217 lines
6.7 KiB
C
217 lines
6.7 KiB
C
/***************************************************************************
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Copyright (c) 2013-2016, 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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/**************************************************************************************
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* 2016/03/27 Werner Saar (wernsaar@googlemail.com)
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*
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* I don't use fused multiply-add ( precision problems with lapack )
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*
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* BLASTEST : OK
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* CTEST : OK
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* TEST : OK
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* LAPACK-TEST : OK
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**************************************************************************************/
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#define HAVE_KERNEL_16 1
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static void srot_kernel_16 (long n, float *x, float *y, float c, float s)
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{
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__vector float t0;
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__vector float t1;
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__vector float t2;
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__vector float t3;
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__vector float t4;
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__vector float t5;
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__vector float t6;
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__vector float t7;
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__asm__
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(
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"xscvdpspn 36, %x13 \n\t" // load c to all words
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"xxspltw 36, 36, 0 \n\t"
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"xscvdpspn 37, %x14 \n\t" // load s to all words
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"xxspltw 37, 37, 0 \n\t"
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"lxvw4x 32, 0, %3 \n\t" // load x
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"lxvw4x 33, %15, %3 \n\t"
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"lxvw4x 34, %16, %3 \n\t"
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"lxvw4x 35, %17, %3 \n\t"
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"lxvw4x 48, 0, %4 \n\t" // load y
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"lxvw4x 49, %15, %4 \n\t"
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"lxvw4x 50, %16, %4 \n\t"
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"lxvw4x 51, %17, %4 \n\t"
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"addi %3, %3, 64 \n\t"
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"addi %4, %4, 64 \n\t"
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"addic. %2, %2, -16 \n\t"
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"ble 2f \n\t"
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".p2align 5 \n"
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"1: \n\t"
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"xvmulsp 40, 32, 36 \n\t" // c * x
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"xvmulsp 41, 33, 36 \n\t"
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"xvmulsp 42, 34, 36 \n\t"
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"xvmulsp 43, 35, 36 \n\t"
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"xvmulsp %x5, 48, 36 \n\t" // c * y
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"xvmulsp %x6, 49, 36 \n\t"
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"xvmulsp %x7, 50, 36 \n\t"
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"xvmulsp %x8, 51, 36 \n\t"
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"xvmulsp 44, 32, 37 \n\t" // s * x
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"xvmulsp 45, 33, 37 \n\t"
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"lxvw4x 32, 0, %3 \n\t" // load x
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"lxvw4x 33, %15, %3 \n\t"
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"xvmulsp 46, 34, 37 \n\t"
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"xvmulsp 47, 35, 37 \n\t"
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"lxvw4x 34, %16, %3 \n\t"
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"lxvw4x 35, %17, %3 \n\t"
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"xvmulsp %x9, 48, 37 \n\t" // s * y
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"xvmulsp %x10, 49, 37 \n\t"
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"lxvw4x 48, 0, %4 \n\t" // load y
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"lxvw4x 49, %15, %4 \n\t"
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"xvmulsp %x11, 50, 37 \n\t"
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"xvmulsp %x12, 51, 37 \n\t"
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"lxvw4x 50, %16, %4 \n\t"
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"lxvw4x 51, %17, %4 \n\t"
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"xvaddsp 40, 40, %x9 \n\t" // c * x + s * y
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"xvaddsp 41, 41, %x10 \n\t" // c * x + s * y
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"addi %3, %3, -64 \n\t"
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"addi %4, %4, -64 \n\t"
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"xvaddsp 42, 42, %x11 \n\t" // c * x + s * y
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"xvaddsp 43, 43, %x12 \n\t" // c * x + s * y
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"xvsubsp %x5, %x5, 44 \n\t" // c * y - s * x
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"xvsubsp %x6, %x6, 45 \n\t" // c * y - s * x
