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- `Mangle::ASTMangler::mangleAutoDiffDerivativeFunction()` and `Mangle::ASTMangler::mangleAutoDiffLinearMap()` accept original function declarations and return a mangled name for a derivative function or linear map. This is called during SILGen and TBDGen. - `Mangle::DifferentiationMangler` handles differentiation function mangling in the differentiation transform. This part is necessary because we need to perform demangling on the original function and remangle it as part of a differentiation function mangling tree in order to get the correct substitutions in the mangled derivative generic signature. A mangled differentiation function name includes: - The original function. - The differentiation function kind. - The parameter indices for differentiation. - The result indices for differentiation. - The derivative generic signature.
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
//===--- JVPCloner.h - JVP 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 JVP 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_JVPCLONER_H
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#define SWIFT_SILOPTIMIZER_UTILS_DIFFERENTIATION_JVPCLONER_H
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#include "swift/SILOptimizer/Differentiation/DifferentiationInvoker.h"
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namespace swift {
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class SILFunction;
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class SILDifferentiabilityWitness;
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namespace autodiff {
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class ADContext;
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/// A helper class for generating JVP functions.
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class JVPCloner final {
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class Implementation;
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Implementation &impl;
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public:
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/// Creates a JVP cloner.
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///
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/// The parent JVP cloner stores the original function and an empty
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/// to-be-generated pullback function.
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explicit JVPCloner(ADContext &context, SILDifferentiabilityWitness *witness,
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SILFunction *jvp, DifferentiationInvoker invoker);
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~JVPCloner();
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/// Performs JVP generation on the empty JVP function. Returns true if any
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/// error occurs.
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bool run();
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SILFunction &getJVP() const;
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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_JVPCLONER_H
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