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Re: [PATCH, Atom] Improve AGU stalls avoidance optimization
On Tue, Sep 6, 2011 at 2:26 PM, Ilya Enkovich <enkovich.gnu@gmail.com> wrote:
> Is fixed version OK?
>
> Thanks,
> Ilya
> ---
> gcc/
>
> 2011-09-06 ?Enkovich Ilya ?<ilya.enkovich@intel.com>
>
> ? ? ? ?* config/i386/i386-protos.h (ix86_lea_outperforms): New.
> ? ? ? ?(ix86_avoid_lea_for_add): Likewise.
> ? ? ? ?(ix86_avoid_lea_for_addr): Likewise.
> ? ? ? ?(ix86_split_lea_for_addr): Likewise.
>
> ? ? ? ?* config/i386/i386.c (LEA_MAX_STALL): New.
> ? ? ? ?(increase_distance): Likewise.
> ? ? ? ?(insn_defines_reg): Likewise.
> ? ? ? ?(insn_uses_reg_mem): Likewise.
> ? ? ? ?(distance_non_agu_define_in_bb): Likewise.
> ? ? ? ?(distance_agu_use_in_bb): Likewise.
> ? ? ? ?(ix86_lea_outperforms): Likewise.
> ? ? ? ?(ix86_ok_to_clobber_flags): Likewise.
> ? ? ? ?(ix86_avoid_lea_for_add): Likewise.
> ? ? ? ?(ix86_avoid_lea_for_addr): Likewise.
> ? ? ? ?(ix86_split_lea_for_addr): Likewise.
> ? ? ? ?(distance_non_agu_define): Search in pred BBs added.
> ? ? ? ?(distance_agu_use): Search in succ BBs added.
> ? ? ? ?(IX86_LEA_PRIORITY): Value changed from 2 to 0.
> ? ? ? ?(LEA_SEARCH_THRESHOLD): Now depends on LEA_MAX_STALL.
> ? ? ? ?(ix86_lea_for_add_ok): Use ix86_lea_outperforms to make decision.
>
> ? ? ? ?* config/i386/i386.md: Splits added to transform lea into a
> ? ? ? ?sequence of instructions.
Please merge your new splitters with corresponding LEA patterns.
OK with this change.
Thanks,
Uros.