Make Clang static analyzer skip function template definitions. This fixes Clang PR 8426, 8427, & 8433. Reviewed by Ted Kremenek and Doug Gregor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117853 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 51 insertions, 2 deletions

diff --git a/lib/Checker/AnalysisConsumer.cpp b/lib/Checker/AnalysisConsumer.cpp
index f902124613..e1591a6a64 100644
--- a/lib/Checker/AnalysisConsumer.cpp
+++ b/lib/Checker/AnalysisConsumer.cpp
@@ -211,8 +211,10 @@ void AnalysisConsumer::HandleTranslationUnit(ASTContext &C) {
     case Decl::CXXMethod:
     case Decl::Function: {
       FunctionDecl* FD = cast<FunctionDecl>(D);
-      
-      if (FD->isThisDeclarationADefinition()) {
+      // We skip function template definitions, as their semantics is
+      // only determined when they are instantiated.
+      if (FD->isThisDeclarationADefinition() &&
+          !FD->isDependentContext()) {
         if (!Opts.AnalyzeSpecificFunction.empty() &&
             FD->getDeclName().getAsString() != Opts.AnalyzeSpecificFunction)
           break;
diff --git a/test/Analysis/misc-ps-region-store.cpp b/test/Analysis/misc-ps-region-store.cpp
index bfa5e5cbb9..dbdfa772a6 100644
--- a/test/Analysis/misc-ps-region-store.cpp
+++ b/test/Analysis/misc-ps-region-store.cpp
@@ -159,3 +159,50 @@ int r8375510(R8375510 x, R8375510 y) {
   for (; ; x++) { }
 }
 
+// PR8426 -- this used to crash.
+
+void Use(void* to);
+
+template <class T> class Foo {
+  ~Foo();
+  struct Bar;
+  Bar* bar_;
+};
+
+template <class T> Foo<T>::~Foo() {
+  Use(bar_);
+  T::DoSomething();
+  bar_->Work();
+}
+
+// PR8427 -- this used to crash.
+
+class Dummy {};
+
+bool operator==(Dummy, int);
+
+template <typename T>
+class Foo2 {
+  bool Bar();
+};
+
+template <typename T>
+bool Foo2<T>::Bar() {
+  return 0 == T();
+}
+
+// PR8433 -- this used to crash.
+
+template <typename T>
+class Foo3 {
+ public:
+  void Bar();
+  void Baz();
+  T value_;
+};
+
+template <typename T>
+void Foo3<T>::Bar() {
+  Baz();
+  value_();
+}