diff mbox series

[v6,8/9] target/riscv: Clear vstart_qe_zero flag

Message ID 20240221213140.365232-9-dbarboza@ventanamicro.com
State New
Headers show
Series riscv: set vstart_eq_zero on mark_vs_dirty | expand

Commit Message

Daniel Henrique Barboza Feb. 21, 2024, 9:31 p.m. UTC
From: Ivan Klokov <ivan.klokov@syntacore.com>

The vstart_qe_zero flag is set at the beginning of the translation
phase from the env->vstart variable. During the execution phase all
functions will set env->vstart = 0 after a successful execution,
but the vstart_eq_zero flag remains the same as at the start of the
block. This will wrongly cause SIGILLs in translations that requires
env->vstart = 0 and might be reading vstart_eq_zero = false.

This patch adds a new finalize_rvv_inst() helper that is called at the
end of each vector instruction that will both update vstart_eq_zero and
do a mark_vs_dirty().

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1976
Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/riscv/insn_trans/trans_rvbf16.c.inc |  6 +-
 target/riscv/insn_trans/trans_rvv.c.inc    | 78 ++++++++++++----------
 target/riscv/insn_trans/trans_rvvk.c.inc   | 12 ++--
 target/riscv/translate.c                   |  6 ++
 4 files changed, 56 insertions(+), 46 deletions(-)

Comments

Alistair Francis March 6, 2024, 1:38 a.m. UTC | #1
On Thu, Feb 22, 2024 at 7:34 AM Daniel Henrique Barboza
<dbarboza@ventanamicro.com> wrote:
>
> From: Ivan Klokov <ivan.klokov@syntacore.com>
>
> The vstart_qe_zero flag is set at the beginning of the translation
> phase from the env->vstart variable. During the execution phase all
> functions will set env->vstart = 0 after a successful execution,
> but the vstart_eq_zero flag remains the same as at the start of the
> block. This will wrongly cause SIGILLs in translations that requires
> env->vstart = 0 and might be reading vstart_eq_zero = false.
>
> This patch adds a new finalize_rvv_inst() helper that is called at the
> end of each vector instruction that will both update vstart_eq_zero and
> do a mark_vs_dirty().
>
> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1976
> Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com>
> Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

