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254 commits

Author SHA1 Message Date
Erik Faye-Lund
beb6639a9d Revert "nir: drop unused alpha_ref_float" 
This reverts commit e8095f2af0.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Jose Maria Casanova <jmcasanova@igalia.com>
 2019-10-23 13:03:38 +02:00
Erik Faye-Lund
e8095f2af0 nir: drop unused alpha_ref_float 
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
 2019-10-17 10:41:36 +02:00
Jason Ekstrand
951cf94521 nir: Add explicit signs to image min/max intrinsics 
This better matches all the other atomic intrinsics such as those for
SSBOs and shared variables where the sign is part of the intrinsic
opcode.  Both generators (GLSL and SPIR-V) know the sign from the type
of the image variable or handle.  In SPIR-V, signed min/max are separate
opcodes from unsigned.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
 2019-08-21 17:19:55 +00:00
Daniel Schürmann
df86c5ffb3 nir: add divergence analysis pass. 
This pass expects the shader to be in LCSSA form.
The algorithm is based on 'The Simple Divergence Analysis' from
Diogo Sampaio, Rafael De Souza, Sylvain Collange, Fernando Magno Quintão Pereira.
Divergence Analysis. ACM Transactions on Programming Languages and Systems (TOPLAS)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
 2019-08-20 17:40:13 +02:00