Use the CGRecordLayoutBuilder even if there are no fields, because in C++ an empty class will have a padding byte.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77205 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/class-layout.cpp b/test/CodeGenCXX/class-layout.cpp
new file mode 100644
index 0000000..7255d3e
--- /dev/null
+++ b/test/CodeGenCXX/class-layout.cpp
@@ -0,0 +1,5 @@
+// RUN: clang-cc %s -emit-llvm -o %t &&
+
+// An extra byte shoudl be allocated for an empty class.
+// RUN: grep '%.truct.A = type { i8 }' %t
+struct A { } a;