[v3] target/riscv: add 'cpu->cfg.vlenb', remove 'cpu->cfg.vlen'

[PATCH v3 12/13] trans_rvv.c.inc: use vext_get_vlmax() in trans_vrgather_v*()

Posted by Daniel Henrique Barboza 10 months ago

Use the helper instead of calculating vlmax by hand.

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..9e101ab434 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 = vext_get_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 = vext_get_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

Re: [PATCH v3 12/13] trans_rvv.c.inc: use vext_get_vlmax() in trans_vrgather_v*()

Posted by Alistair Francis 9 months, 3 weeks ago

On Wed, Jan 17, 2024 at 7:02 AM Daniel Henrique Barboza
<dbarboza@ventanamicro.com> wrote:
>
> Use the helper instead of calculating vlmax by hand.
>
> Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  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..9e101ab434 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 = vext_get_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 = vext_get_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
>
>