JDK-8374852: fix macro expansion for OpaqueCheck

src/hotspot/share/opto/macro.cpp

@@ -2555,6 +2555,7 @@ void PhaseMacroExpand::eliminate_opaque_looplimit_macro_nodes() {
 #ifdef ASSERT
         _igvn.replace_node(n, n->in(1));
 #else
+        bool is_positive = n->as_OpaqueCheck()->is_positive();
         _igvn.replace_node(n, _igvn.intcon(is_positive?1:0));
 #endif
         success = true;