55 lines
2.4 KiB
LLVM
55 lines
2.4 KiB
LLVM
; RUN: llvm-as %s -o %t.bc
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; RUN: llvm-as %p/Inputs/only-needed-debug-metadata.ll -o %t2.bc
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; Without -only-needed, we need to link in both DISubprogram.
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; RUN: llvm-link -S %t2.bc %t.bc | FileCheck %s
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; CHECK: distinct !DISubprogram(name: "foo"
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; CHECK: distinct !DISubprogram(name: "unused"
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; With -only-needed, we only need to link in foo's DISubprogram.
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; RUN: llvm-link -S -only-needed %t2.bc %t.bc | FileCheck %s -check-prefix=ONLYNEEDED
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; ONLYNEEDED: distinct !DISubprogram(name: "foo"
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; ONLYNEEDED-NOT: distinct !DISubprogram(name: "unused"
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source_filename = "test/Linker/only-needed-debug-metadata.ll"
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@X = global i32 5, !dbg !0
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@U = global i32 6, !dbg !6
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@U_linkonce = linkonce_odr hidden global i32 6
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define i32 @foo() !dbg !12 {
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ret i32 7, !dbg !17
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}
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define i32 @unused() !dbg !18 {
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ret i32 8, !dbg !21
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}
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!9, !10}
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!llvm.ident = !{!11}
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!0 = !DIGlobalVariableExpression(var: !1)
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!1 = !DIGlobalVariable(name: "X", scope: !2, file: !3, line: 1, type: !8, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "linkused2.c", directory: "/usr/local/google/home/tejohnson/llvm/tmp")
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!4 = !{}
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!5 = !{!0, !6}
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!6 = !DIGlobalVariableExpression(var: !7)
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!7 = !DIGlobalVariable(name: "U", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true)
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!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !{i32 2, !"Dwarf Version", i32 4}
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!10 = !{i32 2, !"Debug Info Version", i32 3}
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!11 = !{!"clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)"}
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!12 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 4, type: !13, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !15)
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!13 = !DISubroutineType(types: !14)
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!14 = !{!8, !8}
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!15 = !{!16}
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!16 = !DILocalVariable(name: "x", arg: 1, scope: !12, file: !3, line: 4, type: !8)
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!17 = !DILocation(line: 4, column: 13, scope: !12)
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!18 = distinct !DISubprogram(name: "unused", scope: !3, file: !3, line: 8, type: !19, isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !2, variables: !4)
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!19 = !DISubroutineType(types: !20)
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!20 = !{!8}
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!21 = !DILocation(line: 9, column: 3, scope: !18)
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