[RFC PATCH v3 32/78] target/m68k: 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/m68k/op_helper.c |  3 ++-
 target/m68k/translate.c | 10 +++++-----
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/target/m68k/op_helper.c b/target/m68k/op_helper.c
index 1ce850bbc5..65058b9e2f 100644
--- a/target/m68k/op_helper.c
+++ b/target/m68k/op_helper.c
@@ -418,7 +418,7 @@ static void m68k_interrupt_all(CPUM68KState *env, int is_hw)
             do_stack_frame(env, &sp, 1, oldsr, 0, env->pc);
             break;
         }
-        /* fall through */
+        fallthrough;
 
     default:
         do_stack_frame(env, &sp, 0, oldsr, 0, env->pc);
@@ -917,6 +917,7 @@ static struct bf_data bf_prep(uint32_t addr, int32_t ofs, 
uint32_t len)
             addr -= 1;
         }
         /* fallthru */
+        fallthrough;
     case 3:
         bofs += 32;
         break;
diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index 4d0110de95..ce102dc585 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -732,7 +732,7 @@ static TCGv gen_lea_mode(CPUM68KState *env, DisasContext *s,
         if (opsize == OS_UNSIZED) {
             return NULL_QREG;
         }
-        /* fallthru */
+        fallthrough;
     case 2: /* Indirect register */
         return get_areg(s, reg0);
     case 4: /* Indirect predecrememnt.  */
@@ -1221,7 +1221,7 @@ static void gen_cc_cond(DisasCompare *c, DisasContext *s, 
int cond)
             c->v1 = tmp = tcg_temp_new();
             tcg_gen_sub_i32(tmp, QREG_CC_N, QREG_CC_V);
             gen_ext(tmp, tmp, op - CC_OP_CMPB, 1);
-            /* fallthru */
+            fallthrough;
         case 12: /* GE */
         case 13: /* LT */
             tcond = TCG_COND_LT;
@@ -1260,7 +1260,7 @@ static void gen_cc_cond(DisasCompare *c, DisasContext *s, 
int cond)
         if (op != CC_OP_LOGIC) {
             break;
         }
-        /* fallthru */
+        fallthrough;
     case 10: /* PL (!N) */
     case 11: /* MI (N) */
         /* Several cases represent N normally.  */
@@ -1292,7 +1292,7 @@ static void gen_cc_cond(DisasCompare *c, DisasContext *s, 
int cond)
             c->v1 = QREG_CC_X;
             goto done;
         }
-        /* fallthru */
+        fallthrough;
     case 8: /* VC (!V) */
     case 9: /* VS (V) */
         /* Logic operations clear V and C.  */
@@ -4234,7 +4234,7 @@ DISAS_INSN(chk)
             opsize = OS_LONG;
             break;
         }
-        /* fallthru */
+        fallthrough;
     default:
         gen_exception(s, s->base.pc_next, EXCP_ILLEGAL);
         return;
-- 
2.39.2