[Bug tree-optimization/31873] missed optimization: we don't move "invariant casts" out of loops

[rakdver at gcc dot gnu dot org]

------- Comment #2 from rakdver at gcc dot gnu dot org  2007-05-09 11:10 -------
(In reply to comment #1)
> Does it do it if you specify --param lim-expensive=1?  Then it's just a cost
> issue.

no, lim won't do this transformation.  Store motion could probably be persuaded
to do it by a few changes, although I am not quite sure what is the benefit of
moving no-op casts out of the loop. 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31873