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From: Jan Hubicka <hubicka@kam.mff.cuni.cz>
To: "aldyh at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: Re: [Bug tree-optimization/102943] [12 Regression] Jump threader
 compile-time hog with 521.wrf_r
Message-ID: <20211107185943.GE83757@kam.mff.cuni.cz>
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 <bug-102943-4-WLov1wVOnL@http.gcc.gnu.org/bugzilla/>
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> 
> This PR is still open, at least for slowdown in the threader with LTO.  The
> issue is ranger wide, so it may also cause slowdowns  on non-LTO builds for
> WRF, though I haven't checked.
I just wanted to record the fact somewhere since I was looking up the
revision range mostly to figure out if there was modref change that may
cause this.

Non-lto builds seems fine.  I suppose LTo is needed ot make bug enough
CFGs.  Thanks for looking into it.

Honza