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

Alistair

> ---
>  target/riscv/insn_trans/trans_rvbf16.c.inc |  6 +-
>  target/riscv/insn_trans/trans_rvv.c.inc    | 78 ++++++++++++----------
>  target/riscv/insn_trans/trans_rvvk.c.inc   | 12 ++--
>  target/riscv/translate.c                   |  6 ++
>  4 files changed, 56 insertions(+), 46 deletions(-)
>
> diff --git a/target/riscv/insn_trans/trans_rvbf16.c.inc b/target/riscv/insn_trans/trans_rvbf16.c.inc
> index a842e76a6b..0a9cd1ec31 100644
> --- a/target/riscv/insn_trans/trans_rvbf16.c.inc
> +++ b/target/riscv/insn_trans/trans_rvbf16.c.inc
> @@ -83,7 +83,7 @@ static bool trans_vfncvtbf16_f_f_w(DisasContext *ctx, arg_vfncvtbf16_f_f_w *a)
>                             ctx->cfg_ptr->vlenb,
>                             ctx->cfg_ptr->vlenb, data,
>                             gen_helper_vfncvtbf16_f_f_w);
> -        mark_vs_dirty(ctx);
> +        finalize_rvv_inst(ctx);
>          return true;
>      }
>      return false;
> @@ -108,7 +108,7 @@ static bool trans_vfwcvtbf16_f_f_v(DisasContext *ctx, arg_vfwcvtbf16_f_f_v *a)
>                             ctx->cfg_ptr->vlenb,
>                             ctx->cfg_ptr->vlenb, data,
>                             gen_helper_vfwcvtbf16_f_f_v);
> -        mark_vs_dirty(ctx);
> +        finalize_rvv_inst(ctx);
>          return true;
>      }
>      return false;
> @@ -135,7 +135,7 @@ static bool trans_vfwmaccbf16_vv(DisasContext *ctx, arg_vfwmaccbf16_vv *a)
>                             ctx->cfg_ptr->vlenb,
>                             ctx->cfg_ptr->vlenb, data,
>                             gen_helper_vfwmaccbf16_vv);
> -        mark_vs_dirty(ctx);
> +        finalize_rvv_inst(ctx);
>          return true;
>      }
>      return false;
> diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
> index db08efa278..1933a6f5c2 100644
> --- a/target/riscv/insn_trans/trans_rvv.c.inc
> +++ b/target/riscv/insn_trans/trans_rvv.c.inc
> @@ -167,7 +167,7 @@ static bool do_vsetvl(DisasContext *s, int rd, int rs1, TCGv s2)
>
>      gen_helper_vsetvl(dst, tcg_env, s1, s2);
>      gen_set_gpr(s, rd, dst);
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>
>      gen_update_pc(s, s->cur_insn_len);
>      lookup_and_goto_ptr(s);
> @@ -187,7 +187,7 @@ static bool do_vsetivli(DisasContext *s, int rd, TCGv s1, TCGv s2)
>
>      gen_helper_vsetvl(dst, tcg_env, s1, s2);
>      gen_set_gpr(s, rd, dst);
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      gen_update_pc(s, s->cur_insn_len);
>      lookup_and_goto_ptr(s);
>      s->base.is_jmp = DISAS_NORETURN;
> @@ -636,6 +636,7 @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data,
>
>      fn(dest, mask, base, tcg_env, desc);
>
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -791,6 +792,7 @@ static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2,
>
>      fn(dest, mask, base, stride, tcg_env, desc);
>
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -892,6 +894,7 @@ static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2,
>
>      fn(dest, mask, base, index, tcg_env, desc);
>
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -1022,7 +1025,7 @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data,
>
>      fn(dest, mask, base, tcg_env, desc);
>
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -1079,6 +1082,7 @@ static bool ldst_whole_trans(uint32_t vd, uint32_t rs1, uint32_t nf,
>
>      fn(dest, base, tcg_env, desc);
>
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -1168,7 +1172,7 @@ do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3Fn *gvec_fn,
>                             tcg_env, s->cfg_ptr->vlenb,
>                             s->cfg_ptr->vlenb, data, fn);
>      }
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -1219,7 +1223,7 @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm,
>
>      fn(dest, mask, src1, src2, tcg_env, desc);
>
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -1244,7 +1248,7 @@ do_opivx_gvec(DisasContext *s, arg_rmrr *a, GVecGen2sFn *gvec_fn,
>          gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
>                  src1, MAXSZ(s), MAXSZ(s));
>
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s);
> @@ -1377,7 +1381,7 @@ static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm,
>
>      fn(dest, mask, src1, src2, tcg_env, desc);
>
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -1391,7 +1395,7 @@ do_opivi_gvec(DisasContext *s, arg_rmrr *a, GVecGen2iFn *gvec_fn,
>      if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) {
>          gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
>                  extract_imm(s, a->rs1, imm_mode), MAXSZ(s), MAXSZ(s));
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s, imm_mode);
> @@ -1450,7 +1454,7 @@ static bool do_opivv_widen(DisasContext *s, arg_rmrr *a,
>                             tcg_env, s->cfg_ptr->vlenb,
>                             s->cfg_ptr->vlenb,
>                             data, fn);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -1522,7 +1526,7 @@ static bool do_opiwv_widen(DisasContext *s, arg_rmrr *a,
>                             vreg_ofs(s, a->rs2),
>                             tcg_env, s->cfg_ptr->vlenb,
>                             s->cfg_ptr->vlenb, data, fn);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -1590,7 +1594,7 @@ static bool opivv_trans(uint32_t vd, uint32_t vs1, uint32_t vs2, uint32_t vm,
>      tcg_gen_gvec_4_ptr(vreg_ofs(s, vd), vreg_ofs(s, 0), vreg_ofs(s, vs1),
>                         vreg_ofs(s, vs2), tcg_env, s->cfg_ptr->vlenb,
>                         s->cfg_ptr->vlenb, data, fn);
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -1723,7 +1727,7 @@ do_opivx_gvec_shift(DisasContext *s, arg_rmrr *a, GVecGen2sFn32 *gvec_fn,
>          gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
>                  src1, MAXSZ(s), MAXSZ(s));
>
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s);
> @@ -1780,7 +1784,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a)             \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data,                \
