diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/hotspot/cpu/ppc/c2_init_ppc.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/ppc/c2_init_ppc.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2015 SAP SE. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "opto/compile.hpp"
+#include "opto/node.hpp"
+#include "runtime/globals.hpp"
+#include "utilities/debug.hpp"
+
+// processor dependent initialization for ppc
+
+void Compile::pd_compiler2_init() {
+
+  // Power7 and later
+  if (PowerArchitecturePPC64 > 6) {
+    if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {
+      FLAG_SET_ERGO(bool, UsePopCountInstruction, true);
+    }
+  }
+
+  if (PowerArchitecturePPC64 == 6) {
+    if (FLAG_IS_DEFAULT(InsertEndGroupPPC64)) {
+      FLAG_SET_ERGO(bool, InsertEndGroupPPC64, true);
+    }
+  }
+
+  if (!VM_Version::has_isel() && FLAG_IS_DEFAULT(ConditionalMoveLimit)) {
+    FLAG_SET_ERGO(intx, ConditionalMoveLimit, 0);
+  }
+
+  if (OptimizeFill) {
+    warning("OptimizeFill is not supported on this CPU.");
+    FLAG_SET_DEFAULT(OptimizeFill, false);
+  }
+
+}