gcc/testsuite/gcc.dg/Wstrict-overflow-21.c

   1 /* PR 32102: -Wall stomps on -Wstrict-overflow */
   2 /* { dg-do compile } */
   3 /* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=2 -Wall" } */
   4 int
   5 foo ()
   6 {
   7   int i, bits;
   8   for (i = 1, bits = 1; i > 0; i += i) /* { dg-warning "assuming signed overflow does not occur" "correct warning" { xfail *-*-* } } */
   9     ++bits;
  10   return bits;
  11 }
  12