Serializer: serialize internal references via object visitor.

src/ia32/assembler-ia32-inl.h

Index: src/ia32/assembler-ia32-inl.h
diff --git a/src/ia32/assembler-ia32-inl.h b/src/ia32/assembler-ia32-inl.h
index 521ab4fab4e9f367c91496ff75fff4129b2299d4..20e3cc935fceb33345a385d8d0edb6925e99661d 100644
--- a/src/ia32/assembler-ia32-inl.h
+++ b/src/ia32/assembler-ia32-inl.h
@@ -166,9 +166,9 @@ Address RelocInfo::target_internal_reference() {
 }
 
 
-void RelocInfo::set_target_internal_reference(Address target) {
+Address RelocInfo::target_internal_reference_address() {
   DCHECK(rmode_ == INTERNAL_REFERENCE);
-  Memory::Address_at(pc_) = target;
+  return reinterpret_cast<Address>(pc_);
 }
 
 
@@ -280,7 +280,8 @@ Object** RelocInfo::call_object_address() {
 
 
 void RelocInfo::WipeOut() {
-  if (IsEmbeddedObject(rmode_) || IsExternalReference(rmode_)) {
+  if (IsEmbeddedObject(rmode_) || IsExternalReference(rmode_) ||
+      IsInternalReference(rmode_)) {
     Memory::Address_at(pc_) = NULL;
   } else if (IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_)) {
     // Effectively write zero into the relocation.
@@ -312,7 +313,8 @@ void RelocInfo::Visit(Isolate* isolate, ObjectVisitor* visitor) {
     visitor->VisitCell(this);
   } else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
     visitor->VisitExternalReference(this);
-    CpuFeatures::FlushICache(pc_, sizeof(Address));
+  } else if (mode == RelocInfo::INTERNAL_REFERENCE) {
+    visitor->VisitInternalReference(this);
   } else if (RelocInfo::IsCodeAgeSequence(mode)) {
     visitor->VisitCodeAgeSequence(this);
   } else if (((RelocInfo::IsJSReturn(mode) &&
@@ -339,7 +341,8 @@ void RelocInfo::Visit(Heap* heap) {
     StaticVisitor::VisitCell(heap, this);
   } else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
     StaticVisitor::VisitExternalReference(this);
-    CpuFeatures::FlushICache(pc_, sizeof(Address));
+  } else if (mode == RelocInfo::INTERNAL_REFERENCE) {
+    StaticVisitor::VisitInternalReference(this);
   } else if (RelocInfo::IsCodeAgeSequence(mode)) {
     StaticVisitor::VisitCodeAgeSequence(heap, this);
   } else if (heap->isolate()->debug()->has_break_points() &&
@@ -528,6 +531,12 @@ void Assembler::emit_near_disp(Label* L) {
 }
 
 
+void Assembler::deserialization_set_target_internal_reference_at(
+    Address pc, Address target) {
+  Memory::Address_at(pc) = target;
+}
+
+
 void Operand::set_modrm(int mod, Register rm) {
   DCHECK((mod & -4) == 0);
   buf_[0] = mod << 6 | rm.code();