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Unified Diff: src/ic/x64/handler-compiler-x64.cc

Issue 926293004: Embed store callback in handler via weak cell. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: typo Created 5 years, 10 months ago
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Index: src/ic/x64/handler-compiler-x64.cc
diff --git a/src/ic/x64/handler-compiler-x64.cc b/src/ic/x64/handler-compiler-x64.cc
index d451f2e032f04ebac3997c76d36210ca751b1730..485d87dc5790552ccda5161646650c9df29d7beb 100644
--- a/src/ic/x64/handler-compiler-x64.cc
+++ b/src/ic/x64/handler-compiler-x64.cc
@@ -676,13 +676,21 @@ void NamedLoadHandlerCompiler::GenerateLoadInterceptor(Register holder_reg) {
Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
- Handle<JSObject> object, Handle<Name> name, int accessor_index) {
+ Handle<JSObject> object, Handle<Name> name,
+ Handle<ExecutableAccessorInfo> callback) {
Register holder_reg = Frontend(name);
__ PopReturnAddressTo(scratch1());
__ Push(receiver());
__ Push(holder_reg);
- __ Push(Smi::FromInt(accessor_index));
+ // If the callback cannot leak, then push the callback directly,
+ // otherwise wrap it in a weak cell.
+ if (callback->data()->IsUndefined() || callback->data()->IsSmi()) {
+ __ Push(callback);
+ } else {
+ Handle<WeakCell> cell = isolate()->factory()->NewWeakCell(callback);
+ __ Push(cell);
+ }
__ Push(name);
__ Push(value());
__ PushReturnAddressFrom(scratch1());
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