[LLVMdev] Visual Studio 2012 cl.exe ICE while building LLVM for x64 (in TableGen) at -O2

[Gordon Keiser]

Reviving the ancient post, but MS has fixed the ICE in VS2012 Update 2 :

Under C++ Fixes:
	* An internal compiler error occurs when you buiuld[sic] an LLVM-based project by using an x64-based compiler.

I haven't verified personally yet but since they had a full repro I'm going to trust them on that one...  :-)

Cheers,
Gordon Keiser
Software Development Engineer
Arxan Technologies
gkeiser at arxan.com  www.arxan.com 
Protecting the App Economy(tm)  

> -----Original Message-----
> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu]
> On Behalf Of Gordon Keiser
> Sent: Tuesday, December 04, 2012 6:18 PM
> To: nick at indigorenderer.com; llvmdev at cs.uiuc.edu
> Subject: Re: [LLVMdev] Visual Studio 2012 cl.exe ICE while building LLVM for
> x64 (in TableGen) at -O2
> 
> > On Behalf Of Nicholas Chapman
> >
> > On 04/12/2012 06:29, Michael Spencer wrote:
> > > On Mon, Dec 3, 2012 at 8:08 PM, Gordon Keiser <gkeiser at arxan.com>
> > wrote:
> > >> As an update to this:
> > >> http://connect.microsoft.com/VisualStudio/feedback/details/769222/c
> > >> l-
> > >> exe-ice-when-building-llvm-trunk-at-o2
> > >>
> > >> Microsoft has reproduced the ICE, given a workaround, and is
> > >> planning a
> > fix for a future MSVC release.   I know not a lot of people are building with
> > VS, but it's nice to know.  The workaround involves marking a single
> > function with attribute((noinline)) and is detailed on the page,  so
> > nothing too horrible there.
> > > I'm guessing this was specific to the arm backend. As quite a few
> > > people are building with MSVC daily.
> > >
> > >
> > No, it happens targeting x64, and maybe x86 as well.
> >
> >      Nick C.
> 
> Right, it's specific to Visual Studio 2012, the crash happens in two tablegen
> files when inlining utostr.   I've not run into it building with 2010 or 2008.   It's
> rather odd that utostr_32 doesn't cause the same issue since they share
> nearly identical code.
> 
> Gordon Keiser
> Software Development Engineer
> Arxan Technologies
> Protecting the App EconomyT
> 
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> 
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev