Jay Foad 20c0280733 [LiveIntervals] Repair subreg ranges in processTiedPairs ...

In TwoAddressInstructionPass::processTiedPairs, update subranges of the
live interval for RegB as well as the main range.

This is a small step towards switching TwoAddressInstructionPass over
from LiveVariables to LiveIntervals. Currently this path is only tested
if you explicitly enable -early-live-intervals.

Differential Revision: https://reviews.llvm.org/D110526

2021-09-28 08:10:16 +01:00

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