[llvm] [llvm-exegesis] [AArch64] Resolving Illegal Instruction Error (PR #132346)

[Sjoerd Meijer via llvm-commits]

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@@ -35,6 +35,14 @@ const ExegesisTarget *ExegesisTarget::lookup(Triple TT) {
   return nullptr;
 }
 
+static bool isPointerAuthOpcode(unsigned Opcode) {
+  return (Opcode >= 1648 && Opcode <= 1667); // AUT instruction class range
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sjoerdmeijer wrote:

Sorry for about to add this:  I don't know what that FEAT_FPAC things is. 
I don't think it is advertised as in the linux kernel features, maybe it is a bit of a different name, but don't think I see something that looks like it. Maybe I am missing something because I didn't research it too long. But if this is extension for raising the exception, then it looks like Grace has that like you wrote.

https://github.com/llvm/llvm-project/pull/132346