[Bug target/32086] [4.3 Regression] 10% to 20% Performance Regression Between 4.1.3 and 4.3

[ubizjak at gmail dot com]

------- Comment #3 from ubizjak at gmail dot com  2007-11-30 06:42 -------
(In reply to comment #1)

> w/ -fvect-cost-model:
> user    0m46.439s

Looking a bit into generated code, it looks that -fect-cost-model effectively
disables all interesting vectorizations, effectively -fno-tree-vectorize.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32086