test/DebugInfo/bug_null_debuginfo.ll

; RUN: llc < %s

!llvm.dbg.cu = !{!0}

!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"", i1 false, metadata !"", i32 0, null, null, null,  null, null, metadata !""} ; [ DW_TAG_compile_unit ]
!1 = metadata !{metadata !"t", metadata !""}