AnalysisDeclContext.cpp revision 7fa9b4f258636d89342eda28f21a986c8ac353b1
11d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek//== AnalysisDeclContext.cpp - Analysis context for Path Sens analysis -*- C++ -*-// 297ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// 397ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// The LLVM Compiler Infrastructure 497ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// 597ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// This file is distributed under the University of Illinois Open Source 697ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// License. See LICENSE.TXT for details. 797ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// 897ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu//===----------------------------------------------------------------------===// 997ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// 101d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek// This file defines AnalysisDeclContext, a class that manages the analysis context 1197ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// data for path sensitive analysis. 1297ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu// 1397ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu//===----------------------------------------------------------------------===// 1497ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 1597ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu#include "clang/AST/Decl.h" 1697ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu#include "clang/AST/DeclObjC.h" 17fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump#include "clang/AST/DeclTemplate.h" 1897ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu#include "clang/AST/ParentMap.h" 19b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek#include "clang/AST/StmtVisitor.h" 202cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek#include "clang/Analysis/Analyses/LiveVariables.h" 21db34ab70961ca4b24b600eb47053d7af304659f5Tom Care#include "clang/Analysis/Analyses/PseudoConstantAnalysis.h" 2242461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek#include "clang/Analysis/Analyses/CFGReachabilityAnalysis.h" 232cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek#include "clang/Analysis/AnalysisContext.h" 242cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek#include "clang/Analysis/CFG.h" 25283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek#include "clang/Analysis/CFGStmtMap.h" 26b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek#include "clang/Analysis/Support/BumpVector.h" 27b2c60b04a597cc5ba4154837cf8e0a155a376fd7Argyrios Kyrtzidis#include "llvm/Support/SaveAndRestore.h" 289b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer#include "llvm/ADT/SmallPtrSet.h" 2987a05f1fe8ae14044f182b015b279e0a6f4cbdd1Mike Stump#include "llvm/Support/ErrorHandling.h" 3097ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 3197ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xuusing namespace clang; 3297ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 33a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenektypedef llvm::DenseMap<const void *, ManagedAnalysis *> ManagedAnalysisMap; 34a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek 351d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::AnalysisDeclContext(AnalysisDeclContextManager *Mgr, 36b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek const Decl *d, 37bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek const CFG::BuildOptions &buildOptions) 38b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek : Manager(Mgr), 39b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek D(d), 40bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions(buildOptions), 41b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek forcedBlkExprs(0), 42bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCFG(false), 43bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCompleteCFG(false), 44a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ReferencedBlockVars(0), 45a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalyses(0) 46bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek{ 47b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs; 48bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek} 49bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek 501d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::AnalysisDeclContext(AnalysisDeclContextManager *Mgr, 51d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose const Decl *d) 52b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek: Manager(Mgr), 53b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek D(d), 54bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek forcedBlkExprs(0), 55bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCFG(false), 56bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCompleteCFG(false), 57a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ReferencedBlockVars(0), 58a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalyses(0) 59bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek{ 60bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs; 61bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek} 62bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek 631d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContextManager::AnalysisDeclContextManager(bool useUnoptimizedCFG, 64bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek bool addImplicitDtors, 65bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek bool addInitializers) { 66bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions.PruneTriviallyFalseEdges = !useUnoptimizedCFG; 67b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgBuildOptions.AddImplicitDtors = addImplicitDtors; 68b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgBuildOptions.AddInitializers = addInitializers; 69b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek} 70b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek 711d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekvoid AnalysisDeclContextManager::clear() { 7258f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek for (ContextMap::iterator I = Contexts.begin(), E = Contexts.end(); I!