re PR tree-optimization/32527 (ICE in build2_stat, at tree.c:3074)

2007-07-30  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32527
        * tree-affine.h (aff_tree): The type of rest is sizetype for types
        of pointers.
        * tree-affine.c (aff_combination_scale): If type is a pointer type,
        use sizetype for rest.
        (aff_combination_add_elt): Likewise. Don't specialize pointer types.
        (aff_combination_convert): Don't convert rest for pointer types.

From-SVN: r127058

gcc/ChangeLog

+2007-07-30  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	PR tree-opt/32527
+	* tree-affine.h (aff_tree): The type of rest is sizetype for types
+	of pointers.
+	* tree-affine.c (aff_combination_scale): If type is a pointer type,
+	use sizetype for rest.
+	(aff_combination_add_elt): Likewise. Don't specialize pointer types.
+	(aff_combination_convert): Don't convert rest for pointer types.
+
 2007-07-28  Daniel Berlin  <dberlin@dberlin.org>
 
 	* Makefile.in (tree-ssa-alias.o): Add alloc-pool.h

gcc/tree-affine.c

@@ -110,6 +110,9 @@ aff_combination_scale (aff_tree *comb, double_int scale)
 
   if (comb->rest)
     {
+      tree type = comb->type;
+      if (POINTER_TYPE_P (type))
+	type = sizetype;
       if (comb->n < MAX_AFF_ELTS)
 	{
 	  comb->elts[comb->n].coef = scale;
@@ -118,8 +121,8 @@ aff_combination_scale (aff_tree *comb, double_int scale)
 	  comb->n++;
 	}
       else
-	comb->rest = fold_build2 (MULT_EXPR, comb->type, comb->rest, 
-				  double_int_to_tree (comb->type, scale));
+	comb->rest = fold_build2 (MULT_EXPR, type, comb->rest, 
+				  double_int_to_tree (type, scale));
     }
 }
 
@@ -181,14 +184,8 @@ aff_combination_add_elt (aff_tree *comb, tree elt, double_int scale)
 		       double_int_to_tree (type, scale)); 
 
   if (comb->rest)
-    {
-      if (POINTER_TYPE_P (comb->type))
-	comb->rest = fold_build2 (POINTER_PLUS_EXPR, comb->type,
-				  comb->rest, elt);
-      else
-	comb->rest = fold_build2 (PLUS_EXPR, comb->type, comb->rest,
-				  elt);
-    }
+    comb->rest = fold_build2 (PLUS_EXPR, type, comb->rest,
+			      elt);
   else
     comb->rest = elt;
 }
@@ -231,7 +228,7 @@ aff_combination_convert (aff_tree *comb, tree type)
     }
 
   comb->type = type;
-  if (comb->rest)
+  if (comb->rest && !POINTER_TYPE_P (type))
     comb->rest = fold_convert (type, comb->rest);
 
   if (TYPE_PRECISION (type) == TYPE_PRECISION (comb_type))

gcc/tree-affine.h

@@ -53,7 +53,8 @@ typedef struct affine_tree_combination
   struct aff_comb_elt elts[MAX_AFF_ELTS];
 
   /* Remainder of the expression.  Usually NULL, used only if there are more
-     than MAX_AFF_ELTS elements.  Type of REST must be TYPE.  */
+     than MAX_AFF_ELTS elements.  Type of REST will be either sizetype for 
+     TYPE of POINTER_TYPEs or TYPE.  */
   tree rest;
 } aff_tree;