summaryrefslogtreecommitdiff
path: root/lib/Analysis/AnalysisDeclContext.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Analysis/AnalysisDeclContext.cpp')
-rw-r--r--lib/Analysis/AnalysisDeclContext.cpp165
1 files changed, 99 insertions, 66 deletions
diff --git a/lib/Analysis/AnalysisDeclContext.cpp b/lib/Analysis/AnalysisDeclContext.cpp
index 181edff0a03f5..486fffbe12996 100644
--- a/lib/Analysis/AnalysisDeclContext.cpp
+++ b/lib/Analysis/AnalysisDeclContext.cpp
@@ -1,4 +1,4 @@
-//== AnalysisDeclContext.cpp - Analysis context for Path Sens analysis -*- C++ -*-//
+//===- AnalysisDeclContext.cpp - Analysis context for Path Sens analysis --===//
//
// The LLVM Compiler Infrastructure
//
@@ -7,67 +7,72 @@
//
//===----------------------------------------------------------------------===//
//
-// This file defines AnalysisDeclContext, a class that manages the analysis context
-// data for path sensitive analysis.
+// This file defines AnalysisDeclContext, a class that manages the analysis
+// context data for path sensitive analysis.
//
//===----------------------------------------------------------------------===//
#include "clang/Analysis/AnalysisDeclContext.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
+#include "clang/AST/DeclBase.h"
+#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/LambdaCapture.h"
#include "clang/AST/ParentMap.h"
+#include "clang/AST/PrettyPrinter.h"
+#include "clang/AST/Stmt.h"
+#include "clang/AST/StmtCXX.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/BodyFarm.h"
#include "clang/Analysis/CFG.h"
#include "clang/Analysis/CFGStmtMap.h"
#include "clang/Analysis/Support/BumpVector.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/SourceManager.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/ADT/iterator_range.h"
+#include "llvm/Support/Allocator.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/SaveAndRestore.h"
#include "llvm/Support/raw_ostream.h"
+#include <cassert>
+#include <memory>
using namespace clang;
-typedef llvm::DenseMap<const void *, ManagedAnalysis *> ManagedAnalysisMap;
+using ManagedAnalysisMap = llvm::DenseMap<const void *, ManagedAnalysis *>;
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)
-{
+ : Manager(Mgr), D(d), cfgBuildOptions(buildOptions) {
cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs;
}
AnalysisDeclContext::AnalysisDeclContext(AnalysisDeclContextManager *Mgr,
const Decl *d)
-: Manager(Mgr),
- D(d),
- forcedBlkExprs(nullptr),
- builtCFG(false),
- builtCompleteCFG(false),
- ReferencedBlockVars(nullptr),
- ManagedAnalyses(nullptr)
-{
+ : Manager(Mgr), D(d) {
cfgBuildOptions.forcedBlkExprs = &forcedBlkExprs;
}
AnalysisDeclContextManager::AnalysisDeclContextManager(
ASTContext &ASTCtx, bool useUnoptimizedCFG, bool addImplicitDtors,
bool addInitializers, bool addTemporaryDtors, bool addLifetime,
- bool addLoopExit, bool synthesizeBodies, bool addStaticInitBranch,
- bool addCXXNewAllocator, CodeInjector *injector)
+ bool addLoopExit, bool addScopes, bool synthesizeBodies,
+ bool addStaticInitBranch, bool addCXXNewAllocator,
+ bool addRichCXXConstructors, bool markElidedCXXConstructors,
+ CodeInjector *injector)
: Injector(injector), FunctionBodyFarm(ASTCtx, injector),
SynthesizeBodies(synthesizeBodies) {
cfgBuildOptions.PruneTriviallyFalseEdges = !useUnoptimizedCFG;
@@ -76,15 +81,18 @@ AnalysisDeclContextManager::AnalysisDeclContextManager(
cfgBuildOptions.AddTemporaryDtors = addTemporaryDtors;
cfgBuildOptions.AddLifetime = addLifetime;
cfgBuildOptions.AddLoopExit = addLoopExit;
+ cfgBuildOptions.AddScopes = addScopes;
cfgBuildOptions.AddStaticInitBranches = addStaticInitBranch;
cfgBuildOptions.AddCXXNewAllocator = addCXXNewAllocator;
