QS8 Neon GEMM C16 microkernel with two 8 bit multiplies and vpadal to accumulate.
C16 partial sums kernel using mull on 8 bit to 16 bit, then mlal on 8 bit to 16 bit
Then padal to add pairs and lengthen to 32 bit, accumulating.
The 4 int accumulators will represent 1 byte in the final output, so there is
a vector for each element in the matrix.
The 4 ints are added together outside the loop.
PiperOrigin-RevId: 358428739
diff --git a/src/qs8-gemm/gen/3x8c16-minmax-neon-mlal-padal.c b/src/qs8-gemm/gen/3x8c16-minmax-neon-mlal-padal.c
new file mode 100644
index 0000000..158f244
--- /dev/null
+++ b/src/qs8-gemm/gen/3x8c16-minmax-neon-mlal-padal.c
@@ -0,0 +1,337 @@
+// Auto-generated file. Do not edit!
+// Template: src/qs8-gemm/c16-neon-mlal-padal.c.in
+// Generator: tools/xngen
+//
+// Copyright 2021 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/gemm.h>
+
+
+void xnn_qs8_gemm_minmax_ukernel_3x8c16__neon_mlal_padal(
+ size_t mr,
+ size_t nc,
+ size_t kc,
+ const int8_t* restrict a,
+ size_t a_stride,
+ const void* restrict w,
+ int8_t* restrict c,
+ size_t cm_stride,
+ size_t cn_stride,
+ const union xnn_qs8_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
+{
+ assert(mr != 0);
+ assert(mr <= 3);
+ assert(nc != 0);
+ assert(kc != 0);
+ assert(kc % sizeof(int8_t) == 0);
+ assert(a != NULL);
+ assert(w != NULL);
+ assert(c != NULL);
+
+ const int8_t* a0 = a;
+ int8_t* c0 = c;
+ const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
+ int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
+ if XNN_UNPREDICTABLE(mr < 2) {
+ a1 = a0;
+ c1 = c0;
+ }
+ const int8_t* a2 = (const int8_t*) ((uintptr_t) a1 + a_stride);
+ int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
+ if XNN_UNPREDICTABLE(mr <= 2) {
+ a2 = a1;
+ c2 = c1;
+ }
+
+ do {
+ int32x4_t vacc0x0 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc0x1 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc0x2 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc0x3 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc0x4 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc0x5 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc0x6 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc0x7 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
+ int32x4_t vacc1x0 = vacc0x0;
+ int32x4_t vacc1x1 = vacc0x1;
+ int32x4_t vacc1x2 = vacc0x2;
+ int32x4_t vacc1x3 = vacc0x3;
+ int32x4_t vacc1x4 = vacc0x4;
+ int32x4_t vacc1x5 = vacc0x5;
+ int32x4_t vacc1x6 = vacc0x6;
+ int32x4_t vacc1x7 = vacc0x7;
+ int32x4_t vacc2x0 = vacc0x0;
+ int32x4_t vacc2x1 = vacc0x1;
+ int32x4_t vacc2x2 = vacc0x2;
+ int32x4_t vacc2x3 = vacc0x3;
+ int32x4_t vacc2x4 = vacc0x4;
+ int32x4_t vacc2x5 = vacc0x5;
+ int32x4_t vacc2x6 = vacc0x6;
+ int32x4_t vacc2x7 = vacc0x7;
+
+ int k = (int) kc;
+ while (k > 0) {
+ const int8x8_t va0x0 = vld1_s8(a0); a0 += 8;
+ const int8x8_t va0x1 = vld1_s8(a0); a0 += 8;
+ const int8x8_t va1x0 = vld1_s8(a1); a1 += 8;
+ const int8x8_t va1x1 = vld1_s8(a1); a1 += 8;
+ const int8x8_t va2x0 = vld1_s8(a2); a2 += 8;
+ const int8x8_t va2x1 = vld1_s8(a2); a2 += 8;
+
+ const int8x8_t vb0x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb0x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb1x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb1x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb2x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb2x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb3x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb3x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb4x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb4x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb5x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb5x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb6x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb6x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb7x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+ const int8x8_t vb7x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
