AnalysisDeclContext.cpp revision a43df9539644bf1c258e12710cd69d79b0b078cd
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 15471c8b49982d1132f30b0b0da27fef94fd6e4f67Benjamin Kramer#include "clang/AST/ASTContext.h" 1697ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu#include "clang/AST/Decl.h" 1797ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu#include "clang/AST/DeclObjC.h" 18fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump#include "clang/AST/DeclTemplate.h" 1997ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu#include "clang/AST/ParentMap.h" 20b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek#include "clang/AST/StmtVisitor.h" 212cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek#include "clang/Analysis/Analyses/LiveVariables.h" 22db34ab70961ca4b24b600eb47053d7af304659f5Tom Care#include "clang/Analysis/Analyses/PseudoConstantAnalysis.h" 2342461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek#include "clang/Analysis/Analyses/CFGReachabilityAnalysis.h" 242cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek#include "clang/Analysis/AnalysisContext.h" 252cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek#include "clang/Analysis/CFG.h" 26283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek#include "clang/Analysis/CFGStmtMap.h" 27b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek#include "clang/Analysis/Support/BumpVector.h" 28b2c60b04a597cc5ba4154837cf8e0a155a376fd7Argyrios Kyrtzidis#include "llvm/Support/SaveAndRestore.h" 299b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer#include "llvm/ADT/SmallPtrSet.h" 3087a05f1fe8ae14044f182b015b279e0a6f4cbdd1Mike Stump#include "llvm/Support/ErrorHandling.h" 3197ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 32a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek#include "BodyFarm.h" 33a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek 3497ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xuusing namespace clang; 3597ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 36a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenektypedef llvm::DenseMap<const void *, ManagedAnalysis *> ManagedAnalysisMap; 37a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek 381d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::AnalysisDeclContext(AnalysisDeclContextManager *Mgr, 39a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek const Decl *d, 40a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek const CFG::BuildOptions &buildOptions) 41b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek : Manager(Mgr), 42b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek D(d), 43bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions(buildOptions), 44b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek forcedBlkExprs(0), 45bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCFG(false), 46bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCompleteCFG(false), 47a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ReferencedBlockVars(0), 48a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalyses(0) 49bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek{ 50b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs; 51bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek} 52bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek 531d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::AnalysisDeclContext(AnalysisDeclContextManager *Mgr, 54a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek const Decl *d) 55b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek: Manager(Mgr), 56b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek D(d), 57bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek forcedBlkExprs(0), 58bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCFG(false), 59bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek builtCompleteCFG(false), 60a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ReferencedBlockVars(0), 61a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalyses(0) 62bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek{ 63bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs; 64bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek} 65bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek 661d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContextManager::AnalysisDeclContextManager(bool useUnoptimizedCFG, 675a1ffe98b04120846a15f7105905b5f363b08635Jordan Rose bool addImplicitDtors, 685a1ffe98b04120846a15f7105905b5f363b08635Jordan Rose bool addInitializers, 69a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek bool addTemporaryDtors, 70a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek bool synthesizeBodies) 71a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek : SynthesizeBodies(synthesizeBodies) 72a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek{ 73bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions.PruneTriviallyFalseEdges = !useUnoptimizedCFG; 74b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgBuildOptions.AddImplicitDtors = addImplicitDtors; 75b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgBuildOptions.AddInitializers = addInitializers; 765a1ffe98b04120846a15f7105905b5f363b08635Jordan Rose cfgBuildOptions.AddTemporaryDtors = addTemporaryDtors; 77b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek} 78b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek 791d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekvoid AnalysisDeclContextManager::clear() { 8058f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek for (ContextMap::iterator I = Contexts.begin(), E = Contexts.end(); I!