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Conflicting debug info for function arguments causes hard-to-debug assertions in the DWARF backend, so the Verifier should reject it. For performance reasons this only checks function arguments from non-inlined debug intrinsics for now. rdar://problem/30520286 This reapplies r295749 after fixing PR32042. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296543 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
1.1 KiB
LLVM
27 lines
1.1 KiB
LLVM
; RUN: not llvm-as < %s -o /dev/null 2>&1 | FileCheck %s
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
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define void @foo() !dbg !2 {
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entry:
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%a = alloca i32
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; CHECK: conflicting debug info for argument
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call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !3, metadata !DIExpression()), !dbg !6
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call void @llvm.dbg.declare(metadata i32* %a, metadata !4, metadata !DIExpression()), !dbg !6
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ret void, !dbg !6
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", emissionKind: FullDebug)
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!1 = !DIFile(filename: "x.c", directory: "/")
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!2 = distinct !DISubprogram(name: "foo", scope: !0, isDefinition: true, unit: !0)
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!3 = !DILocalVariable(name: "a", arg: 1, scope: !2, file: !1, line: 1, type: !5)
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!4 = !DILocalVariable(name: "b", arg: 1, scope: !2, file: !1, line: 1, type: !5)
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!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!6 = !DILocation(line: 1, scope: !2)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 1, !"Debug Info Version", i32 3}
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