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Import GotoBLAS2 1.13 BSD version codes.

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Xianyi Zhang
2011-01-24 14:54:24 +00:00
commit 342bbc3871
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driver/level2/trsv_L.c Normal file
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/*********************************************************************/
/* 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"
const static FLOAT dm1 = -1.;
#undef GEMV_UNROLL
#define GEMV_UNROLL DTB_ENTRIES
int CNAME(BLASLONG m, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
BLASLONG i, is, min_i;
FLOAT *gemvbuffer = (FLOAT *)buffer;
FLOAT *B = b;
if (incb != 1) {
B = buffer;
gemvbuffer = (FLOAT *)(((BLASLONG)buffer + m * sizeof(FLOAT) + 4095) & ~4095);
COPY_K(m, b, incb, buffer, 1);
}
for (is = 0; is < m; is += GEMV_UNROLL){
min_i = MIN(m - is, GEMV_UNROLL);
#ifdef TRANSA
if (is > 0){
GEMV_T(is, min_i, 0, dm1,
a + is * lda , lda,
B, 1,
B + is, 1, gemvbuffer);
}
#endif
for (i = 0; i < min_i; i++) {
FLOAT *AA = a + is + (i + is) * lda;
FLOAT *BB = B + is;
#ifdef TRANSA
if (i > 0) BB[i] -= DOTU_K(i, AA, 1, BB, 1);
#endif
#ifndef UNIT
BB[i] /= AA[i];
#endif
#ifndef TRANSA
if (i < min_i - 1) {
AXPYU_K(min_i - i - 1 , 0, 0, - BB[i],
AA + i + 1, 1, BB + i + 1, 1, NULL, 0);
}
#endif
}
#ifndef TRANSA
if (m - is > min_i){
GEMV_N(m - is - min_i, min_i, 0, dm1,
a + is + min_i + is * lda, lda,
B + is, 1,
B + (is + min_i), 1, gemvbuffer);
}
#endif
}
if (incb != 1) {
COPY_K(m, buffer, 1, b, incb);
}
return 0;
}