+ cfgBuildOptions.AddRichCXXConstructors = addRichCXXConstructors;
+ cfgBuildOptions.MarkElidedCXXConstructors = markElidedCXXConstructors;
}
void AnalysisDeclContextManager::clear() { Contexts.clear(); }
Stmt *AnalysisDeclContext::getBody(bool &IsAutosynthesized) const {
IsAutosynthesized = false;
- if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
+ if (const auto *FD = dyn_cast<FunctionDecl>(D)) {
Stmt *Body = FD->getBody();
if (auto *CoroBody = dyn_cast_or_null<CoroutineBodyStmt>(Body))
Body = CoroBody->getBody();
@@ -97,7 +105,7 @@ Stmt *AnalysisDeclContext::getBody(bool &IsAutosynthesized) const {
}
return Body;
}
- else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) {
+ else if (const auto *MD = dyn_cast<ObjCMethodDecl>(D)) {
Stmt *Body = MD->getBody();
if (Manager && Manager->synthesizeBodies()) {
Stmt *SynthesizedBody = Manager->getBodyFarm().getBody(MD);
@@ -107,10 +115,9 @@ Stmt *AnalysisDeclContext::getBody(bool &IsAutosynthesized) const {
}
}
return Body;
- } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D))
+ } else if (const auto *BD = dyn_cast<BlockDecl>(D))
return BD->getBody();
- else if (const FunctionTemplateDecl *FunTmpl
- = dyn_cast_or_null<FunctionTemplateDecl>(D))
+ else if (const auto *FunTmpl = dyn_cast_or_null<FunctionTemplateDecl>(D))
return FunTmpl->getTemplatedDecl()->getBody();
llvm_unreachable("unknown code decl");
@@ -139,9 +146,9 @@ static bool isSelfDecl(const VarDecl *VD) {
}
const ImplicitParamDecl *AnalysisDeclContext::getSelfDecl() const {
- if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D))
+ if (const auto *MD = dyn_cast<ObjCMethodDecl>(D))
return MD->getSelfDecl();
- if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) {
+ if (const auto *BD = dyn_cast<BlockDecl>(D)) {
// See if 'self' was captured by the block.
for (const auto &I : BD->captures()) {
const VarDecl *VD = I.getVariable();
@@ -158,7 +165,7 @@ const ImplicitParamDecl *AnalysisDeclContext::getSelfDecl() const {
if (!parent->isLambda())
return nullptr;
- for (const LambdaCapture &LC : parent->captures()) {
+ for (const auto &LC : parent->captures()) {
if (!LC.capturesVariable())
continue;
@@ -174,7 +181,7 @@ 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))
+ if (const auto *e = dyn_cast<Expr>(stmt))
stmt = e->IgnoreParens();
(void) (*forcedBlkExprs)[stmt];
}
@@ -182,7 +189,7 @@ void AnalysisDeclContext::registerForcedBlockExpression(const Stmt *stmt) {
const CFGBlock *
AnalysisDeclContext::getBlockForRegisteredExpression(const Stmt *stmt) {
assert(forcedBlkExprs);
- if (const Expr *e = dyn_cast<Expr>(stmt))
+ if (const auto *e = dyn_cast<Expr>(stmt))
stmt = e->IgnoreParens();
CFG::BuildOptions::ForcedBlkExprs::const_iterator itr =
forcedBlkExprs->find(stmt);
@@ -266,13 +273,13 @@ CFGReverseBlockReachabilityAnalysis *AnalysisDeclContext::getCFGReachablityAnaly
}
void AnalysisDeclContext::dumpCFG(bool ShowColors) {
- getCFG()->dump(getASTContext().getLangOpts(), ShowColors);
+ getCFG()->dump(getASTContext().getLangOpts(), ShowColors);
}
ParentMap &AnalysisDeclContext::getParentMap() {
if (!PM) {
PM.reset(new ParentMap(getBody()));
- if (const CXXConstructorDecl *C = dyn_cast<CXXConstructorDecl>(getDecl())) {
+ if (const auto *C = dyn_cast<CXXConstructorDecl>(getDecl())) {
for (const auto *I : C->inits()) {
PM->addStmt(I->getInit());
}
@@ -292,7 +299,7 @@ PseudoConstantAnalysis *AnalysisDeclContext::getPseudoConstantAnalysis() {
}
AnalysisDeclContext *AnalysisDeclContextManager::getContext(const Decl *D) {
- if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
+ if (const auto *FD = dyn_cast<FunctionDecl>(D)) {
// Calling 'hasBody' replaces 'FD' in place with the FunctionDecl
// that has the body.
