/* Generic implementation of the CSHIFT intrinsic
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright 2003, 2005 Free Software Foundation, Inc.
Contributed by Feng Wang <wf_cs@yahoo.com>
This file is part of the GNU Fortran 95 runtime library (libgfortran).
Libgfortran is free software; you can redistribute it and/or
-modify it under the terms of the GNU Lesser General Public
+modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
-version 2.1 of the License, or (at your option) any later version.
-
-Ligbfor is distributed in the hope that it will be useful,
+version 2 of the License, or (at your option) any later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file. (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+Libgfortran 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 Lesser General Public License for more details.
+GNU General Public License for more details.
-You should have received a copy of the GNU Lesser General Public
-License along with libgfor; see the file COPYING.LIB. If not,
-write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+You should have received a copy of the GNU General Public
+License along with libgfortran; see the file COPYING. If not,
+write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include "config.h"
#include <stdlib.h>
DEF_COPY_LOOP(long, long)
DEF_COPY_LOOP(double, double)
DEF_COPY_LOOP(ldouble, long double)
+DEF_COPY_LOOP(cfloat, _Complex float)
+DEF_COPY_LOOP(cdouble, _Complex double)
static void
cshift0 (gfc_array_char * ret, const gfc_array_char * array,
- ssize_t shift, int which)
+ ssize_t shift, int which, index_type size)
{
/* r.* indicates the return array. */
- index_type rstride[GFC_MAX_DIMENSIONS - 1];
+ index_type rstride[GFC_MAX_DIMENSIONS];
index_type rstride0;
index_type roffset;
char *rptr;
/* s.* indicates the source array. */
- index_type sstride[GFC_MAX_DIMENSIONS - 1];
+ index_type sstride[GFC_MAX_DIMENSIONS];
index_type sstride0;
index_type soffset;
const char *sptr;
- index_type count[GFC_MAX_DIMENSIONS - 1];
- index_type extent[GFC_MAX_DIMENSIONS - 1];
+ index_type count[GFC_MAX_DIMENSIONS];
+ index_type extent[GFC_MAX_DIMENSIONS];
index_type dim;
- index_type size;
index_type len;
index_type n;
+ int whichloop;
if (which < 1 || which > GFC_DESCRIPTOR_RANK (array))
runtime_error ("Argument 'DIM' is out of range in call to 'CSHIFT'");
- size = GFC_DESCRIPTOR_SIZE (ret);
-
which = which - 1;
extent[0] = 1;
count[0] = 0;
- size = GFC_DESCRIPTOR_SIZE (array);
n = 0;
+ /* The values assigned here must match the cases in the inner loop. */
+ whichloop = 0;
+ switch (GFC_DESCRIPTOR_TYPE (array))
+ {
+ case GFC_DTYPE_LOGICAL:
+ case GFC_DTYPE_INTEGER:
+ case GFC_DTYPE_REAL:
+ if (size == sizeof (int))
+ whichloop = 1;
+ else if (size == sizeof (long))
+ whichloop = 2;
+ else if (size == sizeof (double))
+ whichloop = 3;
+ else if (size == sizeof (long double))
+ whichloop = 4;
+ break;
+
+ case GFC_DTYPE_COMPLEX:
+ if (size == sizeof (_Complex float))
+ whichloop = 5;
+ else if (size == sizeof (_Complex double))
+ whichloop = 6;
+ break;
+
+ default:
+ break;
+ }
+
/* Initialized for avoiding compiler warnings. */
roffset = size;
soffset = size;
int i;
ret->data = internal_malloc_size (size * size0 ((array_t *)array));
- ret->base = 0;
+ ret->offset = 0;
ret->dtype = array->dtype;
for (i = 0; i < GFC_DESCRIPTOR_RANK (array); i++)
{
