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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 "common.h"
#ifdef FUNCTION_PROFILE
#include "functable.h"
#endif
#ifdef XDOUBLE
#define ERROR_NAME "XTRTI2"
#elif defined(DOUBLE)
#define ERROR_NAME "ZTRTI2"
#else
#define ERROR_NAME "CTRTI2"
#endif
static blasint (*trti2[])(blas_arg_t *, BLASLONG *, BLASLONG *, FLOAT *, FLOAT *, BLASLONG) = {
#ifdef XDOUBLE
xtrti2_UU, xtrti2_UN, xtrti2_LU, xtrti2_LN,
#elif defined(DOUBLE)
ztrti2_UU, ztrti2_UN, ztrti2_LU, ztrti2_LN,
#else
ctrti2_UU, ctrti2_UN, ctrti2_LU, ctrti2_LN,
#endif
};
int NAME(char *UPLO, char *DIAG, blasint *N, FLOAT *a, blasint *ldA, blasint *Info){
blas_arg_t args;
blasint uplo_arg = *UPLO;
blasint diag_arg = *DIAG;
blasint uplo, diag;
blasint info;
FLOAT *buffer;
#ifdef PPC440
extern
#endif
FLOAT *sa, *sb;
PRINT_DEBUG_NAME;
args.n = *N;
args.a = (void *)a;
args.lda = *ldA;
TOUPPER(uplo_arg);
TOUPPER(diag_arg);
uplo = -1;
if (uplo_arg == 'U') uplo = 0;
if (uplo_arg == 'L') uplo = 1;
diag = -1;
if (diag_arg == 'U') diag = 0;
if (diag_arg == 'N') diag = 1;
info = 0;
if (args.lda < MAX(1,args.n)) info = 5;
if (args.n < 0) info = 3;
if (diag < 0) info = 2;
if (uplo < 0) info = 1;
if (info) {
BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
*Info = - info;
return 0;
}
*Info = 0;
if (args.n <= 0) return 0;
IDEBUG_START;
FUNCTION_PROFILE_START();
#ifndef PPC440
buffer = (FLOAT *)blas_memory_alloc(1);
sa = (FLOAT *)((BLASLONG)buffer + GEMM_OFFSET_A);
sb = (FLOAT *)(((BLASLONG)sa + ((GEMM_P * GEMM_Q * COMPSIZE * SIZE + GEMM_ALIGN) & ~GEMM_ALIGN)) + GEMM_OFFSET_B);
#endif
info = (trti2[(uplo << 1) | diag])(&args, NULL, NULL, sa, sb, 0);
*Info = info;
#ifndef PPC440
blas_memory_free(buffer);
#endif
FUNCTION_PROFILE_END(1, .5 * args.n * args.n,
2. * args.n * (1./3. + args.n * ( 1./2. + args.n * 1./6.))
+ 6. * args.n * (1./3. + args.n * (-1./2. + args.n * 1./6.)));
IDEBUG_END;
return 0;
}
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