[llvm-bugs] [Bug 34186] New: Assertion: llvm::DwarfUnit::addType(llvm::DIE&, const llvm::DIType*, llvm::dwarf::Attribute): Assertion `Ty && "Trying to add a type that doesn't exist?

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Aug 14 11:13:25 PDT 2017


https://bugs.llvm.org/show_bug.cgi?id=34186

            Bug ID: 34186
           Summary: Assertion: llvm::DwarfUnit::addType(llvm::DIE&, const
                    llvm::DIType*, llvm::dwarf::Attribute): Assertion `Ty
                    && "Trying to add a type that doesn't exist?
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: davide at freebsd.org
                CC: aprantl at apple.com, dblaikie at gmail.com,
                    llvm-bugs at lists.llvm.org, rnk at google.com

$ ./llc red.ll
llc: ../lib/CodeGen/AsmPrinter/DwarfUnit.cpp:764: void
llvm::DwarfUnit::addType(llvm::DIE&, const llvm::DIType*,
llvm::dwarf::Attribute): Assertion `Ty && "Trying to add a type that doesn't
exist?"' failed.

$ cat blah.ll

!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!63, !64}
!1 = distinct !DIGlobalVariable(name: "pat", scope: !2, file: !3, line: 27,
isLocal: true, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "",
emissionKind: FullDebug, globals: !5)
!3 = !DIFile(filename: "patatino.c", directory: "/")
!5 = !{!6}
!6 = !DIGlobalVariableExpression(var: !1)
!63 = !{i32 2, !"Dwarf Version", i32 4}
!64 = !{i32 2, !"Debug Info Version", i32 3}


This should probably be rejected in the verifier. I'll work on a patch for
this.

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