=E; ++I) 8158f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek delete I->second; 8258f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek Contexts.clear(); 8358f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek} 8458f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek 85a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenekstatic BodyFarm &getBodyFarm(ASTContext &C) { 86a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek static BodyFarm *BF = new BodyFarm(C); 87a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek return *BF; 88a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek} 89a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek 901d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekStmt *AnalysisDeclContext::getBody() const { 91a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 92a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek Stmt *Body = FD->getBody(); 93a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek if (!Body && Manager && Manager->synthesizeBodies()) 94a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek return getBodyFarm(getASTContext()).getBody(FD); 95a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek return Body; 96a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek } 972376002038c8b904acd20be754aedd1a7471be71Ted Kremenek else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 9897ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu return MD->getBody(); 9930a45344c827a8346f6ecfda56b7811d1e031767Ted Kremenek else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 10030a45344c827a8346f6ecfda56b7811d1e031767Ted Kremenek return BD->getBody(); 101fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump else if (const FunctionTemplateDecl *FunTmpl 102fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump = dyn_cast_or_null<FunctionTemplateDecl>(D)) 103fa6ef180c0d3609124217387618fbb51bbdd2e48Mike Stump return FunTmpl->getTemplatedDecl()->getBody(); 10497ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 1059f61aa9e280adea9fbf3365f0e4f6ed568c9885aJeffrey Yasskin llvm_unreachable("unknown code decl"); 10697ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 10797ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 1081d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekconst ImplicitParamDecl *AnalysisDeclContext::getSelfDecl() const { 10982cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 11082cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek return MD->getSelfDecl(); 111ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) { 112ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek // See if 'self' was captured by the block. 113ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek for (BlockDecl::capture_const_iterator it = BD->capture_begin(), 114ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek et = BD->capture_end(); it != et; ++it) { 115ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek const VarDecl *VD = it->getVariable(); 116ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek if (VD->getName() == "self") 117ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek return dyn_cast<ImplicitParamDecl>(VD); 118ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek } 119ccf1bfde160c03c677ba530c9dcb77365a9c2d7bTed Kremenek } 1201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12182cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek return NULL; 12282cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek} 12382cd37cf1cccde162d1f13eda6cdfe1398216f36Ted Kremenek 1241d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekvoid AnalysisDeclContext::registerForcedBlockExpression(const Stmt *stmt) { 1250d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek if (!forcedBlkExprs) 1260d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek forcedBlkExprs = new CFG::BuildOptions::ForcedBlkExprs(); 1270d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek // Default construct an entry for 'stmt'. 128ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose if (const Expr *e = dyn_cast<Expr>(stmt)) 129ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose stmt = e->IgnoreParens(); 1300d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek (void) (*forcedBlkExprs)[stmt]; 1310d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek} 1320d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek 1330d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenekconst CFGBlock * 1341d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::getBlockForRegisteredExpression(const Stmt *stmt) { 1350d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek assert(forcedBlkExprs); 136ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose if (const Expr *e = dyn_cast<Expr>(stmt)) 137ac73ea8c12772fd0dcec71b83c193a2837de7f8bJordy Rose stmt = e->IgnoreParens(); 1380d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek CFG::BuildOptions::ForcedBlkExprs::const_iterator itr = 1390d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek forcedBlkExprs->find(stmt); 1400d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek assert(itr != forcedBlkExprs->end()); 1410d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek return itr->second; 1420d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek} 1430d28d360b5559abda755e50b855ba5e59727d9cdTed Kremenek 1441d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFG *AnalysisDeclContext::getCFG() { 145bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek if (!cfgBuildOptions.PruneTriviallyFalseEdges) 1469b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek return getUnoptimizedCFG(); 1479b823e8e1ccb8a2cb49923bad22a80ca96f41f92Ted Kremenek 148d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek if (!builtCFG) { 149b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfg.reset(CFG::buildCFG(D, getBody(), 150b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek &D->getASTContext(), cfgBuildOptions)); 151d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek // Even when the cfg is not successfully built, we don't 152d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek // want to try building it again. 