, s390_r13, 4);
2698 s390_st (code, s390_r0, s390_r13, ins->inst_destbasereg, 0);
2702 case OP_STOREI1_MEMBASE_REG: {
2703 if (s390_is_uimm12(ins->inst_offset)) {
2704 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2706 s390_basr (code, s390_r13, 0);
2708 s390_word (code, ins->inst_offset);
2709 s390_l (code, s390_r13, 0, s390_r13, 4);
2710 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2714 case OP_STOREI2_MEMBASE_REG: {
2715 if (s390_is_uimm12(ins->inst_offset)) {
2716 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2718 s390_basr (code, s390_r13, 0);
2720 s390_word (code, ins->inst_offset);
2721 s390_l (code, s390_r13, 0, s390_r13, 4);
2722 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2726 case OP_STORE_MEMBASE_REG:
2727 case OP_STOREI4_MEMBASE_REG: {
2728 if (s390_is_uimm12(ins->inst_offset)) {
2729 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
2731 s390_basr (code, s390_r13, 0);
2733 s390_word (code, ins->inst_offset);
2734 s390_l (code, s390_r13, 0, s390_r13, 4);
2735 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
2740 g_assert_not_reached ();
2742 case OP_LOAD_MEMBASE:
2743 case OP_LOADI4_MEMBASE:
2744 case OP_LOADU4_MEMBASE: {
2745 if (s390_is_uimm12(ins->inst_offset))
2746 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
2748 if (s390_is_imm16(ins->inst_offset)) {
2749 s390_lhi (code, s390_r13, ins->inst_offset);
2750 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2752 s390_basr (code, s390_r13, 0);
2754 s390_word (code, ins->inst_offset);
2755 s390_l (code, s390_r13, 0, s390_r13, 4);
2756 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
2761 case OP_LOADU1_MEMBASE: {
2762 s390_lhi (code, s390_r0, 0);
2763 if (s390_is_uimm12(ins->inst_offset))
2764 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2766 s390_basr (code, s390_r13, 0);
2768 s390_word (code, ins->inst_offset);
2769 s390_l (code, s390_r13, 0, s390_r13, 4);
2770 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2772 s390_lr (code, ins->dreg, s390_r0);
2775 case OP_LOADI1_MEMBASE: {
2776 s390_lhi (code, s390_r0, 0);
2777 if (s390_is_uimm12(ins->inst_offset))
2778 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2780 s390_basr (code, s390_r13, 0);
2782 s390_word (code, ins->inst_offset);
2783 s390_l (code, s390_r13, 0, s390_r13, 4);
2784 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2786 s390_lhi (code, s390_r13, 0x80);
2787 s390_nr (code, s390_r13, s390_r0);
2789 s390_lhi (code, s390_r13, 0xff00);
2790 s390_or (code, s390_r0, s390_r13);
2791 s390_lr (code, ins->dreg, s390_r0);
2794 case OP_LOADU2_MEMBASE: {
2795 s390_lhi (code, s390_r0, 0);
2796 if (s390_is_uimm12(ins->inst_offset))
2797 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
2799 s390_basr (code, s390_r13, 0);
2801 s390_word (code, ins->inst_offset);
2802 s390_l (code, s390_r13, 0, s390_r13, 4);
2803 s390_ar (code, s390_r13, ins->inst_basereg);
2804 s390_icm (code, s390_r0, 3, s390_r13, 0);
2806 s390_lr (code, ins->dreg, s390_r0);
2809 case OP_LOADI2_MEMBASE: {
2810 s390_lhi (code, s390_r0, 0);
2811 if (s390_is_uimm12(ins->inst_offset))
2812 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
2814 s390_basr (code, s390_r13, 0);
2816 s390_word (code, ins->inst_offset);
2817 s390_l (code, s390_r13, 0, s390_r13, 4);
2818 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
2820 s390_lr (code, ins->dreg, s390_r0);
2824 case OP_ICONV_TO_I1: {
2825 if (ins->dreg != ins->sreg1)
2826 s390_lr (code, ins->dreg, ins->sreg1);
2827 s390_sll (code, ins->dreg, 0, 24);
2828 s390_sra (code, ins->dreg, 0, 24);
2831 case OP_ICONV_TO_I2: {
2832 if (ins->dreg != ins->sreg1)
2833 s390_lr (code, ins->dreg, ins->sreg1);
2834 s390_sll (code, ins->dreg, 0, 16);
2835 s390_sra (code, ins->dreg, 0, 16);
2838 case OP_ICONV_TO_U1: {
2839 s390_lhi (code, s390_r0, 0xff);
2840 if (ins->dreg != ins->sreg1) {
2841 s390_lr (code, ins->dreg, ins->sreg1);
2843 s390_nr (code, ins->dreg, s390_r0);
2846 case OP_ICONV_TO_U2: {
2847 s390_lhi (code, s390_r0, -1);
2848 s390_sll (code, s390_r0, 0, 16);
2849 s390_srl (code, s390_r0, 0, 16);
2850 if (ins->dreg != ins->sreg1) {
2851 s390_lr (code, ins->dreg, ins->sreg1);
2853 s390_nr (code, ins->dreg, s390_r0);
2858 gboolean un = FALSE;
2859 MonoInst *next = ins->next;
2862 (((next->opcode >= OP_IBNE_UN) &&
2863 (next->opcode <= OP_IBLT_UN)) ||
2864 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2865 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2866 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2867 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2868 ((next->opcode == OP_CLT_UN) ||
2869 (next->opcode == OP_CGT_UN)) ||
2870 ((next->opcode == OP_ICLT_UN) ||
2871 (next->opcode == OP_ICGT_UN))))
2875 s390_clr (code, ins->sreg1, ins->sreg2);
2877 s390_cr (code, ins->sreg1, ins->sreg2);
2880 case OP_COMPARE_IMM:
2881 case OP_ICOMPARE_IMM: {
2882 gboolean un = FALSE;
2883 MonoInst *next = ins->next;
2886 (((next->opcode >= OP_IBNE_UN) &&
2887 (next->opcode <= OP_IBLT_UN)) ||
2888 ((next->opcode >= OP_COND_EXC_NE_UN) &&
2889 (next->opcode <= OP_COND_EXC_LT_UN)) ||
2890 ((next->opcode >= OP_COND_EXC_INE_UN) &&
2891 (next->opcode <= OP_COND_EXC_ILT_UN)) ||
2892 ((next->opcode == OP_CLT_UN) ||
2893 (next->opcode == OP_CGT_UN)) ||
2894 ((next->opcode == OP_ICLT_UN) ||
2895 (next->opcode == OP_ICGT_UN))))
2898 if (s390_is_imm16 (ins->inst_imm)) {
2899 s390_lhi (code, s390_r0, ins->inst_imm);
2901 s390_clr (code, ins->sreg1, s390_r0);
2903 s390_cr (code, ins->sreg1, s390_r0);
2906 s390_basr (code, s390_r13, 0);
2908 s390_word (code, ins->inst_imm);
2910 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
2912 s390_c (code, ins->sreg1, 0, s390_r13, 4);
2917 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_break);
2918 s390_brasl (code, s390_r14, 0);
2924 s390_alr (code, ins->dreg, src2);
2929 s390_ar (code, ins->dreg, src2);
2935 s390_alcr (code, ins->dreg, src2);
2940 if (ins->dreg != ins->sreg1) {
2941 s390_lr (code, ins->dreg, ins->sreg1);
2944 (ins->next->opcode == OP_ADC_IMM)) {
2945 s390_basr (code, s390_r13, 0);
2947 s390_word (code, ins->inst_imm);
2948 s390_a (code, ins->dreg, 0, s390_r13, 4);
2950 if (s390_is_imm16 (ins->inst_imm)) {
2951 s390_ahi (code, ins->dreg, ins->inst_imm);
2953 s390_basr (code, s390_r13, 0);
2955 s390_word (code, ins->inst_imm);
2956 s390_a (code, ins->dreg, 0, s390_r13, 4);
2961 case OP_ADDCC_IMM: {
2963 (ins->next->opcode == OP_ADC_IMM)) {
2964 s390_basr (code, s390_r13, 0);
2966 s390_word (code, ins->inst_imm);
2967 if (ins->dreg != ins->sreg1) {
2968 s390_lr (code, ins->dreg, ins->sreg1);
2970 s390_al (code, ins->dreg, 0, s390_r13, 4);
2972 if (s390_is_imm16 (ins->inst_imm)) {
2973 if (ins->dreg != ins->sreg1) {
2974 s390_lr (code, ins->dreg, ins->sreg1);
2976 s390_lhi (code, s390_r0, ins->inst_imm);
2977 s390_alcr (code, ins->dreg, s390_r0);
2979 s390_basr (code, s390_r13, 0);
2981 s390_word (code, ins->inst_imm);
2982 if (ins->dreg != ins->sreg1) {
2983 s390_lr (code, ins->dreg, ins->sreg1);
2985 s390_al (code, ins->dreg, 0, s390_r13, 4);
2991 if (s390_is_imm16 (ins->inst_imm)) {
2992 if (ins->dreg != ins->sreg1) {
2993 s390_lr (code, ins->dreg, ins->sreg1);
2995 s390_lhi (code, s390_r0, ins->inst_imm);
2996 s390_alcr (code, ins->dreg, s390_r0);
2998 s390_basr (code, s390_r13, 0);
3000 s390_word (code, ins->inst_imm);
3001 s390_l (code, s390_r13, 0, s390_r13, 4);
3002 s390_alcr (code, ins->dreg, s390_r13);
3007 case OP_S390_IADD_OVF: {
3009 s390_ar (code, ins->dreg, src2);
3010 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3013 case OP_IADD_OVF_UN:
3014 case OP_S390_IADD_OVF_UN: {
3016 s390_alr (code, ins->dreg, src2);
3017 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3021 case OP_S390_LADD: {
3022 s390_alr (code, s390_r0, ins->sreg1);
3024 s390_ahi (code, s390_r1, 1);
3025 s390_ar (code, s390_r1, ins->sreg2);
3026 s390_lr (code, ins->dreg, s390_r0);
3027 s390_lr (code, ins->dreg+1, s390_r1);
