Re: [PATCH][AArch64] Implement ACLE intrinsics for FRINT[32,64][Z,X]

[Kyrill Tkachov <kyrylo dot tkachov at foss dot arm dot com>]

On 9/2/19 1:16 PM, Kyrill Tkachov wrote:
> Hi all,
>
> This patch implements the ACLE intrinsics to access the
> FRINT[32,64][Z,X] scalar[1] and vector[2][3] instructions
> from Armv8.5-a. These are enabled when the __ARM_FEATURE_FRINT macro is
> defined.
>
> They're added in a fairly standard way through builtins and unspecs at
> the RTL level.
> The scalar intrinsics

Sorry, some malfunction occurred.

The scalar intrinsics are available through <arm_acle.h> whereas the Adv 
SIMD ones are in <arm_neon.h>

Thanks,

Kyrill


> Bootstrapped and tested on aarch64-none-linux-gnu.
>
> Ok for trunk?
> Thanks,
> Kyrill
>
> [1] 
> https://developer.arm.com/docs/101028/latest/data-processing-intrinsics
> [2]
> https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics?page=2&search=vrnd32
> [3]
> https://developer.arm.com/architectures/instruction-sets/simd-isas/neon/intrinsics?page=2&search=vrnd64
>
> 2019-09-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
>
>      * config/aarch64/aarch64.md ("unspec"): Add UNSPEC_FRINT32Z,
>      UNSPEC_FRINT32X, UNSPEC_FRINT64Z, UNSPEC_FRINT64X.
>      (aarch64_<frintnzs_op><mode>): New define_insn.
>      * config/aarch64/aarch64.h (TARGET_FRINT): Define.
>      * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
>      __ARM_FEATURE_FRINT when appropriate.
>      * config/aarch64/aarch64-simd-builtins.def: Add builtins for 
> frint32z,
>      frint32x, frint64z, frint64x.
>      * config/aarch64/arm_acle.h (__rint32zf, __rint32z, __rint64zf,
>      __rint64z, __rint32xf, __rint32x, __rint64xf, __rint64x): Define.
>      * config/aarch64/arm_neon.h (vrnd32z_f32, vrnd32zq_f32, vrnd32z_f64,
>      vrnd32zq_f64, vrnd32x_f32, vrnd32xq_f32, vrnd32x_f64, vrnd32xq_f64,
>      vrnd64z_f32, vrnd64zq_f32, vrnd64z_f64, vrnd64zq_f64, vrnd64x_f32,
>      vrnd64xq_f32, vrnd64x_f64, vrnd64xq_f64): Define.
>      * config/aarch64/iterators.md (VSFDF): Define.
>      (FRINTNZX): Likewise.
>      (frintnzs_op): Likewise.
>
> 2019-09-02  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
>
>      * gcc.target/aarch64/acle/rintnzx_1.c: New test.
>      * gcc.target/aarch64/simd/vrndnzx_1.c: Likewise.