/*********************************************************************/
/* Copyright 2009, 2010 The University of Texas at Austin. */
/* 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. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
/* AUSTIN ``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 UNIVERSITY OF TEXAS AT */
/* AUSTIN 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. */
/* */
/* The views and conclusions contained in the software and */
/* documentation are those of the authors and should not be */
/* interpreted as representing official policies, either expressed */
/* or implied, of The University of Texas at Austin. */
/*********************************************************************/
#include <stdio.h>
#include <ctype.h>
#include "common.h"
int CNAME(BLASLONG n, BLASLONG k, FLOAT alpha_r, FLOAT alpha_i,
FLOAT *a, BLASLONG lda,
FLOAT *x, BLASLONG incx, FLOAT *y, BLASLONG incy, void *buffer){
BLASLONG i, length;
#ifndef LOWER
BLASLONG offset;
#endif
FLOAT *X = x;
FLOAT *Y = y;
FLOAT *sbmvbuffer = (FLOAT *)buffer;
FLOAT *bufferY = sbmvbuffer;
FLOAT *bufferX = sbmvbuffer;
FLOAT temp[2];
if (incy != 1) {
Y = bufferY;
bufferX = (FLOAT *)(((BLASLONG)bufferY + n * sizeof(FLOAT) * COMPSIZE + 4095) & ~4095);
sbmvbuffer = bufferX;
COPY_K(n, y, incy, Y, 1);
}
if (incx != 1) {
X = bufferX;
sbmvbuffer = (FLOAT *)(((BLASLONG)bufferX + n * sizeof(FLOAT) * COMPSIZE + 4095) & ~4095);
COPY_K(n, x, incx, X, 1);
}
#ifndef LOWER
offset = k;
#endif
for (i = 0; i < n; i++) {
#ifndef HEMVREV
#ifndef LOWER
length = k - offset;
if (length > 0) {
AXPYU_K(length, 0, 0,
alpha_r * X[i * 2 + 0] - alpha_i * X[i * 2 + 1],
alpha_r * X[i * 2 + 1] + alpha_i * X[i * 2 + 0],
a + offset * COMPSIZE, 1, Y + (i - length) * COMPSIZE, 1, NULL, 0);
}
temp[0] = a[k * 2 + 0] * X[i * 2 + 0];
temp[1] = a[k * 2 + 0] * X[i * 2 + 1];
Y[i * 2 + 0] += alpha_r * temp[0] - alpha_i * temp[1];
Y[i * 2 + 1] += alpha_r * temp[1] + alpha_i * temp[0];
if (length > 0) {
FLOAT _Complex result = DOTC_K(length, a + offset * COMPSIZE, 1, X + (i - length) * COMPSIZE, 1);
Y[i * 2 + 0] += alpha_r * CREAL(result) - alpha_i * CIMAG(result);
Y[i * 2 + 1] += alpha_r * CIMAG(result) + alpha_i * CREAL(result);
}
if (offset > 0) offset --;
#else
length = k;
if (n - i - 1 < k) length = n - i - 1;
if (length > 0) {
AXPYU_K(length, 0, 0,
alpha_r * X[i * 2 + 0] - alpha_i * X[i * 2 + 1],
alpha_r * X[i * 2 + 1] + alpha_i * X[i * 2 + 0],
a + COMPSIZE, 1, Y + (i + 1) * COMPSIZE, 1, NULL, 0);
}
temp[0] = a[0] * X[i * 2 + 0];
temp[1] = a[0] * X[i * 2 + 1];
Y[i * 2 + 0] += alpha_r * temp[0] - alpha_i * temp[1];
Y[i * 2 + 1] += alpha_r * temp[1] + alpha_i * temp[0];
if (length > 0) {
FLOAT _Complex result = DOTC_K(length, a + COMPSIZE, 1, X + (i + 1) * COMPSIZE, 1);
Y[i * 2 + 0] += alpha_r * CREAL(result) - alpha_i * CIMAG(result);
Y[i * 2 + 1] += alpha_r * CIMAG(result) + alpha_i * CREAL(result);
}
#endif
#else
#ifndef LOWER
length = k - offset;
if (length > 0) {
AXPYC_K(length, 0, 0,
alpha_r * X[i * 2 + 0] - alpha_i * X[i * 2 + 1],
alpha_r * X[i * 2 + 1] + alpha_i * X[i * 2 + 0],
a + offset * COMPSIZE, 1, Y + (i - length) * COMPSIZE, 1, NULL, 0);
}
temp[0] = a[k * 2 + 0] * X[i * 2 + 0];
temp[1] = a[k * 2 + 0] * X[i * 2 + 1];
Y[i * 2 + 0] += alpha_r * temp[0] - alpha_i * temp[1];
Y[i * 2 + 1] += alpha_r * temp[1] + alpha_i * temp[0];
if (length > 0) {
FLOAT _Complex result = DOTU_K(length, a + offset * COMPSIZE, 1, X + (i - length) * COMPSIZE, 1);
Y[i * 2 + 0] += alpha_r * CREAL(result) - alpha_i * CIMAG(result);
Y[i * 2 + 1] += alpha_r * CIMAG(result) + alpha_i * CREAL(result);
}
if (offset > 0) offset --;
#else
length = k;
if (n - i - 1 < k) length = n - i - 1;
if (length > 0) {
AXPYC_K(length, 0, 0,
alpha_r * X[i * 2 + 0] - alpha_i * X[i * 2 + 1],
alpha_r * X[i * 2 + 1] + alpha_i * X[i * 2 + 0],
a + COMPSIZE, 1, Y + (i + 1) * COMPSIZE, 1, NULL, 0);
}
temp[0] = a[0] * X[i * 2 + 0];
temp[1] = a[0] * X[i * 2 + 1];
Y[i * 2 + 0] += alpha_r * temp[0] - alpha_i * temp[1];
Y[i * 2 + 1] += alpha_r * temp[1] + alpha_i * temp[0];
if (length > 0) {
FLOAT _Complex result = DOTU_K(length, a + COMPSIZE, 1, X + (i + 1) * COMPSIZE, 1);
Y[i * 2 + 0] += alpha_r * CREAL(result) - alpha_i * CIMAG(result);
Y[i * 2 + 1] += alpha_r * CIMAG(result) + alpha_i * CREAL(result);
}
#endif
#endif
a += lda * 2;
}
if (incy != 1) {
COPY_K(n, Y, 1, y, incy);
}
return 0;
}