[LLVMdev] size_t?

[Reid Kleckner]

This looks like some kind of bitness conflict. If you are building for
win64, are you sure clang is getting the -m64 argument?

I recall that you copied the win32 platform toolset xml files over by hand,
and I don't think they will have the correct flags. If you see this line in
the x64 toolset.props file, replace -m32 with -m64 and try again:
<AdditionalOptions>-m32 -fmsc-version=1700
%(AdditionalOptions)</AdditionalOptions>

In the meantime, I think Hans is trying to fix the installation of those
xml files and hopefully that will fix issues for other users going forwards.

On Tue, Sep 30, 2014 at 1:55 PM, Eric Mader <emader at gmx.us> wrote:

>  I'm getting compile errors because size_t is getting redefined. My
> "forced include file" starts with:
>
> #if BUILDING_FOR_WINDOWS
> #define NOMINMAX
>
> /* deal with the fact that windef.h also defines BOOL */
> #define BOOL WINBOOL
>
> #include <windows.h>
> #include <intrin.h>
>
> #undef BOOL
> #endif
>
> Looking at the preprocessor expansion of a typical .cpp file, I see that
> crtdefs.h defines size_t like this:
>
> typedef unisgned __int64 size_t;
>
> Later on, <LLVM>\lib\clang\3.6.0\includes\stddef.h defines it as:
>
> typedef unsigned int size_t;
>
> Is there some other magic I need to do to get these to work?
>
> I'm also seeing a bunch of errors like this having to do with intrinsics:
>
> 1>  In file included from C:\Program Files (x86)\Microsoft Visual Studio
> 12.0\VC\include\algorithm:6:
> 1>  In file included from C:\Program Files (x86)\Microsoft Visual Studio
> 12.0\VC\include\xmemory:6:
> 1>  In file included from C:\Program Files (x86)\Microsoft Visual Studio
> 12.0\VC\include\xmemory0:909:
> 1>  In file included from C:\Program Files
> (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\intrin.h:34:
> 1>  In file included from C:\Program Files
> (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\x86intrin.h:29:
> 1>  In file included from C:\Program Files
> (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\immintrin.h:28:
> 1>C:\Program Files
> (x86)\LLVM\msbuild-bin\..\lib\clang\3.6.0\include\mmintrin.h(52,40): error
> : cannot initialize a parameter of type '__attribute__((__vector_size__(2 *
> sizeof(int)))) int' (vector of 2 'int' values) with an rvalue of type
> '__v2si' (aka 'int')
> 1>      return __builtin_ia32_vec_ext_v2si((__v2si)__m, 0);
> 1>                                         ^~~~~~~~~~~
>
> I suspect that these might be caused by the same thing as the size_t
> problem...
>
> Regards,
> Eric Mader
>
>
>
>
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