[PATCH] D12848: [Static Analyzer] Nullability checker optimization.

[Phabricator via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL247612: [Static Analyzer] Nullability checker optimization. (authored by xazax).

Changed prior to commit:
  http://reviews.llvm.org/D12848?vs=34693&id=34725#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D12848

Files:
  cfe/trunk/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp

Index: cfe/trunk/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp
===================================================================
--- cfe/trunk/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp
+++ cfe/trunk/lib/StaticAnalyzer/Checkers/NullabilityChecker.cpp
@@ -406,12 +406,17 @@
 /// Cleaning up the program state.
 void NullabilityChecker::checkDeadSymbols(SymbolReaper &SR,
                                           CheckerContext &C) const {
+  if (!SR.hasDeadSymbols())
+    return;
+
   ProgramStateRef State = C.getState();
   NullabilityMapTy Nullabilities = State->get<NullabilityMap>();
   for (NullabilityMapTy::iterator I = Nullabilities.begin(),
                                   E = Nullabilities.end();
        I != E; ++I) {
-    if (!SR.isLiveRegion(I->first)) {
+    const auto *Region = I->first->getAs<SymbolicRegion>();
+    assert(Region && "Non-symbolic region is tracked.");
+    if (SR.isDead(Region->getSymbol())) {
       State = State->remove<NullabilityMap>(I->first);
     }
   }


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