Add LD64 suffix in QS8 GEMM/IGEMM microkernels
LD64 denotes that weights are loaded 64 bits at a time and sign-extended to 128
bits
PiperOrigin-RevId: 324305250
diff --git a/src/qs8-igemm/gen/4x4c2-minmax-sse2-ld64.c b/src/qs8-igemm/gen/4x4c2-minmax-sse2-ld64.c
new file mode 100644
index 0000000..2f581b4
--- /dev/null
+++ b/src/qs8-igemm/gen/4x4c2-minmax-sse2-ld64.c
@@ -0,0 +1,360 @@
+// Auto-generated file. Do not edit!
+// Template: src/qs8-igemm/MRx4c2-minmax-sse.c.in
+// Generator: tools/xngen
+//
+// Copyright 2020 Google LLC
+//
+// This source code is licensed under the BSD-style license found in the
+// LICENSE file in the root directory of this source tree.
+
+#include <assert.h>
+
+#include <emmintrin.h>
+
+#include <xnnpack/igemm.h>
+
+
+void xnn_qs8_igemm_minmax_ukernel_4x4c2__sse2_ld64(
+ size_t mr,
+ size_t nc,
+ size_t kc,
+ size_t ks,
+ const int8_t** restrict a,
+ const void* restrict w,
+ int8_t* restrict c,
+ size_t cm_stride,
+ size_t cn_stride,
+ size_t a_offset,
+ const int8_t* zero,
+ const union xnn_qs8_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
+{
+ assert(mr != 0);
+ assert(mr <= 4);
+ assert(nc != 0);
+ assert(kc != 0);
+ assert(ks != 0);
+ assert(ks % (4 * sizeof(void*)) == 0);
+ assert(a_offset % sizeof(int8_t) == 0);
+ assert(a != NULL);
+ assert(w != NULL);
+ assert(c != NULL);
+
+ int8_t* c0 = c;
+ int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
+ if XNN_UNPREDICTABLE(mr < 2) {
+ c1 = c0;
+ }
+ int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
+ if XNN_UNPREDICTABLE(mr <= 2) {
+ c2 = c1;
+ }
+ int8_t* c3 = (int8_t*) ((uintptr_t) c2 + cm_stride);
+ if XNN_UNPREDICTABLE(mr != 4) {
+ c3 = c2;
+ }
+
+ do {
+ __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
+ __m128i vacc1x0123 = vacc0x0123;
+ __m128i vacc2x0123 = vacc0x0123;
+ __m128i vacc3x0123 = vacc0x0123;
+ w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
+
+ size_t p = ks;
+ do {
+ const int8_t* restrict a0 = a[0];
+ if XNN_UNPREDICTABLE(a0 != zero) {
+ a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
+ }
+ const int8_t* restrict a1 = a[1];
+ if XNN_UNPREDICTABLE(a1 != zero) {
+ a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
+ }
+ const int8_t* restrict a2 = a[2];
+ if XNN_UNPREDICTABLE(a2 != zero) {
+ a2 = (const int8_t*) ((uintptr_t) a2 + a_offset);
+ }
+ const int8_t* restrict a3 = a[3];
+ if XNN_UNPREDICTABLE(a3 != zero) {
+ a3 = (const int8_t*) ((uintptr_t) a3 + a_offset);
+ }
+ a += 4;
+
+ size_t k = kc;
+ while (k >= 8 * sizeof(int8_t)) {
+ const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
+ const __m128i vxa0 = _mm_unpacklo_epi8(va0, _mm_cmpgt_epi8(_mm_setzero_si128(), va0));
+ a0 += 8;
+ const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
+ const __m128i vxa1 = _mm_unpacklo_epi8(va1, _mm_cmpgt_epi8(_mm_setzero_si128(), va1));
+ a1 += 8;
+ const __m128i va2 = _mm_loadl_epi64((const __m128i*) a2);