3031 case OP_S390_LADD_OVF: {
3033 s390_alr (code, s390_r0, ins->sreg1);
3034 s390_jnc (code, 0); CODEPTR(code, o[0]);
3035 s390_ahi (code, s390_r1, 1);
3036 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3037 PTRSLOT (code, o[0]);
3038 s390_ar (code, s390_r1, ins->sreg2);
3039 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3040 s390_lr (code, ins->dreg, s390_r0);
3041 s390_lr (code, ins->dreg+1, s390_r1);
3044 case OP_LADD_OVF_UN:
3045 case OP_S390_LADD_OVF_UN: {
3046 s390_alr (code, s390_r0, ins->sreg1);
3047 s390_alcr (code, s390_r1, ins->sreg2);
3048 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3049 s390_lr (code, ins->dreg, s390_r0);
3050 s390_lr (code, ins->dreg+1, s390_r1);
3053 case OP_ADD_OVF_CARRY: {
3055 s390_lhi (code, s390_r0, 0);
3056 s390_lr (code, s390_r1, s390_r0);
3057 s390_alcr (code, s390_r0, s390_r1);
3058 s390_ar (code, ins->dreg, src2);
3059 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3060 s390_ar (code, ins->dreg, s390_r0);
3061 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3064 case OP_ADD_OVF_UN_CARRY: {
3066 s390_alcr (code, ins->dreg, src2);
3067 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3073 s390_slr (code, ins->dreg, src2);
3078 s390_sr (code, ins->dreg, src2);
3084 s390_slbr (code, ins->dreg, src2);
3087 case OP_SUBCC_IMM: {
3088 if (s390_is_imm16 (-ins->inst_imm)) {
3089 if (ins->dreg != ins->sreg1) {
3090 s390_lr (code, ins->dreg, ins->sreg1);
3092 s390_lhi (code, s390_r0, ins->inst_imm);
3093 s390_slr (code, ins->dreg, s390_r0);
3095 s390_basr (code, s390_r13, 0);
3097 s390_word (code, ins->inst_imm);
3098 if (ins->dreg != ins->sreg1) {
3099 s390_lr (code, ins->dreg, ins->sreg1);
3101 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3107 if (s390_is_imm16 (-ins->inst_imm)) {
3108 if (ins->dreg != ins->sreg1) {
3109 s390_lr (code, ins->dreg, ins->sreg1);
3111 s390_ahi (code, ins->dreg, -ins->inst_imm);
3113 s390_basr (code, s390_r13, 0);
3115 s390_word (code, ins->inst_imm);
3116 if (ins->dreg != ins->sreg1) {
3117 s390_lr (code, ins->dreg, ins->sreg1);
3119 s390_s (code, ins->dreg, 0, s390_r13, 4);
3124 if (ins->dreg != ins->sreg1) {
3125 s390_lr (code, ins->dreg, ins->sreg1);
3127 if (s390_is_imm16 (-ins->inst_imm)) {
3128 s390_lhi (code, s390_r0, ins->inst_imm);
3129 s390_slbr (code, ins->dreg, s390_r0);
3131 s390_basr (code, s390_r13, 0);
3133 s390_word (code, ins->inst_imm);
3134 s390_slb (code, ins->dreg, 0, s390_r13, 4);
3139 case OP_S390_ISUB_OVF: {
3141 s390_sr (code, ins->dreg, src2);
3142 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3145 case OP_ISUB_OVF_UN:
3146 case OP_S390_ISUB_OVF_UN: {
3148 s390_slr (code, ins->dreg, src2);
3149 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3153 case OP_S390_LSUB: {
3154 s390_lr (code, s390_r14, ins->sreg2);
3155 s390_slr (code, s390_r0, ins->sreg1);
3157 s390_ahi (code, s390_r14, 1);
3158 s390_sr (code, s390_r1, s390_r14);
3159 s390_lr (code, ins->dreg, s390_r0);
3160 s390_lr (code, ins->dreg+1, s390_r1);
3164 case OP_S390_LSUB_OVF: {
3166 s390_lr (code, s390_r14, ins->sreg2);
3167 s390_slr (code, s390_r0, ins->sreg1);
3168 s390_jnl (code, 0); CODEPTR(code, o[0]);
3169 s390_ahi (code, s390_r14, 1);
3170 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3171 PTRSLOT (code, o[0]);
3172 s390_sr (code, s390_r1, s390_r14);
3173 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3174 s390_lr (code, ins->dreg, s390_r0);
3175 s390_lr (code, ins->dreg+1, s390_r1);
3178 case OP_LSUB_OVF_UN:
3179 case OP_S390_LSUB_OVF_UN: {
3180 s390_slr (code, s390_r0, ins->sreg1);
3181 s390_slbr (code, s390_r1, ins->sreg2);
3182 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
3183 s390_lr (code, ins->dreg, s390_r0);
3184 s390_lr (code, ins->dreg+1, s390_r1);
3187 case OP_SUB_OVF_CARRY: {
3189 s390_lhi (code, s390_r0, 0);
3190 s390_lr (code, s390_r1, s390_r0);
3191 s390_slbr (code, s390_r0, s390_r1);
3192 s390_sr (code, ins->dreg, src2);
3193 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3194 s390_ar (code, ins->dreg, s390_r0);
3195 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3198 case OP_SUB_OVF_UN_CARRY: {
3200 s390_slbr (code, ins->dreg, src2);
3201 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3205 if (ins->sreg1 == ins->dreg) {
3206 s390_nr (code, ins->dreg, ins->sreg2);
3209 if (ins->sreg2 == ins->dreg) {
3210 s390_nr (code, ins->dreg, ins->sreg1);
3213 s390_lr (code, ins->dreg, ins->sreg1);
3214 s390_nr (code, ins->dreg, ins->sreg2);
3221 if (s390_is_imm16 (ins->inst_imm)) {
3222 s390_lhi (code, s390_r0, ins->inst_imm);
3223 if (ins->dreg != ins->sreg1) {
3224 s390_lr (code, ins->dreg, ins->sreg1);
3226 s390_nr (code, ins->dreg, s390_r0);
3228 s390_basr (code, s390_r13, 0);
3230 s390_word (code, ins->inst_imm);
3231 if (ins->dreg != ins->sreg1) {
3232 s390_lr (code, ins->dreg, ins->sreg1);
3234 s390_n (code, ins->dreg, 0, s390_r13, 4);
3239 s390_lr (code, s390_r0, ins->sreg1);
3240 s390_srda (code, s390_r0, 0, 32);
3241 s390_dr (code, s390_r0, ins->sreg2);
3242 s390_lr (code, ins->dreg, s390_r1);
3246 s390_lr (code, s390_r0, ins->sreg1);
3247 s390_srdl (code, s390_r0, 0, 32);
3248 s390_dlr (code, s390_r0, ins->sreg2);
3249 s390_lr (code, ins->dreg, s390_r1);
3253 s390_lr (code, s390_r0, ins->sreg1);
3254 s390_srda (code, s390_r0, 0, 32);
3255 s390_dr (code, s390_r0, ins->sreg2);
3256 s390_lr (code, ins->dreg, s390_r0);
3259 s390_lr (code, s390_r0, ins->sreg1);
3260 s390_srdl (code, s390_r0, 0, 32);
3261 s390_dlr (code, s390_r0, ins->sreg2);
3262 s390_lr (code, ins->dreg, s390_r0);
3266 if (ins->sreg1 == ins->dreg) {
3267 s390_or (code, ins->dreg, ins->sreg2);
3270 if (ins->sreg2 == ins->dreg) {
3271 s390_or (code, ins->dreg, ins->sreg1);
3274 s390_lr (code, ins->dreg, ins->sreg1);
3275 s390_or (code, ins->dreg, ins->sreg2);
3282 if (s390_is_imm16 (ins->inst_imm)) {
3283 s390_lhi (code, s390_r0, ins->inst_imm);
3284 if (ins->dreg != ins->sreg1) {
3285 s390_lr (code, ins->dreg, ins->sreg1);
3287 s390_or (code, ins->dreg, s390_r0);
3289 s390_basr (code, s390_r13, 0);
3291 s390_word (code, ins->inst_imm);
3292 if (ins->dreg != ins->sreg1) {
3293 s390_lr (code, ins->dreg, ins->sreg1);
3295 s390_o (code, ins->dreg, 0, s390_r13, 4);
3300 if (ins->sreg1 == ins->dreg) {
3301 s390_xr (code, ins->dreg, ins->sreg2);
3304 if (ins->sreg2 == ins->dreg) {
3305 s390_xr (code, ins->dreg, ins->sreg1);
3308 s390_lr (code, ins->dreg, ins->sreg1);
3309 s390_xr (code, ins->dreg, ins->sreg2);
3316 if (s390_is_imm16 (ins->inst_imm)) {
3317 s390_lhi (code, s390_r0, ins->inst_imm);
3318 if (ins->dreg != ins->sreg1) {
3319 s390_lr (code, ins->dreg, ins->sreg1);
3321 s390_xr (code, ins->dreg, s390_r0);
3323 s390_basr (code, s390_r13, 0);
3325 s390_word (code, ins->inst_imm);
3326 if (ins->dreg != ins->sreg1) {
3327 s390_lr (code, ins->dreg, ins->sreg1);
3329 s390_x (code, ins->dreg, 0, s390_r13, 4);
3335 s390_sll (code, ins->dreg, src2, 0);
3340 if (ins->sreg1 != ins->dreg) {
3341 s390_lr (code, ins->dreg, ins->sreg1);
3343 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3348 s390_sra (code, ins->dreg, src2, 0);
3353 if (ins->sreg1 != ins->dreg) {
3354 s390_lr (code, ins->dreg, ins->sreg1);
3356 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3360 case OP_ISHR_UN_IMM: {
3361 if (ins->sreg1 != ins->dreg) {
3362 s390_lr (code, ins->dreg, ins->sreg1);
3364 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3369 s390_srl (code, ins->dreg, src2, 0);
3373 if (ins->sreg1 != ins->dreg) {
3374 s390_lr (code, ins->dreg, ins->sreg1);
3376 s390_lhi (code, s390_r0, -1);
3377 s390_xr (code, ins->dreg, s390_r0);
3381 s390_lcr (code, ins->dreg, ins->sreg1);
3384 case OP_S390_LNEG: {
3386 g_assert (ins->dreg + 1 != ins->sreg1);
3387 s390_lcr (code, ins->dreg + 1, ins->sreg2);
3388 s390_lcr (code, ins->dreg, ins->sreg1);
3390 s390_bctr (code, ins->dreg + 1, 0);
3394 if (ins->sreg1 == ins->dreg) {
3395 s390_msr (code, ins->dreg, ins->sreg2);
