matmul.m4, [...]: Allocate space if return value has NULL in its data field.

2004-09-09  Victor Leikehman  <lei@il.ibm.com>

	* m4/matmul.m4, m4/matmull.m4, intrinsics/eoshift0.c,
	intrinsics/eoshift2.c, intrinsics/transpose_generic.c:
	Allocate space if return value has NULL in its data field.
	* generated/*.c: Regenerate.

From-SVN: r85717

1 files changed, 31 insertions, 1 deletions

diff --git a/libgfortran/m4/matmul.m4 b/libgfortran/m4/matmul.m4
index 26b241d..7a54b05 100644
--- a/libgfortran/m4/matmul.m4
+++ b/libgfortran/m4/matmul.m4
@@ -2,7 +2,7 @@
    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).
+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 Lesser General Public
@@ -52,6 +52,36 @@ void
 
   assert (GFC_DESCRIPTOR_RANK (a) == 2
           || GFC_DESCRIPTOR_RANK (b) == 2);
+
+  if (retarray->data == NULL)
+    {
+      if (GFC_DESCRIPTOR_RANK (a) == 1)
+        {
+          retarray->dim[0].lbound = 0;
+          retarray->dim[0].ubound = b->dim[1].ubound - b->dim[1].lbound;
+          retarray->dim[0].stride = 1;
+        }
+      else if (GFC_DESCRIPTOR_RANK (b) == 1)
+        {
+          retarray->dim[0].lbound = 0;
+          retarray->dim[0].ubound = a->dim[0].ubound - a->dim[0].lbound;
+          retarray->dim[0].stride = 1;
+        }
+      else
+        {
+          retarray->dim[0].lbound = 0;
+          retarray->dim[0].ubound = a->dim[0].ubound - a->dim[0].lbound;
+          retarray->dim[0].stride = 1;
+          
+          retarray->dim[1].lbound = 0;
+          retarray->dim[1].ubound = b->dim[1].ubound - b->dim[1].lbound;
+          retarray->dim[1].stride = retarray->dim[0].ubound+1;
+        }
+          
+      retarray->data = internal_malloc (sizeof (rtype_name) * size0 (retarray));
+      retarray->base = 0;
+    }
+
   abase = a->data;
   bbase = b->data;
   dest = retarray->data;