Implement the Itanium C++ ABI's mangling rule for

non-instantiation-dependent sizeof and alignof expressions.

llvm-svn: 134963

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/mangle.cpp b/clang/test/CodeGenCXX/mangle.cpp
index 8f1c682bb06..56e70a2b151 100644
--- a/clang/test/CodeGenCXX/mangle.cpp
+++ b/clang/test/CodeGenCXX/mangle.cpp
@@ -804,9 +804,25 @@ namespace test33 {
 }
 
 namespace test34 {
+  // Mangling for instantiation-dependent decltype expressions.
   template<typename T>
   void f(decltype(sizeof(decltype(T() + T())))) {}
 
   // CHECK: define weak_odr void @_ZN6test341fIiEEvDTstDTplcvT__EcvS1__EEE
   template void f<int>(decltype(sizeof(1)));
+
+  // Mangling for non-instantiation-dependent sizeof expressions.
+  template<unsigned N>
+  void f2(int (&)[N + sizeof(int*)]) {}
+
+  // CHECK: define weak_odr void @_ZN6test342f2ILj4EEEvRAplT_Lm8E_i
+  template void f2<4>(int (&)[4 + sizeof(int*)]);
+
+  // Mangling for non-instantiation-dependent sizeof expressions
+  // involving an implicit conversion of the result of the sizeof.
+  template<unsigned long long N>
+  void f3(int (&)[N + sizeof(int*)]) {}
+
+  // CHECK: define weak_odr void @_ZN6test342f3ILy4EEEvRAplT_Ly8E_i
+  template void f3<4>(int (&)[4 + sizeof(int*)]);
 }