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authorJason Ekstrand <[email protected]>2016-03-23 14:30:29 -0700
committerJason Ekstrand <[email protected]>2016-03-23 16:28:00 -0700
commited3a029e8088cb17af073c3b5f7444cb7e2f1cfb (patch)
tree0328c5f8ef7594bcd4c955ad6e9975d93df2ef91 /src/compiler/nir/nir_opt_algebraic.py
parent89545b13141053cf12a10e5357aa82031e8419ed (diff)
nir/algebraic: Fix fmin detection to match the spec
The previous transformation got the arguments to fmin backwards. When NaNs are involved, the GLSL min/max aren't commutative so it matters. Reviewed-by: Francisco Jerez <[email protected]>
Diffstat (limited to 'src/compiler/nir/nir_opt_algebraic.py')
-rw-r--r--src/compiler/nir/nir_opt_algebraic.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index ec6c6338bb1..7e3aa5aa798 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -122,7 +122,7 @@ optimizations = [
(('flt', 0.0, ('fabs', a)), ('fne', a, 0.0)),
(('fge', ('fneg', ('fabs', a)), 0.0), ('feq', a, 0.0)),
- (('bcsel', ('flt', a, b), a, b), ('fmin', a, b)),
+ (('bcsel', ('flt', b, a), b, a), ('fmin', a, b)),
(('bcsel', ('flt', a, b), b, a), ('fmax', a, b)),
(('bcsel', ('inot', 'a@bool'), b, c), ('bcsel', a, c, b)),
(('bcsel', a, ('bcsel', a, b, c), d), ('bcsel', a, b, d)),