src/share/vm/opto/optoreg.hpp

@@ -101,10 +101,14 @@
   static unsigned int reg2stack( OptoReg::Name r) {
     assert( r >= stack0(), " must be");
     return r - stack0();
   }
 
+  static void invalidate(Name n) {
+    vm2opto[n] = Bad;
+  }
+
   // convert a stack slot number into an OptoReg::Name
   static OptoReg::Name stack2reg( int idx) {
     return Name(stack0() + idx);
   }