Nikita Popov 624af932a8 [MemCpyOpt] Port to MemorySSA ...

This is a straightforward port of MemCpyOpt to MemorySSA following
the approach of D26739. MemDep queries are replaced with MSSA queries
without changing the overall structure of the pass. Some care has
to be taken to account for differences between these APIs
(MemDep also returns reads, MSSA doesn't).

Differential Revision: https://reviews.llvm.org/D89207

2020-12-01 17:57:41 +01:00

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