>                             fns[s->sew]);                           \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -1983,7 +1987,7 @@ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a)
>                                 s->cfg_ptr->vlenb, data,
>                                 fns[s->sew]);
>          }
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -2028,7 +2032,7 @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a)
>              fns[s->sew](dest, s1_i64, tcg_env, desc);
>          }
>
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -2062,7 +2066,7 @@ static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a)
>              tcg_gen_addi_ptr(dest, tcg_env, vreg_ofs(s, a->rd));
>              fns[s->sew](dest, s1, tcg_env, desc);
>          }
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -2210,7 +2214,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a)             \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data,                \
>                             fns[s->sew - 1]);                       \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -2244,7 +2248,7 @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2,
>
>      fn(dest, mask, t1, src2, tcg_env, desc);
>
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> @@ -2319,7 +2323,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a)           \
>                             s->cfg_ptr->vlenb,                    \
>                             s->cfg_ptr->vlenb, data,              \
>                             fns[s->sew - 1]);                     \
> -        mark_vs_dirty(s);                                        \
> +        finalize_rvv_inst(s);                                    \
>          return true;                                             \
>      }                                                            \
>      return false;                                                \
> @@ -2390,7 +2394,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a)             \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data,                \
>                             fns[s->sew - 1]);                       \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -2502,7 +2506,7 @@ static bool do_opfv(DisasContext *s, arg_rmr *a,
>                             vreg_ofs(s, a->rs2), tcg_env,
>                             s->cfg_ptr->vlenb,
>                             s->cfg_ptr->vlenb, data, fn);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -2612,7 +2616,7 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a)
>
>              fns[s->sew - 1](dest, t1, tcg_env, desc);
>          }
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -2684,7 +2688,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data,                \
>                             fns[s->sew - 1]);                       \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -2732,7 +2736,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data,                \
>                             fns[s->sew]);                           \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -2796,7 +2800,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data,                \
>                             fns[s->sew - 1]);                       \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -2842,7 +2846,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data,                \
>                             fns[s->sew]);                           \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -2928,7 +2932,7 @@ static bool trans_##NAME(DisasContext *s, arg_r *a)                \
>                             vreg_ofs(s, a->rs2), tcg_env,           \
>                             s->cfg_ptr->vlenb,                      \
>                             s->cfg_ptr->vlenb, data, fn);           \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -3027,7 +3031,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
>                             tcg_env, s->cfg_ptr->vlenb,             \
>                             s->cfg_ptr->vlenb,                      \
>                             data, fn);                              \
> -        mark_vs_dirty(s);                                          \
> +        finalize_rvv_inst(s);                                      \
>          return true;                                               \
>      }                                                              \
>      return false;                                                  \
> @@ -3066,7 +3070,7 @@ static bool trans_viota_m(DisasContext *s, arg_viota_m *a)
>                             vreg_ofs(s, a->rs2), tcg_env,
>                             s->cfg_ptr->vlenb,
>                             s->cfg_ptr->vlenb, data, fns[s->sew]);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -3093,7 +3097,7 @@ static bool trans_vid_v(DisasContext *s, arg_vid_v *a)
>                             tcg_env, s->cfg_ptr->vlenb,
>                             s->cfg_ptr->vlenb,
>                             data, fns[s->sew]);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -3272,7 +3276,7 @@ static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_x *a)
>          s1 = get_gpr(s, a->rs1, EXT_NONE);
>          tcg_gen_ext_tl_i64(t1, s1);
>          vec_element_storei(s, a->rd, 0, t1);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -3320,7 +3324,7 @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a)
>          do_nanbox(s, t1, cpu_fpr[a->rs1]);
>
>          vec_element_storei(s, a->rd, 0, t1);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -3426,7 +3430,7 @@ static bool trans_vrgather_vx(DisasContext *s, arg_rmrr *a)
>
>          tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd),
>                               MAXSZ(s), MAXSZ(s), dest);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>      } else {
>          static gen_helper_opivx * const fns[4] = {
