| /* |
| * SSE Convolution |
| * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <malloc.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include "convolve_sse_3.h" |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #ifdef HAVE_SSE3 |
| #include <xmmintrin.h> |
| #include <pmmintrin.h> |
| |
| /* 4-tap SSE complex-real convolution */ |
| void sse_conv_real4(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* NOTE: The parameter list of this function has to match the parameter |
| * list of _base_convolve_real() in convolve_base.c. This specific |
| * implementation, ignores some of the parameters of |
| * _base_convolve_complex(), which are: x_len, y_len, offset, step */ |
| |
| __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[0]); |
| m1 = _mm_load_ps(&h[4]); |
| m7 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| |
| for (int i = 0; i < len; i++) { |
| /* Load (unaligned) input data */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| m2 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m3 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Quad multiply */ |
| m4 = _mm_mul_ps(m2, m7); |
| m5 = _mm_mul_ps(m3, m7); |
| |
| /* Sum and store */ |
| m6 = _mm_hadd_ps(m4, m5); |
| m0 = _mm_hadd_ps(m6, m6); |
| |
| _mm_store_ss(&y[2 * i + 0], m0); |
| m0 = _mm_shuffle_ps(m0, m0, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m0); |
| } |
| } |
| |
| /* 8-tap SSE complex-real convolution */ |
| void sse_conv_real8(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* See NOTE in sse_conv_real4() */ |
| |
| __m128 m0, m1, m2, m3, m4, m5, m6, m7, m8, m9; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[0]); |
| m1 = _mm_load_ps(&h[4]); |
| m2 = _mm_load_ps(&h[8]); |
| m3 = _mm_load_ps(&h[12]); |
| |
| m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m5 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| |
| for (int i = 0; i < len; i++) { |
| /* Load (unaligned) input data */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| |
| m6 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m7 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m8 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m9 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Quad multiply */ |
| m6 = _mm_mul_ps(m6, m4); |
| m7 = _mm_mul_ps(m7, m4); |
| m8 = _mm_mul_ps(m8, m5); |
| m9 = _mm_mul_ps(m9, m5); |
| |
| /* Sum and store */ |
| m6 = _mm_add_ps(m6, m8); |
| m7 = _mm_add_ps(m7, m9); |
| m6 = _mm_hadd_ps(m6, m7); |
| m6 = _mm_hadd_ps(m6, m6); |
| |
| _mm_store_ss(&y[2 * i + 0], m6); |
| m6 = _mm_shuffle_ps(m6, m6, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m6); |
| } |
| } |
| |
| /* 12-tap SSE complex-real convolution */ |
| void sse_conv_real12(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* See NOTE in sse_conv_real4() */ |
| |
| __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| __m128 m8, m9, m10, m11, m12, m13, m14; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[0]); |
| m1 = _mm_load_ps(&h[4]); |
| m2 = _mm_load_ps(&h[8]); |
| m3 = _mm_load_ps(&h[12]); |
| m4 = _mm_load_ps(&h[16]); |
| m5 = _mm_load_ps(&h[20]); |
| |
| m12 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m13 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m14 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| |
| for (int i = 0; i < len; i++) { |
| /* Load (unaligned) input data */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| |
| m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| m0 = _mm_loadu_ps(&_x[2 * i + 16]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 20]); |
