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182c5d61c0
TypeFinder did not find types under DIArgList. This resulted in a case
of invalid IR after GlobalOpt removed a global that was the only
non-DIArgList use of a struct type.
error: use of undefined type named 'struct.S'
call void @llvm.dbg.value(
metadata !DIArgList([1 x %struct.S]* undef, i64 %idxprom),
metadata !24, metadata !DIExpression([...]))
Reviewed By: jmorse
Differential Revision: https://reviews.llvm.org/D103306
60 lines
2.8 KiB
LLVM
60 lines
2.8 KiB
LLVM
; RUN: opt < %s -globalopt -S | llvm-as | llvm-dis | FileCheck %s
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; The %struct.S type would not get emitted after @s was removed, resulting in
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; llvm-as failing to parse the dbg.value intrinsic using that type. The
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; FileCheck checks are just added to verify that the desired transformation is
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; done.
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; CHECK-NOT: @s
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; CHECK: %struct.S = type { i32 }
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; CHECK-NOT: @s
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; CHECK: call void @llvm.dbg.value(metadata !DIArgList([1 x %struct.S]* undef
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%struct.S = type { i32 }
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@s = internal global [1 x %struct.S] zeroinitializer, align 4, !dbg !0
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@idx = dso_local global i32 0, align 4, !dbg !6
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define dso_local void @fn() !dbg !20 {
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entry:
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%0 = load i32, i32* @idx, align 4, !dbg !26
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%idxprom = sext i32 %0 to i64, !dbg !26
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call void @llvm.dbg.value(metadata !DIArgList([1 x %struct.S]* @s, i64 %idxprom), metadata !24, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_constu, 4, DW_OP_mul, DW_OP_plus, DW_OP_stack_value)), !dbg !26
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ret void, !dbg !26
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!15, !16, !17, !18}
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!llvm.ident = !{!19}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 1, type: !9, isLocal: true, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)
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!3 = !DIFile(filename: "foo.c", directory: "/")
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!4 = !{}
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!5 = !{!0, !6}
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!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
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!7 = distinct !DIGlobalVariable(name: "idx", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true)
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, size: 32, elements: !13)
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!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !3, line: 1, size: 32, elements: !11)
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!11 = !{!12}
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!12 = !DIDerivedType(tag: DW_TAG_member, name: "data", scope: !10, file: !3, line: 1, baseType: !8, size: 32)
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!13 = !{!14}
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!14 = !DISubrange(count: 1)
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!15 = !{i32 7, !"Dwarf Version", i32 4}
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!16 = !{i32 2, !"Debug Info Version", i32 3}
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!17 = !{i32 1, !"wchar_size", i32 4}
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!18 = !{i32 7, !"uwtable", i32 1}
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!19 = !{!"clang version 13.0.0"}
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!20 = distinct !DISubprogram(name: "fn", scope: !3, file: !3, line: 4, type: !21, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !23)
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!21 = !DISubroutineType(types: !22)
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!22 = !{null}
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!23 = !{!24}
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!24 = !DILocalVariable(name: "local", scope: !20, file: !3, line: 5, type: !25)
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!25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64)
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!26 = !DILocation(line: 5, scope: !20)
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