gcc/testsuite/c-c++-common/gomp/simd8.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fopenmp -O3 -fdump-tree-vect-details" } */
   3 /* { dg-final { scan-tree-dump-times "vectorized 0 loops in function" 4 "vect" } } */
   4
   5 int a[1024];
   6
   7 void
   8 foo (void)
   9 {
  10   #pragma omp simd if (0)
  11   for (int i = 0; i < 1024; ++i)
  12     a[i] = a[i] + 1;
  13 }
  14
  15 void
  16 bar (void)
  17 {
  18   #pragma omp simd if (0) safelen (256) simdlen (8)
  19   for (int i = 0; i < 512; ++i)
  20     a[i] = a[i] + 1;
  21 }
  22
  23 void
  24 baz (void)
  25 {
  26   #pragma omp simd safelen (256) simdlen (1)
  27   for (int i = 0; i < 512; ++i)
  28     a[i] = a[i] + 1;
  29 }
  30
  31 void
  32 qux (void)
  33 {
  34   #pragma omp simd simdlen (1) if (1)
  35   for (int i = 0; i < 512; ++i)
  36     a[i] = a[i] + 1;
  37 }