[llvm] [llvm-exegesis][AArch64] Disable pauth and ldgm as unsupported instructions (PR #132346)

[David Green 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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davemgreen wrote:

Or - perhaps Grace does have FEAT_FPAC (but we don't mark it as such in LLVM) and the system I am running on doesn't fault due to some way it is setup? I would imagine there was some way to disable the faulting at at least the OS level.

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