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cgen: minor cleanup in cheaders.v (#10610)
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yuyi
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@ -63,15 +63,15 @@ const c_common_macros = '
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#define __V_architecture 0
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#if defined(__x86_64__)
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#define __V_amd64 1
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#undef __V_architecture
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#define __V_architecture 1
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#define __V_amd64 1
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#undef __V_architecture
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#define __V_architecture 1
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#endif
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#if defined(__aarch64__) || defined(__arm64__)
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#define __V_arm64 1
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#undef __V_architecture
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#define __V_architecture 2
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#define __V_arm64 1
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#undef __V_architecture
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#define __V_architecture 2
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#endif
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// Using just __GNUC__ for detecting gcc, is not reliable because other compilers define it too:
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@ -198,12 +198,10 @@ static inline bool _us64_lt(uint64_t a, int64_t b) { return a < INT64_MAX && (in
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'
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const c_helper_macros = '//============================== HELPER C MACROS =============================*/
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//#define tos4(s, slen) ((string){.str=(s), .len=(slen)})
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// _SLIT0 is used as NULL string for literal arguments
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// `"" s` is used to enforce a string literal argument
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#define _SLIT0 (string){.len=0}
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#define _SLIT(s) ((string){.str=(byteptr)("" s), .len=(sizeof(s)-1), .is_lit=1})
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//#define _SLIT(s) ((string){.str=(byteptr)("" s), .len=(sizeof(s)-1), .is_lit=1})
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// take the address of an rvalue
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#define ADDR(type, expr) (&((type[]){expr}[0]))
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// copy something to the heap
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@ -476,26 +474,26 @@ const c_wyhash_headers = '
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#define wyhash_final_version_3
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#ifndef WYHASH_CONDOM
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//protections that produce different results:
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//1: normal valid behavior
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//2: extra protection against entropy loss (probability=2^-63), aka. "blind multiplication"
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// protections that produce different results:
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// 1: normal valid behavior
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// 2: extra protection against entropy loss (probability=2^-63), aka. "blind multiplication"
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#define WYHASH_CONDOM 1
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#endif
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#ifndef WYHASH_32BIT_MUM
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//0: normal version, slow on 32 bit systems
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//1: faster on 32 bit systems but produces different results, incompatible with wy2u0k function
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// 0: normal version, slow on 32 bit systems
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// 1: faster on 32 bit systems but produces different results, incompatible with wy2u0k function
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#define WYHASH_32BIT_MUM 0
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#endif
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//includes
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// includes
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#include <stdint.h>
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#if defined(_MSC_VER) && defined(_M_X64)
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#include <intrin.h>
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#pragma intrinsic(_umul128)
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#endif
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//128bit multiply function
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// 128bit multiply function
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static inline uint64_t _wyrot(uint64_t x) { return (x>>32)|(x<<32); }
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static inline void _wymum(uint64_t *A, uint64_t *B){
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#if(WYHASH_32BIT_MUM)
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@ -532,10 +530,10 @@ static inline void _wymum(uint64_t *A, uint64_t *B){
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#endif
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}
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//multiply and xor mix function, aka MUM
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// multiply and xor mix function, aka MUM
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static inline uint64_t _wymix(uint64_t A, uint64_t B){ _wymum(&A,&B); return A^B; }
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//endian macros
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// endian macros
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#ifndef WYHASH_LITTLE_ENDIAN
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#ifdef TARGET_ORDER_IS_LITTLE
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#define WYHASH_LITTLE_ENDIAN 1
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@ -544,69 +542,68 @@ static inline uint64_t _wymix(uint64_t A, uint64_t B){ _wymum(&A,&B); return A^B
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#endif
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#endif
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//read functions
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// read functions
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#if (WYHASH_LITTLE_ENDIAN)
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static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return v;}
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static inline uint64_t _wyr4(const uint8_t *p) { uint32_t v; memcpy(&v, p, 4); return v;}
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static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return v;}
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static inline uint64_t _wyr4(const uint8_t *p) { uint32_t v; memcpy(&v, p, 4); return v;}
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#elif defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__clang__)
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static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return __builtin_bswap64(v);}
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static inline uint64_t _wyr4(const uint8_t *p) { uint32_t v; memcpy(&v, p, 4); return __builtin_bswap32(v);}
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static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return __builtin_bswap64(v);}
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static inline uint64_t _wyr4(const uint8_t *p) { uint32_t v; memcpy(&v, p, 4); return __builtin_bswap32(v);}
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#elif defined(_MSC_VER)
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static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return _byteswap_uint64(v);}
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static inline uint64_t _wyr4(const uint8_t *p) { uint32_t v; memcpy(&v, p, 4); return _byteswap_ulong(v);}
