[PATCH] D127726: [test][SimplifyCFG] Precommit test with GEP instructions

[Elena Lepilkina via Phabricator via llvm-commits]

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GEP instructions used in PHI node after sinking common code have same base pointer.

[SimplifyCFG] Don't sink common code if PHI node with some GEPs is created

Creating PHI node which contains elements from same entity got with GEP instructions doesn't allow later sink these GEP instructions on CodeGenPrepare phase.
This prevents generating offset addressing on such targets as RISC-V.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127726

Files:
  llvm/lib/Transforms/Utils/SimplifyCFG.cpp
  llvm/test/Transforms/SimplifyCFG/X86/sink-common-code.ll
  llvm/test/Transforms/SimplifyCFG/phi-with-geps-sink.ll

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