/* Otherwise, we'll have to perform the copy one element at
a time. We can speed this up a tad for common cases of
fundamental types. */
- if (size == sizeof(int))
- copy_loop_int (rptr, sptr, roffset, soffset, len, shift);
- else if (size == sizeof(long))
- copy_loop_long (rptr, sptr, roffset, soffset, len, shift);
- else if (size == sizeof(double))
- copy_loop_double (rptr, sptr, roffset, soffset, len, shift);
- else if (size == sizeof(long double))
- copy_loop_ldouble (rptr, sptr, roffset, soffset, len, shift);
- else
+ switch (whichloop)
{
- char *dest = rptr;
- const char *src = &sptr[shift * soffset];
-
- for (n = 0; n < len - shift; n++)
- {
- memcpy (dest, src, size);
- dest += roffset;
- src += soffset;
- }
- for (src = sptr, n = 0; n < shift; n++)
- {
- memcpy (dest, src, size);
- dest += roffset;
- src += soffset;
- }
+ case 0:
+ {
+ char *dest = rptr;
+ const char *src = &sptr[shift * soffset];
+
+ for (n = 0; n < len - shift; n++)
+ {
+ memcpy (dest, src, size);
+ dest += roffset;
+ src += soffset;
+ }
+ for (src = sptr, n = 0; n < shift; n++)
+ {
+ memcpy (dest, src, size);
+ dest += roffset;
+ src += soffset;
+ }
+ }
+ break;
+
+ case 1:
+ copy_loop_int (rptr, sptr, roffset, soffset, len, shift);
+ break;
+
+ case 2:
+ copy_loop_long (rptr, sptr, roffset, soffset, len, shift);
+ break;
+
+ case 3:
+ copy_loop_double (rptr, sptr, roffset, soffset, len, shift);
+ break;
+
+ case 4:
+ copy_loop_ldouble (rptr, sptr, roffset, soffset, len, shift);
+ break;
+
+ case 5:
+ copy_loop_cfloat (rptr, sptr, roffset, soffset, len, shift);
+ break;
+
+ case 6:
+ copy_loop_cdouble (rptr, sptr, roffset, soffset, len, shift);
+ break;
+
+ default:
+ abort ();
}
}
}
}
-
-extern void cshift0_4 (gfc_array_char *, const gfc_array_char *,
- const GFC_INTEGER_4 *, const GFC_INTEGER_4 *);
-export_proto(cshift0_4);
-
-void
-cshift0_4 (gfc_array_char *ret, const gfc_array_char *array,
- const GFC_INTEGER_4 *pshift, const GFC_INTEGER_4 *pdim)
-{
- cshift0 (ret, array, *pshift, pdim ? *pdim : 1);
-}
-
-extern void cshift0_8 (gfc_array_char *, const gfc_array_char *,
- const GFC_INTEGER_8 *, const GFC_INTEGER_8 *);
-export_proto(cshift0_8);
-
-void
-cshift0_8 (gfc_array_char *ret, const gfc_array_char *array,
- const GFC_INTEGER_8 *pshift, const GFC_INTEGER_8 *pdim)
-{
- cshift0 (ret, array, *pshift, pdim ? *pdim : 1);
-}
+#define DEFINE_CSHIFT(N) \
+ extern void cshift0_##N (gfc_array_char *, const gfc_array_char *, \
+ const GFC_INTEGER_##N *, const GFC_INTEGER_##N *); \
+ export_proto(cshift0_##N); \
+ \
+ void \
+ cshift0_##N (gfc_array_char *ret, const gfc_array_char *array, \
+ const GFC_INTEGER_##N *pshift, const GFC_INTEGER_##N *pdim) \
+ { \
+ cshift0 (ret, array, *pshift, pdim ? *pdim : 1, \
+ GFC_DESCRIPTOR_SIZE (array)); \
+ } \
+ \
+ extern void cshift0_##N##_char (gfc_array_char *, GFC_INTEGER_4, \
+ const gfc_array_char *, \
+ const GFC_INTEGER_##N *, \
+ const GFC_INTEGER_##N *, GFC_INTEGER_4); \
+ export_proto(cshift0_##N##_char); \
+ \
+ void \
+ cshift0_##N##_char (gfc_array_char *ret, \
+ GFC_INTEGER_4 ret_length __attribute__((unused)), \
+ const gfc_array_char *array, \
+ const GFC_INTEGER_##N *pshift, \
+ const GFC_INTEGER_##N *pdim, \
+ GFC_INTEGER_4 array_length) \
+ { \
+ cshift0 (ret, array, *pshift, pdim ? *pdim : 1, array_length); \
+ }
+
+DEFINE_CSHIFT (1);
+DEFINE_CSHIFT (2);
+DEFINE_CSHIFT (4);
+DEFINE_CSHIFT (8);