1 /*------------------------------------------------------------------*/
3 /* Name - mini-s390.c */
5 /* Function - S/390 backend for the Mono code generator. */
7 /* Name - Neale Ferguson (Neale.Ferguson@SoftwareAG-usa.com) */
9 /* Date - January, 2004 */
11 /* Derivation - From mini-x86 & mini-ppc by - */
12 /* Paolo Molaro (lupus@ximian.com) */
13 /* Dietmar Maurer (dietmar@ximian.com) */
15 /*------------------------------------------------------------------*/
17 /*------------------------------------------------------------------*/
19 /*------------------------------------------------------------------*/
21 #define NOT_IMPLEMENTED(x) \
22 g_error ("FIXME: %s is not yet implemented. (trampoline)", x);
24 #define EMIT_COND_BRANCH(ins,cond) \
26 if (ins->flags & MONO_INST_BRLABEL) { \
27 if (ins->inst_i0->inst_c0) { \
29 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
30 if (s390_is_uimm16(displace)) { \
31 s390_brc (code, cond, displace); \
33 s390_jcl (code, cond, displace); \
36 mono_add_patch_info (cfg, code - cfg->native_code, \
37 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
38 s390_jcl (code, cond, 0); \
41 if (ins->inst_true_bb->native_offset) { \
43 displace = ((cfg->native_code + \
44 ins->inst_true_bb->native_offset) - code) / 2; \
45 if (s390_is_uimm16(displace)) { \
46 s390_brc (code, cond, displace); \
48 s390_jcl (code, cond, displace); \
51 mono_add_patch_info (cfg, code - cfg->native_code, \
52 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
53 s390_jcl (code, cond, 0); \
58 #define EMIT_UNCOND_BRANCH(ins) \
60 if (ins->flags & MONO_INST_BRLABEL) { \
61 if (ins->inst_i0->inst_c0) { \
63 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
64 if (s390_is_uimm16(displace)) { \
65 s390_brc (code, S390_CC_UN, displace); \
67 s390_jcl (code, S390_CC_UN, displace); \
70 mono_add_patch_info (cfg, code - cfg->native_code, \
71 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
72 s390_jcl (code, S390_CC_UN, 0); \
75 if (ins->inst_target_bb->native_offset) { \
77 displace = ((cfg->native_code + \
78 ins->inst_target_bb->native_offset) - code) / 2; \
79 if (s390_is_uimm16(displace)) { \
80 s390_brc (code, S390_CC_UN, displace); \
82 s390_jcl (code, S390_CC_UN, displace); \
85 mono_add_patch_info (cfg, code - cfg->native_code, \
86 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
87 s390_jcl (code, S390_CC_UN, 0); \
92 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
94 mono_add_patch_info (cfg, code - cfg->native_code, \
95 MONO_PATCH_INFO_EXC, exc_name); \
96 s390_jcl (code, cond, 0); \
100 #define DEBUG(a) if (cfg->verbose_level > 1) a
101 #define reg_is_freeable(r) ((r) >= 3 && (r) <= 10)
102 #define freg_is_freeable(r) ((r) >= 1 && (r) <= 14)
104 /*----------------------------------------*/
105 /* use s390_r3-s390_r10 as temp registers */
106 /*----------------------------------------*/
107 #define S390_CALLER_REGS (0x03f8)
109 /*----------------------------------------*/
110 /* use s390_f2-s390_f14 as temp registers */
111 /*----------------------------------------*/
112 #define S390_CALLER_FREGS (0x73f8)
114 #define S390_TRACE_STACK_SIZE (5*sizeof(gint64)+3*sizeof(gdouble))
116 /*========================= End of Defines =========================*/
118 /*------------------------------------------------------------------*/
119 /* I n c l u d e s */
120 /*------------------------------------------------------------------*/
125 #include <mono/metadata/appdomain.h>
126 #include <mono/metadata/debug-helpers.h>
127 #include <mono/metadata/profiler-private.h>
128 #include <mono/utils/mono-math.h>
130 #include "mini-s390x.h"
132 #include "cpu-s390x.h"
134 /*========================= End of Includes ========================*/
136 /*------------------------------------------------------------------*/
137 /* T y p e d e f s */
138 /*------------------------------------------------------------------*/
147 /*------------------------------------------------------------------*/
148 /* Used by the instrument_emit_epilog */
149 /*------------------------------------------------------------------*/
166 typedef struct InstList InstList;
183 gint32 offset; /* offset from caller's stack */
184 gint32 offparm; /* offset on callee's stack */
185 guint16 vtsize; /* in param area */
187 guint8 regtype; /* See RegType* */
188 guint32 size; /* Size of structure used by RegTypeStructByVal */
200 gint64 gr[5]; /* R2-R6 */
201 gdouble fp[3]; /* F0-F2 */
202 } __attribute__ ((packed)) RegParm;
204 /*========================= End of Typedefs ========================*/
206 /*------------------------------------------------------------------*/
207 /* P r o t o t y p e s */
208 /*------------------------------------------------------------------*/
210 static guint8 * emit_memcpy (guint8 *, int, int, int, int, int);
211 static void indent (int);
212 static guint8 * restoreLMF(MonoCompile *, guint8 *);
213 static guint8 * backUpStackPtr(MonoCompile *, guint8 *);
214 static void decodeParm (MonoType *, void *, int);
215 static void enter_method (MonoMethod *, RegParm *, char *);
216 static void leave_method (MonoMethod *, ...);
217 static gboolean is_regsize_var (MonoType *);
218 static void add_general (guint *, size_data *, ArgInfo *);
219 static CallInfo * calculate_sizes (MonoMethodSignature *, size_data *, gboolean);
220 static void peephole_pass (MonoCompile *, MonoBasicBlock *);
221 static int mono_spillvar_offset (MonoCompile *, int);
222 static int mono_spillvar_offset_float (MonoCompile *, int);
223 static void print_ins (int, MonoInst *);
224 static void print_regtrack (RegTrack *, int);
225 static InstList * inst_list_prepend (MonoMemPool *, InstList *, MonoInst *);
226 static int get_register_force_spilling (MonoCompile *, InstList *, MonoInst *, int);
227 static int get_register_spilling (MonoCompile *, InstList *, MonoInst *, guint32, int);
228 static int get_float_register_spilling (MonoCompile *, InstList *, MonoInst *, guint32, int);
229 static MonoInst * create_copy_ins (MonoCompile *, int, int, MonoInst *);
230 static MonoInst * create_copy_ins_float (MonoCompile *, int, int, MonoInst *);
231 static MonoInst * create_spilled_store (MonoCompile *, int, int, int, MonoInst *);
232 static MonoInst * create_spilled_store_float (MonoCompile *, int, int, int, MonoInst *);
233 static void insert_before_ins (MonoInst *, InstList *, MonoInst *);
234 static int alloc_int_reg (MonoCompile *, InstList *, MonoInst *, int, guint32);
235 static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
236 static unsigned char * mono_emit_stack_alloc (guchar *, MonoInst *);
238 /*========================= End of Prototypes ======================*/
240 /*------------------------------------------------------------------*/
241 /* G l o b a l V a r i a b l e s */
242 /*------------------------------------------------------------------*/
244 int mono_exc_esp_offset = 0;
246 static int indent_level = 0;
248 static const char*const * ins_spec = s390x;
250 /*====================== End of Global Variables ===================*/
252 /*------------------------------------------------------------------*/
254 /* Name - mono_arch_regname */
256 /* Function - Returns the name of the register specified by */
257 /* the input parameter. */
259 /*------------------------------------------------------------------*/
262 mono_arch_regname (int reg) {
263 static const char * rnames[] = {
264 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
265 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
266 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
269 if (reg >= 0 && reg < 16)
274 /*========================= End of Function ========================*/
276 /*------------------------------------------------------------------*/
278 /* Name - mono_arch_is_inst_imm */
280 /* Function - Determine whether an instruction qualifies as an */
283 /*------------------------------------------------------------------*/
286 mono_arch_is_inst_imm (gint64 imm)
288 return s390_is_imm16 (imm);
291 /*========================= End of Function ========================*/
293 /*------------------------------------------------------------------*/
295 /* Name - emit_memcpy */
297 /* Function - Emit code to move from memory-to-memory based on */
298 /* the size of the variable. r0 is overwritten. */
300 /*------------------------------------------------------------------*/
303 emit_memcpy (guint8 *code, int size, int dreg, int doffset, int sreg, int soffset)
307 s390_l (code, s390_r0, 0, sreg, soffset);
308 s390_st (code, s390_r0, 0, dreg, doffset);
312 s390_icm (code, s390_r0, 14, sreg, soffset);
313 s390_stcm (code, s390_r0, 14, dreg, doffset);
317 s390_lh (code, s390_r0, 0, sreg, soffset);
318 s390_sth (code, s390_r0, 0, dreg, doffset);
322 s390_ic (code, s390_r0, 0, sreg, soffset);
323 s390_stc (code, s390_r0, 0, dreg, doffset);
334 s390_mvc (code, len, dreg, doffset, sreg, soffset);
341 /*========================= End of Function ========================*/
343 /*------------------------------------------------------------------*/
345 /* Name - arch_get_argument_info */
347 /* Function - Gathers information on parameters such as size, */
348 /* alignment, and padding. arg_info should be large */
349 /* enough to hold param_count + 1 entries. */
351 /* Parameters - @csig - Method signature */
352 /* @param_count - No. of parameters to consider */
353 /* @arg_info - An array to store the result info */
355 /* Returns - Size of the activation frame */
357 /*------------------------------------------------------------------*/
360 mono_arch_get_argument_info (MonoMethodSignature *csig,
362 MonoJitArgumentInfo *arg_info)
364 int k, frame_size = 0;
365 int size, align, pad;
368 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
369 frame_size += sizeof (gpointer);
373 arg_info [0].offset = offset;
376 frame_size += sizeof (gpointer);
380 arg_info [0].size = frame_size;
382 for (k = 0; k < param_count; k++) {
385 size = mono_type_native_stack_size (csig->params [k], &align);
387 size = mono_type_stack_size (csig->params [k], &align);
389 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
390 arg_info [k].pad = pad;
392 arg_info [k + 1].pad = 0;
393 arg_info [k + 1].size = size;
395 arg_info [k + 1].offset = offset;
399 align = MONO_ARCH_FRAME_ALIGNMENT;
400 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
401 arg_info [k].pad = pad;
406 /*========================= End of Function ========================*/
408 /*------------------------------------------------------------------*/
410 /* Name - restoreLMF */
412 /* Function - Restore the LMF state prior to exiting a method. */
414 /*------------------------------------------------------------------*/
416 static inline guint8 *
417 restoreLMF(MonoCompile *cfg, guint8 *code)
421 s390_lgr (code, s390_r13, cfg->frame_reg);
423 lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
425 /*-------------------------------------------------*/
427 /*-------------------------------------------------*/
428 s390_aghi (code, s390_r13, lmfOffset);
430 /*-------------------------------------------------*/
431 /* r6 = &jit_tls->lmf */
432 /*-------------------------------------------------*/
433 s390_lg (code, s390_r6, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, lmf_addr));
435 /*-------------------------------------------------*/
436 /* r0 = lmf.previous_lmf */
437 /*-------------------------------------------------*/
438 s390_lg (code, s390_r0, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, previous_lmf));
440 /*-------------------------------------------------*/
441 /* jit_tls->lmf = previous_lmf */
442 /*-------------------------------------------------*/
443 s390_lg (code, s390_r13, 0, s390_r6, 0);
444 s390_stg (code, s390_r0, 0, s390_r6, 0);
448 /*========================= End of Function ========================*/
450 /*------------------------------------------------------------------*/
452 /* Name - backStackPtr. */
454 /* Function - Restore Stack Pointer to previous frame. */
456 /*------------------------------------------------------------------*/
458 static inline guint8 *
459 backUpStackPtr(MonoCompile *cfg, guint8 *code)
461 int stackSize = cfg->stack_usage;
463 if (s390_is_imm16 (cfg->stack_usage)) {
464 s390_aghi (code, STK_BASE, cfg->stack_usage);
466 while (stackSize > 32767) {
467 s390_aghi (code, STK_BASE, 32767);
470 s390_aghi (code, STK_BASE, stackSize);
475 /*========================= End of Function ========================*/
477 /*------------------------------------------------------------------*/
481 /* Function - Perform nice indenting to current level */
483 /*------------------------------------------------------------------*/
489 indent_level += diff;
496 indent_level += diff;
499 /*========================= End of Function ========================*/
501 /*------------------------------------------------------------------*/
503 /* Name - decodeParm */
505 /* Function - Decode a parameter for the trace. */
507 /*------------------------------------------------------------------*/
510 decodeParm(MonoType *type, void *curParm, int size)
515 printf("[BYREF:%p], ", *((char **) curParm));
517 simpleType = type->type;
519 switch (simpleType) {
521 printf ("[INTPTR:%p], ", *((int **) curParm));
524 printf ("[UINTPTR:%p], ", *((int **) curParm));
526 case MONO_TYPE_BOOLEAN :
527 printf ("[BOOL:%p], ", *((int *) curParm));
529 case MONO_TYPE_CHAR :
530 printf ("[CHAR:%p], ", *((int *) curParm));
533 printf ("[INT1:%d], ", *((int *) curParm));
536 printf ("[INT2:%d], ", *((int *) curParm));
539 printf ("[INT4:%d], ", *((int *) curParm));
542 printf ("[UINT1:%ud], ", *((unsigned int *) curParm));
545 printf ("[UINT2:%ud], ", *((guint16 *) curParm));
548 printf ("[UINT4:%ud], ", *((guint32 *) curParm));
551 printf ("[UINT8:%ul], ", *((guint64 *) curParm));
553 case MONO_TYPE_STRING : {
554 MonoString *s = *((MonoString **) curParm);
556 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
557 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
559 printf("[STRING:null], ");
563 case MONO_TYPE_CLASS :
564 case MONO_TYPE_OBJECT : {
565 MonoObject *obj = *((MonoObject **) curParm);
568 printf("[CLASS/OBJ:");
569 class = obj->vtable->klass;
570 if (class == mono_defaults.string_class) {
571 printf("[STRING:%p:%s]",
572 *obj, mono_string_to_utf8 (obj));
573 } else if (class == mono_defaults.int32_class) {
574 printf("[INT32:%p:%d]",
575 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
578 class->name_space, class->name, obj);
581 printf("[OBJECT:null], ");
586 printf("[PTR:%p], ", *((gpointer **) (curParm)));
588 case MONO_TYPE_FNPTR :
589 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
591 case MONO_TYPE_ARRAY :
592 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
594 case MONO_TYPE_SZARRAY :
595 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
598 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
601 printf("[FLOAT4:%f], ", *((float *) (curParm)));
604 printf("[FLOAT8:%g], ", *((double *) (curParm)));
606 case MONO_TYPE_VALUETYPE : {
608 if (type->data.klass->enumtype) {
609 simpleType = type->data.klass->enum_basetype->type;
610 printf("{VALUETYPE} - ");
613 printf("[VALUETYPE:");
614 for (i = 0; i < size; i++)
615 printf("%02x,", *((guint8 *)curParm+i));
620 printf("[?? - %d], ",simpleType);
625 /*========================= End of Function ========================*/
627 /*------------------------------------------------------------------*/
629 /* Name - enter_method */
631 /* Function - Perform tracing of the entry to the current */
634 /*------------------------------------------------------------------*/
637 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
639 int i, oParm = 0, iParm = 0;
642 MonoJitArgumentInfo *arg_info;
643 MonoMethodSignature *sig;
651 fname = mono_method_full_name (method, TRUE);
653 printf ("ENTER: %s(", fname);
656 ip = (*(guint64 *) (sp+S390_RET_ADDR_OFFSET));
657 printf (") ip: %p sp: %p - ", ip, sp);
662 sig = mono_method_signature (method);
664 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
666 if (cinfo->struct_ret) {
667 printf ("[VALUERET:%p], ", rParm->gr[0]);
672 gpointer *this = (gpointer *) rParm->gr[iParm];
673 obj = (MonoObject *) this;
674 if (method->klass->valuetype) {
676 printf("this:[value:%p:%08x], ",
677 this, *((guint64 *)(this+sizeof(MonoObject))));
679 printf ("this:[NULL], ");
682 class = obj->vtable->klass;
683 if (class == mono_defaults.string_class) {
684 printf ("this:[STRING:%p:%s], ",
685 obj, mono_string_to_utf8 ((MonoString *)obj));
687 printf ("this:%p[%s.%s], ",
688 obj, class->name_space, class->name);
691 printf ("this:NULL, ");
696 for (i = 0; i < sig->param_count; ++i) {
697 ainfo = cinfo->args + (i + oParm);
698 switch (ainfo->regtype) {
699 case RegTypeGeneral :
700 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
703 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
706 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
708 case RegTypeStructByVal :
709 if (ainfo->reg != STK_BASE)
710 curParm = &(rParm->gr[ainfo->reg-2]);
712 curParm = sp+ainfo->offset;
714 switch (ainfo->vtsize) {
720 decodeParm(sig->params[i],
725 decodeParm(sig->params[i],
726 *((char **) curParm),
730 case RegTypeStructByAddr :
731 if (ainfo->reg != STK_BASE)
732 curParm = &(rParm->gr[ainfo->reg-2]);
734 curParm = sp+ainfo->offset;
736 decodeParm(sig->params[i],
737 *((char **) curParm),
749 /*========================= End of Function ========================*/
751 /*------------------------------------------------------------------*/
753 /* Name - leave_method */
757 /*------------------------------------------------------------------*/
760 leave_method (MonoMethod *method, ...)
