added blocked sgemv_n and microkernel for bulldozer and piledriver
This commit is contained in:
wernsaar
parent
7ceb25d7b3
commit
3c5732615d
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@ -1,3 +1,4 @@
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SGEMVNKERNEL = sgemv_n_avx.c
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ZGEMVNKERNEL = zgemv_n_dup.S
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ZGEMVNKERNEL = zgemv_n_dup.S
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ZGEMVTKERNEL = zgemv_t.S
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ZGEMVTKERNEL = zgemv_t.S
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@ -1,3 +1,4 @@
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SGEMVNKERNEL = sgemv_n_avx.c
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ZGEMVNKERNEL = zgemv_n_dup.S
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ZGEMVNKERNEL = zgemv_n_dup.S
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ZGEMVTKERNEL = zgemv_t.S
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ZGEMVTKERNEL = zgemv_t.S
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@ -0,0 +1,194 @@
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/***************************************************************************
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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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||||||
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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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||||||
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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||||||
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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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||||||
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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||||||
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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||||||
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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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||||||
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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||||||
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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(BULLDOZER) || defined(PILEDRIVER)
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#include "sgemv_n_microk_bulldozer.c"
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#endif
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static void copy_x(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_src)
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{
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BLASLONG i;
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for ( i=0; i<n; i++ )
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{
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*dest = *src;
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dest++;
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src += inc_src;
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}
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}
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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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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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}
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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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BLASLONG i;
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BLASLONG j;
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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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BLASLONG n1,n2;
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BLASLONG m1,m2;
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FLOAT *xbuffer,*ybuffer;
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xbuffer = buffer;
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ybuffer = xbuffer + 2048 + 256;
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n1 = n / 512 ;
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n2 = n % 512 ;
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m1 = m / 32;
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m2 = m % 32;
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x_ptr = x;
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a_ptr = a;
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y_ptr = y;
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for (j=0; j<n1; j++)
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{
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if ( inc_x == 1 )
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xbuffer = x_ptr;
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else
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copy_x(512,x_ptr,xbuffer,inc_x);
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x_ptr += 512 * inc_x;
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a_ptr += j * 512;
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y_ptr = y;
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for(i = 0; i<m1; i++ )
