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deps/CRoaring/include/roaring/bitset_util.h

#ifndef CROARING_BITSET_UTIL_H
#define CROARING_BITSET_UTIL_H
#include <stdint.h>
#include <roaring/portability.h>
#include <roaring/utilasm.h>
#if CROARING_IS_X64
#ifndef CROARING_COMPILER_SUPPORTS_AVX512
#error "CROARING_COMPILER_SUPPORTS_AVX512 needs to be defined."
#endif // CROARING_COMPILER_SUPPORTS_AVX512
#endif
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wuninitialized"
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
#endif
#ifdef __cplusplus
extern "C" {
namespace roaring {
namespace internal {
#endif
/*
* Set all bits in indexes [begin,end) to true.
*/
static inline void bitset_set_range(uint64_t *words, uint32_t start,
uint32_t end) {
if (start == end) return;
uint32_t firstword = start / 64;
uint32_t endword = (end - 1) / 64;
if (firstword == endword) {
words[firstword] |= ((~UINT64_C(0)) << (start % 64)) &
((~UINT64_C(0)) >> ((~end + 1) % 64));
return;
}
words[firstword] |= (~UINT64_C(0)) << (start % 64);
for (uint32_t i = firstword + 1; i < endword; i++) {
words[i] = ~UINT64_C(0);
}
words[endword] |= (~UINT64_C(0)) >> ((~end + 1) % 64);
}
/*
* Find the cardinality of the bitset in [begin,begin+lenminusone]
*/
static inline int bitset_lenrange_cardinality(const uint64_t *words,
uint32_t start,
uint32_t lenminusone) {
uint32_t firstword = start / 64;
uint32_t endword = (start + lenminusone) / 64;
if (firstword == endword) {
return roaring_hamming(words[firstword] &
((~UINT64_C(0)) >> ((63 - lenminusone) % 64))
<< (start % 64));
}
int answer =
roaring_hamming(words[firstword] & ((~UINT64_C(0)) << (start % 64)));
for (uint32_t i = firstword + 1; i < endword; i++) {
answer += roaring_hamming(words[i]);
}
answer += roaring_hamming(words[endword] &
(~UINT64_C(0)) >>
(((~start + 1) - lenminusone - 1) % 64));
return answer;
}
/*
* Check whether the cardinality of the bitset in [begin,begin+lenminusone] is 0
*/
static inline bool bitset_lenrange_empty(const uint64_t *words, uint32_t start,
uint32_t lenminusone) {
uint32_t firstword = start / 64;
uint32_t endword = (start + lenminusone) / 64;
if (firstword == endword) {
return (words[firstword] & ((~UINT64_C(0)) >> ((63 - lenminusone) % 64))
<< (start % 64)) == 0;
}
if (((words[firstword] & ((~UINT64_C(0)) << (start % 64)))) != 0) {
return false;
}
for (uint32_t i = firstword + 1; i < endword; i++) {
if (words[i] != 0) {
return false;
}
}
if ((words[endword] &
(~UINT64_C(0)) >> (((~start + 1) - lenminusone - 1) % 64)) != 0) {
return false;
}
return true;
}
/*
* Set all bits in indexes [begin,begin+lenminusone] to true.
*/
static inline void bitset_set_lenrange(uint64_t *words, uint32_t start,
uint32_t lenminusone) {
uint32_t firstword = start / 64;
uint32_t endword = (start + lenminusone) / 64;
if (firstword == endword) {
words[firstword] |= ((~UINT64_C(0)) >> ((63 - lenminusone) % 64))
<< (start % 64);
return;
}
uint64_t temp = words[endword];
words[firstword] |= (~UINT64_C(0)) << (start % 64);
for (uint32_t i = firstword + 1; i < endword; i += 2)
words[i] = words[i + 1] = ~UINT64_C(0);
words[endword] =
temp | (~UINT64_C(0)) >> (((~start + 1) - lenminusone - 1) % 64);
}
/*
* Flip all the bits in indexes [begin,end).
*/
static inline void bitset_flip_range(uint64_t *words, uint32_t start,
uint32_t end) {
if (start == end) return;
uint32_t firstword = start / 64;
uint32_t endword = (end - 1) / 64;
words[firstword] ^= ~((~UINT64_C(0)) << (start % 64));
for (uint32_t i = firstword; i < endword; i++) {
words[i] = ~words[i];
}
words[endword] ^= ((~UINT64_C(0)) >> ((~end + 1) % 64));
}
/*
* Set all bits in indexes [begin,end) to false.
