fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-04 22:49:13 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

nir: Recognize a pattern for doing b2f without the opcode.

Browse source 
Since we have patterns based on b2f, generate them if we see the b2f
equivalent using an iand.  This is common when generating NIR from TGSI.

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Eric Anholt 2015-03-29 22:59:39 -07:00
parent 26261bca21
commit 6e8d4a2f80
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/glsl/nir/nir_opt_algebraic.py
View file

@ -99,6 +99,7 @@ optimizations = [
# Emulating booleans
(('fmul', ('b2f', a), ('b2f', b)), ('b2f', ('iand', a, b))),
(('fsat', ('fadd', ('b2f', a), ('b2f', b))), ('b2f', ('ior', a, b))),
(('iand', 'a@bool', 1.0), ('b2f', a)),
# Comparison with the same args. Note that these are not done for
# the float versions because NaN always returns false on float
# inequalities.