[clang] [compiler-rt] [llvm] [X86] AVX10_V2_AUX Implementation (PR #206888)

[Evgenii Kudriashov via cfe-commits]

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@@ -11598,6 +11598,8 @@ def err_ppc_invalid_arg_type : Error<
   "argument %0 must be of type %1">;
 def err_x86_builtin_invalid_rounding : Error<
   "invalid rounding argument">;
+def err_x86_builtin_reserved_vunpackb_imm : Error<
+  "argument value %0 is a reserved VUNPACKB immediate">;
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e-kud wrote:

Agree. It looks like there is no universal message for such errors (am I missing it?). I also think that either `[6, 7]` needs to be parameters to the error message or make a message something like `argument value crosses a reserved bits mask`. To make it more universal if we have disjoint intervals of reserved bits, e.g. `[1, 2]`, `[6-7]` -- `0xC6`

https://github.com/llvm/llvm-project/pull/206888