On Wednesday, May 4, 2016 5:41:37 PM PDT Kenneth Graunke wrote: > On Wednesday, May 4, 2016 3:54:14 PM PDT Matt Turner wrote: > > Ken suggested instead of a big and complicated optimization pass, to > > just recognize the operations here. It's certainly less code and a lot > > prettier, but it seems to actually perform worse for currently unknown > > reasons. > > One potential pitfall is that is_zero() currently returns false for > -0.0f. The fp64 series that's supposedly landing fixes this. >
That's fixed now. With get_nir_src_imm simplified, this series is: Reviewed-by: Kenneth Graunke <kenn...@whitecape.org> I'm not sure why the other one does better, but this is better than nothing, and it's really simple. We may as well land it...
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