=E; ++I) 7358f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek delete I->second; 7458f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek Contexts.clear(); 7558f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek} 7658f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek 771d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekStmt *AnalysisDeclContext::getBody() const { 782376002038c8b904acd20be754aedd1a7471be71Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 7997ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu return FD->getBody(); 802376002038c8b904acd20be754aedd1a7471be71Ted Kremenek else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 8197ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu return MD->getBody(); 8230a45344c827a8346f6ecfda56b7811d1e031767Ted Kremenek else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 8330a45344c827a8346f6ecfda56b7811d1e031767Ted Kremenek return BD->getBody(); 84fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump else if (const FunctionTemplateDecl *FunTmpl 85fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump = dyn_cast_or_null<FunctionTemplateDecl>(D)) 86fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump return FunTmpl->getTemplatedDecl()->getBody(); 8797ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 889f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unknown code decl"); 8997ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 9097ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 911d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekconst ImplicitParamDecl *AnalysisDeclContext::getSelfDecl() const { 9282cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 9382cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek return MD->getSelfDecl(); 94ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { 95ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek // See if 'self' was captured by the block. 96ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek for (BlockDecl::capture_const_iterator it = BD->capture_begin(), 97ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek et = BD->capture_end(); it != et; ++it) { 98ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek const VarDecl *VD = it->getVariable(); 99ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek if (VD->getName() == "self") 100ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek return dyn_cast<ImplicitParamDecl>(VD); 101ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek } 102ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek } 1031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10482cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek return NULL; 10582cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek} 10682cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek 1071d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekvoid AnalysisDeclContext::registerForcedBlockExpression(const Stmt *stmt) { 1080d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek if (!forcedBlkExprs) 1090d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek forcedBlkExprs = new CFG::BuildOptions::ForcedBlkExprs(); 1100d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek // Default construct an entry for 'stmt'. 111ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose if (const Expr *e = dyn_cast<Expr>(stmt)) 112ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose stmt = e->IgnoreParens(); 1130d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek (void) (*forcedBlkExprs)[stmt]; 1140d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek} 1150d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek 1160d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenekconst CFGBlock * 1171d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::getBlockForRegisteredExpression(const Stmt *stmt) { 1180d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek assert(forcedBlkExprs); 119ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose if (const Expr *e = dyn_cast<Expr>(stmt)) 120ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose stmt = e->IgnoreParens(); 1210d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek CFG::BuildOptions::ForcedBlkExprs::const_iterator itr = 1220d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek forcedBlkExprs->find(stmt); 1230d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek assert(itr != forcedBlkExprs->end()); 1240d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek return itr->second; 1250d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek} 1260d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek 1271d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFG *AnalysisDeclContext::getCFG() { 128bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek if (!cfgBuildOptions.PruneTriviallyFalseEdges) 1299b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek return getUnoptimizedCFG(); 1309b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek 131d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek if (!builtCFG) { 132b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfg.reset(CFG::buildCFG(D, getBody(), 133b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek &D->getASTContext(), cfgBuildOptions)); 134d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek // Even when the cfg is not successfully built, we don't 135d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek // want to try building it again. 136d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek builtCFG = true; 137d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek } 138b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return cfg.get(); 13997ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 14097ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 1411d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFG *AnalysisDeclContext::getUnoptimizedCFG() { 142ad5a894df1841698c824381b414630799adc26caTed Kremenek if (!builtCompleteCFG) { 143bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek SaveAndRestore<bool> NotPrune(cfgBuildOptions.PruneTriviallyFalseEdges, 144bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek false); 145bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek completeCFG.reset(CFG::buildCFG(D, getBody(), &D->getASTContext(), 146bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions)); 147ad5a894df1841698c824381b414630799adc26caTed Kremenek // Even when the cfg is not successfully built, we don't 148ad5a894df1841698c824381b414630799adc26caTed Kremenek // want to try building it again. 