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static inline uint64_t _wyr8(const uint8_t *p) { uint64_t v; memcpy(&v, p, 8); return _byteswap_uint64(v);}
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static inline uint64_t _wyr4(const uint8_t *p) { uint32_t v; memcpy(&v, p, 4); return _byteswap_ulong(v);}
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#else
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static inline uint64_t _wyr8(const uint8_t *p) {
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uint64_t v; memcpy(&v, p, 8);
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return (((v >> 56) & 0xff)| ((v >> 40) & 0xff00)| ((v >> 24) & 0xff0000)| ((v >> 8) & 0xff000000)| ((v << 8) & 0xff00000000)| ((v << 24) & 0xff0000000000)| ((v << 40) & 0xff000000000000)| ((v << 56) & 0xff00000000000000));
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}
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static inline uint64_t _wyr4(const uint8_t *p) {
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uint32_t v; memcpy(&v, p, 4);
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return (((v >> 24) & 0xff)| ((v >> 8) & 0xff00)| ((v << 8) & 0xff0000)| ((v << 24) & 0xff000000));
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}
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static inline uint64_t _wyr8(const uint8_t *p) {
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uint64_t v; memcpy(&v, p, 8);
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return (((v >> 56) & 0xff)| ((v >> 40) & 0xff00)| ((v >> 24) & 0xff0000)| ((v >> 8) & 0xff000000)| ((v << 8) & 0xff00000000)| ((v << 24) & 0xff0000000000)| ((v << 40) & 0xff000000000000)| ((v << 56) & 0xff00000000000000));
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}
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static inline uint64_t _wyr4(const uint8_t *p) {
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uint32_t v; memcpy(&v, p, 4);
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return (((v >> 24) & 0xff)| ((v >> 8) & 0xff00)| ((v << 8) & 0xff0000)| ((v << 24) & 0xff000000));
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}
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#endif
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static inline uint64_t _wyr3(const uint8_t *p, size_t k) { return (((uint64_t)p[0])<<16)|(((uint64_t)p[k>>1])<<8)|p[k-1];}
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//wyhash main function
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// wyhash main function
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static inline uint64_t wyhash(const void *key, size_t len, uint64_t seed, const uint64_t *secret){
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const uint8_t *p=(const uint8_t *)key; seed^=*secret; uint64_t a, b;
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if(_likely_(len<=16)){
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if(_likely_(len>=4)){ a=(_wyr4(p)<<32)|_wyr4(p+((len>>3)<<2)); b=(_wyr4(p+len-4)<<32)|_wyr4(p+len-4-((len>>3)<<2)); }
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else if(_likely_(len>0)){ a=_wyr3(p,len); b=0;}
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const uint8_t *p=(const uint8_t *)key; seed^=*secret; uint64_t a, b;
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if (_likely_(len<=16)) {
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if (_likely_(len>=4)) { a=(_wyr4(p)<<32)|_wyr4(p+((len>>3)<<2)); b=(_wyr4(p+len-4)<<32)|_wyr4(p+len-4-((len>>3)<<2)); }
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else if (_likely_(len>0)) { a=_wyr3(p,len); b=0; }
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else a=b=0;
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}
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else{
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} else {
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size_t i=len;
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if(_unlikely_(i>48)){
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if (_unlikely_(i>48)) {
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uint64_t see1=seed, see2=seed;
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do{
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do {
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seed=_wymix(_wyr8(p)^secret[1],_wyr8(p+8)^seed);
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see1=_wymix(_wyr8(p+16)^secret[2],_wyr8(p+24)^see1);
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see2=_wymix(_wyr8(p+32)^secret[3],_wyr8(p+40)^see2);
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p+=48; i-=48;
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}while(_likely_(i>48));
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} while(_likely_(i>48));
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seed^=see1^see2;
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}
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while(_unlikely_(i>16)){ seed=_wymix(_wyr8(p)^secret[1],_wyr8(p+8)^seed); i-=16; p+=16; }
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while(_unlikely_(i>16)) { seed=_wymix(_wyr8(p)^secret[1],_wyr8(p+8)^seed); i-=16; p+=16; }
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a=_wyr8(p+i-16); b=_wyr8(p+i-8);
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}
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return _wymix(secret[1]^len,_wymix(a^secret[1],b^seed));
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}
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//the default secret parameters
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// the default secret parameters
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static const uint64_t _wyp[4] = {0xa0761d6478bd642full, 0xe7037ed1a0b428dbull, 0x8ebc6af09c88c6e3ull, 0x589965cc75374cc3ull};
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//a useful 64bit-64bit mix function to produce deterministic pseudo random numbers that can pass BigCrush and PractRand
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// a useful 64bit-64bit mix function to produce deterministic pseudo random numbers that can pass BigCrush and PractRand
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static inline uint64_t wyhash64(uint64_t A, uint64_t B){ A^=0xa0761d6478bd642full; B^=0xe7037ed1a0b428dbull; _wymum(&A,&B); return _wymix(A^0xa0761d6478bd642full,B^0xe7037ed1a0b428dbull);}
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//The wyrand PRNG that pass BigCrush and PractRand
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// the wyrand PRNG that pass BigCrush and PractRand
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static inline uint64_t wyrand(uint64_t *seed){ *seed+=0xa0761d6478bd642full; return _wymix(*seed,*seed^0xe7037ed1a0b428dbull);}
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//convert any 64 bit pseudo random numbers to uniform distribution [0,1). It can be combined with wyrand, wyhash64 or wyhash.
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// convert any 64 bit pseudo random numbers to uniform distribution [0,1). It can be combined with wyrand, wyhash64 or wyhash.
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static inline double wy2u01(uint64_t r){ const double _wynorm=1.0/(1ull<<52); return (r>>12)*_wynorm;}
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//convert any 64 bit pseudo random numbers to APPROXIMATE Gaussian distribution. It can be combined with wyrand, wyhash64 or wyhash.
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// convert any 64 bit pseudo random numbers to APPROXIMATE Gaussian distribution. It can be combined with wyrand, wyhash64 or wyhash.
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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;}
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#if(!WYHASH_32BIT_MUM)
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//fast range integer random number generation on [0,k) credit to Daniel Lemire. May not work when WYHASH_32BIT_MUM=1. It can be combined with wyrand, wyhash64 or wyhash.
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// fast range integer random number generation on [0,k) credit to Daniel Lemire. May not work when WYHASH_32BIT_MUM=1. It can be combined with wyrand, wyhash64 or wyhash.
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static inline uint64_t wy2u0k(uint64_t r, uint64_t k){ _wymum(&r,&k); return k; }
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#endif
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#endif
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