gcc/testsuite/gcc.dg/autopar/pr39500-2.c

   1 /* pr39500: autopar fails to parallel */
   2 /* origin: nemokingdom@gmail.com(LiFeng) */
   3 /* { dg-do compile } */
   4 /* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops2-details" } */
   5
   6 int main (void)
   7 {
   8   int i;
   9   int x[1000];
  10
  11   for (i = 0; i < 101; i++)
  12     x[i] = x[i+100];
  13
  14   return x[12];
  15 }
  16
  17 /* This loop cannot be parallelized due to a dependence.  */
  18
  19 /* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 0 "parloops2" } } */