Scevs could be expressions without chrecs and still be scev_analyzable_p.

2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>

	* sese.h (scev_analyzable_p): Scevs could be expressions without
	chrecs and still be scev_analyzable_p.

From-SVN: r163144

gcc/ChangeLog

 2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
 
+	* sese.h (scev_analyzable_p): Scevs could be expressions without
+	chrecs and still be scev_analyzable_p.
+
+2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
+
 	* params.def (PARAM_SCEV_MAX_EXPR_SIZE): Bump the value to 100.
 
 2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>

gcc/ChangeLog.graphite

 2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>
 
+	* sese.h (scev_analyzable_p): Scevs could be expressions without
+	chrecs and still be scev_analyzable_p.
+
+2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>
+
 	* params.def (PARAM_SCEV_MAX_EXPR_SIZE): Bump the value to 100.
 
 2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>

gcc/sese.h

@@ -398,7 +398,8 @@ scev_analyzable_p (tree def, sese region)
 
   return !chrec_contains_undetermined (scev)
     && TREE_CODE (scev) != SSA_NAME
-    && evolution_function_is_affine_p (scev);
+    && (tree_does_not_contain_chrecs (scev)
+	|| evolution_function_is_affine_p (scev));
 }
 
 #endif