0e7c82cb69
Summary: Third patch split out from http://reviews.llvm.org/D14752. Only map in needed DISubroutine metadata (imported or otherwise linked in functions and other DISubroutine referenced by inlined instructions). This is supported for ThinLTO, LTO and llvm-link --only-needed, with associated tests for each one. Depends on D14838. Reviewers: dexonsmith, joker.eph Subscribers: davidxl, llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D14843 llvm-svn: 256003
28 lines
1023 B
LLVM
28 lines
1023 B
LLVM
@X = external global i32
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declare i32 @foo()
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define void @bar() !dbg !4 {
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load i32, i32* @X, !dbg !10
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call i32 @foo(), !dbg !11
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ret void, !dbg !12
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3)
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!1 = !DIFile(filename: "linkused.b.c", directory: ".")
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!2 = !{}
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!3 = !{!4}
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!4 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 5, type: !5, isLocal: false, isDefinition: true, scopeLine: 5, isOptimized: true, variables: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{null}
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{!"clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)"}
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!10 = !DILocation(line: 6, column: 7, scope: !4)
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!11 = !DILocation(line: 6, column: 3, scope: !4)
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!12 = !DILocation(line: 7, column: 1, scope: !4)
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