gcc/testsuite/gcc.dg/vect/slp-reduc-5.c

   1 /* Disabling epilogues until we find a better way to deal with scans.  */
   2 /* { dg-additional-options "--param vect-epilogues-nomask=0" } */
   3 /* { dg-require-effective-target vect_int } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 #define N 128
   9
  10 int c[N];
  11
  12 /* Vectorization of reduction using loop-aware SLP.  */
  13
  14 __attribute__ ((noinline))
  15 int main1 (int n, int res0, int res1)
  16 {
  17   int i;
  18   int max0 = -100, max1 = -313;
  19
  20   for (i = 0; i < n; i++) {
  21     max1 = max1 < c[2*i+1] ? c[2*i+1] : max1;
  22     max0 = max0 < c[2*i] ? c[2*i] : max0;
  23   }
  24
  25   /* Check results:  */
  26   if (max0 != res0
  27       || max1 != res1)
  28     abort ();
  29
  30   return 0;
  31 }
  32
  33 int main (void)
  34 {
  35   int i;
  36
  37   check_vect ();
  38
  39   for (i = 0; i < N; i++)
  40     c[i] = (i+3) * -1;
  41
  42   c[0] = c[1] = -100;
  43   main1 (N/2, -5, -6);
  44   return 0;
  45 }
  46
  47 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { xfail vect_no_int_min_max } } } */
  48 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail vect_no_int_min_max } } } */
  49 /* { dg-final { scan-tree-dump-times "VEC_PERM_EXPR" 0 "vect" } } */