Make concrete classes for individual call descriptors.

src/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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 1365 matching lines @@
     __ JumpIfRoot(temp, Heap::kNativeContextMapRootIndex, &fast);
     // Check that extension is NULL.
     __ Ldr(temp, ContextMemOperand(next, Context::EXTENSION_INDEX));
     __ Cbnz(temp, slow);
     // Load next context in chain.
     __ Ldr(next, ContextMemOperand(next, Context::PREVIOUS_INDEX));
     __ B(&loop);
     __ Bind(&fast);
   }
 
-  __ Ldr(LoadConvention::ReceiverRegister(), GlobalObjectMemOperand());
-  __ Mov(LoadConvention::NameRegister(), Operand(proxy->var()->name()));
+  __ Ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectMemOperand());
+  __ Mov(LoadDescriptor::NameRegister(), Operand(proxy->var()->name()));
   if (FLAG_vector_ics) {
-    __ Mov(VectorLoadConvention::SlotRegister(),
+    __ Mov(VectorLoadICDescriptor::SlotRegister(),
            Smi::FromInt(proxy->VariableFeedbackSlot()));
   }
 
   ContextualMode mode = (typeof_state == INSIDE_TYPEOF) ? NOT_CONTEXTUAL
                                                         : CONTEXTUAL;
   CallLoadIC(mode);
 }
 
 
 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var,
@@ skipping 61 matching lines @@
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of
   // variables.
   switch (var->location()) {
     case Variable::UNALLOCATED: {
       Comment cmnt(masm_, "Global variable");
-      __ Ldr(LoadConvention::ReceiverRegister(), GlobalObjectMemOperand());
-      __ Mov(LoadConvention::NameRegister(), Operand(var->name()));
+      __ Ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectMemOperand());
+      __ Mov(LoadDescriptor::NameRegister(), Operand(var->name()));
       if (FLAG_vector_ics) {
-        __ Mov(VectorLoadConvention::SlotRegister(),
+        __ Mov(VectorLoadICDescriptor::SlotRegister(),
                Smi::FromInt(proxy->VariableFeedbackSlot()));
       }
       CallLoadIC(CONTEXTUAL);
       context()->Plug(x0);
       break;
     }
 
     case Variable::PARAMETER:
     case Variable::LOCAL:
     case Variable::CONTEXT: {
@@ skipping 189 matching lines @@
     switch (property->kind()) {
       case ObjectLiteral::Property::CONSTANT:
         UNREACHABLE();
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         DCHECK(!CompileTimeValue::IsCompileTimeValue(property->value()));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         if (key->value()->IsInternalizedString()) {
           if (property->emit_store()) {
             VisitForAccumulatorValue(value);
-            DCHECK(StoreConvention::ValueRegister().is(x0));
-            __ Mov(StoreConvention::NameRegister(), Operand(key->value()));
-            __ Peek(StoreConvention::ReceiverRegister(), 0);
+            DCHECK(StoreDescriptor::ValueRegister().is(x0));
+            __ Mov(StoreDescriptor::NameRegister(), Operand(key->value()));
+            __ Peek(StoreDescriptor::ReceiverRegister(), 0);
             CallStoreIC(key->LiteralFeedbackId());
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
           } else {
             VisitForEffect(value);
           }
           break;
         }
         if (property->emit_store()) {
           // Duplicate receiver on stack.
           __ Peek(x0, 0);
@@ skipping 157 matching lines @@
 
   // Evaluate LHS expression.
   switch (assign_type) {
     case VARIABLE:
       // Nothing to do here.
       break;
     case NAMED_PROPERTY:
       if (expr->is_compound()) {
         // We need the receiver both on the stack and in the register.
         VisitForStackValue(property->obj());
-        __ Peek(LoadConvention::ReceiverRegister(), 0);
+        __ Peek(LoadDescriptor::ReceiverRegister(), 0);
       } else {
         VisitForStackValue(property->obj());
       }
       break;
     case KEYED_PROPERTY:
       if (expr->is_compound()) {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
-        __ Peek(LoadConvention::ReceiverRegister(), 1 * kPointerSize);
-        __ Peek(LoadConvention::NameRegister(), 0);
+        __ Peek(LoadDescriptor::ReceiverRegister(), 1 * kPointerSize);
+        __ Peek(LoadDescriptor::NameRegister(), 0);
       } else {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
       }
       break;
   }
 
