2005-06-11 Thomas Koenig <Thomas.Koenig@onlinde.de>

	PR libfortran/21333
	* Makefile.am: Add in_pack_c4.c, in_pack_c8.c, in_unpack_c4.c
	and in_unpack_c8.c.
	* Makefile.in: Regenerate.
	* libgfortran.h:  Declare internal_pack_c4, internal_pack_c8,
	internal_unpack_c4 and internal_unpack_c8.
	* m4/in_pack.m4: Use rtype_ccode insteald of rtype_kind
	in function name.
	Use sizeof (rtype_name) as size for memory allocation.
	* m4/in_unpack.m4: Use rtype_ccode insteald of rtype_kind
	in function name.
	Use sizeof (rtype_name) for calculation of sizes for memcpy.
	* runtime/in_pack_generic.c:  For real, integer and logical
	call internal_pack_4 if size==4 and internal_pack_8 if
	size==8.
	For complex, call internal_pack_c4 if size==8 and
	internal_pack_c8 if size==16.
	* runtime/in_unpack_generic.c: For real, integer and logical
        call internal_unpack_4 if size==4 and internal_unpack_8 if
        size==8.
        For complex, call internal_unpack_c4 if size==8 and
        internal_unpack_c8 if size==16.
	* generated/in_pack_i4.c:  Regenerated.
	* generated/in_pack_i8.c:  Regenerated.
	* generated/in_unpack_i4.c:  Regenerated.
	* generated/in_unpack_i8.c:  Regenerated.
	* generated/in_pack_c4.c:  New file.
	* generated/in_pack_c8.c:  New file.
	* generated/in_unpack_c4.c:  New file.
	* generated/in_unpack_c8.c:  New file.

2005-05-11  Thomas Koenig  <Thomas.Koenig@online.de>

	* gfortran.fortran-torture/execute/in-pack.f90:  New test.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@100842 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 123 insertions, 0 deletions

diff --git a/libgfortran/generated/in_pack_c4.c b/libgfortran/generated/in_pack_c4.c
new file mode 100644
index 00000000000..ed3b8ec6ef6
--- /dev/null
+++ b/libgfortran/generated/in_pack_c4.c
@@ -0,0 +1,123 @@
+/* Helper function for repacking arrays.
+   Copyright 2003 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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "config.h"
+#include <stdlib.h>
+#include <assert.h>
+#include "libgfortran.h"
+
+/* Allocates a block of memory with internal_malloc if the array needs
+   repacking.  */
+
+GFC_COMPLEX_4 *
+internal_pack_c4 (gfc_array_c4 * source)
+{
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type stride[GFC_MAX_DIMENSIONS];
+  index_type stride0;
+  index_type dim;
+  index_type ssize;
+  const GFC_COMPLEX_4 *src;
+  GFC_COMPLEX_4 *dest;
+  GFC_COMPLEX_4 *destptr;
+  int n;
+  int packed;
+
+  if (source->dim[0].stride == 0)
+    {
+      source->dim[0].stride = 1;
+      return source->data;
+    }
+
+  dim = GFC_DESCRIPTOR_RANK (source);
+  ssize = 1;
+  packed = 1;
+  for (n = 0; n < dim; n++)
+    {
+      count[n] = 0;
+      stride[n] = source->dim[n].stride;
+      extent[n] = source->dim[n].ubound + 1 - source->dim[n].lbound;
+      if (extent[n] <= 0)
+        {
+          /* Do nothing.  */
+          packed = 1;
+          break;
+        }
+
+      if (ssize != stride[n])
+        packed = 0;
+
+      ssize *= extent[n];
+    }
+
+  if (packed)
+    return source->data;
+
+  /* Allocate storage for the destination.  */
+  destptr = (GFC_COMPLEX_4 *)internal_malloc_size (ssize * sizeof (GFC_COMPLEX_4));
+  dest = destptr;
+  src = source->data;
+  stride0 = stride[0];
+
+
+  while (src)
+    {
+      /* Copy the data.  */
+      *(dest++) = *src;
+      /* Advance to the next element.  */
+      src += stride0;
+      count[0]++;
+      /* Advance to the next source element.  */
+      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.  */
+          src -= stride[n] * extent[n];
+          n++;
+          if (n == dim)
+            {
+              src = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              src += stride[n];
+            }
+        }
+    }
+  return destptr;
+}
+