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GlobalISel: Consolidate load/store legalization

Description

GlobalISel: Consolidate load/store legalization

The fewerElementsVectors implementation for load/stores
handles the scalar reduction case just as well, so drop
the redundant code in narrowScalar. This also introduces
support for narrowing irregular size breakdowns for
scalars.

Details

Committed
arsenmFeb 4 2019, 4:26 PM
Parents
rL353124: [DAGCombiner] Discard pointer info when combining extract_vector_elt of a…
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