#define MAX_EXC 16
+/*----------------------------------------*/
+/* use s390_r2-s390_r5 as temp registers */
+/*----------------------------------------*/
+#define S390_CALLER_REGS (0x10fc)
+#define reg_is_freeable(r) (S390_CALLER_REGS & 1 << (r))
+
+/*----------------------------------------*/
+/* use s390_f1/s390_f3-s390_f15 as temps */
+/*----------------------------------------*/
+#define S390_CALLER_FREGS (0xfffa)
+#define freg_is_freeable(r) ((r) >= 1 && (r) <= 14)
+
#define S390_TRACE_STACK_SIZE (5*sizeof(gint32)+3*sizeof(gdouble))
#define MAX (a, b) ((a) > (b) ? (a) : (b))
guint stack_size,
local_size,
code_size,
- parm_size,
retStruct;
} size_data;
SAVE_FP
};
+typedef struct {
+ int born_in;
+ int killed_in;
+ int last_use;
+ int prev_use;
+} RegTrack;
+
typedef struct InstList InstList;
struct InstList {
typedef struct {
gint32 offset; /* offset from caller's stack */
- gint32 offparm; /* offset from callee's stack */
+ gint32 offparm; /* offset on callee's stack */
guint16 vtsize; /* in param area */
guint8 reg;
guint8 regtype; /* See RegType* */
int nargs;
guint32 stack_usage;
guint32 struct_ret;
- guint32 offStruct;
ArgInfo ret;
ArgInfo sigCookie;
ArgInfo args [1];
static void leave_method (MonoMethod *, ...);
static gboolean is_regsize_var (MonoType *);
static inline void add_general (guint *, size_data *, ArgInfo *, gboolean);
-static inline void add_stackParm (guint *, size_data *, ArgInfo *, gint);
static inline void add_float (guint *, size_data *, ArgInfo *);
static CallInfo * calculate_sizes (MonoMethodSignature *, size_data *, gboolean);
static void peephole_pass (MonoCompile *, MonoBasicBlock *);
+static int mono_spillvar_offset (MonoCompile *, int);
+static int mono_spillvar_offset_float (MonoCompile *, int);
+static void print_ins (int, MonoInst *);
+static void print_regtrack (RegTrack *, int);
+static InstList * inst_list_prepend (MonoMemPool *, InstList *, MonoInst *);
+static int get_register_force_spilling (MonoCompile *, InstList *, MonoInst *, int);
+static int get_register_spilling (MonoCompile *, InstList *, MonoInst *, guint32, int);
+static int get_float_register_spilling (MonoCompile *, InstList *, MonoInst *, guint32, int);
+static MonoInst * create_copy_ins (MonoCompile *, int, int, MonoInst *);
+static MonoInst * create_copy_ins_float (MonoCompile *, int, int, MonoInst *);
+static MonoInst * create_spilled_store (MonoCompile *, int, int, int, MonoInst *);
+static MonoInst * create_spilled_store_float (MonoCompile *, int, int, int, MonoInst *);
+static void insert_before_ins (MonoInst *, InstList *, MonoInst *);
+static int alloc_int_reg (MonoCompile *, InstList *, MonoInst *, int, guint32);
static guchar * emit_float_to_int (MonoCompile *, guchar *, int, int, int, gboolean);
static unsigned char * mono_emit_stack_alloc (guchar *, MonoInst *);
-static void mono_arch_break(void);
-gpointer mono_arch_get_lmf_addr (void);
/*========================= End of Prototypes ======================*/
static int indent_level = 0;
-static const char*const * ins_spec = s390_cpu_desc;
+static const char*const * ins_spec = s390;
static gboolean tls_offset_inited = FALSE;
lmf_tls_offset = -1,
thread_tls_offset = -1;
-pthread_key_t lmf_addr_key;
-
-gboolean lmf_addr_key_inited = FALSE;
-
#if 0
extern __thread MonoDomain *tls_appdomain;
"s390_r10", "s390_r11", "s390_r12", "s390_r13", "s390_r14",
"s390_r15"
};
-
if (reg >= 0 && reg < 16)
return rnames [reg];
- else
- return "unknown";
-}
-
-/*========================= End of Function ========================*/
-
-/*------------------------------------------------------------------*/
-/* */
-/* Name - mono_arch_fregname */
-/* */
-/* Function - Returns the name of the register specified by */
-/* the input parameter. */
-/* */
-/*------------------------------------------------------------------*/
-
-const char*
-mono_arch_fregname (int reg) {
- static const char * rnames[] = {
- "s390_f0", "s390_f1", "s390_f2", "s390_f3", "s390_f4",
- "s390_f5", "s390_f6", "s390_f7", "s390_f8", "s390_f9",
- "s390_f10", "s390_f11", "s390_f12", "s390_f13", "s390_f14",
- "s390_f15"
- };
-
- if (reg >= 0 && reg < 16)
- return rnames [reg];
- else
- return "unknown";
+ return "unknown";
}
/*========================= End of Function ========================*/
if ((obj) && (obj->vtable)) {
printf("[CLASS/OBJ:");
class = obj->vtable->klass;
- printf("%p [%p] ",obj,curParm);
-// if (class == mono_defaults.string_class) {
-// printf("[STRING:%p:%s]",
-// *obj, mono_string_to_utf8 (obj));
-// } else if (class == mono_defaults.int32_class) {
-// printf("[INT32:%p:%d]",
-// obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
-// } else
-// printf("[%s.%s:%p]",
-// class->name_space, class->name, obj);
+ if (class == mono_defaults.string_class) {
+ printf("[STRING:%p:%s]",
+ *obj, mono_string_to_utf8 (obj));
+ } else if (class == mono_defaults.int32_class) {
+ printf("[INT32:%p:%d]",
+ obj, *(gint32 *)((char *)obj + sizeof (MonoObject)));
+ } else
+ printf("[%s.%s:%p]",
+ class->name_space, class->name, obj);
printf("], ");
} else {
printf("[OBJECT:null], ");
printf("[INT8:%lld], ", *((gint64 *) (curParm)));
break;
case MONO_TYPE_R4 :
- printf("[FLOAT4:%g], ", *((double *) (curParm)));
+ printf("[FLOAT4:%f], ", *((float *) (curParm)));
break;
case MONO_TYPE_R8 :
printf("[FLOAT8:%g], ", *((double *) (curParm)));
if ((info->native_size == sizeof(float)) &&
(info->num_fields == 1) &&
(info->fields[0].field->type->type == MONO_TYPE_R4)) {
- printf("[FLOAT4:%f], ", *((float *) (curParm)));
+ printf("[FLOAT4:%f], ", *((float *) (curParm)));
break;
}
/*========================= End of Function ========================*/
-static int lc = 0;
/*------------------------------------------------------------------*/
/* */
/* Name - enter_method */
int i, oParm = 0, iParm = 0;
MonoClass *class;
MonoObject *obj;
+ MonoJitArgumentInfo *arg_info;
MonoMethodSignature *sig;
char *fname;
guint32 ip;
size_data sz;
void *curParm;
-
-lc++;
-if (lc > 50000) {
-fseek(stdout, 0L, SEEK_SET);
-lc = 0;
-}
fname = mono_method_full_name (method, TRUE);
indent (1);
printf ("ENTER: %s(", fname);
printf ("this:[NULL], ");
} else {
if (obj) {
-// class = obj->vtable->klass;
-// if (class == mono_defaults.string_class) {
-// printf ("this:[STRING:%p:%s], ",
-// obj, mono_string_to_utf8 ((MonoString *)obj));
-// } else {
-// printf ("this:%p[%s.%s], ",
-// obj, class->name_space, class->name);
-// }
-printf("this:%p, ",obj);
+ class = obj->vtable->klass;
+ if (class == mono_defaults.string_class) {
+ printf ("this:[STRING:%p:%s], ",
+ obj, mono_string_to_utf8 ((MonoString *)obj));
+ } else {
+ printf ("this:%p[%s.%s], ",
+ obj, class->name_space, class->name);
+ }
} else
printf ("this:NULL, ");
}
}
for (i = 0; i < sig->param_count; ++i) {