3398 if (ins->sreg2 == ins->dreg) {
3399 s390_msr (code, ins->dreg, ins->sreg1);
3402 s390_lr (code, ins->dreg, ins->sreg1);
3403 s390_msr (code, ins->dreg, ins->sreg2);
3410 if (s390_is_imm16 (ins->inst_imm)) {
3411 s390_lhi (code, s390_r13, ins->inst_imm);
3413 s390_basr (code, s390_r13, 0);
3415 s390_word (code, ins->inst_imm);
3416 // if (ins->dreg != ins->sreg1) {
3417 // s390_lr (code, ins->dreg, ins->sreg1);
3419 s390_l (code, s390_r13, 0, s390_r13, 4);
3421 if (ins->dreg != ins->sreg1) {
3422 s390_lr (code, ins->dreg, ins->sreg1);
3424 s390_msr (code, ins->dreg, s390_r13);
3429 s390_ltr (code, s390_r1, ins->sreg1);
3430 s390_jz (code, 0); CODEPTR(code, o[0]);
3431 s390_ltr (code, s390_r0, ins->sreg2);
3433 s390_lhi (code, s390_r1, 0);
3434 s390_j (code, 0); CODEPTR(code, o[1]);
3435 s390_xr (code, s390_r0, s390_r1);
3436 s390_msr (code, s390_r1, ins->sreg2);
3437 s390_xr (code, s390_r0, s390_r1);
3438 s390_srl (code, s390_r0, 0, 31);
3439 s390_ltr (code, s390_r0, s390_r0);
3440 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3441 PTRSLOT (code, o[0]);
3442 PTRSLOT (code, o[1]);
3443 s390_lr (code, ins->dreg, s390_r1);
3446 case OP_IMUL_OVF_UN: {
3447 s390_lhi (code, s390_r0, 0);
3448 s390_lr (code, s390_r1, ins->sreg1);
3449 s390_mlr (code, s390_r0, ins->sreg2);
3450 s390_ltr (code, s390_r0, s390_r0);
3451 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3452 s390_lr (code, ins->dreg, s390_r1);
3456 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3457 s390_srda (code, s390_r0, 0, 32);
3458 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3459 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3460 s390_srl (code, s390_r0, 0, 31);
3461 s390_a (code, s390_r0, 0, ins->sreg1, 0);
3462 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3463 s390_srl (code, s390_r13, 0, 31);
3464 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3465 s390_ar (code, s390_r0, s390_r13);
3466 s390_st (code, s390_r0, 0, ins->dreg, 0);
3467 s390_st (code, s390_r1, 0, ins->dreg, 4);
3471 if (s390_is_imm16(ins->inst_c0)) {
3472 s390_lhi (code, ins->dreg, ins->inst_c0);
3474 s390_basr (code, s390_r13, 0);
3476 s390_word (code, ins->inst_c0);
3477 s390_l (code, ins->dreg, 0, s390_r13, 4);
3482 s390_basr (code, s390_r13, 0);
3484 mono_add_patch_info (cfg, code - cfg->native_code,
3485 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3486 s390_word (code, 0);
3487 s390_l (code,ins->dreg, 0, s390_r13, 4);
3490 case OP_JUMP_TABLE: {
3491 mono_add_patch_info (cfg, code - cfg->native_code,
3492 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3493 s390_basr (code, s390_r13, 0);
3495 s390_word (code, 0);
3496 s390_l (code, ins->dreg, 0, s390_r13, 4);
3499 case OP_ICONV_TO_I4:
3500 case OP_ICONV_TO_U4:
3502 if (ins->dreg != ins->sreg1) {
3503 s390_lr (code, ins->dreg, ins->sreg1);
3508 int saved = ins->sreg1;
3509 if (ins->sreg1 == s390_r2) {
3510 s390_lr (code, s390_r0, ins->sreg1);
3513 if (ins->sreg2 != s390_r2)
3514 s390_lr (code, s390_r2, ins->sreg2);
3515 if (saved != s390_r3)
3516 s390_lr (code, s390_r3, saved);
3520 if (ins->dreg != ins->sreg1) {
3521 s390_ldr (code, ins->dreg, ins->sreg1);
3525 case OP_S390_SETF4RET: {
3526 s390_ledbr (code, ins->dreg, ins->sreg1);
3530 if (s390_is_imm16 (ins->inst_offset)) {
3531 s390_lhi (code, s390_r13, ins->inst_offset);
3533 s390_bras (code, s390_r13, 0);
3535 s390_word (code, ins->inst_offset);
3536 s390_l (code, s390_r13, 0, s390_r13, 4);
3538 s390_ear (code, s390_r1, 0);
3539 s390_l (code, ins->dreg, s390_r13, s390_r1, 0);
3542 case OP_FCONV_TO_R4: {
3544 if (ins->dreg != ins->sreg1) {
3545 s390_ldr (code, ins->dreg, ins->sreg1);
3550 (ins->next->opcode != OP_FMOVE) &&
3551 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3552 s390_ledbr (code, ins->dreg, ins->sreg1);
3557 if (cfg->method->save_lmf)
3558 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
3560 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3561 code = emit_load_volatile_registers(code, cfg);
3564 code = backUpStackPtr(cfg, code, STK_BASE);
3565 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3566 mono_add_patch_info (cfg, code - cfg->native_code,
3567 MONO_PATCH_INFO_METHOD_JUMP,
3569 s390_jcl (code, S390_CC_UN, 0);
3572 case OP_CHECK_THIS: {
3573 /* ensure ins->sreg1 is not NULL */
3574 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3578 int offset = cfg->sig_cookie + cfg->stack_usage;
3580 if (s390_is_imm16 (offset))
3581 s390_lhi (code, s390_r0, offset);
3583 s390_basr (code, s390_r13, 0);
3585 s390_word (code, offset);
3586 s390_l (code, s390_r0, 0, s390_r13, 0);
3588 s390_ar (code, s390_r0, cfg->frame_reg);
3589 s390_st (code, s390_r0, 0, ins->sreg1, 0);
3593 call = (MonoCallInst*)ins;
3594 if (ins->flags & MONO_INST_HAS_METHOD)
3595 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3598 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3600 s390_brasl (code, s390_r14, 0);
3601 if (call->signature->ret->type == MONO_TYPE_R4)
3602 s390_ldebr (code, s390_f0, s390_f0);
3610 call = (MonoCallInst*)ins;
3611 if (ins->flags & MONO_INST_HAS_METHOD)
3612 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3614 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3615 s390_brasl (code, s390_r14, 0);
3618 case OP_FCALL_REG: {
3619 call = (MonoCallInst*)ins;
3620 s390_lr (code, s390_r1, ins->sreg1);
3621 s390_basr (code, s390_r14, s390_r1);
3622 if (call->signature->ret->type == MONO_TYPE_R4)
3623 s390_ldebr (code, s390_f0, s390_f0);
3629 case OP_VOIDCALL_REG:
3631 s390_lr (code, s390_r1, ins->sreg1);
3632 s390_basr (code, s390_r14, s390_r1);
3635 case OP_LCALL_MEMBASE:
3636 case OP_VCALL_MEMBASE:
3637 case OP_VCALL2_MEMBASE:
3638 case OP_VOIDCALL_MEMBASE:
3639 case OP_FCALL_MEMBASE:
3640 case OP_CALL_MEMBASE: {
3641 call = (MonoCallInst*)ins;
3642 if (s390_is_uimm12(ins->inst_offset))
3643 s390_l (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
3645 if (s390_is_imm16(ins->inst_offset)) {
3646 s390_lhi (code, s390_r13, ins->inst_offset);
3647 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3649 s390_basr (code, s390_r13, 0);
3651 s390_word (code, ins->inst_offset);
3652 s390_l (code, s390_r13, 0, s390_r13, 4);
3653 s390_l (code, s390_r1, s390_r13, ins->inst_basereg, 0);
3656 s390_basr (code, s390_r14, s390_r1);
3657 if (ins->opcode == OP_FCALL_MEMBASE && call->signature->ret->type == MONO_TYPE_R4)
3658 s390_ldebr (code, s390_f0, s390_f0);
3662 /*------------------------------------------*/
3663 /* To allocate space on the stack we have */
3664 /* to allow room for parameters passed in */
3665 /* calls, the backchain pointer and round */
3666 /* it to our stack alignment requirements */
3667 /*------------------------------------------*/
3668 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area;
3669 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3670 s390_lr (code, s390_r1, ins->sreg1);
3671 if (ins->flags & MONO_INST_INIT)
3672 s390_lr (code, s390_r0, ins->sreg1);
3673 s390_ahi (code, s390_r1, 14);
3674 s390_srl (code, s390_r1, 0, 3);
3675 s390_sll (code, s390_r1, 0, 3);
3676 if (cfg->method->save_lmf) {
3677 /*----------------------------------*/
3678 /* we have to adjust lmf ebp value */
3679 /*----------------------------------*/
3680 int lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
3682 s390_lr (code, s390_r13, cfg->frame_reg);
3683 if (s390_is_uimm16(lmfOffset))
3684 s390_ahi (code, s390_r13, lmfOffset);
3686 s390_basr (code, s390_r14, 0);
3688 s390_word (code, lmfOffset);
3689 s390_a (code, s390_r13, 0, s390_r14, 4);
3691 s390_lr (code, s390_r14, STK_BASE);
3692 s390_sr (code, s390_r14, s390_r1);
3693 s390_st (code, s390_r14, 0, s390_r13,
3694 G_STRUCT_OFFSET(MonoLMF, ebp));
3696 s390_l (code, s390_r13, 0, STK_BASE, 0);
3697 s390_sr (code, STK_BASE, s390_r1);
3698 s390_st (code, s390_r13, 0, STK_BASE, 0);
3699 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3700 s390_srl (code, ins->dreg, 0, 3);
