1 /*------------------------------------------------------------------*/
3 /* Name - mini-s390.c */
5 /* Function - S/390 backend for the Mono code generator. */
7 /* Name - Neale Ferguson (Neale.Ferguson@SoftwareAG-usa.com) */
9 /* Date - January, 2004 */
11 /* Derivation - From mini-x86 & mini-ppc by - */
12 /* Paolo Molaro (lupus@ximian.com) */
13 /* Dietmar Maurer (dietmar@ximian.com) */
15 /*------------------------------------------------------------------*/
17 /*------------------------------------------------------------------*/
19 /*------------------------------------------------------------------*/
21 #define NOT_IMPLEMENTED(x) \
22 g_error ("FIXME: %s is not yet implemented.", x);
24 #define EMIT_COND_BRANCH(ins,cond) \
26 if (ins->flags & MONO_INST_BRLABEL) { \
27 if (ins->inst_i0->inst_c0) { \
29 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
30 if (s390_is_uimm16(displace)) { \
31 s390_brc (code, cond, displace); \
33 s390_jcl (code, cond, displace); \
36 mono_add_patch_info (cfg, code - cfg->native_code, \
37 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
38 s390_jcl (code, cond, 0); \
41 if (ins->inst_true_bb->native_offset) { \
43 displace = ((cfg->native_code + \
44 ins->inst_true_bb->native_offset) - code) / 2; \
45 if (s390_is_uimm16(displace)) { \
46 s390_brc (code, cond, displace); \
48 s390_jcl (code, cond, displace); \
51 mono_add_patch_info (cfg, code - cfg->native_code, \
52 MONO_PATCH_INFO_BB, ins->inst_true_bb); \
53 s390_jcl (code, cond, 0); \
58 #define EMIT_UNCOND_BRANCH(ins) \
60 if (ins->flags & MONO_INST_BRLABEL) { \
61 if (ins->inst_i0->inst_c0) { \
63 displace = ((cfg->native_code + ins->inst_i0->inst_c0) - code) / 2; \
64 if (s390_is_uimm16(displace)) { \
65 s390_brc (code, S390_CC_UN, displace); \
67 s390_jcl (code, S390_CC_UN, displace); \
70 mono_add_patch_info (cfg, code - cfg->native_code, \
71 MONO_PATCH_INFO_LABEL, ins->inst_i0); \
72 s390_jcl (code, S390_CC_UN, 0); \
75 if (ins->inst_target_bb->native_offset) { \
77 displace = ((cfg->native_code + \
78 ins->inst_target_bb->native_offset) - code) / 2; \
79 if (s390_is_uimm16(displace)) { \
80 s390_brc (code, S390_CC_UN, displace); \
82 s390_jcl (code, S390_CC_UN, displace); \
85 mono_add_patch_info (cfg, code - cfg->native_code, \
86 MONO_PATCH_INFO_BB, ins->inst_target_bb); \
87 s390_jcl (code, S390_CC_UN, 0); \
92 #define EMIT_COND_SYSTEM_EXCEPTION(cond,exc_name) \
94 mono_add_patch_info (cfg, code - cfg->native_code, \
95 MONO_PATCH_INFO_EXC, exc_name); \
96 s390_jcl (code, cond, 0); \
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(gint32)+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-s390.h"
132 #include "cpu-s390.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 gint32 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 guint32 * 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 *, gboolean);
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 = s390;
250 static gboolean tls_offset_inited = FALSE;
252 /*====================== End of Global Variables ===================*/
254 /*------------------------------------------------------------------*/
256 /* Name - mono_arch_regname */
258 /* Function - Returns the name of the register specified by */
259 /* the input parameter. */
261 /*------------------------------------------------------------------*/
264 mono_arch_regname (int reg) {
265 static const char * rnames[] = {
266 "s390_r0", "s390_sp", "s390_r2", "s390_r3", "s390_r4",
267 "s390_r5", "s390_r6", "s390_r7", "s390_r8", "s390_r9",
268 "s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
271 if (reg >= 0 && reg < 16)
276 /*========================= End of Function ========================*/
278 /*------------------------------------------------------------------*/
280 /* Name - emit_memcpy */
282 /* Function - Emit code to move from memory-to-memory based on */
283 /* the size of the variable. r0 is overwritten. */
285 /*------------------------------------------------------------------*/
288 emit_memcpy (guint8 *code, int size, int dreg, int doffset, int sreg, int soffset)
292 s390_l (code, s390_r0, 0, sreg, soffset);
293 s390_st (code, s390_r0, 0, dreg, doffset);
297 s390_icm (code, s390_r0, 14, sreg, soffset);
298 s390_stcm (code, s390_r0, 14, dreg, doffset);
302 s390_lh (code, s390_r0, 0, sreg, soffset);
303 s390_sth (code, s390_r0, 0, dreg, doffset);
307 s390_ic (code, s390_r0, 0, sreg, soffset);
308 s390_stc (code, s390_r0, 0, dreg, doffset);
319 s390_mvc (code, len, dreg, doffset, sreg, soffset);
326 /*========================= End of Function ========================*/
328 /*------------------------------------------------------------------*/
330 /* Name - arch_get_argument_info */
332 /* Function - Gathers information on parameters such as size, */
333 /* alignment, and padding. arg_info should be large */
334 /* enough to hold param_count + 1 entries. */
336 /* Parameters - @csig - Method signature */
337 /* @param_count - No. of parameters to consider */
338 /* @arg_info - An array to store the result info */
340 /* Returns - Size of the activation frame */
342 /*------------------------------------------------------------------*/
345 mono_arch_get_argument_info (MonoMethodSignature *csig,
347 MonoJitArgumentInfo *arg_info)
349 int k, frame_size = 0;
350 int size, align, pad;
353 if (MONO_TYPE_ISSTRUCT (csig->ret)) {
354 frame_size += sizeof (gpointer);
358 arg_info [0].offset = offset;
361 frame_size += sizeof (gpointer);
365 arg_info [0].size = frame_size;
367 for (k = 0; k < param_count; k++) {
370 size = mono_type_native_stack_size (csig->params [k], &align);
372 size = mono_type_stack_size (csig->params [k], &align);
374 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
375 arg_info [k].pad = pad;
377 arg_info [k + 1].pad = 0;
378 arg_info [k + 1].size = size;
380 arg_info [k + 1].offset = offset;
384 align = MONO_ARCH_FRAME_ALIGNMENT;
385 frame_size += pad = (align - (frame_size & (align - 1))) & (align - 1);
386 arg_info [k].pad = pad;
391 /*========================= End of Function ========================*/
393 /*------------------------------------------------------------------*/
395 /* Name - restoreLMF */
397 /* Function - Restore the LMF state prior to exiting a method. */
399 /*------------------------------------------------------------------*/
401 static inline guint8 *
402 restoreLMF(MonoCompile *cfg, guint8 *code)
406 s390_lr (code, s390_r13, cfg->frame_reg);
408 lmfOffset = cfg->stack_usage - sizeof(MonoLMF);
410 /*-------------------------------------------------*/
412 /*-------------------------------------------------*/
413 s390_ahi (code, s390_r13, lmfOffset);
415 /*-------------------------------------------------*/
416 /* r6 = &jit_tls->lmf */
417 /*-------------------------------------------------*/
418 s390_l (code, s390_r6, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, lmf_addr));
420 /*-------------------------------------------------*/
421 /* r0 = lmf.previous_lmf */
422 /*-------------------------------------------------*/
423 s390_l (code, s390_r0, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, previous_lmf));
425 /*-------------------------------------------------*/
426 /* jit_tls->lmf = previous_lmf */
427 /*-------------------------------------------------*/
428 s390_l (code, s390_r13, 0, s390_r6, 0);
429 s390_st (code, s390_r0, 0, s390_r6, 0);
433 /*========================= End of Function ========================*/
435 /*------------------------------------------------------------------*/
437 /* Name - backStackPtr. */
439 /* Function - Restore Stack Pointer to previous frame. */
441 /*------------------------------------------------------------------*/
443 static inline guint8 *
444 backUpStackPtr(MonoCompile *cfg, guint8 *code)
446 int stackSize = cfg->stack_usage;
448 if (s390_is_imm16 (cfg->stack_usage)) {
449 s390_ahi (code, STK_BASE, cfg->stack_usage);
451 while (stackSize > 32767) {
452 s390_ahi (code, STK_BASE, 32767);
455 s390_ahi (code, STK_BASE, stackSize);
460 /*========================= End of Function ========================*/
462 /*------------------------------------------------------------------*/
466 /* Function - Perform nice indenting to current level */
468 /*------------------------------------------------------------------*/
474 indent_level += diff;
481 indent_level += diff;
484 /*========================= End of Function ========================*/
486 /*------------------------------------------------------------------*/
488 /* Name - decodeParm */
490 /* Function - Decode a parameter for the trace. */
492 /*------------------------------------------------------------------*/
495 decodeParm(MonoType *type, void *curParm, int size)
500 printf("[BYREF:%p], ", *((char **) curParm));
502 simpleType = type->type;
504 switch (simpleType) {
506 printf ("[INTPTR:%p], ", *((int **) curParm));
509 printf ("[UINTPTR:%p], ", *((int **) curParm));
511 case MONO_TYPE_BOOLEAN :
512 printf ("[BOOL:%p], ", *((int *) curParm));
514 case MONO_TYPE_CHAR :
515 printf ("[CHAR:%p], ", *((int *) curParm));
518 printf ("[INT1:%d], ", *((int *) curParm));
521 printf ("[INT2:%d], ", *((int *) curParm));
524 printf ("[INT4:%d], ", *((int *) curParm));
527 printf ("[UINT1:%ud], ", *((unsigned int *) curParm));
530 printf ("[UINT2:%ud], ", *((guint16 *) curParm));
533 printf ("[UINT4:%ud], ", *((guint32 *) curParm));
536 printf ("[UINT8:%ul], ", *((guint64 *) curParm));
538 case MONO_TYPE_STRING : {
539 MonoString *s = *((MonoString **) curParm);
541 g_assert (((MonoObject *) s)->vtable->klass == mono_defaults.string_class);
542 printf("[STRING:%p:%s], ", s, mono_string_to_utf8(s));
544 printf("[STRING:null], ");
548 case MONO_TYPE_CLASS :
549 case MONO_TYPE_OBJECT : {
550 MonoObject *obj = *((MonoObject **) curParm);
553 printf("[CLASS/OBJ:");
554 class = obj->vtable->klass;
555 if (class == mono_defaults.string_class) {
556 printf("[STRING:%p:%s]",
557 *obj, mono_string_to_utf8 (obj));
558 } else if (class == mono_defaults.int32_class) {
559 printf("[INT32:%p:%d]",
560 obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
563 class->name_space, class->name, obj);
566 printf("[OBJECT:null], ");
571 printf("[PTR:%p], ", *((gpointer **) (curParm)));
573 case MONO_TYPE_FNPTR :
574 printf("[FNPTR:%p], ", *((gpointer **) (curParm)));
576 case MONO_TYPE_ARRAY :
577 printf("[ARRAY:%p], ", *((gpointer **) (curParm)));
579 case MONO_TYPE_SZARRAY :
580 printf("[SZARRAY:%p], ", *((gpointer **) (curParm)));
583 printf("[INT8:%lld], ", *((gint64 *) (curParm)));
586 printf("[FLOAT4:%f], ", *((float *) (curParm)));
589 printf("[FLOAT8:%g], ", *((double *) (curParm)));
591 case MONO_TYPE_VALUETYPE : {
593 if (type->data.klass->enumtype) {
594 simpleType = type->data.klass->enum_basetype->type;
595 printf("{VALUETYPE} - ");
598 printf("[VALUETYPE:");
599 for (i = 0; i < size; i++)
600 printf("%02x,", *((guint8 *)curParm+i));
605 printf("[?? - %d], ",simpleType);
610 /*========================= End of Function ========================*/
612 /*------------------------------------------------------------------*/
614 /* Name - enter_method */
616 /* Function - Perform tracing of the entry to the current */
619 /*------------------------------------------------------------------*/
622 enter_method (MonoMethod *method, RegParm *rParm, char *sp)
624 int i, oParm = 0, iParm = 0;
627 MonoJitArgumentInfo *arg_info;
628 MonoMethodSignature *sig;
636 fname = mono_method_full_name (method, TRUE);
638 printf ("ENTER: %s(", fname);
641 ip = (*(guint32 *) (sp+S390_RET_ADDR_OFFSET)) & 0x7fffffff;
642 printf (") ip: %p sp: %p - ", ip, sp);
647 sig = method->signature;
649 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
651 if (cinfo->struct_ret) {
652 printf ("[VALUERET:%p], ", rParm->gr[0]);
657 gpointer *this = (gpointer *) rParm->gr[iParm];
658 obj = (MonoObject *) this;
659 if (method->klass->valuetype) {
661 printf("this:[value:%p:%08x], ",
662 this, *((guint32 *)(this+sizeof(MonoObject))));
664 printf ("this:[NULL], ");
667 class = obj->vtable->klass;
668 if (class == mono_defaults.string_class) {
669 printf ("this:[STRING:%p:%s], ",
670 obj, mono_string_to_utf8 ((MonoString *)obj));
672 printf ("this:%p[%s.%s], ",
673 obj, class->name_space, class->name);
676 printf ("this:NULL, ");
681 for (i = 0; i < sig->param_count; ++i) {
682 ainfo = cinfo->args + (i + oParm);
683 switch (ainfo->regtype) {
684 case RegTypeGeneral :
685 decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
688 decodeParm(sig->params[i], &(rParm->fp[ainfo->reg]), ainfo->size);
691 decodeParm(sig->params[i], sp+ainfo->offset, ainfo->size);
693 case RegTypeStructByVal :
694 if (ainfo->reg != STK_BASE)
695 curParm = &(rParm->gr[ainfo->reg-2]);
697 curParm = sp+ainfo->offset;
699 switch (ainfo->vtsize) {
705 decodeParm(sig->params[i],
710 decodeParm(sig->params[i],
711 *((char **) curParm),
715 case RegTypeStructByAddr :
716 if (ainfo->reg != STK_BASE)
717 curParm = &(rParm->gr[ainfo->reg-2]);
719 curParm = sp+ainfo->offset;
721 decodeParm(sig->params[i],
722 *((char **) curParm),
734 /*========================= End of Function ========================*/
736 /*------------------------------------------------------------------*/
738 /* Name - leave_method */
742 /*------------------------------------------------------------------*/
745 leave_method (MonoMethod *method, ...)
