Remove reference to AnalysisContext in Environment. We already have LocationContext
information in ExplodedNode.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97785 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Checker/Environment.cpp b/lib/Checker/Environment.cpp
index c2c9190..671cf89 100644
--- a/lib/Checker/Environment.cpp
+++ b/lib/Checker/Environment.cpp
@@ -78,12 +78,12 @@
 
   if (V.isUnknown()) {
     if (Invalidate)
-      return Environment(F.Remove(Env.ExprBindings, S), Env.ACtx);
+      return Environment(F.Remove(Env.ExprBindings, S));
     else
       return Env;
   }
 
-  return Environment(F.Add(Env.ExprBindings, S, V), Env.ACtx);
+  return Environment(F.Add(Env.ExprBindings, S, V));
 }
 
 namespace {
@@ -109,12 +109,12 @@
                                        const GRState *ST,
                               llvm::SmallVectorImpl<const MemRegion*> &DRoots) {
 
-  CFG &C = *Env.getAnalysisContext().getCFG();
+  CFG &C = *SymReaper.getLocationContext()->getCFG();
 
   // We construct a new Environment object entirely, as this is cheaper than
   // individually removing all the subexpression bindings (which will greatly
   // outnumber block-level expression bindings).
-  Environment NewEnv = getInitialEnvironment(&Env.getAnalysisContext());
+  Environment NewEnv = getInitialEnvironment();
 
   // Iterate over the block-expr bindings.
   for (Environment::iterator I = Env.begin(), E = Env.end();
diff --git a/lib/Checker/GRCoreEngine.cpp b/lib/Checker/GRCoreEngine.cpp
index 63ac31d..a9347d0 100644
--- a/lib/Checker/GRCoreEngine.cpp
+++ b/lib/Checker/GRCoreEngine.cpp
@@ -682,7 +682,6 @@
   // Get the callee's location context.
   const StackFrameContext *LocCtx 
                          = cast<StackFrameContext>(Pred->getLocationContext());
-  state = state->setAnalysisContext(LocCtx->getParent()->getAnalysisContext());
 
   PostStmt Loc(LocCtx->getCallSite(), LocCtx->getParent());
   bool isNew;
diff --git a/lib/Checker/GRExprEngine.cpp b/lib/Checker/GRExprEngine.cpp
index d25526e..2ea689e 100644
--- a/lib/Checker/GRExprEngine.cpp
+++ b/lib/Checker/GRExprEngine.cpp
@@ -477,8 +477,9 @@
 
   // Create the cleaned state.
   const ExplodedNode *BasePred = Builder->getBasePredecessor();
-  SymbolReaper SymReaper(BasePred->getLiveVariables(), SymMgr,
-                        BasePred->getLocationContext()->getCurrentStackFrame());
+
+  SymbolReaper SymReaper(BasePred->getLocationContext(), SymMgr);
+
   CleanedState = AMgr.shouldPurgeDead()
     ? StateMgr.RemoveDeadBindings(EntryNode->getState(), CurrentStmt, SymReaper)
     : EntryNode->getState();
@@ -1309,7 +1310,6 @@
 
   const GRState *state = B.getState();
   state = getStoreManager().EnterStackFrame(state, LocCtx);
-  state = state->setAnalysisContext(LocCtx->getAnalysisContext());
 
   B.GenerateNode(state, LocCtx);
 }
@@ -3320,7 +3320,7 @@
     Out << "\\|StateID: " << (void*) N->getState() << "\\|";
 
     const GRState *state = N->getState();
-    state->printDOT(Out);
+    state->printDOT(Out, *N->getLocationContext()->getCFG());
 
     Out << "\\l";
     return Out.str();
diff --git a/lib/Checker/GRState.cpp b/lib/Checker/GRState.cpp
index ce7d6e2..97ede1d 100644
--- a/lib/Checker/GRState.cpp
+++ b/lib/Checker/GRState.cpp
@@ -23,12 +23,6 @@
 // FIXME: Move this elsewhere.
 ConstraintManager::~ConstraintManager() {}
 
-const GRState *GRState::setAnalysisContext(AnalysisContext *ctx) const {
-  GRState NewState = *this;
-  NewState.Env.setAnalysisContext(ctx);
-  return StateMgr->getPersistentState(NewState);
-}
-
 GRStateManager::~GRStateManager() {
   for (std::vector<GRState::Printer*>::iterator I=Printers.begin(),
         E=Printers.end(); I!=E; ++I)
@@ -105,7 +99,7 @@
 
 const GRState* GRStateManager::getInitialState(const LocationContext *InitLoc) {
   GRState State(this,
-                EnvMgr.getInitialEnvironment(InitLoc->getAnalysisContext()),
+                EnvMgr.getInitialEnvironment(),
                 StoreMgr->getInitialStore(InitLoc),
                 GDMFactory.GetEmptyMap());
 
@@ -137,14 +131,12 @@
 //  State pretty-printing.
 //===----------------------------------------------------------------------===//
 
-void GRState::print(llvm::raw_ostream& Out, const char* nl,
+void GRState::print(llvm::raw_ostream& Out, CFG &C, const char* nl,
                     const char* sep) const {
   // Print the store.
   GRStateManager &Mgr = getStateManager();
   Mgr.getStoreManager().print(getStore(), Out, nl, sep);
 
-  CFG &C = *getAnalysisContext().getCFG();
-
   // Print Subexpression bindings.
   bool isFirst = true;
 
@@ -192,12 +184,12 @@
   }
 }
 
-void GRState::printDOT(llvm::raw_ostream& Out) const {
-  print(Out, "\\l", "\\|");
+void GRState::printDOT(llvm::raw_ostream& Out, CFG &C) const {
+  print(Out, C, "\\l", "\\|");
 }
 
-void GRState::printStdErr() const {
-  print(llvm::errs());
+void GRState::printStdErr(CFG &C) const {
+  print(llvm::errs(), C);
 }
 
 //===----------------------------------------------------------------------===//
diff --git a/lib/Checker/SymbolManager.cpp b/lib/Checker/SymbolManager.cpp
index f2d630c..65a46e3 100644
--- a/lib/Checker/SymbolManager.cpp
+++ b/lib/Checker/SymbolManager.cpp
@@ -215,13 +215,17 @@
   return isa<SymbolRegionValue>(sym);
 }
 
+bool SymbolReaper::isLive(const Stmt* Loc, const Stmt* ExprVal) const {
+  return LCtx->getLiveVariables()->isLive(Loc, ExprVal);
+}
+
 bool SymbolReaper::isLive(const Stmt *Loc, const VarRegion *VR) const {
   const StackFrameContext *SFC = VR->getStackFrame();
 
-  if (SFC == CurrentStackFrame)
-    return Liveness.isLive(Loc, VR->getDecl());
+  if (SFC == LCtx->getCurrentStackFrame())
+    return LCtx->getLiveVariables()->isLive(Loc, VR->getDecl());
   else
-    return SFC->isParentOf(CurrentStackFrame);
+    return SFC->isParentOf(LCtx->getCurrentStackFrame());
 }
 
 SymbolVisitor::~SymbolVisitor() {}