gcc/testsuite/gcc.dg/vect/pr65947-6.c

   1 /* { dg-require-effective-target vect_condition } */
   2
   3 #include "tree-vect.h"
   4
   5 extern void abort (void) __attribute__ ((noreturn));
   6
   7 #define N 30
   8
   9 /* Condition reduction where loop type is different than the data type.  */
  10
  11 int
  12 condition_reduction (int *a, int min_v)
  13 {
  14   int last = N + 65;
  15
  16   for (char i = 0; i < N; i++)
  17     if (a[i] < min_v)
  18       last = a[i];
  19
  20   return last;
  21 }
  22
  23
  24 int
  25 main (void)
  26 {
  27   int a[N] = {
  28   67, 32, 45, 43, 21, -11, 12, 3, 4, 5,
  29   6, 76, -32, 56, -32, -1, 4, 5, 6, 99,
  30   43, 22, -3, 22, 16, 34, 55, 31, 87, 324
  31   };
  32
  33   check_vect ();
  34
  35   int ret = condition_reduction (a, 16);
  36
  37   if (ret != -3)
  38     abort ();
  39
  40   return 0;
  41 }
  42
  43 /* { dg-final { scan-tree-dump-times "LOOP VECTORIZED" 2 "vect" } } */
  44 /* { dg-final { scan-tree-dump-times "optimizing condition reduction with FOLD_EXTRACT_LAST" 4 "vect" { target vect_fold_extract_last } } } */
  45 /* { dg-final { scan-tree-dump-not "condition expression based on integer induction." "vect" } } */