752 va_start(ap, method);
754 fname = mono_method_full_name (method, TRUE);
756 printf ("LEAVE: %s", fname);
759 type = method->signature->ret;
762 switch (type->type) {
765 case MONO_TYPE_BOOLEAN: {
766 int val = va_arg (ap, int);
768 printf ("[TRUE:%d]", val);
774 case MONO_TYPE_CHAR: {
775 int val = va_arg (ap, int);
776 printf ("[CHAR:%d]", val);
780 int val = va_arg (ap, int);
781 printf ("[INT1:%d]", val);
785 int val = va_arg (ap, int);
786 printf ("[UINT1:%d]", val);
790 int val = va_arg (ap, int);
791 printf ("[INT2:%d]", val);
795 int val = va_arg (ap, int);
796 printf ("[UINT2:%d]", val);
800 int val = va_arg (ap, int);
801 printf ("[INT4:%d]", val);
805 int val = va_arg (ap, int);
806 printf ("[UINT4:%d]", val);
810 int *val = va_arg (ap, int*);
811 printf ("[INT:%d]", val);
816 int *val = va_arg (ap, int*);
817 printf ("[UINT:%d]", val);
821 case MONO_TYPE_STRING: {
822 MonoString *s = va_arg (ap, MonoString *);
825 g_assert (((MonoObject *)s)->vtable->klass == mono_defaults.string_class);
826 printf ("[STRING:%p:%s]", s, mono_string_to_utf8 (s));
828 printf ("[STRING:null], ");
831 case MONO_TYPE_CLASS:
832 case MONO_TYPE_OBJECT: {
833 MonoObject *o = va_arg (ap, MonoObject *);
836 if (o->vtable->klass == mono_defaults.boolean_class) {
837 printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
838 } else if (o->vtable->klass == mono_defaults.int32_class) {
839 printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
840 } else if (o->vtable->klass == mono_defaults.int64_class) {
841 printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
843 printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
845 printf ("[OBJECT:%p]", o);
850 case MONO_TYPE_FNPTR:
851 case MONO_TYPE_ARRAY:
852 case MONO_TYPE_SZARRAY: {
853 gpointer p = va_arg (ap, gpointer);
854 printf ("[result=%p]", p);
858 gint64 l = va_arg (ap, gint64);
859 printf ("[LONG:%lld]", l);
863 double f = va_arg (ap, double);
864 printf ("[FLOAT4:%f]\n", (float) f);
868 double f = va_arg (ap, double);
869 printf ("[FLOAT8:%g]\n", f);
872 case MONO_TYPE_VALUETYPE:
873 if (type->data.klass->enumtype) {
874 type = type->data.klass->enum_basetype;
877 guint8 *p = va_arg (ap, gpointer);
879 size = mono_type_size (type, &align);
881 for (j = 0; p && j < size; j++)
882 printf ("%02x,", p [j]);
887 printf ("(unknown return type %x)",
888 method->signature->ret->type);
891 ip = ((gint32) __builtin_return_address (0)) & 0x7fffffff;
892 printf (" ip: %p\n", ip);
895 /*========================= End of Function ========================*/
897 /*------------------------------------------------------------------*/
899 /* Name - mono_arch_cpu_init */
901 /* Function - Perform CPU specific initialization to execute */
904 /*------------------------------------------------------------------*/
907 mono_arch_cpu_init (void)
911 /*--------------------------------------*/
912 /* Set default rounding mode for FP */
913 /*--------------------------------------*/
914 __asm__ ("SRNM\t%0\n\t"
918 /*========================= End of Function ========================*/
920 /*------------------------------------------------------------------*/
922 /* Name - mono_arch_cpu_optimizazions */
924 /* Function - Returns the optimizations supported on this CPU */
926 /*------------------------------------------------------------------*/
929 mono_arch_cpu_optimizazions (guint32 *exclude_mask)
933 /* no s390-specific optimizations yet */
934 *exclude_mask = MONO_OPT_INLINE|MONO_OPT_LINEARS;
938 /*========================= End of Function ========================*/
940 /*------------------------------------------------------------------*/
946 /*------------------------------------------------------------------*/
949 is_regsize_var (MonoType *t) {
958 case MONO_TYPE_OBJECT:
959 case MONO_TYPE_STRING:
960 case MONO_TYPE_CLASS:
961 case MONO_TYPE_SZARRAY:
962 case MONO_TYPE_ARRAY:
964 case MONO_TYPE_VALUETYPE:
965 if (t->data.klass->enumtype)
966 return is_regsize_var (t->data.klass->enum_basetype);
972 /*========================= End of Function ========================*/
974 /*------------------------------------------------------------------*/
976 /* Name - mono_arch_get_allocatable_int_vars */
980 /*------------------------------------------------------------------*/
983 mono_arch_get_allocatable_int_vars (MonoCompile *cfg)
988 for (i = 0; i < cfg->num_varinfo; i++) {
989 MonoInst *ins = cfg->varinfo [i];
990 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
993 if (vmv->range.first_use.abs_pos > vmv->range.last_use.abs_pos)
996 if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) || (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
999 /* we can only allocate 32 bit values */
1000 if (is_regsize_var (ins->inst_vtype)) {
1001 g_assert (MONO_VARINFO (cfg, i)->reg == -1);
1002 g_assert (i == vmv->idx);
1003 vars = mono_varlist_insert_sorted (cfg, vars, vmv, FALSE);
1010 /*========================= End of Function ========================*/
1012 /*------------------------------------------------------------------*/
1014 /* Name - mono_arch_global_int_regs */
1016 /* Function - Return a list of usable integer registers. */
1018 /*------------------------------------------------------------------*/
1021 mono_arch_get_global_int_regs (MonoCompile *cfg)
1026 for (i = 3; i < top; ++i)
1027 regs = g_list_prepend (regs, GUINT_TO_POINTER (i));
1032 /*========================= End of Function ========================*/
1034 /*------------------------------------------------------------------*/
1036 /* Name - mono_arch_flush_icache */
1038 /* Function - Flush the CPU icache. */
1040 /*------------------------------------------------------------------*/
1043 mono_arch_flush_icache (guint8 *code, gint size)
1047 /*========================= End of Function ========================*/
1049 /*------------------------------------------------------------------*/
1051 /* Name - add_general */
1053 /* Function - Determine code and stack size incremements for a */
1056 /*------------------------------------------------------------------*/
1059 add_general (guint *gr, size_data *sz, ArgInfo *ainfo, gboolean simple)
1062 if (*gr > S390_LAST_ARG_REG) {
1063 sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
1064 ainfo->offset = sz->stack_size;
1065 ainfo->reg = STK_BASE;
1066 ainfo->regtype = RegTypeBase;
1067 sz->stack_size += sizeof(int);
1068 sz->code_size += 12;
1074 if (*gr > S390_LAST_ARG_REG - 1) {
1075 sz->stack_size = S390_ALIGN(sz->stack_size, S390_STACK_ALIGNMENT);
1076 ainfo->offset = sz->stack_size;
1077 ainfo->reg = STK_BASE;
1078 ainfo->regtype = RegTypeBase;
1079 sz->stack_size += sizeof(long long);
1080 sz->code_size += 10;
1090 /*========================= End of Function ========================*/
1092 /*------------------------------------------------------------------*/
1094 /* Name - calculate_sizes */
1096 /* Function - Determine the amount of space required for code */
1097 /* and stack. In addition determine starting points */
1098 /* for stack-based parameters, and area for struct- */
1099 /* ures being returned on the stack. */
1101 /*------------------------------------------------------------------*/
1104 calculate_sizes (MonoMethodSignature *sig, size_data *sz,
1105 gboolean string_ctor)
1107 guint i, fr, gr, size, nWords;
1108 int nParm = sig->hasthis + sig->param_count;
1109 guint32 simpletype, align;
1110 CallInfo *cinfo = g_malloc0 (sizeof (CallInfo) + sizeof (ArgInfo) * nParm);
1115 cinfo->struct_ret = 0;
1117 sz->stack_size = S390_MINIMAL_STACK_SIZE;
1121 /*----------------------------------------------------------*/
1122 /* We determine the size of the return code/stack in case we*/
1123 /* need to reserve a register to be used to address a stack */
1124 /* area that the callee will use. */
1125 /*----------------------------------------------------------*/
1127 // if (sig->ret->byref || string_ctor) {
1128 // sz->code_size += 8;
1129 // add_general (&gr, sz, cinfo->args+nParm, TRUE);
1130 // cinfo->args[nParm].size = sizeof(gpointer);
1134 simpletype = sig->ret->type;
1136 switch (simpletype) {
1137 case MONO_TYPE_BOOLEAN:
1142 case MONO_TYPE_CHAR:
1147 case MONO_TYPE_CLASS:
1148 case MONO_TYPE_OBJECT:
1149 case MONO_TYPE_SZARRAY:
1150 case MONO_TYPE_ARRAY:
1152 case MONO_TYPE_STRING:
1153 cinfo->ret.reg = s390_r2;
1158 cinfo->ret.reg = s390_f0;
1163 cinfo->ret.reg = s390_r2;
1166 case MONO_TYPE_VALUETYPE:
1167 if (sig->ret->data.klass->enumtype) {
1168 simpletype = sig->ret->data.klass->enum_basetype->type;
1172 size = mono_class_native_size (sig->ret->data.klass, &align);
1174 size = mono_class_value_size (sig->ret->data.klass, &align);
1175 cinfo->ret.reg = s390_r2;
1176 cinfo->struct_ret = 1;
1177 cinfo->ret.size = size;
1178 cinfo->ret.vtsize = size;
1179 cinfo->ret.offset = sz->stack_size;
1180 sz->stack_size += S390_ALIGN(size, align);
1183 case MONO_TYPE_TYPEDBYREF:
1184 case MONO_TYPE_VOID:
1187 g_error ("Can't handle as return value 0x%x", sig->ret->type);
1192 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1193 cinfo->args[nParm].size = sizeof(gpointer);
1197 /*----------------------------------------------------------*/
1198 /* We determine the size of the parameter code and stack */
1199 /* requirements by checking the types and sizes of the */
1201 /*----------------------------------------------------------*/
1203 for (i = 0; i < sig->param_count; ++i) {
1204 if (sig->params [i]->byref) {
1205 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1206 cinfo->args[nParm].size = sizeof(gpointer);
1210 simpletype = sig->params [i]->type;
1212 switch (simpletype) {
1213 case MONO_TYPE_BOOLEAN:
1216 cinfo->args[nParm].size = sizeof(char);
1217 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1222 case MONO_TYPE_CHAR:
1223 cinfo->args[nParm].size = sizeof(short);
1224 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1229 cinfo->args[nParm].size = sizeof(int);
1230 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1236 case MONO_TYPE_CLASS:
1237 case MONO_TYPE_OBJECT:
1238 case MONO_TYPE_STRING:
1239 case MONO_TYPE_SZARRAY:
1240 case MONO_TYPE_ARRAY:
1241 cinfo->args[nParm].size = sizeof(gpointer);
1242 add_general (&gr, sz, cinfo->args+nParm, TRUE);
1245 case MONO_TYPE_VALUETYPE:
1246 if (sig->params [i]->data.klass->enumtype) {
1247 simpletype = sig->params [i]->data.klass->enum_basetype->type;
1248 goto enum_calc_size;
1251 size = mono_class_native_size (sig->params [i]->data.klass, &align);
1253 size = mono_class_value_size (sig->params [i]->data.klass, &align);
1254 nWords = (size + sizeof(gpointer) - 1) /
1257 cinfo->args[nParm].vtsize = 0;
1258 cinfo->args[nParm].size = 0;
1259 cinfo->args[nParm].offparm = sz->local_size;
1262 /*----------------------------------*/
1263 /* On S/390, structures of size 1, */
1264 /* 2, 4, and 8 bytes are passed in */
1265 /* (a) register(s). */
1266 /*----------------------------------*/
1271 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1272 cinfo->args[nParm].size = size;
1273 cinfo->args[nParm].regtype = RegTypeStructByVal;
1275 sz->local_size += sizeof(long);
1278 add_general(&gr, sz, cinfo->args+nParm, FALSE);
1279 cinfo->args[nParm].size = sizeof(long long);
1280 cinfo->args[nParm].regtype = RegTypeStructByVal;
1282 sz->local_size += sizeof(long);
1285 add_general(&gr, sz, cinfo->args+nParm, TRUE);
1286 cinfo->args[nParm].size = sizeof(int);
1287 cinfo->args[nParm].regtype = RegTypeStructByAddr;
1288 cinfo->args[nParm].vtsize = size;
1289 sz->code_size += 40;
1290 sz->local_size += size;
1291 if (cinfo->args[nParm].reg == STK_BASE)
1292 sz->local_size += sizeof(gpointer);
1298 cinfo->args[nParm].size = sizeof(long long);
1299 add_general (&gr, sz, cinfo->args+nParm, FALSE);
1303 cinfo->args[nParm].size = sizeof(float);
1304 if (fr <= S390_LAST_FPARG_REG) {
1305 cinfo->args[nParm].regtype = RegTypeFP;
1306 cinfo->args[nParm].reg = fr;
1311 cinfo->args[nParm].offset = sz->stack_size;
1312 cinfo->args[nParm].reg = STK_BASE;
1313 cinfo->args[nParm].regtype = RegTypeBase;
1315 sz->stack_size += sizeof(float);
1320 cinfo->args[nParm].size = sizeof(double);
1321 if (fr <= S390_LAST_FPARG_REG) {
1322 cinfo->args[nParm].regtype = RegTypeFP;
1323 cinfo->args[nParm].reg = fr;
1327 cinfo->args[nParm].offset = sz->stack_size;
1328 cinfo->args[nParm].reg = STK_BASE;
1329 cinfo->args[nParm].regtype = RegTypeBase;
1331 sz->stack_size += sizeof(double);
1336 g_error ("Can't trampoline 0x%x", sig->params [i]->type);
1340 cinfo->stack_usage = S390_ALIGN(sz->stack_size+sz->local_size,
1341 S390_STACK_ALIGNMENT);
1345 /*========================= End of Function ========================*/
1347 /*------------------------------------------------------------------*/
1349 /* Name - mono_arch_allocate_vars */
1351 /* Function - Set var information according to the calling */
1352 /* convention for S/390. The local var stuff should */
1353 /* most likely be split in another method. */
1355 /* Parameter - @m - Compile unit. */
1357 /*------------------------------------------------------------------*/
1360 mono_arch_allocate_vars (MonoCompile *m)
1362 MonoMethodSignature *sig;
1363 MonoMethodHeader *header;
1367 int iParm, iVar, offset, size, align, curinst;
1368 int frame_reg = STK_BASE;
1371 header = mono_method_get_header (m->method);
1373 /*---------------------------------------------------------*/
1374 /* We use the frame register also for any method that has */
1375 /* filter clauses. This way, when the handlers are called, */
1376 /* the code will reference local variables using the frame */
1377 /* reg instead of the stack pointer: if we had to restore */
1378 /* the stack pointer, we'd corrupt the method frames that */
1379 /* are already on the stack (since filters get called */
1380 /* before stack unwinding happens) when the filter code */
1381 /* would call any method. */
1382 /*---------------------------------------------------------*/
1383 if ((m->flags & MONO_CFG_HAS_ALLOCA) || header->num_clauses)
1384 frame_reg = s390_r11;
1386 m->frame_reg = frame_reg;
1388 if (frame_reg != STK_BASE)
1389 m->used_int_regs |= 1 << frame_reg;
1391 sig = m->method->signature;
1393 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1395 if (cinfo->struct_ret) {
1396 m->ret->opcode = OP_REGVAR;
1397 m->ret->inst_c0 = s390_r2;
1399 /* FIXME: handle long and FP values */
1400 switch (sig->ret->type) {
1401 case MONO_TYPE_VOID:
1404 m->ret->opcode = OP_REGVAR;
1405 m->ret->dreg = s390_r2;
1410 /*--------------------------------------------------------------*/
1411 /* local vars are at a positive offset from the stack pointer */
1413 /* also note that if the function uses alloca, we use s390_r11 */
1414 /* to point at the local variables. */
1415 /* add parameter area size for called functions */
1416 /*--------------------------------------------------------------*/
1417 offset = (m->param_area + S390_MINIMAL_STACK_SIZE);
1419 if (cinfo->struct_ret) {
1421 offset = S390_ALIGN(offset, sizeof(gpointer));
1422 inst->inst_offset = offset;
1423 inst->opcode = OP_REGOFFSET;
1424 inst->inst_basereg = frame_reg;
1425 offset += sizeof(gpointer);
1429 inst = m->varinfo [0];
1430 if (inst->opcode != OP_REGVAR) {
1431 inst->opcode = OP_REGOFFSET;
1432 inst->inst_basereg = frame_reg;
1433 offset = S390_ALIGN(offset, sizeof(gpointer));
1434 inst->inst_offset = offset;
1435 offset += sizeof (gpointer);
1442 eArg = sig->param_count + sArg;
1444 for (iParm = sArg; iParm < eArg; ++iParm) {
1445 inst = m->varinfo [curinst];
1446 if (inst->opcode != OP_REGVAR) {
1447 switch (cinfo->args[iParm].regtype) {
1448 case RegTypeStructByAddr :
1449 inst->opcode = OP_S390_LOADARG;
1450 inst->inst_basereg = frame_reg;
1451 size = abs(cinfo->args[iParm].vtsize);
1452 offset = S390_ALIGN(offset, size);
1453 inst->inst_offset = offset;
1455 case RegTypeStructByVal :
1456 inst->opcode = OP_S390_ARGPTR;
1457 inst->inst_basereg = frame_reg;
1458 size = cinfo->args[iParm].size;
1459 offset = S390_ALIGN(offset, size);
1460 inst->inst_offset = offset;
1463 if (cinfo->args[iParm].reg != STK_BASE) {
1464 inst->opcode = OP_REGOFFSET;
1465 inst->inst_basereg = frame_reg;
1466 size = (cinfo->args[iParm].size < 8
1468 : sizeof(long long));
1469 offset = S390_ALIGN(offset, size);
1470 inst->inst_offset = offset;
1472 inst->opcode = OP_S390_STKARG;
1473 inst->inst_basereg = frame_reg;
1474 size = (cinfo->args[iParm].size < 4
1475 ? 4 - cinfo->args[iParm].size
1477 inst->inst_offset = cinfo->args[iParm].offset +
1480 size = sizeof(long);
1488 curinst = m->locals_start;
1489 for (iVar = curinst; iVar < m->num_varinfo; ++iVar) {
1490 inst = m->varinfo [iVar];
1491 if (inst->opcode == OP_REGVAR)
1494 /*--------------------------------------------------*/
1495 /* inst->unused indicates native sized value types, */
1496 /* this is used by the pinvoke wrappers when they */
1497 /* call functions returning structure */
1498 /*--------------------------------------------------*/
1499 if (inst->unused && MONO_TYPE_ISSTRUCT (inst->inst_vtype))
1500 size = mono_class_native_size (inst->inst_vtype->data.klass, &align);
1502 size = mono_type_size (inst->inst_vtype, &align);
1504 offset = S390_ALIGN(offset, align);
1505 inst->inst_offset = offset;
1506 inst->opcode = OP_REGOFFSET;
1507 inst->inst_basereg = frame_reg;
1509 //DEBUG (g_print("allocating local %d to %d\n", iVar, inst->inst_offset));
1512 /*------------------------------------------------------*/
1513 /* Allow space for the trace method stack area if needed*/
1514 /*------------------------------------------------------*/
1515 if (mono_jit_trace_calls != NULL && mono_trace_eval (m))
1516 offset += S390_TRACE_STACK_SIZE;
1518 /*------------------------------------------------------*/
1519 /* Reserve space to save LMF and caller saved registers */
1520 /*------------------------------------------------------*/
1521 if (m->method->save_lmf)
1522 offset += sizeof (MonoLMF);
1524 /*------------------------------------------------------*/
1525 /* align the offset */
1526 /*------------------------------------------------------*/
1527 m->stack_offset = S390_ALIGN(offset, S390_STACK_ALIGNMENT);
1531 /*========================= End of Function ========================*/
1533 /*------------------------------------------------------------------*/
1535 /* Name - mono_arch_call_opcode */
1537 /* Function - Take the arguments and generate the arch-specific */
1538 /* instructions to properly call the function. This */
1539 /* includes pushing, moving argments to the correct */
1542 /* Note - FIXME: We need an alignment solution for */
1543 /* enter_method and mono_arch_call_opcode, currently */
1544 /* alignment in mono_arch_call_opcode is computed */
1545 /* without arch_get_argument_info. */
1547 /*------------------------------------------------------------------*/
1550 mono_arch_call_opcode (MonoCompile *cfg, MonoBasicBlock* bb,
1551 MonoCallInst *call, int is_virtual) {
1553 MonoMethodSignature *sig;
1554 int i, n, lParamArea;
1559 sig = call->signature;
1560 n = sig->param_count + sig->hasthis;
1561 DEBUG (g_print ("Call requires: %d parameters\n",n));
1563 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
1565 call->stack_usage = cinfo->stack_usage;
1566 lParamArea = cinfo->stack_usage - S390_MINIMAL_STACK_SIZE;
1567 cfg->param_area = MAX (cfg->param_area, lParamArea);
1568 cfg->flags |= MONO_CFG_HAS_CALLS;
1570 if (cinfo->struct_ret)
1571 call->used_iregs |= 1 << cinfo->struct_ret;
1573 for (i = 0; i < n; ++i) {
1574 ainfo = cinfo->args + i;
1575 DEBUG (g_print ("Parameter %d - Register: %d Type: %d\n",
1576 i+1,ainfo->reg,ainfo->regtype));
1577 if (is_virtual && i == 0) {
1578 /* the argument will be attached to the call instrucion */
1579 in = call->args [i];
1580 call->used_iregs |= 1 << ainfo->reg;
1582 MONO_INST_NEW (cfg, arg, OP_OUTARG);
1583 in = call->args [i];
1584 arg->cil_code = in->cil_code;
1585 arg->inst_left = in;
1586 arg->type = in->type;
1587 /* prepend, we'll need to reverse them later */
1588 arg->next = call->out_args;
1589 call->out_args = arg;
1590 if (ainfo->regtype == RegTypeGeneral) {
1591 arg->unused = ainfo->reg;
1592 call->used_iregs |= 1 << ainfo->reg;
1593 if (arg->type == STACK_I8)
1594 call->used_iregs |= 1 << (ainfo->reg + 1);
1595 } else if (ainfo->regtype == RegTypeStructByAddr) {
1596 call->used_iregs |= 1 << ainfo->reg;
1597 arg->sreg1 = ainfo->reg;
1598 arg->opcode = OP_OUTARG_VT;
1599 arg->unused = -ainfo->vtsize;
1600 arg->inst_imm = ainfo->offset;
1601 arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
1602 } else if (ainfo->regtype == RegTypeStructByVal) {
1603 if (ainfo->reg != STK_BASE) {
1604 switch (ainfo->size) {
1609 call->used_iregs |= 1 << ainfo->reg;
1612 call->used_iregs |= 1 << ainfo->reg;
1613 call->used_iregs |= 1 << (ainfo->reg+1);
1616 call->used_iregs |= 1 << ainfo->reg;
1619 arg->sreg1 = ainfo->reg;
1620 arg->opcode = OP_OUTARG_VT;
1621 arg->unused = ainfo->size;
1622 arg->inst_imm = ainfo->offset;
1623 arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
1624 } else if (ainfo->regtype == RegTypeBase) {
1625 arg->opcode = OP_OUTARG;
1626 arg->unused = ainfo->reg | (ainfo->size << 8);
1627 arg->inst_imm = ainfo->offset;
1628 call->used_fregs |= 1 << ainfo->reg;
1629 } else if (ainfo->regtype == RegTypeFP) {
1630 arg->unused = ainfo->reg;
1631 call->used_fregs |= 1 << ainfo->reg;
1632 if (ainfo->size == 4) {
1634 arg->opcode = OP_OUTARG_R4;
1635 MONO_INST_NEW (cfg, conv, OP_FCONV_TO_R4);
1636 conv->inst_left = arg->inst_left;
1637 arg->inst_left = conv;
1640 arg->opcode = OP_OUTARG_R8;
1642 g_assert_not_reached ();
1647 * Reverse the call->out_args list.
1650 MonoInst *prev = NULL, *list = call->out_args, *next;
1657 call->out_args = prev;
1664 /*========================= End of Function ========================*/
1666 /*------------------------------------------------------------------*/
1668 /* Name - mono_arch_instrument_mem_needs */
1670 /* Function - Allow tracing to work with this interface (with */
1671 /* an optional argument). */
1673 /*------------------------------------------------------------------*/
1676 mono_arch_instrument_mem_needs (MonoMethod *method, int *stack, int *code)
1678 /* no stack room needed now (may be needed for FASTCALL-trace support) */
1680 /* split prolog-epilog requirements? */
1681 *code = 50; /* max bytes needed: check this number */
1684 /*========================= End of Function ========================*/
1686 /*------------------------------------------------------------------*/
1688 /* Name - mono_arch_instrument_prolog */
1690 /* Function - Create an "instrumented" prolog. */
1692 /*------------------------------------------------------------------*/
1695 mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
1696 gboolean enable_arguments)
1702 parmOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
1703 if (cfg->method->save_lmf)
1704 parmOffset -= sizeof(MonoLMF);
1705 fpOffset = parmOffset + (5*sizeof(gint32));
1707 s390_stm (code, s390_r2, s390_r6, STK_BASE, parmOffset);
1708 s390_std (code, s390_f0, 0, STK_BASE, fpOffset);
1709 s390_std (code, s390_f1, 0, STK_BASE, fpOffset+sizeof(gdouble));
1710 s390_std (code, s390_f2, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
1711 s390_basr (code, s390_r13, 0);
1713 s390_word (code, cfg->method);
1714 s390_word (code, func);
1715 s390_l (code, s390_r2, 0, s390_r13, 4);
1716 s390_la (code, s390_r3, 0, STK_BASE, parmOffset);
1717 s390_lr (code, s390_r4, STK_BASE);
1718 s390_ahi (code, s390_r4, cfg->stack_usage);
1719 s390_l (code, s390_r1, 0, s390_r13, 8);
1720 s390_basr (code, s390_r14, s390_r1);
1721 s390_ld (code, s390_f2, 0, STK_BASE, fpOffset+2*sizeof(gdouble));
1722 s390_ld (code, s390_f1, 0, STK_BASE, fpOffset+sizeof(gdouble));
1723 s390_ld (code, s390_f0, 0, STK_BASE, fpOffset);
1724 s390_lm (code, s390_r2, s390_r6, STK_BASE, parmOffset);
1729 /*========================= End of Function ========================*/
1731 /*------------------------------------------------------------------*/
1733 /* Name - mono_arch_instrument_epilog */
1735 /* Function - Create an epilog that will handle the returned */
1736 /* values used in instrumentation. */
1738 /*------------------------------------------------------------------*/
1741 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
1744 int save_mode = SAVE_NONE,
1746 MonoMethod *method = cfg->method;
1747 int rtype = method->signature->ret->type;
1749 saveOffset = cfg->stack_usage - S390_TRACE_STACK_SIZE;
1750 if (method->save_lmf)
1751 saveOffset -= sizeof(MonoLMF);
1755 case MONO_TYPE_VOID:
1756 /* special case string .ctor icall */
1757 if (strcmp (".ctor", method->name) && method->klass == mono_defaults.string_class)
1758 save_mode = SAVE_ONE;
1760 save_mode = SAVE_NONE;
1764 save_mode = SAVE_TWO;
1768 save_mode = SAVE_FP;
1770 case MONO_TYPE_VALUETYPE:
1771 if (method->signature->ret->data.klass->enumtype) {
1772 rtype = method->signature->ret->data.klass->enum_basetype->type;
1775 save_mode = SAVE_STRUCT;
1778 save_mode = SAVE_ONE;
1782 switch (save_mode) {
1784 s390_stm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
1785 if (enable_arguments) {
1786 s390_lr (code, s390_r4, s390_r3);
1787 s390_lr (code, s390_r3, s390_r2);
1791 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1792 if (enable_arguments) {
1793 s390_lr (code, s390_r3, s390_r2);
1797 s390_std (code, s390_f0, 0, cfg->frame_reg, saveOffset);
1798 if (enable_arguments) {
1799 /* FIXME: what reg? */
1800 s390_ldr (code, s390_f2, s390_f0);
1801 s390_lm (code, s390_r3, s390_r4, cfg->frame_reg, saveOffset);
1805 s390_st (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1806 if (enable_arguments) {
1807 s390_l (code, s390_r3, 0, cfg->frame_reg,
1808 S390_MINIMAL_STACK_SIZE+cfg->param_area);
1816 s390_basr (code, s390_r13, 0);
1818 s390_word (code, cfg->method);
1819 s390_word (code, func);
1820 s390_l (code, s390_r2, 0, s390_r13, 4);
1821 s390_l (code, s390_r1, 0, s390_r13, 8);
1822 s390_basr (code, s390_r14, s390_r1);
1824 switch (save_mode) {
1826 s390_lm (code, s390_r2, s390_r3, cfg->frame_reg, saveOffset);
1829 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1832 s390_ld (code, s390_f0, 0, cfg->frame_reg, saveOffset);
1835 s390_l (code, s390_r2, 0, cfg->frame_reg, saveOffset);
1845 /*========================= End of Function ========================*/
1847 /*------------------------------------------------------------------*/
1849 /* Name - peephole_pass */
1851 /* Function - Form a peephole pass at the code looking for */
1852 /* simple optimizations. */
1854 /*------------------------------------------------------------------*/
1857 peephole_pass (MonoCompile *cfg, MonoBasicBlock *bb)
1859 MonoInst *ins, *last_ins = NULL;
1864 switch (ins->opcode) {
1866 /* remove unnecessary multiplication with 1 */
1867 if (ins->inst_imm == 1) {
1868 if (ins->dreg != ins->sreg1) {
1869 ins->opcode = OP_MOVE;
1871 last_ins->next = ins->next;
1877 case OP_LOAD_MEMBASE:
1878 case OP_LOADI4_MEMBASE:
1880 * OP_STORE_MEMBASE_REG reg, offset(basereg)
1881 * OP_LOAD_MEMBASE offset(basereg), reg
1883 if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_REG
1884 || last_ins->opcode == OP_STORE_MEMBASE_REG) &&
1885 ins->inst_basereg == last_ins->inst_destbasereg &&
1886 ins->inst_offset == last_ins->inst_offset) {
1887 if (ins->dreg == last_ins->sreg1) {
1888 last_ins->next = ins->next;
1892 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
1893 ins->opcode = OP_MOVE;
1894 ins->sreg1 = last_ins->sreg1;
1898 * Note: reg1 must be different from the basereg in the second load
1899 * OP_LOAD_MEMBASE offset(basereg), reg1
1900 * OP_LOAD_MEMBASE offset(basereg), reg2
1902 * OP_LOAD_MEMBASE offset(basereg), reg1
1903 * OP_MOVE reg1, reg2
1905 } if (last_ins && (last_ins->opcode == OP_LOADI4_MEMBASE
1906 || last_ins->opcode == OP_LOAD_MEMBASE) &&
1907 ins->inst_basereg != last_ins->dreg &&
1908 ins->inst_basereg == last_ins->inst_basereg &&
1909 ins->inst_offset == last_ins->inst_offset) {
1911 if (ins->dreg == last_ins->dreg) {
1912 last_ins->next = ins->next;
1916 ins->opcode = OP_MOVE;
1917 ins->sreg1 = last_ins->dreg;
1920 //g_assert_not_reached ();
1924 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
1925 * OP_LOAD_MEMBASE offset(basereg), reg
1927 * OP_STORE_MEMBASE_IMM imm, offset(basereg)
1928 * OP_ICONST reg, imm
1930 } else if (last_ins && (last_ins->opcode == OP_STOREI4_MEMBASE_IMM
1931 || last_ins->opcode == OP_STORE_MEMBASE_IMM) &&
1932 ins->inst_basereg == last_ins->inst_destbasereg &&
1933 ins->inst_offset == last_ins->inst_offset) {
1934 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
1935 ins->opcode = OP_ICONST;
1936 ins->inst_c0 = last_ins->inst_imm;
1937 g_assert_not_reached (); // check this rule
1941 case OP_LOADU1_MEMBASE:
1942 case OP_LOADI1_MEMBASE:
1943 if (last_ins && (last_ins->opcode == OP_STOREI1_MEMBASE_REG) &&
1944 ins->inst_basereg == last_ins->inst_destbasereg &&
1945 ins->inst_offset == last_ins->inst_offset) {
1946 if (ins->dreg == last_ins->sreg1) {
1947 last_ins->next = ins->next;
1951 //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
1952 ins->opcode = OP_MOVE;
1953 ins->sreg1 = last_ins->sreg1;
1957 case OP_LOADU2_MEMBASE:
1958 case OP_LOADI2_MEMBASE:
1959 if (last_ins && (last_ins->opcode == OP_STOREI2_MEMBASE_REG) &&
1960 ins->inst_basereg == last_ins->inst_destbasereg &&
1961 ins->inst_offset == last_ins->inst_offset) {
1962 if (ins->dreg == last_ins->sreg1) {
1963 last_ins->next = ins->next;
1967 ins->opcode = OP_MOVE;
1968 ins->sreg1 = last_ins->sreg1;
1978 if (ins->dreg == ins->sreg1) {
1980 last_ins->next = ins->next;
1985 * OP_MOVE sreg, dreg
1986 * OP_MOVE dreg, sreg
1988 if (last_ins && last_ins->opcode == OP_MOVE &&
1989 ins->sreg1 == last_ins->dreg &&
1990 ins->dreg == last_ins->sreg1) {
1991 last_ins->next = ins->next;
2000 bb->last_ins = last_ins;
2003 /*========================= End of Function ========================*/
2005 /*------------------------------------------------------------------*/
2007 /* Name - mono_spillvar_offset */
2009 /* Function - Returns the offset used by spillvar. It allocates */
2010 /* a new spill variable if necessary. */
2012 /*------------------------------------------------------------------*/
2015 mono_spillvar_offset (MonoCompile *cfg, int spillvar)
2017 MonoSpillInfo **si, *info;
2020 si = &cfg->spill_info;
2022 while (i <= spillvar) {
2025 *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
2027 info->offset = cfg->stack_offset;
2028 cfg->stack_offset += sizeof (gpointer);
2032 return (*si)->offset;
2038 g_assert_not_reached ();
2042 /*========================= End of Function ========================*/
2044 /*------------------------------------------------------------------*/
2046 /* Name - mono_spillvar_offset_float */
2050 /*------------------------------------------------------------------*/
2053 mono_spillvar_offset_float (MonoCompile *cfg, int spillvar)
2055 MonoSpillInfo **si, *info;
2058 si = &cfg->spill_info_float;
2060 while (i <= spillvar) {
2063 *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
2065 cfg->stack_offset = S390_ALIGN(cfg->stack_offset, S390_STACK_ALIGNMENT);
2066 info->offset = cfg->stack_offset;
2067 cfg->stack_offset += sizeof (double);
2071 return (*si)->offset;
2077 g_assert_not_reached ();
2081 /*========================= End of Function ========================*/
2083 /*------------------------------------------------------------------*/
2085 /* Name - print_ins */
2087 /* Function - Decode and print the instruction for tracing. */
2089 /*------------------------------------------------------------------*/
2092 print_ins (int i, MonoInst *ins)
2094 const char *spec = ins_spec [ins->opcode];
2095 g_print ("\t%-2d %s", i, mono_inst_name (ins->opcode));
2096 if (spec [MONO_INST_DEST]) {
2097 if (ins->dreg >= MONO_MAX_IREGS)
2098 g_print (" R%d <-", ins->dreg);
2100 g_print (" %s <-", mono_arch_regname (ins->dreg));
2102 if (spec [MONO_INST_SRC1]) {
2103 if (ins->sreg1 >= MONO_MAX_IREGS)
2104 g_print (" R%d", ins->sreg1);
2106 g_print (" %s", mono_arch_regname (ins->sreg1));
2108 if (spec [MONO_INST_SRC2]) {
2109 if (ins->sreg2 >= MONO_MAX_IREGS)
2110 g_print (" R%d", ins->sreg2);
2112 g_print (" %s", mono_arch_regname (ins->sreg2));
2114 if (spec [MONO_INST_CLOB])
2115 g_print (" clobbers: %c", spec [MONO_INST_CLOB]);
2119 /*========================= End of Function ========================*/
2121 /*------------------------------------------------------------------*/
2123 /* Name - print_regtrack. */
2127 /*------------------------------------------------------------------*/
2130 print_regtrack (RegTrack *t, int num)
2136 for (i = 0; i < num; ++i) {
2139 if (i >= MONO_MAX_IREGS) {
2140 g_snprintf (buf, sizeof(buf), "R%d", i);
2143 r = mono_arch_regname (i);
2144 g_print ("liveness: %s [%d - %d]\n", r, t [i].born_in, t[i].last_use);
2148 /*========================= End of Function ========================*/
2150 /*------------------------------------------------------------------*/
2152 /* Name - inst_list_prepend */
2154 /* Function - Prepend an instruction to the list. */
2156 /*------------------------------------------------------------------*/
2158 static inline InstList*
2159 inst_list_prepend (MonoMemPool *pool, InstList *list, MonoInst *data)
2161 InstList *item = mono_mempool_alloc (pool, sizeof (InstList));
2170 /*========================= End of Function ========================*/
2172 /*------------------------------------------------------------------*/
2174 /* Name - get_register_force_spilling */
2176 /* Function - Force the spilling of the variable in the */
2177 /* symbolic register 'reg'. */
2179 /*------------------------------------------------------------------*/
2182 get_register_force_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, int reg)
2187 sel = cfg->rs->iassign [reg];
2189 spill = ++cfg->spill_count;
2190 cfg->rs->iassign [i] = -spill - 1;
2191 mono_regstate_free_int (cfg->rs, sel);
2192 /*----------------------------------------------------------*/
2193 /* we need to create a spill var and insert a load to sel */
2194 /* after the current instruction */
2195 /*----------------------------------------------------------*/
2196 MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
2198 load->inst_basereg = cfg->frame_reg;
2199 load->inst_offset = mono_spillvar_offset (cfg, spill);
2201 while (ins->next != item->prev->data)
2204 load->next = ins->next;
2206 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n",
2207 spill, load->inst_offset, i, mono_arch_regname (sel)));
2208 i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
2209 g_assert (i == sel);
2214 /*========================= End of Function ========================*/
2216 /*------------------------------------------------------------------*/
2218 /* Name - get_register_spilling */
2222 /*------------------------------------------------------------------*/
2225 get_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
2230 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));
2231 /* exclude the registers in the current instruction */
2232 if (reg != ins->sreg1 &&
2233 (reg_is_freeable (ins->sreg1) ||
2234 (ins->sreg1 >= MONO_MAX_IREGS &&
2235 cfg->rs->iassign [ins->sreg1] >= 0))) {
2236 if (ins->sreg1 >= MONO_MAX_IREGS)
2237 regmask &= ~ (1 << cfg->rs->iassign [ins->sreg1]);
2239 regmask &= ~ (1 << ins->sreg1);
2240 DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
2242 if (reg != ins->sreg2 &&
2243 (reg_is_freeable (ins->sreg2) ||
2244 (ins->sreg2 >= MONO_MAX_IREGS &&
2245 cfg->rs->iassign [ins->sreg2] >= 0))) {
2246 if (ins->sreg2 >= MONO_MAX_IREGS)
2247 regmask &= ~ (1 << cfg->rs->iassign [ins->sreg2]);
2249 regmask &= ~ (1 << ins->sreg2);
2250 DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
2252 if (reg != ins->dreg && reg_is_freeable (ins->dreg)) {
2253 regmask &= ~ (1 << ins->dreg);
2254 DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
2257 DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
2258 g_assert (regmask); /* need at least a register we can free */
2260 /* we should track prev_use and spill the register that's farther */
2261 for (i = 0; i < MONO_MAX_IREGS; ++i) {
2262 if (regmask & (1 << i)) {
2264 DEBUG (g_print ("selected register %s has assignment %d\n", mono_arch_regname (sel), cfg->rs->iassign [sel]));
2268 i = cfg->rs->isymbolic [sel];
2269 spill = ++cfg->spill_count;
2270 cfg->rs->iassign [i] = -spill - 1;
2271 mono_regstate_free_int (cfg->rs, sel);
2272 /* we need to create a spill var and insert a load to sel after the current instruction */
2273 MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
2275 load->inst_basereg = cfg->frame_reg;
2276 load->inst_offset = mono_spillvar_offset (cfg, spill);
2278 while (ins->next != item->prev->data)
2281 load->next = ins->next;
2283 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
2284 i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
2285 g_assert (i == sel);
2290 /*========================= End of Function ========================*/
2292 /*------------------------------------------------------------------*/
2294 /* Name - get_float_register_spilling */
2298 /*------------------------------------------------------------------*/
2301 get_float_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
2306 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));
2307 /* exclude the registers in the current instruction */
2308 if (reg != ins->sreg1 &&
2309 (freg_is_freeable (ins->sreg1) ||
2310 (ins->sreg1 >= MONO_MAX_FREGS &&
2311 cfg->rs->fassign [ins->sreg1] >= 0))) {
2312 if (ins->sreg1 >= MONO_MAX_FREGS)
2313 regmask &= ~ (1 << cfg->rs->fassign [ins->sreg1]);
2315 regmask &= ~ (1 << ins->sreg1);
2316 DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
2318 if (reg != ins->sreg2 &&
2319 (freg_is_freeable (ins->sreg2) ||
2320 (ins->sreg2 >= MONO_MAX_FREGS &&
2321 cfg->rs->fassign [ins->sreg2] >= 0))) {
2322 if (ins->sreg2 >= MONO_MAX_FREGS)
2323 regmask &= ~ (1 << cfg->rs->fassign [ins->sreg2]);
2325 regmask &= ~ (1 << ins->sreg2);
2326 DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
2328 if (reg != ins->dreg && freg_is_freeable (ins->dreg)) {
2329 regmask &= ~ (1 << ins->dreg);
2330 DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
2333 DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
2334 g_assert (regmask); /* need at least a register we can free */
2336 /* we should track prev_use and spill the register that's farther */
2337 for (i = 0; i < MONO_MAX_FREGS; ++i) {
2338 if (regmask & (1 << i)) {
2340 DEBUG (g_print ("selected register %s has assignment %d\n",
2341 mono_arch_regname (sel), cfg->rs->fassign [sel]));
2345 i = cfg->rs->fsymbolic [sel];
2346 spill = ++cfg->spill_count;
2347 cfg->rs->fassign [i] = -spill - 1;
2348 mono_regstate_free_float(cfg->rs, sel);
2349 /* we need to create a spill var and insert a load to sel after the current instruction */
2350 MONO_INST_NEW (cfg, load, OP_LOADR8_MEMBASE);
2352 load->inst_basereg = cfg->frame_reg;
2353 load->inst_offset = mono_spillvar_offset_float (cfg, spill);
2355 while (ins->next != item->prev->data)
2358 load->next = ins->next;
2360 DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
2361 i = mono_regstate_alloc_float (cfg->rs, 1 << sel);
2362 g_assert (i == sel);
2367 /*========================= End of Function ========================*/
2369 /*------------------------------------------------------------------*/
2371 /* Name - create_copy_ins */
2373 /* Function - Create an instruction to copy from reg to reg. */
2375 /*------------------------------------------------------------------*/
2378 create_copy_ins (MonoCompile *cfg, int dest, int src, MonoInst *ins)
2381 MONO_INST_NEW (cfg, copy, OP_MOVE);
2385 copy->next = ins->next;
2388 DEBUG (g_print ("\tforced copy from %s to %s\n",
2389 mono_arch_regname (src), mono_arch_regname (dest)));
2393 /*========================= End of Function ========================*/
2395 /*------------------------------------------------------------------*/
2397 /* Name - create_copy_ins_float */
2399 /* Function - Create an instruction to copy from float reg to */
2402 /*------------------------------------------------------------------*/
2405 create_copy_ins_float (MonoCompile *cfg, int dest, int src, MonoInst *ins)
2408 MONO_INST_NEW (cfg, copy, OP_FMOVE);
2412 copy->next = ins->next;
2415 DEBUG (g_print ("\tforced copy from %s to %s\n",
2416 mono_arch_regname (src), mono_arch_regname (dest)));
2420 /*========================= End of Function ========================*/
2422 /*------------------------------------------------------------------*/
2424 /* Name - create_spilled_store */
2426 /* Function - Spill register to storage. */
2428 /*------------------------------------------------------------------*/
2431 create_spilled_store (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
2434 MONO_INST_NEW (cfg, store, OP_STORE_MEMBASE_REG);
2436 store->inst_destbasereg = cfg->frame_reg;
2437 store->inst_offset = mono_spillvar_offset (cfg, spill);
2439 store->next = ins->next;
2442 DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
2443 spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
2447 /*========================= End of Function ========================*/
2449 /*------------------------------------------------------------------*/
2451 /* Name - create_spilled_store_float */
2453 /* Function - Spill floating point register to storage. */
2455 /*------------------------------------------------------------------*/
2458 create_spilled_store_float (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
2461 MONO_INST_NEW (cfg, store, OP_STORER8_MEMBASE_REG);
2463 store->inst_destbasereg = cfg->frame_reg;
2464 store->inst_offset = mono_spillvar_offset_float (cfg, spill);
2466 store->next = ins->next;
2469 DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
2470 spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
2474 /*========================= End of Function ========================*/
2476 /*------------------------------------------------------------------*/
2478 /* Name - insert_before_ins */
2480 /* Function - Insert an instruction before another. */
2482 /*------------------------------------------------------------------*/
2485 insert_before_ins (MonoInst *ins, InstList *item, MonoInst* to_insert)
2488 g_assert (item->next);
2489 prev = item->next->data;
2491 while (prev->next != ins)
2493 to_insert->next = ins;
2494 prev->next = to_insert;
2496 * needed otherwise in the next instruction we can add an ins to the
2497 * end and that would get past this instruction.
2499 item->data = to_insert;
2502 /*========================= End of Function ========================*/
2504 /*------------------------------------------------------------------*/
2506 /* Name - alloc_int_reg */
2508 /* Function - Allocate a general register. */
2510 /*------------------------------------------------------------------*/
2513 alloc_int_reg (MonoCompile *cfg, InstList *curinst, MonoInst *ins, int sym_reg, guint32 allow_mask)
2515 int val = cfg->rs->iassign [sym_reg];
2516 DEBUG (g_print ("Allocating a general register for %d (%d) with mask %08x\n",val,sym_reg,allow_mask));
2520 /* the register gets spilled after this inst */
2523 val = mono_regstate_alloc_int (cfg->rs, allow_mask);
2525 val = get_register_spilling (cfg, curinst, ins, allow_mask, sym_reg);
2526 cfg->rs->iassign [sym_reg] = val;
2527 /* add option to store before the instruction for src registers */
2529 create_spilled_store (cfg, spill, val, sym_reg, ins);
2531 DEBUG (g_print ("Allocated %d for %d\n",val,sym_reg));
2532 cfg->rs->isymbolic [val] = sym_reg;
2536 /*========================= End of Function ========================*/
2538 /*------------------------------------------------------------------*/
2540 /* Name - mono_arch_local_regalloc. */
2542 /* Function - We first scan the list of instructions and we */
2543 /* save the liveness information of each register */
2544 /* (when the register is first used, when its value */
2545 /* is set etc.). We also reverse the list of instr- */
2546 /* uctions (in the InstList list) because assigning */
2547 /* registers backwards allows for more tricks to be */
2550 /*------------------------------------------------------------------*/
2553 mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
2556 MonoRegState *rs = cfg->rs;
2558 RegTrack *reginfo, *reginfof;
2559 RegTrack *reginfo1, *reginfo2, *reginfod;
2560 InstList *tmp, *reversed = NULL;
2562 guint32 src1_mask, src2_mask, dest_mask;
2563 guint32 cur_iregs, cur_fregs;
2567 rs->next_vireg = bb->max_ireg;
2568 rs->next_vfreg = bb->max_freg;
2569 mono_regstate_assign (rs);
2570 reginfo = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vireg);
2571 reginfof = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vfreg);
2572 rs->ifree_mask = S390_CALLER_REGS;
2573 rs->ffree_mask = S390_CALLER_FREGS;
2577 DEBUG (g_print ("LOCAL regalloc: basic block: %d\n", bb->block_num));
2578 /* forward pass on the instructions to collect register liveness info */
2580 spec = ins_spec [ins->opcode];
2581 DEBUG (print_ins (i, ins));
2582 if (spec [MONO_INST_CLOB] == 'c') {
2583 MonoCallInst * call = (MonoCallInst*)ins;
2586 if (spec [MONO_INST_SRC1]) {
2587 if (spec [MONO_INST_SRC1] == 'f')
2588 reginfo1 = reginfof;
2591 reginfo1 [ins->sreg1].prev_use = reginfo1 [ins->sreg1].last_use;
2592 reginfo1 [ins->sreg1].last_use = i;
2596 if (spec [MONO_INST_SRC2]) {
2597 if (spec [MONO_INST_SRC2] == 'f')
2598 reginfo2 = reginfof;
2601 reginfo2 [ins->sreg2].prev_use = reginfo2 [ins->sreg2].last_use;
2602 reginfo2 [ins->sreg2].last_use = i;
2606 if (spec [MONO_INST_DEST]) {
2607 if (spec [MONO_INST_DEST] == 'f')
2608 reginfod = reginfof;
2611 if (spec [MONO_INST_DEST] != 'b') /* it's not just a base register */
2612 reginfod [ins->dreg].killed_in = i;
2613 reginfod [ins->dreg].prev_use = reginfod [ins->dreg].last_use;
2614 reginfod [ins->dreg].last_use = i;
2615 if (reginfod [ins->dreg].born_in == 0 || reginfod [ins->dreg].born_in > i)
2616 reginfod [ins->dreg].born_in = i;
2617 if (spec [MONO_INST_DEST] == 'l') {
2618 /* result in eax:edx, the virtual register is allocated sequentially */
2619 reginfod [ins->dreg + 1].prev_use = reginfod [ins->dreg + 1].last_use;
2620 reginfod [ins->dreg + 1].last_use = i;
2621 if (reginfod [ins->dreg + 1].born_in == 0 || reginfod [ins->dreg + 1].born_in > i)
2622 reginfod [ins->dreg + 1].born_in = i;
2627 reversed = inst_list_prepend (cfg->mempool, reversed, ins);
2632 cur_iregs = S390_CALLER_REGS;
2633 cur_fregs = S390_CALLER_FREGS;
2635 DEBUG (print_regtrack (reginfo, rs->next_vireg));
2636 DEBUG (print_regtrack (reginfof, rs->next_vfreg));
2639 int prev_dreg, prev_sreg1, prev_sreg2;
2642 spec = ins_spec [ins->opcode];
2643 DEBUG (g_print ("processing:"));
2644 DEBUG (print_ins (i, ins));
2645 /* make the register available for allocation: FIXME add fp reg */
2646 if (ins->opcode == OP_SETREG || ins->opcode == OP_SETREGIMM) {
2647 cur_iregs |= 1 << ins->dreg;
2648 DEBUG (g_print ("adding %d to cur_iregs\n", ins->dreg));
2649 } else if (ins->opcode == OP_SETFREG) {
2650 cur_fregs |= 1 << ins->dreg;
2651 DEBUG (g_print ("adding %d to cur_fregs\n", ins->dreg));
2652 } else if (spec [MONO_INST_CLOB] == 'c') {
2653 MonoCallInst *cinst = (MonoCallInst*)ins;
2654 DEBUG (g_print ("excluding regs 0x%x from cur_iregs (0x%x)\n",
2655 cinst->used_iregs, cur_iregs));
2656 DEBUG (g_print ("excluding fpregs 0x%x from cur_fregs (0x%x)\n",
2657 cinst->used_fregs, cur_fregs));
2658 cur_iregs &= ~cinst->used_iregs;
2659 cur_fregs &= ~cinst->used_fregs;
2660 DEBUG (g_print ("available cur_iregs: 0x%x\n", cur_iregs));
2661 DEBUG (g_print ("available cur_fregs: 0x%x\n", cur_fregs));
2662 /*------------------------------------------------------------*/
2663 /* registers used by the calling convention are excluded from */
2664 /* allocation: they will be selectively enabled when they are */
2665 /* assigned by the special SETREG opcodes. */
2666 /*------------------------------------------------------------*/
2668 dest_mask = src1_mask = src2_mask = cur_iregs;
2669 /*------------------------------------------------------*/
2670 /* update for use with FP regs... */
2671 /*------------------------------------------------------*/
2672 if (spec [MONO_INST_DEST] == 'f') {
2673 dest_mask = cur_fregs;
2674 if (ins->dreg >= MONO_MAX_FREGS) {
2675 val = rs->fassign [ins->dreg];
2676 prev_dreg = ins->dreg;
2680 /* the register gets spilled after this inst */
2683 val = mono_regstate_alloc_float (rs, dest_mask);
2685 val = get_float_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
2686 rs->fassign [ins->dreg] = val;
2688 create_spilled_store_float (cfg, spill, val, prev_dreg, ins);
2690 DEBUG (g_print ("\tassigned dreg %s to dest R%d\n",
2691 mono_arch_regname (val), ins->dreg));
2692 rs->fsymbolic [val] = prev_dreg;
2694 if (spec [MONO_INST_CLOB] == 'c' && ins->dreg != s390_f0) {
2695 /* this instruction only outputs to s390_f0, need to copy */
2696 create_copy_ins_float (cfg, ins->dreg, s390_f0, ins);
2701 if (freg_is_freeable (ins->dreg) && prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i || !(cur_fregs & (1 << ins->dreg)))) {
2702 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2703 mono_regstate_free_float (rs, ins->dreg);
2705 } else if (ins->dreg >= MONO_MAX_IREGS) {
2706 val = rs->iassign [ins->dreg];
2707 prev_dreg = ins->dreg;
2711 /* the register gets spilled after this inst */
2714 val = mono_regstate_alloc_int (rs, dest_mask);
2716 val = get_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
2717 rs->iassign [ins->dreg] = val;
2719 create_spilled_store (cfg, spill, val, prev_dreg, ins);
2721 DEBUG (g_print ("\tassigned dreg %s to dest R%d (prev: R%d)\n",
2722 mono_arch_regname (val), ins->dreg, prev_dreg));
2723 rs->isymbolic [val] = prev_dreg;
2725 if (spec [MONO_INST_DEST] == 'l') {
2726 int hreg = prev_dreg + 1;
2727 val = rs->iassign [hreg];
2731 /* the register gets spilled after this inst */
2734 val = mono_regstate_alloc_int (rs, dest_mask);
2736 val = get_register_spilling (cfg, tmp, ins, dest_mask, hreg);
2737 rs->iassign [hreg] = val;
2739 create_spilled_store (cfg, spill, val, hreg, ins);
2741 DEBUG (g_print ("\tassigned hreg %s to dest R%d\n", mono_arch_regname (val), hreg));
2742 rs->isymbolic [val] = hreg;
2743 /* FIXME:? ins->dreg = val; */
2744 if (ins->dreg == s390_r3) {
2746 create_copy_ins (cfg, val, s390_r2, ins);
2747 } else if (ins->dreg == s390_r2) {
2748 if (val == s390_r3) {
2750 create_copy_ins (cfg, s390_r3, s390_r0, ins);
2751 create_copy_ins (cfg, s390_r2, s390_r3, ins);
2752 create_copy_ins (cfg, s390_r0, s390_r2, ins);
2754 /* two forced copies */
2755 create_copy_ins (cfg, ins->dreg, s390_r3, ins);
2756 create_copy_ins (cfg, val, s390_r2, ins);
2759 if (val == s390_r2) {
2760 create_copy_ins (cfg, ins->dreg, s390_r2, ins);
2762 /* two forced copies */
2763 create_copy_ins (cfg, val, s390_r2, ins);
2764 create_copy_ins (cfg, ins->dreg, s390_r3, ins);
2767 if (reg_is_freeable (val) && hreg >= 0 && (reginfo [hreg].born_in >= i && !(cur_iregs & (1 << val)))) {
2768 DEBUG (g_print ("\tfreeable %s (R%d)\n", mono_arch_regname (val), hreg));
2769 mono_regstate_free_int (rs, val);
2771 } else if (spec [MONO_INST_DEST] == 'a' && ins->dreg != s390_r2 && spec [MONO_INST_CLOB] != 'd') {
2772 /* this instruction only outputs to s390_r2, need to copy */
2773 create_copy_ins (cfg, ins->dreg, s390_r2, ins);
2778 if (spec [MONO_INST_DEST] == 'f' &&
2779 freg_is_freeable (ins->dreg) &&
2780 prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i)) {
2781 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2782 mono_regstate_free_float (rs, ins->dreg);
2783 } else if (spec [MONO_INST_DEST] != 'f' &&
2784 reg_is_freeable (ins->dreg) &&
2785 prev_dreg >= 0 && (reginfo [prev_dreg].born_in >= i)) {
2786 DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
2787 mono_regstate_free_int (rs, ins->dreg);
2789 if (spec [MONO_INST_SRC1] == 'f') {
2790 src1_mask = cur_fregs;
2791 if (ins->sreg1 >= MONO_MAX_FREGS) {
2792 val = rs->fassign [ins->sreg1];
2793 prev_sreg1 = ins->sreg1;
2797 /* the register gets spilled after this inst */
2800 //g_assert (val == -1); /* source cannot be spilled */
2801 val = mono_regstate_alloc_float (rs, src1_mask);
2803 val = get_float_register_spilling (cfg, tmp, ins, src1_mask, ins->sreg1);
2804 rs->fassign [ins->sreg1] = val;
2805 DEBUG (g_print ("\tassigned sreg1 %s to R%d\n", mono_arch_regname (val), ins->sreg1));
2807 MonoInst *store = create_spilled_store_float (cfg, spill, val, prev_sreg1, NULL);
2808 insert_before_ins (ins, tmp, store);
2811 rs->fsymbolic [val] = prev_sreg1;
2816 } else if (ins->sreg1 >= MONO_MAX_IREGS) {
2817 val = rs->iassign [ins->sreg1];
2818 prev_sreg1 = ins->sreg1;
2822 /* the register gets spilled after this inst */
2825 val = mono_regstate_alloc_int (rs, src1_mask);
2827 val = get_register_spilling (cfg, tmp, ins,
2830 rs->iassign [ins->sreg1] = val;
2831 DEBUG (g_print ("\tassigned sreg1 %s to R%d\n",
2832 mono_arch_regname (val), ins->sreg1));
2835 store = create_spilled_store (cfg, spill, val,
2837 insert_before_ins (ins, tmp, store);
2840 rs->isymbolic [val] = prev_sreg1;
2845 /*----------------------------------------------*/
2846 /* handle clobbering of sreg1 */
2847 /*----------------------------------------------*/
2848 if ((spec [MONO_INST_CLOB] == '1' ||
2849 spec [MONO_INST_CLOB] == 's') &&
2850 ins->dreg != ins->sreg1) {
2852 copy = create_copy_ins (cfg, ins->dreg, ins->sreg1, NULL);
2853 DEBUG (g_print ("\tneed to copy sreg1 %s to dreg %s\n",
2854 mono_arch_regname (ins->sreg1),
2855 mono_arch_regname (ins->dreg)));
2856 if (ins->sreg2 == -1 || spec [MONO_INST_CLOB] == 's') {
2857 /* note: the copy is inserted before the current instruction! */
2858 insert_before_ins (ins, tmp, copy);
2859 /* we set sreg1 to dest as well */
2860 prev_sreg1 = ins->sreg1 = ins->dreg;
2862 /* inserted after the operation */
2863 copy->next = ins->next;
2868 if (spec [MONO_INST_SRC2] == 'f') {
2869 src2_mask = cur_fregs;
2870 if (ins->sreg2 >= MONO_MAX_FREGS) {
2871 val = rs->fassign [ins->sreg2];
2872 prev_sreg2 = ins->sreg2;
2876 /* the register gets spilled after this inst */
2879 val = mono_regstate_alloc_float (rs, src2_mask);
2881 val = get_float_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
2882 rs->fassign [ins->sreg2] = val;
2883 DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
2885 create_spilled_store_float (cfg, spill, val, prev_sreg2, ins);
2887 rs->fsymbolic [val] = prev_sreg2;
2892 } else if (ins->sreg2 >= MONO_MAX_IREGS) {
2893 val = rs->iassign [ins->sreg2];
2894 prev_sreg2 = ins->sreg2;
2898 /* the register gets spilled after this inst */
2901 val = mono_regstate_alloc_int (rs, src2_mask);
2903 val = get_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
2904 rs->iassign [ins->sreg2] = val;
2905 DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
2907 create_spilled_store (cfg, spill, val, prev_sreg2, ins);
2909 rs->isymbolic [val] = prev_sreg2;
2915 if (spec [MONO_INST_CLOB] == 'c') {
2917 guint32 clob_mask = S390_CALLER_REGS;
2918 for (j = 0; j < MONO_MAX_IREGS; ++j) {
2920 if ((clob_mask & s) && !(rs->ifree_mask & s) && j != ins->sreg1) {
2921 //g_warning ("register %s busy at call site\n", mono_arch_regname (j));
2925 /*if (reg_is_freeable (ins->sreg1) && prev_sreg1 >= 0 && reginfo [prev_sreg1].born_in >= i) {
2926 DEBUG (g_print ("freeable %s\n", mono_arch_regname (ins->sreg1)));
2927 mono_regstate_free_int (rs, ins->sreg1);
2929 if (reg_is_freeable (ins->sreg2) && prev_sreg2 >= 0 && reginfo [prev_sreg2].born_in >= i) {
2930 DEBUG (g_print ("freeable %s\n", mono_arch_regname (ins->sreg2)));
2931 mono_regstate_free_int (rs, ins->sreg2);
2934 //DEBUG (print_ins (i, ins));
2939 /*========================= End of Function ========================*/
2941 /*------------------------------------------------------------------*/
2943 /* Name - emit_float_to_int */
2945 /* Function - Create instructions which will convert a floating */
2946 /* point value to integer. */
2948 /*------------------------------------------------------------------*/
2951 emit_float_to_int (MonoCompile *cfg, guchar *code, int dreg, int sreg, int size, gboolean is_signed)
2953 /* sreg is a float, dreg is an integer reg. */
2955 s390_cfdbr (code, dreg, 5, sreg);
2958 s390_lhi (code, s390_r0, 0);
2959 s390_lhi (code, s390_r13, 0xff);
2960 s390_ltr (code, dreg, dreg);
2962 s390_lhi (code, s390_r0, 0x80);
2963 s390_nr (code, dreg, s390_r13);
2964 s390_or (code, dreg, s390_r0);
2968 s390_basr (code, s390_r13, 0);
2970 s390_llong (code, 0x41e0000000000000);
2971 s390_llong (code, 0x41f0000000000000);
2972 s390_ldr (code, s390_f15, sreg);
2973 s390_cdb (code, s390_f15, 0, s390_r13, 0);
2975 s390_sdb (code, s390_f15, 0, s390_r13, 8);
2976 s390_cfdbr (code, dreg, 7, s390_f15);
2978 s390_cfdbr (code, dreg, 5, sreg);
2981 s390_lhi (code, s390_r0, 0xff);
2982 s390_nr (code, dreg, s390_r0);
2985 s390_lhi (code, s390_r0, -1);
2986 s390_srl (code, s390_r0, 0, 16);
2987 s390_nr (code, dreg, s390_r0);
2994 /*========================= End of Function ========================*/
2996 /*------------------------------------------------------------------*/
2998 /* Name - mono_emit_stack_alloc */
3002 /*------------------------------------------------------------------*/
3004 static unsigned char*
3005 mono_emit_stack_alloc (guchar *code, MonoInst* tree)
