clang  9.0.0svn
LoopWidening.h
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1 //===--- LoopWidening.h - Widen loops ---------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 ///
9 /// This header contains the declarations of functions which are used to widen
10 /// loops which do not otherwise exit. The widening is done by invalidating
11 /// anything which might be modified by the body of the loop.
12 ///
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPWIDENING_H
16 #define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPWIDENING_H
17 
18 #include "clang/Analysis/CFG.h"
20 
21 namespace clang {
22 namespace ento {
23 
24 /// Get the states that result from widening the loop.
25 ///
26 /// Widen the loop by invalidating anything that might be modified
27 /// by the loop body in any iteration.
29  const LocationContext *LCtx,
30  unsigned BlockCount, const Stmt *LoopStmt);
31 
32 } // end namespace ento
33 } // end namespace clang
34 
35 #endif
IntrusiveRefCntPtr< const ProgramState > ProgramStateRef
ProgramStateRef getWidenedLoopState(ProgramStateRef PrevState, const LocationContext *LCtx, unsigned BlockCount, const Stmt *LoopStmt)
Get the states that result from widening the loop.
Dataflow Directional Tag Classes.