[PATCH] D131775: [GVN] Pre-commit test case showing miscompile in github issue #57025

[Bjorn Pettersson via Phabricator via llvm-commits]

bjope created this revision.
bjope added reviewers: nikic, fhahn.
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This commit adds a reproducer for

  https://github.com/llvm/llvm-project/issues/57025

showing a miscompile in GVN.

Not sure how likely this kind of faults would be in a normal pipeline,
considering that the input IR has some dead code in it. On the other
hand, GVN itself sometimes creates dead basic blocks when splitting
critical edges. Anyway, the fault was found when doing fuzzy testing
using random pass pipelines.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D131775

Files:
  llvm/test/Transforms/GVN/memdep-unknown-deadblocks.ll

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