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| 1 | +/*************************************************************************** |
| 2 | +Copyright (c) 2013-2017, The OpenBLAS Project |
| 3 | +All rights reserved. |
| 4 | +Redistribution and use in source and binary forms, with or without |
| 5 | +modification, are permitted provided that the following conditions are |
| 6 | +met: |
| 7 | +1. Redistributions of source code must retain the above copyright |
| 8 | +notice, this list of conditions and the following disclaimer. |
| 9 | +2. Redistributions in binary form must reproduce the above copyright |
| 10 | +notice, this list of conditions and the following disclaimer in |
| 11 | +the documentation and/or other materials provided with the |
| 12 | +distribution. |
| 13 | +3. Neither the name of the OpenBLAS project nor the names of |
| 14 | +its contributors may be used to endorse or promote products |
| 15 | +derived from this software without specific prior written permission. |
| 16 | +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 17 | +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | +ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE |
| 20 | +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 22 | +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 23 | +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 24 | +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
| 25 | +USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | + *****************************************************************************/ |
| 27 | + |
| 28 | + |
| 29 | +#include "common.h" |
| 30 | +#include <math.h> |
| 31 | + |
| 32 | +#if defined(DOUBLE) |
| 33 | +#define ABS fabs |
| 34 | +#else |
| 35 | +#define ABS fabsf |
| 36 | +#endif |
| 37 | + |
| 38 | + |
| 39 | +static FLOAT __attribute__ ((noinline)) dasum_kernel_32(BLASLONG n, FLOAT *x) { |
| 40 | + |
| 41 | + __asm__ ( |
| 42 | + "pfd 1, 0(%1) \n\t" |
| 43 | + "sllg %%r0,%0,3 \n\t" |
| 44 | + "agr %%r0,%1 \n\t" |
| 45 | + "vzero %%v0 \n\t" |
| 46 | + "vzero %%v1 \n\t" |
| 47 | + "vzero %%v2 \n\t" |
| 48 | + "vzero %%v3 \n\t" |
| 49 | + ".align 16 \n\t" |
| 50 | + "1: \n\t" |
| 51 | + "pfd 1, 256(%1 ) \n\t" |
| 52 | + "vlm %%v24,%%v31, 0(%1 ) \n\t" |
| 53 | + |
| 54 | + "vflpdb %%v24, %%v24 \n\t" |
| 55 | + "vflpdb %%v25, %%v25 \n\t" |
| 56 | + "vflpdb %%v26, %%v26 \n\t" |
| 57 | + "vflpdb %%v27, %%v27 \n\t" |
| 58 | + "vflpdb %%v28, %%v28 \n\t" |
| 59 | + "vflpdb %%v29, %%v29 \n\t" |
| 60 | + "vflpdb %%v30, %%v30 \n\t" |
| 61 | + "vflpdb %%v31, %%v31 \n\t" |
| 62 | + |
| 63 | + "vfadb %%v0,%%v0,%%v24 \n\t" |
| 64 | + "vfadb %%v1,%%v1,%%v25 \n\t" |
| 65 | + "vfadb %%v2,%%v2,%%v26 \n\t" |
