re PR middle-end/50609 (FAIL: gcc.c-torture/execute/pr23135.c compilation, -O2 -flto (ICE))

2011-10-05  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/50609
	* gimple-fold.c (fold_array_ctor_reference): Also handle
	vector typed constructors.
	(fold_ctor_reference): Dispatch to fold_array_ctor_reference
	for vector typed constructors.

From-SVN: r179540

gcc/ChangeLog

+2011-10-05  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/50609
+	* gimple-fold.c (fold_array_ctor_reference): Also handle
+	vector typed constructors.
+	(fold_ctor_reference): Dispatch to fold_array_ctor_reference
+	for vector typed constructors.
+
 2011-10-05  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.c (ix86_emit_binop): New static function.

gcc/gimple-fold.c

@@ -2747,10 +2747,12 @@ fold_array_ctor_reference (tree type, tree ctor,
   double_int low_bound, elt_size;
   double_int index, max_index;
   double_int access_index;
-  tree domain_type = TYPE_DOMAIN (TREE_TYPE (ctor));
+  tree domain_type = NULL_TREE;
   HOST_WIDE_INT inner_offset;
 
   /* Compute low bound and elt size.  */
+  if (TREE_CODE (TREE_TYPE (ctor)) == ARRAY_TYPE)
+    domain_type = TYPE_DOMAIN (TREE_TYPE (ctor));
   if (domain_type && TYPE_MIN_VALUE (domain_type))
     {
       /* Static constructors for variably sized objects makes no sense.  */
@@ -2917,7 +2919,8 @@ fold_ctor_reference (tree type, tree ctor, unsigned HOST_WIDE_INT offset,
   if (TREE_CODE (ctor) == CONSTRUCTOR)
     {
 
-      if (TREE_CODE (TREE_TYPE (ctor)) == ARRAY_TYPE)
+      if (TREE_CODE (TREE_TYPE (ctor)) == ARRAY_TYPE
+	  || TREE_CODE (TREE_TYPE (ctor)) == VECTOR_TYPE)
 	return fold_array_ctor_reference (type, ctor, offset, size);
       else
 	return fold_nonarray_ctor_reference (type, ctor, offset, size);