75 lines
2.2 KiB
Plaintext
75 lines
2.2 KiB
Plaintext
`/* Implementation of the DOT_PRODUCT intrinsic
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Copyright 2002 Free Software Foundation, Inc.
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Contributed by Paul Brook <paul@nowt.org>
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and Feng Wang <fengwang@nudt.edu.cn>
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This file is part of the GNU Fortran 95 runtime library (libgfor).
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Libgfortran is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with libgfor; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "config.h"
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#include <stdlib.h>
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#include <assert.h>
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#include "libgfortran.h"'
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include(types.m4)dnl
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define(rtype_code, regexp(file, `_\(c[0-9]+\)\.', `\1'))dnl
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define(rtype_letter,substr(rtype_code, 0, 1))dnl
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define(rtype_kind, substr(rtype_code, 1))dnl
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define(rtype,get_arraytype(rtype_letter,rtype_kind))dnl
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define(rtype_name, get_typename(rtype_letter, rtype_kind))dnl
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typedef GFC_ARRAY_DESCRIPTOR(GFC_MAX_DIMENSIONS, char) char_array;
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/* Both parameters will already have been converted to the result type. */
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rtype_name
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`__dot_product_'rtype_code (rtype * a, rtype * b)
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{
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rtype_name *pa;
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rtype_name *pb;
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rtype_name res;
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rtype_name conjga;
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index_type count;
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index_type astride;
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index_type bstride;
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assert (GFC_DESCRIPTOR_RANK (a) == 1
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&& GFC_DESCRIPTOR_RANK (b) == 1);
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if (a->dim[0].stride == 0)
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a->dim[0].stride = 1;
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if (b->dim[0].stride == 0)
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b->dim[0].stride = 1;
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astride = a->dim[0].stride;
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bstride = b->dim[0].stride;
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count = a->dim[0].ubound + 1 - a->dim[0].lbound;
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res = 0;
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pa = a->data;
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pb = b->data;
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sinclude(`dotprod_asm_'rtype_code`.m4')dnl
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while (count--)
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{
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COMPLEX_ASSIGN(conjga, REALPART (*pa), -IMAGPART (*pa));
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res += conjga * *pb;
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pa += astride;
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pb += bstride;
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}
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return res;
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}
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