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sse.h
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/**
* @file sse.h
*
* @brief class implementation
*/
#ifndef _SSE_H_INCLUDED
#define _SSE_H_INCLUDED
#include <smmintrin.h>
#include <stdint.h>
#include <stdio.h>
#define DEBUG2
/**
* @class char_vec
*/
typedef uint64_t char_vec_reg;
class char_vec {
private:
uint64_t v;
public:
/* consts */
static int8_t const MAX = 127;
static int8_t const MIN = -128;
static uint64_t const SIZE = sizeof(uint64_t);
static uint64_t const LEN = sizeof(uint64_t);
/* constructors */
char_vec(void) {
set(0);
}
char_vec(int8_t k) {
set(k);
}
char_vec(uint64_t i) {
v = i;
}
char_vec(uint64_t const *p) {
v = *p;
}
char_vec(int8_t const *p) {
v = *((uint64_t *)p);
}
/* setter */
inline void zero(void) {
v = 0;
}
inline void set(int8_t k) {
v = ((uint64_t)k<<8) | (uint64_t)k;
v = (v<<16) | v;
v = (v<<32) | v;
}
/* getter */
inline uint64_t const &get(void) const { return(v); }
/* assign */
inline char_vec operator=(char_vec const &b) {
return(char_vec(v = b.get()));
}
/* and */
inline char_vec operator&(char_vec const &b) const {
return(char_vec(v & b.get()));
}
/* or */
inline char_vec operator|(char_vec const &b) const {
return(char_vec(v | b.get()));
}
/* shift left */
inline char_vec operator<<(int s) const {
switch(s) {
#define l(n) c(n+1) c(n+2) c(n+3) c(n+4) c(n+5) c(n+6) c(n+7)
case 0: return(char_vec(v));
#define c(n) case n: return(char_vec(v<<(8*(n))));
l(0);
#undef c
default: return(char_vec((uint64_t)0));
#undef l
}
}
inline char_vec operator>>(int s) const {
switch(s) {
#define l(n) c(n+1) c(n+2) c(n+3) c(n+4) c(n+5) c(n+6) c(n+7)
case 0: return(char_vec(v));
#define c(n) case n: return(char_vec(v>>(8*(n))));
l(0);
#undef c
default: return(char_vec((uint64_t)0));
#undef l
}
}
/* double shift: (a<<7) | (b>>1) */
inline char_vec dsr(char_vec const &b) const {
return(char_vec((v<<56) | (b.get()>>8)));
}
/* double shift: (a<<1) | (b>>7) */
inline char_vec dsl(char_vec const &b) const {
return(char_vec((v<<8) | (b.get()>>56)));
}
/* binary assign */
inline char_vec operator&=(char_vec const &b) { return(operator=(operator&(b))); }
inline char_vec operator|=(char_vec const &b) { return(operator=(operator|(b))); }
inline char_vec operator<<=(int s) { return(operator=(operator<<(s))); }
inline char_vec operator>>=(int s) { return(operator=(operator>>(s))); }
/* array */
inline int8_t operator[](uint64_t i) const {
if(i < 8) {
return(operator>>(i).get() & 0xff);
} else {
return(0);
}
}
inline int8_t lsb(void) const { return(operator[](0)); }
inline int8_t center(void) const { return(operator[](4)); }
inline int8_t msb(void) const { return(operator[](7)); }
inline int8_t ins(int8_t k, uint64_t i) {
if(i < 8) {
v = (v & ~(0xff<<(8*i))) | (k<<(8*i));
} else {
return(0);
}
return(k);
}
/* load and store */
inline void load(void const *ptr) {
v = *((uint64_t *)ptr);
}
inline void loadu(void const *ptr) {
load(ptr);
}
inline void load_encode_a(void const *ptr, uint64_t len) {
load(ptr);
len = len > 8 ? 8 : len; len--;
v = (0x0303030303030303>>8*(7 - len)) & ((v>>1) ^ (v>>2));
v |= 0x0909090909090900<<8*len;
}
inline void load_encode_b(void const *ptr, uint64_t len) {
load(ptr);
len = len > 8 ? 8 : len; len--;
v = (0x0c0c0c0c0c0c0c0c>>8*(7 - len)) & ((v<<1) ^ v);
v |= 0x0909090909090900<<8*len;
}
inline void store(void *ptr) const {
*((uint64_t *)ptr) = v;
}
inline void storeu(void *ptr) const {
store(ptr);
}
/* print */
#ifdef DEBUG
