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Re: [PATCH] Handle ADDR_EXPR in SCEV
On Wed, 24 Feb 2010, Richard Guenther wrote:
> > 3) I think the biggest problem is that for references in nested loops
> > (a[i][j]) we create an IV (&a + i*stride) that is live in the outer loop.
> > In bwaves, there are deeply nested loops with references to multiple arrays, so
> > updating such IVs on stack has impact on code size and performance.
>
> If you have a testcase showing this problem it would be nice to
> add it to the bug referencing your patch.
I have filed a new bug, PR43174, with a testcase, a short description of the
problem and a link to the patch in the mailing list archive.
Thanks.
Alexander Monakov