tree 64cb260552c5bd6ce1f8b289f51bf6afc773adca
parent 989a927a5f0aa21745d560e77e9eb7c76682c117
author Ivan Frade <ifrade@google.com> 1573768587 -0800
committer Ivan Frade <ifrade@google.com> 1574374024 -0800

BitmappedReachabilityChecker: Use only one bitmap for the whole check

The checker is creating a new bitmap per branch leading to excessive
memory consumption. For the reachability check one bitmap with the
reachability of all branches aggregated is enough.

Build the reachability bitmap with a filter. The filter itself uses it
to emit only commits not reached before and the caller to check what
targets have been reached already.

BitmapCalculator is not required anymore.

Change-Id: Ic5c62f77fe0f188913215b7eaa51d849a9aae6a5
Signed-off-by: Ivan Frade <ifrade@google.com>