>              gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h,
> @@ -3454,7 +3458,7 @@ static bool trans_vrgather_vi(DisasContext *s, arg_rmrr *a)
>                                   endian_ofs(s, a->rs2, a->rs1),
>                                   MAXSZ(s), MAXSZ(s));
>          }
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>      } else {
>          static gen_helper_opivx * const fns[4] = {
>              gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h,
> @@ -3499,7 +3503,7 @@ static bool trans_vcompress_vm(DisasContext *s, arg_r *a)
>                             tcg_env, s->cfg_ptr->vlenb,
>                             s->cfg_ptr->vlenb, data,
>                             fns[s->sew]);
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -3524,7 +3528,7 @@ static bool trans_##NAME(DisasContext *s, arg_##NAME * a)               \
>              tcg_gen_gvec_2_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), \
>                                 tcg_env, maxsz, maxsz, 0, gen_helper_vmvr_v); \
>          }                                                               \
> -        mark_vs_dirty(s);                                               \
> +        finalize_rvv_inst(s);                                           \
>          return true;                                                    \
>      }                                                                   \
>      return false;                                                       \
> @@ -3595,7 +3599,7 @@ static bool int_ext_op(DisasContext *s, arg_rmr *a, uint8_t seq)
>                         s->cfg_ptr->vlenb,
>                         s->cfg_ptr->vlenb, data, fn);
>
> -    mark_vs_dirty(s);
> +    finalize_rvv_inst(s);
>      return true;
>  }
>
> diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc
> index 6d640e4596..ae1f40174a 100644
> --- a/target/riscv/insn_trans/trans_rvvk.c.inc
> +++ b/target/riscv/insn_trans/trans_rvvk.c.inc
> @@ -174,7 +174,7 @@ GEN_OPIVX_GVEC_TRANS_CHECK(vandn_vx, andcs, zvkb_vx_check)
>                                 vreg_ofs(s, a->rs2), tcg_env,               \
>                                 s->cfg_ptr->vlenb, s->cfg_ptr->vlenb,       \
>                                 data, fns[s->sew]);                         \
> -            mark_vs_dirty(s);                                              \
> +            finalize_rvv_inst(s);                                          \
>              return true;                                                   \
>          }                                                                  \
>          return false;                                                      \
> @@ -266,7 +266,7 @@ GEN_OPIVI_WIDEN_TRANS(vwsll_vi, IMM_ZX, vwsll_vx, vwsll_vx_check)
>              tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd));              \
>              tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2));            \
>              gen_helper_##NAME(rd_v, rs2_v, tcg_env, desc);                    \
> -            mark_vs_dirty(s);                                                 \
> +            finalize_rvv_inst(s);                                             \
>              return true;                                                      \
>          }                                                                     \
>          return false;                                                         \
> @@ -341,7 +341,7 @@ GEN_V_UNMASKED_TRANS(vaesem_vs, vaes_check_vs, ZVKNED_EGS)
>              tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd));              \
>              tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2));            \
>              gen_helper_##NAME(rd_v, rs2_v, uimm_v, tcg_env, desc);            \
> -            mark_vs_dirty(s);                                                 \
> +            finalize_rvv_inst(s);                                             \
>              return true;                                                      \
>          }                                                                     \
>          return false;                                                         \
> @@ -405,7 +405,7 @@ GEN_VI_UNMASKED_TRANS(vaeskf2_vi, vaeskf2_check, ZVKNED_EGS)
>                                 s->cfg_ptr->vlenb, s->cfg_ptr->vlenb,          \
>                                 data, gen_helper_##NAME);                      \
>                                                                                \
> -            mark_vs_dirty(s);                                                 \
> +            finalize_rvv_inst(s);                                             \
>              return true;                                                      \
>          }                                                                     \
>          return false;                                                         \
> @@ -457,7 +457,7 @@ static bool trans_vsha2cl_vv(DisasContext *s, arg_rmrr *a)
>              s->sew == MO_32 ?
>                  gen_helper_vsha2cl32_vv : gen_helper_vsha2cl64_vv);
>
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> @@ -488,7 +488,7 @@ static bool trans_vsha2ch_vv(DisasContext *s, arg_rmrr *a)
>              s->sew == MO_32 ?
>                  gen_helper_vsha2ch32_vv : gen_helper_vsha2ch64_vv);
>
> -        mark_vs_dirty(s);
> +        finalize_rvv_inst(s);
>          return true;
>      }
>      return false;
> diff --git a/target/riscv/translate.c b/target/riscv/translate.c
> index 3040f5e0e4..6b107186de 100644
> --- a/target/riscv/translate.c
> +++ b/target/riscv/translate.c
> @@ -674,6 +674,12 @@ static void mark_vs_dirty(DisasContext *ctx)
>  static inline void mark_vs_dirty(DisasContext *ctx) { }
>  #endif
>
> +static void finalize_rvv_inst(DisasContext *ctx)
> +{
> +    mark_vs_dirty(ctx);
> +    ctx->vstart_eq_zero = true;
> +}
> +
>  static void gen_set_rm(DisasContext *ctx, int rm)
>  {
>      if (ctx->frm == rm) {
> --
> 2.43.2
>
>
diff mbox series

