Optimize daxpy/zaxpy for POWER10
This patch makes use of new POWER10 vector pair instructions for loads and stores. Tested in simulator and no new failures.
This commit is contained in:
parent
2855e6000c
commit
be43d2cb96
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@ -142,13 +142,13 @@ CASUMKERNEL = casum.c
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ZASUMKERNEL = zasum.c
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#
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SAXPYKERNEL = saxpy.c
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DAXPYKERNEL = daxpy.c
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DAXPYKERNEL = daxpy_power10.c
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ifneq ($(GCCVERSIONGTEQ9),1)
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CAXPYKERNEL = caxpy_power9.S
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else
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CAXPYKERNEL = caxpy.c
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endif
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ZAXPYKERNEL = zaxpy.c
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ZAXPYKERNEL = zaxpy_power10.c
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#
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SCOPYKERNEL = scopy.c
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DCOPYKERNEL = dcopy.c
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@ -0,0 +1,131 @@
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/***************************************************************************
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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
|
||||
notice, this list of conditions and the following disclaimer in
|
||||
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
|
||||
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
|
||||
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
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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 daxpy_kernel_8 (long n, double *x, double *y, double alpha)
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{
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__vector double t0;
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__asm__
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(
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XXSPLTD_S(%x4,%x6,0)
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"dcbt 0, %2 \n\t"
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"dcbt 0, %3 \n\t"
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"lxvp 32, 0(%2) \n\t"
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"lxvp 34, 32(%2) \n\t"
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"lxvp 40, 64(%2) \n\t"
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"lxvp 42, 96(%2) \n\t"
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"lxvp 36, 0(%3) \n\t"
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"lxvp 38, 32(%3) \n\t"
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"lxvp 44, 64(%3) \n\t"
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"lxvp 46, 96(%3) \n\t"
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"addi %2, %2, 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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"xvmaddadp 36, 32, %x4 \n\t"
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"xvmaddadp 37, 33, %x4 \n\t"
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"lxvp 32, 0(%2) \n\t"
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"stxvp 36, 0(%3) \n\t"
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"xvmaddadp 38, 34, %x4 \n\t"
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"xvmaddadp 39, 35, %x4 \n\t"
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"lxvp 34, 32(%2) \n\t"
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"stxvp 38, 32(%3) \n\t"
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"lxvp 36, 128(%3) \n\t"
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"lxvp 38, 160(%3) \n\t"
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"xvmaddadp 44, 40, %x4 \n\t"
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"xvmaddadp 45, 41, %x4 \n\t"
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"lxvp 40, 64(%2) \n\t"
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"stxvp 44, 64(%3) \n\t"
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"xvmaddadp 46, 42, %x4 \n\t"
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"xvmaddadp 47, 43, %x4 \n\t"
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"lxvp 42, 96(%2) \n\t"
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"stxvp 46, 96(%3) \n\t"
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"addi %2, %2, 128 \n\t"
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"addi %3, %3, 128 \n\t"
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"lxvp 44, 64(%3) \n\t"
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"lxvp 46, 96(%3) \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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"xvmaddadp 36, 32, %x4 \n\t"
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"xvmaddadp 37, 33, %x4 \n\t"
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"xvmaddadp 38, 34, %x4 \n\t"
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"xvmaddadp 39, 35, %x4 \n\t"
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"xvmaddadp 44, 40, %x4 \n\t"
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"xvmaddadp 45, 41, %x4 \n\t"
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"xvmaddadp 46, 42, %x4 \n\t"
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"xvmaddadp 47, 43, %x4 \n\t"
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"stxvp 36, 0(%3) \n\t"
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"stxvp 38, 32(%3) \n\t"
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"stxvp 44, 64(%3) \n\t"
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"stxvp 46, 96(%3) \n\t"
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"#n=%1 x=%5=%2 y=%0=%3 alpha=%6 t0=%x4\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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"=wa" (t0) // 4
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:
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"m" (*x),
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"d" (alpha) // 6
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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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);
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}
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@ -0,0 +1,121 @@
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/***************************************************************************
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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
|
||||
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
|
||||
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"
|
