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/* Asm operands that are given as hard registers must keep the same

   hard register all the way through compilation.  Example derived

   from glibc source.  */

/* { dg-do compile } */

/* { dg-options "-O2 -frename-registers -fcprop-registers" } */

/* { dg-final { scan-assembler "callsys1 .0 .19 .0 .16 .17" } } */

/* { dg-final { scan-assembler "callsys2 .0 .19 .0 .16 .17" } } */

struct stat {

  int dummy;

};

struct kernel_stat {

  int dummy;

};

extern int xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf);

extern int *__errno_location (void) __attribute__ ((__const__));

int

__fxstat (int vers, int fd, struct stat *buf)

{

  struct kernel_stat kbuf;

  int result;

  if (vers == 0)

    return

      ({

        long _sc_ret, _sc_err;

        {

          register long _sc_0 __asm__("$0");

          register long _sc_16 __asm__("$16");

          register long _sc_17 __asm__("$17");

          register long _sc_19 __asm__("$19");

          _sc_0 = 91;

          _sc_16 = (long) (fd);

          _sc_17 = (long) (((struct kernel_stat *) buf));

          __asm__("callsys1 %0 %1 %2 %3 %4"

                  : "=r"(_sc_0), "=r"(_sc_19)

                  : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17)

                  : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8",

                    "$22", "$23", "$24", "$25", "$27", "$28", "memory");

          _sc_ret = _sc_0, _sc_err = _sc_19;

        }

        if (_sc_err)

          {

            (*__errno_location ()) = (_sc_ret);

            _sc_ret = -1L;

          }

        _sc_ret;

      });

  result =

      ({

        long _sc_ret, _sc_err;

        {

          register long _sc_0 __asm__("$0");

          register long _sc_16 __asm__("$16");

          register long _sc_17 __asm__("$17");

          register long _sc_19 __asm__("$19");

          _sc_0 = 91;

          _sc_16 = (long) (fd);

          _sc_17 = (long) ((&kbuf));

          __asm__("callsys2 %0 %1 %2 %3 %4"

                  : "=r"(_sc_0), "=r"(_sc_19)

                  : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17)

                  : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8",

                    "$22", "$23", "$24", "$25", "$27", "$28", "memory");

          _sc_ret = _sc_0, _sc_err = _sc_19;

        }

        if (_sc_err)

          {

            (*__errno_location ()) = (_sc_ret);

            _sc_ret = -1L;

          }

        _sc_ret;

      });

  if (result == 0)

    result = xstat_conv (vers, &kbuf, buf);

  return result;

}