gcc/testsuite/gcc.dg/autopar/parloops-exit-first-loop-alt-pr66652.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-parallelize-loops=2 -fdump-tree-parloops2-details" } */
   3
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <limits.h>
   7
   8 unsigned int
   9 f (unsigned int n, unsigned int sum)
  10 {
  11   unsigned int i;
  12
  13   i = UINT_MAX;
  14   do
  15     {
  16       sum += i % 13;
  17       i++;
  18     }
  19   while (i < n - 1);
  20
  21   return sum;
  22 }
  23
  24 /* { dg-final { scan-tree-dump-times "parallelizing inner loop" 1 "parloops2" } } */
  25 /* { dg-final { scan-tree-dump-times "alternative exit-first loop transform succeeded" 0 "parloops2" } } */