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/* { dg-do run { target powerpc*-*-* } } */

/* { dg-options "-O2" } */

#include <locale.h>

#include <stdlib.h>

register int *testreg asm ("r29");

int x;

int y;

int *ext_func (int *p) { return p; }

void test_reg_save_restore (int*) __attribute__((noinline));

void

test_reg_save_restore (int *p)

{

    setlocale (LC_ALL, "C");

    testreg = ext_func(p);

}

main() {

  testreg = &x;

  test_reg_save_restore (&y);

  if (testreg != &y)

    abort ();

  return 0;

}