587579571d
2005-01-23 James A. Morrison <phython@gcc.gnu.org> Paul Brook <paul@codesourcery.com> PR fortran/19294 * iresolve.c (gfc_resolve_transpose): Resolve to transpose_c4 or transpose_c8 for complex types. libgfortran/ * Makefile.am: Add transpose_c4.c and transpose_c8.c. * intrinsics/cshift0.c: Use separate optimized loops for complex types. * m4/transpose.m4: Include type letter in function name. * Makefile.in: Regenerate. * generated/transpose_*.c: Regenerate. Co-Authored-By: Paul Brook <paul@codesourcery.com> From-SVN: r94116
99 lines
3.1 KiB
C
99 lines
3.1 KiB
C
/* Implementation of the TRANSPOSE intrinsic
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Copyright 2003, 2005 Free Software Foundation, Inc.
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Contributed by Tobias Schlüter
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This file is part of the GNU Fortran 95 runtime library (libgfortran).
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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 General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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In addition to the permissions in the GNU General Public License, the
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Free Software Foundation gives you unlimited permission to link the
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compiled version of this file into combinations with other programs,
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and to distribute those combinations without any restriction coming
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from the use of this file. (The General Public License restrictions
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do apply in other respects; for example, they cover modification of
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the file, and distribution when not linked into a combine
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executable.)
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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 General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with libgfortran; see the file COPYING. 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 <assert.h>
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#include "libgfortran.h"
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extern void transpose_i4 (gfc_array_i4 * ret, gfc_array_i4 * source);
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export_proto(transpose_i4);
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void
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transpose_i4 (gfc_array_i4 * ret, gfc_array_i4 * source)
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{
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/* r.* indicates the return array. */
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index_type rxstride, rystride;
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GFC_INTEGER_4 *rptr;
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/* s.* indicates the source array. */
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index_type sxstride, systride;
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const GFC_INTEGER_4 *sptr;
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index_type xcount, ycount;
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index_type x, y;
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assert (GFC_DESCRIPTOR_RANK (source) == 2);
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if (ret->data == NULL)
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{
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assert (GFC_DESCRIPTOR_RANK (ret) == 2);
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assert (ret->dtype == source->dtype);
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ret->dim[0].lbound = 0;
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ret->dim[0].ubound = source->dim[1].ubound - source->dim[1].lbound;
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ret->dim[0].stride = 1;
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ret->dim[1].lbound = 0;
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ret->dim[1].ubound = source->dim[0].ubound - source->dim[0].lbound;
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ret->dim[1].stride = ret->dim[0].ubound+1;
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ret->data = internal_malloc_size (sizeof (GFC_INTEGER_4) * size0 (ret));
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ret->base = 0;
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}
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if (ret->dim[0].stride == 0)
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ret->dim[0].stride = 1;
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if (source->dim[0].stride == 0)
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source->dim[0].stride = 1;
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sxstride = source->dim[0].stride;
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systride = source->dim[1].stride;
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xcount = source->dim[0].ubound + 1 - source->dim[0].lbound;
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ycount = source->dim[1].ubound + 1 - source->dim[1].lbound;
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rxstride = ret->dim[0].stride;
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rystride = ret->dim[1].stride;
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rptr = ret->data;
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sptr = source->data;
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for (y=0; y < ycount; y++)
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{
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for (x=0; x < xcount; x++)
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{
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*rptr = *sptr;
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sptr += sxstride;
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rptr += rystride;
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}
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sptr += systride - (sxstride * xcount);
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rptr += rxstride - (rystride * xcount);
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}
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}
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