gcc/testsuite/gcc.dg/vect/no-scevccp-noreassoc-slp-reduc-7.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 16
   7 #define MAX 121
   8
   9 unsigned int ub[N] = {0,3,6,9,12,15,18,121,24,27,113,33,36,39,42,45};
  10
  11 /* Vectorization of reduction using loop-aware SLP (with unrolling).  */
  12
  13 __attribute__ ((noinline))
  14 int main1 (int n)
  15 {
  16   int i;
  17   unsigned int max = 50;
  18
  19   for (i = 0; i < n; i++) {
  20     max = max < ub[2*i] ? ub[2*i] : max;
  21     max = max < ub[2*i + 1] ? ub[2*i + 1] : max;
  22   }
  23
  24   /* Check results:  */
  25   if (max != MAX)
  26     abort ();
  27
  28   return 0;
  29 }
  30
  31 int main (void)
  32 {
  33   check_vect ();
  34
  35   main1 (N/2);
  36   return 0;
  37 }
  38
  39 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_int_min_max } } } */
  40 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail vect_no_int_min_max } } } */
  41