Implementing ConstructorCall. (part I)

runtime/vm/flow_graph_compiler_x64.cc

Index: runtime/vm/flow_graph_compiler_x64.cc
===================================================================
--- runtime/vm/flow_graph_compiler_x64.cc	(revision 5205)
+++ runtime/vm/flow_graph_compiler_x64.cc	(working copy)
@@ -73,11 +73,11 @@
 void FlowGraphCompiler::LoadValue(Value* value) {
   if (value->IsConstant()) {
     ConstantVal* constant = value->AsConstant();
-    if (constant->instance().IsSmi()) {
-      int64_t imm = reinterpret_cast<int64_t>(constant->instance().raw());
+    if (constant->value().IsSmi()) {
+      int64_t imm = reinterpret_cast<int64_t>(constant->value().raw());
       __ movq(RAX, Immediate(imm));
     } else {
-      __ LoadObject(RAX, value->AsConstant()->instance());
+      __ LoadObject(RAX, value->AsConstant()->value());
     }
   } else {
     ASSERT(value->IsTemp());
@@ -335,6 +335,19 @@
 }
 
 
+void FlowGraphCompiler::VisitAllocateObject(AllocateObjectComp* comp) {
+  const Class& cls = Class::ZoneHandle(comp->constructor().owner());
+  const bool requires_type_arguments = cls.HasTypeArguments();
+  const Code& stub = Code::Handle(StubCode::GetAllocationStubForClass(cls));
+  const ExternalLabel label(cls.ToCString(), stub.EntryPoint());
+  GenerateCall(comp->token_index(), &label, PcDescriptors::kOther);
+  if (requires_type_arguments) {
+    __ popq(RCX);  // Discard type arguments.
+    __ popq(RCX);  // Discard instantiator type arguments.
+  }
+}
+
+
 void FlowGraphCompiler::VisitBlocks(
     const GrowableArray<BlockEntryInstr*>& blocks) {
   for (intptr_t i = blocks.length() - 1; i >= 0; --i) {