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CreationInitsOptimizer: Use PreTypedef() instead of PreType()

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PreTypedef() does not require the PreID() trampoline and ensures
it's only called for IDs that are types. Also allows dropping
the const_cast<> due to id->GetType() returning a const TypePtr which
is different from a `const Type*`...
This commit is contained in:
Arne Welzel 2023-09-12 20:21:42 +02:00
parent 384e7e6b25
commit 6c76df4e10
1 changed files with 4 additions and 14 deletions
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18
src/Type.cc
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@ -1132,26 +1132,16 @@ private:
class RecordType::CreationInitsOptimizer : public detail::TraversalCallback
{
public:
detail::TraversalCode PreID(const detail::ID* id) override
{
if ( const auto& t = id->GetType() )
HANDLE_TC_TYPE_POST(t->Traverse(this));
return detail::TC_CONTINUE;
}
detail::TraversalCode PreType(const Type* t) override
detail::TraversalCode PreTypedef(const detail::ID* id) override
{
const auto& t = id->GetType();
if ( analyzed_types.count(t) > 0 )
return detail::TC_ABORTSTMT;
analyzed_types.emplace(t);
if ( t->Tag() == TYPE_RECORD )
{
auto* rt = const_cast<RecordType*>(t->AsRecordType());
OptimizeCreationInits(rt);
}
OptimizeCreationInits(t->AsRecordType());
return detail::TC_CONTINUE;
}
@ -1176,7 +1166,7 @@ private:
}
// Endless recursion avoidance.
std::unordered_set<const Type*> analyzed_types;
std::unordered_set<TypePtr> analyzed_types;
};
RecordType::RecordType(type_decl_list* arg_types) : Type(TYPE_RECORD)