sim: avr: fix -Wimplicit-fallthrough warnings

Replace some fall through comments with the attribute.

diff --git a/sim/avr/interp.c b/sim/avr/interp.c
index eef4ad9..377398e 100644 (file)
--- a/sim/avr/interp.c
+++ b/sim/avr/interp.c
@@ -896,7 +896,7 @@ step_once (SIM_CPU *cpu)
 
       case OP_reti:
        sram[SREG] |= SREG_I;
-       /* Fall through */
+       ATTRIBUTE_FALLTHROUGH;
       case OP_ret:
        {
          const struct avr_sim_state *state = AVR_SIM_STATE (CPU_STATE (cpu));