||||
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
|
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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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#include "common.h"
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#if defined(__VEC__) || defined(__ALTIVEC__)
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#include "daxpy_microk_power10.c"
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#endif
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#ifndef HAVE_KERNEL_8
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static void daxpy_kernel_8(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT alpha)
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{
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BLASLONG register i = 0;
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while(i < n)
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{
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y[i] += alpha * x[i];
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y[i+1] += alpha * x[i+1];
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y[i+2] += alpha * x[i+2];
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y[i+3] += alpha * x[i+3];
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y[i+4] += alpha * x[i+4];
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y[i+5] += alpha * x[i+5];
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y[i+6] += alpha * x[i+6];
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y[i+7] += alpha * x[i+7];
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i+=8 ;
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}
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}
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#endif
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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BLASLONG i=0;
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BLASLONG ix=0,iy=0;
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if ( n <= 0 ) return(0);
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if ( (inc_x == 1) && (inc_y == 1) )
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{
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BLASLONG n1 = n & -16;
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if ( n1 )
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daxpy_kernel_8(n1, x, y, da);
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i = n1;
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while(i < n)
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{
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y[i] += da * x[i] ;
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i++ ;
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}
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return(0);
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}
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BLASLONG n1 = n & -4;
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while(i < n1)
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{
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FLOAT m1 = da * x[ix] ;
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FLOAT m2 = da * x[ix+inc_x] ;
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FLOAT m3 = da * x[ix+2*inc_x] ;
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FLOAT m4 = da * x[ix+3*inc_x] ;
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y[iy] += m1 ;
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y[iy+inc_y] += m2 ;
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y[iy+2*inc_y] += m3 ;
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y[iy+3*inc_y] += m4 ;
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ix += inc_x*4 ;
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iy += inc_y*4 ;
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i+=4 ;
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}
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while(i < n)
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{
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y[iy] += da * x[ix] ;
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ix += inc_x ;
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iy += inc_y ;
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i++ ;
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}
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return(0);
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}
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@ -0,0 +1,200 @@
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/***************************************************************************
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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
|
||||
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
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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_4 1
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static void zaxpy_kernel_4 (long n, double *x, double *y,
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double alpha_r, double alpha_i)
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{
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#if !defined(CONJ)
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static const double mvec[2] = { 1.0, -1.0 };
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#else
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static const double mvec[2] = { -1.0, 1.0 };
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#endif
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const double *mvecp = mvec;
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__vector double t0;
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__vector double t1;
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__vector double t2;
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__vector double t3;
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__vector double t4;
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__vector double t5;
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__vector double t6;
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__vector double t7;
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long ytmp;
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__asm__
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(
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XXSPLTD_S(32,%x15,0) // alpha_r
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XXSPLTD_S(33,%x16,0) // alpha_i
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"lxvd2x 36, 0, %17 \n\t" // mvec
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#if !defined(CONJ)
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"xvmuldp 33, 33, 36 \n\t" // alpha_i * mvec
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#else
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"xvmuldp 32, 32, 36 \n\t" // alpha_r * mvec
