llvm-project/llvm/test/C++Frontend/2007-07-29-RestrictRefArg.cpp

// RUN: %llvmgxx -c -emit-llvm %s -o - | llvm-dis | grep noalias

void foo(int & __restrict myptr1, int & myptr2) {
  myptr1 = 0;
  myptr2 = 0;
}