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RE: [PATCH 2/2] target/arm: Use tcg_gen_gvec_5_ptr for sve FMLA/FCMLA


From: Taylor Simpson
Subject: RE: [PATCH 2/2] target/arm: Use tcg_gen_gvec_5_ptr for sve FMLA/FCMLA
Date: Wed, 12 Feb 2020 16:28:10 +0000

Reviewed-by: Taylor Simpson <address@hidden>

> -----Original Message-----
> From: Richard Henderson <address@hidden>
> Sent: Tuesday, February 11, 2020 8:52 PM
> To: address@hidden
> Cc: address@hidden; address@hidden; Taylor Simpson
> <address@hidden>
> Subject: [PATCH 2/2] target/arm: Use tcg_gen_gvec_5_ptr for sve
> FMLA/FCMLA
>
> Now that we can pass 7 parameters, do not encode register
> operands within simd_data.
>
> Signed-off-by: Richard Henderson <address@hidden>
> ---
>  target/arm/helper-sve.h    |  45 +++++++----
>  target/arm/sve_helper.c    | 157 ++++++++++++++-----------------------
>  target/arm/translate-sve.c |  68 ++++++----------
>  3 files changed, 114 insertions(+), 156 deletions(-)
>
> diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
> index 9e79182ab4..bd8b91bdb6 100644
> --- a/target/arm/helper-sve.h
> +++ b/target/arm/helper-sve.h
> @@ -1099,25 +1099,40 @@ DEF_HELPER_FLAGS_6(sve_fcadd_s,
> TCG_CALL_NO_RWG,
>  DEF_HELPER_FLAGS_6(sve_fcadd_d, TCG_CALL_NO_RWG,
>                     void, ptr, ptr, ptr, ptr, ptr, i32)
>
> -DEF_HELPER_FLAGS_3(sve_fmla_zpzzz_h, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fmla_zpzzz_s, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fmla_zpzzz_d, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fmla_zpzzz_h, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fmla_zpzzz_s, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fmla_zpzzz_d, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
>
> -DEF_HELPER_FLAGS_3(sve_fmls_zpzzz_h, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fmls_zpzzz_s, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fmls_zpzzz_d, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fmls_zpzzz_h, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fmls_zpzzz_s, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fmls_zpzzz_d, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
>
> -DEF_HELPER_FLAGS_3(sve_fnmla_zpzzz_h, TCG_CALL_NO_RWG, void,
> env, ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fnmla_zpzzz_s, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fnmla_zpzzz_d, TCG_CALL_NO_RWG, void,
> env, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fnmla_zpzzz_h, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fnmla_zpzzz_s, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fnmla_zpzzz_d, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
>
> -DEF_HELPER_FLAGS_3(sve_fnmls_zpzzz_h, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fnmls_zpzzz_s, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fnmls_zpzzz_d, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fnmls_zpzzz_h, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fnmls_zpzzz_s, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fnmls_zpzzz_d, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
>
> -DEF_HELPER_FLAGS_3(sve_fcmla_zpzzz_h, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fcmla_zpzzz_s, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> -DEF_HELPER_FLAGS_3(sve_fcmla_zpzzz_d, TCG_CALL_NO_RWG, void, env,
> ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fcmla_zpzzz_h, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fcmla_zpzzz_s, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
> +DEF_HELPER_FLAGS_7(sve_fcmla_zpzzz_d, TCG_CALL_NO_RWG,
> +                   void, ptr, ptr, ptr, ptr, ptr, ptr, i32)
>
>  DEF_HELPER_FLAGS_5(sve_ftmad_h, TCG_CALL_NO_RWG, void, ptr, ptr,
> ptr, ptr, i32)
>  DEF_HELPER_FLAGS_5(sve_ftmad_s, TCG_CALL_NO_RWG, void, ptr, ptr,
> ptr, ptr, i32)
> diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
> index fdfa652094..33b5a54a47 100644
> --- a/target/arm/sve_helper.c
> +++ b/target/arm/sve_helper.c
> @@ -3372,23 +3372,11 @@ DO_ZPZ_FP(sve_ucvt_dd, uint64_t,     ,
> uint64_to_float64)
>
>  #undef DO_ZPZ_FP
>
> -/* 4-operand predicated multiply-add.  This requires 7 operands to pass
> - * "properly", so we need to encode some of the registers into DESC.
