[LLVMbugs] [Bug 17034] New: [-cxx-abi microsoft] Mangle TemplateArgument::Declaration correctly for pointer to member function

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17034

            Bug ID: 17034
           Summary: [-cxx-abi microsoft] Mangle
                    TemplateArgument::Declaration correctly for pointer to
                    member function
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: david.majnemer at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

consider:
struct record {
  virtual int first();
  virtual int second();
};

struct omg : public record {
  virtual int third();
  virtual int fourth();
};

struct vrecord : virtual public record {
  virtual int third();
  virtual int fourth();
};

struct base1 {
  virtual int field1();
};
struct base2 {
  virtual int field2();
};

struct v2record : public base1, virtual public vrecord, public base2 {
  virtual int fun();
  virtual int fifth();
  virtual int sixth();
};

template <typename record, int (record::*thing)()>
void memptr() {}

template void memptr<omg, &omg::third>();
template void memptr<omg, &omg::fourth>();

template void memptr<v2record, &v2record::fifth>();
template void memptr<v2record, &v2record::sixth>();

the last instantiation is supposed to mangle to:
??$memptr at Uv2record@@$I??_9omg@@$BBI at AAA@A@@@YAXXZ

note how insane and baffling this mangling seems to be, it mentions the type
"omg" even though v2record has no relationship with it other than sharing a
base class.

further insanity results when instantiations #1 and #2 are not included, the
mangling changes!

it becomes:
??$memptr at Uv2record@@$I??_91@$BBI at AAA@A@@@YAXXZ

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20130829/a24c20d5/attachment.html>