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

[Aditya Nandakumar via Phabricator via llvm-commits]

aditya_nandakumar added a comment.

I attempted this in the past but abandoned it due to infinite loops in legalization like mentioned earlier. Constant folding during legalization seems okay as long as it operates on legal types (ie fold an operation of constants (which are already legal) to the same type.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89392/new/

https://reviews.llvm.org/D89392