[PATCH IRA] save a bitmap check

[Zhouyi Zhou]

  Thanks Vladimir and Jeff for reviewing and doing performance tests for me.
  I am focusing on IRA in my off hours for years because it is
in the middle of compiler backend which doesn't depend on 
specific programming language nor application binary interface,
and is very delicate. 
  Hope I can be of more beneficial :-)

Cheers
Zhouyi


> -----Original Messages-----
> From: "Vladimir Makarov" <vmakarov@redhat.com>
> Sent Time: Thursday, June 25, 2015
> To: "Zhouyi Zhou" <yizhouzhou@ict.ac.cn>, gcc-patches@gcc.gnu.org
> Cc: 
> Subject: Re: [PATCH IRA] save a bitmap check
> 
> On 06/25/2015 11:08 AM, Vladimir Makarov wrote:
> > On 06/24/2015 05:54 AM, Zhouyi Zhou wrote:
> >> In function assign_hard_reg, checking the bit of conflict_a in
> >> consideration_allocno_bitmap is unneccesary, because when retry_p is
> >> false, conflicting objects are always inside of the same loop_node
> >> (this is ensured in function process_bb_node_lives which marks the
> >> living objects to death near the end of that function).
> >>
> >>
> >>
> >
> >
> >
> > Your email reminded me that I need to commit another your patch
> > which I promised to commit when GCC is on stage1.  I am going to do it 
> > today.
> >
> >
> Sorry, it looks like Jeff already did it in April.  So your previous 
> patch is already in the trunk.
> 
>