modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/pr52209.c (about) 1 /* PR middle-end/52209 */ 2 3 extern void abort (void); 4 struct S0 { int f2 : 1; } c; 5 int b; 6 7 int 8 main () 9 { 10 b = -1 ^ c.f2; 11 if (b != -1) 12 abort (); 13 return 0; 14 }