[PATCH] D45151: [LICM] Hoisting invariant.group loads

[Piotr Padlewski via Phabricator via llvm-commits]

Prazek created this revision.
Prazek added reviewers: sanjoy, dberlin, amharc, kuhar.

This patch introduce hoisting !invariant.group loads that
are guaranteed to execute when the loop is executed.  This way
we ain't gonna drop any metadata.  This is crucial as we don't know
yet if it is profitable to hoist !invariant.group loads speculatively.


Repository:
  rL LLVM

https://reviews.llvm.org/D45151

Files:
  lib/Transforms/Scalar/LICM.cpp
  test/Transforms/LICM/hoist-invariant-group-load.ll

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