[cairo] Special case simplification for edges_compare_x_for_y_general()

Chris Wilson chris at chris-wilson.co.uk
Mon Oct 6 05:03:01 PDT 2008

  Please can you look at the attached patch to speed up the 128bit
compare within edges_compare_x_for_y(). I don't propose to include it in
1.8 due to its complexity, but I'd appreciate a few more eyes looking
over it and seeing if it is as simple as it can be.
Chris Wilson
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