gcc/testsuite/gcc.dg/vect/vect-simd-1.c

   1 /* { dg-additional-options "-fopenmp-simd" } */
   2 /* { dg-additional-options "-mavx" { target avx_runtime } } */
   3
   4 #include "tree-vect.h"
   5
   6 #define N 1024
   7 int a[N];
   8 int x;
   9
  10 __attribute__((noipa)) int
  11 bar (void)
  12 {
  13   return x;
  14 }
  15
  16 __attribute__((noipa)) void
  17 foo (void)
  18 {
  19   #pragma omp simd if (bar ())
  20   for (int i = 0; i < N; ++i)
  21     a[i] = a[i] + 1;
  22 }
  23
  24 __attribute__((noipa)) void
  25 baz (void)
  26 {
  27   int c = 0;
  28   #pragma omp simd if (c)
  29   for (int i = 0; i < N; ++i)
  30     a[i] = a[i] + 1;
  31 }
  32
  33 __attribute__((noipa)) void
  34 qux (void)
  35 {
  36   int c = 1;
  37   #pragma omp simd if (c)
  38   for (int i = 0; i < N; ++i)
  39     a[i] = a[i] + 1;
  40 }
  41
  42 int
  43 main ()
  44 {
  45   check_vect ();
  46   foo ();
  47 #pragma GCC novector
  48   for (int i = 0; i < N; ++i)
  49     if (a[i] != 1)
  50       abort ();
  51   x = 1;
  52   foo ();
  53 #pragma GCC novector
  54   for (int i = 0; i < N; ++i)
  55     if (a[i] != 2)
  56       abort ();
  57   baz ();
  58 #pragma GCC novector
  59   for (int i = 0; i < N; ++i)
  60     if (a[i] != 3)
  61       abort ();
  62   qux ();
  63 #pragma GCC novector
  64   for (int i = 0; i < N; ++i)
  65     if (a[i] != 4)
  66       abort ();
  67   return 0;
  68 }