[0/3] Fix PR78120, in ifcvt/rtlanal/i386.

[Eric Botcazou]

>  From my investigations on the m68k, the effects on the IL are minimal
> with a slight bias towards better code (by suppressing if-conversions of
> some now more costly blocks).  *But* the size of the resulting code was
> all over the place -- sometimes it was better, others worse.  From
> looking at the assembly we seemingly are copying blocks that aren't
> strictly necessary.

I'm seeing essentially the same thing on SPARC, probably because of the ifcvt 
change; the rtlanal change seems to be neutral for the architecture.

-- 
Eric Botcazou