[Bug target/34163] 10% performance regression since Nov 1 on Polyhedron's "NF" on AMD64

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2008-04-22 18:14 -------
(In reply to comment #3)
> [1] http://gcc.gnu.org/viewcvs?view=rev&revision=129796

It was a correctness fix, which usually will slow down generated code. :)

So you have to look at the difference to make sure that the code generated
before was actually producing no overflows.

Thanks,
Andrew Pinski


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34163