> - */
> -QEMU_BUILD_BUG_ON(SIMD_DATA_SHIFT + 20 > 32);
> -
> -static void do_fmla_zpzzz_h(CPUARMState *env, void *vg, uint32_t desc,
> +static void do_fmla_zpzzz_h(void *vd, void *vn, void *vm, void *va, void
> *vg,
> +                            float_status *status, uint32_t desc,
>                              uint16_t neg1, uint16_t neg3)
>  {
>      intptr_t i = simd_oprsz(desc);
> -    unsigned rd = extract32(desc, SIMD_DATA_SHIFT, 5);
> -    unsigned rn = extract32(desc, SIMD_DATA_SHIFT + 5, 5);
> -    unsigned rm = extract32(desc, SIMD_DATA_SHIFT + 10, 5);
> -    unsigned ra = extract32(desc, SIMD_DATA_SHIFT + 15, 5);
> -    void *vd = &env->vfp.zregs[rd];
> -    void *vn = &env->vfp.zregs[rn];
> -    void *vm = &env->vfp.zregs[rm];
> -    void *va = &env->vfp.zregs[ra];
>      uint64_t *g = vg;
>
>      do {
> @@ -3401,45 +3389,42 @@ static void do_fmla_zpzzz_h(CPUARMState
> *env, void *vg, uint32_t desc,
>                  e1 = *(uint16_t *)(vn + H1_2(i)) ^ neg1;
>                  e2 = *(uint16_t *)(vm + H1_2(i));
>                  e3 = *(uint16_t *)(va + H1_2(i)) ^ neg3;
> -                r = float16_muladd(e1, e2, e3, 0, &env->vfp.fp_status_f16);
> +                r = float16_muladd(e1, e2, e3, 0, status);
>                  *(uint16_t *)(vd + H1_2(i)) = r;
>              }
>          } while (i & 63);
>      } while (i != 0);
>  }
>
> -void HELPER(sve_fmla_zpzzz_h)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fmla_zpzzz_h)(void *vd, void *vn, void *vm, void *va,
> +                              void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_h(env, vg, desc, 0, 0);
> +    do_fmla_zpzzz_h(vd, vn, vm, va, vg, status, desc, 0, 0);
>  }
>
> -void HELPER(sve_fmls_zpzzz_h)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fmls_zpzzz_h)(void *vd, void *vn, void *vm, void *va,
> +                              void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_h(env, vg, desc, 0x8000, 0);
> +    do_fmla_zpzzz_h(vd, vn, vm, va, vg, status, desc, 0x8000, 0);
>  }
>
> -void HELPER(sve_fnmla_zpzzz_h)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fnmla_zpzzz_h)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_h(env, vg, desc, 0x8000, 0x8000);
> +    do_fmla_zpzzz_h(vd, vn, vm, va, vg, status, desc, 0x8000, 0x8000);
>  }
>
> -void HELPER(sve_fnmls_zpzzz_h)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fnmls_zpzzz_h)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_h(env, vg, desc, 0, 0x8000);
> +    do_fmla_zpzzz_h(vd, vn, vm, va, vg, status, desc, 0, 0x8000);
>  }
>
> -static void do_fmla_zpzzz_s(CPUARMState *env, void *vg, uint32_t desc,
> +static void do_fmla_zpzzz_s(void *vd, void *vn, void *vm, void *va, void
> *vg,
> +                            float_status *status, uint32_t desc,
>                              uint32_t neg1, uint32_t neg3)
>  {
>      intptr_t i = simd_oprsz(desc);
> -    unsigned rd = extract32(desc, SIMD_DATA_SHIFT, 5);
> -    unsigned rn = extract32(desc, SIMD_DATA_SHIFT + 5, 5);
> -    unsigned rm = extract32(desc, SIMD_DATA_SHIFT + 10, 5);
> -    unsigned ra = extract32(desc, SIMD_DATA_SHIFT + 15, 5);
> -    void *vd = &env->vfp.zregs[rd];
> -    void *vn = &env->vfp.zregs[rn];
> -    void *vm = &env->vfp.zregs[rm];
> -    void *va = &env->vfp.zregs[ra];
>      uint64_t *g = vg;
>
>      do {
> @@ -3452,45 +3437,42 @@ static void do_fmla_zpzzz_s(CPUARMState *env,
> void *vg, uint32_t desc,
>                  e1 = *(uint32_t *)(vn + H1_4(i)) ^ neg1;
>                  e2 = *(uint32_t *)(vm + H1_4(i));
>                  e3 = *(uint32_t *)(va + H1_4(i)) ^ neg3;
> -                r = float32_muladd(e1, e2, e3, 0, &env->vfp.fp_status);
> +                r = float32_muladd(e1, e2, e3, 0, status);
>                  *(uint32_t *)(vd + H1_4(i)) = r;
>              }
>          } while (i & 63);