- ainfo = &cinfo->args[i + oParm];
+ ainfo = cinfo->args + (i + oParm);
switch (ainfo->regtype) {
case RegTypeGeneral :
decodeParm(sig->params[i], &(rParm->gr[ainfo->reg-2]), ainfo->size);
case MONO_TYPE_OBJECT: {
MonoObject *o = va_arg (ap, MonoObject *);
-// if ((o) && (o->vtable)) {
-// if (o->vtable->klass == mono_defaults.boolean_class) {
-// printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
-// } else if (o->vtable->klass == mono_defaults.int32_class) {
-// printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
-// } else if (o->vtable->klass == mono_defaults.int64_class) {
-// printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
-// } else
-// printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
-// } else
+ if ((o) && (o->vtable)) {
+ if (o->vtable->klass == mono_defaults.boolean_class) {
+ printf ("[BOOLEAN:%p:%d]", o, *((guint8 *)o + sizeof (MonoObject)));
+ } else if (o->vtable->klass == mono_defaults.int32_class) {
+ printf ("[INT32:%p:%d]", o, *((gint32 *)((char *)o + sizeof (MonoObject))));
+ } else if (o->vtable->klass == mono_defaults.int64_class) {
+ printf ("[INT64:%p:%lld]", o, *((gint64 *)((char *)o + sizeof (MonoObject))));
+ } else
+ printf ("[%s.%s:%p]", o->vtable->klass->name_space, o->vtable->klass->name, o);
+ } else
printf ("[OBJECT:%p]", o);
break;
break;
}
case MONO_TYPE_R4: {
- float f;
- f = va_arg (ap, double);
- printf ("[FLOAT4:%f]\n", f);
+ double f = va_arg (ap, double);
+ printf ("[FLOAT4:%f]\n", (float) f);
break;
}
case MONO_TYPE_R8: {
(info->num_fields == 1) &&
(info->fields[0].field->type->type == MONO_TYPE_R4)) {
double f = va_arg (ap, double);
- printf("[FLOAT4:%g]\n", (double) f);
+ printf("[FLOAT4:%f]\n", (float) f);
break;
}
MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
/* unused vars */
- if (vmv->range.first_use.abs_pos >= vmv->range.last_use.abs_pos)
+ if (vmv->range.first_use.abs_pos > vmv->range.last_use.abs_pos)
continue;
- if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) ||
- (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
+ if (ins->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT) || (ins->opcode != OP_LOCAL && ins->opcode != OP_ARG))
continue;
/* we can only allocate 32 bit values */
ainfo->reg = STK_BASE;
ainfo->regtype = RegTypeBase;
sz->stack_size += sizeof(int);
- sz->local_size += sizeof(int);
sz->code_size += 12;
} else {
ainfo->reg = *gr;
ainfo->reg = STK_BASE;
ainfo->regtype = RegTypeBase;
sz->stack_size += sizeof(long long);
- sz->local_size += sizeof(long long);
sz->code_size += 10;
} else {
ainfo->reg = *gr;
/*========================= End of Function ========================*/
-/*------------------------------------------------------------------*/
-/* */
-/* Name - add_stackParm */
-/* */
-/* Function - Determine code and stack size incremements for a */
-/* parameter. */
-/* */
-/*------------------------------------------------------------------*/
-
-static void inline
-add_stackParm (guint *gr, size_data *sz, ArgInfo *ainfo, gint size)
-{
- if (*gr > S390_LAST_ARG_REG) {
- sz->stack_size = S390_ALIGN(sz->stack_size, sizeof(long));
- ainfo->offset = sz->stack_size;
- ainfo->reg = STK_BASE;
-// sz->parm_size += sizeof(gpointer);
- } else {
- ainfo->reg = *gr;
-// sz->parm_size += size;
- }
- (*gr) ++;
- ainfo->offparm = sz->parm_size;
- ainfo->size = sizeof(gpointer);
- ainfo->regtype = RegTypeStructByAddr;
- ainfo->vtsize = size;
- sz->local_size += (size + sizeof(gpointer));
- sz->parm_size += size;
-}
-
-/*========================= End of Function ========================*/
-
/*------------------------------------------------------------------*/
/* */
/* Name - add_float */
ainfo->regtype = RegTypeBase;
sz->code_size += 4;
sz->stack_size += ainfo->size;
- sz->local_size += ainfo->size;
}
}
gr = s390_r2;
nParm = 0;
cinfo->struct_ret = 0;
- cinfo->offStruct = 0;
sz->retStruct = 0;
sz->stack_size = S390_MINIMAL_STACK_SIZE;
sz->code_size = 0;
- sz->parm_size = 0;
sz->local_size = 0;
/*----------------------------------------------------------*/
cinfo->struct_ret = 1;
cinfo->ret.size = size;
cinfo->ret.vtsize = size;
+ cinfo->ret.offset = sz->stack_size;
+ sz->stack_size += S390_ALIGN(size, align);
gr++;
break;
}
cinfo->struct_ret = 1;
cinfo->ret.size = size;
cinfo->ret.vtsize = size;
+ cinfo->ret.offset = sz->stack_size;
+ sz->stack_size += S390_ALIGN(size, align);
gr++;
break;
case MONO_TYPE_VOID:
nParm++;
continue;
}
-
simpletype = mono_type_get_underlying_type(sig->params [i])->type;
switch (simpletype) {
case MONO_TYPE_BOOLEAN:
cinfo->args[nParm].vtsize = 0;
cinfo->args[nParm].size = 0;
+ cinfo->args[nParm].offparm = sz->local_size;
switch (size) {
/*----------------------------------*/
sz->local_size += sizeof(long);
break;
default:
- add_stackParm(&gr, sz, cinfo->args+nParm, size);
+ add_general(&gr, sz, cinfo->args+nParm, TRUE);
+ cinfo->args[nParm].size = sizeof(int);
+ cinfo->args[nParm].regtype = RegTypeStructByAddr;
+ cinfo->args[nParm].vtsize = size;
+ sz->code_size += 40;
+ sz->local_size += size;
+ if (cinfo->args[nParm].reg == STK_BASE)
+ sz->local_size += sizeof(gpointer);
nParm++;
}
}
cinfo->args[nParm].vtsize = 0;
cinfo->args[nParm].size = 0;
+ cinfo->args[nParm].offparm = sz->local_size;
switch (size) {
/*----------------------------------*/
sz->local_size += sizeof(long);
break;
default:
- add_stackParm(&gr, sz, cinfo->args+nParm, size);
+ add_general(&gr, sz, cinfo->args+nParm, TRUE);
+ cinfo->args[nParm].size = sizeof(int);
+ cinfo->args[nParm].regtype = RegTypeStructByAddr;
+ cinfo->args[nParm].vtsize = size;
+ sz->code_size += 40;
+ sz->local_size += size;
+ if (cinfo->args[nParm].reg == STK_BASE)
+ sz->local_size += sizeof(gpointer);
nParm++;
}
}
}
}
- /*----------------------------------------------------------*/
- /* If we are passing a structure back then if it won't be */
- /* in a register(s) then we make room at the end of the */
- /* parameters that may have been placed on the stack */
- /*----------------------------------------------------------*/
- if (cinfo->struct_ret) {
- cinfo->ret.offset = sz->stack_size;
- switch (cinfo->ret.size) {
- case 0:
- case 1:
- case 2:
- case 4:
- case 8:
- break;
- default:
- sz->stack_size += S390_ALIGN(cinfo->ret.size, align);
- }
- }
-
- cinfo->offStruct = sz->stack_size;
-// cinfo->stack_usage = S390_ALIGN(sz->stack_size+sz->local_size,
-// S390_STACK_ALIGNMENT);
+ cinfo->stack_usage = S390_ALIGN(sz->stack_size+sz->local_size,
+ S390_STACK_ALIGNMENT);
return (cinfo);
}
if (inst->opcode != OP_REGVAR) {
switch (cinfo->args[iParm].regtype) {
case RegTypeStructByAddr :
- if (cinfo->args[iParm].reg == STK_BASE) {
inst->opcode = OP_S390_LOADARG;
inst->inst_basereg = frame_reg;
size = abs(cinfo->args[iParm].vtsize);
