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Unified Diff: src/ast.h

Issue 32263002: Add a soft-deopt in keyed element access when current IC is pre-monomorphic and no type feedback wa… (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 2 months ago
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Index: src/ast.h
diff --git a/src/ast.h b/src/ast.h
index 4b2010f07773f148a4f416bb5f71031a1e5b20d7..b4f7348eee314eaac011db31d3b238b877d7ef82 100644
--- a/src/ast.h
+++ b/src/ast.h
@@ -1669,6 +1669,10 @@ class Property V8_FINAL : public Expression {
return STANDARD_STORE;
}
bool IsUninitialized() { return is_uninitialized_; }
+ bool IsPreMonomorphic() { return is_pre_monomorphic_; }
+ bool HasNoTypeInformation() {
+ return is_uninitialized_ || is_pre_monomorphic_;
+ }
TypeFeedbackId PropertyFeedbackId() { return reuse(id()); }
protected:
@@ -1681,6 +1685,7 @@ class Property V8_FINAL : public Expression {
key_(key),
load_id_(GetNextId(isolate)),
is_monomorphic_(false),
+ is_pre_monomorphic_(false),
is_uninitialized_(false),
is_string_access_(false),
is_function_prototype_(false) { }
@@ -1692,6 +1697,7 @@ class Property V8_FINAL : public Expression {
SmallMapList receiver_types_;
bool is_monomorphic_ : 1;
+ bool is_pre_monomorphic_ : 1;
bool is_uninitialized_ : 1;
bool is_string_access_ : 1;
bool is_function_prototype_ : 1;
@@ -2098,6 +2104,10 @@ class Assignment V8_FINAL : public Expression {
void RecordTypeFeedback(TypeFeedbackOracle* oracle, Zone* zone);
virtual bool IsMonomorphic() V8_OVERRIDE { return is_monomorphic_; }
bool IsUninitialized() { return is_uninitialized_; }
+ bool IsPreMonomorphic() { return is_pre_monomorphic_; }
+ bool HasNoTypeInformation() {
+ return is_uninitialized_ || is_pre_monomorphic_;
+ }
virtual SmallMapList* GetReceiverTypes() V8_OVERRIDE {
return &receiver_types_;
}
@@ -2130,6 +2140,7 @@ class Assignment V8_FINAL : public Expression {
bool is_monomorphic_ : 1;
bool is_uninitialized_ : 1;
+ bool is_pre_monomorphic_ : 1;
KeyedAccessStoreMode store_mode_ : 5; // Windows treats as signed,
// must have extra bit.
SmallMapList receiver_types_;
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