diff --git a/compiler/globtype.pas b/compiler/globtype.pas
index 780da9b6aa..f883227ca1 100644
--- a/compiler/globtype.pas
+++ b/compiler/globtype.pas
@@ -392,7 +392,7 @@ interface
        { switches being applied to all CPUs at the given level }
        genericlevel1optimizerswitches = [cs_opt_level1,cs_opt_peephole];
        genericlevel2optimizerswitches = [cs_opt_level2,cs_opt_remove_emtpy_proc];
-       genericlevel3optimizerswitches = [cs_opt_level3,cs_opt_constant_propagate,cs_opt_nodedfa,cs_opt_use_load_modify_store,cs_opt_loopunroll];
+       genericlevel3optimizerswitches = [cs_opt_level3,cs_opt_constant_propagate,cs_opt_nodedfa{$ifndef llvm},cs_opt_use_load_modify_store{$endif},cs_opt_loopunroll];
        genericlevel4optimizerswitches = [cs_opt_level4,cs_opt_reorder_fields,cs_opt_dead_values,cs_opt_fastmath];
 
        { whole program optimizations whose information generation requires