3701 s390_sll (code, ins->dreg, 0, 3);
3702 if (ins->flags & MONO_INST_INIT) {
3703 s390_lr (code, s390_r1, s390_r0);
3704 s390_lr (code, s390_r0, ins->dreg);
3705 s390_lr (code, s390_r14, s390_r12);
3706 s390_lhi (code, s390_r13, 0);
3707 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
3709 s390_lr (code, s390_r12, s390_r14);
3714 s390_lr (code, s390_r2, ins->sreg1);
3715 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3716 (gpointer)"mono_arch_throw_exception");
3717 s390_brasl (code, s390_r14, 0);
3721 s390_lr (code, s390_r2, ins->sreg1);
3722 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3723 (gpointer)"mono_arch_rethrow_exception");
3724 s390_brasl (code, s390_r14, 0);
3727 case OP_START_HANDLER: {
3728 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3729 if (s390_is_uimm12 (spvar->inst_offset)) {
3730 s390_st (code, s390_r14, 0,
3731 spvar->inst_basereg,
3732 spvar->inst_offset);
3734 s390_basr (code, s390_r13, 0);
3736 s390_word (code, spvar->inst_offset);
3737 s390_l (code, s390_r13, 0, s390_r13, 4);
3738 s390_st (code, s390_r14, s390_r13,
3739 spvar->inst_basereg, 0);
3743 case OP_ENDFILTER: {
3744 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3745 if (ins->sreg1 != s390_r2)
3746 s390_lr (code, s390_r2, ins->sreg1);
3747 if (s390_is_uimm12 (spvar->inst_offset)) {
3748 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3749 spvar->inst_offset);
3751 s390_basr (code, s390_r13, 0);
3753 s390_word (code, spvar->inst_offset);
3754 s390_l (code, s390_r13, 0, s390_r13, 4);
3755 s390_l (code, s390_r14, s390_r13,
3756 spvar->inst_basereg, 0);
3758 s390_br (code, s390_r14);
3761 case OP_ENDFINALLY: {
3762 MonoInst *spvar = mono_find_spvar_for_region (cfg, bb->region);
3763 if (s390_is_uimm12 (spvar->inst_offset)) {
3764 s390_l (code, s390_r14, 0, spvar->inst_basereg,
3765 spvar->inst_offset);
3767 s390_basr (code, s390_r13, 0);
3769 s390_word (code, spvar->inst_offset);
3770 s390_l (code, s390_r13, 0, s390_r13, 4);
3771 s390_l (code, s390_r14, s390_r13,
3772 spvar->inst_basereg, 0);
3774 s390_br (code, s390_r14);
3777 case OP_CALL_HANDLER: {
3778 mono_add_patch_info (cfg, code-cfg->native_code,
3779 MONO_PATCH_INFO_BB, ins->inst_target_bb);
3780 s390_brasl (code, s390_r14, 0);
3784 ins->inst_c0 = code - cfg->native_code;
3787 case OP_RELAXED_NOP:
3790 case OP_DUMMY_STORE:
3791 case OP_NOT_REACHED:
3796 EMIT_UNCOND_BRANCH(ins);
3799 s390_br (code, ins->sreg1);
3804 s390_lhi (code, ins->dreg, 1);
3806 s390_lhi (code, ins->dreg, 0);
3811 s390_lhi (code, ins->dreg, 1);
3813 s390_lhi (code, ins->dreg, 0);
3818 s390_lhi (code, ins->dreg, 1);
3820 s390_lhi (code, ins->dreg, 0);
3825 s390_lhi (code, ins->dreg, 1);
3827 s390_lhi (code, ins->dreg, 0);
3832 s390_lhi (code, ins->dreg, 1);
3834 s390_lhi (code, ins->dreg, 0);
3837 case OP_COND_EXC_EQ:
3838 case OP_COND_EXC_IEQ:
3839 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
3841 case OP_COND_EXC_NE_UN:
3842 case OP_COND_EXC_INE_UN:
3843 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
3845 case OP_COND_EXC_LT:
3846 case OP_COND_EXC_ILT:
3847 case OP_COND_EXC_LT_UN:
3848 case OP_COND_EXC_ILT_UN:
3849 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
3851 case OP_COND_EXC_GT:
3852 case OP_COND_EXC_IGT:
3853 case OP_COND_EXC_GT_UN:
3854 case OP_COND_EXC_IGT_UN:
3855 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
3857 case OP_COND_EXC_GE:
3858 case OP_COND_EXC_IGE:
3859 case OP_COND_EXC_GE_UN:
3860 case OP_COND_EXC_IGE_UN:
3861 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
3863 case OP_COND_EXC_LE:
3864 case OP_COND_EXC_ILE:
3865 case OP_COND_EXC_LE_UN:
3866 case OP_COND_EXC_ILE_UN:
3867 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
3869 case OP_COND_EXC_OV:
3870 case OP_COND_EXC_IOV:
3871 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
3873 case OP_COND_EXC_NO:
3874 case OP_COND_EXC_INO:
3875 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
3878 case OP_COND_EXC_IC:
3879 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
3881 case OP_COND_EXC_NC:
3882 case OP_COND_EXC_INC:
3883 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
3886 EMIT_COND_BRANCH (ins, S390_CC_EQ);
3889 EMIT_COND_BRANCH (ins, S390_CC_NE);
3893 EMIT_COND_BRANCH (ins, S390_CC_LT);
3897 EMIT_COND_BRANCH (ins, S390_CC_GT);
3901 EMIT_COND_BRANCH (ins, S390_CC_GE);
3905 EMIT_COND_BRANCH (ins, S390_CC_LE);
3908 /* floating point opcodes */
3910 if (*((float *) ins->inst_p0) == 0) {
3911 s390_lzdr (code, ins->dreg);
3913 s390_basr (code, s390_r13, 0);
3915 s390_word (code, ins->inst_p0);
3916 s390_l (code, s390_r13, 0, s390_r13, 4);
3917 s390_ld (code, ins->dreg, 0, s390_r13, 0);
3922 if (*((float *) ins->inst_p0) == 0) {
3923 s390_lzdr (code, ins->dreg);
3925 s390_basr (code, s390_r13, 0);
3927 s390_word (code, ins->inst_p0);
3928 s390_l (code, s390_r13, 0, s390_r13, 4);
3929 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
3933 case OP_STORER8_MEMBASE_REG: {
3934 if (s390_is_uimm12(ins->inst_offset)) {
3935 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3937 s390_basr (code, s390_r13, 0);
3939 s390_word (code, ins->inst_offset);
3940 s390_l (code, s390_r13, 0, s390_r13, 4);
3941 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3945 case OP_LOADR8_MEMBASE: {
3946 if (s390_is_uimm12(ins->inst_offset)) {
3947 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3949 s390_basr (code, s390_r13, 0);
3951 s390_word (code, ins->inst_offset);
3952 s390_l (code, s390_r13, 0, s390_r13, 4);
3953 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3957 case OP_STORER4_MEMBASE_REG: {
3958 if (s390_is_uimm12(ins->inst_offset)) {
3959 s390_ledbr(code, s390_f15, ins->sreg1);
3960 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
3962 s390_basr (code, s390_r13, 0);
3964 s390_word (code, ins->inst_offset);
3965 s390_l (code, s390_r13, 0, s390_r13, 4);
3966 s390_ledbr(code, s390_f15, ins->sreg1);
3967 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
3971 case OP_LOADR4_MEMBASE: {
3972 if (s390_is_uimm12(ins->inst_offset)) {
3973 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3975 s390_basr (code, s390_r13, 0);
3977 s390_word (code, ins->inst_offset);
3978 s390_l (code, s390_r13, 0, s390_r13, 4);
3979 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3983 case OP_ICONV_TO_R_UN: {
3984 s390_cdfbr (code, ins->dreg, ins->sreg1);
3985 s390_ltr (code, ins->sreg1, ins->sreg1);
3986 s390_jnl (code, 12);
3987 s390_basr (code, s390_r13, 0);
3989 s390_word (code, 0x41f00000);
3990 s390_word (code, 0);
3991 s390_adb (code, ins->dreg, 0, s390_r13, 4);
3994 case OP_ICONV_TO_R4: {
3995 s390_cdfbr (code, ins->dreg, ins->sreg1);
3998 case OP_ICONV_TO_R8: {
3999 s390_cdfbr (code, ins->dreg, ins->sreg1);
4002 case OP_FCONV_TO_I1:
4003 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4005 case OP_FCONV_TO_U1:
4006 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4008 case OP_FCONV_TO_I2:
4009 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4011 case OP_FCONV_TO_U2:
4012 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4014 case OP_FCONV_TO_I4:
4016 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4018 case OP_FCONV_TO_U4:
4020 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4022 case OP_FCONV_TO_I8:
4023 case OP_FCONV_TO_U8:
4024 g_assert_not_reached ();
4025 /* Implemented as helper calls */
4027 case OP_LCONV_TO_R_UN:
4028 g_assert_not_reached ();
4029 /* Implemented as helper calls */
4031 case OP_LCONV_TO_OVF_I:
4032 case OP_LCONV_TO_OVF_I4_2: {
4033 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4035 s390_ltr (code, ins->sreg1, ins->sreg1);
4036 s390_jnl (code, 0); CODEPTR(code, o[0]);
4037 s390_ltr (code, ins->sreg2, ins->sreg2);
4038 s390_jnl (code, 0); CODEPTR(code, o[1]);
4039 s390_lhi (code, s390_r13, -1);
4040 s390_cr (code, ins->sreg2, s390_r13);
4041 s390_jnz (code, 0); CODEPTR(code, o[2]);
4042 s390_j (code, 0); CODEPTR(code, o[3]);
