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-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
   5 /* { dg-options "-O3 -mcpu=power9 -mpower9-dform-vector -mno-lra -funroll-loops -fno-aggressive-loop-optimizations" } */
   6
   7 typedef double vec[3];
   8 struct vec_t
   9 {
  10   vec x;
  11   vec y;
  12 };
  13 int a, j, k, l, m, n, o, p, q;
  14 double b, i;
  15 vec c;
  16 double h[6];
  17 void func1 (vec);
  18
  19 void
  20 func2 (double *b)
  21 {
  22   for (; k; k--)
  23     for (; j <= k;)
  24       for (; m <= q; m++)
  25         for (; n <= k; n++)
  26           for (; o <= l; o++)
  27             {
  28               j = p + m + n + o;
  29               h[j] = i;
  30             }
  31 }
  32
  33 void
  34 func3 (void)
  35 {
  36   struct vec_t d;
  37   func1 (d.y);
  38   func2 (&b);
  39   for (; a;)
  40     {
  41       double *e = d.y, *g;
  42       double f;
  43       c[0] = g[0] + f * e[0];
  44       c[1] = g[1] + f * e[1];
  45       func1 (c);
  46     }
  47 }