mirror of https://github.com/xianyi/OpenBLAS.git
90 lines
3.3 KiB
C
90 lines
3.3 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 "common.h"
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#include <arm_sve.h>
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#ifdef DOUBLE
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#define SV_COUNT svcntd
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#define SV_TYPE svfloat64_t
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#define SV_TRUE svptrue_b64
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#define SV_WHILE svwhilelt_b64_s64
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#define SV_DUP svdup_f64
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#else
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#define SV_COUNT svcntw
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#define SV_TYPE svfloat32_t
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#define SV_TRUE svptrue_b32
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#define SV_WHILE svwhilelt_b32_s64
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#define SV_DUP svdup_f32
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#endif
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static void symv_kernel_v1x4(BLASLONG from, BLASLONG to, FLOAT *a0, FLOAT *a1, FLOAT *a2, FLOAT *a3,
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FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2)
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{
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SV_TYPE vtmpx0 = SV_DUP(temp1[0]);
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SV_TYPE vtmpx1 = SV_DUP(temp1[1]);
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SV_TYPE vtmpx2 = SV_DUP(temp1[2]);
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SV_TYPE vtmpx3 = SV_DUP(temp1[3]);
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SV_TYPE vtmpy0 = SV_DUP(0.0);
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SV_TYPE vtmpy1 = SV_DUP(0.0);
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SV_TYPE vtmpy2 = SV_DUP(0.0);
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SV_TYPE vtmpy3 = SV_DUP(0.0);
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SV_TYPE vx, vy;
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SV_TYPE vap0, vap1, vap2, vap3;
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BLASLONG i;
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uint64_t sve_size = SV_COUNT();
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svbool_t pg;
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for (i = from; i < to; i += sve_size) {
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pg = SV_WHILE(i, to);
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vy = svld1(pg, &y[i]);
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vx = svld1(pg, &x[i]);
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vap0 = svld1(pg, &a0[i]);
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vap1 = svld1(pg, &a1[i]);
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vap2 = svld1(pg, &a2[i]);
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vap3 = svld1(pg, &a3[i]);
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vy = svmla_m(pg, vy, vtmpx0, vap0);
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vy = svmla_m(pg, vy, vtmpx1, vap1);
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vy = svmla_m(pg, vy, vtmpx2, vap2);
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vy = svmla_m(pg, vy, vtmpx3, vap3);
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vtmpy0 = svmla_m(pg, vtmpy0, vx, vap0);
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vtmpy1 = svmla_m(pg, vtmpy1, vx, vap1);
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vtmpy2 = svmla_m(pg, vtmpy2, vx, vap2);
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vtmpy3 = svmla_m(pg, vtmpy3, vx, vap3);
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svst1(pg, &y[i], vy);
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}
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pg = SV_TRUE();
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temp2[0] += svaddv(pg, vtmpy0);
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temp2[1] += svaddv(pg, vtmpy1);
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temp2[2] += svaddv(pg, vtmpy2);
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temp2[3] += svaddv(pg, vtmpy3);
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}
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