[PATCH] D48488: [SLPVectorizer] Support alternate opcodes in tryToVectorizeList

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon created this revision.
RKSimon added reviewers: ABataev, dtemirbulatov, spatel, fhahn, javed.absar.

Enable tryToVectorizeList to support InstructionsState alternate opcode patterns at a root (build vector etc.) as well as further down the vectorization tree.

This patch currently reduces some of the debug reporting if there are opcode mismatches - is this something I need to address? It could get rather messy trying to provide equivalent verbose debug strings via getSameOpcode etc.


Repository:
  rL LLVM

https://reviews.llvm.org/D48488

Files:
  lib/Transforms/Vectorize/SLPVectorizer.cpp
  test/Transforms/SLPVectorizer/X86/alternate-fp.ll
  test/Transforms/SLPVectorizer/X86/alternate-int.ll
  test/Transforms/SLPVectorizer/X86/remark_not_all_parts.ll
  test/Transforms/SLPVectorizer/X86/resched.ll

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