optimized sgemv_n kernel for small sizes
This commit is contained in:
wernsaar
parent
3a5d8dbff9
commit
7f910010a0
|
|
@ -185,17 +185,8 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
|
||||||
|
|
||||||
ybuffer = buffer;
|
ybuffer = buffer;
|
||||||
|
|
||||||
if ( inc_x == 1 )
|
n1 = n >> 3 ;
|
||||||
{
|
n2 = n & 7 ;
|
||||||
n1 = n >> 3 ;
|
|
||||||
n2 = n & 7 ;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
n1 = n >> 2 ;
|
|
||||||
n2 = n & 3 ;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
m3 = m & 3 ;
|
m3 = m & 3 ;
|
||||||
m1 = m & -4 ;
|
m1 = m & -4 ;
|
||||||
|
|
@ -267,6 +258,32 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
|
||||||
{
|
{
|
||||||
|
|
||||||
for( i = 0; i < n1 ; i++)
|
for( i = 0; i < n1 ; i++)
|
||||||
|
{
|
||||||
|
xbuffer[0] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
xbuffer[1] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
xbuffer[2] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
xbuffer[3] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
xbuffer[4] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
xbuffer[5] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
xbuffer[6] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
xbuffer[7] = x_ptr[0];
|
||||||
|
x_ptr += inc_x;
|
||||||
|
sgemv_kernel_4x8(NB,ap,x_ptr,ybuffer,lda4);
|
||||||
|
ap[0] += lda8;
|
||||||
|
ap[1] += lda8;
|
||||||
|
ap[2] += lda8;
|
||||||
|
ap[3] += lda8;
|
||||||
|
a_ptr += lda8;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ( n2 & 4 )
|
||||||
{
|
{
|
||||||
xbuffer[0] = x_ptr[0];
|
xbuffer[0] = x_ptr[0];
|
||||||
x_ptr += inc_x;
|
x_ptr += inc_x;
|
||||||
|
|
@ -284,7 +301,7 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
|
||||||
a_ptr += lda4;
|
a_ptr += lda4;
|
||||||
}
|
}
|
||||||
|
|
||||||
for( i = 0; i < n2 ; i++)
|
for( i = 0; i < ( n2 & 3) ; i++)
|
||||||
{
|
{
|
||||||
xbuffer[0] = x_ptr[0];
|
xbuffer[0] = x_ptr[0];
|
||||||
x_ptr += inc_x;
|
x_ptr += inc_x;
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,254 @@
|
||||||
|
/***************************************************************************
|
||||||
|
Copyright (c) 2014, The OpenBLAS Project
|
||||||
|
All rights reserved.
|
||||||
|
Redistribution and use in source and binary forms, with or without
|
||||||
|
modification, are permitted provided that the following conditions are
|
||||||
|
met:
|
||||||
|
1. Redistributions of source code must retain the above copyright
|
||||||
|
notice, this list of conditions and the following disclaimer.
|
||||||
|
2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
notice, this list of conditions and the following disclaimer in
|
||||||
|
the documentation and/or other materials provided with the
|
||||||
|
distribution.
|
||||||
|
3. Neither the name of the OpenBLAS project nor the names of
|
||||||
|
its contributors may be used to endorse or promote products
|
||||||
|
derived from this software without specific prior written permission.
|
||||||
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||||
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
|
||||||
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||||
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||||
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
|
||||||
|
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*****************************************************************************/
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#define HAVE_KERNEL_4x8 1
|
||||||
|
static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4) __attribute__ ((noinline));
|
||||||
|
|
||||||
|
static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4)
|
||||||
|
{
|
||||||
|
|
||||||
|
BLASLONG register i = 0;
|
||||||
|
|
||||||
|
__asm__ __volatile__
|
||||||
|
(
|
||||||
|
"vbroadcastss (%2), %%xmm12 \n\t" // x0
|
||||||
|
"vbroadcastss 4(%2), %%xmm13 \n\t" // x1
|
||||||
|
"vbroadcastss 8(%2), %%xmm14 \n\t" // x2
|
||||||
|
"vbroadcastss 12(%2), %%xmm15 \n\t" // x3
|
||||||
|
"vbroadcastss 16(%2), %%xmm0 \n\t" // x4
|
||||||
|
"vbroadcastss 20(%2), %%xmm1 \n\t" // x5
|
||||||
|
"vbroadcastss 24(%2), %%xmm2 \n\t" // x6
|