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{
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sgemv_kernel_32(512,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(32,ybuffer,y_ptr,inc_y);
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y_ptr += 32 * inc_y;
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a_ptr += 32;
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}
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if ( m2 & 16 )
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{
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sgemv_kernel_16(512,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(16,ybuffer,y_ptr,inc_y);
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y_ptr += 16 * inc_y;
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a_ptr += 16;
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}
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if ( m2 & 8 )
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{
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sgemv_kernel_8(512,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(8,ybuffer,y_ptr,inc_y);
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y_ptr += 8 * inc_y;
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a_ptr += 8;
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}
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if ( m2 & 4 )
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{
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sgemv_kernel_4(512,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(4,ybuffer,y_ptr,inc_y);
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y_ptr += 4 * inc_y;
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a_ptr += 4;
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}
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if ( m2 & 2 )
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{
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sgemv_kernel_2(512,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(2,ybuffer,y_ptr,inc_y);
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y_ptr += 2 * inc_y;
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a_ptr += 2;
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}
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if ( m2 & 1 )
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{
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sgemv_kernel_1(512,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(1,ybuffer,y_ptr,inc_y);
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}
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}
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if ( n2 > 0 )
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{
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if ( inc_x == 1 )
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xbuffer = x_ptr;
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else
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copy_x(n2,x_ptr,xbuffer,inc_x);
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y_ptr = y;
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for(i = 0; i<m1; i++ )
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{
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sgemv_kernel_32(n2,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(32,ybuffer,y_ptr,inc_y);
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y_ptr += 32 * inc_y;
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a_ptr += 32;
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}
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if ( m2 & 16 )
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{
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sgemv_kernel_16(n2,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(16,ybuffer,y_ptr,inc_y);
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y_ptr += 16 * inc_y;
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a_ptr += 16;
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}
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if ( m2 & 8 )
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{
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sgemv_kernel_8(n2,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(8,ybuffer,y_ptr,inc_y);
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y_ptr += 8 * inc_y;
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a_ptr += 8;
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}
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if ( m2 & 4 )
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{
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sgemv_kernel_4(n2,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(4,ybuffer,y_ptr,inc_y);
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y_ptr += 4 * inc_y;
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a_ptr += 4;
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}
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if ( m2 & 2 )
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{
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sgemv_kernel_2(n2,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(2,ybuffer,y_ptr,inc_y);
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y_ptr += 2 * inc_y;
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a_ptr += 2;
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}
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if ( m2 & 1 )
