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[Bug debug/54402] [4.8 Regression] var-tracking does not scale

From: "ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla at gcc dot gnu dot org>
To: gcc-bugs at gcc dot gnu dot org
Date: Mon, 21 Jan 2013 10:07:02 +0000
Subject: [Bug debug/54402] [4.8 Regression] var-tracking does not scale
Auto-submitted: auto-generated
References: <bug-54402-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402

--- Comment #29 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2013-01-21 10:07:02 UTC ---
> --- Comment #28 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2013-01-18
> 11:08:06 UTC ---
> Is the mem-clobbering compile-time regression still noticeable after the recent
> patch?

I can't tell how the timings were before, but here's what I find for my
testcase:

* with -fno-var-tracking-assignments

real        3:58.44

* without:

real       18:52.73

which is an improvement from

real       24:03.27

before.

Thanks.
        Rainer

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