222 lines
7.6 KiB
C
222 lines
7.6 KiB
C
/***************************************************************************
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Copyright (c) 2020, 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_8 1
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static void caxpy_kernel_8 (long n, float *x, float *y,
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float alpha_r, float alpha_i)
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{
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#if !defined(CONJ)
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static const float mvec[4] = { -1.0, 1.0, -1.0, 1.0 };
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#else
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static const float mvec[4] = { 1.0, -1.0, 1.0, -1.0 };
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#endif
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const float *mvecp = mvec;
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/* We have to load reverse mask for big endian. */
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#if (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
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__vector unsigned char mask={ 4,5,6,7,0,1,2,3,12,13,14,15,8,9,10,11};
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#else
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__vector unsigned char mask = { 11,10,9,8,15,14,13,12,3,2,1,0,7,6,5,4};
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#endif
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long ytmp;
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__asm__
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(
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"xscvdpspn 32, %7 \n\t"
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"xscvdpspn 33, %8 \n\t"
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"xxspltw 32, 32, 0 \n\t"
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"xxspltw 33, 33, 0 \n\t"
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"lxvd2x 36, 0, %9 \n\t" // mvec
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#if !defined(CONJ)
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"xvmulsp 33, 33, 36 \n\t" // alpha_i * mvec
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#else
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"xvmulsp 32, 32, 36 \n\t" // alpha_r * mvec
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#endif
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"mr %4, %3 \n\t"
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"dcbt 0, %2 \n\t"
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"dcbt 0, %3 \n\t"
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"lxvp 40, 0(%2) \n\t" // x0
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"lxvp 42, 32(%2) \n\t" // x2
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"lxvp 48, 0(%3) \n\t" // y0
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"lxvp 50, 32(%3) \n\t" // y2
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"xxperm 52, 40, %x10 \n\t" // exchange real and imag part
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"xxperm 53, 41, %x10 \n\t" // exchange real and imag part
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"xxperm 54, 42, %x10 \n\t" // exchange real and imag part
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"xxperm 55, 43, %x10 \n\t" // exchange real and imag part
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"lxvp 44, 64(%2) \n\t" // x4
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"lxvp 46, 96(%2) \n\t" // x6
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"lxvp 34, 64(%3) \n\t" // y4
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"lxvp 38, 96(%3) \n\t" // y6
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"xxperm 56, 44, %x10 \n\t" // exchange real and imag part
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"xxperm 57, 45, %x10 \n\t" // exchange real and imag part
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"xxperm 58, 46, %x10 \n\t" // exchange real and imag part
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"xxperm 59, 47, %x10 \n\t" // exchange real and imag part
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"addi %2, %2, 128 \n\t"
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"addi %3, %3, 128 \n\t"
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"addic. %1, %1, -16 \n\t"
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"ble two%= \n\t"
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".align 5 \n"
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"one%=: \n\t"
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"xvmaddasp 48, 40, 32 \n\t" // alpha_r * x0_r , alpha_r * x0_i
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"xvmaddasp 49, 41, 32 \n\t"
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"lxvp 40, 0(%2) \n\t" // x0
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"xvmaddasp 50, 42, 32 \n\t"
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"xvmaddasp 51, 43, 32 \n\t"
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"lxvp 42, 32(%2) \n\t" // x2
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"xvmaddasp 34, 44, 32 \n\t"
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"xvmaddasp 35, 45, 32 \n\t"
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"lxvp 44, 64(%2) \n\t" // x4
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"xvmaddasp 38, 46, 32 \n\t"
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"xvmaddasp 39, 47, 32 \n\t"
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"lxvp 46, 96(%2) \n\t" // x6
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"xvmaddasp 48, 52, 33 \n\t" // alpha_i * x0_i , alpha_i * x0_r
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"addi %2, %2, 128 \n\t"
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"xvmaddasp 49, 53, 33 \n\t"
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"xvmaddasp 50, 54, 33 \n\t"
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"xvmaddasp 51, 55, 33 \n\t"
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"xvmaddasp 34, 56, 33 \n\t"
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"xvmaddasp 35, 57, 33 \n\t"
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"xvmaddasp 38, 58, 33 \n\t"
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"xvmaddasp 39, 59, 33 \n\t"
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#if (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
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"stxv 48, 0(%4) \n\t"
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"stxv 49, 16(%4) \n\t"
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"stxv 50, 32(%4) \n\t"
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"stxv 51, 48(%4) \n\t"
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"stxv 34, 64(%4) \n\t"
