Richard Biener writes:
> This performs local re-computation of participating scalar stmts
> in BB vectorization subgraphs to allow precise computation of
> liveness of scalar stmts after vectorization and thus precise
> costing. This treats all extern defs as live but continues
> to optimisticall
This performs local re-computation of participating scalar stmts
in BB vectorization subgraphs to allow precise computation of
liveness of scalar stmts after vectorization and thus precise
costing. This treats all extern defs as live but continues
to optimistically handle scalar defs that we think
