gcc/testsuite/gcc.dg/vect/no-scevccp-noreassoc-slp-reduc-7.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 16
   9 #define MAX 121
  10
  11 unsigned int ub[N] = {0,3,6,9,12,15,18,121,24,27,113,33,36,39,42,45};
  12
  13 /* Vectorization of reduction using loop-aware SLP (with unrolling).  */
  14
  15 __attribute__ ((noinline))
  16 int main1 (int n)
  17 {
  18   int i;
  19   unsigned int max = 50;
  20
  21   for (i = 0; i < n; i++) {
  22     max = max < ub[2*i] ? ub[2*i] : max;
  23     max = max < ub[2*i + 1] ? ub[2*i + 1] : max;
  24   }
  25
  26   /* Check results:  */
  27   if (max != MAX)
  28     abort ();
  29
  30   return 0;
  31 }
  32
  33 int main (void)
  34 {
  35   check_vect ();
  36
  37   main1 (N/2);
  38   return 0;
  39 }
  40
  41 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_int_min_max } } } */
  42 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail vect_no_int_min_max } } } */
  43