*/
static inline void bitset_reset_range(uint64_t *words, uint32_t start,
uint32_t end) {
if (start == end) return;
uint32_t firstword = start / 64;
uint32_t endword = (end - 1) / 64;
if (firstword == endword) {
words[firstword] &= ~(((~UINT64_C(0)) << (start % 64)) &
((~UINT64_C(0)) >> ((~end + 1) % 64)));
return;
}
words[firstword] &= ~((~UINT64_C(0)) << (start % 64));
for (uint32_t i = firstword + 1; i < endword; i++) {
words[i] = UINT64_C(0);
}
words[endword] &= ~((~UINT64_C(0)) >> ((~end + 1) % 64));
}
/*
* Given a bitset containing "length" 64-bit words, write out the position
* of all the set bits to "out", values start at "base".
*
* The "out" pointer should be sufficient to store the actual number of bits
* set.
*
* Returns how many values were actually decoded.
*
* This function should only be expected to be faster than
* bitset_extract_setbits
* when the density of the bitset is high.
*
* This function uses AVX2 decoding.
*/
size_t bitset_extract_setbits_avx2(const uint64_t *words, size_t length,
uint32_t *out, size_t outcapacity,
uint32_t base);
size_t bitset_extract_setbits_avx512(const uint64_t *words, size_t length,
uint32_t *out, size_t outcapacity,
uint32_t base);
/*
* Given a bitset containing "length" 64-bit words, write out the position
* of all the set bits to "out", values start at "base".
*
* The "out" pointer should be sufficient to store the actual number of bits
*set.
*
* Returns how many values were actually decoded.
*/
size_t bitset_extract_setbits(const uint64_t *words, size_t length,
uint32_t *out, uint32_t base);
/*
* Given a bitset containing "length" 64-bit words, write out the position
* of all the set bits to "out" as 16-bit integers, values start at "base" (can
*be set to zero)
*
* The "out" pointer should be sufficient to store the actual number of bits
*set.
*
* Returns how many values were actually decoded.
*
* This function should only be expected to be faster than
*bitset_extract_setbits_uint16
* when the density of the bitset is high.
*
* This function uses SSE decoding.
*/
size_t bitset_extract_setbits_sse_uint16(const uint64_t *words, size_t length,
uint16_t *out, size_t outcapacity,
uint16_t base);
size_t bitset_extract_setbits_avx512_uint16(const uint64_t *words,
size_t length, uint16_t *out,
size_t outcapacity, uint16_t base);
/*
* Given a bitset containing "length" 64-bit words, write out the position
* of all the set bits to "out", values start at "base"
* (can be set to zero)
*
* The "out" pointer should be sufficient to store the actual number of bits
*set.
*
* Returns how many values were actually decoded.
*/
size_t bitset_extract_setbits_uint16(const uint64_t *words, size_t length,
uint16_t *out, uint16_t base);
/*
* Given two bitsets containing "length" 64-bit words, write out the position
* of all the common set bits to "out", values start at "base"
* (can be set to zero)
*
* The "out" pointer should be sufficient to store the actual number of bits
* set.
*
* Returns how many values were actually decoded.
*/
size_t bitset_extract_intersection_setbits_uint16(
const uint64_t *__restrict__ words1, const uint64_t *__restrict__ words2,
size_t length, uint16_t *out, uint16_t base);
/*
* Given a bitset having cardinality card, set all bit values in the list (there
* are length of them)
* and return the updated cardinality. This evidently assumes that the bitset
* already contained data.
*/
uint64_t bitset_set_list_withcard(uint64_t *words, uint64_t card,
const uint16_t *list, uint64_t length);
/*
* Given a bitset, set all bit values in the list (there
* are length of them).
*/
void bitset_set_list(uint64_t *words, const uint16_t *list, uint64_t length);
/*
* Given a bitset having cardinality card, unset all bit values in the list
* (there are length of them)
* and return the updated cardinality. This evidently assumes that the bitset
* already contained data.
*/
uint64_t bitset_clear_list(uint64_t *words, uint64_t card, const uint16_t *list,
uint64_t length);
/*
* Given a bitset having cardinality card, toggle all bit values in the list
* (there are length of them)
* and return the updated cardinality. This evidently assumes that the bitset
* already contained data.
