[Bug rtl-optimization/59999] [4.9 Regression] Sign extension in loop regression blocks generation of zero overhead loop

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59999

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |missed-optimization
          Component|tree-optimization           |rtl-optimization

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes, I think that the IV choice merely shows that we miss to optimize the
extension - which would be somewhere in the RTL opt pipeline.