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Re: PTR-PLUS merge into the mainline
On Fri, 6 Jul 2007, Roman Zippel wrote:
> Hi,
>
> On Thu, 5 Jul 2007, Richard Guenther wrote:
>
> > For me both canonicalizations generate
> >
> > movl 8(%ecx,%edx,4), %eax
> > addl 4(%ecx,%edx,4), %eax
>
> Hmm, there seem to be other problems in this area as well.
> Either add a "p[i + 3]" to it to fool combine or try this:
>
> int g(void);
> void foo(int *p, unsigned int i)
> {
> p[i + 1] = g();
> p[i + 2] = g();
> }
Btw, is there a bug-report about the issue you are facing? Please
let's take this issue there.
Thanks,
Richard.