From 50b73317314e889cf39c7b1d6cbf419fa7502f22 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sat, 14 Apr 2012 14:01:31 +0000
Subject: Vendor import of clang trunk r154661:
http://llvm.org/svn/llvm-project/cfe/trunk@r154661
---
lib/StaticAnalyzer/Core/ProgramState.cpp | 350 +++++++++++++++++++------------
1 file changed, 217 insertions(+), 133 deletions(-)
(limited to 'lib/StaticAnalyzer/Core/ProgramState.cpp')
diff --git a/lib/StaticAnalyzer/Core/ProgramState.cpp b/lib/StaticAnalyzer/Core/ProgramState.cpp
index 73788cc..b9cfa27 100644
--- a/lib/StaticAnalyzer/Core/ProgramState.cpp
+++ b/lib/StaticAnalyzer/Core/ProgramState.cpp
@@ -15,6 +15,7 @@
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramStateTrait.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/ProgramState.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/SubEngine.h"
+#include "clang/StaticAnalyzer/Core/PathSensitive/TaintManager.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang;
@@ -24,6 +25,26 @@ using namespace ento;
// FIXME: Move this elsewhere.
ConstraintManager::~ConstraintManager() {}
+namespace clang { namespace ento {
+/// Increments the number of times this state is referenced.
+
+void ProgramStateRetain(const ProgramState *state) {
+ ++const_cast<ProgramState*>(state)->refCount;
+}
+
+/// Decrement the number of times this state is referenced.
+void ProgramStateRelease(const ProgramState *state) {
+ assert(state->refCount > 0);
+ ProgramState *s = const_cast<ProgramState*>(state);
+ if (--s->refCount == 0) {
+ ProgramStateManager &Mgr = s->getStateManager();
+ Mgr.StateSet.RemoveNode(s);
+ s->~ProgramState();
+ Mgr.freeStates.push_back(s);
+ }
+}
+}}
+
ProgramState::ProgramState(ProgramStateManager *mgr, const Environment& env,
StoreRef st, GenericDataMap gdm)
: stateMgr(mgr),
@@ -55,8 +76,8 @@ ProgramStateManager::~ProgramStateManager() {
I->second.second(I->second.first);
}
-const ProgramState*
-ProgramStateManager::removeDeadBindings(const ProgramState *state,
+ProgramStateRef
+ProgramStateManager::removeDeadBindings(ProgramStateRef state,
const StackFrameContext *LCtx,
SymbolReaper& SymReaper) {
@@ -79,7 +100,7 @@ ProgramStateManager::removeDeadBindings(const ProgramState *state,
return getPersistentState(NewState);
}
-const ProgramState *ProgramStateManager::MarshalState(const ProgramState *state,
+ProgramStateRef ProgramStateManager::MarshalState(ProgramStateRef state,
const StackFrameContext *InitLoc) {
// make up an empty state for now.
ProgramState State(this,
@@ -90,7 +111,7 @@ const ProgramState *ProgramStateManager::MarshalState(const ProgramState *state,
return getPersistentState(State);
}
-const ProgramState *ProgramState::bindCompoundLiteral(const CompoundLiteralExpr *CL,
+ProgramStateRef ProgramState::bindCompoundLiteral(const CompoundLiteralExpr *CL,
const LocationContext *LC,
SVal V) const {
const StoreRef &newStore =
@@ -98,21 +119,21 @@ const ProgramState *ProgramState::bindCompoundLiteral(const CompoundLiteralExpr
return makeWithStore(newStore);
}
-const ProgramState *ProgramState::bindDecl(const VarRegion* VR, SVal IVal) const {
+ProgramStateRef ProgramState::bindDecl(const VarRegion* VR, SVal IVal) const {
const StoreRef &newStore =
getStateManager().StoreMgr->BindDecl(getStore(), VR, IVal);
return makeWithStore(newStore);
}
-const ProgramState *ProgramState::bindDeclWithNoInit(const VarRegion* VR) const {
+ProgramStateRef ProgramState::bindDeclWithNoInit(const VarRegion* VR) const {
const StoreRef &newStore =
getStateManager().StoreMgr->BindDeclWithNoInit(getStore(), VR);
return makeWithStore(newStore);
}
-const ProgramState *ProgramState::bindLoc(Loc LV, SVal V) const {
+ProgramStateRef ProgramState::bindLoc(Loc LV, SVal V) const {
ProgramStateManager &Mgr = getStateManager();
- const ProgramState *newState = makeWithStore(Mgr.StoreMgr->Bind(getStore(),
+ ProgramStateRef newState = makeWithStore(Mgr.StoreMgr->Bind(getStore(),
LV, V));
const MemRegion *MR = LV.getAsRegion();
if (MR && Mgr.getOwningEngine())
@@ -121,53 +142,55 @@ const ProgramState *ProgramState::bindLoc(Loc LV, SVal V) const {
return newState;
}
-const ProgramState *ProgramState::bindDefault(SVal loc, SVal V) const {
+ProgramStateRef ProgramState::bindDefault(SVal loc, SVal V) const {
ProgramStateManager &Mgr = getStateManager();
const MemRegion *R = cast<loc::MemRegionVal>(loc).getRegion();
const StoreRef &newStore = Mgr.StoreMgr->BindDefault(getStore(), R, V);
- const ProgramState *new_state = makeWithStore(newStore);
+ ProgramStateRef new_state = makeWithStore(newStore);
return Mgr.getOwningEngine() ?
