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4a71042d31
Importantly this also lets us use the analysis framework to validate that we do properly invalidate DeadEndBlocks, preventing bugs. I did not thread this all over the compiler. Instead I just used it for now in SemanticARCOpts just to add some coverage without threading it into too many places.
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
//===--- DeadEndBlocksAnalysis.h ------------------------------------------===//
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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 - 2021 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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#ifndef SWIFT_SILOPTIMIZER_DEADENDBLOCKSANALYSIS_H
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#define SWIFT_SILOPTIMIZER_DEADENDBLOCKSANALYSIS_H
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#include "swift/SIL/BasicBlockUtils.h"
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#include "swift/SILOptimizer/Analysis/Analysis.h"
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namespace swift {
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class DeadEndBlocksAnalysis final : public FunctionAnalysisBase<DeadEndBlocks> {
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public:
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DeadEndBlocksAnalysis()
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: FunctionAnalysisBase<DeadEndBlocks>(SILAnalysisKind::DeadEndBlocks) {}
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DeadEndBlocksAnalysis(const DeadEndBlocksAnalysis &) = delete;
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DeadEndBlocksAnalysis &operator=(const DeadEndBlocksAnalysis &) = delete;
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static bool classof(const SILAnalysis *s) {
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return s->getKind() == SILAnalysisKind::DeadEndBlocks;
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}
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std::unique_ptr<DeadEndBlocks> newFunctionAnalysis(SILFunction *f) override {
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return std::make_unique<DeadEndBlocks>(f);
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}
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bool shouldInvalidate(SILAnalysis::InvalidationKind k) override {
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return k & InvalidationKind::Branches;
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}
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protected:
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void verify(DeadEndBlocks *deBlocks) const override;
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};
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} // namespace swift
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#endif
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