diff --git a/compiler/arm/rgcpu.pas b/compiler/arm/rgcpu.pas
index d3312fabe5..031563e95d 100644
--- a/compiler/arm/rgcpu.pas
+++ b/compiler/arm/rgcpu.pas
@@ -493,9 +493,12 @@ unit rgcpu;
               A_SMULL,
               A_SMLAL:
                 begin
-                  add_edge(getsupreg(taicpu(p).oper[0]^.reg),getsupreg(taicpu(p).oper[1]^.reg));
-                  add_edge(getsupreg(taicpu(p).oper[1]^.reg),getsupreg(taicpu(p).oper[2]^.reg));
-                  add_edge(getsupreg(taicpu(p).oper[0]^.reg),getsupreg(taicpu(p).oper[2]^.reg));
+                  if current_settings.cputype<cpu_armv6 then
+                    begin
+                      add_edge(getsupreg(taicpu(p).oper[0]^.reg),getsupreg(taicpu(p).oper[1]^.reg));
+                      add_edge(getsupreg(taicpu(p).oper[1]^.reg),getsupreg(taicpu(p).oper[2]^.reg));
+                      add_edge(getsupreg(taicpu(p).oper[0]^.reg),getsupreg(taicpu(p).oper[2]^.reg));
+                    end;
                 end;
               A_LDRB,
               A_STRB,