gcc/testsuite/gcc.dg/vect/vect-novect_gcond.c

   1 /* { dg-add-options vect_early_break } */
   2 /* { dg-require-effective-target vect_early_break_hw } */
   3 /* { dg-require-effective-target vect_int } */
   4 /* { dg-additional-options "-O3" } */
   5
   6 /* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" } } */
   7
   8 #include "tree-vect.h"
   9
  10 #define N 306
  11 #define NEEDLE 136
  12
  13 int table[N];
  14
  15 __attribute__ ((noipa))
  16 int foo (int i, unsigned short parse_tables_n)
  17 {
  18   parse_tables_n >>= 9;
  19   parse_tables_n += 11;
  20 #pragma GCC novector
  21   while (i < N && parse_tables_n--)
  22     table[i++] = 0;
  23
  24   return table[NEEDLE];
  25 }
  26
  27 int main ()
  28 {
  29   check_vect ();
  30
  31 #pragma GCC novector
  32   for (int j = 0; j < N; j++)
  33     table[j] = -1;
  34
  35   if (foo (0, 0xFFFF) != 0)
  36     __builtin_abort ();
  37
  38   return 0;
  39 }