gcc/testsuite/gcc.dg/pr70747.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-pedantic" } */
   3
   4 int *a, b;
   5
   6 void fn1 ()
   7 {
   8   a = __builtin_malloc (sizeof(int)*2);
   9   b = &a[1] == (0, 0); /* { dg-warning "comparison between pointer and integer" } */
  10 }