   // For compound assignments we need another deoptimization point after the
   // variable/property load.
   if (expr->is_compound()) {
@@ skipping 56 matching lines @@
     case KEYED_PROPERTY:
       EmitKeyedPropertyAssignment(expr);
       break;
   }
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
-  __ Mov(LoadConvention::NameRegister(), Operand(key->value()));
+  __ Mov(LoadDescriptor::NameRegister(), Operand(key->value()));
   if (FLAG_vector_ics) {
-    __ Mov(VectorLoadConvention::SlotRegister(),
+    __ Mov(VectorLoadICDescriptor::SlotRegister(),
            Smi::FromInt(prop->PropertyFeedbackSlot()));
     CallLoadIC(NOT_CONTEXTUAL);
   } else {
     CallLoadIC(NOT_CONTEXTUAL, prop->PropertyFeedbackId());
   }
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   // Call keyed load IC. It has arguments key and receiver in r0 and r1.
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
   if (FLAG_vector_ics) {
-    __ Mov(VectorLoadConvention::SlotRegister(),
+    __ Mov(VectorLoadICDescriptor::SlotRegister(),
            Smi::FromInt(prop->PropertyFeedbackSlot()));
     CallIC(ic);
   } else {
     CallIC(ic, prop->PropertyFeedbackId());
   }
 }
 
 
 void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
@@ skipping 128 matching lines @@
       Variable* var = expr->AsVariableProxy()->var();
       EffectContext context(this);
       EmitVariableAssignment(var, Token::ASSIGN);
       break;
     }
     case NAMED_PROPERTY: {
       __ Push(x0);  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
       // TODO(all): We could introduce a VisitForRegValue(reg, expr) to avoid
       // this copy.
-      __ Mov(StoreConvention::ReceiverRegister(), x0);
-      __ Pop(StoreConvention::ValueRegister());  // Restore value.
-      __ Mov(StoreConvention::NameRegister(),
+      __ Mov(StoreDescriptor::ReceiverRegister(), x0);
+      __ Pop(StoreDescriptor::ValueRegister());  // Restore value.
+      __ Mov(StoreDescriptor::NameRegister(),
              Operand(prop->key()->AsLiteral()->value()));
       CallStoreIC();
       break;
     }
     case KEYED_PROPERTY: {
       __ Push(x0);  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
-      __ Mov(StoreConvention::NameRegister(), x0);
-      __ Pop(StoreConvention::ReceiverRegister(),
-             StoreConvention::ValueRegister());
+      __ Mov(StoreDescriptor::NameRegister(), x0);
+      __ Pop(StoreDescriptor::ReceiverRegister(),
+             StoreDescriptor::ValueRegister());
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
       CallIC(ic);
       break;
     }
   }
   context()->Plug(x0);
 }
 
 
 void FullCodeGenerator::EmitStoreToStackLocalOrContextSlot(
     Variable* var, MemOperand location) {
   __ Str(result_register(), location);
   if (var->IsContextSlot()) {
     // RecordWrite may destroy all its register arguments.
     __ Mov(x10, result_register());
     int offset = Context::SlotOffset(var->index());
     __ RecordWriteContextSlot(
         x1, offset, x10, x11, kLRHasBeenSaved, kDontSaveFPRegs);
   }
 }
 
 
 void FullCodeGenerator::EmitVariableAssignment(Variable* var,
                                                Token::Value op) {
   ASM_LOCATION("FullCodeGenerator::EmitVariableAssignment");
   if (var->IsUnallocated()) {
     // Global var, const, or let.
-    __ Mov(StoreConvention::NameRegister(), Operand(var->name()));
-    __ Ldr(StoreConvention::ReceiverRegister(), GlobalObjectMemOperand());
+    __ Mov(StoreDescriptor::NameRegister(), Operand(var->name()));
+    __ Ldr(StoreDescriptor::ReceiverRegister(), GlobalObjectMemOperand());
     CallStoreIC();
 
