gcc/testsuite/gcc.dg/tree-ssa/reassoc-7.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-reassoc1" } */
   3 int main(int a, int b, int c, int d, int e, int f, int g, int h)
   4 {
   5   /* Should be transformed into a + c + d + e + g + 15 */
   6   int i = (a + 9) + (c + d);
   7   int j = (e + 4) + (2 + g);
   8   e = i + j;
   9   return e;
  10 }
  11 /* { dg-final { scan-tree-dump-times "\\\+ 15" 1 "reassoc1"} } */
  12 /* { dg-final { cleanup-tree-dump "reassoc1" } } */