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5420de3f15
This patch reverses the edge from DIGlobalVariable to GlobalVariable. This will allow us to more easily preserve debug info metadata when manipulating global variables. Fixes PR30362. A program for upgrading test cases is attached to that bug. Differential Revision: http://reviews.llvm.org/D20147 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281284 91177308-0d34-0410-b5e6-96231b3b80d8
49 lines
2.3 KiB
LLVM
49 lines
2.3 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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@X = global i32 5, !dbg !14
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@U = global i32 6, !dbg !15
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@U_linkonce = linkonce_odr hidden global i32 6
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define i32 @foo() !dbg !4 {
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ret i32 7, !dbg !20
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}
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define i32 @unused() !dbg !10 {
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ret i32 8, !dbg !21
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!16, !17}
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!llvm.ident = !{!18}
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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: FullDebug, enums: !2, globals: !13)
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!1 = !DIFile(filename: "linkused2.c", directory: "/usr/local/google/home/tejohnson/llvm/tmp")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, type: !5, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7, !7}
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!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !1, line: 4, type: !7)
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!10 = distinct !DISubprogram(name: "unused", scope: !1, file: !1, line: 8, type: !11, isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !0, variables: !2)
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!11 = !DISubroutineType(types: !12)
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!12 = !{!7}
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!13 = !{!14, !15}
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!14 = !DIGlobalVariable(name: "X", scope: !0, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true)
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!15 = !DIGlobalVariable(name: "U", scope: !0, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true)
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!16 = !{i32 2, !"Dwarf Version", i32 4}
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!17 = !{i32 2, !"Debug Info Version", i32 3}
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!18 = !{!"clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)"}
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!19 = !DIExpression()
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!20 = !DILocation(line: 4, column: 13, scope: !4)
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!21 = !DILocation(line: 9, column: 3, scope: !10)
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