clang/test/CodeGenOpenCLCXX/addrspace-conversion.clcpp

// RUN: %clang_cc1 %s -triple spir-unknown-unknown -emit-llvm -O0 -o - | FileCheck %s

void bar(__generic volatile unsigned int* ptr)
{
  //CHECK: addrspacecast ptr addrspace(4) %{{.+}} to ptr addrspace(1)
  auto gptr = (__global volatile unsigned int*)ptr;
}