src/cpu/x86/vm/vm_version_x86.cpp

*** 889,899 ****
      if( supports_sse2() && FLAG_IS_DEFAULT(UseNewLongLShift) ) {
        // Use it on new AMD cpus starting from Opteron.
        UseNewLongLShift = true;
      }
      if( FLAG_IS_DEFAULT(UseXmmLoadAndClearUpper) ) {
!       if( supports_sse4a() ) {
          UseXmmLoadAndClearUpper = true; // use movsd only on '10h' Opteron
        } else {
          UseXmmLoadAndClearUpper = false;
        }
      }
--- 889,899 ----
      if( supports_sse2() && FLAG_IS_DEFAULT(UseNewLongLShift) ) {
        // Use it on new AMD cpus starting from Opteron.
        UseNewLongLShift = true;
      }
      if( FLAG_IS_DEFAULT(UseXmmLoadAndClearUpper) ) {
!       if (supports_sse4a()) {
          UseXmmLoadAndClearUpper = true; // use movsd only on '10h' Opteron
        } else {
          UseXmmLoadAndClearUpper = false;
        }
      }