modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/pr21761.c (about)

     1  void f1()
     2  {
     3    long bit=0, exponent;
     4    exponent = -exponent;
     5    for (bit = 1; exponent; bit <<= 1)
     6        if (exponent & bit)
     7                exponent ^= bit;
     8  }
     9