| |
| m8 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m9 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Quad multiply */ |
| m0 = _mm_mul_ps(m4, m12); |
| m1 = _mm_mul_ps(m5, m12); |
| m2 = _mm_mul_ps(m6, m13); |
| m3 = _mm_mul_ps(m7, m13); |
| m4 = _mm_mul_ps(m8, m14); |
| m5 = _mm_mul_ps(m9, m14); |
| |
| /* Sum and store */ |
| m8 = _mm_add_ps(m0, m2); |
| m9 = _mm_add_ps(m1, m3); |
| m10 = _mm_add_ps(m8, m4); |
| m11 = _mm_add_ps(m9, m5); |
| |
| m2 = _mm_hadd_ps(m10, m11); |
| m3 = _mm_hadd_ps(m2, m2); |
| |
| _mm_store_ss(&y[2 * i + 0], m3); |
| m3 = _mm_shuffle_ps(m3, m3, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m3); |
| } |
| } |
| |
| /* 16-tap SSE complex-real convolution */ |
| void sse_conv_real16(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* See NOTE in sse_conv_real4() */ |
| |
| __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| __m128 m8, m9, m10, m11, m12, m13, m14, m15; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[0]); |
| m1 = _mm_load_ps(&h[4]); |
| m2 = _mm_load_ps(&h[8]); |
| m3 = _mm_load_ps(&h[12]); |
| |
| m4 = _mm_load_ps(&h[16]); |
| m5 = _mm_load_ps(&h[20]); |
| m6 = _mm_load_ps(&h[24]); |
| m7 = _mm_load_ps(&h[28]); |
| |
| m12 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m13 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m14 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| m15 = _mm_shuffle_ps(m6, m7, _MM_SHUFFLE(0, 2, 0, 2)); |
| |
| for (int i = 0; i < len; i++) { |
| /* Load (unaligned) input data */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| |
| m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| m0 = _mm_loadu_ps(&_x[2 * i + 16]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 20]); |
| m2 = _mm_loadu_ps(&_x[2 * i + 24]); |
| m3 = _mm_loadu_ps(&_x[2 * i + 28]); |
| |
| m8 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m9 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m10 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m11 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Quad multiply */ |
| m0 = _mm_mul_ps(m4, m12); |
| m1 = _mm_mul_ps(m5, m12); |
| m2 = _mm_mul_ps(m6, m13); |
| m3 = _mm_mul_ps(m7, m13); |
| |
| m4 = _mm_mul_ps(m8, m14); |
| m5 = _mm_mul_ps(m9, m14); |
| m6 = _mm_mul_ps(m10, m15); |
| m7 = _mm_mul_ps(m11, m15); |
| |
| /* Sum and store */ |
| m8 = _mm_add_ps(m0, m2); |
| m9 = _mm_add_ps(m1, m3); |
| m10 = _mm_add_ps(m4, m6); |
| m11 = _mm_add_ps(m5, m7); |
| |
| m0 = _mm_add_ps(m8, m10); |
| m1 = _mm_add_ps(m9, m11); |
| m2 = _mm_hadd_ps(m0, m1); |
| m3 = _mm_hadd_ps(m2, m2); |
| |
| _mm_store_ss(&y[2 * i + 0], m3); |
| m3 = _mm_shuffle_ps(m3, m3, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m3); |
| } |
| } |
| |
| /* 20-tap SSE complex-real convolution */ |
| void sse_conv_real20(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* See NOTE in sse_conv_real4() */ |
| |
| __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| __m128 m8, m9, m11, m12, m13, m14, m15; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[0]); |
| m1 = _mm_load_ps(&h[4]); |
| m2 = _mm_load_ps(&h[8]); |
| m3 = _mm_load_ps(&h[12]); |
| m4 = _mm_load_ps(&h[16]); |
| m5 = _mm_load_ps(&h[20]); |
| m6 = _mm_load_ps(&h[24]); |
| m7 = _mm_load_ps(&h[28]); |
| m8 = _mm_load_ps(&h[32]); |
| m9 = _mm_load_ps(&h[36]); |
| |
| m11 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m12 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m13 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| m14 = _mm_shuffle_ps(m6, m7, _MM_SHUFFLE(0, 2, 0, 2)); |
