--- a/hotspot/src/cpu/ppc/vm/macroAssembler_ppc.cpp	Wed Feb 15 22:19:13 2017 -0500
+++ b/hotspot/src/cpu/ppc/vm/macroAssembler_ppc.cpp	Thu Feb 16 10:41:19 2017 -0800
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2017 SAP SE. All rights reserved.
+ * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2016 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
@@ -3033,34 +3033,6 @@
   stbx(R0, Rtmp, Robj);
 }
 
-// Kills R31 if value is a volatile register.
-void MacroAssembler::resolve_jobject(Register value, Register tmp1, Register tmp2, bool needs_frame) {
-  Label done;
-  cmpdi(CCR0, value, 0);
-  beq(CCR0, done);         // Use NULL as-is.
-
-  clrrdi(tmp1, value, JNIHandles::weak_tag_size);
-#if INCLUDE_ALL_GCS
-  if (UseG1GC) { andi_(tmp2, value, JNIHandles::weak_tag_mask); }
-#endif
-  ld(value, 0, tmp1);      // Resolve (untagged) jobject.
-
-#if INCLUDE_ALL_GCS
-  if (UseG1GC) {
-    Label not_weak;
-    beq(CCR0, not_weak);   // Test for jweak tag.
-    verify_oop(value);
-    g1_write_barrier_pre(noreg, // obj
-                         noreg, // offset
-                         value, // pre_val
-                         tmp1, tmp2, needs_frame);
-    bind(not_weak);
-  }
-#endif // INCLUDE_ALL_GCS
-  verify_oop(value);
-  bind(done);
-}
-
 #if INCLUDE_ALL_GCS
 // General G1 pre-barrier generator.
 // Goal: record the previous value if it is not null.
@@ -3122,7 +3094,7 @@
 
   bind(runtime);
 
-  // May need to preserve LR. Also needed if current frame is not compatible with C calling convention.
+  // VM call need frame to access(write) O register.
   if (needs_frame) {
     save_LR_CR(Rtmp1);
     push_frame_reg_args(0, Rtmp2);