*/
uint64_t bitset_flip_list_withcard(uint64_t *words, uint64_t card,
const uint16_t *list, uint64_t length);
void bitset_flip_list(uint64_t *words, const uint16_t *list, uint64_t length);
#if CROARING_IS_X64
/***
* BEGIN Harley-Seal popcount functions.
*/
CROARING_TARGET_AVX2
/**
* Compute the population count of a 256-bit word
* This is not especially fast, but it is convenient as part of other functions.
*/
static inline __m256i popcount256(__m256i v) {
const __m256i lookuppos = _mm256_setr_epi8(
/* 0 */ 4 + 0, /* 1 */ 4 + 1, /* 2 */ 4 + 1, /* 3 */ 4 + 2,
/* 4 */ 4 + 1, /* 5 */ 4 + 2, /* 6 */ 4 + 2, /* 7 */ 4 + 3,
/* 8 */ 4 + 1, /* 9 */ 4 + 2, /* a */ 4 + 2, /* b */ 4 + 3,
/* c */ 4 + 2, /* d */ 4 + 3, /* e */ 4 + 3, /* f */ 4 + 4,
/* 0 */ 4 + 0, /* 1 */ 4 + 1, /* 2 */ 4 + 1, /* 3 */ 4 + 2,
/* 4 */ 4 + 1, /* 5 */ 4 + 2, /* 6 */ 4 + 2, /* 7 */ 4 + 3,
/* 8 */ 4 + 1, /* 9 */ 4 + 2, /* a */ 4 + 2, /* b */ 4 + 3,
/* c */ 4 + 2, /* d */ 4 + 3, /* e */ 4 + 3, /* f */ 4 + 4);
const __m256i lookupneg = _mm256_setr_epi8(
/* 0 */ 4 - 0, /* 1 */ 4 - 1, /* 2 */ 4 - 1, /* 3 */ 4 - 2,
/* 4 */ 4 - 1, /* 5 */ 4 - 2, /* 6 */ 4 - 2, /* 7 */ 4 - 3,
/* 8 */ 4 - 1, /* 9 */ 4 - 2, /* a */ 4 - 2, /* b */ 4 - 3,
/* c */ 4 - 2, /* d */ 4 - 3, /* e */ 4 - 3, /* f */ 4 - 4,
/* 0 */ 4 - 0, /* 1 */ 4 - 1, /* 2 */ 4 - 1, /* 3 */ 4 - 2,
/* 4 */ 4 - 1, /* 5 */ 4 - 2, /* 6 */ 4 - 2, /* 7 */ 4 - 3,
/* 8 */ 4 - 1, /* 9 */ 4 - 2, /* a */ 4 - 2, /* b */ 4 - 3,
/* c */ 4 - 2, /* d */ 4 - 3, /* e */ 4 - 3, /* f */ 4 - 4);
const __m256i low_mask = _mm256_set1_epi8(0x0f);
const __m256i lo = _mm256_and_si256(v, low_mask);
const __m256i hi = _mm256_and_si256(_mm256_srli_epi16(v, 4), low_mask);
const __m256i popcnt1 = _mm256_shuffle_epi8(lookuppos, lo);
const __m256i popcnt2 = _mm256_shuffle_epi8(lookupneg, hi);
return _mm256_sad_epu8(popcnt1, popcnt2);
}
CROARING_UNTARGET_AVX2
CROARING_TARGET_AVX2
/**
* Simple CSA over 256 bits
*/
static inline void CSA(__m256i *h, __m256i *l, __m256i a, __m256i b,
__m256i c) {
const __m256i u = _mm256_xor_si256(a, b);
*h = _mm256_or_si256(_mm256_and_si256(a, b), _mm256_and_si256(u, c));
*l = _mm256_xor_si256(u, c);
}
CROARING_UNTARGET_AVX2
CROARING_TARGET_AVX2
/**
* Fast Harley-Seal AVX population count function
*/
inline static uint64_t avx2_harley_seal_popcount256(const __m256i *data,
const uint64_t size) {
__m256i total = _mm256_setzero_si256();
__m256i ones = _mm256_setzero_si256();
__m256i twos = _mm256_setzero_si256();
__m256i fours = _mm256_setzero_si256();
__m256i eights = _mm256_setzero_si256();
__m256i sixteens = _mm256_setzero_si256();
__m256i twosA, twosB, foursA, foursB, eightsA, eightsB;
const uint64_t limit = size - size % 16;
uint64_t i = 0;
for (; i < limit; i += 16) {
CSA(&twosA, &ones, ones, _mm256_lddqu_si256(data + i),
_mm256_lddqu_si256(data + i + 1));
CSA(&twosB, &ones, ones, _mm256_lddqu_si256(data + i + 2),
_mm256_lddqu_si256(data + i + 3));
CSA(&foursA, &twos, twos, twosA, twosB);
CSA(&twosA, &ones, ones, _mm256_lddqu_si256(data + i + 4),
_mm256_lddqu_si256(data + i + 5));
CSA(&twosB, &ones, ones, _mm256_lddqu_si256(data + i + 6),
_mm256_lddqu_si256(data + i + 7));
CSA(&foursB, &twos, twos, twosA, twosB);
CSA(&eightsA, &fours, fours, foursA, foursB);
CSA(&twosA, &ones, ones, _mm256_lddqu_si256(data + i + 8),
_mm256_lddqu_si256(data + i + 9));
CSA(&twosB, &ones, ones, _mm256_lddqu_si256(data + i + 10),
