[cfe-commits] r54716 - in /cfe/trunk/lib/Analysis: GRExprEngine.cpp SymbolManager.cpp

[Ted Kremenek]

Author: kremenek
Date: Tue Aug 12 22:28:04 2008
New Revision: 54716

URL: http://llvm.org/viewvc/llvm-project?rev=54716&view=rev
Log:
Initialize tracked local variables to undefined.

Modified:
    cfe/trunk/lib/Analysis/GRExprEngine.cpp
    cfe/trunk/lib/Analysis/SymbolManager.cpp

Modified: cfe/trunk/lib/Analysis/GRExprEngine.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Analysis/GRExprEngine.cpp?rev=54716&r1=54715&r2=54716&view=diff

==============================================================================
--- cfe/trunk/lib/Analysis/GRExprEngine.cpp (original)
+++ cfe/trunk/lib/Analysis/GRExprEngine.cpp Tue Aug 12 22:28:04 2008
@@ -202,10 +202,15 @@
     
     ScopedDecl *SD = const_cast<ScopedDecl*>(I->first);
     if (VarDecl* VD = dyn_cast<VarDecl>(SD)) {
-      if (VD->hasGlobalStorage() || isa<ParmVarDecl>(VD)) {
-        RVal X = RVal::GetSymbolValue(SymMgr, VD);
-        StateMgr.SetRVal(StateImpl, lval::DeclVal(VD), X);
-      }
+      // Initialize globals and parameters to symbolic values.
+      // Initialize local variables to undefined.
+      RVal X = (VD->hasGlobalStorage() || isa<ParmVarDecl>(VD) ||
+                isa<ImplicitParamDecl>(VD))
+             ? RVal::GetSymbolValue(SymMgr, VD)
+             : UndefinedVal();
+      
+      StateMgr.SetRVal(StateImpl, lval::DeclVal(VD), X);
+      
     } else if (ImplicitParamDecl *IPD = dyn_cast<ImplicitParamDecl>(SD)) {
         RVal X = RVal::GetSymbolValue(SymMgr, IPD);
       StateMgr.SetRVal(StateImpl, lval::DeclVal(IPD), X);

Modified: cfe/trunk/lib/Analysis/SymbolManager.cpp
URL: 
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Analysis/SymbolManager.cpp?rev=54716&r1=54715&r2=54716&view=diff

==============================================================================
--- cfe/trunk/lib/Analysis/SymbolManager.cpp (original)
+++ cfe/trunk/lib/Analysis/SymbolManager.cpp Tue Aug 12 22:28:04 2008
@@ -18,7 +18,8 @@
 
 SymbolID SymbolManager::getSymbol(VarDecl* D) {
 
-  assert (isa<ParmVarDecl>(D) || D->hasGlobalStorage());
+  assert (isa<ParmVarDecl>(D) || isa<ImplicitParamDecl>(D) || 
+          D->hasGlobalStorage());
   
   llvm::FoldingSetNodeID profile;
   


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