This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

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

On 6/1/07, H. J. Lu <hjl@lucon.org> wrote: 
On Fri, Jun 01, 2007 at 09:55:53AM -0700, Andrew Pinski wrote:
>
> 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 idea, you have to look into why the miscompiling is happening, are
you sure that the program does not violate C/C++ aliasing rules?

Thanks,
Andrew Pinski

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]