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51 lines
2.2 KiB
51 lines
2.2 KiB
4 months ago
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; RUN: rm -rf %t %t2
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; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
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; RUN: llvm-dwarfdump -name=vla_expr %t > %t2
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; RUN: llvm-dwarfdump -verbose %t >> %t2
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; RUN: cat %t2 | FileCheck %s
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; This test runs llvm-dwarfdump twice:
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; - First to get the debug entry for 'vla_expr'.
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; - Second to check that this is the entry referenced in DW_AT_count.
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; This way the test does not depend on the order in which DW_TAG_variables
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; are emitted.
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; CHECK: [[NODE:[0-9a-zA-Zx]+]]: DW_TAG_variable [4]
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; CHECK-NEXT: DW_AT_name {{.*}} "vla_expr"
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; CHECK: DW_AT_count [DW_FORM_ref4] (cu + {{.*}} => {[[NODE]]})
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define void @foo(i32 %n) !dbg !7 {
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entry:
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call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !12, metadata !19), !dbg !20
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ret void, !dbg !21
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}
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.1", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "vla.c", directory: "/path/to")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 5.0.1"}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 20, type: !8, isLocal: false, isDefinition: true, scopeLine: 20, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12, !13, !15}
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!12 = !DILocalVariable(name: "n", arg: 1, scope: !7, file: !1, line: 20, type: !10)
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!13 = !DILocalVariable(name: "vla_expr", scope: !7, file: !1, line: 21, type: !14)
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!14 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
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!15 = !DILocalVariable(name: "vla", scope: !7, file: !1, line: 21, type: !16)
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!16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, align: 32, elements: !17)
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!17 = !{!18, !18}
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!18 = !DISubrange(count: !13)
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!19 = !DIExpression()
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!20 = !DILocation(line: 20, column: 14, scope: !7)
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!21 = !DILocation(line: 22, column: 1, scope: !7)
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