>      } while (i != 0);
>  }
>
> -void HELPER(sve_fmla_zpzzz_s)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fmla_zpzzz_s)(void *vd, void *vn, void *vm, void *va,
> +                              void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_s(env, vg, desc, 0, 0);
> +    do_fmla_zpzzz_s(vd, vn, vm, va, vg, status, desc, 0, 0);
>  }
>
> -void HELPER(sve_fmls_zpzzz_s)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fmls_zpzzz_s)(void *vd, void *vn, void *vm, void *va,
> +                              void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_s(env, vg, desc, 0x80000000, 0);
> +    do_fmla_zpzzz_s(vd, vn, vm, va, vg, status, desc, 0x80000000, 0);
>  }
>
> -void HELPER(sve_fnmla_zpzzz_s)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fnmla_zpzzz_s)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_s(env, vg, desc, 0x80000000, 0x80000000);
> +    do_fmla_zpzzz_s(vd, vn, vm, va, vg, status, desc, 0x80000000,
> 0x80000000);
>  }
>
> -void HELPER(sve_fnmls_zpzzz_s)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fnmls_zpzzz_s)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_s(env, vg, desc, 0, 0x80000000);
> +    do_fmla_zpzzz_s(vd, vn, vm, va, vg, status, desc, 0, 0x80000000);
>  }
>
> -static void do_fmla_zpzzz_d(CPUARMState *env, void *vg, uint32_t desc,
> +static void do_fmla_zpzzz_d(void *vd, void *vn, void *vm, void *va, void
> *vg,
> +                            float_status *status, uint32_t desc,
>                              uint64_t neg1, uint64_t neg3)
>  {
>      intptr_t i = simd_oprsz(desc);
> -    unsigned rd = extract32(desc, SIMD_DATA_SHIFT, 5);
> -    unsigned rn = extract32(desc, SIMD_DATA_SHIFT + 5, 5);
> -    unsigned rm = extract32(desc, SIMD_DATA_SHIFT + 10, 5);
> -    unsigned ra = extract32(desc, SIMD_DATA_SHIFT + 15, 5);
> -    void *vd = &env->vfp.zregs[rd];
> -    void *vn = &env->vfp.zregs[rn];
> -    void *vm = &env->vfp.zregs[rm];
> -    void *va = &env->vfp.zregs[ra];
>      uint64_t *g = vg;
>
>      do {
> @@ -3503,31 +3485,35 @@ static void do_fmla_zpzzz_d(CPUARMState
> *env, void *vg, uint32_t desc,
>                  e1 = *(uint64_t *)(vn + i) ^ neg1;
>                  e2 = *(uint64_t *)(vm + i);
>                  e3 = *(uint64_t *)(va + i) ^ neg3;
> -                r = float64_muladd(e1, e2, e3, 0, &env->vfp.fp_status);
> +                r = float64_muladd(e1, e2, e3, 0, status);
>                  *(uint64_t *)(vd + i) = r;
>              }
>          } while (i & 63);
>      } while (i != 0);
>  }
>
> -void HELPER(sve_fmla_zpzzz_d)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fmla_zpzzz_d)(void *vd, void *vn, void *vm, void *va,
> +                              void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_d(env, vg, desc, 0, 0);
> +    do_fmla_zpzzz_d(vd, vn, vm, va, vg, status, desc, 0, 0);
>  }
>
> -void HELPER(sve_fmls_zpzzz_d)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fmls_zpzzz_d)(void *vd, void *vn, void *vm, void *va,
> +                              void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_d(env, vg, desc, INT64_MIN, 0);
> +    do_fmla_zpzzz_d(vd, vn, vm, va, vg, status, desc, INT64_MIN, 0);
>  }
>
> -void HELPER(sve_fnmla_zpzzz_d)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fnmla_zpzzz_d)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_d(env, vg, desc, INT64_MIN, INT64_MIN);
> +    do_fmla_zpzzz_d(vd, vn, vm, va, vg, status, desc, INT64_MIN,
> INT64_MIN);
>  }
>
> -void HELPER(sve_fnmls_zpzzz_d)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fnmls_zpzzz_d)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
> -    do_fmla_zpzzz_d(env, vg, desc, 0, INT64_MIN);
> +    do_fmla_zpzzz_d(vd, vn, vm, va, vg, status, desc, 0, INT64_MIN);
>  }
>
>  /* Two operand floating-point comparison controlled by a predicate.
