diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/vppinfra/byte_order.h | 44 |
1 files changed, 3 insertions, 41 deletions
diff --git a/src/vppinfra/byte_order.h b/src/vppinfra/byte_order.h index 87918f14e5c..9beb4470634 100644 --- a/src/vppinfra/byte_order.h +++ b/src/vppinfra/byte_order.h @@ -56,14 +56,7 @@ always_inline u16 clib_byte_swap_u16 (u16 x) { -#if defined (__aarch64__) - if (!__builtin_constant_p (x)) - { - __asm__ ("rev16 %w0, %w0":"+r" (x)); - return x; - } -#endif - return (x >> 8) | (x << 8); + return __builtin_bswap16 (x); } always_inline i16 @@ -75,20 +68,7 @@ clib_byte_swap_i16 (i16 x) always_inline u32 clib_byte_swap_u32 (u32 x) { -#if defined (i386) || defined (__x86_64__) - if (!__builtin_constant_p (x)) - { - asm volatile ("bswap %0":"=r" (x):"0" (x)); - return x; - } -#elif defined (__aarch64__) - if (!__builtin_constant_p (x)) - { - __asm__ ("rev %w0, %w0":"+r" (x)); - return x; - } -#endif - return ((x << 24) | ((x & 0xff00) << 8) | ((x >> 8) & 0xff00) | (x >> 24)); + return __builtin_bswap32 (x); } always_inline i32 @@ -100,25 +80,7 @@ clib_byte_swap_i32 (i32 x) always_inline u64 clib_byte_swap_u64 (u64 x) { -#if defined (__x86_64__) - if (!__builtin_constant_p (x)) - { - asm volatile ("bswapq %0":"=r" (x):"0" (x)); - return x; - } -#elif defined (__aarch64__) - if (!__builtin_constant_p (x)) - { - __asm__ ("rev %0, %0":"+r" (x)); - return x; - } -#endif -#define _(x,n,i) \ - ((((x) >> (8*(i))) & 0xff) << (8*((n)-(i)-1))) - return (_(x, 8, 0) | _(x, 8, 1) - | _(x, 8, 2) | _(x, 8, 3) - | _(x, 8, 4) | _(x, 8, 5) | _(x, 8, 6) | _(x, 8, 7)); -#undef _ + return __builtin_bswap64 (x); } always_inline i64 |