You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
630 lines
20 KiB
630 lines
20 KiB
//== AnalysisDeclContext.cpp - Analysis context for Path Sens analysis -*- C++ -*-//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines AnalysisDeclContext, a class that manages the analysis context
|
|
// data for path sensitive analysis.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "clang/Analysis/AnalysisContext.h"
|
|
#include "BodyFarm.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/Decl.h"
|
|
#include "clang/AST/DeclObjC.h"
|
|
#include "clang/AST/DeclTemplate.h"
|
|
#include "clang/AST/ParentMap.h"
|
|
#include "clang/AST/StmtVisitor.h"
|
|
#include "clang/Analysis/Analyses/CFGReachabilityAnalysis.h"
|
|
#include "clang/Analysis/Analyses/LiveVariables.h"
|
|
#include "clang/Analysis/Analyses/PseudoConstantAnalysis.h"
|
|
#include "clang/Analysis/CFG.h"
|
|
#include "clang/Analysis/CFGStmtMap.h"
|
|
#include "clang/Analysis/Support/BumpVector.h"
|
|
#include "llvm/ADT/SmallPtrSet.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/SaveAndRestore.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
using namespace clang;
|
|
|
|
typedef llvm::DenseMap<const void *, ManagedAnalysis *> ManagedAnalysisMap;
|
|
|
|
AnalysisDeclContext::AnalysisDeclContext(AnalysisDeclContextManager *Mgr,
|
|
const Decl *d,
|
|
const CFG::BuildOptions &buildOptions)
|
|
: Manager(Mgr),
|
|
D(d),
|
|
cfgBuildOptions(buildOptions),
|
|
forcedBlkExprs(nullptr),
|
|
builtCFG(false),
|
|
builtCompleteCFG(false),
|
|
ReferencedBlockVars(nullptr),
|
|
ManagedAnalyses(nullptr)
|
|
{
|
|
cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs;
|
|
}
|
|
|
|
AnalysisDeclContext::AnalysisDeclContext(AnalysisDeclContextManager *Mgr,
|
|
const Decl *d)
|
|
: Manager(Mgr),
|
|
D(d),
|
|
forcedBlkExprs(nullptr),
|
|
builtCFG(false),
|
|
builtCompleteCFG(false),
|
|
ReferencedBlockVars(nullptr),
|
|
ManagedAnalyses(nullptr)
|
|
{
|
|
cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs;
|
|
}
|
|
|
|
AnalysisDeclContextManager::AnalysisDeclContextManager(bool useUnoptimizedCFG,
|
|
bool addImplicitDtors,
|
|
bool addInitializers,
|
|
bool addTemporaryDtors,
|
|
bool synthesizeBodies,
|
|
bool addStaticInitBranch,
|
|
bool addCXXNewAllocator,
|
|
CodeInjector *injector)
|
|
: Injector(injector), SynthesizeBodies(synthesizeBodies)
|
|
{
|
|
cfgBuildOptions.PruneTriviallyFalseEdges = !useUnoptimizedCFG;
|
|
cfgBuildOptions.AddImplicitDtors = addImplicitDtors;
|
|
cfgBuildOptions.AddInitializers = addInitializers;
|
|
cfgBuildOptions.AddTemporaryDtors = addTemporaryDtors;
|
|
cfgBuildOptions.AddStaticInitBranches = addStaticInitBranch;
|
|
cfgBuildOptions.AddCXXNewAllocator = addCXXNewAllocator;
|
|
}
|
|
|
|
void AnalysisDeclContextManager::clear() {
|
|
llvm::DeleteContainerSeconds(Contexts);
|
|
}
|
|
|
|
static BodyFarm &getBodyFarm(ASTContext &C, CodeInjector *injector = nullptr) {
|
|
static BodyFarm *BF = new BodyFarm(C, injector);
|
|
return *BF;
|
|
}
|
|
|
|
Stmt *AnalysisDeclContext::getBody(bool &IsAutosynthesized) const {
|
|
IsAutosynthesized = false;
|
|
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
|
|
Stmt *Body = FD->getBody();
|
|
if (Manager && Manager->synthesizeBodies()) {
