diff options
| author | Connor Abbott <cwabbott0@gmail.com> | 2017-07-31 18:26:49 -0700 |
|---|---|---|
| committer | Emil Velikov <emil.l.velikov@gmail.com> | 2017-08-05 00:09:25 +0100 |
| commit | a90d99f7a5f091c2f5697dd7b11d9803f369aa3a (patch) | |
| tree | 3127e44c551186e6a8a826da4c29ddf52023a938 | |
| parent | 6806773905e0a3654ebd0d2a963a706bb70f0a64 (diff) | |
nir: fix algebraic optimizations
The optimizations are only valid for 32-bit integers. They were
mistakenly firing for 64-bit integers as well.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Matt Turner <mattst88@gmail.com>
(cherry picked from commit de914615753678c5514733a37ac7d0360a43e525)
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index df5854270c4..ad75228a50f 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -250,8 +250,8 @@ optimizations = [ (('ishr', a, 0), a), (('ushr', 0, a), 0), (('ushr', a, 0), a), - (('iand', 0xff, ('ushr', a, 24)), ('ushr', a, 24)), - (('iand', 0xffff, ('ushr', a, 16)), ('ushr', a, 16)), + (('iand', 0xff, ('ushr@32', a, 24)), ('ushr', a, 24)), + (('iand', 0xffff, ('ushr@32', a, 16)), ('ushr', a, 16)), # Exponential/logarithmic identities (('~fexp2', ('flog2', a)), a), # 2^lg2(a) = a (('~flog2', ('fexp2', a)), a), # lg2(2^a) = a |