When checking against non-parametrized types use a cache to hold result tuples (class, result). Tha…

runtime/vm/code_generator_x64.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/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/code_generator.h"
 
 #include "lib/error.h"
@@ skipping 1327 matching lines @@
         __ j(NOT_EQUAL, &runtime_call, Assembler::kNearJump);
         __ PushObject(negate_result ? bool_false : bool_true);
         __ jmp(&done, Assembler::kNearJump);
         __ Bind(&runtime_call);
       }
     }
   }
   __ PushObject(Object::ZoneHandle());  // Make room for the result.
   const Immediate location =
       Immediate(reinterpret_cast<int64_t>(Smi::New(token_index)));
+  const Immediate node_id_as_smi =
+      Immediate(reinterpret_cast<int64_t>(Smi::New(node_id)));
   __ pushq(location);  // Push the source location.
+  __ pushq(node_id_as_smi);
   __ pushq(RAX);  // Push the instance.
   __ PushObject(type);  // Push the type.
   if (!type.IsInstantiated()) {
     GenerateInstantiatorTypeArguments(token_index);
   } else {
     __ pushq(raw_null);  // Null instantiator.
   }
   GenerateCallRuntime(node_id, token_index, kInstanceofRuntimeEntry);
   // Pop the two parameters supplied to the runtime entry. The result of the
   // instanceof runtime call will be left as the result of the operation.
-  __ addq(RSP, Immediate(4 * kWordSize));
+  __ addq(RSP, Immediate(5 * kWordSize));
   if (negate_result) {
     Label negate_done;
     __ popq(RDX);
     __ LoadObject(RAX, bool_true);
     __ cmpq(RDX, RAX);
     __ j(NOT_EQUAL, &negate_done, Assembler::kNearJump);
     __ LoadObject(RAX, bool_false);
     __ Bind(&negate_done);
     __ pushq(RAX);
   }
@@ skipping 1290 matching lines @@
   const Error& error = Error::Handle(
       Parser::FormatError(script, token_index, "Error", format, args));
   va_end(args);
   Isolate::Current()->long_jump_base()->Jump(1, error);
   UNREACHABLE();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64