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67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
//===--- VJPCloner.h - VJP function generation ----------------*- C++ -*---===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2019 - 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a helper class for generating VJP functions for automatic
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// differentiation.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_SILOPTIMIZER_UTILS_DIFFERENTIATION_VJPCLONER_H
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#define SWIFT_SILOPTIMIZER_UTILS_DIFFERENTIATION_VJPCLONER_H
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#include "swift/SILOptimizer/Analysis/DifferentiableActivityAnalysis.h"
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#include "swift/SILOptimizer/Differentiation/DifferentiationInvoker.h"
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#include "swift/SILOptimizer/Differentiation/LinearMapInfo.h"
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#include "swift/SIL/LoopInfo.h"
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namespace swift {
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namespace autodiff {
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class ADContext;
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class PullbackCloner;
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/// A helper class for generating VJP functions.
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class VJPCloner final {
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class Implementation;
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Implementation &impl;
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public:
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/// Creates a VJP cloner.
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///
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/// The parent VJP cloner stores the original function and an empty
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/// to-be-generated pullback function.
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explicit VJPCloner(ADContext &context, SILDifferentiabilityWitness *witness,
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SILFunction *vjp, DifferentiationInvoker invoker);
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~VJPCloner();
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ADContext &getContext() const;
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SILModule &getModule() const;
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SILFunction &getOriginal() const;
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SILFunction &getVJP() const;
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SILFunction &getPullback() const;
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SILDifferentiabilityWitness *getWitness() const;
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const AutoDiffConfig &getConfig() const;
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DifferentiationInvoker getInvoker() const;
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LinearMapInfo &getPullbackInfo() const;
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SILLoopInfo *getLoopInfo() const;
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const DifferentiableActivityInfo &getActivityInfo() const;
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/// Performs VJP generation on the empty VJP function. Returns true if any
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/// error occurs.
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bool run();
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};
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} // end namespace autodiff
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} // end namespace swift
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#endif // SWIFT_SILOPTIMIZER_UTILS_DIFFERENTIATION_VJPCLONER_H
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