150 lines
5.5 KiB
C
150 lines
5.5 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_e32m1(n)
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#define FLOAT_VX2_T vfloat32m1x2_t
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#define FLOAT_VX4_T vfloat32m1x4_t
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#define FLOAT_VX8_T vfloat32m1x8_t
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#define VGET_VX2 __riscv_vget_v_f32m1x2_f32m1
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#define VSET_VX2 __riscv_vset_v_f32m1_f32m1x2
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#define VSET_VX4 __riscv_vset_v_f32m1_f32m1x4
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#define VSET_VX8 __riscv_vset_v_f32m1_f32m1x8
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#define VLSEG2_FLOAT __riscv_vlseg2e32_v_f32m1x2
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#define VSSEG2_FLOAT __riscv_vsseg2e32_v_f32m1x2
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#define VSSEG4_FLOAT __riscv_vsseg4e32_v_f32m1x4
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#define VSSEG8_FLOAT __riscv_vsseg8e32_v_f32m1x8
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#else
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#define VSETVL(n) __riscv_vsetvl_e64m1(n)
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#define FLOAT_VX2_T vfloat64m1x2_t
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#define FLOAT_VX4_T vfloat64m1x4_t
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#define FLOAT_VX8_T vfloat64m1x8_t
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#define VGET_VX2 __riscv_vget_v_f64m1x2_f64m1
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#define VSET_VX2 __riscv_vset_v_f64m1_f64m1x2
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#define VSET_VX4 __riscv_vset_v_f64m1_f64m1x4
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#define VSET_VX8 __riscv_vset_v_f64m1_f64m1x8
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#define VLSEG2_FLOAT __riscv_vlseg2e64_v_f64m1x2
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#define VSSEG2_FLOAT __riscv_vsseg2e64_v_f64m1x2
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#define VSSEG4_FLOAT __riscv_vsseg4e64_v_f64m1x4
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#define VSSEG8_FLOAT __riscv_vsseg8e64_v_f64m1x8
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#endif
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// Optimizes the implementation in ../generic/zgemm_ncopy_4.c
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int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, FLOAT *b){
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BLASLONG i, j;
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FLOAT *aoffset;
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FLOAT *aoffset1, *aoffset2, *aoffset3, *aoffset4;
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FLOAT *boffset;
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FLOAT_VX2_T v1x2, v2x2, v3x2, v4x2;
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FLOAT_VX4_T vxx4;
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FLOAT_VX8_T vxx8;
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size_t vl;
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aoffset = a;
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boffset = b;
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lda *= 2;
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for (j = (n >> 2); j > 0; j--) {
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aoffset1 = aoffset;
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aoffset2 = aoffset1 + lda;
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aoffset3 = aoffset2 + lda;
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aoffset4 = aoffset3 + lda;
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aoffset += 4 * lda;
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for (i = m; i > 0; i -= vl) {
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vl = VSETVL(i);
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v1x2 = VLSEG2_FLOAT(aoffset1, vl);
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v2x2 = VLSEG2_FLOAT(aoffset2, vl);
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v3x2 = VLSEG2_FLOAT(aoffset3, vl);
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v4x2 = VLSEG2_FLOAT(aoffset4, vl);
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vxx8 = VSET_VX8(vxx8, 0, VGET_VX2(v1x2, 0));
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vxx8 = VSET_VX8(vxx8, 1, VGET_VX2(v1x2, 1));
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vxx8 = VSET_VX8(vxx8, 2, VGET_VX2(v2x2, 0));
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vxx8 = VSET_VX8(vxx8, 3, VGET_VX2(v2x2, 1));
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vxx8 = VSET_VX8(vxx8, 4, VGET_VX2(v3x2, 0));
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vxx8 = VSET_VX8(vxx8, 5, VGET_VX2(v3x2, 1));
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vxx8 = VSET_VX8(vxx8, 6, VGET_VX2(v4x2, 0));
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vxx8 = VSET_VX8(vxx8, 7, VGET_VX2(v4x2, 1));
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VSSEG8_FLOAT(boffset, vxx8, vl);
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aoffset1 += vl * 2;
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aoffset2 += vl * 2;
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aoffset3 += vl * 2;
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aoffset4 += vl * 2;
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boffset += vl * 8;
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}
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}
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if (n & 2) {
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aoffset1 = aoffset;
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aoffset2 = aoffset1 + lda;
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aoffset += 2 * lda;
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for (i = m; i > 0; i -= vl) {
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vl = VSETVL(i);
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v1x2 = VLSEG2_FLOAT(aoffset1, vl);
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v2x2 = VLSEG2_FLOAT(aoffset2, vl);
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vxx4 = VSET_VX4(vxx4, 0, VGET_VX2(v1x2, 0));
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vxx4 = VSET_VX4(vxx4, 1, VGET_VX2(v1x2, 1));
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vxx4 = VSET_VX4(vxx4, 2, VGET_VX2(v2x2, 0));
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vxx4 = VSET_VX4(vxx4, 3, VGET_VX2(v2x2, 1));
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VSSEG4_FLOAT(boffset, vxx4, vl);
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aoffset1 += vl * 2;
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aoffset2 += vl * 2;
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boffset += vl * 4;
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}
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}
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if (n & 1) {
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aoffset1 = aoffset;
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aoffset += lda;
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for (i = m; i > 0; i -= vl) {
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vl = VSETVL(i);
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v1x2 = VLSEG2_FLOAT(aoffset1, vl);
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VSSEG2_FLOAT(boffset, v1x2, vl);
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aoffset1 += vl * 2;
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boffset += vl * 2;
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}
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}
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return 0;
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}
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