https://bugs.freedesktop.org/show_bug.cgi?id=101560
--- Comment #2 from Jason Ekstrand <ja...@jlekstrand.net> ---
Ugh... I guess I didn't read the language on OpSwitch all that carefully the
first time around. This is going to be exceedingly painful to do correctly.
In order to know the number of switch cases, we have to know the bit size of
the selector. However, we need to know the switch cases early when we do the
initial CFG walk and, at that point, we haven't processed any instructions
other than control-flow so we have no way to know the bit size of the selector.
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