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87c77233df
Since r241097, `DIBuilder` has only created distinct `DICompileUnit`s.
The backend is liable to start relying on that (if it hasn't already),
so make uniquable `DICompileUnit`s illegal and automatically upgrade old
bitcode. This is a nice cleanup, since we can remove an unnecessary
`DenseSet` (and the associated uniquing info) from `LLVMContextImpl`.
Almost all the testcases were updated with this script:
git grep -e '= !DICompileUnit' -l -- test |
grep -v test/Bitcode |
xargs sed -i '' -e 's,= !DICompileUnit,= distinct !DICompileUnit,'
I imagine something similar should work for out-of-tree testcases.
llvm-svn: 243885
27 lines
1.2 KiB
LLVM
27 lines
1.2 KiB
LLVM
; RUN: llc %s -o /dev/null
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; Here variable bar is optimized away. Do not trip over while trying to generate debug info.
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define i32 @foo() nounwind uwtable readnone ssp {
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entry:
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ret i32 42, !dbg !15
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!18}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 (trunk 139632)", isOptimized: true, emissionKind: 0, file: !17, enums: !1, retainedTypes: !1, subprograms: !3, globals: !12)
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!1 = !{}
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!3 = !{!5}
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!5 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !17, scope: !6, type: !7, function: i32 ()* @foo)
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!6 = !DIFile(filename: "fb.c", directory: "/private/tmp")
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!7 = !DISubroutineType(types: !8)
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!8 = !{!9}
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!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!12 = !{!14}
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!14 = !DIGlobalVariable(name: "bar", line: 2, isLocal: true, isDefinition: true, scope: !5, file: !6, type: !9)
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!15 = !DILocation(line: 3, column: 3, scope: !16)
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!16 = distinct !DILexicalBlock(line: 1, column: 11, file: !17, scope: !5)
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!17 = !DIFile(filename: "fb.c", directory: "/private/tmp")
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!18 = !{i32 1, !"Debug Info Version", i32 3}
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