[cfe-dev] Failing test SemaCXX/underlying_type.cpp on Mingw/Msys

[Matthieu Monrocq]

Hello,

SemaCXX/underlying_type.cpp fails on Mingw/Msys with the following message:

  Assertion failed: (PtrVal & ((1 << PtrTraits::NumLowBitsAvailable)-1)) ==
0 && "Pointer is not sufficiently aligned", file
d:/clang/llvm/include/llvm/ADT/PointerIntPair.h, line 80

>From this function:

  void setPointer(PointerTy Ptr) {
    intptr_t PtrVal
      = reinterpret_cast<intptr_t>(PtrTraits::getAsVoidPointer(Ptr));
    assert((PtrVal & ((1 << PtrTraits::NumLowBitsAvailable)-1)) == 0 &&
           "Pointer is not sufficiently aligned");
    // Preserve all low bits, just update the pointer.
    Value = PtrVal | (Value & ~PointerBitMask);
  }

I don't know whether the problem only occurs on mingw/msys or also occurs on
a "bare" windows system.

-- Matthieu.
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