[Bug target/111600] [14 Regression] RISC-V bootstrap time regression

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111600

--- Comment #27 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 13 Oct 2023, rdapp at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111600
> 
> --- Comment #26 from Robin Dapp <rdapp at gcc dot gnu.org> ---
> So insn-opinit.cc still takes 2-3 minutes to compile here, even though the file
> is not gigantic.
> With the same GCC 13.1 x86 host compiler I see:
> 
>  phase opt and generate             : 170.28 ( 99%)   0.75 ( 48%) 171.43 ( 99%)
>   561M ( 60%)
>   callgraph functions expansion      :  35.04 ( 20%)   0.50 ( 32%)  35.65 (
> 21%)   356M ( 38%)
>  callgraph ipa passes               : 135.02 ( 79%)   0.24 ( 15%) 135.55 ( 78%)
>    96M ( 10%)
>  tree Early VRP                     : 127.83 ( 75%)   0.00 (  0%) 128.11 ( 74%)
>  3141k (  0%)
> 
> Would need to re-check if this still happens with a GCC 14 host compiler.  If
> so, that might be worth investigating as it seems pretty localized.

See PR111622