153d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek builtCFG = true; 154d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek } 155b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return cfg.get(); 15697ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 15797ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 1581d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFG *AnalysisDeclContext::getUnoptimizedCFG() { 159ad5a894df1841698c824381b414630799adc26caTed Kremenek if (!builtCompleteCFG) { 160bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek SaveAndRestore<bool> NotPrune(cfgBuildOptions.PruneTriviallyFalseEdges, 161bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek false); 162bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek completeCFG.reset(CFG::buildCFG(D, getBody(), &D->getASTContext(), 163bc5cb8a5fe2b88f917d47ceb58b53696a121e57eTed Kremenek cfgBuildOptions)); 164ad5a894df1841698c824381b414630799adc26caTed Kremenek // Even when the cfg is not successfully built, we don't 165ad5a894df1841698c824381b414630799adc26caTed Kremenek // want to try building it again. 166ad5a894df1841698c824381b414630799adc26caTed Kremenek builtCompleteCFG = true; 167ad5a894df1841698c824381b414630799adc26caTed Kremenek } 168b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return completeCFG.get(); 169ad5a894df1841698c824381b414630799adc26caTed Kremenek} 170ad5a894df1841698c824381b414630799adc26caTed Kremenek 1711d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFGStmtMap *AnalysisDeclContext::getCFGStmtMap() { 172283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek if (cfgStmtMap) 173b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return cfgStmtMap.get(); 174283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 175283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek if (CFG *c = getCFG()) { 176b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek cfgStmtMap.reset(CFGStmtMap::Build(c, &getParentMap())); 177b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return cfgStmtMap.get(); 178283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek } 179283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 180283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek return 0; 181283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek} 18242461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek 1831d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekCFGReverseBlockReachabilityAnalysis *AnalysisDeclContext::getCFGReachablityAnalysis() { 18442461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek if (CFA) 185b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return CFA.get(); 18642461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek 18742461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek if (CFG *c = getCFG()) { 188af13d5b25b360e698cc1cf1055ad7d14e008e505Ted Kremenek CFA.reset(new CFGReverseBlockReachabilityAnalysis(*c)); 189b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return CFA.get(); 19042461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek } 191283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 19242461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek return 0; 19342461eecee98fff3671b3c14ce10f1a9e18cc95cTed Kremenek} 194283a358aecb75e30fcd486f2206f6c03c5e7f11dTed Kremenek 195682060c5d95f6e4f79536013781ab0870cdd3850Ted Kremenekvoid AnalysisDeclContext::dumpCFG(bool ShowColors) { 1964e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie getCFG()->dump(getASTContext().getLangOpts(), ShowColors); 19704eeba43040969c05cfcb563195ef5b199297b62Anders Carlsson} 19804eeba43040969c05cfcb563195ef5b199297b62Anders Carlsson 1991d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekParentMap &AnalysisDeclContext::getParentMap() { 2001d3ca251f9891623fac0dbe70eece42564e274edJordan Rose if (!PM) { 201b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek PM.reset(new ParentMap(getBody())); 2021d3ca251f9891623fac0dbe70eece42564e274edJordan Rose if (const CXXConstructorDecl *C = dyn_cast<CXXConstructorDecl>(getDecl())) { 2031d3ca251f9891623fac0dbe70eece42564e274edJordan Rose for (CXXConstructorDecl::init_const_iterator I = C->init_begin(), 2041d3ca251f9891623fac0dbe70eece42564e274edJordan Rose E = C->init_end(); 2051d3ca251f9891623fac0dbe70eece42564e274edJordan Rose I != E; ++I) { 2061d3ca251f9891623fac0dbe70eece42564e274edJordan Rose PM->addStmt((*I)->getInit()); 2071d3ca251f9891623fac0dbe70eece42564e274edJordan Rose } 2081d3ca251f9891623fac0dbe70eece42564e274edJordan Rose } 2091d3ca251f9891623fac0dbe70eece42564e274edJordan Rose } 21097ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu return *PM; 21197ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 21297ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu 2131d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekPseudoConstantAnalysis *AnalysisDeclContext::getPseudoConstantAnalysis() { 214245adabd97c8c770c13935a9075f2243cc6f1d57Tom Care if (!PCA) 215b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek PCA.reset(new PseudoConstantAnalysis(getBody())); 216b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek return PCA.get(); 217245adabd97c8c770c13935a9075f2243cc6f1d57Tom Care} 218245adabd97c8c770c13935a9075f2243cc6f1d57Tom Care 219d200187bd27f9ad68699693a6e57f9ee3ff260faJordy RoseAnalysisDeclContext *AnalysisDeclContextManager::getContext(const Decl *D) { 220a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 221a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek FD->hasBody(FD); 222a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek D = FD; 223a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek } 224a43df9539644bf1c258e12710cd69d79b0b078cdTed