Auto merge of #137058 - scottmcm:trunc-unchecked, r=nikic

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Emit `trunc nuw` for unchecked shifts and `to_immediate_scalar`

- For shifts this shrinks the IR by no longer needing an `assume` while still providing the UB information
- Having this on the `i8`→`i1` truncations will hopefully help with some places that have to load `i8`s or pass those in LLVM structs without range information

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bors 2025-02-20 09:05:22 +00:00

parent f20e0e7a64 654035f6c9

commit bce0daaade

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