| 66 | + "vfadb %%v3,%%v3,%%v27 \n\t" |
| 67 | + "vfadb %%v0,%%v0,%%v28 \n\t" |
| 68 | + "vfadb %%v1,%%v1,%%v29 \n\t" |
| 69 | + "vfadb %%v2,%%v2,%%v30 \n\t" |
| 70 | + "vfadb %%v3,%%v3,%%v31 \n\t" |
| 71 | + |
| 72 | + "vlm %%v24,%%v31, 128(%1) \n\t" |
| 73 | + |
| 74 | + "vflpdb %%v24, %%v24 \n\t" |
| 75 | + "vflpdb %%v25, %%v25 \n\t" |
| 76 | + "vflpdb %%v26, %%v26 \n\t" |
| 77 | + "vflpdb %%v27, %%v27 \n\t" |
| 78 | + "vflpdb %%v28, %%v28 \n\t" |
| 79 | + "vflpdb %%v29, %%v29 \n\t" |
| 80 | + "vflpdb %%v30, %%v30 \n\t" |
| 81 | + "vflpdb %%v31, %%v31 \n\t" |
| 82 | + "la %1,256(%1) \n\t" |
| 83 | + "vfadb %%v0,%%v0,%%v24 \n\t" |
| 84 | + "vfadb %%v1,%%v1,%%v25 \n\t" |
| 85 | + "vfadb %%v2,%%v2,%%v26 \n\t" |
| 86 | + "vfadb %%v3,%%v3,%%v27 \n\t" |
| 87 | + "vfadb %%v0,%%v0,%%v28 \n\t" |
| 88 | + "vfadb %%v1,%%v1,%%v29 \n\t" |
| 89 | + "vfadb %%v2,%%v2,%%v30 \n\t" |
| 90 | + "vfadb %%v3,%%v3,%%v31 \n\t" |
| 91 | + |
| 92 | + "clgrjl %1,%%r0,1b \n\t" |
| 93 | + "vfadb %%v24,%%v0,%%v1 \n\t" |
| 94 | + "vfadb %%v25,%%v2,%%v3 \n\t" |
| 95 | + "vfadb %%v0,%%v25,%%v24 \n\t" |
| 96 | + "vrepg %%v1,%%v0,1 \n\t" |
| 97 | + "adbr %%f0,%%f1 \n\t" |
| 98 | + : |
| 99 | + : "r"(n), "a"(x) |
| 100 | + : "cc", "memory","r0","f0","f1","v0","v1","v2","v3","v24","v25","v26","v27","v28","v29","v30","v31" |
| 101 | + ); |
| 102 | + |
| 103 | +} |
| 104 | + |
| 105 | + |
| 106 | + |
| 107 | +FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x) { |
| 108 | + BLASLONG i = 0; |
| 109 | + BLASLONG j = 0; |
| 110 | + FLOAT sumf = 0.0; |
| 111 | + BLASLONG n1; |
| 112 | + |
| 113 | + if (n <= 0 || inc_x <= 0) return sumf; |
| 114 | + |
| 115 | + if (inc_x == 1) { |
| 116 | + |
| 117 | + n1 = n & -32; |
| 118 | + |
| 119 | + if (n1 > 0) { |
| 120 | + |
| 121 | + sumf = dasum_kernel_32(n1, x); |
| 122 | + i = n1; |
| 123 | + } |
| 124 | + |
| 125 | + while (i < n) { |
| 126 | + sumf += ABS(x[i]); |
| 127 | + i++; |
| 128 | + } |
| 129 | + |
| 130 | + } else { |
| 131 | + BLASLONG n1 = n & -4; |
| 132 | + register FLOAT sum1, sum2; |
| 133 | + sum1 = 0.0; |
| 134 | + sum2 = 0.0; |
| 135 | + while (j < n1) { |
| 136 | + |
| 137 | + sum1 += ABS(x[i]); |
| 138 | + sum2 += ABS(x[i + inc_x]); |
| 139 | + sum1 += ABS(x[i + 2 * inc_x]); |
| 140 | + sum2 += ABS(x[i + 3 * inc_x]); |
| 141 | + |
| 142 | + i += inc_x * 4; |
| 143 | + j += 4; |
| 144 | + |
| 145 | + } |
| 146 | + sumf = sum1 + sum2; |
| 147 | + while (j < n) { |
| 148 | + |
| 149 | + sumf += ABS(x[i]); |
| 150 | + i += inc_x; |
| 151 | + j++; |
| 152 | + } |
| 153 | + |
| 154 | + |
| 155 | + } |
| 156 | + return sumf; |
| 157 | +} |
| 158 | + |
| 159 | + |
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