+ const __m128i vxa2 = _mm_unpacklo_epi8(va2, _mm_cmpgt_epi8(_mm_setzero_si128(), va2));
+ a2 += 8;
+ const __m128i va3 = _mm_loadl_epi64((const __m128i*) a3);
+ const __m128i vxa3 = _mm_unpacklo_epi8(va3, _mm_cmpgt_epi8(_mm_setzero_si128(), va3));
+ a3 += 8;
+
+ const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
+ const __m128i vxb0 = _mm_unpacklo_epi8(vb0, _mm_cmpgt_epi8(_mm_setzero_si128(), vb0));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+ const __m128i vb1 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 8));
+ const __m128i vxb1 = _mm_unpacklo_epi8(vb1, _mm_cmpgt_epi8(_mm_setzero_si128(), vb1));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+ const __m128i vb2 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16));
+ const __m128i vxb2 = _mm_unpacklo_epi8(vb2, _mm_cmpgt_epi8(_mm_setzero_si128(), vb2));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+ const __m128i vb3 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 24));
+ const __m128i vxb3 = _mm_unpacklo_epi8(vb3, _mm_cmpgt_epi8(_mm_setzero_si128(), vb3));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+
+ w = (const void*) ((uintptr_t) w + 32);
+ k -= 8 * sizeof(int8_t);
+ }
+ if (k != 0) {
+ const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
+ const __m128i vxa0 = _mm_unpacklo_epi8(va0, _mm_cmpgt_epi8(_mm_setzero_si128(), va0));
+ a0 = (const int8_t*) ((uintptr_t) a0 + k);
+ const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
+ const __m128i vxa1 = _mm_unpacklo_epi8(va1, _mm_cmpgt_epi8(_mm_setzero_si128(), va1));
+ a1 = (const int8_t*) ((uintptr_t) a1 + k);
+ const __m128i va2 = _mm_loadl_epi64((const __m128i*) a2);
+ const __m128i vxa2 = _mm_unpacklo_epi8(va2, _mm_cmpgt_epi8(_mm_setzero_si128(), va2));
+ a2 = (const int8_t*) ((uintptr_t) a2 + k);
+ const __m128i va3 = _mm_loadl_epi64((const __m128i*) a3);
+ const __m128i vxa3 = _mm_unpacklo_epi8(va3, _mm_cmpgt_epi8(_mm_setzero_si128(), va3));
+ a3 = (const int8_t*) ((uintptr_t) a3 + k);
+
+ const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
+ w = (const void*) ((uintptr_t) w + 8);
+ const __m128i vxb0 = _mm_unpacklo_epi8(vb0, _mm_cmpgt_epi8(_mm_setzero_si128(), vb0));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
+
+ if (k > 2 * sizeof(int8_t)) {
+ const __m128i vb1 = _mm_loadl_epi64((const __m128i*) w);
+ w = (const void*) ((uintptr_t) w + 8);
+ const __m128i vxb1 = _mm_unpacklo_epi8(vb1, _mm_cmpgt_epi8(_mm_setzero_si128(), vb1));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
+
+ if (k > 4 * sizeof(int8_t)) {
+ const __m128i vb2 = _mm_loadl_epi64((const __m128i*) w);
+ w = (const void*) ((uintptr_t) w + 8);
+ const __m128i vxb2 = _mm_unpacklo_epi8(vb2, _mm_cmpgt_epi8(_mm_setzero_si128(), vb2));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
+
+ if (k > 6 * sizeof(int8_t)) {
+ const __m128i vb3 = _mm_loadl_epi64((const __m128i*) w);
