VectorICs: New interface descriptor for vector transitioning stores.

src/x64/interface-descriptors-x64.cc

Index: src/x64/interface-descriptors-x64.cc
diff --git a/src/x64/interface-descriptors-x64.cc b/src/x64/interface-descriptors-x64.cc
index a25d5f6f3cb60fccc6238acd0aa2078126c12878..0911254f72095165bda1aaaa48ae369cb8157ea8 100644
--- a/src/x64/interface-descriptors-x64.cc
+++ b/src/x64/interface-descriptors-x64.cc
@@ -31,6 +31,11 @@ const Register VectorStoreICTrampolineDescriptor::SlotRegister() { return rdi; }
 const Register VectorStoreICDescriptor::VectorRegister() { return rbx; }
 
 
+const Register VectorStoreTransitionDescriptor::SlotRegister() { return rdi; }
+const Register VectorStoreTransitionDescriptor::VectorRegister() { return rbx; }
+const Register VectorStoreTransitionDescriptor::MapRegister() { return r11; }
+
+
 const Register StoreTransitionDescriptor::MapRegister() { return rbx; }
 
 
@@ -64,10 +69,10 @@ const Register GrowArrayElementsDescriptor::ObjectRegister() { return rax; }
 const Register GrowArrayElementsDescriptor::KeyRegister() { return rbx; }
 
 
-void StoreTransitionDescriptor::InitializePlatformSpecific(
+void VectorStoreTransitionDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
-  Register registers[] = {ReceiverRegister(), NameRegister(), ValueRegister(),
-                          MapRegister()};
+  Register registers[] = {ReceiverRegister(), NameRegister(),   ValueRegister(),
+                          SlotRegister(),     VectorRegister(), MapRegister()};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }