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P6int.c
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P6int.c
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#include "moar.h"
#ifdef MVM_BOOL
#include <stdbool.h>
#endif
/* This representation's function pointer table. */
static const MVMREPROps P6int_this_repr;
static void mk_storage_spec(MVMThreadContext *tc, MVMuint16 bits, MVMuint16 is_unsigned, MVMStorageSpec *spec) {
/* create storage spec */
spec->inlineable = MVM_STORAGE_SPEC_INLINED;
spec->boxed_primitive = MVM_STORAGE_SPEC_BP_INT;
spec->can_box = MVM_STORAGE_SPEC_CAN_BOX_INT;
spec->bits = bits;
spec->is_unsigned = is_unsigned;
switch (bits) {
case 64: spec->align = ALIGNOF(MVMint64); break;
case 32: spec->align = ALIGNOF(MVMint32); break;
case 16: spec->align = ALIGNOF(MVMint16); break;
default: spec->align = ALIGNOF(MVMint8); break;
}
}
/* Creates a new type object of this representation, and associates it with
* the given HOW. */
static MVMObject * type_object_for(MVMThreadContext *tc, MVMObject *HOW) {
MVMSTable *st = MVM_gc_allocate_stable(tc, &P6int_this_repr, HOW);
MVMROOT(tc, st, {
MVMObject *obj = MVM_gc_allocate_type_object(tc, st);
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)MVM_malloc(sizeof(MVMP6intREPRData));
repr_data->bits = sizeof(MVMint64) * 8;
repr_data->is_unsigned = 0;
mk_storage_spec(tc, repr_data->bits, repr_data->is_unsigned, &repr_data->storage_spec);
MVM_ASSIGN_REF(tc, &(st->header), st->WHAT, obj);
st->size = sizeof(MVMP6int);
st->REPR_data = repr_data;
});
return st->WHAT;
}
/* Copies the body of one object to another. */
static void copy_to(MVMThreadContext *tc, MVMSTable *st, void *src, MVMObject *dest_root, void *dest) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
MVMP6intBody *src_body = (MVMP6intBody *)src;
MVMP6intBody *dest_body = (MVMP6intBody *)dest;
switch (repr_data->bits) {
case 64: dest_body->value.i64 = src_body->value.i64; break;
case 32: dest_body->value.i32 = src_body->value.i32; break;
case 16: dest_body->value.i16 = src_body->value.i16; break;
default: dest_body->value.i8 = src_body->value.i8; break;
}
}
static void set_uint(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMuint64 value) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
switch (repr_data->bits) {
case 64: ((MVMP6intBody *)data)->value.u64 = value; break;
case 32: ((MVMP6intBody *)data)->value.u32 = (MVMuint32)value; break;
case 16: ((MVMP6intBody *)data)->value.u16 = (MVMuint16)value; break;
default: ((MVMP6intBody *)data)->value.u8 = (MVMuint8)value; break;
}
}
static MVMuint64 get_uint(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
switch (repr_data->bits) {
case 64: return ((MVMP6intBody *)data)->value.u64;
case 32: return ((MVMP6intBody *)data)->value.u32;
case 16: return ((MVMP6intBody *)data)->value.u16;
default: return ((MVMP6intBody *)data)->value.u8;
}
}
static void set_int(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMint64 value) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
switch (repr_data->bits) {
case 64: ((MVMP6intBody *)data)->value.i64 = value; break;
case 32: ((MVMP6intBody *)data)->value.i32 = (MVMint32)value; break;
case 16: ((MVMP6intBody *)data)->value.i16 = (MVMint16)value; break;
