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Diffstat (limited to 'libgfortran/generated/eoshift3_16.c')
| -rw-r--r-- | libgfortran/generated/eoshift3_16.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/libgfortran/generated/eoshift3_16.c b/libgfortran/generated/eoshift3_16.c new file mode 100644 index 00000000000..d03c1c7f1c9 --- /dev/null +++ b/libgfortran/generated/eoshift3_16.c @@ -0,0 +1,273 @@ +/* Implementation of the EOSHIFT intrinsic + Copyright 2002, 2005 Free Software Foundation, Inc. + Contributed by Paul Brook <paul@nowt.org> + +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 General Public +License as published by the Free Software Foundation; either +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 General Public License for more details. + +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> +#include <assert.h> +#include <string.h> +#include "libgfortran.h" + +#if defined (HAVE_GFC_INTEGER_16) + +static void +eoshift3 (gfc_array_char *ret, const gfc_array_char *array, const gfc_array_i16 *h, + const gfc_array_char *bound, const GFC_INTEGER_16 *pwhich, + index_type size, char filler) +{ + /* r.* indicates the return array. */ + index_type rstride[GFC_MAX_DIMENSIONS]; + index_type rstride0; + index_type roffset; + char *rptr; + char *dest; + /* s.* indicates the source array. */ + index_type sstride[GFC_MAX_DIMENSIONS]; + index_type sstride0; + index_type soffset; + const char *sptr; + const char *src; + /* h.* indicates the shift array. */ + index_type hstride[GFC_MAX_DIMENSIONS]; + index_type hstride0; + const GFC_INTEGER_16 *hptr; + /* b.* indicates the bound array. */ + index_type bstride[GFC_MAX_DIMENSIONS]; + index_type bstride0; + const char *bptr; + + index_type count[GFC_MAX_DIMENSIONS]; + index_type extent[GFC_MAX_DIMENSIONS]; + index_type dim; + index_type len; + index_type n; + int which; + GFC_INTEGER_16 sh; + GFC_INTEGER_16 delta; + + /* The compiler cannot figure out that these are set, initialize + them to avoid warnings. */ + len = 0; + soffset = 0; + roffset = 0; + + if (pwhich) + which = *pwhich - 1; + else + which = 0; + + if (ret->data == NULL) + { + int i; + + ret->data = internal_malloc_size (size * size0 ((array_t *)array)); + ret->offset = 0; + ret->dtype = array->dtype; + for (i = 0; i < GFC_DESCRIPTOR_RANK (array); i++) + { + ret->dim[i].lbound = 0; + ret->dim[i].ubound = array->dim[i].ubound - array->dim[i].lbound; + + if (i == 0) + ret->dim[i].stride = 1; + else + ret->dim[i].stride = (ret->dim[i-1].ubound + 1) * ret->dim[i-1].stride; + } + } + + + extent[0] = 1; + count[0] = 0; + n = 0; + for (dim = 0; dim < GFC_DESCRIPTOR_RANK (array); dim++) + { + if (dim == which) + { + roffset = ret->dim[dim].stride * size; + if (roffset == 0) + roffset = size; + soffset = array->dim[dim].stride * size; + if (soffset == 0) + soffset = size; + len = array->dim[dim].ubound + 1 - array->dim[dim].lbound; + } + else + { + count[n] = 0; + extent[n] = array->dim[dim].ubound + 1 - array->dim[dim].lbound; + rstride[n] = ret->dim[dim].stride * size; + sstride[n] = array->dim[dim].stride * size; + + hstride[n] = h->dim[n].stride; + if (bound) + bstride[n] = bound->dim[n].stride * size; + else + bstride[n] = 0; + n++; + } + } + if (sstride[0] == 0) + sstride[0] = size; + if (rstride[0] == 0) + rstride[0] = size; + if (hstride[0] == 0) + hstride[0] = 1; + if (bound && bstride[0] == 0) + bstride[0] = size; + + dim = GFC_DESCRIPTOR_RANK (array); + rstride0 = rstride[0]; + sstride0 = sstride[0]; + hstride0 = hstride[0]; + bstride0 = bstride[0]; + rptr = ret->data; + sptr = array->data; + hptr = h->data; + if (bound) + bptr = bound->data; + else + bptr = NULL; + + while (rptr) + { + /* Do the shift for this dimension. */ + sh = *hptr; + if (( sh >= 0 ? sh : -sh ) > len) + { + delta = len; + sh = len; + } + else + delta = (sh >= 0) ? sh: -sh; + + if (sh > 0) + { + src = &sptr[delta * soffset]; + dest = rptr; + } + else + { + src = sptr; + dest = &rptr[delta * roffset]; + } + for (n = 0; n < len - delta; n++) + { + memcpy (dest, src, size); + dest += roffset; + src += soffset; + } + if (sh < 0) + dest = rptr; + n = delta; + + if (bptr) + while (n--) + { + memcpy (dest, bptr, size); + dest += roffset; + } + else + while (n--) + { + memset (dest, filler, size); + dest += roffset; + } + + /* Advance to the next section. */ + rptr += rstride0; + sptr += sstride0; + hptr += hstride0; + bptr += bstride0; + count[0]++; + n = 0; + while (count[n] == extent[n]) + { + /* When we get to the end of a dimension, reset it and increment + the next dimension. */ + count[n] = 0; + /* We could precalculate these products, but this is a less + frequently used path so proabably not worth it. */ + rptr -= rstride[n] * extent[n]; + sptr -= sstride[n] * extent[n]; + hptr -= hstride[n] * extent[n]; + bptr -= bstride[n] * extent[n]; + n++; + if (n >= dim - 1) + { + /* Break out of the loop. */ + rptr = NULL; + break; + } + else + { + count[n]++; + rptr += rstride[n]; + sptr += sstride[n]; + hptr += hstride[n]; + bptr += bstride[n]; + } + } + } +} + +extern void eoshift3_16 (gfc_array_char *, const gfc_array_char *, + const gfc_array_i16 *, const gfc_array_char *, + const GFC_INTEGER_16 *); +export_proto(eoshift3_16); + +void +eoshift3_16 (gfc_array_char *ret, const gfc_array_char *array, + const gfc_array_i16 *h, const gfc_array_char *bound, + const GFC_INTEGER_16 *pwhich) +{ + eoshift3 (ret, array, h, bound, pwhich, GFC_DESCRIPTOR_SIZE (array), 0); +} + +extern void eoshift3_16_char (gfc_array_char *, GFC_INTEGER_4, + const gfc_array_char *, + const gfc_array_i16 *, + const gfc_array_char *, + const GFC_INTEGER_16 *, GFC_INTEGER_4, + GFC_INTEGER_4); +export_proto(eoshift3_16_char); + +void +eoshift3_16_char (gfc_array_char *ret, + GFC_INTEGER_4 ret_length __attribute__((unused)), + const gfc_array_char *array, const gfc_array_i16 *h, + const gfc_array_char *bound, + const GFC_INTEGER_16 *pwhich, + GFC_INTEGER_4 array_length, + GFC_INTEGER_4 bound_length + __attribute__((unused))) +{ + eoshift3 (ret, array, h, bound, pwhich, array_length, ' '); +} + +#endif |