- offset = S390_ALIGN(offset, sizeof(long));
+ offset = S390_ALIGN(offset, size);
inst->inst_offset = offset;
- } else {
- inst->opcode = OP_S390_ARGREG;
- inst->inst_basereg = frame_reg;
- size = sizeof(gpointer);
- offset = S390_ALIGN(offset, size);
- inst->inst_offset = offset;
- }
break;
case RegTypeStructByVal :
inst->opcode = OP_S390_ARGPTR;
/* includes pushing, moving argments to the correct */
/* etc. */
/* */
+/* Note - FIXME: We need an alignment solution for */
+/* enter_method and mono_arch_call_opcode, currently */
+/* alignment in mono_arch_call_opcode is computed */
+/* without arch_get_argument_info. */
+/* */
/*------------------------------------------------------------------*/
MonoCallInst*
MonoCallInst *call, int is_virtual) {
MonoInst *arg, *in;
MonoMethodSignature *sig;
- MonoS390ArgParm *argParm;
int i, n, lParamArea;
CallInfo *cinfo;
ArgInfo *ainfo;
cinfo = calculate_sizes (sig, &sz, sig->pinvoke);
-// call->stack_usage = cinfo->stack_usage;
-// lParamArea = MAX((cinfo->stack_usage - S390_MINIMAL_STACK_SIZE), 0);
- call->stack_usage = MAX((sz.stack_size + sz.local_size), call->stack_usage);
- lParamArea = MAX((call->stack_usage - S390_MINIMAL_STACK_SIZE), 0);
+ call->stack_usage = cinfo->stack_usage;
+ lParamArea = MAX((cinfo->stack_usage - S390_MINIMAL_STACK_SIZE), 0);
cfg->param_area = MAX (((signed) cfg->param_area), lParamArea);
cfg->flags |= MONO_CFG_HAS_CALLS;
MONO_INST_NEW (cfg, sigArg, OP_ICONST);
sigArg->inst_p0 = call->signature;
- MONO_INST_NEW (cfg, arg, OP_OUTARG_MEMBASE);
- arg->inst_left = sigArg;
- arg->inst_right = (MonoInst *) call;
- argParm = g_malloc(sizeof(MonoS390ArgParm));
- argParm->size = ainfo->size;
- argParm->offset = cinfo->sigCookie.offset;
- arg->unused = (gint32) argParm;
- call->used_iregs |= 1 << ainfo->reg;
+ MONO_INST_NEW (cfg, arg, OP_OUTARG);
+ arg->inst_imm = cinfo->sigCookie.offset;
+ arg->inst_left = sigArg;
arg->next = call->out_args;
call->out_args = arg;
} else {
MONO_INST_NEW (cfg, arg, OP_OUTARG);
in = call->args [i];
- arg->cil_code = in->cil_code;
- arg->inst_left = in;
- arg->type = in->type;
+ arg->cil_code = in->cil_code;
+ arg->inst_left = in;
+ arg->type = in->type;
/* prepend, we'll need to reverse them later */
- arg->next = call->out_args;
- call->out_args = arg;
- arg->inst_right = (MonoInst *) call;
+ arg->next = call->out_args;
+ call->out_args = arg;
if (ainfo->regtype == RegTypeGeneral) {
arg->unused = ainfo->reg;
call->used_iregs |= 1 << ainfo->reg;
call->used_iregs |= 1 << (ainfo->reg + 1);
} else if (ainfo->regtype == RegTypeStructByAddr) {
call->used_iregs |= 1 << ainfo->reg;
- arg->sreg1 = ainfo->reg;
- arg->opcode = OP_OUTARG_VT;
- argParm = g_malloc(sizeof(MonoS390ArgParm));
- argParm->size = -ainfo->vtsize;
- argParm->offset = ainfo->offset;
- argParm->offPrm = ainfo->offparm + cinfo->offStruct;
- arg->unused = (gint32) argParm;
+ arg->sreg1 = ainfo->reg;
+ arg->opcode = OP_OUTARG_VT;
+ arg->unused = -ainfo->vtsize;
+ arg->inst_imm = ainfo->offset;
+ arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
} else if (ainfo->regtype == RegTypeStructByVal) {
if (ainfo->reg != STK_BASE) {
switch (ainfo->size) {
call->used_iregs |= 1 << ainfo->reg;
}
}
- arg->sreg1 = ainfo->reg;
- arg->opcode = OP_OUTARG_VT;
- argParm = g_malloc(sizeof(MonoS390ArgParm));
- argParm->size = ainfo->size;
- argParm->offset = ainfo->offset;
- argParm->offPrm = ainfo->offparm + cinfo->offStruct;
- arg->unused = (gint32) argParm;
+ arg->sreg1 = ainfo->reg;
+ arg->opcode = OP_OUTARG_VT;
+ arg->unused = ainfo->size;
+ arg->inst_imm = ainfo->offset;
+ arg->sreg2 = ainfo->offparm + S390_MINIMAL_STACK_SIZE;
} else if (ainfo->regtype == RegTypeBase) {
- arg->opcode = OP_OUTARG_MEMBASE;
- arg->sreg1 = ainfo->reg;
- argParm = g_malloc(sizeof(MonoS390ArgParm));
- argParm->size = ainfo->size;
- argParm->offset = ainfo->offset;
- arg->unused = (gint32) argParm;
- call->used_iregs |= 1 << ainfo->reg;
+ arg->opcode = OP_OUTARG;
+ arg->unused = ainfo->reg | (ainfo->size << 8);
+ arg->inst_imm = ainfo->offset;
+ call->used_fregs |= 1 << ainfo->reg;
} else if (ainfo->regtype == RegTypeFP) {
arg->unused = ainfo->reg;
call->used_fregs |= 1 << ainfo->reg;
- if (ainfo->size == 4)
+ if (ainfo->size == 4) {
+ MonoInst *conv;
arg->opcode = OP_OUTARG_R4;
+ MONO_INST_NEW (cfg, conv, OP_FCONV_TO_R4);
+ conv->inst_left = arg->inst_left;
+ arg->inst_left = conv;
+ }
else
arg->opcode = OP_OUTARG_R8;
} else {
mono_arch_instrument_prolog (MonoCompile *cfg, void *func, void *p,
gboolean enable_arguments)
{
- guchar *code = p;
+ guchar *code = p;
int parmOffset,
fpOffset;
ins = ins->next;
continue;
} else {
+ //static int c = 0; printf ("MATCHX %s %d\n", cfg->method->name,c++);
ins->opcode = OP_MOVE;
ins->sreg1 = last_ins->sreg1;
}
/*========================= End of Function ========================*/
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_spillvar_offset */
+/* */
+/* Function - Returns the offset used by spillvar. It allocates */
+/* a new spill variable if necessary. */
+/* */
+/*------------------------------------------------------------------*/
+
+static int
+mono_spillvar_offset (MonoCompile *cfg, int spillvar)
+{
+ MonoSpillInfo **si, *info;
+ int i = 0;
+
+ si = &cfg->spill_info;
+
+ while (i <= spillvar) {
+
+ if (!*si) {
+ *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
+ info->next = NULL;
+ info->offset = cfg->stack_offset;
+ cfg->stack_offset += sizeof (gpointer);
+ }
+
+ if (i == spillvar)
+ return (*si)->offset;
+
+ i++;
+ si = &(*si)->next;
+ }
+
+ g_assert_not_reached ();
+ return 0;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - mono_spillvar_offset_float */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
+static int
+mono_spillvar_offset_float (MonoCompile *cfg, int spillvar)
+{
+ MonoSpillInfo **si, *info;
+ int i = 0;
+
+ si = &cfg->spill_info_float;
+
+ while (i <= spillvar) {
+
+ if (!*si) {
+ *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
+ info->next = NULL;
+ cfg->stack_offset = S390_ALIGN(cfg->stack_offset, S390_STACK_ALIGNMENT);
+ info->offset = cfg->stack_offset;
+ cfg->stack_offset += sizeof (double);
+ }
+
+ if (i == spillvar)
+ return (*si)->offset;
+
+ i++;
+ si = &(*si)->next;
+ }
+
+ g_assert_not_reached ();
+ return 0;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - print_ins */
+/* */
+/* Function - Decode and print the instruction for tracing. */
+/* */
+/*------------------------------------------------------------------*/
+
+static void
+print_ins (int i, MonoInst *ins)
+{
+ const char *spec = ins_spec [ins->opcode];
+ g_print ("\t%-2d %s", i, mono_inst_name (ins->opcode));
+ if (spec [MONO_INST_DEST]) {
+ if (ins->dreg >= MONO_MAX_IREGS)
+ g_print (" R%d <-", ins->dreg);
+ else
+ g_print (" %s <-", mono_arch_regname (ins->dreg));
