clang/test/SemaCXX/align_value.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 typedef double * __attribute__((align_value(64))) aligned_double;
   4
   5 void foo(aligned_double x, double * y __attribute__((align_value(32))),
   6          double & z __attribute__((align_value(128)))) { };
   7
   8 template <typename T, int Q>
   9 struct x {
  10   typedef T* aligned_int __attribute__((align_value(32+8*Q)));
  11   aligned_int V;
  12
  13   void foo(aligned_int a, T &b __attribute__((align_value(sizeof(T)*4))));
  14 };
  15
  16 x<float, 4> y;
  17
  18 template <typename T, int Q>
  19 struct nope {
  20   // expected-error@+1 {{requested alignment is not a power of 2}}
  21   void foo(T &b __attribute__((align_value(sizeof(T)+1))));
  22 };
  23
  24 // expected-note@+1 {{in instantiation of template class 'nope<long double, 4>' requested here}}
  25 nope<long double, 4> y2;
  26