Rename Q8 microkernels and operators to QU8
- Indicate unsigned datatype
- Make space for QS8 with signed quantization
PiperOrigin-RevId: 321275708
diff --git a/src/qu8-igemm/4x8-minmax-neon.c b/src/qu8-igemm/4x8-minmax-neon.c
new file mode 100644
index 0000000..93cfea1
--- /dev/null
+++ b/src/qu8-igemm/4x8-minmax-neon.c
@@ -0,0 +1,411 @@
+// Copyright (c) Facebook, Inc. and its affiliates.
+// All rights reserved.
+//
+// Copyright 2019 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 <arm_neon.h>
+
+#include <xnnpack/common.h>
+#include <xnnpack/igemm.h>
+
+
+void xnn_qu8_igemm_minmax_ukernel_4x8__neon(
+ size_t mr,
+ size_t nc,
+ size_t kc,
+ size_t ks,
+ const uint8_t** restrict a,
+ const void* restrict w,
+ uint8_t* restrict c,
+ size_t cm_stride,
+ size_t cn_stride,
+ size_t a_offset,
+ const uint8_t* zero,
+ const union xnn_qu8_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);
+
+ uint8_t* c0 = c;
+ uint8_t* c1 = (uint8_t*) ((uintptr_t) c0 + cm_stride);
+ if XNN_UNPREDICTABLE(mr < 2) {
+ c1 = c0;
+ }
+ uint8_t* c2 = (uint8_t*) ((uintptr_t) c1 + cm_stride);
+ if XNN_UNPREDICTABLE(mr <= 2) {
+ c2 = c1;
+ }
+ uint8_t* c3 = (uint8_t*) ((uintptr_t) c2 + cm_stride);
+ if (mr != 4) {
+ c3 = c2;
+ }
+
+ const uint8x8_t vb_zero_point = vld1_dup_u8((const uint8_t*) ¶ms->neon.kernel_zero_point);
+
+ do {
+ int32x4_t vacc0x0123 = vld1q_s32(w); w = (void*) ((uintptr_t) w + sizeof(int32x4_t));
+ int32x4_t vacc0x4567 = vld1q_s32(w); w = (void*) ((uintptr_t) w + sizeof(int32x4_t));
+ int32x4_t vacc1x0123 = vacc0x0123;
+ int32x4_t vacc1x4567 = vacc0x4567;
+ int32x4_t vacc2x0123 = vacc0x0123;
+ int32x4_t vacc2x4567 = vacc0x4567;
+ int32x4_t vacc3x0123 = vacc0x0123;
+ int32x4_t vacc3x4567 = vacc0x4567;
+
+ size_t p = ks;
+ do {
+ const uint8_t* restrict a0 = a[0];
+ if XNN_UNPREDICTABLE(a0 != zero) {
+ a0 = (const uint8_t*) ((uintptr_t) a0 + a_offset);
+ }
+ const uint8_t* restrict a1 = a[1];
+ if XNN_UNPREDICTABLE(a1 != zero) {
+ a1 = (const uint8_t*) ((uintptr_t) a1 + a_offset);
+ }
+ const uint8_t* restrict a2 = a[2];
+ if XNN_UNPREDICTABLE(a2 != zero) {
+ a2 = (const uint8_t*) ((uintptr_t) a2 + a_offset);
+ }
+ const uint8_t* restrict a3 = a[3];
+ if XNN_UNPREDICTABLE(a3 != zero) {
+ a3 = (const uint8_t*) ((uintptr_t) a3 + a_offset);
+ }
+ a += 4;
+
+ size_t k = kc;
+ while (k >= 8 * sizeof(uint8_t)) {
+ const uint8x8_t va0 = vld1_u8(a0); a0 += 8;
+ const uint8x8_t va1 = vld1_u8(a1); a1 += 8;
+ const uint8x8_t va2 = vld1_u8(a2); a2 += 8;
+ const uint8x8_t va3 = vld1_u8(a3); a3 += 8;
+ const int16x8_t vxa0 = vreinterpretq_s16_u16(vmovl_u8(va0));
+ const int16x8_t vxa1 = vreinterpretq_s16_u16(vmovl_u8(va1));
+ const int16x8_t vxa2 = vreinterpretq_s16_u16(vmovl_u8(va2));
+ const int16x8_t vxa3 = vreinterpretq_s16_u16(vmovl_u8(va3));
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 0);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 0);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 0);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 0);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 0);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 0);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 0);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 0);
+ }
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 1);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 1);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 1);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 1);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 1);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 1);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 1);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 1);
+ }
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 2);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 2);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 2);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 2);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 2);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 2);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 2);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 2);
+ }
