1/* Limit this to known non-strict alignment targets. */ 2/* { dg-do run { target { i?86-*-linux* x86_64-*-linux* } } } */ 3/* { dg-options "-fsanitize=alignment" } */ 4 5#define __round_mask(x, y) ((__typeof__(x))((y)-1)) 6#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) 7 8struct test_struct { 9 unsigned long a; 10 int b; 11} __attribute__((__aligned__(64))); 12 13char a[200]; 14 15int main () 16{ 17 volatile int x = ((struct test_struct*)(round_up((unsigned long)a, 64) + 16))->b; 18 volatile int y = ((struct test_struct*)(round_up((unsigned long)a, 64) + 15))->b; 19 20 return 0; 21} 22 23/* { 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.*" } */ 24