On Wed, Oct 19, 2011 at 2:26 PM, Sergey Ostanevich <sergos....@gmail.com> wrote:
>> You can just change the default in processor_target_table.
>>
>> Uros.
>>
>
> Will it be applicable during optimizations for size? It will hurt,
> although not much (see PR).
Looking at the code, I'd say that we don't handle -Os in different way.
> New patch is below. Ok for trunk as obvious?
>
> Sergos
>
> 2011-10-19 Sergey Ostanevich <sergos....@gmail.com>
>
> * gcc/config/i386/i386.c (ix86_option_override_internal): use loop
> align by 16 bytes for Atom platform
Please update ChangeLog, like:
* gcc/config/i386/i386.c (processor_target_table): Change Atom
align_loop_max_skip to 15.
> diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
> index 2c53423..8c60086 100644
> --- a/gcc/config/i386/i386.c
> +++ b/gcc/config/i386/i386.c
> @@ -2596,7 +2596,7 @@ static const struct ptt
> processor_target_table[PROCESSOR_max] =
> {&bdver1_cost, 32, 24, 32, 7, 32},
> {&bdver2_cost, 32, 24, 32, 7, 32},
> {&btver1_cost, 32, 24, 32, 7, 32},
> - {&atom_cost, 16, 7, 16, 7, 16}
> + {&atom_cost, 16, 15, 16, 7, 16}
> };
OK.
Thanks,
Uros.
