Index: include/llvm/IR/IntrinsicsAMDGPU.td
===================================================================
--- include/llvm/IR/IntrinsicsAMDGPU.td
+++ include/llvm/IR/IntrinsicsAMDGPU.td
@@ -1524,7 +1524,7 @@
 
 def int_amdgcn_s_get_waveid_in_workgroup :
   GCCBuiltin<"__builtin_amdgcn_s_get_waveid_in_workgroup">,
-  Intrinsic<[llvm_i32_ty], [], [IntrReadMem]>;
+  Intrinsic<[llvm_i32_ty], [], [IntrReadMem, IntrInaccessibleMemOnly]>;
 
 //===----------------------------------------------------------------------===//
 // Deep learning intrinsics.