Alina Sbirlea 172838df6b [MemorySSA] Set LoopSimplify to preserve MemorySSA in the NPM, if analysis exists. ...

Summary:
LoopSimplify is preserved in the legacy pass manager, but not in the new pass manager.
Update LoopSimplify to preserve MemorySSA conditionally when the analysis is available (same behavior as the legacy pass manager).

Reviewers: chandlerc

Subscribers: mehdi_amini, jlebar, Prazek, george.burgess.iv, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65418

llvm-svn: 367594

2019-08-01 18:28:28 +00:00

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