--- old/src/hotspot/cpu/ppc/vm_version_ppc.cpp 2018-12-11 06:23:53.601261510 -0600 +++ new/src/hotspot/cpu/ppc/vm_version_ppc.cpp 2018-12-11 06:23:52.991281640 -0600 @@ -134,6 +134,9 @@ if (FLAG_IS_DEFAULT(UseCountTrailingZerosInstructionsPPC64)) { FLAG_SET_ERGO(bool, UseCountTrailingZerosInstructionsPPC64, true); } + if (FLAG_IS_DEFAULT(UseCharacterCompareIntrinsics)) { + FLAG_SET_ERGO(bool, UseCharacterCompareIntrinsics, true); + } } else { if (UseCountTrailingZerosInstructionsPPC64) { warning("UseCountTrailingZerosInstructionsPPC64 specified, but needs at least Power9.");