[PATCH] D130466: [LICM] - Opportunity for register promotion

[Shubham Narlawar via Phabricator via llvm-commits]

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Insert appropriate PHI node in LICM to hoist load.

This is draft patch to initiate discussion in aim of resolving #50537.


https://reviews.llvm.org/D130466

Files:
  llvm/lib/Transforms/Scalar/LICM.cpp
  llvm/test/Transforms/LICM/reg-promote.ll

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