Start porting fast typechecks to x64.

runtime/vm/il_printer.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/il_printer.h"
 
 #include "vm/intermediate_language.h"
 #include "vm/os.h"
 
 namespace dart {
@@ skipping 48 matching lines @@
   f->Print("%s(", DebugName());
   PrintOperandsTo(f);
   f->Print(")");
 }
 
 
 void Computation::PrintOperandsTo(BufferFormatter* f) const {
   for (int i = 0; i < InputCount(); ++i) {
     if (i > 0) f->Print(", ");
     if (InputAt(i) != NULL) InputAt(i)->PrintTo(f);
+    OS::Print(")");
   }
 }
 
 
 void UseVal::PrintTo(BufferFormatter* f) const {
   f->Print("t%d", definition()->temp_index());
 }
 
 
 void ConstantVal::PrintTo(BufferFormatter* f) const {
   f->Print("#%s", value().ToCString());
 }
 
 
 void AssertAssignableComp::PrintOperandsTo(BufferFormatter* f) const {
   value()->PrintTo(f);
   f->Print(", %s, '%s'",
             String::Handle(dst_type().Name()).ToCString(),
             dst_name().ToCString());
+  if (instantiator() != NULL) {
+    OS::Print(" (instantiator:");
+    instantiator()->PrintTo(f);
+    OS::Print(")");
+  }
   if (instantiator_type_arguments() != NULL) {
     f->Print(" (instantiator:");
     instantiator_type_arguments()->PrintTo(f);
     f->Print(")");
   }
 }
 
 
 void ClosureCallComp::PrintOperandsTo(BufferFormatter* f) const {
   context()->PrintTo(f);
@@ skipping 77 matching lines @@
   f->Print("%s, ", String::Handle(field().name()).ToCString());
   value()->PrintTo(f);
 }
 
 
 void InstanceOfComp::PrintOperandsTo(BufferFormatter* f) const {
   value()->PrintTo(f);
   f->Print(" %s %s",
             negate_result() ? "ISNOT" : "IS",
             String::Handle(type().Name()).ToCString());
+  if (instantiator() != NULL) {
+    OS::Print(" (instantiator:");
+    instantiator()->PrintTo(f);
+    OS::Print(")");
+  }
   if (type_arguments() != NULL) {
     f->Print(" (type-arg:");
     type_arguments()->PrintTo(f);
   }
 }
 
 
 void AllocateObjectComp::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s", Class::Handle(constructor().owner()).ToCString());
   for (intptr_t i = 0; i < arguments().length(); i++) {
@@ skipping 128 matching lines @@
   f->Print("    %s ", DebugName());
   f->Print("if ");
   value()->PrintTo(f);
   f->Print(" goto (%d, %d)",
             true_successor()->block_id(),
             false_successor()->block_id());
 }
 
 
 }  // namespace dart