Re: RFA[powerpc]: patch to fix PR79916

[Alexander Monakov]

On Fri, 13 Apr 2018, Jakub Jelinek wrote:
>         if (reg_renumber[regno] >= 0)
>           regno = reg_renumber[regno];
>         else
>           regno = cl == NO_REGS ? -1 : ira_class_hard_regs[cl][1];
> or
>         regno = (reg_renumber[regno] >= 0
>                  ? reg_renumber[regno]
>                  : cl == NO_REGS ? -1 : ira_class_hard_regs[cl][1]);
> is better, the latter is perhaps more compact.

Here's another compact variant:

          regno = reg_renumber[regno];
          if (regno < 0)
            regno = cl == NO_REGS ? -1 : ira_class_hard_regs[cl][1];

Alexander