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Re: [PATCH v2][AArch32][NEON] Implementing vmaxnmQ_ST and vminnmQ_ST intrinsincs.


Hi Tamar,

On 26/10/16 16:01, Tamar Christina wrote:
Hi Christophe,

Here's the updated patch.

Cheers,
Tamar
________________________________________
From: Christophe Lyon <christophe.lyon@linaro.org>
Sent: Wednesday, October 19, 2016 11:23:56 AM
To: Tamar Christina
Cc: GCC Patches; Kyrylo Tkachov; nd
Subject: Re: [PATCH v2][AArch32][NEON] Implementing vmaxnmQ_ST and vminnmQ_ST intrinsincs.

On 19 October 2016 at 11:36, Tamar Christina <Tamar.Christina@arm.com> wrote:
Hi All,

This patch implements the vmaxnmQ_ST and vminnmQ_ST intrinsics. The
current builtin registration code is deficient since it can't access
standard pattern names, to which vmaxnmQ_ST and vminnmQ_ST map
directly. Thus, to enable the vectoriser to have access to these
intrinsics, we implement them using builtin functions, which we
expand to the proper standard pattern using a define_expand.

This patch also implements the __ARM_FEATURE_NUMERIC_MAXMIN macro,
which is defined when __ARM_ARCH >= 8, and which enables the
intrinsics.

Regression tested on arm-none-eabi and no regressions.

This patch is a rework of a previous patch:
https://gcc.gnu.org/ml/gcc-patches/2015-12/msg01971.html

OK for trunk?

Ok.
Thanks,
Kyrill

Thanks,
Tamar

---

gcc/

2016-10-19  Bilyan Borisov  <bilyan.borisov@arm.com>
             Tamar Christina <tamar.christina@arm.com>

         * config/arm/arm-c.c (arm_cpu_builtins): New macro definition.
         * config/arm/arm_neon.h (vmaxnm_f32): New intrinsinc.
         (vmaxnmq_f32): Likewise.
         (vminnm_f32): Likewise.
         (vminnmq_f32): Likewise.
         * config/arm/arm_neon_builtins.def (vmaxnm): New builtin.
         (vminnm): Likewise.
         * config/arm/neon.md (neon_<fmaxmin_op><mode>, VCVTF): New
         expander.

gcc/testsuite/

2016-10-19  Bilyan Borisov  <bilyan.borisov@arm.com>

         * gcc.target/arm/simd/vmaxnm_f32_1.c: New.
         * gcc.target/arm/simd/vmaxnmq_f32_1.c: Likewise.
         * gcc.target/arm/simd/vminnm_f32_1.c: Likewise.
         * gcc.target/arm/simd/vminnmq_f32_1.c: Likewise.

I think you forgot to attach the new tests.

Christophe



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