[clang] [flang] [llvm] [mlir] [NVPTX] Validate user-specified PTX version against SM version (PR #174834)

[Justin Fargnoli via llvm-commits]

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@@ -29,15 +29,20 @@
 
 namespace llvm {
 
+// FullSmVersion encoding: SM * 10 + ArchSuffixOffset
+// ArchSuffixOffset: 0 (base), 2 ('f'), 3 ('a')
+// e.g. sm_100 -> 1000, sm_100f -> 1002, sm_100a -> 1003
+
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justinfargnoli wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/174834