Add instruction tags to saved ICData (debug mode only).

runtime/vm/object.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/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 12192 matching lines @@
   StoreNonPointer(&raw_ptr()->deopt_id_, value);
 }
 
 
 void ICData::set_ic_data_array(const Array& value) const {
   ASSERT(!value.IsNull());
   StorePointer(&raw_ptr()->ic_data_, value.raw());
 }
 
 
+#if defined(TAG_IC_DATA)
+void ICData::set_tag(intptr_t value) const {
+  StoreNonPointer(&raw_ptr()->tag_, value);
+}
+#endif
+
 intptr_t ICData::NumArgsTested() const {
   return NumArgsTestedBits::decode(raw_ptr()->state_bits_);
 }
 
 
 void ICData::SetNumArgsTested(intptr_t value) const {
   ASSERT(Utils::IsUint(2, value));
   StoreNonPointer(&raw_ptr()->state_bits_,
                   NumArgsTestedBits::update(value, raw_ptr()->state_bits_));
 }
@@ skipping 560 matching lines @@
                                       ICData::InstanceSize(),
                                       Heap::kOld);
     NoSafepointScope no_safepoint;
     result ^= raw;
   }
   result.set_owner(owner);
   result.set_target_name(target_name);
   result.set_arguments_descriptor(arguments_descriptor);
   result.set_deopt_id(deopt_id);
   result.set_state_bits(0);
+#if defined(TAG_IC_DATA)
+  result.set_tag(-1);
+#endif
   result.SetNumArgsTested(num_args_tested);
   return result.raw();
 }
 
 
 RawICData* ICData::New() {
   ICData& result = ICData::Handle();
   {
     // IC data objects are long living objects, allocate them in old generation.
     RawObject* raw = Object::Allocate(ICData::kClassId,
                                       ICData::InstanceSize(),
                                       Heap::kOld);
     NoSafepointScope no_safepoint;
     result ^= raw;
   }
   result.set_deopt_id(Thread::kNoDeoptId);
   result.set_state_bits(0);
+#if defined(TAG_IC_DATA)
+  result.set_tag(-1);
+#endif
   return result.raw();
 }
 
 
 RawICData* ICData::New(const Function& owner,
                        const String& target_name,
                        const Array& arguments_descriptor,
                        intptr_t deopt_id,
                        intptr_t num_args_tested) {
   Zone* zone = Thread::Current()->zone();
@@ skipping 9042 matching lines @@
   return UserTag::null();
 }
 
 
 const char* UserTag::ToCString() const {
   const String& tag_label = String::Handle(label());
   return tag_label.ToCString();
 }
 
 }  // namespace dart