Set the "implicitly inline" bit on a method as soon as we see a definition

within the class.  Teach IR gen to look for function definitions in record
lexical contexts when deciding whether to emit a function whose address    
was taken.  Fixes PR8789.

llvm-svn: 121833

1 files changed, 24 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/inline-functions.cpp b/clang/test/CodeGenCXX/inline-functions.cpp
index 63a523a9dec..69dfe0db98f 100644
--- a/clang/test/CodeGenCXX/inline-functions.cpp
+++ b/clang/test/CodeGenCXX/inline-functions.cpp
@@ -29,3 +29,27 @@ inline void f1(int);
 void f1(int) { }
 
 void test_f1() { f1(17); }
+
+// PR8789
+namespace test1 {
+  template <typename T> class ClassTemplate {
+  private:
+    friend void T::func();
+    void g() {}
+  };
+
+  // CHECK: define linkonce_odr void @_ZN5test11C4funcEv(
+
+  class C {
+  public:
+    void func() {
+      ClassTemplate<C> ct;
+      ct.g();
+    }
+  };
+
+  void f() {
+    C c;
+    c.func();
+  }
+}