gcc/testsuite/gcc.dg/vect/vect-cond-reduc-4.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_condition } */
   4 /* { dg-require-effective-target vect_double } */
   5
   6 #include "tree-vect.h"
   7
   8 extern void abort (void) __attribute__ ((noreturn));
   9
  10 #define N 27
  11
  12 /* Condition reduction with different types.  */
  13
  14 int
  15 condition_reduction (double *a, double min_v)
  16 {
  17   int last = 0;
  18
  19   for (int i = 0; i < N; i++)
  20     if (a[i] < min_v)
  21       last = i;
  22
  23   return last;
  24 }
  25
  26 int
  27 main (void)
  28 {
  29   double a[N] = {
  30   11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
  31   1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
  32   21, 22, 23, 24, 25, 26, 27
  33   };
  34
  35   check_vect ();
  36
  37   int ret = condition_reduction (a, 10);
  38   if (ret != 18)
  39     abort ();
  40
  41   return 0;
  42 }
  43
  44 /* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 2 "vect" } } */
  45 /* { dg-final { scan-tree-dump-times "optimizing condition reduction with FOLD_EXTRACT_LAST(?:(?!Analysis failed).)*Analysis succeeded" 2 "vect" { target { vect_fold_extract_last && vect_pack_trunc } } } } */
  46 /* { dg-final { scan-tree-dump-times "condition expression based on integer induction." 2 "vect" { target { ! vect_fold_extract_last } } } } */
  47