[llvm] [NVPTX] Add syncscope support for cmpxchg (PR #140812)

[Alex MacLean via llvm-commits]

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@@ -5,6 +5,14 @@
 from itertools import product
 
 cmpxchg_func = Template(
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AlexMaclean wrote:

The tests such as `llvm/test/CodeGen/NVPTX/cmpxchg-sm90.ll` seem to be getting unreasonably large. Can we instead extend this python script to cover those cases?

https://github.com/llvm/llvm-project/pull/140812