+ }
+ if (spec [MONO_INST_SRC1]) {
+ if (ins->sreg1 >= MONO_MAX_IREGS)
+ g_print (" R%d", ins->sreg1);
+ else
+ g_print (" %s", mono_arch_regname (ins->sreg1));
+ }
+ if (spec [MONO_INST_SRC2]) {
+ if (ins->sreg2 >= MONO_MAX_IREGS)
+ g_print (" R%d", ins->sreg2);
+ else
+ g_print (" %s", mono_arch_regname (ins->sreg2));
+ }
+ if (spec [MONO_INST_CLOB])
+ g_print (" clobbers: %c", spec [MONO_INST_CLOB]);
+ g_print ("\n");
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - print_regtrack. */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
+static void
+print_regtrack (RegTrack *t, int num)
+{
+ int i;
+ char buf [32];
+ const char *r;
+
+ for (i = 0; i < num; ++i) {
+ if (!t [i].born_in)
+ continue;
+ if (i >= MONO_MAX_IREGS) {
+ g_snprintf (buf, sizeof(buf), "R%d", i);
+ r = buf;
+ } else
+ r = mono_arch_regname (i);
+ g_print ("liveness: %s [%d - %d]\n", r, t [i].born_in, t[i].last_use);
+ }
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - inst_list_prepend */
+/* */
+/* Function - Prepend an instruction to the list. */
+/* */
+/*------------------------------------------------------------------*/
+
+static inline InstList*
+inst_list_prepend (MonoMemPool *pool, InstList *list, MonoInst *data)
+{
+ InstList *item = mono_mempool_alloc (pool, sizeof (InstList));
+ item->data = data;
+ item->prev = NULL;
+ item->next = list;
+ if (list)
+ list->prev = item;
+ return item;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - get_register_force_spilling */
+/* */
+/* Function - Force the spilling of the variable in the */
+/* symbolic register 'reg'. */
+/* */
+/*------------------------------------------------------------------*/
+
+static int
+get_register_force_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, int reg)
+{
+ MonoInst *load;
+ int i, sel, spill;
+
+ sel = cfg->rs->iassign [reg];
+ i = reg;
+ spill = ++cfg->spill_count;
+ cfg->rs->iassign [i] = -spill - 1;
+ mono_regstate_free_int (cfg->rs, sel);
+ /*----------------------------------------------------------*/
+ /* we need to create a spill var and insert a load to sel */
+ /* after the current instruction */
+ /*----------------------------------------------------------*/
+ MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
+ load->dreg = sel;
+ load->inst_basereg = cfg->frame_reg;
+ load->inst_offset = mono_spillvar_offset (cfg, spill);
+ if (item->prev) {
+ while (ins->next != item->prev->data)
+ ins = ins->next;
+ }
+ load->next = ins->next;
+ ins->next = load;
+ DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n",
+ spill, load->inst_offset, i, mono_arch_regname (sel)));
+ i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
+ g_assert (i == sel);
+
+ return sel;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - get_register_spilling */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
+static int
+get_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
+{
+ MonoInst *load;
+ int i, sel, spill;
+
+ 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));
+ /* exclude the registers in the current instruction */
+ if (reg != ins->sreg1 &&
+ (reg_is_freeable (ins->sreg1) ||
+ (ins->sreg1 >= MONO_MAX_IREGS &&
+ cfg->rs->iassign [ins->sreg1] >= 0))) {
+ if (ins->sreg1 >= MONO_MAX_IREGS)
+ regmask &= ~ (1 << cfg->rs->iassign [ins->sreg1]);
+ else
+ regmask &= ~ (1 << ins->sreg1);
+ DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
+ }
+ if (reg != ins->sreg2 &&
+ (reg_is_freeable (ins->sreg2) ||
+ (ins->sreg2 >= MONO_MAX_IREGS &&
+ cfg->rs->iassign [ins->sreg2] >= 0))) {
+ if (ins->sreg2 >= MONO_MAX_IREGS)
+ regmask &= ~ (1 << cfg->rs->iassign [ins->sreg2]);
+ else
+ regmask &= ~ (1 << ins->sreg2);
+ DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
+ }
+ if (reg != ins->dreg && reg_is_freeable (ins->dreg)) {
+ regmask &= ~ (1 << ins->dreg);
+ DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
+ }
+
+ DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
+ g_assert (regmask); /* need at least a register we can free */
+ sel = -1;
+ /* we should track prev_use and spill the register that's farther */
+ for (i = 0; i < MONO_MAX_IREGS; ++i) {
+ if (regmask & (1 << i)) {
+ sel = i;
+ DEBUG (g_print ("selected register %s has assignment %d\n", mono_arch_regname (sel), cfg->rs->iassign [sel]));
+ break;
+ }
+ }
+ i = cfg->rs->isymbolic [sel];
+ spill = ++cfg->spill_count;
+ cfg->rs->iassign [i] = -spill - 1;
+ mono_regstate_free_int (cfg->rs, sel);
+ /* we need to create a spill var and insert a load to sel after the current instruction */
+ MONO_INST_NEW (cfg, load, OP_LOAD_MEMBASE);
+ load->dreg = sel;
+ load->inst_basereg = cfg->frame_reg;
+ load->inst_offset = mono_spillvar_offset (cfg, spill);
+ if (item->prev) {
+ while (ins->next != item->prev->data)
+ ins = ins->next;
+ }
+ load->next = ins->next;
+ ins->next = load;
+ DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
+ i = mono_regstate_alloc_int (cfg->rs, 1 << sel);
+ g_assert (i == sel);
+
+ return sel;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - get_float_register_spilling */
+/* */
+/* Function - */
+/* */
+/*------------------------------------------------------------------*/
+
+static int
+get_float_register_spilling (MonoCompile *cfg, InstList *item, MonoInst *ins, guint32 regmask, int reg)
+{
+ MonoInst *load;
+ int i, sel, spill;
+
+ 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));
+ /* exclude the registers in the current instruction */
+ if (reg != ins->sreg1 &&
+ (freg_is_freeable (ins->sreg1) ||
+ (ins->sreg1 >= MONO_MAX_FREGS &&
+ cfg->rs->fassign [ins->sreg1] >= 0))) {
+ if (ins->sreg1 >= MONO_MAX_FREGS)
+ regmask &= ~ (1 << cfg->rs->fassign [ins->sreg1]);
+ else
+ regmask &= ~ (1 << ins->sreg1);
+ DEBUG (g_print ("excluding sreg1 %s\n", mono_arch_regname (ins->sreg1)));
+ }
+ if (reg != ins->sreg2 &&
+ (freg_is_freeable (ins->sreg2) ||
+ (ins->sreg2 >= MONO_MAX_FREGS &&
+ cfg->rs->fassign [ins->sreg2] >= 0))) {
+ if (ins->sreg2 >= MONO_MAX_FREGS)
+ regmask &= ~ (1 << cfg->rs->fassign [ins->sreg2]);
+ else
+ regmask &= ~ (1 << ins->sreg2);
+ DEBUG (g_print ("excluding sreg2 %s %d\n", mono_arch_regname (ins->sreg2), ins->sreg2));
+ }
+ if (reg != ins->dreg && freg_is_freeable (ins->dreg)) {
+ regmask &= ~ (1 << ins->dreg);
+ DEBUG (g_print ("excluding dreg %s\n", mono_arch_regname (ins->dreg)));
+ }
+
+ DEBUG (g_print ("available regmask: 0x%08x\n", regmask));
+ g_assert (regmask); /* need at least a register we can free */
+ sel = -1;
+ /* we should track prev_use and spill the register that's farther */
+ for (i = 0; i < MONO_MAX_FREGS; ++i) {
+ if (regmask & (1 << i)) {
+ sel = i;
+ DEBUG (g_print ("selected register %s has assignment %d\n",
+ mono_arch_regname (sel), cfg->rs->fassign [sel]));
+ break;
+ }
+ }
