re PR tree-optimization/17016 (ICE with struct passed as reference)

	PR tree-optimization/17016
	* tree-ssa-loop-niter.c (number_of_iterations_cond,
	number_of_iterations_exit): Use POINTER_TYPE_P instead
	of testing for POINTER_TYPE.

From-SVN: r86517

gcc/ChangeLog

 2004-08-24  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
 
+	PR tree-optimization/17016
+	* tree-ssa-loop-niter.c (number_of_iterations_cond,
+	number_of_iterations_exit): Use POINTER_TYPE_P instead
+	of testing for POINTER_TYPE.
+
+2004-08-24  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
+
 	* tree-ssa-loop-ivcanon.c: New file.
 	* tree-ssa-loop-manip.c (create_iv): New function.
 	* Makefile.in (tree-ssa-loop-ivcanon.o): Add.

gcc/tree-ssa-loop-niter.c

@@ -171,7 +171,7 @@ number_of_iterations_cond (tree type, tree base0, tree step0,
 	return;
     }
 
-  if (TREE_CODE (type) == POINTER_TYPE)
+  if (POINTER_TYPE_P (type))
     {
       /* We assume pointer arithmetic never overflows.  */
       mmin = mmax = NULL_TREE;
@@ -653,7 +653,7 @@ number_of_iterations_exit (struct loop *loop, edge exit,
   type = TREE_TYPE (op0);
 
   if (TREE_CODE (type) != INTEGER_TYPE
-    && TREE_CODE (type) != POINTER_TYPE)
+      && !POINTER_TYPE_P (type))
     return false;
      
   if (!simple_iv (loop, stmt, op0, &base0, &step0))