Sander de Smalen 048fc2bc10 [LiveIntervals] Ignore artificial regs when adding kill flags (#116963) ...

If parts of a physical register for a given liverange, as assigned by
the register allocator, can be used to store other values not
represented by this liverange, then `LiveIntervals::addKillFlags`
normally avoids adding a kill flag on the use of this register
when the value's liverange ends.

However, if all the other regunits are artificial, then we can
still safely add the kill flag, since those parts of the register
can never be accessed independently.

2024-12-04 20:25:31 +00:00

68 KiB

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