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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized -w" } */
struct ehci_regs {
char x;
unsigned int port_status[0];
} __attribute__ ((packed));
struct ehci_hcd {
struct ehci_regs *regs;
};
int ehci_hub_control (struct ehci_hcd *ehci, int wIndex)
{
unsigned int *status_reg = &ehci->regs->port_status[wIndex];
return *(volatile unsigned int *)status_reg;
}
/* { dg-final { scan-tree-dump "={v}" "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
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