Re: [DF] [performance] generate DF_REF_BASE REFs in REGNO order

[Kenneth Zadeck <zadeck at naturalbridge dot com>]

were these tested on any platform aside from x86?

On 07/29/2011 01:26 PM, Paolo Bonzini wrote:
> On 07/29/2011 07:23 PM, Dimitrios Apostolou wrote:
> > 2011-07-29  Dimitrios Apostolou <jimis@gmx.net>
> >              Paolo Bonzini <bonzini@gnu.org>
> >
> >          (df_def_record_1): Assert a parallel must contain an 
> > EXPR_LIST at
> >      this point.  Receive the LOC and move its extraction...
> >          (df_defs_record): ... here. Rewrote logic with a switch 
> > statement
> >      instead of multiple if-else.
> >      (df_find_hard_reg_defs, df_find_hard_reg_defs_1): New functions
> >      that duplicate the logic of df_defs_record() and df_def_record_1()
> >      but without actually recording any DEFs, only marking them in
> >      the defs HARD_REG_SET.
> >      (df_get_call_refs): Call df_find_hard_reg_defs() to mark DEFs that
> >      are the result of the call. Record DF_REF_BASE DEFs in REGNO
> >      order. Use regs_invalidated_by_call HARD_REG_SET instead of
> >      regs_invalidated_by_call_regset bitmap.
> >      (df_insn_refs_collect): Record DF_REF_REGULAR DEFs after
> >      df_get_call_refs().
>
> Ok for mainline.  I will commit it for you after rebootstrapping (just 
> to be safe).
>
> > P.S. maraz: that's 4.3% improvement in instruction count, should you 
> > start worrying or is it too late?
>
> Now I'm curious!
>
> Paolo