641 lines
15 KiB
C
641 lines
15 KiB
C
/***************************************************************************
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Copyright (c) 2014, 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(__GNUC__) && __GNUC__ > 11)
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#pragma GCC optimize("no-tree-vectorize")
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#endif
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#if defined(BULLDOZER) || defined(PILEDRIVER) || defined(STEAMROLLER) || defined(EXCAVATOR)
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#include "sgemv_n_microk_bulldozer-4.c"
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#elif defined(NEHALEM)
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#include "sgemv_n_microk_nehalem-4.c"
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#elif defined(SANDYBRIDGE)
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#include "sgemv_n_microk_sandy-4.c"
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#elif defined(HASWELL) || defined(ZEN)
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#include "sgemv_n_microk_haswell-4.c"
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#elif defined (SKYLAKEX) || defined (COOPERLAKE) || defined (SAPPHIRERAPIDS)
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#include "sgemv_n_microk_haswell-4.c"
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#include "sgemv_n_microk_skylakex-8.c"
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#endif
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#if defined(STEAMROLLER) || defined(EXCAVATOR)
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#define NBMAX 2048
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#else
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#define NBMAX 4096
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#endif
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#ifndef HAVE_KERNEL_4x8
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static void sgemv_kernel_4x8(BLASLONG n, FLOAT **ap, FLOAT *xo, FLOAT *y, BLASLONG lda4, FLOAT *alpha)
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{
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BLASLONG i;
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FLOAT *a0,*a1,*a2,*a3;
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FLOAT *b0,*b1,*b2,*b3;
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FLOAT *x4;
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FLOAT x[8];
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a0 = ap[0];
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a1 = ap[1];
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a2 = ap[2];
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a3 = ap[3];
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b0 = a0 + lda4 ;
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b1 = a1 + lda4 ;
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b2 = a2 + lda4 ;
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b3 = a3 + lda4 ;
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x4 = x + 4;
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for ( i=0; i<8; i++)
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x[i] = xo[i] * *alpha;
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for ( i=0; i< n; i+=4 )
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{
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y[i] += a0[i]*x[0] + a1[i]*x[1] + a2[i]*x[2] + a3[i]*x[3];
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y[i+1] += a0[i+1]*x[0] + a1[i+1]*x[1] + a2[i+1]*x[2] + a3[i+1]*x[3];
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y[i+2] += a0[i+2]*x[0] + a1[i+2]*x[1] + a2[i+2]*x[2] + a3[i+2]*x[3];
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y[i+3] += a0[i+3]*x[0] + a1[i+3]*x[1] + a2[i+3]*x[2] + a3[i+3]*x[3];
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y[i] += b0[i]*x4[0] + b1[i]*x4[1] + b2[i]*x4[2] + b3[i]*x4[3];
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y[i+1] += b0[i+1]*x4[0] + b1[i+1]*x4[1] + b2[i+1]*x4[2] + b3[i+1]*x4[3];
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y[i+2] += b0[i+2]*x4[0] + b1[i+2]*x4[1] + b2[i+2]*x4[2] + b3[i+2]*x4[3];
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y[i+3] += b0[i+3]*x4[0] + b1[i+3]*x4[1] + b2[i+3]*x4[2] + b3[i+3]*x4[3];
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}
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}
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#endif
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#ifndef HAVE_KERNEL_4x4
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static void sgemv_kernel_4x4(BLASLONG n, FLOAT **ap, FLOAT *xo, FLOAT *y, FLOAT *alpha)
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{
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BLASLONG i;
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FLOAT *a0,*a1,*a2,*a3;
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FLOAT x[4];
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a0 = ap[0];
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a1 = ap[1];
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a2 = ap[2];
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a3 = ap[3];
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for ( i=0; i<4; i++)
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x[i] = xo[i] * *alpha;
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for ( i=0; i< n; i+=4 )
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{
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y[i] += a0[i]*x[0] + a1[i]*x[1] + a2[i]*x[2] + a3[i]*x[3];
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y[i+1] += a0[i+1]*x[0] + a1[i+1]*x[1] + a2[i+1]*x[2] + a3[i+1]*x[3];
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y[i+2] += a0[i+2]*x[0] + a1[i+2]*x[1] + a2[i+2]*x[2] + a3[i+2]*x[3];
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y[i+3] += a0[i+3]*x[0] + a1[i+3]*x[1] + a2[i+3]*x[2] + a3[i+3]*x[3];
