[c++17] Visit class template explicit specializations just like all other class definitions in codegen.
If an explicit specialization has a static data member, it may be a definition and we may need to register it for emission.
llvm-svn: 317296
diff --git a/clang/test/CodeGenCXX/cxx1z-inline-variables.cpp b/clang/test/CodeGenCXX/cxx1z-inline-variables.cpp
index 0d2ec92..2d16acd 100644
--- a/clang/test/CodeGenCXX/cxx1z-inline-variables.cpp
+++ b/clang/test/CodeGenCXX/cxx1z-inline-variables.cpp
@@ -67,6 +67,18 @@
template<> int X<int>::b = 20;
template<> inline int X<int>::c = 30;
+template<typename T> struct Y;
+template<> struct Y<int> {
+ static constexpr int a = 123;
+ static constexpr int b = 456;
+ static constexpr int c = 789;
+};
+// CHECK: @_ZN1YIiE1aE = weak_odr constant i32 123
+constexpr int Y<int>::a;
+// CHECK: @_ZN1YIiE1bE = linkonce_odr constant i32 456
+const int &yib = Y<int>::b;
+// CHECK-NOT: @_ZN1YIiE1cE
+
// CHECK-LABEL: define {{.*}}global_var_init
// CHECK: call i32 @_Z1fv