Patch

diff --git a/target/riscv/insn_trans/trans_rvbf16.c.inc b/target/riscv/insn_trans/trans_rvbf16.c.inc
index a842e76a6b..0a9cd1ec31 100644
--- a/target/riscv/insn_trans/trans_rvbf16.c.inc
+++ b/target/riscv/insn_trans/trans_rvbf16.c.inc
@@ -83,7 +83,7 @@  static bool trans_vfncvtbf16_f_f_w(DisasContext *ctx, arg_vfncvtbf16_f_f_w *a)
                            ctx->cfg_ptr->vlenb,
                            ctx->cfg_ptr->vlenb, data,
                            gen_helper_vfncvtbf16_f_f_w);
-        mark_vs_dirty(ctx);
+        finalize_rvv_inst(ctx);
         return true;
     }
     return false;
@@ -108,7 +108,7 @@  static bool trans_vfwcvtbf16_f_f_v(DisasContext *ctx, arg_vfwcvtbf16_f_f_v *a)
                            ctx->cfg_ptr->vlenb,
                            ctx->cfg_ptr->vlenb, data,
                            gen_helper_vfwcvtbf16_f_f_v);
-        mark_vs_dirty(ctx);
+        finalize_rvv_inst(ctx);
         return true;
     }
     return false;
@@ -135,7 +135,7 @@  static bool trans_vfwmaccbf16_vv(DisasContext *ctx, arg_vfwmaccbf16_vv *a)
                            ctx->cfg_ptr->vlenb,
                            ctx->cfg_ptr->vlenb, data,
                            gen_helper_vfwmaccbf16_vv);
-        mark_vs_dirty(ctx);
+        finalize_rvv_inst(ctx);
         return true;
     }
     return false;
diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index db08efa278..1933a6f5c2 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -167,7 +167,7 @@  static bool do_vsetvl(DisasContext *s, int rd, int rs1, TCGv s2)
 
     gen_helper_vsetvl(dst, tcg_env, s1, s2);
     gen_set_gpr(s, rd, dst);
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
 
     gen_update_pc(s, s->cur_insn_len);
     lookup_and_goto_ptr(s);
@@ -187,7 +187,7 @@  static bool do_vsetivli(DisasContext *s, int rd, TCGv s1, TCGv s2)
 
     gen_helper_vsetvl(dst, tcg_env, s1, s2);
     gen_set_gpr(s, rd, dst);
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     gen_update_pc(s, s->cur_insn_len);
     lookup_and_goto_ptr(s);
     s->base.is_jmp = DISAS_NORETURN;
@@ -636,6 +636,7 @@  static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data,
 
     fn(dest, mask, base, tcg_env, desc);
 
