[clang] [llvm] [AArch64] Codegen for AArch64 Return Address Signing Hardening (PR #176187)

[Victor Campos via llvm-commits]

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@@ -2670,6 +2670,18 @@ void Verifier::verifyFunctionAttrs(FunctionType *FT, AttributeList Attrs,
     }
   }
 
+  if (auto A = Attrs.getFnAttr("sign-return-address-harden"); A.isValid()) {
+    StringRef S = A.getValueAsString();
+    if (S != "load-return-address" && S != "none")
+      CheckFailed(
+          "invalid value for 'sign-return-address-harden' attribute: " + S, V);
+    auto SignRetA = Attrs.getFnAttr("sign-return-address");
+    auto PAuthRetA = Attrs.getFnAttr("ptrauth-returns");
+    if (!SignRetA.isValid() && !PAuthRetA.isValid())
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vhscampos wrote:

Fixed

https://github.com/llvm/llvm-project/pull/176187