Module: Mesa
Branch: master
Commit: e8b368ad1c4bdafc32505b722617b8ab19296fbe
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=e8b368ad1c4bdafc32505b722617b8ab19296fbe
Author: Timothy Arceri <tarc...@itsqueeze.com>
Date: Wed May 30 20:32:24 2018 +1000
nir: add unsigned comparison simplifications
This avoids loop unrolling regressions in Wolfenstein II on DXVK
with an upcoming optimisation series from Samuel.
Reviewed-by: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>
---
src/compiler/nir/nir_opt_algebraic.py | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/compiler/nir/nir_opt_algebraic.py
b/src/compiler/nir/nir_opt_algebraic.py
index 909ea3daf4..21b9acecbe 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -149,7 +149,9 @@ optimizations = [
(('~inot', ('feq', a, b)), ('fne', a, b)),
(('~inot', ('fne', a, b)), ('feq', a, b)),
(('inot', ('ilt', a, b)), ('ige', a, b)),
+ (('inot', ('ult', a, b)), ('uge', a, b)),
(('inot', ('ige', a, b)), ('ilt', a, b)),
+ (('inot', ('uge', a, b)), ('ult', a, b)),
(('inot', ('ieq', a, b)), ('ine', a, b)),
(('inot', ('ine', a, b)), ('ieq', a, b)),
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