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

   1 // RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only
   2
   3 __constant int ci = 1;
   4
   5 __kernel void foo(__global int *gip) {
   6   __local int li;
   7   __local int lj = 2; // expected-error {{'__local' variable cannot have an initializer}}
   8
   9   int *ip;
  10   ip = gip; // expected-error {{assigning '__global int *' to 'int *' changes address space of pointer}}
  11   ip = &li; // expected-error {{assigning '__local int *' to 'int *' changes address space of pointer}}
  12   ip = &ci; // expected-error {{assigning '__constant int *' to 'int *' changes address space of pointer}}
  13 }
  14
  15 void explicit_cast(global int* g, local int* l, constant int* c, private int* p, const constant int *cc)
  16 {
  17   g = (global int*) l;    // expected-error {{casting '__local int *' to type '__global int *' changes address space of pointer}}
  18   g = (global int*) c;    // expected-error {{casting '__constant int *' to type '__global int *' changes address space of pointer}}
  19   g = (global int*) cc;   // expected-error {{casting 'const __constant int *' to type '__global int *' changes address space of pointer}}
  20   g = (global int*) p;    // expected-error {{casting 'int *' to type '__global int *' changes address space of pointer}}
  21
  22   l = (local int*) g;     // expected-error {{casting '__global int *' to type '__local int *' changes address space of pointer}}
  23   l = (local int*) c;     // expected-error {{casting '__constant int *' to type '__local int *' changes address space of pointer}}
  24   l = (local int*) cc;    // expected-error {{casting 'const __constant int *' to type '__local int *' changes address space of pointer}}
  25   l = (local int*) p;     // expected-error {{casting 'int *' to type '__local int *' changes address space of pointer}}
  26
  27   c = (constant int*) g;  // expected-error {{casting '__global int *' to type '__constant int *' changes address space of pointer}}
  28   c = (constant int*) l;  // expected-error {{casting '__local int *' to type '__constant int *' changes address space of pointer}}
  29   c = (constant int*) p;  // expected-error {{casting 'int *' to type '__constant int *' changes address space of pointer}}
  30
  31   p = (private int*) g;   // expected-error {{casting '__global int *' to type 'int *' changes address space of pointer}}
  32   p = (private int*) l;   // expected-error {{casting '__local int *' to type 'int *' changes address space of pointer}}
  33   p = (private int*) c;   // expected-error {{casting '__constant int *' to type 'int *' changes address space of pointer}}
  34   p = (private int*) cc;  // expected-error {{casting 'const __constant int *' to type 'int *' changes address space of pointer}}
  35 }
  36
  37 void ok_explicit_casts(global int *g, global int* g2, local int* l, local int* l2, private int* p, private int* p2)
  38 {
  39   g = (global int*) g2;
  40   l = (local int*) l2;
  41   p = (private int*) p2;
  42 }