> @@ -3809,22 +3795,13 @@ void HELPER(sve_fcadd_d)(void *vd, void *vn,
> void *vm, void *vg,
>   * FP Complex Multiply
>   */
>
> -QEMU_BUILD_BUG_ON(SIMD_DATA_SHIFT + 22 > 32);
> -
> -void HELPER(sve_fcmla_zpzzz_h)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fcmla_zpzzz_h)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
>      intptr_t j, i = simd_oprsz(desc);
> -    unsigned rd = extract32(desc, SIMD_DATA_SHIFT, 5);
> -    unsigned rn = extract32(desc, SIMD_DATA_SHIFT + 5, 5);
> -    unsigned rm = extract32(desc, SIMD_DATA_SHIFT + 10, 5);
> -    unsigned ra = extract32(desc, SIMD_DATA_SHIFT + 15, 5);
> -    unsigned rot = extract32(desc, SIMD_DATA_SHIFT + 20, 2);
> +    unsigned rot = simd_data(desc);
>      bool flip = rot & 1;
>      float16 neg_imag, neg_real;
> -    void *vd = &env->vfp.zregs[rd];
> -    void *vn = &env->vfp.zregs[rn];
> -    void *vm = &env->vfp.zregs[rm];
> -    void *va = &env->vfp.zregs[ra];
>      uint64_t *g = vg;
>
>      neg_imag = float16_set_sign(0, (rot & 2) != 0);
> @@ -3851,32 +3828,25 @@ void HELPER(sve_fcmla_zpzzz_h)(CPUARMState
> *env, void *vg, uint32_t desc)
>
>              if (likely((pg >> (i & 63)) & 1)) {
>                  d = *(float16 *)(va + H1_2(i));
> -                d = float16_muladd(e2, e1, d, 0, &env->vfp.fp_status_f16);
> +                d = float16_muladd(e2, e1, d, 0, status);
>                  *(float16 *)(vd + H1_2(i)) = d;
>              }
>              if (likely((pg >> (j & 63)) & 1)) {
>                  d = *(float16 *)(va + H1_2(j));
> -                d = float16_muladd(e4, e3, d, 0, &env->vfp.fp_status_f16);
> +                d = float16_muladd(e4, e3, d, 0, status);
>                  *(float16 *)(vd + H1_2(j)) = d;
>              }
>          } while (i & 63);
>      } while (i != 0);
>  }
>
> -void HELPER(sve_fcmla_zpzzz_s)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fcmla_zpzzz_s)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
>      intptr_t j, i = simd_oprsz(desc);
> -    unsigned rd = extract32(desc, SIMD_DATA_SHIFT, 5);
> -    unsigned rn = extract32(desc, SIMD_DATA_SHIFT + 5, 5);
> -    unsigned rm = extract32(desc, SIMD_DATA_SHIFT + 10, 5);
> -    unsigned ra = extract32(desc, SIMD_DATA_SHIFT + 15, 5);
> -    unsigned rot = extract32(desc, SIMD_DATA_SHIFT + 20, 2);
> +    unsigned rot = simd_data(desc);
>      bool flip = rot & 1;
>      float32 neg_imag, neg_real;
> -    void *vd = &env->vfp.zregs[rd];
> -    void *vn = &env->vfp.zregs[rn];
> -    void *vm = &env->vfp.zregs[rm];
> -    void *va = &env->vfp.zregs[ra];
>      uint64_t *g = vg;
>
>      neg_imag = float32_set_sign(0, (rot & 2) != 0);
> @@ -3903,32 +3873,25 @@ void HELPER(sve_fcmla_zpzzz_s)(CPUARMState
> *env, void *vg, uint32_t desc)
>
>              if (likely((pg >> (i & 63)) & 1)) {
>                  d = *(float32 *)(va + H1_2(i));
> -                d = float32_muladd(e2, e1, d, 0, &env->vfp.fp_status);
> +                d = float32_muladd(e2, e1, d, 0, status);
>                  *(float32 *)(vd + H1_2(i)) = d;
>              }
>              if (likely((pg >> (j & 63)) & 1)) {
>                  d = *(float32 *)(va + H1_2(j));
> -                d = float32_muladd(e4, e3, d, 0, &env->vfp.fp_status);
