| // Auto-generated file. Do not edit! |
| // Template: src/qs8-f32-vcvt/sse4.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 <immintrin.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/intrinsics-polyfill.h> |
| #include <xnnpack/vcvt.h> |
| |
| |
| void xnn_qs8_f32_vcvt_ukernel__sse41_x16( |
| size_t n, |
| const int8_t* x, |
| float* y, |
| const union xnn_qs8_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN XNN_DISABLE_MSAN |
| { |
| assert(n != 0); |
| assert(n % sizeof(int8_t) == 0); |
| assert(x != NULL); |
| assert(y != NULL); |
| |
| const __m128i vminus_zero_point = _mm_load_si128((const __m128i*) params->sse4.minus_zero_point); |
| const __m128 vscale = _mm_load_ps(params->sse4.scale); |
| for (; n >= 16 * sizeof(int8_t); n -= 16 * sizeof(int8_t)) { |
| __m128i vx0123 = _mm_cvtepi8_epi32(_mm_loadu_si32(x)); |
| __m128i vx4567 = _mm_cvtepi8_epi32(_mm_loadu_si32(x + 4)); |
| __m128i vx89AB = _mm_cvtepi8_epi32(_mm_loadu_si32(x + 8)); |
| __m128i vxCDEF = _mm_cvtepi8_epi32(_mm_loadu_si32(x + 12)); |
| x += 16; |
| |
| vx0123 = _mm_add_epi32(vx0123, vminus_zero_point); |
| vx4567 = _mm_add_epi32(vx4567, vminus_zero_point); |
| vx89AB = _mm_add_epi32(vx89AB, vminus_zero_point); |
| vxCDEF = _mm_add_epi32(vxCDEF, vminus_zero_point); |
| |
| __m128 vy0123 = _mm_cvtepi32_ps(vx0123); |
| __m128 vy4567 = _mm_cvtepi32_ps(vx4567); |
| __m128 vy89AB = _mm_cvtepi32_ps(vx89AB); |
| __m128 vyCDEF = _mm_cvtepi32_ps(vxCDEF); |
| |
| vy0123 = _mm_mul_ps(vy0123, vscale); |
| vy4567 = _mm_mul_ps(vy4567, vscale); |
| vy89AB = _mm_mul_ps(vy89AB, vscale); |
| vyCDEF = _mm_mul_ps(vyCDEF, vscale); |
| |
| _mm_storeu_ps(y, vy0123); |
| _mm_storeu_ps(y + 4, vy4567); |
| _mm_storeu_ps(y + 8, vy89AB); |
| _mm_storeu_ps(y + 12, vyCDEF); |
| y += 16; |
| } |
| for (; n >= 4 * sizeof(int8_t); n -= 4 * sizeof(int8_t)) { |
| __m128i vx = _mm_cvtepi8_epi32(_mm_loadu_si32(x)); |
| vx = _mm_add_epi32(vx, vminus_zero_point); |
| x += 4; |
| |
| __m128 vy = _mm_cvtepi32_ps(vx); |
| vy = _mm_mul_ps(vy, vscale); |
| |
| _mm_storeu_ps(y, vy); |
| y += 4; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| assert(n >= 1 * sizeof(int8_t)); |
| assert(n <= 3 * sizeof(int8_t)); |
| |
| __m128i vx = _mm_cvtepi8_epi32(_mm_loadu_si32(x)); |
| vx = _mm_add_epi32(vx, vminus_zero_point); |
| |
| __m128 vy = _mm_cvtepi32_ps(vx); |
| vy = _mm_mul_ps(vy, vscale); |
| |
| if (n & (2 * sizeof(int8_t))) { |
| _mm_storel_pi((__m64*) y, vy); |
| vy = _mm_movehl_ps(vy, vy); |
| y += 2; |
| } |
| if (n & (1 * sizeof(int8_t))) { |
| _mm_store_ss(y, vy); |
| } |
| } |
| } |