149ad5a894df1841698c824381b414630799adc26caTed Kremenek builtCompleteCFG = true; 150ad5a894df1841698c824381b414630799adc26caTed Kremenek } 151b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return completeCFG.get(); 152ad5a894df1841698c824381b414630799adc26caTed Kremenek} 153ad5a894df1841698c824381b414630799adc26caTed Kremenek 1541d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFGStmtMap *AnalysisDeclContext::getCFGStmtMap() { 155283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek if (cfgStmtMap) 156b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return cfgStmtMap.get(); 157283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 158283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek if (CFG *c = getCFG()) { 159b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgStmtMap.reset(CFGStmtMap::Build(c, &getParentMap())); 160b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return cfgStmtMap.get(); 161283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek } 162283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 163283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek return 0; 164283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek} 16542461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek 1661d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFGReverseBlockReachabilityAnalysis *AnalysisDeclContext::getCFGReachablityAnalysis() { 16742461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek if (CFA) 168b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return CFA.get(); 16942461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek 17042461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek if (CFG *c = getCFG()) { 171af13d5b25b360e698cc1cf1055ad7d14e008e505Ted Kremenek CFA.reset(new CFGReverseBlockReachabilityAnalysis(*c)); 172b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return CFA.get(); 17342461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek } 174283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 17542461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek return 0; 17642461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek} 177283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 178682060c5d95f6e4f79536013781ab0870cdd3850Ted Kremenekvoid AnalysisDeclContext::dumpCFG(bool ShowColors) { 1794e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getCFG()->dump(getASTContext().getLangOpts(), ShowColors); 18004eeba43040969c05cfcb563195ef5b199297b62Anders Carlsson} 18104eeba43040969c05cfcb563195ef5b199297b62Anders Carlsson 1821d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekParentMap &AnalysisDeclContext::getParentMap() { 1831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!PM) 184b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek PM.reset(new ParentMap(getBody())); 18597ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu return *PM; 18697ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 18797ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 1881d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekPseudoConstantAnalysis *AnalysisDeclContext::getPseudoConstantAnalysis() { 189245adabd97c8c770c13935a9075f2243cc6f1d57Tom Care if (!PCA) 190b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek PCA.reset(new PseudoConstantAnalysis(getBody())); 191b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return PCA.get(); 192245adabd97c8c770c13935a9075f2243cc6f1d57Tom Care} 193245adabd97c8c770c13935a9075f2243cc6f1d57Tom Care 194d200187bd27f9ad68699693a6e57f9ee3ff260faJordy RoseAnalysisDeclContext *AnalysisDeclContextManager::getContext(const Decl *D) { 1951d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *&AC = Contexts[D]; 1962376002038c8b904acd20be754aedd1a7471be71Ted Kremenek if (!AC) 197d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose AC = new AnalysisDeclContext(this, D, cfgBuildOptions); 1982376002038c8b904acd20be754aedd1a7471be71Ted Kremenek return AC; 19997ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 20018c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 201b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenekconst StackFrameContext * 2021d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::getStackFrame(LocationContext const *Parent, const Stmt *S, 203b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek const CFGBlock *Blk, unsigned Idx) { 204b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek return getLocationContextManager().getStackFrame(this, Parent, S, Blk, Idx); 205b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek} 206b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek 2077fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenekconst BlockInvocationContext * 2087fa9b4f258636d89342eda28f21a986c8ac353b1Ted KremenekAnalysisDeclContext::getBlockInvocationContext(const LocationContext *parent, 2097fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const clang::BlockDecl *BD, 2107fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const void *ContextData) { 2117fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek return getLocationContextManager().getBlockInvocationContext(this, parent, 2127fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek BD, ContextData); 2137fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek} 2147fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek 2151d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager & AnalysisDeclContext::getLocationContextManager() { 216b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek assert(Manager && 2171d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek "Cannot create LocationContexts without an AnalysisDeclContextManager!"); 218b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek return Manager->getLocationContextManager(); 219b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek} 220b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek 221dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 222dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek// FoldingSet profiling. 223dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 224dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 225dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid LocationContext::ProfileCommon(llvm::FoldingSetNodeID &ID, 226dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek ContextKind ck, 2271d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *ctx, 228dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek const LocationContext *parent, 2299c378f705405d37f49795d5e915989de774fe11fTed Kremenek const void *data) { 2300ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ID.AddInteger(ck); 2310ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ID.AddPointer(ctx); 2320ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ID.AddPointer(parent); 233dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek ID.AddPointer(data); 234dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek} 235dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 236dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid StackFrameContext::Profile(llvm::FoldingSetNodeID &ID) { 2371d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek Profile(ID, getAnalysisDeclContext(), getParent(), CallSite, Block, Index); 23818c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu} 23918c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 240dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid ScopeContext::Profile(llvm::FoldingSetNodeID &ID) { 2411d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek Profile(ID, getAnalysisDeclContext(), getParent(), Enter); 24218c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu} 24318c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 244dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid BlockInvocationContext::Profile(llvm::FoldingSetNodeID &ID) { 2457fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek Profile(ID, getAnalysisDeclContext(), getParent(), BD, ContextData); 246dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek} 247dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 248dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 2490ee4124012950d7bb853438629b8e7652febf183Ted Kremenek// LocationContext creation. 250dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 251dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 2520ee4124012950d7bb853438629b8e7652febf183Ted Kremenektemplate <typename LOC, typename DATA> 2530ee4124012950d7bb853438629b8e7652febf183Ted Kremenekconst LOC* 2541d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager::getLocationContext(AnalysisDeclContext *ctx, 2550ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const LocationContext *parent, 2560ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const DATA *d) { 2570ee4124012950d7bb853438629b8e7652febf183Ted Kremenek llvm::FoldingSetNodeID ID; 2580ee4124012950d7bb853438629b8e7652febf183Ted Kremenek LOC::Profile(ID, ctx, parent, d); 2590ee4124012950d7bb853438629b8e7652febf183Ted Kremenek void *InsertPos; 260d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 2610ee4124012950d7bb853438629b8e7652febf183Ted Kremenek LOC *L = cast_or_null<LOC>(Contexts.FindNodeOrInsertPos(ID, InsertPos)); 262d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 2630ee4124012950d7bb853438629b8e7652febf183Ted Kremenek if (!L) { 2640ee4124012950d7bb853438629b8e7652febf183Ted Kremenek L = new LOC(ctx, parent, d); 2650ee4124012950d7bb853438629b8e7652febf183Ted Kremenek Contexts.InsertNode(L, InsertPos); 2660ee4124012950d7bb853438629b8e7652febf183Ted Kremenek } 2670ee4124012950d7bb853438629b8e7652febf183Ted Kremenek return L; 26858f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek} 26958f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek 2700ee4124012950d7bb853438629b8e7652febf183Ted Kremenekconst StackFrameContext* 2711d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager::getStackFrame(AnalysisDeclContext *ctx, 27254c809b19444a01444f36e93d1d28c9a5668484cTed Kremenek const LocationContext *parent, 273892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek const Stmt *s, 274d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu const CFGBlock *blk, unsigned idx) { 27562d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu llvm::FoldingSetNodeID ID; 276892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek StackFrameContext::Profile(ID, ctx, parent, s, blk, idx); 27762d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu void *InsertPos; 278d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek StackFrameContext *L = 27962d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu cast_or_null<StackFrameContext>(Contexts.FindNodeOrInsertPos(ID, InsertPos)); 28062d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu if (!L) { 281892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek L = new StackFrameContext(ctx, parent, s, blk, idx); 28262d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu Contexts.InsertNode(L, InsertPos); 28362d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu } 28462d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu return L; 28518c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu} 28618c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 2870ee4124012950d7bb853438629b8e7652febf183Ted Kremenekconst ScopeContext * 2881d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager::getScope(AnalysisDeclContext *ctx, 2890ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const LocationContext *parent, 2900ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const Stmt *s) { 2910ee4124012950d7bb853438629b8e7652febf183Ted Kremenek return getLocationContext<ScopeContext, Stmt>(ctx, parent, s); 2920ee4124012950d7bb853438629b8e7652febf183Ted Kremenek} 29318c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 2947fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenekconst BlockInvocationContext * 2957fa9b4f258636d89342eda28f21a986c8ac353b1Ted KremenekLocationContextManager::getBlockInvocationContext(AnalysisDeclContext *ctx, 2967fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const LocationContext *parent, 2977fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const BlockDecl *BD, 2987fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const void *ContextData) { 2997fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek llvm::FoldingSetNodeID ID; 3007fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek BlockInvocationContext::Profile(ID, ctx, parent, BD, ContextData); 3017fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek void *InsertPos; 3027fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek BlockInvocationContext *L = 3037fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek cast_or_null<BlockInvocationContext>(Contexts.FindNodeOrInsertPos(ID, 3047fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek InsertPos)); 3057fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek if (!L) { 3067fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek L = new BlockInvocationContext(ctx, parent, BD, ContextData); 3077fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek Contexts.InsertNode(L, InsertPos); 3087fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek } 3097fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek return L; 3107fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek} 3117fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek 312b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 31367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek// LocationContext methods. 