Re: regrename: don't update REG_DEAD notes

[Richard Henderson]

On 06/16/2011 08:25 AM, Hans-Peter Nilsson wrote:
>> +++ gcc/config/i386/i386.c   (working copy)
> 
> (Not a dbr target...)
> 
>> Ok?
> 
> NO!  They're still used by reorg.c+resource.c

Already handled:

rest_of_pass_free_cfg (void)
{
#ifdef DELAY_SLOTS
  /* The resource.c machinery uses DF but the CFG isn't guaranteed to be
     valid at that point so it would be too late to call df_analyze.  */
  if (optimize > 0 && flag_delayed_branch)
    {
      df_note_add_problem ();
      df_analyze ();
    }
#endif



r~