> +                d = float32_muladd(e4, e3, d, 0, status);
>                  *(float32 *)(vd + H1_2(j)) = d;
>              }
>          } while (i & 63);
>      } while (i != 0);
>  }
>
> -void HELPER(sve_fcmla_zpzzz_d)(CPUARMState *env, void *vg, uint32_t
> desc)
> +void HELPER(sve_fcmla_zpzzz_d)(void *vd, void *vn, void *vm, void *va,
> +                               void *vg, void *status, uint32_t desc)
>  {
>      intptr_t j, i = simd_oprsz(desc);
> -    unsigned rd = extract32(desc, SIMD_DATA_SHIFT, 5);
> -    unsigned rn = extract32(desc, SIMD_DATA_SHIFT + 5, 5);
> -    unsigned rm = extract32(desc, SIMD_DATA_SHIFT + 10, 5);
> -    unsigned ra = extract32(desc, SIMD_DATA_SHIFT + 15, 5);
> -    unsigned rot = extract32(desc, SIMD_DATA_SHIFT + 20, 2);
> +    unsigned rot = simd_data(desc);
>      bool flip = rot & 1;
>      float64 neg_imag, neg_real;
> -    void *vd = &env->vfp.zregs[rd];
> -    void *vn = &env->vfp.zregs[rn];
> -    void *vm = &env->vfp.zregs[rm];
> -    void *va = &env->vfp.zregs[ra];
>      uint64_t *g = vg;
>
>      neg_imag = float64_set_sign(0, (rot & 2) != 0);
> @@ -3955,12 +3918,12 @@ void HELPER(sve_fcmla_zpzzz_d)(CPUARMState
> *env, void *vg, uint32_t desc)
>
>              if (likely((pg >> (i & 63)) & 1)) {
>                  d = *(float64 *)(va + H1_2(i));
> -                d = float64_muladd(e2, e1, d, 0, &env->vfp.fp_status);
> +                d = float64_muladd(e2, e1, d, 0, status);
>                  *(float64 *)(vd + H1_2(i)) = d;
>              }
>              if (likely((pg >> (j & 63)) & 1)) {
>                  d = *(float64 *)(va + H1_2(j));
> -                d = float64_muladd(e4, e3, d, 0, &env->vfp.fp_status);
> +                d = float64_muladd(e4, e3, d, 0, status);
>                  *(float64 *)(vd + H1_2(j)) = d;
>              }
>          } while (i & 63);
> diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
> index b35bad245e..7607593f6b 100644
> --- a/target/arm/translate-sve.c
> +++ b/target/arm/translate-sve.c
> @@ -3950,40 +3950,30 @@ static bool trans_FCADD(DisasContext *s,
> arg_FCADD *a)
>
>  typedef void gen_helper_sve_fmla(TCGv_env, TCGv_ptr, TCGv_i32);
>
> -static bool do_fmla(DisasContext *s, arg_rprrr_esz *a,
> gen_helper_sve_fmla *fn)
> +static bool do_fmla(DisasContext *s, arg_rprrr_esz *a,
> +                    gen_helper_gvec_5_ptr *fn)
>  {
> -    if (fn == NULL) {
> +    if (a->esz == 0) {
>          return false;
>      }
> -    if (!sve_access_check(s)) {
> -        return true;
> +    if (sve_access_check(s)) {
> +        unsigned vsz = vec_full_reg_size(s);
> +        TCGv_ptr status = get_fpstatus_ptr(a->esz == MO_16);
> +        tcg_gen_gvec_5_ptr(vec_full_reg_offset(s, a->rd),
> +                           vec_full_reg_offset(s, a->rn),
> +                           vec_full_reg_offset(s, a->rm),
> +                           vec_full_reg_offset(s, a->ra),
> +                           pred_full_reg_offset(s, a->pg),
> +                           status, vsz, vsz, 0, fn);
> +        tcg_temp_free_ptr(status);
>      }
> -
> -    unsigned vsz = vec_full_reg_size(s);
> -    unsigned desc;
> -    TCGv_i32 t_desc;
> -    TCGv_ptr pg = tcg_temp_new_ptr();
> -
> -    /* We would need 7 operands to pass these arguments "properly".
