133 lines
5.6 KiB
C
133 lines
5.6 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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#define HAVE_KERNEL_4x4 1
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static void dsymv_kernel_4x4( BLASLONG from, BLASLONG to, FLOAT **a, FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2) __attribute__ ((noinline));
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static void dsymv_kernel_4x4(BLASLONG from, BLASLONG to, FLOAT **a, FLOAT *x, FLOAT *y, FLOAT *temp1, FLOAT *temp2)
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{
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__asm__ __volatile__
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(
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"xorpd %%xmm0 , %%xmm0 \n\t" // temp2[0]
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"xorpd %%xmm1 , %%xmm1 \n\t" // temp2[1]
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"xorpd %%xmm2 , %%xmm2 \n\t" // temp2[2]
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"xorpd %%xmm3 , %%xmm3 \n\t" // temp2[3]
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"movsd (%8), %%xmm4 \n\t" // temp1[0]
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"movsd 8(%8), %%xmm5 \n\t" // temp1[1]
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"movsd 16(%8), %%xmm6 \n\t" // temp1[2]
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"movsd 24(%8), %%xmm7 \n\t" // temp1[3]
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"shufpd $0, %%xmm4, %%xmm4 \n\t"
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"shufpd $0, %%xmm5, %%xmm5 \n\t"
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"shufpd $0, %%xmm6, %%xmm6 \n\t"
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"shufpd $0, %%xmm7, %%xmm7 \n\t"
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".p2align 4 \n\t"
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"1: \n\t"
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"movups (%4,%0,8), %%xmm12 \n\t" // 2 * a
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"movups (%2,%0,8), %%xmm8 \n\t" // 2 * x
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"movups %%xmm12 , %%xmm11 \n\t"
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"movups (%3,%0,8), %%xmm9 \n\t" // 2 * y
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"movups (%5,%0,8), %%xmm13 \n\t" // 2 * a
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"mulpd %%xmm4 , %%xmm11 \n\t" // temp1 * a
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"addpd %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulpd %%xmm8 , %%xmm12 \n\t" // a * x
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"addpd %%xmm12 , %%xmm0 \n\t" // temp2 += x * a
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"movups (%6,%0,8), %%xmm14 \n\t" // 2 * a
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"movups (%7,%0,8), %%xmm15 \n\t" // 2 * a
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"movups %%xmm13 , %%xmm11 \n\t"
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"mulpd %%xmm5 , %%xmm11 \n\t" // temp1 * a
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"addpd %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulpd %%xmm8 , %%xmm13 \n\t" // a * x
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"addpd %%xmm13 , %%xmm1 \n\t" // temp2 += x * a
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"movups %%xmm14 , %%xmm11 \n\t"
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"mulpd %%xmm6 , %%xmm11 \n\t" // temp1 * a
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"addpd %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulpd %%xmm8 , %%xmm14 \n\t" // a * x
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"addpd %%xmm14 , %%xmm2 \n\t" // temp2 += x * a
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"addq $2 , %0 \n\t"
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"movups %%xmm15 , %%xmm11 \n\t"
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"mulpd %%xmm7 , %%xmm11 \n\t" // temp1 * a
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"addpd %%xmm11 , %%xmm9 \n\t" // y += temp1 * a
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"mulpd %%xmm8 , %%xmm15 \n\t" // a * x
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"addpd %%xmm15 , %%xmm3 \n\t" // temp2 += x * a
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"movups %%xmm9,-16(%3,%0,8) \n\t" // 2 * y
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"cmpq %0 , %1 \n\t"
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"jnz 1b \n\t"
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"movsd (%9), %%xmm4 \n\t" // temp1[0]
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"movsd 8(%9), %%xmm5 \n\t" // temp1[1]
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"movsd 16(%9), %%xmm6 \n\t" // temp1[2]
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"movsd 24(%9), %%xmm7 \n\t" // temp1[3]
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"haddpd %%xmm0, %%xmm0 \n\t"
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"haddpd %%xmm1, %%xmm1 \n\t"
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"haddpd %%xmm2, %%xmm2 \n\t"
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"haddpd %%xmm3, %%xmm3 \n\t"
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"addsd %%xmm4, %%xmm0 \n\t"
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"addsd %%xmm5, %%xmm1 \n\t"
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"addsd %%xmm6, %%xmm2 \n\t"
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"addsd %%xmm7, %%xmm3 \n\t"
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"movsd %%xmm0 , (%9) \n\t" // save temp2
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"movsd %%xmm1 , 8(%9) \n\t" // save temp2
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"movsd %%xmm2 , 16(%9) \n\t" // save temp2
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"movsd %%xmm3 , 24(%9) \n\t" // save temp2
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:
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"+r" (from) // 0
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:
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"r" (to), // 1
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"r" (x), // 2
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"r" (y), // 3
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"r" (a[0]), // 4
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"r" (a[1]), // 5
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"r" (a[2]), // 6
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"r" (a[3]), // 7
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"r" (temp1), // 8
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"r" (temp2) // 9
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: "cc",
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"%xmm0", "%xmm1", "%xmm2", "%xmm3",
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"%xmm4", "%xmm5", "%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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