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// Auto-generated file. Do not edit!
// Template: src/bf16-gemm/c8-neonbf16.c.in
// Generator: tools/xngen
//
// Copyright 2022 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/gemm.h>
void xnn_bf16_gemm_minmax_ukernel_2x4c8__neonbf16_bfdot(
size_t mr,
size_t nc,
size_t kc,
const void* restrict a,
size_t a_stride,
const void* restrict w_ptr,
void* restrict c,
size_t cm_stride,
size_t cn_stride,
const union xnn_bf16_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
{
assert(mr != 0);
assert(mr <= 2);
assert(nc != 0);
assert(kc != 0);
assert(kc % sizeof(bfloat16_t) == 0);
assert(a != NULL);
assert(w_ptr != NULL);
assert(c != NULL);
const bfloat16_t* a0 = (const bfloat16_t*) a;
bfloat16_t* c0 = (bfloat16_t*) c;
const bfloat16_t* a1 = (const bfloat16_t*) ((uintptr_t) a0 + a_stride);
bfloat16_t* c1 = (bfloat16_t*) ((uintptr_t) c0 + cm_stride);
if XNN_UNPREDICTABLE(mr != 2) {
a1 = a0;
c1 = c0;
}
const bfloat16_t* w = (const bfloat16_t*) w_ptr;
do {
float32x4_t vacc0x0 = vcvt_f32_bf16(vld1_lane_bf16(w, vreinterpret_bf16_u16(vdup_n_u16(0)), 0)); w += 1;
float32x4_t vacc0x1 = vcvt_f32_bf16(vld1_lane_bf16(w, vreinterpret_bf16_u16(vdup_n_u16(0)), 0)); w += 1;
float32x4_t vacc0x2 = vcvt_f32_bf16(vld1_lane_bf16(w, vreinterpret_bf16_u16(vdup_n_u16(0)), 0)); w += 1;
float32x4_t vacc0x3 = vcvt_f32_bf16(vld1_lane_bf16(w, vreinterpret_bf16_u16(vdup_n_u16(0)), 0)); w += 1;
float32x4_t vacc1x0 = vacc0x0;
float32x4_t vacc1x1 = vacc0x1;
float32x4_t vacc1x2 = vacc0x2;
float32x4_t vacc1x3 = vacc0x3;
size_t k = kc;
for (; k >= 8 * sizeof(bfloat16_t); k -= 8 * sizeof(bfloat16_t)) {
const bfloat16x8_t va0 = vld1q_bf16(a0); a0 += 8;
const bfloat16x8_t va1 = vld1q_bf16(a1); a1 += 8;
const bfloat16x8_t vb0 = vld1q_bf16(w); w += 8;
const bfloat16x8_t vb1 = vld1q_bf16(w); w += 8;
const bfloat16x8_t vb2 = vld1q_bf16(w); w += 8;
const bfloat16x8_t vb3 = vld1q_bf16(w); w += 8;
vacc0x0 = vbfdotq_f32(vacc0x0, va0, vb0);
vacc1x0 = vbfdotq_f32(vacc1x0, va1, vb0);
vacc0x1 = vbfdotq_f32(vacc0x1, va0, vb1);
vacc1x1 = vbfdotq_f32(vacc1x1, va1, vb1);
vacc0x2 = vbfdotq_f32(vacc0x2, va0, vb2);
vacc1x2 = vbfdotq_f32(vacc1x2, va1, vb2);
vacc0x3 = vbfdotq_f32(vacc0x3, va0, vb3);
vacc1x3 = vbfdotq_f32(vacc1x3, va1, vb3);
}
if XNN_UNLIKELY(k != 0) {
const bfloat16x8_t va0 = vld1q_bf16(a0); a0 = (const bfloat16_t*) ((uintptr_t) a0 + k);
const bfloat16x8_t va1 = vld1q_bf16(a1); a1 = (const bfloat16_t*) ((uintptr_t) a1 + k);
const bfloat16x8_t vb0 = vld1q_bf16(w); w += 8;
const bfloat16x8_t vb1 = vld1q_bf16(w); w += 8;
const bfloat16x8_t vb2 = vld1q_bf16(w); w += 8;
const bfloat16x8_t vb3 = vld1q_bf16(w); w += 8;
const uint16x8_t vm0 = vceqq_u16(vreinterpretq_u16_bf16(vb0), vmovq_n_u16(0));
const uint16x8_t vm1 = vceqq_u16(vreinterpretq_u16_bf16(vb1), vmovq_n_u16(0));
const uint16x8_t vm2 = vceqq_u16(vreinterpretq_u16_bf16(vb2), vmovq_n_u16(0));
const uint16x8_t vm3 = vceqq_u16(vreinterpretq_u16_bf16(vb3), vmovq_n_u16(0));
const bfloat16x8_t va0x0 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va0), vm0));
vacc0x0 = vbfdotq_f32(vacc0x0, va0x0, vb0);
const bfloat16x8_t va1x0 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va1), vm0));
vacc1x0 = vbfdotq_f32(vacc1x0, va1x0, vb0);
const bfloat16x8_t va0x1 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va0), vm1));
vacc0x1 = vbfdotq_f32(vacc0x1, va0x1, vb1);
const bfloat16x8_t va1x1 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va1), vm1));
vacc1x1 = vbfdotq_f32(vacc1x1, va1x1, vb1);
const bfloat16x8_t va0x2 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va0), vm2));
vacc0x2 = vbfdotq_f32(vacc0x2, va0x2, vb2);
const bfloat16x8_t va1x2 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va1), vm2));
vacc1x2 = vbfdotq_f32(vacc1x2, va1x2, vb2);
const bfloat16x8_t va0x3 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va0), vm3));
vacc0x3 = vbfdotq_f32(vacc0x3, va0x3, vb3);
const bfloat16x8_t va1x3 = vreinterpretq_bf16_u16(vbicq_u16(vreinterpretq_u16_bf16(va1), vm3));
vacc1x3 = vbfdotq_f32(vacc1x3, va1x3, vb3);
}
#if XNN_ARCH_ARM64
const float32x4_t vacc0x01 = vpaddq_f32(vacc0x0, vacc0x1);
const float32x4_t vacc1x01 = vpaddq_f32(vacc1x0, vacc1x1);
const float32x4_t vacc0x23 = vpaddq_f32(vacc0x2, vacc0x3);
const float32x4_t vacc1x23 = vpaddq_f32(vacc1x2, vacc1x3);
float32x4_t vacc0x0123 = vpaddq_f32(vacc0x01, vacc0x23);
float32x4_t vacc1x0123 = vpaddq_f32(vacc1x01, vacc1x23);
#else
const float32x2_t vsum0x0 = vadd_f32(vget_low_f32(vacc0x0), vget_high_f32(vacc0x0));
const float32x2_t vsum1x0 = vadd_f32(vget_low_f32(vacc1x0), vget_high_f32(vacc1x0));
const float32x2_t vsum0x1 = vadd_f32(vget_low_f32(vacc0x1), vget_high_f32(vacc0x1));
const float32x2_t vsum1x1 = vadd_f32(vget_low_f32(vacc1x1), vget_high_f32(vacc1x1));
const float32x2_t vsum0x2 = vadd_f32(vget_low_f32(vacc0x2), vget_high_f32(vacc0x2));
const float32x2_t vsum1x2 = vadd_f32(vget_low_f32(vacc1x2), vget_high_f32(vacc1x2));
const float32x2_t vsum0x3 = vadd_f32(vget_low_f32(vacc0x3), vget_high_f32(vacc0x3));
const float32x2_t vsum1x3 = vadd_f32(vget_low_f32(vacc1x3), vget_high_f32(vacc1x3));
float32x4_t vacc0x0123 = vcombine_f32(vpadd_f32(vsum0x0, vsum0x1), vpadd_f32(vsum0x2, vsum0x3));
float32x4_t vacc1x0123 = vcombine_f32(vpadd_f32(vsum1x0, vsum1x1), vpadd_f32(vsum1x2, vsum1x3));
#endif
const float32x4_t vmax = vld1q_dup_f32(¶ms->scalar.max);
vacc0x0123 = vminq_f32(vacc0x0123, vmax);
vacc1x0123 = vminq_f32(vacc1x0123, vmax);
const float32x4_t vmin = vld1q_dup_f32(¶ms->scalar.min);
vacc0x0123 = vmaxq_f32(vacc0x0123, vmin);
vacc1x0123 = vmaxq_f32(vacc1x0123, vmin);
bfloat16x4_t vout0x0123 = vcvt_bf16_f32(vacc0x0123);
bfloat16x4_t vout1x0123 = vcvt_bf16_f32(vacc1x0123);
if XNN_LIKELY(nc >= 4) {
vst1_bf16(c0, vout0x0123);
c0 = (bfloat16_t*) ((uintptr_t) c0 + cn_stride);
vst1_bf16(c1, vout1x0123);
c1 = (bfloat16_t*) ((uintptr_t) c1 + cn_stride);
a0 = (const bfloat16_t*) ((uintptr_t) a0 - kc);
a1 = (const bfloat16_t*) ((uintptr_t) a1 - kc);
nc -= 4;
} else {
if (nc & 2) {
vst1_lane_u32((void*) c0, vreinterpret_u32_bf16(vout0x0123), 0); c0 += 2;
vst1_lane_u32((void*) c1, vreinterpret_u32_bf16(vout1x0123), 0); c1 += 2;
vout0x0123 = vreinterpret_bf16_u16(vext_u16(vreinterpret_u16_bf16(vout0x0123), vreinterpret_u16_bf16(vout0x0123), 2));
vout1x0123 = vreinterpret_bf16_u16(vext_u16(vreinterpret_u16_bf16(vout1x0123), vreinterpret_u16_bf16(vout1x0123), 2));
}
if (nc & 1) {
vst1_lane_bf16(c0, vout0x0123, 0);
vst1_lane_bf16(c1, vout1x0123, 0);
}
nc = 0;
}
} while (nc != 0);
}
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