dotnet/corert

Made some small progress embedding LLVM in clrjit, but now.... This code is causing a problem https://github.com/llvm/llvm-project/blob/183bbad1d78a4bf445ec4db1ce01673f6a7feb37/llvm/include/llvm/ADT/APFloat.h#L624-L630 :

  DoubleAPFloat &operator=(DoubleAPFloat &&RHS) {
    if (this != &RHS) {
      this->~DoubleAPFloat();
      new (this) DoubleAPFloat((std::move)(RHS));
    }
    return *this;
  }

From my understanding its a bit of c++ black magic to create a new object over the top of the existing one new (this)..... The error however with msbuild /v:normal is

1>    E:\GitHub\llvm-project\llvm\include\llvm\ADT\APFloat.h(624,1): error C2665: 'operator new': none of the 10 overloads could convert all the argument types
1>    C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.28.29333\include\vcruntime_new.h(53,17): message : could be 'void *operator new(size_t,const std::nothrow_t &) noexcept'
1>    E:\GitHub\runtimelab\src\coreclr\jit\alloc.h(253,22): message : or       'void *operator new(size_t,CompAllocator)'
1>    E:\GitHub\runtimelab\src\coreclr\jit\hostallocator.h(45,22): message : or       'void *operator new(size_t,HostAllocator)'
1>    E:\GitHub\runtimelab\src\coreclr\inc\utilcode.h(4667,16): message : or       'void *operator new(size_t,const CExecutable &)'
1>    E:\GitHub\runtimelab\src\coreclr\inc\new.hpp(19,16): message : or       'void *operator new(size_t,const NoThrow &) noexcept'
1>    E:\GitHub\llvm-project\llvm\include\llvm\ADT\APFloat.h(624,1): message : while trying to match the argument list '(unsigned __int64, llvm::detail::DoubleAPFloat *)'

so is clr redefining the new operator so that this kind of new with placement syntax is not going to work?