modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/991202-1.c (about) 1 int x, y; 2 3 int 4 main() 5 { 6 x = 2; 7 y = x; 8 do 9 { 10 x = y; 11 y = 2 * y; 12 } 13 while ( ! ((y - x) >= 20)); 14 exit (0); 15 } 16