gcc/testsuite/gcc.target/powerpc/pr71656-2.c

   1 /* Test for reload ICE arising from POWER9 Vector Dform code generation.  */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target powerpc_p9vector_ok } */
   4 /* { dg-options "-O3 -mpower9-vector -funroll-loops -fno-aggressive-loop-optimizations" } */
   5
   6 typedef double vec[3];
   7 struct vec_t
   8 {
   9   vec x;
  10   vec y;
  11 };
  12 int a, j, k, l, m, n, o, p, q;
  13 double b, i;
  14 vec c;
  15 double h[6];
  16 void func1 (vec);
  17
  18 void
  19 func2 (double *b)
  20 {
  21   for (; k; k--)
  22     for (; j <= k;)
  23       for (; m <= q; m++)
  24         for (; n <= k; n++)
  25           for (; o <= l; o++)
  26             {
  27               j = p + m + n + o;
  28               h[j] = i;
  29             }
  30 }
  31
  32 void
  33 func3 (void)
  34 {
  35   struct vec_t d;
  36   func1 (d.y);
  37   func2 (&b);
  38   for (; a;)
  39     {
  40       double *e = d.y, *g;
  41       double f;
  42       c[0] = g[0] + f * e[0];
  43       c[1] = g[1] + f * e[1];
  44       func1 (c);
  45     }
  46 }