| 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 19:19:20 +0200
- Cc: Gael Guennebaud <gael.guennebaud@xxxxxxxxx>
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Ok, once again. Since Ilya mentioned that CMake does create projects
which have defaults set to "no whole program optimization" I needed to
start digging again because it implies, that our unit tests should
have captured this!
So, we see a regression and that is happening since
changeset: 3260:431547872cf7
user: Gael Guennebaud <g.gael@xxxxxxx>
date: Mon Jul 12 16:31:46 2010 +0200
summary: matrix product: move the alpha factor to gebp instead of
the packing
Since here, we are hitting a compiler bug and considering that
everybody using CMake will run into it, it is definitely a show
stopper for 3.0.
I have still no idea for workarounds and just did not myself hit this
bug earlier because I am working with 64bit builds only.
- Hauke