On 12/13/06, Grigory Zagorodnev <[EMAIL PROTECTED]> wrote:
Meissner, Michael wrote:
>>> 437.leslie3d -26%
> it was felt that the PPRE patches that were added on November 13th were
> the cause of the slowdown:
> http://gcc.gnu.org/ml/gcc/2006-12/msg00023.html
>
> Has anybody tried doing a run with just ppre disabled?
>
Right. PPRE appears to be the reason of slowdown.
-fno-tree-pre gets performance of cpu2006/437.leslie3d back to normal.
This is the worst case. And that will take much longer to verify whole
set of cpu2006 benchmarks.
It would be sooo nice to have a (small) testcase that shows why we are
regressing.
Thanks!
Richard.
