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From: "Wilco Dijkstra" <wdijkstr@arm.com>
To: "'Marcus Shawcroft'" <marcus.shawcroft@gmail.com>
Cc: "GCC Patches" <gcc-patches@gcc.gnu.org>
References: <000401d080f0$16a78c90$43f6a5b0$@com> <CAFqB+PzAUb=bFjhRpQwD9WaFfnL-jVuvUaRqig=khKP2oeffPQ@mail.gmail.com>
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Subject: RE: [PATCH][AArch64] Make aarch64_min_divisions_for_recip_mul configurable
Date: Fri, 01 May 2015 11:26:00 -0000
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> Marcus Shawcroft wrote:
> On 27 April 2015 at 14:43, Wilco Dijkstra <wdijkstr@arm.com> wrote:
>=20
> >>  static unsigned int
> >> -aarch64_min_divisions_for_recip_mul (enum machine_mode mode ATTRIBUTE=
_UNUSED)
> >> +aarch64_min_divisions_for_recip_mul (enum machine_mode mode)
> >>  {
> >> -  return 2;
> >> +  if (GET_MODE_UNIT_SIZE (mode) =3D=3D 4)
> >> +    return aarch64_tune_params->min_div_recip_mul_sf;
> >> +  return aarch64_tune_params->min_div_recip_mul_df;
>=20
> This should be expressed directly as mode =3D=3D SFmode (or DFmode) rather
> than the indirect approach of first computing the size first.

Can we never see vector types at this point?

Wilco