[LLVMdev] Compiling LLVM 2.7 with Visual Studio 2010.

[Tom van Dijck]

Hey,

So I tried to fix these errors, and have everything compiling now... not too
difficult, just annoying.

error C2248: 'llvm::EquivalenceClasses<
>
> ElemTy>::ECValue::ECValue' : cannot access private member declared in class
> 'llvm::EquivalenceClasses<ElemTy>::ECValue'    C:\Program Files
> (x86)\Microsoft Visual Studio 10.0\VC\include\xmemory    208


I moved:

    // ECValue ctor - Start out with EndOfList pointing to this node, Next
is Null, isLeader = true.
    ECValue(const ElemTy &Elt)
      : Leader(this), Next((ECValue*)(intptr_t)1), Data(Elt) {}

into the public section of the ECValue class, seemed to solve that one..

------

the cast errors from below... pretty weird, but the Microsofts compiler
seems to not like passing in 0 as a pointer into the pair<> template if that
argument is in reality a pointer. seems weird since if (bla == 0) works
fine, but pair<int, void*>(0,0); does not, anyway, the fix was to just cast
that 0... so pair<int, void*>(0, (void*)0);

------

Last there is a gazillion errors around the fact that Microsoft for some
crazy stupid reason has defined setjmp to _setjmp, and thus the generated
intrinsics.gen goes completely insane everywhere. I'm sure this is a legacy
thing in visual studios libraries, but wow...

Anyway, my solution to this was to make a 'intrinsics.gen.proxy', which
undefs that macro and then includes the intrinsics.gen, and then all
includes to intrinsics.gen, I modified to include the proxy. This guarantees
that at least the Instrinsic namespace is always setup correctly... and
you're left with a couple other files where it still seems to be defined, so
I just undef'ed it for the whole file in those files as well...

Is there any interest in these changes applied to trunk? and if so how do I
proceed... I'm fine keeping these changes local and integrate, but I figure
there is more users out there wanting to move to VS2010 at some point.

Tom.


On Sat, May 1, 2010 at 7:59 PM, Tom van Dijck <llvm at tomvandijck.com> wrote:

> Hey,
>
> Downloaded the release, used CMake to create solution... building mostly
> seems to be OK, except for a couple of compiler errors.
>
>
> warning C4090: 'function' : different 'const' qualifiers
> d:\companyone\external\llvm\source\llvm-2.7\lib\support\regengine.inc    188
> error C2248: 'llvm::EquivalenceClasses<ElemTy>::ECValue::ECValue' : cannot
> access private member declared in class
> 'llvm::EquivalenceClasses<ElemTy>::ECValue'    C:\Program Files
> (x86)\Microsoft Visual Studio 10.0\VC\include\xmemory    208
> error C2668: 'llvm::next' : ambiguous call to overloaded function
> D:\CompanyOne\External\LLVM\source\llvm-2.7\lib\Transforms\Scalar\LoopStrengthReduce.cpp
> 2820
> error C2440: 'initializing' : cannot convert from 'int' to 'const
> llvm::TargetRegisterClass *'    C:\Program Files (x86)\Microsoft Visual
> Studio 10.0\VC\include\utility    163
> error C2439: 'std::_Pair_base<_Ty1,_Ty2>::second' : member could not be
> initialized    C:\Program Files (x86)\Microsoft Visual Studio
> 10.0\VC\include\utility    163
>
> it totals to 15 build errors and 2 warnings, but most of them are repeats
> of the above 5..
> Are these known issues? Or did I fail to set some setting?
>
> 3 of the errors come from usage of templates, hence the file names end up
> somewhere in the VS SDK, I can provide more details if required though..
>
> Tom.
>
>
>
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