clang/test/Sema/align_value.c

   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
   7 // expected-error@+1 {{requested alignment is not a power of 2}}
   8 typedef double * __attribute__((align_value(63))) aligned_double1;
   9
  10 // expected-error@+1 {{requested alignment is not a power of 2}}
  11 typedef double * __attribute__((align_value(-2))) aligned_double2;
  12
  13 // expected-error@+1 {{attribute takes one argument}}
  14 typedef double * __attribute__((align_value(63, 4))) aligned_double3;
  15
  16 // expected-error@+1 {{attribute takes one argument}}
  17 typedef double * __attribute__((align_value())) aligned_double3a;
  18
  19 // expected-error@+1 {{attribute takes one argument}}
  20 typedef double * __attribute__((align_value)) aligned_double3b;
  21
  22 // expected-error@+1 {{'align_value' attribute requires integer constant}}
  23 typedef double * __attribute__((align_value(4.5))) aligned_double4;
  24
  25 // expected-warning@+1 {{'align_value' attribute only applies to a pointer or reference ('int' is invalid)}}
  26 typedef int __attribute__((align_value(32))) aligned_int;
  27
  28 typedef double * __attribute__((align_value(32*2))) aligned_double5;
  29
  30 // expected-warning@+1 {{'align_value' attribute only applies to variables and typedefs}}
  31 void bar(void) __attribute__((align_value(32)));
  32