1 files changed, 47 insertions, 0 deletions
diff --git a/contrib/llvm-project/clang/include/clang/Analysis/FlowSensitive/NoopAnalysis.h b/contrib/llvm-project/clang/include/clang/Analysis/FlowSensitive/NoopAnalysis.h
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index 000000000000..4f05f5f4554b
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+++ b/contrib/llvm-project/clang/include/clang/Analysis/FlowSensitive/NoopAnalysis.h
@@ -0,0 +1,47 @@
+//===-- NoopAnalysis.h ------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines a NoopAnalysis class that just uses the builtin transfer.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOPANALYSIS_H
+#define LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOPANALYSIS_H
+
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/Stmt.h"
+#include "clang/Analysis/FlowSensitive/DataflowAnalysis.h"
+#include "clang/Analysis/FlowSensitive/DataflowEnvironment.h"
+#include "clang/Analysis/FlowSensitive/NoopLattice.h"
+
+namespace clang {
+namespace dataflow {
+
+class NoopAnalysis : public DataflowAnalysis<NoopAnalysis, NoopLattice> {
+public:
+  /// Deprecated. Use the `DataflowAnalysisOptions` constructor instead.
+  NoopAnalysis(ASTContext &Context, bool ApplyBuiltinTransfer)
+      : DataflowAnalysis<NoopAnalysis, NoopLattice>(Context,
+                                                    ApplyBuiltinTransfer) {}
+
+  /// `ApplyBuiltinTransfer` controls whether to run the built-in transfer
+  /// functions that model memory during the analysis. Their results are not
+  /// used by `NoopAnalysis`, but tests that need to inspect the environment
+  /// should enable them.
+  NoopAnalysis(ASTContext &Context, DataflowAnalysisOptions Options)
+      : DataflowAnalysis<NoopAnalysis, NoopLattice>(Context, Options) {}
+
+  static NoopLattice initialElement() { return {}; }
+
+  void transfer(const Stmt *S, NoopLattice &E, Environment &Env) {}
+};
+
+} // namespace dataflow
+} // namespace clang
+
+#endif // LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_NOOPANALYSIS_H