||||||
|
"vbroadcastss 28(%2), %%xmm3 \n\t" // x7
|
||||||
|
|
||||||
|
"testq $0x04, %1 \n\t"
|
||||||
|
"jz .L08LABEL%= \n\t"
|
||||||
|
|
||||||
|
"vxorps %%xmm5, %%xmm5 , %%xmm5 \n\t"
|
||||||
|
"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y
|
||||||
|
|
||||||
|
"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, (%5,%0,4), %%xmm13, %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%6,%0,4), %%xmm14, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, (%7,%0,4), %%xmm15, %%xmm5 \n\t"
|
||||||
|
"addq $4 , %0 \n\t"
|
||||||
|
|
||||||
|
"vfmaddps %%xmm4, (%4,%8,4), %%xmm0 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, (%5,%8,4), %%xmm1 , %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%6,%8,4), %%xmm2 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, (%7,%8,4), %%xmm3 , %%xmm5 \n\t"
|
||||||
|
"addq $4 , %8 \n\t"
|
||||||
|
|
||||||
|
"vaddps %%xmm4, %%xmm5, %%xmm6 \n\t"
|
||||||
|
"vmovups %%xmm6, -16(%3,%0,4) \n\t" // 4 * y
|
||||||
|
|
||||||
|
"subq $4 , %1 \n\t"
|
||||||
|
|
||||||
|
".L08LABEL%=: \n\t"
|
||||||
|
|
||||||
|
"testq $0x08, %1 \n\t"
|
||||||
|
"jz .L16LABEL%= \n\t"
|
||||||
|
|
||||||
|
"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y
|
||||||
|
"vmovups 16(%3,%0,4), %%xmm5 \n\t" // 4 * y
|
||||||
|
|
||||||
|
"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%4,%0,4), %%xmm12, %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%5,%0,4), %%xmm13, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%5,%0,4), %%xmm13, %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%6,%0,4), %%xmm14, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%6,%0,4), %%xmm14, %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%7,%0,4), %%xmm15, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%7,%0,4), %%xmm15, %%xmm5 \n\t"
|
||||||
|
|
||||||
|
"vfmaddps %%xmm4, (%4,%8,4), %%xmm0 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%4,%8,4), %%xmm0 , %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%5,%8,4), %%xmm1 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%5,%8,4), %%xmm1 , %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%6,%8,4), %%xmm2 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%6,%8,4), %%xmm2 , %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%7,%8,4), %%xmm3 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%7,%8,4), %%xmm3 , %%xmm5 \n\t"
|
||||||
|
|
||||||
|
"vmovups %%xmm4, (%3,%0,4) \n\t" // 4 * y
|
||||||
|
"vmovups %%xmm5, 16(%3,%0,4) \n\t" // 4 * y
|
||||||
|
|
||||||
|
"addq $8 , %0 \n\t"
|
||||||
|
"addq $8 , %8 \n\t"
|
||||||
|
"subq $8 , %1 \n\t"
|
||||||
|
|
||||||
|
|
||||||
|
".L16LABEL%=: \n\t"
|
||||||
|
|
||||||
|
"cmpq $0, %1 \n\t"
|
||||||
|
"je .L16END%= \n\t"
|
||||||
|
|
||||||
|
".align 16 \n\t"
|
||||||
|
".L01LOOP%=: \n\t"
|
||||||
|
|
||||||
|
"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y
|
||||||
|
".align 2 \n\t"
|
||||||
|
"vmovups 16(%3,%0,4), %%xmm5 \n\t" // 4 * y
|
||||||
|
"vmovups 32(%3,%0,4), %%xmm6 \n\t" // 4 * y
|
||||||
|
"vmovups 48(%3,%0,4), %%xmm7 \n\t" // 4 * y
|
||||||
|
|
||||||
|
"prefetcht0 192(%4,%0,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%4,%0,4), %%xmm12, %%xmm5 \n\t"
|
||||||
|
"prefetcht0 192(%5,%0,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%5,%0,4), %%xmm13, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%5,%0,4), %%xmm13, %%xmm5 \n\t"
|
||||||
|
"prefetcht0 192(%6,%0,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%6,%0,4), %%xmm14, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%6,%0,4), %%xmm14, %%xmm5 \n\t"
|
||||||
|
"prefetcht0 192(%7,%0,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%7,%0,4), %%xmm15, %%xmm4 \n\t"
|
||||||
|
".align 2 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%7,%0,4), %%xmm15, %%xmm5 \n\t"
|
||||||
|
|
||||||
|
"vfmaddps %%xmm6, 32(%4,%0,4), %%xmm12, %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%4,%0,4), %%xmm12, %%xmm7 \n\t"
|
||||||
|
"vfmaddps %%xmm6, 32(%5,%0,4), %%xmm13, %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%5,%0,4), %%xmm13, %%xmm7 \n\t"
|
||||||
|
"vfmaddps %%xmm6, 32(%6,%0,4), %%xmm14, %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%6,%0,4), %%xmm14, %%xmm7 \n\t"
