1  /* PR rtl-optimization/97459 */
       2  /* { dg-do run } */
       3  /* { dg-options "-O2" } */
       4  /* { dg-additional-options "-DEXPENSIVE" { target run_expensive_tests } } */
       5  
       6  #ifdef __SIZEOF_INT128__
       7  typedef __int128_t T;
       8  typedef __uint128_t U;
       9  #else
      10  typedef long long T;
      11  typedef unsigned long long U;
      12  #endif
      13  
      14  T __attribute__((noipa)) foo (T x, T n, T *r) { *r = x % n; return x / n; }
      15  #define C(n) T __attribute__((noipa)) foo##n (T x, T *r) { *r = x % (n - 10000); return x / (n - 10000); }
      16  
      17  #define C1(n) C(n##1) C(n##3) C(n##5) C(n##7) C(n##9)
      18  #define C2(n) C1(n##0) C1(n##1) C1(n##2) C1(n##3) C1(n##4) \
      19  	      C1(n##5) C1(n##6) C1(n##7) C1(n##8) C1(n##9)
      20  #ifdef EXPENSIVE
      21  #define C3(n) C2(n##0) C2(n##1) C2(n##2) C2(n##3) C2(n##4) \
      22  	      C2(n##5) C2(n##6) C2(n##7) C2(n##8) C2(n##9)
      23  #define C4(n) C3(n##0) C3(n##1) C3(n##2) C3(n##3) C3(n##4) \
      24  	      C3(n##5) C3(n##6) C3(n##7) C3(n##8) C3(n##9)
      25  #else
      26  #define C3(n) C2(n##0) C2(n##4) C2(n##9)
      27  #define C4(n) C3(n##0) C3(n##3) C3(n##7)
      28  #endif
      29  #define TESTS C4(1) C1(10010) C1(10012) C1(16144)
      30  
      31  TESTS
      32  
      33  struct S { T x; T (*foo) (T, T *); };
      34  
      35  #undef C
      36  #define C(n) { n - 10000, foo##n },
      37  
      38  struct S tests[] = {
      39  TESTS
      40    { 0, 0 }
      41  };
      42  
      43  int
      44  main ()
      45  {
      46    int i, j, k;
      47    for (k = 0; tests[k].x; k++)
      48      for (i = 0; i < sizeof (T) * __CHAR_BIT__; i++)
      49        for (j = -5; j <= 5; j++)
      50  	{
      51  	  U x = ((U) 1 << i) + j;
      52  	  T r1 = 0, r2 = 0;
      53  	  if (foo ((T) x, tests[k].x, &r1) != tests[k].foo ((T) x, &r2)
      54  	      || r1 != r2)
      55  	    __builtin_abort ();
      56  	  r1 = 0; r2 = 0;
      57  	  if (foo ((T) -x, tests[k].x, &r1) != tests[k].foo ((T) -x, &r2)
      58  	      || r1 != r2)
      59  	    __builtin_abort ();
      60  	}
      61    return 0;
      62  }