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Since Split DWARF needs to name the actual .dwo file that is generated, it can't be known at the time the llvm::Module is produced as it may be merged with other Modules before the object is generated and that object may be generated with any name. By passing the Split DWARF file name when LLVM is producing object code the .dwo file name in the object file can match correctly. The support for Split DWARF for implicit modules remains the same - using metadata to store the dwo name and dwo id so that potentially multiple skeleton CUs referring to different dwo files can be generated from one llvm::Module. llvm-svn: 301062
42 lines
2.5 KiB
LLVM
42 lines
2.5 KiB
LLVM
; RUN: llc -split-dwarf-file=foo.dwo -O0 < %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; CHECK-NOT: DW_TAG_subprogram
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; IR generated from the following source:
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; void f1();
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; inline __attribute__((always_inline)) void f2() {
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; f1();
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; }
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; void f3() {
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; f2();
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; }
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; Function Attrs: uwtable
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define void @_Z2f3v() #0 !dbg !5 {
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entry:
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call void @_Z2f1v(), !dbg !8
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ret void, !dbg !11
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}
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declare void @_Z2f1v() #1
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attributes #0 = { uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3}
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!llvm.ident = !{!4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 4.0.0 (trunk 279571) (llvm/trunk 279602)", isOptimized: false, runtimeVersion: 0, splitDebugFilename: "fission-no-inlining.dwo", emissionKind: FullDebug, enums: !2, splitDebugInlining: false)
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!1 = !DIFile(filename: "fission-no-inlining.cpp", directory: "/tmp/dbginfo")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{!"clang version 4.0.0 (trunk 279571) (llvm/trunk 279602)"}
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!5 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 5, type: !6, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!6 = !DISubroutineType(types: !7)
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!7 = !{null}
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!8 = !DILocation(line: 3, column: 3, scope: !9, inlinedAt: !10)
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!9 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !6, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
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!10 = distinct !DILocation(line: 6, column: 3, scope: !5)
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!11 = !DILocation(line: 7, column: 1, scope: !5)
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