Optimized standard Blas Level-1,2 (excluding nrm2 functions) for z13 (double precision)
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Abdurrauf
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/***************************************************************************
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Copyright (c) 2013-2017, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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#include <math.h>
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#if defined(DOUBLE)
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#define ABS fabs
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#else
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#define ABS fabsf
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#endif
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static FLOAT __attribute__ ((noinline)) dasum_kernel_32(BLASLONG n, FLOAT *x) {
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__asm__ (
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"pfd 1, 0(%1) \n\t"
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"sllg %%r0,%0,3 \n\t"
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"agr %%r0,%1 \n\t"
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"vzero %%v0 \n\t"
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"vzero %%v1 \n\t"
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"vzero %%v2 \n\t"
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"vzero %%v3 \n\t"
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".align 16 \n\t"
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"1: \n\t"
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"pfd 1, 256(%1 ) \n\t"
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"vlm %%v24,%%v31, 0(%1 ) \n\t"
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"vflpdb %%v24, %%v24 \n\t"
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"vflpdb %%v25, %%v25 \n\t"
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"vflpdb %%v26, %%v26 \n\t"
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"vflpdb %%v27, %%v27 \n\t"
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"vflpdb %%v28, %%v28 \n\t"
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"vflpdb %%v29, %%v29 \n\t"
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"vflpdb %%v30, %%v30 \n\t"
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"vflpdb %%v31, %%v31 \n\t"
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"vfadb %%v0,%%v0,%%v24 \n\t"
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"vfadb %%v1,%%v1,%%v25 \n\t"
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"vfadb %%v2,%%v2,%%v26 \n\t"
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"vfadb %%v3,%%v3,%%v27 \n\t"
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"vfadb %%v0,%%v0,%%v28 \n\t"
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"vfadb %%v1,%%v1,%%v29 \n\t"
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"vfadb %%v2,%%v2,%%v30 \n\t"
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"vfadb %%v3,%%v3,%%v31 \n\t"
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"vlm %%v24,%%v31, 128(%1) \n\t"
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"vflpdb %%v24, %%v24 \n\t"
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"vflpdb %%v25, %%v25 \n\t"
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"vflpdb %%v26, %%v26 \n\t"
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"vflpdb %%v27, %%v27 \n\t"
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"vflpdb %%v28, %%v28 \n\t"
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"vflpdb %%v29, %%v29 \n\t"
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"vflpdb %%v30, %%v30 \n\t"
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"vflpdb %%v31, %%v31 \n\t"
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"la %1,256(%1) \n\t"
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"vfadb %%v0,%%v0,%%v24 \n\t"
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"vfadb %%v1,%%v1,%%v25 \n\t"
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"vfadb %%v2,%%v2,%%v26 \n\t"
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"vfadb %%v3,%%v3,%%v27 \n\t"
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"vfadb %%v0,%%v0,%%v28 \n\t"
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"vfadb %%v1,%%v1,%%v29 \n\t"
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"vfadb %%v2,%%v2,%%v30 \n\t"
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"vfadb %%v3,%%v3,%%v31 \n\t"
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"clgrjl %1,%%r0,1b \n\t"
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"vfadb %%v24,%%v0,%%v1 \n\t"
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"vfadb %%v25,%%v2,%%v3 \n\t"
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"vfadb %%v0,%%v25,%%v24 \n\t"
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"vrepg %%v1,%%v0,1 \n\t"
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"adbr %%f0,%%f1 \n\t"
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:
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: "r"(n), "a"(x)
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: "cc", "memory","r0","f0","f1","v0","v1","v2","v3","v24","v25","v26","v27","v28","v29","v30","v31"
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);
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}
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FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x) {
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BLASLONG i = 0;
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BLASLONG j = 0;
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FLOAT sumf = 0.0;
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BLASLONG n1;
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if (n <= 0 || inc_x <= 0) return sumf;
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if (inc_x == 1) {
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n1 = n & -32;
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if (n1 > 0) {
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sumf = dasum_kernel_32(n1, x);
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i = n1;
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}
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while (i < n) {
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sumf += ABS(x[i]);
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i++;
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}
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} else {
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BLASLONG n1 = n & -4;
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register FLOAT sum1, sum2;
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sum1 = 0.0;
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sum2 = 0.0;
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while (j < n1) {
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sum1 += ABS(x[i]);
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sum2 += ABS(x[i + inc_x]);
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sum1 += ABS(x[i + 2 * inc_x]);
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sum2 += ABS(x[i + 3 * inc_x]);
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i += inc_x * 4;
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j += 4;
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}
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sumf = sum1 + sum2;
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while (j < n) {
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sumf += ABS(x[i]);
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i += inc_x;
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j++;
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}
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}
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return sumf;
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}
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