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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [20080723-1.c] - Rev 848
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/* { dg-do run } */ /* { dg-options "-O2" } */ extern void abort (void); extern void exit (int); static inline __attribute__((always_inline)) void prefetch (void *x) { asm volatile("prefetcht0 %0" : : "m" (*(unsigned long *)x)); } struct hlist_head { struct hlist_node *first; }; struct hlist_node { struct hlist_node *next; unsigned long i_ino; }; struct hlist_node * find_inode_fast(struct hlist_head *head, unsigned long ino) { struct hlist_node *node; for (node = head->first; node && (prefetch (node->next), 1); node = node->next) { if (node->i_ino == ino) break; } return node ? node : 0; } struct hlist_node g2; struct hlist_node g1 = { &g2 }; struct hlist_head h = { &g1 }; int main() { if (find_inode_fast (&h, 1) != 0) abort (); exit (0); }
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