1 // RUN: %clang_cc1 -verify -fsyntax-only %s 2 // RUN: %clang_cc1 -emit-llvm -o %t %s 3 4 #include <stddef.h> 5 6 // Declare malloc here explicitly so we don't depend on system headers. 7 void * malloc(size_t) __attribute((malloc)); 8 9 int no_vars __attribute((malloc)); // expected-warning {{attribute only applies to functions}} 10 11 void returns_void (void) __attribute((malloc)); // expected-warning {{attribute only applies to return values that are pointers}} 12 int returns_int (void) __attribute((malloc)); // expected-warning {{attribute only applies to return values that are pointers}} 13 int * returns_intptr(void) __attribute((malloc)); // no-warning 14 typedef int * iptr; 15 iptr returns_iptr (void) __attribute((malloc)); // no-warning 16 17 __attribute((malloc)) void *(*f)(); // expected-warning{{attribute only applies to functions}} 18 __attribute((malloc)) int (*g)(); // expected-warning{{attribute only applies to functions}} 19 20 __attribute((malloc)) 21 void * xalloc(unsigned n) { return malloc(n); } // no-warning 22 // RUN: grep 'define .*noalias .* @xalloc(' %t %t 23 24 #define malloc_like __attribute((__malloc__)) 25 void * xalloc2(unsigned) malloc_like; 26 void * xalloc2(unsigned n) { return malloc(n); } 27 // RUN: grep 'define .*noalias .* @xalloc2(' %t %t 28 29
