/*************************************************************************** Copyright (c) 2013-2016, 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. *****************************************************************************/ /************************************************************************************** * 2016/03/27 Werner Saar (wernsaar@googlemail.com) * * I don't use fused multiply-add ( precision problems with lapack ) * * BLASTEST : OK * CTEST : OK * TEST : OK * LAPACK-TEST : OK **************************************************************************************/ #define HAVE_KERNEL_16 1 static void srot_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *c, FLOAT *s) __attribute__ ((noinline)); static void srot_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *c, FLOAT *s) { BLASLONG i = n; BLASLONG o16 = 16; BLASLONG o32 = 32; BLASLONG o48 = 48; FLOAT *x1=x; FLOAT *y1=y; FLOAT *x2=x+1; FLOAT *y2=y+1; __asm__ __volatile__ ( "lxvw4x 36 , 0, %3 \n\t" // load c "lxvw4x 37 , 0, %4 \n\t" // load s "addi %8 , %8, -4 \n\t" "addi %9 , %9, -4 \n\t" "lxvw4x 32, 0, %1 \n\t" // load x "lxvw4x 33, %5, %1 \n\t" "lxvw4x 34, %6, %1 \n\t" "lxvw4x 35, %7, %1 \n\t" "lxvw4x 40, 0, %2 \n\t" // load y "lxvw4x 41, %5, %2 \n\t" "lxvw4x 42, %6, %2 \n\t" "lxvw4x 43, %7, %2 \n\t" "addi %1, %1, 64 \n\t" "addi %2, %2, 64 \n\t" "addic. %0 , %0 , -16 \n\t" "ble 2f \n\t" ".align 5 \n\t" "1: \n\t" "xvmulsp 48, 32, 36 \n\t" // c * x "xvmulsp 49, 33, 36 \n\t" "xvmulsp 50, 34, 36 \n\t" "xvmulsp 51, 35, 36 \n\t" "xvmulsp 56, 40, 36 \n\t" // c * y "xvmulsp 57, 41, 36 \n\t" "xvmulsp 58, 42, 36 \n\t" "xvmulsp 59, 43, 36 \n\t" "xvmulsp 52, 32, 37 \n\t" // s * x "xvmulsp 53, 33, 37 \n\t" "lxvw4x 32, 0, %1 \n\t" // load x "lxvw4x 33, %5, %1 \n\t" "xvmulsp 54, 34, 37 \n\t" "xvmulsp 55, 35, 37 \n\t" "lxvw4x 34, %6, %1 \n\t" "lxvw4x 35, %7, %1 \n\t" "xvmulsp 60, 40, 37 \n\t" // s * y "xvmulsp 61, 41, 37 \n\t" "lxvw4x 40, 0, %2 \n\t" // load y "lxvw4x 41, %5, %2 \n\t" "xvmulsp 62, 42, 37 \n\t" "xvmulsp 63, 43, 37 \n\t" "lxvw4x 42, %6, %2 \n\t" "lxvw4x 43, %7, %2 \n\t" "xvaddsp 48, 48 , 60 \n\t" // c * x + s * y "xvaddsp 49, 49 , 61 \n\t" // c * x + s * y "addi %1, %1, 64 \n\t" "addi %2, %2, 64 \n\t" "xvaddsp 50, 50 , 62 \n\t" // c * x + s * y "xvaddsp 51, 51 , 63 \n\t" // c * x + s * y "xvsubsp 56, 56 , 52 \n\t" // c * y - s * x "xvsubsp 57, 57 , 53 \n\t" // c * y - s * x "xvsubsp 58, 58 , 54 \n\t" // c * y - s * x "xvsubsp 59, 59 , 55 \n\t" // c * y - s * x "stxvw4x 48, 0, %8 \n\t" // store x "stxvw4x 49, %5, %8 \n\t" "stxvw4x 50, %6, %8 \n\t" "stxvw4x 51, %7, %8 \n\t" "stxvw4x 56, 0, %9 \n\t" // store y "stxvw4x 57, %5, %9 \n\t" "stxvw4x 58, %6, %9 \n\t" "stxvw4x 59, %7, %9 \n\t" "addi %8, %8, 64 \n\t" "addi %9, %9, 64 \n\t" "addic. %0 , %0 , -16 \n\t" "bgt 1b \n\t" "2: \n\t" "xvmulsp 48, 32, 36 \n\t" // c * x "xvmulsp 49, 33, 36 \n\t" "xvmulsp 50, 34, 36 \n\t" "xvmulsp 51, 35, 36 \n\t" "xvmulsp 56, 40, 36 \n\t" // c * y "xvmulsp 57, 41, 36 \n\t" "xvmulsp 58, 42, 36 \n\t" "xvmulsp 59, 43, 36 \n\t" "xvmulsp 52, 32, 37 \n\t" // s * x "xvmulsp 53, 33, 37 \n\t" "xvmulsp 54, 34, 37 \n\t" "xvmulsp 55, 35, 37 \n\t" "xvmulsp 60, 40, 37 \n\t" // s * y "xvmulsp 61, 41, 37 \n\t" "xvmulsp 62, 42, 37 \n\t" "xvmulsp 63, 43, 37 \n\t" "xvaddsp 48, 48 , 60 \n\t" // c * x + s * y "xvaddsp 49, 49 , 61 \n\t" // c * x + s * y "xvaddsp 50, 50 , 62 \n\t" // c * x + s * y "xvaddsp 51, 51 , 63 \n\t" // c * x + s * y "xvsubsp 56, 56 , 52 \n\t" // c * y - s * x "xvsubsp 57, 57 , 53 \n\t" // c * y - s * x "xvsubsp 58, 58 , 54 \n\t" // c * y - s * x "xvsubsp 59, 59 , 55 \n\t" // c * y - s * x "stxvw4x 48, 0, %8 \n\t" // store x "stxvw4x 49, %5, %8 \n\t" "stxvw4x 50, %6, %8 \n\t" "stxvw4x 51, %7, %8 \n\t" "stxvw4x 56, 0, %9 \n\t" // store y "stxvw4x 57, %5, %9 \n\t" "stxvw4x 58, %6, %9 \n\t" "stxvw4x 59, %7, %9 \n\t" : : "r" (i), // 0 "r" (x1), // 1 "r" (y1), // 2 "r" (c), // 3 "r" (s), // 4 "r" (o16), // 5 "r" (o32), // 6 "r" (o48), // 7 "r" (x2), // 8 "r" (y2) // 9 : "cr0", "%0", "%1" , "%2", "%8", "%9", "memory" ); }