4043 PTRSLOT(code, o[0]);
4044 s390_ltr (code, ins->sreg2, ins->sreg2);
4045 s390_jz (code, 0); CODEPTR(code, o[4]);
4046 PTRSLOT(code, o[1]);
4047 PTRSLOT(code, o[2]);
4048 mono_add_patch_info (cfg, code - cfg->native_code,
4049 MONO_PATCH_INFO_EXC, "OverflowException");
4050 s390_brasl (code, s390_r14, 0);
4051 PTRSLOT(code, o[3]);
4052 PTRSLOT(code, o[4]);
4053 if (ins->dreg != ins->sreg1)
4054 s390_lr (code, ins->dreg, ins->sreg1);
4058 s390_sqdbr (code, ins->dreg, ins->sreg1);
4063 s390_adbr (code, ins->dreg, src2);
4067 CHECK_SRCDST_NCOM_F;
4068 s390_sdbr (code, ins->dreg, src2);
4073 s390_mdbr (code, ins->dreg, src2);
4077 CHECK_SRCDST_NCOM_F;
4078 s390_ddbr (code, ins->dreg, src2);
4082 s390_lcdbr (code, ins->dreg, ins->sreg1);
4086 CHECK_SRCDST_NCOM_F;
4087 s390_didbr (code, ins->dreg, src2, 5, s390_f15);
4091 s390_cdbr (code, ins->sreg1, ins->sreg2);
4095 s390_cdbr (code, ins->sreg1, ins->sreg2);
4096 s390_lhi (code, ins->dreg, 1);
4098 s390_lhi (code, ins->dreg, 0);
4102 s390_cdbr (code, ins->sreg1, ins->sreg2);
4103 s390_lhi (code, ins->dreg, 1);
4105 s390_lhi (code, ins->dreg, 0);
4109 s390_cdbr (code, ins->sreg1, ins->sreg2);
4110 s390_lhi (code, ins->dreg, 1);
4112 s390_lhi (code, ins->dreg, 0);
4116 s390_cdbr (code, ins->sreg1, ins->sreg2);
4117 s390_lhi (code, ins->dreg, 1);
4119 s390_lhi (code, ins->dreg, 0);
4123 s390_cdbr (code, ins->sreg1, ins->sreg2);
4124 s390_lhi (code, ins->dreg, 1);
4126 s390_lhi (code, ins->dreg, 0);
4131 s390_jo (code, 0); CODEPTR(code, o);
4132 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4137 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4141 s390_jo (code, 0); CODEPTR(code, o);
4142 EMIT_COND_BRANCH (ins, S390_CC_LT);
4147 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4151 s390_jo (code, 0); CODEPTR(code, o);
4152 EMIT_COND_BRANCH (ins, S390_CC_GT);
4157 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4161 s390_jo (code, 0); CODEPTR(code, o);
4162 EMIT_COND_BRANCH (ins, S390_CC_GE);
4167 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4171 s390_jo (code, 0); CODEPTR(code, o);
4172 EMIT_COND_BRANCH (ins, S390_CC_LE);
4177 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4181 s390_lhi (code, s390_r13, 0x7f);
4182 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4183 s390_jz (code, 0); CODEPTR(code, o);
4184 mono_add_patch_info (cfg, code - cfg->native_code,
4185 MONO_PATCH_INFO_EXC, "ArithmeticException");
4186 s390_brasl (code, s390_r14,0);
4190 case OP_S390_MOVE: {
4191 if (ins->backend.size > 0) {
4192 if (ins->backend.size <= 256) {
4193 s390_mvc (code, ins->backend.size, ins->dreg,
4194 ins->inst_offset, ins->sreg1, ins->inst_imm);
4196 s390_lr (code, s390_r0, ins->dreg);
4197 if (s390_is_imm16 (ins->inst_offset)) {
4198 s390_ahi (code, s390_r0, ins->inst_offset);
4200 s390_basr (code, s390_r13, 0);
4202 s390_word (code, ins->inst_offset);
4203 s390_a (code, s390_r0, 0, s390_r13, 4);
4205 s390_lr (code, s390_r14, s390_r12);
4206 s390_lr (code, s390_r12, ins->sreg1);
4207 if (s390_is_imm16 (ins->inst_imm)) {
4208 s390_ahi (code, s390_r12, ins->inst_imm);
4210 s390_basr (code, s390_r13, 0);
4212 s390_word (code, ins->inst_imm);
4213 s390_a (code, s390_r12, 0, s390_r13, 4);
4215 s390_lr (code, s390_r1, ins->sreg1);
4216 s390_lr (code, s390_r13, s390_r1);
4217 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4219 s390_lr (code, s390_r12, s390_r14);
4224 case OP_ATOMIC_ADD_I4: {
4225 s390_lr (code, s390_r1, ins->sreg2);
4226 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4227 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4228 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4229 s390_jnz (code, -7);
4230 s390_lr (code, ins->dreg, s390_r1);
4233 case OP_ATOMIC_ADD_NEW_I4: {
4234 s390_lr (code, s390_r1, ins->sreg2);
4235 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4236 s390_a (code, s390_r1, 0, ins->inst_basereg, ins->inst_offset);
4237 s390_cs (code, s390_r0, s390_r1, ins->inst_basereg, ins->inst_offset);
4238 s390_jnz (code, -7);
4239 s390_lr (code, ins->dreg, s390_r1);
4242 case OP_ATOMIC_EXCHANGE_I4: {
4243 s390_l (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
4244 s390_cs (code, s390_r0, ins->sreg2, ins->inst_basereg, ins->inst_offset);
4245 s390_jnz (code, -4);
4246 s390_lr (code, ins->dreg, s390_r0);
4249 case OP_S390_BKCHAIN: {
4250 s390_lr (code, ins->dreg, ins->sreg1);
4251 if (s390_is_imm16 (cfg->stack_offset)) {
4252 s390_ahi (code, ins->dreg, cfg->stack_offset);
4254 s390_basr (code, s390_r13, 0);
4256 s390_word (code, cfg->stack_offset);
4257 s390_a (code, ins->dreg, 0, s390_r13, 4);
4260 case OP_MEMORY_BARRIER: {
4264 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4265 g_assert_not_reached ();
4268 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4269 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4270 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4271 g_assert_not_reached ();
4277 last_offset = offset;
4280 cfg->code_len = code - cfg->native_code;
4283 /*========================= End of Function ========================*/
4285 /*------------------------------------------------------------------*/
4287 /* Name - mono_arch_register_lowlevel_calls */
4289 /* Function - Register routines to help with --trace operation. */
4291 /*------------------------------------------------------------------*/
4294 mono_arch_register_lowlevel_calls (void)
4296 mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
4299 /*========================= End of Function ========================*/
4301 /*------------------------------------------------------------------*/
4303 /* Name - mono_arch_patch_code */
4305 /* Function - Process the patch data created during the */
4306 /* instruction build process. This resolves jumps, */
4307 /* calls, variables etc. */
4309 /*------------------------------------------------------------------*/
4312 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain,
4313 guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4315 MonoJumpInfo *patch_info;
4317 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4318 unsigned char *ip = patch_info->ip.i + code;
4319 gconstpointer target = NULL;
4321 target = mono_resolve_patch_target (method, domain, code,
4322 patch_info, run_cctors);
4324 switch (patch_info->type) {
4325 case MONO_PATCH_INFO_IP:
4326 case MONO_PATCH_INFO_EXC_NAME:
4327 case MONO_PATCH_INFO_LDSTR:
4328 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
4329 case MONO_PATCH_INFO_LDTOKEN:
4330 case MONO_PATCH_INFO_EXC:
4332 case MONO_PATCH_INFO_SWITCH:
4333 /*----------------------------------*/
4334 /* ip points at the basr r13,0/j +4 */
4335 /* instruction the vtable value */
4336 /* follows this (i.e. ip+6) */
4337 /*----------------------------------*/
4338 *((gconstpointer *)(ip+6)) = target;
4341 case MONO_PATCH_INFO_METHODCONST:
4342 case MONO_PATCH_INFO_CLASS:
4343 case MONO_PATCH_INFO_IMAGE:
4344 case MONO_PATCH_INFO_FIELD:
4345 case MONO_PATCH_INFO_IID:
4346 target = S390_RELATIVE(target, ip);
4348 case MONO_PATCH_INFO_R4:
4349 case MONO_PATCH_INFO_R8:
4350 case MONO_PATCH_INFO_METHOD_REL:
4351 g_assert_not_reached ();
4354 target = S390_RELATIVE(target, ip);
4357 s390_patch (ip, (guint32) target);
4361 /*========================= End of Function ========================*/
4363 /*------------------------------------------------------------------*/
4365 /* Name - emit_load_volatile_registers */
4367 /* Function - Create the instruction sequence for loading the */
4368 /* parameter registers for use with the 'tail' op. */
4370 /* The register loading operations performed here */
4371 /* are the mirror of the store operations performed */
4372 /* in mono_arch_emit_prolog and need to be kept in */
4373 /* synchronization with it. */
4375 /*------------------------------------------------------------------*/
4378 emit_load_volatile_registers (guint8 * code, MonoCompile *cfg)