Mgr.getOwningEngine()->processRegionChange(new_state, R) :
new_state;
}
-const ProgramState *
+ProgramStateRef
ProgramState::invalidateRegions(ArrayRef<const MemRegion *> Regions,
const Expr *E, unsigned Count,
+ const LocationContext *LCtx,
StoreManager::InvalidatedSymbols *IS,
- bool invalidateGlobals) const {
+ const CallOrObjCMessage *Call) const {
if (!IS) {
StoreManager::InvalidatedSymbols invalidated;
- return invalidateRegionsImpl(Regions, E, Count,
- invalidated, invalidateGlobals);
+ return invalidateRegionsImpl(Regions, E, Count, LCtx,
+ invalidated, Call);
}
- return invalidateRegionsImpl(Regions, E, Count, *IS, invalidateGlobals);
+ return invalidateRegionsImpl(Regions, E, Count, LCtx, *IS, Call);
}
-const ProgramState *
+ProgramStateRef
ProgramState::invalidateRegionsImpl(ArrayRef<const MemRegion *> Regions,
const Expr *E, unsigned Count,
+ const LocationContext *LCtx,
StoreManager::InvalidatedSymbols &IS,
- bool invalidateGlobals) const {
+ const CallOrObjCMessage *Call) const {
ProgramStateManager &Mgr = getStateManager();
SubEngine* Eng = Mgr.getOwningEngine();
if (Eng && Eng->wantsRegionChangeUpdate(this)) {
StoreManager::InvalidatedRegions Invalidated;
const StoreRef &newStore
- = Mgr.StoreMgr->invalidateRegions(getStore(), Regions, E, Count, IS,
- invalidateGlobals, &Invalidated);
- const ProgramState *newState = makeWithStore(newStore);
- return Eng->processRegionChanges(newState, &IS, Regions, Invalidated);
+ = Mgr.StoreMgr->invalidateRegions(getStore(), Regions, E, Count, LCtx, IS,
+ Call, &Invalidated);
+ ProgramStateRef newState = makeWithStore(newStore);
+ return Eng->processRegionChanges(newState, &IS, Regions, Invalidated, Call);
}
const StoreRef &newStore =
- Mgr.StoreMgr->invalidateRegions(getStore(), Regions, E, Count, IS,
- invalidateGlobals, NULL);
+ Mgr.StoreMgr->invalidateRegions(getStore(), Regions, E, Count, LCtx, IS,
+ Call, NULL);
return makeWithStore(newStore);
}
-const ProgramState *ProgramState::unbindLoc(Loc LV) const {
+ProgramStateRef ProgramState::unbindLoc(Loc LV) const {
assert(!isa<loc::MemRegionVal>(LV) && "Use invalidateRegion instead.");
Store OldStore = getStore();
@@ -179,9 +202,11 @@ const ProgramState *ProgramState::unbindLoc(Loc LV) const {
return makeWithStore(newStore);
}
-const ProgramState *ProgramState::enterStackFrame(const StackFrameContext *frame) const {
