diff a/src/hotspot/cpu/ppc/vtableStubs_ppc_64.cpp b/src/hotspot/cpu/ppc/vtableStubs_ppc_64.cpp
--- a/src/hotspot/cpu/ppc/vtableStubs_ppc_64.cpp
+++ b/src/hotspot/cpu/ppc/vtableStubs_ppc_64.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2025 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
@@ -42,14 +42,14 @@
 #ifndef PRODUCT
 extern "C" void bad_compiled_vtable_index(JavaThread* thread, oopDesc* receiver, int index);
 #endif
 
 // Used by compiler only; may use only caller saved, non-argument registers.
-VtableStub* VtableStubs::create_vtable_stub(int vtable_index) {
+VtableStub* VtableStubs::create_vtable_stub(int vtable_index, bool caller_is_c1) {
   // Read "A word on VtableStub sizing" in share/code/vtableStubs.hpp for details on stub sizing.
   const int stub_code_length = code_size_limit(true);
-  VtableStub* s = new(stub_code_length) VtableStub(true, vtable_index);
+  VtableStub* s = new(stub_code_length) VtableStub(true, vtable_index, caller_is_c1);
   // Can be null if there is no free space in the code cache.
   if (s == nullptr) {
     return nullptr;
   }
 
@@ -128,14 +128,14 @@
   bookkeeping(masm, tty, s, npe_addr, ame_addr, true, vtable_index, slop_bytes, 0);
 
   return s;
 }
 
-VtableStub* VtableStubs::create_itable_stub(int itable_index) {
+VtableStub* VtableStubs::create_itable_stub(int itable_index, bool caller_is_c1) {
   // Read "A word on VtableStub sizing" in share/code/vtableStubs.hpp for details on stub sizing.
   const int stub_code_length = code_size_limit(false);
-  VtableStub* s = new(stub_code_length) VtableStub(false, itable_index);
+  VtableStub* s = new(stub_code_length) VtableStub(false, itable_index, caller_is_c1);
   // Can be null if there is no free space in the code cache.
   if (s == nullptr) {
     return nullptr;
   }