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Pack mrb_value into uint64_t when MRB_NAN_BOXING.

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2020-08-03 16:47:07 +09:00
parent 1eacdae319
commit 5e9dc72bc5
1 changed files with 36 additions and 22 deletions
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include/mruby/boxing_nan.h
+36 -22
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@@ -30,9 +30,12 @@
* In order to get enough bit size to save TT, all pointers are shifted 2 bits
* in the right direction. Also, TTTTTT is the mrb_vtype + 1;
*/
typedef struct mrb_value {
typedef uint64_t mrb_value;
struct mrb_value {
union {
mrb_float f;
uint64_t u;
union {
void *p;
struct {
@@ -44,47 +47,58 @@ typedef struct mrb_value {
};
)
};
#ifdef MRB_64BIT
struct RCptr *vp;
#endif
} value;
};
} mrb_value;
};
#define mrb_tt(o) ((enum mrb_vtype)(((o).value.ttt & 0xfc000)>>14)-1)
#define mrb_type(o) (enum mrb_vtype)((uint32_t)0xfff00000 < (o).value.ttt ? mrb_tt(o) : MRB_TT_FLOAT)
#define mrb_ptr(o) ((void*)((((uintptr_t)0x3fffffffffff)&((uintptr_t)((o).value.p)))<<2))
#define mrb_float(o) (o).f
#define mrb_fixnum(o) (o).value.i
#define mrb_symbol(o) (o).value.sym
static inline struct mrb_value
mrb_val_stru(mrb_value v)
{
struct mrb_value mrb_value_struct_variable = {.u = v};
return mrb_value_struct_variable;
}
#define mrb_tt(o) ((enum mrb_vtype)((mrb_val_stru(o).value.ttt & 0xfc000)>>14)-1)
#define mrb_type(o) (enum mrb_vtype)((uint32_t)0xfff00000 < mrb_val_stru(o).value.ttt ? mrb_tt(o) : MRB_TT_FLOAT)
#define mrb_ptr(o) ((void*)((((uintptr_t)0x3fffffffffff)&((uintptr_t)(mrb_val_stru(o).value.p)))<<2))
#define mrb_float(o) mrb_val_stru(o).f
#define mrb_fixnum(o) mrb_val_stru(o).value.i
#define mrb_symbol(o) mrb_val_stru(o).value.sym
#ifdef MRB_64BIT
MRB_API mrb_value mrb_nan_boxing_cptr_value(struct mrb_state*, void*);
#define mrb_cptr(o) (((struct RCptr*)mrb_ptr(o))->p)
#define BOXNAN_SHIFT_LONG_POINTER(v) (((uintptr_t)(v)>>34)&0x3fff)
#else
#define mrb_cptr(o) ((o).value.p)
#define mrb_cptr(o) (mrb_val_stru(o).value.p)
#define BOXNAN_SHIFT_LONG_POINTER(v) 0
#endif
#define BOXNAN_SET_VALUE(o, tt, attr, v) do {\
(o).attr = (v);\
(o).value.ttt = 0xfff00000 | (((tt)+1)<<14);\
#define BOXNAN_SET_VALUE(o, tt, attr, v) do { \
struct mrb_value mrb_value_struct_variable; \
mrb_value_struct_variable.attr = (v);\
mrb_value_struct_variable.value.ttt = 0xfff00000 | (((tt)+1)<<14);\
o = mrb_value_struct_variable.u;\
} while (0)
#define BOXNAN_SET_OBJ_VALUE(o, tt, v) do {\
(o).value.p = (void*)((uintptr_t)(v)>>2);\
(o).value.ttt = (0xfff00000|(((tt)+1)<<14)|BOXNAN_SHIFT_LONG_POINTER(v));\
struct mrb_value mrb_value_struct_variable;\
mrb_value_struct_variable.value.p = (void*)((uintptr_t)(v)>>2);\
mrb_value_struct_variable.value.ttt = (0xfff00000|(((tt)+1)<<14)|BOXNAN_SHIFT_LONG_POINTER(v));\
o = mrb_value_struct_variable.u;\
} while (0)
#define SET_FLOAT_VALUE(mrb,r,v) do { \
if ((v) != (v)) { \
(r).value.ttt = 0x7ff80000; \
(r).value.i = 0; \
struct mrb_value mrb_value_struct_variable; \
if ((v) != (v)) { /* NaN */ \
mrb_value_struct_variable.value.ttt = 0x7ff80000; \
mrb_value_struct_variable.value.i = 0; \
} \
else { \
(r).f = v; \
}} while(0)
mrb_value_struct_variable.f = (v); \
} \
r = mrb_value_struct_variable.u; \
} while(0)
#define SET_NIL_VALUE(r) BOXNAN_SET_VALUE(r, MRB_TT_FALSE, value.i, 0)
#define SET_FALSE_VALUE(r) BOXNAN_SET_VALUE(r, MRB_TT_FALSE, value.i, 1)