[Bug ipa/60243] IPA is slow on large cgraph tree

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60243

--- Comment #20 from rguenther at suse dot de <rguenther at suse dot de> ---
On Sun, 19 Nov 2017, hubicka at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60243
> 
> --- Comment #19 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
> Author: hubicka
> Date: Sun Nov 19 18:55:30 2017
> New Revision: 254934
> 
> URL: https://gcc.gnu.org/viewcvs?rev=254934&root=gcc&view=rev
> Log:
>         PR ipa/60243
>         * tree-inline.c (estimate_num_insns): Set to 1 at least.
> 
> Modified:
>     trunk/gcc/ChangeLog
>     trunk/gcc/tree-inline.c

While this fixes the new regression the appearant IPA SRA quadraticness
remains.

I'll add the testcase to our "random" set of testcases in the C++ bench.