diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index 1c553c4038b..444542076a7 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -1317,36 +1317,46 @@ optimizations.extend([
 
    (('iand@64', a, '#b(is_lower_half_zero)'),
     ('pack_64_2x32_split', 0,
-                           ('iand', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b)))),
+                           ('iand', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b))),
+     '!options->lower_pack_64_2x32_split'),
    (('iand@64', a, '#b(is_upper_half_zero)'),
     ('pack_64_2x32_split', ('iand', ('unpack_64_2x32_split_x', a), ('unpack_64_2x32_split_x', b)),
-                           0)),
+                           0),
+     '!options->lower_pack_64_2x32_split'),
    (('iand@64', a, '#b(is_lower_half_negative_one)'),
     ('pack_64_2x32_split', ('unpack_64_2x32_split_x', a),
-                           ('iand', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b)))),
+                           ('iand', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b))),
+     '!options->lower_pack_64_2x32_split'),
    (('iand@64', a, '#b(is_upper_half_negative_one)'),
     ('pack_64_2x32_split', ('iand', ('unpack_64_2x32_split_x', a), ('unpack_64_2x32_split_x', b)),
-                           ('unpack_64_2x32_split_y', a))),
+                           ('unpack_64_2x32_split_y', a)),
+     '!options->lower_pack_64_2x32_split'),
 
    (('ior@64', a, '#b(is_lower_half_zero)'),
     ('pack_64_2x32_split', ('unpack_64_2x32_split_x', a),
-                           ('ior', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b)))),
+                           ('ior', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b))),
+     '!options->lower_pack_64_2x32_split'),
    (('ior@64', a, '#b(is_upper_half_zero)'),
     ('pack_64_2x32_split', ('ior', ('unpack_64_2x32_split_x', a), ('unpack_64_2x32_split_x', b)),
-                           ('unpack_64_2x32_split_y', a))),
+                           ('unpack_64_2x32_split_y', a)),
+     '!options->lower_pack_64_2x32_split'),
    (('ior@64', a, '#b(is_lower_half_negative_one)'),
     ('pack_64_2x32_split', -1,
-                           ('ior', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b)))),
+                           ('ior', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b))),
+     '!options->lower_pack_64_2x32_split'),
    (('ior@64', a, '#b(is_upper_half_negative_one)'),
     ('pack_64_2x32_split', ('ior', ('unpack_64_2x32_split_x', a), ('unpack_64_2x32_split_x', b)),
-                           -1)),
+                           -1),
+     '!options->lower_pack_64_2x32_split'),
 
    (('ixor@64', a, '#b(is_lower_half_zero)'),
     ('pack_64_2x32_split', ('unpack_64_2x32_split_x', a),
-                           ('ixor', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b)))),
+                           ('ixor', ('unpack_64_2x32_split_y', a), ('unpack_64_2x32_split_y', b))),
+     '!options->lower_pack_64_2x32_split'),
    (('ixor@64', a, '#b(is_upper_half_zero)'),
     ('pack_64_2x32_split', ('ixor', ('unpack_64_2x32_split_x', a), ('unpack_64_2x32_split_x', b)),
-                           ('unpack_64_2x32_split_y', a))),
+                           ('unpack_64_2x32_split_y', a)),
+     '!options->lower_pack_64_2x32_split'),
 
    # DeMorgan's Laws
    (('iand', ('inot', a), ('inot', b)), ('inot', ('ior',  a, b))),