+ i = cfg->rs->fsymbolic [sel];
+ spill = ++cfg->spill_count;
+ cfg->rs->fassign [i] = -spill - 1;
+ mono_regstate_free_float(cfg->rs, sel);
+ /* we need to create a spill var and insert a load to sel after the current instruction */
+ MONO_INST_NEW (cfg, load, OP_LOADR8_MEMBASE);
+ load->dreg = sel;
+ load->inst_basereg = cfg->frame_reg;
+ load->inst_offset = mono_spillvar_offset_float (cfg, spill);
+ if (item->prev) {
+ while (ins->next != item->prev->data)
+ ins = ins->next;
+ }
+ load->next = ins->next;
+ ins->next = load;
+ DEBUG (g_print ("SPILLED LOAD (%d at 0x%08x(%%sp)) R%d (freed %s)\n", spill, load->inst_offset, i, mono_arch_regname (sel)));
+ i = mono_regstate_alloc_float (cfg->rs, 1 << sel);
+ g_assert (i == sel);
+
+ return sel;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - create_copy_ins */
+/* */
+/* Function - Create an instruction to copy from reg to reg. */
+/* */
+/*------------------------------------------------------------------*/
+
+static MonoInst*
+create_copy_ins (MonoCompile *cfg, int dest, int src, MonoInst *ins)
+{
+ MonoInst *copy;
+ MONO_INST_NEW (cfg, copy, OP_MOVE);
+ copy->dreg = dest;
+ copy->sreg1 = src;
+ if (ins) {
+ copy->next = ins->next;
+ ins->next = copy;
+ }
+ DEBUG (g_print ("\tforced copy from %s to %s\n",
+ mono_arch_regname (src), mono_arch_regname (dest)));
+ return copy;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - create_copy_ins_float */
+/* */
+/* Function - Create an instruction to copy from float reg to */
+/* float reg. */
+/* */
+/*------------------------------------------------------------------*/
+
+static MonoInst*
+create_copy_ins_float (MonoCompile *cfg, int dest, int src, MonoInst *ins)
+{
+ MonoInst *copy;
+ MONO_INST_NEW (cfg, copy, OP_FMOVE);
+ copy->dreg = dest;
+ copy->sreg1 = src;
+ if (ins) {
+ copy->next = ins->next;
+ ins->next = copy;
+ }
+ DEBUG (g_print ("\tforced copy from %s to %s\n",
+ mono_arch_regname (src), mono_arch_regname (dest)));
+ return copy;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - create_spilled_store */
+/* */
+/* Function - Spill register to storage. */
+/* */
+/*------------------------------------------------------------------*/
+
+static MonoInst*
+create_spilled_store (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
+{
+ MonoInst *store;
+ MONO_INST_NEW (cfg, store, OP_STORE_MEMBASE_REG);
+ store->sreg1 = reg;
+ store->inst_destbasereg = cfg->frame_reg;
+ store->inst_offset = mono_spillvar_offset (cfg, spill);
+ if (ins) {
+ store->next = ins->next;
+ ins->next = store;
+ }
+ DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
+ spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
+ return store;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - create_spilled_store_float */
+/* */
+/* Function - Spill floating point register to storage. */
+/* */
+/*------------------------------------------------------------------*/
+
+static MonoInst*
+create_spilled_store_float (MonoCompile *cfg, int spill, int reg, int prev_reg, MonoInst *ins)
+{
+ MonoInst *store;
+ MONO_INST_NEW (cfg, store, OP_STORER8_MEMBASE_REG);
+ store->sreg1 = reg;
+ store->inst_destbasereg = cfg->frame_reg;
+ store->inst_offset = mono_spillvar_offset_float (cfg, spill);
+ if (ins) {
+ store->next = ins->next;
+ ins->next = store;
+ }
+ DEBUG (g_print ("SPILLED STORE (%d at 0x%08x(%%sp)) R%d (from %s)\n",
+ spill, store->inst_offset, prev_reg, mono_arch_regname (reg)));
+ return store;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - insert_before_ins */
+/* */
+/* Function - Insert an instruction before another. */
+/* */
+/*------------------------------------------------------------------*/
+
+static void
+insert_before_ins (MonoInst *ins, InstList *item, MonoInst* to_insert)
+{
+ MonoInst *prev;
+ g_assert (item->next);
+ prev = item->next->data;
+
+ while (prev->next != ins)
+ prev = prev->next;
+ to_insert->next = ins;
+ prev->next = to_insert;
+ /*
+ * needed otherwise in the next instruction we can add an ins to the
+ * end and that would get past this instruction.
+ */
+ item->data = to_insert;
+}
+
+/*========================= End of Function ========================*/
+
+/*------------------------------------------------------------------*/
+/* */
+/* Name - alloc_int_reg */
+/* */
+/* Function - Allocate a general register. */
+/* */
+/*------------------------------------------------------------------*/
+
+static int
+alloc_int_reg (MonoCompile *cfg, InstList *curinst, MonoInst *ins, int sym_reg, guint32 allow_mask)
+{
+ int val = cfg->rs->iassign [sym_reg];
+ DEBUG (g_print ("Allocating a general register for %d (%d) with mask %08x\n",val,sym_reg,allow_mask));
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_int (cfg->rs, allow_mask);
+ if (val < 0)
+ val = get_register_spilling (cfg, curinst, ins, allow_mask, sym_reg);
+ cfg->rs->iassign [sym_reg] = val;
+ /* add option to store before the instruction for src registers */
+ if (spill)
+ create_spilled_store (cfg, spill, val, sym_reg, ins);
+ }
+ DEBUG (g_print ("Allocated %d for %d\n",val,sym_reg));
+ cfg->rs->isymbolic [val] = sym_reg;
+ return val;
+}
+
+/*========================= End of Function ========================*/
+
/*------------------------------------------------------------------*/
/* */
/* Name - mono_arch_local_regalloc. */
void
mono_arch_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb)
{
- mono_local_regalloc(cfg, bb);
+ MonoInst *ins;
+ MonoRegState *rs = cfg->rs;
+ int i, val;
+ RegTrack *reginfo, *reginfof;
+ RegTrack *reginfo1, *reginfo2, *reginfod;
+ InstList *tmp, *reversed = NULL;
+ const char *spec;
+ guint32 src1_mask, src2_mask, dest_mask;
+ guint32 cur_iregs, cur_fregs;
+
+ if (!bb->code)
+ return;
+ rs->next_vireg = bb->max_ireg;
+ rs->next_vfreg = bb->max_freg;
+ mono_regstate_assign (rs);
+ reginfo = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vireg);
+ reginfof = mono_mempool_alloc0 (cfg->mempool, sizeof (RegTrack) * rs->next_vfreg);
+ rs->ifree_mask = S390_CALLER_REGS;
+ rs->ffree_mask = S390_CALLER_FREGS;
+
+ ins = bb->code;
+ i = 1;
+ DEBUG (g_print ("LOCAL regalloc: basic block: %d\n", bb->block_num));
+ /* forward pass on the instructions to collect register liveness info */
+ while (ins) {
+ spec = ins_spec [ins->opcode];
+ DEBUG (print_ins (i, ins));
+// if (spec [MONO_INST_CLOB] == 'c') {
+// MonoCallInst * call = (MonoCallInst*)ins;
+// int j;
+// }
+ if (spec [MONO_INST_SRC1]) {
+ if (spec [MONO_INST_SRC1] == 'f')
+ reginfo1 = reginfof;
+ else
+ reginfo1 = reginfo;
+ reginfo1 [ins->sreg1].prev_use = reginfo1 [ins->sreg1].last_use;
+ reginfo1 [ins->sreg1].last_use = i;
+ } else {
+ ins->sreg1 = -1;
+ }
+ if (spec [MONO_INST_SRC2]) {
+ if (spec [MONO_INST_SRC2] == 'f')
+ reginfo2 = reginfof;
