--- old/src/hotspot/cpu/ppc/vm_version_ppc.cpp 2017-10-13 18:21:38.080634248 -0400 +++ new/src/hotspot/cpu/ppc/vm_version_ppc.cpp 2017-10-13 18:21:37.661691615 -0400 @@ -149,8 +149,7 @@ print_features(); } - // PPC64 supports 8-byte compare-exchange operations (see - // Atomic::cmpxchg and StubGenerator::generate_atomic_cmpxchg_ptr) + // PPC64 supports 8-byte compare-exchange operations (see Atomic::cmpxchg) // and 'atomic long memory ops' (see Unsafe_GetLongVolatile). _supports_cx8 = true;