Jinsong Ji 9dc2c1d564 Set useful flags for vector imm setting instructions ...

Vector imm setting instructions like XXLXORz/XXLXORspz/XXLXORdpz
Should behave like LI8.

We should set corresponding flags to allow rematerialization and other
opts in LICM, RA, Scheduling etc.

Differential Revision: https://reviews.llvm.org/D58645

llvm-svn: 355948

2019-03-12 18:27:09 +00:00

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