Index: include/llvm/IR/IntrinsicsWebAssembly.td
===================================================================
--- include/llvm/IR/IntrinsicsWebAssembly.td
+++ include/llvm/IR/IntrinsicsWebAssembly.td
@@ -32,7 +32,9 @@
 def int_wasm_grow_memory : Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>], []>;
 
 // Exception handling intrinsics
-def int_wasm_throw: Intrinsic<[], [llvm_i32_ty, llvm_ptr_ty], [Throws]>;
-def int_wasm_rethrow: Intrinsic<[], [], [Throws]>;
 
+def int_wasm_throw : Intrinsic<[],
+                               [llvm_i32_ty, llvm_ptr_ty],
+                               [Throws, IntrNoReturn]>;
+def int_wasm_rethrow : Intrinsic<[], [], [Throws, IntrNoReturn]>;
 }