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https://github.com/c64scene-ar/llvm-6502.git
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08e687e684
Verify that debug info intrinsic arguments are valid. (These checks
will not recurse through the full debug info graph, so they don't need
to be cordoned of in `DebugInfoVerifier`.)
With those checks in place, changing the `DbgIntrinsicInst` accessors to
downcast to `MDLocalVariable` and `MDExpression` is natural (added isa
specializations in `Metadata.h` to support this).
Added tests to `test/Verifier` for the new -verify checks, and fixed the
debug info in all the in-tree tests.
If you have out-of-tree testcases that have started to fail to -verify,
hopefully the verify checks are helpful. The most likely problem is
that the expression argument is `!{}` (instead of `!MDExpression()`).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232296 91177308-0d34-0410-b5e6-96231b3b80d8
59 lines
2.7 KiB
LLVM
59 lines
2.7 KiB
LLVM
; RUN: opt -strip-dead-debug-info -verify %s -S | FileCheck %s
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; CHECK: ModuleID = '{{.*}}'
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; CHECK-NOT: bar
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; CHECK-NOT: abcd
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@xyz = global i32 2
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #0
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; Function Attrs: nounwind readnone ssp
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define i32 @fn() #1 {
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entry:
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ret i32 0, !dbg !18
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}
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; Function Attrs: nounwind readonly ssp
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define i32 @foo(i32 %i) #2 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %i, i64 0, metadata !15, metadata !MDExpression()), !dbg !20
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%.0 = load i32, i32* @xyz, align 4
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ret i32 %.0, !dbg !21
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}
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind readnone ssp }
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attributes #2 = { nounwind readonly ssp }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!25}
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!0 = !MDCompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !23, globals: !24)
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!1 = !MDFile(filename: "g.c", directory: "/tmp/")
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!2 = !{null}
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!3 = !MDSubprogram(name: "bar", line: 5, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !1, scope: null, type: !4)
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!4 = !MDSubroutineType(types: !2)
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!5 = !MDFile(filename: "g.c", directory: "/tmp/")
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!6 = !MDSubprogram(name: "fn", linkageName: "fn", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !1, scope: null, type: !7, function: i32 ()* @fn)
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!7 = !MDSubroutineType(types: !8)
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!8 = !{!9}
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!9 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !MDSubprogram(name: "foo", linkageName: "foo", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !1, scope: null, type: !11, function: i32 (i32)* @foo)
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!11 = !MDSubroutineType(types: !12)
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!12 = !{!9, !9}
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!13 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "bb", line: 5, scope: !14, file: !5, type: !9)
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!14 = distinct !MDLexicalBlock(line: 5, column: 0, file: !1, scope: !3)
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!15 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 7, arg: 0, scope: !10, file: !5, type: !9)
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!16 = !MDGlobalVariable(name: "abcd", line: 2, isLocal: true, isDefinition: true, scope: !5, file: !5, type: !9)
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!17 = !MDGlobalVariable(name: "xyz", line: 3, isLocal: false, isDefinition: true, scope: !5, file: !5, type: !9, variable: i32* @xyz)
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!18 = !MDLocation(line: 6, scope: !19)
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!19 = distinct !MDLexicalBlock(line: 6, column: 0, file: !1, scope: !6)
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!20 = !MDLocation(line: 7, scope: !10)
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!21 = !MDLocation(line: 10, scope: !22)
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!22 = distinct !MDLexicalBlock(line: 7, column: 0, file: !1, scope: !10)
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!23 = !{!3, !6, !10}
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!24 = !{!16, !17}
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!25 = !{i32 1, !"Debug Info Version", i32 3}
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