--- old/src/hotspot/os_cpu/windows_x86/os_windows_x86.hpp	2020-07-17 15:30:47.740861188 -0700
+++ new/src/hotspot/os_cpu/windows_x86/os_windows_x86.hpp	2020-07-17 15:30:47.552861179 -0700
@@ -59,6 +59,7 @@
 
   static void setup_fpu();
   static bool supports_sse() { return true; }
+  static juint cpu_microcode_revision();
 
   static jlong rdtsc();