3010 /*========================= End of Function ========================*/
3012 /*------------------------------------------------------------------*/
3014 /* Name - mono_arch_output_basic_block */
3016 /* Function - Perform the "real" work of emitting instructions */
3017 /* that will do the work of in the basic block. */
3019 /*------------------------------------------------------------------*/
3022 mono_arch_output_basic_block (MonoCompile *cfg, MonoBasicBlock *bb)
3027 guint8 *code = cfg->native_code + cfg->code_len;
3028 MonoInst *last_ins = NULL;
3029 guint last_offset = 0;
3033 if (cfg->opt & MONO_OPT_PEEPHOLE)
3034 peephole_pass (cfg, bb);
3036 /* we don't align basic blocks of loops on s390 */
3038 if (cfg->verbose_level > 2)
3039 g_print ("Basic block %d starting at offset 0x%x\n", bb->block_num, bb->native_offset);
3041 cpos = bb->max_offset;
3043 if (cfg->prof_options & MONO_PROFILE_COVERAGE) {
3044 //MonoCoverageInfo *cov = mono_get_coverage_info (cfg->method);
3045 //g_assert (!mono_compile_aot);
3048 // cov->data [bb->dfn].iloffset = bb->cil_code - cfg->cil_code;
3049 /* this is not thread save, but good enough */
3050 /* fixme: howto handle overflows? */
3051 //x86_inc_mem (code, &cov->data [bb->dfn].count);
3056 offset = code - cfg->native_code;
3058 max_len = ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
3060 if (offset > (cfg->code_size - max_len - 16)) {
3061 cfg->code_size *= 2;
3062 cfg->native_code = g_realloc (cfg->native_code, cfg->code_size);
3063 code = cfg->native_code + offset;
3066 mono_debug_record_line_number (cfg, ins, offset);
3068 switch (ins->opcode) {
3069 case OP_STOREI1_MEMBASE_IMM: {
3070 s390_lhi (code, s390_r14, ins->inst_imm);
3071 if (s390_is_uimm12(ins->inst_offset))
3072 s390_stc (code, s390_r14, 0, ins->inst_destbasereg, ins->inst_offset);
3074 s390_basr (code, s390_r13, 0);
3076 s390_word (code, ins->inst_offset);
3077 s390_l (code, s390_r13, 0, s390_r13, 4);
3078 s390_stc (code, s390_r14, s390_r13, ins->inst_destbasereg, 0);
3082 case OP_STOREI2_MEMBASE_IMM: {
3083 s390_lhi (code, s390_r14, ins->inst_imm);
3084 if (s390_is_uimm12(ins->inst_offset)) {
3085 s390_sth (code, s390_r14, 0, ins->inst_destbasereg, ins->inst_offset);
3087 s390_basr (code, s390_r13, 0);
3089 s390_word (code, ins->inst_offset);
3090 s390_l (code, s390_r13, 0, s390_r13, 4);
3091 s390_sth (code, s390_r14, s390_r13, ins->inst_destbasereg, 0);
3095 case OP_STORE_MEMBASE_IMM:
3096 case OP_STOREI4_MEMBASE_IMM: {
3097 if (s390_is_imm16(ins->inst_imm)) {
3098 s390_lhi (code, s390_r14, ins->inst_imm);
3100 s390_basr (code, s390_r13, 0);
3102 s390_word (code, ins->inst_imm);
3103 s390_l (code, s390_r14, 0, s390_r13, 4);
3105 if (s390_is_uimm12(ins->inst_offset)) {
3106 s390_st (code, s390_r14, 0, ins->inst_destbasereg, ins->inst_offset);
3108 s390_basr (code, s390_r13, 0);
3110 s390_word (code, ins->inst_offset);
3111 s390_l (code, s390_r13, 0, s390_r13, 4);
3112 s390_st (code, s390_r14, s390_r13, ins->inst_destbasereg, 0);
3116 case OP_STOREI1_MEMBASE_REG: {
3117 if (s390_is_uimm12(ins->inst_offset)) {
3118 s390_stc (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3120 s390_basr (code, s390_r13, 0);
3122 s390_word (code, ins->inst_offset);
3123 s390_l (code, s390_r13, 0, s390_r13, 4);
3124 s390_stc (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3128 case OP_STOREI2_MEMBASE_REG: {
3129 if (s390_is_uimm12(ins->inst_offset)) {
3130 s390_sth (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3132 s390_basr (code, s390_r13, 0);
3134 s390_word (code, ins->inst_offset);
3135 s390_l (code, s390_r13, 0, s390_r13, 4);
3136 s390_sth (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3140 case OP_STORE_MEMBASE_REG:
3141 case OP_STOREI4_MEMBASE_REG: {
3142 if (s390_is_uimm12(ins->inst_offset)) {
3143 s390_st (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
3145 s390_basr (code, s390_r13, 0);
3147 s390_word (code, ins->inst_offset);
3148 s390_l (code, s390_r13, 0, s390_r13, 4);
3149 s390_st (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
3155 case CEE_LDIND_U4: {
3156 s390_basr (code, s390_r13, 0);
3158 s390_word (code, ins->inst_p0);
3159 s390_l (code, s390_r13, 0, s390_r13, 4);
3160 s390_l (code, ins->dreg, 0, s390_r13, 0);
3164 g_assert_not_reached ();
3166 case OP_LOAD_MEMBASE:
3167 case OP_LOADI4_MEMBASE:
3168 case OP_LOADU4_MEMBASE: {
3169 if (s390_is_uimm12(ins->inst_offset))
3170 s390_l (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
3172 if (s390_is_imm16(ins->inst_offset)) {
3173 s390_lhi (code, s390_r13, ins->inst_offset);
3174 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3176 s390_basr (code, s390_r13, 0);
3178 s390_word (code, ins->inst_offset);
3179 s390_l (code, s390_r13, 0, s390_r13, 4);
3180 s390_l (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
3185 case OP_LOADU1_MEMBASE: {
3186 s390_lhi (code, s390_r0, 0);
3187 if (s390_is_uimm12(ins->inst_offset))
3188 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3190 s390_basr (code, s390_r13, 0);
3192 s390_word (code, ins->inst_offset);
3193 s390_l (code, s390_r13, 0, s390_r13, 4);
3194 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3196 s390_lr (code, ins->dreg, s390_r0);
3199 case OP_LOADI1_MEMBASE: {
3200 s390_lhi (code, s390_r0, 0);
3201 if (s390_is_uimm12(ins->inst_offset))
3202 s390_ic (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3204 s390_basr (code, s390_r13, 0);
3206 s390_word (code, ins->inst_offset);
3207 s390_l (code, s390_r13, 0, s390_r13, 4);
3208 s390_ic (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3210 s390_lhi (code, s390_r13, 0x80);
3211 s390_nr (code, s390_r13, s390_r0);
3213 s390_lhi (code, s390_r13, 0xff00);
3214 s390_or (code, s390_r0, s390_r13);
3215 s390_lr (code, ins->dreg, s390_r0);
3218 case OP_LOADU2_MEMBASE: {
3219 s390_lhi (code, s390_r0, 0);
3220 if (s390_is_uimm12(ins->inst_offset))
3221 s390_icm (code, s390_r0, 3, ins->inst_basereg, ins->inst_offset);
3223 s390_basr (code, s390_r13, 0);
3225 s390_word (code, ins->inst_offset);
3226 s390_l (code, s390_r13, 0, s390_r13, 4);
3227 s390_ar (code, s390_r13, ins->inst_basereg);
3228 s390_icm (code, s390_r0, 3, s390_r13, 0);
3230 s390_lr (code, ins->dreg, s390_r0);
3233 case OP_LOADI2_MEMBASE: {
3234 s390_lhi (code, s390_r0, 0);
3235 if (s390_is_uimm12(ins->inst_offset))
3236 s390_lh (code, s390_r0, 0, ins->inst_basereg, ins->inst_offset);
3238 s390_basr (code, s390_r13, 0);
3240 s390_word (code, ins->inst_offset);
3241 s390_l (code, s390_r13, 0, s390_r13, 4);
3242 s390_lh (code, s390_r0, s390_r13, ins->inst_basereg, 0);
3244 s390_lr (code, ins->dreg, s390_r0);
3248 s390_lhi (code, s390_r0, 0x80);
3249 if (ins->dreg != ins->sreg1) {
3250 s390_lr (code, ins->dreg, ins->sreg1);
3252 s390_nr (code, s390_r0, ins->sreg1);
3254 s390_lhi (code, s390_r13, -1);
3255 s390_sll (code, s390_r13, 0, 8);
3256 s390_or (code, ins->dreg, s390_r13);
3260 s390_lhi (code, s390_r0, 0x80);
3261 s390_sll (code, s390_r0, 0, 8);
3262 if (ins->dreg != ins->sreg1) {
3263 s390_lr (code, ins->dreg, ins->sreg1);
3265 s390_nr (code, s390_r0, ins->sreg1);
3267 s390_lhi (code, s390_r13, -1);
3268 s390_sll (code, s390_r13, 0, 16);
3269 s390_or (code, ins->dreg, s390_r13);
3273 s390_lhi (code, s390_r0, 0xff);
3274 if (ins->dreg != ins->sreg1) {
3275 s390_lr (code, ins->dreg, ins->sreg1);
3277 s390_nr (code, ins->dreg, s390_r0);
3281 s390_lhi (code, s390_r0, -1);
3282 s390_sll (code, s390_r0, 0, 16);
3283 s390_srl (code, s390_r0, 0, 16);
3284 if (ins->dreg != ins->sreg1) {
3285 s390_lr (code, ins->dreg, ins->sreg1);
3287 s390_nr (code, ins->dreg, s390_r0);
3292 ((ins->next->opcode >= CEE_BNE_UN) &&
3293 (ins->next->opcode <= CEE_BLT_UN)) ||
3294 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3295 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3296 ((ins->next->opcode == OP_CLT_UN) ||
3297 (ins->next->opcode == OP_CGT_UN)))
3298 s390_clr (code, ins->sreg1, ins->sreg2);
3300 s390_cr (code, ins->sreg1, ins->sreg2);
3303 case OP_COMPARE_IMM: {
3304 if (s390_is_imm16 (ins->inst_imm)) {
3305 s390_lhi (code, s390_r0, ins->inst_imm);
3307 ((ins->next->opcode >= CEE_BNE_UN) &&
3308 (ins->next->opcode <= CEE_BLT_UN)) ||
3309 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3310 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3311 ((ins->next->opcode == OP_CLT_UN) ||
3312 (ins->next->opcode == OP_CGT_UN)))
3313 s390_clr (code, ins->sreg1, s390_r0);
3315 s390_cr (code, ins->sreg1, s390_r0);
3318 s390_basr (code, s390_r13, 0);
3320 s390_word (code, ins->inst_imm);
3322 ((ins->next->opcode >= CEE_BNE_UN) &&
3323 (ins->next->opcode <= CEE_BLT_UN)) ||
3324 ((ins->next->opcode >= OP_COND_EXC_NE_UN) &&
3325 (ins->next->opcode <= OP_COND_EXC_LT_UN)) ||
3326 ((ins->next->opcode == OP_CLT_UN) &&
3327 (ins->next->opcode == OP_CGT_UN)))
3328 s390_cl (code, ins->sreg1, 0, s390_r13, 4);
3330 s390_c (code, ins->sreg1, 0, s390_r13, 4);
3334 case OP_X86_TEST_NULL: {
3335 s390_ltr (code, ins->sreg1, ins->sreg1);
3343 if (ins->dreg != ins->sreg1) {
3344 s390_lr (code, ins->dreg, ins->sreg1);
3346 s390_alr (code, ins->dreg, ins->sreg2);
3350 if (ins->dreg != ins->sreg1) {
3351 s390_lr (code, ins->dreg, ins->sreg1);
3353 s390_ar (code, ins->dreg, ins->sreg2);
3357 if (ins->dreg != ins->sreg1) {
3358 s390_lr (code, ins->dreg, ins->sreg1);
3360 s390_alcr (code, ins->dreg, ins->sreg2);
3366 (ins->next->opcode == OP_ADC_IMM)) {
3367 s390_basr (code, s390_r13, 0);
3369 s390_word (code, ins->inst_imm);
3370 if (ins->dreg != ins->sreg1) {
3371 s390_lr (code, ins->dreg, ins->sreg1);
3373 s390_al (code, ins->dreg, 0, s390_r13, 4);
3375 if (s390_is_imm16 (ins->inst_imm)) {
3376 if (ins->dreg != ins->sreg1) {
3377 s390_lr (code, ins->dreg, ins->sreg1);
3379 s390_ahi (code, ins->dreg, ins->inst_imm);
3381 s390_basr (code, s390_r13, 0);
3383 s390_word (code, ins->inst_imm);
3384 if (ins->dreg != ins->sreg1) {
3385 s390_lr (code, ins->dreg, ins->sreg1);
3387 s390_a (code, ins->dreg, 0, s390_r13, 4);
3393 if (s390_is_imm16 (ins->inst_imm)) {
3394 if (ins->dreg != ins->sreg1) {
3395 s390_lr (code, ins->dreg, ins->sreg1);
3397 s390_lhi (code, s390_r0, ins->inst_imm);
3398 s390_alcr (code, ins->dreg, s390_r0);
3400 s390_basr (code, s390_r13, 0);
3402 s390_word (code, ins->inst_imm);
3403 s390_l (code, s390_r13, 0, s390_r13, 4);
3404 s390_alcr (code, ins->dreg, s390_r13);
3409 if (ins->dreg != ins->sreg1) {
3410 s390_lr (code, ins->dreg, ins->sreg1);
3412 s390_ar (code, ins->dreg, ins->sreg2);
3413 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3416 case CEE_ADD_OVF_UN: {
3417 if (ins->dreg != ins->sreg1) {
3418 s390_lr (code, ins->dreg, ins->sreg1);
3420 s390_alr (code, ins->dreg, ins->sreg2);
3421 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3424 case OP_ADD_OVF_CARRY: {
3425 if (ins->dreg != ins->sreg1) {
3426 s390_lr (code, ins->dreg, ins->sreg1);
3428 s390_lhi (code, s390_r0, 0);
3429 s390_lr (code, s390_r1, s390_r0);
3430 s390_alcr (code, s390_r0, s390_r1);
3431 s390_ar (code, ins->dreg, ins->sreg2);
3432 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3433 s390_ar (code, ins->dreg, s390_r0);
3434 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3437 case OP_ADD_OVF_UN_CARRY: {
3438 if (ins->dreg != ins->sreg1) {
3439 s390_lr (code, ins->dreg, ins->sreg1);
3441 s390_alcr (code, ins->dreg, ins->sreg2);
3442 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
3446 if (ins->dreg != ins->sreg1) {
3447 s390_lr (code, ins->dreg, ins->sreg1);
3449 s390_slr (code, ins->dreg, ins->sreg2);
3453 if (ins->dreg != ins->sreg1) {
3454 s390_lr (code, ins->dreg, ins->sreg1);
3456 s390_sr (code, ins->dreg, ins->sreg2);
3460 if (ins->dreg != ins->sreg1) {
3461 s390_lr (code, ins->dreg, ins->sreg1);
3463 s390_slbr (code, ins->dreg, ins->sreg2);
3468 if (s390_is_imm16 (-ins->inst_imm)) {
3469 if (ins->dreg != ins->sreg1) {
3470 s390_lr (code, ins->dreg, ins->sreg1);
3472 s390_ahi (code, ins->dreg, -ins->inst_imm);
3474 s390_basr (code, s390_r13, 0);
3476 s390_word (code, ins->inst_imm);
3477 if (ins->dreg != ins->sreg1) {
3478 s390_lr (code, ins->dreg, ins->sreg1);
3480 s390_s (code, ins->dreg, 0, s390_r13, 4);
3485 s390_basr (code, s390_r13, 0);
3487 s390_word (code, ins->inst_imm);
3488 s390_sl (code, ins->dreg, 0, s390_r13, 4);
3492 if (ins->dreg != ins->sreg1) {
3493 s390_lr (code, ins->dreg, ins->sreg1);
3495 s390_sr (code, ins->dreg, ins->sreg2);
3496 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3499 case CEE_SUB_OVF_UN: {
3500 if (ins->dreg != ins->sreg1) {
3501 s390_lr (code, ins->dreg, ins->sreg1);
3503 s390_slr (code, ins->dreg, ins->sreg2);
3504 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3507 case OP_SUB_OVF_CARRY: {
3508 if (ins->dreg != ins->sreg1) {
3509 s390_lr (code, ins->dreg, ins->sreg1);
3511 s390_lhi (code, s390_r0, 0);
3512 s390_lr (code, s390_r1, s390_r0);
3513 s390_slbr (code, s390_r0, s390_r1);
3514 s390_sr (code, ins->dreg, ins->sreg2);
3515 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3516 s390_ar (code, ins->dreg, s390_r0);
3517 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
3520 case OP_SUB_OVF_UN_CARRY: {
3521 if (ins->dreg != ins->sreg1) {
3522 s390_lr (code, ins->dreg, ins->sreg1);
3524 s390_slbr (code, ins->dreg, ins->sreg2);
3525 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
3529 if (ins->sreg1 == ins->dreg) {
3530 s390_nr (code, ins->dreg, ins->sreg2);
3533 if (ins->sreg2 == ins->dreg) {
3534 s390_nr (code, ins->dreg, ins->sreg1);
3537 s390_lr (code, ins->dreg, ins->sreg1);
3538 s390_nr (code, ins->dreg, ins->sreg2);
3544 if (s390_is_imm16 (ins->inst_imm)) {
3545 s390_lhi (code, s390_r0, ins->inst_imm);
3546 if (ins->dreg != ins->sreg1) {
3547 s390_lr (code, ins->dreg, ins->sreg1);
3549 s390_nr (code, ins->dreg, s390_r0);
3551 s390_basr (code, s390_r13, 0);
3553 s390_word (code, ins->inst_imm);
3554 if (ins->dreg != ins->sreg1) {
3555 s390_lr (code, ins->dreg, ins->sreg1);
3557 s390_n (code, ins->dreg, 0, s390_r13, 4);
3562 s390_lr (code, s390_r0, ins->sreg1);
3563 s390_srda (code, s390_r0, 0, 32);
3564 s390_dr (code, s390_r0, ins->sreg2);
3565 s390_lr (code, ins->dreg, s390_r1);
3569 s390_lr (code, s390_r0, ins->sreg1);
3570 s390_srdl (code, s390_r0, 0, 32);
3571 s390_dlr (code, s390_r0, ins->sreg2);
3572 s390_lr (code, ins->dreg, s390_r1);
3576 if (s390_is_imm16 (ins->inst_imm)) {
3577 s390_lhi (code, s390_r13, ins->inst_imm);
3578 s390_lr (code, s390_r0, ins->sreg1);
3580 s390_basr (code, s390_r13, 0);
3582 s390_word (code, ins->inst_imm);
3583 s390_lr (code, s390_r0, ins->sreg1);
3584 s390_l (code, s390_r13, 0, s390_r13, 4);
3586 s390_srda (code, s390_r0, 0, 32);
3587 s390_dr (code, s390_r0, s390_r13);
3588 s390_lr (code, ins->dreg, s390_r1);
3592 s390_lr (code, s390_r0, ins->sreg1);
3593 s390_srda (code, s390_r0, 0, 32);
3594 s390_dr (code, s390_r0, ins->sreg2);
3595 s390_lr (code, ins->dreg, s390_r0);
3598 s390_lr (code, s390_r0, ins->sreg1);
