Merge "Update prebuilt Clang to r353983." into p9.0HEADp9.0-backupp9.0

1 files changed, 92 insertions, 0 deletions

diff --git a/clang-r353983/include/clang/StaticAnalyzer/Core/PathSensitive/SimpleConstraintManager.h b/clang-r353983/include/clang/StaticAnalyzer/Core/PathSensitive/SimpleConstraintManager.h
new file mode 100644
index 00000000..6bf5e94a
--- /dev/null
+++ b/clang-r353983/include/clang/StaticAnalyzer/Core/PathSensitive/SimpleConstraintManager.h
@@ -0,0 +1,92 @@
+//== SimpleConstraintManager.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
+//
+//===----------------------------------------------------------------------===//
+//
+//  Simplified constraint manager backend.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_SIMPLECONSTRAINTMANAGER_H
+#define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_SIMPLECONSTRAINTMANAGER_H
+
+#include "clang/StaticAnalyzer/Core/PathSensitive/ConstraintManager.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
+
+namespace clang {
+
+namespace ento {
+
+class SimpleConstraintManager : public ConstraintManager {
+  SubEngine *SU;
+  SValBuilder &SVB;
+
+public:
+  SimpleConstraintManager(SubEngine *subengine, SValBuilder &SB)
+      : SU(subengine), SVB(SB) {}
+
+  ~SimpleConstraintManager() override;
+
+  //===------------------------------------------------------------------===//
+  // Implementation for interface from ConstraintManager.
+  //===------------------------------------------------------------------===//
+
+  /// Ensures that the DefinedSVal conditional is expressed as a NonLoc by
+  /// creating boolean casts to handle Loc's.
+  ProgramStateRef assume(ProgramStateRef State, DefinedSVal Cond,
+                         bool Assumption) override;
+
+  ProgramStateRef assumeInclusiveRange(ProgramStateRef State, NonLoc Value,
+                                       const llvm::APSInt &From,
+                                       const llvm::APSInt &To,
+                                       bool InRange) override;
+
+protected:
+  //===------------------------------------------------------------------===//
+  // Interface that subclasses must implement.
+  //===------------------------------------------------------------------===//
+
+  /// Given a symbolic expression that can be reasoned about, assume that it is
+  /// true/false and generate the new program state.
+  virtual ProgramStateRef assumeSym(ProgramStateRef State, SymbolRef Sym,
+                                    bool Assumption) = 0;
+
+  /// Given a symbolic expression within the range [From, To], assume that it is
+  /// true/false and generate the new program state.
+  /// This function is used to handle case ranges produced by a language
+  /// extension for switch case statements.
+  virtual ProgramStateRef assumeSymInclusiveRange(ProgramStateRef State,
+                                                  SymbolRef Sym,
+                                                  const llvm::APSInt &From,
+                                                  const llvm::APSInt &To,
+                                                  bool InRange) = 0;
+
+  /// Given a symbolic expression that cannot be reasoned about, assume that
+  /// it is zero/nonzero and add it directly to the solver state.
+  virtual ProgramStateRef assumeSymUnsupported(ProgramStateRef State,
+                                               SymbolRef Sym,
+                                               bool Assumption) = 0;
+
+  //===------------------------------------------------------------------===//
+  // Internal implementation.
+  //===------------------------------------------------------------------===//
+
+  SValBuilder &getSValBuilder() const { return SVB; }
+  BasicValueFactory &getBasicVals() const { return SVB.getBasicValueFactory(); }
+  SymbolManager &getSymbolManager() const { return SVB.getSymbolManager(); }
+
+private:
+  ProgramStateRef assume(ProgramStateRef State, NonLoc Cond, bool Assumption);
+
+  ProgramStateRef assumeAux(ProgramStateRef State, NonLoc Cond,
+                            bool Assumption);
+};
+
+} // end namespace ento
+
+} // end namespace clang
+
+#endif