| /* Limit this to known non-strict alignment targets. */ |
| /* { dg-do run { target { i?86-*-linux* x86_64-*-linux* } } } */ |
| /* { dg-options "-fsanitize=alignment" } */ |
| |
| #define __round_mask(x, y) ((__typeof__(x))((y)-1)) |
| #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) |
| |
| struct test_struct { |
| unsigned long a; |
| int b; |
| } __attribute__((__aligned__(64))); |
| |
| char a[200]; |
| |
| int main () |
| { |
| volatile int x = ((struct test_struct*)(round_up((unsigned long)a, 64) + 16))->b; |
| volatile int y = ((struct test_struct*)(round_up((unsigned long)a, 64) + 15))->b; |
| |
| return 0; |
| } |
| |
| /* { dg-output "\.c:18:\[0-9]*: \[^\n\r]*member access within misaligned address 0x\[0-9a-fA-F]* for type 'struct test_struct', which requires 64 byte alignment" } */ |