+
+ int16x8_t vprod0x0 = vmull_s8(vb0x0, va0x0);
+ vprod0x0 = vmlal_s8(vprod0x0, vb0x1, va0x1);
+ vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
+ int16x8_t vprod0x1 = vmull_s8(vb1x0, va0x0);
+ vprod0x1 = vmlal_s8(vprod0x1, vb1x1, va0x1);
+ vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
+ int16x8_t vprod0x2 = vmull_s8(vb2x0, va0x0);
+ vprod0x2 = vmlal_s8(vprod0x2, vb2x1, va0x1);
+ vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
+ int16x8_t vprod0x3 = vmull_s8(vb3x0, va0x0);
+ vprod0x3 = vmlal_s8(vprod0x3, vb3x1, va0x1);
+ vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
+ int16x8_t vprod0x4 = vmull_s8(vb4x0, va0x0);
+ vprod0x4 = vmlal_s8(vprod0x4, vb4x1, va0x1);
+ vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
+ int16x8_t vprod0x5 = vmull_s8(vb5x0, va0x0);
+ vprod0x5 = vmlal_s8(vprod0x5, vb5x1, va0x1);
+ vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
+ int16x8_t vprod0x6 = vmull_s8(vb6x0, va0x0);
+ vprod0x6 = vmlal_s8(vprod0x6, vb6x1, va0x1);
+ vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
+ int16x8_t vprod0x7 = vmull_s8(vb7x0, va0x0);
+ vprod0x7 = vmlal_s8(vprod0x7, vb7x1, va0x1);
+ vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
+ int16x8_t vprod1x0 = vmull_s8(vb0x0, va1x0);
+ vprod1x0 = vmlal_s8(vprod1x0, vb0x1, va1x1);
+ vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
+ int16x8_t vprod1x1 = vmull_s8(vb1x0, va1x0);
+ vprod1x1 = vmlal_s8(vprod1x1, vb1x1, va1x1);
+ vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
+ int16x8_t vprod1x2 = vmull_s8(vb2x0, va1x0);
+ vprod1x2 = vmlal_s8(vprod1x2, vb2x1, va1x1);
+ vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
+ int16x8_t vprod1x3 = vmull_s8(vb3x0, va1x0);
+ vprod1x3 = vmlal_s8(vprod1x3, vb3x1, va1x1);
+ vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
+ int16x8_t vprod1x4 = vmull_s8(vb4x0, va1x0);
+ vprod1x4 = vmlal_s8(vprod1x4, vb4x1, va1x1);
+ vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
+ int16x8_t vprod1x5 = vmull_s8(vb5x0, va1x0);
+ vprod1x5 = vmlal_s8(vprod1x5, vb5x1, va1x1);
+ vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
+ int16x8_t vprod1x6 = vmull_s8(vb6x0, va1x0);
+ vprod1x6 = vmlal_s8(vprod1x6, vb6x1, va1x1);
+ vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
+ int16x8_t vprod1x7 = vmull_s8(vb7x0, va1x0);
+ vprod1x7 = vmlal_s8(vprod1x7, vb7x1, va1x1);
+ vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
+ int16x8_t vprod2x0 = vmull_s8(vb0x0, va2x0);
+ vprod2x0 = vmlal_s8(vprod2x0, vb0x1, va2x1);
+ vacc2x0 = vpadalq_s16(vacc2x0, vprod2x0);
+ int16x8_t vprod2x1 = vmull_s8(vb1x0, va2x0);
+ vprod2x1 = vmlal_s8(vprod2x1, vb1x1, va2x1);
+ vacc2x1 = vpadalq_s16(vacc2x1, vprod2x1);
+ int16x8_t vprod2x2 = vmull_s8(vb2x0, va2x0);
+ vprod2x2 = vmlal_s8(vprod2x2, vb2x1, va2x1);
+ vacc2x2 = vpadalq_s16(vacc2x2, vprod2x2);
+ int16x8_t vprod2x3 = vmull_s8(vb3x0, va2x0);
+ vprod2x3 = vmlal_s8(vprod2x3, vb3x1, va2x1);
+ vacc2x3 = vpadalq_s16(vacc2x3, vprod2x3);
+ int16x8_t vprod2x4 = vmull_s8(vb4x0, va2x0);
+ vprod2x4 = vmlal_s8(vprod2x4, vb4x1, va2x1);
+ vacc2x4 = vpadalq_s16(vacc2x4, vprod2x4);
+ int16x8_t vprod2x5 = vmull_s8(vb5x0, va2x0);
+ vprod2x5 = vmlal_s8(vprod2x5, vb5x1, va2x1);
+ vacc2x5 = vpadalq_s16(vacc2x5, vprod2x5);
+ int16x8_t vprod2x6 = vmull_s8(vb6x0, va2x0);
+ vprod2x6 = vmlal_s8(vprod2x6, vb6x1, va2x1);
+ vacc2x6 = vpadalq_s16(vacc2x6, vprod2x6);
+ int16x8_t vprod2x7 = vmull_s8(vb7x0, va2x0);
+ vprod2x7 = vmlal_s8(vprod2x7, vb7x1, va2x1);
+ vacc2x7 = vpadalq_s16(vacc2x7, vprod2x7);
+
+ k -= 16 * sizeof(int8_t);
+ }
+ // End of accumulation loop. The variable `k` contains the amount by which
+ // we advanced the `va` pointers, so we rewind by this amount now.