767 va_start(ap, method);
769 fname = mono_method_full_name (method, TRUE);
771 printf ("LEAVE: %s", fname);
774 type = mono_method_signature (method)->ret;
777 switch (type->type) {
780 case MONO_TYPE_BOOLEAN: {
781 int val = va_arg (ap, int);
783 printf ("[TRUE:%d]", val);
789 case MONO_TYPE_CHAR: {
790 int val = va_arg (ap, int);
791 printf ("[CHAR:%d]", val);
795 int val = va_arg (ap, int);
796 printf ("[INT1:%d]", val);
800 int val = va_arg (ap, int);
801 printf ("[UINT1:%d]", val);
805 int val = va_arg (ap, int);
806 printf ("[INT2:%d]", val);
810 int val = va_arg (ap, int);
811 printf ("[UINT2:%d]", val);
815 int val = va_arg (ap, int);
816 printf ("[INT4:%d]", val);
820 int val = va_arg (ap, int);
821 printf ("[UINT4:%d]", val);
825 int *val = va_arg (ap, int*);
826 printf ("[INT:%d]", val);
831 int *val = va_arg (ap, int*);
832 printf ("[UINT:%d]", val);
836 case MONO_TYPE_STRING: {
837 MonoString *s = va_arg (ap, MonoString *);
840 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
841 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
843 printf ("[STRING:null], ");
846 case MONO_TYPE_CLASS:
847 case MONO_TYPE_OBJECT: {
848 MonoObject *o = va_arg (ap, MonoObject *);
851 if (o->vtable->klass == mono_defaults.boolean_class) {
852 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
853 } else if (o->vtable->klass == mono_defaults.int32_class) {
854 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
855 } else if (o->vtable->klass == mono_defaults.int64_class) {
856 printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
858 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
860 printf ("[OBJECT:%p]", o);
865 case MONO_TYPE_FNPTR:
866 case MONO_TYPE_ARRAY:
867 case MONO_TYPE_SZARRAY: {
868 gpointer p = va_arg (ap, gpointer);
869 printf ("[result=%p]", p);
873 gint64 l = va_arg (ap, gint64);
874 printf ("[LONG:%lld]", l);
878 double f = va_arg (ap, double);
879 printf ("[FLOAT4:%f]\n", (float) f);
883 double f = va_arg (ap, double);
884 printf ("[FLOAT8:%g]\n", f);
887 case MONO_TYPE_VALUETYPE:
888 if (type->data.klass->enumtype) {
889 type = type->data.klass->enum_basetype;
892 guint8 *p = va_arg (ap, gpointer);
894 size = mono_type_size (type, &align);
896 for (j = 0; p && j < size; j++)
897 printf ("%02x,", p [j]);
902 printf ("(unknown return type %x)",
903 mono_method_signature (method)->ret->type);
906 ip = ((gint64) __builtin_return_address (0));
907 printf (" ip: %p\n", ip);
910 /*========================= End of Function ========================*/
912 /*------------------------------------------------------------------*/
914 /* Name - mono_arch_cpu_init */
916 /* Function - Perform CPU specific initialization to execute */
919 /*------------------------------------------------------------------*/
922 mono_arch_cpu_init (void)
926 /*--------------------------------------*/
927 /* Set default rounding mode for FP */
928 /*--------------------------------------*/
929 __asm__ ("SRNM\t%0\n\t"
933 /*========================= End of Function ========================*/
935 /*------------------------------------------------------------------*/
937 /* Name - mono_arch_cpu_optimizazions */
939 /* Function - Returns the optimizations supported on this CPU */
941 /*------------------------------------------------------------------*/
944 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
948 /* no s390-specific optimizations yet */
949 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
953 /*========================= End of Function ========================*/
955 /*------------------------------------------------------------------*/
961 /*------------------------------------------------------------------*/
964 is_regsize_var (MonoType *t) {
975 case MONO_TYPE_OBJECT:
976 case MONO_TYPE_STRING:
977 case MONO_TYPE_CLASS:
978 case MONO_TYPE_SZARRAY:
979 case MONO_TYPE_ARRAY:
981 case MONO_TYPE_VALUETYPE:
982 if (t->data.klass->enumtype)
983 return is_regsize_var (t->data.klass->enum_basetype);
989 /*========================= End of Function ========================*/
991 /*------------------------------------------------------------------*/
993 /* Name - mono_arch_get_allocatable_int_vars */
997 /*------------------------------------------------------------------*/
1000 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
1005 for (i = 0; i < cfg->num_varinfo; i++) {
1006 MonoInst *ins = cfg->varinfo [i];
1007 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
1010 if (vmv->range.first_use.abs_pos > vmv->range.last_use.abs_pos)
1013 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
1014 (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
1017 /* we can only allocate 32 bit values */
1018 if (is_regsize_var (ins->inst_vtype)) {
1019 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1020 g_assert (i == vmv->idx);
1021 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1028 /*========================= End of Function ========================*/
1030 /*------------------------------------------------------------------*/
1032 /* Name - mono_arch_global_int_regs */
1034 /* Function - Return a list of usable integer registers. */
1036 /*------------------------------------------------------------------*/
1039 mono_arch_get_global_int_regs (MonoCompile *cfg)
1044 for (i = 3; i < top; ++i)
1045 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1050 /*========================= End of Function ========================*/
1052 /*------------------------------------------------------------------*/
1054 /* Name - mono_arch_flush_icache */
1056 /* Function - Flush the CPU icache. */
1058 /*------------------------------------------------------------------*/
1061 mono_arch_flush_icache (guint8 *code, gint size)
1065 /*========================= End of Function ========================*/
1067 /*------------------------------------------------------------------*/
1069 /* Name - add_general */
1071 /* Function - Determine code and stack size incremements for a */
1074 /*------------------------------------------------------------------*/
1077 add_general (guint *gr, size_data *sz, ArgInfo *ainfo)
1079 if (*gr > S390_LAST_ARG_REG) {
1080 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1081 ainfo->offset = sz->stack_size;
1082 ainfo->reg = STK_BASE;
1083 ainfo->regtype = RegTypeBase;
1084 sz->stack_size += sizeof(int);
1085 sz->code_size += 12;
1093 /*========================= End of Function ========================*/
1095 /*------------------------------------------------------------------*/
1097 /* Name - calculate_sizes */
1099 /* Function - Determine the amount of space required for code */
1100 /* and stack. In addition determine starting points */
1101 /* for stack-based parameters, and area for struct- */
1102 /* ures being returned on the stack. */
1104 /*------------------------------------------------------------------*/
1107 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1108 gboolean string_ctor)
1110 guint i, fr, gr, size, nWords;
1111 int nParm = sig->hasthis + sig->param_count;
1112 guint32 simpletype, align;
1113 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1118 cinfo->struct_ret = 0;
1120 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1124 /*----------------------------------------------------------*/
1125 /* We determine the size of the return code/stack in case we*/
1126 /* need to reserve a register to be used to address a stack */
1127 /* area that the callee will use. */
1128 /*----------------------------------------------------------*/
1130 simpletype = sig->ret->type;
1132 switch (simpletype) {
1133 case MONO_TYPE_BOOLEAN:
1138 case MONO_TYPE_CHAR:
1143 case MONO_TYPE_CLASS:
1144 case MONO_TYPE_OBJECT:
1145 case MONO_TYPE_SZARRAY:
1146 case MONO_TYPE_ARRAY:
1148 case MONO_TYPE_FNPTR:
1149 case MONO_TYPE_STRING:
1150 cinfo->ret.reg = s390_r2;
1155 cinfo->ret.reg = s390_f0;
1160 cinfo->ret.reg = s390_r2;
1163 case MONO_TYPE_VALUETYPE:
1164 if (sig->ret->data.klass->enumtype) {
1165 simpletype = sig->ret->data.klass->enum_basetype->type;
1169 size = mono_class_native_size (sig->ret->data.klass, &align);
1171 size = mono_class_value_size (sig->ret->data.klass, &align);
1172 cinfo->ret.reg = s390_r2;
1173 cinfo->struct_ret = 1;
1174 cinfo->ret.size = size;
1175 cinfo->ret.vtsize = size;
1176 cinfo->ret.offset = sz->stack_size;
1177 sz->stack_size += S390_ALIGN(size, align);
1180 case MONO_TYPE_TYPEDBYREF:
1181 case MONO_TYPE_VOID:
1184 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1188 add_general (&gr, sz, cinfo->args+nParm);
1189 cinfo->args[nParm].size = sizeof(gpointer);
1193 /*----------------------------------------------------------*/
1194 /* We determine the size of the parameter code and stack */
1195 /* requirements by checking the types and sizes of the */
1197 /*----------------------------------------------------------*/
1199 for (i = 0; i < sig->param_count; ++i) {
1200 if (sig->params [i]->byref) {
1201 add_general (&gr, sz, cinfo->args+nParm);
1202 cinfo->args[nParm].size = sizeof(gpointer);
1206 simpletype = sig->params [i]->type;
1208 switch (simpletype) {
1209 case MONO_TYPE_BOOLEAN:
1212 cinfo->args[nParm].size = sizeof(char);
1213 add_general (&gr, sz, cinfo->args+nParm);
1218 case MONO_TYPE_CHAR:
1219 cinfo->args[nParm].size = sizeof(short);
1220 add_general (&gr, sz, cinfo->args+nParm);
1225 cinfo->args[nParm].size = sizeof(int);
1226 add_general (&gr, sz, cinfo->args+nParm);
1232 case MONO_TYPE_FNPTR:
1233 case MONO_TYPE_CLASS:
1234 case MONO_TYPE_OBJECT:
1235 case MONO_TYPE_STRING:
1236 case MONO_TYPE_SZARRAY:
1237 case MONO_TYPE_ARRAY:
1238 cinfo->args[nParm].size = sizeof(gpointer);
1239 add_general (&gr, sz, cinfo->args+nParm);
1242 case MONO_TYPE_VALUETYPE:
1243 if (sig->params [i]->data.klass->enumtype) {
1244 simpletype = sig->params [i]->data.klass->enum_basetype->type;
1245 goto enum_calc_size;
1248 size = mono_class_native_size (sig->params [i]->data.klass, &align);
1250 size = mono_class_value_size (sig->params [i]->data.klass, &align);
1251 nWords = (size + sizeof(gpointer) - 1) /
1254 cinfo->args[nParm].vtsize = 0;
1255 cinfo->args[nParm].size = 0;
1256 cinfo->args[nParm].offparm = sz->local_size;
1259 /*----------------------------------*/
1260 /* On S/390, structures of size 1, */
1261 /* 2, 4, and 8 bytes are passed in */
1262 /* (a) register(s). */
1263 /*----------------------------------*/
1268 add_general(&gr, sz, cinfo->args+nParm);
1269 cinfo->args[nParm].size = size;
1270 cinfo->args[nParm].regtype = RegTypeStructByVal;
1272 sz->local_size += sizeof(long);
1275 add_general(&gr, sz, cinfo->args+nParm);
1276 cinfo->args[nParm].size = sizeof(long long);
1277 cinfo->args[nParm].regtype = RegTypeStructByVal;
1279 sz->local_size += sizeof(long);
1282 add_general(&gr, sz, cinfo->args+nParm);
1283 cinfo->args[nParm].size = sizeof(gpointer);
1284 cinfo->args[nParm].regtype = RegTypeStructByAddr;
1285 cinfo->args[nParm].vtsize = size;
1286 sz->code_size += 40;
1287 sz->local_size += size;
1288 if (cinfo->args[nParm].reg == STK_BASE)
1289 sz->local_size += sizeof(gpointer);
1295 cinfo->args[nParm].size = sizeof(long long);
1296 add_general (&gr, sz, cinfo->args+nParm);
1300 cinfo->args[nParm].size = sizeof(float);
1301 if (fr <= S390_LAST_FPARG_REG) {
1302 cinfo->args[nParm].regtype = RegTypeFP;
1303 cinfo->args[nParm].reg = fr;
1308 cinfo->args[nParm].offset = sz->stack_size;
1309 cinfo->args[nParm].reg = STK_BASE;
1310 cinfo->args[nParm].regtype = RegTypeBase;
1312 sz->stack_size += sizeof(float);
1317 cinfo->args[nParm].size = sizeof(double);
1318 if (fr <= S390_LAST_FPARG_REG) {
1319 cinfo->args[nParm].regtype = RegTypeFP;
1320 cinfo->args[nParm].reg = fr;
1324 cinfo->args[nParm].offset = sz->stack_size;
1325 cinfo->args[nParm].reg = STK_BASE;
1326 cinfo->args[nParm].regtype = RegTypeBase;
1328 sz->stack_size += sizeof(double);
1333 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1337 cinfo->stack_usage = S390_ALIGN(sz->stack_size+sz->local_size,
1338 S390_STACK_ALIGNMENT);
1342 /*========================= End of Function ========================*/
1344 /*------------------------------------------------------------------*/
1346 /* Name - mono_arch_allocate_vars */
1348 /* Function - Set var information according to the calling */
1349 /* convention for S/390. The local var stuff should */
1350 /* most likely be split in another method. */
1352 /* Parameter - @m - Compile unit. */
1354 /*------------------------------------------------------------------*/
1357 mono_arch_allocate_vars (MonoCompile *m)
1359 MonoMethodSignature *sig;
1360 MonoMethodHeader *header;
1364 int iParm, iVar, offset, size, align, curinst;
1365 int frame_reg = STK_BASE;
1368 header = mono_method_get_header (m->method);
1370 /*---------------------------------------------------------*/
1371 /* We use the frame register also for any method that has */
1372 /* filter clauses. This way, when the handlers are called, */
1373 /* the code will reference local variables using the frame */
1374 /* reg instead of the stack pointer: if we had to restore */
1375 /* the stack pointer, we'd corrupt the method frames that */
1376 /* are already on the stack (since filters get called */
1377 /* before stack unwinding happens) when the filter code */
1378 /* would call any method. */
1379 /*---------------------------------------------------------*/
1380 if ((m->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1381 frame_reg = s390_r11;
1383 m->frame_reg = frame_reg;
1385 if (frame_reg != STK_BASE)
1386 m->used_int_regs |= 1 << frame_reg;
1388 sig = mono_method_signature (m->method);
1390 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1392 if (cinfo->struct_ret) {
1393 m->ret->opcode = OP_REGVAR;
1394 m->ret->inst_c0 = s390_r2;
1396 /* FIXME: handle long and FP values */
1397 switch (sig->ret->type) {
1398 case MONO_TYPE_VOID:
1401 m->ret->opcode = OP_REGVAR;
1402 m->ret->dreg = s390_r2;
1407 /*--------------------------------------------------------------*/
1408 /* local vars are at a positive offset from the stack pointer */
1410 /* also note that if the function uses alloca, we use s390_r11 */
1411 /* to point at the local variables. */
1412 /* add parameter area size for called functions */
1413 /*--------------------------------------------------------------*/
1414 offset = (m->param_area + S390_MINIMAL_STACK_SIZE);
1416 if (cinfo->struct_ret) {
1418 offset = S390_ALIGN(offset, sizeof(gpointer));
1419 inst->inst_offset = offset;
1420 inst->opcode = OP_REGOFFSET;
1421 inst->inst_basereg = frame_reg;
1422 offset += sizeof(gpointer);
1426 inst = m->varinfo [0];
1427 if (inst->opcode != OP_REGVAR) {
1428 inst->opcode = OP_REGOFFSET;
1429 inst->inst_basereg = frame_reg;
1430 offset = S390_ALIGN(offset, sizeof(gpointer));
1431 inst->inst_offset = offset;
1432 offset += sizeof (gpointer);
1439 eArg = sig->param_count + sArg;
1441 for (iParm = sArg; iParm < eArg; ++iParm) {
1442 inst = m->varinfo [curinst];
1443 if (inst->opcode != OP_REGVAR) {
1444 switch (cinfo->args[iParm].regtype) {
1445 case RegTypeStructByAddr :
1446 inst->opcode = OP_S390_LOADARG;
1447 inst->inst_basereg = frame_reg;
1448 size = abs(cinfo->args[iParm].vtsize);
1449 offset = S390_ALIGN(offset, size);
1450 inst->inst_offset = offset;
1452 case RegTypeStructByVal :
1453 inst->opcode = OP_S390_ARGPTR;
1454 inst->inst_basereg = frame_reg;
1455 size = cinfo->args[iParm].size;
1456 offset = S390_ALIGN(offset, size);
1457 inst->inst_offset = offset;
1460 if (cinfo->args[iParm].reg != STK_BASE) {
1461 inst->opcode = OP_REGOFFSET;
1462 inst->inst_basereg = frame_reg;
1463 size = (cinfo->args[iParm].size < 8
1465 : sizeof(long long));
1466 offset = S390_ALIGN(offset, size);
1467 inst->inst_offset = offset;
1469 inst->opcode = OP_S390_STKARG;
1470 inst->inst_basereg = frame_reg;
1471 size = (cinfo->args[iParm].size < 4
1472 ? 4 - cinfo->args[iParm].size
1474 inst->inst_offset = cinfo->args[iParm].offset +
1477 size = sizeof(long);
1485 curinst = m->locals_start;
1486 for (iVar = curinst; iVar < m->num_varinfo; ++iVar) {
1487 inst = m->varinfo [iVar];
1488 if (inst->opcode == OP_REGVAR)
1491 /*--------------------------------------------------*/
1492 /* inst->unused indicates native sized value types, */
1493 /* this is used by the pinvoke wrappers when they */
1494 /* call functions returning structure */
1495 /*--------------------------------------------------*/
1496 if (inst->unused && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1497 size = mono_class_native_size (inst->inst_vtype->data.klass, &align);
1499 size = mono_type_size (inst->inst_vtype, &align);
1501 offset = S390_ALIGN(offset, align);
1502 inst->inst_offset = offset;
1503 inst->opcode = OP_REGOFFSET;
1504 inst->inst_basereg = frame_reg;
1506 //DEBUG (g_print("allocating local %d to %d\n", iVar, inst->inst_offset));
1509 /*------------------------------------------------------*/
1510 /* Allow space for the trace method stack area if needed*/
1511 /*------------------------------------------------------*/
1512 if (mono_jit_trace_calls != NULL && mono_trace_eval (m))
1513 offset += S390_TRACE_STACK_SIZE;
1515 /*------------------------------------------------------*/
1516 /* Reserve space to save LMF and caller saved registers */
1517 /*------------------------------------------------------*/
1518 if (m->method->save_lmf)
1519 offset += sizeof (MonoLMF);
1521 /*------------------------------------------------------*/
1522 /* align the offset */
1523 /*------------------------------------------------------*/
1524 m->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1529 /*========================= End of Function ========================*/
1531 /*------------------------------------------------------------------*/
1533 /* Name - mono_arch_call_opcode */
1535 /* Function - Take the arguments and generate the arch-specific */
1536 /* instructions to properly call the function. This */
1537 /* includes pushing, moving argments to the correct */
1540 /* Note - FIXME: We need an alignment solution for */
1541 /* enter_method and mono_arch_call_opcode, currently */
1542 /* alignment in mono_arch_call_opcode is computed */
1543 /* without arch_get_argument_info. */
1545 /*------------------------------------------------------------------*/
1548 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1549 MonoCallInst *call, int is_virtual) {
1551 MonoMethodSignature *sig;
1552 int i, n, lParamArea;
1557 sig = call->signature;
1558 n = sig->param_count + sig->hasthis;
1559 DEBUG (g_print ("Call requires: %d parameters\n",n));
1561 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1563 call->stack_usage = cinfo->stack_usage;
1564 lParamArea = cinfo->stack_usage - S390_MINIMAL_STACK_SIZE;
1565 cfg->param_area = MAX (cfg->param_area, lParamArea);
1566 cfg->flags |= MONO_CFG_HAS_CALLS;
1568 if (cinfo->struct_ret)
1569 call->used_iregs |= 1 << cinfo->struct_ret;
1571 for (i = 0; i < n; ++i) {
1572 ainfo = cinfo->args + i;
1573 DEBUG (g_print ("Parameter %d - Register: %d Type: %d\n",
1574 i+1,ainfo->reg,ainfo->regtype));
1575 if (is_virtual && i == 0) {
1576 /* the argument will be attached to the call instrucion */
1577 in = call->args [i];
1578 call->used_iregs |= 1 << ainfo->reg;
1580 MONO_INST_NEW (cfg, arg, OP_OUTARG);
1581 in = call->args [i];
1582 arg->cil_code = in->cil_code;
1583 arg->inst_left = in;
1584 arg->type = in->type;
1585 /* prepend, we'll need to reverse them later */
1586 arg->next = call->out_args;
1587 call->out_args = arg;
1588 if (ainfo->regtype == RegTypeGeneral) {
1589 arg->unused = ainfo->reg;
1590 call->used_iregs |= 1 << ainfo->reg;
1591 } else if (ainfo->regtype == RegTypeStructByAddr) {
1592 call->used_iregs |= 1 << ainfo->reg;
1593 arg->sreg1 = ainfo->reg;
1594 arg->opcode = OP_OUTARG_VT;
1595 arg->unused = -ainfo->vtsize;
1596 arg->inst_imm = ainfo->offset;
1597 arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
1598 } else if (ainfo->regtype == RegTypeStructByVal) {
1599 if (ainfo->reg != STK_BASE) {
1600 call->used_iregs |= 1 << ainfo->reg;
1602 arg->sreg1 = ainfo->reg;
1603 arg->opcode = OP_OUTARG_VT;
1604 arg->unused = ainfo->size;
1605 arg->inst_imm = ainfo->offset;
1606 arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
1607 } else if (ainfo->regtype == RegTypeBase) {
1608 arg->opcode = OP_OUTARG;
1609 arg->unused = ainfo->reg | (ainfo->size << 8);
1610 arg->inst_imm = ainfo->offset;
1611 call->used_fregs |= 1 << ainfo->reg;
1612 } else if (ainfo->regtype == RegTypeFP) {
1613 arg->unused = ainfo->reg;
1614 call->used_fregs |= 1 << ainfo->reg;
1615 if (ainfo->size == 4) {
1617 arg->opcode = OP_OUTARG_R4;
1618 MONO_INST_NEW (cfg, conv, OP_FCONV_TO_R4);
1619 conv->inst_left = arg->inst_left;
1620 arg->inst_left = conv;
1623 arg->opcode = OP_OUTARG_R8;
1625 g_assert_not_reached ();
1630 * Reverse the call->out_args list.
