[PATCH] [GraphWriter] Don't wait on xdg-open when not on Apple

[Charlie Turner]

> As we are on the topic: I think the current approach of having llvm                                                                                             

>  spawn the viewer and wait/not wait for it should be changed: I'd                                                                                                

>  really prefer llvm just writing a bunch of .dot files to the current                                                                                            

>  directory (or /tmp) giving them some sensible names+numbers and maybe                                                                                           

>  print those names.

> 

> This would avoid llvm having to find and launch the correct viewer. In                                                                                          

>  my experience I also often have cases where n graphs are generated but                                                                                          

>  I am only interested in one of them which forces me to close n-1 graph                                                                                          

>  viewers.


I suppose you mean the same thing as the -dot-* options to the `opt`
tool?  I agree that would be handy extension to `llc` for the
visualisation tools too.

Landed r241250 in meantime. Thank you for reviewing my patch!

Kind regards, Charlie.


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http://reviews.llvm.org/D10873

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