+ w = (const void*) ((uintptr_t) w + 8);
+ const __m128i vxb3 = _mm_unpacklo_epi8(vb3, _mm_cmpgt_epi8(_mm_setzero_si128(), vb3));
+
+ vacc0x0123 = _mm_add_epi32(vacc0x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+ vacc1x0123 = _mm_add_epi32(vacc1x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+ vacc2x0123 = _mm_add_epi32(vacc2x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+ vacc3x0123 = _mm_add_epi32(vacc3x0123,
+ _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
+ }
+ }
+ }
+ }
+ p -= 4 * sizeof(void*);
+ } while (p != 0);
+
+ const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
+ const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
+
+ const __m128i vnmask0x0123 = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc0x0123);
+ const __m128i vnmask1x0123 = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc1x0123);
+ const __m128i vnmask2x0123 = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc2x0123);
+ const __m128i vnmask3x0123 = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc3x0123);
+
+ const __m128i vabsacc0x0123 = _mm_sub_epi32(_mm_xor_si128(vacc0x0123, vnmask0x0123), vnmask0x0123);
+ const __m128i vabsacc1x0123 = _mm_sub_epi32(_mm_xor_si128(vacc1x0123, vnmask1x0123), vnmask1x0123);
+ const __m128i vabsacc2x0123 = _mm_sub_epi32(_mm_xor_si128(vacc2x0123, vnmask2x0123), vnmask2x0123);
+ const __m128i vabsacc3x0123 = _mm_sub_epi32(_mm_xor_si128(vacc3x0123, vnmask3x0123), vnmask3x0123);
+
+ const __m128i vabsacc0x1032 = _mm_shuffle_epi32(vabsacc0x0123, _MM_SHUFFLE(2, 3, 0, 1));
+ const __m128i vabsacc1x1032 = _mm_shuffle_epi32(vabsacc1x0123, _MM_SHUFFLE(2, 3, 0, 1));
+ const __m128i vabsacc2x1032 = _mm_shuffle_epi32(vabsacc2x0123, _MM_SHUFFLE(2, 3, 0, 1));
+ const __m128i vabsacc3x1032 = _mm_shuffle_epi32(vabsacc3x0123, _MM_SHUFFLE(2, 3, 0, 1));
+
+ const __m128i vabsprod0x02 = _mm_mul_epu32(vabsacc0x0123, vmultiplier);
+ const __m128i vabsprod1x02 = _mm_mul_epu32(vabsacc1x0123, vmultiplier);
+ const __m128i vabsprod2x02 = _mm_mul_epu32(vabsacc2x0123, vmultiplier);
+ const __m128i vabsprod3x02 = _mm_mul_epu32(vabsacc3x0123, vmultiplier);
+
+ const __m128i vnmask0x02 = _mm_shuffle_epi32(vnmask0x0123, _MM_SHUFFLE(2, 2, 0, 0));
+ const __m128i vnmask1x02 = _mm_shuffle_epi32(vnmask1x0123, _MM_SHUFFLE(2, 2, 0, 0));
+ const __m128i vnmask2x02 = _mm_shuffle_epi32(vnmask2x0123, _MM_SHUFFLE(2, 2, 0, 0));
+ const __m128i vnmask3x02 = _mm_shuffle_epi32(vnmask3x0123, _MM_SHUFFLE(2, 2, 0, 0));
+
+ const __m128i vprod0x02 = _mm_sub_epi64(_mm_xor_si128(vabsprod0x02, vnmask0x02), vnmask0x02);
+ const __m128i vprod1x02 = _mm_sub_epi64(_mm_xor_si128(vabsprod1x02, vnmask1x02), vnmask1x02);
+ const __m128i vprod2x02 = _mm_sub_epi64(_mm_xor_si128(vabsprod2x02, vnmask2x02), vnmask2x02);
+ const __m128i vprod3x02 = _mm_sub_epi64(_mm_xor_si128(vabsprod3x02, vnmask3x02), vnmask3x02);