Kremenek 2251d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *&AC = Contexts[D]; 2262376002038c8b904acd20be754aedd1a7471be71Ted Kremenek if (!AC) 227d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose AC = new AnalysisDeclContext(this, D, cfgBuildOptions); 2282376002038c8b904acd20be754aedd1a7471be71Ted Kremenek return AC; 22997ab3941effe1f508c7113d9aa0c2887774f6fa8Zhongxing Xu} 23018c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 231b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenekconst StackFrameContext * 2321d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::getStackFrame(LocationContext const *Parent, const Stmt *S, 233b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek const CFGBlock *Blk, unsigned Idx) { 234b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek return getLocationContextManager().getStackFrame(this, Parent, S, Blk, Idx); 235b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek} 236b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek 2377fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenekconst BlockInvocationContext * 2387fa9b4f258636d89342eda28f21a986c8ac353b1Ted KremenekAnalysisDeclContext::getBlockInvocationContext(const LocationContext *parent, 2397fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const clang::BlockDecl *BD, 2407fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const void *ContextData) { 2417fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek return getLocationContextManager().getBlockInvocationContext(this, parent, 2427fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek BD, ContextData); 2437fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek} 2447fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek 2451d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager & AnalysisDeclContext::getLocationContextManager() { 246b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek assert(Manager && 2471d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek "Cannot create LocationContexts without an AnalysisDeclContextManager!"); 248b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek return Manager->getLocationContextManager(); 249b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek} 250b1b5daf30d2597e066936772bd206500232d7d65Ted Kremenek 251dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 252dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek// FoldingSet profiling. 253dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 254dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 255dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid LocationContext::ProfileCommon(llvm::FoldingSetNodeID &ID, 256dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek ContextKind ck, 2571d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext *ctx, 258dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek const LocationContext *parent, 2599c378f705405d37f49795d5e915989de774fe11fTed Kremenek const void *data) { 2600ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ID.AddInteger(ck); 2610ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ID.AddPointer(ctx); 2620ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ID.AddPointer(parent); 263dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek ID.AddPointer(data); 264dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek} 265dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 266dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid StackFrameContext::Profile(llvm::FoldingSetNodeID &ID) { 2671d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek Profile(ID, getAnalysisDeclContext(), getParent(), CallSite, Block, Index); 26818c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu} 26918c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 270dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid ScopeContext::Profile(llvm::FoldingSetNodeID &ID) { 2711d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek Profile(ID, getAnalysisDeclContext(), getParent(), Enter); 27218c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu} 27318c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 274dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenekvoid BlockInvocationContext::Profile(llvm::FoldingSetNodeID &ID) { 2757fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek Profile(ID, getAnalysisDeclContext(), getParent(), BD, ContextData); 276dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek} 277dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 278dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 2790ee4124012950d7bb853438629b8e7652febf183Ted Kremenek// LocationContext creation. 280dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek//===----------------------------------------------------------------------===// 281dc0d909f0f6684159c8475db1a15967e5613cb27Ted Kremenek 2820ee4124012950d7bb853438629b8e7652febf183Ted Kremenektemplate <typename LOC, typename DATA> 2830ee4124012950d7bb853438629b8e7652febf183Ted Kremenekconst LOC* 2841d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager::getLocationContext(AnalysisDeclContext *ctx, 2850ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const LocationContext *parent, 2860ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const DATA *d) { 2870ee4124012950d7bb853438629b8e7652febf183Ted Kremenek llvm::FoldingSetNodeID ID; 2880ee4124012950d7bb853438629b8e7652febf183Ted Kremenek LOC::Profile(ID, ctx, parent, d); 2890ee4124012950d7bb853438629b8e7652febf183Ted Kremenek void *InsertPos; 290d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 2910ee4124012950d7bb853438629b8e7652febf183Ted Kremenek LOC *L = cast_or_null<LOC>(Contexts.FindNodeOrInsertPos(ID, InsertPos)); 292d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 2930ee4124012950d7bb853438629b8e7652febf183Ted Kremenek