Sam Parker 597811e7a7 [DAGCombiner] Reduce load widths of shifted masks ...

During combining, ReduceLoadWdith is used to combine AND nodes that
mask loads into narrow loads. This patch allows the mask to be a
shifted constant. This results in a narrow load which is then left
shifted to compensate for the new offset.

Differential Revision: https://reviews.llvm.org/D50432

llvm-svn: 340261

2018-08-21 10:26:59 +00:00

714 KiB

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