[ic] Initialize feedback slots for LoadGlobalIC in Runtime::kDeclareGlobals when possible to ...

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 8d2d2146247f7b93f5387cf8625d8fe7da0f3a92..bca151bf62c021a64fec9e238593e4c138a22c30 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -12336,7 +12336,8 @@ void HOptimizedGraphBuilder::VisitDeclarations(
        isolate()->factory()->NewFixedArray(globals_.length(), TENURED);
     for (int i = 0; i < globals_.length(); ++i) array->set(i, *globals_.at(i));
     int flags = current_info()->GetDeclareGlobalsFlags();
-    Add<HDeclareGlobals>(array, flags);
+    Handle<TypeFeedbackVector> vector(current_feedback_vector(), isolate());
+    Add<HDeclareGlobals>(array, flags, vector);
     globals_.Rewind(0);
   }
 }
@@ -12350,11 +12351,14 @@ void HOptimizedGraphBuilder::VisitVariableDeclaration(
   bool hole_init = mode == LET || mode == CONST;
   switch (variable->location()) {
     case VariableLocation::GLOBAL:
-    case VariableLocation::UNALLOCATED:
+    case VariableLocation::UNALLOCATED: {
       DCHECK(!variable->binding_needs_init());
-      globals_.Add(variable->name(), zone());
+      FeedbackVectorSlot slot = proxy->VariableFeedbackSlot();
+      DCHECK(!slot.IsInvalid());
+      globals_.Add(handle(Smi::FromInt(slot.ToInt()), isolate()), zone());
       globals_.Add(isolate()->factory()->undefined_value(), zone());
       return;
+    }
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL:
       if (hole_init) {
@@ -12386,7 +12390,9 @@ void HOptimizedGraphBuilder::VisitFunctionDeclaration(
   switch (variable->location()) {
     case VariableLocation::GLOBAL:
     case VariableLocation::UNALLOCATED: {
-      globals_.Add(variable->name(), zone());
+      FeedbackVectorSlot slot = proxy->VariableFeedbackSlot();
+      DCHECK(!slot.IsInvalid());
+      globals_.Add(handle(Smi::FromInt(slot.ToInt()), isolate()), zone());
       Handle<SharedFunctionInfo> function = Compiler::GetSharedFunctionInfo(
           declaration->fun(), current_info()->script(), top_info());
       // Check for stack-overflow exception.