Goodbye REG_LIVE_LENGTH

[Jeff Law]

On 03/29/2016 05:36 AM, Bernd Schmidt wrote:
> On 03/25/2016 11:00 PM, Alan Modra wrote:
>>> I'll also prepare a patch to delete REG_LIVE_LENGTH everywhere.
>>
>> Like this.  Bootstrapped and regression tested x86_64-linux.
>> OK for stage1?
>
> Oh wow that's a lot of stuff removed. Ok for this and the
> FREQ_CALLS_CROSSED patch.
Sweet.  I suspect much of this stuff went dead with the IRA merge or at 
least fainted at that point and died with LRA merge and/or regmove 
removal.  Good to see the cleanups.

jeff