[Bug tree-optimization/24001] Simple redundancy not eliminated

2016-07-12 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24001 Bug 24001 depends on bug 23286, which changed state. Bug 23286 Summary: Missed code hoisting optimization https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23286 What|Removed |Added --

[Bug tree-optimization/24001] Simple redundancy not eliminated

2012-02-07 Thread pinskia at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24001 Andrew Pinski changed: What|Removed |Added Status|NEW |RESOLVED Resolution|

[Bug tree-optimization/24001] Simple redundancy not eliminated

2007-10-16 Thread steven at gcc dot gnu dot org
--- Comment #7 from steven at gcc dot gnu dot org 2007-10-16 13:32 --- I would expect that tail merging (cross-jumping in gcc jargon) would merge the two paths. Better yet would be to optimize this earlier, and for that we need code hoisting (re. comment #1, I think it is eliminated bec

[Bug tree-optimization/24001] Simple redundancy not eliminated

2006-01-03 Thread dberlin at gcc dot gnu dot org
--- Comment #6 from dberlin at gcc dot gnu dot org 2006-01-03 18:39 --- You are confused about what load PRE does. It will not lift these load because it is not partially redundant. You are looking for some sort of generic code hoister. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?i

[Bug tree-optimization/24001] Simple redundancy not eliminated

2005-12-30 Thread pinskia at gcc dot gnu dot org
--- Comment #5 from pinskia at gcc dot gnu dot org 2005-12-30 22:31 --- (In reply to comment #2) > load-pre should sink the load and fix the problem at the tree level. Lift the load above as it is fully redundant. -- pinskia at gcc dot gnu dot org changed: What|Remov

[Bug tree-optimization/24001] Simple redundancy not eliminated

2005-09-24 Thread pinskia at gcc dot gnu dot org
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-25 04:31 --- Confirmed, on most targets (ppc and x86 at least) this is done at the rtl level, I don't know why it is not done for alpha. -- What|Removed |Added -

[Bug tree-optimization/24001] Simple redundancy not eliminated

2005-09-22 Thread dberlin at dberlin dot org
--- Additional Comments From dberlin at gcc dot gnu dot org 2005-09-22 18:40 --- Subject: Re: Simple redundancy not eliminated On Thu, 2005-09-22 at 08:31 +, rguenth at gcc dot gnu dot org wrote: > --- Additional Comments From rguenth at gcc dot gnu dot org 2005-09-22 > 08:31

Re: [Bug tree-optimization/24001] Simple redundancy not eliminated

2005-09-22 Thread Daniel Berlin
On Thu, 2005-09-22 at 08:31 +, rguenth at gcc dot gnu dot org wrote: > --- Additional Comments From rguenth at gcc dot gnu dot org 2005-09-22 > 08:31 --- > load-pre should sink the load and fix the problem at the tree level. Uh, load PRE doesn't sink loads, it would lift it.

[Bug tree-optimization/24001] Simple redundancy not eliminated

2005-09-22 Thread rguenth at gcc dot gnu dot org
--- Additional Comments From rguenth at gcc dot gnu dot org 2005-09-22 08:31 --- load-pre should sink the load and fix the problem at the tree level. GCSE does it at rtl level for both -O2 and -Os on i686, so maybe costs on alpha are weird enough to prevent it from doing its work at -O2

[Bug tree-optimization/24001] Simple redundancy not eliminated

2005-09-21 Thread pinskia at gcc dot gnu dot org
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-21 16:32 --- Try with -Os and you will see it is eliminated. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24001