1 /* Copyright (c) 2014, Cisco Systems, INC 2 Written by XiangMingZhu WeiZhou MinPeng YanWang 3 4 Redistribution and use in source and binary forms, with or without 5 modification, are permitted provided that the following conditions 6 are met: 7 8 - Redistributions of source code must retain the above copyright 9 notice, this list of conditions and the following disclaimer. 10 11 - Redistributions in binary form must reproduce the above copyright 12 notice, this list of conditions and the following disclaimer in the 13 documentation and/or other materials provided with the distribution. 14 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifdef HAVE_CONFIG_H 29 #include "config.h" 30 #endif 31 32 #include <xmmintrin.h> 33 #include <emmintrin.h> 34 35 #include "macros.h" 36 #include "celt_lpc.h" 37 #include "stack_alloc.h" 38 #include "mathops.h" 39 #include "pitch.h" 40 41 #if defined(OPUS_X86_MAY_HAVE_SSE4_1) && defined(FIXED_POINT) 42 #include <smmintrin.h> 43 #include "x86cpu.h" 44 45 opus_val32 celt_inner_prod_sse4_1(const opus_val16 *x, const opus_val16 *y, 46 int N) 47 { 48 opus_int i, dataSize16; 49 opus_int32 sum; 50 __m128i inVec1_76543210, inVec1_FEDCBA98, acc1; 51 __m128i inVec2_76543210, inVec2_FEDCBA98, acc2; 52 __m128i inVec1_3210, inVec2_3210; 53 54 sum = 0; 55 dataSize16 = N & ~15; 56 57 acc1 = _mm_setzero_si128(); 58 acc2 = _mm_setzero_si128(); 59 60 for (i=0;i<dataSize16;i+=16) { 61 inVec1_76543210 = _mm_loadu_si128((__m128i *)(&x[i + 0])); 62 inVec2_76543210 = _mm_loadu_si128((__m128i *)(&y[i + 0])); 63 64 inVec1_FEDCBA98 = _mm_loadu_si128((__m128i *)(&x[i + 8])); 65 inVec2_FEDCBA98 = _mm_loadu_si128((__m128i *)(&y[i + 8])); 66 67 inVec1_76543210 = _mm_madd_epi16(inVec1_76543210, inVec2_76543210); 68 inVec1_FEDCBA98 = _mm_madd_epi16(inVec1_FEDCBA98, inVec2_FEDCBA98); 69 70 acc1 = _mm_add_epi32(acc1, inVec1_76543210); 71 acc2 = _mm_add_epi32(acc2, inVec1_FEDCBA98); 72 } 73 74 acc1 = _mm_add_epi32(acc1, acc2); 75 76 if (N - i >= 8) 77 { 78 inVec1_76543210 = _mm_loadu_si128((__m128i *)(&x[i + 0])); 79 inVec2_76543210 = _mm_loadu_si128((__m128i *)(&y[i + 0])); 80 81 inVec1_76543210 = _mm_madd_epi16(inVec1_76543210, inVec2_76543210); 82 83 acc1 = _mm_add_epi32(acc1, inVec1_76543210); 84 i += 8; 85 } 86 87 if (N - i >= 4) 88 { 89 inVec1_3210 = OP_CVTEPI16_EPI32_M64(&x[i + 0]); 90 inVec2_3210 = OP_CVTEPI16_EPI32_M64(&y[i + 0]); 91 92 inVec1_3210 = _mm_mullo_epi32(inVec1_3210, inVec2_3210); 93 94 acc1 = _mm_add_epi32(acc1, inVec1_3210); 95 i += 4; 96 } 97 98 acc1 = _mm_add_epi32(acc1, _mm_unpackhi_epi64(acc1, acc1)); 99 acc1 = _mm_add_epi32(acc1, _mm_shufflelo_epi16(acc1, 0x0E)); 100 101 sum += _mm_cvtsi128_si32(acc1); 102 103 for (;i<N;i++) 104 { 105 sum = silk_SMLABB(sum, x[i], y[i]); 106 } 107 108 return sum; 109 } 110 111 void xcorr_kernel_sse4_1(const opus_val16 * x, const opus_val16 * y, opus_val32 sum[ 4 ], int len) 112 { 113 int j; 114 115 __m128i vecX, vecX0, vecX1, vecX2, vecX3; 116 __m128i vecY0, vecY1, vecY2, vecY3; 117 __m128i sum0, sum1, sum2, sum3, vecSum; 118 __m128i initSum; 119 120 celt_assert(len >= 3); 121 122 sum0 = _mm_setzero_si128(); 123 sum1 = _mm_setzero_si128(); 124 sum2 = _mm_setzero_si128(); 125 sum3 = _mm_setzero_si128(); 126 127 for (j=0;j<(len-7);j+=8) 128 { 129 vecX = _mm_loadu_si128((__m128i *)(&x[j + 0])); 130 vecY0 = _mm_loadu_si128((__m128i *)(&y[j + 0])); 131 vecY1 = _mm_loadu_si128((__m128i *)(&y[j + 1])); 132 vecY2 = _mm_loadu_si128((__m128i *)(&y[j + 2])); 133 vecY3 = _mm_loadu_si128((__m128i *)(&y[j + 3])); 134 135 sum0 = _mm_add_epi32(sum0, _mm_madd_epi16(vecX, vecY0)); 136 sum1 = _mm_add_epi32(sum1, _mm_madd_epi16(vecX, vecY1)); 137 sum2 = _mm_add_epi32(sum2, _mm_madd_epi16(vecX, vecY2)); 138 sum3 = _mm_add_epi32(sum3, _mm_madd_epi16(vecX, vecY3)); 139 } 140 141 sum0 = _mm_add_epi32(sum0, _mm_unpackhi_epi64( sum0, sum0)); 142 sum0 = _mm_add_epi32(sum0, _mm_shufflelo_epi16( sum0, 0x0E)); 143 144 sum1 = _mm_add_epi32(sum1, _mm_unpackhi_epi64( sum1, sum1)); 145 sum1 = _mm_add_epi32(sum1, _mm_shufflelo_epi16( sum1, 0x0E)); 146 147 sum2 = _mm_add_epi32(sum2, _mm_unpackhi_epi64( sum2, sum2)); 148 sum2 = _mm_add_epi32(sum2, _mm_shufflelo_epi16( sum2, 0x0E)); 149 150 sum3 = _mm_add_epi32(sum3, _mm_unpackhi_epi64( sum3, sum3)); 151 sum3 = _mm_add_epi32(sum3, _mm_shufflelo_epi16( sum3, 0x0E)); 152 153 vecSum = _mm_unpacklo_epi64(_mm_unpacklo_epi32(sum0, sum1), 154 _mm_unpacklo_epi32(sum2, sum3)); 155 156 for (;j<(len-3);j+=4) 157 { 158 vecX = OP_CVTEPI16_EPI32_M64(&x[j + 0]); 159 vecX0 = _mm_shuffle_epi32(vecX, 0x00); 160 vecX1 = _mm_shuffle_epi32(vecX, 0x55); 161 vecX2 = _mm_shuffle_epi32(vecX, 0xaa); 162 vecX3 = _mm_shuffle_epi32(vecX, 0xff); 163 164 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]); 165 vecY1 = OP_CVTEPI16_EPI32_M64(&y[j + 1]); 166 vecY2 = OP_CVTEPI16_EPI32_M64(&y[j + 2]); 167 vecY3 = OP_CVTEPI16_EPI32_M64(&y[j + 3]); 168 169 sum0 = _mm_mullo_epi32(vecX0, vecY0); 170 sum1 = _mm_mullo_epi32(vecX1, vecY1); 171 sum2 = _mm_mullo_epi32(vecX2, vecY2); 172 sum3 = _mm_mullo_epi32(vecX3, vecY3); 173 174 sum0 = _mm_add_epi32(sum0, sum1); 175 sum2 = _mm_add_epi32(sum2, sum3); 176 vecSum = _mm_add_epi32(vecSum, sum0); 177 vecSum = _mm_add_epi32(vecSum, sum2); 178 } 179 180 for (;j<len;j++) 181 { 182 vecX = OP_CVTEPI16_EPI32_M64(&x[j + 0]); 183 vecX0 = _mm_shuffle_epi32(vecX, 0x00); 184 185 vecY0 = OP_CVTEPI16_EPI32_M64(&y[j + 0]); 186 187 sum0 = _mm_mullo_epi32(vecX0, vecY0); 188 vecSum = _mm_add_epi32(vecSum, sum0); 189 } 190 191 initSum = _mm_loadu_si128((__m128i *)(&sum[0])); 192 initSum = _mm_add_epi32(initSum, vecSum); 193 _mm_storeu_si128((__m128i *)sum, initSum); 194 } 195 #endif 196
