tree a792305df4263a09e137ac385fe5c6937dcf873f
parent 6c3a0ab51abda947c6b087d9dde92cef6dff8fe6
author Kazu Hirata <kazu@google.com> 1755581978 -0700
committer GitHub <noreply@github.com> 1755581978 -0700
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[ADT] Refactor SmallPtrSetImplBase::swap (NFC) (#154261)

SmallPtrSetImplBase::swap needs to deal with four cases depending on
whether LHS is small and whether RHS is small.  Now, the code to swap
small LHS and large RHS is symmetric with the code to swap large LHS
and small RHS.

This patch rearranges code so that we first take care of the case
where both LHS and RHS are small.  Then we compute references
SmallSide and LargeSide and actually swap the two instances.

This refactoing saves about 11 lines of code.  Note that
SmallDenseMap::swap also uses a similar trick.