diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index 34eec399ef1..9817f477e32 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -1676,6 +1676,8 @@ optimizations.extend([
    (('~fmul', ('bcsel(is_used_once)', c, 1.0, -1.0), b), ('bcsel', c, b, ('fneg', b))),
    (('~fmulz', ('bcsel(is_used_once)', c, -1.0, 1.0), b), ('bcsel', c, ('fneg', b), b)),
    (('~fmulz', ('bcsel(is_used_once)', c, 1.0, -1.0), b), ('bcsel', c, b, ('fneg', b))),
+   (('fabs', ('bcsel(is_used_once)', b, ('fneg', a), a)), ('fabs', a)),
+   (('fabs', ('bcsel(is_used_once)', b, a, ('fneg', a))), ('fabs', a)),
    (('~bcsel', ('flt', a, 0.0), ('fneg', a), a), ('fabs', a)),
 
    (('bcsel', a, ('bcsel', b, c, d), d), ('bcsel', ('iand', a, b), c, d)),