Alina Sbirlea 24ae5ce54b [MemorySSA] Update Phi creation when inserting a Def. ...

MemoryPhis should be added in the IDF of the blocks newly gaining Defs.
This includes the blocks that gained a Phi and the block gaining a Def,
if the block did not have one before.
Resolves PR43427.

llvm-svn: 373505

2019-10-02 18:42:33 +00:00

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