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41c88f864a
The body of a function has to be re-analyzed for every call site of the function, which is very expensive and if the body is not changed would produce the same result. This takes about ~10% from swift-syntax overall build time in release configuration.
76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
//===--- IsSelfRecursiveAnalysis.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 - 2025 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_ISSELFRECURSIVEANALYSIS_H
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#define SWIFT_SILOPTIMIZER_ISSELFRECURSIVEANALYSIS_H
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#include "swift/SILOptimizer/Analysis/Analysis.h"
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namespace swift {
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class SILFunction;
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class IsSelfRecursive {
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const SILFunction *f;
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bool didComputeValue = false;
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bool isSelfRecursive = false;
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void compute();
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public:
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IsSelfRecursive(const SILFunction *f) : f(f) {}
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~IsSelfRecursive();
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bool isComputed() const { return didComputeValue; }
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bool get() {
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if (!didComputeValue) {
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compute();
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didComputeValue = true;
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}
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return isSelfRecursive;
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}
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SILFunction *getFunction() { return const_cast<SILFunction *>(f); }
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};
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class IsSelfRecursiveAnalysis final
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: public FunctionAnalysisBase<IsSelfRecursive> {
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public:
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IsSelfRecursiveAnalysis()
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: FunctionAnalysisBase<IsSelfRecursive>(
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SILAnalysisKind::IsSelfRecursive) {}
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IsSelfRecursiveAnalysis(const IsSelfRecursiveAnalysis &) = delete;
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IsSelfRecursiveAnalysis &operator=(const IsSelfRecursiveAnalysis &) = delete;
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static SILAnalysisKind getAnalysisKind() {
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return SILAnalysisKind::IsSelfRecursive;
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}
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static bool classof(const SILAnalysis *s) {
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return s->getKind() == SILAnalysisKind::IsSelfRecursive;
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}
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std::unique_ptr<IsSelfRecursive> newFunctionAnalysis(SILFunction *f) override {
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return std::make_unique<IsSelfRecursive>(f);
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}
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bool shouldInvalidate(SILAnalysis::InvalidationKind k) override {
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return k & InvalidationKind::Calls;
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}
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};
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} // namespace swift
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#endif
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