_mm256_lddqu_si256(data + i + 11));
CSA(&foursA, &twos, twos, twosA, twosB);
CSA(&twosA, &ones, ones, _mm256_lddqu_si256(data + i + 12),
_mm256_lddqu_si256(data + i + 13));
CSA(&twosB, &ones, ones, _mm256_lddqu_si256(data + i + 14),
_mm256_lddqu_si256(data + i + 15));
CSA(&foursB, &twos, twos, twosA, twosB);
CSA(&eightsB, &fours, fours, foursA, foursB);
CSA(&sixteens, &eights, eights, eightsA, eightsB);
total = _mm256_add_epi64(total, popcount256(sixteens));
}
total = _mm256_slli_epi64(total, 4); // * 16
total = _mm256_add_epi64(
total, _mm256_slli_epi64(popcount256(eights), 3)); // += 8 * ...
total = _mm256_add_epi64(
total, _mm256_slli_epi64(popcount256(fours), 2)); // += 4 * ...
total = _mm256_add_epi64(
total, _mm256_slli_epi64(popcount256(twos), 1)); // += 2 * ...
total = _mm256_add_epi64(total, popcount256(ones));
for (; i < size; i++)
total =
_mm256_add_epi64(total, popcount256(_mm256_lddqu_si256(data + i)));
return (uint64_t)(_mm256_extract_epi64(total, 0)) +
(uint64_t)(_mm256_extract_epi64(total, 1)) +
(uint64_t)(_mm256_extract_epi64(total, 2)) +
(uint64_t)(_mm256_extract_epi64(total, 3));
}
CROARING_UNTARGET_AVX2
#define CROARING_AVXPOPCNTFNC(opname, avx_intrinsic) \
static inline uint64_t avx2_harley_seal_popcount256_##opname( \
const __m256i *data1, const __m256i *data2, const uint64_t size) { \
__m256i total = _mm256_setzero_si256(); \
__m256i ones = _mm256_setzero_si256(); \
__m256i twos = _mm256_setzero_si256(); \
__m256i fours = _mm256_setzero_si256(); \
__m256i eights = _mm256_setzero_si256(); \
__m256i sixteens = _mm256_setzero_si256(); \
__m256i twosA, twosB, foursA, foursB, eightsA, eightsB; \
__m256i A1, A2; \
const uint64_t limit = size - size % 16; \
uint64_t i = 0; \
for (; i < limit; i += 16) { \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i), \
_mm256_lddqu_si256(data2 + i)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 1), \
_mm256_lddqu_si256(data2 + i + 1)); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 2), \
_mm256_lddqu_si256(data2 + i + 2)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 3), \
_mm256_lddqu_si256(data2 + i + 3)); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursA, &twos, twos, twosA, twosB); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 4), \
_mm256_lddqu_si256(data2 + i + 4)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 5), \
_mm256_lddqu_si256(data2 + i + 5)); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 6), \
_mm256_lddqu_si256(data2 + i + 6)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 7), \
_mm256_lddqu_si256(data2 + i + 7)); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursB, &twos, twos, twosA, twosB); \
CSA(&eightsA, &fours, fours, foursA, foursB); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 8), \
_mm256_lddqu_si256(data2 + i + 8)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 9), \
_mm256_lddqu_si256(data2 + i + 9)); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 10), \
_mm256_lddqu_si256(data2 + i + 10)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 11), \
_mm256_lddqu_si256(data2 + i + 11)); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursA, &twos, twos, twosA, twosB); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 12), \
_mm256_lddqu_si256(data2 + i + 12)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 13), \