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{
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sgemv_kernel_1(n2,alpha,a_ptr,lda,xbuffer,ybuffer);
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add_y(1,ybuffer,y_ptr,inc_y);
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}
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}
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return(0);
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}
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@ -0,0 +1,346 @@
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/***************************************************************************
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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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||||||
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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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||||||
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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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||||||
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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||||||
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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||||||
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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||||||
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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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static void sgemv_kernel_32( long n, float alpha, float *a, long lda, float *x, float *y)
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{
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float *pre = a + lda*4*2;
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__asm __volatile
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(
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"movq %0, %%rax\n\t" // n -> rax
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"vbroadcastss %1, %%ymm1\n\t" // alpha -> ymm1
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"movq %2, %%rsi\n\t" // adress of a -> rsi
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"movq %3, %%rcx\n\t" // value of lda > rcx
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"movq %4, %%rdi\n\t" // adress of x -> rdi
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"movq %5, %%rdx\n\t" // adress of y -> rdx
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"movq %6, %%r8\n\t" // address for prefetch
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"prefetcht0 (%%r8)\n\t" // Prefetch
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"prefetcht0 64(%%r8)\n\t" // Prefetch
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"vxorps %%ymm12, %%ymm12, %%ymm12\n\t" // set to zero
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"vxorps %%ymm13, %%ymm13, %%ymm13\n\t" // set to zero
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"vxorps %%ymm14, %%ymm14, %%ymm14\n\t" // set to zero
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"vxorps %%ymm15, %%ymm15, %%ymm15\n\t" // set to zero
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".L01LOOP%=: \n\t"
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"vbroadcastss (%%rdi), %%ymm0 \n\t" // load values of c
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"addq $4 , %%rdi \n\t" // increment pointer of c
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"leaq (%%r8 , %%rcx, 4), %%r8 \n\t" // add lda to pointer for prefetch
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"prefetcht0 (%%r8)\n\t" // Prefetch
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"prefetcht0 64(%%r8)\n\t" // Prefetch
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"vfmaddps %%ymm12, 0*4(%%rsi), %%ymm0, %%ymm12\n\t" // multiply a and c and add to temp
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"vfmaddps %%ymm13, 8*4(%%rsi), %%ymm0, %%ymm13\n\t" // multiply a and c and add to temp
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"vfmaddps %%ymm14, 16*4(%%rsi), %%ymm0, %%ymm14\n\t" // multiply a and c and add to temp
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"vfmaddps %%ymm15, 24*4(%%rsi), %%ymm0, %%ymm15\n\t" // multiply a and c and add to temp
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"leaq (%%rsi, %%rcx, 4), %%rsi \n\t" // add lda to pointer of a
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"dec %%rax \n\t" // n = n -1
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"jnz .L01LOOP%= \n\t"
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"vmulps %%ymm12, %%ymm1, %%ymm12\n\t" // scale by alpha
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"vmulps %%ymm13, %%ymm1, %%ymm13\n\t" // scale by alpha
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"vmulps %%ymm14, %%ymm1, %%ymm14\n\t" // scale by alpha
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"vmulps %%ymm15, %%ymm1, %%ymm15\n\t" // scale by alpha
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"vmovups %%ymm12, (%%rdx) \n\t" // store temp -> y
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"vmovups %%ymm13, 8*4(%%rdx) \n\t" // store temp -> y
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"vmovups %%ymm14, 16*4(%%rdx) \n\t" // store temp -> y
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"vmovups %%ymm15, 24*4(%%rdx) \n\t" // store temp -> y
