--- old/src/hotspot/cpu/x86/stubGenerator_x86_32.cpp	2019-11-21 11:54:02.059800595 +0100
+++ new/src/hotspot/cpu/x86/stubGenerator_x86_32.cpp	2019-11-21 11:54:01.855797143 +0100
@@ -430,7 +430,7 @@
 
 
   //----------------------------------------------------------------------------------------------------
-  // Support for int32_t Atomic::xchg(int32_t exchange_value, volatile int32_t* dest)
+  // Support for int32_t Atomic::xchg(volatile int32_t* dest, int32_t exchange_value)
   //
   // xchg exists as far back as 8086, lock needed for MP only
   // Stack layout immediately after call: