Merge tree-ssa-20020619-branch into mainline.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@81764 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 75 insertions, 0 deletions

diff --git a/libgfortran/m4/transpose.m4 b/libgfortran/m4/transpose.m4
new file mode 100644
index 00000000000..35df64bf347
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+++ b/libgfortran/m4/transpose.m4
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+`/* Implementation of the TRANSPOSE intrinsic
+   Copyright 2003 Free Software Foundation, Inc.
+   Contributed by Tobias Schlüter
+
+This file is part of the GNU Fortran 95 runtime library (libgfor).
+
+Libgfor is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser 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,
+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.
+
+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.  */
+
+#include "config.h"
+#include <assert.h>
+#include "libgfortran.h"'
+include(types.m4)dnl
+define(rtype_kind, regexp(file, `_.\([0-9]+\)\.', `\1'))dnl
+define(rtype_letter, regexp(file, `_\(.\)[0-9]+\.', `\1'))dnl
+define(rtype_code,rtype_letter`'rtype_name)dnl
+define(rtype,get_arraytype(rtype_letter,rtype_kind))dnl
+define(rtype_name, get_typename(rtype_letter, rtype_kind))dnl
+
+void
+`__transpose_'rtype_kind (rtype * ret, rtype * source)
+{
+  /* r.* indicates the return array.  */
+  index_type rxstride, rystride;
+  rtype_name *rptr;
+  /* s.* indicates the source array.  */
+  index_type sxstride, systride;
+  const rtype_name *sptr;
+
+  index_type xcount, ycount;
+  index_type x, y;
+
+  assert (GFC_DESCRIPTOR_RANK (source) == 2);
+
+  if (ret->dim[0].stride == 0)
+    ret->dim[0].stride = 1;
+  if (source->dim[0].stride == 0)
+    source->dim[0].stride = 1;
+
+  sxstride = source->dim[0].stride;
+  systride = source->dim[1].stride;
+  xcount = source->dim[0].ubound + 1 - source->dim[0].lbound;
+  ycount = source->dim[1].ubound + 1 - source->dim[1].lbound;
+
+  rxstride = ret->dim[0].stride;
+  rystride = ret->dim[1].stride;
+
+  rptr = ret->data;
+  sptr = source->data;
+
+  for (y=0; y < ycount; y++)
+    {
+      for (x=0; x < xcount; x++)
+        {
+          *rptr = *sptr;
+
+          sptr += sxstride;
+          rptr += rystride;
+        }
+        sptr += systride - (sxstride * xcount);
+        rptr += rxstride - (rystride * xcount);
+    }
+}