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Refine MRB_NAN_BOXING on 32bit architecture.

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You don't need pointer tweaking on 32bit architecture, where pointers
fit in 32bit (lower half of mrb_value).
This commit is contained in:
Yukihiro "Matz" Matsumoto
2020-08-05 22:51:40 +09:00
parent f751c28ca4
commit 425b142168
1 changed files with 12 additions and 2 deletions
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include/mruby/boxing_nan.h
+12 -2
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@@ -37,13 +37,18 @@ struct mrb_value {
mrb_float f;
uint64_t u;
union {
#ifdef MRB_64BIT
void *p;
#endif
struct {
MRB_ENDIAN_LOHI(
uint32_t ttt;
,union {
mrb_int i;
mrb_sym sym;
#ifdef MRB_32BIT
void *p;
#endif
};
)
};
@@ -60,17 +65,18 @@ mrb_val_stru(mrb_value v)
#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
#define mrb_ptr(o) ((void*)((((uintptr_t)0x3fffffffffff)&((uintptr_t)(mrb_val_stru(o).value.p)))<<2))
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) (mrb_val_stru(o).value.p)
#define mrb_ptr(o) (mrb_val_stru(o).value.p)
#define mrb_cptr(o) mrb_ptr(o)
#define BOXNAN_SHIFT_LONG_POINTER(v) 0
#endif
@@ -81,12 +87,16 @@ MRB_API mrb_value mrb_nan_boxing_cptr_value(struct mrb_state*, void*);
o = mrb_value_struct_variable.u;\
} while (0)
#ifdef MRB_64BIT
#define BOXNAN_SET_OBJ_VALUE(o, tt, v) do {\
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)
#else
#define BOXNAN_SET_OBJ_VALUE(o, tt, v) BOXNAN_SET_VALUE(o, tt, value.p, v)
#endif
#define SET_FLOAT_VALUE(mrb,r,v) do { \
struct mrb_value mrb_value_struct_variable; \