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}
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}
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#endif
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#ifndef HAVE_SGEMV_N_SKYLAKE_KERNEL
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#ifndef HAVE_KERNEL_4x2
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static void sgemv_kernel_4x2( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));
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static void sgemv_kernel_4x2( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
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{
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BLASLONG register i = 0;
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__asm__ __volatile__
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(
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"movss (%2) , %%xmm12 \n\t" // x0
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"movss (%6) , %%xmm4 \n\t" // alpha
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"movss 4(%2) , %%xmm13 \n\t" // x1
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"mulss %%xmm4 , %%xmm12 \n\t" // alpha
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"mulss %%xmm4 , %%xmm13 \n\t" // alpha
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"shufps $0, %%xmm12, %%xmm12 \n\t"
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"shufps $0, %%xmm13, %%xmm13 \n\t"
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// ".align 16 \n\t"
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"1: \n\t"
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"movups (%3,%0,4), %%xmm4 \n\t" // 4 * y
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"movups (%4,%0,4), %%xmm8 \n\t"
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"movups (%5,%0,4), %%xmm9 \n\t"
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"mulps %%xmm12, %%xmm8 \n\t"
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"mulps %%xmm13, %%xmm9 \n\t"
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"addps %%xmm8 , %%xmm4 \n\t"
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"addq $4 , %0 \n\t"
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"addps %%xmm9 , %%xmm4 \n\t"
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"movups %%xmm4 , -16(%3,%0,4) \n\t" // 4 * y
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"subq $4 , %1 \n\t"
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"jnz 1b \n\t"
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:
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"+r" (i), // 0
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"+r" (n) // 1
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:
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"r" (x), // 2
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"r" (y), // 3
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"r" (ap[0]), // 4
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"r" (ap[1]), // 5
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"r" (alpha) // 6
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: "cc",
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"%xmm4", "%xmm5",
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"%xmm6", "%xmm7",
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"%xmm8", "%xmm9", "%xmm10", "%xmm11",
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"%xmm12", "%xmm13", "%xmm14", "%xmm15",
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"memory"
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);
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}
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#endif
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#endif
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#ifndef HAVE_KERNEL_4x1
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static void sgemv_kernel_4x1(BLASLONG n, FLOAT *ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));
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static void sgemv_kernel_4x1(BLASLONG n, FLOAT *ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
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{
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BLASLONG register i = 0;
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BLASLONG register n1 = n & -8 ;
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BLASLONG register n2 = n & 4 ;
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__asm__ __volatile__
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(
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"movss (%2), %%xmm12 \n\t" // x0
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"mulss (%6), %%xmm12 \n\t" // alpha
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"shufps $0, %%xmm12, %%xmm12 \n\t"
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"cmpq $0, %1 \n\t"
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"je 2f \n\t"
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// ".align 16 \n\t"
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"1: \n\t"
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"movups (%3,%0,4), %%xmm4 \n\t" // 4 * y
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"movups 16(%3,%0,4), %%xmm5 \n\t" // 4 * y
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"movups (%4,%0,4), %%xmm8 \n\t" // 4 * a
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"movups 16(%4,%0,4), %%xmm9 \n\t" // 4 * a
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"mulps %%xmm12, %%xmm8 \n\t"
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"mulps %%xmm12, %%xmm9 \n\t"
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"addps %%xmm4 , %%xmm8 \n\t"
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"addps %%xmm5 , %%xmm9 \n\t"
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"addq $8 , %0 \n\t"
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"movups %%xmm8 , -32(%3,%0,4) \n\t" // 4 * y
