95 lines
3.6 KiB
C
95 lines
3.6 KiB
C
/***************************************************************************
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Copyright (c) 2022, 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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#if !defined(DOUBLE)
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#define VSETVL(n) __riscv_vsetvl_e32m8(n)
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#define FLOAT_V_T vfloat32m8_t
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#define VLEV_FLOAT __riscv_vle32_v_f32m8
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#define VLSEV_FLOAT __riscv_vlse32_v_f32m8
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#define VSEV_FLOAT __riscv_vse32_v_f32m8
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#define VSSEV_FLOAT __riscv_vsse32_v_f32m8
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#define VFMACCVF_FLOAT __riscv_vfmacc_vf_f32m8
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#else
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#define VSETVL(n) __riscv_vsetvl_e64m8(n)
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#define FLOAT_V_T vfloat64m8_t
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#define VLEV_FLOAT __riscv_vle64_v_f64m8
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#define VLSEV_FLOAT __riscv_vlse64_v_f64m8
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#define VSEV_FLOAT __riscv_vse64_v_f64m8
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#define VSSEV_FLOAT __riscv_vsse64_v_f64m8
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#define VFMACCVF_FLOAT __riscv_vfmacc_vf_f64m8
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#endif
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int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *buffer)
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{
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if(n < 0) return(0);
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FLOAT *a_ptr, *x_ptr;
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BLASLONG i;
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FLOAT_V_T va, vy;
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if(inc_y == 1) {
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for (size_t vl; m > 0; m -= vl, y += vl, a += vl) {
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vl = VSETVL(m);
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a_ptr = a;
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x_ptr = x;
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vy = VLEV_FLOAT(y, vl);
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for(i = 0; i < n; i++) {
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va = VLEV_FLOAT(a_ptr, vl);
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vy = VFMACCVF_FLOAT(vy, (alpha * (*x_ptr)), va, vl);
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a_ptr += lda;
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x_ptr += inc_x;
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}
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VSEV_FLOAT(y, vy, vl);
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}
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} else {
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BLASLONG stride_y = inc_y * sizeof(FLOAT);
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for (size_t vl; m > 0; m -= vl, y += vl*inc_y, a += vl) {
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vl = VSETVL(m);
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a_ptr = a;
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x_ptr = x;
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vy = VLSEV_FLOAT(y, stride_y, vl);
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for(i = 0; i < n; i++) {
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va = VLEV_FLOAT(a_ptr, vl);
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vy = VFMACCVF_FLOAT(vy, (alpha * (*x_ptr)), va, vl);
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a_ptr += lda;
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x_ptr += inc_x;
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}
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VSSEV_FLOAT(y, stride_y, vy, vl);
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}
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}
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return(0);
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}
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