   } else if (op == Token::INIT_CONST_LEGACY) {
     // Const initializers need a write barrier.
     DCHECK(!var->IsParameter());  // No const parameters.
     if (var->IsLookupSlot()) {
       __ Mov(x1, Operand(var->name()));
       __ Push(x0, cp, x1);
       __ CallRuntime(Runtime::kInitializeLegacyConstLookupSlot, 3);
     } else {
@@ skipping 51 matching lines @@
 
 void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
   ASM_LOCATION("FullCodeGenerator::EmitNamedPropertyAssignment");
   // Assignment to a property, using a named store IC.
   Property* prop = expr->target()->AsProperty();
   DCHECK(prop != NULL);
   DCHECK(prop->key()->IsLiteral());
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
-  __ Mov(StoreConvention::NameRegister(),
+  __ Mov(StoreDescriptor::NameRegister(),
          Operand(prop->key()->AsLiteral()->value()));
-  __ Pop(StoreConvention::ReceiverRegister());
+  __ Pop(StoreDescriptor::ReceiverRegister());
   CallStoreIC(expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(x0);
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
   ASM_LOCATION("FullCodeGenerator::EmitKeyedPropertyAssignment");
   // Assignment to a property, using a keyed store IC.
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   // TODO(all): Could we pass this in registers rather than on the stack?
-  __ Pop(StoreConvention::NameRegister(), StoreConvention::ReceiverRegister());
-  DCHECK(StoreConvention::ValueRegister().is(x0));
+  __ Pop(StoreDescriptor::NameRegister(), StoreDescriptor::ReceiverRegister());
+  DCHECK(StoreDescriptor::ValueRegister().is(x0));
 
   Handle<Code> ic = strict_mode() == SLOPPY
       ? isolate()->builtins()->KeyedStoreIC_Initialize()
       : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
   CallIC(ic, expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(x0);
 }
 
 
 void FullCodeGenerator::VisitProperty(Property* expr) {
   Comment cmnt(masm_, "[ Property");
   Expression* key = expr->key();
 
   if (key->IsPropertyName()) {
     VisitForAccumulatorValue(expr->obj());
-    __ Move(LoadConvention::ReceiverRegister(), x0);
+    __ Move(LoadDescriptor::ReceiverRegister(), x0);
     EmitNamedPropertyLoad(expr);
     PrepareForBailoutForId(expr->LoadId(), TOS_REG);
     context()->Plug(x0);
   } else {
     VisitForStackValue(expr->obj());
     VisitForAccumulatorValue(expr->key());
-    __ Move(LoadConvention::NameRegister(), x0);
-    __ Pop(LoadConvention::ReceiverRegister());
+    __ Move(LoadDescriptor::NameRegister(), x0);
+    __ Pop(LoadDescriptor::ReceiverRegister());
     EmitKeyedPropertyLoad(expr);
     context()->Plug(x0);
   }
 }
 
 
 void FullCodeGenerator::CallIC(Handle<Code> code,
                                TypeFeedbackId ast_id) {
   ic_total_count_++;
   // All calls must have a predictable size in full-codegen code to ensure that
@@ skipping 15 matching lines @@
     { StackValueContext context(this);
       EmitVariableLoad(callee->AsVariableProxy());
       PrepareForBailout(callee, NO_REGISTERS);
     }
     // Push undefined as receiver. This is patched in the method prologue if it
     // is a sloppy mode method.
     __ Push(isolate()->factory()->undefined_value());
   } else {
     // Load the function from the receiver.
     DCHECK(callee->IsProperty());
-    __ Peek(LoadConvention::ReceiverRegister(), 0);
+    __ Peek(LoadDescriptor::ReceiverRegister(), 0);
     EmitNamedPropertyLoad(callee->AsProperty());
     PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
     // Push the target function under the receiver.
     __ Pop(x10);
     __ Push(x0, x10);
   }
 
   EmitCall(expr, call_type);
 }
 
 
 // Code common for calls using the IC.
 void FullCodeGenerator::EmitKeyedCallWithLoadIC(Call* expr,
                                                 Expression* key) {
   // Load the key.
   VisitForAccumulatorValue(key);
 
   Expression* callee = expr->expression();
 
   // Load the function from the receiver.
   DCHECK(callee->IsProperty());
-  __ Peek(LoadConvention::ReceiverRegister(), 0);
-  __ Move(LoadConvention::NameRegister(), x0);
+  __ Peek(LoadDescriptor::ReceiverRegister(), 0);
+  __ Move(LoadDescriptor::NameRegister(), x0);
   EmitKeyedPropertyLoad(callee->AsProperty());
   PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
 
   // Push the target function under the receiver.
   __ Pop(x10);
   __ Push(x0, x10);
 