+
+ const __m128i vq31prod0x02 = _mm_srli_epi64(_mm_add_epi64(vprod0x02, vrounding), 31);
+ const __m128i vq31prod1x02 = _mm_srli_epi64(_mm_add_epi64(vprod1x02, vrounding), 31);
+ const __m128i vq31prod2x02 = _mm_srli_epi64(_mm_add_epi64(vprod2x02, vrounding), 31);
+ const __m128i vq31prod3x02 = _mm_srli_epi64(_mm_add_epi64(vprod3x02, vrounding), 31);
+
+ const __m128i vabsprod0x13 = _mm_mul_epu32(vabsacc0x1032, vmultiplier);
+ const __m128i vabsprod1x13 = _mm_mul_epu32(vabsacc1x1032, vmultiplier);
+ const __m128i vabsprod2x13 = _mm_mul_epu32(vabsacc2x1032, vmultiplier);
+ const __m128i vabsprod3x13 = _mm_mul_epu32(vabsacc3x1032, vmultiplier);
+
+ const __m128i vnmask0x13 = _mm_shuffle_epi32(vnmask0x0123, _MM_SHUFFLE(3, 3, 1, 1));
+ const __m128i vnmask1x13 = _mm_shuffle_epi32(vnmask1x0123, _MM_SHUFFLE(3, 3, 1, 1));
+ const __m128i vnmask2x13 = _mm_shuffle_epi32(vnmask2x0123, _MM_SHUFFLE(3, 3, 1, 1));
+ const __m128i vnmask3x13 = _mm_shuffle_epi32(vnmask3x0123, _MM_SHUFFLE(3, 3, 1, 1));
+
+ const __m128i vprod0x13 = _mm_sub_epi64(_mm_xor_si128(vabsprod0x13, vnmask0x13), vnmask0x13);
+ const __m128i vprod1x13 = _mm_sub_epi64(_mm_xor_si128(vabsprod1x13, vnmask1x13), vnmask1x13);
+ const __m128i vprod2x13 = _mm_sub_epi64(_mm_xor_si128(vabsprod2x13, vnmask2x13), vnmask2x13);
+ const __m128i vprod3x13 = _mm_sub_epi64(_mm_xor_si128(vabsprod3x13, vnmask3x13), vnmask3x13);
+
+ const __m128i vq31prod0x13 = _mm_srli_epi64(_mm_add_epi64(vprod0x13, vrounding), 31);
+ const __m128i vq31prod1x13 = _mm_srli_epi64(_mm_add_epi64(vprod1x13, vrounding), 31);
+ const __m128i vq31prod2x13 = _mm_srli_epi64(_mm_add_epi64(vprod2x13, vrounding), 31);
+ const __m128i vq31prod3x13 = _mm_srli_epi64(_mm_add_epi64(vprod3x13, vrounding), 31);
+
+ const __m128i vq31prod0x0213 = _mm_castps_si128(_mm_shuffle_ps(
+ _mm_castsi128_ps(vq31prod0x02), _mm_castsi128_ps(vq31prod0x13), _MM_SHUFFLE(2, 0, 2, 0)));
+ const __m128i vq31prod1x0213 = _mm_castps_si128(_mm_shuffle_ps(
+ _mm_castsi128_ps(vq31prod1x02), _mm_castsi128_ps(vq31prod1x13), _MM_SHUFFLE(2, 0, 2, 0)));
+ const __m128i vq31prod2x0213 = _mm_castps_si128(_mm_shuffle_ps(
+ _mm_castsi128_ps(vq31prod2x02), _mm_castsi128_ps(vq31prod2x13), _MM_SHUFFLE(2, 0, 2, 0)));
+ const __m128i vq31prod3x0213 = _mm_castps_si128(_mm_shuffle_ps(
+ _mm_castsi128_ps(vq31prod3x02), _mm_castsi128_ps(vq31prod3x13), _MM_SHUFFLE(2, 0, 2, 0)));
+
+ const __m128i vq31prod0x0123 = _mm_shuffle_epi32(vq31prod0x0213, _MM_SHUFFLE(3, 1, 2, 0));
+ const __m128i vq31prod1x0123 = _mm_shuffle_epi32(vq31prod1x0213, _MM_SHUFFLE(3, 1, 2, 0));
+ const __m128i vq31prod2x0123 = _mm_shuffle_epi32(vq31prod2x0213, _MM_SHUFFLE(3, 1, 2, 0));
+ const __m128i vq31prod3x0123 = _mm_shuffle_epi32(vq31prod3x0213, _MM_SHUFFLE(3, 1, 2, 0));
+
+ const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
+ const __m128i vrem0x0123 =
+ _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
