| Re: [eigen] Matrix product crashes when compiled with MSVC 2010 in release |
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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] Matrix product crashes when compiled with MSVC 2010 in release
- From: Hauke Heibel <hauke.heibel@xxxxxxxxxxxxxx>
- Date: Fri, 13 Aug 2010 17:53:23 +0200
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Guys,
no idea how to write volatile inline assembly on MSVC. Normal inline
assembly did not help - it helps if I set that function to "don't
inline" but that will kill the run-time and I assume any other patch
will kill the run-time too. I am clueless for the moment.
- Hauke
On Fri, Aug 13, 2010 at 4:16 PM, Ilya Baran <baran37@xxxxxxxxx> wrote:
> Hello,
>
> The reason I ran into this is that CMake creates projects without
> whole program optimization by default. I can, of course, live with
> enabling whole program optimization--the problem is that the entire
> code has to be reoptimized when a single cpp file changes (this is
> slow even for a moderate-sized project). I think it makes sense to
> spend a little effort on working around this (the asm idea seems
> promising) because other people will hit it, but I agree that it's not
> a good idea to introduce a runtime performance regression for this.
>
> Thanks,
>
> -Ilya
>
>>> Just a short question to you Ilya - do you rely on disabling the whole
>>> program optimization? Per default it is enabled if you create a new
>>> solution. That's why we never hit that issue so far. I am saying for
>>> all our unit tests, the compiler settings are mostly on default for
>>> MSVC builds. Testing against all combinations of compiler settings is
>>> not really possible. ;)
>>
>> Spot on!
>> Even if the people at everyone's favorite corporation are not very
>> responsive to bug reports, I would still say it's about the only thing
>> to do about it, unless Hauke finds an applicable work-around!
>
>
>