+ProgramStateRef
+ProgramState::enterStackFrame(const LocationContext *callerCtx,
+ const StackFrameContext *calleeCtx) const {
const StoreRef &new_store =
- getStateManager().StoreMgr->enterStackFrame(this, frame);
+ getStateManager().StoreMgr->enterStackFrame(this, callerCtx, calleeCtx);
return makeWithStore(new_store);
}
@@ -238,9 +263,12 @@ SVal ProgramState::getSVal(Loc location, QualType T) const {
return V;
}
-const ProgramState *ProgramState::BindExpr(const Stmt *S, SVal V, bool Invalidate) const{
- Environment NewEnv = getStateManager().EnvMgr.bindExpr(Env, S, V,
- Invalidate);
+ProgramStateRef ProgramState::BindExpr(const Stmt *S,
+ const LocationContext *LCtx,
+ SVal V, bool Invalidate) const{
+ Environment NewEnv =
+ getStateManager().EnvMgr.bindExpr(Env, EnvironmentEntry(S, LCtx), V,
+ Invalidate);
if (NewEnv == Env)
return this;
@@ -249,10 +277,14 @@ const ProgramState *ProgramState::BindExpr(const Stmt *S, SVal V, bool Invalidat
return getStateManager().getPersistentState(NewSt);
}
-const ProgramState *ProgramState::bindExprAndLocation(const Stmt *S, SVal location,
- SVal V) const {
+ProgramStateRef
+ProgramState::bindExprAndLocation(const Stmt *S, const LocationContext *LCtx,
+ SVal location,
+ SVal V) const {
Environment NewEnv =
- getStateManager().EnvMgr.bindExprAndLocation(Env, S, location, V);
+ getStateManager().EnvMgr.bindExprAndLocation(Env,
+ EnvironmentEntry(S, LCtx),
+ location, V);
if (NewEnv == Env)
return this;
@@ -262,9 +294,10 @@ const ProgramState *ProgramState::bindExprAndLocation(const Stmt *S, SVal locati
return getStateManager().getPersistentState(NewSt);
}
-const ProgramState *ProgramState::assumeInBound(DefinedOrUnknownSVal Idx,
+ProgramStateRef ProgramState::assumeInBound(DefinedOrUnknownSVal Idx,
DefinedOrUnknownSVal UpperBound,
- bool Assumption) const {
+ bool Assumption,
+ QualType indexTy) const {
if (Idx.isUnknown() || UpperBound.isUnknown())
return this;
@@ -278,7 +311,8 @@ const ProgramState *ProgramState::assumeInBound(DefinedOrUnknownSVal Idx,
// Get the offset: the minimum value of the array index type.
BasicValueFactory &BVF = svalBuilder.getBasicValueFactory();
// FIXME: This should be using ValueManager::ArrayindexTy...somehow.
- QualType indexTy = Ctx.IntTy;
+ if (indexTy.isNull())
+ indexTy = Ctx.IntTy;
nonloc::ConcreteInt Min(BVF.getMinValue(indexTy));
// Adjust the index.
@@ -307,7 +341,7 @@ const ProgramState *ProgramState::assumeInBound(DefinedOrUnknownSVal Idx,
return CM.assume(this, cast<DefinedSVal>(inBound), Assumption);
}
-const ProgramState *ProgramStateManager::getInitialState(const LocationContext *InitLoc) {
+ProgramStateRef ProgramStateManager::getInitialState(const LocationContext *InitLoc) {
ProgramState State(this,
EnvMgr.getInitialEnvironment(),
StoreMgr->getInitialStore(InitLoc),
@@ -316,28 +350,15 @@ const ProgramState *ProgramStateManager::getInitialState(const LocationContext *
return getPersistentState(State);
}
-void ProgramStateManager::recycleUnusedStates() {
- for (std::vector<ProgramState*>::iterator i = recentlyAllocatedStates.begin(),
- e = recentlyAllocatedStates.end(); i != e; ++i) {
- ProgramState *state = *i;
- if (state->referencedByExplodedNode())
- continue;
- StateSet.RemoveNode(state);
- freeStates.push_back(state);
- state->~ProgramState();
- }
- recentlyAllocatedStates.clear();
-}
-
-const ProgramState *ProgramStateManager::getPersistentStateWithGDM(
- const ProgramState *FromState,
- const ProgramState *GDMState) {
- ProgramState NewState = *FromState;
+ProgramStateRef ProgramStateManager::getPersistentStateWithGDM(
+ ProgramStateRef FromState,
+ ProgramStateRef GDMState) {
+ ProgramState NewState(*FromState);
NewState.GDM = GDMState->GDM;
return getPersistentState(NewState);
}
-const ProgramState *ProgramStateManager::getPersistentState(ProgramState &State) {
+ProgramStateRef ProgramStateManager::getPersistentState(ProgramState &State) {
llvm::FoldingSetNodeID ID;
State.Profile(ID);
@@ -356,12 +377,11 @@ const ProgramState *ProgramStateManager::getPersistentState(ProgramState &State)
}
new (newState) ProgramState(State);
StateSet.InsertNode(newState, InsertPos);
- recentlyAllocatedStates.push_back(newState);
return newState;
}
-const ProgramState *ProgramState::makeWithStore(const StoreRef &store) const {
- ProgramState NewSt = *this;
+ProgramStateRef ProgramState::makeWithStore(const StoreRef &store) const {
+ ProgramState NewSt(*this);
NewSt.setStore(store);
return getStateManager().getPersistentState(NewSt);
}
@@ -379,92 +399,44 @@ void ProgramState::setStore(const StoreRef &newStore) {
// State pretty-printing.
//===----------------------------------------------------------------------===//
-static bool IsEnvLoc(const Stmt *S) {
- // FIXME: This is a layering violation. Should be in environment.
- return (bool) (((uintptr_t) S) & 0x1);
-}
-
-void ProgramState::print(raw_ostream &Out, CFG &C,
+void ProgramState::print(raw_ostream &Out,
const char *NL, const char *Sep) const {
// Print the store.
ProgramStateManager &Mgr = getStateManager();
Mgr.getStoreManager().print(getStore(), Out, NL, Sep);
- // Print Subexpression bindings.
- bool isFirst = true;
+ // Print out the environment.
+ Env.print(Out, NL, Sep);
- // FIXME: All environment printing should be moved inside Environment.
- for (Environment::iterator I = Env.begin(), E = Env.end(); I != E; ++I) {
- if (C.isBlkExpr(I.getKey()) || IsEnvLoc(I.getKey()))
- continue;
-
- if (isFirst) {
- Out << NL << NL << "Sub-Expressions:" << NL;
- isFirst = false;
- } else {
- Out << NL;
- }
+ // Print out the constraints.
+ Mgr.getConstraintManager().print(this, Out, NL, Sep);
- Out << " (" << (void*) I.getKey() << ") ";
- LangOptions LO; // FIXME.
- I.getKey()->printPretty(Out, 0, PrintingPolicy(LO));
- Out << " : " << I.getData();
- }
+ // Print checker-specific data.
+ Mgr.getOwningEngine()->printState(Out, this, NL, Sep);
+}
- // Print block-expression bindings.
- isFirst = true;
+void ProgramState::printDOT(raw_ostream &Out) const {
+ print(Out, "\\l", "\\|");
+}
- for (Environment::iterator I = Env.begin(), E = Env.end(); I != E; ++I) {
- if (!C.isBlkExpr(I.getKey()))
- continue;
+void ProgramState::dump() const {
+ print(llvm::errs());
+}
- if (isFirst) {
- Out << NL << NL << "Block-level Expressions:" << NL;
- isFirst = false;
- } else {
- Out << NL;
- }
+void ProgramState::printTaint(raw_ostream &Out,
+ const char *NL, const char *Sep) const {
+ TaintMapImpl TM = get<TaintMap>();
- Out << " (" << (void*) I.getKey() << ") ";
- LangOptions LO; // FIXME.
- I.getKey()->printPretty(Out, 0, PrintingPolicy(LO));
- Out << " : " << I.getData();
- }
-
- // Print locations.
- isFirst = true;
-
- for (Environment::iterator I = Env.begin(), E = Env.end(); I != E; ++I) {
- if (!IsEnvLoc(I.getKey()))
- continue;
-
- if (isFirst) {
- Out << NL << NL << "Load/store locations:" << NL;
- isFirst = false;
- } else {
- Out << NL;
- }
+ if (!TM.isEmpty())
+ Out <<"Tainted Symbols:" << NL;
- const Stmt *S = (Stmt*) (((uintptr_t) I.getKey()) & ((uintptr_t) ~0x1));
-
- Out << " (" << (void*) S << ") ";
- LangOptions LO; // FIXME.
- S->printPretty(Out, 0, PrintingPolicy(LO));
- Out << " : " << I.getData();
+ for (TaintMapImpl::iterator I = TM.begin(), E = TM.end(); I != E; ++I) {
+ Out << I->first << " : " << I->second << NL;
}
-
- Mgr.getConstraintManager().print(this, Out, NL, Sep);
-
- // Print checker-specific data.
- Mgr.getOwningEngine()->printState(Out, this, NL, Sep);
-}
-
-void ProgramState::printDOT(raw_ostream &Out, CFG &C) const {
- print(Out, C, "\\l", "\\|");
}
-void ProgramState::printStdErr(CFG &C) const {
- print(llvm::errs(), C);
+void ProgramState::dumpTaint() const {
+ printTaint(llvm::errs());
}
//===----------------------------------------------------------------------===//
@@ -489,7 +461,7 @@ ProgramStateManager::FindGDMContext(void *K,
return p.first;
}
-const ProgramState *ProgramStateManager::addGDM(const ProgramState *St, void *Key, void *Data){
+ProgramStateRef ProgramStateManager::addGDM(ProgramStateRef St, void *Key, void *Data){
ProgramState::GenericDataMap M1 = St->getGDM();
ProgramState::GenericDataMap M2 = GDMFactory.add(M1, Key, Data);
@@ -501,7 +473,7 @@ const ProgramState *ProgramStateManager::addGDM(const ProgramState *St, void *Ke
return getPersistentState(NewSt);
}
-const ProgramState *ProgramStateManager::removeGDM(const ProgramState *state, void *Key) {
+ProgramStateRef ProgramStateManager::removeGDM(ProgramStateRef state, void *Key) {
ProgramState::GenericDataMap OldM = state->getGDM();
ProgramState::GenericDataMap NewM = GDMFactory.remove(OldM, Key);
@@ -513,6 +485,8 @@ const ProgramState *ProgramStateManager::removeGDM(const ProgramState *state, vo
return getPersistentState(NewState);
}
+void ScanReachableSymbols::anchor() { }
+
bool ScanReachableSymbols::scan(nonloc::CompoundVal val) {
for (nonloc::CompoundVal::iterator I=val.begin(), E=val.end(); I!=E; ++I)
if (!scan(*I))
@@ -527,10 +501,10 @@ bool ScanReachableSymbols::scan(const SymExpr *sym) {
return true;
isVisited = 1;
- if (const SymbolData *sData = dyn_cast<SymbolData>(sym))
- if (!visitor.VisitSymbol(sData))
- return false;
+ if (!visitor.VisitSymbol(sym))
+ return false;
+ // TODO: should be rewritten using SymExpr::symbol_iterator.
switch (sym->getKind()) {
case SymExpr::RegionValueKind:
case SymExpr::ConjuredKind:
@@ -538,8 +512,12 @@ bool ScanReachableSymbols::scan(const SymExpr *sym) {
case SymExpr::ExtentKind:
case SymExpr::MetadataKind:
break;
+ case SymExpr::CastSymbolKind:
+ return scan(cast<SymbolCast>(sym)->getOperand());
case SymExpr::SymIntKind:
return scan(cast<SymIntExpr>(sym)->getLHS());
+ case SymExpr::IntSymKind:
+ return scan(cast<IntSymExpr>(sym)->getRHS());
case SymExpr::SymSymKind: {
const SymSymExpr *x = cast<SymSymExpr>(sym);
return scan(x->getLHS()) && scan(x->getRHS());
@@ -575,6 +553,10 @@ bool ScanReachableSymbols::scan(const MemRegion *R) {
if (isVisited)
return true;
isVisited = 1;
+
+
+ if (!visitor.VisitMemRegion(R))
+ return false;
// If this is a symbolic region, visit the symbol for the region.
if (const SymbolicRegion *SR = dyn_cast<SymbolicRegion>(R))
@@ -623,3 +605,105 @@ bool ProgramState::scanReachableSymbols(const MemRegion * const *I,
}
return true;
}
+
+ProgramStateRef ProgramState::addTaint(const Stmt *S,
+ const LocationContext *LCtx,
+ TaintTagType Kind) const {
+ if (const Expr *E = dyn_cast_or_null<Expr>(S))
+ S = E->IgnoreParens();
+
+ SymbolRef Sym = getSVal(S, LCtx).getAsSymbol();
+ if (Sym)
+ return addTaint(Sym, Kind);
+
+ const MemRegion *R = getSVal(S, LCtx).getAsRegion();
+ addTaint(R, Kind);
+
+ // Cannot add taint, so just return the state.
+ return this;
+}
+
+ProgramStateRef ProgramState::addTaint(const MemRegion *R,
+ TaintTagType Kind) const {
+ if (const SymbolicRegion *SR = dyn_cast_or_null<SymbolicRegion>(R))
+ return addTaint(SR->getSymbol(), Kind);
+ return this;
+}
+
+ProgramStateRef ProgramState::addTaint(SymbolRef Sym,
+ TaintTagType Kind) const {
+ // If this is a symbol cast, remove the cast before adding the taint. Taint
+ // is cast agnostic.
+ while (const SymbolCast *SC = dyn_cast<SymbolCast>(Sym))
+ Sym = SC->getOperand();
+
+ ProgramStateRef NewState = set<TaintMap>(Sym, Kind);
+ assert(NewState);
+ return NewState;
+}
+
+bool ProgramState::isTainted(const Stmt *S, const LocationContext *LCtx,
+ TaintTagType Kind) const {
+ if (const Expr *E = dyn_cast_or_null<Expr>(S))
+ S = E->IgnoreParens();
+
+ SVal val = getSVal(S, LCtx);
+ return isTainted(val, Kind);
+}
+
+bool ProgramState::isTainted(SVal V, TaintTagType Kind) const {
+ if (const SymExpr *Sym = V.getAsSymExpr())
+ return isTainted(Sym, Kind);
+ if (const MemRegion *Reg = V.getAsRegion())
+ return isTainted(Reg, Kind);
+ return false;
+}
+
+bool ProgramState::isTainted(const MemRegion *Reg, TaintTagType K) const {
+ if (!Reg)
+ return false;
+
+ // Element region (array element) is tainted if either the base or the offset
+ // are tainted.
+ if (const ElementRegion *ER = dyn_cast<ElementRegion>(Reg))
+ return isTainted(ER->getSuperRegion(), K) || isTainted(ER->getIndex(), K);
+
+ if (const SymbolicRegion *SR = dyn_cast<SymbolicRegion>(Reg))
+ return isTainted(SR->getSymbol(), K);
+
+ if (const SubRegion *ER = dyn_cast<SubRegion>(Reg))
+ return isTainted(ER->getSuperRegion(), K);
+
+ return false;
+}
+
+bool ProgramState::isTainted(SymbolRef Sym, TaintTagType Kind) const {
+ if (!Sym)
+ return false;
+
+ // Traverse all the symbols this symbol depends on to see if any are tainted.
+ bool Tainted = false;
+ for (SymExpr::symbol_iterator SI = Sym->symbol_begin(), SE =Sym->symbol_end();
+ SI != SE; ++SI) {
+ assert(isa<SymbolData>(*SI));
+ const TaintTagType *Tag = get<TaintMap>(*SI);
+ Tainted = (Tag && *Tag == Kind);
+
+ // If this is a SymbolDerived with a tainted parent, it's also tainted.
+ if (const SymbolDerived *SD = dyn_cast<SymbolDerived>(*SI))
+ Tainted = Tainted || isTainted(SD->getParentSymbol(), Kind);
+
+ // If memory region is tainted, data is also tainted.
+ if (const SymbolRegionValue *SRV = dyn_cast<SymbolRegionValue>(*SI))
+ Tainted = Tainted || isTainted(SRV->getRegion(), Kind);
+
+ // If If this is a SymbolCast from a tainted value, it's also tainted.
+ if (const SymbolCast *SC = dyn_cast<SymbolCast>(*SI))
+ Tainted = Tainted || isTainted(SC->getOperand(), Kind);
+
+ if (Tainted)
+ return true;
+ }
+
+ return Tainted;
+}
--
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