X87: Provide call counts for constructor calls, surface them as a vector IC.

src/x87/interface-descriptors-x87.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_X87
 
 #include "src/interface-descriptors.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 176 matching lines @@
 }
 
 
 void CallFunctionWithFeedbackAndVectorDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {edi, edx, ebx};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 
-void CallConstructDescriptor::InitializePlatformSpecific(
+void ConstructDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // eax : number of arguments
   // ebx : feedback vector
-  // ecx : new target (for IsSuperConstructorCall)
   // edx : slot in feedback vector (Smi, for RecordCallTarget)
   // edi : constructor function
   // 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[] = {eax, edi, ecx, ebx};
+  Register registers[] = {eax, edi, edx, ebx};
   data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
 }
 
 
 void CallTrampolineDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // eax : number of arguments
   // edi : the target to call
   Register registers[] = {edi, eax};
   data->InitializePlatformSpecific(arraysize(registers), registers);
@@ skipping 232 matching lines @@
       ecx,  // address of first argument (argv)
       ebx   // the runtime function to call
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87