Use the same vext_get_vlmax() logic to retrieve 'vlmax' in
trans_vrgather_vi() and trans_vrgather_vx().

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
---
 target/riscv/insn_trans/trans_rvv.c.inc | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index b4663b6e1f..05c243186d 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -3535,8 +3535,7 @@ static bool trans_vrgather_vx(DisasContext *s, arg_rmrr *a)
     }
 
     if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) {
-        int scale = s->lmul - (s->sew + 3);
-        int vlmax = s->cfg_ptr->vlen >> -scale;
+        int vlmax = s->cfg_ptr->vlenb >> (s->sew - s->lmul);
         TCGv_i64 dest = tcg_temp_new_i64();
 
         if (a->rs1 == 0) {
@@ -3566,8 +3565,7 @@ static bool trans_vrgather_vi(DisasContext *s, arg_rmrr *a)
     }
 
     if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) {
-        int scale = s->lmul - (s->sew + 3);
-        int vlmax = s->cfg_ptr->vlen >> -scale;
+        int vlmax = s->cfg_ptr->vlenb >> (s->sew - s->lmul);
         if (a->rs1 >= vlmax) {
             tcg_gen_gvec_dup_imm(MO_64, vreg_ofs(s, a->rd),
                                  MAXSZ(s), MAXSZ(s), 0);
-- 
2.43.0