gcc/testsuite/c-c++-common/ubsan/align-9.c

   1 /* Limit this to known non-strict alignment targets.  */
   2 /* { dg-do run { target { i?86-*-linux* x86_64-*-linux* } } } */
   3 /* { dg-options "-O2 -fsanitize=alignment -fsanitize-recover=alignment" } */
   4
   5 __attribute__((noinline, noclone)) void
   6 foo (void *p, const void *q)
   7 {
   8   *(long int *) p = *(const long int *) q;
   9 }
  10
  11 int
  12 main ()
  13 {
  14   struct S { long c; char f[64]; char d; char e[2 * sizeof (long)]; char g[64]; } s;
  15   __builtin_memset (&s, '\0', sizeof s);
  16   foo (&s.e[0], &s.e[sizeof (long)]);
  17   return 0;
  18 }
  19
  20 /* { dg-output "\.c:8:\[0-9]*: \[^\n\r]*load of misaligned address 0x\[0-9a-fA-F]* for type 'const long int', which requires \[48] byte alignment.*" } */
  21 /* { dg-output "\.c:8:\[0-9]*: \[^\n\r]*store to misaligned address 0x\[0-9a-fA-F]* for type 'long int', which requires \[48] byte alignment" } */