|
||||||
|
"vfmaddps %%xmm6, 32(%7,%0,4), %%xmm15, %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%7,%0,4), %%xmm15, %%xmm7 \n\t"
|
||||||
|
|
||||||
|
"prefetcht0 192(%4,%8,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%4,%8,4), %%xmm0 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%4,%8,4), %%xmm0 , %%xmm5 \n\t"
|
||||||
|
"prefetcht0 192(%5,%8,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%5,%8,4), %%xmm1 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%5,%8,4), %%xmm1 , %%xmm5 \n\t"
|
||||||
|
"prefetcht0 192(%6,%8,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%6,%8,4), %%xmm2 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%6,%8,4), %%xmm2 , %%xmm5 \n\t"
|
||||||
|
"prefetcht0 192(%7,%8,4) \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%7,%8,4), %%xmm3 , %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, 16(%7,%8,4), %%xmm3 , %%xmm5 \n\t"
|
||||||
|
|
||||||
|
"vfmaddps %%xmm6, 32(%4,%8,4), %%xmm0 , %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%4,%8,4), %%xmm0 , %%xmm7 \n\t"
|
||||||
|
"vfmaddps %%xmm6, 32(%5,%8,4), %%xmm1 , %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%5,%8,4), %%xmm1 , %%xmm7 \n\t"
|
||||||
|
"addq $16, %0 \n\t"
|
||||||
|
"vfmaddps %%xmm6, 32(%6,%8,4), %%xmm2 , %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%6,%8,4), %%xmm2 , %%xmm7 \n\t"
|
||||||
|
"vfmaddps %%xmm6, 32(%7,%8,4), %%xmm3 , %%xmm6 \n\t"
|
||||||
|
"vfmaddps %%xmm7, 48(%7,%8,4), %%xmm3 , %%xmm7 \n\t"
|
||||||
|
|
||||||
|
"addq $16, %8 \n\t"
|
||||||
|
"vmovups %%xmm4,-64(%3,%0,4) \n\t" // 4 * y
|
||||||
|
"vmovups %%xmm5,-48(%3,%0,4) \n\t" // 4 * y
|
||||||
|
"subq $16, %1 \n\t"
|
||||||
|
"vmovups %%xmm6,-32(%3,%0,4) \n\t" // 4 * y
|
||||||
|
"vmovups %%xmm7,-16(%3,%0,4) \n\t" // 4 * y
|
||||||
|
|
||||||
|
"jnz .L01LOOP%= \n\t"
|
||||||
|
|
||||||
|
".L16END%=: \n\t"
|
||||||
|
|
||||||
|
:
|
||||||
|
:
|
||||||
|
"r" (i), // 0
|
||||||
|
"r" (n), // 1
|
||||||
|
"r" (x), // 2
|
||||||
|
"r" (y), // 3
|
||||||
|
"r" (ap[0]), // 4
|
||||||
|
"r" (ap[1]), // 5
|
||||||
|
"r" (ap[2]), // 6
|
||||||
|
"r" (ap[3]), // 7
|
||||||
|
"r" (lda4) // 8
|
||||||
|
: "cc",
|
||||||
|
"%xmm0", "%xmm1",
|
||||||
|
"%xmm2", "%xmm3",
|
||||||
|
"%xmm4", "%xmm5",
|
||||||
|
"%xmm6", "%xmm7",
|
||||||
|
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
|
||||||
|
"memory"
|
||||||
|
);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#define HAVE_KERNEL_4x4 1
|
||||||
|
static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y) __attribute__ ((noinline));
|
||||||
|
|
||||||
|
static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
|
||||||
|
{
|
||||||
|
|
||||||
|
BLASLONG register i = 0;
|
||||||
|
|
||||||
|
__asm__ __volatile__
|
||||||
|
(
|
||||||
|
"vbroadcastss (%2), %%xmm12 \n\t" // x0
|
||||||
|
"vbroadcastss 4(%2), %%xmm13 \n\t" // x1
|
||||||
|
"vbroadcastss 8(%2), %%xmm14 \n\t" // x2
|
||||||
|
"vbroadcastss 12(%2), %%xmm15 \n\t" // x3
|
||||||
|
|
||||||
|
".align 16 \n\t"
|
||||||
|
".L01LOOP%=: \n\t"
|
||||||
|
"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y
|
||||||
|
"vxorps %%xmm5, %%xmm5 , %%xmm5 \n\t"
|
||||||
|
|
||||||
|
"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, (%5,%0,4), %%xmm13, %%xmm5 \n\t"
|
||||||
|
"vfmaddps %%xmm4, (%6,%0,4), %%xmm14, %%xmm4 \n\t"
|
||||||
|
"vfmaddps %%xmm5, (%7,%0,4), %%xmm15, %%xmm5 \n\t"
|
||||||
|
|
||||||
|
"vaddps %%xmm4, %%xmm5, %%xmm6 \n\t"
|
||||||
|
|
||||||
|
"vmovups %%xmm6, (%3,%0,4) \n\t" // 4 * y
|
||||||
|
|
||||||
|
"addq $4 , %0 \n\t"
|
||||||
|
"subq $4 , %1 \n\t"
|
||||||
|
"jnz .L01LOOP%= \n\t"
|
||||||
|
|
||||||
|
:
|
||||||
|
:
|
||||||
|
"r" (i), // 0
|
||||||
|
"r" (n), // 1
|
||||||
|
"r" (x), // 2
|
||||||
|
"r" (y), // 3
|
||||||
|
"r" (ap[0]), // 4
|
||||||
|
"r" (ap[1]), // 5
|
||||||
|
"r" (ap[2]), // 6
|
||||||
|
"r" (ap[3]) // 7
|
||||||
|
: "cc",
|
||||||
|
"%xmm4", "%xmm5",
|
||||||
|
"%xmm6", "%xmm7",
|
||||||
|
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
|
||||||
|
"memory"
|
||||||
|
);
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
Loading…
Reference in New Issue