[PATCH] D89392: [GlobalISel] Fold unary opcodes in CSEMIRBuilder

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

Automatically folding legalization artifacts makes me a bit nervous. What happens if you want to legalize a constant by widening, and the legalizer wants to insert the trunc from a widened constant?


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  https://reviews.llvm.org/D89392/new/

https://reviews.llvm.org/D89392