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"stxv 35, 80(%4) \n\t"
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"stxv 38, 96(%4) \n\t"
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"stxv 39, 112(%4) \n\t"
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#else
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"stxv 49, 0(%4) \n\t"
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"stxv 48, 16(%4) \n\t"
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"stxv 51, 32(%4) \n\t"
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"stxv 50, 48(%4) \n\t"
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"stxv 35, 64(%4) \n\t"
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"stxv 34, 80(%4) \n\t"
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"stxv 39, 96(%4) \n\t"
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"stxv 38, 112(%4) \n\t"
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#endif
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"addi %4, %4, 128 \n\t"
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"xxperm 52, 40, %x10 \n\t" // exchange real and imag part
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"xxperm 53, 41, %x10 \n\t" // exchange real and imag part
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"lxvp 48, 0(%3) \n\t" // y0
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"xxperm 54, 42, %x10 \n\t" // exchange real and imag part
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"xxperm 55, 43, %x10 \n\t" // exchange real and imag part
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"lxvp 50, 32(%3) \n\t" // y2
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"xxperm 56, 44, %x10 \n\t" // exchange real and imag part
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"xxperm 57, 45, %x10 \n\t" // exchange real and imag part
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"lxvp 34, 64(%3) \n\t" // y4
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"xxperm 58, 46, %x10 \n\t" // exchange real and imag part
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"xxperm 59, 47, %x10 \n\t" // exchange real and imag part
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"lxvp 38, 96(%3) \n\t" // y6
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"addi %3, %3, 128 \n\t"
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"addic. %1, %1, -16 \n\t"
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"bgt one%= \n"
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"two%=: \n\t"
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"xvmaddasp 48, 40, 32 \n\t" // alpha_r * x0_r , alpha_r * x0_i
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"xvmaddasp 49, 41, 32 \n\t"
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"xvmaddasp 50, 42, 32 \n\t"
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"xvmaddasp 51, 43, 32 \n\t"
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"xvmaddasp 34, 44, 32 \n\t"
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"xvmaddasp 35, 45, 32 \n\t"
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"xvmaddasp 38, 46, 32 \n\t"
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"xvmaddasp 39, 47, 32 \n\t"
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"xvmaddasp 48, 52, 33 \n\t" // alpha_i * x0_i , alpha_i * x0_r
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"xvmaddasp 49, 53, 33 \n\t"
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"xvmaddasp 50, 54, 33 \n\t"
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"xvmaddasp 51, 55, 33 \n\t"
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"xvmaddasp 34, 56, 33 \n\t"
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"xvmaddasp 35, 57, 33 \n\t"
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"xvmaddasp 38, 58, 33 \n\t"
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"xvmaddasp 39, 59, 33 \n\t"
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#if (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
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"stxv 48, 0(%4) \n\t"
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"stxv 49, 16(%4) \n\t"
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"stxv 50, 32(%4) \n\t"
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"stxv 51, 48(%4) \n\t"
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"stxv 34, 64(%4) \n\t"
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"stxv 35, 80(%4) \n\t"
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"stxv 38, 96(%4) \n\t"
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"stxv 39, 112(%4) \n\t"
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#else
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"stxv 49, 0(%4) \n\t"
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"stxv 48, 16(%4) \n\t"
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"stxv 51, 32(%4) \n\t"
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"stxv 50, 48(%4) \n\t"
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"stxv 35, 64(%4) \n\t"
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"stxv 34, 80(%4) \n\t"
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"stxv 39, 96(%4) \n\t"
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"stxv 38, 112(%4) \n\t"
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#endif
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"#n=%1 x=%5=%2 y=%0=%3 alpha=(%7,%8) mvecp=%6=%9 ytmp=%4\n"
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:
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"+m" (*y),
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"+r" (n), // 1
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"+b" (x), // 2
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"+b" (y), // 3
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"=b" (ytmp) // 4
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:
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"m" (*x),
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"m" (*mvecp),
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"d" (alpha_r), // 7
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"d" (alpha_i), // 8
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"4" (mvecp), // 9
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"wa" (mask)
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:
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"cr0",
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"vs32","vs33","vs34","vs35","vs36","vs37","vs38","vs39",
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"vs40","vs41","vs42","vs43","vs44","vs45","vs46","vs47",
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"vs48","vs49","vs50","vs51","vs52","vs53","vs54","vs55",
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"vs56","vs57","vs58","vs59"
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);
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}
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