[RFC PATCH 29/78] target/cris: 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/cris/translate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/cris/translate.c b/target/cris/translate.c
index b3974ba0bb..bdd128db23 100644
--- a/target/cris/translate.c
+++ b/target/cris/translate.c
@@ -3061,94 +3061,94 @@ static void cris_tr_translate_insn(DisasContextBase 
*dcbase, CPUState *cs)
 static void cris_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu)
 {
     DisasContext *dc = container_of(dcbase, DisasContext, base);
     DisasJumpType is_jmp = dc->base.is_jmp;
     target_ulong npc = dc->pc;
 
     if (is_jmp == DISAS_NORETURN) {
         /* If we have a broken branch+delayslot sequence, it's too late. */
         assert(dc->delayed_branch != 1);
         return;
     }
 
     if (dc->clear_locked_irq) {
         t_gen_movi_env_TN(locked_irq, 0);
     }
 
     /* Broken branch+delayslot sequence.  */
     if (dc->delayed_branch == 1) {
         /* Set env->dslot to the size of the branch insn.  */
         t_gen_movi_env_TN(dslot, dc->pc - dc->ppc);
         cris_store_direct_jmp(dc);
     }
 
     cris_evaluate_flags(dc);
 
     /* Evaluate delayed branch destination and fold to another is_jmp case. */
     if (is_jmp == DISAS_DBRANCH) {
         if (dc->base.tb->flags & 7) {
             t_gen_movi_env_TN(dslot, 0);
         }
 
         switch (dc->jmp) {
         case JMP_DIRECT:
             npc = dc->jmp_pc;
             is_jmp = dc->cpustate_changed ? DISAS_UPDATE_NEXT : DISAS_TOO_MANY;
             break;
 
         case JMP_DIRECT_CC:
             /*
              * Use a conditional branch if either taken or not-taken path
              * can use goto_tb.  If neither can, then treat it as indirect.
              */
             if (likely(!dc->cpustate_changed)
                 && (use_goto_tb(dc, dc->jmp_pc) || use_goto_tb(dc, npc))) {
                 TCGLabel *not_taken = gen_new_label();
 
                 tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, not_taken);
                 gen_goto_tb(dc, 1, dc->jmp_pc);
                 gen_set_label(not_taken);
 
                 /* not-taken case handled below. */
                 is_jmp = DISAS_TOO_MANY;
                 break;
             }
             tcg_gen_movi_tl(env_btarget, dc->jmp_pc);
-            /* fall through */
+            fallthrough;
 
         case JMP_INDIRECT:
             tcg_gen_movcond_tl(TCG_COND_NE, env_pc,
                                env_btaken, tcg_constant_tl(0),
                                env_btarget, tcg_constant_tl(npc));
             is_jmp = dc->cpustate_changed ? DISAS_UPDATE : DISAS_JUMP;
 
             /*
              * We have now consumed btaken and btarget.  Hint to the
              * tcg compiler that the writeback to env may be dropped.
              */
             tcg_gen_discard_tl(env_btaken);
             tcg_gen_discard_tl(env_btarget);
             break;
 
         default:
             g_assert_not_reached();
         }
     }
 
     switch (is_jmp) {
     case DISAS_TOO_MANY:
         gen_goto_tb(dc, 0, npc);
         break;
     case DISAS_UPDATE_NEXT:
         tcg_gen_movi_tl(env_pc, npc);
-        /* fall through */
+        fallthrough;
     case DISAS_JUMP:
         tcg_gen_lookup_and_goto_ptr();
         break;
     case DISAS_UPDATE:
         /* Indicate that interrupts must be re-evaluated before the next TB. */
         tcg_gen_exit_tb(NULL, 0);
         break;
     default:
         g_assert_not_reached();
     }
 }
-- 
2.39.2