   EmitCall(expr, CallIC::METHOD);
 }
 
@@ skipping 1395 matching lines @@
     return;
   }
 
   Comment cmnt(masm_, "[ CallRunTime");
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
 
   if (expr->is_jsruntime()) {
     // Push the builtins object as the receiver.
     __ Ldr(x10, GlobalObjectMemOperand());
-    __ Ldr(LoadConvention::ReceiverRegister(),
+    __ Ldr(LoadDescriptor::ReceiverRegister(),
            FieldMemOperand(x10, GlobalObject::kBuiltinsOffset));
-    __ Push(LoadConvention::ReceiverRegister());
+    __ Push(LoadDescriptor::ReceiverRegister());
 
     // Load the function from the receiver.
     Handle<String> name = expr->name();
-    __ Mov(LoadConvention::NameRegister(), Operand(name));
+    __ Mov(LoadDescriptor::NameRegister(), Operand(name));
     if (FLAG_vector_ics) {
-      __ Mov(VectorLoadConvention::SlotRegister(),
+      __ Mov(VectorLoadICDescriptor::SlotRegister(),
              Smi::FromInt(expr->CallRuntimeFeedbackSlot()));
       CallLoadIC(NOT_CONTEXTUAL);
     } else {
       CallLoadIC(NOT_CONTEXTUAL, expr->CallRuntimeFeedbackId());
     }
 
     // Push the target function under the receiver.
     __ Pop(x10);
     __ Push(x0, x10);
 
@@ skipping 159 matching lines @@
     AccumulatorValueContext context(this);
     EmitVariableLoad(expr->expression()->AsVariableProxy());
   } else {
     // Reserve space for result of postfix operation.
     if (expr->is_postfix() && !context()->IsEffect()) {
       __ Push(xzr);
     }
     if (assign_type == NAMED_PROPERTY) {
       // Put the object both on the stack and in the register.
       VisitForStackValue(prop->obj());
-      __ Peek(LoadConvention::ReceiverRegister(), 0);
+      __ Peek(LoadDescriptor::ReceiverRegister(), 0);
       EmitNamedPropertyLoad(prop);
     } else {
       // KEYED_PROPERTY
       VisitForStackValue(prop->obj());
       VisitForStackValue(prop->key());
-      __ Peek(LoadConvention::ReceiverRegister(), 1 * kPointerSize);
-      __ Peek(LoadConvention::NameRegister(), 0);
+      __ Peek(LoadDescriptor::ReceiverRegister(), 1 * kPointerSize);
+      __ Peek(LoadDescriptor::NameRegister(), 0);
       EmitKeyedPropertyLoad(prop);
     }
   }
 
   // We need a second deoptimization point after loading the value
   // in case evaluating the property load my have a side effect.
   if (assign_type == VARIABLE) {
     PrepareForBailout(expr->expression(), TOS_REG);
   } else {
     PrepareForBailoutForId(prop->LoadId(), TOS_REG);
@@ skipping 89 matching lines @@
           context()->PlugTOS();
         }
       } else {
         EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                Token::ASSIGN);
         PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
         context()->Plug(x0);
       }
       break;
     case NAMED_PROPERTY: {
-      __ Mov(StoreConvention::NameRegister(),
+      __ Mov(StoreDescriptor::NameRegister(),
              Operand(prop->key()->AsLiteral()->value()));
-      __ Pop(StoreConvention::ReceiverRegister());
+      __ Pop(StoreDescriptor::ReceiverRegister());
       CallStoreIC(expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(x0);
       }
       break;
     }
     case KEYED_PROPERTY: {
-      __ Pop(StoreConvention::NameRegister());
-      __ Pop(StoreConvention::ReceiverRegister());
+      __ Pop(StoreDescriptor::NameRegister());
+      __ Pop(StoreDescriptor::ReceiverRegister());
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
       CallIC(ic, expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(x0);
       }
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitForTypeofValue(Expression* expr) {
   DCHECK(!context()->IsEffect());
   DCHECK(!context()->IsTest());
   VariableProxy* proxy = expr->AsVariableProxy();
   if (proxy != NULL && proxy->var()->IsUnallocated()) {
     Comment cmnt(masm_, "Global variable");
-    __ Ldr(LoadConvention::ReceiverRegister(), GlobalObjectMemOperand());
-    __ Mov(LoadConvention::NameRegister(), Operand(proxy->name()));
+    __ Ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectMemOperand());
+    __ Mov(LoadDescriptor::NameRegister(), Operand(proxy->name()));
     if (FLAG_vector_ics) {
-      __ Mov(VectorLoadConvention::SlotRegister(),
+      __ Mov(VectorLoadICDescriptor::SlotRegister(),
              Smi::FromInt(proxy->VariableFeedbackSlot()));
     }
     // Use a regular load, not a contextual load, to avoid a reference
     // error.
     CallLoadIC(NOT_CONTEXTUAL);
     PrepareForBailout(expr, TOS_REG);
     context()->Plug(x0);
   } else if (proxy != NULL && proxy->var()->IsLookupSlot()) {
     Label done, slow;
 