1633 MonoInst *prev = NULL, *list = call->out_args, *next;
1640 call->out_args = prev;
1647 /*========================= End of Function ========================*/
1649 /*------------------------------------------------------------------*/
1651 /* Name - mono_arch_instrument_mem_needs */
1653 /* Function - Allow tracing to work with this interface (with */
1654 /* an optional argument). */
1656 /*------------------------------------------------------------------*/
1659 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
1661 /* no stack room needed now (may be needed for FASTCALL-trace support) */
1663 /* split prolog-epilog requirements? */
1664 *code = 50; /* max bytes needed: check this number */
1667 /*========================= End of Function ========================*/
1669 /*------------------------------------------------------------------*/
1671 /* Name - mono_arch_instrument_prolog */
1673 /* Function - Create an "instrumented" prolog. */
1675 /*------------------------------------------------------------------*/
1678 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
1679 gboolean enable_arguments)
1685 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
1686 if (cfg->method->save_lmf)
1687 parmOffset -= sizeof(MonoLMF);
1688 fpOffset = parmOffset + (5*sizeof(long));
1690 s390_stmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
1691 s390_std (code, s390_f0, 0, STK_BASE, fpOffset);
1692 s390_std (code, s390_f1, 0, STK_BASE, fpOffset+sizeof(gdouble));
1693 s390_std (code, s390_f2, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
1694 s390_basr (code, s390_r13, 0);
1696 s390_llong(code, cfg->method);
1697 s390_llong(code, func);
1698 s390_lg (code, s390_r2, 0, s390_r13, 4);
1699 s390_la (code, s390_r3, 0, STK_BASE, parmOffset);
1700 s390_lgr (code, s390_r4, STK_BASE);
1701 s390_aghi (code, s390_r4, cfg->stack_usage);
1702 s390_lg (code, s390_r1, 0, s390_r13, 12);
1703 s390_basr (code, s390_r14, s390_r1);
1704 s390_ld (code, s390_f2, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
1705 s390_ld (code, s390_f1, 0, STK_BASE, fpOffset+sizeof(gdouble));
1706 s390_ld (code, s390_f0, 0, STK_BASE, fpOffset);
1707 s390_lmg (code, s390_r2, s390_r6, STK_BASE, parmOffset);
1712 /*========================= End of Function ========================*/
1714 /*------------------------------------------------------------------*/
1716 /* Name - mono_arch_instrument_epilog */
1718 /* Function - Create an epilog that will handle the returned */
1719 /* values used in instrumentation. */
1721 /*------------------------------------------------------------------*/
1724 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
1727 int save_mode = SAVE_NONE,
1729 MonoMethod *method = cfg->method;
1730 int rtype = mono_method_signature (method)->ret->type;
1732 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
1733 if (method->save_lmf)
1734 saveOffset -= sizeof(MonoLMF);
1738 case MONO_TYPE_VOID:
1739 /* special case string .ctor icall */
1740 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
1741 save_mode = SAVE_ONE;
1743 save_mode = SAVE_NONE;
1747 save_mode = SAVE_TWO;
1751 save_mode = SAVE_FP;
1753 case MONO_TYPE_VALUETYPE:
1754 if (mono_method_signature (method)->ret->data.klass->enumtype) {
1755 rtype = mono_method_signature (method)->ret->data.klass->enum_basetype->type;
1758 save_mode = SAVE_STRUCT;
1761 save_mode = SAVE_ONE;
1765 switch (save_mode) {
1767 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1768 if (enable_arguments)
1769 s390_lgr (code, s390_r3, s390_r2);
1772 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1773 if (enable_arguments)
1774 s390_lgr (code, s390_r3, s390_r2);
1777 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
1778 if (enable_arguments) {
1779 /* FIXME: what reg? */
1780 s390_ldr (code, s390_f2, s390_f0);
1781 s390_lg (code, s390_r3, 0, cfg->frame_reg, saveOffset);
1785 s390_stg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1786 if (enable_arguments)
1787 s390_lg (code, s390_r3, 0, cfg->frame_reg,
1788 S390_MINIMAL_STACK_SIZE+cfg->param_area);
1795 s390_basr (code, s390_r13, 0);
1797 s390_llong(code, cfg->method);
1798 s390_llong(code, func);
1799 s390_lg (code, s390_r2, 0, s390_r13, 4);
1800 s390_lg (code, s390_r1, 0, s390_r13, 12);
1801 s390_basr (code, s390_r14, s390_r1);
1803 switch (save_mode) {
1805 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1808 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1811 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
1814 s390_lg (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1824 /*========================= End of Function ========================*/
1826 /*------------------------------------------------------------------*/
1828 /* Name - peephole_pass */
1830 /* Function - Form a peephole pass at the code looking for */
1831 /* simple optimizations. */
1833 /*------------------------------------------------------------------*/
1836 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
1838 MonoInst *ins, *last_ins = NULL;
1843 switch (ins->opcode) {
1845 /* remove unnecessary multiplication with 1 */
1846 if (ins->inst_imm == 1) {
1847 if (ins->dreg != ins->sreg1) {
1848 ins->opcode = OP_MOVE;
1850 last_ins->next = ins->next;
1856 case OP_LOAD_MEMBASE:
1857 case OP_LOADI4_MEMBASE:
1859 * OP_STORE_MEMBASE_REG reg, offset(basereg)
1860 * OP_LOAD_MEMBASE offset(basereg), reg
1862 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
1863 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
1864 ins->inst_basereg == last_ins->inst_destbasereg &&
1865 ins->inst_offset == last_ins->inst_offset) {
1866 if (ins->dreg == last_ins->sreg1) {
1867 last_ins->next = ins->next;
1871 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
1872 ins->opcode = OP_MOVE;
1873 ins->sreg1 = last_ins->sreg1;
1877 * Note: reg1 must be different from the basereg in the second load
1878 * OP_LOAD_MEMBASE offset(basereg), reg1
1879 * OP_LOAD_MEMBASE offset(basereg), reg2
1881 * OP_LOAD_MEMBASE offset(basereg), reg1
1882 * OP_MOVE reg1, reg2
1884 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
1885 || last_ins->opcode == OP_LOAD_MEMBASE) &&
1886 ins->inst_basereg != last_ins->dreg &&
1887 ins->inst_basereg == last_ins->inst_basereg &&
1888 ins->inst_offset == last_ins->inst_offset) {
1890 if (ins->dreg == last_ins->dreg) {
1891 last_ins->next = ins->next;
1895 ins->opcode = OP_MOVE;
1896 ins->sreg1 = last_ins->dreg;
1900 case OP_LOADU1_MEMBASE:
1901 case OP_LOADI1_MEMBASE:
1902 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
1903 ins->inst_basereg == last_ins->inst_destbasereg &&
1904 ins->inst_offset == last_ins->inst_offset) {
1905 if (ins->dreg == last_ins->sreg1) {
1906 last_ins->next = ins->next;
1910 ins->opcode = OP_MOVE;
1911 ins->sreg1 = last_ins->sreg1;
1915 case OP_LOADU2_MEMBASE:
1916 case OP_LOADI2_MEMBASE:
1917 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
1918 ins->inst_basereg == last_ins->inst_destbasereg &&
1919 ins->inst_offset == last_ins->inst_offset) {
1920 if (ins->dreg == last_ins->sreg1) {
1921 last_ins->next = ins->next;
1925 ins->opcode = OP_MOVE;
1926 ins->sreg1 = last_ins->sreg1;
1932 case CEE_CONV_OVF_U4:
1937 if (ins->dreg == ins->sreg1) {
1939 last_ins->next = ins->next;
1944 * OP_MOVE sreg, dreg
1945 * OP_MOVE dreg, sreg
1947 if (last_ins && last_ins->opcode == OP_MOVE &&
1948 ins->sreg1 == last_ins->dreg &&
1949 ins->dreg == last_ins->sreg1) {
1950 last_ins->next = ins->next;
1959 bb->last_ins = last_ins;
1962 /*========================= End of Function ========================*/
1964 /*------------------------------------------------------------------*/
1966 /* Name - mono_spillvar_offset */
1968 /* Function - Returns the offset used by spillvar. It allocates */
1969 /* a new spill variable if necessary. */
1971 /*------------------------------------------------------------------*/
1974 mono_spillvar_offset (MonoCompile *cfg, int spillvar)
1976 MonoSpillInfo **si, *info;
1979 si = &cfg->spill_info;
1981 while (i <= spillvar) {
1984 *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
1986 info->offset = cfg->stack_offset;
1987 cfg->stack_offset += sizeof (gpointer);
1991 return (*si)->offset;
1997 g_assert_not_reached ();
2001 /*========================= End of Function ========================*/
2003 /*------------------------------------------------------------------*/
2005 /* Name - mono_spillvar_offset_float */
2009 /*------------------------------------------------------------------*/
2012 mono_spillvar_offset_float (MonoCompile *cfg, int spillvar)
2014 MonoSpillInfo **si, *info;
2017 si = &cfg->spill_info_float;
2019 while (i <= spillvar) {
2022 *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
2024 cfg->stack_offset = S390_ALIGN(cfg->stack_offset, S390_STACK_ALIGNMENT);
2025 info->offset = cfg->stack_offset;
2026 cfg->stack_offset += sizeof (double);
2030 return (*si)->offset;
2036 g_assert_not_reached ();
2040 /*========================= End of Function ========================*/
2042 /*------------------------------------------------------------------*/
2044 /* Name - print_ins */
2046 /* Function - Decode and print the instruction for tracing. */
2048 /*------------------------------------------------------------------*/
2051 print_ins (int i, MonoInst *ins)
2053 const char *spec = ins_spec [ins->opcode];
2054 g_print ("\t%-2d %s", i, mono_inst_name (ins->opcode));
2055 if (spec [MONO_INST_DEST]) {
2056 if (ins->dreg >= MONO_MAX_IREGS)
2057 g_print (" R%d <-", ins->dreg);
2059 g_print (" %s <-", mono_arch_regname (ins->dreg));
2061 if (spec [MONO_INST_SRC1]) {
2062 if (ins->sreg1 >= MONO_MAX_IREGS)
2063 g_print (" R%d", ins->sreg1);
2065 g_print (" %s", mono_arch_regname (ins->sreg1));
2067 if (spec [MONO_INST_SRC2]) {
2068 if (ins->sreg2 >= MONO_MAX_IREGS)
2069 g_print (" R%d", ins->sreg2);
2071 g_print (" %s", mono_arch_regname (ins->sreg2));
2073 if (spec [MONO_INST_CLOB])
2074 g_print (" clobbers: %c", spec [MONO_INST_CLOB]);
2078 /*========================= End of Function ========================*/
2080 /*------------------------------------------------------------------*/
2082 /* Name - print_regtrack. */
2086 /*------------------------------------------------------------------*/
2089 print_regtrack (RegTrack *t, int num)
2095 for (i = 0; i < num; ++i) {
2098 if (i >= MONO_MAX_IREGS) {
2099 g_snprintf (buf, sizeof(buf), "R%d", i);
2102 r = mono_arch_regname (i);
2103 g_print ("liveness: %s [%d - %d]\n", r, t [i].born_in, t[i].last_use);
2107 /*========================= End of Function ========================*/
2109 /*------------------------------------------------------------------*/
2111 /* Name - inst_list_prepend */
2113 /* Function - Prepend an instruction to the list. */
2115 /*------------------------------------------------------------------*/
2117 static inline InstList*
2118 inst_list_prepend (MonoMemPool *pool, InstList *list, MonoInst *data)
2120 InstList *item = mono_mempool_alloc (pool, sizeof (InstList));
2129 /*========================= End of Function ========================*/
2131 /*------------------------------------------------------------------*/
2133 /* Name - get_register_force_spilling */
2135 /* Function - Force the spilling of the variable in the */
2136 /* symbolic register 'reg'. */
2138 /*------------------------------------------------------------------*/
2141 get_register_force_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, int reg)
2146 sel = cfg->rs->iassign [reg];
2148 spill = ++cfg->spill_count;
2149 cfg->rs->iassign [i] = -spill - 1;
2150 mono_regstate_free_int (cfg->rs, sel);
2151 /*----------------------------------------------------------*/
2152 /* we need to create a spill var and insert a load to sel */
2153 /* after the current instruction */
2154 /*----------------------------------------------------------*/
2155 MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
2157 load->inst_basereg = cfg->frame_reg;
2158 load->inst_offset = mono_spillvar_offset (cfg, spill);
2160 while (ins->next != item->prev->data)
2163 load->next = ins->next;
2165 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n",
2166 spill, load->inst_offset, i, mono_arch_regname (sel)));
2167 i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
2168 g_assert (i == sel);
2173 /*========================= End of Function ========================*/
2175 /*------------------------------------------------------------------*/
2177 /* Name - get_register_spilling */
2181 /*------------------------------------------------------------------*/
2184 get_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
2189 DEBUG (g_print ("start regmask to assign R%d: 0x%08x (R%d <- R%d R%d)\n", reg, regmask, ins->dreg, ins->sreg1, ins->sreg2));
2190 /* exclude the registers in the current instruction */
2191 if (reg != ins->sreg1 &&
2192 (reg_is_freeable (ins->sreg1) ||
2193 (ins->sreg1 >= MONO_MAX_IREGS &&
2194 cfg->rs->iassign [ins->sreg1] >= 0))) {
2195 if (ins->sreg1 >= MONO_MAX_IREGS)
2196 regmask &= ~ (1 << cfg->rs->iassign [ins->sreg1]);
2198 regmask &= ~ (1 << ins->sreg1);
2199 DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
2201 if (reg != ins->sreg2 &&
2202 (reg_is_freeable (ins->sreg2) ||
2203 (ins->sreg2 >= MONO_MAX_IREGS &&
2204 cfg->rs->iassign [ins->sreg2] >= 0))) {
2205 if (ins->sreg2 >= MONO_MAX_IREGS)
2206 regmask &= ~ (1 << cfg->rs->iassign [ins->sreg2]);
2208 regmask &= ~ (1 << ins->sreg2);
2209 DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
2211 if (reg != ins->dreg && reg_is_freeable (ins->dreg)) {
2212 regmask &= ~ (1 << ins->dreg);
2213 DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
2216 DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
2217 g_assert (regmask); /* need at least a register we can free */
2219 /* we should track prev_use and spill the register that's farther */
2220 for (i = 0; i < MONO_MAX_IREGS; ++i) {
2221 if (regmask & (1 << i)) {
2223 DEBUG (g_print ("selected register %s has assignment %d\n", mono_arch_regname (sel), cfg->rs->iassign [sel]));
2227 i = cfg->rs->isymbolic [sel];
2228 spill = ++cfg->spill_count;
2229 cfg->rs->iassign [i] = -spill - 1;
2230 mono_regstate_free_int (cfg->rs, sel);
2231 /* we need to create a spill var and insert a load to sel after the current instruction */
2232 MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
2234 load->inst_basereg = cfg->frame_reg;
2235 load->inst_offset = mono_spillvar_offset (cfg, spill);
2237 while (ins->next != item->prev->data)
2240 load->next = ins->next;
2242 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
2243 i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
2244 g_assert (i == sel);
2249 /*========================= End of Function ========================*/
2251 /*------------------------------------------------------------------*/
2253 /* Name - get_float_register_spilling */
2257 /*------------------------------------------------------------------*/
2260 get_float_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
2265 DEBUG (g_print ("start regmask to assign R%d: 0x%08x (R%d <- R%d R%d)\n", reg, regmask, ins->dreg, ins->sreg1, ins->sreg2));
2266 /* exclude the registers in the current instruction */
2267 if (reg != ins->sreg1 &&
2268 (freg_is_freeable (ins->sreg1) ||
2269 (ins->sreg1 >= MONO_MAX_FREGS &&
2270 cfg->rs->fassign [ins->sreg1] >= 0))) {
2271 if (ins->sreg1 >= MONO_MAX_FREGS)
2272 regmask &= ~ (1 << cfg->rs->fassign [ins->sreg1]);
2274 regmask &= ~ (1 << ins->sreg1);
2275 DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
2277 if (reg != ins->sreg2 &&
2278 (freg_is_freeable (ins->sreg2) ||
2279 (ins->sreg2 >= MONO_MAX_FREGS &&
2280 cfg->rs->fassign [ins->sreg2] >= 0))) {
2281 if (ins->sreg2 >= MONO_MAX_FREGS)
2282 regmask &= ~ (1 << cfg->rs->fassign [ins->sreg2]);
2284 regmask &= ~ (1 << ins->sreg2);
2285 DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
2287 if (reg != ins->dreg && freg_is_freeable (ins->dreg)) {
2288 regmask &= ~ (1 << ins->dreg);
2289 DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
2292 DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
2293 g_assert (regmask); /* need at least a register we can free */
2295 /* we should track prev_use and spill the register that's farther */
2296 for (i = 0; i < MONO_MAX_FREGS; ++i) {
2297 if (regmask & (1 << i)) {
2299 DEBUG (g_print ("selected register %s has assignment %d\n",
2300 mono_arch_regname (sel), cfg->rs->fassign [sel]));
2304 i = cfg->rs->fsymbolic [sel];
2305 spill = ++cfg->spill_count;
2306 cfg->rs->fassign [i] = -spill - 1;
2307 mono_regstate_free_float(cfg->rs, sel);
2308 /* we need to create a spill var and insert a load to sel after the current instruction */
2309 MONO_INST_NEW (cfg, load, OP_LOADR8_MEMBASE);
2311 load->inst_basereg = cfg->frame_reg;
2312 load->inst_offset = mono_spillvar_offset_float (cfg, spill);
2314 while (ins->next != item->prev->data)
2317 load->next = ins->next;
2319 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
2320 i = mono_regstate_alloc_float (cfg->rs, 1 << sel);
2321 g_assert (i == sel);
2326 /*========================= End of Function ========================*/
2328 /*------------------------------------------------------------------*/
2330 /* Name - create_copy_ins */
2332 /* Function - Create an instruction to copy from reg to reg. */
2334 /*------------------------------------------------------------------*/
2337 create_copy_ins (MonoCompile *cfg, int dest, int src, MonoInst *ins)
2340 MONO_INST_NEW (cfg, copy, OP_MOVE);
2344 copy->next = ins->next;
2347 DEBUG (g_print ("\tforced copy from %s to %s\n",
2348 mono_arch_regname (src), mono_arch_regname (dest)));
2352 /*========================= End of Function ========================*/
2354 /*------------------------------------------------------------------*/
2356 /* Name - create_copy_ins_float */
2358 /* Function - Create an instruction to copy from float reg to */
2361 /*------------------------------------------------------------------*/
2364 create_copy_ins_float (MonoCompile *cfg, int dest, int src, MonoInst *ins)
2367 MONO_INST_NEW (cfg, copy, OP_FMOVE);
2371 copy->next = ins->next;
2374 DEBUG (g_print ("\tforced copy from %s to %s\n",
2375 mono_arch_regname (src), mono_arch_regname (dest)));
2379 /*========================= End of Function ========================*/
2381 /*------------------------------------------------------------------*/
2383 /* Name - create_spilled_store */
2385 /* Function - Spill register to storage. */
2387 /*------------------------------------------------------------------*/
2390 create_spilled_store (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
2393 MONO_INST_NEW (cfg, store, OP_STORE_MEMBASE_REG);
2395 store->inst_destbasereg = cfg->frame_reg;
2396 store->inst_offset = mono_spillvar_offset (cfg, spill);
2398 store->next = ins->next;
2401 DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
2402 spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
2406 /*========================= End of Function ========================*/
2408 /*------------------------------------------------------------------*/
2410 /* Name - create_spilled_store_float */
2412 /* Function - Spill floating point register to storage. */
2414 /*------------------------------------------------------------------*/
2417 create_spilled_store_float (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
2420 MONO_INST_NEW (cfg, store, OP_STORER8_MEMBASE_REG);
2422 store->inst_destbasereg = cfg->frame_reg;
2423 store->inst_offset = mono_spillvar_offset_float (cfg, spill);
2425 store->next = ins->next;
2428 DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
2429 spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
2433 /*========================= End of Function ========================*/
2435 /*------------------------------------------------------------------*/
2437 /* Name - insert_before_ins */
2439 /* Function - Insert an instruction before another. */
2441 /*------------------------------------------------------------------*/
2444 insert_before_ins (MonoInst *ins, InstList *item, MonoInst* to_insert)
2447 g_assert (item->next);
2448 prev = item->next->data;
2450 while (prev->next != ins)
2452 to_insert->next = ins;
2453 prev->next = to_insert;
2455 * needed otherwise in the next instruction we can add an ins to the
2456 * end and that would get past this instruction.
