1// RUN: %clangxx -o %t1 %s 2// RUN: %t1 2>&1 | FileCheck --check-prefix=NCFI %s 3 4// RUN: %clangxx_cfi -o %t2 %s 5// RUN: %expect_crash %t2 2>&1 | FileCheck --check-prefix=CFI %s 6 7// RUN: %clangxx_cfi_diag -g -o %t3 %s 8// RUN: %t3 2>&1 | FileCheck --check-prefix=CFI-DIAG %s 9 10#include <stdio.h> 11 12void f() { 13} 14 15int main() { 16 // CFI: 1 17 // NCFI: 1 18 fprintf(stderr, "1\n"); 19 20 // CFI-DIAG: runtime error: control flow integrity check for type 'void (int)' failed during indirect function call 21 // CFI-DIAG: f() defined here 22 ((void (*)(int))f)(42); // UB here 23 24 // CFI-NOT: 2 25 // NCFI: 2 26 fprintf(stderr, "2\n"); 27} 28