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#endif
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"mr %12, %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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XXSWAPD_S(%x4,40) // exchange real and imag part
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XXSWAPD_S(%x5,41) // exchange real and imag part
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XXSWAPD_S(%x6,42) // exchange real and imag part
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XXSWAPD_S(%x7,43) // 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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XXSWAPD_S(%x8,44) // exchange real and imag part
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XXSWAPD_S(%x9,45) // exchange real and imag part
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XXSWAPD_S(%x10,46) // exchange real and imag part
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XXSWAPD_S(%x11,47) // 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, -8 \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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"xvmaddadp 48, 40, 32 \n\t" // alpha_r * x0_r , alpha_r * x0_i
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"xvmaddadp 49, 41, 32 \n\t"
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"lxvp 40, 0(%2) \n\t" // x0
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"xvmaddadp 50, 42, 32 \n\t"
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"xvmaddadp 51, 43, 32 \n\t"
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"lxvp 42, 32(%2) \n\t" // x2
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"xvmaddadp 34, 44, 32 \n\t"
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"xvmaddadp 35, 45, 32 \n\t"
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"lxvp 44, 64(%2) \n\t" // x4
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"xvmaddadp 38, 46, 32 \n\t"
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"xvmaddadp 39, 47, 32 \n\t"
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"lxvp 46, 96(%2) \n\t" // x6
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"xvmaddadp 48, %x4, 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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"xvmaddadp 49, %x5, 33 \n\t"
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"xvmaddadp 50, %x6, 33 \n\t"
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"xvmaddadp 51, %x7, 33 \n\t"
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"xvmaddadp 34, %x8, 33 \n\t"
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"xvmaddadp 35, %x9, 33 \n\t"
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"xvmaddadp 38, %x10, 33 \n\t"
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"xvmaddadp 39, %x11, 33 \n\t"
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"stxvp 48, 0(%12) \n\t"
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"stxvp 50, 32(%12) \n\t"
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"stxvp 34, 64(%12) \n\t"
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"stxvp 38, 96(%12) \n\t"
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"addi %12, %12, 128 \n\t"
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XXSWAPD_S(%x4,40) // exchange real and imag part
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XXSWAPD_S(%x5,41) // exchange real and imag part
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"lxvp 48, 0(%3) \n\t" // y0
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XXSWAPD_S(%x6,42) // exchange real and imag part
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XXSWAPD_S(%x7,43) // exchange real and imag part
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"lxvp 50, 32(%3) \n\t" // y2
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XXSWAPD_S(%x8,44) // exchange real and imag part
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XXSWAPD_S(%x9,45) // exchange real and imag part
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"lxvp 34, 64(%3) \n\t" // y4
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XXSWAPD_S(%x10,46) // exchange real and imag part
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XXSWAPD_S(%x11,47) // 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, -8 \n\t"
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"bgt one%= \n"
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"two%=: \n\t"
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"xvmaddadp 48, 40, 32 \n\t" // alpha_r * x0_r , alpha_r * x0_i
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"xvmaddadp 49, 41, 32 \n\t"
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"xvmaddadp 50, 42, 32 \n\t"
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"xvmaddadp 51, 43, 32 \n\t"
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"xvmaddadp 34, 44, 32 \n\t"
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"xvmaddadp 35, 45, 32 \n\t"
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"xvmaddadp 38, 46, 32 \n\t"
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"xvmaddadp 39, 47, 32 \n\t"
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||||
|
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"xvmaddadp 48, %x4, 33 \n\t" // alpha_i * x0_i , alpha_i * x0_r
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"xvmaddadp 49, %x5, 33 \n\t"
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"xvmaddadp 50, %x6, 33 \n\t"
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"xvmaddadp 51, %x7, 33 \n\t"
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"xvmaddadp 34, %x8, 33 \n\t"
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||||
"xvmaddadp 35, %x9, 33 \n\t"
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||||
"xvmaddadp 38, %x10, 33 \n\t"
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"xvmaddadp 39, %x11, 33 \n\t"
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||||
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"stxvp 48, 0(%12) \n\t"
|
||||
"stxvp 50, 32(%12) \n\t"
|
||||
"stxvp 34, 64(%12) \n\t"
|
||||
"stxvp 38, 96(%12) \n\t"
|
||||
|
||||
"#n=%1 x=%13=%2 y=%0=%3 alpha=(%15,%16) mvecp=%14=%17 ytmp=%12\n"
|
||||
"#t0=%x4 t1=%x5 t2=%x6 t3=%x7 t4=%x8 t5=%x9 t6=%x10 t7=%x11"
|
||||
:
|
||||
"+m" (*y),
|
||||
"+r" (n), // 1
|
||||
"+b" (x), // 2
|
||||
"+b" (y), // 3
|
||||
"=wa" (t0), // 4
|
||||
"=wa" (t1), // 5
|
||||
"=wa" (t2), // 6
|
||||
"=wa" (t3), // 7
|
||||
"=wa" (t4), // 8
|
||||
"=wa" (t5), // 9
|
||||
"=wa" (t6), // 10
|
||||
"=wa" (t7), // 11
|
||||
"=b" (ytmp) // 12
|
||||
:
|
||||
"m" (*x),
|
||||
"m" (*mvecp),
|
||||
"d" (alpha_r), // 15
|
||||
"d" (alpha_i), // 16
|
||||
"12" (mvecp) // 17
|
||||
:
|
||||
"cr0",
|
||||
"vs32","vs33","vs34","vs35","vs36","vs37","vs38","vs39",
|
||||
"vs40","vs41","vs42","vs43","vs44","vs45","vs46","vs47",
|
||||
"vs48","vs49","vs50","vs51"
|
||||
);
|
||||
}
|
|
@ -0,0 +1,126 @@
|
|||
/***************************************************************************
|
||||
Copyright (c) 2020, 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.
