50 lines
2.2 KiB
LLVM
50 lines
2.2 KiB
LLVM
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; Check that the DISubrange 'count' reference is correctly uniqued and restored,
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; since it can take the value of either a signed integer or a DIVariable.
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; RUN: llvm-as < %s | llvm-dis | FileCheck %s
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define void @foo(i32 %n) {
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entry:
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%0 = zext i32 %n to i64
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%vla = alloca i32, i64 %0, align 16
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call void @llvm.dbg.declare(metadata i32* %vla, metadata !19, metadata !12), !dbg !18
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ret void
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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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: false, 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: false, 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 = !{!16, !19}
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!12 = !DIExpression()
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!16 = !DILocalVariable(name: "vla_expr", scope: !7, file: !1, line: 21, type: !17)
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!17 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
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!18 = !DILocation(line: 21, column: 7, scope: !7)
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!19 = !DILocalVariable(name: "vla", scope: !7, file: !1, line: 21, type: !20)
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!20 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, align: 32, elements: !21)
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!21 = !{!22, !23, !24, !25, !26, !27}
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; CHECK-DAG: ![[NODE:[0-9]+]] = !DILocalVariable(name: "vla_expr"
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; CHECK-DAG: ![[RANGE:[0-9]+]] = !DISubrange(count: ![[NODE]])
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; CHECK-DAG: ![[CONST:[0-9]+]] = !DISubrange(count: 16)
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; CHECK-DAG: ![[MULTI:[0-9]+]] = !{![[RANGE]], ![[RANGE]], ![[CONST]], ![[CONST]], ![[CONST]], ![[CONST]]}
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; CHECK-DAG: elements: ![[MULTI]]
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!22 = !DISubrange(count: !16)
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!23 = !DISubrange(count: !16)
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!24 = !DISubrange(count: 16)
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!25 = !DISubrange(count: i16 16)
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!26 = !DISubrange(count: i32 16)
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!27 = !DISubrange(count: i64 16)
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