Add support for IncrementCounter in Hydrogen.

src/hydrogen-instructions.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 430 matching lines @@
   Verify();
 #endif
   return may_overflow;
 }
 
 
 const char* HType::ToString() {
   // Note: The c1visualizer syntax for locals allows only a sequence of the
   // following characters: A-Za-z0-9_-|:
   switch (type_) {
+    case kNone: return "none";
     case kTagged: return "tagged";
     case kTaggedPrimitive: return "primitive";
     case kTaggedNumber: return "number";
     case kSmi: return "smi";
     case kHeapNumber: return "heap-number";
     case kString: return "string";
     case kBoolean: return "boolean";
     case kNonPrimitive: return "non-primitive";
     case kJSArray: return "array";
     case kJSObject: return "object";
@@ skipping 2176 matching lines @@
   return BitCast<int64_t>(roundtrip_value) == BitCast<int64_t>(value);
 }
 
 
 HConstant::HConstant(Handle<Object> handle, Representation r)
   : handle_(handle),
     unique_id_(),
     has_smi_value_(false),
     has_int32_value_(false),
     has_double_value_(false),
+    has_external_reference_value_(false),
     is_internalized_string_(false),
     is_not_in_new_space_(true),
     is_cell_(false),
     boolean_value_(handle->BooleanValue()) {
   set_type(HType::TypeFromValue(handle));
 
   if (handle_->IsHeapObject()) {
     Heap* heap = Handle<HeapObject>::cast(handle)->GetHeap();
     is_not_in_new_space_ = !heap->InNewSpace(*handle);
   }
@@ skipping 15 matching lines @@
 
 
 HConstant::HConstant(Handle<Object> handle,
                      UniqueValueId unique_id,
                      Representation r,
                      HType type,
                      bool is_internalize_string,
                      bool is_not_in_new_space,
                      bool is_cell,
                      bool boolean_value)
-    : handle_(handle),
-      unique_id_(unique_id),
-      has_smi_value_(false),
-      has_int32_value_(false),
-      has_double_value_(false),
-      is_internalized_string_(is_internalize_string),
-      is_not_in_new_space_(is_not_in_new_space),
-      is_cell_(is_cell),
-      boolean_value_(boolean_value) {
+  : handle_(handle),
+    unique_id_(unique_id),
+    has_smi_value_(false),
+    has_int32_value_(false),
+    has_double_value_(false),
+    has_external_reference_value_(false),
+    is_internalized_string_(is_internalize_string),
+    is_not_in_new_space_(is_not_in_new_space),
+    is_cell_(is_cell),
+    boolean_value_(boolean_value) {
   ASSERT(!handle.is_null());
   ASSERT(!type.IsTaggedNumber());
   set_type(type);
   Initialize(r);
 }
 
 
 HConstant::HConstant(int32_t integer_value,
                      Representation r,
                      bool is_not_in_new_space,
                      Handle<Object> optional_handle)
-    : handle_(optional_handle),
-      unique_id_(),
-      has_smi_value_(Smi::IsValid(integer_value)),
-      has_int32_value_(true),
-      has_double_value_(true),
-      is_internalized_string_(false),
-      is_not_in_new_space_(is_not_in_new_space),
-      is_cell_(false),
-      boolean_value_(integer_value != 0),
-      int32_value_(integer_value),
-      double_value_(FastI2D(integer_value)) {
+  : handle_(optional_handle),
+    unique_id_(),
+    has_smi_value_(Smi::IsValid(integer_value)),
+    has_int32_value_(true),
+    has_double_value_(true),
+    has_external_reference_value_(false),
+    is_internalized_string_(false),
+    is_not_in_new_space_(is_not_in_new_space),
+    is_cell_(false),
+    boolean_value_(integer_value != 0),
+    int32_value_(integer_value),
+    double_value_(FastI2D(integer_value)) {
   set_type(has_smi_value_ ? HType::Smi() : HType::TaggedNumber());
   Initialize(r);
 }
 
 
 HConstant::HConstant(double double_value,
                      Representation r,
                      bool is_not_in_new_space,
                      Handle<Object> optional_handle)
-    : handle_(optional_handle),
-      unique_id_(),
-      has_int32_value_(IsInteger32(double_value)),
-      has_double_value_(true),
-      is_internalized_string_(false),
-      is_not_in_new_space_(is_not_in_new_space),
-      is_cell_(false),
-      boolean_value_(double_value != 0 && !std::isnan(double_value)),
-      int32_value_(DoubleToInt32(double_value)),
-      double_value_(double_value) {
+  : handle_(optional_handle),
+    unique_id_(),
+    has_int32_value_(IsInteger32(double_value)),
+    has_double_value_(true),
+    has_external_reference_value_(false),
+    is_internalized_string_(false),
+    is_not_in_new_space_(is_not_in_new_space),
+    is_cell_(false),
+    boolean_value_(double_value != 0 && !std::isnan(double_value)),
+    int32_value_(DoubleToInt32(double_value)),
+    double_value_(double_value) {
   has_smi_value_ = has_int32_value_ && Smi::IsValid(int32_value_);
   set_type(has_smi_value_ ? HType::Smi() : HType::TaggedNumber());
   Initialize(r);
 }
 
