6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
48 lines
2.1 KiB
C++
48 lines
2.1 KiB
C++
//===--- LoopUnrolling.h - Unroll loops -------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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/// \file
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/// This header contains the declarations of functions which are used to decide
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/// which loops should be completely unrolled and mark their corresponding
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/// CFGBlocks. It is done by tracking a stack of loops in the ProgramState. This
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/// way specific loops can be marked as completely unrolled. For considering a
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/// loop to be completely unrolled it has to fulfill the following requirements:
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/// - Currently only forStmts can be considered.
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/// - The bound has to be known.
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/// - The counter variable has not escaped before/in the body of the loop and
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/// changed only in the increment statement corresponding to the loop. It also
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/// has to be initialized by a literal in the corresponding initStmt.
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/// - Does not contain goto, switch and returnStmt.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPUNROLLING_H
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#define LLVM_CLANG_STATICANALYZER_CORE_PATHSENSITIVE_LOOPUNROLLING_H
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#include "clang/Analysis/CFG.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/ExplodedGraph.h"
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namespace clang {
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namespace ento {
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/// Returns if the given State indicates that is inside a completely unrolled
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/// loop.
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bool isUnrolledState(ProgramStateRef State);
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/// Updates the stack of loops contained by the ProgramState.
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ProgramStateRef updateLoopStack(const Stmt *LoopStmt, ASTContext &ASTCtx,
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ExplodedNode* Pred, unsigned maxVisitOnPath);
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/// Updates the given ProgramState. In current implementation it removes the top
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/// element of the stack of loops.
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ProgramStateRef processLoopEnd(const Stmt *LoopStmt, ProgramStateRef State);
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} // end namespace ento
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} // end namespace clang
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#endif
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