Re: [Patch ARM] Allow auto-vectorizer to use vfma.

[Tobias Burnus <burnus at net-b dot de>]

Hi,

your patch broke bootstrapping here:

/home/tob/projects/gcc-git/gcc/gcc/doc//sourcebuild.texi:1537: Node 
`arm_neon_ok' previously defined at line 1532.

(Sorry for only complaining about those issues today.)

Tobias

On 09/11/2012 02:54 PM, Ramana Radhakrishnan wrote:
> Hi,
>
> This allows the auto-vectorizer to use vfma under Ofast or ffast-math.
> I have a follow-up patch which will add support for these from
> arm_neon.h as well before someone asks. It's being regression tested as
> we speak and that'll follow shortly.
>
> Tested on A15 silicon native with no regressions.
>
> Committed.
>
>
> regards,
> Ramana
>
>
>
> 2012-09-11  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
>          Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
>
>      * config/arm/neon.md (fma<VCVTF:mode>4): New pattern.
>      (*fmsub<VCVTF:mode>4): Likewise.
>      * doc/sourcebuild.texi (arm_neon_v2_ok, arm_neon_v2_hw):  Document it.
>
> 2012-09-11  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
>          Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
>
>      * gcc.target/arm/neon-vfma-1.c: New testcase.
>      * gcc.target/arm/neon-vfms-1.c: Likewise.
>      * gcc.target/arm/neon-vmla-1.c: Update test to use int instead
>      of float.
>      * gcc.target/arm/neon-vmls-1.c: Likewise.
>      * lib/target-supports.exp (add_options_for_arm_neonv2): New
>      function.
>      (check_effective_target_arm_neonv2_ok_nocache): Likewise.
>      (check_effective_target_arm_neonv2_ok): Likewise.
>      (check_effective_target_arm_neonv2_hw): Likewise.
>      (check_effective_target_arm_neonv2): Likewise.