mirror of https://github.com/xianyi/OpenBLAS.git
121 lines
4.7 KiB
C
121 lines
4.7 KiB
C
/***************************************************************************
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Copyright (c) 2025, 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
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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 COPYRIGHT OWNER 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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#include <arm_neon.h>
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static void symv_kernel_4x4(BLASLONG from, BLASLONG to, FLOAT *a0, FLOAT *a1, FLOAT *a2, FLOAT *a3,
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FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2)
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{
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#ifdef DOUBLE
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float64x2_t vtmpx0 = vld1q_dup_f64(&temp1[0]);
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float64x2_t vtmpx1 = vld1q_dup_f64(&temp1[1]);
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float64x2_t vtmpx2 = vld1q_dup_f64(&temp1[2]);
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float64x2_t vtmpx3 = vld1q_dup_f64(&temp1[3]);
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float64x2_t vtmpy0 = {0.0, 0.0};
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float64x2_t vtmpy1 = {0.0, 0.0};
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float64x2_t vtmpy2 = {0.0, 0.0};
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float64x2_t vtmpy3 = {0.0, 0.0};
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float64x2_t vxl, vxh, vyl, vyh;
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float64x2_t vap0l, vap0h, vap1l, vap1h, vap2l, vap2h, vap3l, vap3h;
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BLASLONG i;
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for (i = from; i < to; i+=4) {
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vyl = vld1q_f64(&y[i]);
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vyh = vld1q_f64(&y[i+2]);
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vxl = vld1q_f64(&x[i]);
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vxh = vld1q_f64(&x[i+2]);
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vap0l = vld1q_f64(&a0[i]);
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vap0h = vld1q_f64(&a0[i+2]);
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vap1l = vld1q_f64(&a1[i]);
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vap1h = vld1q_f64(&a1[i+2]);
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vap2l = vld1q_f64(&a2[i]);
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vap2h = vld1q_f64(&a2[i+2]);
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vap3l = vld1q_f64(&a3[i]);
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vap3h = vld1q_f64(&a3[i+2]);
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vyl = vfmaq_f64(vyl, vtmpx0, vap0l);
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vyh = vfmaq_f64(vyh, vtmpx0, vap0h);
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vyl = vfmaq_f64(vyl, vtmpx1, vap1l);
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vyh = vfmaq_f64(vyh, vtmpx1, vap1h);
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vyl = vfmaq_f64(vyl, vtmpx2, vap2l);
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vyh = vfmaq_f64(vyh, vtmpx2, vap2h);
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vyl = vfmaq_f64(vyl, vtmpx3, vap3l);
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vyh = vfmaq_f64(vyh, vtmpx3, vap3h);
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vtmpy0 = vfmaq_f64(vtmpy0, vxl, vap0l);
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vtmpy0 = vfmaq_f64(vtmpy0, vxh, vap0h);
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vtmpy1 = vfmaq_f64(vtmpy1, vxl, vap1l);
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vtmpy2 = vfmaq_f64(vtmpy2, vxl, vap2l);
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vtmpy1 = vfmaq_f64(vtmpy1, vxh, vap1h);
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vtmpy2 = vfmaq_f64(vtmpy2, vxh, vap2h);
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vtmpy3 = vfmaq_f64(vtmpy3, vxl, vap3l);
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vtmpy3 = vfmaq_f64(vtmpy3, vxh, vap3h);
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vst1q_f64(&y[i], vyl);
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vst1q_f64(&y[i+2], vyh);
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}
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temp2[0] += vaddvq_f64(vtmpy0);
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temp2[1] += vaddvq_f64(vtmpy1);
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temp2[2] += vaddvq_f64(vtmpy2);
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temp2[3] += vaddvq_f64(vtmpy3);
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#else
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float32x4_t vtmpx0 = vld1q_dup_f32(&temp1[0]);
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float32x4_t vtmpx1 = vld1q_dup_f32(&temp1[1]);
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float32x4_t vtmpx2 = vld1q_dup_f32(&temp1[2]);
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float32x4_t vtmpx3 = vld1q_dup_f32(&temp1[3]);
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float32x4_t vtmpy0 = {0.0, 0.0, 0.0, 0.0};
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float32x4_t vtmpy1 = {0.0, 0.0, 0.0, 0.0};
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float32x4_t vtmpy2 = {0.0, 0.0, 0.0, 0.0};
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float32x4_t vtmpy3 = {0.0, 0.0, 0.0, 0.0};
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float32x4_t vx, vy;
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float32x4_t vap0, vap1, vap2, vap3;
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BLASLONG i;
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for (i = from; i < to; i+=4) {
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vy = vld1q_f32(&y[i]);
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vx = vld1q_f32(&x[i]);
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vap0 = vld1q_f32(&a0[i]);
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vap1 = vld1q_f32(&a1[i]);
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vap2 = vld1q_f32(&a2[i]);
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vap3 = vld1q_f32(&a3[i]);
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vy = vfmaq_f32(vy, vtmpx0, vap0);
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vy = vfmaq_f32(vy, vtmpx1, vap1);
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vy = vfmaq_f32(vy, vtmpx2, vap2);
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vy = vfmaq_f32(vy, vtmpx3, vap3);
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vtmpy0 = vfmaq_f32(vtmpy0, vx, vap0);
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vtmpy1 = vfmaq_f32(vtmpy1, vx, vap1);
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vtmpy2 = vfmaq_f32(vtmpy2, vx, vap2);
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vtmpy3 = vfmaq_f32(vtmpy3, vx, vap3);
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vst1q_f32(&y[i], vy);
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}
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temp2[0] += vaddvq_f32(vtmpy0);
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temp2[1] += vaddvq_f32(vtmpy1);
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temp2[2] += vaddvq_f32(vtmpy2);
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temp2[3] += vaddvq_f32(vtmpy3);
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#endif
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}
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