This test program crashes in CodeGen. struct s { short a; int b; } x = {1, 1}; "struct s" converts to LLVM type {i16, i8, i8, i32}, padded with i8. CodeGen attempts llvm::ConstantStruct::get({i16, i8, i8, i32}, {1, 1}) and crashes, since the type has 4 elements but initializer has only 2. -- Seo Sanghyeon