[llvm] [NVPTX] Enable i128 support in the NVPTX backend (PR #98658)

[Joseph Huber via llvm-commits]

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@@ -0,0 +1,643 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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jhuber6 wrote:

I think it does both, since we do probably want to verify that it generates the appropriate shifts in PTX.

https://github.com/llvm/llvm-project/pull/98658