+ else
+ reginfo2 = reginfo;
+ reginfo2 [ins->sreg2].prev_use = reginfo2 [ins->sreg2].last_use;
+ reginfo2 [ins->sreg2].last_use = i;
+ } else {
+ ins->sreg2 = -1;
+ }
+ if (spec [MONO_INST_DEST]) {
+ if (spec [MONO_INST_DEST] == 'f')
+ reginfod = reginfof;
+ else
+ reginfod = reginfo;
+ if (spec [MONO_INST_DEST] != 'b') /* it's not just a base register */
+ reginfod [ins->dreg].killed_in = i;
+ reginfod [ins->dreg].prev_use = reginfod [ins->dreg].last_use;
+ reginfod [ins->dreg].last_use = i;
+ if (reginfod [ins->dreg].born_in == 0 || reginfod [ins->dreg].born_in > i)
+ reginfod [ins->dreg].born_in = i;
+ if (spec [MONO_INST_DEST] == 'l') {
+ /* result in R2/R3, the virtual register is allocated sequentially */
+ reginfod [ins->dreg + 1].prev_use = reginfod [ins->dreg + 1].last_use;
+ reginfod [ins->dreg + 1].last_use = i;
+ if (reginfod [ins->dreg + 1].born_in == 0 || reginfod [ins->dreg + 1].born_in > i)
+ reginfod [ins->dreg + 1].born_in = i;
+ }
+ } else {
+ ins->dreg = -1;
+ }
+ reversed = inst_list_prepend (cfg->mempool, reversed, ins);
+ ++i;
+ ins = ins->next;
+ }
+
+ cur_iregs = S390_CALLER_REGS;
+ cur_fregs = S390_CALLER_FREGS;
+
+ DEBUG (print_regtrack (reginfo, rs->next_vireg));
+ DEBUG (print_regtrack (reginfof, rs->next_vfreg));
+ tmp = reversed;
+ while (tmp) {
+ int prev_dreg, prev_sreg1, prev_sreg2;
+ --i;
+ ins = tmp->data;
+ spec = ins_spec [ins->opcode];
+ DEBUG (g_print ("processing:"));
+ DEBUG (print_ins (i, ins));
+ /* make the register available for allocation: FIXME add fp reg */
+ if (ins->opcode == OP_SETREG || ins->opcode == OP_SETREGIMM) {
+ cur_iregs |= 1 << ins->dreg;
+ DEBUG (g_print ("adding %d to cur_iregs\n", ins->dreg));
+ } else if (ins->opcode == OP_SETFREG) {
+ cur_fregs |= 1 << ins->dreg;
+ DEBUG (g_print ("adding %d to cur_fregs\n", ins->dreg));
+ } else if (spec [MONO_INST_CLOB] == 'c') {
+ MonoCallInst *cinst = (MonoCallInst*)ins;
+ DEBUG (g_print ("excluding regs 0x%x from cur_iregs (0x%x)\n",
+ cinst->used_iregs, cur_iregs));
+ DEBUG (g_print ("excluding fpregs 0x%x from cur_fregs (0x%x)\n",
+ cinst->used_fregs, cur_fregs));
+ cur_iregs &= ~cinst->used_iregs;
+ cur_fregs &= ~cinst->used_fregs;
+ DEBUG (g_print ("available cur_iregs: 0x%x\n", cur_iregs));
+ DEBUG (g_print ("available cur_fregs: 0x%x\n", cur_fregs));
+ /*------------------------------------------------------------*/
+ /* registers used by the calling convention are excluded from */
+ /* allocation: they will be selectively enabled when they are */
+ /* assigned by the special SETREG opcodes. */
+ /*------------------------------------------------------------*/
+ }
+ dest_mask = src1_mask = src2_mask = cur_iregs;
+ /*------------------------------------------------------*/
+ /* update for use with FP regs... */
+ /*------------------------------------------------------*/
+ if (spec [MONO_INST_DEST] == 'f') {
+ dest_mask = cur_fregs;
+ if (ins->dreg >= MONO_MAX_FREGS) {
+ val = rs->fassign [ins->dreg];
+ prev_dreg = ins->dreg;
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_float (rs, dest_mask);
+ if (val < 0)
+ val = get_float_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
+ rs->fassign [ins->dreg] = val;
+ if (spill)
+ create_spilled_store_float (cfg, spill, val, prev_dreg, ins);
+ }
+ DEBUG (g_print ("\tassigned dreg %s to dest R%d\n",
+ mono_arch_regname (val), ins->dreg));
+ rs->fsymbolic [val] = prev_dreg;
+ ins->dreg = val;
+ if (spec [MONO_INST_CLOB] == 'c' && ins->dreg != s390_f0) {
+ /* this instruction only outputs to s390_f0, need to copy */
+ create_copy_ins_float (cfg, ins->dreg, s390_f0, ins);
+ }
+ } else {
+ prev_dreg = -1;
+ }
+ if (freg_is_freeable (ins->dreg) && prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i || !(cur_fregs & (1 << ins->dreg)))) {
+ DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
+ mono_regstate_free_float (rs, ins->dreg);
+ }
+ } else if (ins->dreg >= MONO_MAX_IREGS) {
+ val = rs->iassign [ins->dreg];
+ prev_dreg = ins->dreg;
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_int (rs, dest_mask);
+ if (val < 0)
+ val = get_register_spilling (cfg, tmp, ins, dest_mask, ins->dreg);
+ rs->iassign [ins->dreg] = val;
+ if (spill)
+ create_spilled_store (cfg, spill, val, prev_dreg, ins);
+ }
+ DEBUG (g_print ("\tassigned dreg %s to dest R%d (prev: R%d)\n",
+ mono_arch_regname (val), ins->dreg, prev_dreg));
+ rs->isymbolic [val] = prev_dreg;
+ ins->dreg = val;
+ if (spec [MONO_INST_DEST] == 'l') {
+ int hreg = prev_dreg + 1;
+ val = rs->iassign [hreg];
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_int (rs, dest_mask);
+ if (val < 0)
+ val = get_register_spilling (cfg, tmp, ins, dest_mask, hreg);
+ rs->iassign [hreg] = val;
+ if (spill)
+ create_spilled_store (cfg, spill, val, hreg, ins);
+ }
+ DEBUG (g_print ("\tassigned hreg %s to dest R%d\n", mono_arch_regname (val), hreg));
+ rs->isymbolic [val] = hreg;
+ /* FIXME:? ins->dreg = val; */
+ if (ins->dreg == s390_r3) {
+ if (val != s390_r2)
+ create_copy_ins (cfg, val, s390_r2, ins);
+ } else if (ins->dreg == s390_r2) {
+ if (val == s390_r3) {
+ /* swap */
+ create_copy_ins (cfg, s390_r3, s390_r0, ins);
+ create_copy_ins (cfg, s390_r2, s390_r3, ins);
+ create_copy_ins (cfg, s390_r0, s390_r2, ins);
+ } else {
+ /* two forced copies */
+ create_copy_ins (cfg, ins->dreg, s390_r3, ins);
+ create_copy_ins (cfg, val, s390_r2, ins);
+ }
+ } else {
+ if (val == s390_r2) {
+ create_copy_ins (cfg, ins->dreg, s390_r2, ins);
+ } else {
+ /* two forced copies */
+ create_copy_ins (cfg, val, s390_r2, ins);
+ create_copy_ins (cfg, ins->dreg, s390_r3, ins);
+ }
+ }
+ if (reg_is_freeable (val) &&
+ hreg >= 0 &&
+ (reginfo [hreg].born_in >= i &&
+ !(cur_iregs & (1 << val)))) {
+ DEBUG (g_print ("\tfreeable %s (R%d)\n", mono_arch_regname (val), hreg));
+ mono_regstate_free_int (rs, val);
+ }
+ } else if (spec [MONO_INST_DEST] == 'a' && ins->dreg != s390_r2 && spec [MONO_INST_CLOB] != 'd') {
+ /* this instruction only outputs to s390_r2, need to copy */
+ create_copy_ins (cfg, ins->dreg, s390_r2, ins);
+ }
+ } else {
+ prev_dreg = -1;
+ }
+ if (spec [MONO_INST_DEST] == 'f' &&
+ freg_is_freeable (ins->dreg) &&
+ prev_dreg >= 0 && (reginfof [prev_dreg].born_in >= i)) {
+ DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
+ mono_regstate_free_float (rs, ins->dreg);
+ } else if (spec [MONO_INST_DEST] != 'f' &&
+ reg_is_freeable (ins->dreg) &&
+ prev_dreg >= 0 && (reginfo [prev_dreg].born_in >= i)) {
+ DEBUG (g_print ("\tfreeable %s (R%d) (born in %d)\n", mono_arch_regname (ins->dreg), prev_dreg, reginfo [prev_dreg].born_in));
+ mono_regstate_free_int (rs, ins->dreg);
+ }
+ if (spec [MONO_INST_SRC1] == 'f') {
+ src1_mask = cur_fregs;
+ if (ins->sreg1 >= MONO_MAX_FREGS) {
+ val = rs->fassign [ins->sreg1];
+ prev_sreg1 = ins->sreg1;
