[RFC PATCH v3 27/78] target/riscv: 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.pitsidiana...@linaro.org>
---
 target/riscv/insn_trans/trans_rvi.c.inc   |  2 +-
 target/riscv/insn_trans/trans_rvzce.c.inc | 22 +++++++++++-----------
 target/riscv/translate.c                  |  4 ++--
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/target/riscv/insn_trans/trans_rvi.c.inc 
b/target/riscv/insn_trans/trans_rvi.c.inc
index 25cb60558a..98dd2e3cf6 100644
--- a/target/riscv/insn_trans/trans_rvi.c.inc
+++ b/target/riscv/insn_trans/trans_rvi.c.inc
@@ -122,7 +122,7 @@ static TCGCond gen_compare_i128(bool bz, TCGv rl,
 
     case TCG_COND_LTU:
         invert = true;
-        /* fallthrough */
+        fallthrough;
     case TCG_COND_GEU:
         {
             TCGv tmp = tcg_temp_new();
diff --git a/target/riscv/insn_trans/trans_rvzce.c.inc 
b/target/riscv/insn_trans/trans_rvzce.c.inc
index 2d992e14c4..f0bcbb4f72 100644
--- a/target/riscv/insn_trans/trans_rvzce.c.inc
+++ b/target/riscv/insn_trans/trans_rvzce.c.inc
@@ -125,37 +125,37 @@ static uint32_t decode_push_pop_list(DisasContext *ctx, 
target_ulong rlist)
     case 15:
         reg_bitmap |=  1 << (X_Sn + 11) ;
         reg_bitmap |=  1 << (X_Sn + 10) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 14:
         reg_bitmap |=  1 << (X_Sn + 9) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 13:
         reg_bitmap |=  1 << (X_Sn + 8) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 12:
         reg_bitmap |=  1 << (X_Sn + 7) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 11:
         reg_bitmap |=  1 << (X_Sn + 6) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 10:
         reg_bitmap |=  1 << (X_Sn + 5) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 9:
         reg_bitmap |=  1 << (X_Sn + 4) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 8:
         reg_bitmap |=  1 << (X_Sn + 3) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 7:
         reg_bitmap |=  1 << (X_Sn + 2) ;
-        /* FALL THROUGH */
+        fallthrough;
     case 6:
         reg_bitmap |=  1 << X_S1 ;
-        /* FALL THROUGH */
+        fallthrough;
     case 5:
         reg_bitmap |= 1 << X_S0;
-        /* FALL THROUGH */
+        fallthrough;
     case 4:
         reg_bitmap |= 1 << xRA;
         break;
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index f0be79bb16..c99e513221 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -446,7 +446,7 @@ static TCGv_i64 get_fpr_hs(DisasContext *ctx, int reg_num)
         return t;
     }
 #else
-    /* fall through */
+    fallthrough;
     case MXL_RV64:
         return cpu_gpr[reg_num];
 #endif
@@ -516,7 +516,7 @@ static void gen_set_fpr_hs(DisasContext *ctx, int reg_num, 
TCGv_i64 t)
             tcg_gen_extrl_i64_i32(cpu_gpr[reg_num], t);
             break;
 #else
-        /* fall through */
+        fallthrough;
         case MXL_RV64:
             tcg_gen_mov_i64(cpu_gpr[reg_num], t);
             break;
-- 
2.39.2