tree-vect-generic.c (expand_vector_condition): Avoid uninitialized variable warning.

gcc/

	* tree-vect-generic.c (expand_vector_condition): Avoid
	uninitialized variable warning.

From-SVN: r229274

gcc/ChangeLog

+2015-10-23  Ilya Enkovich  <enkovich.gnu@gmail.com>
+
+	* tree-vect-generic.c (expand_vector_condition): Avoid
+	uninitialized variable warning.
+
 2015-10-23  Jeff Law  <law@redhat.com>
 
 	* passes.c (execute_function_todo): Do not call flush_ssaname_freelist

gcc/tree-vect-generic.c

@@ -844,7 +844,7 @@ expand_vector_condition (gimple_stmt_iterator *gsi)
   tree type = gimple_expr_type (stmt);
   tree a = gimple_assign_rhs1 (stmt);
   tree a1 = a;
-  tree a2;
+  tree a2 = NULL_TREE;
   bool a_is_comparison = false;
   tree b = gimple_assign_rhs2 (stmt);
   tree c = gimple_assign_rhs3 (stmt);