1  /* { dg-do run { target { power10_hw } } } */
       2  /* { dg-do link { target { ! power10_hw } } } */
       3  /* { dg-require-effective-target power10_ok } */
       4  /* { dg-options "-O2 -mdejagnu-cpu=power10" } */
       5  
       6  #include <altivec.h>
       7  
       8  extern void abort (void);
       9  
      10  vector signed char
      11  doString(vector signed char *vp)
      12  {
      13    /* Tail recursion replaced with iteration with -O2.  */
      14    vector signed char result = vec_stril (*vp);
      15    if (vec_stril_p (*vp))
      16      return result;
      17    else
      18      return doString (vp + 1);
      19  }
      20  
      21  int main (int argc, char *argv [])
      22  {
      23    vector signed char composed_string [4] = {
      24      { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
      25        0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0x11 },
      26      { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
      27        0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 0xf, 0x11 },
      28      { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
      29        0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 0xf, 0x11 },
      30      { 0x1, 0x2, 0x0, 0x4, 0x5, 0x6, 0x7, 0x8,
      31        0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 0xf, 0x11 }
      32    };
      33  
      34    vector signed char expected0 =
      35      { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
      36        0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0x11 };
      37    vector signed char expected1 =
      38      { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
      39        0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 00, 0x0 };
      40    vector signed char expected2 =
      41      { 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8,
      42        0x9, 0xa, 0xb, 0xc, 0xd, 0x0, 0x0, 0x0 };
      43    vector signed char expected3 =
      44      { 0x1, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
      45        0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 };
      46  
      47    if (!vec_all_eq (doString (&composed_string[0]), expected1))
      48      abort ();
      49    if (!vec_all_eq (doString (&composed_string[1]), expected1))
      50      abort ();
      51    if (!vec_all_eq (doString (&composed_string[2]), expected2))
      52      abort ();
      53    if (!vec_all_eq (doString (&composed_string[3]), expected3))
      54      abort ();
      55  }