void print(void) const {
print(stderr, NULL);
}
void print(char const *msg) const {
print(stderr, msg);
}
void print(FILE *fp, char const *msg) const {
fprintf(fp, "%s%s[%016llx]\n", msg == NULL ? "" : msg, msg == NULL ? "" : " ", v);
}
#else
void print(void) const {}
void print(char const *msg) const {}
void print(FILE *fp, char const *msg) const {}
#endif
};
/**
* @class vec
*
* @brief SSE4.1 16bit 8cell
*/
class vec {
private:
__m128i v;
public:
/* consts */
static uint16_t const MAX = 65535;
static uint16_t const MIN = 0;
static uint64_t const SIZE = sizeof(__m128i);
static uint64_t const LEN = sizeof(__m128i) / sizeof(uint16_t);
/* constructors */
vec(void) {
set(0);
}
vec(uint16_t k) {
set(k);
}
vec(__m128i i) {
v = i;
}
vec(__m128i const *p) {
v = _mm_load_si128(p);
}
vec(uint16_t const *p) {
v = _mm_load_si128((__m128i const *)p);
}
/* setter */
inline void zero(void) {
v = _mm_setzero_si128();
}
inline void set(int16_t k) {
v = _mm_set1_epi16(k);
}
/* getter */
inline __m128i const &get(void) const { return(v); }
/* assign */
inline vec operator=(vec const &b) {
return(vec(v = b.get()));
}
/* add */
inline vec operator+(vec const &b) const {
return(vec(_mm_add_epi16(v, b.get())));
}
/* sub */
inline vec operator-(vec const &b) const {
return(vec(_mm_subs_epu16(v, b.get())));
}
/* and */
inline vec operator&(vec const &b) const {
return(vec(_mm_and_si128(v, b.get())));
}
/* or */
inline vec operator|(vec const &b) const {
return(vec(_mm_or_si128(v, b.get())));
}
/* compare */
inline uint16_t operator<(vec const &b) const {
__m128i _ofs = _mm_set1_epi16(32768);
__m128i _a = _mm_sub_epi16(v, _ofs);
__m128i _b = _mm_sub_epi16(b.get(), _ofs);
return(_mm_movemask_epi8(_mm_cmplt_epi16(_a, _b)));
}
inline uint16_t operator>(vec const &b) const {
__m128i _ofs = _mm_set1_epi16(32768);
__m128i _a = _mm_sub_epi16(v, _ofs);
__m128i _b = _mm_sub_epi16(b.get(), _ofs);
return(_mm_movemask_epi8(_mm_cmpgt_epi16(_a, _b)));
}
inline uint16_t operator<=(vec const &b) const { return(~operator>(b)); }
inline uint16_t operator>=(vec const &b) const { return(~operator<(b)); }
inline uint16_t operator==(vec const &b) const {
return(_mm_movemask_epi8(_mm_cmpeq_epi16(v, b.get())));
}
inline uint16_t operator!=(vec const &b) const {
return(~_mm_movemask_epi8(_mm_cmpeq_epi16(v, b.get())));
}
/* shift left */
inline vec operator<<(int s) const {
switch(s) {
#define l(n) c(n+1) c(n+2) c(n+3) c(n+4) c(n+5) c(n+6) c(n+7)
case 0: return(vec(v));
#define c(n) case n: return(vec(_mm_slli_si128(v, 2*(n))));
l(0);
#undef c
default: return(vec(_mm_setzero_si128()));
#undef l
}
}
inline vec operator>>(int s) const {
switch(s) {
#define l(n) c(n+1) c(n+2) c(n+3) c(n+4) c(n+5) c(n+6) c(n+7)
case 0: return(vec(v));
#define c(n) case n: return(vec(_mm_srli_si128(v, 2*(n))));
l(0);
#undef c
default: return(vec(_mm_setzero_si128()));
#undef l
}
}
/* double shift: (a<<7) | (b>>1) */
inline vec dsr(vec const &b) const {
return(vec(_mm_alignr_epi8(v, b.get(), 2)));
}
/* double shift: (a<<1) | (b>>7) */
inline vec dsl(vec const &b) const {
return(vec(_mm_alignr_epi8(v, b.get(), 14)));
}
/* binary assign */
inline vec operator+=(vec const &b) { return(operator=(operator+(b))); }
inline vec operator-=(vec const &b) { return(operator=(operator-(b))); }
inline vec operator&=(vec const &b) { return(operator=(operator&(b))); }
inline vec operator|=(vec const &b) { return(operator=(operator|(b))); }
inline vec operator<<=(int s) { return(operator=(operator<<(s))); }
