[Bug tree-optimization/42027] [4.5 Regression] Performance regression in convolution loop optimization

[nbenoit at tuxfamily dot org]

------- Comment #3 from nbenoit at tuxfamily dot org  2009-11-26 15:08 -------
Using integer instead of double, the performance difference is even more
noticeable :

* with -O1
GCC 4.4.2               7475 ms
GCC-trunk-r154672       9390 ms


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42027