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Re: decrement_and_branch_until_zero pattern
- From: Andreas Schwab <schwab at linux-m68k dot org>
- To: Paul Koning <paulkoning at comcast dot net>
- Cc: GCC Development <gcc at gcc dot gnu dot org>
- Date: Fri, 08 Jun 2018 12:59:16 +0200
- Subject: Re: decrement_and_branch_until_zero pattern
- References: <40F210CF-1193-48F5-AA77-1AB93E6CA642@comcast.net>
On Jun 07 2018, Paul Koning <paulkoning@comcast.net> wrote:
> None of these seem to use that loop optimization, with -O2 or -Os. Did I
> miss some magic switch to turn on something else that isn't on by default?
> Or is this a feature that was broken long ago and not noticed? If so, any
> hints where I might look for a reason?
commit 7d3c6452d7
Author: rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Mar 2 23:50:55 2006 +0000
* loop.c: Removed.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111650 138bc75d-0d04-0410-961f-82ee72b054a4
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
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