[PATCH] Fix PR48186

[Jakub Jelinek]

On Thu, Apr 04, 2013 at 04:29:34PM +0200, Marek Polacek wrote:
> On Thu, Apr 04, 2013 at 04:20:36PM +0200, Marek Polacek wrote:
> > On Thu, Apr 04, 2013 at 04:06:35PM +0200, Jakub Jelinek wrote:
> > > In this second hunk the division is done only for flag_guess_branch_prob,
> > > so shouldn't it be
> > >   if (flag_guess_branch_prob)
> > >     {
> > >       if (PARAM_VALUE (HOT_BB_FREQUENCY_FRACTION) == 0
> > > 	  || edge->frequency <= (CGRAPH_FREQ_BASE
> > > 				 / PARAM_VALUE (HOT_BB_FREQUENCY_FRACTION)))
> > > 	return false;
> > >     }
> > >   return true;
> > > instead?
> > 
> > Yeah, I guess so.  Thanks; fixed:
> 
> Now really.
> 
> 2013-04-04  Marek Polacek  <polacek@redhat.com>
> 
> 	PR tree-optimization/48186
> 	* predict.c (maybe_hot_frequency_p): Return false if
> 	HOT_BB_FREQUENCY_FRACTION is 0.
> 	(cgraph_maybe_hot_edge_p): Likewise.
> 
> 	* gcc.dg/pr48186.c: New test.

Ok, if it passes bootstrap/regtest.

	Jakub