[PATCH PR45098, 7/10] Nowrap limits iterations

Zdenek Dvorak rakdver@kam.mff.cuni.cz
Sun Jun 12 01:17:00 GMT 2011


Hi,

> > I think a better fix would be to make the nb_iterations_upper_bound semantics
> > consistent with that of nb_iterations.  Let me try to do it, hopefully this should
> > be mostly mechanical,
> > 
> 
> This patch changes the semantics of nb_iterations_upper_bound and
> nb_iterations_estimate, to mean: the amount of latch executions.
> 
> That change is countered at all use sites, except for
> tree-ssa-loop-ivopts.c:may_eliminate_iv.
> 
> Passed x86_64 bootstrapping and reg-testing.
> 
> OK for trunk?

yes,

Zdenek



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