DBT-RISE-TGC/incl/iss/plugin/cycle_estimate.h

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 * Contributors:
 *       eyck@minres.com - initial API and implementation
 ******************************************************************************/

#ifndef _ISS_PLUGIN_CYCLE_ESTIMATE_H_
#define _ISS_PLUGIN_CYCLE_ESTIMATE_H_

#include "iss/instrumentation_if.h"
#include "iss/vm_plugin.h"
#include <string>
#include <unordered_map>
#include <vector>

namespace iss {

namespace plugin {

class cycle_estimate: public iss::vm_plugin {
	BEGIN_BF_DECL(instr_desc, uint32_t)
		BF_FIELD(taken, 24, 8)
		BF_FIELD(not_taken, 16, 8)
        BF_FIELD(is_branch, 8, 8)
        BF_FIELD(size, 0, 8)
		instr_desc(uint32_t size, uint32_t taken, uint32_t not_taken, bool branch): instr_desc() {
			this->size=size;
			this->taken=taken;
			this->not_taken=not_taken;
			this->is_branch=branch;
		}
	END_BF_DECL();

public:
    cycle_estimate() = delete;

    cycle_estimate(const cycle_estimate &) = delete;

    cycle_estimate(const cycle_estimate &&) = delete;

    cycle_estimate(std::string const& config_file_name);

    virtual ~cycle_estimate();

    cycle_estimate &operator=(const cycle_estimate &) = delete;

    cycle_estimate &operator=(const cycle_estimate &&) = delete;

    bool registration(const char *const version, vm_if &arch) override;

    sync_type get_sync() override { return POST_SYNC; };

    void callback(instr_info_t instr_info, exec_info const&) override;

private:
    iss::instrumentation_if *arch_instr;
    std::vector<instr_desc> delays;
    struct pair_hash {
        size_t operator()(const std::pair<uint64_t, uint64_t> &p) const {
            std::hash<uint64_t> hash;
            return hash(p.first) + hash(p.second);
        }
    };
    std::unordered_map<std::pair<uint64_t, uint64_t>, uint64_t, pair_hash> blocks;
    std::string config_file_name;
};
}
}

#endif /* _ISS_PLUGIN_CYCLE_ESTIMATE_H_ */