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On Wed, 2004-08-11 at 15:49, Dale Johannesen wrote:
Did this also fix mesa? I don't like this approach, the types are compatible and the renaming ought to be done. Leaving extra copies around in these cases could be a significant performance hit.
This is not a problem in copy propagation. It's in the copy renamer, where we try and coalesce several variables to the same root. Which is a way of preserving user variables as much as possible.
This is something that I expect to trigger very rarely.
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