2458 item->data = to_insert;
2461 /*========================= End of Function ========================*/
2463 /*------------------------------------------------------------------*/
2465 /* Name - alloc_int_reg */
2467 /* Function - Allocate a general register. */
2469 /*------------------------------------------------------------------*/
2472 alloc_int_reg (MonoCompile *cfg, InstList *curinst, MonoInst *ins, int sym_reg, guint32 allow_mask)
2474 int val = cfg->rs->iassign [sym_reg];
2475 DEBUG (g_print ("Allocating a general register for %d (%d) with mask %08x\n",val,sym_reg,allow_mask));
2479 /* the register gets spilled after this inst */
2482 val = mono_regstate_alloc_int (cfg->rs, allow_mask);
2484 val = get_register_spilling (cfg, curinst, ins, allow_mask, sym_reg);
2485 cfg->rs->iassign [sym_reg] = val;
2486 /* add option to store before the instruction for src registers */
2488 create_spilled_store (cfg, spill, val, sym_reg, ins);
2490 DEBUG (g_print ("Allocated %d for %d\n",val,sym_reg));
2491 cfg->rs->isymbolic [val] = sym_reg;
2495 /*========================= End of Function ========================*/
2497 /*------------------------------------------------------------------*/
2499 /* Name - mono_arch_local_regalloc. */
2501 /* Function - We first scan the list of instructions and we */
2502 /* save the liveness information of each register */
2503 /* (when the register is first used, when its value */
2504 /* is set etc.). We also reverse the list of instr- */
2505 /* uctions (in the InstList list) because assigning */
2506 /* registers backwards allows for more tricks to be */
2509 /*------------------------------------------------------------------*/
2512 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2515 MonoRegState *rs = cfg->rs;
2517 RegTrack *reginfo, *reginfof;
2518 RegTrack *reginfo1, *reginfo2, *reginfod;
2519 InstList *tmp, *reversed = NULL;
2521 guint32 src1_mask, src2_mask, dest_mask;
2522 guint32 cur_iregs, cur_fregs;
2526 rs->next_vireg = bb->max_ireg;
2527 rs->next_vfreg = bb->max_freg;
2528 mono_regstate_assign (rs);
2529 reginfo = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vireg);
2530 reginfof = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vfreg);
2531 rs->ifree_mask = S390_CALLER_REGS;
2532 rs->ffree_mask = S390_CALLER_FREGS;
2536 DEBUG (g_print ("LOCAL regalloc: basic block: %d\n", bb->block_num));
2537 /* forward pass on the instructions to collect register liveness info */
2539 spec = ins_spec [ins->opcode];
2540 DEBUG (print_ins (i, ins));
2541 if (spec [MONO_INST_CLOB] == 'c') {
2542 MonoCallInst * call = (MonoCallInst*)ins;
2545 if (spec [MONO_INST_SRC1]) {
2546 if (spec [MONO_INST_SRC1] == 'f')
2547 reginfo1 = reginfof;
2550 reginfo1 [ins->sreg1].prev_use = reginfo1 [ins->sreg1].last_use;
2551 reginfo1 [ins->sreg1].last_use = i;
2555 if (spec [MONO_INST_SRC2]) {
2556 if (spec [MONO_INST_SRC2] == 'f')
2557 reginfo2 = reginfof;
2560 reginfo2 [ins->sreg2].prev_use = reginfo2 [ins->sreg2].last_use;
2561 reginfo2 [ins->sreg2].last_use = i;
2565 if (spec [MONO_INST_DEST]) {
2566 if (spec [MONO_INST_DEST] == 'f')
2567 reginfod = reginfof;
2570 if (spec [MONO_INST_DEST] != 'b') /* it's not just a base register */
2571 reginfod [ins->dreg].killed_in = i;
2572 reginfod [ins->dreg].prev_use = reginfod [ins->dreg].last_use;
2573 reginfod [ins->dreg].last_use = i;
2574 if (reginfod [ins->dreg].born_in == 0 || reginfod [ins->dreg].born_in > i)
2575 reginfod [ins->dreg].born_in = i;
2577 if (spec [MONO_INST_DEST] == 'l') {
2578 /* result in eax:edx, the virtual register is allocated sequentially */
2579 reginfod [ins->dreg + 1].prev_use = reginfod [ins->dreg + 1].last_use;
2580 reginfod [ins->dreg + 1].last_use = i;
2581 if (reginfod [ins->dreg + 1].born_in == 0 || reginfod [ins->dreg + 1].born_in > i)
2582 reginfod [ins->dreg + 1].born_in = i;
2588 reversed = inst_list_prepend (cfg->mempool, reversed, ins);
2593 cur_iregs = S390_CALLER_REGS;
2594 cur_fregs = S390_CALLER_FREGS;
2596 DEBUG (print_regtrack (reginfo, rs->next_vireg));
2597 DEBUG (print_regtrack (reginfof, rs->next_vfreg));
2600 int prev_dreg, prev_sreg1, prev_sreg2;
2603 spec = ins_spec [ins->opcode];
2604 DEBUG (g_print ("processing:"));
2605 DEBUG (print_ins (i, ins));
2606 /* make the register available for allocation: FIXME add fp reg */
2607 if (ins->opcode == OP_SETREG || ins->opcode == OP_SETREGIMM) {
2608 cur_iregs |= 1 << ins->dreg;
2609 DEBUG (g_print ("adding %d to cur_iregs\n", ins->dreg));
2610 } else if (ins->opcode == OP_SETFREG) {
2611 cur_fregs |= 1 << ins->dreg;
2612 DEBUG (g_print ("adding %d to cur_fregs\n", ins->dreg));
2613 } else if (spec [MONO_INST_CLOB] == 'c') {
2614 MonoCallInst *cinst = (MonoCallInst*)ins;
2615 DEBUG (g_print ("excluding regs 0x%x from cur_iregs (0x%x)\n",
2616 cinst->used_iregs, cur_iregs));
2617 DEBUG (g_print ("excluding fpregs 0x%x from cur_fregs (0x%x)\n",
2618 cinst->used_fregs, cur_fregs));
2619 cur_iregs &= ~cinst->used_iregs;
2620 cur_fregs &= ~cinst->used_fregs;
2621 DEBUG (g_print ("available cur_iregs: 0x%x\n", cur_iregs));
2622 DEBUG (g_print ("available cur_fregs: 0x%x\n", cur_fregs));
2623 /*------------------------------------------------------------*/
2624 /* registers used by the calling convention are excluded from */
2625 /* allocation: they will be selectively enabled when they are */
2626 /* assigned by the special SETREG opcodes. */
2627 /*------------------------------------------------------------*/
2629 dest_mask = src1_mask = src2_mask = cur_iregs;
2630 /*------------------------------------------------------*/
2631 /* update for use with FP regs... */
2632 /*------------------------------------------------------*/
2633 if (spec [MONO_INST_DEST] == 'f') {
2634 dest_mask = cur_fregs;
2635 if (ins->dreg >= MONO_MAX_FREGS) {
2636 val = rs->fassign [ins->dreg];
2637 prev_dreg = ins->dreg;
2641 /* the register gets spilled after this inst */
2644 val = mono_regstate_alloc_float (rs, dest_mask);
2646 val = get_float_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
2647 rs->fassign [ins->dreg] = val;
2649 create_spilled_store_float (cfg, spill, val, prev_dreg, ins);
2651 DEBUG (g_print ("\tassigned dreg %s to dest R%d\n",
2652 mono_arch_regname (val), ins->dreg));
2653 rs->fsymbolic [val] = prev_dreg;
2655 if (spec [MONO_INST_CLOB] == 'c' && ins->dreg != s390_f0) {
2656 /* this instruction only outputs to s390_f0, need to copy */
2657 create_copy_ins_float (cfg, ins->dreg, s390_f0, ins);
2662 if (freg_is_freeable (ins->dreg) && prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i || !(cur_fregs & (1 << ins->dreg)))) {
2663 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2664 mono_regstate_free_float (rs, ins->dreg);
2666 } else if (ins->dreg >= MONO_MAX_IREGS) {
2667 val = rs->iassign [ins->dreg];
2668 prev_dreg = ins->dreg;
2672 /* the register gets spilled after this inst */
2675 val = mono_regstate_alloc_int (rs, dest_mask);
2677 val = get_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
2678 rs->iassign [ins->dreg] = val;
2680 create_spilled_store (cfg, spill, val, prev_dreg, ins);
2682 DEBUG (g_print ("\tassigned dreg %s to dest R%d (prev: R%d)\n",
2683 mono_arch_regname (val), ins->dreg, prev_dreg));
2684 rs->isymbolic [val] = prev_dreg;
2686 if (spec [MONO_INST_DEST] == 'l') {
2687 if (ins->dreg != s390_r2)
2688 create_copy_ins (cfg, ins->dreg, s390_r2, ins);
2690 int hreg = prev_dreg + 1;
2691 val = rs->iassign [hreg];
2695 /* the register gets spilled after this inst */
2698 val = mono_regstate_alloc_int (rs, dest_mask);
2700 val = get_register_spilling (cfg, tmp, ins, dest_mask, hreg);
2701 rs->iassign [hreg] = val;
2703 create_spilled_store (cfg, spill, val, hreg, ins);
2705 DEBUG (g_print ("\tassigned hreg %s to dest R%d\n", mono_arch_regname (val), hreg));
2706 rs->isymbolic [val] = hreg;
2708 /* FIXME:? ins->dreg = val; */
2709 if (ins->dreg == s390_r3) {
2711 create_copy_ins (cfg, val, s390_r2, ins);
2712 } else if (ins->dreg == s390_r2) {
2713 if (val == s390_r3) {
2715 create_copy_ins (cfg, s390_r3, s390_r0, ins);
2716 create_copy_ins (cfg, s390_r2, s390_r3, ins);
2717 create_copy_ins (cfg, s390_r0, s390_r2, ins);
2719 /* two forced copies */
2720 create_copy_ins (cfg, ins->dreg, s390_r3, ins);
2721 create_copy_ins (cfg, val, s390_r2, ins);
2724 if (val == s390_r2) {
2725 create_copy_ins (cfg, ins->dreg, s390_r2, ins);
2727 /* two forced copies */
2728 create_copy_ins (cfg, val, s390_r2, ins);
2729 create_copy_ins (cfg, ins->dreg, s390_r3, ins);
2733 if (reg_is_freeable (val) && !(cur_iregs & (1 << val))) {
2734 DEBUG (g_print ("\tfreeable %s (R%d)\n", mono_arch_regname (val), val));
2735 mono_regstate_free_int (rs, val);
2738 } else if (spec [MONO_INST_DEST] == 'a' && ins->dreg != s390_r2 && spec [MONO_INST_CLOB] != 'd') {
2739 /* this instruction only outputs to s390_r2, need to copy */
2740 create_copy_ins (cfg, ins->dreg, s390_r2, ins);
2745 if (spec [MONO_INST_DEST] == 'f' &&
2746 freg_is_freeable (ins->dreg) &&
2747 prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i)) {
2748 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2749 mono_regstate_free_float (rs, ins->dreg);
2750 } else if (spec [MONO_INST_DEST] != 'f' &&
2751 reg_is_freeable (ins->dreg) &&
2752 prev_dreg >= 0 && (reginfo [prev_dreg].born_in >= i)) {
2753 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2754 mono_regstate_free_int (rs, ins->dreg);
2756 if (spec [MONO_INST_SRC1] == 'f') {
2757 src1_mask = cur_fregs;
2758 if (ins->sreg1 >= MONO_MAX_FREGS) {
2759 val = rs->fassign [ins->sreg1];
2760 prev_sreg1 = ins->sreg1;
2764 /* the register gets spilled after this inst */
2767 //g_assert (val == -1); /* source cannot be spilled */
2768 val = mono_regstate_alloc_float (rs, src1_mask);
2770 val = get_float_register_spilling (cfg, tmp, ins, src1_mask, ins->sreg1);
2771 rs->fassign [ins->sreg1] = val;
2772 DEBUG (g_print ("\tassigned sreg1 %s to R%d\n", mono_arch_regname (val), ins->sreg1));
2774 MonoInst *store = create_spilled_store_float (cfg, spill, val, prev_sreg1, NULL);
2775 insert_before_ins (ins, tmp, store);
2778 rs->fsymbolic [val] = prev_sreg1;
2783 } else if (ins->sreg1 >= MONO_MAX_IREGS) {
2784 val = rs->iassign [ins->sreg1];
2785 prev_sreg1 = ins->sreg1;
2789 /* the register gets spilled after this inst */
2792 val = mono_regstate_alloc_int (rs, src1_mask);
2794 val = get_register_spilling (cfg, tmp, ins,
2797 rs->iassign [ins->sreg1] = val;
2798 DEBUG (g_print ("\tassigned sreg1 %s to R%d\n",
2799 mono_arch_regname (val), ins->sreg1));
2802 store = create_spilled_store (cfg, spill, val,
2804 insert_before_ins (ins, tmp, store);
2807 rs->isymbolic [val] = prev_sreg1;
2812 /*----------------------------------------------*/
2813 /* handle clobbering of sreg1 */
2814 /*----------------------------------------------*/
2815 if ((spec [MONO_INST_CLOB] == '1' ||
2816 spec [MONO_INST_CLOB] == 's') &&
2817 ins->dreg != ins->sreg1) {
2819 copy = create_copy_ins (cfg, ins->dreg, ins->sreg1, NULL);
2820 DEBUG (g_print ("\tneed to copy sreg1 %s to dreg %s\n",
2821 mono_arch_regname (ins->sreg1),
2822 mono_arch_regname (ins->dreg)));
2823 if (ins->sreg2 == -1 || spec [MONO_INST_CLOB] == 's') {
2824 /* note: the copy is inserted before the current instruction! */
2825 insert_before_ins (ins, tmp, copy);
2826 /* we set sreg1 to dest as well */
2827 prev_sreg1 = ins->sreg1 = ins->dreg;
2829 /* inserted after the operation */
2830 copy->next = ins->next;
2835 if (spec [MONO_INST_SRC2] == 'f') {
2836 src2_mask = cur_fregs;
2837 if (ins->sreg2 >= MONO_MAX_FREGS) {
2838 val = rs->fassign [ins->sreg2];
2839 prev_sreg2 = ins->sreg2;
2843 /* the register gets spilled after this inst */
2846 val = mono_regstate_alloc_float (rs, src2_mask);
2848 val = get_float_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
2849 rs->fassign [ins->sreg2] = val;
2850 DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
2852 create_spilled_store_float (cfg, spill, val, prev_sreg2, ins);
2854 rs->fsymbolic [val] = prev_sreg2;
2859 } else if (ins->sreg2 >= MONO_MAX_IREGS) {
2860 val = rs->iassign [ins->sreg2];
2861 prev_sreg2 = ins->sreg2;
2865 /* the register gets spilled after this inst */
2868 val = mono_regstate_alloc_int (rs, src2_mask);
2870 val = get_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
2871 rs->iassign [ins->sreg2] = val;
2872 DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
2874 create_spilled_store (cfg, spill, val, prev_sreg2, ins);
2876 rs->isymbolic [val] = prev_sreg2;
2882 if (spec [MONO_INST_CLOB] == 'c') {
2884 guint32 clob_mask = S390_CALLER_REGS;
2885 for (j = 0; j < MONO_MAX_IREGS; ++j) {
2887 if ((clob_mask & s) && !(rs->ifree_mask & s) && j != ins->sreg1) {
2895 /*========================= End of Function ========================*/
2897 /*------------------------------------------------------------------*/
2899 /* Name - emit_float_to_int */
2901 /* Function - Create instructions which will convert a floating */
2902 /* point value to integer. */
2904 /*------------------------------------------------------------------*/
2907 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2909 /* sreg is a float, dreg is an integer reg. */
2911 s390_cfdbr (code, dreg, 5, sreg);
2914 s390_lghi (code, s390_r0, 0);
2915 s390_lghi (code, s390_r13, 0xff);
2916 s390_ltgr (code, dreg, dreg);
2918 s390_lhi (code, s390_r0, 0x80);
2919 s390_ngr (code, dreg, s390_r13);
2920 s390_ogr (code, dreg, s390_r0);
2924 s390_basr (code, s390_r13, 0);
2926 s390_llong (code, 0x41e0000000000000);
2927 s390_llong (code, 0x41f0000000000000);
2928 s390_ldr (code, s390_f15, sreg);
2929 s390_cdb (code, s390_f15, 0, s390_r13, 0);
2931 s390_sdb (code, s390_f15, 0, s390_r13, 8);
2932 s390_cfdbr (code, dreg, 7, s390_f15);
2934 s390_cfdbr (code, dreg, 5, sreg);
2937 s390_lghi (code, s390_r0, 0xff);
2938 s390_ngr (code, dreg, s390_r0);
2941 s390_lghi (code, s390_r0, -1);
2942 s390_srlg (code, s390_r0, s390_r0, 0, 16);
2943 s390_ngr (code, dreg, s390_r0);
2950 /*========================= End of Function ========================*/
2952 /*------------------------------------------------------------------*/
2954 /* Name - mono_emit_stack_alloc */
2958 /*------------------------------------------------------------------*/
2960 static unsigned char*
2961 mono_emit_stack_alloc (guchar *code, MonoInst* tree)
2966 /*========================= End of Function ========================*/
2968 /*------------------------------------------------------------------*/
2970 /* Name - mono_arch_output_basic_block */
2972 /* Function - Perform the "real" work of emitting instructions */
2973 /* that will do the work of in the basic block. */
2975 /*------------------------------------------------------------------*/
2978 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
2983 guint8 *code = cfg->native_code + cfg->code_len;
2984 MonoInst *last_ins = NULL;
2985 guint last_offset = 0;
2989 if (cfg->opt & MONO_OPT_PEEPHOLE)
2990 peephole_pass (cfg, bb);
2992 /* we don't align basic blocks of loops on s390 */
2994 if (cfg->verbose_level > 2)
2995 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
2997 cpos = bb->max_offset;
2999 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
3000 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
3001 //g_assert (!mono_compile_aot);
3004 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
3005 /* this is not thread save, but good enough */
3006 /* fixme: howto handle overflows? */
3007 //x86_inc_mem (code, &cov->data [bb->dfn].count);
3012 offset = code - cfg->native_code;
3014 max_len = ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
3016 if (offset > (cfg->code_size - max_len - 16)) {
3017 cfg->code_size *= 2;
3018 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
3019 code = cfg->native_code + offset;
3022 mono_debug_record_line_number (cfg, ins, offset);
3024 switch (ins->opcode) {
3025 case OP_STOREI1_MEMBASE_IMM: {
3026 s390_lghi (code, s390_r14, ins->inst_imm);
3027 if (s390_is_uimm12(ins->inst_offset))
3028 s390_stc (code, s390_r14, 0, ins->inst_destbasereg, ins->inst_offset);
3030 s390_basr (code, s390_r13, 0);
3032 s390_llong(code, ins->inst_offset);
3033 s390_lg (code, s390_r13, 0, s390_r13, 4);
3034 s390_stc (code, s390_r14, s390_r13, ins->inst_destbasereg, 0);
