In preparation of raising -Wimplicit-fallthrough to 5, replace all
fall-through comments with the fallthrough attribute pseudo-keyword.

Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
---
 target/rx/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/rx/translate.c b/target/rx/translate.c
index f8860830ae..b00c0a21fb 100644
--- a/target/rx/translate.c
+++ b/target/rx/translate.c
@@ -2232,24 +2232,24 @@ static void rx_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
 static void rx_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
 {
     DisasContext *ctx = container_of(dcbase, DisasContext, base);
 
     switch (ctx->base.is_jmp) {
     case DISAS_NEXT:
     case DISAS_TOO_MANY:
         gen_goto_tb(ctx, 0, dcbase->pc_next);
         break;
     case DISAS_JUMP:
         tcg_gen_lookup_and_goto_ptr();
         break;
     case DISAS_UPDATE:
         tcg_gen_movi_i32(cpu_pc, ctx->base.pc_next);
-        /* fall through */
+        fallthrough;
     case DISAS_EXIT:
         tcg_gen_exit_tb(NULL, 0);
         break;
     case DISAS_NORETURN:
         break;
     default:
         g_assert_not_reached();
     }
 }
-- 
2.39.2