Fixing m68hc11 reorg after dataflow merge

[Seongbae Park (박성배, 朴成培)]

On 6/16/07, Rask Ingemann Lambertsen <rask@sygehus.dk> wrote:
>    I need some help making m68hc11_reorg() work after the dataflow merge, in
> particular this bit:
>
>   /* Re-create the REG_DEAD notes.  These notes are used in the machine
>      description to use the best assembly directives.  */
>   if (optimize)
>     {
>       /* Before recomputing the REG_DEAD notes, remove all of them.
>          This is necessary because the reload_cse_regs() pass can
>          have replaced some (MEM) with a register.  In that case,
>          the REG_DEAD that could exist for that register may become
>          wrong.  */
>       for (insn = first; insn; insn = NEXT_INSN (insn))
>         {
>           if (INSN_P (insn))
>             {
>               rtx *pnote;
>
>               pnote = &REG_NOTES (insn);
>               while (*pnote != 0)
>                 {
>                   if (REG_NOTE_KIND (*pnote) == REG_DEAD)
>                     *pnote = XEXP (*pnote, 1);
>                   else
>                     pnote = &XEXP (*pnote, 1);
>                 }
>             }
>         }
>
>       life_analysis (PROP_REG_INFO | PROP_DEATH_NOTES);
>     }
>
> --
> Rask Ingemann Lambertsen

Try:

df_note_add_problem ();
df_analyze ();
-- 
#pragma ident "Seongbae Park, compiler, http://seongbae.blogspot.com"