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

runtime/vm/code_patcher_ia32.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_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/assembler.h"
 #include "vm/code_patcher.h"
 #include "vm/cpu.h"
@@ skipping 241 matching lines @@
 RawICData* CodePatcher::GetInstanceCallIcDataAt(uword return_address) {
   InstanceCall call(return_address);
   return call.ic_data();
 }
 
 
 intptr_t CodePatcher::InstanceCallSizeInBytes() {
   return DartCallPattern::kNumInstructions * DartCallPattern::kInstructionSize;
 }
 
+
+RawArray* CodePatcher::GetTypeTestArray(uword instruction_address) {
+  Array& result = Array::Handle();
+  uint32_t* target_addr = reinterpret_cast<uint32_t*>(instruction_address + 1);
+  result ^= reinterpret_cast<RawObject*>(*target_addr);
+  return result.raw();
+}
+
+
+void CodePatcher::SetTypeTestArray(uword instruction_address,
+                                   const Array& value) {
+  uint32_t* target_addr = reinterpret_cast<uint32_t*>(instruction_address + 1);
+  *target_addr = reinterpret_cast<uint32_t>(value.raw());
+}
+
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32