[LLVMbugs] [Bug 15900] New: [-cxx-abi microsoft] Incorrect mangling for member pointer globals

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu May 2 10:31:45 PDT 2013


            Bug ID: 15900
           Summary: [-cxx-abi microsoft] Incorrect mangling for member
                    pointer globals
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: reid.kleckner at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Clang and MSVC mangle this differently:

  struct B;
  int B::*memptr;

msvc:  ?memptr@@3PQB@@HQ1@
clang: ?memptr@@3PQB@@HA

It looks like it has to do with how we mangle qualifiers.  See the IsMember arg
to mangleQualifiers, which seems to exist for the sole purpose of changing
these codes for member pointers.

Maybe that should only kick in when a memptr type is used in a template or
argument context.

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