|
||||
*****************************************************************************/
|
||||
|
||||
#include "common.h"
|
||||
|
||||
|
||||
#if defined(__VEC__) || defined(__ALTIVEC__)
|
||||
#include "zaxpy_microk_power10.c"
|
||||
#endif
|
||||
|
||||
|
||||
#ifndef HAVE_KERNEL_4
|
||||
|
||||
static void zaxpy_kernel_4(BLASLONG n, FLOAT *x, FLOAT *y, FLOAT da_r,FLOAT da_i)
|
||||
{
|
||||
BLASLONG register i = 0;
|
||||
BLASLONG register ix = 0;
|
||||
|
||||
|
||||
|
||||
while(i < n)
|
||||
{
|
||||
#if !defined(CONJ)
|
||||
y[ix] += ( da_r * x[ix] - da_i * x[ix+1] ) ;
|
||||
y[ix+1] += ( da_r * x[ix+1] + da_i * x[ix] ) ;
|
||||
y[ix+2] += ( da_r * x[ix+2] - da_i * x[ix+3] ) ;
|
||||
y[ix+3] += ( da_r * x[ix+3] + da_i * x[ix+2] ) ;
|
||||
#else
|
||||
y[ix] += ( da_r * x[ix] + da_i * x[ix+1] ) ;
|
||||
y[ix+1] -= ( da_r * x[ix+1] - da_i * x[ix] ) ;
|
||||
y[ix+2] += ( da_r * x[ix+2] + da_i * x[ix+3] ) ;
|
||||
y[ix+3] -= ( da_r * x[ix+3] - da_i * x[ix+2] ) ;
|
||||
#endif
|
||||
|
||||
ix+=4 ;
|
||||
i+=2 ;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
|
||||
{
|
||||
BLASLONG i=0;
|
||||
BLASLONG ix=0,iy=0;
|
||||
|
||||
if ( n <= 0 ) return(0);
|
||||
|
||||
if ( (inc_x == 1) && (inc_y == 1) )
|
||||
{
|
||||
|
||||
BLASLONG n1 = n & -16;
|
||||
|
||||
if ( n1 )
|
||||
{
|
||||
zaxpy_kernel_4 (n1, x, y, da_r, da_i);
|
||||
ix = 2 * n1;
|
||||
}
|
||||
i = n1;
|
||||
while(i < n)
|
||||
{
|
||||
#if !defined(CONJ)
|
||||
y[ix] += ( da_r * x[ix] - da_i * x[ix+1] ) ;
|
||||
y[ix+1] += ( da_r * x[ix+1] + da_i * x[ix] ) ;
|
||||
#else
|
||||
y[ix] += ( da_r * x[ix] + da_i * x[ix+1] ) ;
|
||||
y[ix+1] -= ( da_r * x[ix+1] - da_i * x[ix] ) ;
|
||||
#endif
|
||||
i++ ;
|
||||
ix += 2;
|
||||
|
||||
}
|
||||
return(0);
|
||||
|
||||
|
||||
}
|
||||
|
||||
inc_x *=2;
|
||||
inc_y *=2;
|
||||
|
||||
while(i < n)
|
||||
{
|
||||
|
||||
#if !defined(CONJ)
|
||||
y[iy] += ( da_r * x[ix] - da_i * x[ix+1] ) ;
|
||||
y[iy+1] += ( da_r * x[ix+1] + da_i * x[ix] ) ;
|
||||
#else
|
||||
y[iy] += ( da_r * x[ix] + da_i * x[ix+1] ) ;
|
||||
y[iy+1] -= ( da_r * x[ix+1] - da_i * x[ix] ) ;
|
||||
#endif
|
||||
ix += inc_x ;
|
||||
iy += inc_y ;
|
||||
i++ ;
|
||||
|
||||
}
|
||||
return(0);
|
||||
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue