--- a/src/hotspot/share/runtime/vm_version.cpp	Sat Aug 31 09:18:40 2019 -0700
+++ b/src/hotspot/share/runtime/vm_version.cpp	Fri Aug 30 09:37:41 2019 +0200
@@ -249,9 +249,6 @@
         #define HOTSPOT_BUILD_COMPILER "clang " __VERSION__
     #elif defined(__GNUC__)
         #define HOTSPOT_BUILD_COMPILER "gcc " __VERSION__
-    #elif defined(__IBMCPP__)
-        #define HOTSPOT_BUILD_COMPILER "xlC " XSTR(__IBMCPP__)
-
     #else
       #define HOTSPOT_BUILD_COMPILER "unknown compiler"
     #endif