| m15 = _mm_shuffle_ps(m8, m9, _MM_SHUFFLE(0, 2, 0, 2)); |
| |
| for (int i = 0; i < len; i++) { |
| /* Multiply-accumulate first 12 taps */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 4]); |
| m2 = _mm_loadu_ps(&_x[2 * i + 8]); |
| m3 = _mm_loadu_ps(&_x[2 * i + 12]); |
| m4 = _mm_loadu_ps(&_x[2 * i + 16]); |
| m5 = _mm_loadu_ps(&_x[2 * i + 20]); |
| |
| m6 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m7 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m8 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m9 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| m0 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(0, 2, 0, 2)); |
| m1 = _mm_shuffle_ps(m4, m5, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| m2 = _mm_mul_ps(m6, m11); |
| m3 = _mm_mul_ps(m7, m11); |
| m4 = _mm_mul_ps(m8, m12); |
| m5 = _mm_mul_ps(m9, m12); |
| m6 = _mm_mul_ps(m0, m13); |
| m7 = _mm_mul_ps(m1, m13); |
| |
| m0 = _mm_add_ps(m2, m4); |
| m1 = _mm_add_ps(m3, m5); |
| m8 = _mm_add_ps(m0, m6); |
| m9 = _mm_add_ps(m1, m7); |
| |
| /* Multiply-accumulate last 8 taps */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 24]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 28]); |
| m2 = _mm_loadu_ps(&_x[2 * i + 32]); |
| m3 = _mm_loadu_ps(&_x[2 * i + 36]); |
| |
| m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| m0 = _mm_mul_ps(m4, m14); |
| m1 = _mm_mul_ps(m5, m14); |
| m2 = _mm_mul_ps(m6, m15); |
| m3 = _mm_mul_ps(m7, m15); |
| |
| m4 = _mm_add_ps(m0, m2); |
| m5 = _mm_add_ps(m1, m3); |
| |
| /* Final sum and store */ |
| m0 = _mm_add_ps(m8, m4); |
| m1 = _mm_add_ps(m9, m5); |
| m2 = _mm_hadd_ps(m0, m1); |
| m3 = _mm_hadd_ps(m2, m2); |
| |
| _mm_store_ss(&y[2 * i + 0], m3); |
| m3 = _mm_shuffle_ps(m3, m3, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m3); |
| } |
| } |
| |
| /* 4*N-tap SSE complex-real convolution */ |
| void sse_conv_real4n(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* See NOTE in sse_conv_real4() */ |
| |
| __m128 m0, m1, m2, m4, m5, m6, m7; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| for (int i = 0; i < len; i++) { |
| /* Zero */ |
| m6 = _mm_setzero_ps(); |
| m7 = _mm_setzero_ps(); |
| |
| for (int n = 0; n < h_len / 4; n++) { |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[8 * n + 0]); |
| m1 = _mm_load_ps(&h[8 * n + 4]); |
| m2 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| |
| /* Load (unaligned) input data */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 8 * n + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 8 * n + 4]); |
| m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Quad multiply */ |
| m0 = _mm_mul_ps(m2, m4); |
| m1 = _mm_mul_ps(m2, m5); |
| |
| /* Accumulate */ |
| m6 = _mm_add_ps(m6, m0); |
| m7 = _mm_add_ps(m7, m1); |
| } |
| |
| m0 = _mm_hadd_ps(m6, m7); |
| m0 = _mm_hadd_ps(m0, m0); |
| |
| _mm_store_ss(&y[2 * i + 0], m0); |
| m0 = _mm_shuffle_ps(m0, m0, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m0); |
| } |
| } |
| |
| /* 4*N-tap SSE complex-complex convolution */ |
| void sse_conv_cmplx_4n(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* NOTE: The parameter list of this function has to match the parameter |
| * list of _base_convolve_complex() in convolve_base.c. This specific |
| * implementation, ignores some of the parameters of |
| * _base_convolve_complex(), which are: x_len, y_len, offset, step. */ |
| |
| __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| for (int i = 0; i < len; i++) { |
| /* Zero */ |
| m6 = _mm_setzero_ps(); |
| m7 = _mm_setzero_ps(); |
| |
| for (int n = 0; n < h_len / 4; n++) { |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[8 * n + 0]); |
| m1 = _mm_load_ps(&h[8 * n + 4]); |
| m2 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m3 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Load (unaligned) input data */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 8 * n + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 8 * n + 4]); |
| m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Quad multiply */ |
| m0 = _mm_mul_ps(m2, m4); |
| m1 = _mm_mul_ps(m3, m5); |
| |
| m2 = _mm_mul_ps(m2, m5); |
| m3 = _mm_mul_ps(m3, m4); |
| |
| /* Sum */ |
| m0 = _mm_sub_ps(m0, m1); |
| m2 = _mm_add_ps(m2, m3); |
| |
| /* Accumulate */ |
| m6 = _mm_add_ps(m6, m0); |
| m7 = _mm_add_ps(m7, m2); |
| } |
| |
| m0 = _mm_hadd_ps(m6, m7); |
| m0 = _mm_hadd_ps(m0, m0); |
| |
| _mm_store_ss(&y[2 * i + 0], m0); |
| m0 = _mm_shuffle_ps(m0, m0, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m0); |
| } |
| } |
| |
| /* 8*N-tap SSE complex-complex convolution */ |
| void sse_conv_cmplx_8n(const float *x, int x_len, |
| const float *h, int h_len, |
| float *y, int y_len, |
| int start, int len, int step, int offset) |
| { |
| /* See NOTE in sse_conv_cmplx_4n() */ |
| |
| __m128 m0, m1, m2, m3, m4, m5, m6, m7; |
| __m128 m8, m9, m10, m11, m12, m13, m14, m15; |
| |
| const float *_x = &x[2 * (-(h_len - 1) + start)]; |
| |
| for (int i = 0; i < len; i++) { |
| /* Zero */ |
| m12 = _mm_setzero_ps(); |
| m13 = _mm_setzero_ps(); |
| m14 = _mm_setzero_ps(); |
| m15 = _mm_setzero_ps(); |
| |
| for (int n = 0; n < h_len / 8; n++) { |
| /* Load (aligned) filter taps */ |
| m0 = _mm_load_ps(&h[16 * n + 0]); |
| m1 = _mm_load_ps(&h[16 * n + 4]); |
| m2 = _mm_load_ps(&h[16 * n + 8]); |
| m3 = _mm_load_ps(&h[16 * n + 12]); |
| |
| m4 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m5 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m6 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m7 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Load (unaligned) input data */ |
| m0 = _mm_loadu_ps(&_x[2 * i + 16 * n + 0]); |
| m1 = _mm_loadu_ps(&_x[2 * i + 16 * n + 4]); |
| m2 = _mm_loadu_ps(&_x[2 * i + 16 * n + 8]); |
| m3 = _mm_loadu_ps(&_x[2 * i + 16 * n + 12]); |
| |
| m8 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(0, 2, 0, 2)); |
| m9 = _mm_shuffle_ps(m0, m1, _MM_SHUFFLE(1, 3, 1, 3)); |
| m10 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(0, 2, 0, 2)); |
| m11 = _mm_shuffle_ps(m2, m3, _MM_SHUFFLE(1, 3, 1, 3)); |
| |
| /* Quad multiply */ |
| m0 = _mm_mul_ps(m4, m8); |
| m1 = _mm_mul_ps(m5, m9); |
| m2 = _mm_mul_ps(m6, m10); |
| m3 = _mm_mul_ps(m7, m11); |
| |
| m4 = _mm_mul_ps(m4, m9); |
| m5 = _mm_mul_ps(m5, m8); |
| m6 = _mm_mul_ps(m6, m11); |
| m7 = _mm_mul_ps(m7, m10); |
| |
| /* Sum */ |
| m0 = _mm_sub_ps(m0, m1); |
| m2 = _mm_sub_ps(m2, m3); |
| m4 = _mm_add_ps(m4, m5); |
| m6 = _mm_add_ps(m6, m7); |
| |
| /* Accumulate */ |
| m12 = _mm_add_ps(m12, m0); |
| m13 = _mm_add_ps(m13, m2); |
| m14 = _mm_add_ps(m14, m4); |
| m15 = _mm_add_ps(m15, m6); |
| } |
| |
| m0 = _mm_add_ps(m12, m13); |
| m1 = _mm_add_ps(m14, m15); |
| m2 = _mm_hadd_ps(m0, m1); |
| m2 = _mm_hadd_ps(m2, m2); |
| |
| _mm_store_ss(&y[2 * i + 0], m2); |
| m2 = _mm_shuffle_ps(m2, m2, _MM_SHUFFLE(0, 3, 2, 1)); |
| _mm_store_ss(&y[2 * i + 1], m2); |
| } |
| } |
| #endif |