 
+HConstant::HConstant(ExternalReference reference)
+  : has_smi_value_(false),
+    has_int32_value_(false),
+    has_double_value_(false),
+    has_external_reference_value_(true),
+    is_internalized_string_(false),
+    is_not_in_new_space_(true),
+    is_cell_(false),
+    boolean_value_(true),
+    external_reference_value_(reference) {
+  set_type(HType::None());
+  Initialize(Representation::External());
+}
+
+
 void HConstant::Initialize(Representation r) {
   if (r.IsNone()) {
     if (has_smi_value_ && kSmiValueSize == 31) {
       r = Representation::Smi();
     } else if (has_int32_value_) {
       r = Representation::Integer32();
     } else if (has_double_value_) {
       r = Representation::Double();
+    } else if (has_external_reference_value_) {
+      r = Representation::External();
     } else {
       r = Representation::Tagged();
     }
   }
   set_representation(r);
   SetFlag(kUseGVN);
 }
 
 
 bool HConstant::EmitAtUses() {
   ASSERT(IsLinked());
   if (block()->graph()->has_osr()) {
     return block()->graph()->IsStandardConstant(this);
   }
   if (IsCell()) return false;
   if (representation().IsDouble()) return false;
   return true;
 }
 
 
 HConstant* HConstant::CopyToRepresentation(Representation r, Zone* zone) const {
   if (r.IsSmi() && !has_smi_value_) return NULL;
   if (r.IsInteger32() && !has_int32_value_) return NULL;
   if (r.IsDouble() && !has_double_value_) return NULL;
+  if (r.IsExternal() && !has_external_reference_value_) return NULL;
   if (has_int32_value_) {
     return new(zone) HConstant(int32_value_, r, is_not_in_new_space_, handle_);
   }
   if (has_double_value_) {
     return new(zone) HConstant(double_value_, r, is_not_in_new_space_, handle_);
   }
+  if (has_external_reference_value_) {
+    return new(zone) HConstant(external_reference_value_);
+  }
   ASSERT(!handle_.is_null());
   return new(zone) HConstant(handle_,
                              unique_id_,
                              r,
                              type_,
                              is_internalized_string_,
                              is_not_in_new_space_,
                              is_cell_,
                              boolean_value_);
 }
@@ skipping 32 matching lines @@
   }
   return Maybe<HConstant*>(res != NULL, res);
 }
 
 
 void HConstant::PrintDataTo(StringStream* stream) {
   if (has_int32_value_) {
     stream->Add("%d ", int32_value_);
   } else if (has_double_value_) {
     stream->Add("%f ", FmtElm(double_value_));
+  } else if (has_external_reference_value_) {
+    stream->Add("%p ", reinterpret_cast<void*>(
+            external_reference_value_.address()));
   } else {
     handle()->ShortPrint(stream);
   }
 }
 
 
 void HBinaryOperation::PrintDataTo(StringStream* stream) {
   left()->PrintNameTo(stream);
   stream->Add(" ");
   right()->PrintNameTo(stream);
@@ skipping 1660 matching lines @@
           ? kChangesBackingStoreFields : kDependsOnBackingStoreFields);
       break;
     case kElementsPointer:
       instr->SetGVNFlag(is_store
           ? kChangesElementsPointer : kDependsOnElementsPointer);
       break;
     case kMaps:
       instr->SetGVNFlag(is_store
           ? kChangesMaps : kDependsOnMaps);
       break;
+    case kExternalMemory:
+      instr->SetGVNFlag(is_store
+          ? kChangesExternalMemory : kDependsOnExternalMemory);
+      break;
   }
 }
 
 
 void HObjectAccess::PrintTo(StringStream* stream) {
   stream->Add(".");
 
   switch (portion()) {
     case kArrayLengths:
       stream->Add("%length");
       break;
     case kElementsPointer:
       stream->Add("%elements");
       break;
     case kMaps:
       stream->Add("%map");
       break;
     case kDouble:  // fall through
     case kInobject:
       if (!name_.is_null()) stream->Add(*String::cast(*name_)->ToCString());
       stream->Add("[in-object]");
       break;
     case kBackingStore:
       if (!name_.is_null()) stream->Add(*String::cast(*name_)->ToCString());
       stream->Add("[backing-store]");
       break;
+    case kExternalMemory:
+      stream->Add("[external-memory]");
+      break;
   }
 
   stream->Add("@%d", offset());
 }
 
 } }  // namespace v8::internal