forked from OSchip/llvm-project
40 lines
1.5 KiB
LLVM
40 lines
1.5 KiB
LLVM
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; Test unreachable llvm.dbg.label
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;
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; RUN: llc -filetype=obj -split-dwarf-file debug.dwo -mtriple=x86_64-unknown-linux-gnu -o - %s | llvm-dwarfdump -v - | FileCheck %s
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;
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; CHECK: .debug_info.dwo contents:
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; CHECK: DW_TAG_label
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; CHECK-NEXT: DW_AT_name {{.*}}"done"
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; CHECK-NOT: {{DW_TAG|NULL}}
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; CHECK: DW_AT_low_pc
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; CHECK: DW_TAG_label
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; CHECK-NEXT: DW_AT_name {{.*}}"removed"
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; CHECK-NOT: DW_AT_low_pc
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source_filename = "debug-label-unreached.c"
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define dso_local i32 @foo(i32 %a, i32 %b) !dbg !8 {
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entry:
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%sum = add nsw i32 %a, %b, !dbg !12
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call void @llvm.dbg.label(metadata !11), !dbg !12
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ret i32 %sum, !dbg !13
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}
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declare void @llvm.dbg.label(metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "debug-label-unreached.c", directory: "./")
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!2 = !{}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7}
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!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 8, type: !5, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9)
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!9 = !{!10, !11}
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!10 = !DILabel(scope: !8, name: "removed", file: !1, line: 11)
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!11 = !DILabel(scope: !8, name: "done", file: !1, line: 13)
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!12 = !DILocation(line: 13, column: 1, scope: !8)
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!13 = !DILocation(line: 14, column: 5, scope: !8)
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