Convert Linkage to use MachineSignature.

src/compiler/ia32/linkage-ia32.cc

Index: src/compiler/ia32/linkage-ia32.cc
diff --git a/src/compiler/ia32/linkage-ia32.cc b/src/compiler/ia32/linkage-ia32.cc
index 6386e126c6c9beb0d1c88673a83307c635a1fb5a..92cb7827810a981aba2c945165f4d67d49d6e7e8 100644
--- a/src/compiler/ia32/linkage-ia32.cc
+++ b/src/compiler/ia32/linkage-ia32.cc
@@ -14,7 +14,7 @@ namespace v8 {
 namespace internal {
 namespace compiler {
 
-struct LinkageHelperTraits {
+struct IA32LinkageHelperTraits {
   static Register ReturnValueReg() { return eax; }
   static Register ReturnValue2Reg() { return edx; }
   static Register JSCallFunctionReg() { return edi; }
@@ -28,10 +28,10 @@ struct LinkageHelperTraits {
   static int CRegisterParametersLength() { return 0; }
 };
 
+typedef LinkageHelper<IA32LinkageHelperTraits> LH;
 
 CallDescriptor* Linkage::GetJSCallDescriptor(int parameter_count, Zone* zone) {
-  return LinkageHelper::GetJSCallDescriptor<LinkageHelperTraits>(
-      zone, parameter_count);
+  return LH::GetJSCallDescriptor(zone, parameter_count);
 }
 
 
@@ -40,24 +40,22 @@ CallDescriptor* Linkage::GetRuntimeCallDescriptor(Runtime::FunctionId function,
                                                   Operator::Property properties,
                                                   CallDescriptor::Flags flags,
                                                   Zone* zone) {
-  return LinkageHelper::GetRuntimeCallDescriptor<LinkageHelperTraits>(
-      zone, function, parameter_count, properties, flags);
+  return LH::GetRuntimeCallDescriptor(zone, function, parameter_count,
+                                      properties, flags);
 }
 
 
 CallDescriptor* Linkage::GetStubCallDescriptor(
     CodeStubInterfaceDescriptor* descriptor, int stack_parameter_count,
     CallDescriptor::Flags flags, Zone* zone) {
-  return LinkageHelper::GetStubCallDescriptor<LinkageHelperTraits>(
-      zone, descriptor, stack_parameter_count, flags);
+  return LH::GetStubCallDescriptor(zone, descriptor, stack_parameter_count,
+                                   flags);
 }
 
 
-CallDescriptor* Linkage::GetSimplifiedCDescriptor(
-    Zone* zone, int num_params, MachineType return_type,
-    const MachineType* param_types) {
-  return LinkageHelper::GetSimplifiedCDescriptor<LinkageHelperTraits>(
-      zone, num_params, return_type, param_types);
+CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
+                                                  MachineSignature* sig) {
+  return LH::GetSimplifiedCDescriptor(zone, sig);
 }
 
 }  // namespace compiler