1  /* PR tree-optimization/33619 */
       2  /* { dg-do run } */
       3  /* { dg-options "-O2" } */
       4  
       5  #ifdef __powerpc__
       6  # define REG1 __asm__ ("3")
       7  # define REG2 __asm__ ("4")
       8  #elif defined __x86_64__
       9  # define REG1 __asm__ ("rdi")
      10  # define REG2 __asm__ ("rsi")
      11  #else
      12  # define REG1
      13  # define REG2
      14  #endif
      15  
      16  static inline void
      17  bar (unsigned long x, int y)
      18  {
      19    register unsigned long p1 REG1 = x;
      20    register unsigned long p2 REG2 = y;
      21    __asm__ volatile ("" : "=r" (p1), "=r" (p2) : "0" (p1), "1" (p2) : "memory");
      22    if (p1 != 0xdeadUL || p2 != 0xbefUL)
      23      __builtin_abort ();
      24  }
      25  
      26  __attribute__((const, noinline)) int
      27  baz (int x)
      28  {
      29    return x;
      30  }
      31  
      32  __attribute__((noinline)) void
      33  foo (unsigned long *x, int y)
      34  {
      35    unsigned long a = *x;
      36    bar (a, baz (y));
      37  }
      38  
      39  int
      40  main (void)
      41  {
      42    unsigned long a = 0xdeadUL;
      43    foo (&a, 0xbefUL);
      44    return 0;
      45  }