mirror of
https://github.com/OpenMathLib/OpenBLAS
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87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/***************************************************************************
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Copyright (c) 2025, 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
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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 COPYRIGHT OWNER 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 <arm_sve.h>
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#include "common.h"
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#ifdef DOUBLE
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#define SV_TYPE svfloat64_t
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#define SV_COUNT svcntd
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#define SV_DUP svdup_f64
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#define SV_WHILE svwhilelt_b64_s64
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#define SV_TRUE svptrue_b64
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#else
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#define SV_TYPE svfloat32_t
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#define SV_COUNT svcntw
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#define SV_DUP svdup_f32
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#define SV_WHILE svwhilelt_b32_s64
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#define SV_TRUE svptrue_b32
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#endif
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, 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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BLASLONG sve_size = SV_COUNT();
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if (n < 0) return (0);
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if (da == 0.0) return (0);
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if (inc_x == 1 && inc_y == 1) {
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SV_TYPE da_vec = SV_DUP(da);
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for (i = 0; i + sve_size - 1 < n; i += sve_size) {
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SV_TYPE x_vec = svld1(SV_TRUE(), &x[i]);
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SV_TYPE y_vec = svld1(SV_TRUE(), &y[i]);
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y_vec = svmla_x(SV_TRUE(), y_vec, da_vec, x_vec);
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svst1(SV_TRUE(), &y[i], y_vec);
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}
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if (i < n) {
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svbool_t pg = SV_WHILE(i, n);
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SV_TYPE x_vec = svld1(pg, &x[i]);
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SV_TYPE y_vec = svld1(pg, &y[i]);
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y_vec = svmla_x(pg, y_vec, da_vec, x_vec);
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svst1(pg, &y[i], y_vec);
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}
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return (0);
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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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