Jonathan Wright via Gcc-patches <gcc-patches@gcc.gnu.org> writes:
> Hi,
>
> As subject, this patch updates the attributes of all intrinsics defined in
> arm_fp16.h to be consistent with the attributes of the intrinsics defined
> in arm_neon.h. Specifically, this means updating the attributes from:
>   __extension__ static __inline <type>
>   __attribute__ ((__always_inline__))
> to:
>   __extension__ extern __inline <type>
>   __attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>
> Regression tested and bootstrapped on aarch64-none-linux-gnu - no
> issues.
>
> Ok for master?

OK, thanks.

Richard

> Thanks,
> Jonathan
>
> ---
>
> gcc/ChangeLog:
>
> 2021-03-18  Jonathan Wright  <jonathan.wri...@arm.com>
>
>       * config/aarch64/arm_fp16.h (__attribute__): Make intrinsic
>       attributes consistent with those defined in arm_neon.h.
>
> diff --git a/gcc/config/aarch64/arm_fp16.h b/gcc/config/aarch64/arm_fp16.h
> index 
> 2afbd1203361b54d6e1315ffaa1bec21834c060e..26339533cd6e4878bd3de50a1bb215d244032175
>  100644
> --- a/gcc/config/aarch64/arm_fp16.h
> +++ b/gcc/config/aarch64/arm_fp16.h
> @@ -36,325 +36,379 @@ typedef __fp16 float16_t;
>  
>  /* ARMv8.2-A FP16 one operand scalar intrinsics.  */
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vabsh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_abshf (__a);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vceqzh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_cmeqhf_uss (__a, 0.0f);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcgezh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_cmgehf_uss (__a, 0.0f);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcgtzh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_cmgthf_uss (__a, 0.0f);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vclezh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_cmlehf_uss (__a, 0.0f);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcltzh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_cmlthf_uss (__a, 0.0f);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_f16_s16 (int16_t __a)
>  {
>    return __builtin_aarch64_floathihf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_f16_s32 (int32_t __a)
>  {
>    return __builtin_aarch64_floatsihf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_f16_s64 (int64_t __a)
>  {
>    return __builtin_aarch64_floatdihf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_f16_u16 (uint16_t __a)
>  {
>    return __builtin_aarch64_floatunshihf_us (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_f16_u32 (uint32_t __a)
>  {
>    return __builtin_aarch64_floatunssihf_us (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_f16_u64 (uint64_t __a)
>  {
>    return __builtin_aarch64_floatunsdihf_us (__a);
>  }
>  
> -__extension__ static __inline int16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_s16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_fix_trunchfhi (__a);
>  }
>  
> -__extension__ static __inline int32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_s32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_fix_trunchfsi (__a);
>  }
>  
> -__extension__ static __inline int64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_s64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_fix_trunchfdi (__a);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_u16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_fixuns_trunchfhi_us (__a);
>  }
>  
> -__extension__ static __inline uint32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_u32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_fixuns_trunchfsi_us (__a);
>  }
>  
> -__extension__ static __inline uint64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_u64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_fixuns_trunchfdi_us (__a);
>  }
>  
> -__extension__ static __inline int16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtah_s16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lroundhfhi (__a);
>  }
>  
> -__extension__ static __inline int32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtah_s32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lroundhfsi (__a);
>  }
>  
> -__extension__ static __inline int64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtah_s64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lroundhfdi (__a);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtah_u16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lrounduhfhi_us (__a);
>  }
>  
> -__extension__ static __inline uint32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtah_u32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lrounduhfsi_us (__a);
>  }
>  
> -__extension__ static __inline uint64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtah_u64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lrounduhfdi_us (__a);
>  }
>  
> -__extension__ static __inline int16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtmh_s16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfloorhfhi (__a);
>  }
>  
> -__extension__ static __inline int32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtmh_s32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfloorhfsi (__a);
>  }
>  
> -__extension__ static __inline int64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtmh_s64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfloorhfdi (__a);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtmh_u16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lflooruhfhi_us (__a);
>  }
>  
> -__extension__ static __inline uint32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtmh_u32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lflooruhfsi_us (__a);
>  }
>  
> -__extension__ static __inline uint64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtmh_u64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lflooruhfdi_us (__a);
>  }
>  
> -__extension__ static __inline int16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtnh_s16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfrintnhfhi (__a);
>  }
>  
> -__extension__ static __inline int32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtnh_s32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfrintnhfsi (__a);
>  }
>  
> -__extension__ static __inline int64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtnh_s64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfrintnhfdi (__a);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtnh_u16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfrintnuhfhi_us (__a);
>  }
>  
> -__extension__ static __inline uint32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtnh_u32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfrintnuhfsi_us (__a);
>  }
>  
> -__extension__ static __inline uint64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtnh_u64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lfrintnuhfdi_us (__a);
>  }
>  
> -__extension__ static __inline int16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtph_s16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lceilhfhi (__a);
>  }
>  
> -__extension__ static __inline int32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtph_s32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lceilhfsi (__a);
>  }
>  
> -__extension__ static __inline int64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtph_s64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lceilhfdi (__a);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtph_u16_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lceiluhfhi_us (__a);