4380 MonoMethod *method = cfg->method;
4381 MonoMethodSignature *sig;
4386 sig = mono_method_signature (method);
4389 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4391 if (cinfo->struct_ret) {
4392 ArgInfo *ainfo = &cinfo->ret;
4393 inst = cfg->vret_addr;
4394 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4397 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4398 ArgInfo *ainfo = cinfo->args + i;
4399 inst = cfg->args [pos];
4401 if (inst->opcode == OP_REGVAR) {
4402 if (ainfo->regtype == RegTypeGeneral)
4403 s390_lr (code, ainfo->reg, inst->dreg);
4404 else if (ainfo->regtype == RegTypeFP) {
4405 if (inst->dreg != ainfo->reg) {
4406 if (ainfo->size == 4) {
4407 s390_ldebr (code, ainfo->reg, inst->dreg);
4409 s390_ldr (code, ainfo->reg, inst->dreg);
4413 else if (ainfo->regtype == RegTypeBase) {
4415 g_assert_not_reached ();
4417 if (ainfo->regtype == RegTypeGeneral) {
4418 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4419 g_assert_not_reached();
4420 switch (ainfo->size) {
4422 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4425 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4428 s390_lm (code, ainfo->reg, ainfo->reg + 1,
4429 inst->inst_basereg, inst->inst_offset);
4432 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4434 } else if (ainfo->regtype == RegTypeBase) {
4435 } else if (ainfo->regtype == RegTypeFP) {
4436 if (ainfo->size == 8)
4437 s390_ld (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4438 else if (ainfo->size == 4)
4439 s390_le (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4441 g_assert_not_reached ();
4442 } else if (ainfo->regtype == RegTypeStructByVal) {
4443 if (ainfo->reg != STK_BASE) {
4444 switch (ainfo->size) {
4446 s390_ic (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4449 s390_lh (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4452 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4455 s390_lm (code, ainfo->reg, ainfo->reg+1, inst->inst_basereg, inst->inst_offset);
4459 } else if (ainfo->regtype == RegTypeStructByAddr) {
4460 if (ainfo->reg != STK_BASE) {
4461 s390_l (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4464 g_assert_not_reached ();
4472 /*========================= End of Function ========================*/
4474 /*------------------------------------------------------------------*/
4476 /* Name - mono_arch_emit_prolog */
4478 /* Function - Create the instruction sequence for a function */
4481 /*------------------------------------------------------------------*/
4484 mono_arch_emit_prolog (MonoCompile *cfg)
4486 MonoMethod *method = cfg->method;
4488 MonoMethodSignature *sig;
4490 int alloc_size, pos, max_offset, i;
4496 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4499 cfg->code_size = 1024;
4500 cfg->native_code = code = g_malloc (cfg->code_size);
4502 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4504 if (cfg->arch.bkchain_reg != -1)
4505 s390_lr (code, cfg->arch.bkchain_reg, STK_BASE);
4507 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4508 cfg->used_int_regs |= 1 << 11;
4511 alloc_size = cfg->stack_offset;
4513 cfg->stack_usage = alloc_size;
4514 s390_lr (code, s390_r11, STK_BASE);
4515 if (s390_is_uimm16 (alloc_size)) {
4516 s390_ahi (code, STK_BASE, -alloc_size);
4518 int stackSize = alloc_size;
4519 while (stackSize > 32767) {
4520 s390_ahi (code, STK_BASE, -32767);
4523 s390_ahi (code, STK_BASE, -stackSize);
4525 s390_st (code, s390_r11, 0, STK_BASE, 0);
4527 if (cfg->frame_reg != STK_BASE)
4528 s390_lr (code, s390_r11, STK_BASE);
4530 /* compute max_offset in order to use short forward jumps
4531 * we always do it on s390 because the immediate displacement
4532 * for jumps is too small
4535 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4536 MonoInst *ins = bb->code;
4537 bb->max_offset = max_offset;
4539 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4542 MONO_BB_FOR_EACH_INS (bb, ins)
4543 max_offset += ((guint8 *)ins_get_spec (ins->opcode))[MONO_INST_LEN];
4546 /* load arguments allocated to register from the stack */
4547 sig = mono_method_signature (method);
4550 cinfo = get_call_info (cfg, cfg->mempool, sig, sig->pinvoke);
4552 if (cinfo->struct_ret) {
4553 ArgInfo *ainfo = &cinfo->ret;
4554 inst = cfg->vret_addr;
4555 inst->backend.size = ainfo->vtsize;
4556 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4559 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4560 ArgInfo *ainfo = cinfo->args + i;
4561 inst = cfg->args [pos];
4563 if (inst->opcode == OP_VTARG_ADDR)
4564 inst = inst->inst_left;
4566 if (inst->opcode == OP_REGVAR) {
4567 if (ainfo->regtype == RegTypeGeneral)
4568 s390_lr (code, inst->dreg, ainfo->reg);
4569 else if (ainfo->regtype == RegTypeFP) {
4570 if (inst->dreg != ainfo->reg) {
4571 if (ainfo->size == 4) {
4572 s390_ledbr (code, inst->dreg, ainfo->reg);
4574 s390_ldr (code, inst->dreg, ainfo->reg);
4578 else if (ainfo->regtype == RegTypeBase) {
4579 s390_lr (code, s390_r13, STK_BASE);
4580 s390_ahi (code, s390_r13, alloc_size);
4581 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4583 g_assert_not_reached ();
4585 if (cfg->verbose_level > 2)
4586 g_print ("Argument %d assigned to register %s\n",
4587 pos, mono_arch_regname (inst->dreg));
4589 if (ainfo->regtype == RegTypeGeneral) {
4590 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4591 g_assert_not_reached();
4592 switch (ainfo->size) {
4594 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4597 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4600 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4601 inst->inst_basereg, inst->inst_offset);
4604 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4606 } else if (ainfo->regtype == RegTypeBase) {
4607 } else if (ainfo->regtype == RegTypeFP) {
4608 if (ainfo->size == 8)
4609 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4610 else if (ainfo->size == 4)
4611 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4613 g_assert_not_reached ();
4614 } else if (ainfo->regtype == RegTypeStructByVal) {
4615 int doffset = inst->inst_offset;
4617 if (ainfo->reg != STK_BASE)
4621 s390_lr (code, s390_r13, STK_BASE);
4622 s390_ahi (code, s390_r13, alloc_size);
4624 switch (ainfo->size) {
4626 if (ainfo->reg == STK_BASE)
4627 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4628 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4631 if (ainfo->reg == STK_BASE)
4632 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4633 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4636 if (ainfo->reg == STK_BASE)
4637 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4638 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4641 if (ainfo->reg == STK_BASE)
4642 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4643 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4646 } else if (ainfo->regtype == RegTypeStructByAddr) {
4647 if (ainfo->reg != STK_BASE)
4648 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4650 g_assert_not_reached ();
4655 if (method->save_lmf) {
4656 /*---------------------------------------------------------------*/
4657 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4658 /*---------------------------------------------------------------*/
4659 lmfOffset = alloc_size - sizeof(MonoLMF);
4661 s390_lr (code, s390_r13, cfg->frame_reg);
4662 if (s390_is_uimm16(lmfOffset))
4663 s390_ahi (code, s390_r13, lmfOffset);
4665 s390_basr (code, s390_r14, 0);
4667 s390_word (code, lmfOffset);
4668 s390_a (code, s390_r13, 0, s390_r14, 4);
4671 /*---------------------------------------------------------------*/
4672 /* Preserve the parameter registers while we fix up the lmf */
4673 /*---------------------------------------------------------------*/
4674 s390_stm (code, s390_r2, s390_r6, s390_r13,
4675 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4677 /*---------------------------------------------------------------*/
