[ZARCH] Z14 support, BLAS 1/2 single precision implementations, Some missing double precision implementations, Gemv optimization
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maamountki
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/***************************************************************************
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Copyright (c) 2013-2018, 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 sasum_kernel_64(BLASLONG n, FLOAT *x)
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{
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FLOAT asum;
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__asm__ (
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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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"srlg %%r0,%1,6 \n\t"
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"xgr %%r1,%%r1 \n\t"
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"0: \n\t"
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"pfd 1, 1024(%%r1,%2) \n\t"
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"vl %%v16, 0(%%r1,%2) \n\t"
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"vl %%v17, 16(%%r1,%2) \n\t"
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"vl %%v18, 32(%%r1,%2) \n\t"
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"vl %%v19, 48(%%r1,%2) \n\t"
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"vl %%v20, 64(%%r1,%2) \n\t"
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"vl %%v21, 80(%%r1,%2) \n\t"
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"vl %%v22, 96(%%r1,%2) \n\t"
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"vl %%v23, 112(%%r1,%2) \n\t"
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"vflpsb %%v16, %%v16 \n\t"
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"vflpsb %%v17, %%v17 \n\t"
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"vflpsb %%v18, %%v18 \n\t"
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"vflpsb %%v19, %%v19 \n\t"
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"vflpsb %%v20, %%v20 \n\t"
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"vflpsb %%v21, %%v21 \n\t"
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"vflpsb %%v22, %%v22 \n\t"
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"vflpsb %%v23, %%v23 \n\t"
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"vfasb %%v0,%%v0,%%v16 \n\t"
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"vfasb %%v1,%%v1,%%v17 \n\t"
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"vfasb %%v2,%%v2,%%v18 \n\t"
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"vfasb %%v3,%%v3,%%v19 \n\t"
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"vfasb %%v0,%%v0,%%v20 \n\t"
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"vfasb %%v1,%%v1,%%v21 \n\t"
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"vfasb %%v2,%%v2,%%v22 \n\t"
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"vfasb %%v3,%%v3,%%v23 \n\t"
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"vl %%v16, 128(%%r1,%2) \n\t"
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"vl %%v17, 144(%%r1,%2) \n\t"
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"vl %%v18, 160(%%r1,%2) \n\t"
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"vl %%v19, 176(%%r1,%2) \n\t"
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"vl %%v20, 192(%%r1,%2) \n\t"
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"vl %%v21, 208(%%r1,%2) \n\t"
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"vl %%v22, 224(%%r1,%2) \n\t"
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"vl %%v23, 240(%%r1,%2) \n\t"
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"vflpsb %%v16, %%v16 \n\t"
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"vflpsb %%v17, %%v17 \n\t"
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"vflpsb %%v18, %%v18 \n\t"
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"vflpsb %%v19, %%v19 \n\t"
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"vflpsb %%v20, %%v20 \n\t"
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"vflpsb %%v21, %%v21 \n\t"
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"vflpsb %%v22, %%v22 \n\t"
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"vflpsb %%v23, %%v23 \n\t"
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"vfasb %%v0,%%v0,%%v16 \n\t"
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"vfasb %%v1,%%v1,%%v17 \n\t"
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"vfasb %%v2,%%v2,%%v18 \n\t"
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"vfasb %%v3,%%v3,%%v19 \n\t"
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"vfasb %%v0,%%v0,%%v20 \n\t"
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"vfasb %%v1,%%v1,%%v21 \n\t"
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"vfasb %%v2,%%v2,%%v22 \n\t"
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"vfasb %%v3,%%v3,%%v23 \n\t"
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"agfi %%r1,256 \n\t"
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"brctg %%r0,0b \n\t"
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"vfasb %%v0,%%v0,%%v1 \n\t"
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"vfasb %%v0,%%v0,%%v2 \n\t"
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"vfasb %%v0,%%v0,%%v3 \n\t"
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"veslg %%v1,%%v0,32 \n\t"
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"vfasb %%v0,%%v0,%%v1 \n\t"
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"vrepf %%v1,%%v0,2 \n\t"
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"aebr %%f0,%%f1 \n\t"
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"ler %0,%%f0 "
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:"=f"(asum)
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:"r"(n),"ZR"((const FLOAT (*)[n])x)
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:"memory","cc","r0","r1","v0","v1","v2","v3","v16","v17","v18","v19","v20","v21","v22","v23"
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);
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return asum;
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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 & -64;
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if (n1 > 0) {
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sumf = sasum_kernel_64(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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