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_float (rs, src1_mask);
+ if (val < 0)
+ val = get_float_register_spilling (cfg, tmp, ins, src1_mask, ins->sreg1);
+ rs->fassign [ins->sreg1] = val;
+ DEBUG (g_print ("\tassigned sreg1 %s to R%d\n", mono_arch_regname (val), ins->sreg1));
+ if (spill) {
+ MonoInst *store = create_spilled_store_float (cfg, spill, val, prev_sreg1, NULL);
+ insert_before_ins (ins, tmp, store);
+ }
+ }
+ rs->fsymbolic [val] = prev_sreg1;
+ ins->sreg1 = val;
+ } else {
+ prev_sreg1 = -1;
+ }
+ } else if (ins->sreg1 >= MONO_MAX_IREGS) {
+ val = rs->iassign [ins->sreg1];
+ prev_sreg1 = ins->sreg1;
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_int (rs, src1_mask);
+ if (val < 0)
+ val = get_register_spilling (cfg, tmp, ins,
+ src1_mask,
+ ins->sreg1);
+ rs->iassign [ins->sreg1] = val;
+ DEBUG (g_print ("\tassigned sreg1 %s to R%d\n",
+ mono_arch_regname (val), ins->sreg1));
+ if (spill) {
+ MonoInst *store;
+ store = create_spilled_store (cfg, spill, val,
+ prev_sreg1, NULL);
+ insert_before_ins (ins, tmp, store);
+ }
+ }
+ rs->isymbolic [val] = prev_sreg1;
+ ins->sreg1 = val;
+ } else {
+ prev_sreg1 = -1;
+ }
+ /*----------------------------------------------*/
+ /* handle clobbering of sreg1 */
+ /*----------------------------------------------*/
+ if ((spec [MONO_INST_CLOB] == '1' ||
+ spec [MONO_INST_CLOB] == 's') &&
+ ins->dreg != ins->sreg1) {
+ MonoInst *copy;
+ copy = create_copy_ins (cfg, ins->dreg, ins->sreg1, NULL);
+ DEBUG (g_print ("\tneed to copy sreg1 %s to dreg %s\n",
+ mono_arch_regname (ins->sreg1),
+ mono_arch_regname (ins->dreg)));
+ if (ins->sreg2 == -1 || spec [MONO_INST_CLOB] == 's') {
+ /* note: the copy is inserted before the current instruction! */
+ insert_before_ins (ins, tmp, copy);
+ /* we set sreg1 to dest as well */
+ prev_sreg1 = ins->sreg1 = ins->dreg;
+ } else {
+ /* inserted after the operation */
+ copy->next = ins->next;
+ ins->next = copy;
+ }
+ }
+
+ if (spec [MONO_INST_SRC2] == 'f') {
+ src2_mask = cur_fregs;
+ if (ins->sreg2 >= MONO_MAX_FREGS) {
+ val = rs->fassign [ins->sreg2];
+ prev_sreg2 = ins->sreg2;
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_float (rs, src2_mask);
+ if (val < 0)
+ val = get_float_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
+ rs->fassign [ins->sreg2] = val;
+ DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
+ if (spill)
+ create_spilled_store_float (cfg, spill, val, prev_sreg2, ins);
+ }
+ rs->fsymbolic [val] = prev_sreg2;
+ ins->sreg2 = val;
+ } else {
+ prev_sreg2 = -1;
+ }
+ } else if (ins->sreg2 >= MONO_MAX_IREGS) {
+ val = rs->iassign [ins->sreg2];
+ prev_sreg2 = ins->sreg2;
+ if (val < 0) {
+ int spill = 0;
+ if (val < -1) {
+ /* the register gets spilled after this inst */
+ spill = -val -1;
+ }
+ val = mono_regstate_alloc_int (rs, src2_mask);
+ if (val < 0)
+ val = get_register_spilling (cfg, tmp, ins, src2_mask, ins->sreg2);
+ rs->iassign [ins->sreg2] = val;
+ DEBUG (g_print ("\tassigned sreg2 %s to R%d\n", mono_arch_regname (val), ins->sreg2));
+ if (spill)
+ create_spilled_store (cfg, spill, val, prev_sreg2, ins);
+ }
+ rs->isymbolic [val] = prev_sreg2;
+ ins->sreg2 = val;
+ } else {
+ prev_sreg2 = -1;
+ }
+
+ if (spec [MONO_INST_CLOB] == 'c') {
+ int j, s;
+ guint32 clob_mask = S390_CALLER_REGS;
+ for (j = 0; j < MONO_MAX_IREGS; ++j) {
+ s = 1 << j;
+ if ((clob_mask & s) && !(rs->ifree_mask & s) && j != ins->sreg1) {
+ //g_warning ("register %s busy at call site\n", mono_arch_regname (j));
+ }
+ }
+ }
+ tmp = tmp->next;
+ }
}
/*========================= End of Function ========================*/
}
break;
case CEE_BREAK: {
- mono_add_patch_info (cfg, offset, MONO_PATCH_INFO_ABS, mono_arch_break);
- s390_brasl (code, s390_r14, 0);
+ s390_break (code);
}
break;
case OP_ADDCC: {
EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
}
break;
- case OP_LADD_OVF: {
- short int *o[1];
- CHECK_SRCDST_COM;
- s390_alr (code, ins->dreg, src2);
- s390_jnc (code, 0); CODEPTR(code, o[0]);
- s390_ahi (code, ins->dreg+1, 1);
- EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
- PTRSLOT (code, o[0]);
- s390_ar (code, ins->dreg+1, src2+1);
- EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
- }
- break;
- case OP_LADD_OVF_UN: {
- CHECK_SRCDST_COM;
- s390_alr (code, ins->dreg, src2);
- s390_alcr (code, ins->dreg+1, src2+1);
- EMIT_COND_SYSTEM_EXCEPTION (S390_CC_CY, "OverflowException");
- }
- break;
case OP_ADD_OVF_CARRY: {
CHECK_SRCDST_COM;
s390_lhi (code, s390_r0, 0);
EMIT_COND_SYSTEM_EXCEPTION (S390_CC_NC, "OverflowException");
}
break;
- case OP_LSUB_OVF: {
- short int *o[3];
- CHECK_SRCDST_COM;
- s390_lr (code, s390_r1, src2+1);
- s390_slr (code, ins->dreg, src2);
- s390_jnl (code, 0); CODEPTR(code, o[0]);
- s390_ahi (code, s390_r1, 1);
- EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
- PTRSLOT (code, o[0]);
- s390_sr (code, ins->dreg+1, s390_r1);
- EMIT_COND_SYSTEM_EXCEPTION (S390_CC_OV, "OverflowException");
- }
- break;
- case OP_LSUB_OVF_UN: {
- CHECK_SRCDST_COM;
- s390_slr (code, ins->dreg, src2);
- s390_slbr (code, ins->dreg+1, src2+1);
- EMIT_COND_SYSTEM_EXCEPTION (S390_CC_LT, "OverflowException");
- }
- break;
case OP_SUB_OVF_CARRY: {
CHECK_SRCDST_NCOM;
s390_lhi (code, s390_r0, 0);
s390_basr (code, s390_r13, 0);
s390_j (code, 4);
s390_word (code, ins->inst_imm);
-// if (ins->dreg != ins->sreg1) {
-// s390_lr (code, ins->dreg, ins->sreg1);
-// }
+ if (ins->dreg != ins->sreg1) {
+ s390_lr (code, ins->dreg, ins->sreg1);
+ }
s390_l (code, s390_r13, 0, s390_r13, 4);
}
- if (ins->dreg != ins->sreg1) {
- s390_lr (code, ins->dreg, ins->sreg1);
- }
s390_msr (code, ins->dreg, s390_r13);
}
break;
break;
case OP_FCONV_TO_R4: {
if ((ins->next) &&
- (ins->next->opcode != OP_FMOVE) &&
- (ins->next->opcode != OP_STORER4_MEMBASE_REG))
+ (ins->next->opcode != OP_STORER4_MEMBASE_REG))
s390_ledbr (code, ins->dreg, ins->sreg1);
}
break;
g_assert_not_reached ();
break;
case OP_LOCALLOC: {
-// int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area +
-// S390_STACK_ALIGNMENT - 1;
-// int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
- int area_offset = S390_MINIMAL_STACK_SIZE;
+ int alloca_skip = S390_MINIMAL_STACK_SIZE + cfg->param_area +
+ S390_STACK_ALIGNMENT - 1;
+ int area_offset = S390_ALIGN(alloca_skip, S390_STACK_ALIGNMENT);
s390_lr (code, s390_r1, ins->sreg1);
if (ins->flags & MONO_INST_INIT)
s390_lr (code, s390_r0, ins->sreg1);
s390_srl (code, s390_r1, 0, 3);
s390_sll (code, s390_r1, 0, 3);
s390_l (code, s390_r13, 0, STK_BASE, 0);
- s390_sr (code, STK_BASE, s390_r1);
+ s390_lcr (code, s390_r1, s390_r1);
+ s390_la (code, STK_BASE, STK_BASE, s390_r1, 0);
s390_st (code, s390_r13, 0, STK_BASE, 0);
s390_la (code, ins->dreg, 0, STK_BASE, area_offset);
s390_srl (code, ins->dreg, 0, 3);
