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llvm-project/llvm/test/DebugInfo/dwo.ll

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Debug Info: Emit the dwo_name only in skeleton CUs, not in DWOs. llvm-svn: 248340
2015-09-23 07:21:00 +08:00
; RUN: %llc_dwarf %s -filetype=obj -o %t
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; CHECK: DW_TAG_compile_unit
; CHECK: DW_AT_GNU_dwo_id {{.*}}abcd
; CHECK-NOT: DW_AT_GNU_dwo_name
Add REQUIRES: default_triple to these testcases. llvm-svn: 248452
2015-09-24 08:35:14 +08:00
; REQUIRES: default_triple
Debug Info: Emit the dwo_name only in skeleton CUs, not in DWOs. llvm-svn: 248340
2015-09-23 07:21:00 +08:00
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2, dwoId: 43981)
Debug Info: Emit the dwo_name only in skeleton CUs, not in DWOs. llvm-svn: 248340
2015-09-23 07:21:00 +08:00
!1 = !DIFile(filename: "<stdin>", directory: "/")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}