[PATCH] D113289: [WIP] LICM: Hoist LOAD without STORE

[Djordje Todorovic via Phabricator via llvm-commits]

djtodoro created this revision.
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This addresses some problems from [0]. Hoisting load when it is safe could be very useful for targets such as AARCH64. This is controlled by the option.

NOTE: This doesn't depend on the SeparateConstOffsetFromGEP, but the flag for this optimization will be enabled iff the SeparateConstOffsetFromGEP is active in the case of AARCH64 target, which is the goal arch for this stack of patches.

https://bugs.llvm.org/show_bug.cgi?id=51193


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113289

Files:
  llvm/include/llvm/Transforms/Utils/LoopUtils.h
  llvm/include/llvm/Transforms/Utils/SSAUpdater.h
  llvm/lib/Transforms/Scalar/LICM.cpp
  llvm/lib/Transforms/Utils/SSAUpdater.cpp
  llvm/test/Transforms/LICM/AArch64/hoist-load-without-store.ll

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