[PATCH] D105838: [GlobalOpt] Fix a miscompile when evaluating struct initializers.

[Jon Roelofs via Phabricator via llvm-commits]

jroelofs created this revision.
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The bug was that evaluateBitcastFromPtr attempts a narrowing to a struct's 0th element of a store that covers other elements. While this is okay on the load side, applying it to stores causes us to miss the writes to the additionally covered elements.

rdar://79503568


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105838

Files:
  llvm/lib/Transforms/Utils/Evaluator.cpp
  llvm/test/Transforms/GlobalOpt/store-struct-element.ll

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