31467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek//===----------------------------------------------------------------------===// 31567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 31667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekconst StackFrameContext *LocationContext::getCurrentStackFrame() const { 31767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const LocationContext *LC = this; 31867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek while (LC) { 31967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek if (const StackFrameContext *SFC = dyn_cast<StackFrameContext>(LC)) 32067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return SFC; 32167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek LC = LC->getParent(); 32267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 32367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return NULL; 32467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek} 32567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 3268ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xubool LocationContext::isParentOf(const LocationContext *LC) const { 3278ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu do { 3288ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu const LocationContext *Parent = LC->getParent(); 3298ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu if (Parent == this) 3308ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu return true; 3318ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu else 3328ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu LC = Parent; 3338ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu } while (LC); 3348ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu 3358ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu return false; 3368ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu} 3378ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu 33867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek//===----------------------------------------------------------------------===// 339b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek// Lazily generated map to query the external variables referenced by a Block. 340b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 341b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 342b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremeneknamespace { 343b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenekclass FindBlockDeclRefExprsVals : public StmtVisitor<FindBlockDeclRefExprsVals>{ 344b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVector<const VarDecl*> &BEVals; 345b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVectorContext &BC; 3469b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer llvm::SmallPtrSet<const VarDecl*, 4> Visited; 3479b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer llvm::SmallPtrSet<const DeclContext*, 4> IgnoredContexts; 348b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenekpublic: 349b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek FindBlockDeclRefExprsVals(BumpVector<const VarDecl*> &bevals, 350b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVectorContext &bc) 351b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek : BEVals(bevals), BC(bc) {} 3522cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek 3532cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek bool IsTrackedDecl(const VarDecl *VD) { 3542cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek const DeclContext *DC = VD->getDeclContext(); 3552cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek return IgnoredContexts.count(DC) == 0; 3562cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek } 3572cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek 358b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek void VisitStmt(Stmt *S) { 3597502c1d3ce8bb97bcc4f7bebef507040bd93b26fJohn McCall for (Stmt::child_range I = S->children(); I; ++I) 360b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek if (Stmt *child = *I) 361b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek Visit(child); 362b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek } 36385248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek 36415ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek void VisitDeclRefExpr(DeclRefExpr *DR) { 36585248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek // Non-local variables are also directly modified. 3669b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl())) { 36785248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek if (!VD->hasLocalStorage()) { 3689b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer if (Visited.insert(VD)) 36985248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek BEVals.push_back(VD, BC); 370f4b88a45902af1802a1cb42ba48b1c474474f228John McCall } else if (DR->refersToEnclosingLocal()) { 3719b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer if (Visited.insert(VD) && IsTrackedDecl(VD)) 3729b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer BEVals.push_back(VD, BC); 37385248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek } 3749b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer } 37585248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek } 3762cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek 3772cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek void VisitBlockExpr(BlockExpr *BR) { 3782cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek // Blocks containing blocks can transitively capture more variables. 