llvm-project

e093109e - [InstrRef][NFC] Avoid another DenseMap, use a sorted vector (#99051)

[InstrRef][NFC] Avoid another DenseMap, use a sorted vector (#99051) When resolving value-numbers to specific machine locations in the final stages of LiveDebugValues, we've been producing a DenseMap containing all the value-numbers we're interested in. However we never modify the map keys as they're all pre-known. Thus, this is a suitable collection to switch to a sorted vector that gets searched, rather than a DenseMap that gets probed. The overall operation of LiveDebugValues isn't affected at all.