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

[Akshay Deodhar via llvm-commits]

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

The python script does not run as a part of the testsuite- it merely is the script used for generating the unreasonably large test files :) 

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