static uint64_t popcnt_harley_seal(const __m512i* data, const uint64_t size)
{
__m256i total = _mm256_setzero_si256();
__m512i ones = _mm512_setzero_si512();
__m512i twos = _mm512_setzero_si512();
__m512i fours = _mm512_setzero_si512();
__m512i eights = _mm512_setzero_si512();
__m512i sixteens = _mm512_setzero_si512();
__m512i 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, data[i+0], data[i+1]);
CSA(&twosB, &ones, ones, data[i+2], data[i+3]);
CSA(&foursA, &twos, twos, twosA, twosB);
CSA(&twosA, &ones, ones, data[i+4], data[i+5]);
CSA(&twosB, &ones, ones, data[i+6], data[i+7]);
CSA(&foursB, &twos, twos, twosA, twosB);
CSA(&eightsA,&fours, fours, foursA, foursB);
CSA(&twosA, &ones, ones, data[i+8], data[i+9]);
CSA(&twosB, &ones, ones, data[i+10], data[i+11]);
CSA(&foursA, &twos, twos, twosA, twosB);
CSA(&twosA, &ones, ones, data[i+12], data[i+13]);
CSA(&twosB, &ones, ones, data[i+14], 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, popcount(sixteens));
}
total = _mm256_slli_epi64(total, 4); // * 16
total = _mm256_add_epi64(total, _mm256_slli_epi64(popcount(eights), 3)); // += 8 * ...
total = _mm256_add_epi64(total, _mm256_slli_epi64(popcount(fours), 2)); // += 4 * ...
total = _mm256_add_epi64(total, _mm256_slli_epi64(popcount(twos), 1)); // += 2 * ...
total = _mm256_add_epi64(total, popcount(ones));
for(; i < size; i++) {
total = _mm256_add_epi64(total, popcount(data[i]));
}
return avx2_sum_epu64(total);
}
inline void matrix32x8::transpose(square128& output, int x, int y)
{
for (int j = 0; j < 8; j++)
{
int row = _mm256_movemask_epi8(whole);
whole = _mm256_slli_epi64(whole, 1);
// _mm_movemask_epi8 uses most significant bit, hence +7-j
output.words[8*x+7-j][y] = row;
}
}
static INLINE void quantize(const __m256i *qp, __m256i *c,
const int16_t *iscan_ptr, int log_scale,
tran_low_t *qcoeff, tran_low_t *dqcoeff,
__m256i *eob) {
const __m256i abs_coeff = _mm256_abs_epi32(*c);
__m256i q = _mm256_add_epi32(abs_coeff, qp[0]);
__m256i q_lo = _mm256_mul_epi32(q, qp[1]);
__m256i q_hi = _mm256_srli_epi64(q, 32);
const __m256i qp_hi = _mm256_srli_epi64(qp[1], 32);
q_hi = _mm256_mul_epi32(q_hi, qp_hi);
q_lo = _mm256_srli_epi64(q_lo, 16 - log_scale);
q_hi = _mm256_srli_epi64(q_hi, 16 - log_scale);
q_hi = _mm256_slli_epi64(q_hi, 32);
q = _mm256_or_si256(q_lo, q_hi);
const __m256i abs_s = _mm256_slli_epi32(abs_coeff, 1 + log_scale);
const __m256i mask = _mm256_cmpgt_epi32(qp[2], abs_s);
q = _mm256_andnot_si256(mask, q);
__m256i dq = _mm256_mullo_epi32(q, qp[2]);
dq = _mm256_srai_epi32(dq, log_scale);
q = _mm256_sign_epi32(q, *c);
dq = _mm256_sign_epi32(dq, *c);
_mm256_storeu_si256((__m256i *)qcoeff, q);
_mm256_storeu_si256((__m256i *)dqcoeff, dq);
const __m128i isc = _mm_loadu_si128((const __m128i *)iscan_ptr);
const __m128i zr = _mm_setzero_si128();
const __m128i lo = _mm_unpacklo_epi16(isc, zr);
const __m128i hi = _mm_unpackhi_epi16(isc, zr);
const __m256i iscan =
_mm256_insertf128_si256(_mm256_castsi128_si256(lo), hi, 1);
const __m256i zero = _mm256_setzero_si256();
const __m256i zc = _mm256_cmpeq_epi32(dq, zero);
const __m256i nz = _mm256_cmpeq_epi32(zc, zero);
__m256i cur_eob = _mm256_sub_epi32(iscan, nz);
cur_eob = _mm256_and_si256(cur_eob, nz);
*eob = _mm256_max_epi32(cur_eob, *eob);
}
__m256i test_mm256_slli_epi64(__m256i a) {
// CHECK: @llvm.x86.avx2.pslli.q
return _mm256_slli_epi64(a, 3);
}
__m256i test_mm256_slli_epi64(__m256i a) {
// CHECK-LABEL: test_mm256_slli_epi64
// CHECK: call <4 x i64> @llvm.x86.avx2.pslli.q(<4 x i64> %{{.*}}, i32 %{{.*}})
return _mm256_slli_epi64(a, 3);
}
void nibble_sort_beekman1(uint64_t *buf) {
// already in the right order
//__m256i
// shuf0={0x1716151413121110ULL,0x1f1e1d1c1b1a1918ULL,0x0706050403020100ULL,0x0f0e0d0c0b0a0908ULL};
__m256i shuf1 = {0x1e161c141a121810ULL, 0x1f171d151b131911ULL,
0x0e060c040a020800ULL, 0x0f070d050b030901ULL};
__m256i shuf2 = {0x1d1c151419181110ULL, 0x1f1e17161b1a1312ULL,
0x0d0c050409080100ULL, 0x0f0e07060b0a0302ULL};
// use less instructions below
//__m256i
// shuf3={0x1b1a191813121110ULL,0x1f1e1d1c17161514ULL,0x0b0a090803020100ULL,0x0f0e0d0c07060504ULL};
__m256i shuf4 = {0x101d171615141311ULL, 0x1f1e1b191a181c12ULL,
0x000d070605040301ULL, 0x0f0e0b090a080c02ULL};
__m256i shuf5 = {0x171d151413111810ULL, 0x1f1e16191c1b1a12ULL,
0x070d050403010800ULL, 0x0f0e06090c0b0a02ULL};
__m256i shuf6 = {0x1e17161a15141211ULL, 0x1f101d1c1b191318ULL,
0x0e07060a05040201ULL, 0x0f000d0c0b090308ULL};
__m256i shuf7 = {0x171510161b131911ULL, 0x1f1d181e1c141a12ULL,
0x070500060b030901ULL, 0x0f0d080e0c040a02ULL};
__m256i shuf8 = {0x1715141613121110ULL, 0x1f1e1c1b1a19181dULL,
0x0705040603020100ULL, 0x0f0e0c0b0a09080dULL};
__m256i shuf9 = {0x171c1b1a19181615ULL, 0x1f1e14131211101dULL,
0x070c0b0a09080605ULL, 0x0f0e04030201000dULL};
__m256i nibblemask = _mm256_set1_epi8(0x0f);
for (uint32_t i = 0; i < (1024 / 4); i += 1) {
__m256i r0 = _mm256_loadu_si256(((__m256i *)buf) + i), r1 = r0, r2;
r0 &= nibblemask;
r1 ^= r0;
r1 = _mm256_srli_epi64(r1, 4);
#define sort_and_shuffle(n) \
r2 = _mm256_max_epi8(r0, r1); \
r0 = _mm256_min_epi8(r0, r1); \
r1 = (__m256i)_mm256_shuffle_pd((__m256d)r0, (__m256d)r2, 0b0000); \
r2 = (__m256i)_mm256_shuffle_pd((__m256d)r0, (__m256d)r2, 0b1111); \
r1 = _mm256_shuffle_epi8(r1, shuf##n); \
r2 = _mm256_shuffle_epi8(r2, shuf##n); \
r0 = (__m256i)_mm256_shuffle_pd((__m256d)r1, (__m256d)r2, 0b0000); \
r1 = (__m256i)_mm256_shuffle_pd((__m256d)r1, (__m256d)r2, 0b1111)
sort_and_shuffle(1);
sort_and_shuffle(2);
{ // sort_and_shuffle(3);
r2 = _mm256_max_epi8(r0, r1);
r0 = _mm256_min_epi8(r0, r1);
r1 = (__m256i)_mm256_unpacklo_ps((__m256)r0, (__m256)r2);
r2 = (__m256i)_mm256_unpackhi_ps((__m256)r0, (__m256)r2);
r0 = (__m256i)_mm256_shuffle_pd((__m256d)r1, (__m256d)r2, 0b1111);
r1 = (__m256i)_mm256_shuffle_pd((__m256d)r1, (__m256d)r2, 0b0000);
}
sort_and_shuffle(4);
sort_and_shuffle(5);
sort_and_shuffle(6);
sort_and_shuffle(7);
sort_and_shuffle(8);
sort_and_shuffle(9);
r1 = _mm256_slli_epi64(r1, 4);
_mm256_storeu_si256(((__m256i *)buf) + i, r1 | r0);
}
}
static FORCE_INLINE void FlowInter_8px_AVX2(
int w, PixelType *pdst,
const PixelType *prefB, const PixelType *prefF,
const int16_t *VXFullB, const int16_t *VXFullF,
const int16_t *VYFullB, const int16_t *VYFullF,
const uint8_t *MaskB, const uint8_t *MaskF,
int nPelLog,
const __m256i &dwords_time256, const __m256i &dwords_256_time256,
const __m256i &dwords_ref_pitch, const __m256i &dwords_hoffsets) {
