150 lines
5.2 KiB
C
150 lines
5.2 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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#define VFMULVF_FLOAT __riscv_vfmul_vf_f32m8
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#define VFMSACVF_FLOAT __riscv_vfmsac_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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#define VFMULVF_FLOAT __riscv_vfmul_vf_f64m8
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#define VFMSACVF_FLOAT __riscv_vfmsac_vf_f64m8
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#endif
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int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT c, FLOAT s)
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{
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if(n <= 0) return(0);
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FLOAT_V_T v0, v1, vx, vy;
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if (inc_x == 0 || inc_y == 0) {
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BLASLONG i=0;
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BLASLONG ix=0,iy=0;
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FLOAT temp;
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while(i < n)
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{
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temp = c*x[ix] + s*y[iy] ;
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y[iy] = c*y[iy] - s*x[ix] ;
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x[ix] = temp ;
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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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}
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else if(inc_x == 1 && inc_y == 1) {
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for (size_t vl; n > 0; n -= vl, x += vl, y += vl) {
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vl = VSETVL(n);
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vx = VLEV_FLOAT(x, vl);
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vy = VLEV_FLOAT(y, vl);
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v0 = VFMULVF_FLOAT(vx, c, vl);
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v0 = VFMACCVF_FLOAT(v0, s, vy, vl);
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VSEV_FLOAT(x, v0, vl);
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v1 = VFMULVF_FLOAT(vx, s, vl);
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v1 = VFMSACVF_FLOAT(v1, c, vy, vl);
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VSEV_FLOAT(y, v1, vl);
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}
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} else if(inc_y == 1) {
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BLASLONG stride_x = inc_x * sizeof(FLOAT);
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for (size_t vl; n > 0; n -= vl, x += vl*inc_x, y += vl) {
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vl = VSETVL(n);
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vx = VLSEV_FLOAT(x, stride_x, vl);
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vy = VLEV_FLOAT(y, vl);
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v0 = VFMULVF_FLOAT(vx, c, vl);
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v0 = VFMACCVF_FLOAT(v0, s, vy, vl);
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VSSEV_FLOAT(x, stride_x, v0, vl);
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v1 = VFMULVF_FLOAT(vx, s, vl);
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v1 = VFMSACVF_FLOAT(v1, c, vy, vl);
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VSEV_FLOAT(y, v1, vl);
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}
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} else if(inc_x == 1) {
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BLASLONG stride_y = inc_y * sizeof(FLOAT);
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for (size_t vl; n > 0; n -= vl, x += vl, y += vl*inc_y) {
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vl = VSETVL(n);
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vx = VLEV_FLOAT(x, vl);
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vy = VLSEV_FLOAT(y, stride_y, vl);
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v0 = VFMULVF_FLOAT(vx, c, vl);
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v0 = VFMACCVF_FLOAT(v0, s, vy, vl);
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VSEV_FLOAT(x, v0, vl);
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v1 = VFMULVF_FLOAT(vx, s, vl);
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v1 = VFMSACVF_FLOAT(v1, c, vy, vl);
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VSSEV_FLOAT(y, stride_y, v1, vl);
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}
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} else {
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BLASLONG stride_x = inc_x * sizeof(FLOAT);
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BLASLONG stride_y = inc_y * sizeof(FLOAT);
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for (size_t vl; n > 0; n -= vl, x += vl*inc_x, y += vl*inc_y) {
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vl = VSETVL(n);
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vx = VLSEV_FLOAT(x, stride_x, vl);
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vy = VLSEV_FLOAT(y, stride_y, vl);
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v0 = VFMULVF_FLOAT(vx, c, vl);
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v0 = VFMACCVF_FLOAT(v0, s, vy, vl);
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VSSEV_FLOAT(x, stride_x, v0, vl);
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v1 = VFMULVF_FLOAT(vx, s, vl);
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v1 = VFMSACVF_FLOAT(v1, c, vy, vl);
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VSSEV_FLOAT(y, stride_y, v1, vl);
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}
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}
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return(0);
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}
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