|
|
Stmt *SynthesizedBody =
|
|
getBodyFarm(getASTContext(), Manager->Injector.get()).getBody(FD);
|
|
if (SynthesizedBody) {
|
|
Body = SynthesizedBody;
|
|
IsAutosynthesized = true;
|
|
}
|
|
}
|
|
return Body;
|
|
}
|
|
else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) {
|
|
Stmt *Body = MD->getBody();
|
|
if (Manager && Manager->synthesizeBodies()) {
|
|
Stmt *SynthesizedBody =
|
|
getBodyFarm(getASTContext(), Manager->Injector.get()).getBody(MD);
|
|
if (SynthesizedBody) {
|
|
Body = SynthesizedBody;
|
|
IsAutosynthesized = true;
|
|
}
|
|
}
|
|
return Body;
|
|
} else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D))
|
|
return BD->getBody();
|
|
else if (const FunctionTemplateDecl *FunTmpl
|
|
= dyn_cast_or_null<FunctionTemplateDecl>(D))
|
|
return FunTmpl->getTemplatedDecl()->getBody();
|
|
|
|
llvm_unreachable("unknown code decl");
|
|
}
|
|
|
|
Stmt *AnalysisDeclContext::getBody() const {
|
|
bool Tmp;
|
|
return getBody(Tmp);
|
|
}
|
|
|
|
bool AnalysisDeclContext::isBodyAutosynthesized() const {
|
|
bool Tmp;
|
|
getBody(Tmp);
|
|
return Tmp;
|
|
}
|
|
|
|
bool AnalysisDeclContext::isBodyAutosynthesizedFromModelFile() const {
|
|
bool Tmp;
|
|
Stmt *Body = getBody(Tmp);
|
|
return Tmp && Body->getLocStart().isValid();
|
|
}
|
|
|
|
/// Returns true if \param VD is an Objective-C implicit 'self' parameter.
|
|
static bool isSelfDecl(const VarDecl *VD) {
|
|
return isa<ImplicitParamDecl>(VD) && VD->getName() == "self";
|
|
}
|
|
|
|
const ImplicitParamDecl *AnalysisDeclContext::getSelfDecl() const {
|
|
if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D))
|
|
return MD->getSelfDecl();
|
|
if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) {
|
|
// See if 'self' was captured by the block.
|
|
for (const auto &I : BD->captures()) {
|
|
const VarDecl *VD = I.getVariable();
|
|
if (isSelfDecl(VD))
|
|
return dyn_cast<ImplicitParamDecl>(VD);
|
|
}
|
|
}
|
|
|
|
auto *CXXMethod = dyn_cast<CXXMethodDecl>(D);
|
|
if (!CXXMethod)
|
|
return nullptr;
|
|
|
|
const CXXRecordDecl *parent = CXXMethod->getParent();
|
|
if (!parent->isLambda())
|
|
return nullptr;
|
|
|
|
for (const LambdaCapture &LC : parent->captures()) {
|
|
if (!LC.capturesVariable())
|
|
continue;
|
|
|
|
VarDecl *VD = LC.getCapturedVar();
|
|
if (isSelfDecl(VD))
|
|
return dyn_cast<ImplicitParamDecl>(VD);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void AnalysisDeclContext::registerForcedBlockExpression(const Stmt *stmt) {
|
|
if (!forcedBlkExprs)
|
|
forcedBlkExprs = new CFG::BuildOptions::ForcedBlkExprs();
|
|
// Default construct an entry for 'stmt'.
|
|
if (const Expr *e = dyn_cast<Expr>(stmt))
|
|
stmt = e->IgnoreParens();
|
|
(void) (*forcedBlkExprs)[stmt];
|
|
}
|
|
|
|
const CFGBlock *
|
|
AnalysisDeclContext::getBlockForRegisteredExpression(const Stmt *stmt) {
|
|
assert(forcedBlkExprs);
|
|
if (const Expr *e = dyn_cast<Expr>(stmt))
|
|
stmt = e->IgnoreParens();
|
|
CFG::BuildOptions::ForcedBlkExprs::const_iterator itr =
|
|
forcedBlkExprs->find(stmt);
|
|
assert(itr != forcedBlkExprs->end());
|
|
return itr->second;
|
|
}
|
|
|
|
/// Add each synthetic statement in the CFG to the parent map, using the
|
|
/// source statement's parent.
