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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
142 lines
7.3 KiB
LLVM
142 lines
7.3 KiB
LLVM
; RUN: sed -e 's|PATTERN|%/T|g' %s | opt -insert-gcov-profiling -disable-output
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; RUN: rm %T/linezero.gcno
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; This is a crash test.
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.vector = type { i8 }
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; Function Attrs: nounwind
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define i32 @_Z4testv() #0 {
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entry:
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%retval = alloca i32, align 4
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%__range = alloca %struct.vector*, align 8
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%ref.tmp = alloca %struct.vector, align 1
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%undef.agg.tmp = alloca %struct.vector, align 1
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%__begin = alloca i8*, align 8
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%__end = alloca i8*, align 8
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%spec = alloca i8, align 1
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call void @llvm.dbg.declare(metadata %struct.vector** %__range, metadata !27, metadata !MDExpression()), !dbg !30
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br label %0
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; <label>:0 ; preds = %entry
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call void @_Z13TagFieldSpecsv(), !dbg !31
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store %struct.vector* %ref.tmp, %struct.vector** %__range, align 8, !dbg !31
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call void @llvm.dbg.declare(metadata i8** %__begin, metadata !32, metadata !MDExpression()), !dbg !30
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%1 = load %struct.vector*, %struct.vector** %__range, align 8, !dbg !31
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%call = call i8* @_ZN6vector5beginEv(%struct.vector* %1), !dbg !31
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store i8* %call, i8** %__begin, align 8, !dbg !31
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call void @llvm.dbg.declare(metadata i8** %__end, metadata !33, metadata !MDExpression()), !dbg !30
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%2 = load %struct.vector*, %struct.vector** %__range, align 8, !dbg !31
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%call1 = call i8* @_ZN6vector3endEv(%struct.vector* %2), !dbg !31
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store i8* %call1, i8** %__end, align 8, !dbg !31
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br label %for.cond, !dbg !31
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for.cond: ; preds = %for.inc, %0
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%3 = load i8*, i8** %__begin, align 8, !dbg !34
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%4 = load i8*, i8** %__end, align 8, !dbg !34
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%cmp = icmp ne i8* %3, %4, !dbg !34
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br i1 %cmp, label %for.body, label %for.end, !dbg !34
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for.body: ; preds = %for.cond
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call void @llvm.dbg.declare(metadata i8* %spec, metadata !37, metadata !MDExpression()), !dbg !31
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%5 = load i8*, i8** %__begin, align 8, !dbg !38
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%6 = load i8, i8* %5, align 1, !dbg !38
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store i8 %6, i8* %spec, align 1, !dbg !38
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br label %for.inc, !dbg !38
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for.inc: ; preds = %for.body
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%7 = load i8*, i8** %__begin, align 8, !dbg !40
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%incdec.ptr = getelementptr inbounds i8, i8* %7, i32 1, !dbg !40
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store i8* %incdec.ptr, i8** %__begin, align 8, !dbg !40
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br label %for.cond, !dbg !40
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for.end: ; preds = %for.cond
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call void @llvm.trap(), !dbg !42
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unreachable, !dbg !42
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return: ; No predecessors!
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%8 = load i32, i32* %retval, !dbg !44
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ret i32 %8, !dbg !44
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare void @_Z13TagFieldSpecsv() #2
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declare i8* @_ZN6vector5beginEv(%struct.vector*) #2
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declare i8* @_ZN6vector3endEv(%struct.vector*) #2
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; Function Attrs: noreturn nounwind
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declare void @llvm.trap() #3
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; Function Attrs: nounwind
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define void @_Z2f1v() #0 {
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entry:
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br label %0
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; <label>:0 ; preds = %entry
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ret void, !dbg !45
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}
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attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { noreturn nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!23, !24}
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!llvm.gcov = !{!25}
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!llvm.ident = !{!26}
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!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 (trunk 209871)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !14, globals: !2, imports: !2)
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!1 = !MDFile(filename: "<stdin>", directory: "PATTERN")
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!2 = !{}
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!3 = !{!4}
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!4 = !MDCompositeType(tag: DW_TAG_structure_type, name: "vector", line: 21, size: 8, align: 8, file: !5, elements: !6, identifier: "_ZTS6vector")
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!5 = !MDFile(filename: "linezero.cc", directory: "PATTERN")
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!6 = !{!7, !13}
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!7 = !MDSubprogram(name: "begin", linkageName: "_ZN6vector5beginEv", line: 25, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 25, file: !5, scope: !"_ZTS6vector", type: !8)
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!8 = !MDSubroutineType(types: !9)
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!9 = !{!10, !12}
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!10 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11)
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!11 = !MDBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
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!12 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS6vector")
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!13 = !MDSubprogram(name: "end", linkageName: "_ZN6vector3endEv", line: 26, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 26, file: !5, scope: !"_ZTS6vector", type: !8)
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!14 = !{!15, !20}
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!15 = !MDSubprogram(name: "test", linkageName: "_Z4testv", line: 50, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 50, file: !5, scope: !16, type: !17, function: i32 ()* @_Z4testv, variables: !2)
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!16 = !MDFile(filename: "linezero.cc", directory: "PATTERN")
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!17 = !MDSubroutineType(types: !18)
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!18 = !{!19}
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!19 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!20 = !MDSubprogram(name: "f1", linkageName: "_Z2f1v", line: 54, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 54, file: !5, scope: !16, type: !21, function: void ()* @_Z2f1v, variables: !2)
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!21 = !MDSubroutineType(types: !22)
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!22 = !{null}
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!23 = !{i32 2, !"Dwarf Version", i32 4}
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!24 = !{i32 2, !"Debug Info Version", i32 3}
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!25 = !{!"PATTERN/linezero.o", !0}
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!26 = !{!"clang version 3.5.0 (trunk 209871)"}
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!27 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "__range", flags: DIFlagArtificial, scope: !28, type: !29)
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!28 = distinct !MDLexicalBlock(line: 51, column: 0, file: !5, scope: !15)
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!29 = !MDDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: !"_ZTS6vector")
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!30 = !MDLocation(line: 0, scope: !28)
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!31 = !MDLocation(line: 51, scope: !28)
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!32 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "__begin", flags: DIFlagArtificial, scope: !28, type: !10)
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!33 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "__end", flags: DIFlagArtificial, scope: !28, type: !10)
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!34 = !MDLocation(line: 51, scope: !35)
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!35 = distinct !MDLexicalBlock(line: 51, column: 0, file: !5, scope: !36)
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!36 = distinct !MDLexicalBlock(line: 51, column: 0, file: !5, scope: !28)
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!37 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "spec", line: 51, scope: !28, file: !16, type: !11)
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!38 = !MDLocation(line: 51, scope: !39)
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!39 = distinct !MDLexicalBlock(line: 51, column: 0, file: !5, scope: !28)
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!40 = !MDLocation(line: 51, scope: !41)
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!41 = distinct !MDLexicalBlock(line: 51, column: 0, file: !5, scope: !28)
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!42 = !MDLocation(line: 51, scope: !43)
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!43 = distinct !MDLexicalBlock(line: 51, column: 0, file: !5, scope: !28)
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!44 = !MDLocation(line: 52, scope: !15)
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!45 = !MDLocation(line: 54, scope: !20)
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