>  }
>  
> -__extension__ static __inline uint32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtph_u32_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lceiluhfsi_us (__a);
>  }
>  
> -__extension__ static __inline uint64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvtph_u64_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_lceiluhfdi_us (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vnegh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_neghf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrecpeh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_frecpehf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrecpxh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_frecpxhf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrndh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_btrunchf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrndah_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_roundhf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrndih_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_nearbyinthf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrndmh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_floorhf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrndnh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_frintnhf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrndph_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_ceilhf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrndxh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_rinthf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrsqrteh_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_rsqrtehf (__a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vsqrth_f16 (float16_t __a)
>  {
>    return __builtin_aarch64_sqrthf (__a);
> @@ -362,199 +416,232 @@ vsqrth_f16 (float16_t __a)
>  
>  /* ARMv8.2-A FP16 two operands scalar intrinsics.  */
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vaddh_f16 (float16_t __a, float16_t __b)
>  {
>    return __a + __b;
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vabdh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_fabdhf (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcageh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_facgehf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcagth_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_facgthf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcaleh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_faclehf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcalth_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_faclthf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vceqh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_cmeqhf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcgeh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_cmgehf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcgth_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_cmgthf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcleh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_cmlehf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vclth_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_cmlthf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_f16_s16 (int16_t __a, const int __b)
>  {
>    return __builtin_aarch64_scvtfhi (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_f16_s32 (int32_t __a, const int __b)
>  {
>    return __builtin_aarch64_scvtfsihf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_f16_s64 (int64_t __a, const int __b)
>  {
>    return __builtin_aarch64_scvtfdihf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_f16_u16 (uint16_t __a, const int __b)
>  {
>    return __builtin_aarch64_ucvtfhi_sus (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_f16_u32 (uint32_t __a, const int __b)
>  {
>    return __builtin_aarch64_ucvtfsihf_sus (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_f16_u64 (uint64_t __a, const int __b)
>  {
>    return __builtin_aarch64_ucvtfdihf_sus (__a, __b);
>  }
>  
> -__extension__ static __inline int16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_s16_f16 (float16_t __a, const int __b)
>  {
>    return __builtin_aarch64_fcvtzshf (__a, __b);
>  }
>  
> -__extension__ static __inline int32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_s32_f16 (float16_t __a, const int __b)
>  {
>    return __builtin_aarch64_fcvtzshfsi (__a, __b);
>  }
>  
> -__extension__ static __inline int64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline int64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_s64_f16 (float16_t __a, const int __b)
>  {
>    return __builtin_aarch64_fcvtzshfdi (__a, __b);
>  }
>  
> -__extension__ static __inline uint16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_u16_f16 (float16_t __a, const int __b)
>  {
>    return __builtin_aarch64_fcvtzuhf_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint32_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint32_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_u32_f16 (float16_t __a, const int __b)
>  {
>    return __builtin_aarch64_fcvtzuhfsi_uss (__a, __b);
>  }
>  
> -__extension__ static __inline uint64_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline uint64_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vcvth_n_u64_f16 (float16_t __a, const int __b)
>  {
>    return __builtin_aarch64_fcvtzuhfdi_uss (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vdivh_f16 (float16_t __a, float16_t __b)
>  {
>    return __a / __b;
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vmaxh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_fmaxhf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vmaxnmh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_fmaxhf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vminh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_fminhf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vminnmh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_fminhf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vmulh_f16 (float16_t __a, float16_t __b)
>  {
>    return __a * __b;
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vmulxh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_fmulxhf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrecpsh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_frecpshf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vrsqrtsh_f16 (float16_t __a, float16_t __b)
>  {
>    return __builtin_aarch64_rsqrtshf (__a, __b);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vsubh_f16 (float16_t __a, float16_t __b)
>  {
>    return __a - __b;
> @@ -562,13 +649,15 @@ vsubh_f16 (float16_t __a, float16_t __b)
>  
>  /* ARMv8.2-A FP16 three operands scalar intrinsics.  */
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vfmah_f16 (float16_t __a, float16_t __b, float16_t __c)
>  {
>    return __builtin_aarch64_fmahf (__b, __c, __a);
>  }
>  
> -__extension__ static __inline float16_t __attribute__ ((__always_inline__))
> +__extension__ extern __inline float16_t
> +__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
>  vfmsh_f16 (float16_t __a, float16_t __b, float16_t __c)
>  {
>    return __builtin_aarch64_fnmahf (__b, __c, __a);

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