tree-cfg.c (verify_gimple_assign_single): Implement verification for COND_EXPR rhs.

2010-05-30  Richard Guenther  <rguenther@suse.de>

	* tree-cfg.c (verify_gimple_assign_single): Implement
	verification for COND_EXPR rhs.

From-SVN: r160055

gcc/ChangeLog

+2010-05-30  Richard Guenther  <rguenther@suse.de>
+
+	* tree-cfg.c (verify_gimple_assign_single): Implement
+	verification for COND_EXPR rhs.
+
 2010-05-30  Jan Hubicka  <jh@suse.cz>
 
 	* cgraph.h (cgraph_dump_file): Declare.

gcc/tree-cfg.c

@@ -3608,6 +3608,20 @@ verify_gimple_assign_single (gimple stmt)
       return res;
 
     case COND_EXPR:
+      if (!is_gimple_reg (lhs)
+	  || (!is_gimple_reg (TREE_OPERAND (rhs1, 0))
+	      && !COMPARISON_CLASS_P (TREE_OPERAND (rhs1, 0)))
+	  || (!is_gimple_reg (TREE_OPERAND (rhs1, 1))
+	      && !is_gimple_min_invariant (TREE_OPERAND (rhs1, 1)))
+	  || (!is_gimple_reg (TREE_OPERAND (rhs1, 2))
+	      && !is_gimple_min_invariant (TREE_OPERAND (rhs1, 2))))
+	{
+	  error ("invalid COND_EXPR in gimple assignment");
+	  debug_generic_stmt (rhs1);
+	  return true;
+	}
+      return res;
+
     case CONSTRUCTOR:
     case OBJ_TYPE_REF:
     case ASSERT_EXPR: