| /* Limit this to known non-strict alignment targets. */ |
| /* { dg-do run { target { i?86-*-linux* x86_64-*-linux* } } } */ |
| /* { dg-options "-O -fsanitize=alignment -fno-sanitize-recover=alignment -Wno-address-of-packed-member -fdump-tree-sanopt-details" } */ |
| /* { dg-skip-if "" { *-*-* } { "-flto -fno-fat-lto-objects" } } */ |
| /* { dg-shouldfail "ubsan" } */ |
| |
| struct S { int a; char b; long long c; short d[10]; }; |
| struct T { char a; long long b; }; |
| struct U { char a; int b; int c; long long d; struct S e; struct T f; } __attribute__((packed)); |
| struct V { long long a; struct S b; struct T c; struct U u; } v; |
| |
| __attribute__((noinline, noclone)) int |
| foo (struct S *p) |
| { |
| volatile int i; |
| i = p->a; |
| i = p->a; |
| i = p->a; |
| i = p->a; |
| return p->a; |
| } |
| |
| int |
| main () |
| { |
| if (foo (&v.u.e)) |
| __builtin_abort (); |
| return 0; |
| } |
| |
| /* { dg-output "\.c:16:\[0-9]*: \[^\n\r]*member access within misaligned address 0x\[0-9a-fA-F]* for type 'struct S', which requires \[48] byte alignment" } */ |
| /* { dg-final { scan-tree-dump-times "Optimizing" 4 "sanopt"} } */ |
