diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index a2d50e16ae9..4c4b4d6e37a 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -691,8 +691,8 @@ optimizations.extend([
    (('fneu', a, '#b(is_negative_zero)'), ('fneu', 0.0, a)),
    (('feq', '#b(is_negative_zero)', a), ('feq', a, 0.0)),
 
-   (('ieq', ('ineg', a), 0),  ('ieq', a, 0)),
-   (('ine', ('ineg', a), 0),  ('ine', a, 0)),
+   (('ieq', ('ineg', 'a(is_not_const)'), '#b'),  ('ieq', a, ('ineg', b))),
+   (('ine', ('ineg', 'a(is_not_const)'), '#b'),  ('ine', a, ('ineg', b))),
    (('ieq', ('iabs', a), 0),  ('ieq', a, 0)),
    (('ine', ('iabs', a), 0),  ('ine', a, 0)),
 
@@ -1454,8 +1454,6 @@ for s in [8, 16, 32, 64]:
    ])
 
 optimizations.extend([
-   (('ieq', ('ineg', ('b2i', 'a@1')), -1), a),
-   (('ine', ('ineg', ('b2i', 'a@1')), -1), ('inot', a)),
    (('ige', ('ineg', ('b2i', 'a@1')), 0), ('inot', a)),
    (('ilt', ('ineg', ('b2i', 'a@1')), 0), a),
    (('ult', 0, ('ineg', ('b2i', 'a@1'))), a),