8e1d7686de
2008-03-19 Thomas Koenig <tkoenig@gcc.gnu.org> PR libfortran/32972 * Makefile.am (in_pack_c): Add in_pack_i1.c, in_pack_i2.c, in_pack_r4.c, in_pack_r8.c, in_pack_r10.c and in_pack_r16.c. (in_unpack_c): Add in_unpack_i1.c, in_unpack_i2.c, in_unpack_r4.c, in_unpack_r8.c, in_unpack_r10.c and in_unpack_r16.c. * Makefile.in: Regenerate. * libgfortran.h: Add prototypes for internal_pack_1, internal_pack_2, internal_pack_16, internal_pack_r4, internal_pack_r8, internal_pack_r10, internal_pack_r16, internal_pack_c10 and internal_pack_c16. Add prototypes for internal_unpack_1, internal_unpack_2, internal_unpack_16, internal_unpack_r4, internal_unpack_r8, internal_unpack_r10, internal_unpack_r16, internal_unpack_c10 and internal_unpack_c16. * runtime/in_pack_generic.c (internal_pack): Use sizeof instead of hardwired sizes. Add calls to internal_pack_1, internal_pack_2, internal_pack_16, internal_pack_r4, internal_pack_r8, internal_pack_r10, internal_pack_r16, internal_pack_c10 and internal_pack_c16. * runtime/in_unpack_generic.c (internal_unpack): Use sizeof instead of hardwired sizes. Add calls to internal_unpack_1, internal_unpack_2, internal_unpack_16, internal_unpack_r4, internal_unpack_r8, internal_unpack_r10, internal_unpack_r16, internal_unpack_c10 and internal_unpack_c16. * generated/in_pack_r4.c: New file. * generated/in_pack_i2.c: New file. * generated/in_unpack_i1.c: New file. * generated/in_pack_r10.c: New file. * generated/in_unpack_r4.c: New file. * generated/in_unpack_i2.c: New file. * generated/in_unpack_r16.c: New file. * generated/in_pack_r8.c: New file. * generated/in_unpack_r10.c: New file. * generated/in_unpack_r8.c: New file. * generated/in_pack_r16.c: New file. * generated/in_pack_i1.c: New file. 2008-03-19 Thomas Koenig <tkoenig@gcc.gnu.org> PR libfortran/32972 * gfortran.dg/internal_pack_1.f90: New test case. * gfortran.dg/internal_pack_2.f90: New test case. * gfortran.dg/internal_pack_3.f90: New test case. From-SVN: r133344
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/* Helper function for repacking arrays.
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Copyright 2003, 2006, 2007 Free Software Foundation, Inc.
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Contributed by Paul Brook <paul@nowt.org>
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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., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#include "libgfortran.h"
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#include <stdlib.h>
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#include <assert.h>
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#if defined (HAVE_GFC_INTEGER_2)
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/* Allocates a block of memory with internal_malloc if the array needs
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repacking. */
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GFC_INTEGER_2 *
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internal_pack_2 (gfc_array_i2 * source)
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{
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index_type count[GFC_MAX_DIMENSIONS];
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index_type extent[GFC_MAX_DIMENSIONS];
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index_type stride[GFC_MAX_DIMENSIONS];
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index_type stride0;
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index_type dim;
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index_type ssize;
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const GFC_INTEGER_2 *src;
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GFC_INTEGER_2 *dest;
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GFC_INTEGER_2 *destptr;
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int n;
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int packed;
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/* TODO: Investigate how we can figure out if this is a temporary
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since the stride=0 thing has been removed from the frontend. */
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dim = GFC_DESCRIPTOR_RANK (source);
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ssize = 1;
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packed = 1;
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for (n = 0; n < dim; n++)
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{
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count[n] = 0;
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stride[n] = source->dim[n].stride;
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extent[n] = source->dim[n].ubound + 1 - source->dim[n].lbound;
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if (extent[n] <= 0)
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{
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/* Do nothing. */
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packed = 1;
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break;
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}
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if (ssize != stride[n])
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packed = 0;
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ssize *= extent[n];
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}
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if (packed)
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return source->data;
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/* Allocate storage for the destination. */
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destptr = (GFC_INTEGER_2 *)internal_malloc_size (ssize * sizeof (GFC_INTEGER_2));
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dest = destptr;
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src = source->data;
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stride0 = stride[0];
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while (src)
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{
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/* Copy the data. */
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*(dest++) = *src;
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/* Advance to the next element. */
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src += stride0;
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count[0]++;
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/* Advance to the next source element. */
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n = 0;
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while (count[n] == extent[n])
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{
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/* When we get to the end of a dimension, reset it and increment
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the next dimension. */
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count[n] = 0;
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/* We could precalculate these products, but this is a less
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frequently used path so probably not worth it. */
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src -= stride[n] * extent[n];
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n++;
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if (n == dim)
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{
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src = NULL;
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break;
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}
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else
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{
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count[n]++;
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src += stride[n];
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}
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}
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}
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return destptr;
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}
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#endif
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