mirror of https://github.com/xianyi/OpenBLAS.git
261 lines
7.5 KiB
C
261 lines
7.5 KiB
C
/***************************************************************************
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Copyright (c) 2013, 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 VLSEV_FLOAT __riscv_vlse32_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 VLSEV_FLOAT __riscv_vlse64_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 *dx, BLASLONG incx, FLOAT *dy, BLASLONG incy, FLOAT *dparam)
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{
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BLASLONG i__1, i__2;
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BLASLONG kx, ky;
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FLOAT dh11, dh12, dh22, dh21, dflag;
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BLASLONG nsteps;
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--dparam;
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--dy;
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--dx;
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FLOAT_V_T v_w, v_z__, v_dx, v_dy;
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BLASLONG stride, stride_x, stride_y, offset;
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dflag = dparam[1];
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if (n <= 0 || dflag == - 2.0) goto L140;
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if (!(incx == incy && incx > 0)) goto L70;
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nsteps = n * incx;
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if (dflag < 0.) {
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goto L50;
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} else if (dflag == 0) {
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goto L10;
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} else {
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goto L30;
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}
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L10:
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dh12 = dparam[4];
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dh21 = dparam[3];
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i__1 = nsteps;
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i__2 = incx;
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if(i__2 < 0){
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offset = i__1 - 2;
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dx += offset;
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dy += offset;
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i__1 = -i__1;
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i__2 = -i__2;
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}
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stride = i__2 * sizeof(FLOAT);
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n = i__1 / i__2;
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for (size_t vl; n > 0; n -= vl, dx += vl*i__2, dy += vl*i__2) {
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vl = VSETVL(n);
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v_w = VLSEV_FLOAT(&dx[1], stride, vl);
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v_z__ = VLSEV_FLOAT(&dy[1], stride, vl);
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v_dx = VFMACCVF_FLOAT(v_w, dh12, v_z__, vl);
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v_dy = VFMACCVF_FLOAT(v_z__, dh21, v_w, vl);
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VSSEV_FLOAT(&dx[1], stride, v_dx, vl);
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VSSEV_FLOAT(&dy[1], stride, v_dy, vl);
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}
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goto L140;
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L30:
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dh11 = dparam[2];
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dh22 = dparam[5];
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i__2 = nsteps;
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i__1 = incx;
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if(i__1 < 0){
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offset = i__2 - 2;
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dx += offset;
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dy += offset;
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i__1 = -i__1;
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i__2 = -i__2;
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}
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stride = i__1 * sizeof(FLOAT);
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n = i__2 / i__1;
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for (size_t vl; n > 0; n -= vl, dx += vl*i__1, dy += vl*i__1) {
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vl = VSETVL(n);
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v_w = VLSEV_FLOAT(&dx[1], stride, vl);
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v_z__ = VLSEV_FLOAT(&dy[1], stride, vl);
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v_dx = VFMACCVF_FLOAT(v_z__, dh11, v_w, vl);
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v_dy = VFMSACVF_FLOAT(v_w, dh22, v_z__, vl);
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VSSEV_FLOAT(&dx[1], stride, v_dx, vl);
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VSSEV_FLOAT(&dy[1], stride, v_dy, vl);
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}
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goto L140;
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L50:
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dh11 = dparam[2];
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dh12 = dparam[4];
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dh21 = dparam[3];
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dh22 = dparam[5];
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i__1 = nsteps;
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i__2 = incx;
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if(i__2 < 0){
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offset = i__1 - 2;
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dx += offset;
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dy += offset;
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i__1 = -i__1;
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i__2 = -i__2;
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}
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stride = i__2 * sizeof(FLOAT);
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n = i__1 / i__2;
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for (size_t vl; n > 0; n -= vl, dx += vl*i__2, dy += vl*i__2) {
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vl = VSETVL(n);
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v_w = VLSEV_FLOAT(&dx[1], stride, vl);
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v_z__ = VLSEV_FLOAT(&dy[1], stride, vl);
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v_dx = VFMULVF_FLOAT(v_w, dh11, vl);
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v_dx = VFMACCVF_FLOAT(v_dx, dh12, v_z__, vl);
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VSSEV_FLOAT(&dx[1], stride, v_dx, vl);
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v_dy = VFMULVF_FLOAT(v_w, dh21, vl);
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v_dy = VFMACCVF_FLOAT(v_dy, dh22, v_z__, vl);
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VSSEV_FLOAT(&dy[1], stride, v_dy, vl);
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}
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goto L140;
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L70:
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kx = 1;
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ky = 1;
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if (incx < 0) {
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kx = (1 - n) * incx + 1;
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}
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if (incy < 0) {
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ky = (1 - n) * incy + 1;
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}
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if (dflag < 0.) {
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goto L120;
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} else if (dflag == 0) {
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goto L80;
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} else {
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goto L100;
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}
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L80:
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dh12 = dparam[4];
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dh21 = dparam[3];
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if(incx < 0){
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incx = -incx;
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dx -= n*incx;
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}
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if(incy < 0){
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incy = -incy;
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dy -= n*incy;
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}
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stride_x = incx * sizeof(FLOAT);
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stride_y = incy * sizeof(FLOAT);
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for (size_t vl; n > 0; n -= vl, dx += vl*incx, dy += vl*incy) {
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vl = VSETVL(n);
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v_w = VLSEV_FLOAT(&dx[kx], stride_x, vl);
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v_z__ = VLSEV_FLOAT(&dy[ky], stride_y, vl);
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v_dx = VFMACCVF_FLOAT(v_w, dh12, v_z__, vl);
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v_dy = VFMACCVF_FLOAT(v_z__, dh21, v_w, vl);
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VSSEV_FLOAT(&dx[kx], stride_x, v_dx, vl);
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VSSEV_FLOAT(&dy[ky], stride_y, v_dy, vl);
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}
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goto L140;
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L100:
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dh11 = dparam[2];
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dh22 = dparam[5];
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if(incx < 0){
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incx = -incx;
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dx -= n*incx;
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}
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if(incy < 0){
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incy = -incy;
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dy -= n*incy;
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}
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stride_x = incx * sizeof(FLOAT);
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stride_y = incy * sizeof(FLOAT);
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for (size_t vl; n > 0; n -= vl, dx += vl*incx, dy += vl*incy) {
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vl = VSETVL(n);
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v_w = VLSEV_FLOAT(&dx[kx], stride_x, vl);
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v_z__ = VLSEV_FLOAT(&dy[ky], stride_y, vl);
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v_dx = VFMACCVF_FLOAT(v_z__, dh11, v_w, vl);
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v_dy = VFMSACVF_FLOAT(v_w, dh22, v_z__, vl);
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VSSEV_FLOAT(&dx[kx], stride_x, v_dx, vl);
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VSSEV_FLOAT(&dy[ky], stride_y, v_dy, vl);
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}
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goto L140;
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L120:
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dh11 = dparam[2];
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dh12 = dparam[4];
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dh21 = dparam[3];
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dh22 = dparam[5];
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if(incx < 0){
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incx = -incx;
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dx -= n*incx;
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}
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if(incy < 0){
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incy = -incy;
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dy -= n*incy;
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}
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stride_x = incx * sizeof(FLOAT);
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stride_y = incy * sizeof(FLOAT);
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for (size_t vl; n > 0; n -= vl, dx += vl*incx, dy += vl*incy) {
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vl = VSETVL(n);
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v_w = VLSEV_FLOAT(&dx[kx], stride_x, vl);
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v_z__ = VLSEV_FLOAT(&dy[ky], stride_y, vl);
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v_dx = VFMULVF_FLOAT(v_w, dh11, vl);
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v_dx = VFMACCVF_FLOAT(v_dx, dh12, v_z__, vl);
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VSSEV_FLOAT(&dx[kx], stride_x, v_dx, vl);
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v_dy = VFMULVF_FLOAT(v_w, dh21, vl);
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v_dy = VFMACCVF_FLOAT(v_dy, dh22, v_z__, vl);
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VSSEV_FLOAT(&dy[ky], stride_y, v_dy, vl);
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}
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L140:
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return(0);
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}
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