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Fix pointer check for non-GC64 mode.

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Thanks to Stefan Hett.
This commit is contained in:
Mike Pall 2020-06-23 03:14:35 +02:00
parent 17fb96d904
commit 471f8936cb
1 changed files with 2 additions and 1 deletions
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src/lj_def.h
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@ -104,9 +104,10 @@ typedef unsigned int uintptr_t;
#define checku16(x) ((x) == (int32_t)(uint16_t)(x)) #define checku16(x) ((x) == (int32_t)(uint16_t)(x))
#define checki32(x) ((x) == (int32_t)(x)) #define checki32(x) ((x) == (int32_t)(x))
#define checku32(x) ((x) == (uint32_t)(x)) #define checku32(x) ((x) == (uint32_t)(x))
#define checkptr31(x) (((uint64_t)(uintptr_t)(x) >> 31) == 0)
#define checkptr32(x) ((uintptr_t)(x) == (uint32_t)(uintptr_t)(x)) #define checkptr32(x) ((uintptr_t)(x) == (uint32_t)(uintptr_t)(x))
#define checkptr47(x) (((uint64_t)(uintptr_t)(x) >> 47) == 0) #define checkptr47(x) (((uint64_t)(uintptr_t)(x) >> 47) == 0)
#define checkptrGC(x) (LJ_GC64 ? checkptr47((x)) : LJ_64 ? checkptr32((x)) :1) #define checkptrGC(x) (LJ_GC64 ? checkptr47((x)) : LJ_64 ? checkptr31((x)) :1)
/* Every half-decent C compiler transforms this into a rotate instruction. */ /* Every half-decent C compiler transforms this into a rotate instruction. */
#define lj_rol(x, n) (((x)<<(n)) | ((x)>>(-(int)(n)&(8*sizeof(x)-1)))) #define lj_rol(x, n) (((x)<<(n)) | ((x)>>(-(int)(n)&(8*sizeof(x)-1))))