[PATCH] D155472: [DAG] Attempt shl narrowing in SimplifyDemandedBits

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks added a comment.

this is causing check-clang failures in a x86-64 stage 2 build, e.g. `clang/test/Parser/cxx2b-lambdas.cpp`. it showed up on a bot and I managed to repro locally, so it's likely reproducible


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D155472/new/

https://reviews.llvm.org/D155472