--- old/src/share/vm/opto/ifg.cpp	2017-07-02 11:30:44.000000000 +0200
+++ new/src/share/vm/opto/ifg.cpp	2017-07-02 11:30:44.000000000 +0200
@@ -48,7 +48,7 @@
   _adjs = (IndexSet*)_arena->Amalloc(sizeof(IndexSet)*maxlrg);
   // Also make empty live range structures
   _lrgs = (LRG *)_arena->Amalloc( maxlrg * sizeof(LRG) );
-  memset(_lrgs,0,sizeof(LRG)*maxlrg);
+  memset((void*)_lrgs,0,sizeof(LRG)*maxlrg);
   // Init all to empty
   for( uint i = 0; i < maxlrg; i++ ) {
     _adjs[i].initialize(maxlrg);