[LLVMbugs] [Bug 13231] New: [Windows] Can't mangle vftable properly

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13231

             Bug #: 13231
           Summary: [Windows] Can't mangle vftable properly
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: timurrrr at google.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified


$ cat source.cpp
class Base {
 public:
  virtual ~Base();
};

class Child: public Base { };

int main() {
  Child obj;
}

As of r159296,
$ clang++ -Xclang -cxx-abi -Xclang microsoft source.cpp
source-655362.o : error LNK2019: unresolved external symbol "const
Child::`vftable'" (??_7Child@@6B@) referenced in function "public: __thiscall
Child::Child(void)" (??0Child@@QAE at XZ)
source-655362.o : error LNK2019: unresolved external symbol "public: virtual
__thiscall Base::~Base(void)" (??1Base@@UAE at XZ) referenced in function "public:
virtual __thiscall Child::~Child(void)" (??1Child@@UAE at XZ)
source-655362.o : error LNK2019: unresolved external symbol "const
Base::`vftable'" (??_7Base@@6B@) referenced in function "public: __thiscall
Base::Base(void)" (??0Base@@QAE at XZ)
a.out : fatal error LNK1120: 3 unresolved externals
clang++: error: linker command failed with exit code 1120 (use -v to see
invocation)

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