[RFC PATCH 28/78] target/avr: add fallthrough pseudo-keyword

[Emmanouil Pitsidianakis]

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/avr/translate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/avr/translate.c b/target/avr/translate.c
index cdffa04519..2043677745 100644
--- a/target/avr/translate.c
+++ b/target/avr/translate.c
@@ -2753,37 +2753,37 @@ static void avr_tr_translate_insn(DisasContextBase 
*dcbase, CPUState *cs)
 static void avr_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
 {
     DisasContext *ctx = container_of(dcbase, DisasContext, base);
     bool nonconst_skip = canonicalize_skip(ctx);
     /*
      * Because we disable interrupts while env->skip is set,
      * we must return to the main loop to re-evaluate afterward.
      */
     bool force_exit = ctx->base.tb->flags & TB_FLAGS_SKIP;
 
     switch (ctx->base.is_jmp) {
     case DISAS_NORETURN:
         assert(!nonconst_skip);
         break;
     case DISAS_NEXT:
     case DISAS_TOO_MANY:
     case DISAS_CHAIN:
         if (!nonconst_skip && !force_exit) {
             /* Note gen_goto_tb checks singlestep.  */
             gen_goto_tb(ctx, 1, ctx->npc);
             break;
         }
         tcg_gen_movi_tl(cpu_pc, ctx->npc);
-        /* fall through */
+        fallthrough;
     case DISAS_LOOKUP:
         if (!force_exit) {
             tcg_gen_lookup_and_goto_ptr();
             break;
         }
-        /* fall through */
+        fallthrough;
     case DISAS_EXIT:
         tcg_gen_exit_tb(NULL, 0);
         break;
     default:
         g_assert_not_reached();
     }
 }
-- 
2.39.2