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -791,6 +792,7 @@  static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2,
 
     fn(dest, mask, base, stride, tcg_env, desc);
 
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -892,6 +894,7 @@  static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2,
 
     fn(dest, mask, base, index, tcg_env, desc);
 
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -1022,7 +1025,7 @@  static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data,
 
     fn(dest, mask, base, tcg_env, desc);
 
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -1079,6 +1082,7 @@  static bool ldst_whole_trans(uint32_t vd, uint32_t rs1, uint32_t nf,
 
     fn(dest, base, tcg_env, desc);
 
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -1168,7 +1172,7 @@  do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3Fn *gvec_fn,
                            tcg_env, s->cfg_ptr->vlenb,
                            s->cfg_ptr->vlenb, data, fn);
     }
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -1219,7 +1223,7 @@  static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm,
 
     fn(dest, mask, src1, src2, tcg_env, desc);
 
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -1244,7 +1248,7 @@  do_opivx_gvec(DisasContext *s, arg_rmrr *a, GVecGen2sFn *gvec_fn,
         gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
                 src1, MAXSZ(s), MAXSZ(s));
 
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s);
@@ -1377,7 +1381,7 @@  static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm,
 
     fn(dest, mask, src1, src2, tcg_env, desc);
 
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -1391,7 +1395,7 @@  do_opivi_gvec(DisasContext *s, arg_rmrr *a, GVecGen2iFn *gvec_fn,
     if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) {
         gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
                 extract_imm(s, a->rs1, imm_mode), MAXSZ(s), MAXSZ(s));
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s, imm_mode);
@@ -1450,7 +1454,7 @@  static bool do_opivv_widen(DisasContext *s, arg_rmrr *a,
                            tcg_env, s->cfg_ptr->vlenb,
                            s->cfg_ptr->vlenb,
                            data, fn);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -1522,7 +1526,7 @@  static bool do_opiwv_widen(DisasContext *s, arg_rmrr *a,
                            vreg_ofs(s, a->rs2),
                            tcg_env, s->cfg_ptr->vlenb,
                            s->cfg_ptr->vlenb, data, fn);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -1590,7 +1594,7 @@  static bool opivv_trans(uint32_t vd, uint32_t vs1, uint32_t vs2, uint32_t vm,
     tcg_gen_gvec_4_ptr(vreg_ofs(s, vd), vreg_ofs(s, 0), vreg_ofs(s, vs1),
                        vreg_ofs(s, vs2), tcg_env, s->cfg_ptr->vlenb,
                        s->cfg_ptr->vlenb, data, fn);
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -1723,7 +1727,7 @@  do_opivx_gvec_shift(DisasContext *s, arg_rmrr *a, GVecGen2sFn32 *gvec_fn,
         gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
                 src1, MAXSZ(s), MAXSZ(s));
 
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s);
@@ -1780,7 +1784,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmrr *a)             \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data,                \
                            fns[s->sew]);                           \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -1983,7 +1987,7 @@  static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a)
                                s->cfg_ptr->vlenb, data,
                                fns[s->sew]);
         }
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -2028,7 +2032,7 @@  static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a)
             fns[s->sew](dest, s1_i64, tcg_env, desc);
         }
 
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -2062,7 +2066,7 @@  static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a)
             tcg_gen_addi_ptr(dest, tcg_env, vreg_ofs(s, a->rd));
             fns[s->sew](dest, s1, tcg_env, desc);
         }
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -2210,7 +2214,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmrr *a)             \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data,                \
                            fns[s->sew - 1]);                       \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -2244,7 +2248,7 @@  static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2,
 
     fn(dest, mask, t1, src2, tcg_env, desc);
 
