/**
Copyright (C) powturbo 2013-2019
GPL v2 License
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- homepage : https://sites.google.com/site/powturbo/
- github : https://github.com/powturbo
- twitter : https://twitter.com/powturbo
- email : powturbo [_AT_] gmail [_DOT_] com
**/
// conf.h - config & common
#ifndef CONF_H
#define CONF_H
//------------------------- Compiler ------------------------------------------
#if defined(__GNUC__)
#include <stdint.h>
#define ALIGNED(t,v,n) t v __attribute__ ((aligned (n)))
#define ALWAYS_INLINE inline __attribute__((always_inline))
#define NOINLINE __attribute__((noinline))
#define _PACKED __attribute__ ((packed))
#define likely(x) __builtin_expect((x),1)
#define unlikely(x) __builtin_expect((x),0)
#define popcnt32(_x_) __builtin_popcount(_x_)
#define popcnt64(_x_) __builtin_popcountll(_x_)
#if defined(__i386__) || defined(__x86_64__)
//__bsr32: 1:0,2:1,3:1,4:2,5:2,6:2,7:2,8:3,9:3,10:3,11:3,12:3,13:3,14:3,15:3,16:4,17:4,18:4,19:4,20:4,21:4,22:4,23:4,24:4,25:4,26:4,27:4,28:4,29:4,30:4,31:4,32:5
// bsr32: 0:0,1:1,2:2,3:2,4:3,5:3,6:3,7:3,8:4,9:4,10:4,11:4,12:4,13:4,14:4,15:4,16:5,17:5,18:5,19:5,20:5,21:5,22:5,23:5,24:5,25:5,26:5,27:5,28:5,29:5,30:5,31:5,32:6,
static inline int __bsr32( int x) { asm("bsr %1,%0" : "=r" (x) : "rm" (x) ); return x; }
static inline int bsr32( int x) { int b = -1; asm("bsrl %1,%0" : "+r" (b) : "rm" (x) ); return b + 1; }
static inline int bsr64(uint64_t x) { return x?64 - __builtin_clzll(x):0; }
static inline unsigned rol32(unsigned x, int s) { asm ("roll %%cl,%0" :"=r" (x) :"0" (x),"c" (s)); return x; }
static inline unsigned ror32(unsigned x, int s) { asm ("rorl %%cl,%0" :"=r" (x) :"0" (x),"c" (s)); return x; }
static inline uint64_t rol64(uint64_t x, int s) { asm ("rolq %%cl,%0" :"=r" (x) :"0" (x),"c" (s)); return x; }
static inline uint64_t ror64(uint64_t x, int s) { asm ("rorq %%cl,%0" :"=r" (x) :"0" (x),"c" (s)); return x; }
#else
static inline int __bsr32(unsigned x ) { return 31 - __builtin_clz( x); }
static inline int bsr32(int x ) { return x?32 - __builtin_clz( x):0; }
static inline int bsr64(uint64_t x) { return x?64 - __builtin_clzll(x):0; }
static inline unsigned rol32(unsigned x, int s) { return x << s | x >> (32 - s); }
static inline unsigned ror32(unsigned x, int s) { return x >> s | x << (32 - s); }
static inline unsigned rol64(unsigned x, int s) { return x << s | x >> (64 - s); }
static inline unsigned ror64(unsigned x, int s) { return x >> s | x << (64 - s); }
#endif
#define ctz64(_x_) __builtin_ctzll(_x_)
#define ctz32(_x_) __builtin_ctz(_x_) // 0:32 ctz32(1<<a) = a (a=1..31)
#define clz64(_x_) __builtin_clzll(_x_)
#define clz32(_x_) __builtin_clz(_x_)
//#define bswap8(x) (x)
#if __GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 8
#define bswap16(x) __builtin_bswap16(x)
#else
static inline unsigned short bswap16(unsigned short x) { return __builtin_bswap32(x << 16); }
#endif
#define bswap32(x) __builtin_bswap32(x)
#define bswap64(x) __builtin_bswap64(x)
#elif _MSC_VER //----------------------------------------------------
#include <windows.h>
#include <intrin.h>
#if _MSC_VER < 1600
#include "vs/stdint.h"
#define __builtin_prefetch(x,a)
#define inline __inline
#else
#include <stdint.h>
#define __builtin_prefetch(x,a) _mm_prefetch(x, _MM_HINT_NTA)
#endif
#define ALIGNED(t,v,n) __declspec(align(n)) t v
#define ALWAYS_INLINE __forceinline
#define NOINLINE __declspec(noinline)
#define THREADLOCAL __declspec(thread)
#define likely(x) (x)
#define unlikely(x) (x)
static inline int __bsr32(unsigned x) { unsigned long z=0; _BitScanReverse(&z, x); return z; }
static inline int bsr32( unsigned x) { unsigned long z; _BitScanReverse(&z, x); return x?z+1:0; }
static inline int ctz32( unsigned x) { unsigned long z; _BitScanForward(&z, x); return x?z:32; }