FD->hasBody(FD);
@@ -315,7 +322,7 @@ AnalysisDeclContext::getStackFrame(LocationContext const *Parent, const Stmt *S,
const BlockInvocationContext *
AnalysisDeclContext::getBlockInvocationContext(const LocationContext *parent,
- const clang::BlockDecl *BD,
+ const BlockDecl *BD,
const void *ContextData) {
return getLocationContextManager().getBlockInvocationContext(this, parent,
BD, ContextData);
@@ -323,7 +330,7 @@ AnalysisDeclContext::getBlockInvocationContext(const LocationContext *parent,
bool AnalysisDeclContext::isInStdNamespace(const Decl *D) {
const DeclContext *DC = D->getDeclContext()->getEnclosingNamespaceContext();
- const NamespaceDecl *ND = dyn_cast<NamespaceDecl>(DC);
+ const auto *ND = dyn_cast<NamespaceDecl>(DC);
if (!ND)
return false;
@@ -336,7 +343,7 @@ bool AnalysisDeclContext::isInStdNamespace(const Decl *D) {
return ND->isStdNamespace();
}
-LocationContextManager & AnalysisDeclContext::getLocationContextManager() {
+LocationContextManager &AnalysisDeclContext::getLocationContextManager() {
assert(Manager &&
"Cannot create LocationContexts without an AnalysisDeclContextManager!");
return Manager->getLocationContextManager();
@@ -399,7 +406,7 @@ LocationContextManager::getStackFrame(AnalysisDeclContext *ctx,
llvm::FoldingSetNodeID ID;
StackFrameContext::Profile(ID, ctx, parent, s, blk, idx);
void *InsertPos;
- StackFrameContext *L =
+ auto *L =
cast_or_null<StackFrameContext>(Contexts.FindNodeOrInsertPos(ID, InsertPos));
if (!L) {
L = new StackFrameContext(ctx, parent, s, blk, idx);
@@ -423,7 +430,7 @@ LocationContextManager::getBlockInvocationContext(AnalysisDeclContext *ctx,
llvm::FoldingSetNodeID ID;
BlockInvocationContext::Profile(ID, ctx, parent, BD, ContextData);
void *InsertPos;
- BlockInvocationContext *L =
+ auto *L =
cast_or_null<BlockInvocationContext>(Contexts.FindNodeOrInsertPos(ID,
InsertPos));
if (!L) {
@@ -437,10 +444,10 @@ LocationContextManager::getBlockInvocationContext(AnalysisDeclContext *ctx,
// LocationContext methods.
//===----------------------------------------------------------------------===//
-const StackFrameContext *LocationContext::getCurrentStackFrame() const {
+const StackFrameContext *LocationContext::getStackFrame() const {
const LocationContext *LC = this;
while (LC) {
- if (const StackFrameContext *SFC = dyn_cast<StackFrameContext>(LC))
+ if (const auto *SFC = dyn_cast<StackFrameContext>(LC))
return SFC;
LC = LC->getParent();
}
@@ -448,7 +455,7 @@ const StackFrameContext *LocationContext::getCurrentStackFrame() const {
}
bool LocationContext::inTopFrame() const {
- return getCurrentStackFrame()->inTopFrame();
+ return getStackFrame()->inTopFrame();
}
bool LocationContext::isParentOf(const LocationContext *LC) const {
@@ -463,28 +470,53 @@ bool LocationContext::isParentOf(const LocationContext *LC) const {
return false;
}
-void LocationContext::dumpStack(raw_ostream &OS, StringRef Indent) const {
+static void printLocation(raw_ostream &OS, const SourceManager &SM,
+ SourceLocation SLoc) {
+ if (SLoc.isFileID() && SM.isInMainFile(SLoc))
+ OS << "line " << SM.getExpansionLineNumber(SLoc);
+ else
+ SLoc.print(OS, SM);
+}
+
+void LocationContext::dumpStack(
+ raw_ostream &OS, StringRef Indent, const char *NL, const char *Sep,
+ std::function<void(const LocationContext *)> printMoreInfoPerContext) const {
ASTContext &Ctx = getAnalysisDeclContext()->getASTContext();
PrintingPolicy PP(Ctx.getLangOpts());
PP.TerseOutput = 1;
+ const SourceManager &SM =
+ getAnalysisDeclContext()->getASTContext().getSourceManager();
+
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';
+ OS << Indent << '#' << Frame << ' ';
+ ++Frame;
+ if (const auto *D = dyn_cast<NamedDecl>(LCtx->getDecl()))
+ OS << "Calling " << D->getQualifiedNameAsString();
+ else
+ OS << "Calling anonymous code";
+ if (const Stmt *S = cast<StackFrameContext>(LCtx)->getCallSite()) {
+ OS << " at ";
+ printLocation(OS, SM, S->getLocStart());
+ }
break;
case Scope:
- OS << Indent << " (scope)\n";
+ OS << "Entering scope";
break;
case Block:
- OS << Indent << " (block context: "
- << cast<BlockInvocationContext>(LCtx)->getContextData()
- << ")\n";
+ OS << "Invoking block";
+ if (const Decl *D = cast<BlockInvocationContext>(LCtx)->getDecl()) {
+ OS << " defined at ";
+ printLocation(OS, SM, D->getLocStart());
+ }
break;
}
+ OS << NL;
+
+ printMoreInfoPerContext(LCtx);
}
}
@@ -497,25 +529,27 @@ LLVM_DUMP_METHOD void LocationContext::dumpStack() const {
//===----------------------------------------------------------------------===//
namespace {
+
class FindBlockDeclRefExprsVals : public StmtVisitor<FindBlockDeclRefExprsVals>{
- BumpVector<const VarDecl*> &BEVals;
+ BumpVector<const VarDecl *> &BEVals;
BumpVectorContext &BC;
- llvm::SmallPtrSet<const VarDecl*, 4> Visited;
- llvm::SmallPtrSet<const DeclContext*, 4> IgnoredContexts;
+ llvm::SmallPtrSet<const VarDecl *, 4> Visited;
+ llvm::SmallPtrSet<const DeclContext *, 4> IgnoredContexts;
+
public:
FindBlockDeclRefExprsVals(BumpVector<const VarDecl*> &bevals,
BumpVectorContext &bc)
- : BEVals(bevals), BC(bc) {}
+ : BEVals(bevals), BC(bc) {}
void VisitStmt(Stmt *S) {
- for (Stmt *Child : S->children())
+ for (auto *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 (const auto *VD = dyn_cast<VarDecl>(DR->getDecl())) {
if (!VD->hasLocalStorage()) {
if (Visited.insert(VD).second)
BEVals.push_back(VD, BC);
@@ -533,15 +567,16 @@ public:
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))
+ if (auto *OVE = dyn_cast<OpaqueValueExpr>(Semantic))
Semantic = OVE->getSourceExpr();
Visit(Semantic);
}
}
};
-} // end anonymous namespace
-typedef BumpVector<const VarDecl*> DeclVec;
+} // namespace
+
+using DeclVec = BumpVector<const VarDecl *>;
static DeclVec* LazyInitializeReferencedDecls(const BlockDecl *BD,
void *&Vec,
@@ -587,7 +622,7 @@ ManagedAnalysis *&AnalysisDeclContext::getAnalysisImpl(const void *tag) {
// Cleanup.
//===----------------------------------------------------------------------===//
-ManagedAnalysis::~ManagedAnalysis() {}
+ManagedAnalysis::~ManagedAnalysis() = default;
AnalysisDeclContext::~AnalysisDeclContext() {
delete forcedBlkExprs;
@@ -600,7 +635,7 @@ AnalysisDeclContext::~AnalysisDeclContext() {
}
}
-LocationContext::~LocationContext() {}
+LocationContext::~LocationContext() = default;
LocationContextManager::~LocationContextManager() {
clear();
@@ -613,7 +648,5 @@ void LocationContextManager::clear() {
++I;
delete LC;
}
-
Contexts.clear();
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-03 00:34:05 +0000