LTO: Add a testcase for linking modules with incompatible Debug Info

Versions.
rdar://problem/16926122

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209183 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adrian Prantl 2014-05-19 23:41:25 +00:00
parent dce55ec575
commit 30e5830301
2 changed files with 26 additions and 0 deletions

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; RUN: llvm-link %s %p/debug-info-version-b.ll -S -o - | FileCheck %s
; Test linking of incompatible debug info versions. The debug info
; from the other file should be dropped.
; CHECK-NOT: metadata !{metadata !"b.c", metadata !""}
; CHECK: metadata !{metadata !"a.c", metadata !""}
; CHECK-NOT: metadata !{metadata !"b.c", metadata !""}
!llvm.module.flags = !{ !0 }
!llvm.dbg.cu = !{!1}
!0 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
!1 = metadata !{i32 589841, metadata !2, i32 12, metadata !"clang", i1 true, metadata !"", i32 0, metadata !3, metadata !3, metadata !3, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
!2 = metadata !{metadata !"a.c", metadata !""}
!3 = metadata !{}

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; RUN: true
; Companion for debug-info-version-a.ll.
!llvm.module.flags = !{ !0 }
!llvm.dbg.cu = !{!1}
!0 = metadata !{i32 2, metadata !"Debug Info Version", i32 42}
!1 = metadata !{i32 589841, metadata !2, i32 12, metadata !"clang", metadata !"I AM UNEXPECTED!"} ; [ DW_TAG_compile_unit ]
!2 = metadata !{metadata !"b.c", metadata !""}
!3 = metadata !{}