Equality compare should record two arguments in IC data. INline double equality comparison.

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 64 matching lines @@
 
 
 void FlowGraphPrinter::PrintComputation(Computation* comp) {
   char str[1000];
   BufferFormatter f(str, sizeof(str));
   comp->PrintTo(&f);
   OS::Print("%s", str);
 }
 
 
+static void PrintICData(BufferFormatter* f, const ICData& ic_data) {
+  f->Print(" IC[%d: ", ic_data.NumberOfChecks());
+  Function& target = Function::Handle();
+  for (intptr_t i = 0; i < ic_data.NumberOfChecks(); i++) {
+    GrowableArray<intptr_t> class_ids;
+    ic_data.GetCheckAt(i, &class_ids, &target);
+    if (i > 0) {
+      f->Print(" | ");
+    }
+    for (intptr_t k = 0; k < class_ids.length(); k++) {
+      if (k > 0) {
+        f->Print(", ");
+      }
+      const Class& cls =
+          Class::Handle(Isolate::Current()->class_table()->At(class_ids[k]));
+      f->Print("%s", String::Handle(cls.Name()).ToCString());
+    }
+  }
+  f->Print("]");
+}
+
+
 void Computation::PrintTo(BufferFormatter* f) const {
-  f->Print("%s(", DebugName());
+  f->Print("%s:%d(", DebugName(), cid());
   PrintOperandsTo(f);
   f->Print(")");
+  if (HasICData()) {
+    PrintICData(f, *ic_data());
+  }
 }
 
 
 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);
   }
 }
 
@@ skipping 40 matching lines @@
     f->Print(", ");
     ArgumentAt(i)->PrintTo(f);
   }
 }
 
 
 void PolymorphicInstanceCallComp::PrintTo(BufferFormatter* f) const {
   f->Print("%s(", DebugName());
   instance_call()->PrintOperandsTo(f);
   f->Print(") ");
-  intptr_t len = HasICData() ? ic_data()->NumberOfChecks() : 0;
-  f->Print("[%d: ", len);
-  for (intptr_t i = 0; i < len; i++) {
-    intptr_t class_id = ic_data()->GetReceiverClassIdAt(i);
-    const Class& cls =
-        Class::Handle(Isolate::Current()->class_table()->At(class_id));
-    if (i > 0) {
-      f->Print(", ");
-    }
-    f->Print("%s", cls.ToCString());
+  if (HasICData()) {
+    PrintICData(f, *ic_data());
   }
-  f->Print("]");
 }
 
 void StrictCompareComp::PrintOperandsTo(BufferFormatter* f) const {
   f->Print("%s, ", Token::Str(kind()));
   left()->PrintTo(f);
   f->Print(", ");
   right()->PrintTo(f);
 }
 
 
@@ skipping 525 matching lines @@
     if (i > 0) f->Print(", ");
     values_[i]->PrintTo(f);
     if ((i < locations_.length()) && !locations_[i].IsInvalid()) {
       f->Print(" [%s]", locations_[i].Name());
     }
   }
   f->Print(" }");
 }
 
 }  // namespace dart