default: ((MVMP6intBody *)data)->value.i8 = (MVMint8)value; break;
}
}
static MVMint64 get_int(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
switch (repr_data->bits) {
case 64: return ((MVMP6intBody *)data)->value.i64;
case 32: return ((MVMP6intBody *)data)->value.i32;
case 16: return ((MVMP6intBody *)data)->value.i16;
default: return ((MVMP6intBody *)data)->value.i8;
}
}
/* Marks the representation data in an STable.*/
static void gc_free_repr_data(MVMThreadContext *tc, MVMSTable *st) {
MVM_free(st->REPR_data);
}
static const MVMStorageSpec default_storage_spec = {
MVM_STORAGE_SPEC_INLINED, /* inlineable */
sizeof(MVMint64) * 8, /* bits */
ALIGNOF(MVMint64), /* align */
MVM_STORAGE_SPEC_BP_INT, /* boxed_primitive */
MVM_STORAGE_SPEC_CAN_BOX_INT, /* can_box */
0, /* is_unsigned */
};
/* Gets the storage specification for this representation. */
static const MVMStorageSpec * get_storage_spec(MVMThreadContext *tc, MVMSTable *st) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
if (repr_data && repr_data->bits)
return &repr_data->storage_spec;
return &default_storage_spec;
}
/* Compose the representation. */
static void compose(MVMThreadContext *tc, MVMSTable *st, MVMObject *info_hash) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
MVMStringConsts str_consts = tc->instance->str_consts;
MVMObject *info = MVM_repr_at_key_o(tc, info_hash, str_consts.integer);
if (!MVM_is_null(tc, info)) {
MVMObject *bits_o = MVM_repr_at_key_o(tc, info, str_consts.bits);
MVMObject *is_unsigned_o = MVM_repr_at_key_o(tc, info, str_consts.unsigned_str);
if (!MVM_is_null(tc, bits_o)) {
repr_data->bits = MVM_repr_get_int(tc, bits_o);
switch (repr_data->bits) {
case MVM_P6INT_C_TYPE_CHAR: repr_data->bits = 8 * sizeof(char); break;
case MVM_P6INT_C_TYPE_SHORT: repr_data->bits = 8 * sizeof(short); break;
case MVM_P6INT_C_TYPE_INT: repr_data->bits = 8 * sizeof(int); break;
case MVM_P6INT_C_TYPE_LONG: repr_data->bits = 8 * sizeof(long); break;
case MVM_P6INT_C_TYPE_LONGLONG: repr_data->bits = 8 * sizeof(long long); break;
case MVM_P6INT_C_TYPE_SIZE_T: repr_data->bits = 8 * sizeof(size_t); break;
#ifdef MVM_BOOL
case MVM_P6INT_C_TYPE_BOOL: repr_data->bits = 8 * sizeof(MVM_BOOL); break;
#else
case MVM_P6INT_C_TYPE_BOOL: repr_data->bits = 8 * sizeof(char); break;
#endif
case MVM_P6INT_C_TYPE_ATOMIC: repr_data->bits = 8 * sizeof(AO_t); break;
}
if (repr_data->bits != 1 && repr_data->bits != 2 && repr_data->bits != 4 && repr_data->bits != 8
&& repr_data->bits != 16 && repr_data->bits != 32 && repr_data->bits != 64)
MVM_exception_throw_adhoc(tc, "MVMP6int: Unsupported int size (%dbit)", repr_data->bits);
} else {
repr_data->bits = default_storage_spec.bits;
}
if (!MVM_is_null(tc, is_unsigned_o)) {
repr_data->is_unsigned = MVM_repr_get_int(tc, is_unsigned_o);
}
}
if (repr_data->bits)
mk_storage_spec(tc, repr_data->bits, repr_data->is_unsigned, &repr_data->storage_spec);
}
/* Set the size of the STable. */
static void deserialize_stable_size(MVMThreadContext *tc, MVMSTable *st, MVMSerializationReader *reader) {
st->size = sizeof(MVMP6int);
}
/* Serializes the REPR data. */
static void serialize_repr_data(MVMThreadContext *tc, MVMSTable *st, MVMSerializationWriter *writer) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
MVM_serialization_write_int(tc, writer, repr_data->bits);
MVM_serialization_write_int(tc, writer, repr_data->is_unsigned);
}
/* Deserializes representation data. */
static void deserialize_repr_data(MVMThreadContext *tc, MVMSTable *st, MVMSerializationReader *reader) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)MVM_malloc(sizeof(MVMP6intREPRData));
repr_data->bits = MVM_serialization_read_int(tc, reader);
repr_data->is_unsigned = MVM_serialization_read_int(tc, reader);
if (repr_data->bits != 1 && repr_data->bits != 2 && repr_data->bits != 4 && repr_data->bits != 8
&& repr_data->bits != 16 && repr_data->bits != 32 && repr_data->bits != 64)
MVM_exception_throw_adhoc(tc, "MVMP6int: Unsupported int size (%dbit)", repr_data->bits);
mk_storage_spec(tc, repr_data->bits, repr_data->is_unsigned, &repr_data->storage_spec);
st->REPR_data = repr_data;
}
static void deserialize(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMSerializationReader *reader) {
set_int(tc, st, root, data, MVM_serialization_read_int(tc, reader));
}
static void serialize(MVMThreadContext *tc, MVMSTable *st, void *data, MVMSerializationWriter *writer) {
MVM_serialization_write_int(tc, writer, get_int(tc, st, NULL, data));
}
static void spesh(MVMThreadContext *tc, MVMSTable *st, MVMSpeshGraph *g, MVMSpeshBB *bb, MVMSpeshIns *ins) {
MVMP6intREPRData *repr_data = (MVMP6intREPRData *)st->REPR_data;
switch (ins->info->opcode) {
case MVM_OP_box_i: {
if (repr_data->bits == 64 && !(st->mode_flags & MVM_FINALIZE_TYPE)) {
/* Turn into a sp_fastbox_i[_ic] instruction. */
MVMint32 int_cache_type_idx = MVM_intcache_type_index(tc, st->WHAT);
MVMSpeshFacts *tgt_facts = MVM_spesh_get_facts(tc, g, ins->operands[0]);
MVMSpeshOperand *orig_operands = ins->operands;
ins->info = MVM_op_get_op(int_cache_type_idx < 0
? MVM_OP_sp_fastbox_i
: MVM_OP_sp_fastbox_i_ic);
ins->operands = MVM_spesh_alloc(tc, g, 6 * sizeof(MVMSpeshOperand));
ins->operands[0] = orig_operands[0];
ins->operands[1].lit_i16 = st->size;
ins->operands[2].lit_i16 = MVM_spesh_add_spesh_slot(tc, g, (MVMCollectable *)st);
ins->operands[3].lit_i16 = offsetof(MVMP6int, body.value);
ins->operands[4] = orig_operands[1];
ins->operands[5].lit_i16 = (MVMint16)int_cache_type_idx;
MVM_spesh_usages_delete_by_reg(tc, g, orig_operands[2], ins);
tgt_facts->flags |= MVM_SPESH_FACT_KNOWN_TYPE | MVM_SPESH_FACT_CONCRETE;
tgt_facts->type = st->WHAT;
}
break;
}
}
}
/* Initializes the representation. */
const MVMREPROps * MVMP6int_initialize(MVMThreadContext *tc) {
return &P6int_this_repr;
}
static const MVMREPROps P6int_this_repr = {
type_object_for,
MVM_gc_allocate_object,
NULL, /* initialize */
copy_to,
MVM_REPR_DEFAULT_ATTR_FUNCS,
{
set_int,
get_int,
MVM_REPR_DEFAULT_SET_NUM,
MVM_REPR_DEFAULT_GET_NUM,
MVM_REPR_DEFAULT_SET_STR,
MVM_REPR_DEFAULT_GET_STR,
set_uint,
get_uint,
MVM_REPR_DEFAULT_GET_BOXED_REF
}, /* box_funcs */
MVM_REPR_DEFAULT_POS_FUNCS,
MVM_REPR_DEFAULT_ASS_FUNCS,
MVM_REPR_DEFAULT_ELEMS,
get_storage_spec,
NULL, /* change_type */
serialize,
deserialize,
serialize_repr_data,
deserialize_repr_data,
deserialize_stable_size,
NULL, /* gc_mark */
NULL, /* gc_free */
NULL, /* gc_cleanup */
NULL, /* gc_mark_repr_data */
gc_free_repr_data,
compose,
spesh,
"P6int", /* name */
MVM_REPR_ID_P6int,
NULL, /* unmanaged_size */
NULL, /* describe_refs */
};