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"movups %%xmm9 , -16(%3,%0,4) \n\t" // 4 * y
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"subq $8 , %1 \n\t"
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"jnz 1b \n\t"
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"2: \n\t"
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"testq $0x04, %5 \n\t"
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"jz 3f \n\t"
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"movups (%3,%0,4), %%xmm4 \n\t" // 4 * y
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"movups (%4,%0,4), %%xmm8 \n\t" // 4 * a
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"mulps %%xmm12, %%xmm8 \n\t"
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"addps %%xmm8 , %%xmm4 \n\t"
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"movups %%xmm4 , (%3,%0,4) \n\t" // 4 * y
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"addq $4 , %0 \n\t"
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"subq $4 , %1 \n\t"
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"3: \n\t"
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:
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"+r" (i), // 0
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"+r" (n1) // 1
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:
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"r" (x), // 2
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"r" (y), // 3
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"r" (ap), // 4
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"r" (n2), // 5
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"r" (alpha) // 6
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: "cc",
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"%xmm4", "%xmm5",
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"%xmm6", "%xmm7",
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"%xmm8", "%xmm9", "%xmm10", "%xmm11",
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"%xmm12", "%xmm13", "%xmm14", "%xmm15",
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"memory"
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);
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}
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#endif
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static void add_y(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_dest) __attribute__ ((noinline));
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static void add_y(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_dest)
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{
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BLASLONG i;
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if ( inc_dest != 1 )
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{
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for ( i=0; i<n; i++ )
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{
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*dest += *src;
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src++;
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dest += inc_dest;
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}
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return;
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}
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i=0;
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__asm__ __volatile__
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(
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// ".align 16 \n\t"
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"1: \n\t"
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"movups (%2,%0,4) , %%xmm12 \n\t"
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"movups (%3,%0,4) , %%xmm11 \n\t"
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"addps %%xmm12 , %%xmm11 \n\t"
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"addq $4 , %0 \n\t"
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"movups %%xmm11, -16(%3,%0,4) \n\t"
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"subq $4 , %1 \n\t"
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"jnz 1b \n\t"
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:
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"+r" (i), // 0
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"+r" (n) // 1
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:
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"r" (src), // 2
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"r" (dest) // 3
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: "cc",
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"%xmm10", "%xmm11", "%xmm12",
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"memory"
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);
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}
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int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *buffer)
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{
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if ( m < 1 || n < 1) return(0);
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#ifdef HAVE_SGEMV_N_SKYLAKE_KERNEL
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if (m <= 16384 && n <= 48 && !(n == 4))
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{
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FLOAT * xbuffer_align = x;
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FLOAT * ybuffer_align = y;
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if (inc_x != 1) {
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xbuffer_align = buffer;
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for(BLASLONG i=0; i<n; i++) {
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xbuffer_align[i] = x[i*inc_x];
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}
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}
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if (inc_y != 1) {