+ a0 = (const int8_t*)((uintptr_t)a0 + k);
+ a1 = (const int8_t*)((uintptr_t)a1 + k);
+ a2 = (const int8_t*)((uintptr_t)a2 + k);
+
+#if XNN_ARCH_ARM64
+ const int32x4_t vsum0x01 = vpaddq_s32(vacc0x0, vacc0x1);
+ const int32x4_t vsum0x23 = vpaddq_s32(vacc0x2, vacc0x3);
+ const int32x4_t vsum0x45 = vpaddq_s32(vacc0x4, vacc0x5);
+ const int32x4_t vsum0x67 = vpaddq_s32(vacc0x6, vacc0x7);
+ const int32x4_t vsum1x01 = vpaddq_s32(vacc1x0, vacc1x1);
+ const int32x4_t vsum1x23 = vpaddq_s32(vacc1x2, vacc1x3);
+ const int32x4_t vsum1x45 = vpaddq_s32(vacc1x4, vacc1x5);
+ const int32x4_t vsum1x67 = vpaddq_s32(vacc1x6, vacc1x7);
+ const int32x4_t vsum2x01 = vpaddq_s32(vacc2x0, vacc2x1);
+ const int32x4_t vsum2x23 = vpaddq_s32(vacc2x2, vacc2x3);
+ const int32x4_t vsum2x45 = vpaddq_s32(vacc2x4, vacc2x5);
+ const int32x4_t vsum2x67 = vpaddq_s32(vacc2x6, vacc2x7);
+ int32x4_t vacc0x0123 = vpaddq_s32(vsum0x01, vsum0x23);
+ int32x4_t vacc0x4567 = vpaddq_s32(vsum0x45, vsum0x67);
+ int32x4_t vacc1x0123 = vpaddq_s32(vsum1x01, vsum1x23);
+ int32x4_t vacc1x4567 = vpaddq_s32(vsum1x45, vsum1x67);
+ int32x4_t vacc2x0123 = vpaddq_s32(vsum2x01, vsum2x23);
+ int32x4_t vacc2x4567 = vpaddq_s32(vsum2x45, vsum2x67);
+#else
+ const int32x2_t vpsum0x0 = vadd_s32(vget_low_s32(vacc0x0), vget_high_s32(vacc0x0));
+ const int32x2_t vpsum0x1 = vadd_s32(vget_low_s32(vacc0x1), vget_high_s32(vacc0x1));
+ const int32x2_t vpsum0x2 = vadd_s32(vget_low_s32(vacc0x2), vget_high_s32(vacc0x2));
+ const int32x2_t vpsum0x3 = vadd_s32(vget_low_s32(vacc0x3), vget_high_s32(vacc0x3));
+ const int32x2_t vsum0x01 = vpadd_s32(vpsum0x0, vpsum0x1);
+ const int32x2_t vsum0x23 = vpadd_s32(vpsum0x2, vpsum0x3);
+ int32x4_t vacc0x0123 = vcombine_s32(vsum0x01, vsum0x23 );
+ const int32x2_t vpsum0x4 = vadd_s32(vget_low_s32(vacc0x4), vget_high_s32(vacc0x4));
+ const int32x2_t vpsum0x5 = vadd_s32(vget_low_s32(vacc0x5), vget_high_s32(vacc0x5));
+ const int32x2_t vpsum0x6 = vadd_s32(vget_low_s32(vacc0x6), vget_high_s32(vacc0x6));
+ const int32x2_t vpsum0x7 = vadd_s32(vget_low_s32(vacc0x7), vget_high_s32(vacc0x7));
+ const int32x2_t vsum0x45 = vpadd_s32(vpsum0x4, vpsum0x5);
+ const int32x2_t vsum0x67 = vpadd_s32(vpsum0x6, vpsum0x7);
+ int32x4_t vacc0x4567 = vcombine_s32(vsum0x45, vsum0x67 );
+ const int32x2_t vpsum1x0 = vadd_s32(vget_low_s32(vacc1x0), vget_high_s32(vacc1x0));
+ const int32x2_t vpsum1x1 = vadd_s32(vget_low_s32(vacc1x1), vget_high_s32(vacc1x1));
+ const int32x2_t vpsum1x2 = vadd_s32(vget_low_s32(vacc1x2), vget_high_s32(vacc1x2));
+ const int32x2_t vpsum1x3 = vadd_s32(vget_low_s32(vacc1x3), vget_high_s32(vacc1x3));
+ const int32x2_t vsum1x01 = vpadd_s32(vpsum1x0, vpsum1x1);
+ const int32x2_t vsum1x23 = vpadd_s32(vpsum1x2, vpsum1x3);
+ int32x4_t vacc1x0123 = vcombine_s32(vsum1x01, vsum1x23 );
+ const int32x2_t vpsum1x4 = vadd_s32(vget_low_s32(vacc1x4), vget_high_s32(vacc1x4));
+ const int32x2_t vpsum1x5 = vadd_s32(vget_low_s32(vacc1x5), vget_high_s32(vacc1x5));
+ const int32x2_t vpsum1x6 = vadd_s32(vget_low_s32(vacc1x6), vget_high_s32(vacc1x6));
+ const int32x2_t vpsum1x7 = vadd_s32(vget_low_s32(vacc1x7), vget_high_s32(vacc1x7));
+ const int32x2_t vsum1x45 = vpadd_s32(vpsum1x4, vpsum1x5);
+ const int32x2_t vsum1x67 = vpadd_s32(vpsum1x6, vpsum1x7);
+ int32x4_t vacc1x4567 = vcombine_s32(vsum1x45, vsum1x67 );
+ const int32x2_t vpsum2x0 = vadd_s32(vget_low_s32(vacc2x0), vget_high_s32(vacc2x0));
+ const int32x2_t vpsum2x1 = vadd_s32(vget_low_s32(vacc2x1), vget_high_s32(vacc2x1));
+ const int32x2_t vpsum2x2 = vadd_s32(vget_low_s32(vacc2x2), vget_high_s32(vacc2x2));
+ const int32x2_t vpsum2x3 = vadd_s32(vget_low_s32(vacc2x3), vget_high_s32(vacc2x3));
+ const int32x2_t vsum2x01 = vpadd_s32(vpsum2x0, vpsum2x1);
+ const int32x2_t vsum2x23 = vpadd_s32(vpsum2x2, vpsum2x3);
+ int32x4_t vacc2x0123 = vcombine_s32(vsum2x01, vsum2x23 );
+ const int32x2_t vpsum2x4 = vadd_s32(vget_low_s32(vacc2x4), vget_high_s32(vacc2x4));
+ const int32x2_t vpsum2x5 = vadd_s32(vget_low_s32(vacc2x5), vget_high_s32(vacc2x5));
+ const int32x2_t vpsum2x6 = vadd_s32(vget_low_s32(vacc2x6), vget_high_s32(vacc2x6));
+ const int32x2_t vpsum2x7 = vadd_s32(vget_low_s32(vacc2x7), vget_high_s32(vacc2x7));
+ const int32x2_t vsum2x45 = vpadd_s32(vpsum2x4, vpsum2x5);
+ const int32x2_t vsum2x67 = vpadd_s32(vpsum2x6, vpsum2x7);
+ int32x4_t vacc2x4567 = vcombine_s32(vsum2x45, vsum2x67 );
+#endif
+
+ 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);
+
+ 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);
+
+ 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);
+
+ 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);
+ int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
+ int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
+#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);
+
+ int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc1x01234567));
+ int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
+#endif
+ const int8x16_t voutput_min = vld1q_dup_s8(¶ms->neon.output_min);
+ const int8x16_t voutput_max = vld1q_dup_s8(¶ms->neon.output_max);
+
+ vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
+ vout2x01234567 = vmax_s8(vout2x01234567, vget_low_s8(voutput_min));
+
+ vout0x01234567_1x01234567 = vminq_s8(vout0x01234567_1x01234567, voutput_max);
+ vout2x01234567 = vmin_s8(vout2x01234567, vget_low_s8(voutput_max));
+
+ if (nc >= 8) {
+ vst1_s8(c0 + 0, vget_low_s8(vout0x01234567_1x01234567));
+ vst1_s8(c1 + 0, vget_high_s8(vout0x01234567_1x01234567));
+ vst1_s8(c2 + 0, vout2x01234567);
+
+ c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
+ c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
+ c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
+
+ a0 = (const int8_t*) ((uintptr_t) a0 - kc);
+ a1 = (const int8_t*) ((uintptr_t) a1 - kc);
+ a2 = (const int8_t*) ((uintptr_t) a2 - kc);
+
+ nc -= 8;
+ } else {
+ if (nc & 4) {
+ vst1q_lane_u32(__builtin_assume_aligned(c0, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
+ vst1q_lane_u32(__builtin_assume_aligned(c1, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
+ vst1_lane_u32(__builtin_assume_aligned(c2, 1), vreinterpret_u32_s8(vout2x01234567), 0); c2 += 4;
+ vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
+ vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 4);
+ }
+ if (nc & 2) {
+ vst1q_lane_u16(__builtin_assume_aligned(c0, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
+ vst1q_lane_u16(__builtin_assume_aligned(c1, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
+ vst1_lane_u16(__builtin_assume_aligned(c2, 1), vreinterpret_u16_s8(vout2x01234567), 0); c2 += 2;
+ vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
+ vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 2);
+ }
+ if (nc & 1) {
+ vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
+ vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
+ vst1_lane_s8(c2, vout2x01234567, 0);
+ }
+
+ nc = 0;
+ }
+ } while (nc != 0);
+}