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thirdparty: remove unused dependecy wyhash (#10038) 

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pull/10051/head
Enzo 2021-05-08 13:36:52 +02:00 committed by GitHub
parent ed7c8d5e19
commit 7d922c877d
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3 changed files with 1 additions and 101 deletions
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25
thirdparty/wyhash/LICENSE vendored
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@ -1,25 +0,0 @@
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>

76
thirdparty/wyhash/wyhash.h vendored
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@ -1,76 +0,0 @@
// Author: Wang Yi <godspeed_china@yeah.net>
#ifndef wyhash_version_4
#define wyhash_version_4
#include <stdint.h>
#include <string.h>
#if defined(_MSC_VER) && defined(_M_X64)
#include <intrin.h>
#pragma intrinsic(_umul128)
#endif
const uint64_t _wyp0=0xa0761d6478bd642full, _wyp1=0xe7037ed1a0b428dbull, _wyp2=0x8ebc6af09c88c6e3ull, _wyp3=0x589965cc75374cc3ull, _wyp4=0x1d8e4e27c47d124full;
static inline uint64_t _wyrotr(uint64_t v, unsigned k) { return (v>>k)|(v<<(64-k)); }
static inline uint64_t _wymum(uint64_t A, uint64_t B) {
#ifdef WYHASH32
uint64_t hh=(A>>32)*(B>>32), hl=(A>>32)*(unsigned)B, lh=(unsigned)A*(B>>32), ll=(uint64_t)(unsigned)A*(unsigned)B;
return _wyrotr(hl,32)^_wyrotr(lh,32)^hh^ll;
#else
#ifdef __SIZEOF_INT128__
__uint128_t r=A; r*=B; return (r>>64)^r;
#elif defined(_MSC_VER) && defined(_M_X64)
A=_umul128(A, B, &B); return A^B;
#else
uint64_t ha=A>>32, hb=B>>32, la=(uint32_t)A, lb=(uint32_t)B, hi, lo;
uint64_t rh=ha*hb, rm0=ha*lb, rm1=hb*la, rl=la*lb, t=rl+(rm0<<32), c=t<rl;
lo=t+(rm1<<32); c+=lo<t;hi=rh+(rm0>>32)+(rm1>>32)+c; return hi^lo;
#endif
#endif
}
#ifndef WYHASH_LITTLE_ENDIAN
#if defined(_WIN32) || defined(__LITTLE_ENDIAN__) || (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
#define WYHASH_LITTLE_ENDIAN 1
#elif defined(__BIG_ENDIAN__) || (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
#define WYHASH_LITTLE_ENDIAN 0
#endif
#endif
#if(WYHASH_LITTLE_ENDIAN) || defined(__TINYC__)
static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return v; }
static inline uint64_t _wyr4(const uint8_t *p) { unsigned v; memcpy(&v, p, 4); return v; }
#else
#if defined(__GNUC__) || defined(__INTEL_COMPILER)
static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return __builtin_bswap64(v); }
static inline uint64_t _wyr4(const uint8_t *p) { unsigned v; memcpy(&v, p, 4); return __builtin_bswap32(v); }
#elif defined(_MSC_VER)
static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return _byteswap_uint64(v);}
static inline uint64_t _wyr4(const uint8_t *p) { unsigned v; memcpy(&v, p, 4); return _byteswap_ulong(v); }
#endif
#endif
static inline uint64_t _wyr3(const uint8_t *p, unsigned k) { return (((uint64_t)p[0])<<16)|(((uint64_t)p[k>>1])<<8)|p[k-1]; }
static inline uint64_t wyhash(const void* key, uint64_t len, uint64_t seed) {
const uint8_t *p=(const uint8_t*)key; uint64_t i=len&63;
#if defined(__GNUC__) || defined(__INTEL_COMPILER)
#define _like_(x) __builtin_expect(x,1)
#define _unlike_(x) __builtin_expect(x,0)
#else
#define _like_(x) (x)
#define _unlike_(x) (x)
#endif
if(_unlike_(!i)) { }
else if(_unlike_(i<4)) seed=_wymum(_wyr3(p,i)^seed^_wyp0,seed^_wyp1);
else if(_like_(i<=8)) seed=_wymum(_wyr4(p)^seed^_wyp0,_wyr4(p+i-4)^seed^_wyp1);
else if(_like_(i<=16)) seed=_wymum(_wyr8(p)^seed^_wyp0,_wyr8(p+i-8)^seed^_wyp1);
else if(_like_(i<=24)) seed=_wymum(_wyr8(p)^seed^_wyp0,_wyr8(p+8)^seed^_wyp1)^_wymum(_wyr8(p+i-8)^seed^_wyp2,seed^_wyp3);
else if(_like_(i<=32)) seed=_wymum(_wyr8(p)^seed^_wyp0,_wyr8(p+8)^seed^_wyp1)^_wymum(_wyr8(p+16)^seed^_wyp2,_wyr8(p+i-8)^seed^_wyp3);
else{ seed=_wymum(_wyr8(p)^seed^_wyp0,_wyr8(p+8)^seed^_wyp1)^_wymum(_wyr8(p+16)^seed^_wyp2,_wyr8(p+24)^seed^_wyp3)^_wymum(_wyr8(p+i-32)^seed^_wyp1,_wyr8(p+i-24)^seed^_wyp2)^_wymum(_wyr8(p+i-16)^seed^_wyp3,_wyr8(p+i-8)^seed^_wyp0); }
if(_like_(i==len)) return _wymum(seed,len^_wyp4);
uint64_t see1=seed, see2=seed, see3=seed;
for(p+=i,i=len-i; _like_(i>=64); i-=64,p+=64) {
seed=_wymum(_wyr8(p)^seed^_wyp0,_wyr8(p+8)^seed^_wyp1); see1=_wymum(_wyr8(p+16)^see1^_wyp2,_wyr8(p+24)^see1^_wyp3);
see2=_wymum(_wyr8(p+32)^see2^_wyp1,_wyr8(p+40)^see2^_wyp2); see3=_wymum(_wyr8(p+48)^see3^_wyp3,_wyr8(p+56)^see3^_wyp0);
}
return _wymum(seed^see1^see2,see3^len^_wyp4);
}
static inline uint64_t wyhash64(uint64_t A, uint64_t B) { return _wymum(_wymum(A^_wyp0, B^_wyp1), _wyp2); }
static inline uint64_t wyrand(uint64_t *seed) { *seed+=_wyp0; return _wymum(*seed^_wyp1,*seed); }
static inline double wy2u01(uint64_t r) { const double _wynorm=1.0/(1ull<<52); return (r>>11)*_wynorm; }
static inline double wy2gau(uint64_t r) { const double _wynorm=1.0/(1ull<<20); return ((r&0x1fffff)+((r>>21)&0x1fffff)+((r>>42)&0x1fffff))*_wynorm-3.0; }
#endif

1
vlib/hash/wyhash.c.v
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@ -3,6 +3,7 @@ module hash
//#flag -I @VEXEROOT/thirdparty/wyhash
//#include "wyhash.h"
fn C.wyhash(&byte, u64, u64, &u64) u64
fn C.wyhash64(u64, u64) u64
[inline]