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Re: Predictive commoning miscompiles 482.sphinx3 in SPEC CPU 2006

On Fri, Jun 01, 2007 at 10:30:52PM +0200, Zdenek Dvorak wrote:
> Hello,
> 
> > > Because the patch had other effects like adding a DCE after Copyprop
> > > in the loop optimizer section.
> > > 
> > 
> > Disable DCE after Copyprop in the loop optimizer section fixes my
> > problem. Any idea why?
> 
> no, not really; it could be anything (it may even have nothing to do
> with dce, performing dce can enable/alter other loop transformations).

I opened a bug report:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32183


H.J.
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