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// 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.
$assert BATCH_TILE % 8 == 0
$assert BATCH_TILE >= 8
$SIMD_TILE = BATCH_TILE // 8
$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
$assert OP in ["ABS", "NEG"]
#include <assert.h>
#include <emmintrin.h>
#include <xnnpack/common.h>
#include <xnnpack/math.h>
#include <xnnpack/unaligned.h>
#include <xnnpack/vunary.h>
$_MM_OP_SI128 = {
$ "ABS": lambda x: "_mm_and_si128(%s, vnonsign_mask)" % x,
$ "NEG": lambda x: "_mm_xor_si128(%s, vsign_mask)" % x,
$}[OP]
$PARAMS = {
$ "ABS": "xnn_f16_abs_params",
$ "NEG": "xnn_f16_neg_params",
$}[OP]
void xnn_f16_v${OP.lower()}_ukernel__sse2_x${BATCH_TILE}(
size_t batch,
const void* input,
void* output,
const union ${PARAMS} params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
{
assert(batch != 0);
assert(batch % sizeof(uint16_t) == 0);
assert(input != NULL);
assert(output != NULL);
const uint16_t* i = (const uint16_t*) input;
uint16_t* o = (uint16_t*) output;
$if OP == "ABS":
const __m128i vnonsign_mask = _mm_load_si128((const __m128i*) params->sse.nonsign_mask);
$elif OP == "NEG":
const __m128i vsign_mask = _mm_load_si128((const __m128i*) params->sse.sign_mask);
$if BATCH_TILE > 8:
for (; batch >= ${BATCH_TILE} * sizeof(uint16_t); batch -= ${BATCH_TILE} * sizeof(uint16_t)) {
__m128i vacc${ABC[0]} = _mm_loadu_si128((const __m128i*) i);
$for N in range(1, SIMD_TILE):
__m128i vacc${ABC[N]} = _mm_loadu_si128((const __m128i*) (i + ${N*8}));
i += ${BATCH_TILE};
$for N in range(SIMD_TILE):
vacc${ABC[N]} = ${_MM_OP_SI128("vacc" + ABC[N])};
_mm_storeu_si128((__m128i*) o, vacc${ABC[0]});
$for N in range(1, SIMD_TILE):
_mm_storeu_si128((__m128i*) (o + ${N*8}), vacc${ABC[N]});
o += ${BATCH_TILE};
}
for (; batch >= 8 * sizeof(uint16_t); batch -= 8 * sizeof(uint16_t)) {
__m128i vacc = _mm_loadu_si128((const __m128i*) i);
i += 8;
vacc = ${_MM_OP_SI128("vacc")};
_mm_storeu_si128((__m128i*) o, vacc);
o += 8;
}
if XNN_UNLIKELY(batch != 0) {
__m128i vacc = _mm_loadu_si128((const __m128i*) i);
vacc = ${_MM_OP_SI128("vacc")};
if (batch & (4 * sizeof(uint16_t))) {
_mm_storel_epi64((__m128i*) o, vacc);
o += 4;
vacc = _mm_unpackhi_epi64(vacc, vacc);
}
if (batch & (2 * sizeof(uint16_t))) {
unaligned_store_u32(o, (uint32_t) _mm_cvtsi128_si32(vacc));
o += 2;
vacc = _mm_srli_epi64(vacc, 32);
}
if (batch & (1 * sizeof(uint16_t))) {
*o = (uint16_t) _mm_extract_epi16(vacc, 0);
}
}
}
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