PR c/29380

[pf3gnuchains/gcc-fork.git] / gcc / tree-chrec.h

diff --git a/gcc/tree-chrec.h b/gcc/tree-chrec.h
index 55f6e97..bc5c778 100644 (file)
--- a/gcc/tree-chrec.h
+++ b/gcc/tree-chrec.h
@@ -69,7 +69,6 @@ extern tree chrec_fold_minus (tree, tree, tree);
 extern tree chrec_fold_multiply (tree, tree, tree);
 extern tree chrec_convert (tree, tree, tree);
 extern tree chrec_convert_aggressive (tree, tree);
-extern tree chrec_type (tree);
 
 /* Operations.  */
 extern tree chrec_apply (unsigned, tree, tree);
@@ -106,6 +105,8 @@ build_polynomial_chrec (unsigned loop_num,
       || right == chrec_dont_know)
     return chrec_dont_know;
 
+  gcc_assert (TREE_TYPE (left) == TREE_TYPE (right));
+
   return build3 (POLYNOMIAL_CHREC, TREE_TYPE (left), 
                 build_int_cst (NULL_TREE, loop_num), left, right);
 }
@@ -208,4 +209,16 @@ no_evolution_in_loop_p (tree chrec, unsigned loop_num, bool *res)
   return true;
 }
 
+/* Returns the type of the chrec.  */
+
+static inline tree
+chrec_type (tree chrec)
+{
+  if (automatically_generated_chrec_p (chrec))
+    return NULL_TREE;
+
+  return TREE_TYPE (chrec);
+}
+
+
 #endif  /* GCC_TREE_CHREC_H  */