diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index 414d1291276..1a782bc9d23 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -276,6 +276,11 @@ optimizations = [
     ('ffmaz', a, b, c), 'options->has_fmulz && !'+signed_zero_inf_nan_preserve_32),
    (('ffma@32', a, ('bcsel', ignore_exact('feq', a, 0.0), 0.0, '#b(is_not_const_zero)'), c),
     ('ffmaz', a, b, c), 'options->has_fmulz && !'+signed_zero_inf_nan_preserve_32),
+
+   # b == 0.0 ? 1.0 : fexp2(fmul(a, b)) -> fexp2(fmulz(a, b))
+   (('bcsel', ignore_exact('feq', b, 0.0), 1.0, ('fexp2', ('fmul@32', a, b))),
+    ('fexp2', ('fmulz', a, b)),
+    'options->has_fmulz && !'+signed_zero_inf_nan_preserve_32),
 ]
 
 # Shorthand for the expansion of just the dot product part of the [iu]dp4a