gcc/testsuite/gcc.dg/vect/pr66142.c

   1 /* PR middle-end/66142 */
   2 /* { dg-do compile } */
   3 /* { dg-additional-options "-ffast-math -fopenmp-simd" } */
   4 /* { dg-additional-options "-mavx" { target avx_runtime } } */
   5
   6 struct A { float x, y; };
   7 struct B { struct A t, w; };
   8
   9 static inline float
  10 bar (const struct B *x)
  11 {
  12   struct A r;
  13   float b, c, d;
  14   r.x = x->t.x;
  15   r.y = x->t.y;
  16   b = r.x * x->w.x + r.y * x->w.y;
  17   c = b + r.x * r.x + r.y * r.y;
  18   if (c > 0.0f)
  19     return c + 3.0f;
  20   return 0.0f;
  21 }
  22
  23 void
  24 foo (float *a, float *b, float *c)
  25 {
  26   int i;
  27   float z = 0.0f;
  28   float u = *a;
  29 #pragma omp simd
  30   for (i = 0; i < 32; i++)
  31     {
  32       float x = b[i];
  33       float y = c[i];
  34       struct B r;
  35       r.t.x = 1.0f;
  36       r.t.y = u;
  37       r.w.x = x;
  38       r.w.y = y;
  39       z += bar (&r);
  40     }
  41   *a = z;
  42 }
  43
  44 /* { dg-final { scan-tree-dump-times "vectorized 1 loops in function" 1 "vect" { target vect_condition } } } */