|
|
static void addParentsForSyntheticStmts(const CFG *TheCFG, ParentMap &PM) {
|
|
if (!TheCFG)
|
|
return;
|
|
|
|
for (CFG::synthetic_stmt_iterator I = TheCFG->synthetic_stmt_begin(),
|
|
E = TheCFG->synthetic_stmt_end();
|
|
I != E; ++I) {
|
|
PM.setParent(I->first, PM.getParent(I->second));
|
|
}
|
|
}
|
|
|
|
CFG *AnalysisDeclContext::getCFG() {
|
|
if (!cfgBuildOptions.PruneTriviallyFalseEdges)
|
|
return getUnoptimizedCFG();
|
|
|
|
if (!builtCFG) {
|
|
cfg = CFG::buildCFG(D, getBody(), &D->getASTContext(), cfgBuildOptions);
|
|
// Even when the cfg is not successfully built, we don't
|
|
// want to try building it again.
|
|
builtCFG = true;
|
|
|
|
if (PM)
|
|
addParentsForSyntheticStmts(cfg.get(), *PM);
|
|
|
|
// The Observer should only observe one build of the CFG.
|
|
getCFGBuildOptions().Observer = nullptr;
|
|
}
|
|
return cfg.get();
|
|
}
|
|
|
|
CFG *AnalysisDeclContext::getUnoptimizedCFG() {
|
|
if (!builtCompleteCFG) {
|
|
SaveAndRestore<bool> NotPrune(cfgBuildOptions.PruneTriviallyFalseEdges,
|
|
false);
|
|
completeCFG =
|
|
CFG::buildCFG(D, getBody(), &D->getASTContext(), cfgBuildOptions);
|
|
// Even when the cfg is not successfully built, we don't
|
|
// want to try building it again.
|
|
builtCompleteCFG = true;
|
|
|
|
if (PM)
|
|
addParentsForSyntheticStmts(completeCFG.get(), *PM);
|
|
|
|
// The Observer should only observe one build of the CFG.
|
|
getCFGBuildOptions().Observer = nullptr;
|
|
}
|
|
return completeCFG.get();
|
|
}
|
|
|
|
CFGStmtMap *AnalysisDeclContext::getCFGStmtMap() {
|
|
if (cfgStmtMap)
|
|
return cfgStmtMap.get();
|
|
|
|
if (CFG *c = getCFG()) {
|
|
cfgStmtMap.reset(CFGStmtMap::Build(c, &getParentMap()));
|
|
return cfgStmtMap.get();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
CFGReverseBlockReachabilityAnalysis *AnalysisDeclContext::getCFGReachablityAnalysis() {
|
|
if (CFA)
|
|
return CFA.get();
|
|
|
|
if (CFG *c = getCFG()) {
|
|
CFA.reset(new CFGReverseBlockReachabilityAnalysis(*c));
|
|
return CFA.get();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
void AnalysisDeclContext::dumpCFG(bool ShowColors) {
|
|
getCFG()->dump(getASTContext().getLangOpts(), ShowColors);
|
|
}
|
|
|
|
ParentMap &AnalysisDeclContext::getParentMap() {
|
|
if (!PM) {
|
|
PM.reset(new ParentMap(getBody()));
|
|
if (const CXXConstructorDecl *C = dyn_cast<CXXConstructorDecl>(getDecl())) {
|
|
for (const auto *I : C->inits()) {
|
|
PM->addStmt(I->getInit());
|
|
}
|
|
}
|
|
if (builtCFG)
|
|
addParentsForSyntheticStmts(getCFG(), *PM);
|
|
if (builtCompleteCFG)
|
|
addParentsForSyntheticStmts(getUnoptimizedCFG(), *PM);
|
|
}
|
|
return *PM;
|
|
}
|
|
|
|
PseudoConstantAnalysis *AnalysisDeclContext::getPseudoConstantAnalysis() {
|
|
if (!PCA)
|
|
PCA.reset(new PseudoConstantAnalysis(getBody()));
|
|
return PCA.get();
|
|
}
|
|
|
|
AnalysisDeclContext *AnalysisDeclContextManager::getContext(const Decl *D) {
|
|
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
|
|
// Calling 'hasBody' replaces 'FD' in place with the FunctionDecl
|
|
// that has the body.
