Michael Gottesman fced2398c5 [semantic-arc] Change LiveRange to work with Operand instead of Operand->getUser(). ...

This is just better information to have since one wants to not only know the
instruction, but also the specific value used on the instruction since behavior
can vary depending upon that. The operand is what ties the two together so it is
a natural fit.

Now that this is done, I am going to work on refactoring out converting a
LiveRange from @owned -> @guaranteed. It will be a consuming operation using a
move operator since once the transformation has completed, the LiveRange no
longer exists.

I need this refactored functionality since I am going to need it when
eliminating phi-webs.

2020-03-04 17:07:48 -08:00

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