[Bug tree-optimization/66522] handle casts in nr of iterations in try_transform_to_exit_first_loop_alt

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66522

vries at gcc dot gnu.org changed:

           What    |Removed                     |Added
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           Keywords|                            |missed-optimization, patch

--- Comment #2 from vries at gcc dot gnu.org ---
https://gcc.gnu.org/ml/gcc-patches/2015-06/msg00965.html