3599 s390_srdl (code, s390_r0, 0, 32);
3600 s390_dlr (code, s390_r0, ins->sreg2);
3601 s390_lr (code, ins->dreg, s390_r0);
3605 if (s390_is_imm16 (ins->inst_imm)) {
3606 s390_lhi (code, s390_r13, ins->inst_imm);
3607 s390_lr (code, s390_r0, ins->sreg1);
3609 s390_basr (code, s390_r13, 0);
3611 s390_word (code, ins->inst_imm);
3612 s390_lr (code, s390_r0, ins->sreg1);
3613 s390_l (code, s390_r13, 0, s390_r13, 4);
3615 s390_srda (code, s390_r0, 0, 32);
3616 s390_dr (code, s390_r0, s390_r13);
3617 s390_lr (code, ins->dreg, s390_r0);
3621 if (ins->sreg1 == ins->dreg) {
3622 s390_or (code, ins->dreg, ins->sreg2);
3625 if (ins->sreg2 == ins->dreg) {
3626 s390_or (code, ins->dreg, ins->sreg1);
3629 s390_lr (code, ins->dreg, ins->sreg1);
3630 s390_or (code, ins->dreg, ins->sreg2);
3636 if (s390_is_imm16 (ins->inst_imm)) {
3637 s390_lhi (code, s390_r0, ins->inst_imm);
3638 if (ins->dreg != ins->sreg1) {
3639 s390_lr (code, ins->dreg, ins->sreg1);
3641 s390_or (code, ins->dreg, s390_r0);
3643 s390_basr (code, s390_r13, 0);
3645 s390_word (code, ins->inst_imm);
3646 if (ins->dreg != ins->sreg1) {
3647 s390_lr (code, ins->dreg, ins->sreg1);
3649 s390_o (code, ins->dreg, 0, s390_r13, 4);
3654 if (ins->sreg1 == ins->dreg) {
3655 s390_xr (code, ins->dreg, ins->sreg2);
3658 if (ins->sreg2 == ins->dreg) {
3659 s390_xr (code, ins->dreg, ins->sreg1);
3662 s390_lr (code, ins->dreg, ins->sreg1);
3663 s390_xr (code, ins->dreg, ins->sreg2);
3669 if (s390_is_imm16 (ins->inst_imm)) {
3670 s390_lhi (code, s390_r0, ins->inst_imm);
3671 if (ins->dreg != ins->sreg1) {
3672 s390_lr (code, ins->dreg, ins->sreg1);
3674 s390_xr (code, ins->dreg, s390_r0);
3676 s390_basr (code, s390_r13, 0);
3678 s390_word (code, ins->inst_imm);
3679 if (ins->dreg != ins->sreg1) {
3680 s390_lr (code, ins->dreg, ins->sreg1);
3682 s390_x (code, ins->dreg, 0, s390_r13, 4);
3687 if (ins->sreg1 != ins->dreg) {
3688 s390_lr (code, ins->dreg, ins->sreg1);
3690 s390_sll (code, ins->dreg, ins->sreg2, 0);
3694 if (ins->sreg1 != ins->dreg) {
3695 s390_lr (code, ins->dreg, ins->sreg1);
3697 s390_sll (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3701 if (ins->sreg1 != ins->dreg) {
3702 s390_lr (code, ins->dreg, ins->sreg1);
3704 s390_sra (code, ins->dreg, ins->sreg2, 0);
3708 if (ins->sreg1 != ins->dreg) {
3709 s390_lr (code, ins->dreg, ins->sreg1);
3711 s390_sra (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3714 case OP_SHR_UN_IMM: {
3715 if (ins->sreg1 != ins->dreg) {
3716 s390_lr (code, ins->dreg, ins->sreg1);
3718 s390_srl (code, ins->dreg, 0, (ins->inst_imm & 0x1f));
3722 if (ins->sreg1 != ins->dreg) {
3723 s390_lr (code, ins->dreg, ins->sreg1);
3725 s390_srl (code, ins->dreg, ins->sreg2, 0);
3729 if (ins->sreg1 != ins->dreg) {
3730 s390_lr (code, ins->dreg, ins->sreg1);
3732 s390_lhi (code, s390_r0, -1);
3733 s390_xr (code, ins->dreg, s390_r0);
3737 s390_lcr (code, ins->dreg, ins->sreg1);
3741 if (ins->sreg1 == ins->dreg) {
3742 s390_msr (code, ins->dreg, ins->sreg2);
3745 if (ins->sreg2 == ins->dreg) {
3746 s390_msr (code, ins->dreg, ins->sreg1);
3749 s390_lr (code, ins->dreg, ins->sreg1);
3750 s390_msr (code, ins->dreg, ins->sreg2);
3756 if (s390_is_imm16 (ins->inst_imm)) {
3757 s390_lhi (code, s390_r13, ins->inst_imm);
3759 s390_basr (code, s390_r13, 0);
3761 s390_word (code, ins->inst_imm);
3762 if (ins->dreg != ins->sreg1) {
3763 s390_lr (code, ins->dreg, ins->sreg1);
3765 s390_l (code, s390_r13, 0, s390_r13, 4);
3767 s390_msr (code, ins->dreg, s390_r13);
3772 s390_ltr (code, s390_r1, ins->sreg1);
3773 s390_jz (code, 0); CODEPTR(code, o[0]);
3774 s390_ltr (code, s390_r0, ins->sreg2);
3776 s390_lhi (code, s390_r1, 0);
3777 s390_j (code, 0); CODEPTR(code, o[1]);
3778 s390_xr (code, s390_r0, s390_r1);
3779 s390_msr (code, s390_r1, ins->sreg2);
3780 s390_xr (code, s390_r0, s390_r1);
3781 s390_srl (code, s390_r0, 0, 31);
3782 s390_ltr (code, s390_r0, s390_r0);
3783 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3784 PTRSLOT (code, o[0]);
3785 PTRSLOT (code, o[1]);
3786 s390_lr (code, ins->dreg, s390_r1);
3789 case CEE_MUL_OVF_UN: {
3790 s390_lhi (code, s390_r0, 0);
3791 s390_lr (code, s390_r1, ins->sreg1);
3792 s390_mlr (code, s390_r0, ins->sreg2);
3793 s390_ltr (code, s390_r0, s390_r0);
3794 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NZ, "OverflowException");
3795 s390_lr (code, ins->dreg, s390_r1);
3799 s390_l (code, s390_r0, 0, ins->sreg1, 4);
3800 s390_lr (code, s390_r14, s390_r0);
3801 s390_srda (code, s390_r0, 0, 32);
3802 s390_m (code, s390_r0, 0, ins->sreg2, 4);
3803 s390_srl (code, s390_r14, 0, 31);
3804 s390_a (code, s390_r14, 0, ins->sreg1, 0);
3805 s390_l (code, s390_r13, 0, ins->sreg2, 0);
3806 s390_srl (code, s390_r13, 0, 31);
3807 s390_ms (code, s390_r13, 0, ins->sreg1, 4);
3808 s390_ar (code, s390_r14, s390_r13);
3809 s390_st (code, s390_r14, 0, ins->dreg, 0);
3810 s390_st (code, s390_r1, 0, ins->dreg, 4);
3814 case OP_SETREGIMM: {
3815 if (s390_is_imm16(ins->inst_c0)) {
3816 s390_lhi (code, ins->dreg, ins->inst_c0);
3818 s390_basr (code, s390_r13, 0);
3820 s390_word (code, ins->inst_c0);
3821 s390_l (code, ins->dreg, 0, s390_r13, 4);
3826 s390_basr (code, s390_r13, 0);
3828 mono_add_patch_info (cfg, code - cfg->native_code,
3829 (MonoJumpInfoType)ins->inst_i1, ins->inst_p0);
3830 s390_word (code, 0);
3831 s390_l (code,ins->dreg, 0, s390_r13, 4);
3838 if (ins->dreg != ins->sreg1) {
3839 s390_lr (code, ins->dreg, ins->sreg1);
3844 int saved = ins->sreg1;
3845 if (ins->sreg1 == s390_r2) {
3846 s390_lr (code, s390_r0, ins->sreg1);
3849 if (ins->sreg2 != s390_r2)
3850 s390_lr (code, s390_r2, ins->sreg2);
3851 if (saved != s390_r3)
3852 s390_lr (code, s390_r3, saved);
3857 if (ins->dreg != ins->sreg1) {
3858 s390_ldr (code, ins->dreg, ins->sreg1);
3862 case OP_S390_SETF4RET: {
3863 s390_ledbr (code, ins->dreg, ins->sreg1);
3866 case OP_FCONV_TO_R4: {
3868 (ins->next->opcode != OP_STORER4_MEMBASE_REG))
3869 s390_ledbr (code, ins->dreg, ins->sreg1);
3874 if (cfg->method->save_lmf)
3875 code = restoreLMF(cfg, code);
3877 if (cfg->flags & MONO_CFG_HAS_TAIL) {
3878 s390_lm (code, s390_r2, s390_r5, STK_BASE,
3879 S390_PARM_SAVE_OFFSET);
3880 for (fParm = 0; fParm < 4; fParm++)
3881 s390_ld (code, fParm, 0, STK_BASE,
3882 S390_FLOAT_SAVE_OFFSET+fParm*sizeof(double));
3885 code = backUpStackPtr(cfg, code);
3886 s390_l (code, s390_r14, 0, STK_BASE, S390_RET_ADDR_OFFSET);
3887 mono_add_patch_info (cfg, code - cfg->native_code,
3888 MONO_PATCH_INFO_METHOD_JUMP,
3890 s390_jcl (code, S390_CC_UN, 0);
3893 case OP_CHECK_THIS: {
3894 /* ensure ins->sreg1 is not NULL */
3895 s390_icm (code, s390_r0, 15, ins->sreg1, 0);
3899 NOT_IMPLEMENTED("OP_ARGLIST");
3900 s390_basr (code, s390_r13, 0);
3902 s390_word (code, cfg->sig_cookie);
3903 s390_mvc (code, 4, ins->sreg1, 0, s390_r13, 4);
3907 call = (MonoCallInst*)ins;
3908 if (ins->flags & MONO_INST_HAS_METHOD)
3909 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD,
3912 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS,
3914 s390_brasl (code, s390_r14, 0);
3915 if (call->signature->ret->type == MONO_TYPE_R4)
3916 s390_ldebr (code, s390_f0, s390_f0);
3923 call = (MonoCallInst*)ins;
3924 if (ins->flags & MONO_INST_HAS_METHOD)
3925 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_METHOD, call->method);
3927 mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, call->fptr);
3928 s390_brasl (code, s390_r14, 0);
3931 case OP_FCALL_REG: {
3932 call = (MonoCallInst*)ins;
3933 s390_lr (code, s390_r1, ins->sreg1);
3934 s390_basr (code, s390_r14, s390_r1);
3935 if (call->signature->ret->type == MONO_TYPE_R4)
3936 s390_ldebr (code, s390_f0, s390_f0);
3941 case OP_VOIDCALL_REG:
3943 s390_lr (code, s390_r1, ins->sreg1);
3944 s390_basr (code, s390_r14, s390_r1);
3947 case OP_FCALL_MEMBASE: {
3948 call = (MonoCallInst*)ins;
3949 s390_l (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3950 s390_basr (code, s390_r14, s390_r1);
3951 if (call->signature->ret->type == MONO_TYPE_R4)
3952 s390_ldebr (code, s390_f0, s390_f0);
3955 case OP_LCALL_MEMBASE:
3956 case OP_VCALL_MEMBASE:
3957 case OP_VOIDCALL_MEMBASE:
3958 case OP_CALL_MEMBASE: {
3959 s390_l (code, s390_r1, 0, ins->sreg1, ins->inst_offset);
3960 s390_basr (code, s390_r14, s390_r1);
3964 g_assert_not_reached ();
3967 int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area +
3968 S390_STACK_ALIGNMENT - 1;
3969 int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
3970 s390_lr (code, s390_r1, ins->sreg1);
3971 s390_ahi (code, s390_r1, 14);
3972 s390_srl (code, s390_r1, 0, 3);
3973 s390_sll (code, s390_r1, 0, 3);
3974 s390_l (code, s390_r13, 0, STK_BASE, 0);
3975 s390_lcr (code, s390_r1, s390_r1);
3976 s390_la (code, STK_BASE, STK_BASE, s390_r1, 0);
3977 s390_st (code, s390_r13, 0, STK_BASE, 0);
3978 s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
3979 s390_srl (code, ins->dreg, 0, 3);
3980 s390_sll (code, ins->dreg, 0, 3);
3984 s390_br (code, s390_r14);
3988 s390_lr (code, s390_r2, ins->sreg1);
3989 mono_add_patch_info (cfg, code-cfg->native_code, MONO_PATCH_INFO_INTERNAL_METHOD,
3990 (gpointer)"mono_arch_throw_exception");
3991 s390_brasl (code, s390_r14, 0);
3994 case OP_START_HANDLER: {
3995 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
3996 s390_st (code, s390_r14, 0,
3997 ins->inst_left->inst_basereg,
3998 ins->inst_left->inst_offset);
4000 s390_basr (code, s390_r13, 0);
4002 s390_word (code, ins->inst_left->inst_offset);
4003 s390_l (code, s390_r13, 0, s390_r13, 4);
4004 s390_st (code, s390_r14, s390_r13,
4005 ins->inst_left->inst_basereg, 0);
4009 case OP_ENDFILTER: {
4010 if (ins->sreg1 != s390_r2)
4011 s390_lr (code, s390_r2, ins->sreg1);
4012 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4013 s390_l (code, s390_r14, 0, ins->inst_left->inst_basereg,
4014 ins->inst_left->inst_offset);
4016 s390_basr (code, s390_r13, 0);
4018 s390_word (code, ins->inst_left->inst_offset);
4019 s390_l (code, s390_r13, 0, s390_r13, 4);
4020 s390_l (code, s390_r14, s390_r13,
4021 ins->inst_left->inst_basereg, 0);
4023 s390_br (code, s390_r14);
4026 case CEE_ENDFINALLY: {
4027 if (s390_is_uimm12 (ins->inst_left->inst_offset)) {
4028 s390_l (code, s390_r14, 0, ins->inst_left->inst_basereg,
4029 ins->inst_left->inst_offset);
4031 s390_basr (code, s390_r13, 0);
4033 s390_word (code, ins->inst_left->inst_offset);
4034 s390_l (code, s390_r13, 0, s390_r13, 4);
4035 s390_l (code, s390_r14, s390_r13,
4036 ins->inst_left->inst_basereg, 0);
4038 s390_br (code, s390_r14);
4041 case OP_CALL_HANDLER: {
4042 mono_add_patch_info (cfg, code-cfg->native_code,
4043 MONO_PATCH_INFO_BB, ins->inst_target_bb);
4044 s390_brasl (code, s390_r14, 0);
4048 ins->inst_c0 = code - cfg->native_code;
4052 EMIT_UNCOND_BRANCH(ins);
4055 s390_br (code, ins->sreg1);
4059 s390_lhi (code, ins->dreg, 1);
4061 s390_lhi (code, ins->dreg, 0);
4065 s390_lhi (code, ins->dreg, 1);
4067 s390_lhi (code, ins->dreg, 0);
4071 s390_lhi (code, ins->dreg, 1);
4073 s390_lhi (code, ins->dreg, 0);
4077 s390_lhi (code, ins->dreg, 1);
4079 s390_lhi (code, ins->dreg, 0);
4083 s390_lhi (code, ins->dreg, 1);
4085 s390_lhi (code, ins->dreg, 0);
4088 case OP_COND_EXC_EQ:
4089 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_EQ, ins->inst_p1);
4091 case OP_COND_EXC_NE_UN:
4092 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NE, ins->inst_p1);
4094 case OP_COND_EXC_LT:
4095 case OP_COND_EXC_LT_UN:
4096 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, ins->inst_p1);
4098 case OP_COND_EXC_GT:
4099 case OP_COND_EXC_GT_UN:
4100 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GT, ins->inst_p1);
4102 case OP_COND_EXC_GE:
4103 case OP_COND_EXC_GE_UN:
4104 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_GE, ins->inst_p1);
4106 case OP_COND_EXC_LE:
4107 case OP_COND_EXC_LE_UN:
4108 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LE, ins->inst_p1);
4110 case OP_COND_EXC_OV:
4111 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, ins->inst_p1);
4113 case OP_COND_EXC_NO:
4114 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NO, ins->inst_p1);
4117 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, ins->inst_p1);
4119 case OP_COND_EXC_NC:
4120 EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, ins->inst_p1);
4123 EMIT_COND_BRANCH (ins, S390_CC_EQ);
4126 EMIT_COND_BRANCH (ins, S390_CC_NE);
4130 EMIT_COND_BRANCH (ins, S390_CC_LT);
4134 EMIT_COND_BRANCH (ins, S390_CC_GT);
4138 EMIT_COND_BRANCH (ins, S390_CC_GE);
4142 EMIT_COND_BRANCH (ins, S390_CC_LE);
4145 /* floating point opcodes */
4147 if (*((float *) ins->inst_p0) == 0) {
4148 s390_lzdr (code, ins->dreg);
4150 s390_basr (code, s390_r13, 0);
4152 s390_word (code, ins->inst_p0);
4153 s390_l (code, s390_r13, 0, s390_r13, 4);
4154 s390_ld (code, ins->dreg, 0, s390_r13, 0);
4159 if (*((float *) ins->inst_p0) == 0) {
4160 s390_lzdr (code, ins->dreg);
4162 s390_basr (code, s390_r13, 0);
4164 s390_word (code, ins->inst_p0);
4165 s390_l (code, s390_r13, 0, s390_r13, 4);
4166 s390_ldeb (code, ins->dreg, 0, s390_r13, 0);
4170 case OP_STORER8_MEMBASE_REG: {
4171 if (s390_is_uimm12(ins->inst_offset)) {
4172 s390_std (code, ins->sreg1, 0, ins->inst_destbasereg, ins->inst_offset);
4174 s390_basr (code, s390_r13, 0);
4176 s390_word (code, ins->inst_offset);
4177 s390_l (code, s390_r13, 0, s390_r13, 4);
4178 s390_std (code, ins->sreg1, s390_r13, ins->inst_destbasereg, 0);
4182 case OP_LOADR8_MEMBASE: {
4183 if (s390_is_uimm12(ins->inst_offset)) {
4184 s390_ld (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4186 s390_basr (code, s390_r13, 0);
4188 s390_word (code, ins->inst_offset);
4189 s390_l (code, s390_r13, 0, s390_r13, 4);
4190 s390_ld (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4194 case OP_STORER4_MEMBASE_REG: {
4195 if (s390_is_uimm12(ins->inst_offset)) {
4196 s390_ledbr(code, s390_f15, ins->sreg1);
4197 s390_ste (code, s390_f15, 0, ins->inst_destbasereg, ins->inst_offset);
4199 s390_basr (code, s390_r13, 0);
4201 s390_word (code, ins->inst_offset);
4202 s390_l (code, s390_r13, 0, s390_r13, 4);
4203 s390_ledbr(code, s390_f15, ins->sreg1);
4204 s390_ste (code, s390_f15, s390_r13, ins->inst_destbasereg, 0);
4208 case OP_LOADR4_MEMBASE: {
4209 if (s390_is_uimm12(ins->inst_offset)) {
4210 s390_ldeb (code, ins->dreg, 0, ins->inst_basereg, ins->inst_offset);
4212 s390_basr (code, s390_r13, 0);
4214 s390_word (code, ins->inst_offset);
4215 s390_l (code, s390_r13, 0, s390_r13, 4);
4216 s390_ldeb (code, ins->dreg, s390_r13, ins->inst_basereg, 0);
4220 case CEE_CONV_R_UN: {
4221 s390_cdfbr (code, ins->dreg, ins->sreg1);
4222 s390_ltr (code, ins->sreg1, ins->sreg1);
4223 s390_jnl (code, 12);
4224 s390_basr (code, s390_r13, 0);
4226 s390_word (code, 0x41f00000);
4227 s390_word (code, 0);
4228 s390_adb (code, ins->dreg, 0, s390_r13, 4);
4232 s390_cdfbr (code, ins->dreg, ins->sreg1);
4236 s390_cdfbr (code, ins->dreg, ins->sreg1);
4239 case OP_FCONV_TO_I1:
