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[Bug tree-optimization/32044] [4.3/4.4 Regression] final value replacement too aggressive for e.g. targets with no native div/mod insns
- From: "rakdver at kam dot mff dot cuni dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Dec 2008 18:15:06 -0000
- Subject: [Bug tree-optimization/32044] [4.3/4.4 Regression] final value replacement too aggressive for e.g. targets with no native div/mod insns
- References: <bug-32044-11706@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #53 from rakdver at kam dot mff dot cuni dot cz 2008-12-10 18:15 -------
Subject: Re: [4.3/4.4 regression] udivdi3 counterproductive, unwarranted use
Hi,
> Re. comment #16:
> Zdenek, do you remember which revision / patch removed the cost check?
rev. 122896
> And do
> you recall (or can you recover) some of the missed-optimization bug report
> numbers? I tried to find them with a Bugzilla query, but failed.
No; the PRs addressed by that patch seem unrelated.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32044