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 3);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 3);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 3);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 3);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 3);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 3);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 3);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 3);
+ }
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa0), 0);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa0), 0);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa1), 0);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa1), 0);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa2), 0);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa2), 0);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa3), 0);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa3), 0);
+ }
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa0), 1);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa0), 1);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa1), 1);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa1), 1);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa2), 1);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa2), 1);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa3), 1);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa3), 1);
+ }
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa0), 2);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa0), 2);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa1), 2);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa1), 2);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa2), 2);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa2), 2);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa3), 2);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa3), 2);
+ }
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa0), 3);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa0), 3);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa1), 3);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa1), 3);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa2), 3);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa2), 3);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa3), 3);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa3), 3);
+ }
+
+ k -= 8 * sizeof(uint8_t);
+ }
+ if (k != 0) {
+ const uint8x8_t va0 = vld1_u8(a0);
+ const uint8x8_t va1 = vld1_u8(a1);
+ const uint8x8_t va2 = vld1_u8(a2);
+ const uint8x8_t va3 = vld1_u8(a3);
+ const int16x8_t vxa0 = vreinterpretq_s16_u16(vmovl_u8(va0));
+ const int16x8_t vxa1 = vreinterpretq_s16_u16(vmovl_u8(va1));
+ const int16x8_t vxa2 = vreinterpretq_s16_u16(vmovl_u8(va2));
+ const int16x8_t vxa3 = vreinterpretq_s16_u16(vmovl_u8(va3));
+
+ {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 0);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 0);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 0);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 0);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 0);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 0);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 0);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 0);
+ }
+
+ if (k >= 2 * sizeof(uint8_t)) {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 1);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 1);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 1);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 1);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 1);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 1);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 1);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 1);
+
+ if (k > 2 * sizeof(uint8_t)) {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 2);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 2);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 2);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 2);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 2);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 2);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 2);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 2);
