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/*
* Copyright (c) 2003 Matteo Frigo
* Copyright (c) 2003 Massachusetts Institute of Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* $Id: problem.c,v 1.1 2008/10/17 06:11:08 scuri Exp $ */
#include "dft.h"
#include <stddef.h>
static void destroy(problem *ego_)
{
problem_dft *ego = (problem_dft *) ego_;
X(tensor_destroy2)(ego->vecsz, ego->sz);
X(ifree)(ego_);
}
static void hash(const problem *p_, md5 *m)
{
const problem_dft *p = (const problem_dft *) p_;
X(md5puts)(m, "dft");
X(md5int)(m, p->ri == p->ro);
X(md5ptrdiff)(m, p->ii - p->ri);
X(md5ptrdiff)(m, p->io - p->ro);
X(md5int)(m, X(alignment_of)(p->ri));
X(md5int)(m, X(alignment_of)(p->ii));
X(md5int)(m, X(alignment_of)(p->ro));
X(md5int)(m, X(alignment_of)(p->io));
X(tensor_md5)(m, p->sz);
X(tensor_md5)(m, p->vecsz);
}
static void print(problem *ego_, printer *p)
{
const problem_dft *ego = (const problem_dft *) ego_;
p->print(p, "(dft %d %d %d %td %td %T %T)",
ego->ri == ego->ro,
X(alignment_of)(ego->ri),
X(alignment_of)(ego->ro),
ego->ii - ego->ri,
ego->io - ego->ro,
ego->sz,
ego->vecsz);
}
static void zero(const problem *ego_)
{
const problem_dft *ego = (const problem_dft *) ego_;
tensor *sz = X(tensor_append)(ego->vecsz, ego->sz);
X(dft_zerotens)(sz, UNTAINT(ego->ri), UNTAINT(ego->ii));
X(tensor_destroy)(sz);
}
static const problem_adt padt =
{
hash,
zero,
print,
destroy
};
int X(problem_dft_p)(const problem *p)
{
return (p->adt == &padt);
}
problem *X(mkproblem_dft)(const tensor *sz, const tensor *vecsz,
R *ri, R *ii, R *ro, R *io)
{
problem_dft *ego =
(problem_dft *)X(mkproblem)(sizeof(problem_dft), &padt);
A((ri == ro) == (ii == io)); /* both in place or both out of place */
A(X(tensor_kosherp)(sz));
A(X(tensor_kosherp)(vecsz));
/* enforce pointer equality if untainted pointers are equal */
if (UNTAINT(ri) == UNTAINT(ro))
ri = ro = JOIN_TAINT(ri, ro);
if (UNTAINT(ii) == UNTAINT(io))
ii = io = JOIN_TAINT(ii, io);
/* more correctness conditions: */
A(TAINTOF(ri) == TAINTOF(ii));
A(TAINTOF(ro) == TAINTOF(io));
ego->sz = X(tensor_compress)(sz);
ego->vecsz = X(tensor_compress_contiguous)(vecsz);
ego->ri = ri;
ego->ii = ii;
ego->ro = ro;
ego->io = io;
A(FINITE_RNK(ego->sz->rnk));
return &(ego->super);
}
/* Same as X(mkproblem_dft), but also destroy input tensors. */
problem *X(mkproblem_dft_d)(tensor *sz, tensor *vecsz,
R *ri, R *ii, R *ro, R *io)
{
problem *p;
p = X(mkproblem_dft)(sz, vecsz, ri, ii, ro, io);
X(tensor_destroy2)(vecsz, sz);
return p;
}
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