Make Expr::isConstantInitializer match IRGen.

Sema needs to be able to accurately determine what will be
emitted as a constant initializer and what will not, so
we get accurate errors in C and accurate -Wglobal-constructors
warnings in C++.  This makes Expr::isConstantInitializer match
CGExprConstant as closely as possible.

llvm-svn: 186464

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/warn-global-constructors.cpp b/clang/test/SemaCXX/warn-global-constructors.cpp
index 6330958df70..f57f0de7081 100644
--- a/clang/test/SemaCXX/warn-global-constructors.cpp
+++ b/clang/test/SemaCXX/warn-global-constructors.cpp
@@ -95,3 +95,9 @@ namespace pr8095 {
     static Bar b;
   }
 }
+
+namespace referencemember {
+  struct A { int &a; };
+  int a;
+  A b = { a };
+}