[PATCH] D125934: [InstCombine] Changing constant-indexed GEP of GEP to i8* for merging

[William Junda Huang via Phabricator via llvm-commits]

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When merging GEP of GEP with constant indices, if the second GEP's offset is not divisible by the first GEP's element size, convert both type to i8* and merge.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125934

Files:
  llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
  llvm/test/Transforms/InstCombine/gep-merge-constant-indices.ll
  llvm/test/Transforms/InstCombine/opaque-ptr.ll

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