122 lines
4.1 KiB
C
122 lines
4.1 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 <stdio.h>
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#include "common.h"
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#if !defined(DOUBLE)
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#define VSETVL(n) __riscv_vsetvl_e32m2(n)
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#define FLOAT_V_T vfloat32m2_t
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#define VLEV_FLOAT __riscv_vle32_v_f32m2
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#define VSEV_FLOAT __riscv_vse32_v_f32m2
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#define VSEV_FLOAT_M __riscv_vse32_v_f32m2_m
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#define VLSEV_FLOAT __riscv_vlse32_v_f32m2
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#define VBOOL_T vbool16_t
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#define UINT_V_T vuint32m2_t
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#define VID_V_UINT __riscv_vid_v_u32m2
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#define VMSGTU_VX_UINT __riscv_vmsgtu_vx_u32m2_b16
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#else
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#define VSETVL(n) __riscv_vsetvl_e64m2(n)
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#define FLOAT_V_T vfloat64m2_t
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#define VLEV_FLOAT __riscv_vle64_v_f64m2
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#define VSEV_FLOAT __riscv_vse64_v_f64m2
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#define VSEV_FLOAT_M __riscv_vse64_v_f64m2_m
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#define VLSEV_FLOAT __riscv_vlse64_v_f64m2
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#define VBOOL_T vbool32_t
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#define UINT_V_T vuint64m2_t
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#define VID_V_UINT __riscv_vid_v_u64m2
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#define VMSGTU_VX_UINT __riscv_vmsgtu_vx_u64m2_b32
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#endif
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#ifndef UNIT
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#define INV(a) (ONE / (a))
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#else
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#define INV(a) (ONE)
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#endif
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// Optimizes the implementation in ../arm64/trsm_uncopy_sve.c
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int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, BLASLONG offset, FLOAT *b){
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BLASLONG i, ii, jj, js;
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BLASLONG stride_lda = sizeof(FLOAT)*lda;
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FLOAT *ao;
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jj = offset;
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FLOAT_V_T va1;
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VBOOL_T vbool_cmp;
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UINT_V_T vindex;
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size_t vl;
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for (js = n; js > 0; js -= vl)
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{
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vl = VSETVL(js);
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ao = a;
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i = 0;
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ii = 0;
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for (i = 0; i < m;)
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{
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if (ii == jj)
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{
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vindex = VID_V_UINT(vl);
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for (unsigned int j = 0; j < vl; j++)
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{
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*(b + j) = INV(*(ao + j * lda));
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va1 = VLSEV_FLOAT(ao, stride_lda, vl);
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vbool_cmp = VMSGTU_VX_UINT(vindex, j, vl);
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VSEV_FLOAT_M(vbool_cmp, b, va1, vl);
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ao++;
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b += vl;
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}
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i += vl;
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ii += vl;
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}
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else
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{
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if (ii < jj)
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{
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va1 = VLSEV_FLOAT(ao, stride_lda, vl);
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VSEV_FLOAT(b, va1, vl);
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}
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ao++;
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b += vl;
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i++;
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ii++;
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}
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}
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a += vl * lda;
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jj += vl;
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}
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return 0;
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}
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