src/hotspot/cpu/ppc/relocInfo_ppc.hpp

*** 38,11 ***
  #ifndef _LP64
      format_width       =  0
  #else
      // Except narrow oops in 64-bits VM.
      // Must be at least 2 for ZGC GC barrier patching.
!     format_width       =  2
  #endif
    };
  
   public:
  
--- 38,12 ---
  #ifndef _LP64
      format_width       =  0
  #else
      // Except narrow oops in 64-bits VM.
      // Must be at least 2 for ZGC GC barrier patching.
!     // Must be at least 3 for Shenandoah GC barrier patching.
+     format_width       =  3
  #endif
    };
  
   public: