gcc/testsuite/gcc.dg/Wstrict-overflow-24.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fstrict-overflow -O2" } */
   3 /* { dg-message "warnings being treated as errors" "" {target "*-*-*"} 0 } */
   4 #pragma GCC diagnostic error "-Wstrict-overflow"
   5
   6 int
   7 foo (int i)
   8 {
   9   return __builtin_abs (i) >= 0; /* { dg-error "assuming signed overflow does not occur" "correct warning" } */
  10 }