if (!L) { 2940ee4124012950d7bb853438629b8e7652febf183Ted Kremenek L = new LOC(ctx, parent, d); 2950ee4124012950d7bb853438629b8e7652febf183Ted Kremenek Contexts.InsertNode(L, InsertPos); 2960ee4124012950d7bb853438629b8e7652febf183Ted Kremenek } 2970ee4124012950d7bb853438629b8e7652febf183Ted Kremenek return L; 29858f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek} 29958f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek 3000ee4124012950d7bb853438629b8e7652febf183Ted Kremenekconst StackFrameContext* 3011d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager::getStackFrame(AnalysisDeclContext *ctx, 30254c809b19444a01444f36e93d1d28c9a5668484cTed Kremenek const LocationContext *parent, 303892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek const Stmt *s, 304d706434b0231c76fd9acf30060646a7aa8f69aefZhongxing Xu const CFGBlock *blk, unsigned idx) { 30562d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu llvm::FoldingSetNodeID ID; 306892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek StackFrameContext::Profile(ID, ctx, parent, s, blk, idx); 30762d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu void *InsertPos; 308d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek StackFrameContext *L = 30962d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu cast_or_null<StackFrameContext>(Contexts.FindNodeOrInsertPos(ID, InsertPos)); 31062d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu if (!L) { 311892697dd2287caf7c29aaaa82909b0e90b8b63feTed Kremenek L = new StackFrameContext(ctx, parent, s, blk, idx); 31262d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu Contexts.InsertNode(L, InsertPos); 31362d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu } 31462d399e1880aacd9dc494fce374245b0da915adaZhongxing Xu return L; 31518c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu} 31618c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 3170ee4124012950d7bb853438629b8e7652febf183Ted Kremenekconst ScopeContext * 3181d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekLocationContextManager::getScope(AnalysisDeclContext *ctx, 3190ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const LocationContext *parent, 3200ee4124012950d7bb853438629b8e7652febf183Ted Kremenek const Stmt *s) { 3210ee4124012950d7bb853438629b8e7652febf183Ted Kremenek return getLocationContext<ScopeContext, Stmt>(ctx, parent, s); 3220ee4124012950d7bb853438629b8e7652febf183Ted Kremenek} 32318c7c06033cafe8c0cdcbe5759c802728688b49fZhongxing Xu 3247fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenekconst BlockInvocationContext * 3257fa9b4f258636d89342eda28f21a986c8ac353b1Ted KremenekLocationContextManager::getBlockInvocationContext(AnalysisDeclContext *ctx, 3267fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const LocationContext *parent, 3277fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const BlockDecl *BD, 3287fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek const void *ContextData) { 3297fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek llvm::FoldingSetNodeID ID; 3307fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek BlockInvocationContext::Profile(ID, ctx, parent, BD, ContextData); 3317fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek void *InsertPos; 3327fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek BlockInvocationContext *L = 3337fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek cast_or_null<BlockInvocationContext>(Contexts.FindNodeOrInsertPos(ID, 3347fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek InsertPos)); 3357fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek if (!L) { 3367fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek L = new BlockInvocationContext(ctx, parent, BD, ContextData); 3377fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek Contexts.InsertNode(L, InsertPos); 3387fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek } 3397fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek return L; 3407fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek} 3417fa9b4f258636d89342eda28f21a986c8ac353b1Ted Kremenek 342b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 34367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek// LocationContext methods. 34467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek//===----------------------------------------------------------------------===// 34567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 34667d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenekconst StackFrameContext *LocationContext::getCurrentStackFrame() const { 34767d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek const LocationContext *LC = this; 34867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek while (LC) { 34967d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek if (const StackFrameContext *SFC = dyn_cast<StackFrameContext>(LC)) 35067d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return SFC; 35167d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek LC = LC->getParent(); 35267d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek } 35367d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek return NULL; 35467d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek} 35567d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek 3568ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xubool LocationContext::isParentOf(const LocationContext *LC) const { 3578ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu do { 3588ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu const LocationContext *Parent = LC->getParent(); 3598ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu if (Parent == this) 3608ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu return true; 3618ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu else 3628ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu LC = Parent; 3638ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu } while (LC); 3648ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu 3658ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu return false; 3668ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu} 3678ddf7cead8a67342a4584a203e0bf736b7efedbeZhongxing Xu 36867d1287035767f4f6c8ca0c2bb755990012a44caTed Kremenek//===----------------------------------------------------------------------===// 369b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek// Lazily generated map to query the external variables referenced by a Block. 