diff options
Diffstat (limited to 'include/longlong.h')
| -rw-r--r-- | include/longlong.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/longlong.h b/include/longlong.h index 40f9424..5ae250f 100644 --- a/include/longlong.h +++ b/include/longlong.h @@ -1065,6 +1065,20 @@ extern UDItype __umulsidi3 (USItype, USItype); #endif #if defined(__riscv) + +#ifdef __riscv_zbb +#if W_TYPE_SIZE == 32 +#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X)) +#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X)) +#define COUNT_LEADING_ZEROS_0 32 +#endif /* W_TYPE_SIZE == 32 */ +#if W_TYPE_SIZE == 64 +#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clzll (X)) +#define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctzll (X)) +#define COUNT_LEADING_ZEROS_0 64 +#endif /* W_TYPE_SIZE == 64 */ +#endif /* __riscv_zbb */ + #ifdef __riscv_mul #define __umulsidi3(u,v) ((UDWtype)(UWtype)(u) * (UWtype)(v)) #define __muluw3(a, b) ((UWtype)(a) * (UWtype)(b)) |