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"xvsubsp %x7, %x7, 46 \n\t" // c * y - s * x
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"xvsubsp %x8, %x8, 47 \n\t" // c * y - s * x
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"stxvw4x 40, 0, %3 \n\t" // store x
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"stxvw4x 41, %15, %3 \n\t"
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"stxvw4x 42, %16, %3 \n\t"
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"stxvw4x 43, %17, %3 \n\t"
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"stxvw4x %x5, 0, %4 \n\t" // store y
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"stxvw4x %x6, %15, %4 \n\t"
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"stxvw4x %x7, %16, %4 \n\t"
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"stxvw4x %x8, %17, %4 \n\t"
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"addi %3, %3, 128 \n\t"
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"addi %4, %4, 128 \n\t"
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"addic. %2, %2, -16 \n\t"
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"bgt 1b \n"
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"2: \n\t"
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"xvmulsp 40, 32, 36 \n\t" // c * x
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"xvmulsp 41, 33, 36 \n\t"
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"xvmulsp 42, 34, 36 \n\t"
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"xvmulsp 43, 35, 36 \n\t"
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"xvmulsp %x5, 48, 36 \n\t" // c * y
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"xvmulsp %x6, 49, 36 \n\t"
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"xvmulsp %x7, 50, 36 \n\t"
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"xvmulsp %x8, 51, 36 \n\t"
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"xvmulsp 44, 32, 37 \n\t" // s * x
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"xvmulsp 45, 33, 37 \n\t"
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"xvmulsp 46, 34, 37 \n\t"
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"xvmulsp 47, 35, 37 \n\t"
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"xvmulsp %x9, 48, 37 \n\t" // s * y
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"xvmulsp %x10, 49, 37 \n\t"
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"xvmulsp %x11, 50, 37 \n\t"
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"xvmulsp %x12, 51, 37 \n\t"
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"addi %3, %3, -64 \n\t"
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"addi %4, %4, -64 \n\t"
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"xvaddsp 40, 40, %x9 \n\t" // c * x + s * y
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"xvaddsp 41, 41, %x10 \n\t" // c * x + s * y
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"xvaddsp 42, 42, %x11 \n\t" // c * x + s * y
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"xvaddsp 43, 43, %x12 \n\t" // c * x + s * y
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"xvsubsp %x5, %x5, 44 \n\t" // c * y - s * x
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"xvsubsp %x6, %x6, 45 \n\t" // c * y - s * x
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"xvsubsp %x7, %x7, 46 \n\t" // c * y - s * x
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"xvsubsp %x8, %x8, 47 \n\t" // c * y - s * x
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"stxvw4x 40, 0, %3 \n\t" // store x
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"stxvw4x 41, %15, %3 \n\t"
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"stxvw4x 42, %16, %3 \n\t"
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"stxvw4x 43, %17, %3 \n\t"
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"stxvw4x %x5, 0, %4 \n\t" // store y
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"stxvw4x %x6, %15, %4 \n\t"
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"stxvw4x %x7, %16, %4 \n\t"
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"stxvw4x %x8, %17, %4 \n"
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"#n=%2 x=%0=%3 y=%1=%4 c=%13 s=%14 o16=%15 o32=%16 o48=%17\n"
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"#t0=%x5 t1=%x6 t2=%x7 t3=%x8 t4=%x9 t5=%x10 t6=%x11 t7=%x12"
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:
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"+m" (*x),
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"+m" (*y),
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"+r" (n), // 2
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"+b" (x), // 3
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"+b" (y), // 4
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"=wa" (t0), // 5
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"=wa" (t1), // 6
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"=wa" (t2), // 7
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"=wa" (t3), // 8
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"=wa" (t4), // 9
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"=wa" (t5), // 10
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"=wa" (t6), // 11
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"=wa" (t7) // 12
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:
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"f" (c), // 13
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"f" (s), // 14
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"b" (16), // 15
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"b" (32), // 16
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"b" (48) // 17
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:
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"cr0",
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"vs32","vs33","vs34","vs35","vs36","vs37",
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"vs40","vs41","vs42","vs43","vs44","vs45","vs46","vs47",
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"vs48","vs49","vs50","vs51"
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);
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}
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