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1339b5403b
Correct format: //===--- Name of file - Description ----------------------------*- Lang -*-===//
59 lines
2.4 KiB
C++
59 lines
2.4 KiB
C++
//===--- Devirtualize.h - Helper for devirtualizing apply -------*- 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 - 2016 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 http://swift.org/LICENSE.txt for license information
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// See http://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 contains helper functions that perform the work of devirtualizing a
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// given apply when possible.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_SIL_DEVIRTUALIZE_H
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#define SWIFT_SIL_DEVIRTUALIZE_H
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#include "swift/AST/Decl.h"
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#include "swift/AST/Types.h"
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#include "swift/SIL/SILDeclRef.h"
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#include "swift/SIL/SILFunction.h"
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#include "swift/SIL/SILInstruction.h"
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#include "swift/SIL/SILModule.h"
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#include "swift/SIL/SILType.h"
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#include "swift/SIL/SILValue.h"
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#include "swift/SILOptimizer/Analysis/ClassHierarchyAnalysis.h"
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#include "swift/SILOptimizer/Utils/Local.h"
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#include "llvm/ADT/ArrayRef.h"
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namespace swift {
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/// A pair representing results of devirtualization.
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/// - The first element is the value representing the result of the
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/// devirtualized call.
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/// - The second element is the new apply/try_apply instruction.
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/// If no devirtualization was possible, the pair:
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/// <nullptr, FullApplySite()> is returned.
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///
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/// Two elements are required, because a result of the new devirtualized
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/// apply/try_apply instruction (second element) eventually needs to be
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/// casted to produce a properly typed value (first element).
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typedef std::pair<ValueBase *, ApplySite> DevirtualizationResult;
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DevirtualizationResult tryDevirtualizeApply(FullApplySite AI);
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DevirtualizationResult tryDevirtualizeApply(FullApplySite AI,
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ClassHierarchyAnalysis *CHA);
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bool isNominalTypeWithUnboundGenericParameters(SILType Ty, SILModule &M);
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bool canDevirtualizeClassMethod(FullApplySite AI, SILType ClassInstanceType);
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DevirtualizationResult devirtualizeClassMethod(FullApplySite AI,
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SILValue ClassInstance);
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DevirtualizationResult tryDevirtualizeClassMethod(FullApplySite AI,
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SILValue ClassInstance);
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DevirtualizationResult tryDevirtualizeWitnessMethod(ApplySite AI);
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}
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#endif
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