266 lines
8.8 KiB
C
266 lines
8.8 KiB
C
/*******************************************************************************
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Copyright (c) 2016, 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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#include "macros_msa.h"
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#if !defined(CONJ)
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#define OP0 +=
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#define OP1 -=
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#define OP2 +=
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#else
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#define OP0 -=
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#define OP1 +=
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#define OP2 -=
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#endif
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x,
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BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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BLASLONG i;
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FLOAT *py;
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v4f32 x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, y6, y7;
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v4f32 da_vec, zero_v = {0};
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if ((n < 0) || (da == 0.0)) return(0);
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py = y;
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if ((1 == inc_x) && (1 == inc_y))
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{
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FLOAT *x_pref, *y_pref;
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BLASLONG pref_offset;
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pref_offset = (BLASLONG)x & (L1_DATA_LINESIZE - 1);
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if (pref_offset > 0)
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{
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pref_offset = L1_DATA_LINESIZE - pref_offset;
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pref_offset = pref_offset / sizeof(FLOAT);
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}
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x_pref = x + pref_offset + 64;
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pref_offset = (BLASLONG)y & (L1_DATA_LINESIZE - 1);
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if (pref_offset > 0)
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{
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pref_offset = L1_DATA_LINESIZE - pref_offset;
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pref_offset = pref_offset / sizeof(FLOAT);
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}
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y_pref = y + pref_offset + 64;
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da_vec = COPY_FLOAT_TO_VECTOR(da);
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for (i = (n >> 5); i--;)
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{
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PREF_OFFSET(x_pref, 0);
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PREF_OFFSET(x_pref, 32);
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PREF_OFFSET(x_pref, 64);
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PREF_OFFSET(x_pref, 96);
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PREF_OFFSET(y_pref, 0);
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PREF_OFFSET(y_pref, 32);
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PREF_OFFSET(y_pref, 64);
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PREF_OFFSET(y_pref, 96);
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x_pref += 32;
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y_pref += 32;
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LD_SP8_INC(x, 4, x0, x1, x2, x3, x4, x5, x6, x7);
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LD_SP8_INC(py, 4, y0, y1, y2, y3, y4, y5, y6, y7);
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FMADD4(x0, x1, x2, x3, da_vec, y0, y1, y2, y3);
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FMADD4(x4, x5, x6, x7, da_vec, y4, y5, y6, y7);
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ST_SP8_INC(y0, y1, y2, y3, y4, y5, y6, y7, y, 4);
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}
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if (n & 31)
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{
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if (n & 16)
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{
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LD_SP4_INC(x, 4, x0, x1, x2, x3);
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LD_SP4_INC(py, 4, y0, y1, y2, y3);
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FMADD4(x0, x1, x2, x3, da_vec, y0, y1, y2, y3);
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ST_SP4_INC(y0, y1, y2, y3, y, 4);
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}
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if (n & 8)
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{
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LD_SP2_INC(x, 4, x0, x1);
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LD_SP2_INC(py, 4, y0, y1);
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FMADD2(x0, x1, da_vec, y0, y1);
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ST_SP2_INC(y0, y1, y, 4);
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}
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if (n & 4)
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{
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x0 = LD_SP(x); x += 4;
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y0 = LD_SP(py); py += 4;
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y0 += da_vec * x0;
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ST_SP(y0, y); y += 4;
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}
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if (n & 2)
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{
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FMADD2(x[0], x[1], da, y[0], y[1]);
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x += 2;
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y += 2;
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}
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if (n & 1)
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{
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y[0] += da * x[0];
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}
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}
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}
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else if (1 == inc_y)
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{
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da_vec = COPY_FLOAT_TO_VECTOR(da);
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for (i = (n >> 4); i--;)
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{
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x0 = (v4f32) __msa_insert_w((v4i32) zero_v, 0, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 1, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 2, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 3, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) zero_v, 0, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) x1, 1, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) x1, 2, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) x1, 3, *((int *) x));
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x += inc_x;
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x2 = (v4f32) __msa_insert_w((v4i32) zero_v, 0, *((int *) x));
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x += inc_x;
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x2 = (v4f32) __msa_insert_w((v4i32) x2, 1, *((int *) x));
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x += inc_x;
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x2 = (v4f32) __msa_insert_w((v4i32) x2, 2, *((int *) x));
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x += inc_x;
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x2 = (v4f32) __msa_insert_w((v4i32) x2, 3, *((int *) x));
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x += inc_x;
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x3 = (v4f32) __msa_insert_w((v4i32) zero_v, 0, *((int *) x));
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x += inc_x;
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x3 = (v4f32) __msa_insert_w((v4i32) x3, 1, *((int *) x));
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x += inc_x;
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x3 = (v4f32) __msa_insert_w((v4i32) x3, 2, *((int *) x));
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x += inc_x;
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x3 = (v4f32) __msa_insert_w((v4i32) x3, 3, *((int *) x));
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x += inc_x;
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LD_SP4_INC(py, 4, y0, y1, y2, y3);
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FMADD4(x0, x1, x2, x3, da_vec, y0, y1, y2, y3);
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ST_SP4_INC(y0, y1, y2, y3, y, 4);
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}
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if (n & 15)
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{
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if (n & 8)
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{
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x0 = (v4f32) __msa_insert_w((v4i32) zero_v, 0, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 1, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 2, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 3, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) zero_v, 0, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) x1, 1, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) x1, 2, *((int *) x));
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x += inc_x;
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x1 = (v4f32) __msa_insert_w((v4i32) x1, 3, *((int *) x));
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x += inc_x;
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LD_SP2_INC(py, 4, y0, y1);
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FMADD2(x0, x1, da_vec, y0, y1);
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ST_SP2_INC(y0, y1, y, 4);
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}
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if (n & 4)
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{
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x0 = (v4f32) __msa_insert_w((v4i32) zero_v, 0, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 1, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 2, *((int *) x));
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x += inc_x;
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x0 = (v4f32) __msa_insert_w((v4i32) x0, 3, *((int *) x));
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x += inc_x;
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y0 = LD_SP(py); py += 4;
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y0 += da_vec * x0;
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ST_SP(y0, y); y += 4;
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}
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if (n & 2)
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{
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FMADD2(x[0], x[inc_x], da, y[0], y[1]);
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x += 2 * inc_x;
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y += 2;
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}
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if (n & 1)
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{
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y[0] += da * x[0];
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}
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}
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}
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else
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{
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FLOAT x0, x1, x2, x3, y0, y1, y2, y3;
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for (i = (n >> 2); i--;)
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{
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LD_GP4_INC(x, inc_x, x0, x1, x2, x3);
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LD_GP4_INC(py, inc_y, y0, y1, y2, y3);
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FMADD4(x0, x1, x2, x3, da, y0, y1, y2, y3);
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ST_GP4_INC(y0, y1, y2, y3, y, inc_y);
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}
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if (n & 3)
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{
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if (n & 2)
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{
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LD_GP2_INC(x, inc_x, x0, x1);
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LD_GP2_INC(py, inc_y, y0, y1);
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FMADD2(x0, x1, da, y0, y1);
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ST_GP2_INC(y0, y1, y, inc_y);
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}
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if (n & 1)
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{
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*y += da * *x;
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}
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}
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}
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return (0);
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}
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