3038 case OP_STOREI2_MEMBASE_IMM: {
3039 s390_lghi (code, s390_r14, ins->inst_imm);
3040 if (s390_is_uimm12(ins->inst_offset)) {
3041 s390_sth (code, s390_r14, 0, ins->inst_destbasereg, ins->inst_offset);
3043 s390_basr (code, s390_r13, 0);
3045 s390_llong(code, ins->inst_offset);
3046 s390_lg (code, s390_r13, 0, s390_r13, 4);
3047 s390_sth (code, s390_r14, s390_r13, ins->inst_destbasereg, 0);
3051 case OP_STORE_MEMBASE_IMM:
3052 case OP_STOREI8_MEMBASE_IMM: {
3053 if (s390_is_imm16(ins->inst_imm)) {
3054 s390_lghi (code, s390_r14, ins->inst_imm);
3056 s390_basr (code, s390_r13, 0);
3058 s390_llong(code, ins->inst_imm);
3059 s390_lg (code, s390_r14, 0, s390_r13, 4);
3061 if (s390_is_uimm12(ins->inst_offset)) {
3062 s390_stg (code, s390_r14, 0, ins->inst_destbasereg, ins->inst_offset);
3064 s390_basr (code, s390_r13, 0);
3066 s390_llong(code, ins->inst_offset);
3067 s390_lg (code, s390_r13, 0, s390_r13, 4);
3068 s390_stg (code, s390_r14, s390_r13, ins->inst_destbasereg, 0);
3072 case OP_STOREI4_MEMBASE_IMM: {
3073 if (s390_is_imm16(ins->inst_imm)) {
3074 s390_lghi (code, s390_r14, ins->inst_imm);
3076 s390_basr (code, s390_r13, 0);
3078 s390_llong(code, ins->inst_imm);
3079 s390_lg (code, s390_r14, 0, s390_r13, 4);
3081 if (s390_is_uimm12(ins->inst_offset)) {
3082 s390_st (code, s390_r14, 0, ins->inst_destbasereg, ins->inst_offset);
3084 s390_basr (code, s390_r13, 0);
3086 s390_llong(code, ins->inst_offset);
3087 s390_lg (code, s390_r13, 0, s390_r13, 4);
3088 s390_st (code, s390_r14, s390_r13, ins->inst_destbasereg, 0);
3092 case OP_STOREI1_MEMBASE_REG: {
3093 if (s390_is_uimm12(ins->inst_offset)) {
3094 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3096 s390_basr (code, s390_r13, 0);
3098 s390_llong(code, ins->inst_offset);
3099 s390_lg (code, s390_r13, 0, s390_r13, 4);
3100 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3104 case OP_STOREI2_MEMBASE_REG: {
3105 if (s390_is_uimm12(ins->inst_offset)) {
3106 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3108 s390_basr (code, s390_r13, 0);
3110 s390_llong(code, ins->inst_offset);
3111 s390_lg (code, s390_r13, 0, s390_r13, 4);
3112 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3116 case OP_STORE_MEMBASE_REG:
3117 case OP_STOREI8_MEMBASE_REG: {
3118 if (s390_is_uimm12(ins->inst_offset)) {
3119 s390_stg (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3121 s390_basr (code, s390_r13, 0);
3123 s390_llong(code, ins->inst_offset);
3124 s390_lg (code, s390_r13, 0, s390_r13, 4);
3125 s390_stg (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3129 case OP_STOREI4_MEMBASE_REG: {
3130 if (s390_is_uimm12(ins->inst_offset)) {
3131 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3133 s390_basr (code, s390_r13, 0);
3135 s390_llong(code, ins->inst_offset);
3136 s390_lg (code, s390_r13, 0, s390_r13, 4);
3137 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3142 case CEE_LDIND_I4: {
3143 s390_basr (code, s390_r13, 0);
3145 s390_word (code, ins->inst_p0);
3146 s390_lg (code, s390_r13, 0, s390_r13, 4);
3147 s390_lgf (code, ins->dreg, 0, s390_r13, 0);
3150 case CEE_LDIND_U4: {
3151 s390_basr (code, s390_r13, 0);
3153 s390_word (code, ins->inst_p0);
3154 s390_lg (code, s390_r13, 0, s390_r13, 4);
3155 s390_llgf (code, ins->dreg, 0, s390_r13, 0);
3159 g_assert_not_reached ();
3161 case OP_LOAD_MEMBASE:
3162 case OP_LOADI8_MEMBASE: {
3163 if (s390_is_uimm12(ins->inst_offset))
3164 s390_lg (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3166 if (s390_is_imm16(ins->inst_offset)) {
3167 s390_lghi(code, s390_r13, ins->inst_offset);
3168 s390_lg (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3170 s390_basr (code, s390_r13, 0);
3172 s390_llong(code, ins->inst_offset);
3173 s390_lg (code, s390_r13, 0, s390_r13, 4);
3174 s390_lg (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3179 case OP_LOADI4_MEMBASE:
3180 case OP_LOADU4_MEMBASE: {
3181 if (s390_is_uimm12(ins->inst_offset))
3182 s390_lgf (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3184 if (s390_is_imm16(ins->inst_offset)) {
3185 s390_lghi(code, s390_r13, ins->inst_offset);
3186 s390_lgf (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3188 s390_basr (code, s390_r13, 0);
3190 s390_llong(code, ins->inst_offset);
3191 s390_lg (code, s390_r13, 0, s390_r13, 4);
3192 s390_lgf (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3197 case OP_LOADU1_MEMBASE: {
3198 if (s390_is_uimm12(ins->inst_offset))
3199 s390_llgc (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3201 s390_basr (code, s390_r13, 0);
3203 s390_llong(code, ins->inst_offset);
3204 s390_lg (code, s390_r13, 0, s390_r13, 4);
3205 s390_llgc (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3209 case OP_LOADI1_MEMBASE: {
3210 if (s390_is_uimm12(ins->inst_offset))
3211 s390_lgb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3213 s390_basr (code, s390_r13, 0);
3215 s390_llong(code, ins->inst_offset);
3216 s390_lg (code, s390_r13, 0, s390_r13, 4);
3217 s390_lgb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3221 case OP_LOADU2_MEMBASE: {
3222 if (s390_is_uimm12(ins->inst_offset))
3223 s390_llgh (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3225 s390_basr (code, s390_r13, 0);
3227 s390_llong(code, ins->inst_offset);
3228 s390_lg (code, s390_r13, 0, s390_r13, 4);
3229 s390_llgh (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3233 case OP_LOADI2_MEMBASE: {
3234 if (s390_is_uimm12(ins->inst_offset))
3235 s390_lh (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3237 s390_basr (code, s390_r13, 0);
3239 s390_llong(code, ins->inst_offset);
3240 s390_lg (code, s390_r13, 0, s390_r13, 4);
3241 s390_lh (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3246 s390_lghi (code, s390_r0, 0x80);
3247 if (ins->dreg != ins->sreg1) {
3248 s390_lgr (code, ins->dreg, ins->sreg1);
3250 s390_ngr (code, s390_r0, ins->sreg1);
3252 s390_lghi (code, s390_r13, -1);
3253 s390_sllg (code, s390_r13, s390_r13, 0, 8);
3254 s390_ogr (code, ins->dreg, s390_r13);
3258 s390_lghi (code, s390_r0, 0x80);
3259 s390_sllg (code, s390_r0, s390_r0, 0, 8);
3260 if (ins->dreg != ins->sreg1) {
3261 s390_lgr (code, ins->dreg, ins->sreg1);
3263 s390_ngr (code, s390_r0, ins->sreg1);
3265 s390_lghi (code, s390_r13, -1);
3266 s390_sllg (code, s390_r13, s390_r13, 0, 16);
3267 s390_ogr (code, ins->dreg, s390_r13);
3271 s390_lghi (code, s390_r0, 0xff);
3272 if (ins->dreg != ins->sreg1) {
3273 s390_lgr (code, ins->dreg, ins->sreg1);
3275 s390_ngr (code, ins->dreg, s390_r0);
3279 s390_lghi (code, s390_r0, -1);
3280 s390_sllg (code, s390_r0, s390_r0, 0, 48);
3281 s390_srlg (code, s390_r0, s390_r0, 0, 48);
3282 if (ins->dreg != ins->sreg1) {
3283 s390_lgr (code, ins->dreg, ins->sreg1);
3285 s390_ngr (code, ins->dreg, s390_r0);
3291 ((ins->next->opcode >= CEE_BNE_UN) &&
3292 (ins->next->opcode <= CEE_BLT_UN)) ||
3293 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3294 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3295 ((ins->next->opcode == OP_CLT_UN) ||
3296 (ins->next->opcode == OP_CGT_UN)))
3297 s390_clgr (code, ins->sreg1, ins->sreg2);
3299 s390_cgr (code, ins->sreg1, ins->sreg2);
3302 case OP_COMPARE_IMM: {
3303 if (s390_is_imm16 (ins->inst_imm)) {
3304 s390_lghi (code, s390_r0, ins->inst_imm);
3306 ((ins->next->opcode >= CEE_BNE_UN) &&
3307 (ins->next->opcode <= CEE_BLT_UN)) ||
3308 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3309 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3310 ((ins->next->opcode == OP_CLT_UN) ||
3311 (ins->next->opcode == OP_CGT_UN)))
3312 s390_clgr (code, ins->sreg1, s390_r0);
3314 s390_cgr (code, ins->sreg1, s390_r0);
3317 s390_basr (code, s390_r13, 0);
3319 s390_llong(code, ins->inst_imm);
3321 ((ins->next->opcode >= CEE_BNE_UN) &&
3322 (ins->next->opcode <= CEE_BLT_UN)) ||
3323 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3324 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3325 ((ins->next->opcode == OP_CLT_UN) &&
3326 (ins->next->opcode == OP_CGT_UN)))
3327 s390_clg (code, ins->sreg1, 0, s390_r13, 4);
3329 s390_cg (code, ins->sreg1, 0, s390_r13, 4);
3335 (((ins->next->opcode >= OP_IBNE_UN) &&
3336 (ins->next->opcode <= OP_IBLT_UN)) ||
3337 ((ins->next->opcode == OP_ICLT_UN) ||
3338 (ins->next->opcode == OP_ICGT_UN)))))
3339 s390_clr (code, ins->sreg1, ins->sreg2);
3341 s390_cr (code, ins->sreg1, ins->sreg2);
3344 case OP_ICOMPARE_IMM: {
3345 if (s390_is_imm16 (ins->inst_imm)) {
3346 s390_lghi (code, s390_r0, ins->inst_imm);
3348 ((ins->next->opcode >= CEE_BNE_UN) &&
3349 (ins->next->opcode <= CEE_BLT_UN)) ||
3350 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3351 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3352 ((ins->next->opcode == OP_CLT_UN) ||
3353 (ins->next->opcode == OP_CGT_UN)))
3354 s390_clr (code, ins->sreg1, s390_r0);
3356 s390_cr (code, ins->sreg1, s390_r0);
3359 s390_basr (code, s390_r13, 0);
3361 s390_word (code, ins->inst_imm);
3363 ((ins->next->opcode >= CEE_BNE_UN) &&
3364 (ins->next->opcode <= CEE_BLT_UN)) ||
3365 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3366 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3367 ((ins->next->opcode == OP_CLT_UN) &&
3368 (ins->next->opcode == OP_CGT_UN)))
3369 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
3371 s390_c (code, ins->sreg1, 0, s390_r13, 4);
3375 case OP_X86_TEST_NULL: {
3376 s390_ltgr(code, ins->sreg1, ins->sreg1);
3384 if (ins->dreg != ins->sreg1) {
3385 s390_lgr (code, ins->dreg, ins->sreg1);
3387 s390_algr (code, ins->dreg, ins->sreg2);
3391 if (ins->dreg != ins->sreg1) {
3392 s390_lgr (code, ins->dreg, ins->sreg1);
3394 s390_agr (code, ins->dreg, ins->sreg2);
3398 if (ins->dreg != ins->sreg1) {
3399 s390_lgr (code, ins->dreg, ins->sreg1);
3401 s390_alcgr (code, ins->dreg, ins->sreg2);
3406 (ins->next->opcode == OP_ADC_IMM)) {
3407 s390_basr (code, s390_r13, 0);
3409 s390_llong (code, ins->inst_imm);
3410 if (ins->dreg != ins->sreg1) {
3411 s390_lgr (code, ins->dreg, ins->sreg1);
3413 s390_alg (code, ins->dreg, 0, s390_r13, 4);
3415 if (s390_is_imm16 (ins->inst_imm)) {
3416 if (ins->dreg != ins->sreg1) {
3417 s390_lgr (code, ins->dreg, ins->sreg1);
3419 s390_aghi (code, ins->dreg, ins->inst_imm);
3421 s390_basr (code, s390_r13, 0);
3423 s390_llong (code, ins->inst_imm);
3424 if (ins->dreg != ins->sreg1) {
3425 s390_lgr (code, ins->dreg, ins->sreg1);
3427 s390_ag (code, ins->dreg, 0, s390_r13, 4);
3433 if (s390_is_imm16 (ins->inst_imm)) {
3434 if (ins->dreg != ins->sreg1) {
3435 s390_lgr (code, ins->dreg, ins->sreg1);
3437 s390_lghi (code, s390_r0, ins->inst_imm);
3438 s390_alcgr (code, ins->dreg, s390_r0);
3440 s390_basr (code, s390_r13, 0);
3442 s390_llong(code, ins->inst_imm);
3443 s390_lg (code, s390_r13, 0, s390_r13, 4);
3444 s390_alcgr(code, ins->dreg, s390_r13);
3449 if (ins->dreg != ins->sreg1) {
3450 s390_lgr (code, ins->dreg, ins->sreg1);
3452 s390_ar (code, ins->dreg, ins->sreg2);
3453 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3456 case CEE_ADD_OVF_UN: {
3457 if (ins->dreg != ins->sreg1) {
3458 s390_lgr (code, ins->dreg, ins->sreg1);
3460 s390_algr (code, ins->dreg, ins->sreg2);
3461 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3464 case OP_ADD_OVF_CARRY: {
3465 if (ins->dreg != ins->sreg1) {
3466 s390_lgr (code, ins->dreg, ins->sreg1);
3468 s390_lghi (code, s390_r0, 0);
3469 s390_lgr (code, s390_r1, s390_r0);
3470 s390_alcgr(code, s390_r0, s390_r1);
3471 s390_agr (code, ins->dreg, ins->sreg2);
3472 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3473 s390_agr (code, ins->dreg, s390_r0);
3474 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3477 case OP_ADD_OVF_UN_CARRY: {
3478 if (ins->dreg != ins->sreg1) {
3479 s390_lgr (code, ins->dreg, ins->sreg1);
3481 s390_alcgr (code, ins->dreg, ins->sreg2);
3482 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3486 if (ins->dreg != ins->sreg1) {
3487 s390_lr (code, ins->dreg, ins->sreg1);
3489 s390_slgr (code, ins->dreg, ins->sreg2);
3493 if (ins->dreg != ins->sreg1) {
3494 s390_lgr (code, ins->dreg, ins->sreg1);
3496 s390_sgr (code, ins->dreg, ins->sreg2);
3500 if (ins->dreg != ins->sreg1) {
3501 s390_lgr (code, ins->dreg, ins->sreg1);
3503 s390_slbgr (code, ins->dreg, ins->sreg2);
3507 if (s390_is_imm16 (-ins->inst_imm)) {
3508 if (ins->dreg != ins->sreg1) {
3509 s390_lgr (code, ins->dreg, ins->sreg1);
3511 s390_aghi (code, ins->dreg, -ins->inst_imm);
3513 s390_basr (code, s390_r13, 0);
3515 s390_llong(code, ins->inst_imm);
3516 if (ins->dreg != ins->sreg1) {
3517 s390_lgr (code, ins->dreg, ins->sreg1);
3519 s390_sg (code, ins->dreg, 0, s390_r13, 4);
3524 s390_basr (code, s390_r13, 0);
3526 s390_llong(code, ins->inst_imm);
3527 s390_slg (code, ins->dreg, 0, s390_r13, 4);
3531 if (ins->dreg != ins->sreg1) {
3532 s390_lgr (code, ins->dreg, ins->sreg1);
3534 s390_sgr (code, ins->dreg, ins->sreg2);
3535 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3538 case CEE_SUB_OVF_UN: {
3539 if (ins->dreg != ins->sreg1) {
3540 s390_lgr (code, ins->dreg, ins->sreg1);
3542 s390_slr (code, ins->dreg, ins->sreg2);
3543 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3546 case OP_SUB_OVF_CARRY: {
3547 if (ins->dreg != ins->sreg1) {
3548 s390_lgr (code, ins->dreg, ins->sreg1);
3550 s390_lghi (code, s390_r0, 0);
3551 s390_lgr (code, s390_r1, s390_r0);
3552 s390_slbr (code, s390_r0, s390_r1);
3553 s390_sr (code, ins->dreg, ins->sreg2);
3554 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3555 s390_agr (code, ins->dreg, s390_r0);
3556 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3559 case OP_SUB_OVF_UN_CARRY: {
3560 if (ins->dreg != ins->sreg1) {
3561 s390_lgr (code, ins->dreg, ins->sreg1);
3563 s390_slbgr (code, ins->dreg, ins->sreg2);
3564 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3568 if (ins->sreg1 == ins->dreg) {
3569 s390_ngr (code, ins->dreg, ins->sreg2);
3572 if (ins->sreg2 == ins->dreg) {
3573 s390_ngr (code, ins->dreg, ins->sreg1);
3576 s390_lgr (code, ins->dreg, ins->sreg1);
3577 s390_ngr (code, ins->dreg, ins->sreg2);
3583 if (s390_is_imm16 (ins->inst_imm)) {
3584 s390_lghi (code, s390_r0, ins->inst_imm);
3585 if (ins->dreg != ins->sreg1) {
3586 s390_lgr (code, ins->dreg, ins->sreg1);
3588 s390_ngr (code, ins->dreg, s390_r0);
3590 s390_basr (code, s390_r13, 0);
3592 s390_llong(code, ins->inst_imm);
3593 if (ins->dreg != ins->sreg1) {
3594 s390_lgr (code, ins->dreg, ins->sreg1);
3596 s390_ng (code, ins->dreg, 0, s390_r13, 4);
3601 s390_lr (code, s390_r0, ins->sreg1);
3602 s390_srda (code, s390_r0, 0, 32);
3603 s390_dr (code, s390_r0, ins->sreg2);
3604 s390_lgfr (code, ins->dreg, s390_r1);
3608 s390_lr (code, s390_r0, ins->sreg1);
3609 s390_srdl (code, s390_r0, 0, 32);
3610 s390_dlr (code, s390_r0, ins->sreg2);
3611 s390_lgfr (code, ins->dreg, s390_r1);
3615 if (s390_is_imm16 (ins->inst_imm)) {
3616 s390_lghi (code, s390_r13, ins->inst_imm);
3617 s390_lgr (code, s390_r0, ins->sreg1);
3619 s390_basr (code, s390_r13, 0);
3621 s390_llong(code, ins->inst_imm);
3622 s390_lgr (code, s390_r0, ins->sreg1);
3623 s390_lg (code, s390_r13, 0, s390_r13, 4);
3625 s390_srda (code, s390_r0, 0, 32);
3626 s390_dr (code, s390_r0, ins->sreg2);
3627 s390_lgfr (code, ins->dreg, s390_r1);
3631 s390_lgr (code, s390_r0, ins->sreg1);
3632 s390_srda (code, s390_r0, 0, 32);
3633 s390_dr (code, s390_r0, ins->sreg2);
3634 s390_lgfr (code, ins->dreg, s390_r0);
3637 s390_lgr (code, s390_r0, ins->sreg1);
3638 s390_srdl (code, s390_r0, 0, 32);
3639 s390_dlr (code, s390_r0, ins->sreg2);
3640 s390_lgfr (code, ins->dreg, s390_r0);
3644 if (s390_is_imm16 (ins->inst_imm)) {
3645 s390_lghi (code, s390_r13, ins->inst_imm);
3646 s390_lgr (code, s390_r0, ins->sreg1);
3648 s390_basr (code, s390_r13, 0);
3650 s390_llong(code, ins->inst_imm);
3651 s390_lgr (code, s390_r0, ins->sreg1);
3652 s390_lg (code, s390_r13, 0, s390_r13, 4);
3654 s390_srda (code, s390_r0, 0, 32);
3655 s390_dr (code, s390_r0, ins->sreg2);
3656 s390_lgfr (code, ins->dreg, s390_r0);
3660 if (ins->sreg1 == ins->dreg) {
3661 s390_ogr (code, ins->dreg, ins->sreg2);
3664 if (ins->sreg2 == ins->dreg) {
3665 s390_ogr (code, ins->dreg, ins->sreg1);
3668 s390_lr (code, ins->dreg, ins->sreg1);
3669 s390_ogr (code, ins->dreg, ins->sreg2);
3675 if (s390_is_imm16 (ins->inst_imm)) {
3676 s390_lghi (code, s390_r0, ins->inst_imm);
3677 if (ins->dreg != ins->sreg1) {
3678 s390_lgr (code, ins->dreg, ins->sreg1);