370b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 371b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 372b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremeneknamespace { 373b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenekclass FindBlockDeclRefExprsVals : public StmtVisitor<FindBlockDeclRefExprsVals>{ 374b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVector<const VarDecl*> &BEVals; 375b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVectorContext &BC; 3769b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer llvm::SmallPtrSet<const VarDecl*, 4> Visited; 3779b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer llvm::SmallPtrSet<const DeclContext*, 4> IgnoredContexts; 378b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenekpublic: 379b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek FindBlockDeclRefExprsVals(BumpVector<const VarDecl*> &bevals, 380b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVectorContext &bc) 381b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek : BEVals(bevals), BC(bc) {} 3822cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek 3832cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek bool IsTrackedDecl(const VarDecl *VD) { 3842cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek const DeclContext *DC = VD->getDeclContext(); 3852cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek return IgnoredContexts.count(DC) == 0; 3862cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek } 3872cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek 388b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek void VisitStmt(Stmt *S) { 3897502c1d3ce8bb97bcc4f7bebef507040bd93b26fJohn McCall for (Stmt::child_range I = S->children(); I; ++I) 390b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek if (Stmt *child = *I) 391b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek Visit(child); 392b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek } 39385248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek 39415ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek void VisitDeclRefExpr(DeclRefExpr *DR) { 39585248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek // Non-local variables are also directly modified. 3969b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl())) { 39785248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek if (!VD->hasLocalStorage()) { 3989b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer if (Visited.insert(VD)) 39985248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek BEVals.push_back(VD, BC); 400f4b88a45902af1802a1cb42ba48b1c474474f228John McCall } else if (DR->refersToEnclosingLocal()) { 4019b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer if (Visited.insert(VD) && IsTrackedDecl(VD)) 4029b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer BEVals.push_back(VD, BC); 40385248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek } 4049b20a90dff2ed605153c68a5c58b6aadcdb0952bBenjamin Kramer } 40585248734f404fbb9b2f88ecd5296761a8578def6Ted Kremenek } 4062cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek 4072cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek void VisitBlockExpr(BlockExpr *BR) { 4082cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek // Blocks containing blocks can transitively capture more variables. 4092cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek IgnoredContexts.insert(BR->getBlockDecl()); 4102cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek Visit(BR->getBlockDecl()->getBody()); 4112cfe28b6a061e72c6c8726d7ecb879093a1ab7a3Ted Kremenek } 41215ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek 41315ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek void VisitPseudoObjectExpr(PseudoObjectExpr *PE) { 41415ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek for (PseudoObjectExpr::semantics_iterator it = PE->semantics_begin(), 41515ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek et = PE->semantics_end(); it != et; ++it) { 41615ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek Expr *Semantic = *it; 41715ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Semantic)) 41815ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek Semantic = OVE->getSourceExpr(); 41915ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek Visit(Semantic); 42015ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek } 42115ce164836472bfba88b30e53aa3f6ac0fb8a95dTed Kremenek } 422d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek}; 423b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} // end anonymous namespace 424b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 425b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenektypedef BumpVector<const VarDecl*> DeclVec; 426b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 427b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenekstatic DeclVec* LazyInitializeReferencedDecls(const BlockDecl *BD, 428b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek void *&Vec, 429b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek llvm::BumpPtrAllocator &A) { 430b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek if (Vec) 431b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek return (DeclVec*) Vec; 432d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 433b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek BumpVectorContext BC(A); 434b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek DeclVec *BV = (DeclVec*) A.Allocate<DeclVec>(); 435b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek new (BV) DeclVec(BC, 10); 436d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 437b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek // Find the referenced variables. 