Actually, the right thing to do is to treat constants as normal values and
teach
the register allocator how to split constant ranges and rematerialize on
demand
without spilling. This is something that Jaro and Benedikt have thought
about
recently, and I think this is generally a cleaner way to approach the
problem
than the ad-hoc "EmitAsUses" approach which is just a brittle heuristic.
https://codereview.chromium.org/308313002/
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