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2008 Feb 20
3
[LLVMdev] Bug? Coalescing & Updating Subreg Intervals
I have a question about what is going on at line 754 of
SimpleRegisterCoalescing.cpp. The comment says we are
updating the live intervals for subregisters. This happens when
we coalesce to a physical register.
Now, I read that as, "merge in the range information from the
eliminated live interval to the subregister live interval," but that
appears to not be what happens.
In my case,