+
+ if (k >= 4 * sizeof(uint8_t)) {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa0), 3);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa0), 3);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa1), 3);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa1), 3);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa2), 3);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa2), 3);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_low_s16(vxa3), 3);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_low_s16(vxa3), 3);
+
+ if (k > 4 * sizeof(uint8_t)) {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa0), 0);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa0), 0);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa1), 0);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa1), 0);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa2), 0);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa2), 0);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa3), 0);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa3), 0);
+
+ if (k >= 6 * sizeof(uint8_t)) {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa0), 1);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa0), 1);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa1), 1);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa1), 1);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa2), 1);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa2), 1);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa3), 1);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa3), 1);
+
+ if (k > 6 * sizeof(uint8_t)) {
+ const uint8x8_t vb01234567 = vld1_u8(w); w = (void*) ((uintptr_t) w + sizeof(uint8x8_t));
+ const int16x8_t vxb01234567 = vreinterpretq_s16_u16(vsubl_u8(vb01234567, vb_zero_point));
+
+ vacc0x0123 = vmlal_lane_s16(vacc0x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa0), 2);
+ vacc0x4567 = vmlal_lane_s16(vacc0x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa0), 2);
+ vacc1x0123 = vmlal_lane_s16(vacc1x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa1), 2);
+ vacc1x4567 = vmlal_lane_s16(vacc1x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa1), 2);
+ vacc2x0123 = vmlal_lane_s16(vacc2x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa2), 2);
+ vacc2x4567 = vmlal_lane_s16(vacc2x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa2), 2);
+ vacc3x0123 = vmlal_lane_s16(vacc3x0123, vget_low_s16(vxb01234567), vget_high_s16(vxa3), 2);
+ vacc3x4567 = vmlal_lane_s16(vacc3x4567, vget_high_s16(vxb01234567), vget_high_s16(vxa3), 2);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ p -= 4 * sizeof(void*);
+ } while (p != 0);
+
+ const int32x4_t vmultiplier = vld1q_dup_s32(¶ms->neon.multiplier);
+ vacc0x0123 = vqrdmulhq_s32(vacc0x0123, vmultiplier);
+ vacc0x4567 = vqrdmulhq_s32(vacc0x4567, vmultiplier);
+ vacc1x0123 = vqrdmulhq_s32(vacc1x0123, vmultiplier);
+ vacc1x4567 = vqrdmulhq_s32(vacc1x4567, vmultiplier);
+ vacc2x0123 = vqrdmulhq_s32(vacc2x0123, vmultiplier);
+ vacc2x4567 = vqrdmulhq_s32(vacc2x4567, vmultiplier);
+ vacc3x0123 = vqrdmulhq_s32(vacc3x0123, vmultiplier);
+ vacc3x4567 = vqrdmulhq_s32(vacc3x4567, vmultiplier);
+
+ const int32x4_t vright_shift = vld1q_dup_s32(¶ms->neon.right_shift);
+ const int32x4_t vzero_shift_mask = vreinterpretq_s32_u32(vceqq_s32(vright_shift, vmovq_n_s32(0)));
+ vacc0x0123 = vsraq_n_s32(vacc0x0123, vbicq_s32(vacc0x0123, vzero_shift_mask), 31);
+ vacc0x4567 = vsraq_n_s32(vacc0x4567, vbicq_s32(vacc0x4567, vzero_shift_mask), 31);
+ vacc1x0123 = vsraq_n_s32(vacc1x0123, vbicq_s32(vacc1x0123, vzero_shift_mask), 31);
+ vacc1x4567 = vsraq_n_s32(vacc1x4567, vbicq_s32(vacc1x4567, vzero_shift_mask), 31);
+ vacc2x0123 = vsraq_n_s32(vacc2x0123, vbicq_s32(vacc2x0123, vzero_shift_mask), 31);
+ vacc2x4567 = vsraq_n_s32(vacc2x4567, vbicq_s32(vacc2x4567, vzero_shift_mask), 31);
+ vacc3x0123 = vsraq_n_s32(vacc3x0123, vbicq_s32(vacc3x0123, vzero_shift_mask), 31);
+ vacc3x4567 = vsraq_n_s32(vacc3x4567, vbicq_s32(vacc3x4567, vzero_shift_mask), 31);
+
+ vacc0x0123 = vrshlq_s32(vacc0x0123, vright_shift);
+ vacc0x4567 = vrshlq_s32(vacc0x4567, vright_shift);