static inline int clz32( unsigned x) { unsigned long z; _BitScanReverse(&z, x); return x?31-z:32; }
#if !defined(_M_ARM64) && !defined(_M_X64)
static inline unsigned char _BitScanForward64(unsigned long* ret, uint64_t x) {
unsigned long x0 = (unsigned long)x, top, bottom; _BitScanForward(&top, (unsigned long)(x >> 32)); _BitScanForward(&bottom, x0);
*ret = x0 ? bottom : 32 + top; return x != 0;
}
static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) {
unsigned long x1 = (unsigned long)(x >> 32), top, bottom; _BitScanReverse(&top, x1); _BitScanReverse(&bottom, (unsigned long)x);
*ret = x1 ? top + 32 : bottom; return x != 0;
}
#endif
static inline int bsr64(uint64_t x) { unsigned long z=0; _BitScanReverse64(&z, x); return x?z+1:0; }
static inline int ctz64(uint64_t x) { unsigned long z; _BitScanForward64(&z, x); return x?z:64; }
static inline int clz64(uint64_t x) { unsigned long z; _BitScanReverse64(&z, x); return x?63-z:64; }
#define rol32(x,s) _lrotl(x, s)
#define ror32(x,s) _lrotr(x, s)
#define bswap16(x) _byteswap_ushort(x)
#define bswap32(x) _byteswap_ulong(x)
#define bswap64(x) _byteswap_uint64(x)
#define popcnt32(x) __popcnt(x)
#ifdef _WIN64
#define popcnt64(x) __popcnt64(x)
#else
#define popcnt64(x) (popcnt32(x) + popcnt32(x>>32))
#endif
#define sleep(x) Sleep(x/1000)
#define fseeko _fseeki64
#define ftello _ftelli64
#define strcasecmp _stricmp
#define strncasecmp _strnicmp
#define strtoull _strtoui64
static inline double round(double num) { return (num > 0.0) ? floor(num + 0.5) : ceil(num - 0.5); }
#endif
#define bsr8(_x_) bsr32(_x_)
#define bsr16(_x_) bsr32(_x_)
#define ctz8(_x_) ctz32(_x_)
#define ctz16(_x_) ctz32(_x_)
#define clz8(_x_) (clz32(_x_)-24)
#define clz16(_x_) (clz32(_x_)-16)
#define popcnt8(x) popcnt32(x)
#define popcnt16(x) popcnt32(x)
//--------------- Unaligned memory access -------------------------------------
#ifdef UA_MEMCPY
#include <string.h>
static inline unsigned short ctou16(const void *cp) { unsigned short x; memcpy(&x, cp, sizeof(x)); return x; }
static inline unsigned ctou32(const void *cp) { unsigned x; memcpy(&x, cp, sizeof(x)); return x; }
static inline unsigned long long ctou64(const void *cp) { unsigned long long x; memcpy(&x, cp, sizeof(x)); return x; }
static inline size_t ctousz(const void *cp) { size_t x; memcpy(&x, cp, sizeof(x)); return x; }
static inline float ctof32(const void *cp) { float x; memcpy(&x, cp, sizeof(x)); return x; }
static inline double ctof64(const void *cp) { double x; memcpy(&x, cp, sizeof(x)); return x; }
static inline void stou16( void *cp, unsigned short x) { memcpy(cp, &x, sizeof(x)); }
static inline void stou32( void *cp, unsigned x) { memcpy(cp, &x, sizeof(x)); }
static inline void stou64( void *cp, unsigned long long x) { memcpy(cp, &x, sizeof(x)); }
static inline void stousz( void *cp, size_t x) { memcpy(cp, &x, sizeof(x)); }
static inline void stof32( void *cp, float x) { memcpy(cp, &x, sizeof(x)); }
static inline void stof64( void *cp, double x) { memcpy(cp, &x, sizeof(x)); }
#elif defined(__i386__) || defined(__x86_64__) || \
defined(_M_IX86) || defined(_M_AMD64) || _MSC_VER ||\
defined(__powerpc__) || defined(__s390__) ||\
defined(__ARM_FEATURE_UNALIGNED) || defined(__aarch64__) || defined(__arm__) ||\
defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__) || \
defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_5TEJ__) || \
defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__)
#define ctou16(_cp_) (*(unsigned short *)(_cp_))
#define ctou32(_cp_) (*(unsigned *)(_cp_))
#define ctof32(_cp_) (*(float *)(_cp_))
#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__) || defined(__s390__) || defined(_MSC_VER)
#define ctou64(_cp_) (*(uint64_t *)(_cp_))
#define ctof64(_cp_) (*(double *)(_cp_))
