1  /* From PR rtl-optimization/19683.  On little-endian MIPS targets,
       2     reload would incorrectly inherit the high part of the multiplication
       3     result.  */
       4  /* { dg-do run { target mips*-*-* } } */
       5  
       6  extern void abort (void);
       7  extern void exit (int);
       8  
       9  #define REPEAT10(X, Y)					\
      10    X(Y##0); X(Y##1); X(Y##2); X(Y##3); X(Y##4);		\
      11    X(Y##5); X(Y##6); X(Y##7); X(Y##8); X(Y##9)
      12  
      13  #define REPEAT30(X) REPEAT10 (X, 0); REPEAT10 (X, 1); REPEAT10 (X, 2)
      14  #define IN(X) unsigned int x##X = ptr[0]
      15  #define OUT(X) ptr[0] = x##X
      16  
      17  #if __mips_isa_rev <= 5
      18  union u { unsigned long long ll; unsigned int i[2]; };
      19  
      20  unsigned int __attribute__ ((nomips16))
      21  foo (volatile unsigned int *ptr)
      22  {
      23    union u u;
      24    int result;
      25  
      26    u.ll = (unsigned long long) ptr[0] * ptr[0];
      27    REPEAT30 (IN);
      28    REPEAT30 (OUT);
      29    asm ("#" : "=l" (result) : "l" (u.i[1]));
      30    return result;
      31  }
      32  #endif
      33  
      34  int __attribute__ ((nomips16))
      35  main (void)
      36  {
      37  #if __mips_isa_rev <= 5
      38    unsigned int array[] = { 1000 * 1000 * 1000 };
      39    union u u;
      40  
      41    u.ll = (unsigned long long) array[0] * array[0];
      42    if (foo (array) != u.i[1])
      43      abort ();
      44  #endif
      45    exit (0);
      46  }