CAN_ELIMINATE question

[Ian Lance Taylor]

Denis Chertykov <denisc@overta.ru> writes:

> > > I think that better to call update_eliminables() somewhere after
> > > setup_save_areas()
> > 
> > Exactly.  We do that.  About 15 lines after the lines you quoted
> > above.
> > 
> > What am I missing?
> 
> I'm (exactly AVR port) need in call to update_eliminables() somewhere
> between setup_save_areas() and calculate_needs_all_insns()
> (Not "about 15 lines after" ;) because all bad things happened inside
> calculate_needs_all_insns(). 
> 
> calculate_needs_all_insns() collect wrong reloads because
> reg_eliminate structure for FP->SP have wrong can_eliminate field.

But then we go around the loop again, so everything should get
recalculated based on the new assumptions.  Doesn't that happen for
you?

Ian