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Unified Diff: src/arm64/full-codegen-arm64.cc

Issue 1202963005: Fix receiver when calling eval() bound by with scope (Closed) Base URL: https://chromium.googlesource.com/v8/v8@master
Patch Set: Full-codegen impls for all arches Created 5 years, 6 months ago
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Index: src/arm64/full-codegen-arm64.cc
diff --git a/src/arm64/full-codegen-arm64.cc b/src/arm64/full-codegen-arm64.cc
index 93e4d4f51aed3777396b785641212537417c2d5a..db03ef72a47af38c1b472a43dc603c8f8bc7acb4 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -2829,6 +2829,51 @@ void FullCodeGenerator::EmitInitializeThisAfterSuper(
}
+// See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls.
+void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) {
+ VariableProxy* callee = expr->expression()->AsVariableProxy();
+ if (callee->var()->IsLookupSlot()) {
+ Label slow, done;
+
+ {
+ PreservePositionScope scope(masm()->positions_recorder());
+ // Generate code for loading from variables potentially shadowed
+ // by eval-introduced variables.
+ EmitDynamicLookupFastCase(callee, NOT_INSIDE_TYPEOF, &slow, &done);
+ }
+
+ __ Bind(&slow);
+ // Call the runtime to find the function to call (returned in x0)
+ // and the object holding it (returned in x1).
+ __ Mov(x10, Operand(callee->name()));
+ __ Push(context_register(), x10);
+ __ CallRuntime(Runtime::kLoadLookupSlot, 2);
+ __ Push(x0, x1); // Receiver, function.
+ PrepareForBailoutForId(expr->LookupId(), NO_REGISTERS);
+
+ // If fast case code has been generated, emit code to push the
+ // function and receiver and have the slow path jump around this
+ // code.
+ if (done.is_linked()) {
+ Label call;
+ __ B(&call);
+ __ Bind(&done);
+ // Push function.
+ // The receiver is implicitly the global receiver. Indicate this
+ // by passing the undefined to the call function stub.
+ __ LoadRoot(x1, Heap::kUndefinedValueRootIndex);
+ __ Push(x0, x1);
+ __ Bind(&call);
+ }
+ } else {
+ VisitForStackValue(callee);
+ // refEnv.WithBaseObject()
+ __ LoadRoot(x10, Heap::kUndefinedValueRootIndex);
+ __ Push(x10); // Reserved receiver slot.
+ }
+}
+
+
void FullCodeGenerator::VisitCall(Call* expr) {
#ifdef DEBUG
// We want to verify that RecordJSReturnSite gets called on all paths
@@ -2849,9 +2894,7 @@ void FullCodeGenerator::VisitCall(Call* expr) {
{
PreservePositionScope pos_scope(masm()->positions_recorder());
- VisitForStackValue(callee);
- __ LoadRoot(x10, Heap::kUndefinedValueRootIndex);
- __ Push(x10); // Reserved receiver slot.
+ PushCalleeAndWithBaseObject(expr);
// Push the arguments.
for (int i = 0; i < arg_count; i++) {
@@ -2867,7 +2910,7 @@ void FullCodeGenerator::VisitCall(Call* expr) {
// Touch up the stack with the resolved function.
__ Poke(x0, (arg_count + 1) * kPointerSize);
- PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS);
+ PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
}
// Record source position for debugger.
@@ -2887,41 +2930,7 @@ void FullCodeGenerator::VisitCall(Call* expr) {
} else if (call_type == Call::LOOKUP_SLOT_CALL) {
// Call to a lookup slot (dynamically introduced variable).
- VariableProxy* proxy = callee->AsVariableProxy();
- Label slow, done;
-
- { PreservePositionScope scope(masm()->positions_recorder());
- // Generate code for loading from variables potentially shadowed
- // by eval-introduced variables.
- EmitDynamicLookupFastCase(proxy, NOT_INSIDE_TYPEOF, &slow, &done);
- }
-
- __ Bind(&slow);
- // Call the runtime to find the function to call (returned in x0)
- // and the object holding it (returned in x1).
- __ Mov(x10, Operand(proxy->name()));
- __ Push(context_register(), x10);
- __ CallRuntime(Runtime::kLoadLookupSlot, 2);
- __ Push(x0, x1); // Receiver, function.
- PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS);
-
- // If fast case code has been generated, emit code to push the
- // function and receiver and have the slow path jump around this
- // code.
- if (done.is_linked()) {
- Label call;
- __ B(&call);
- __ Bind(&done);
- // Push function.
- // The receiver is implicitly the global receiver. Indicate this
- // by passing the undefined to the call function stub.
- __ LoadRoot(x1, Heap::kUndefinedValueRootIndex);
- __ Push(x0, x1);
- __ Bind(&call);
- }
-
- // The receiver is either the global receiver or an object found
- // by LoadContextSlot.
+ PushCalleeAndWithBaseObject(expr);
EmitCall(expr);
} else if (call_type == Call::PROPERTY_CALL) {
Property* property = callee->AsProperty();
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