On Mon, Jun 24, 2019 at 6:37 AM Richard Biener wrote:
>
> On Thu, 20 Jun 2019, Jan Hubicka wrote:
>
> > > > Currently, costs of moves are also used for costs of RTL expressions.
> > > > This
> > > > patch:
> > > >
> > > > https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00405.html
> > > >
> > > >
On Thu, 20 Jun 2019, Jan Hubicka wrote:
> > > Currently, costs of moves are also used for costs of RTL expressions.
> > > This
> > > patch:
> > >
> > > https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00405.html
> > >
> > > includes:
> > >
> > > diff --git a/gcc/config/i386/x86-tune-costs.h
> > >
> I opened:
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90952
>
> We shouldn't use costs for moves for costs of RTL expressions. We can
> experiment different RTL expression cost formulas. But we need to separate
> costs of RTL expressions from costs for moves first. What is the best w
On Thu, Jun 20, 2019 at 2:10 PM Jan Hubicka wrote:
>
> > > Currently, costs of moves are also used for costs of RTL expressions.
> > > This
> > > patch:
> > >
> > > https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00405.html
> > >
> > > includes:
> > >
> > > diff --git a/gcc/config/i386/x86-tune-c
> > Currently, costs of moves are also used for costs of RTL expressions. This
> > patch:
> >
> > https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00405.html
> >
> > includes:
> >
> > diff --git a/gcc/config/i386/x86-tune-costs.h
> > b/gcc/config/i386/x86-tune-costs.h
> > index e943d13..8409a5f 100
On Thu, Jun 20, 2019 at 5:19 PM H.J. Lu wrote:
>
> On Thu, Jun 20, 2019 at 12:43 AM Uros Bizjak wrote:
> >
> > On Thu, Jun 20, 2019 at 9:40 AM Uros Bizjak wrote:
> > >
> > > On Mon, Jun 17, 2019 at 6:27 PM H.J. Lu wrote:
> > > >
> > > > processor_costs has costs of RTL expressions and costs of
On Thu, Jun 20, 2019 at 12:43 AM Uros Bizjak wrote:
>
> On Thu, Jun 20, 2019 at 9:40 AM Uros Bizjak wrote:
> >
> > On Mon, Jun 17, 2019 at 6:27 PM H.J. Lu wrote:
> > >
> > > processor_costs has costs of RTL expressions and costs of moves:
> > >
> > > 1. Costs of RTL expressions is computed as CO
On Thu, Jun 20, 2019 at 9:40 AM Uros Bizjak wrote:
>
> On Mon, Jun 17, 2019 at 6:27 PM H.J. Lu wrote:
> >
> > processor_costs has costs of RTL expressions and costs of moves:
> >
> > 1. Costs of RTL expressions is computed as COSTS_N_INSNS which are used
> > to generate RTL expressions with the l
On Mon, Jun 17, 2019 at 6:27 PM H.J. Lu wrote:
>
> processor_costs has costs of RTL expressions and costs of moves:
>
> 1. Costs of RTL expressions is computed as COSTS_N_INSNS which are used
> to generate RTL expressions with the lowest costs. Costs of RTL memory
> operation can be very close to
uot;
Date: Fri, 14 Jun 2019 13:30:16 -0700
Subject: [PATCH] i386: Separate costs of RTL expressions from costs of moves
processor_costs has costs of RTL expressions and costs of moves:
1. Costs of RTL expressions is computed as COSTS_N_INSNS which are used
to generate RTL expressions with the lowest co
10 matches
Mail list logo