438b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek FindBlockDeclRefExprsVals F(*BV, BC); 439b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek F.Visit(BD->getBody()); 440d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 441d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek Vec = BV; 442b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek return BV; 443b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 444b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 4451d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenekstd::pair<AnalysisDeclContext::referenced_decls_iterator, 4461d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek AnalysisDeclContext::referenced_decls_iterator> 4471d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::getReferencedBlockVars(const BlockDecl *BD) { 448b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek if (!ReferencedBlockVars) 449b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek ReferencedBlockVars = new llvm::DenseMap<const BlockDecl*,void*>(); 450d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 451b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek DeclVec *V = LazyInitializeReferencedDecls(BD, (*ReferencedBlockVars)[BD], A); 452b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek return std::make_pair(V->begin(), V->end()); 453b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 454b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 4551d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekManagedAnalysis *&AnalysisDeclContext::getAnalysisImpl(const void *tag) { 456a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek if (!ManagedAnalyses) 457a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalyses = new ManagedAnalysisMap(); 458a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalysisMap *M = (ManagedAnalysisMap*) ManagedAnalyses; 459a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek return (*M)[tag]; 460a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek} 461a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek 462b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 463b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek// Cleanup. 464b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek//===----------------------------------------------------------------------===// 465b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 466a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted KremenekManagedAnalysis::~ManagedAnalysis() {} 467a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek 4681d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContext::~AnalysisDeclContext() { 469b8ad5ee345fa1fdd1fa9253f2d01f69becc88a04Ted Kremenek delete forcedBlkExprs; 470b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek delete ReferencedBlockVars; 471a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek // Release the managed analyses. 472a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek if (ManagedAnalyses) { 473a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek ManagedAnalysisMap *M = (ManagedAnalysisMap*) ManagedAnalyses; 474a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek for (ManagedAnalysisMap::iterator I = M->begin(), E = M->end(); I!=E; ++I) 475a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek delete I->second; 476a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek delete M; 477a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek } 478b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 479b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek 4801d26f48dc2eea1c07431ca1519d7034a21b9bcffTed KremenekAnalysisDeclContextManager::~AnalysisDeclContextManager() { 481b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek for (ContextMap::iterator I = Contexts.begin(), E = Contexts.end(); I!=E; ++I) 482b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek delete I->second; 483b1a7b65231e86f7da6aacbf00bcdc16c56350e65Ted Kremenek} 4840ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 4850ee4124012950d7bb853438629b8e7652febf183Ted KremenekLocationContext::~LocationContext() {} 4860ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 4870ee4124012950d7bb853438629b8e7652febf183Ted KremenekLocationContextManager::~LocationContextManager() { 4880ee4124012950d7bb853438629b8e7652febf183Ted Kremenek clear(); 4890ee4124012950d7bb853438629b8e7652febf183Ted Kremenek} 4900ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 4910ee4124012950d7bb853438629b8e7652febf183Ted Kremenekvoid LocationContextManager::clear() { 4920ee4124012950d7bb853438629b8e7652febf183Ted Kremenek for (llvm::FoldingSet<LocationContext>::iterator I = Contexts.begin(), 493d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek E = Contexts.end(); I != E; ) { 4940ee4124012950d7bb853438629b8e7652febf183Ted Kremenek LocationContext *LC = &*I; 4950ee4124012950d7bb853438629b8e7652febf183Ted Kremenek ++I; 4960ee4124012950d7bb853438629b8e7652febf183Ted Kremenek delete LC; 4970ee4124012950d7bb853438629b8e7652febf183Ted Kremenek } 498d064fdc4b7b64ca55b40b70490c79d6f569df78eTed Kremenek 4990ee4124012950d7bb853438629b8e7652febf183Ted Kremenek Contexts.clear(); 5000ee4124012950d7bb853438629b8e7652febf183Ted Kremenek} 5010ee4124012950d7bb853438629b8e7652febf183Ted Kremenek 502