gcc/testsuite/gcc.target/i386/avx2-vect-aggressive.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx2 } */
   3 /* { dg-options "-mavx2 -O3 -fopenmp-simd -fdump-tree-vect-details" } */
   4
   5 #include "avx2-check.h"
   6 #define N 64
   7 float a[N];
   8 int c[N];
   9
  10 __attribute__ ((noinline)) int
  11 foo ()
  12 {
  13   int i, res = 0;
  14 #pragma omp simd safelen(8)
  15   for (i=0; i<N; i++)
  16   {
  17     float t = a[i];
  18     if (t > 0.0f & t < 1.0e+2f)
  19       if (c[i] != 0)
  20         res += 1;
  21   }
  22   return res;
  23 }
  24
  25 __attribute__ ((noinline)) float
  26 hundred ()
  27 {
  28   return 100.0f;
  29 }
  30
  31 static void
  32 avx2_test (void)
  33 {
  34   int i, res;
  35   for (i=0; i<N; i++)
  36     {
  37       c[i] = i % 4;
  38       if (i < N / 2)
  39         a[i] = (float) (i + 1);
  40       else
  41         a[i] = (float) i + hundred ();
  42     }
  43   if (foo () != 24)
  44     abort ();
  45 }
  46
  47 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  48