4240 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, TRUE);
4242 case OP_FCONV_TO_U1:
4243 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 1, FALSE);
4245 case OP_FCONV_TO_I2:
4246 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, TRUE);
4248 case OP_FCONV_TO_U2:
4249 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 2, FALSE);
4251 case OP_FCONV_TO_I4:
4253 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, TRUE);
4255 case OP_FCONV_TO_U4:
4257 code = emit_float_to_int (cfg, code, ins->dreg, ins->sreg1, 4, FALSE);
4259 case OP_FCONV_TO_I8:
4260 case OP_FCONV_TO_U8:
4261 g_assert_not_reached ();
4262 /* Implemented as helper calls */
4264 case OP_LCONV_TO_R_UN:
4265 g_assert_not_reached ();
4266 /* Implemented as helper calls */
4268 case OP_LCONV_TO_OVF_I: {
4269 /* Valid ints: 0xffffffff:8000000 to 00000000:0x7f000000 */
4271 s390_ltr (code, ins->sreg2, ins->sreg2);
4272 s390_jnl (code, 0); CODEPTR(code, o[0]);
4273 s390_ltr (code, ins->sreg1, ins->sreg1);
4274 s390_jnl (code, 0); CODEPTR(code, o[1]);
4275 s390_lhi (code, s390_r13, -1);
4276 s390_cr (code, ins->sreg1, s390_r13);
4277 s390_jnz (code, 0); CODEPTR(code, o[2]);
4278 if (ins->dreg != ins->sreg2)
4279 s390_lr (code, ins->dreg, ins->sreg2);
4280 s390_j (code, 0); CODEPTR(code, o[3]);
4281 PTRSLOT(code, o[0]);
4282 s390_jz (code, 0); CODEPTR(code, o[4]);
4283 PTRSLOT(code, o[1]);
4284 PTRSLOT(code, o[2]);
4285 mono_add_patch_info (cfg, code - cfg->native_code,
4286 MONO_PATCH_INFO_EXC, "OverflowException");
4287 s390_brasl (code, s390_r14, 0);
4288 PTRSLOT(code, o[3]);
4289 PTRSLOT(code, o[4]);
4293 s390_sqdbr (code, ins->dreg, ins->sreg1);
4297 if (ins->dreg == ins->sreg1)
4298 s390_adbr (code, ins->dreg, ins->sreg2);
4300 if (ins->dreg == ins->sreg2)
4301 s390_adbr (code, ins->dreg, ins->sreg1);
4303 s390_ldr (code, ins->dreg, ins->sreg1);
4304 s390_adbr (code, ins->dreg, ins->sreg2);
4310 if (ins->dreg == ins->sreg1)
4311 s390_sdbr (code, ins->dreg, ins->sreg2);
4313 s390_ldr (code, ins->dreg, ins->sreg1);
4314 s390_sdbr (code, ins->dreg, ins->sreg2);
4319 if (ins->dreg == ins->sreg1)
4320 s390_mdbr (code, ins->dreg, ins->sreg2);
4322 if (ins->dreg == ins->sreg2)
4323 s390_mdbr (code, ins->dreg, ins->sreg1);
4325 s390_ldr (code, ins->dreg, ins->sreg1);
4326 s390_mdbr (code, ins->dreg, ins->sreg2);
4332 if (ins->dreg == ins->sreg1)
4333 s390_ddbr (code, ins->dreg, ins->sreg2);
4335 s390_ldr (code, ins->dreg, ins->sreg1);
4336 s390_ddbr (code, ins->dreg, ins->sreg2);
4341 s390_lcdbr (code, ins->dreg, ins->sreg1);
4345 if (ins->dreg != ins->sreg1) {
4346 s390_ldr (code, ins->dreg, ins->sreg1);
4348 s390_didbr (code, ins->dreg, ins->sreg2, 5, s390_f15);
4352 s390_cdbr (code, ins->sreg1, ins->sreg2);
4356 s390_cdbr (code, ins->sreg1, ins->sreg2);
4357 s390_lhi (code, ins->dreg, 1);
4359 s390_lhi (code, ins->dreg, 0);
4363 s390_cdbr (code, ins->sreg1, ins->sreg2);
4364 s390_lhi (code, ins->dreg, 1);
4366 s390_lhi (code, ins->dreg, 0);
4370 s390_cdbr (code, ins->sreg1, ins->sreg2);
4371 s390_lhi (code, ins->dreg, 1);
4373 s390_lhi (code, ins->dreg, 0);
4377 s390_cdbr (code, ins->sreg1, ins->sreg2);
4378 s390_lhi (code, ins->dreg, 1);
4380 s390_lhi (code, ins->dreg, 0);
4384 s390_cdbr (code, ins->sreg1, ins->sreg2);
4385 s390_lhi (code, ins->dreg, 1);
4387 s390_lhi (code, ins->dreg, 0);
4391 EMIT_COND_BRANCH (ins, S390_CC_EQ|S390_CC_OV);
4394 EMIT_COND_BRANCH (ins, S390_CC_NE|S390_CC_OV);
4397 EMIT_COND_BRANCH (ins, S390_CC_LT);
4400 EMIT_COND_BRANCH (ins, S390_CC_LT|S390_CC_OV);
4403 EMIT_COND_BRANCH (ins, S390_CC_GT);
4406 EMIT_COND_BRANCH (ins, S390_CC_GT|S390_CC_OV);
4409 EMIT_COND_BRANCH (ins, S390_CC_GE);
4412 EMIT_COND_BRANCH (ins, S390_CC_GE|S390_CC_OV);
4415 EMIT_COND_BRANCH (ins, S390_CC_LE);
4418 EMIT_COND_BRANCH (ins, S390_CC_LE|S390_CC_OV);
4420 case CEE_CKFINITE: {
4422 s390_lhi (code, s390_r13, 0x7f);
4423 s390_tcdb (code, ins->sreg1, 0, s390_r13, 0);
4424 s390_jz (code, 0); CODEPTR(code, o);
4425 mono_add_patch_info (cfg, code - cfg->native_code,
4426 MONO_PATCH_INFO_EXC, "ArithmeticException");
4427 s390_brasl (code, s390_r14,0);
4431 case OP_S390_MOVE: {
4432 if (ins->unused > 0) {
4433 if (ins->unused <= 256) {
4434 s390_mvc (code, ins->unused, ins->dreg,
4435 ins->inst_offset, ins->sreg1, ins->inst_imm);
4437 s390_lr (code, s390_r0, ins->dreg);
4438 if (s390_is_imm16 (ins->inst_offset)) {
4439 s390_ahi (code, s390_r0, ins->inst_offset);
4441 s390_basr (code, s390_r13, 0);
4443 s390_word (code, ins->inst_offset);
4444 s390_a (code, s390_r0, 0, s390_r13, 4);
4446 s390_lr (code, s390_r12, ins->sreg1);
4447 if (s390_is_imm16 (ins->inst_imm)) {
4448 s390_ahi (code, s390_r12, ins->inst_imm);
4450 s390_basr (code, s390_r13, 0);
4452 s390_word (code, ins->inst_imm);
4453 s390_a (code, s390_r12, 0, s390_r13, 4);
4455 s390_lr (code, s390_r1, ins->sreg1);
4456 s390_lr (code, s390_r13, s390_r1);
4457 s390_mvcle(code, s390_r0, s390_r12, 0, 0);
4464 g_warning ("unknown opcode %s in %s()\n", mono_inst_name (ins->opcode), __FUNCTION__);
4465 g_assert_not_reached ();
4468 if ((cfg->opt & MONO_OPT_BRANCH) && ((code - cfg->native_code - offset) > max_len)) {
4469 g_warning ("wrong maximal instruction length of instruction %s (expected %d, got %d)",
4470 mono_inst_name (ins->opcode), max_len, code - cfg->native_code - offset);
4471 g_assert_not_reached ();
4477 last_offset = offset;
4482 cfg->code_len = code - cfg->native_code;
4485 /*========================= End of Function ========================*/
4487 /*------------------------------------------------------------------*/
4489 /* Name - mono_arch_register_lowlevel_calls */
4491 /* Function - Register routines to help with --trace operation. */
4493 /*------------------------------------------------------------------*/
4496 mono_arch_register_lowlevel_calls (void)
4498 mono_register_jit_icall (enter_method, "mono_enter_method", NULL, TRUE);
4499 mono_register_jit_icall (leave_method, "mono_leave_method", NULL, TRUE);
4502 /*========================= End of Function ========================*/
4504 /*------------------------------------------------------------------*/
4506 /* Name - mono_arch_patch_code */
4508 /* Function - Process the patch data created during the */
4509 /* instruction build process. This resolves jumps, */
4510 /* calls, variables etc. */
4512 /*------------------------------------------------------------------*/
4515 mono_arch_patch_code (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *ji, gboolean run_cctors)
4517 MonoJumpInfo *patch_info;
4519 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
4520 unsigned char *ip = patch_info->ip.i + code;
4523 switch (patch_info->type) {
4524 case MONO_PATCH_INFO_BB:
4525 target = S390_RELATIVE((patch_info->data.bb->native_offset+code),
4527 ip += 2; /* Skip over op-code */
4529 case MONO_PATCH_INFO_ABS:
4530 target = S390_RELATIVE(patch_info->data.target, ip);
4531 ip += 2; /* Skip over op-code */
4533 case MONO_PATCH_INFO_LABEL:
4534 target = S390_RELATIVE((patch_info->data.inst->inst_c0+code),ip);
4535 ip += 2; /* Skip over op-code */
4537 case MONO_PATCH_INFO_IP:
4540 case MONO_PATCH_INFO_METHOD_REL:
4541 g_assert_not_reached ();
4542 *((gpointer *)(ip)) = code + patch_info->data.offset;
4544 case MONO_PATCH_INFO_INTERNAL_METHOD: {
4545 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
4547 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
4548 g_assert_not_reached ();
4550 target = S390_RELATIVE(mono_icall_get_wrapper (mi), ip);
4551 ip += 2; /* Skip over op-code */
4554 case MONO_PATCH_INFO_METHOD_JUMP: {
4557 /*------------------------------------------------------*/
4558 /* get the trampoline to the method from the domain */
4559 /*------------------------------------------------------*/
4560 target = mono_create_jump_trampoline (domain,
4561 patch_info->data.method,
4563 target = S390_RELATIVE(target, ip);
4564 if (!domain->jump_target_hash)
4565 domain->jump_target_hash = g_hash_table_new (NULL, NULL);
4566 list = g_hash_table_lookup (domain->jump_target_hash,
4567 patch_info->data.method);
4568 list = g_slist_prepend (list, ip);
4569 g_hash_table_insert (domain->jump_target_hash,
4570 patch_info->data.method, list);
4574 case MONO_PATCH_INFO_METHOD:
4575 if (patch_info->data.method == method) {
4576 target = S390_RELATIVE(code, ip);
4578 /* get the trampoline to the method from the domain */
4579 target = S390_RELATIVE(mono_arch_create_jit_trampoline (patch_info->data.method), ip);
4580 target = mono_arch_create_jit_trampoline(patch_info->data.method);
4581 target = S390_RELATIVE(target, ip);
4583 ip += 2; /* Skip over op-code */
4585 case MONO_PATCH_INFO_SWITCH: {
4586 gpointer *table = (gpointer *)patch_info->data.target;
4588 /*------------------------------------------------------*/
4589 /* ip is pointing at the basr r13,0/j +4 instruction */
4590 /* the vtable value follows this (i.e. ip+6) */
4591 /*------------------------------------------------------*/
4592 *((gconstpointer *)(ip+6)) = table;
4594 for (i = 0; i < patch_info->table_size; i++) {
4595 table [i] = (int)patch_info->data.table [i] + code;
4599 case MONO_PATCH_INFO_METHODCONST:
4600 case MONO_PATCH_INFO_CLASS:
4601 case MONO_PATCH_INFO_IMAGE:
4602 case MONO_PATCH_INFO_FIELD:
4603 target = S390_RELATIVE(patch_info->data.target, ip);
4605 case MONO_PATCH_INFO_R4:
4606 case MONO_PATCH_INFO_R8:
4607 g_assert_not_reached ();
4608 *((gconstpointer *)(ip + 2)) = patch_info->data.target;
4610 case MONO_PATCH_INFO_IID:
4611 mono_class_init (patch_info->data.klass);
4612 target = S390_RELATIVE(patch_info->data.klass->interface_id, ip);
4614 case MONO_PATCH_INFO_VTABLE:
4615 target = S390_RELATIVE(mono_class_vtable (domain, patch_info->data.klass),ip);
4618 case MONO_PATCH_INFO_CLASS_INIT:
4619 target = S390_RELATIVE(mono_create_class_init_trampoline (mono_class_vtable (domain, patch_info->data.klass)), ip);
4622 case MONO_PATCH_INFO_SFLDA: {
4623 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
4624 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && mono_class_needs_cctor_run (vtable->klass, method))
4625 /* Done by the generated code */
4629 mono_runtime_class_init (vtable);
4631 target = S390_RELATIVE((char*)vtable->data + patch_info->data.field->offset, ip);
4635 case MONO_PATCH_INFO_EXC_NAME:
4636 *((gconstpointer *)(ip)) = patch_info->data.name;
4638 case MONO_PATCH_INFO_LDSTR:
4639 target = mono_ldstr (domain, patch_info->data.token->image,
4640 mono_metadata_token_index (patch_info->data.token->token));
4642 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
4644 MonoClass *handle_class;
4646 handle = mono_ldtoken (patch_info->data.token->image,
4647 patch_info->data.token->token,
4648 &handle_class, NULL);
4649 mono_class_init (handle_class);
4650 mono_class_init (mono_class_from_mono_type (handle));
4655 case MONO_PATCH_INFO_LDTOKEN: {
4657 MonoClass *handle_class;
4659 handle = mono_ldtoken (patch_info->data.token->image,
4660 patch_info->data.token->token,
4661 &handle_class, NULL);
4662 mono_class_init (handle_class);
4667 case MONO_PATCH_INFO_EXC:
4668 /* everything is dealt with at epilog output time */
4671 g_assert_not_reached ();
4673 s390_patch (ip, target);
4677 /*========================= End of Function ========================*/
4679 /*------------------------------------------------------------------*/
4681 /* Name - mono_arch_max_epilog_size */
4683 /* Function - Determine the maximum size of the epilog code. */
4685 /*------------------------------------------------------------------*/
4688 mono_arch_max_epilog_size (MonoCompile *cfg)
4690 int max_epilog_size = 96;
4691 MonoJumpInfo *patch_info;
4693 if (cfg->method->save_lmf)
4694 max_epilog_size += 128;
4696 if (mono_jit_trace_calls != NULL)
4697 max_epilog_size += 128;
4699 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
4700 max_epilog_size += 128;
4702 /* count the number of exception infos */
4704 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
4705 if (patch_info->type == MONO_PATCH_INFO_EXC)
4706 max_epilog_size += 26;
4709 return max_epilog_size;
4712 /*========================= End of Function ========================*/
4714 /*------------------------------------------------------------------*/
4716 /* Name - mono_arch_emit_prolog */
4718 /* Function - Create the instruction sequence for a function */
4721 /*------------------------------------------------------------------*/
4724 mono_arch_emit_prolog (MonoCompile *cfg)
4726 MonoMethod *method = cfg->method;
4728 MonoMethodSignature *sig;
4730 int alloc_size, pos, max_offset, i, lmfOffset;
4736 if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
4739 cfg->code_size = 512;
4740 cfg->native_code = code = g_malloc (cfg->code_size);
4742 if (cfg->flags & MONO_CFG_HAS_TAIL) {
4743 s390_stm (code, s390_r2, s390_r14, STK_BASE, S390_PARM_SAVE_OFFSET);
4744 for (pos = 0; pos < 4; pos++)
4745 s390_std (code, pos, 0, STK_BASE,
4746 S390_FLOAT_SAVE_OFFSET+pos*sizeof(double));
4748 s390_stm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
4751 if (cfg->flags & MONO_CFG_HAS_ALLOCA) {
4752 cfg->used_int_regs |= 1 << 11;
4755 alloc_size = cfg->stack_offset;
4757 cfg->stack_usage = alloc_size;
4758 s390_lr (code, s390_r11, STK_BASE);
4759 if (s390_is_imm16 (-alloc_size)) {
4760 s390_ahi (code, STK_BASE, -alloc_size);
4762 int stackSize = alloc_size;
4763 while (stackSize > 32767) {
4764 s390_ahi (code, STK_BASE, -32767);
4767 s390_ahi (code, STK_BASE, -stackSize);
4769 s390_st (code, s390_r11, 0, STK_BASE, 0);
4771 if (cfg->frame_reg != STK_BASE)
4772 s390_lr (code, s390_r11, STK_BASE);
4774 /* compute max_offset in order to use short forward jumps
4775 * we always do it on s390 because the immediate displacement
4776 * for jumps is too small
4779 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4780 MonoInst *ins = bb->code;
4781 bb->max_offset = max_offset;
4783 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
4787 max_offset += ((guint8 *)ins_spec [ins->opcode])[MONO_INST_LEN];
4792 /* load arguments allocated to register from the stack */
4793 sig = method->signature;
4796 cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
4798 if (cinfo->struct_ret) {
4799 ArgInfo *ainfo = &cinfo->ret;
4801 inst->unused = ainfo->vtsize;
4802 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4805 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
4806 ArgInfo *ainfo = cinfo->args + i;
4807 inst = cfg->varinfo [pos];
4809 if (inst->opcode == OP_REGVAR) {
4810 if (ainfo->regtype == RegTypeGeneral)
4811 s390_lr (code, inst->dreg, ainfo->reg);
4812 else if (ainfo->regtype == RegTypeFP) {
4813 if (inst->dreg != ainfo->reg) {
4814 if (ainfo->size == 4) {
4815 s390_ledbr (code, inst->dreg, ainfo->reg);
4817 s390_ldr (code, inst->dreg, ainfo->reg);
4821 else if (ainfo->regtype == RegTypeBase) {
4822 s390_lr (code, s390_r13, STK_BASE);
4823 s390_ahi (code, s390_r13, alloc_size);
