8881ba172a
This change replaces the hashing function used during compression with one that is roughly as good but faster. This speeds up compression by two to a few percent on the Intel-, AMD-, and Arm-based machines we tested. The amount of compression is roughly unchanged. PiperOrigin-RevId: 485960303
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
#ifndef THIRD_PARTY_SNAPPY_OPENSOURCE_CMAKE_CONFIG_H_
|
|
#define THIRD_PARTY_SNAPPY_OPENSOURCE_CMAKE_CONFIG_H_
|
|
|
|
/* Define to 1 if the compiler supports __attribute__((always_inline)). */
|
|
#cmakedefine01 HAVE_ATTRIBUTE_ALWAYS_INLINE
|
|
|
|
/* Define to 1 if the compiler supports __builtin_ctz and friends. */
|
|
#cmakedefine01 HAVE_BUILTIN_CTZ
|
|
|
|
/* Define to 1 if the compiler supports __builtin_expect. */
|
|
#cmakedefine01 HAVE_BUILTIN_EXPECT
|
|
|
|
/* Define to 1 if you have a definition for mmap() in <sys/mman.h>. */
|
|
#cmakedefine01 HAVE_FUNC_MMAP
|
|
|
|
/* Define to 1 if you have a definition for sysconf() in <unistd.h>. */
|
|
#cmakedefine01 HAVE_FUNC_SYSCONF
|
|
|
|
/* Define to 1 if you have the `lzo2' library (-llzo2). */
|
|
#cmakedefine01 HAVE_LIBLZO2
|
|
|
|
/* Define to 1 if you have the `z' library (-lz). */
|
|
#cmakedefine01 HAVE_LIBZ
|
|
|
|
/* Define to 1 if you have the `lz4' library (-llz4). */
|
|
#cmakedefine01 HAVE_LIBLZ4
|
|
|
|
/* Define to 1 if you have the <sys/mman.h> header file. */
|
|
#cmakedefine01 HAVE_SYS_MMAN_H
|
|
|
|
/* Define to 1 if you have the <sys/resource.h> header file. */
|
|
#cmakedefine01 HAVE_SYS_RESOURCE_H
|
|
|
|
/* Define to 1 if you have the <sys/time.h> header file. */
|
|
#cmakedefine01 HAVE_SYS_TIME_H
|
|
|
|
/* Define to 1 if you have the <sys/uio.h> header file. */
|
|
#cmakedefine01 HAVE_SYS_UIO_H
|
|
|
|
/* Define to 1 if you have the <unistd.h> header file. */
|
|
#cmakedefine01 HAVE_UNISTD_H
|
|
|
|
/* Define to 1 if you have the <windows.h> header file. */
|
|
#cmakedefine01 HAVE_WINDOWS_H
|
|
|
|
/* Define to 1 if you target processors with SSSE3+ and have <tmmintrin.h>. */
|
|
#cmakedefine01 SNAPPY_HAVE_SSSE3
|
|
|
|
/* Define to 1 if you target processors with SSE4.2 and have <crc32intrin.h>. */
|
|
#cmakedefine01 SNAPPY_HAVE_X86_CRC32
|
|
|
|
/* Define to 1 if you target processors with BMI2+ and have <bmi2intrin.h>. */
|
|
#cmakedefine01 SNAPPY_HAVE_BMI2
|
|
|
|
/* Define to 1 if you target processors with NEON and have <arm_neon.h>. */
|
|
#cmakedefine01 SNAPPY_HAVE_NEON
|
|
|
|
/* Define to 1 if you have <arm_neon.h> and <arm_acle.h> and want to optimize
|
|
compression speed by using __crc32cw from <arm_acle.h>. */
|
|
#cmakedefine01 SNAPPY_HAVE_NEON_CRC32
|
|
|
|
/* Define to 1 if your processor stores words with the most significant byte
|
|
first (like Motorola and SPARC, unlike Intel and VAX). */
|
|
#cmakedefine01 SNAPPY_IS_BIG_ENDIAN
|
|
|
|
#endif // THIRD_PARTY_SNAPPY_OPENSOURCE_CMAKE_CONFIG_H_
|