3680 s390_ogr (code, ins->dreg, s390_r0);
3682 s390_bras (code, s390_r13, 4);
3683 s390_llong(code, ins->inst_imm);
3684 if (ins->dreg != ins->sreg1) {
3685 s390_lgr (code, ins->dreg, ins->sreg1);
3687 s390_og (code, ins->dreg, 0, s390_r13, 0);
3692 if (ins->sreg1 == ins->dreg) {
3693 s390_xgr (code, ins->dreg, ins->sreg2);
3696 if (ins->sreg2 == ins->dreg) {
3697 s390_xgr (code, ins->dreg, ins->sreg1);
3700 s390_lgr (code, ins->dreg, ins->sreg1);
3701 s390_xgr (code, ins->dreg, ins->sreg2);
3707 if (s390_is_imm16 (ins->inst_imm)) {
3708 s390_lghi (code, s390_r0, ins->inst_imm);
3709 if (ins->dreg != ins->sreg1) {
3710 s390_lgr (code, ins->dreg, ins->sreg1);
3712 s390_xgr (code, ins->dreg, s390_r0);
3714 s390_basr (code, s390_r13, 0);
3716 s390_llong(code, ins->inst_imm);
3717 if (ins->dreg != ins->sreg1) {
3718 s390_lgr (code, ins->dreg, ins->sreg1);
3720 s390_xg (code, ins->dreg, 0, s390_r13, 4);
3726 if (ins->sreg1 != ins->dreg) {
3727 s390_lgr (code, ins->dreg, ins->sreg1);
3729 s390_sllg (code, ins->dreg, ins->dreg, ins->sreg2, 0);
3734 if (ins->sreg1 != ins->dreg) {
3735 s390_lgr (code, ins->dreg, ins->sreg1);
3737 s390_sllg (code, ins->dreg, ins->dreg, 0,
3738 (ins->inst_imm & 0x1f));
3743 if (ins->sreg1 != ins->dreg) {
3744 s390_lgr (code, ins->dreg, ins->sreg1);
3746 s390_srag (code, ins->dreg, ins->dreg, ins->sreg2, 0);
3751 if (ins->sreg1 != ins->dreg) {
3752 s390_lgr (code, ins->dreg, ins->sreg1);
3754 s390_srag (code, ins->dreg, ins->dreg, 0,
3755 (ins->inst_imm & 0x1f));
3759 case OP_LSHR_UN_IMM: {
3760 if (ins->sreg1 != ins->dreg) {
3761 s390_lgr (code, ins->dreg, ins->sreg1);
3763 s390_srlg (code, ins->dreg, ins->dreg, 0,
3764 (ins->inst_imm & 0x1f));
3769 if (ins->sreg1 != ins->dreg) {
3770 s390_lgr (code, ins->dreg, ins->sreg1);
3772 s390_srlg (code, ins->dreg, ins->dreg, ins->sreg2, 0);
3776 if (ins->sreg1 != ins->dreg) {
3777 s390_lgr (code, ins->dreg, ins->sreg1);
3779 s390_lghi (code, s390_r0, -1);
3780 s390_xgr (code, ins->dreg, s390_r0);
3784 s390_lcgr (code, ins->dreg, ins->sreg1);
3788 if (ins->sreg1 == ins->dreg) {
3789 s390_msgr (code, ins->dreg, ins->sreg2);
3792 if (ins->sreg2 == ins->dreg) {
3793 s390_msgr (code, ins->dreg, ins->sreg1);
3796 s390_lgr (code, ins->dreg, ins->sreg1);
3797 s390_msgr (code, ins->dreg, ins->sreg2);
3803 if (s390_is_imm16 (ins->inst_imm)) {
3804 s390_lghi (code, s390_r13, ins->inst_imm);
3806 s390_basr (code, s390_r13, 0);
3808 s390_llong(code, ins->inst_imm);
3809 if (ins->dreg != ins->sreg1) {
3810 s390_lgr (code, ins->dreg, ins->sreg1);
3812 s390_lg (code, s390_r13, 0, s390_r13, 4);
3814 s390_msgr (code, ins->dreg, s390_r13);
3819 s390_ltgr (code, s390_r1, ins->sreg1);
3820 s390_jz (code, 0); CODEPTR(code, o[0]);
3821 s390_ltgr (code, s390_r0, ins->sreg2);
3823 s390_lghi (code, s390_r1, 0);
3824 s390_j (code, 0); CODEPTR(code, o[1]);
3825 s390_xgr (code, s390_r0, s390_r1);
3826 s390_msgr (code, s390_r1, ins->sreg2);
3827 s390_xgr (code, s390_r0, s390_r1);
3828 s390_srlg (code, s390_r0, s390_r0, 0, 64);
3829 s390_ltgr (code, s390_r0, s390_r0);
3830 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3831 PTRSLOT (code, o[0]);
3832 PTRSLOT (code, o[1]);
3833 s390_lgr (code, ins->dreg, s390_r1);
3836 case CEE_MUL_OVF_UN: {
3837 s390_lghi (code, s390_r0, 0);
3838 s390_lgr (code, s390_r1, ins->sreg1);
3839 s390_mlgr (code, s390_r0, ins->sreg2);
3840 s390_ltgr (code, s390_r0, s390_r0);
3841 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3842 s390_lgr (code, ins->dreg, s390_r1);
3846 if (ins->dreg != ins->sreg1) {
3847 s390_lr (code, ins->dreg, ins->sreg1);
3849 s390_alr (code, ins->dreg, ins->sreg2);
3853 if (ins->dreg != ins->sreg1) {
3854 s390_lr (code, ins->dreg, ins->sreg1);
3856 s390_ar (code, ins->dreg, ins->sreg2);
3860 if (ins->dreg != ins->sreg1) {
3861 s390_lr (code, ins->dreg, ins->sreg1);
3863 s390_alcr (code, ins->dreg, ins->sreg2);
3868 (ins->next->opcode == OP_ADC_IMM)) {
3869 s390_basr (code, s390_r13, 0);
3871 s390_word (code, ins->inst_imm);
3872 if (ins->dreg != ins->sreg1) {
3873 s390_lr (code, ins->dreg, ins->sreg1);
3875 s390_al (code, ins->dreg, 0, s390_r13, 4);
3877 if (s390_is_imm16 (ins->inst_imm)) {
3878 if (ins->dreg != ins->sreg1) {
3879 s390_lr (code, ins->dreg, ins->sreg1);
3881 s390_ahi (code, ins->dreg, ins->inst_imm);
3883 s390_basr (code, s390_r13, 0);
3885 s390_word (code, ins->inst_imm);
3886 if (ins->dreg != ins->sreg1) {
3887 s390_lr (code, ins->dreg, ins->sreg1);
3889 s390_a (code, ins->dreg, 0, s390_r13, 4);
3895 if (s390_is_imm16 (ins->inst_imm)) {
3896 if (ins->dreg != ins->sreg1) {
3897 s390_lr (code, ins->dreg, ins->sreg1);
3899 s390_lhi (code, s390_r0, ins->inst_imm);
3900 s390_alcr (code, ins->dreg, s390_r0);
3902 s390_basr (code, s390_r13, 0);
3904 s390_word (code, ins->inst_imm);
3905 s390_l (code, s390_r13, 0, s390_r13, 4);
3906 s390_alcr (code, ins->dreg, s390_r13);
3911 if (ins->dreg != ins->sreg1) {
3912 s390_lr (code, ins->dreg, ins->sreg1);
3914 s390_slr (code, ins->dreg, ins->sreg2);
3918 if (ins->dreg != ins->sreg1) {
3919 s390_lr (code, ins->dreg, ins->sreg1);
3921 s390_sr (code, ins->dreg, ins->sreg2);
3925 if (ins->dreg != ins->sreg1) {
3926 s390_lr (code, ins->dreg, ins->sreg1);
3928 s390_slbr (code, ins->dreg, ins->sreg2);
3932 if (s390_is_imm16 (-ins->inst_imm)) {
3933 if (ins->dreg != ins->sreg1) {
3934 s390_lr (code, ins->dreg, ins->sreg1);
3936 s390_ahi (code, ins->dreg, -ins->inst_imm);
3938 s390_basr (code, s390_r13, 0);
3940 s390_word (code, ins->inst_imm);
3941 if (ins->dreg != ins->sreg1) {
3942 s390_lr (code, ins->dreg, ins->sreg1);
3944 s390_s (code, ins->dreg, 0, s390_r13, 4);
3949 s390_basr (code, s390_r13, 0);
3951 s390_word (code, ins->inst_imm);
3952 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3956 if (ins->sreg1 == ins->dreg) {
3957 s390_nr (code, ins->dreg, ins->sreg2);
3960 if (ins->sreg2 == ins->dreg) {
3961 s390_nr (code, ins->dreg, ins->sreg1);
3964 s390_lr (code, ins->dreg, ins->sreg1);
3965 s390_nr (code, ins->dreg, ins->sreg2);
3971 if (s390_is_imm16 (ins->inst_imm)) {
3972 s390_lhi (code, s390_r0, ins->inst_imm);
3973 if (ins->dreg != ins->sreg1) {
3974 s390_lr (code, ins->dreg, ins->sreg1);
3976 s390_nr (code, ins->dreg, s390_r0);
3978 s390_basr (code, s390_r13, 0);
3980 s390_word (code, ins->inst_imm);
3981 if (ins->dreg != ins->sreg1) {
3982 s390_lr (code, ins->dreg, ins->sreg1);
3984 s390_n (code, ins->dreg, 0, s390_r13, 4);
3989 s390_lr (code, s390_r0, ins->sreg1);
3990 s390_srda (code, s390_r0, 0, 32);
3991 s390_dr (code, s390_r0, ins->sreg2);
3992 s390_lr (code, ins->dreg, s390_r1);
3996 s390_lr (code, s390_r0, ins->sreg1);
3997 s390_srdl (code, s390_r0, 0, 32);
3998 s390_dlr (code, s390_r0, ins->sreg2);
3999 s390_lr (code, ins->dreg, s390_r1);
4003 if (s390_is_imm16 (ins->inst_imm)) {
4004 s390_lhi (code, s390_r13, ins->inst_imm);
4005 s390_lr (code, s390_r0, ins->sreg1);
4007 s390_basr (code, s390_r13, 0);
4009 s390_word (code, ins->inst_imm);
4010 s390_lr (code, s390_r0, ins->sreg1);
4011 s390_l (code, s390_r13, 0, s390_r13, 4);
4013 s390_srda (code, s390_r0, 0, 32);
4014 s390_dr (code, s390_r0, ins->sreg2);
4015 s390_lr (code, ins->dreg, s390_r1);
4019 s390_lr (code, s390_r0, ins->sreg1);
4020 s390_srda (code, s390_r0, 0, 32);
4021 s390_dr (code, s390_r0, ins->sreg2);
4022 s390_lr (code, ins->dreg, s390_r0);
4025 s390_lr (code, s390_r0, ins->sreg1);
4026 s390_srdl (code, s390_r0, 0, 32);
4027 s390_dlr (code, s390_r0, ins->sreg2);
4028 s390_lr (code, ins->dreg, s390_r0);
4032 if (s390_is_imm16 (ins->inst_imm)) {
4033 s390_lhi (code, s390_r13, ins->inst_imm);
4034 s390_lr (code, s390_r0, ins->sreg1);
4036 s390_basr (code, s390_r13, 0);
4038 s390_word (code, ins->inst_imm);
4039 s390_lr (code, s390_r0, ins->sreg1);
4040 s390_l (code, s390_r13, 0, s390_r13, 4);
4042 s390_srda (code, s390_r0, 0, 32);
4043 s390_dr (code, s390_r0, ins->sreg2);
4044 s390_lr (code, ins->dreg, s390_r0);
4048 if (ins->sreg1 == ins->dreg) {
4049 s390_or (code, ins->dreg, ins->sreg2);
4052 if (ins->sreg2 == ins->dreg) {
4053 s390_or (code, ins->dreg, ins->sreg1);
4056 s390_lr (code, ins->dreg, ins->sreg1);
4057 s390_or (code, ins->dreg, ins->sreg2);
4063 if (s390_is_imm16 (ins->inst_imm)) {
4064 s390_lhi (code, s390_r0, ins->inst_imm);
4065 if (ins->dreg != ins->sreg1) {
4066 s390_lr (code, ins->dreg, ins->sreg1);
4068 s390_or (code, ins->dreg, s390_r0);
4070 s390_bras (code, s390_r13, 4);
4071 s390_word (code, ins->inst_imm);
4072 if (ins->dreg != ins->sreg1) {
4073 s390_lr (code, ins->dreg, ins->sreg1);
4075 s390_o (code, ins->dreg, 0, s390_r13, 0);
4080 if (ins->sreg1 == ins->dreg) {
4081 s390_xr (code, ins->dreg, ins->sreg2);
4084 if (ins->sreg2 == ins->dreg) {
4085 s390_xr (code, ins->dreg, ins->sreg1);
4088 s390_lr (code, ins->dreg, ins->sreg1);
4089 s390_xr (code, ins->dreg, ins->sreg2);
4095 if (s390_is_imm16 (ins->inst_imm)) {
4096 s390_lhi (code, s390_r0, ins->inst_imm);
4097 if (ins->dreg != ins->sreg1) {
4098 s390_lr (code, ins->dreg, ins->sreg1);
4100 s390_xr (code, ins->dreg, s390_r0);
4102 s390_basr (code, s390_r13, 0);
4104 s390_word (code, ins->inst_imm);
4105 if (ins->dreg != ins->sreg1) {
4106 s390_lr (code, ins->dreg, ins->sreg1);
4108 s390_x (code, ins->dreg, 0, s390_r13, 4);
4113 if (ins->sreg1 != ins->dreg) {
4114 s390_lr (code, ins->dreg, ins->sreg1);
4116 s390_sll (code, ins->dreg, ins->sreg2, 0);
4120 if (ins->sreg1 != ins->dreg) {
4121 s390_lr (code, ins->dreg, ins->sreg1);
4123 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
4127 if (ins->sreg1 != ins->dreg) {
4128 s390_lr (code, ins->dreg, ins->sreg1);
4130 s390_sra (code, ins->dreg, ins->sreg2, 0);
4134 if (ins->sreg1 != ins->dreg) {
4135 s390_lr (code, ins->dreg, ins->sreg1);
4137 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
4140 case OP_ISHR_UN_IMM: {
4141 if (ins->sreg1 != ins->dreg) {
4142 s390_lr (code, ins->dreg, ins->sreg1);
4144 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
4148 if (ins->sreg1 != ins->dreg) {
4149 s390_lr (code, ins->dreg, ins->sreg1);
4151 s390_srl (code, ins->dreg, ins->sreg2, 0);
4155 if (ins->sreg1 != ins->dreg) {
4156 s390_lr (code, ins->dreg, ins->sreg1);
4158 s390_lhi (code, s390_r0, -1);
4159 s390_xr (code, ins->dreg, s390_r0);
4163 s390_lcr (code, ins->dreg, ins->sreg1);
4167 if (ins->sreg1 == ins->dreg) {
4168 s390_msr (code, ins->dreg, ins->sreg2);
4171 if (ins->sreg2 == ins->dreg) {
4172 s390_msr (code, ins->dreg, ins->sreg1);
4175 s390_lr (code, ins->dreg, ins->sreg1);
4176 s390_msr (code, ins->dreg, ins->sreg2);
4182 if (s390_is_imm16 (ins->inst_imm)) {
4183 s390_lhi (code, s390_r13, ins->inst_imm);
4185 s390_basr (code, s390_r13, 0);
4187 s390_word (code, ins->inst_imm);
4188 if (ins->dreg != ins->sreg1) {
4189 s390_lr (code, ins->dreg, ins->sreg1);
4191 s390_l (code, s390_r13, 0, s390_r13, 4);
4193 s390_msr (code, ins->dreg, s390_r13);
4198 s390_ltr (code, s390_r1, ins->sreg1);
4199 s390_jz (code, 0); CODEPTR(code, o[0]);
4200 s390_ltr (code, s390_r0, ins->sreg2);
4202 s390_lhi (code, s390_r1, 0);
4203 s390_j (code, 0); CODEPTR(code, o[1]);
4204 s390_xr (code, s390_r0, s390_r1);
4205 s390_msr (code, s390_r1, ins->sreg2);
4206 s390_xr (code, s390_r0, s390_r1);
4207 s390_srl (code, s390_r0, 0, 31);
4208 s390_ltr (code, s390_r0, s390_r0);
4209 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
4210 PTRSLOT (code, o[0]);
4211 PTRSLOT (code, o[1]);
4212 s390_lr (code, ins->dreg, s390_r1);
4215 case OP_IMUL_OVF_UN: {
4216 s390_lhi (code, s390_r0, 0);
4217 s390_lr (code, s390_r1, ins->sreg1);
4218 s390_mlr (code, s390_r0, ins->sreg2);
4219 s390_ltr (code, s390_r0, s390_r0);
4220 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
4221 s390_lr (code, ins->dreg, s390_r1);
4226 case OP_SETREGIMM: {
4227 if (s390_is_imm16(ins->inst_c0)) {
4228 s390_lghi (code, ins->dreg, ins->inst_c0);
4230 s390_basr (code, s390_r13, 0);
4232 s390_llong(code, ins->inst_c0);
4233 s390_lg (code, ins->dreg, 0, s390_r13, 4);
4238 s390_basr (code, s390_r13, 0);
4240 mono_add_patch_info (cfg, code - cfg->native_code,
4241 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
4242 s390_llong(code, 0);
4243 s390_lg (code,ins->dreg, 0, s390_r13, 4);
4251 case CEE_CONV_OVF_U4:
4255 if (ins->dreg != ins->sreg1) {
4256 s390_lgr(code, ins->dreg, ins->sreg1);
4262 if (ins->dreg != ins->sreg1) {
4263 s390_ldr (code, ins->dreg, ins->sreg1);
4267 case OP_S390_SETF4RET: {
4268 s390_ledbr (code, ins->dreg, ins->sreg1);
4271 case OP_FCONV_TO_R4: {
4273 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
4274 s390_ledbr (code, ins->dreg, ins->sreg1);
4279 if (cfg->method->save_lmf)
4280 code = restoreLMF(cfg, code);
4282 if (cfg->flags & MONO_CFG_HAS_TAIL) {
4283 s390_lmg(code, s390_r2, s390_r5, STK_BASE,
4284 S390_PARM_SAVE_OFFSET);
4285 for (fParm = 0; fParm < 4; fParm ++)
4286 s390_ld (code, fParm, 0, STK_BASE,
4287 S390_FLOAT_SAVE_OFFSET+fParm*sizeof(double));
4290 code = backUpStackPtr(cfg, code);
4291 s390_lg (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
4292 s390_basr (code, s390_r10, 0);
4294 mono_add_patch_info (cfg, code - cfg->native_code,
4295 MONO_PATCH_INFO_METHOD_JUMP,
4297 s390_llong(code, 0);
4298 s390_lg (code, s390_r1, 0, s390_r10, 4);
4299 s390_basr (code, s390_r0, s390_r1);
4302 case OP_CHECK_THIS: {
4303 /* ensure ins->sreg1 is not NULL */
4304 s390_lg (code, s390_r0, 0, ins->sreg1, 0);
4305 s390_ltgr (code, s390_r0, s390_r0);
4309 s390_basr (code, s390_r10, 0);
4311 call = (MonoCallInst*)ins;
4312 if (ins->flags & MONO_INST_HAS_METHOD)
4313 mono_add_patch_info (cfg, code-cfg->native_code,
4314 MONO_PATCH_INFO_METHOD,
4317 mono_add_patch_info (cfg, code-cfg->native_code,
4318 MONO_PATCH_INFO_ABS,
4320 s390_llong(code, 0);
4321 s390_lg (code, s390_r1, 0, s390_r10, 4);
4322 s390_basr (code, s390_r14, s390_r1);
4323 if (call->signature->ret->type == MONO_TYPE_R4)
4324 s390_ldebr (code, s390_f0, s390_f0);
4331 s390_basr (code, s390_r10, 0);
4333 call = (MonoCallInst*)ins;
4334 if (ins->flags & MONO_INST_HAS_METHOD)
4335 mono_add_patch_info (cfg, code-cfg->native_code,
4336 MONO_PATCH_INFO_METHOD,
4339 mono_add_patch_info (cfg, code-cfg->native_code,
4340 MONO_PATCH_INFO_ABS,
4342 s390_llong(code, 0);
4343 s390_lg (code, s390_r1, 0, s390_r10, 4);
4344 s390_basr (code, s390_r14, s390_r1);
4347 case OP_FCALL_REG: {
4348 call = (MonoCallInst*)ins;
4349 s390_lgr (code, s390_r1, ins->sreg1);
4350 s390_basr (code, s390_r14, s390_r1);
4351 if (call->signature->ret->type == MONO_TYPE_R4)
4352 s390_ldebr (code, s390_f0, s390_f0);
4357 case OP_VOIDCALL_REG:
4359 s390_lgr (code, s390_r1, ins->sreg1);
4360 s390_basr (code, s390_r14, s390_r1);
4363 case OP_FCALL_MEMBASE: {
4364 call = (MonoCallInst*)ins;
4365 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4366 s390_basr (code, s390_r14, s390_r1);
4367 if (call->signature->ret->type == MONO_TYPE_R4)
4368 s390_ldebr (code, s390_f0, s390_f0);
4371 case OP_LCALL_MEMBASE:
4372 case OP_VCALL_MEMBASE:
4373 case OP_VOIDCALL_MEMBASE:
4374 case OP_CALL_MEMBASE: {
4375 s390_lg (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
4376 s390_basr (code, s390_r14, s390_r1);
4380 g_assert_not_reached ();
4383 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area +
4384 S390_STACK_ALIGNMENT - 1;
4385 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
4386 s390_lgr (code, s390_r1, ins->sreg1);
4387 s390_aghi (code, s390_r1, 14);
4388 s390_srlg (code, s390_r1, s390_r1, 0, 3);
4389 s390_sllg (code, s390_r1, s390_r1, 0, 3);
4390 s390_lg (code, s390_r13, 0, STK_BASE, 0);
4391 s390_lcgr (code, s390_r1, s390_r1);
4392 s390_la (code, STK_BASE, STK_BASE, s390_r1, 0);
4393 s390_stg (code, s390_r13, 0, STK_BASE, 0);
4394 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
4395 s390_srlg (code, ins->dreg, ins->dreg, 0, 3);
4396 s390_sllg (code, ins->dreg, ins->dreg, 0, 3);
4400 s390_br (code, s390_r14);
4404 s390_lgr (code, s390_r2, ins->sreg1);
4405 s390_basr (code, s390_r13, 0);
4407 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
4408 (gpointer)"mono_arch_throw_exception");
4409 s390_llong(code, 0);
4410 s390_lg (code, s390_r1, 0, s390_r13, 4);
4411 s390_basr (code, s390_r14, s390_r1);
4414 case OP_START_HANDLER: {
4415 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4416 s390_stg (code, s390_r14, 0,
4417 ins->inst_left->inst_basereg,
4418 ins->inst_left->inst_offset);
