diff --git a/llvm/include/llvm/IR/IntrinsicsAArch64.td b/llvm/include/llvm/IR/IntrinsicsAArch64.td
--- a/llvm/include/llvm/IR/IntrinsicsAArch64.td
+++ b/llvm/include/llvm/IR/IntrinsicsAArch64.td
@@ -689,7 +689,7 @@
 // Memory Tagging Extensions (MTE) Intrinsics
 let TargetPrefix = "aarch64" in {
 def int_aarch64_irg   : Intrinsic<[llvm_ptr_ty], [llvm_ptr_ty, llvm_i64_ty],
-    [IntrInaccessibleMemOnly]>;
+    [IntrNoMem, IntrHasSideEffects]>;
 def int_aarch64_addg  : Intrinsic<[llvm_ptr_ty], [llvm_ptr_ty, llvm_i64_ty],
     [IntrNoMem]>;
 def int_aarch64_gmi   : Intrinsic<[llvm_i64_ty], [llvm_ptr_ty, llvm_i64_ty],