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52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
//===--- Dominance.h - SIL dominance analysis ------------------*- 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 - 2015 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 file provides interfaces for computing and working with
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// control-flow dominance in SIL.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_SIL_DOMINANCE_H
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#define SWIFT_SIL_DOMINANCE_H
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#include "llvm/Support/GenericDomTree.h"
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#include "swift/SIL/CFG.h"
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extern template class llvm::DominatorTreeBase<swift::SILBasicBlock>;
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extern template class llvm::DominatorBase<swift::SILBasicBlock>;
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extern template class llvm::DomTreeNodeBase<swift::SILBasicBlock>;
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namespace swift {
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typedef llvm::DomTreeNodeBase<SILBasicBlock> DominanceInfoNode;
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/// A class for computing basic dominance information.
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class DominanceInfo : public llvm::DominatorTreeBase<SILBasicBlock> {
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public:
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DominanceInfo(SILFunction *F);
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/// Does instruction A properly dominate instruction B?
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bool properlyDominates(SILInstruction *a, SILInstruction *b);
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using DominatorTreeBase::properlyDominates;
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};
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/// A class for computing basic post-dominance information.
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class PostDominanceInfo : public llvm::DominatorTreeBase<SILBasicBlock> {
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public:
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PostDominanceInfo(SILFunction *F);
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};
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} // end namespace swift
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#endif
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