_mm256_lddqu_si256(data2 + i + 13)); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 14), \
_mm256_lddqu_si256(data2 + i + 14)); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 15), \
_mm256_lddqu_si256(data2 + i + 15)); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursB, &twos, twos, twosA, twosB); \
CSA(&eightsB, &fours, fours, foursA, foursB); \
CSA(&sixteens, &eights, eights, eightsA, eightsB); \
total = _mm256_add_epi64(total, popcount256(sixteens)); \
} \
total = _mm256_slli_epi64(total, 4); \
total = _mm256_add_epi64(total, \
_mm256_slli_epi64(popcount256(eights), 3)); \
total = \
_mm256_add_epi64(total, _mm256_slli_epi64(popcount256(fours), 2)); \
total = \
_mm256_add_epi64(total, _mm256_slli_epi64(popcount256(twos), 1)); \
total = _mm256_add_epi64(total, popcount256(ones)); \
for (; i < size; i++) { \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i), \
_mm256_lddqu_si256(data2 + i)); \
total = _mm256_add_epi64(total, popcount256(A1)); \
} \
return (uint64_t)(_mm256_extract_epi64(total, 0)) + \
(uint64_t)(_mm256_extract_epi64(total, 1)) + \
(uint64_t)(_mm256_extract_epi64(total, 2)) + \
(uint64_t)(_mm256_extract_epi64(total, 3)); \
} \
static inline uint64_t avx2_harley_seal_popcount256andstore_##opname( \
const __m256i *__restrict__ data1, const __m256i *__restrict__ data2, \
__m256i *__restrict__ out, const uint64_t size) { \
__m256i total = _mm256_setzero_si256(); \
__m256i ones = _mm256_setzero_si256(); \
__m256i twos = _mm256_setzero_si256(); \
__m256i fours = _mm256_setzero_si256(); \
__m256i eights = _mm256_setzero_si256(); \
__m256i sixteens = _mm256_setzero_si256(); \
__m256i twosA, twosB, foursA, foursB, eightsA, eightsB; \
__m256i A1, A2; \
const uint64_t limit = size - size % 16; \
uint64_t i = 0; \
for (; i < limit; i += 16) { \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i), \
_mm256_lddqu_si256(data2 + i)); \
_mm256_storeu_si256(out + i, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 1), \
_mm256_lddqu_si256(data2 + i + 1)); \
_mm256_storeu_si256(out + i + 1, A2); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 2), \
_mm256_lddqu_si256(data2 + i + 2)); \
_mm256_storeu_si256(out + i + 2, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 3), \
_mm256_lddqu_si256(data2 + i + 3)); \
_mm256_storeu_si256(out + i + 3, A2); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursA, &twos, twos, twosA, twosB); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 4), \
_mm256_lddqu_si256(data2 + i + 4)); \
_mm256_storeu_si256(out + i + 4, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 5), \
_mm256_lddqu_si256(data2 + i + 5)); \
_mm256_storeu_si256(out + i + 5, A2); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 6), \
_mm256_lddqu_si256(data2 + i + 6)); \
_mm256_storeu_si256(out + i + 6, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 7), \
_mm256_lddqu_si256(data2 + i + 7)); \
_mm256_storeu_si256(out + i + 7, A2); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursB, &twos, twos, twosA, twosB); \
CSA(&eightsA, &fours, fours, foursA, foursB); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 8), \
_mm256_lddqu_si256(data2 + i + 8)); \
_mm256_storeu_si256(out + i + 8, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 9), \
_mm256_lddqu_si256(data2 + i + 9)); \
_mm256_storeu_si256(out + i + 9, A2); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 10), \
_mm256_lddqu_si256(data2 + i + 10)); \