4824 s390_l (code, inst->dreg, 0, s390_r13, ainfo->offset);
4826 g_assert_not_reached ();
4828 if (cfg->verbose_level > 2)
4829 g_print ("Argument %d assigned to register %s\n",
4830 pos, mono_arch_regname (inst->dreg));
4832 if (ainfo->regtype == RegTypeGeneral) {
4833 if (!((ainfo->reg >= 2) && (ainfo->reg <= 6)))
4834 g_assert_not_reached();
4835 switch (ainfo->size) {
4837 s390_stc (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4840 s390_sth (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4843 s390_stm (code, ainfo->reg, ainfo->reg + 1,
4844 inst->inst_basereg, inst->inst_offset);
4847 s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4849 } else if (ainfo->regtype == RegTypeBase) {
4850 } else if (ainfo->regtype == RegTypeFP) {
4851 if (ainfo->size == 8)
4852 s390_std (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4853 else if (ainfo->size == 4)
4854 s390_ste (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
4856 g_assert_not_reached ();
4857 } else if (ainfo->regtype == RegTypeStructByVal) {
4858 int doffset = inst->inst_offset;
4860 if (ainfo->reg != STK_BASE)
4864 s390_lr (code, s390_r13, STK_BASE);
4865 s390_ahi (code, s390_r13, alloc_size);
4867 switch (ainfo->size) {
4869 if (ainfo->reg == STK_BASE)
4870 s390_ic (code, reg, 0, s390_r13, ainfo->offset+3);
4871 s390_stc (code, reg, 0, inst->inst_basereg, doffset);
4874 if (ainfo->reg == STK_BASE)
4875 s390_lh (code, reg, 0, s390_r13, ainfo->offset+2);
4876 s390_sth (code, reg, 0, inst->inst_basereg, doffset);
4879 if (ainfo->reg == STK_BASE)
4880 s390_l (code, reg, 0, s390_r13, ainfo->offset);
4881 s390_st (code, reg, 0, inst->inst_basereg, doffset);
4884 if (ainfo->reg == STK_BASE)
4885 s390_lm (code, s390_r0, s390_r1, s390_r13, ainfo->offset);
4886 s390_stm (code, reg, reg+1, inst->inst_basereg, doffset);
4889 } else if (ainfo->regtype == RegTypeStructByAddr) {
4890 if (ainfo->reg == STK_BASE) {
4891 s390_lr (code, s390_r13, ainfo->reg);
4892 s390_ahi (code, s390_r13, alloc_size);
4893 s390_l (code, s390_r13, 0, s390_r13,
4894 ainfo->offparm + S390_MINIMAL_STACK_SIZE);
4895 code = emit_memcpy (code, abs(ainfo->vtsize),
4897 inst->inst_offset, s390_r13, 0);
4899 code = emit_memcpy (code, abs(ainfo->vtsize),
4905 g_assert_not_reached ();
4910 if (method->save_lmf) {
4911 /*---------------------------------------------------------------*/
4912 /* Preserve the parameter registers while we fix up the lmf */
4913 /*---------------------------------------------------------------*/
4914 s390_lr (code, s390_r7, s390_r2);
4915 s390_lr (code, s390_r8, s390_r3);
4916 s390_lr (code, s390_r9, s390_r4);
4917 s390_lr (code, s390_r10, s390_r5);
4919 mono_add_patch_info (cfg, code - cfg->native_code,
4920 MONO_PATCH_INFO_INTERNAL_METHOD,
4921 (gpointer)"mono_get_lmf_addr");
4922 /*---------------------------------------------------------------*/
4923 /* On return from this call r2 have the address of the &lmf */
4924 /*---------------------------------------------------------------*/
4925 s390_brasl (code, s390_r14, 0);
4927 /*---------------------------------------------------------------*/
4928 /* we build the MonoLMF structure on the stack - see mini-s390.h */
4929 /*---------------------------------------------------------------*/
4930 lmfOffset = alloc_size - sizeof(MonoLMF);
4932 s390_lr (code, s390_r13, cfg->frame_reg);
4933 s390_ahi (code, s390_r13, lmfOffset);
4935 /*---------------------------------------------------------------*/
4936 /* Set lmf.lmf_addr = jit_tls->lmf */
4937 /*---------------------------------------------------------------*/
4938 s390_st (code, s390_r2, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, lmf_addr));
4940 /*---------------------------------------------------------------*/
4941 /* Get current lmf */
4942 /*---------------------------------------------------------------*/
4943 s390_l (code, s390_r0, 0, s390_r2, 0);
4945 /*---------------------------------------------------------------*/
4946 /* Set our lmf as the current lmf */
4947 /*---------------------------------------------------------------*/
4948 s390_st (code, s390_r13, 0, s390_r2, 0);
4950 /*---------------------------------------------------------------*/
4951 /* Have our lmf.previous_lmf point to the last lmf */
4952 /*---------------------------------------------------------------*/
4953 s390_st (code, s390_r0, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, previous_lmf));
4955 /*---------------------------------------------------------------*/
4956 /* save method info */
4957 /*---------------------------------------------------------------*/
4958 s390_basr (code, s390_r1, 0);
4960 s390_word (code, method);
4961 s390_l (code, s390_r1, 0, s390_r1, 4);
4962 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, method));
4964 /*---------------------------------------------------------------*/
4965 /* save the current IP */
4966 /*---------------------------------------------------------------*/
4967 s390_lr (code, s390_r1, cfg->frame_reg);
4968 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, ebp));
4969 s390_l (code, s390_r1, 0, s390_r1, S390_RET_ADDR_OFFSET);
4970 s390_la (code, s390_r1, 0, s390_r1, 0);
4971 s390_st (code, s390_r1, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, eip));
4973 /*---------------------------------------------------------------*/
4974 /* Save general and floating point registers */
4975 /*---------------------------------------------------------------*/
4976 s390_stm (code, s390_r2, s390_r12, s390_r13, G_STRUCT_OFFSET(MonoLMF, gregs[2]));
4977 for (i = 0; i < 16; i++) {
4978 s390_std (code, i, 0, s390_r13, G_STRUCT_OFFSET(MonoLMF, fregs[i]));
4981 /*---------------------------------------------------------------*/
4982 /* Restore the parameter registers now that we've set up the lmf */
4983 /*---------------------------------------------------------------*/
4984 s390_lr (code, s390_r2, s390_r7);
4985 s390_lr (code, s390_r3, s390_r8);
4986 s390_lr (code, s390_r4, s390_r9);
4987 s390_lr (code, s390_r5, s390_r10);
4991 code = mono_arch_instrument_prolog (cfg, enter_method, code, TRUE);
4993 cfg->code_len = code - cfg->native_code;
4999 /*========================= End of Function ========================*/
5001 /*------------------------------------------------------------------*/
5003 /* Name - mono_arch_emit_epilog */
5005 /* Function - Emit the instructions for a function epilog. */
5007 /*------------------------------------------------------------------*/
5010 mono_arch_emit_epilog (MonoCompile *cfg)
5012 MonoJumpInfo *patch_info;
5013 MonoMethod *method = cfg->method;
5014 MonoMethodSignature *sig = method->signature;
5019 code = cfg->native_code + cfg->code_len;
5021 if (mono_jit_trace_calls != NULL && mono_trace_eval (method)) {
5022 code = mono_arch_instrument_epilog (cfg, leave_method, code, TRUE);
5026 if (method->save_lmf)
5027 code = restoreLMF(cfg, code);
5029 if (cfg->flags & MONO_CFG_HAS_ALLOCA)
5030 s390_l (code, STK_BASE, 0, STK_BASE, 0);
5032 code = backUpStackPtr(cfg, code);
5034 s390_lm (code, s390_r6, s390_r14, STK_BASE, S390_REG_SAVE_OFFSET);
5035 s390_br (code, s390_r14);
5037 /* add code to raise exceptions */
5038 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5039 switch (patch_info->type) {
5040 case MONO_PATCH_INFO_EXC: {
5041 /*-----------------------------------------------------*/
5042 /* Patch the branch in epilog to come here */
5043 /*-----------------------------------------------------*/
5044 s390_patch (patch_info->ip.i+cfg->native_code+2,
5045 S390_RELATIVE(code,patch_info->ip.i+cfg->native_code));
5046 /*-----------------------------------------------------*/
5047 /* Patch the parameter passed to the handler */
5048 /*-----------------------------------------------------*/
5049 s390_basr (code, s390_r13, 0);
5051 mono_add_patch_info (cfg, code - cfg->native_code,
5052 MONO_PATCH_INFO_EXC_NAME,
5053 patch_info->data.target);
5054 s390_word (code, 0);
5055 /*-----------------------------------------------------*/
5056 /* Load the return address and the parameter register */
5057 /*-----------------------------------------------------*/
5058 s390_larl (code, s390_r14, S390_RELATIVE((patch_info->ip.i +
5059 cfg->native_code + 8), code));
5060 s390_l (code, s390_r2, 0, s390_r13, 4);
5061 /*-----------------------------------------------------*/
5062 /* Reuse the current patch to set the jump */
5063 /*-----------------------------------------------------*/
5064 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5065 patch_info->data.name = "mono_arch_throw_exception_by_name";
5066 patch_info->ip.i = code - cfg->native_code;
5067 s390_jcl (code, S390_CC_UN, 0);
5076 cfg->code_len = code - cfg->native_code;
5078 g_assert (cfg->code_len < cfg->code_size);
5082 /*========================= End of Function ========================*/
5084 /*------------------------------------------------------------------*/
5086 /* Name - mono_arch_setup_jit_tls_data */
5088 /* Function - Setup the JIT's Thread Level Specific Data. */
5090 /*------------------------------------------------------------------*/
5093 mono_arch_setup_jit_tls_data (MonoJitTlsData *tls)
5095 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5096 pthread_t self = pthread_self();
5097 pthread_attr_t attr;
5098 void *stAddr = NULL;
5100 struct sigaltstack sa;
5103 if (!tls_offset_inited) {
5104 tls_offset_inited = TRUE;
5106 // lmf_tls_offset = read_tls_offset_from_method (mono_get_lmf_addr);
5107 // appdomain_tls_offset = read_tls_offset_from_method (mono_domain_get);
5108 // thread_tls_offset = read_tls_offset_from_method (mono_thread_current);
5111 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5113 /*----------------------------------------------------------*/
5114 /* Determine stack boundaries */
5115 /*----------------------------------------------------------*/
5116 if (!mono_running_on_valgrind ()) {
5117 #ifdef HAVE_PTHREAD_GETATTR_NP
5118 pthread_getattr_np( self, &attr );
5119 #elif HAVE_PTHREAD_ATTR_GET_NP
5120 pthread_attr_get_np( self, &attr );
5122 pthread_attr_getstack( &attr, &stAddr, &stSize );
5126 /*----------------------------------------------------------*/
5127 /* Setup an alternate signal stack */
5128 /*----------------------------------------------------------*/
5129 tls->stack_size = stSize;
5130 tls->signal_stack = g_malloc (SIGNAL_STACK_SIZE);
5131 tls->signal_stack_size = SIGNAL_STACK_SIZE;
5133 sa.ss_sp = tls->signal_stack;
5134 sa.ss_size = SIGNAL_STACK_SIZE;
5135 sa.ss_flags = SS_ONSTACK;
5136 sigaltstack (&sa, NULL);
5141 /*========================= End of Function ========================*/
5143 /*------------------------------------------------------------------*/
5145 /* Name - mono_arch_free_jit_tls_data */
5147 /* Function - Free tls data. */
5149 /*------------------------------------------------------------------*/
5152 mono_arch_free_jit_tls_data (MonoJitTlsData *tls)
5154 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5155 struct sigaltstack sa;
5157 sa.ss_sp = tls->signal_stack;
5158 sa.ss_size = SIGNAL_STACK_SIZE;
5159 sa.ss_flags = SS_DISABLE;
5160 sigaltstack (&sa, NULL);
5162 if (tls->signal_stack)
5163 g_free (tls->signal_stack);
5168 /*========================= End of Function ========================*/
5170 /*------------------------------------------------------------------*/
5172 /* Name - mono_arch_emit_this_vret_args */
5176 /*------------------------------------------------------------------*/
5179 mono_arch_emit_this_vret_args (MonoCompile *cfg, MonoCallInst *inst, int this_reg, int this_type, int vt_reg)
5181 int this_dreg = s390_r2;
5184 this_dreg = s390_r3;
5186 /* add the this argument */
5187 if (this_reg != -1) {
5189 MONO_INST_NEW (cfg, this, OP_SETREG);
5190 this->type = this_type;
5191 this->sreg1 = this_reg;
5192 this->dreg = this_dreg;
5193 mono_bblock_add_inst (cfg->cbb, this);
5198 MONO_INST_NEW (cfg, vtarg, OP_SETREG);
5199 vtarg->type = STACK_MP;
5200 vtarg->sreg1 = vt_reg;
5201 vtarg->dreg = s390_r2;
5202 mono_bblock_add_inst (cfg->cbb, vtarg);
5206 /*========================= End of Function ========================*/
5208 /*------------------------------------------------------------------*/
5210 /* Name - mono_arch_get_opcode_for_method */
5212 /* Function - Check for opcodes we can handle directly in */
5215 /*------------------------------------------------------------------*/
5218 mono_arch_get_opcode_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5220 if (cmethod->klass == mono_defaults.math_class) {
5221 if (strcmp (cmethod->name, "Sqrt") == 0)
5227 /*========================= End of Function ========================*/
5229 /*------------------------------------------------------------------*/
5231 /* Name - mono_arch_print_tree */
5233 /* Function - Print platform-specific opcode details. */
5235 /* Returns - 1 - opcode details have been printed */
5236 /* 0 - opcode details have not been printed */
5238 /*------------------------------------------------------------------*/
5241 mono_arch_print_tree (MonoInst *tree, int arity)
5245 switch (tree->opcode) {
5246 case OP_S390_LOADARG:
5247 case OP_S390_ARGPTR:
5248 case OP_S390_STKARG:
5249 printf ("[0x%x(%s)]", tree->inst_offset,
5250 mono_arch_regname (tree->inst_basereg));
5254 printf ("[0x%x(%d,%s),0x%x(%s)]",
5255 tree->inst_offset, tree->unused,
5256 tree->dreg, tree->inst_imm,
5260 case OP_S390_SETF4RET:
5261 printf ("[f%d,f%d]",
5262 mono_arch_regname (tree->dreg),
5263 mono_arch_regname (tree->sreg1));
5270 /*========================= End of Function ========================*/
5272 /*------------------------------------------------------------------*/
5274 /* Name - mono_arch_regalloc_cost */
5276 /* Function - Determine the cost, in the number of memory */
5277 /* references, of the action of allocating the var- */
5278 /* iable VMV into a register during global register */
5281 /* Returns - Cost */
5283 /*------------------------------------------------------------------*/
5286 mono_arch_regalloc_cost (MonoCompile *cfg, MonoMethodVar *vmv)
5292 /*========================= End of Function ========================*/
5294 /*------------------------------------------------------------------*/
5296 /* Name - mono_arch_get_domain_intrinsic */
5302 /*------------------------------------------------------------------*/
5304 MonoInst* mono_arch_get_domain_intrinsic (MonoCompile* cfg)
5309 /*========================= End of Function ========================*/
5311 /*------------------------------------------------------------------*/
5313 /* Name - mono_arch_get_thread_intrinsic */
5319 /*------------------------------------------------------------------*/
5321 MonoInst* mono_arch_get_thread_intrinsic (MonoCompile* cfg)
5326 /*========================= End of Function ========================*/