+ const __m128i vrem1x0123 =
+ _mm_add_epi32(_mm_and_si128(vq31prod1x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod1x0123));
+ const __m128i vrem2x0123 =
+ _mm_add_epi32(_mm_and_si128(vq31prod2x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod2x0123));
+ const __m128i vrem3x0123 =
+ _mm_add_epi32(_mm_and_si128(vq31prod3x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod3x0123));
+
+ const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
+ const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
+ vacc0x0123 =
+ _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
+ vacc1x0123 =
+ _mm_sub_epi32(_mm_sra_epi32(vq31prod1x0123, vshift), _mm_cmpgt_epi32(vrem1x0123, vremainder_threshold));
+ vacc2x0123 =
+ _mm_sub_epi32(_mm_sra_epi32(vq31prod2x0123, vshift), _mm_cmpgt_epi32(vrem2x0123, vremainder_threshold));
+ vacc3x0123 =
+ _mm_sub_epi32(_mm_sra_epi32(vq31prod3x0123, vshift), _mm_cmpgt_epi32(vrem3x0123, vremainder_threshold));
+
+ const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
+ __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
+ __m128i vacc23x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc2x0123, vacc3x0123), voutput_zero_point);
+
+ const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
+ const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
+ vacc01x0123 = _mm_min_epi16(_mm_max_epi16(vacc01x0123, voutput_min), voutput_max);
+ vacc23x0123 = _mm_min_epi16(_mm_max_epi16(vacc23x0123, voutput_min), voutput_max);
+
+ __m128i vout = _mm_packs_epi16(vacc01x0123, vacc23x0123);
+
+ if (nc >= 4) {
+ *((uint32_t*) c3) = (uint32_t) _mm_cvtsi128_si32(_mm_shuffle_epi32(vout, _MM_SHUFFLE(3, 3, 3, 3)));
+ c3 = (int8_t*) ((uintptr_t) c3 + cn_stride);
+ *((uint32_t*) c2) = (uint32_t) _mm_cvtsi128_si32(_mm_shuffle_epi32(vout, _MM_SHUFFLE(2, 2, 2, 2)));
+ c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
+ *((uint32_t*) c1) = (uint32_t) _mm_cvtsi128_si32(_mm_shuffle_epi32(vout, _MM_SHUFFLE(1, 1, 1, 1)));
+ c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
+ *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
+ c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
+
+ a = (const int8_t**restrict) ((uintptr_t) a - ks);
+
+ nc -= 4;
+ } else {
+ if (nc & 2) {
+ *((uint16_t*) c3) = (uint16_t) _mm_extract_epi16(vout, 6);
+ c3 += 2;
+ *((uint16_t*) c2) = (uint16_t) _mm_extract_epi16(vout, 4);
+ c2 += 2;
+ *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout, 2);
+ c1 += 2;
+ *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
+ c0 += 2;
+ vout = _mm_srli_epi32(vout, 16);
+ }
+ if (nc & 1) {
+ *((int8_t*) c3) = (int8_t) _mm_extract_epi16(vout, 6);
+ *((int8_t*) c2) = (int8_t) _mm_extract_epi16(vout, 4);
+ *((int8_t*) c1) = (int8_t) _mm_extract_epi16(vout, 2);
+ *((int8_t*) c0) = (int8_t) _mm_cvtsi128_si32(vout);
+ }
+
+ nc = 0;
+ }
+ } while (nc != 0);
+}