gtbercea added inline comments.

================
Comment at: lib/Driver/ToolChains/Cuda.h:90
-  }
 };
 
----------------
gtbercea wrote:
> tra wrote:
> > gtbercea wrote:
> > > gtbercea wrote:
> > > > I would also like to keep the spirit of this code if not in this exact 
> > > > form at least something that performs the same functionality.
> > > @tra what's your opinion on this code? Should this stay, stay but 
> > > modified to be more robust or taken out completely?
> > There are currently no users for this. In general, I would rather not have 
> > magically-changing default GPU based on how broken your CUDA installation 
> > is. IMO it would be better to keep defaults static and fail if 
> > prerequisites are not met.
> I would have thought that it is up to the compiler to select, as default, the 
> lowest viable compute capability. This is what this code aims to do (whether 
> it actually does that's a separate issue :) ).
> 
The reason I added this code in the first place was to overcome the fact that 
something like a default of sm_30 may work on the K40 but once you go to newer 
Pascal, Volta GPUs then you need a new minimum compute capability that is 
supported.


https://reviews.llvm.org/D38883



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