PowerPC specific sub-directories

src/ppc/interface-descriptors-ppc.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
+//
+// Copyright IBM Corp. 2012, 2013. All rights reserved.
+//
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
-#if V8_TARGET_ARCH_MIPS
+#if V8_TARGET_ARCH_PPC
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
 
 const Register CallInterfaceDescriptor::ContextRegister() { return cp; }
 
 
-const Register LoadDescriptor::ReceiverRegister() { return a1; }
-const Register LoadDescriptor::NameRegister() { return a2; }
+const Register LoadDescriptor::ReceiverRegister() { return r4; }
+const Register LoadDescriptor::NameRegister() { return r5; }
 
 
-const Register VectorLoadICTrampolineDescriptor::SlotRegister() { return a0; }
+const Register VectorLoadICTrampolineDescriptor::SlotRegister() { return r3; }
 
 
-const Register VectorLoadICDescriptor::VectorRegister() { return a3; }
+const Register VectorLoadICDescriptor::VectorRegister() { return r6; }
 
 
-const Register StoreDescriptor::ReceiverRegister() { return a1; }
-const Register StoreDescriptor::NameRegister() { return a2; }
-const Register StoreDescriptor::ValueRegister() { return a0; }
+const Register StoreDescriptor::ReceiverRegister() { return r4; }
+const Register StoreDescriptor::NameRegister() { return r5; }
+const Register StoreDescriptor::ValueRegister() { return r3; }
 
 
-const Register ElementTransitionAndStoreDescriptor::MapRegister() { return a3; }
+const Register ElementTransitionAndStoreDescriptor::MapRegister() { return r6; }
 
 
-const Register InstanceofDescriptor::left() { return a0; }
-const Register InstanceofDescriptor::right() { return a1; }
+const Register InstanceofDescriptor::left() { return r3; }
+const Register InstanceofDescriptor::right() { return r4; }
 
 
-const Register ArgumentsAccessReadDescriptor::index() { return a1; }
-const Register ArgumentsAccessReadDescriptor::parameter_count() { return a0; }
+const Register ArgumentsAccessReadDescriptor::index() { return r4; }
+const Register ArgumentsAccessReadDescriptor::parameter_count() { return r3; }
 
 
-const Register ApiGetterDescriptor::function_address() { return a2; }
+const Register ApiGetterDescriptor::function_address() { return r5; }
 
-
-const Register MathPowTaggedDescriptor::exponent() { return a2; }
+const Register MathPowTaggedDescriptor::exponent() { return r5; }
 
 
 const Register MathPowIntegerDescriptor::exponent() {
   return MathPowTaggedDescriptor::exponent();
 }
 
