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Re: optimization/7120: Run once loop should *always* be unrolled
- From: Alan Modra <amodra at bigpond dot net dot au>
- To: davem at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, nobody at gcc dot gnu dot org, rth at twiddle dot net, rusty at rustcorp dot com dot au, gcc-gnats at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
- Date: Wed, 26 Jun 2002 13:17:00 +0930
- Subject: Re: optimization/7120: Run once loop should *always* be unrolled
- References: <20020625162132.31801.qmail@sources.redhat.com> <20020626032456.GR22093@bubble.sa.bigpond.net.au>
On Wed, Jun 26, 2002 at 12:54:56PM +0930, Alan Modra wrote:
> On Tue, Jun 25, 2002 at 04:21:32PM -0000, davem@gcc.gnu.org wrote:
> > Synopsis: Run once loop should *always* be unrolled
>
> This patch cures the problem. bootstrap i686-linux in progress.
>
> * unroll.c (loop_iterations): Handle EQ loops.
Bah, that's too simplistic. Patch withdrawn.
--
Alan Modra
IBM OzLabs - Linux Technology Centre