#elif defined(__ARM_FEATURE_UNALIGNED)
struct _PACKED longu { uint64_t l; };
struct _PACKED doubleu { double d; };
#define ctou64(_cp_) ((struct longu *)(_cp_))->l
#define ctof64(_cp_) ((struct doubleu *)(_cp_))->d
#endif
#elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7S__)
struct _PACKED shortu { unsigned short s; };
struct _PACKED unsignedu { unsigned u; };
struct _PACKED longu { uint64_t l; };
struct _PACKED floatu { float f; };
struct _PACKED doubleu { double d; };
#define ctou16(_cp_) ((struct shortu *)(_cp_))->s
#define ctou32(_cp_) ((struct unsignedu *)(_cp_))->u
#define ctou64(_cp_) ((struct longu *)(_cp_))->l
#define ctof32(_cp_) ((struct floatu *)(_cp_))->f
#define ctof64(_cp_) ((struct doubleu *)(_cp_))->d
#else
#error "unknown cpu"
#endif
#define ctou24(_cp_) (ctou32(_cp_) & 0xffffff)
#define ctou48(_cp_) (ctou64(_cp_) & 0xffffffffffffull)
#define ctou8(_cp_) (*(_cp_))
//--------------------- wordsize ----------------------------------------------
#if defined(__64BIT__) || defined(_LP64) || defined(__LP64__) || defined(_WIN64) ||\
defined(__x86_64__) || defined(_M_X64) ||\
defined(__ia64) || defined(_M_IA64) ||\
defined(__aarch64__) ||\
defined(__mips64) ||\
defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) ||\
defined(__s390x__)
#define __WORDSIZE 64
#else
#define __WORDSIZE 32
#endif
#endif
//---------------------misc ---------------------------------------------------
#define BZHI64(_u_, _b_) ((_u_) & ((1ull<<(_b_))-1))
#define BZHI32(_u_, _b_) ((_u_) & ((1u <<(_b_))-1))
#define BZHI16(_u_, _b_) BZHI32(_u_, _b_)
#define BZHI8(_u_, _b_) BZHI32(_u_, _b_)
#define SIZE_ROUNDUP(_n_, _a_) (((size_t)(_n_) + (size_t)((_a_) - 1)) & ~(size_t)((_a_) - 1))
#define ALIGN_DOWN(__ptr, __a) ((void *)((uintptr_t)(__ptr) & ~(uintptr_t)((__a) - 1)))
#define TEMPLATE2_(_x_, _y_) _x_##_y_
#define TEMPLATE2(_x_, _y_) TEMPLATE2_(_x_,_y_)
#define TEMPLATE3_(_x_,_y_,_z_) _x_##_y_##_z_
#define TEMPLATE3(_x_,_y_,_z_) TEMPLATE3_(_x_, _y_, _z_)
#define CACHE_LINE_SIZE 64
#define PREFETCH_DISTANCE (CACHE_LINE_SIZE*4)
//--- NDEBUG -------
#include <stdio.h>
#ifdef _MSC_VER
#ifdef NDEBUG
#define AS(expr, fmt, ...)
#define AC(expr, fmt, ...) do { if(!(expr)) { fprintf(stderr, fmt, ##__VA_ARGS__ ); fflush(stderr); abort(); } } while(0)
#define die(fmt, ...) do { fprintf(stderr, fmt, ##__VA_ARGS__ ); fflush(stderr); exit(-1); } while(0)
#else
#define AS(expr, fmt, ...) do { if(!(expr)) { fflush(stdout);fprintf(stderr, "%s:%s:%d:", __FILE__, __FUNCTION__, __LINE__); fprintf(stderr, fmt, ##__VA_ARGS__ ); fflush(stderr); abort(); } } while(0)
#define AC(expr, fmt, ...) do { if(!(expr)) { fflush(stdout);fprintf(stderr, "%s:%s:%d:", __FILE__, __FUNCTION__, __LINE__); fprintf(stderr, fmt, ##__VA_ARGS__ ); fflush(stderr); abort(); } } while(0)
#define die(fmt, ...) do { fprintf(stderr, "%s:%s:%d:", __FILE__, __FUNCTION__, __LINE__); fprintf(stderr, fmt, ##__VA_ARGS__ ); fflush(stderr); exit(-1); } while(0)
#endif
#else
#ifdef NDEBUG
#define AS(expr, fmt,args...)
#define AC(expr, fmt,args...) do { if(!(expr)) { fprintf(stderr, fmt, ## args ); fflush(stderr); abort(); } } while(0)
#define die(fmt,args...) do { fprintf(stderr, fmt, ## args ); fflush(stderr); exit(-1); } while(0)
#else
#define AS(expr, fmt,args...) do { if(!(expr)) { fflush(stdout);fprintf(stderr, "%s:%s:%d:", __FILE__, __FUNCTION__, __LINE__); fprintf(stderr, fmt, ## args ); fflush(stderr); abort(); } } while(0)
#define AC(expr, fmt,args...) do { if(!(expr)) { fflush(stdout);fprintf(stderr, "%s:%s:%d:", __FILE__, __FUNCTION__, __LINE__); fprintf(stderr, fmt, ## args ); fflush(stderr); abort(); } } while(0)
#define die(fmt,args...) do { fprintf(stderr, "%s:%s:%d:", __FILE__, __FUNCTION__, __LINE__); fprintf(stderr, fmt, ## args ); fflush(stderr); exit(-1); } while(0)
#endif
#endif