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Re: [PATCH][1/2] Fix PR44688, set and preserve the maximum iterations of vectorizer prologue loops


On Wed, Apr 18, 2012 at 4:30 AM, Richard Guenther <rguenther@suse.de> wrote:
>
> Finally.
>
> Boostrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
>
> Richard.
>
> 2012-04-18 ?Richard Guenther ?<rguenther@suse.de>
>
> ? ? ? ?PR tree-optimization/44688
> ? ? ? ?* cfgloop.h (record_niter_bound): Declare.
> ? ? ? ?* tree-ssa-loop-niter.c (record_niter_bound): Export.
> ? ? ? ?Update the estimation with the upper bound here...
> ? ? ? ?(estimate_numbers_of_iterations_loop): ... instead of here.
> ? ? ? ?Do not forcefully reset a recorded upper bound.
> ? ? ? ?* tree-vect-loop-manip.c (vect_do_peeling_for_alignment):
> ? ? ? ?Record the maximum number of loop iterations of the
> ? ? ? ?prologue loop.
>

This caused:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53047

-- 
H.J.


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