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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/eval/eval/gbdt.h>
#include "llvm_wrapper.h"
namespace vespalib {
namespace eval {
namespace gbdt {
/**
* GBDT forest optimizer performing automatic function de-inlining.
**/
class DeinlineForest : public Forest
{
private:
using array_function = double (*)(const double *);
LLVMWrapper _llvm_wrapper;
std::vector<array_function> _fragments;
public:
explicit DeinlineForest(const std::vector<const nodes::Node *> &trees);
static Optimize::Result optimize(const ForestStats &stats,
const std::vector<const nodes::Node *> &trees);
static double eval(const Forest *forest, const double *input);
static Optimize::Chain optimize_chain;
};
} // namespace vespalib::eval::gbdt
} // namespace vespalib::eval
} // namespace vespalib
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