_mm256_storeu_si256(out + i + 10, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 11), \
_mm256_lddqu_si256(data2 + i + 11)); \
_mm256_storeu_si256(out + i + 11, A2); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursA, &twos, twos, twosA, twosB); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 12), \
_mm256_lddqu_si256(data2 + i + 12)); \
_mm256_storeu_si256(out + i + 12, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 13), \
_mm256_lddqu_si256(data2 + i + 13)); \
_mm256_storeu_si256(out + i + 13, A2); \
CSA(&twosA, &ones, ones, A1, A2); \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 14), \
_mm256_lddqu_si256(data2 + i + 14)); \
_mm256_storeu_si256(out + i + 14, A1); \
A2 = avx_intrinsic(_mm256_lddqu_si256(data1 + i + 15), \
_mm256_lddqu_si256(data2 + i + 15)); \
_mm256_storeu_si256(out + i + 15, A2); \
CSA(&twosB, &ones, ones, A1, A2); \
CSA(&foursB, &twos, twos, twosA, twosB); \
CSA(&eightsB, &fours, fours, foursA, foursB); \
CSA(&sixteens, &eights, eights, eightsA, eightsB); \
total = _mm256_add_epi64(total, popcount256(sixteens)); \
} \
total = _mm256_slli_epi64(total, 4); \
total = _mm256_add_epi64(total, \
_mm256_slli_epi64(popcount256(eights), 3)); \
total = \
_mm256_add_epi64(total, _mm256_slli_epi64(popcount256(fours), 2)); \
total = \
_mm256_add_epi64(total, _mm256_slli_epi64(popcount256(twos), 1)); \
total = _mm256_add_epi64(total, popcount256(ones)); \
for (; i < size; i++) { \
A1 = avx_intrinsic(_mm256_lddqu_si256(data1 + i), \
_mm256_lddqu_si256(data2 + i)); \
_mm256_storeu_si256(out + i, A1); \
total = _mm256_add_epi64(total, popcount256(A1)); \
} \
return (uint64_t)(_mm256_extract_epi64(total, 0)) + \
(uint64_t)(_mm256_extract_epi64(total, 1)) + \
(uint64_t)(_mm256_extract_epi64(total, 2)) + \
(uint64_t)(_mm256_extract_epi64(total, 3)); \
}
CROARING_TARGET_AVX2
CROARING_AVXPOPCNTFNC(or, _mm256_or_si256)
CROARING_UNTARGET_AVX2
CROARING_TARGET_AVX2
CROARING_AVXPOPCNTFNC(union, _mm256_or_si256)
CROARING_UNTARGET_AVX2
CROARING_TARGET_AVX2
CROARING_AVXPOPCNTFNC(and, _mm256_and_si256)
CROARING_UNTARGET_AVX2
CROARING_TARGET_AVX2
CROARING_AVXPOPCNTFNC(intersection, _mm256_and_si256)
CROARING_UNTARGET_AVX2
CROARING_TARGET_AVX2
CROARING_AVXPOPCNTFNC(xor, _mm256_xor_si256)
CROARING_UNTARGET_AVX2
CROARING_TARGET_AVX2
CROARING_AVXPOPCNTFNC(andnot, _mm256_andnot_si256)
CROARING_UNTARGET_AVX2
#define VPOPCNT_AND_ADD(ptr, i, accu) \
const __m512i v##i = _mm512_loadu_si512((const __m512i *)ptr + i); \
const __m512i p##i = _mm512_popcnt_epi64(v##i); \
accu = _mm512_add_epi64(accu, p##i);
#if CROARING_COMPILER_SUPPORTS_AVX512
CROARING_TARGET_AVX512
static inline uint64_t sum_epu64_256(const __m256i v) {
return (uint64_t)(_mm256_extract_epi64(v, 0)) +
(uint64_t)(_mm256_extract_epi64(v, 1)) +
(uint64_t)(_mm256_extract_epi64(v, 2)) +
(uint64_t)(_mm256_extract_epi64(v, 3));
}
static inline uint64_t simd_sum_epu64(const __m512i v) {
__m256i lo = _mm512_extracti64x4_epi64(v, 0);
__m256i hi = _mm512_extracti64x4_epi64(v, 1);
return sum_epu64_256(lo) + sum_epu64_256(hi);
}
static inline uint64_t avx512_vpopcount(const __m512i *data,
const uint64_t size) {
const uint64_t limit = size - size % 4;
__m512i total = _mm512_setzero_si512();
uint64_t i = 0;
for (; i < limit; i += 4) {
VPOPCNT_AND_ADD(data + i, 0, total);
VPOPCNT_AND_ADD(data + i, 1, total);
VPOPCNT_AND_ADD(data + i, 2, total);
VPOPCNT_AND_ADD(data + i, 3, total);
}
for (; i < size; i++) {
total = _mm512_add_epi64(
total, _mm512_popcnt_epi64(_mm512_loadu_si512(data + i)));
}
return simd_sum_epu64(total);
}
CROARING_UNTARGET_AVX512
#endif
#define CROARING_AVXPOPCNTFNC512(opname, avx_intrinsic) \
static inline uint64_t avx512_harley_seal_popcount512_##opname( \
const __m512i *data1, const __m512i *data2, const uint64_t size) { \
__m512i total = _mm512_setzero_si512(); \
const uint64_t limit = size - size % 4; \
uint64_t i = 0; \
for (; i < limit; i += 4) { \
__m512i a1 = avx_intrinsic(_mm512_loadu_si512(data1 + i), \
_mm512_loadu_si512(data2 + i)); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a1)); \
__m512i a2 = avx_intrinsic(_mm512_loadu_si512(data1 + i + 1), \
_mm512_loadu_si512(data2 + i + 1)); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a2)); \
__m512i a3 = avx_intrinsic(_mm512_loadu_si512(data1 + i + 2), \
_mm512_loadu_si512(data2 + i + 2)); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a3)); \
__m512i a4 = avx_intrinsic(_mm512_loadu_si512(data1 + i + 3), \
_mm512_loadu_si512(data2 + i + 3)); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a4)); \
} \
for (; i < size; i++) { \
__m512i a = avx_intrinsic(_mm512_loadu_si512(data1 + i), \
_mm512_loadu_si512(data2 + i)); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a)); \
} \
return simd_sum_epu64(total); \
} \
static inline uint64_t avx512_harley_seal_popcount512andstore_##opname( \
const __m512i *__restrict__ data1, const __m512i *__restrict__ data2, \
__m512i *__restrict__ out, const uint64_t size) { \
__m512i total = _mm512_setzero_si512(); \
const uint64_t limit = size - size % 4; \
uint64_t i = 0; \
for (; i < limit; i += 4) { \
__m512i a1 = avx_intrinsic(_mm512_loadu_si512(data1 + i), \
_mm512_loadu_si512(data2 + i)); \
_mm512_storeu_si512(out + i, a1); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a1)); \
__m512i a2 = avx_intrinsic(_mm512_loadu_si512(data1 + i + 1), \
_mm512_loadu_si512(data2 + i + 1)); \
_mm512_storeu_si512(out + i + 1, a2); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a2)); \
__m512i a3 = avx_intrinsic(_mm512_loadu_si512(data1 + i + 2), \
_mm512_loadu_si512(data2 + i + 2)); \
_mm512_storeu_si512(out + i + 2, a3); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a3)); \
__m512i a4 = avx_intrinsic(_mm512_loadu_si512(data1 + i + 3), \
_mm512_loadu_si512(data2 + i + 3)); \
_mm512_storeu_si512(out + i + 3, a4); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a4)); \
} \
for (; i < size; i++) { \
__m512i a = avx_intrinsic(_mm512_loadu_si512(data1 + i), \
_mm512_loadu_si512(data2 + i)); \
_mm512_storeu_si512(out + i, a); \
total = _mm512_add_epi64(total, _mm512_popcnt_epi64(a)); \
} \
return simd_sum_epu64(total); \
}
#if CROARING_COMPILER_SUPPORTS_AVX512
CROARING_TARGET_AVX512
CROARING_AVXPOPCNTFNC512(or, _mm512_or_si512)
CROARING_AVXPOPCNTFNC512(union, _mm512_or_si512)
CROARING_AVXPOPCNTFNC512(and, _mm512_and_si512)
CROARING_AVXPOPCNTFNC512(intersection, _mm512_and_si512)
CROARING_AVXPOPCNTFNC512(xor, _mm512_xor_si512)
CROARING_AVXPOPCNTFNC512(andnot, _mm512_andnot_si512)
CROARING_UNTARGET_AVX512
#endif
/***
* END Harley-Seal popcount functions.
*/
#endif // CROARING_IS_X64
#ifdef __cplusplus
}
}
} // extern "C" { namespace roaring { namespace internal
#endif
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic pop
#endif
#endif