4420 s390_basr (code, s390_r13, 0);
4422 s390_llong(code, ins->inst_left->inst_offset);
4423 s390_lg (code, s390_r13, 0, s390_r13, 4);
4424 s390_stg (code, s390_r14, s390_r13,
4425 ins->inst_left->inst_basereg, 0);
4429 case OP_ENDFILTER: {
4430 if (ins->sreg1 != s390_r2)
4431 s390_lgr(code, s390_r2, ins->sreg1);
4432 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4433 s390_l (code, s390_r14, 0, ins->inst_left->inst_basereg,
4434 ins->inst_left->inst_offset);
4436 s390_basr (code, s390_r13, 0);
4438 s390_llong(code, ins->inst_left->inst_offset);
4439 s390_lg (code, s390_r13, 0, s390_r13, 4);
4440 s390_lg (code, s390_r14, s390_r13,
4441 ins->inst_left->inst_basereg, 0);
4443 s390_br (code, s390_r14);
4446 case CEE_ENDFINALLY: {
4447 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4448 s390_lg (code, s390_r14, 0, ins->inst_left->inst_basereg,
4449 ins->inst_left->inst_offset);
4451 s390_basr (code, s390_r13, 0);
4453 s390_llong(code, ins->inst_left->inst_offset);
4454 s390_lg (code, s390_r13, 0, s390_r13, 4);
4455 s390_lg (code, s390_r14, s390_r13,
4456 ins->inst_left->inst_basereg, 0);
4458 s390_br (code, s390_r14);
4461 case OP_CALL_HANDLER: {
4462 mono_add_patch_info (cfg, code-cfg->native_code,
4463 MONO_PATCH_INFO_BB, ins->inst_target_bb);
4464 s390_brasl (code, s390_r14, 0);
4468 ins->inst_c0 = code - cfg->native_code;
4472 EMIT_UNCOND_BRANCH(ins);
4475 s390_br (code, ins->sreg1);
4480 s390_lghi(code, ins->dreg, 1);
4482 s390_lghi(code, ins->dreg, 0);
4487 s390_lghi(code, ins->dreg, 1);
4489 s390_lghi(code, ins->dreg, 0);
4494 s390_lghi(code, ins->dreg, 1);
4496 s390_lghi(code, ins->dreg, 0);
4501 s390_lghi(code, ins->dreg, 1);
4503 s390_lghi(code, ins->dreg, 0);
4508 s390_lghi(code, ins->dreg, 1);
4510 s390_lghi(code, ins->dreg, 0);
4513 case OP_COND_EXC_EQ:
4514 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4516 case OP_COND_EXC_NE_UN:
4517 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4519 case OP_COND_EXC_LT:
4520 case OP_COND_EXC_LT_UN:
4521 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4523 case OP_COND_EXC_GT:
4524 case OP_COND_EXC_GT_UN:
4525 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4527 case OP_COND_EXC_GE:
4528 case OP_COND_EXC_GE_UN:
4529 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4531 case OP_COND_EXC_LE:
4532 case OP_COND_EXC_LE_UN:
4533 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4535 case OP_COND_EXC_OV:
4536 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4538 case OP_COND_EXC_NO:
4539 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4542 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4544 case OP_COND_EXC_NC:
4545 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4549 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4553 EMIT_COND_BRANCH (ins, S390_CC_NE);
4559 EMIT_COND_BRANCH (ins, S390_CC_LT);
4565 EMIT_COND_BRANCH (ins, S390_CC_GT);
4571 EMIT_COND_BRANCH (ins, S390_CC_GE);
4577 EMIT_COND_BRANCH (ins, S390_CC_LE);
4580 /* floating point opcodes */
4582 if (*((float *) ins->inst_p0) == 0) {
4583 s390_lzdr (code, ins->dreg);
4585 s390_basr (code, s390_r13, 0);
4587 s390_llong (code, ins->inst_p0);
4588 s390_lg (code, s390_r13, 0, s390_r13, 4);
4589 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4594 if (*((float *) ins->inst_p0) == 0) {
4595 s390_lzdr (code, ins->dreg);
4597 s390_basr (code, s390_r13, 0);
4599 s390_llong(code, ins->inst_p0);
4600 s390_lg (code, s390_r13, 0, s390_r13, 4);
4601 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4605 case OP_STORER8_MEMBASE_REG: {
4606 if (s390_is_uimm12(ins->inst_offset)) {
4607 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
4609 s390_basr (code, s390_r13, 0);
4611 s390_llong(code, ins->inst_offset);
4612 s390_lg (code, s390_r13, 0, s390_r13, 4);
4613 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
4617 case OP_LOADR8_MEMBASE: {
4618 if (s390_is_uimm12(ins->inst_offset)) {
4619 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4621 s390_basr (code, s390_r13, 0);
4623 s390_llong(code, ins->inst_offset);
4624 s390_lg (code, s390_r13, 0, s390_r13, 4);
4625 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4629 case OP_STORER4_MEMBASE_REG: {
4630 if (s390_is_uimm12(ins->inst_offset)) {
4631 s390_ledbr(code, s390_f15, ins->sreg1);
4632 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
4634 s390_basr (code, s390_r13, 0);
4636 s390_llong(code, ins->inst_offset);
4637 s390_lg (code, s390_r13, 0, s390_r13, 4);
4638 s390_ledbr(code, s390_f15, ins->sreg1);
4639 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
4643 case OP_LOADR4_MEMBASE: {
4644 if (s390_is_uimm12(ins->inst_offset)) {
4645 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4647 s390_basr (code, s390_r13, 0);
4649 s390_llong(code, ins->inst_offset);
4650 s390_lg (code, s390_r13, 0, s390_r13, 4);
4651 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4655 case CEE_CONV_R_UN: {
4656 s390_cdfbr (code, ins->dreg, ins->sreg1);
4657 s390_ltgr (code, ins->sreg1, ins->sreg1);
4658 s390_jnl (code, 12);
4659 s390_basr (code, s390_r13, 0);
4661 s390_word (code, 0x41f00000);
4662 s390_word (code, 0);
4663 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4667 s390_cdfbr (code, ins->dreg, ins->sreg1);
4671 s390_cdfbr (code, ins->dreg, ins->sreg1);
4674 case OP_FCONV_TO_I1:
4675 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4677 case OP_FCONV_TO_U1:
4678 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4680 case OP_FCONV_TO_I2:
4681 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4683 case OP_FCONV_TO_U2:
4684 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4686 case OP_FCONV_TO_I4:
4688 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4690 case OP_FCONV_TO_U4:
4692 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4694 case OP_FCONV_TO_I8:
4695 case OP_FCONV_TO_U8:
4696 g_assert_not_reached ();
4697 /* Implemented as helper calls */
4699 case OP_LCONV_TO_R_UN:
4700 g_assert_not_reached ();
4701 /* Implemented as helper calls */
4703 case OP_LCONV_TO_OVF_I: {
4704 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4706 s390_ltgr (code, ins->sreg2, ins->sreg2);
4707 s390_jnl (code, 0); CODEPTR(code, o[0]);
4708 s390_ltgr (code, ins->sreg1, ins->sreg1);
4709 s390_jnl (code, 0); CODEPTR(code, o[1]);
4710 s390_lhi (code, s390_r13, -1);
4711 s390_cgr (code, ins->sreg1, s390_r13);
4712 s390_jnz (code, 0); CODEPTR(code, o[2]);
4713 if (ins->dreg != ins->sreg2)
4714 s390_lgr (code, ins->dreg, ins->sreg2);
4715 s390_j (code, 0); CODEPTR(code, o[3]);
4716 PTRSLOT(code, o[0]);
4717 s390_jz (code, 0); CODEPTR(code, o[4]);
4718 PTRSLOT(code, o[1]);
4719 PTRSLOT(code, o[2]);
4720 mono_add_patch_info (cfg, code - cfg->native_code,
4721 MONO_PATCH_INFO_EXC, "OverflowException");
4722 s390_brasl (code, s390_r14, 0);
4723 PTRSLOT(code, o[3]);
4724 PTRSLOT(code, o[4]);
4728 s390_sqdbr (code, ins->dreg, ins->sreg1);
4732 if (ins->dreg == ins->sreg1)
4733 s390_adbr (code, ins->dreg, ins->sreg2);
4735 if (ins->dreg == ins->sreg2)
4736 s390_adbr (code, ins->dreg, ins->sreg1);
4738 s390_ldr (code, ins->dreg, ins->sreg1);
4739 s390_adbr (code, ins->dreg, ins->sreg2);
4745 if (ins->dreg == ins->sreg1)
4746 s390_sdbr (code, ins->dreg, ins->sreg2);
4748 s390_ldr (code, ins->dreg, ins->sreg1);
4749 s390_sdbr (code, ins->dreg, ins->sreg2);
4754 if (ins->dreg == ins->sreg1)
4755 s390_mdbr (code, ins->dreg, ins->sreg2);
4757 if (ins->dreg == ins->sreg2)
4758 s390_mdbr (code, ins->dreg, ins->sreg1);
4760 s390_ldr (code, ins->dreg, ins->sreg1);
4761 s390_mdbr (code, ins->dreg, ins->sreg2);
4767 if (ins->dreg == ins->sreg1)
4768 s390_ddbr (code, ins->dreg, ins->sreg2);
4770 s390_ldr (code, ins->dreg, ins->sreg1);
4771 s390_ddbr (code, ins->dreg, ins->sreg2);
4776 s390_lcdbr (code, ins->dreg, ins->sreg1);
4780 if (ins->dreg != ins->sreg1) {
4781 s390_ldr (code, ins->dreg, ins->sreg1);
4783 s390_didbr (code, ins->dreg, ins->sreg2, 5, s390_f15);
4787 s390_cdbr (code, ins->sreg1, ins->sreg2);
4791 s390_cdbr (code, ins->sreg1, ins->sreg2);
4792 s390_lghi (code, ins->dreg, 1);
4794 s390_lghi (code, ins->dreg, 0);
4798 s390_cdbr (code, ins->sreg1, ins->sreg2);
4799 s390_lghi (code, ins->dreg, 1);
4801 s390_lghi (code, ins->dreg, 0);
4805 s390_cdbr (code, ins->sreg1, ins->sreg2);
4806 s390_lghi (code, ins->dreg, 1);
4808 s390_lghi (code, ins->dreg, 0);
4812 s390_cdbr (code, ins->sreg1, ins->sreg2);
4813 s390_lghi (code, ins->dreg, 1);
4815 s390_lghi (code, ins->dreg, 0);
4819 s390_cdbr (code, ins->sreg1, ins->sreg2);
4820 s390_lghi (code, ins->dreg, 1);
4822 s390_lghi (code, ins->dreg, 0);
4826 EMIT_COND_BRANCH (ins, S390_CC_EQ|S390_CC_OV);
4829 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4832 EMIT_COND_BRANCH (ins, S390_CC_LT);
4835 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4838 EMIT_COND_BRANCH (ins, S390_CC_GT);
4841 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4844 EMIT_COND_BRANCH (ins, S390_CC_GE);
4847 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4850 EMIT_COND_BRANCH (ins, S390_CC_LE);
4853 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4855 case CEE_CKFINITE: {
4857 s390_lhi (code, s390_r13, 0x7f);
4858 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4859 s390_jz (code, 0); CODEPTR(code, o);
4860 mono_add_patch_info (cfg, code - cfg->native_code,
4861 MONO_PATCH_INFO_EXC, "ArithmeticException");
4862 s390_brasl (code, s390_r14,0);
4866 case OP_S390_MOVE: {
4867 if (ins->unused > 0) {
4868 if (ins->unused <= 256) {
4869 s390_mvc (code, ins->unused, ins->dreg,
4870 ins->inst_offset, ins->sreg1, ins->inst_imm);
4872 s390_lr (code, s390_r0, ins->dreg);
4873 if (s390_is_imm16 (ins->inst_offset)) {
4874 s390_aghi (code, s390_r0, ins->inst_offset);
4876 s390_basr (code, s390_r13, 0);
4878 s390_llong(code, ins->inst_offset);
4879 s390_a (code, s390_r0, 0, s390_r13, 4);
4881 s390_lr (code, s390_r12, ins->sreg1);
4882 if (s390_is_imm16 (ins->inst_imm)) {
4883 s390_aghi (code, s390_r12, ins->inst_imm);
4885 s390_basr (code, s390_r13, 0);
4887 s390_llong(code, ins->inst_imm);
4888 s390_ag (code, s390_r12, 0, s390_r13, 4);
4890 s390_lgr (code, s390_r1, ins->sreg1);
4891 s390_lgr (code, s390_r13, s390_r1);
4892 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4899 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4900 g_assert_not_reached ();
4903 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4904 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4905 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4906 // g_assert_not_reached ();
4912 last_offset = offset;
4917 cfg->code_len = code - cfg->native_code;
4920 /*========================= End of Function ========================*/
4922 /*------------------------------------------------------------------*/
4924 /* Name - mono_arch_register_lowlevel_calls */
4926 /* Function - Register routines to help with --trace operation. */
4928 /*------------------------------------------------------------------*/
4931 mono_arch_register_lowlevel_calls (void)
4933 mono_register_jit_icall (enter_method, "mono_enter_method", NULL, TRUE);
4934 mono_register_jit_icall (leave_method, "mono_leave_method", NULL, TRUE);
4937 /*========================= End of Function ========================*/
4939 /*------------------------------------------------------------------*/
4941 /* Name - mono_arch_patch_code */
4943 /* Function - Process the patch data created during the */
4944 /* instruction build process. This resolves jumps, */
4945 /* calls, variables etc. */
4947 /*------------------------------------------------------------------*/
4950 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4952 MonoJumpInfo *patch_info;
4954 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4955 unsigned char *ip = patch_info->ip.i + code;
4958 switch (patch_info->type) {
4959 case MONO_PATCH_INFO_BB:
4960 target = S390_RELATIVE((patch_info->data.bb->native_offset+code),
4962 ip += 2; /* Skip over op-code */
4964 case MONO_PATCH_INFO_ABS:
4965 *((gpointer *)(ip)) = patch_info->data.target;
4967 case MONO_PATCH_INFO_LABEL:
4968 target = S390_RELATIVE((patch_info->data.inst->inst_c0+code),ip);
4969 ip += 2; /* Skip over op-code */
4971 case MONO_PATCH_INFO_IP:
4974 case MONO_PATCH_INFO_METHOD_REL:
4975 g_assert_not_reached ();
4976 *((gpointer *)(ip)) = code + patch_info->data.offset;
4978 case MONO_PATCH_INFO_INTERNAL_METHOD: {
4979 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
4981 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
4982 g_assert_not_reached ();
4984 *((gpointer *)(ip)) = mono_icall_get_wrapper (mi);
4987 case MONO_PATCH_INFO_METHOD_JUMP: {
4990 /*------------------------------------------------------*/
4991 /* get the trampoline to the method from the domain */
4992 /*------------------------------------------------------*/
4993 *((gpointer *)(ip)) = mono_create_jump_trampoline (
4995 patch_info->data.method,
4999 list = g_hash_table_lookup (domain->jump_target_hash,
5000 patch_info->data.method);
5001 list = g_slist_prepend (list, ip);
5002 g_hash_table_insert (domain->jump_target_hash,
5003 patch_info->data.method, list);
5006 case MONO_PATCH_INFO_METHOD:
5007 if (patch_info->data.method == method) {
5008 *((gpointer *)(ip)) = code;
5010 /* get the trampoline to the method from the domain */
5011 *((gpointer *)(ip)) = mono_arch_create_jit_trampoline(patch_info->data.method);
5014 case MONO_PATCH_INFO_SWITCH: {
5015 gpointer *table = (gpointer *)patch_info->data.target;
5017 /*------------------------------------------------------*/
5018 /* ip is pointing at the basr r13,0/j +4 instruction */
5019 /* the vtable value follows this (i.e. ip+6) */
5020 /*------------------------------------------------------*/
5021 *((gconstpointer *)(ip+6)) = table;
5023 for (i = 0; i < patch_info->table_size; i++) {
5024 table [i] = (int)patch_info->data.table [i] + code;
5028 case MONO_PATCH_INFO_METHODCONST:
5029 case MONO_PATCH_INFO_CLASS:
5030 case MONO_PATCH_INFO_IMAGE:
5031 case MONO_PATCH_INFO_FIELD:
5032 target = S390_RELATIVE(patch_info->data.target, ip);
5034 case MONO_PATCH_INFO_R4:
5035 case MONO_PATCH_INFO_R8:
5036 g_assert_not_reached ();
5037 *((gconstpointer *)(ip + 2)) = patch_info->data.target;
5039 case MONO_PATCH_INFO_IID:
5040 mono_class_init (patch_info->data.klass);
5041 target = S390_RELATIVE(patch_info->data.klass->interface_id, ip);
5043 case MONO_PATCH_INFO_VTABLE:
5044 target = S390_RELATIVE(mono_class_vtable (domain, patch_info->data.klass),ip);
5047 case MONO_PATCH_INFO_CLASS_INIT:
5048 target = S390_RELATIVE(mono_create_class_init_trampoline (mono_class_vtable (domain, patch_info->data.klass)), ip);
5051 case MONO_PATCH_INFO_SFLDA: {
5052 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
5053 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && mono_class_needs_cctor_run (vtable->klass, method))
5054 /* Done by the generated code */
5058 mono_runtime_class_init (vtable);
5060 target = S390_RELATIVE((char*)vtable->data + patch_info->data.field->offset, ip);
5064 case MONO_PATCH_INFO_EXC_NAME:
5065 *((gconstpointer *)(ip)) = patch_info->data.name;
5067 case MONO_PATCH_INFO_LDSTR:
5068 target = mono_ldstr (domain, patch_info->data.token->image,
5069 mono_metadata_token_index (patch_info->data.token->token));
5071 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
5073 MonoClass *handle_class;
5075 handle = mono_ldtoken (patch_info->data.token->image,
5076 patch_info->data.token->token,
5077 &handle_class, NULL);
5078 mono_class_init (handle_class);
5079 mono_class_init (mono_class_from_mono_type (handle));
5084 case MONO_PATCH_INFO_LDTOKEN: {
5086 MonoClass *handle_class;
5088 handle = mono_ldtoken (patch_info->data.token->image,
5089 patch_info->data.token->token,
5090 &handle_class, NULL);
5091 mono_class_init (handle_class);
5096 case MONO_PATCH_INFO_EXC:
5097 /* everything is dealt with at epilog output time */
5100 g_assert_not_reached ();
5102 s390_patch (ip, target);
5106 /*========================= End of Function ========================*/
5108 /*------------------------------------------------------------------*/
5110 /* Name - mono_arch_max_epilog_size */
5112 /* Function - Determine the maximum size of the epilog code. */
5114 /*------------------------------------------------------------------*/
