168 lines
5.4 KiB
C
168 lines
5.4 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 saxpy_kernel_64(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha) {
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__asm__("vlrepf %%v0,%[alpha]\n\t"
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"srlg %[n],%[n],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,%[x])\n\t"
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"pfd 2, 1024(%%r1,%[y])\n\t"
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"vl %%v16,0(%%r1,%[x])\n\t"
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"vl %%v17,16(%%r1,%[x])\n\t"
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"vl %%v18,32(%%r1,%[x])\n\t"
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"vl %%v19,48(%%r1,%[x])\n\t"
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"vl %%v20,0(%%r1,%[y])\n\t"
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"vl %%v21,16(%%r1,%[y])\n\t"
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"vl %%v22,32(%%r1,%[y])\n\t"
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"vl %%v23,48(%%r1,%[y])\n\t"
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"vl %%v24,64(%%r1,%[x])\n\t"
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"vl %%v25,80(%%r1,%[x])\n\t"
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"vl %%v26,96(%%r1,%[x])\n\t"
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"vl %%v27,112(%%r1,%[x])\n\t"
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"vl %%v28,64(%%r1,%[y])\n\t"
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"vl %%v29,80(%%r1,%[y])\n\t"
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"vl %%v30,96(%%r1,%[y])\n\t"
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"vl %%v31,112(%%r1,%[y])\n\t"
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"vfmasb %%v16,%%v0,%%v16,%%v20\n\t"
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"vfmasb %%v17,%%v0,%%v17,%%v21\n\t"
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"vfmasb %%v18,%%v0,%%v18,%%v22\n\t"
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"vfmasb %%v19,%%v0,%%v19,%%v23\n\t"
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"vfmasb %%v24,%%v0,%%v24,%%v28\n\t"
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"vfmasb %%v25,%%v0,%%v25,%%v29\n\t"
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"vfmasb %%v26,%%v0,%%v26,%%v30\n\t"
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"vfmasb %%v27,%%v0,%%v27,%%v31\n\t"
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"vst %%v16,0(%%r1,%[y])\n\t"
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"vst %%v17,16(%%r1,%[y])\n\t"
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"vst %%v18,32(%%r1,%[y])\n\t"
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"vst %%v19,48(%%r1,%[y])\n\t"
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"vst %%v24,64(%%r1,%[y])\n\t"
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"vst %%v25,80(%%r1,%[y])\n\t"
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"vst %%v26,96(%%r1,%[y])\n\t"
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"vst %%v27,112(%%r1,%[y])\n\t"
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"vl %%v16,128(%%r1,%[x])\n\t"
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"vl %%v17,144(%%r1,%[x])\n\t"
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"vl %%v18,160(%%r1,%[x])\n\t"
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"vl %%v19,176(%%r1,%[x])\n\t"
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"vl %%v20,128(%%r1,%[y])\n\t"
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"vl %%v21,144(%%r1,%[y])\n\t"
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"vl %%v22,160(%%r1,%[y])\n\t"
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"vl %%v23,176(%%r1,%[y])\n\t"
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"vl %%v24,192(%%r1,%[x])\n\t"
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"vl %%v25,208(%%r1,%[x])\n\t"
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"vl %%v26,224(%%r1,%[x])\n\t"
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"vl %%v27,240(%%r1,%[x])\n\t"
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"vl %%v28,192(%%r1,%[y])\n\t"
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"vl %%v29,208(%%r1,%[y])\n\t"
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"vl %%v30,224(%%r1,%[y])\n\t"
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"vl %%v31,240(%%r1,%[y])\n\t"
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"vfmasb %%v16,%%v0,%%v16,%%v20\n\t"
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"vfmasb %%v17,%%v0,%%v17,%%v21\n\t"
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"vfmasb %%v18,%%v0,%%v18,%%v22\n\t"
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"vfmasb %%v19,%%v0,%%v19,%%v23\n\t"
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"vfmasb %%v24,%%v0,%%v24,%%v28\n\t"
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"vfmasb %%v25,%%v0,%%v25,%%v29\n\t"
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"vfmasb %%v26,%%v0,%%v26,%%v30\n\t"
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"vfmasb %%v27,%%v0,%%v27,%%v31\n\t"
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"vst %%v16,128(%%r1,%[y])\n\t"
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"vst %%v17,144(%%r1,%[y])\n\t"
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"vst %%v18,160(%%r1,%[y])\n\t"
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"vst %%v19,176(%%r1,%[y])\n\t"
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"vst %%v24,192(%%r1,%[y])\n\t"
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"vst %%v25,208(%%r1,%[y])\n\t"
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"vst %%v26,224(%%r1,%[y])\n\t"
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"vst %%v27,240(%%r1,%[y])\n\t"
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"agfi %%r1,256\n\t"
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"brctg %[n],0b"
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: "+m"(*(FLOAT (*)[n]) y),[n] "+&r"(n)
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: [y] "a"(y), "m"(*(const FLOAT (*)[n]) x),[x] "a"(x),
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[alpha] "Q"(*alpha)
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: "cc", "r1", "v0", "v16", "v17", "v18", "v19", "v20", "v21", "v22",
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"v23", "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31");
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}
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x,
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BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy,
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BLASLONG dummy2) {
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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 & -64;
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if (n1)
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saxpy_kernel_64(n1, x, y, &da);
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i = n1;
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while (i < n) {
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y[i] += da * x[i];
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i++;
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}
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return 0;
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}
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BLASLONG n1 = n & -4;
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while (i < n1) {
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FLOAT m1 = da * x[ix];
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FLOAT m2 = da * x[ix + inc_x];
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FLOAT m3 = da * x[ix + 2 * inc_x];
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FLOAT m4 = da * x[ix + 3 * inc_x];
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y[iy] += m1;
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y[iy + inc_y] += m2;
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y[iy + 2 * inc_y] += m3;
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y[iy + 3 * inc_y] += m4;
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ix += inc_x * 4;
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iy += inc_y * 4;
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i += 4;
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}
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while (i < n) {
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y[iy] += da * x[ix];
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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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