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Unified Diff: src/x64/full-codegen-x64.cc

Issue 1135243004: [es6] Support super.property in eval and arrow functions (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Try feedback slot Created 5 years, 7 months ago
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Index: src/x64/full-codegen-x64.cc
diff --git a/src/x64/full-codegen-x64.cc b/src/x64/full-codegen-x64.cc
index 91842d3c6bab0ac5b52ce9ec7332ef2f9ba66c1f..a95478b88c218396d91c7d0a87e3664534392d10 100644
--- a/src/x64/full-codegen-x64.cc
+++ b/src/x64/full-codegen-x64.cc
@@ -301,6 +301,28 @@ void FullCodeGenerator::Generate() {
SetVar(arguments, rax, rbx, rdx);
}
+ Variable* home_object_var = scope()->home_object_var();
+ if (home_object_var != nullptr) {
+ Comment cmnt(masm_, "[ Home object");
+ if (function_in_register) {
+ __ movp(LoadDescriptor::ReceiverRegister(), rdi);
+ } else {
+ __ movp(LoadDescriptor::ReceiverRegister(),
+ Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
+ }
+ Handle<Symbol> home_object_symbol(isolate()->heap()->home_object_symbol());
+ __ Move(LoadDescriptor::NameRegister(), home_object_symbol);
+
+ if (FLAG_vector_ics) {
+ __ Move(VectorLoadICDescriptor::SlotRegister(),
+ SmiFromSlot(function()->HomeObjectFeedbackSlot()));
+ }
+ CallLoadIC(NOT_CONTEXTUAL);
+
+ SetVar(home_object_var, rax, rbx, rdx);
+ }
+
+
if (FLAG_trace) {
__ CallRuntime(Runtime::kTraceEnter, 0);
}
@@ -1285,32 +1307,6 @@ void FullCodeGenerator::VisitVariableProxy(VariableProxy* expr) {
}
-void FullCodeGenerator::EmitLoadHomeObject(SuperReference* expr) {
- Comment cnmt(masm_, "[ SuperReference ");
-
- __ movp(LoadDescriptor::ReceiverRegister(),
- Operand(rbp, JavaScriptFrameConstants::kFunctionOffset));
-
- Handle<Symbol> home_object_symbol(isolate()->heap()->home_object_symbol());
- __ Move(LoadDescriptor::NameRegister(), home_object_symbol);
-
- if (FLAG_vector_ics) {
- __ Move(VectorLoadICDescriptor::SlotRegister(),
- SmiFromSlot(expr->HomeObjectFeedbackSlot()));
- CallLoadIC(NOT_CONTEXTUAL);
- } else {
- CallLoadIC(NOT_CONTEXTUAL, expr->HomeObjectFeedbackId());
- }
-
-
- __ Cmp(rax, isolate()->factory()->undefined_value());
- Label done;
- __ j(not_equal, &done);
- __ CallRuntime(Runtime::kThrowNonMethodError, 0);
- __ bind(&done);
-}
-
-
void FullCodeGenerator::EmitSetHomeObjectIfNeeded(Expression* initializer,
int offset) {
if (NeedsHomeObject(initializer)) {
@@ -1925,7 +1921,8 @@ void FullCodeGenerator::VisitAssignment(Assignment* expr) {
break;
case NAMED_SUPER_PROPERTY:
VisitForStackValue(property->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(property->obj()->AsSuperReference());
+ VisitForAccumulatorValue(
+ property->obj()->AsSuperReference()->home_object_var());
__ Push(result_register());
if (expr->is_compound()) {
__ Push(MemOperand(rsp, kPointerSize));
@@ -1934,8 +1931,8 @@ void FullCodeGenerator::VisitAssignment(Assignment* expr) {
break;
case KEYED_SUPER_PROPERTY:
VisitForStackValue(property->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(property->obj()->AsSuperReference());
- __ Push(result_register());
+ VisitForStackValue(
+ property->obj()->AsSuperReference()->home_object_var());
VisitForAccumulatorValue(property->key());
__ Push(result_register());
if (expr->is_compound()) {
@@ -2540,7 +2537,8 @@ void FullCodeGenerator::EmitAssignment(Expression* expr) {
case NAMED_SUPER_PROPERTY: {
__ Push(rax);
VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(prop->obj()->AsSuperReference());
+ VisitForAccumulatorValue(
+ prop->obj()->AsSuperReference()->home_object_var());
// stack: value, this; rax: home_object
Register scratch = rcx;
Register scratch2 = rdx;
@@ -2556,8 +2554,7 @@ void FullCodeGenerator::EmitAssignment(Expression* expr) {
case KEYED_SUPER_PROPERTY: {
__ Push(rax);
VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(prop->obj()->AsSuperReference());
- __ Push(result_register());
+ VisitForStackValue(prop->obj()->AsSuperReference()->home_object_var());
VisitForAccumulatorValue(prop->key());
Register scratch = rcx;
Register scratch2 = rdx;
@@ -2765,8 +2762,7 @@ void FullCodeGenerator::VisitProperty(Property* expr) {
EmitNamedPropertyLoad(expr);
} else {
VisitForStackValue(expr->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(expr->obj()->AsSuperReference());
- __ Push(result_register());
+ VisitForStackValue(expr->obj()->AsSuperReference()->home_object_var());
EmitNamedSuperPropertyLoad(expr);
}
} else {
@@ -2778,8 +2774,7 @@ void FullCodeGenerator::VisitProperty(Property* expr) {
EmitKeyedPropertyLoad(expr);
} else {
VisitForStackValue(expr->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(expr->obj()->AsSuperReference());
- __ Push(result_register());
+ VisitForStackValue(expr->obj()->AsSuperReference()->home_object_var());
VisitForStackValue(expr->key());
EmitKeyedSuperPropertyLoad(expr);
}
@@ -2838,8 +2833,7 @@ void FullCodeGenerator::EmitSuperCallWithLoadIC(Call* expr) {
DCHECK(!key->value()->IsSmi());
// Load the function from the receiver.
SuperReference* super_ref = prop->obj()->AsSuperReference();
- EmitLoadHomeObject(super_ref);
- __ Push(rax);
+ VisitForStackValue(super_ref->home_object_var());
VisitForAccumulatorValue(super_ref->this_var());
__ Push(rax);
__ Push(rax);
@@ -2896,8 +2890,7 @@ void FullCodeGenerator::EmitKeyedSuperCallWithLoadIC(Call* expr) {
SetSourcePosition(prop->position());
// Load the function from the receiver.
SuperReference* super_ref = prop->obj()->AsSuperReference();
- EmitLoadHomeObject(super_ref);
- __ Push(rax);
+ VisitForStackValue(super_ref->home_object_var());
VisitForAccumulatorValue(super_ref->this_var());
__ Push(rax);
__ Push(rax);
@@ -4795,7 +4788,8 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
case NAMED_SUPER_PROPERTY: {
VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(prop->obj()->AsSuperReference());
+ VisitForAccumulatorValue(
+ prop->obj()->AsSuperReference()->home_object_var());
__ Push(result_register());
__ Push(MemOperand(rsp, kPointerSize));
__ Push(result_register());
@@ -4805,8 +4799,7 @@ void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
case KEYED_SUPER_PROPERTY: {
VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
- EmitLoadHomeObject(prop->obj()->AsSuperReference());
- __ Push(result_register());
+ VisitForStackValue(prop->obj()->AsSuperReference()->home_object_var());
VisitForAccumulatorValue(prop->key());
__ Push(result_register());
__ Push(MemOperand(rsp, 2 * kPointerSize));
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