On 1/11/07, Grigory Zagorodnev <[EMAIL PROTECTED]> wrote:
Menezes, Evandro wrote:
> Though not as pronounced, definitely significant.
>
Using binary search I've detected that 30% performance regression of
cpu2006/437.leslie3d benchmark is caused by revision 117891.

http://gcc.gnu.org/viewcvs?view=rev&revision=117891

I assume same commit causes regression of all other benchmarks from
cpu2k6 suite (running others to confirm).
This only affects 4.2, and the only solution would be to try to
backport some of the 4.3 aliasing stuff to 4.2, which i'm not sure is
a great idea.

- Grigory

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