gcc/testsuite/gcc.target/arm/vect-copysignf.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target arm_neon_hw } */
   3 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-details" } */
   4 /* { dg-add-options "arm_neon" } */
   5
   6 extern void abort ();
   7
   8 #define N 16
   9 float a[N] = {-0.1f, -3.2f, -6.3f, -9.4f,
  10               -12.5f, -15.6f, -18.7f, -21.8f,
  11               24.9f, 27.1f, 30.2f, 33.3f,
  12               36.4f, 39.5f, 42.6f, 45.7f};
  13 float b[N] = {-1.2f, 3.4f, -5.6f, 7.8f,
  14               -9.0f, 1.0f, -2.0f, 3.0f,
  15               -4.0f, -5.0f, 6.0f, 7.0f,
  16               -8.0f, -9.0f, 10.0f, 11.0f};
  17 float r[N];
  18
  19 int
  20 main (void)
  21 {
  22   int i;
  23
  24   for (i = 0; i < N; i++)
  25     r[i] = __builtin_copysignf (a[i], b[i]);
  26
  27   /* check results:  */
  28   for (i = 0; i < N; i++)
  29     if (r[i] != __builtin_copysignf (a[i], b[i]))
  30       abort ();
  31
  32   return 0;
  33 }
  34
  35 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */