113 lines
4.6 KiB
C
113 lines
4.6 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_e32m4(n)
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#define VSETVL_MAX __riscv_vsetvlmax_e32m4()
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#define FLOAT_V_T vfloat32m4_t
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#define FLOAT_VX2_T vfloat32m4x2_t
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#define VGET_VX2 __riscv_vget_v_f32m4x2_f32m4
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#define VSET_VX2 __riscv_vset_v_f32m4_f32m4x2
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#define VLSEG_FLOAT __riscv_vlseg2e32_v_f32m4x2
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#define VLSSEG_FLOAT __riscv_vlsseg2e32_v_f32m4x2
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#define VSSEG_FLOAT __riscv_vsseg2e32_v_f32m4x2
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#define VSSSEG_FLOAT __riscv_vssseg2e32_v_f32m4x2
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#define VFMACCVF_FLOAT __riscv_vfmacc_vf_f32m4
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#define VFMULVF_FLOAT __riscv_vfmul_vf_f32m4
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#define VFNMSACVF_FLOAT __riscv_vfnmsac_vf_f32m4
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#define VFMVVF_FLOAT __riscv_vfmv_v_f_f32m4
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#else
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#define VSETVL(n) __riscv_vsetvl_e64m4(n)
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#define VSETVL_MAX __riscv_vsetvlmax_e64m4()
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#define FLOAT_V_T vfloat64m4_t
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#define FLOAT_VX2_T vfloat64m4x2_t
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#define VGET_VX2 __riscv_vget_v_f64m4x2_f64m4
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#define VSET_VX2 __riscv_vset_v_f64m4_f64m4x2
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#define VLSEG_FLOAT __riscv_vlseg2e64_v_f64m4x2
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#define VLSSEG_FLOAT __riscv_vlsseg2e64_v_f64m4x2
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#define VSSEG_FLOAT __riscv_vsseg2e64_v_f64m4x2
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#define VSSSEG_FLOAT __riscv_vssseg2e64_v_f64m4x2
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#define VFMACCVF_FLOAT __riscv_vfmacc_vf_f64m4
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#define VFMULVF_FLOAT __riscv_vfmul_vf_f64m4
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#define VFNMSACVF_FLOAT __riscv_vfnmsac_vf_f64m4
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#define VFMVVF_FLOAT __riscv_vfmv_v_f_f64m4
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#endif
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r,FLOAT da_i, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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if((n <= 0) || (inc_x <= 0)) return(0);
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FLOAT_V_T vt, vr, vi;
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BLASLONG stride_x = inc_x * 2 * sizeof(FLOAT);
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size_t vlmax = VSETVL_MAX;
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FLOAT_VX2_T vx2;
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if(inc_x == 1) {
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for (size_t vl; n > 0; n -= vl, x += vl*2) {
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vl = VSETVL(n);
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vx2 = VLSEG_FLOAT(x, vl);
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vr = VGET_VX2(vx2, 0);
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vi = VGET_VX2(vx2, 1);
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vt = VFMULVF_FLOAT(vr, da_r, vl);
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vt = VFNMSACVF_FLOAT(vt, da_i, vi, vl);
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vi = VFMULVF_FLOAT(vi, da_r, vl);
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vi = VFMACCVF_FLOAT(vi, da_i, vr, vl);
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vx2 = VSET_VX2(vx2, 0, vt);
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vx2 = VSET_VX2(vx2, 1, vi);
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VSSEG_FLOAT(x, vx2, vl);
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}
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} else {
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for (size_t vl; n > 0; n -= vl, x += vl*inc_x*2) {
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vl = VSETVL(n);
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vx2 = VLSSEG_FLOAT(x, stride_x, vl);
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vr = VGET_VX2(vx2, 0);
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vi = VGET_VX2(vx2, 1);
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vt = VFMULVF_FLOAT(vr, da_r, vl);
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vt = VFNMSACVF_FLOAT(vt, da_i, vi, vl);
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vi = VFMULVF_FLOAT(vi, da_r, vl);
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vi = VFMACCVF_FLOAT(vi, da_i, vr, vl);
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vx2 = VSET_VX2(vx2, 0, vt);
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vx2 = VSET_VX2(vx2, 1, vi);
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VSSSEG_FLOAT(x, stride_x, vx2, vl);
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}
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}
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return(0);
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}
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