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     return true;
 }
 
@@ -2319,7 +2323,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmrr *a)           \
                            s->cfg_ptr->vlenb,                    \
                            s->cfg_ptr->vlenb, data,              \
                            fns[s->sew - 1]);                     \
-        mark_vs_dirty(s);                                        \
+        finalize_rvv_inst(s);                                    \
         return true;                                             \
     }                                                            \
     return false;                                                \
@@ -2390,7 +2394,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmrr *a)             \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data,                \
                            fns[s->sew - 1]);                       \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -2502,7 +2506,7 @@  static bool do_opfv(DisasContext *s, arg_rmr *a,
                            vreg_ofs(s, a->rs2), tcg_env,
                            s->cfg_ptr->vlenb,
                            s->cfg_ptr->vlenb, data, fn);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -2612,7 +2616,7 @@  static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a)
 
             fns[s->sew - 1](dest, t1, tcg_env, desc);
         }
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -2684,7 +2688,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data,                \
                            fns[s->sew - 1]);                       \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -2732,7 +2736,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data,                \
                            fns[s->sew]);                           \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -2796,7 +2800,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data,                \
                            fns[s->sew - 1]);                       \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -2842,7 +2846,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data,                \
                            fns[s->sew]);                           \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -2928,7 +2932,7 @@  static bool trans_##NAME(DisasContext *s, arg_r *a)                \
                            vreg_ofs(s, a->rs2), tcg_env,           \
                            s->cfg_ptr->vlenb,                      \
                            s->cfg_ptr->vlenb, data, fn);           \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -3027,7 +3031,7 @@  static bool trans_##NAME(DisasContext *s, arg_rmr *a)              \
                            tcg_env, s->cfg_ptr->vlenb,             \
                            s->cfg_ptr->vlenb,                      \
                            data, fn);                              \
-        mark_vs_dirty(s);                                          \
+        finalize_rvv_inst(s);                                      \
         return true;                                               \
     }                                                              \
     return false;                                                  \
@@ -3066,7 +3070,7 @@  static bool trans_viota_m(DisasContext *s, arg_viota_m *a)
                            vreg_ofs(s, a->rs2), tcg_env,
                            s->cfg_ptr->vlenb,
                            s->cfg_ptr->vlenb, data, fns[s->sew]);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -3093,7 +3097,7 @@  static bool trans_vid_v(DisasContext *s, arg_vid_v *a)
                            tcg_env, s->cfg_ptr->vlenb,
                            s->cfg_ptr->vlenb,
                            data, fns[s->sew]);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -3272,7 +3276,7 @@  static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_x *a)
         s1 = get_gpr(s, a->rs1, EXT_NONE);
         tcg_gen_ext_tl_i64(t1, s1);
         vec_element_storei(s, a->rd, 0, t1);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -3320,7 +3324,7 @@  static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a)
         do_nanbox(s, t1, cpu_fpr[a->rs1]);
 
         vec_element_storei(s, a->rd, 0, t1);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -3426,7 +3430,7 @@  static bool trans_vrgather_vx(DisasContext *s, arg_rmrr *a)
 
         tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd),
                              MAXSZ(s), MAXSZ(s), dest);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
     } else {
         static gen_helper_opivx * const fns[4] = {
             gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h,
@@ -3454,7 +3458,7 @@  static bool trans_vrgather_vi(DisasContext *s, arg_rmrr *a)
                                  endian_ofs(s, a->rs2, a->rs1),
                                  MAXSZ(s), MAXSZ(s));
         }
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
     } else {
         static gen_helper_opivx * const fns[4] = {
             gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h,
@@ -3499,7 +3503,7 @@  static bool trans_vcompress_vm(DisasContext *s, arg_r *a)
                            tcg_env, s->cfg_ptr->vlenb,
                            s->cfg_ptr->vlenb, data,
                            fns[s->sew]);
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -3524,7 +3528,7 @@  static bool trans_##NAME(DisasContext *s, arg_##NAME * a)               \
             tcg_gen_gvec_2_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), \
                                tcg_env, maxsz, maxsz, 0, gen_helper_vmvr_v); \
         }                                                               \
-        mark_vs_dirty(s);                                               \
+        finalize_rvv_inst(s);                                           \
         return true;                                                    \
     }                                                                   \
     return false;                                                       \
@@ -3595,7 +3599,7 @@  static bool int_ext_op(DisasContext *s, arg_rmr *a, uint8_t seq)
                        s->cfg_ptr->vlenb,
                        s->cfg_ptr->vlenb, data, fn);
 
