gcc/testsuite/gcc.dg/tree-ssa/pr68529-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
   3
   4 void bar(char *s);
   5 int foo(unsigned short l)
   6 {
   7   char c[10000] = {};
   8   unsigned short nchar = 9999;
   9
  10   if (nchar <= l)
  11     return -1;
  12
  13   while(nchar-- != l)
  14     {
  15       c[nchar] = 'A';
  16     }
  17
  18   bar (c);
  19   return 0;
  20 }
  21
  22 /* { dg-final { scan-tree-dump "distributed: split to 0 loops and 1 library calls" "ldist" } } */
  23 /* { dg-final { scan-tree-dump "generated memset" "ldist" } } */