clang/test/SemaTemplate/instantiate-clang.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 // Test template instantiation for Clang-specific features.
   4
   5 // ---------------------------------------------------------------------
   6 // Vector types
   7 // ---------------------------------------------------------------------
   8 typedef __attribute__(( ext_vector_type(2) )) double double2;
   9 typedef __attribute__(( ext_vector_type(4) )) double double4;
  10
  11 template<typename T>
  12 struct ExtVectorAccess0 {
  13   void f(T v1, double4 v2) {
  14     v1.xy = v2.yx;
  15   }
  16 };
  17
  18 template struct ExtVectorAccess0<double2>;
  19 template struct ExtVectorAccess0<double4>;
  20
  21 template<typename T>
  22 struct ExtVectorAccess1 {
  23   void f(T *v1, double4 *v2) {
  24     v1->xy = v2->yx;
  25   }
  26 };
  27
  28 template struct ExtVectorAccess1<double2>;
  29 template struct ExtVectorAccess1<double4>;
  30
  31 template<typename T, typename U, int N, int M>
  32 struct ShuffleVector0 {
  33   void f(T t, U u, double2 a, double2 b) {
  34     (void)__builtin_shufflevector(t, u, N, M); // expected-error{{index}}
  35     (void)__builtin_shufflevector(a, b, N, M); // expected-error{{index}}
  36     (void)__builtin_shufflevector(a, b, 2, 1);
  37   }
  38 };
  39
  40 template struct ShuffleVector0<double2, double2, 2, 1>;
  41 template struct ShuffleVector0<double2, double2, 4, 3>; // expected-note{{instantiation}}
  42
  43