|
|
FD->hasBody(FD);
|
|
D = FD;
|
|
}
|
|
|
|
AnalysisDeclContext *&AC = Contexts[D];
|
|
if (!AC)
|
|
AC = new AnalysisDeclContext(this, D, cfgBuildOptions);
|
|
return AC;
|
|
}
|
|
|
|
const StackFrameContext *
|
|
AnalysisDeclContext::getStackFrame(LocationContext const *Parent, const Stmt *S,
|
|
const CFGBlock *Blk, unsigned Idx) {
|
|
return getLocationContextManager().getStackFrame(this, Parent, S, Blk, Idx);
|
|
}
|
|
|
|
const BlockInvocationContext *
|
|
AnalysisDeclContext::getBlockInvocationContext(const LocationContext *parent,
|
|
const clang::BlockDecl *BD,
|
|
const void *ContextData) {
|
|
return getLocationContextManager().getBlockInvocationContext(this, parent,
|
|
BD, ContextData);
|
|
}
|
|
|
|
bool AnalysisDeclContext::isInStdNamespace(const Decl *D) {
|
|
const DeclContext *DC = D->getDeclContext()->getEnclosingNamespaceContext();
|
|
const NamespaceDecl *ND = dyn_cast<NamespaceDecl>(DC);
|
|
if (!ND)
|
|
return false;
|
|
|
|
while (const DeclContext *Parent = ND->getParent()) {
|
|
if (!isa<NamespaceDecl>(Parent))
|
|
break;
|
|
ND = cast<NamespaceDecl>(Parent);
|
|
}
|
|
|
|
return ND->isStdNamespace();
|
|
}
|
|
|
|
LocationContextManager & AnalysisDeclContext::getLocationContextManager() {
|
|
assert(Manager &&
|
|
"Cannot create LocationContexts without an AnalysisDeclContextManager!");
|
|
return Manager->getLocationContextManager();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// FoldingSet profiling.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void LocationContext::ProfileCommon(llvm::FoldingSetNodeID &ID,
|
|
ContextKind ck,
|
|
AnalysisDeclContext *ctx,
|
|
const LocationContext *parent,
|
|
const void *data) {
|
|
ID.AddInteger(ck);
|
|
ID.AddPointer(ctx);
|
|
ID.AddPointer(parent);
|
|
ID.AddPointer(data);
|
|
}
|
|
|
|
void StackFrameContext::Profile(llvm::FoldingSetNodeID &ID) {
|
|
Profile(ID, getAnalysisDeclContext(), getParent(), CallSite, Block, Index);
|
|
}
|
|
|
|
void ScopeContext::Profile(llvm::FoldingSetNodeID &ID) {
|
|
Profile(ID, getAnalysisDeclContext(), getParent(), Enter);
|
|
}
|
|
|
|
void BlockInvocationContext::Profile(llvm::FoldingSetNodeID &ID) {
|
|
Profile(ID, getAnalysisDeclContext(), getParent(), BD, ContextData);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// LocationContext creation.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
template <typename LOC, typename DATA>
|
|
const LOC*
|
|
LocationContextManager::getLocationContext(AnalysisDeclContext *ctx,
|
|
const LocationContext *parent,
|
|
const DATA *d) {
|
|
llvm::FoldingSetNodeID ID;
|
|
LOC::Profile(ID, ctx, parent, d);
|
|
void *InsertPos;
|
|
|
|
LOC *L = cast_or_null<LOC>(Contexts.FindNodeOrInsertPos(ID, InsertPos));
|
|
|
|
if (!L) {
|
|
L = new LOC(ctx, parent, d);
|
|
Contexts.InsertNode(L, InsertPos);
|
|
}
|
|
return L;
|
|
}
|
|
|
|
const StackFrameContext*
|
|
LocationContextManager::getStackFrame(AnalysisDeclContext *ctx,
|
|
const LocationContext *parent,
|
|
const Stmt *s,
|
|
const CFGBlock *blk, unsigned idx) {
|
|
llvm::FoldingSetNodeID ID;
|
|
StackFrameContext::Profile(ID, ctx, parent, s, blk, idx);
|
|
void *InsertPos;
|
|
StackFrameContext *L =
|
|
cast_or_null<StackFrameContext>(Contexts.FindNodeOrInsertPos(ID, InsertPos));
|
|
if (!L) {
|
|
L = new StackFrameContext(ctx, parent, s, blk, idx);