3792cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek IgnoredContexts.insert(BR->getBlockDecl()); 3802cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek Visit(BR->getBlockDecl()->getBody()); 3812cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek } 38215ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek 38315ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek void VisitPseudoObjectExpr(PseudoObjectExpr *PE) { 38415ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek for (PseudoObjectExpr::semantics_iterator it = PE->semantics_begin(), 38515ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek et = PE->semantics_end(); it != et; ++it) { 38615ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek Expr *Semantic = *it; 38715ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Semantic)) 38815ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek Semantic = OVE->getSourceExpr(); 38915ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek Visit(Semantic); 39015ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek } 39115ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek } 392d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek}; 393b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} // end anonymous namespace 394b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 395b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenektypedef BumpVector<const VarDecl*> DeclVec; 396b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 397b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenekstatic DeclVec* LazyInitializeReferencedDecls(const BlockDecl *BD, 398b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek void *&Vec, 399b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek llvm::BumpPtrAllocator &A) { 400b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek if (Vec) 401b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek return (DeclVec*) Vec; 402d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 403b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVectorContext BC(A); 404b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek DeclVec *BV = (DeclVec*) A.Allocate<DeclVec>(); 405b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek new (BV) DeclVec(BC, 10); 406d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 407b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek // Find the referenced variables. 408b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek FindBlockDeclRefExprsVals F(*BV, BC); 409b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek F.Visit(BD->getBody()); 410d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 411d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek Vec = BV; 412b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek return BV; 413b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 414b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 4151d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekstd::pair<AnalysisDeclContext::referenced_decls_iterator, 4161d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext::referenced_decls_iterator> 4171d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::getReferencedBlockVars(const BlockDecl *BD) { 418b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek if (!ReferencedBlockVars) 419b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek ReferencedBlockVars = new llvm::DenseMap<const BlockDecl*,void*>(); 420d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 421b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek DeclVec *V = LazyInitializeReferencedDecls(BD, (*ReferencedBlockVars)[BD], A); 422b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek return std::make_pair(V->begin(), V->end()); 423b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 424b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 4251d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekManagedAnalysis *&AnalysisDeclContext::getAnalysisImpl(const void *tag) { 426a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek if (!ManagedAnalyses) 427a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalyses = new ManagedAnalysisMap(); 428a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalysisMap *M = (ManagedAnalysisMap*) ManagedAnalyses; 429a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek return (*M)[tag]; 430a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek} 431a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek 432b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 433b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek// Cleanup. 434b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 435b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 436a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted KremenekManagedAnalysis::~ManagedAnalysis() {} 437a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek 4381d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::~AnalysisDeclContext() { 439b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek delete forcedBlkExprs; 440b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek delete ReferencedBlockVars; 441a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek // Release the managed analyses. 442a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek if (ManagedAnalyses) { 443a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalysisMap *M = (ManagedAnalysisMap*) ManagedAnalyses; 444a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek for (ManagedAnalysisMap::iterator I = M->begin(), E = M->end(); I!=E; ++I) 445a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek delete I->second; 446a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek delete M; 447a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek } 448b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 449b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 4501d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContextManager::~AnalysisDeclContextManager() { 451b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek for (ContextMap::iterator I = Contexts.begin(), E = Contexts.end(); I!=E; ++I) 452b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek delete I->second; 453b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 4540ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 4550ee4124012950d7bb853438629b8e7652febf183Ted KremenekLocationContext::~LocationContext() {} 4560ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 4570ee4124012950d7bb853438629b8e7652febf183Ted KremenekLocationContextManager::~LocationContextManager() { 4580ee4124012950d7bb853438629b8e7652febf183Ted Kremenek clear(); 4590ee4124012950d7bb853438629b8e7652febf183Ted Kremenek} 4600ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 4610ee4124012950d7bb853438629b8e7652febf183Ted Kremenekvoid LocationContextManager::clear() { 4620ee4124012950d7bb853438629b8e7652febf183Ted Kremenek for (llvm::FoldingSet<LocationContext>::iterator I = Contexts.begin(), 463d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek E = Contexts.end(); I != E; ) { 4640ee4124012950d7bb853438629b8e7652febf183Ted Kremenek LocationContext *LC = &*I; 4650ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ++I; 4660ee4124012950d7bb853438629b8e7652febf183Ted Kremenek delete LC; 4670ee4124012950d7bb853438629b8e7652febf183Ted Kremenek } 468d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 4690ee4124012950d7bb853438629b8e7652febf183Ted Kremenek Contexts.clear(); 4700ee4124012950d7bb853438629b8e7652febf183Ted Kremenek} 4710ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 472