171 lines
6.1 KiB
C
171 lines
6.1 KiB
C
/***************************************************************************
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Copyright (c) 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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static void zaxpy_kernel_8(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha)
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{
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__asm__ volatile(
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#if !defined(CONJ)
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"vlrepg %%v0,0(%3) \n\t"
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"vleg %%v1,8(%3),0 \n\t"
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"wflcdb %%v1,%%v1 \n\t"
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"vleg %%v1,8(%3),1 \n\t"
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#else
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"vleg %%v0,0(%3),1 \n\t"
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"vflcdb %%v0,%%v0 \n\t"
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"vleg %%v0,0(%3),0 \n\t"
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"vlrepg %%v1,8(%3) \n\t"
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#endif
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"srlg %%r0,%0,3 \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,%1) \n\t"
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"pfd 2, 1024(%%r1,%2) \n\t"
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"vl %%v16,0(%%r1,%1) \n\t"
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"vl %%v17,16(%%r1,%1) \n\t"
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"vl %%v18,32(%%r1,%1) \n\t"
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"vl %%v19,48(%%r1,%1) \n\t"
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"vl %%v20,0(%%r1,%2) \n\t"
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"vl %%v21,16(%%r1,%2) \n\t"
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"vl %%v22,32(%%r1,%2) \n\t"
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"vl %%v23,48(%%r1,%2) \n\t"
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"vpdi %%v24,%%v16,%%v16,4 \n\t"
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"vpdi %%v25,%%v17,%%v17,4 \n\t"
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"vpdi %%v26,%%v18,%%v18,4 \n\t"
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"vpdi %%v27,%%v19,%%v19,4 \n\t"
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"vfmadb %%v28,%%v16,%%v0,%%v20 \n\t"
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"vfmadb %%v29,%%v17,%%v0,%%v21 \n\t"
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"vfmadb %%v30,%%v18,%%v0,%%v22 \n\t"
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"vfmadb %%v31,%%v19,%%v0,%%v23 \n\t"
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"vfmadb %%v28,%%v24,%%v1,%%v28 \n\t"
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"vfmadb %%v29,%%v25,%%v1,%%v29 \n\t"
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"vfmadb %%v30,%%v26,%%v1,%%v30 \n\t"
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"vfmadb %%v31,%%v27,%%v1,%%v31 \n\t"
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"vst %%v28,0(%%r1,%2) \n\t"
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"vst %%v29,16(%%r1,%2) \n\t"
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"vst %%v30,32(%%r1,%2) \n\t"
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"vst %%v31,48(%%r1,%2) \n\t"
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"vl %%v16,64(%%r1,%1) \n\t"
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"vl %%v17,80(%%r1,%1) \n\t"
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"vl %%v18,96(%%r1,%1) \n\t"
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"vl %%v19,112(%%r1,%1) \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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"vpdi %%v24,%%v16,%%v16,4 \n\t"
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"vpdi %%v25,%%v17,%%v17,4 \n\t"
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"vpdi %%v26,%%v18,%%v18,4 \n\t"
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"vpdi %%v27,%%v19,%%v19,4 \n\t"
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"vfmadb %%v28,%%v16,%%v0,%%v20 \n\t"
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"vfmadb %%v29,%%v17,%%v0,%%v21 \n\t"
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"vfmadb %%v30,%%v18,%%v0,%%v22 \n\t"
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"vfmadb %%v31,%%v19,%%v0,%%v23 \n\t"
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"vfmadb %%v28,%%v24,%%v1,%%v28 \n\t"
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"vfmadb %%v29,%%v25,%%v1,%%v29 \n\t"
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"vfmadb %%v30,%%v26,%%v1,%%v30 \n\t"
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"vfmadb %%v31,%%v27,%%v1,%%v31 \n\t"
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"vst %%v28,64(%%r1,%2) \n\t"
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"vst %%v29,80(%%r1,%2) \n\t"
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"vst %%v30,96(%%r1,%2) \n\t"
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"vst %%v31,112(%%r1,%2) \n\t"
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"agfi %%r1,128 \n\t"
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"brctg %%r0,0b "
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:
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:"r"(n),"ZR"((const FLOAT (*)[n * 2])x),"ZR"((FLOAT (*)[n * 2])y),"ZQ"((const FLOAT (*)[2])alpha)
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:"memory","cc","r0","r1","v0","v1","v16","v17","v18","v19","v20","v21","v22","v23","v24","v25","v26","v27","v28","v29","v30","v31"
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);
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}
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2) {
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BLASLONG i = 0;
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BLASLONG ix = 0, iy = 0;
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FLOAT da[2] __attribute__ ((aligned(16)));
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if (n <= 0) return (0);
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if ((inc_x == 1) && (inc_y == 1)) {
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BLASLONG n1 = n & -8;
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if (n1) {
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da[0] = da_r;
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da[1] = da_i;
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zaxpy_kernel_8(n1, x, y, da);
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ix = 2 * n1;
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}
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i = n1;
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while (i < n) {
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#if !defined(CONJ)
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y[ix] += (da_r * x[ix] - da_i * x[ix + 1]);
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y[ix + 1] += (da_r * x[ix + 1] + da_i * x[ix]);
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#else
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y[ix] += (da_r * x[ix] + da_i * x[ix + 1]);
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y[ix + 1] -= (da_r * x[ix + 1] - da_i * x[ix]);
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#endif
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i++;
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ix += 2;
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}
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return (0);
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}
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inc_x *= 2;
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inc_y *= 2;
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while (i < n) {
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#if !defined(CONJ)
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y[iy] += (da_r * x[ix] - da_i * x[ix + 1]);
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y[iy + 1] += (da_r * x[ix + 1] + da_i * x[ix]);
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#else
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y[iy] += (da_r * x[ix] + da_i * x[ix + 1]);
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y[iy + 1] -= (da_r * x[ix + 1] - da_i * x[ix]);
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#endif
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ix += inc_x;
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iy += inc_y;
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i++;
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}
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return (0);
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}
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