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llvm-project/llvm/test/DebugInfo/X86/empty.ll

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Split test in two to handle building without x86. llvm-svn: 231886
2015-03-11 07:44:12 +08:00
; RUN: llc -mtriple i686-pc-cygwin < %s -filetype=obj | llvm-dwarfdump - | FileCheck %s
; RUN: llc -mtriple i686-pc-cygwin -split-dwarf=Enable < %s -filetype=obj | llvm-dwarfdump - | FileCheck --check-prefix=FISSION %s
; Expect no line table entry since there are no functions and file references in this compile unit
; CHECK: .debug_line contents:
; CHECK: Line table prologue:
; CHECK: total_length: 0x00000019
; CHECK-NOT: file_names[
; CHECK: .debug_pubnames contents:
; CHECK-NOT: Offset
; CHECK: .debug_pubtypes contents:
; CHECK-NOT: Offset
; Don't emit DW_AT_addr_base when there are no addresses.
; FISSION-NOT: DW_AT_GNU_addr_base [DW_FORM_sec_offset]
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!5}
[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, producer: "clang version 3.1 (trunk 143523)", isOptimized: true, emissionKind: FullDebug, file: !4, enums: !2, retainedTypes: !2, globals: !2)
Split test in two to handle building without x86. llvm-svn: 231886
2015-03-11 07:44:12 +08:00
!2 = !{}
IR: Give 'DI' prefix to debug info metadata Finish off PR23080 by renaming the debug info IR constructs from `MD*` to `DI*`. The last of the `DIDescriptor` classes were deleted in r235356, and the last of the related typedefs removed in r235413, so this has all baked for about a week. Note: If you have out-of-tree code (like a frontend), I recommend that you get everything compiling and tests passing with the *previous* commit before updating to this one. It'll be easier to keep track of what code is using the `DIDescriptor` hierarchy and what you've already updated, and I think you're extremely unlikely to insert bugs. YMMV of course. Back to *this* commit: I did this using the rename-md-di-nodes.sh upgrade script I've attached to PR23080 (both code and testcases) and filtered through clang-format-diff.py. I edited the tests for test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns were off-by-three. It should work on your out-of-tree testcases (and code, if you've followed the advice in the previous paragraph). Some of the tests are in badly named files now (e.g., test/Assembler/invalid-mdcompositetype-missing-tag.ll should be 'dicompositetype'); I'll come back and move the files in a follow-up commit. llvm-svn: 236120
2015-04-30 00:38:44 +08:00
!3 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
!4 = !DIFile(filename: "empty.c", directory: "/home/nlewycky")
Split test in two to handle building without x86. llvm-svn: 231886
2015-03-11 07:44:12 +08:00
!5 = !{i32 1, !"Debug Info Version", i32 3}