> -     * So we encode all the register numbers into the descriptor.
> -     */
> -    desc = deposit32(a->rd, 5, 5, a->rn);
> -    desc = deposit32(desc, 10, 5, a->rm);
> -    desc = deposit32(desc, 15, 5, a->ra);
> -    desc = simd_desc(vsz, vsz, desc);
> -
> -    t_desc = tcg_const_i32(desc);
> -    tcg_gen_addi_ptr(pg, cpu_env, pred_full_reg_offset(s, a->pg));
> -    fn(cpu_env, pg, t_desc);
> -    tcg_temp_free_i32(t_desc);
> -    tcg_temp_free_ptr(pg);
>      return true;
>  }
>
>  #define DO_FMLA(NAME, name) \
>  static bool trans_##NAME(DisasContext *s, arg_rprrr_esz *a)          \
>  {                                                                    \
> -    static gen_helper_sve_fmla * const fns[4] = {                    \
> +    static gen_helper_gvec_5_ptr * const fns[4] = {                  \
>          NULL, gen_helper_sve_##name##_h,                             \
>          gen_helper_sve_##name##_s, gen_helper_sve_##name##_d         \
>      };                                                               \
> @@ -3999,7 +3989,8 @@ DO_FMLA(FNMLS_zpzzz, fnmls_zpzzz)
>
>  static bool trans_FCMLA_zpzzz(DisasContext *s, arg_FCMLA_zpzzz *a)
>  {
> -    static gen_helper_sve_fmla * const fns[3] = {
> +    static gen_helper_gvec_5_ptr * const fns[4] = {
> +        NULL,
>          gen_helper_sve_fcmla_zpzzz_h,
>          gen_helper_sve_fcmla_zpzzz_s,
>          gen_helper_sve_fcmla_zpzzz_d,
> @@ -4010,25 +4001,14 @@ static bool trans_FCMLA_zpzzz(DisasContext *s,
> arg_FCMLA_zpzzz *a)
>      }
>      if (sve_access_check(s)) {
>          unsigned vsz = vec_full_reg_size(s);
> -        unsigned desc;
> -        TCGv_i32 t_desc;
> -        TCGv_ptr pg = tcg_temp_new_ptr();
> -
> -        /* We would need 7 operands to pass these arguments "properly".
> -         * So we encode all the register numbers into the descriptor.
> -         */
> -        desc = deposit32(a->rd, 5, 5, a->rn);
> -        desc = deposit32(desc, 10, 5, a->rm);
> -        desc = deposit32(desc, 15, 5, a->ra);
> -        desc = deposit32(desc, 20, 2, a->rot);
> -        desc = sextract32(desc, 0, 22);
> -        desc = simd_desc(vsz, vsz, desc);
> -
> -        t_desc = tcg_const_i32(desc);
> -        tcg_gen_addi_ptr(pg, cpu_env, pred_full_reg_offset(s, a->pg));
> -        fns[a->esz - 1](cpu_env, pg, t_desc);
> -        tcg_temp_free_i32(t_desc);
> -        tcg_temp_free_ptr(pg);
> +        TCGv_ptr status = get_fpstatus_ptr(a->esz == MO_16);
> +        tcg_gen_gvec_5_ptr(vec_full_reg_offset(s, a->rd),
> +                           vec_full_reg_offset(s, a->rn),
> +                           vec_full_reg_offset(s, a->rm),
> +                           vec_full_reg_offset(s, a->ra),
> +                           pred_full_reg_offset(s, a->pg),
> +                           status, vsz, vsz, a->rot, fns[a->esz]);
> +        tcg_temp_free_ptr(status);
>      }
>      return true;
>  }
> --
> 2.20.1
>




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