1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s 2*67e74705SXin Li f(int x)3*67e74705SXin Livoid f(int x) { 4*67e74705SXin Li char foo[10]; 5*67e74705SXin Li int bar[20]; 6*67e74705SXin Li char qux[30]; 7*67e74705SXin Li 8*67e74705SXin Li (void)sizeof(bar + 10); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}} 9*67e74705SXin Li (void)sizeof(foo - 20); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}} 10*67e74705SXin Li (void)sizeof(bar - x); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}} 11*67e74705SXin Li (void)sizeof(foo + x); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}} 12*67e74705SXin Li 13*67e74705SXin Li // This is ptrdiff_t. 14*67e74705SXin Li (void)sizeof(foo - qux); // no-warning 15*67e74705SXin Li 16*67e74705SXin Li (void)sizeof(foo, x); // no-warning 17*67e74705SXin Li (void)sizeof(x, foo); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}} 18*67e74705SXin Li } 19