1 files changed, 49 insertions, 0 deletions
diff --git a/clang-r353983/include/clang/StaticAnalyzer/Core/PathSensitive/LoopUnrolling.h b/clang-r353983/include/clang/StaticAnalyzer/Core/PathSensitive/LoopUnrolling.h
new file mode 100644
index 00000000..d25d2643
--- /dev/null
+++ b/clang-r353983/include/clang/StaticAnalyzer/Core/PathSensitive/LoopUnrolling.h
@@ -0,0 +1,49 @@
+//===--- LoopUnrolling.h - Unroll loops -------------------------*- 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 header contains the declarations of functions which are used to decide
+/// which loops should be completely unrolled and mark their corresponding
+/// CFGBlocks. It is done by tracking a stack of loops in the ProgramState. This
+/// way specific loops can be marked as completely unrolled. For considering a
+/// loop to be completely unrolled it has to fulfill the following requirements:
+/// - Currently only forStmts can be considered.
+/// - The bound has to be known.
+/// - The counter variable has not escaped before/in the body of the loop and
+///   changed only in the increment statement corresponding to the loop. It also
+///   has to be initialized by a literal in the corresponding initStmt.
+/// - Does not contain goto, switch and returnStmt.
+///
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPUNROLLING_H
+#define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPUNROLLING_H
+
+#include "clang/Analysis/CFG.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/ExplodedGraph.h"
+namespace clang {
+namespace ento {
+class AnalysisManager;
+
+/// Returns if the given State indicates that is inside a completely unrolled
+/// loop.
+bool isUnrolledState(ProgramStateRef State);
+
+/// Updates the stack of loops contained by the ProgramState.
+ProgramStateRef updateLoopStack(const Stmt *LoopStmt, ASTContext &ASTCtx,
+                                ExplodedNode* Pred, unsigned maxVisitOnPath);
+
+/// Updates the given ProgramState. In current implementation it removes the top
+/// element of the stack of loops.
+ProgramStateRef processLoopEnd(const Stmt *LoopStmt, ProgramStateRef State);
+
+} // end namespace ento
+} // end namespace clang
+
+#endif