-    mark_vs_dirty(s);
+    finalize_rvv_inst(s);
     return true;
 }
 
diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc
index 6d640e4596..ae1f40174a 100644
--- a/target/riscv/insn_trans/trans_rvvk.c.inc
+++ b/target/riscv/insn_trans/trans_rvvk.c.inc
@@ -174,7 +174,7 @@  GEN_OPIVX_GVEC_TRANS_CHECK(vandn_vx, andcs, zvkb_vx_check)
                                vreg_ofs(s, a->rs2), tcg_env,               \
                                s->cfg_ptr->vlenb, s->cfg_ptr->vlenb,       \
                                data, fns[s->sew]);                         \
-            mark_vs_dirty(s);                                              \
+            finalize_rvv_inst(s);                                          \
             return true;                                                   \
         }                                                                  \
         return false;                                                      \
@@ -266,7 +266,7 @@  GEN_OPIVI_WIDEN_TRANS(vwsll_vi, IMM_ZX, vwsll_vx, vwsll_vx_check)
             tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd));              \
             tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2));            \
             gen_helper_##NAME(rd_v, rs2_v, tcg_env, desc);                    \
-            mark_vs_dirty(s);                                                 \
+            finalize_rvv_inst(s);                                             \
             return true;                                                      \
         }                                                                     \
         return false;                                                         \
@@ -341,7 +341,7 @@  GEN_V_UNMASKED_TRANS(vaesem_vs, vaes_check_vs, ZVKNED_EGS)
             tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd));              \
             tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2));            \
             gen_helper_##NAME(rd_v, rs2_v, uimm_v, tcg_env, desc);            \
-            mark_vs_dirty(s);                                                 \
+            finalize_rvv_inst(s);                                             \
             return true;                                                      \
         }                                                                     \
         return false;                                                         \
@@ -405,7 +405,7 @@  GEN_VI_UNMASKED_TRANS(vaeskf2_vi, vaeskf2_check, ZVKNED_EGS)
                                s->cfg_ptr->vlenb, s->cfg_ptr->vlenb,          \
                                data, gen_helper_##NAME);                      \
                                                                               \
-            mark_vs_dirty(s);                                                 \
+            finalize_rvv_inst(s);                                             \
             return true;                                                      \
         }                                                                     \
         return false;                                                         \
@@ -457,7 +457,7 @@  static bool trans_vsha2cl_vv(DisasContext *s, arg_rmrr *a)
             s->sew == MO_32 ?
                 gen_helper_vsha2cl32_vv : gen_helper_vsha2cl64_vv);
 
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
@@ -488,7 +488,7 @@  static bool trans_vsha2ch_vv(DisasContext *s, arg_rmrr *a)
             s->sew == MO_32 ?
                 gen_helper_vsha2ch32_vv : gen_helper_vsha2ch64_vv);
 
-        mark_vs_dirty(s);
+        finalize_rvv_inst(s);
         return true;
     }
     return false;
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index 3040f5e0e4..6b107186de 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -674,6 +674,12 @@  static void mark_vs_dirty(DisasContext *ctx)
 static inline void mark_vs_dirty(DisasContext *ctx) { }
 #endif
 
+static void finalize_rvv_inst(DisasContext *ctx)
+{
+    mark_vs_dirty(ctx);
+    ctx->vstart_eq_zero = true;
+}
+
 static void gen_set_rm(DisasContext *ctx, int rm)
 {
     if (ctx->frm == rm) {