[PATCH] D138950: [InstCombine] Revert D125845

[William Junda Huang via Phabricator via llvm-commits]

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Reverting D125845 <https://reviews.llvm.org/D125845> `[InstCombine] Canonicalize GEP of GEP by swapping constant-indexed GEP to the back` because multiple users reported performance regression


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D138950

Files:
  llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
  llvm/test/Transforms/InstCombine/gep-canonicalize-constant-indices.ll
  llvm/test/Transforms/InstCombine/gep-merge-constant-indices.ll
  llvm/test/Transforms/InstCombine/shift.ll
  llvm/test/Transforms/LoopVectorize/AArch64/vector-reverse-mask4.ll
  llvm/test/Transforms/LoopVectorize/interleaved-accesses.ll
  llvm/test/Transforms/PhaseOrdering/single-iteration-loop-sroa.ll

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