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ybuffer_align = buffer + n;
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for(BLASLONG i=0; i<m; i++) {
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ybuffer_align[i] = y[i*inc_y];
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}
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}
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sgemv_kernel_n_128(m, n , alpha, a, lda, xbuffer_align, ybuffer_align);
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if(inc_y != 1) {
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for(BLASLONG i=0; i<m; i++) {
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y[i*inc_y] = ybuffer_align[i];
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}
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}
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return(0);
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}
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#endif
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BLASLONG i;
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FLOAT *a_ptr;
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FLOAT *x_ptr;
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FLOAT *y_ptr;
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FLOAT *ap[4];
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BLASLONG n1;
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BLASLONG m1;
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BLASLONG m2;
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BLASLONG m3;
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BLASLONG n2;
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BLASLONG lda4 = lda << 2;
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BLASLONG lda8 = lda << 3;
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FLOAT xbuffer[8],*ybuffer;
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ybuffer = buffer;
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if ( inc_x == 1 )
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{
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n1 = n >> 3 ;
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n2 = n & 7 ;
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}
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else
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{
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n1 = n >> 2 ;
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n2 = n & 3 ;
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}
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m3 = m & 3 ;
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m1 = m & -4 ;
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m2 = (m & (NBMAX-1)) - m3 ;
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y_ptr = y;
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BLASLONG NB = NBMAX;
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while ( NB == NBMAX )
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{
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m1 -= NB;
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if ( m1 < 0)
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{
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if ( m2 == 0 ) break;
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NB = m2;
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}
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a_ptr = a;
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x_ptr = x;
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ap[0] = a_ptr;
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ap[1] = a_ptr + lda;
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ap[2] = ap[1] + lda;
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ap[3] = ap[2] + lda;
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if ( inc_y != 1 )
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memset(ybuffer,0,NB*4);
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else
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ybuffer = y_ptr;
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if ( inc_x == 1 )
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{
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for( i = 0; i < n1 ; i++)
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{
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sgemv_kernel_4x8(NB,ap,x_ptr,ybuffer,lda4,&alpha);
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ap[0] += lda8;
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ap[1] += lda8;
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ap[2] += lda8;
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ap[3] += lda8;
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a_ptr += lda8;
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x_ptr += 8;
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}
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if ( n2 & 4 )
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{
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sgemv_kernel_4x4(NB,ap,x_ptr,ybuffer,&alpha);
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ap[0] += lda4;
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ap[1] += lda4;
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ap[2] += lda4;
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ap[3] += lda4;
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a_ptr += lda4;
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x_ptr += 4;
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}
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if ( n2 & 2 )
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{
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#ifdef HAVE_SGEMV_N_SKYLAKE_KERNEL
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sgemv_kernel_n_64(NB, 2, alpha, a_ptr, lda, x_ptr, ybuffer);
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#else
