diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index 55cb4a2a4a8..f35232a66ca 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -376,6 +376,9 @@ optimizations.extend([
    (('ffloor@16', a), ('fsub', a, ('ffract', a)), 'options->lower_ffloor'),
    (('ffloor@32', a), ('fsub', a, ('ffract', a)), 'options->lower_ffloor'),
    (('ffloor@64', a), ('fsub', a, ('ffract', a)), '(options->lower_ffloor || (options->lower_doubles_options & nir_lower_dfloor)) && !(options->lower_doubles_options & nir_lower_dfract)'),
+   (('fadd@16', a, ('fadd@16', b, ('fneg', ('ffract', a)))), ('fadd@16', b, ('ffloor', a)), '!options->lower_ffloor'),
+   (('fadd@32', a, ('fadd@32', b, ('fneg', ('ffract', a)))), ('fadd@32', b, ('ffloor', a)), '!options->lower_ffloor'),
+   (('fadd@64', a, ('fadd@64', b, ('fneg', ('ffract', a)))), ('fadd@64', b, ('ffloor', a)), '!options->lower_ffloor && !(options->lower_doubles_options & nir_lower_dfloor)'),
    (('fadd@16', a, ('fneg', ('ffract', a))), ('ffloor', a), '!options->lower_ffloor'),
    (('fadd@32', a, ('fneg', ('ffract', a))), ('ffloor', a), '!options->lower_ffloor'),
    (('fadd@64', a, ('fneg', ('ffract', a))), ('ffloor', a), '!options->lower_ffloor && !(options->lower_doubles_options & nir_lower_dfloor)'),