A prototype loop reverser for the scalarizer

Steven Bosscher stevenb.gcc@gmail.com
Sun Oct 8 18:45:00 GMT 2006


On 10/8/06, Daniel Berlin <dberlin@dberlin.org> wrote:
> Really, you shouldn't be reimplementing these loop transforms at
> another level, you should improve the existing infrastructure so it
> has the heuristics to do what you want.

This is total bollocks unless you can optimize away the additional
temporary and the copy-in&copy-out operations. I don't see _that_
happening any time soon.

Plus, there is much more detailed information readily available in the
front end than what the middle-end will be able to derive.

So it's only right to add these transformations in the Fortran front end.

Gr.
Steven



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