llvm-mirror/test/DebugInfo/skeletoncu.ll

; 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: DW_AT_GNU_dwo_name {{.*}}"my.dwo"
; REQUIRES: default_triple
 
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}

!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: false, runtimeVersion: 2, splitDebugFilename: "my.dwo", emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2, dwoId: 43981)
!1 = !DIFile(filename: "<stdin>", directory: "/")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
Debug Info: Emit the dwo_name only in skeleton CUs, not in DWOs. llvm-svn: 248340 2015-09-23 01:21:00 +02:00			`; 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: DW_AT_GNU_dwo_name {{.*}}"my.dwo"`
Add REQUIRES: default_triple to these testcases. llvm-svn: 248452 2015-09-24 02:35:14 +02:00			`; REQUIRES: default_triple`

Debug Info: Emit the dwo_name only in skeleton CUs, not in DWOs. llvm-svn: 248340 2015-09-23 01:21:00 +02:00			`!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 17:57:41 +02:00			`!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "LLVM", isOptimized: false, runtimeVersion: 2, splitDebugFilename: "my.dwo", 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 01:21:00 +02:00			`!1 = !DIFile(filename: "<stdin>", directory: "/")`
			`!2 = !{}`
			`!3 = !{i32 2, !"Dwarf Version", i32 4}`
			`!4 = !{i32 2, !"Debug Info Version", i32 3}`