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976401157f
Fixes a regression in the source compatibility suite which I had a lot of trouble extracting into a separate test case. Most of this patch is just moving the outlining code into a separate file and organizing it into a helper class instead of copy/pasting so much code. The main functional change is implicit in the difference between collecting formal metadata and collecting it for layout, which then is exploited in bindMetadataParameters. As a secondary change, stop collecting metadata for class-bounded archetypes; we don't actually need it to do value operations.
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
//===--- Outlining.h - Value operation outlining ----------------*- 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) 2014 - 2017 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 interfaces for outlining value witnesses.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_IRGEN_OUTLINING_H
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#define SWIFT_IRGEN_OUTLINING_H
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#include "swift/Basic/LLVM.h"
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#include "llvm/ADT/MapVector.h"
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namespace llvm {
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class Value;
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class Type;
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}
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namespace swift {
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class CanGenericSignature;
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class CanType;
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enum IsInitialization_t : bool;
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enum IsTake_t : bool;
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class SILType;
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namespace irgen {
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class Address;
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class Explosion;
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class IRGenFunction;
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class IRGenModule;
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class LocalTypeDataKey;
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class TypeInfo;
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/// A helper class for emitting outlined value operations.
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///
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/// The use-pattern for this class is:
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/// - construct it
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/// - collect all the metadata that will be required in order to perform
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/// the value operations
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/// - emit the call to the outlined copy/destroy helper
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class OutliningMetadataCollector {
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public:
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IRGenFunction &IGF;
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private:
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llvm::MapVector<LocalTypeDataKey, llvm::Value *> Values;
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friend class IRGenModule;
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public:
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OutliningMetadataCollector(IRGenFunction &IGF) : IGF(IGF) {}
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void collectFormalTypeMetadata(CanType type);
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void collectTypeMetadataForLayout(SILType type);
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void emitCallToOutlinedCopy(Address dest, Address src,
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SILType T, const TypeInfo &ti,
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IsInitialization_t isInit, IsTake_t isTake) const;
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void emitCallToOutlinedDestroy(Address addr, SILType T,
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const TypeInfo &ti) const;
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private:
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void addMetadataArguments(SmallVectorImpl<llvm::Value *> &args) const ;
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void addMetadataParameterTypes(SmallVectorImpl<llvm::Type *> ¶mTys) const;
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void bindMetadataParameters(IRGenFunction &helperIGF,
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Explosion ¶ms) const;
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};
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std::pair<CanType, CanGenericSignature>
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getTypeAndGenericSignatureForManglingOutlineFunction(SILType type);
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}
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}
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#endif
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