[PATCH] D98120: [InstCombine] Do not apply provenance losing operations on GEP

[Simonas Kazlauskas via Phabricator via llvm-commits]

nagisa added a comment.

I'm quite surprised this change didn't affect //any// pre-existing tests. It however, is sufficient to resolve one of a fairly easily hit mis-compiles in Rust <https://github.com/rust-lang/rust/issues/80309>.

(Side note: my understanding of this area of code is fairly limited, looking forward to learning something out of this)


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  https://reviews.llvm.org/D98120/new/

https://reviews.llvm.org/D98120