Craig Topper 4e04a535d8 [TableGen] Avoid a couple vector copies in ExpandHwModeBasedTypes. ...

Use vector::swap instead of copying to a local vector and clearing
the original. We can just swap into the just created local vector
instead which will move the pointers and not the data.

Use std::move in another place to avoid a copy.

2021-01-30 13:16:39 -08:00

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