mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
849bd62a26
SIL differentiability witnesses are a new top-level SIL construct mapping "original" SIL functions to derivative SIL functions. SIL differentiability witnesses have the following components: - "Original" `SILFunction`. - SIL linkage. - Differentiability parameter indices (`IndexSubset`). - Differentiability result indices (`IndexSubset`). - Derivative `GenericSignature` representing differentiability generic requirements (optional). - JVP derivative `SILFunction` (optional). - VJP derivative `SILFunction` (optional). - "Is serialized?" bit. This patch adds the `SILDifferentiabilityWitness` data structure, with documentation, parsing, and printing. Resolves TF-911. Todos: - TF-1136: upstream `SILDifferentiabilityWitness` serialization. - TF-1137: upstream `SILDifferentiabilityWitness` verification. - TF-1138: upstream `SILDifferentiabilityWitness` SILGen from `@differentiable` and `@derivative` attributes. - TF-20: robust mangling for `SILDifferentiabilityWitness` names.
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
//===--- ParseSILSupport.h - Interface with ParseSIL ------------*- C++ -*-===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See https://swift.org/LICENSE.txt for license information
|
|
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SWIFT_PARSER_PARSESILSUPPORT_H
|
|
#define SWIFT_PARSER_PARSESILSUPPORT_H
|
|
|
|
#include "llvm/Support/PrettyStackTrace.h"
|
|
|
|
namespace swift {
|
|
class Parser;
|
|
|
|
/// Interface between the Parse and ParseSIL libraries, to avoid circular
|
|
/// dependencies.
|
|
class SILParserTUStateBase {
|
|
virtual void anchor();
|
|
protected:
|
|
SILParserTUStateBase() = default;
|
|
virtual ~SILParserTUStateBase() = default;
|
|
public:
|
|
virtual bool parseDeclSIL(Parser &P) = 0;
|
|
virtual bool parseDeclSILStage(Parser &P) = 0;
|
|
virtual bool parseSILVTable(Parser &P) = 0;
|
|
virtual bool parseSILGlobal(Parser &P) = 0;
|
|
virtual bool parseSILWitnessTable(Parser &P) = 0;
|
|
virtual bool parseSILDefaultWitnessTable(Parser &P) = 0;
|
|
virtual bool parseSILDifferentiabilityWitness(Parser &P) = 0;
|
|
virtual bool parseSILCoverageMap(Parser &P) = 0;
|
|
virtual bool parseSILProperty(Parser &P) = 0;
|
|
virtual bool parseSILScope(Parser &P) = 0;
|
|
};
|
|
|
|
/// To assist debugging parser crashes, tell us the location of the
|
|
/// current token.
|
|
class PrettyStackTraceParser : public llvm::PrettyStackTraceEntry {
|
|
Parser &P;
|
|
public:
|
|
explicit PrettyStackTraceParser(Parser &P) : P(P) {}
|
|
void print(llvm::raw_ostream &out) const override;
|
|
};
|
|
} // end namespace swift
|
|
|
|
#endif // SWIFT_PARSER_PARSESILSUPPORT_H
|
|
|