From de914615753678c5514733a37ac7d0360a43e525 Mon Sep 17 00:00:00 2001 From: Connor Abbott Date: Mon, 31 Jul 2017 18:26:49 -0700 Subject: [PATCH] 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 --- src/compiler/nir/nir_opt_algebraic.py | 4 ++-- 1 file 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 -- 2.11.0