4678 /* On return from this call r2 have the address of the &lmf */
4679 /*---------------------------------------------------------------*/
4680 mono_add_patch_info (cfg, code - cfg->native_code,
4681 MONO_PATCH_INFO_INTERNAL_METHOD,
4682 (gpointer)"mono_get_lmf_addr");
4683 s390_brasl (code, s390_r14, 0);
4685 /*---------------------------------------------------------------*/
4686 /* Set lmf.lmf_addr = jit_tls->lmf */
4687 /*---------------------------------------------------------------*/
4688 s390_st (code, s390_r2, 0, s390_r13,
4689 G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4691 /*---------------------------------------------------------------*/
4692 /* Get current lmf */
4693 /*---------------------------------------------------------------*/
4694 s390_l (code, s390_r0, 0, s390_r2, 0);
4696 /*---------------------------------------------------------------*/
4697 /* Set our lmf as the current lmf */
4698 /*---------------------------------------------------------------*/
4699 s390_st (code, s390_r13, 0, s390_r2, 0);
4701 /*---------------------------------------------------------------*/
4702 /* Have our lmf.previous_lmf point to the last lmf */
4703 /*---------------------------------------------------------------*/
4704 s390_st (code, s390_r0, 0, s390_r13,
4705 G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4707 /*---------------------------------------------------------------*/
4708 /* save method info */
4709 /*---------------------------------------------------------------*/
4710 s390_basr (code, s390_r1, 0);
4712 s390_word (code, method);
4713 s390_l (code, s390_r1, 0, s390_r1, 4);
4714 s390_st (code, s390_r1, 0, s390_r13,
4715 G_STRUCT_OFFSET(MonoLMF, method));
4717 /*---------------------------------------------------------------*/
4718 /* save the current IP */
4719 /*---------------------------------------------------------------*/
4720 s390_st (code, STK_BASE, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4721 s390_basr (code, s390_r1, 0);
4722 s390_la (code, s390_r1, 0, s390_r1, 0);
4723 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4725 /*---------------------------------------------------------------*/
4726 /* Save general and floating point registers */
4727 /*---------------------------------------------------------------*/
4728 s390_stm (code, s390_r2, s390_r12, s390_r13,
4729 G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4730 for (i = 0; i < 16; i++) {
4731 s390_std (code, i, 0, s390_r13,
4732 G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4735 /*---------------------------------------------------------------*/
4736 /* Restore the parameter registers now that we've set up the lmf */
4737 /*---------------------------------------------------------------*/
4738 s390_lm (code, s390_r2, s390_r6, s390_r13,
4739 G_STRUCT_OFFSET(MonoLMF, pregs[0]));
4743 code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
4745 cfg->code_len = code - cfg->native_code;
4747 g_assert (cfg->code_len < cfg->code_size);
4752 /*========================= End of Function ========================*/
4754 /*------------------------------------------------------------------*/
4756 /* Name - mono_arch_emit_epilog */
4758 /* Function - Emit the instructions for a function epilog. */
4760 /*------------------------------------------------------------------*/
4763 mono_arch_emit_epilog (MonoCompile *cfg)
4765 MonoMethod *method = cfg->method;
4768 int max_epilog_size = 96;
4770 if (cfg->method->save_lmf)
4771 max_epilog_size += 128;
4773 if (mono_jit_trace_calls != NULL)
4774 max_epilog_size += 128;
4776 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4777 max_epilog_size += 128;
4779 while ((cfg->code_len + max_epilog_size) > (cfg->code_size - 16)) {
4780 cfg->code_size *= 2;
4781 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4782 mono_jit_stats.code_reallocs++;
4785 code = cfg->native_code + cfg->code_len;
4787 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
4788 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
4792 if (method->save_lmf)
4793 restoreLMF(code, cfg->frame_reg, cfg->stack_usage);
4795 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
4796 s390_l (code, STK_BASE, 0, STK_BASE, 0);
4798 code = backUpStackPtr(cfg, code, STK_BASE);
4800 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4801 s390_br (code, s390_r14);
4803 cfg->code_len = code - cfg->native_code;
4805 g_assert (cfg->code_len < cfg->code_size);
4809 /*========================= End of Function ========================*/
4811 /*------------------------------------------------------------------*/
4813 /* Name - mono_arch_emit_exceptions */
4815 /* Function - Emit the blocks to handle exception conditions. */
4817 /*------------------------------------------------------------------*/
4820 mono_arch_emit_exceptions (MonoCompile *cfg)
4822 MonoJumpInfo *patch_info;
4828 MonoClass *exc_classes [MAX_EXC];
4829 guint8 *exc_throw_start [MAX_EXC];
4831 for (patch_info = cfg->patch_info;
4833 patch_info = patch_info->next) {
4834 if (patch_info->type == MONO_PATCH_INFO_EXC)
4838 code_size = exc_count * 26;
4840 while ((cfg->code_len + code_size) > (cfg->code_size - 16)) {
4841 cfg->code_size *= 2;
4842 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
4843 mono_jit_stats.code_reallocs++;
4846 code = cfg->native_code + cfg->code_len;
4848 /*---------------------------------------------------------------------*/
4849 /* Add code to raise exceptions */
4850 /*---------------------------------------------------------------------*/
4851 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4852 switch (patch_info->type) {
4853 case MONO_PATCH_INFO_EXC: {
4854 guint8 *ip = patch_info->ip.i + cfg->native_code;
4855 MonoClass *exc_class;
4858 /*-----------------------------------------------------*/
4859 /* Patch the branch in epilog to come here */
4860 /*-----------------------------------------------------*/
4861 s390_patch (ip + 2, (guint32) (S390_RELATIVE(code,ip)));
4863 exc_class = mono_class_from_name (mono_defaults.corlib,
4865 patch_info->data.name);
4866 g_assert (exc_class);
4867 throw_ip = patch_info->ip.i;
4869 for (iExc = 0; iExc < nThrows; ++iExc)
4870 if (exc_classes [iExc] == exc_class)
4873 if (iExc < nThrows) {
4874 s390_jcl (code, S390_CC_UN, (guint32) exc_throw_start [iExc]);
4875 patch_info->type = MONO_PATCH_INFO_NONE;
4878 if (nThrows < MAX_EXC) {
4879 exc_classes [nThrows] = exc_class;
4880 exc_throw_start [nThrows] = code;
4883 /*---------------------------------------------*/
4884 /* Patch the parameter passed to the handler */
4885 /*---------------------------------------------*/
4886 s390_basr (code, s390_r13, 0);
4888 s390_word (code, patch_info->data.target);
4889 /*---------------------------------------------*/
4890 /* Load return address & parameter register */
4891 /*---------------------------------------------*/
4892 s390_larl (code, s390_r14, (gsize)S390_RELATIVE((patch_info->ip.i +
4893 cfg->native_code + 8), code));
4894 s390_l (code, s390_r2, 0, s390_r13, 4);
4895 /*---------------------------------------------*/
4896 /* Reuse the current patch to set the jump */
4897 /*---------------------------------------------*/
4898 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
4899 patch_info->data.name = "mono_arch_throw_exception_by_name";
4900 patch_info->ip.i = code - cfg->native_code;
4901 s390_jcl (code, S390_CC_UN, 0);
4911 cfg->code_len = code - cfg->native_code;
4913 g_assert (cfg->code_len < cfg->code_size);
4917 /*========================= End of Function ========================*/
4919 /*------------------------------------------------------------------*/
4921 /* Name - mono_arch_setup_jit_tls_data */
4923 /* Function - Setup the JIT's Thread Level Specific Data. */
4925 /*------------------------------------------------------------------*/
4928 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
4931 if (!tls_offset_inited) {
4932 tls_offset_inited = TRUE;
4936 __asm__ ("\tear\t%r1,0\n"
4943 : "=r" (appdomain_tls_offset),
4944 "=r" (thread_tls_offset),
4945 "=r" (lmf_tls_offset)
4946 : "r" (&tls_appdomain),
4947 "r" (&tls_current_object),
4948 "r" (&mono_lmf_addr)
4954 if (!lmf_addr_key_inited) {
4955 lmf_addr_key_inited = TRUE;
4956 pthread_key_create (&lmf_addr_key, NULL);
4958 pthread_setspecific (lmf_addr_key, &tls->lmf);
4962 /*========================= End of Function ========================*/
4964 /*------------------------------------------------------------------*/
4966 /* Name - mono_arch_free_jit_tls_data */
4968 /* Function - Free tls data. */
4970 /*------------------------------------------------------------------*/
4973 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
4977 /*========================= End of Function ========================*/
4979 /*------------------------------------------------------------------*/
4981 /* Name - mono_arch_emit_inst_for_method */
4983 /*------------------------------------------------------------------*/
4986 mono_arch_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
4991 /*========================= End of Function ========================*/
4993 /*------------------------------------------------------------------*/
4995 /* Name - mono_arch_decompose_opts */
4997 /*------------------------------------------------------------------*/
5000 mono_arch_decompose_opts (MonoCompile *cfg, MonoInst *ins)
5002 switch (ins->opcode) {
5004 ins->opcode = OP_S390_ISUB_OVF;
5006 case OP_ISUB_OVF_UN:
5007 ins->opcode = OP_S390_ISUB_OVF_UN;
5010 ins->opcode = OP_S390_IADD_OVF;
5012 case OP_IADD_OVF_UN:
5013 ins->opcode = OP_S390_IADD_OVF_UN;
5020 /*========================= End of Function ========================*/
5022 /*------------------------------------------------------------------*/
5024 /* Name - mono_arch_decompose_long_opts */
5026 /*------------------------------------------------------------------*/
5029 mono_arch_decompose_long_opts (MonoCompile *cfg, MonoInst *ins)
5031 // The generic code seems to work for OP_LSUB fine on s390, why is a different
5032 // implementation needed ? gcc also seems to use the different implementation.
5033 // FIXME: What about the other OP_L opcodes below ?
5035 switch (ins->opcode) {
5037 case OP_LADD_OVF_UN:
5039 case OP_LSUB_OVF_UN: {
5042 switch (ins->opcode) {
5044 opcode = OP_S390_LADD;
5047 opcode = OP_S390_LADD_OVF;
5049 case OP_LADD_OVF_UN:
5050 opcode = OP_S390_LADD_OVF_UN;
5053 opcode = OP_S390_LSUB;
5056 opcode = OP_S390_LSUB_OVF;
5058 case OP_LSUB_OVF_UN:
5059 opcode = OP_S390_LSUB_OVF_UN;
5062 g_assert_not_reached ();
5065 /* These hard regs make ssa crazy */
5066 cfg->disable_ssa = TRUE;
5067 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r0, ins->sreg1 + 1);
5068 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, s390_r1, ins->sreg1 + 2);
5069 MONO_EMIT_NEW_BIALU (cfg, opcode, ins->dreg, ins->sreg2 + 1, ins->sreg2 + 2);
5074 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5075 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5076 MONO_EMIT_NEW_BIALU (cfg, OP_LADD, ins->dreg, ins->sreg1, dreg);
5081 int dreg = mono_alloc_dreg (cfg, STACK_I8);
5082 MONO_EMIT_NEW_I8CONST (cfg, dreg, ins->inst_l);
5083 MONO_EMIT_NEW_BIALU (cfg, OP_LSUB, ins->dreg, ins->sreg1, dreg);
5088 MONO_EMIT_NEW_BIALU (cfg, OP_S390_LNEG, ins->dreg, ins->sreg1 + 1, ins->sreg1 + 2);
5093 ins->opcode = OP_S390_ISUB_OVF;
5095 case OP_ISUB_OVF_UN:
5096 ins->opcode = OP_S390_ISUB_OVF_UN;
5103 /*========================= End of Function ========================*/
5105 /*------------------------------------------------------------------*/
5107 /* Name - mono_arch_print_tree */
5109 /* Function - Print platform-specific opcode details. */
5111 /* Returns - 1 - opcode details have been printed */
5112 /* 0 - opcode details have not been printed */
5114 /*------------------------------------------------------------------*/
5117 mono_arch_print_tree (MonoInst *tree, int arity)
5121 switch (tree->opcode) {
5122 case OP_S390_LOADARG:
5123 case OP_S390_ARGREG:
5124 case OP_S390_ARGPTR:
5125 printf ("[0x%lx(%s)]", tree->inst_offset,
5126 mono_arch_regname (tree->inst_basereg));
5129 case OP_S390_STKARG:
5130 printf ("[0x%lx(previous_frame)]",
5135 printf ("[0x%lx(%d,%s),0x%lx(%s)]",
5136 tree->inst_offset, tree->backend.size,
5137 mono_arch_regname(tree->dreg), tree->inst_imm,
5138 mono_arch_regname(tree->sreg1));
5141 case OP_S390_SETF4RET:
5143 mono_arch_fregname (tree->dreg),
5144 mono_arch_fregname (tree->sreg1));
5148 printf ("[0x%lx(0x%lx,%s)]", tree->inst_offset,
5150 mono_arch_regname (tree->sreg1));
5153 case OP_S390_BKCHAIN:
5154 printf ("[previous_frame(%s)]",
5155 mono_arch_regname (tree->sreg1));
5164 /*========================= End of Function ========================*/
5166 /*------------------------------------------------------------------*/
5168 /* Name - mono_arch_regalloc_cost */
5170 /* Function - Determine the cost, in the number of memory */
5171 /* references, of the action of allocating the var- */
5172 /* iable VMV into a register during global register */
5175 /* Returns - Cost */
5177 /*------------------------------------------------------------------*/
5180 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5186 /*========================= End of Function ========================*/
5188 /*------------------------------------------------------------------*/
5190 /* Name - mono_arch_get_domain_intrinsic */
5196 /*------------------------------------------------------------------*/
5199 mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5203 if (appdomain_tls_offset == -1)
5206 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5207 ins->inst_offset = appdomain_tls_offset;
5211 /*========================= End of Function ========================*/
5213 /*------------------------------------------------------------------*/
5215 /* Name - mono_arch_get_thread_intrinsic */
5221 /*------------------------------------------------------------------*/
5224 mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5228 if (thread_tls_offset == -1)
5231 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
5232 ins->inst_offset = thread_tls_offset;
5236 /*========================= End of Function ========================*/
5238 /*------------------------------------------------------------------*/
5240 /* Name - mono_arch_flush_register_windows */
5246 /*------------------------------------------------------------------*/
5249 mono_arch_flush_register_windows (void)
5253 /*========================= End of Function ========================*/
5255 /*------------------------------------------------------------------*/
5257 /* Name - mono_arch_get_lmf_addr */
5263 /*------------------------------------------------------------------*/
5266 mono_arch_get_lmf_addr (void)
5268 return pthread_getspecific (lmf_addr_key);
5272 /*========================= End of Function ========================*/
5274 /*------------------------------------------------------------------*/
5276 /* Name - mono_arch_get_patch_offset */
5278 /* Function - Dummy entry point until s390x supports aot. */
5280 /* Returns - Offset for patch. */
5282 /*------------------------------------------------------------------*/
5285 mono_arch_get_patch_offset (guint8 *code)
5290 /*========================= End of Function ========================*/
5292 /*------------------------------------------------------------------*/
5294 /* Name - mono_arch_context_get_int_reg. */
5296 /* Function - Dummy entry point until s390x supports aot. */
5298 /* Returns - Pointer to intreg. */
5300 /*------------------------------------------------------------------*/
5303 mono_arch_context_get_int_reg (MonoContext *ctx, int reg)
5305 /* FIXME: implement */
5306 g_assert_not_reached ();
5310 /*========================= End of Function ========================*/