/* Implementation of the EOSHIFT intrinsic
- Copyright (C) 2002-2013 Free Software Foundation, Inc.
+ Copyright (C) 2002-2020 Free Software Foundation, Inc.
Contributed by Paul Brook <paul@nowt.org>
This file is part of the GNU Fortran runtime library (libgfortran).
<http://www.gnu.org/licenses/>. */
#include "libgfortran.h"
-#include <stdlib.h>
-#include <assert.h>
#include <string.h>
arraysize = size0 ((array_t *) array);
if (ret->base_addr == NULL)
{
- int i;
-
ret->offset = 0;
- ret->dtype = array->dtype;
- for (i = 0; i < GFC_DESCRIPTOR_RANK (array); i++)
+ GFC_DTYPE_COPY(ret,array);
+ for (index_type i = 0; i < GFC_DESCRIPTOR_RANK (array); i++)
{
index_type ub, str;
GFC_DIMENSION_SET(ret->dim[i], 0, ub, str);
}
- /* xmalloc allocates a single byte for zero size. */
- ret->base_addr = xmalloc (size * arraysize);
+ /* xmallocarray allocates a single byte for zero size. */
+ ret->base_addr = xmallocarray (arraysize, size);
}
else if (unlikely (compile_options.bounds_check))
src = sptr;
dest = &rptr[delta * roffset];
}
- for (n = 0; n < len - delta; n++)
- {
- memcpy (dest, src, size);
- dest += roffset;
- src += soffset;
- }
+
+ /* If the elements are contiguous, perform a single block move. */
+ if (soffset == size && roffset == size)
+ {
+ size_t chunk = size * (len - delta);
+ memcpy (dest, src, chunk);
+ dest += chunk;
+ }
+ else
+ {
+ for (n = 0; n < len - delta; n++)
+ {
+ memcpy (dest, src, size);
+ dest += roffset;
+ src += soffset;
+ }
+ }
if (sh < 0)
dest = rptr;
n = delta;