[llvm] [NVPTX] Expand fp/int conversions involving integers wider than 64 bits (PR #201679)

[Lukas Stephan via llvm-commits]

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+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
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kulst wrote:

I don't think this is applicable here, since LLVM crashes when running my test before the functional changes. 

https://github.com/llvm/llvm-project/pull/201679