void
mono_arch_register_lowlevel_calls (void)
{
- mono_register_jit_icall (mono_arch_break, "mono_arch_break", NULL, TRUE);
- mono_register_jit_icall (mono_arch_get_lmf_addr, "mono_arch_get_lmf_addr", NULL, TRUE);
-}
-
-/*========================= End of Function ========================*/
-
-/*------------------------------------------------------------------*/
-/* */
-/* Name - mono_arch_patch_code */
-/* */
-/* Function - Process the patch data created during the */
-/* instruction build process. This resolves jumps, */
-/* calls, variables etc. */
-/* */
-/*------------------------------------------------------------------*/
-
-static void
-mono_arch_break(void) {
+ mono_register_jit_icall (enter_method, "mono_enter_method", NULL, TRUE);
+ mono_register_jit_icall (leave_method, "mono_leave_method", NULL, TRUE);
}
/*========================= End of Function ========================*/
size_data sz;
int tracing = 0;
int lmfOffset; \
- int lFname,
- lJump;
- char *fname;
if (mono_jit_trace_calls != NULL && mono_trace_eval (method))
tracing = 1;
cfg->code_size = 512;
cfg->native_code = code = g_malloc (cfg->code_size);
- fname = mono_method_full_name (method, TRUE);
- lFname = strlen(fname);
- lJump = (((lFname + 1) >> 1) << 1);
- s390_j (code, lJump/2+2);
- memcpy (code, fname, lFname);
- code += lJump;
- g_free (fname);
-
if (cfg->flags & MONO_CFG_HAS_TAIL) {
s390_stm (code, s390_r2, s390_r14, STK_BASE, S390_PARM_SAVE_OFFSET);
for (pos = 0; pos < 4; pos++)
s390_lr (code, s390_r13, ainfo->reg);
s390_ahi (code, s390_r13, alloc_size);
s390_l (code, s390_r13, 0, s390_r13,
- ainfo->offparm + cinfo->offStruct);
+ ainfo->offparm + S390_MINIMAL_STACK_SIZE);
code = emit_memcpy (code, abs(ainfo->vtsize),
inst->inst_basereg,
inst->inst_offset, s390_r13, 0);
} else {
- s390_st (code, ainfo->reg, 0, inst->inst_basereg, inst->inst_offset);
-// code = emit_memcpy (code, abs(ainfo->vtsize),
-// inst->inst_basereg,
-// inst->inst_offset,
-// ainfo->reg, 0);
+ code = emit_memcpy (code, abs(ainfo->vtsize),
+ inst->inst_basereg,
+ inst->inst_offset,
+ ainfo->reg, 0);
}
} else
g_assert_not_reached ();
}
if (method->save_lmf) {
- /*---------------------------------------------------------------*/
- /* we build the MonoLMF structure on the stack - see mini-s390.h */
- /*---------------------------------------------------------------*/
- lmfOffset = alloc_size - sizeof(MonoLMF);
-
- s390_lr (code, s390_r13, cfg->frame_reg);
- s390_ahi (code, s390_r13, lmfOffset);
-
/*---------------------------------------------------------------*/
/* Preserve the parameter registers while we fix up the lmf */
/*---------------------------------------------------------------*/
- s390_stm (code, s390_r2, s390_r6, s390_r13,
- G_STRUCT_OFFSET(MonoLMF, pregs[0]));
+ s390_lr (code, s390_r7, s390_r2);
+ s390_lr (code, s390_r8, s390_r3);
+ s390_lr (code, s390_r9, s390_r4);
+ s390_lr (code, s390_r10, s390_r5);
- /*---------------------------------------------------------------*/
- /* On return from this call r2 have the address of the &lmf */
- /*---------------------------------------------------------------*/
mono_add_patch_info (cfg, code - cfg->native_code,
MONO_PATCH_INFO_INTERNAL_METHOD,
(gpointer)"mono_get_lmf_addr");
+ /*---------------------------------------------------------------*/
+ /* On return from this call r2 have the address of the &lmf */
+ /*---------------------------------------------------------------*/
s390_brasl (code, s390_r14, 0);
+ /*---------------------------------------------------------------*/
+ /* we build the MonoLMF structure on the stack - see mini-s390.h */
+ /*---------------------------------------------------------------*/
+ lmfOffset = alloc_size - sizeof(MonoLMF);
+
+ s390_lr (code, s390_r13, cfg->frame_reg);
+ s390_ahi (code, s390_r13, lmfOffset);
+
/*---------------------------------------------------------------*/
/* Set lmf.lmf_addr = jit_tls->lmf */
/*---------------------------------------------------------------*/
/*---------------------------------------------------------------*/
/* Restore the parameter registers now that we've set up the lmf */
/*---------------------------------------------------------------*/
- s390_lm (code, s390_r2, s390_r6, s390_r13,
- G_STRUCT_OFFSET(MonoLMF, pregs[0]));
+ s390_lr (code, s390_r2, s390_r7);
+ s390_lr (code, s390_r3, s390_r8);
+ s390_lr (code, s390_r4, s390_r9);
+ s390_lr (code, s390_r5, s390_r10);
}
if (tracing)
- code = mono_arch_instrument_prolog(cfg, enter_method, code, TRUE);
+ code = mono_arch_instrument_prolog (cfg, enter_method, code, TRUE);
cfg->code_len = code - cfg->native_code;
g_free (cinfo);
/* Setup an alternate signal stack */
/*----------------------------------------------------------*/
tls->stack_size = stSize;
- tls->signal_stack = mmap (0, SIGNAL_STACK_SIZE,
- PROT_READ|PROT_WRITE|PROT_EXEC,
- MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+ tls->signal_stack = g_malloc (SIGNAL_STACK_SIZE);
tls->signal_stack_size = SIGNAL_STACK_SIZE;
sa.ss_sp = tls->signal_stack;
sa.ss_flags = SS_ONSTACK;
sigaltstack (&sa, NULL);
#endif
- if (!lmf_addr_key_inited) {
- lmf_addr_key_inited = TRUE;
- pthread_key_create (&lmf_addr_key, NULL);
- }
- pthread_setspecific (lmf_addr_key, &tls->lmf);
}
sigaltstack (&sa, NULL);
if (tls->signal_stack)
- munmap(tls->signal_stack, SIGNAL_STACK_SIZE);
+ g_free (tls->signal_stack);
#endif
}
if (this_reg != -1) {
MonoInst *this;
MONO_INST_NEW (cfg, this, OP_SETREG);
- this->type = this_type;
+ this->type = this_type;
this->sreg1 = this_reg;
- this->dreg = mono_regstate_next_int (cfg->rs);
+ this->dreg = this_dreg;
mono_bblock_add_inst (cfg->cbb, this);
- mono_call_inst_add_outarg_reg (inst, this->dreg, this_dreg, FALSE);
}
if (vt_reg != -1) {
MonoInst *vtarg;
MONO_INST_NEW (cfg, vtarg, OP_SETREG);
- vtarg->type = STACK_MP;
+ vtarg->type = STACK_MP;
vtarg->sreg1 = vt_reg;
- vtarg->dreg = mono_regstate_next_int (cfg->rs);
+ vtarg->dreg = s390_r2;
mono_bblock_add_inst (cfg->cbb, vtarg);
- mono_call_inst_add_outarg_reg (inst, vtarg->dreg, s390_r2, FALSE);
}
}
switch (tree->opcode) {
case OP_S390_LOADARG:
- case OP_S390_ARGREG:
case OP_S390_ARGPTR:
printf ("[0x%x(%s)]", tree->inst_offset,
mono_arch_regname (tree->inst_basereg));
{
}
-/*========================= End of Function ========================*/
-
-/*------------------------------------------------------------------*/
-/* */
-/* Name - mono_arch_get_lmf_addr */
-/* */
-/* Function - */
-/* */
-/* Returns - */
-/* */
-/*------------------------------------------------------------------*/
-
-gpointer
-mono_arch_get_lmf_addr (void)
-{
- return pthread_getspecific (lmf_addr_key);
-}
-
-
/*========================= End of Function ========================*/
projects / mono.git / blobdiff