[polly] r336425 - Update isl to isl-0.19-224-gce84a511

[Friedman, Eli via llvm-commits]

On 7/6/2018 2:00 AM, Tobias Grosser via llvm-commits wrote:
> Author: grosser
> Date: Fri Jul  6 02:00:26 2018
> New Revision: 336425
>
> URL: http://llvm.org/viewvc/llvm-project?rev=336425&view=rev
> Log:
> Update isl to isl-0.19-224-gce84a511
>
> This is a maintenance update. Besides many minor changes it ships two
> functions "isl_*_list_size" and "isl_*_list_get_at" which will allow us
> to simplify the iterator implementation in Polly.

Hi Tobias,

With this change, I'm seeing some internal testcases hit computeout 
limits which didn't hit them before (and take nearly twice as long in 
real time to execute if I bump up the limit).  Looks like it's caused by 
the change to  map_intersect_internal in isl_map.c (the new call to 
isl_map_plain_is_equal).  Do you know what that change is supposed to do?

-Eli

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