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

src/full-codegen/arm64/full-codegen-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 752 matching lines @@
   // If it was not possible to allocate the variable at compile time, we
   // need to "declare" it at runtime to make sure it actually exists in the
   // local context.
   VariableProxy* proxy = declaration->proxy();
   VariableMode mode = declaration->mode();
   Variable* variable = proxy->var();
   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());
       break;
-
+    }
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL:
       if (hole_init) {
         Comment cmnt(masm_, "[ VariableDeclaration");
         __ LoadRoot(x10, Heap::kTheHoleValueRootIndex);
         __ Str(x10, StackOperand(variable));
       }
       break;
 
     case VariableLocation::CONTEXT:
@@ skipping 21 matching lines @@
 }
 
 
 void FullCodeGenerator::VisitFunctionDeclaration(
     FunctionDeclaration* declaration) {
   VariableProxy* proxy = declaration->proxy();
   Variable* variable = proxy->var();
   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(), script(), info_);
       // Check for stack overflow exception.
       if (function.is_null()) return SetStackOverflow();
       globals_->Add(function, zone());
       break;
     }
 
     case VariableLocation::PARAMETER:
     case VariableLocation::LOCAL: {
@@ skipping 37 matching lines @@
 
 
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
   __ Mov(x11, Operand(pairs));
   Register flags = xzr;
   if (Smi::FromInt(DeclareGlobalsFlags())) {
     flags = x10;
   __ Mov(flags, Smi::FromInt(DeclareGlobalsFlags()));
   }
-  __ Push(x11, flags);
+  __ EmitLoadTypeFeedbackVector(x12);
+  __ Push(x11, flags, x12);
   __ CallRuntime(Runtime::kDeclareGlobals);
   // Return value is ignored.
 }
 
 
 void FullCodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) {
   ASM_LOCATION("FullCodeGenerator::VisitSwitchStatement");
   Comment cmnt(masm_, "[ SwitchStatement");
   Breakable nested_statement(this, stmt);
   SetStatementPosition(stmt);
@@ skipping 2973 matching lines @@
   }
 
   return INTERRUPT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64