diff options
Diffstat (limited to 'compat/bswap.h')
| -rw-r--r-- | compat/bswap.h | 29 |
1 files changed, 5 insertions, 24 deletions
diff --git a/compat/bswap.h b/compat/bswap.h index 5078ce5ecc..512f6f4b99 100644 --- a/compat/bswap.h +++ b/compat/bswap.h @@ -1,3 +1,6 @@ +#ifndef COMPAT_BSWAP_H +#define COMPAT_BSWAP_H + /* * Let's make sure we always have a sane definition for ntohl()/htonl(). * Some libraries define those as a function call, just to perform byte @@ -71,7 +74,7 @@ static inline uint64_t git_bswap64(uint64_t x) } #endif -#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64)) +#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64) || defined(_M_ARM64)) #include <stdlib.h> @@ -142,28 +145,6 @@ static inline uint64_t git_bswap64(uint64_t x) #endif -/* - * Performance might be improved if the CPU architecture is OK with - * unaligned 32-bit loads and a fast ntohl() is available. - * Otherwise fall back to byte loads and shifts which is portable, - * and is faster on architectures with memory alignment issues. - */ - -#if !defined(NO_UNALIGNED_LOADS) && ( \ - defined(__i386__) || defined(__x86_64__) || \ - defined(_M_IX86) || defined(_M_X64) || \ - defined(__ppc__) || defined(__ppc64__) || \ - defined(__powerpc__) || defined(__powerpc64__) || \ - defined(__s390__) || defined(__s390x__)) - -#define get_be16(p) ntohs(*(unsigned short *)(p)) -#define get_be32(p) ntohl(*(unsigned int *)(p)) -#define get_be64(p) ntohll(*(uint64_t *)(p)) -#define put_be32(p, v) do { *(unsigned int *)(p) = htonl(v); } while (0) -#define put_be64(p, v) do { *(uint64_t *)(p) = htonll(v); } while (0) - -#else - static inline uint16_t get_be16(const void *ptr) { const unsigned char *p = ptr; @@ -209,4 +190,4 @@ static inline void put_be64(void *ptr, uint64_t value) p[7] = value >> 0; } -#endif +#endif /* COMPAT_BSWAP_H */ |