(In reply to Pierre-Eric Pelloux-Prayer from comment #1)
> Should be fixed on master by
> https://gitlab.freedesktop.org/mesa/mesa/commit/
> 4583f09caa5aef719a1eec282f24a86c789cbba6.
> 
> Can you test and confirm?

Hello Pierre-Eric,

I can confirm with Polaris 20 (RX580) running Unigine_Heaven-4.0 with

SOURCE/Unigine_Heaven-4.0> echo $AMD_DEBUG 
sisched,nir,forcedma
SOURCE/Unigine_Heaven-4.0> echo $R600_DEBUG 
sisched,nir,forcedma

sigfaulted for me before, too.
Could be closed after Dimitar confirmed, too.

BTW Are you one of the 'new' AMD OSS guys?