+ vacc1x0123 = vrshlq_s32(vacc1x0123, vright_shift);
+ vacc1x4567 = vrshlq_s32(vacc1x4567, vright_shift);
+ vacc2x0123 = vrshlq_s32(vacc2x0123, vright_shift);
+ vacc2x4567 = vrshlq_s32(vacc2x4567, vright_shift);
+ vacc3x0123 = vrshlq_s32(vacc3x0123, vright_shift);
+ vacc3x4567 = vrshlq_s32(vacc3x4567, vright_shift);
+
+ const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->neon.output_zero_point);
+ #if XNN_ARCH_ARM64
+ const int16x8_t vacc0x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567), voutput_zero_point);
+ const int16x8_t vacc1x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567), voutput_zero_point);
+ const int16x8_t vacc2x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567), voutput_zero_point);
+ const int16x8_t vacc3x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc3x0123), vacc3x4567), voutput_zero_point);
+
+ uint8x16_t vout0x01234567_1x01234567 = vqmovun_high_s16(vqmovun_s16(vacc0x01234567), vacc1x01234567);
+ uint8x16_t vout2x01234567_3x01234567 = vqmovun_high_s16(vqmovun_s16(vacc2x01234567), vacc3x01234567);
+ #else
+ const int16x8_t vacc0x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567)), voutput_zero_point);
+ const int16x8_t vacc1x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567)), voutput_zero_point);
+ const int16x8_t vacc2x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567)), voutput_zero_point);
+ const int16x8_t vacc3x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc3x0123), vqmovn_s32(vacc3x4567)), voutput_zero_point);
+
+ uint8x16_t vout0x01234567_1x01234567 = vcombine_u8(vqmovun_s16(vacc0x01234567), vqmovun_s16(vacc1x01234567));
+ uint8x16_t vout2x01234567_3x01234567 = vcombine_u8(vqmovun_s16(vacc2x01234567), vqmovun_s16(vacc3x01234567));
+ #endif
+ const uint8x16_t voutput_min = vld1q_dup_u8(¶ms->neon.output_min);
+ const uint8x16_t voutput_max = vld1q_dup_u8(¶ms->neon.output_max);
+
+ vout0x01234567_1x01234567 = vmaxq_u8(vout0x01234567_1x01234567, voutput_min);
+ vout2x01234567_3x01234567 = vmaxq_u8(vout2x01234567_3x01234567, voutput_min);
+ vout0x01234567_1x01234567 = vminq_u8(vout0x01234567_1x01234567, voutput_max);
+ vout2x01234567_3x01234567 = vminq_u8(vout2x01234567_3x01234567, voutput_max);
+
+ if XNN_LIKELY(nc >= 8) {
+ vst1_u8(c3, vget_high_u8(vout2x01234567_3x01234567)); c3 += cn_stride;
+ vst1_u8(c2, vget_low_u8(vout2x01234567_3x01234567)); c2 += cn_stride;
+ vst1_u8(c1, vget_high_u8(vout0x01234567_1x01234567)); c1 += cn_stride;
+ vst1_u8(c0, vget_low_u8(vout0x01234567_1x01234567)); c0 += cn_stride;
+
+ a = (const uint8_t**restrict) ((uintptr_t) a - ks);
+ nc -= 8;
+ } else {
+ if (nc & 4) {
+ vst1q_lane_u32(__builtin_assume_aligned(c3, 1), vreinterpretq_u32_u8(vout2x01234567_3x01234567), 2); c3 += 4;
+ vst1q_lane_u32(__builtin_assume_aligned(c2, 1), vreinterpretq_u32_u8(vout2x01234567_3x01234567), 0); c2 += 4;
+ vst1q_lane_u32(__builtin_assume_aligned(c1, 1), vreinterpretq_u32_u8(vout0x01234567_1x01234567), 2); c1 += 4;
+ vst1q_lane_u32(__builtin_assume_aligned(c0, 1), vreinterpretq_u32_u8(vout0x01234567_1x01234567), 0); c0 += 4;
+ vout0x01234567_1x01234567 = vextq_u8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
+ vout2x01234567_3x01234567 = vextq_u8(vout2x01234567_3x01234567, vout2x01234567_3x01234567, 4);
+ }
+ if (nc & 2) {
+ vst1q_lane_u16(__builtin_assume_aligned(c3, 1), vreinterpretq_u16_u8(vout2x01234567_3x01234567), 4); c3 += 2;
+ vst1q_lane_u16(__builtin_assume_aligned(c2, 1), vreinterpretq_u16_u8(vout2x01234567_3x01234567), 0); c2 += 2;
+ vst1q_lane_u16(__builtin_assume_aligned(c1, 1), vreinterpretq_u16_u8(vout0x01234567_1x01234567), 4); c1 += 2;
+ vst1q_lane_u16(__builtin_assume_aligned(c0, 1), vreinterpretq_u16_u8(vout0x01234567_1x01234567), 0); c0 += 2;
+ vout0x01234567_1x01234567 = vextq_u8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
+ vout2x01234567_3x01234567 = vextq_u8(vout2x01234567_3x01234567, vout2x01234567_3x01234567, 2);
+ }
+ if (nc & 1) {
+ vst1q_lane_u8(c3, vout2x01234567_3x01234567, 8);
+ vst1q_lane_u8(c2, vout2x01234567_3x01234567, 0);
+ vst1q_lane_u8(c1, vout0x01234567_1x01234567, 8);
+ vst1q_lane_u8(c0, vout0x01234567_1x01234567, 0);
+ }
+
+ nc = 0;
+ }
+ } while (nc != 0);
+}