external/bsd/llvm/dist/clang/test/CodeGenOpenCL/address-spaces-conversions.cl

   1 // RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -ffake-address-space-map -cl-std=CL2.0 -emit-llvm -o - | FileCheck %s
   2
   3 // test that we generate address space casts everywhere we need conversions of
   4 // pointers to different address spaces
   5
   6 void test(global int *arg_glob, generic int *arg_gen) {
   7   int var_priv;
   8   arg_gen = arg_glob; // implicit cast global -> generic
   9   // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*
  10   arg_gen = &var_priv; // implicit cast with obtaining adr, private -> generic
  11   // CHECK: %{{[0-9]+}} = addrspacecast i32* %var_priv to i32 addrspace(4)*
  12   arg_glob = (global int *)arg_gen; // explicit cast
  13   // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(4)* %{{[0-9]+}} to i32 addrspace(1)*
  14   global int *var_glob =
  15       (global int *)arg_glob; // explicit cast in the same address space
  16   // CHECK-NOT: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(1)*
  17   var_priv = arg_gen - arg_glob; // arithmetic operation
  18   // CHECK: %{{.*}} = ptrtoint i32 addrspace(4)* %{{.*}} to i64
  19   // CHECK: %{{.*}} = ptrtoint i32 addrspace(1)* %{{.*}} to i64
  20   var_priv = arg_gen > arg_glob; // comparison
  21   // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*
  22 }