gcc/testsuite/gcc.dg/pr81192.c

   1 /* { dg-options "-Os -fdump-tree-pre-details" } */
   2
   3 #if __SIZEOF_INT__ == 2
   4 #define unsigned __UINT32_TYPE__
   5 #define int __INT32_TYPE__
   6 #endif
   7
   8 unsigned a;
   9 int b, c;
  10
  11 static int
  12 fn1 (int p1, int p2)
  13 {
  14   return p1 > 2147483647 - p2 ? p1 : p1 + p2;
  15 }
  16
  17 void
  18 fn2 (void)
  19 {
  20   int j;
  21   a = 30;
  22   for (; a;)
  23     for (; c; b = fn1 (j, 1))
  24       ;
  25 }
  26
  27 /* { dg-final { scan-tree-dump-times "(?n)find_duplicates: <bb .*> duplicate of <bb .*>" 1 "pre" } } */