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, 71 insertions, 0 deletions

diff --git a/libgfortran/m4/dotprod.m4 b/libgfortran/m4/dotprod.m4
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+++ b/libgfortran/m4/dotprod.m4
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+`/* Implementation of the DOT_PRODUCT 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"'
+include(types.m4)dnl
+define(rtype_code, regexp(file, `_\([ir][0-9]+\)\.', `\1'))dnl
+define(rtype_letter,substr(rtype_code, 0, 1))dnl
+define(rtype_kind, substr(rtype_code, 1))dnl
+define(rtype,get_arraytype(rtype_letter,rtype_kind))dnl
+define(rtype_name, get_typename(rtype_letter, rtype_kind))dnl
+
+typedef GFC_ARRAY_DESCRIPTOR(GFC_MAX_DIMENSIONS, char) char_array;
+
+/* Both parameters will already have been converted to the result type.  */
+rtype_name
+`__dot_product_'rtype_code (rtype * a, rtype * b)
+{
+  rtype_name *pa;
+  rtype_name *pb;
+  rtype_name res;
+  index_type count;
+  index_type astride;
+  index_type bstride;
+
+  assert (GFC_DESCRIPTOR_RANK (a) == 1
+          && GFC_DESCRIPTOR_RANK (b) == 1);
+
+  if (a->dim[0].stride == 0)
+    a->dim[0].stride = 1;
+  if (b->dim[0].stride == 0)
+    b->dim[0].stride = 1;
+
+  astride = a->dim[0].stride;
+  bstride = b->dim[0].stride;
+  count = a->dim[0].ubound + 1 - a->dim[0].lbound;
+  res = 0;
+  pa = a->data;
+  pb = b->data;
+sinclude(`dotprod_asm_'rtype_code`.m4')dnl
+
+  while (count--)
+    {
+      res += *pa * *pb;
+      pa += astride;
+      pb += bstride;
+    }
+
+  return res;
+}
+