@@ skipping 274 matching lines @@
 
     case Yield::kDelegating: {
       VisitForStackValue(expr->generator_object());
 
       // Initial stack layout is as follows:
       // [sp + 1 * kPointerSize] iter
       // [sp + 0 * kPointerSize] g
 
       Label l_catch, l_try, l_suspend, l_continuation, l_resume;
       Label l_next, l_call, l_loop;
-      Register load_receiver = LoadConvention::ReceiverRegister();
-      Register load_name = LoadConvention::NameRegister();
+      Register load_receiver = LoadDescriptor::ReceiverRegister();
+      Register load_name = LoadDescriptor::NameRegister();
 
       // Initial send value is undefined.
       __ LoadRoot(x0, Heap::kUndefinedValueRootIndex);
       __ B(&l_next);
 
       // catch (e) { receiver = iter; f = 'throw'; arg = e; goto l_call; }
       __ Bind(&l_catch);
       handler_table()->set(expr->index(), Smi::FromInt(l_catch.pos()));
       __ LoadRoot(load_name, Heap::kthrow_stringRootIndex);  // "throw"
       __ Peek(x3, 1 * kPointerSize);                         // iter
@@ skipping 39 matching lines @@
 
       __ LoadRoot(load_name, Heap::knext_stringRootIndex);  // "next"
       __ Peek(x3, 1 * kPointerSize);                        // iter
       __ Push(load_name, x3, x0);                      // "next", iter, received
 
       // result = receiver[f](arg);
       __ Bind(&l_call);
       __ Peek(load_receiver, 1 * kPointerSize);
       __ Peek(load_name, 2 * kPointerSize);
       if (FLAG_vector_ics) {
-        __ Mov(VectorLoadConvention::SlotRegister(),
+        __ Mov(VectorLoadICDescriptor::SlotRegister(),
                Smi::FromInt(expr->KeyedLoadFeedbackSlot()));
       }
       Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
       CallIC(ic, TypeFeedbackId::None());
       __ Mov(x1, x0);
       __ Poke(x1, 2 * kPointerSize);
       CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD);
       __ CallStub(&stub);
 
       __ Ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
       __ Drop(1);  // The function is still on the stack; drop it.
 
       // if (!result.done) goto l_try;
       __ Bind(&l_loop);
       __ Move(load_receiver, x0);
 
       __ Push(load_receiver);                               // save result
       __ LoadRoot(load_name, Heap::kdone_stringRootIndex);  // "done"
       if (FLAG_vector_ics) {
-        __ Mov(VectorLoadConvention::SlotRegister(),
+        __ Mov(VectorLoadICDescriptor::SlotRegister(),
                Smi::FromInt(expr->DoneFeedbackSlot()));
       }
       CallLoadIC(NOT_CONTEXTUAL);                           // x0=result.done
       // The ToBooleanStub argument (result.done) is in x0.
       Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate());
       CallIC(bool_ic);
       __ Cbz(x0, &l_try);
 
       // result.value
       __ Pop(load_receiver);                                 // result
       __ LoadRoot(load_name, Heap::kvalue_stringRootIndex);  // "value"
       if (FLAG_vector_ics) {
-        __ Mov(VectorLoadConvention::SlotRegister(),
+        __ Mov(VectorLoadICDescriptor::SlotRegister(),
                Smi::FromInt(expr->ValueFeedbackSlot()));
       }
       CallLoadIC(NOT_CONTEXTUAL);                            // x0=result.value
       context()->DropAndPlug(2, x0);                         // drop iter and g
       break;
     }
   }
 }
 
 
@@ skipping 411 matching lines @@
   return previous_;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64