gcc/testsuite/gcc.dg/vect/vect-cond-13.c

   1 #include "tree-vect.h"
   2
   3 int a[1024];
   4 int b[1024];
   5
   6 int
   7 foo ()
   8 {
   9   int tem;
  10   for (int i = 0; i < 1024; ++i)
  11     {
  12       if (a[i] < 0)
  13         tem = -a[i] - 1;
  14       else
  15         tem = a[i];
  16       b[i] = tem + 10;
  17     }
  18   return tem;
  19 }
  20
  21 int main()
  22 {
  23   check_vect ();
  24
  25   for (int i = 0; i < 1024; ++i)
  26     {
  27       a[i] = i - 333;
  28       __asm__ volatile ("" ::: "memory");
  29     }
  30   int res = foo ();
  31   if (res != 1023 - 333)
  32     abort ();
  33   return 0;
  34 }
  35
  36 /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" { target vect_condition } } } */