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b62ff560b1
We were previously using the SelectT2AddrModeImm7 for both normal and narrowing MVE loads/stores. As the narrowing instructions do not accept sp as a register, it makes little sense to optimise a FrameIndex into the load, only to have to recover that later on. This adds a SelectTAddrModeImm7 which does not do that folding, and uses it for narrowing load/store patterns. Differential Revision: https://reviews.llvm.org/D67489 llvm-svn: 372134
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