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, 129 insertions, 0 deletions

diff --git a/libgfortran/generated/count_4_l4.c b/libgfortran/generated/count_4_l4.c
new file mode 100644
index 00000000000..959c8b8a371
--- /dev/null
+++ b/libgfortran/generated/count_4_l4.c
@@ -0,0 +1,129 @@
+/* Implementation of the COUNT intrinsic
+   Copyright 2002 Free Software Foundation, Inc.
+   Contributed by Paul Brook <paul@nowt.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfor).
+
+Libgfortran 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.
+
+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.
+
+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 <stdlib.h>
+#include <assert.h>
+#include "libgfortran.h"
+
+
+void
+__count_4_l4 (gfc_array_i4 * retarray, gfc_array_l4 *array, index_type *pdim)
+{
+  index_type count[GFC_MAX_DIMENSIONS - 1];
+  index_type extent[GFC_MAX_DIMENSIONS - 1];
+  index_type sstride[GFC_MAX_DIMENSIONS - 1];
+  index_type dstride[GFC_MAX_DIMENSIONS - 1];
+  GFC_LOGICAL_4 *base;
+  GFC_INTEGER_4 *dest;
+  index_type rank;
+  index_type n;
+  index_type len;
+  index_type delta;
+  index_type dim;
+
+  /* Make dim zero based to avoid confusion.  */
+  dim = (*pdim) - 1;
+  rank = GFC_DESCRIPTOR_RANK (array) - 1;
+  assert (rank == GFC_DESCRIPTOR_RANK (retarray));
+  if (array->dim[0].stride == 0)
+    array->dim[0].stride = 1;
+  if (retarray->dim[0].stride == 0)
+    retarray->dim[0].stride = 1;
+
+  len = array->dim[dim].ubound + 1 - array->dim[dim].lbound;
+  delta = array->dim[dim].stride;
+
+  for (n = 0; n < dim; n++)
+    {
+      sstride[n] = array->dim[n].stride;
+      extent[n] = array->dim[n].ubound + 1 - array->dim[n].lbound;
+    }
+  for (n = dim; n < rank; n++)
+    {
+      sstride[n] = array->dim[n + 1].stride;
+      extent[n] =
+        array->dim[n + 1].ubound + 1 - array->dim[n + 1].lbound;
+    }
+
+  for (n = 0; n < rank; n++)
+    {
+      count[n] = 0;
+      dstride[n] = retarray->dim[n].stride;
+      if (extent[n] <= 0)
+        len = 0;
+    }
+
+  base = array->data;
+  dest = retarray->data;
+
+  while (base)
+    {
+      GFC_LOGICAL_4 *src;
+      GFC_INTEGER_4 result;
+      src = base;
+      {
+
+  result = 0;
+        if (len <= 0)
+	  *dest = 0;
+	else
+	  {
+	    for (n = 0; n < len; n++, src += delta)
+	      {
+
+  if (*src)
+    result++;
+          }
+	    *dest = result;
+	  }
+      }
+      /* Advance to the next element.  */
+      count[0]++;
+      base += sstride[0];
+      dest += dstride[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.  */
+          base -= sstride[n] * extent[n];
+          dest -= dstride[n] * extent[n];
+          n++;
+          if (n == rank)
+            {
+              /* Break out of the look.  */
+              base = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              base += sstride[n];
+              dest += dstride[n];
+            }
+        }
+    }
+}
+