gcc/testsuite/gcc.dg/compare7.c

   1 /* -Wall is not supposed to trigger -Wsign-compare for C.  PR 10604.
   2    See also g++.dg/warn/compare1.C.  */
   3
   4 /* { dg-do compile } */
   5 /* { dg-options "-Wall" } */
   6
   7 int f(unsigned a, int b)
   8 {
   9   return a < b;  /* { dg-bogus "changes signedness" } */
  10 }