Re: [PATCH] Adjust nb_iterations_upper_bound in loop header copying

2013-11-22 Thread Richard Biener
On Fri, 22 Nov 2013, Richard Sandiford wrote: > Richard Biener writes: > > This patch decrements nb_iterations_upper_bound by one after we copied > > the loop header. This allows niter + 1 to more often not overflow. > > > > Bootstrapped and tested on x86_64-unknown-linux-gnu, installed to trunk

Re: [PATCH] Adjust nb_iterations_upper_bound in loop header copying

2013-11-22 Thread Richard Sandiford
Richard Biener writes: > This patch decrements nb_iterations_upper_bound by one after we copied > the loop header. This allows niter + 1 to more often not overflow. > > Bootstrapped and tested on x86_64-unknown-linux-gnu, installed to trunk. > > Richard. > > 2013-11-21 Richard Biener > >

[PATCH] Adjust nb_iterations_upper_bound in loop header copying

2013-11-21 Thread Richard Biener
This patch decrements nb_iterations_upper_bound by one after we copied the loop header. This allows niter + 1 to more often not overflow. Bootstrapped and tested on x86_64-unknown-linux-gnu, installed to trunk. Richard. 2013-11-21 Richard Biener * tree-ssa-loop-ch.c (copy_loop_head