gcc/testsuite/gcc.dg/vect/pr65947-7.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 43
   8
   9 /* Condition reduction with comparison is a different type to the data.  Will
  10    fail to vectorize.  */
  11
  12 int __attribute__ ((noipa))
  13 condition_reduction (short *a, int min_v, int *b)
  14 {
  15   int last = N + 65;
  16   short aval;
  17
  18   for (int i = 0; i < N; i++)
  19     {
  20       aval = a[i];
  21       if (b[i] < min_v)
  22         last = aval;
  23     }
  24   return last;
  25 }
  26
  27 int
  28 main (void)
  29 {
  30   short a[N] = {
  31   31, -32, 133, 324, 335, 36, 37, 45, 11, 65,
  32   1, -28, 3, 48, 5, -68, 7, 88, 89, 180,
  33   121, -122, 123, 124, -125, 126, 127, 128, 129, 130,
  34   11, 12, 13, 14, -15, -16, 17, 18, 19, 20,
  35   33, 27, 99
  36   };
  37   int b[N] = {
  38   11, -12, -13, 14, 15, 16, 17, 18, 19, 20,
  39   21, -22, 23, 24, -25, 26, 27, 28, 29, 30,
  40   1, 62, 3, 14, -15, 6, 37, 48, 99, 10,
  41   31, -32, 33, 34, -35, 36, 37, 56, 54, 22,
  42   73, 2, 87
  43   };
  44
  45   check_vect ();
  46
  47   int ret = condition_reduction (a, 16, b);
  48
  49   if (ret != 27)
  50     abort ();
  51
  52   return 0;
  53 }
  54
  55 /* { dg-final { scan-tree-dump "optimizing condition reduction with FOLD_EXTRACT_LAST" "vect" { target vect_fold_extract_last } } } */
  56 /* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" { target aarch64*-*-* } } } */