[PATCH] D103514: [LV] Support sinking recipe in replicate region after another region.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: Ayal, gilr, rengolin.
Herald added a subscriber: hiraditya.
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Herald added a project: LLVM.

This patch handles sinking a replicate region after another replicate
region. In that case, we can connect the sink region after the target
region. This properly handles the case for which an assertion has been
added in 337d7652823f <https://reviews.llvm.org/rG337d7652823f59f4613552cebdf81292bf8f393d>.

Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34842.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103514

Files:
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll

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