[llvm] [CHERI] Add enum values and LL parse/print support for CHERIoT calling conventions. (PR #156328)

[Nikita Popov via llvm-commits]

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@@ -287,6 +287,20 @@ namespace CallingConv {
     // Calling convention for AMDGPU whole wave functions.
     AMDGPU_Gfx_WholeWave = 124,
 
+    /// CHERIoT_CompartmentCall - Calling convention used for CHERI when
+    /// crossing a
+    /// protection boundary.
+    CHERIoT_CompartmentCall = 125,
+    /// CHERIoT_CompartmentCallee - Calling convention used for the callee of
+    /// CHERI_CCall.
+    /// Ignores the first two capability arguments and the first integer
+    /// argument, zeroes all unused return registers on return.
+    CHERIoT_CompartmentCallee = 126,
+    /// CHERIoT_LibraryCall - Calling convention used for cross-library calls to
+    /// a
+    /// stateless compartment.
----------------
nikic wrote:

```suggestion
    /// a stateless compartment.
```

https://github.com/llvm/llvm-project/pull/156328