89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/***************************************************************************
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Copyright (c) 2013-2019, 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 zcopy_kernel_16(BLASLONG n, FLOAT *x, FLOAT *y) {
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__asm__("srlg %[n],%[n],4\n\t"
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"0:\n\t"
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"pfd 1, 1024(%[x])\n\t"
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"pfd 2, 1024(%[y])\n\t"
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"mvc 0(256,%[y]),0(%[x])\n\t"
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"la %[x],256(%[x])\n\t"
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"la %[y],256(%[y])\n\t"
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"brctg %[n],0b"
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: "=m"(*(FLOAT (*)[n * 2]) y),[x] "+&a"(x),[y] "+&a"(y),
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[n] "+&r"(n)
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: "m"(*(const FLOAT (*)[n * 2]) x)
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: "cc");
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}
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int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y) {
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BLASLONG i = 0;
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BLASLONG ix = 0, iy = 0;
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if (n <= 0)
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return (0);
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if ((inc_x == 1) && (inc_y == 1)) {
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BLASLONG n1 = n & -16;
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if (n1 > 0) {
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zcopy_kernel_16(n1, x, y);
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i = n1;
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ix = n1 * 2;
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iy = n1 * 2;
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}
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while (i < n) {
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y[iy] = x[iy];
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y[iy + 1] = x[ix + 1];
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ix += 2;
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iy += 2;
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i++;
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}
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} else {
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BLASLONG inc_x2 = 2 * inc_x;
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BLASLONG inc_y2 = 2 * inc_y;
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while (i < n) {
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y[iy] = x[ix];
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y[iy + 1] = x[ix + 1];
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ix += inc_x2;
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iy += inc_y2;
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i++;
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}
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}
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return (0);
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}
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