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sgemv_kernel_4x2(NB,ap,x_ptr,ybuffer,&alpha);
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#endif
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a_ptr += lda*2;
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x_ptr += 2;
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}
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if ( n2 & 1 )
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{
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#ifdef HAVE_SGEMV_N_SKYLAKE_KERNEL
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sgemv_kernel_n_64(NB, 1, alpha, a_ptr, lda, x_ptr, ybuffer);
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#else
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sgemv_kernel_4x1(NB,a_ptr,x_ptr,ybuffer,&alpha);
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#endif
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/* a_ptr += lda;
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x_ptr += 1a; */
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}
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}
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else
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{
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for( i = 0; i < n1 ; i++)
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{
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xbuffer[0] = x_ptr[0];
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x_ptr += inc_x;
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xbuffer[1] = x_ptr[0];
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x_ptr += inc_x;
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xbuffer[2] = x_ptr[0];
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x_ptr += inc_x;
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xbuffer[3] = x_ptr[0];
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x_ptr += inc_x;
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sgemv_kernel_4x4(NB,ap,xbuffer,ybuffer,&alpha);
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ap[0] += lda4;
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ap[1] += lda4;
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ap[2] += lda4;
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ap[3] += lda4;
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a_ptr += lda4;
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}
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for( i = 0; i < n2 ; i++)
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{
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xbuffer[0] = x_ptr[0];
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x_ptr += inc_x;
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sgemv_kernel_4x1(NB,a_ptr,xbuffer,ybuffer,&alpha);
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a_ptr += lda;
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}
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}
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a += NB;
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if ( inc_y != 1 )
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{
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add_y(NB,ybuffer,y_ptr,inc_y);
|
|
y_ptr += NB * inc_y;
|
|
}
|
|
else
|
|
y_ptr += NB ;
|
|
|
|
}
|
|
|
|
if ( m3 == 0 ) return(0);
|
|
|
|
if ( m3 == 3 )
|
|
{
|
|
a_ptr = a;
|
|
x_ptr = x;
|
|
FLOAT temp0 = 0.0;
|
|
FLOAT temp1 = 0.0;
|
|
FLOAT temp2 = 0.0;
|
|
if ( lda == 3 && inc_x ==1 )
|
|
{
|
|
|
|
for( i = 0; i < ( n & -4 ); i+=4 )
|
|
{
|
|
|
|
temp0 += a_ptr[0] * x_ptr[0] + a_ptr[3] * x_ptr[1];
|
|
temp1 += a_ptr[1] * x_ptr[0] + a_ptr[4] * x_ptr[1];
|
|
temp2 += a_ptr[2] * x_ptr[0] + a_ptr[5] * x_ptr[1];
|
|
|
|
temp0 += a_ptr[6] * x_ptr[2] + a_ptr[9] * x_ptr[3];
|
|
temp1 += a_ptr[7] * x_ptr[2] + a_ptr[10] * x_ptr[3];
|
|
temp2 += a_ptr[8] * x_ptr[2] + a_ptr[11] * x_ptr[3];
|
|
|
|
a_ptr += 12;
|
|
x_ptr += 4;
|
|
}
|
|
|
|
for( ; i < n; i++ )
|
|
{
|
|
temp0 += a_ptr[0] * x_ptr[0];
|
|
temp1 += a_ptr[1] * x_ptr[0];
|
|
temp2 += a_ptr[2] * x_ptr[0];
|
|
a_ptr += 3;
|
|
x_ptr ++;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
|
|
for( i = 0; i < n; i++ )
|
|
{
|
|
temp0 += a_ptr[0] * x_ptr[0];
|
|
temp1 += a_ptr[1] * x_ptr[0];
|
|
temp2 += a_ptr[2] * x_ptr[0];
|
|
a_ptr += lda;
|
|
x_ptr += inc_x;
|
|
|
|
|
|
}
|
|
|
|
}
|
|
y_ptr[0] += alpha * temp0;
|
|
y_ptr += inc_y;
|
|
y_ptr[0] += alpha * temp1;
|
|
y_ptr += inc_y;
|
|
y_ptr[0] += alpha * temp2;
|
|
return(0);
|
|
}
|
|
|
|
|
|
if ( m3 == 2 )
|
|
{
|
|
a_ptr = a;
|
|
x_ptr = x;
|
|
FLOAT temp0 = 0.0;
|
|
FLOAT temp1 = 0.0;
|
|
if ( lda == 2 && inc_x ==1 )
|
|
{
|
|
|
|
for( i = 0; i < (n & -4) ; i+=4 )
|
|
{
|
|
temp0 += a_ptr[0] * x_ptr[0] + a_ptr[2] * x_ptr[1];
|
|
temp1 += a_ptr[1] * x_ptr[0] + a_ptr[3] * x_ptr[1];
|
|
temp0 += a_ptr[4] * x_ptr[2] + a_ptr[6] * x_ptr[3];
|
|
temp1 += a_ptr[5] * x_ptr[2] + a_ptr[7] * x_ptr[3];
|
|
a_ptr += 8;
|
|
x_ptr += 4;
|
|
|
|
}
|
|
|
|
|
|
for( ; i < n; i++ )
|
|
{
|
|
temp0 += a_ptr[0] * x_ptr[0];
|
|
temp1 += a_ptr[1] * x_ptr[0];
|
|
a_ptr += 2;
|
|
x_ptr ++;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
|
|
for( i = 0; i < n; i++ )
|
|
{
|
|
temp0 += a_ptr[0] * x_ptr[0];
|
|
temp1 += a_ptr[1] * x_ptr[0];
|
|
a_ptr += lda;
|
|
x_ptr += inc_x;
|
|
|
|
|
|
}
|
|
|
|
}
|
|
y_ptr[0] += alpha * temp0;
|
|
y_ptr += inc_y;
|
|
y_ptr[0] += alpha * temp1;
|
|
return(0);
|
|
}
|
|
|
|
if ( m3 == 1 )
|
|
{
|
|
a_ptr = a;
|
|
x_ptr = x;
|
|
FLOAT temp = 0.0;
|
|
if ( lda == 1 && inc_x ==1 )
|
|
{
|
|
|
|
for( i = 0; i < (n & -4); i+=4 )
|
|
{
|
|
temp += a_ptr[i] * x_ptr[i] + a_ptr[i+1] * x_ptr[i+1] + a_ptr[i+2] * x_ptr[i+2] + a_ptr[i+3] * x_ptr[i+3];
|
|
|
|
}
|
|
|
|
for( ; i < n; i++ )
|
|
{
|
|
temp += a_ptr[i] * x_ptr[i];
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
|
|
for( i = 0; i < n; i++ )
|
|
{
|
|
temp += a_ptr[0] * x_ptr[0];
|
|
a_ptr += lda;
|
|
x_ptr += inc_x;
|
|
}
|
|
|
|
}
|
|
y_ptr[0] += alpha * temp;
|
|
return(0);
|
|
}
|
|
|
|
|
|
return(0);
|
|
}
|
|
|
|
|