src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot.aarch64/src/jdk/vm/ci/hotspot/aarch64/AArch64HotSpotRegisterConfig.java

@@ -194,15 +194,10 @@
     public boolean areAllAllocatableRegistersCallerSaved() {
         return allAllocatableAreCallerSaved;
     }
 
     @Override
-    public Register getRegisterForRole(int index) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
     public CallingConvention getCallingConvention(Type type, JavaType returnType, JavaType[] parameterTypes, ValueKindFactory<?> valueKindFactory) {
         HotSpotCallingConventionType hotspotType = (HotSpotCallingConventionType) type;
         if (type == HotSpotCallingConventionType.NativeCall) {
             return callingConvention(nativeGeneralParameterRegisters, returnType, parameterTypes, hotspotType, valueKindFactory);
         }