[analyzer] Fix an assertion fail in VirtualCallChecker

Differential Revision: https://reviews.llvm.org/D37978

llvm-svn: 313866

clang/lib/StaticAnalyzer/Checkers/VirtualCallChecker.cpp

@@ -146,7 +146,7 @@ static bool isVirtualCall(const CallExpr *CE) {
     if (CME->getQualifier())
       CallIsNonVirtual = true;
 
-    if (const Expr *Base = CME->getBase()->IgnoreImpCasts()) {
+    if (const Expr *Base = CME->getBase()) {
       // The most derived class is marked final.
       if (Base->getBestDynamicClassType()->hasAttr<FinalAttr>())
         CallIsNonVirtual = true;

clang/test/Analysis/virtualcall.cpp

@@ -271,3 +271,24 @@ int main() {
 #if !PUREONLY
 	//expected-note-re@-2 2{{{{^}}Calling '~E'}}
 #endif
+
+namespace PR34451 {
+struct a {
+  void b() {
+    a c[1];
+    c->b();
+  }
+};
+
+class e {
+ public:
+  void b() const;
+};
+
+class c {
+  void m_fn2() const;
+  e d[];
+};
+
+void c::m_fn2() const { d->b(); }
+}