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:
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:
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"m" (n), // 0
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"m" (alpha), // 1
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"m" (a), // 2
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"m" (lda), // 3
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"m" (x), // 4
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"m" (y), // 5
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"m" (pre) // 6
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: "rax", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11",
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"xmm0" , "xmm1",
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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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static void sgemv_kernel_16( long n, float alpha, float *a, long lda, float *x, float *y)
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{
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float *pre = a + lda*4*3;
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__asm __volatile
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(
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"movq %0, %%rax\n\t" // n -> rax
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"vbroadcastss %1, %%ymm1\n\t" // alpha -> ymm1
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"movq %2, %%rsi\n\t" // adress of a -> rsi
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"movq %3, %%rcx\n\t" // value of lda > rcx
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"movq %4, %%rdi\n\t" // adress of x -> rdi
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"movq %5, %%rdx\n\t" // adress of y -> rdx
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||||||
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"movq %6, %%r8\n\t" // address for prefetch
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"prefetcht0 (%%r8)\n\t" // Prefetch
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|
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"vxorps %%ymm12, %%ymm12, %%ymm12\n\t" // set to zero
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"vxorps %%ymm13, %%ymm13, %%ymm13\n\t" // set to zero
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".L01LOOP%=: \n\t"
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"vbroadcastss (%%rdi), %%ymm0 \n\t" // load values of c
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"addq $4 , %%rdi \n\t" // increment pointer of c
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"leaq (%%r8 , %%rcx, 4), %%r8 \n\t" // add lda to pointer for prefetch
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"prefetcht0 (%%r8)\n\t" // Prefetch
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"vfmaddps %%ymm12, 0*4(%%rsi), %%ymm0, %%ymm12\n\t" // multiply a and c and add to temp
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"vfmaddps %%ymm13, 8*4(%%rsi), %%ymm0, %%ymm13\n\t" // multiply a and c and add to temp
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"leaq (%%rsi, %%rcx, 4), %%rsi \n\t" // add lda to pointer of a
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"dec %%rax \n\t" // n = n -1
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"jnz .L01LOOP%= \n\t"
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"vmulps %%ymm12, %%ymm1, %%ymm12\n\t" // scale by alpha
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"vmulps %%ymm13, %%ymm1, %%ymm13\n\t" // scale by alpha
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"vmovups %%ymm12, (%%rdx) \n\t" // store temp -> y
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"vmovups %%ymm13, 8*4(%%rdx) \n\t" // store temp -> y
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:
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:
|
||||||
|
"m" (n), // 0
|
||||||
|
"m" (alpha), // 1
|
||||||
|
"m" (a), // 2
|
||||||
|
"m" (lda), // 3
|
||||||
|
"m" (x), // 4
|
||||||
|
"m" (y), // 5
|
||||||
|
"m" (pre) // 6
|
||||||
|
: "rax", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11",
|
||||||
|
"xmm0" , "xmm1",
|
||||||
|
"xmm12", "xmm13", "xmm14", "xmm15",
|
||||||
|
"memory"
|
||||||
|
);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void sgemv_kernel_8( long n, float alpha, float *a, long lda, float *x, float *y)
|
||||||
|
{
|
||||||
|
|
||||||
|
|
||||||
|
__asm __volatile
|
||||||
|
(
|
||||||
|
"movq %0, %%rax\n\t" // n -> rax
|
||||||
|
"vbroadcastss %1, %%ymm1\n\t" // alpha -> ymm1
|
||||||
|
"movq %2, %%rsi\n\t" // adress of a -> rsi
|
||||||
|
"movq %3, %%rcx\n\t" // value of lda > rcx
|
||||||
|
"movq %4, %%rdi\n\t" // adress of x -> rdi
|
||||||
|
"movq %5, %%rdx\n\t" // adress of y -> rdx
|
||||||
|
|
||||||
|
"vxorps %%ymm12, %%ymm12, %%ymm12\n\t" // set to zero
|
||||||
|
|
||||||
|
".L01LOOP%=: \n\t"
|
||||||
|
"vbroadcastss (%%rdi), %%ymm0 \n\t" // load values of c
|
||||||
|
"addq $4 , %%rdi \n\t" // increment pointer of c
|
||||||
|
|
||||||
|
"vfmaddps %%ymm12, 0*4(%%rsi), %%ymm0, %%ymm12\n\t" // multiply a and c and add to temp
|
||||||
|
|
||||||
|
"leaq (%%rsi, %%rcx, 4), %%rsi \n\t" // add lda to pointer of a
|
||||||
|
|
||||||
|
"dec %%rax \n\t" // n = n -1
|
||||||
|
"jnz .L01LOOP%= \n\t"
|
||||||
|
|
||||||
|
"vmulps %%ymm12, %%ymm1, %%ymm12\n\t" // scale by alpha
|
||||||
|
|
||||||
|
