gcc/testsuite/gcc.dg/torture/pr71866.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-ftree-pre -fcode-hoisting" } */
   3
   4 __extension__ typedef __UINTPTR_TYPE__ uintptr_t;
   5
   6 typedef unsigned char u8;
   7 extern unsigned long pci_io_base;
   8 u8 in_8 (const volatile void *);
   9 int eeh_enabled ();
  10 void eeh_check_failure ();
  11 static inline
  12 u8 eeh_readb(const volatile void *addr)
  13 {
  14   u8 val = in_8(addr);
  15   if (((val) == (u8)~0 && eeh_enabled()))   eeh_check_failure();
  16   return val;
  17 }
  18 extern struct ppc_pci_io {
  19     void (*outb) (u8 val, unsigned long port);
  20 }
  21 ppc_pci_io;
  22 static inline
  23 u8 readb (const volatile void * addr)
  24 {
  25   return eeh_readb((addr));
  26 }
  27 static inline
  28 u8 inb (unsigned long port)
  29 {
  30   return readb((volatile void *)(uintptr_t)pci_io_base + port);
  31 }
  32 static inline
  33 void outb (u8 val, unsigned long port)
  34 {
  35   if (ppc_pci_io.outb != ((void *)0)) ppc_pci_io.outb (val, port);
  36 };
  37 void frob_econtrol(unsigned long base_hi, unsigned char m, unsigned char v)
  38 {
  39   unsigned char ectr = 0;
  40   if (m != 0xff)   ectr = inb((base_hi + 0x2));
  41   outb((ectr & ~m) ^ v, (base_hi + 0x2));
  42 }