|
|
Contexts.InsertNode(L, InsertPos);
|
|
}
|
|
return L;
|
|
}
|
|
|
|
const ScopeContext *
|
|
LocationContextManager::getScope(AnalysisDeclContext *ctx,
|
|
const LocationContext *parent,
|
|
const Stmt *s) {
|
|
return getLocationContext<ScopeContext, Stmt>(ctx, parent, s);
|
|
}
|
|
|
|
const BlockInvocationContext *
|
|
LocationContextManager::getBlockInvocationContext(AnalysisDeclContext *ctx,
|
|
const LocationContext *parent,
|
|
const BlockDecl *BD,
|
|
const void *ContextData) {
|
|
llvm::FoldingSetNodeID ID;
|
|
BlockInvocationContext::Profile(ID, ctx, parent, BD, ContextData);
|
|
void *InsertPos;
|
|
BlockInvocationContext *L =
|
|
cast_or_null<BlockInvocationContext>(Contexts.FindNodeOrInsertPos(ID,
|
|
InsertPos));
|
|
if (!L) {
|
|
L = new BlockInvocationContext(ctx, parent, BD, ContextData);
|
|
Contexts.InsertNode(L, InsertPos);
|
|
}
|
|
return L;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// LocationContext methods.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
const StackFrameContext *LocationContext::getCurrentStackFrame() const {
|
|
const LocationContext *LC = this;
|
|
while (LC) {
|
|
if (const StackFrameContext *SFC = dyn_cast<StackFrameContext>(LC))
|
|
return SFC;
|
|
LC = LC->getParent();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool LocationContext::inTopFrame() const {
|
|
return getCurrentStackFrame()->inTopFrame();
|
|
}
|
|
|
|
bool LocationContext::isParentOf(const LocationContext *LC) const {
|
|
do {
|
|
const LocationContext *Parent = LC->getParent();
|
|
if (Parent == this)
|
|
return true;
|
|
else
|
|
LC = Parent;
|
|
} while (LC);
|
|
|
|
return false;
|
|
}
|
|
|
|
void LocationContext::dumpStack(raw_ostream &OS, StringRef Indent) const {
|
|
ASTContext &Ctx = getAnalysisDeclContext()->getASTContext();
|
|
PrintingPolicy PP(Ctx.getLangOpts());
|
|
PP.TerseOutput = 1;
|
|
|
|
unsigned Frame = 0;
|
|
for (const LocationContext *LCtx = this; LCtx; LCtx = LCtx->getParent()) {
|
|
switch (LCtx->getKind()) {
|
|
case StackFrame:
|
|
OS << Indent << '#' << Frame++ << ' ';
|
|
cast<StackFrameContext>(LCtx)->getDecl()->print(OS, PP);
|
|
OS << '\n';
|
|
break;
|
|
case Scope:
|
|
OS << Indent << " (scope)\n";
|
|
break;
|
|
case Block:
|
|
OS << Indent << " (block context: "
|
|
<< cast<BlockInvocationContext>(LCtx)->getContextData()
|
|
<< ")\n";
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
LLVM_DUMP_METHOD void LocationContext::dumpStack() const {
|
|
dumpStack(llvm::errs());
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Lazily generated map to query the external variables referenced by a Block.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
namespace {
|
|
class FindBlockDeclRefExprsVals : public StmtVisitor<FindBlockDeclRefExprsVals>{
|
|
BumpVector<const VarDecl*> &BEVals;
|
|
BumpVectorContext &BC;
|
|
llvm::SmallPtrSet<const VarDecl*, 4> Visited;
|
|
llvm::SmallPtrSet<const DeclContext*, 4> IgnoredContexts;
|
|
public:
|
|
FindBlockDeclRefExprsVals(BumpVector<const VarDecl*> &bevals,
|
|
BumpVectorContext &bc)
|
|
: BEVals(bevals), BC(bc) {}
|
|
|
|
void VisitStmt(Stmt *S) {
|
|
for (Stmt *Child : S->children())
|
|
if (Child)
|
|
Visit(Child);
|
|
}
|
|
|
|
void VisitDeclRefExpr(DeclRefExpr *DR) {
|
|
// Non-local variables are also directly modified.
