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[Bug tree-optimization/20803] Pseudo-infinite recursion in ivopts
- From: "dberlin at dberlin dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Apr 2005 00:20:49 -0000
- Subject: [Bug tree-optimization/20803] Pseudo-infinite recursion in ivopts
- References: <20050407001639.20803.dalej@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dberlin at gcc dot gnu dot org 2005-04-07 00:20 -------
Subject: Re: New: Pseudo-infinite recursion
in ivopts
On Thu, 2005-04-07 at 00:16 +0000, dalej at gcc dot gnu dot org wrote:
> Compile the following with -O1 in 4.0 branch. Don't be in a hurry; I killed it
> after 10 minutes, but I'm told it goes for hours.
> With -fno-ivopts added it completes almost immediately. The recursion is
> in instantiate_parameters_1 called from simple_iv.
One of the patches that went into 4.1 for this problem probably needs to
be backported.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20803