5117 mono_arch_max_epilog_size (MonoCompile *cfg)
5119 int max_epilog_size = 256;
5120 MonoJumpInfo *patch_info;
5122 if (cfg->method->save_lmf)
5123 max_epilog_size += 128;
5125 if (mono_jit_trace_calls != NULL)
5126 max_epilog_size += 128;
5128 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
5129 max_epilog_size += 128;
5131 /* count the number of exception infos */
5133 for (patch_info = cfg->patch_info;
5135 patch_info = patch_info->next) {
5136 if (patch_info->type == MONO_PATCH_INFO_EXC)
5137 max_epilog_size += 48;
5140 return max_epilog_size;
5143 /*========================= End of Function ========================*/
5145 /*------------------------------------------------------------------*/
5147 /* Name - mono_arch_emit_prolog */
5149 /* Function - Create the instruction sequence for a function */
5152 /*------------------------------------------------------------------*/
5155 mono_arch_emit_prolog (MonoCompile *cfg)
5157 MonoMethod *method = cfg->method;
5159 MonoMethodSignature *sig;
5161 int alloc_size, pos, max_offset, i, lmfOffset;
5167 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
5170 cfg->code_size = 384;
5171 cfg->native_code = code = g_malloc (cfg->code_size);
5173 if (cfg->flags & MONO_CFG_HAS_TAIL) {
5174 s390_stmg (code, s390_r2, s390_r14, STK_BASE, S390_PARM_SAVE_OFFSET);
5175 for (pos = 0; pos < 4; pos++)
5176 s390_std (code, pos*2, 0, STK_BASE,
5177 S390_FLOAT_SAVE_OFFSET+pos*sizeof(double));
5179 s390_stmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5182 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
5183 cfg->used_int_regs |= 1 << 11;
5186 alloc_size = cfg->stack_offset;
5188 cfg->stack_usage = alloc_size;
5189 s390_lgr (code, s390_r11, STK_BASE);
5190 if (s390_is_imm16 (-alloc_size)) {
5191 s390_aghi (code, STK_BASE, -alloc_size);
5193 int stackSize = alloc_size;
5194 while (stackSize > 32767) {
5195 s390_aghi (code, STK_BASE, -32767);
5198 s390_aghi (code, STK_BASE, -stackSize);
5200 s390_stg (code, s390_r11, 0, STK_BASE, 0);
5202 if (cfg->frame_reg != STK_BASE)
5203 s390_lgr (code, s390_r11, STK_BASE);
5205 /* compute max_offset in order to use short forward jumps
5206 * we always do it on s390 because the immediate displacement
5207 * for jumps is too small
5210 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5211 MonoInst *ins = bb->code;
5212 bb->max_offset = max_offset;
5214 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
5218 max_offset += ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
5223 /* load arguments allocated to register from the stack */
5224 sig = mono_method_signature (method);
5227 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
5229 if (cinfo->struct_ret) {
5230 ArgInfo *ainfo = &cinfo->ret;
5232 inst->unused = ainfo->vtsize;
5233 s390_stg (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5236 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
5237 ArgInfo *ainfo = cinfo->args + i;
5238 inst = cfg->varinfo [pos];
5240 if (inst->opcode == OP_REGVAR) {
5241 if (ainfo->regtype == RegTypeGeneral)
5242 s390_lgr (code, inst->dreg, ainfo->reg);
5243 else if (ainfo->regtype == RegTypeFP) {
5244 if (inst->dreg != ainfo->reg) {
5245 if (ainfo->size == 4) {
5246 s390_ledbr (code, inst->dreg, ainfo->reg);
5248 s390_ldr (code, inst->dreg, ainfo->reg);
5252 else if (ainfo->regtype == RegTypeBase) {
5253 s390_lgr (code, s390_r13, STK_BASE);
5254 s390_aghi(code, s390_r13, alloc_size);
5255 s390_lg (code, inst->dreg, 0, s390_r13, ainfo->offset);
5257 g_assert_not_reached ();
5259 if (cfg->verbose_level > 2)
5260 g_print ("Argument %d assigned to register %s\n",
5261 pos, mono_arch_regname (inst->dreg));
5263 if (ainfo->regtype == RegTypeGeneral) {
5264 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
5265 g_assert_not_reached();
5266 switch (ainfo->size) {
5268 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5271 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5274 s390_stg (code, ainfo->reg, 0,
5275 inst->inst_basereg, inst->inst_offset);
5278 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5280 } else if (ainfo->regtype == RegTypeBase) {
5281 } else if (ainfo->regtype == RegTypeFP) {
5282 if (ainfo->size == 8)
5283 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5284 else if (ainfo->size == 4)
5285 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
5287 g_assert_not_reached ();
5288 } else if (ainfo->regtype == RegTypeStructByVal) {
5289 int doffset = inst->inst_offset;
5291 if (ainfo->reg != STK_BASE)
5295 s390_lgr (code, s390_r13, STK_BASE);
5296 s390_aghi(code, s390_r13, alloc_size);
5298 switch (ainfo->size) {
5300 if (ainfo->reg == STK_BASE)
5301 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
5302 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
5305 if (ainfo->reg == STK_BASE)
5306 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
5307 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
5310 if (ainfo->reg == STK_BASE)
5311 s390_l (code, reg, 0, s390_r13, ainfo->offset);
5312 s390_st (code, reg, 0, inst->inst_basereg, doffset);
5315 if (ainfo->reg == STK_BASE)
5316 s390_lg (code, s390_r0, 0, s390_r13, ainfo->offset);
5317 s390_stg (code, reg, 0, inst->inst_basereg, doffset);
5320 } else if (ainfo->regtype == RegTypeStructByAddr) {
5321 if (ainfo->reg == STK_BASE) {
5322 s390_lgr (code, s390_r13, ainfo->reg);
5323 s390_aghi(code, s390_r13, alloc_size);
5324 s390_lg (code, s390_r13, 0, s390_r13,
5325 ainfo->offparm + S390_MINIMAL_STACK_SIZE);
5326 code = emit_memcpy (code, abs(ainfo->vtsize),
5328 inst->inst_offset, s390_r13, 0);
5330 code = emit_memcpy (code, abs(ainfo->vtsize),
5336 g_assert_not_reached ();
5341 if (method->save_lmf) {
5342 /*---------------------------------------------------------------*/
5343 /* Preserve the parameter registers while we fix up the lmf */
5344 /*---------------------------------------------------------------*/
5345 s390_lgr (code, s390_r7, s390_r2);
5346 s390_lgr (code, s390_r8, s390_r3);
5347 s390_lgr (code, s390_r9, s390_r4);
5348 s390_lgr (code, s390_r10, s390_r5);
5350 /*---------------------------------------------------------------*/
5351 /* On return from this call r2 have the address of the &lmf */
5352 /*---------------------------------------------------------------*/
5353 s390_basr(code, s390_r13, 0);
5355 mono_add_patch_info (cfg, code - cfg->native_code,
5356 MONO_PATCH_INFO_INTERNAL_METHOD,
5357 (gpointer)"mono_get_lmf_addr");
5358 s390_llong(code, 0);
5359 s390_lg (code, s390_r1, 0, s390_r13, 4);
5360 s390_basr (code, s390_r14, s390_r1);
5362 /*---------------------------------------------------------------*/
5363 /* we build the MonoLMF structure on the stack - see mini-s390.h */
5364 /*---------------------------------------------------------------*/
5365 lmfOffset = alloc_size - sizeof(MonoLMF);
5367 s390_lgr (code, s390_r13, cfg->frame_reg);
5368 s390_aghi (code, s390_r13, lmfOffset);
5370 /*---------------------------------------------------------------*/
5371 /* Set lmf.lmf_addr = jit_tls->lmf */
5372 /*---------------------------------------------------------------*/
5373 s390_stg (code, s390_r2, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, lmf_addr));
5375 /*---------------------------------------------------------------*/
5376 /* Get current lmf */
5377 /*---------------------------------------------------------------*/
5378 s390_lg (code, s390_r0, 0, s390_r2, 0);
5380 /*---------------------------------------------------------------*/
5381 /* Set our lmf as the current lmf */
5382 /*---------------------------------------------------------------*/
5383 s390_stg (code, s390_r13, 0, s390_r2, 0);
5385 /*---------------------------------------------------------------*/
5386 /* Have our lmf.previous_lmf point to the last lmf */
5387 /*---------------------------------------------------------------*/
5388 s390_stg (code, s390_r0, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, previous_lmf));
5390 /*---------------------------------------------------------------*/
5391 /* save method info */
5392 /*---------------------------------------------------------------*/
5393 s390_basr (code, s390_r1, 0);
5395 s390_llong (code, method);
5396 s390_lg (code, s390_r1, 0, s390_r1, 4);
5397 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, method));
5399 /*---------------------------------------------------------------*/
5400 /* save the current IP */
5401 /*---------------------------------------------------------------*/
5402 s390_lgr (code, s390_r1, cfg->frame_reg);
5403 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
5404 s390_lg (code, s390_r1, 0, s390_r1, S390_RET_ADDR_OFFSET);
5405 s390_la (code, s390_r1, 0, s390_r1, 0);
5406 s390_stg (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
5408 /*---------------------------------------------------------------*/
5409 /* Save general and floating point registers */
5410 /*---------------------------------------------------------------*/
5411 s390_stmg (code, s390_r2, s390_r12, s390_r13, G_STRUCT_OFFSET(MonoLMF, gregs[2]));
5412 for (i = 0; i < 16; i++) {
5413 s390_std (code, i, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, fregs[i]));
5416 /*---------------------------------------------------------------*/
5417 /* Restore the parameter registers now that we've set up the lmf */
5418 /*---------------------------------------------------------------*/
5419 s390_lgr (code, s390_r2, s390_r7);
5420 s390_lgr (code, s390_r3, s390_r8);
5421 s390_lgr (code, s390_r4, s390_r9);
5422 s390_lgr (code, s390_r5, s390_r10);
5426 code = mono_arch_instrument_prolog (cfg, enter_method, code, TRUE);
5428 cfg->code_len = code - cfg->native_code;
5430 g_assert(cfg->code_len < cfg->code_size);
5436 /*========================= End of Function ========================*/
5438 /*------------------------------------------------------------------*/
5440 /* Name - mono_arch_emit_epilog */
5442 /* Function - Emit the instructions for a function epilog. */
5444 /*------------------------------------------------------------------*/
5447 mono_arch_emit_epilog (MonoCompile *cfg)
5449 MonoJumpInfo *patch_info;
5450 MonoMethod *method = cfg->method;
5451 MonoMethodSignature *sig = mono_method_signature (method);
5456 code = cfg->native_code + cfg->code_len;
5458 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5459 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5463 if (method->save_lmf)
5464 code = restoreLMF(cfg, code);
5466 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
5467 s390_lg (code, STK_BASE, 0, STK_BASE, 0);
5469 code = backUpStackPtr(cfg, code);
5471 s390_lmg (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5472 s390_br (code, s390_r14);
5474 /* add code to raise exceptions */
5475 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5476 switch (patch_info->type) {
5477 case MONO_PATCH_INFO_EXC: {
5478 /*---------------------------------------------*/
5479 /* Patch the branch in epilog to come here */
5480 /*---------------------------------------------*/
5481 s390_patch (patch_info->ip.i+cfg->native_code+2,
5482 S390_RELATIVE(code,patch_info->ip.i+cfg->native_code));
5483 /*---------------------------------------------*/
5484 /* Patch the parameter passed to the handler */
5485 /*---------------------------------------------*/
5486 s390_basr (code, s390_r13, 0);
5488 mono_add_patch_info (cfg, code - cfg->native_code,
5489 MONO_PATCH_INFO_EXC_NAME,
5490 patch_info->data.target);
5491 s390_llong(code, 0);
5492 /*-----------------------------------------------------*/
5493 /* Load the return address and the parameter register */
5494 /*-----------------------------------------------------*/
5495 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
5496 cfg->native_code + 8), code));
5497 s390_lg (code, s390_r2, 0, s390_r13, 4);
5498 /*-----------------------------------------------------*/
5499 /* Reuse the current patch to set the jump */
5500 /*-----------------------------------------------------*/
5501 s390_basr (code, s390_r13, 0);
5503 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5504 patch_info->data.name = "mono_arch_throw_exception_by_name";
5505 patch_info->ip.i = code - cfg->native_code;
5506 s390_llong(code, 0);
5507 s390_lg (code, s390_r1, 0, s390_r13, 4);
5508 s390_br (code, s390_r1);
5517 cfg->code_len = code - cfg->native_code;
5519 g_assert (cfg->code_len < cfg->code_size);
5523 /*========================= End of Function ========================*/
5525 /*------------------------------------------------------------------*/
5527 /* Name - mono_arch_setup_jit_tls_data */
5529 /* Function - Setup the JIT's Thread Level Specific Data. */
5531 /*------------------------------------------------------------------*/
5534 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
5538 /*========================= End of Function ========================*/
5540 /*------------------------------------------------------------------*/
5542 /* Name - mono_arch_free_jit_tls_data */
5544 /* Function - Free tls data. */
5546 /*------------------------------------------------------------------*/
5549 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5553 /*========================= End of Function ========================*/
5555 /*------------------------------------------------------------------*/
5557 /* Name - mono_arch_emit_this_vret_args */
5561 /*------------------------------------------------------------------*/
5564 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
5566 int this_dreg = s390_r2;
5569 this_dreg = s390_r3;
5571 /* add the this argument */
5572 if (this_reg != -1) {
5574 MONO_INST_NEW (cfg, this, OP_SETREG);
5575 this->type = this_type;
5576 this->sreg1 = this_reg;
5577 this->dreg = this_dreg;
5578 mono_bblock_add_inst (cfg->cbb, this);
5583 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
5584 vtarg->type = STACK_MP;
5585 vtarg->sreg1 = vt_reg;
5586 vtarg->dreg = s390_r2;
5587 mono_bblock_add_inst (cfg->cbb, vtarg);
5591 /*========================= End of Function ========================*/
5593 /*------------------------------------------------------------------*/
5595 /* Name - mono_arch_get_inst_for_method */
5597 /* Function - Check for opcodes we can handle directly in */
5600 /*------------------------------------------------------------------*/
5603 mono_arch_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5605 MonoInst *ins = NULL;
5607 if (cmethod->klass == mono_defaults.math_class) {
5608 if (strcmp (cmethod->name, "Sqrt") == 0) {
5609 MONO_INST_NEW (cfg, ins, OP_SQRT);
5610 ins->inst_i0 = args [0];
5616 /*========================= End of Function ========================*/
5618 /*------------------------------------------------------------------*/
5620 /* Name - mono_arch_print_tree */
5622 /* Function - Print platform-specific opcode details. */
5624 /* Returns - 1 - opcode details have been printed */
5625 /* 0 - opcode details have not been printed */
5627 /*------------------------------------------------------------------*/
5630 mono_arch_print_tree (MonoInst *tree, int arity)
5634 switch (tree->opcode) {
5635 case OP_S390_LOADARG:
5636 case OP_S390_ARGPTR:
5637 case OP_S390_STKARG:
5638 printf ("[0x%x(%s)]", tree->inst_offset,
5639 mono_arch_regname (tree->inst_basereg));
5643 printf ("[0x%x(%d,%s),0x%x(%s)]",
5644 tree->inst_offset, tree->unused,
5645 tree->dreg, tree->inst_imm,
5649 case OP_S390_SETF4RET:
5650 printf ("[f%d,f%d]",
5651 mono_arch_regname (tree->dreg),
5652 mono_arch_regname (tree->sreg1));
5659 /*========================= End of Function ========================*/
5661 /*------------------------------------------------------------------*/
5663 /* Name - mono_arch_regalloc_cost */
5665 /* Function - Determine the cost, in the number of memory */
5666 /* references, of the action of allocating the var- */
5667 /* iable VMV into a register during global register */
5670 /* Returns - Cost */
5672 /*------------------------------------------------------------------*/
5675 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5681 /*========================= End of Function ========================*/
5683 MonoInst* mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5688 MonoInst* mono_arch_get_thread_intrinsic (MonoCompile* cfg)