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Support for AArch64 #22

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Support for AArch64 #22

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4 changes: 2 additions & 2 deletions snappy-internal.h
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Original file line number Diff line number Diff line change
Expand Up @@ -79,8 +79,8 @@ char* CompressFragment(const char* input,
// Does not read *(s1 + (s2_limit - s2)) or beyond.
// Requires that s2_limit >= s2.
//
// Separate implementation for x86_64, for speed. Uses the fact that
// x86_64 is little endian.
// Separate implementation for x86_64/AArch64, for speed. Uses the fact that
// x86_64/AArch64 is little endian.
#if defined(ARCH_K8)
static inline int FindMatchLength(const char* s1,
const char* s2,
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9 changes: 5 additions & 4 deletions snappy-stubs-internal.h
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Expand Up @@ -47,12 +47,12 @@

#include "snappy-stubs-public.h"

#if defined(__x86_64__)
#if defined(__x86_64__) || defined(__aarch64__)

// Enable 64-bit optimized versions of some routines.
#define ARCH_K8 1

#endif
#endif //__x86_64__ || __aarch64__

// Needed by OS X, among others.
#ifndef MAP_ANONYMOUS
Expand Down Expand Up @@ -96,9 +96,10 @@ static const int64 kint64max = static_cast<int64>(0x7FFFFFFFFFFFFFFFLL);

// Potentially unaligned loads and stores.

// x86 and PowerPC can simply do these loads and stores native.
// x86, ARM64 and PowerPC can simply do these loads and stores native.

#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__)
#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__) \
|| defined(__aarch64__)

#define UNALIGNED_LOAD16(_p) (*reinterpret_cast<const uint16 *>(_p))
#define UNALIGNED_LOAD32(_p) (*reinterpret_cast<const uint32 *>(_p))
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