struct UnusedVariableLocator: Visitor
{
std::set<ProgramSyntax::Node *> unused_nodes;
+ std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> aggregates;
+ ProgramSyntax::Node *aggregate;
std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> assignments;
bool assignment;
+ bool record_target;
ProgramSyntax::VariableDeclaration *assignment_target;
+ bool indeterminate_target;
+ bool self_referencing;
UnusedVariableLocator();
virtual void visit(ProgramSyntax::MemberAccess &);
virtual void visit(ProgramSyntax::BinaryExpression &);
virtual void visit(ProgramSyntax::ExpressionStatement &);
+ virtual void visit(ProgramSyntax::StructDeclaration &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
+ virtual void visit(ProgramSyntax::InterfaceBlock &);
};
struct NodeRemover: Visitor
{
std::set<ProgramSyntax::Node *> to_remove;
- unsigned n_removed;
- bool immutable_block;
- bool remove_block;
-
- NodeRemover();
virtual void visit(ProgramSyntax::Block &);
- virtual void visit(ProgramSyntax::StructDeclaration &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
- virtual void visit(ProgramSyntax::InterfaceBlock &);
};
ProgramParser parser;
private:
void process();
void generate(ProgramSyntax::Stage &);
- void optimize(ProgramSyntax::Stage &);
+ bool optimize(ProgramSyntax::Stage &);
static void inject_block(ProgramSyntax::Block &, const ProgramSyntax::Block &);
template<typename T>
static void apply(ProgramSyntax::Stage &);