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// Auto-generated file. Do not edit!
// Template: src/f16-f32-vcvt/scalar.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 <xnnpack/common.h>
#include <xnnpack/math.h>
#include <xnnpack/vcvt.h>
void xnn_f16_f32_vcvt_ukernel__scalar_x3(
size_t batch,
const void* input,
float* output,
const union xnn_f16_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)])
{
assert(batch != 0);
assert(batch % sizeof(uint16_t) == 0);
assert(input != NULL);
assert(output != NULL);
const uint32_t vsign_mask = params->scalar.sign_mask;
const uint32_t vexp_offset = params->scalar.exp_offset;
const float vexp_scale = params->scalar.exp_scale;
const uint32_t vmagic_mask = params->scalar.magic_mask;
const float vmagic_bias = params->scalar.magic_bias;
const uint32_t vdenorm_cutoff = params->scalar.denorm_cutoff;
const uint16_t* i = (const uint16_t*) input;
uint32_t* o = (uint32_t*) output;
for (; batch >= 3 * sizeof(uint16_t); batch -= 3 * sizeof(uint16_t)) {
const uint16_t vh0 = i[0];
const uint16_t vh1 = i[1];
const uint16_t vh2 = i[2];
i += 3;
const uint32_t vw0 = (uint32_t) vh0 << 16;
const uint32_t vw1 = (uint32_t) vh1 << 16;
const uint32_t vw2 = (uint32_t) vh2 << 16;
const uint32_t vsign0 = vw0 & vsign_mask;
const uint32_t vsign1 = vw1 & vsign_mask;
const uint32_t vsign2 = vw2 & vsign_mask;
const uint32_t v2w0 = vw0 + vw0;
const uint32_t v2w1 = vw1 + vw1;
const uint32_t v2w2 = vw2 + vw2;
const uint32_t vnorm0 = float_as_uint32(uint32_as_float((v2w0 >> 4) + vexp_offset) * vexp_scale);
const uint32_t vnorm1 = float_as_uint32(uint32_as_float((v2w1 >> 4) + vexp_offset) * vexp_scale);
const uint32_t vnorm2 = float_as_uint32(uint32_as_float((v2w2 >> 4) + vexp_offset) * vexp_scale);
const uint32_t vdenorm0 = float_as_uint32(uint32_as_float((v2w0 >> 17) | vmagic_mask) - vmagic_bias);
const uint32_t vdenorm1 = float_as_uint32(uint32_as_float((v2w1 >> 17) | vmagic_mask) - vmagic_bias);
const uint32_t vdenorm2 = float_as_uint32(uint32_as_float((v2w2 >> 17) | vmagic_mask) - vmagic_bias);
const uint32_t vf0 = vsign0 | (XNN_UNPREDICTABLE(v2w0 < vdenorm_cutoff) ? vdenorm0 : vnorm0);
const uint32_t vf1 = vsign1 | (XNN_UNPREDICTABLE(v2w1 < vdenorm_cutoff) ? vdenorm1 : vnorm1);
const uint32_t vf2 = vsign2 | (XNN_UNPREDICTABLE(v2w2 < vdenorm_cutoff) ? vdenorm2 : vnorm2);
o[0] = vf0;
o[1] = vf1;
o[2] = vf2;
o += 3;
}
if XNN_UNLIKELY(batch != 0) {
do {
const uint16_t vh = *i++;
const uint32_t vw = (uint32_t) vh << 16;
const uint32_t vsign = vw & vsign_mask;
const uint32_t v2w = vw + vw;
const uint32_t vnorm = float_as_uint32(uint32_as_float((v2w >> 4) + vexp_offset) * vexp_scale);
const uint32_t vdenorm = float_as_uint32(uint32_as_float((v2w >> 17) | vmagic_mask) - vmagic_bias);
const uint32_t vf = vsign | (XNN_UNPREDICTABLE(v2w < vdenorm_cutoff) ? vdenorm : vnorm);
*o++ = vf;
batch -= sizeof(uint16_t);
} while (batch != 0);
}
}
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