inline vec operator>>=(int s) { return(operator=(operator>>(s))); }
/* array */
inline uint16_t operator[](uint64_t const i) const {
#ifdef DEBUG2
switch(i) {
case 0: return((uint16_t)_mm_extract_epi16(v, 0));
case 1: return((uint16_t)_mm_extract_epi16(v, 1));
case 2: return((uint16_t)_mm_extract_epi16(v, 2));
case 3: return((uint16_t)_mm_extract_epi16(v, 3));
case 4: return((uint16_t)_mm_extract_epi16(v, 4));
case 5: return((uint16_t)_mm_extract_epi16(v, 5));
case 6: return((uint16_t)_mm_extract_epi16(v, 6));
case 7: return((uint16_t)_mm_extract_epi16(v, 7));
default: return(0);
}
#else
if(i < 8) {
return((uint16_t)_mm_extract_epi16(v, i));
} else {
return(0);
}
#endif
}
inline uint16_t lsb(void) const { return(operator[](0)); }
inline uint16_t center(void) const { return(operator[](4)); }
inline uint16_t msb(void) const { return(operator[](7)); }
inline uint16_t ins(uint16_t k, uint64_t const i) {
#ifdef DEBUG2
switch(i) {
case 0: v = _mm_insert_epi16(v, k, 0); return(k);
case 1: v = _mm_insert_epi16(v, k, 1); return(k);
case 2: v = _mm_insert_epi16(v, k, 2); return(k);
case 3: v = _mm_insert_epi16(v, k, 3); return(k);
case 4: v = _mm_insert_epi16(v, k, 4); return(k);
case 5: v = _mm_insert_epi16(v, k, 5); return(k);
case 6: v = _mm_insert_epi16(v, k, 6); return(k);
case 7: v = _mm_insert_epi16(v, k, 7); return(k);
default: return(0);
}
#else
if(i < 8) {
v = _mm_insert_epi16(v, k, i);
} else {
return(0);
}
#endif
return(k);
}
/* compare and select */
inline vec static comp(vec const &a, vec const &b) {
return(vec(_mm_cmpeq_epi16(a.get(), b.get())));
}
inline vec select(uint16_t m, uint16_t x) const {
__m128i mv = _mm_set1_epi16(m);
__m128i xv = _mm_set1_epi16(x);
return(vec(_mm_blendv_epi8(xv, mv, v)));
}
inline vec select(vec const &m, vec const &x) const {
return(vec(_mm_blendv_epi8(x.get(), m.get(), v)));
}
inline vec shuffle(char_vec const &a) const {
__m128i index = _mm_cvtsi64_si128(a.get());
return(vec(_mm_cvtepi8_epi16(_mm_shuffle_epi8(v, index))));
}
/* make mask */
inline int64_t mask(void) const {
return(_mm_movemask_epi8(v));
}
/* max */
inline vec static max(vec const &a, vec const &b) {
return(vec(_mm_max_epu16(a.get(), b.get())));
}
/* horizontal max */
inline uint16_t hmax(void) const {
__m128i t = _mm_max_epu16(v, _mm_srli_si128(v, 2));
t = _mm_max_epu16(t, _mm_srli_si128(t, 4));
t = _mm_max_epu16(t, _mm_srli_si128(t, 8));
return((uint16_t)_mm_extract_epi16(t, 0));
}
/* load and store */
inline void load(void const *ptr) {
v = _mm_load_si128((__m128i *)ptr);
}
inline void loadu(void const *ptr) {
v = _mm_loadu_si128((__m128i *)ptr);
}
inline void load_expand(void const *ptr) {
uint64_t a = *((uint64_t *)ptr);
v = _mm_cvtepu8_epi16(_mm_cvtsi64_si128(a));
}
inline void store(void *ptr) const {
_mm_store_si128((__m128i *)ptr, v);
}
inline void storeu(void *ptr) const {
_mm_storeu_si128((__m128i *)ptr, v);
}
/* print */
#ifdef DEBUG
void print(void) const {
print(stderr, NULL);
}
void print(char const *msg) const {
print(stderr, msg);
}
void print(FILE *fp, char const *msg) const {
uint16_t b[8] __attribute__(( aligned (16) ));
store(b);
fprintf(fp,
"%s%s[%d, %d, %d, %d, %d, %d, %d, %d]\n",
msg == NULL ? "" : msg, msg == NULL ? "" : " ",
b[7] - 32768, b[6] - 32768, b[5] - 32768, b[4] - 32768, b[3] - 32768, b[2] - 32768, b[1] - 32768, b[0] - 32768);
}
#else
void print(void) const {}
void print(char const *msg) const {}
void print(FILE *fp, char const *msg) const {}
#endif
};
/**
* end of SSE4.1 16bit 8cell
*/
#endif
/**
* end of sse.h
*/