"vmovups %%ymm12, (%%rdx) \n\t" // store temp -> y
|
||||||
|
|
||||||
|
:
|
||||||
|
:
|
||||||
|
"m" (n), // 0
|
||||||
|
"m" (alpha), // 1
|
||||||
|
"m" (a), // 2
|
||||||
|
"m" (lda), // 3
|
||||||
|
"m" (x), // 4
|
||||||
|
"m" (y) // 5
|
||||||
|
: "rax", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11",
|
||||||
|
"xmm0" , "xmm1",
|
||||||
|
"xmm12", "xmm13", "xmm14", "xmm15",
|
||||||
|
"memory"
|
||||||
|
);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void sgemv_kernel_4( long n, float alpha, float *a, long lda, float *x, float *y)
|
||||||
|
{
|
||||||
|
|
||||||
|
|
||||||
|
__asm __volatile
|
||||||
|
(
|
||||||
|
"movq %0, %%rax\n\t" // n -> rax
|
||||||
|
"vbroadcastss %1, %%xmm1\n\t" // alpha -> xmm1
|
||||||
|
"movq %2, %%rsi\n\t" // adress of a -> rsi
|
||||||
|
"movq %3, %%rcx\n\t" // value of lda > rcx
|
||||||
|
"movq %4, %%rdi\n\t" // adress of x -> rdi
|
||||||
|
"movq %5, %%rdx\n\t" // adress of y -> rdx
|
||||||
|
|
||||||
|
"vxorps %%xmm12, %%xmm12, %%xmm12\n\t" // set to zero
|
||||||
|
|
||||||
|
".L01LOOP%=: \n\t"
|
||||||
|
"vbroadcastss (%%rdi), %%xmm0 \n\t" // load values of c
|
||||||
|
"addq $4 , %%rdi \n\t" // increment pointer of c
|
||||||
|
|
||||||
|
"vfmaddps %%xmm12, 0*4(%%rsi), %%xmm0, %%xmm12\n\t" // multiply a and c and add to temp
|
||||||
|
|
||||||
|
"leaq (%%rsi, %%rcx, 4), %%rsi \n\t" // add lda to pointer of a
|
||||||
|
|
||||||
|
"dec %%rax \n\t" // n = n -1
|
||||||
|
"jnz .L01LOOP%= \n\t"
|
||||||
|
|
||||||
|
"vmulps %%xmm12, %%xmm1, %%xmm12\n\t" // scale by alpha
|
||||||
|
|
||||||
|
"vmovups %%xmm12, (%%rdx) \n\t" // store temp -> y
|
||||||
|
|
||||||
|
:
|
||||||
|
:
|
||||||
|
"m" (n), // 0
|
||||||
|
"m" (alpha), // 1
|
||||||
|
"m" (a), // 2
|
||||||
|
"m" (lda), // 3
|
||||||
|
"m" (x), // 4
|
||||||
|
"m" (y) // 5
|
||||||
|
: "rax", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11",
|
||||||
|
"xmm0" , "xmm1",
|
||||||
|
"xmm12", "xmm13", "xmm14", "xmm15",
|
||||||
|
"memory"
|
||||||
|
);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
static void sgemv_kernel_2( long n, float alpha, float *a, long lda, float *x, float *y)
|
||||||
|
{
|
||||||
|
|
||||||
|
|
||||||
|
__asm __volatile
|
||||||
|
(
|
||||||
|
"movq %0, %%rax\n\t" // n -> rax
|
||||||
|
"vmovss %1, %%xmm1\n\t" // alpha -> xmm1
|
||||||
|
"movq %2, %%rsi\n\t" // adress of a -> rsi
|
||||||
|
"movq %3, %%rcx\n\t" // value of lda > rcx
|
||||||
|
"movq %4, %%rdi\n\t" // adress of x -> rdi
|
||||||
|
"movq %5, %%rdx\n\t" // adress of y -> rdx
|
||||||
|
|
||||||
|
"vxorps %%xmm12, %%xmm12, %%xmm12\n\t" // set to zero
|
||||||
|
"vxorps %%xmm13, %%xmm13, %%xmm13\n\t" // set to zero
|
||||||
|
|
||||||
|
".L01LOOP%=: \n\t"
|
||||||
|
"vmovss (%%rdi), %%xmm0 \n\t" // load values of c
|
||||||
|
"addq $4 , %%rdi \n\t" // increment pointer of c
|
||||||
|
|
||||||
|
"vfmaddss %%xmm12, 0*4(%%rsi), %%xmm0, %%xmm12\n\t" // multiply a and c and add to temp
|
||||||
|
"vfmaddss %%xmm13, 1*4(%%rsi), %%xmm0, %%xmm13\n\t" // multiply a and c and add to temp
|
||||||
|
|
||||||
|
"leaq (%%rsi, %%rcx, 4), %%rsi \n\t" // add lda to pointer of a
|
||||||
|
|
||||||
|
"dec %%rax \n\t" // n = n -1
|
||||||
|
"jnz .L01LOOP%= \n\t"
|
||||||
|
|
||||||
|
"vmulss %%xmm12, %%xmm1, %%xmm12\n\t" // scale by alpha
|
||||||
|
"vmulss %%xmm13, %%xmm1, %%xmm13\n\t" // scale by alpha
|
||||||
|
|
||||||
|
"vmovss %%xmm12, (%%rdx) \n\t" // store temp -> y
|
||||||
|
"vmovss %%xmm13, 4(%%rdx) \n\t" // store temp -> y
|
||||||
|
|
||||||
|
:
|
||||||
|
:
|
||||||
|
"m" (n), // 0
|
||||||
|
"m" (alpha), // 1
|
||||||
|
"m" (a), // 2
|
||||||
|
"m" (lda), // 3
|
||||||
|
"m" (x), // 4
|
||||||
|
"m" (y) // 5
|
||||||
|
: "rax", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11",
|
||||||
|
"xmm0" , "xmm1",
|
||||||
|
"xmm12", "xmm13", "xmm14", "xmm15",
|
||||||
|
"memory"
|
||||||
|
);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
static void sgemv_kernel_1( long n, float alpha, float *a, long lda, float *x, float *y)
|
||||||
|
{
|
||||||
|
|
||||||
|
|
||||||
|
__asm __volatile
|
||||||
|
(
|
||||||
|
"movq %0, %%rax\n\t" // n -> rax
|
||||||
|
"vmovss %1, %%xmm1\n\t" // alpha -> xmm1
|
||||||
|
"movq %2, %%rsi\n\t" // adress of a -> rsi
|
||||||
|
"movq %3, %%rcx\n\t" // value of lda > rcx
|
||||||
|
"movq %4, %%rdi\n\t" // adress of x -> rdi
|
||||||
|
"movq %5, %%rdx\n\t" // adress of y -> rdx
|
||||||
|
|
||||||
|
"vxorps %%xmm12, %%xmm12, %%xmm12\n\t" // set to zero
|
||||||
|
|
||||||
|
".L01LOOP%=: \n\t"
|
||||||
|
"vmovss (%%rdi), %%xmm0 \n\t" // load values of c
|
||||||
|
"addq $4 , %%rdi \n\t" // increment pointer of c
|
||||||
|
|
||||||
|
"vfmaddss %%xmm12, 0*4(%%rsi), %%xmm0, %%xmm12\n\t" // multiply a and c and add to temp
|
||||||
|
|
||||||
|
"leaq (%%rsi, %%rcx, 4), %%rsi \n\t" // add lda to pointer of a
|
||||||
|
|
||||||
|
"dec %%rax \n\t" // n = n -1
|
||||||
|
"jnz .L01LOOP%= \n\t"
|
||||||
|
|
||||||
|
"vmulss %%xmm12, %%xmm1, %%xmm12\n\t" // scale by alpha
|
||||||
|
|
||||||
|
"vmovss %%xmm12, (%%rdx) \n\t" // store temp -> y
|
||||||
|
|
||||||
|
:
|
||||||
|
:
|
||||||
|
"m" (n), // 0
|
||||||
|
"m" (alpha), // 1
|
||||||
|
"m" (a), // 2
|
||||||
|
"m" (lda), // 3
|
||||||
|
"m" (x), // 4
|
||||||
|
"m" (y) // 5
|
||||||
|
: "rax", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11",
|
||||||
|
"xmm0" , "xmm1",
|
||||||
|
"xmm12", "xmm13", "xmm14", "xmm15",
|
||||||
|
"memory"
|
||||||
|
);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
Loading…
Reference in New Issue