|
|
if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl())) {
|
|
if (!VD->hasLocalStorage()) {
|
|
if (Visited.insert(VD).second)
|
|
BEVals.push_back(VD, BC);
|
|
}
|
|
}
|
|
}
|
|
|
|
void VisitBlockExpr(BlockExpr *BR) {
|
|
// Blocks containing blocks can transitively capture more variables.
|
|
IgnoredContexts.insert(BR->getBlockDecl());
|
|
Visit(BR->getBlockDecl()->getBody());
|
|
}
|
|
|
|
void VisitPseudoObjectExpr(PseudoObjectExpr *PE) {
|
|
for (PseudoObjectExpr::semantics_iterator it = PE->semantics_begin(),
|
|
et = PE->semantics_end(); it != et; ++it) {
|
|
Expr *Semantic = *it;
|
|
if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(Semantic))
|
|
Semantic = OVE->getSourceExpr();
|
|
Visit(Semantic);
|
|
}
|
|
}
|
|
};
|
|
} // end anonymous namespace
|
|
|
|
typedef BumpVector<const VarDecl*> DeclVec;
|
|
|
|
static DeclVec* LazyInitializeReferencedDecls(const BlockDecl *BD,
|
|
void *&Vec,
|
|
llvm::BumpPtrAllocator &A) {
|
|
if (Vec)
|
|
return (DeclVec*) Vec;
|
|
|
|
BumpVectorContext BC(A);
|
|
DeclVec *BV = (DeclVec*) A.Allocate<DeclVec>();
|
|
new (BV) DeclVec(BC, 10);
|
|
|
|
// Go through the capture list.
|
|
for (const auto &CI : BD->captures()) {
|
|
BV->push_back(CI.getVariable(), BC);
|
|
}
|
|
|
|
// Find the referenced global/static variables.
|
|
FindBlockDeclRefExprsVals F(*BV, BC);
|
|
F.Visit(BD->getBody());
|
|
|
|
Vec = BV;
|
|
return BV;
|
|
}
|
|
|
|
llvm::iterator_range<AnalysisDeclContext::referenced_decls_iterator>
|
|
AnalysisDeclContext::getReferencedBlockVars(const BlockDecl *BD) {
|
|
if (!ReferencedBlockVars)
|
|
ReferencedBlockVars = new llvm::DenseMap<const BlockDecl*,void*>();
|
|
|
|
const DeclVec *V =
|
|
LazyInitializeReferencedDecls(BD, (*ReferencedBlockVars)[BD], A);
|
|
return llvm::make_range(V->begin(), V->end());
|
|
}
|
|
|
|
ManagedAnalysis *&AnalysisDeclContext::getAnalysisImpl(const void *tag) {
|
|
if (!ManagedAnalyses)
|
|
ManagedAnalyses = new ManagedAnalysisMap();
|
|
ManagedAnalysisMap *M = (ManagedAnalysisMap*) ManagedAnalyses;
|
|
return (*M)[tag];
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Cleanup.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
ManagedAnalysis::~ManagedAnalysis() {}
|
|
|
|
AnalysisDeclContext::~AnalysisDeclContext() {
|
|
delete forcedBlkExprs;
|
|
delete ReferencedBlockVars;
|
|
// Release the managed analyses.
|
|
if (ManagedAnalyses) {
|
|
ManagedAnalysisMap *M = (ManagedAnalysisMap*) ManagedAnalyses;
|
|
llvm::DeleteContainerSeconds(*M);
|
|
delete M;
|
|
}
|
|
}
|
|
|
|
AnalysisDeclContextManager::~AnalysisDeclContextManager() {
|
|
llvm::DeleteContainerSeconds(Contexts);
|
|
}
|
|
|
|
LocationContext::~LocationContext() {}
|
|
|
|
LocationContextManager::~LocationContextManager() {
|
|
clear();
|
|
}
|
|
|
|
void LocationContextManager::clear() {
|
|
for (llvm::FoldingSet<LocationContext>::iterator I = Contexts.begin(),
|
|
E = Contexts.end(); I != E; ) {
|
|
LocationContext *LC = &*I;
|
|
++I;
|
|
delete LC;
|
|
}
|
|
|
|
Contexts.clear();
|
|
}
|
|
|