[llvm] [NVPTX] Use PTX prmt for llvm.bswap (PR #85545)

[Artem Belevich via llvm-commits]

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@@ -0,0 +1,54 @@
+; RUN: llc < %s -march=nvptx64 -mcpu=sm_20 | FileCheck %s
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Artem-B wrote:

Please use llvm/utils/update_test_checks.py to generate the checks. It makes it much easier to update them alter on.

https://github.com/llvm/llvm-project/pull/85545