This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/20963] [4.0/4.1 Regression] ICE tree check: expected value_handle, have addr_expr in value_exists_in_set_bitmap, at tree-ssa-pre.c:437
- From: "dberlin at dberlin dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Apr 2005 13:26:44 -0000
- Subject: [Bug tree-optimization/20963] [4.0/4.1 Regression] ICE tree check: expected value_handle, have addr_expr in value_exists_in_set_bitmap, at tree-ssa-pre.c:437
- References: <20050412082952.20963.marcus@jet.franken.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dberlin at gcc dot gnu dot org 2005-04-12 13:26 -------
Subject: Re: [4.0/4.1 Regression] ICE tree
check: expected value_handle, have addr_expr in value_exists_in_set_bitmap,
at tree-ssa-pre.c:437
On Tue, 2005-04-12 at 09:56 +0000, steven at gcc dot gnu dot org wrote:
> ------- Additional Comments From steven at gcc dot gnu dot org 2005-04-12 09:56 -------
> In addition to ICEing, PRE is also being stupid about moving out a
> loop invariant expression:
>
> Found partial redundancy for expression (char *) &0B->type
> Skipping insertion of phi for partial redundancy: Looks like an induction
> variable
>
This means nothing.
If it's really loop invariant, it will still be eliminated anyway (and
show up on the eliminated list) because the outside the loop expression
it *does* insert will have the right value to replace the
inside-the-loop version.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20963