simplifyBitwise.h

#ifndef MIDEND_SIMPLIFYBITWISE_H_
#define MIDEND_SIMPLIFYBITWISE_H_
 
#include "ir/ir.h"
#include "ir/visitor.h"
#include "lib/ordered_set.h"
 
namespace P4 {

class SimplifyBitwise : public Transform {
    IR::Vector<IR::StatOrDecl> *slice_statements = nullptr;
    const IR::BaseAssignmentStatement *changing_as = nullptr;
 
    void assignSlices(const IR::Expression *expr, big_int mask);
 
 public:
    const IR::Node *preorder(IR::BaseAssignmentStatement *as) override;
    const IR::Node *preorder(IR::OpAssignmentStatement *as) override { return as; }
    const IR::Node *preorder(IR::BAndAssign *as) override {
        return preorder(static_cast<IR::BaseAssignmentStatement *>(as));
    }
    const IR::Node *preorder(IR::BOrAssign *as) override {
        return preorder(static_cast<IR::BaseAssignmentStatement *>(as));
    }
    const IR::Node *preorder(IR::BXorAssign *as) override {
        return preorder(static_cast<IR::BaseAssignmentStatement *>(as));
    }
};
 
}  // namespace P4
 
#endif /* MIDEND_SIMPLIFYBITWISE_H_ */