Philip Reames 70537abe52 Demanded elements support for masked.load and masked.gather ...

Teach instcombine to propagate demanded elements through a masked load or masked gather instruction. This is in the broader context of improving vector pointer instcombine under https://reviews.llvm.org/D57140.

Differential Revision: https://reviews.llvm.org/D57372

llvm-svn: 356510

2019-03-19 20:10:00 +00:00

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