tree-chrec.h (build_polynomial_chrec): RHS of a chrec should not be of pointer type.

2007-11-13  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-chrec.h (build_polynomial_chrec): RHS of a chrec
	should not be of pointer type.

From-SVN: r130167

gcc/ChangeLog

+2007-11-13  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* tree-chrec.h (build_polynomial_chrec): RHS of a chrec
+	should not be of pointer type.
+
 2007-11-13  Michael Meissner  <michael.meissner@amd.com>
 
 	* config/i386/i386.c (ix86_sse5_valid_op_p): Put type on separate

gcc/tree-chrec.h

@@ -132,6 +132,11 @@ build_polynomial_chrec (unsigned loop_num,
   if (no_evolution_in_loop_p (left, loop_num, &val) && !val)
     return chrec_dont_know;
 
+  /* Pointer types should occur only on the left hand side, i.e. in
+     the base of the chrec, and not in the step.  */
+  gcc_assert (!POINTER_TYPE_P (TREE_TYPE (right)));
+
+  /* Types of left and right sides of a chrec should be compatible.  */
   if (POINTER_TYPE_P (TREE_TYPE (left)))
     gcc_assert (sizetype == TREE_TYPE (right));
   else