https://codereview.chromium.org/949743002/diff/130001/src/compiler/liveness-analyzer.h
File src/compiler/liveness-analyzer.h (right):
https://codereview.chromium.org/949743002/diff/130001/src/compiler/liveness-analyzer.h#newcode21
src/compiler/liveness-analyzer.h:21: void RelaxFrameState(Node*
frame_state, ZoneVector<bool>* liveness);
Can we use a BitVector here and in the implementation. The space usage
of ZoneVector<bool> is probably not a big issue, but with BitVector it
will definitely be smaller, and we are already using BitVector in other
analyses like loop assignment analsysis.
https://codereview.chromium.org/949743002/
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