 
 void FastNewClosureDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a2};
+  Register registers[] = {cp, r5};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void FastNewContextDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a1};
+  Register registers[] = {cp, r4};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void ToNumberDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a0};
+  Register registers[] = {cp, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void NumberToStringDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a0};
+  Register registers[] = {cp, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void FastCloneShallowArrayDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a3, a2, a1};
+  Register registers[] = {cp, r6, r5, r4};
   Representation representations[] = {
       Representation::Tagged(), Representation::Tagged(), Representation::Smi(),
       Representation::Tagged()};
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void FastCloneShallowObjectDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a3, a2, a1, a0};
+  Register registers[] = {cp, r6, r5, r4, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void CreateAllocationSiteDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a2, a3};
+  Register registers[] = {cp, r5, r6};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void StoreArrayLiteralElementDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a3, a0};
+  Register registers[] = {cp, r6, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void CallFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a1};
+  Register registers[] = {cp, r4};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void CallFunctionWithFeedbackDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a1, a3};
+  Register registers[] = {cp, r4, r6};
   Representation representations[] = {Representation::Tagged(),
                                       Representation::Tagged(),
                                       Representation::Smi()};
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void CallConstructDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  // a0 : number of arguments
-  // a1 : the function to call
-  // a2 : feedback vector
-  // a3 : (only if a2 is not the megamorphic symbol) slot in feedback
+  // r3 : number of arguments
+  // r4 : the function to call
+  // r5 : feedback vector
+  // r6 : (only if r5 is not the megamorphic symbol) slot in feedback
   //      vector (Smi)
   // TODO(turbofan): So far we don't gather type feedback and hence skip the
   // slot parameter, but ArrayConstructStub needs the vector to be undefined.
-  Register registers[] = {cp, a0, a1, a2};
+  Register registers[] = {cp, r3, r4, r5};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void RegExpConstructResultDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a2, a1, a0};
+  Register registers[] = {cp, r5, r4, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void TransitionElementsKindDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a0, a1};
+  Register registers[] = {cp, r3, r4};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void ArrayConstructorConstantArgCountDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
   // register state
   // cp -- context
-  // a0 -- number of arguments
-  // a1 -- function
-  // a2 -- allocation site with elements kind
-  Register registers[] = {cp, a1, a2};
+  // r3 -- number of arguments
+  // r4 -- function
+  // r5 -- allocation site with elements kind
+  Register registers[] = {cp, r4, r5};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void ArrayConstructorDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   // stack param count needs (constructor pointer, and single argument)
-  Register registers[] = {cp, a1, a2, a0};
+  Register registers[] = {cp, r4, r5, r3};
   Representation representations[] = {
       Representation::Tagged(), Representation::Tagged(),
       Representation::Tagged(), Representation::Integer32()};
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void InternalArrayConstructorConstantArgCountDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
   // register state
   // cp -- context
-  // a0 -- number of arguments
-  // a1 -- constructor function
-  Register registers[] = {cp, a1};
+  // r3 -- number of arguments
+  // r4 -- constructor function
+  Register registers[] = {cp, r4};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void InternalArrayConstructorDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
   // stack param count needs (constructor pointer, and single argument)
-  Register registers[] = {cp, a1, a0};
+  Register registers[] = {cp, r4, r3};
   Representation representations[] = {Representation::Tagged(),
                                       Representation::Tagged(),
                                       Representation::Integer32()};
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void CompareNilDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a0};
+  Register registers[] = {cp, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void ToBooleanDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a0};
+  Register registers[] = {cp, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void BinaryOpDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a1, a0};
+  Register registers[] = {cp, r4, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void BinaryOpWithAllocationSiteDescriptor::Initialize(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a2, a1, a0};
+  Register registers[] = {cp, r5, r4, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void StringAddDescriptor::Initialize(CallInterfaceDescriptorData* data) {
-  Register registers[] = {cp, a1, a0};
+  Register registers[] = {cp, r4, r3};
   data->Initialize(arraysize(registers), registers, NULL);
 }
 
 
 void KeyedDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {
       cp,  // context
-      a2,  // key
+      r5,  // key
   };
   Representation representations[] = {
       Representation::Tagged(),  // context
       Representation::Tagged(),  // key
   };
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void NamedDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {
       cp,  // context
-      a2,  // name
+      r5,  // name
   };
   Representation representations[] = {
       Representation::Tagged(),  // context
       Representation::Tagged(),  // name
   };
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void CallHandlerDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {
       cp,  // context
-      a0,  // receiver
+      r3,  // receiver
   };
   Representation representations[] = {
       Representation::Tagged(),  // context
       Representation::Tagged(),  // receiver
   };
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void ArgumentAdaptorDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {
       cp,  // context
-      a1,  // JSFunction
-      a0,  // actual number of arguments
-      a2,  // expected number of arguments
+      r4,  // JSFunction
+      r3,  // actual number of arguments
+      r5,  // expected number of arguments
   };
   Representation representations[] = {
       Representation::Tagged(),     // context
       Representation::Tagged(),     // JSFunction
       Representation::Integer32(),  // actual number of arguments
       Representation::Integer32(),  // expected number of arguments
   };
   data->Initialize(arraysize(registers), registers, representations);
 }
 
 
 void ApiFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {
       cp,  // context
-      a0,  // callee
-      t0,  // call_data
-      a2,  // holder
-      a1,  // api_function_address
+      r3,  // callee
+      r7,  // call_data
+      r5,  // holder
+      r4,  // api_function_address
   };
   Representation representations[] = {
       Representation::Tagged(),    // context
       Representation::Tagged(),    // callee
       Representation::Tagged(),    // call_data
       Representation::Tagged(),    // holder
       Representation::External(),  // api_function_address
   };
   data->Initialize(arraysize(registers), registers, representations);
 }
 }
 }  // namespace v8::internal
 
-#endif  // V8_TARGET_ARCH_MIPS
+#endif  // V8_TARGET_ARCH_PPC