__m256i dwords_w = _mm256_add_epi32(_mm256_set1_epi32(w << nPelLog), dwords_hoffsets);
__m256i dstF = lookup_AVX2(VXFullF, VYFullF, prefF, w, dwords_time256, dwords_ref_pitch, dwords_w);
__m256i dstB = lookup_AVX2(VXFullB, VYFullB, prefB, w, dwords_256_time256, dwords_ref_pitch, dwords_w);
__m256i dstF0 = _mm256_i32gather_epi32((const int *)prefF, dwords_w, sizeof(PixelType));
__m256i dstB0 = _mm256_i32gather_epi32((const int *)prefB, dwords_w, sizeof(PixelType));
dstF0 = _mm256_and_si256(dstF0, _mm256_set1_epi32((1 << (sizeof(PixelType) * 8)) - 1));
dstB0 = _mm256_and_si256(dstB0, _mm256_set1_epi32((1 << (sizeof(PixelType) * 8)) - 1));
__m256i maskf = _mm256_cvtepu8_epi32(_mm_loadl_epi64((const __m128i *)&MaskF[w]));
__m256i maskb = _mm256_cvtepu8_epi32(_mm_loadl_epi64((const __m128i *)&MaskB[w]));
const __m256i dwords_255 = _mm256_set1_epi32(255);
__m256i maskf_inv = _mm256_sub_epi32(dwords_255, maskf);
__m256i maskb_inv = _mm256_sub_epi32(dwords_255, maskb);
__m256i dstF_maskf_inv, dstB_maskb_inv, dstF0_maskb, dstB0_maskf;
if (sizeof(PixelType) == 1) {
dstF_maskf_inv = _mm256_mullo_epi16(dstF, maskf_inv);
dstB_maskb_inv = _mm256_mullo_epi16(dstB, maskb_inv);
dstF0_maskb = _mm256_mullo_epi16(dstF0, maskb);
dstB0_maskf = _mm256_mullo_epi16(dstB0, maskf);
} else {
dstF_maskf_inv = _mm256_mullo_epi32(dstF, maskf_inv);
dstB_maskb_inv = _mm256_mullo_epi32(dstB, maskb_inv);
dstF0_maskb = _mm256_mullo_epi32(dstF0, maskb);
dstB0_maskf = _mm256_mullo_epi32(dstB0, maskf);
}
__m256i f = _mm256_add_epi32(dstF0_maskb, dstB_maskb_inv);
__m256i b = _mm256_add_epi32(dstB0_maskf, dstF_maskf_inv);
if (sizeof(PixelType) == 1) {
f = _mm256_mullo_epi32(f, maskf);
b = _mm256_mullo_epi32(b, maskb);
f = _mm256_add_epi32(f, dwords_255);
b = _mm256_add_epi32(b, dwords_255);
f = _mm256_srai_epi32(f, 8);
b = _mm256_srai_epi32(b, 8);
} else {
const __m256i qwords_255 = _mm256_set1_epi64x(255);
__m256i tempf = _mm256_mul_epu32(f, maskf);
__m256i tempb = _mm256_mul_epu32(b, maskb);
tempf = _mm256_add_epi64(tempf, qwords_255);
tempb = _mm256_add_epi64(tempb, qwords_255);
tempf = _mm256_srli_epi64(tempf, 8);
tempb = _mm256_srli_epi64(tempb, 8);
f = _mm256_srli_epi64(f, 32);
b = _mm256_srli_epi64(b, 32);
f = _mm256_mul_epu32(f, _mm256_srli_epi64(maskf, 32));
b = _mm256_mul_epu32(b, _mm256_srli_epi64(maskb, 32));
f = _mm256_add_epi64(f, qwords_255);
b = _mm256_add_epi64(b, qwords_255);
f = _mm256_srli_epi64(f, 8);
b = _mm256_srli_epi64(b, 8);
f = _mm256_or_si256(tempf, _mm256_slli_epi64(f, 32));
b = _mm256_or_si256(tempb, _mm256_slli_epi64(b, 32));
}
f = _mm256_add_epi32(f, dstF_maskf_inv);
b = _mm256_add_epi32(b, dstB_maskb_inv);
f = _mm256_add_epi32(f, dwords_255);
b = _mm256_add_epi32(b, dwords_255);
f = _mm256_srai_epi32(f, 8);
b = _mm256_srai_epi32(b, 8);
if (sizeof(PixelType) == 1) {
f = _mm256_madd_epi16(f, dwords_256_time256);
b = _mm256_madd_epi16(b, dwords_time256);
} else {
f = _mm256_mullo_epi32(f, dwords_256_time256);
b = _mm256_mullo_epi32(b, dwords_time256);
}
__m256i dst = _mm256_add_epi32(f, b);
dst = _mm256_srai_epi32(dst, 8);
dst = _mm256_packus_epi32(dst, dst);
dst = _mm256_permute4x64_epi64(dst, 0xe8); // 0b11101000 - copy third qword to second qword
__m128i dst128 = _mm256_castsi256_si128(dst);
if (sizeof(PixelType) == 1) {
dst128 = _mm_packus_epi16(dst128, dst128);
_mm_storel_epi64((__m128i *)&pdst[w], dst128);
} else {
_mm_storeu_si128((__m128i *)&pdst[w], dst128);
}
}
void extern
avx2_test (void)
{
x = _mm256_slli_epi64 (x, 13);
}
