diff --git a/src/ppc/interface-descriptors-ppc.cc b/src/ppc/interface-descriptors-ppc.cc
index 48b6cdc..6426316 100644
--- a/src/ppc/interface-descriptors-ppc.cc
+++ b/src/ppc/interface-descriptors-ppc.cc
@@ -46,16 +46,11 @@
 const Register StoreGlobalViaContextDescriptor::ValueRegister() { return r3; }
 
 
-const Register InstanceOfDescriptor::LeftRegister() { return r4; }
-const Register InstanceOfDescriptor::RightRegister() { return r3; }
-
-
 const Register StringCompareDescriptor::LeftRegister() { return r4; }
 const Register StringCompareDescriptor::RightRegister() { return r3; }
 
-
-const Register ApiGetterDescriptor::function_address() { return r5; }
-
+const Register ApiGetterDescriptor::HolderRegister() { return r3; }
+const Register ApiGetterDescriptor::CallbackRegister() { return r6; }
 
 const Register MathPowTaggedDescriptor::exponent() { return r5; }
 
@@ -68,6 +63,8 @@
 const Register GrowArrayElementsDescriptor::ObjectRegister() { return r3; }
 const Register GrowArrayElementsDescriptor::KeyRegister() { return r6; }
 
+const Register HasPropertyDescriptor::ObjectRegister() { return r3; }
+const Register HasPropertyDescriptor::KeyRegister() { return r6; }
 
 void FastNewClosureDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
@@ -244,13 +241,16 @@
 SIMD128_TYPES(SIMD128_ALLOC_DESC)
 #undef SIMD128_ALLOC_DESC
 
-void AllocateInNewSpaceDescriptor::InitializePlatformSpecific(
+void ArrayNoArgumentConstructorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {r3};
+  // register state
+  // r3 -- number of arguments
+  // r4 -- function
+  // r5 -- allocation site with elements kind
+  Register registers[] = {r4, r5, r3};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
-
 void ArrayConstructorConstantArgCountDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // register state
@@ -314,6 +314,11 @@
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void CountOpDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {r4};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
 
 void StringAddDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
@@ -374,9 +379,8 @@
 void InterpreterDispatchDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
-      kInterpreterAccumulatorRegister, kInterpreterRegisterFileRegister,
-      kInterpreterBytecodeOffsetRegister, kInterpreterBytecodeArrayRegister,
-      kInterpreterDispatchTableRegister};
+  kInterpreterAccumulatorRegister, kInterpreterBytecodeOffsetRegister,
+  kInterpreterBytecodeArrayRegister, kInterpreterDispatchTableRegister};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
@@ -410,6 +414,16 @@
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
+
+void ResumeGeneratorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {
+      r3,  // the value to pass to the generator
+      r4,  // the JSGeneratorObject to resume
+      r5   // the resume mode (tagged)
+  };
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
 }  // namespace internal
 }  // namespace v8